Merge lp:~mc-return/compiz/compiz0.9.9.merge-plugin-freewins into lp:compiz/0.9.9

[Sam Spilsbury]

Added the plug-in "Freely Transformable Windows" aka freewins converted from git to bzr (including full history) to lp:compiz.

(LP: #1012194)

This MP adds the spectacular plugin freewins to lp:compiz.

It is fully working and after a few fixes fully stable.

The only problem left is, that the user cannot re-grab a
already transformed window, while multiple transformations
and grabs of a single window during time of animation works.

Selecting transformed windows (via Switcher for example) works
though and resetting the applied transformations via shortcut
is also possible, so the user will never end up with a transformed
window that cannot be reverted.

The grab logic has yet to be revisited though to make this plugin
work perfectly...

[Sam Spilsbury (smspillaz)]

This is fine. The reason why users can't re-grab windows is because the input-prevention code has been commented out. Its a pretty easy fix though if we re-enable it, have a chat on IRC about it.

review: Approve

[PS Jenkins bot (ps-jenkins)]

FAILED: Autolanding.
More details in the following jenkins job:
http://jenkins.qa.ubuntu.com/job/compiz-mbs-autolanding/25/
Executed test runs:
    FAILURE: http://jenkins.qa.ubuntu.com/job/compiz-arm-mbs-autolanding/./build=panda-pbuilder,distribution=raring,flavor=armhf/23/console
    FAILURE: http://jenkins.qa.ubuntu.com/job/compiz-x86-mbs-autolanding/./build=pbuilder,distribution=raring,flavor=amd64/25/console
    FAILURE: http://jenkins.qa.ubuntu.com/job/compiz-x86-mbs-autolanding/./build=pbuilder,distribution=raring,flavor=i386/25/console

review: Needs Fixing (continuous-integration)

[Stephen M. Webb (bregma)]

Looks like this MP is missing required changes to the inline packaging.

[Francis Ginther (fginther)]

The armhf build was terminated before completion to allow another branch to be processed. However, the amd64 and i386 jobs already failed due to the following packaging error:

dh_install: usr/share/compiz/freewins.xml exists in debian/tmp but is not installed to anywhere
dh_install: usr/lib/compiz/libfreewins.so exists in debian/tmp but is not installed to anywhere

[Sam Spilsbury (smspillaz)]

Ah missed that. You'll need to fix that @MCR1

On Fri, Feb 22, 2013 at 11:07 AM, Stephen M. Webb
<email address hidden> wrote:
> Looks like this MP is missing required changes to the inline packaging.
> --
> https://code.launchpad.net/~mc-return/compiz/compiz0.9.9.merge-plugin-freewins/+merge/146291
> You are reviewing the proposed merge of lp:~mc-return/compiz/compiz0.9.9.merge-plugin-freewins into lp:compiz.

--
Sam Spilsbury

[MC Return (mc-return)]

bregma, fginther, smspillaz: Yeah, sorry - I missed that :)
I will fix it ASAP.

[MC Return (mc-return)]

Ok, should be fixed now. :)

[MC Return (mc-return)]

http://imagebin.org/247448 :)

[Sam Spilsbury (smspillaz)]

Dunno why compiz-ci hasn't re-run this one yet.

review: Needs Resubmitting

[PS Jenkins bot (ps-jenkins)]

PASSED: Continuous integration, rev:3329
http://jenkins.qa.ubuntu.com/job/compiz-ci/100/
Executed test runs:
    SUCCESS: http://jenkins.qa.ubuntu.com/job/compiz-gles-ci/./build=pbuilder,distribution=raring,flavor=amd64/137/console
    SUCCESS: http://jenkins.qa.ubuntu.com/job/compiz-pbuilder/./build=pbuilder,distribution=raring,flavor=amd64/489/console

Click here to trigger a rebuild:
http://jenkins.qa.ubuntu.com/job/compiz-ci/100//rebuild/?

review: Approve (continuous-integration)

[Sam Spilsbury (smspillaz)]

It'll do for now.

review: Approve

[PS Jenkins bot (ps-jenkins)]

review: Approve (continuous-integration)

=== modified file 'debian/compiz-plugins.install'
--- debian/compiz-plugins.install	2013-02-17 07:28:12 +0000
+++ debian/compiz-plugins.install	2013-02-28 06:12:23 +0000
@@ -11,6 +11,7 @@
 debian/tmp/usr/*/compiz/*extrawm.*
 debian/tmp/usr/*/compiz/*fadedesktop.*
 debian/tmp/usr/*/compiz/*firepaint.*
+debian/tmp/usr/*/compiz/*freewins.*
 debian/tmp/usr/*/compiz/*gears.*
 debian/tmp/usr/*/compiz/*imgjpeg.*
 debian/tmp/usr/*/compiz/*imgsvg.*

=== modified file 'plugins/CMakeLists.txt'
--- plugins/CMakeLists.txt	2013-02-13 04:30:07 +0000
+++ plugins/CMakeLists.txt	2013-02-28 06:12:23 +0000
@@ -23,6 +23,7 @@
 # disable plugins which won't work on ES2 builds
 if (BUILD_GLES)
 
+    set (COMPIZ_DISABLE_PLUGIN_FREEWINS ON)
     set (COMPIZ_DISABLE_PLUGIN_GEARS ON)
     set (COMPIZ_DISABLE_PLUGIN_TD ON)
     set (COMPIZ_DISABLE_PLUGIN_COLORFILTER ON)

=== added directory 'plugins/freewins'
=== added file 'plugins/freewins/AUTHORS'
--- plugins/freewins/AUTHORS	1970-01-01 00:00:00 +0000
+++ plugins/freewins/AUTHORS	2013-02-28 06:12:23 +0000
@@ -0,0 +1,8 @@
+The freewins plugin was written by:
+
+Rodolfo D. Granata (warlock_mza) <[e-mail]>
+Sam Spilsbury (smspillaz) <[e-mail]>
+
+Modifications by
+
+enigma_0Z <[e-mail]>

=== added file 'plugins/freewins/CMakeLists.txt'
--- plugins/freewins/CMakeLists.txt	1970-01-01 00:00:00 +0000
+++ plugins/freewins/CMakeLists.txt	2013-02-28 06:12:23 +0000
@@ -0,0 +1,8 @@
+find_package (Compiz REQUIRED)
+
+include (CompizPlugin)
+include (FindOpenGL)
+
+if (OPENGL_GLU_FOUND)
+compiz_plugin (freewins PLUGINDEPS composite opengl PKGDEPS cairo-xlib cairo LIBRARIES ${OPENGL_glu_LIBRARY} INCDIRS ${OPENGL_INCLUDE_DIR} LDFLAGSADD)
+endif (OPENGL_GLU_FOUND)

=== added file 'plugins/freewins/COPYING'
--- plugins/freewins/COPYING	1970-01-01 00:00:00 +0000
+++ plugins/freewins/COPYING	2013-02-28 06:12:23 +0000
@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
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+price.  Our General Public Licenses are designed to make sure that you
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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=== added file 'plugins/freewins/freewins.xml.in'
--- plugins/freewins/freewins.xml.in	1970-01-01 00:00:00 +0000
+++ plugins/freewins/freewins.xml.in	2013-02-28 06:12:23 +0000
@@ -0,0 +1,398 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<compiz>
+    <plugin name="freewins" useBcop="true">
+	<_short>Freely Transformable Windows</_short>
+	<_long>Freely transform windows</_long>
+	<category>Effects</category>
+	<deps>
+		<requirement>
+			<plugin>opengl</plugin>
+		</requirement>
+		<relation type="after">
+			<plugin>opengl</plugin>
+			<plugin>scale</plugin>
+			<plugin>ring</plugin>
+			<plugin>shift</plugin>
+			<plugin>shelf</plugin>
+			<plugin>group</plugin>
+			<plugin>wobbly</plugin>
+			<plugin>animation</plugin>
+			<plugin>water</plugin>
+			<plugin>cubeaddon</plugin>
+			<plugin>3d</plugin>
+		</relation>
+	</deps>
+	<options>
+	<option name='rotate' type='action'/>
+	<option name='increment_rotate' type='action'/>
+	<option name='scale' type='action'/>
+	<group>
+		<_short>Free Transformation</_short>
+		<option type="button" name="initiate_rotation_button">
+			<_short>Initiate Rotation Button</_short>
+			<_long>Mouse button to start free rotation.</_long>
+			<default>&lt;Control&gt;&lt;Shift&gt;Button1</default>
+		</option>
+		<option type="button" name="initiate_scale_button">
+			<_short>Initiate Scaling Button</_short>
+			<_long>Mouse button to start free scaling.</_long>
+			<default>&lt;Control&gt;&lt;Shift&gt;Button3</default>
+		</option>
+		<option type="button" name="reset_button">
+			<_short>Reset Transformation Button</_short>
+			<_long>Mouse button to reset the transformation.</_long>
+			<default>&lt;Control&gt;&lt;Shift&gt;Button2</default>
+		</option>
+		<option type="key" name="reset_key">
+			<_short>Reset Transformation Key</_short>
+			<_long>Keyboard shortcut to reset the transformation.</_long>
+			<default>&lt;Control&gt;&lt;Shift&gt;r</default>
+		</option>
+		<option type="key" name="toggle_axis_key">
+			<_short>Axis Help Toggle</_short>
+			<_long>Keyboard shortcut to toggle the visibility of the axis selection helper.</_long>
+			<default>&lt;Control&gt;&lt;Shift&gt;h</default>
+		</option>
+		<subgroup>
+		<_short>Transformation Behaviour</_short>
+		<option name="snap_mods" type="list">
+		  <_short>Snap Modifier</_short>
+		  <_long>Use these bindings to enable/disable snapping.</_long>
+			  <type>int</type>
+			  <min>0</min>
+			  <max>3</max>
+			  <desc>
+				  <value>0</value>
+				  <_name>Shift</_name>
+			  </desc>
+			  <desc>
+				  <value>1</value>
+				  <_name>Alt</_name>
+			  </desc>
+			  <desc>
+				  <value>2</value>
+				  <_name>Control</_name>
+			  </desc>
+			  <desc>
+				  <value>3</value>
+				  <_name>Meta</_name>
+			  </desc>
+		</option>
+		</subgroup>
+		<subgroup>
+		<_short>Rotation</_short>
+		  <option name="invert_mods" type="list">
+		  <_short>Invert Modifier</_short>
+		  <_long>Use these bindings to invert the rotation mode.</_long>
+			  <type>int</type>
+			  <min>0</min>
+			  <max>3</max>
+			  <desc>
+				  <value>0</value>
+				  <_name>Shift</_name>
+			  </desc>
+			  <desc>
+				  <value>1</value>
+				  <_name>Alt</_name>
+			  </desc>
+			  <desc>
+				  <value>2</value>
+				  <_name>Control</_name>
+			  </desc>
+			  <desc>
+				  <value>3</value>
+				  <_name>Meta</_name>
+			  </desc>
+		</option>
+		</subgroup>
+    </group>
+	    <group>
+	    <_short>Manual Transformation</_short>
+		<subgroup>
+		    <_short>Scaling</_short>
+		<option type="button" name="scale_up_button">
+			    <_short>Scale Up Button</_short>
+			    <_long>Mouse button to scale the window up by one increment.</_long>
+				<default>&lt;Control&gt;&lt;Shift&gt;Button4</default>
+		</option>
+		<option type="button" name="scale_down_button">
+			    <_short>Scale Down Button</_short>
+			    <_long>Mouse button to scale the window down by one increment.</_long>
+				<default>&lt;Control&gt;&lt;Shift&gt;Button5</default>
+		</option>
+		    <_short>Scaling</_short>
+		<option type="key" name="scale_up_key">
+			    <_short>Scale Up Key</_short>
+			    <_long>Keyboard shortcut to scale the window up by one increment.</_long>
+				<default>&lt;Control&gt;&lt;Shift&gt;Page_Up</default>
+		</option>
+		<option type="key" name="scale_down_key">
+			    <_short>Scale Down Key</_short>
+			    <_long>Keyboard shortcut to scale the window down by one increment.</_long>
+				<default>&lt;Control&gt;&lt;Shift&gt;Page_Down</default>
+		</option>
+	    </subgroup>
+	    <subgroup>
+	    <_short>Rotation</_short>
+		    <option type="key" name="rotate_up_key">
+				<_short>Rotate Up Key</_short>
+				<_long>Keyboard shortcut to rotate the window up by one increment.</_long>
+		    		<default>&lt;Control&gt;&lt;Shift&gt;w</default>
+		    </option>
+		    <option type="key" name="rotate_down_key">
+				<_short>Rotate Down Key</_short>
+				<_long>Keyboard shortcut to rotate the window down by one increment.</_long>
+				<default>&lt;Control&gt;&lt;Shift&gt;s</default>
+		    </option>	
+		    <option type="key" name="rotate_left_key">
+				<_short>Rotate Left Key</_short>
+				<_long>Keyboard shortcut to rotate the window left by one increment.</_long>
+				<default>&lt;Control&gt;&lt;Shift&gt;d</default>
+		    </option>
+		    <option type="key" name="rotate_right_key">
+				<_short>Rotate Right Key</_short>
+				<_long>Keyboard shortcut to rotate the window right by one increment.</_long>
+				<default>&lt;Control&gt;&lt;Shift&gt;a</default>
+		    </option>
+		    <option type="key" name="rotate_c_key">
+				<_short>Rotate Clockwise Key</_short>
+				<_long>Keyboard shortcut to rotate the window clockwise by one increment.</_long>
+				<default>&lt;Control&gt;&lt;Shift&gt;e</default>
+		    </option>
+		    <option type="key" name="rotate_cc_key">
+				<_short>Rotate Counter-Clockwise Key</_short>
+				<_long>Keyboard shortcut to rotate the window counter-clockwise by one increment.</_long>
+				<default>&lt;Control&gt;&lt;Shift&gt;q</default>
+		    </option>
+		</subgroup>
+		</group>
+		<group>
+		<_short>Free Transformation</_short>
+	    <subgroup>
+	    <_short>Transformation Behaviour</_short>
+		    <option type="bool" name="snap">
+				    <_short>Snap By Default</_short>
+				    <_long>Snap to common points by default.</_long>
+				    <default>False</default>
+		    </option>
+		<option type="int" name="snap_threshold">
+				    <_short>Snap Threshold</_short>
+				    <_long>Snap to every one of these angles.</_long>
+				    <min>1</min>
+				    <max>100</max>
+		    </option>
+		    <option type="float" name="mouse_sensitivity">
+				<_short>Mouse Sensitivity</_short>
+				<_long>Adjust how sensitive the mouse movement should be.</_long>
+				<default>1.0</default>
+				<min>0.1</min>
+				<max>10.0</max>
+		    </option>
+	    </subgroup>
+		    <subgroup>
+		    <_short>Scaling</_short>
+			<option type="int" name="scale_mode">
+				    <_short>Scale Mode</_short>
+				    <_long>Select the method to scale windows.</_long>
+				    <desc>
+		            <value>0</value><name>To Centre</name>
+		        </desc>
+				    <desc>
+		            <value>1</value><name>To Opposite Corner</name>
+		        </desc>
+		        <min>0</min>
+		        <max>0</max>
+		        <default>0</default>
+			</option>
+			<option type="bool" name="allow_negative">
+				    <_short>Allow Negative</_short>
+				    <_long>Allow negative scaling</_long>
+				    <default>True</default>
+			</option>
+			<option type="bool" name="scale_uniform">
+				    <_short>Maintain Aspect Ratio</_short>
+				    <_long>Keep the aspect ratio of the window constant when scaling.</_long>
+				    <default>True</default>
+			</option>
+			<option type="float" name="min_scale">
+				    <_short>Minimum scale</_short>
+				    <_long>How small the scale is allowed to be when 'Allow Negative' is not activated.</_long>
+				    <default>0.1</default>
+				    <min>0.01</min>
+				    <max>1.0</max>
+			</option>
+		    </subgroup>
+		    <subgroup>
+		    <_short>Rotation</_short>
+			<option type="int" name="z_axis_rotation">
+				    <_short>Rotation Type</_short>
+				    <_long>Choose the type of the rotation.</_long>
+				    <desc>
+		            <value>0</value><name>Always 2D</name>
+		        </desc>
+				    <desc>
+		            <value>1</value><name>Always 3D</name>
+		        </desc>
+				    <desc>
+		            <value>2</value><name>Determine On Click</name>
+		        </desc>
+				    <desc>
+		            <value>3</value><name>Interchangeable</name>
+		        </desc>
+				    <desc>
+		            <value>4</value><name>Switch</name>
+		        </desc>
+				    <desc>
+		            <value>5</value><name>Trackball</name>
+		        </desc>
+		        <default>2</default>
+		        <min>0</min><max>3</max>
+			</option>
+			<option type="int" name="rotation_axis">
+				    <_short>Rotation Axis</_short>
+				    <_long>How Freely Transformable Windows should determine the rotation axis.</_long>
+				    <desc>
+		            <value>0</value><name>Always Centre</name>
+		        </desc>
+				    <desc>
+		            <value>1</value><name>Click Point</name>
+		        </desc>
+				    <desc>
+		            <value>2</value><name>Opposite to Click</name>
+		        </desc>
+				    <desc>
+		            <value>3</value><name>Nearest Corner</name>
+		        </desc>
+		        <min>0</min>
+		        <max>2</max>
+		        <default>0</default>
+			</option>
+		    <option type="float" name="TD_percent">
+		        <_short>3D Rotation Percentage</_short>
+		        <_long>The percentage of the window area used for 3D rotation.</_long>
+		        <default>35.0</default>
+		        <min>10.0</min>
+		        <max>90.0</max>
+		    </option>
+			<option type="bool" name="auto_zoom">
+				    <_short>Auto-Zoom</_short>
+				    <_long>Auto-Zoom when rotating so that windows do not get too large.</_long>
+				    <default>False</default>
+			</option>
+			<option type="bool" name="disable_on_transformed_screen">
+				    <_short>Disable On Transformed Screen</_short>
+				    <_long>Disable the rotation on a transformed screen. This prevents ugly looking clipped windows when the screen is transformed.</_long>
+				    <default>False</default>
+			</option>
+		</subgroup>
+		<subgroup>
+		    <_short>Transformation Behaviour</_short>
+		    <option type="float" name="speed">
+		        <_short>Window Rotation Speed</_short>
+		        <_long>How fast the window should rotate.</_long>
+		        <default>5.0</default>
+		        <min>0.1</min>
+		        <max>15.0</max>
+		    </option>
+		</subgroup>
+    </group>
+    <group>
+	    <_short>Manual Transformation</_short>
+	    <subgroup>
+		<_short>Rotation</_short>
+		    <option type="float" name="rotate_increment_amount">
+				    <_short>Rotate Increment Amount</_short>
+				    <_long>How far to rotate a window when rotating by an 'increment'.</_long>
+				    <default>10.0</default>
+				    <min>1.0</min>
+				    <max>100.0</max>
+			</option>
+	    </subgroup>
+	    <subgroup>
+	    <_short>Scaling</_short> 
+		<option type="float" name="scale_increment_amount">
+				<_short>Scale Increment Amount</_short>
+				<_long>How much to scale a window by when scaling by an 'increment'.</_long>
+				<default>0.3</default>
+				<min>0.01</min>
+				<max>0.5</max>
+		    </option>
+		</subgroup>
+		</group>
+	    <group>
+	    <_short>Misc</_short>
+		<subgroup>
+		<_short>Input Prevention</_short>
+		<option name="shape_window_types" type="match">
+		  <_short>Prevented Input Window Types</_short>
+		  <_long>Window types that should be shaped. Disable problematic windows here.</_long>
+		  <default>(Toolbar | Utility | Dialog | ModalDialog | Normal)</default>
+		</option>
+		<option type="bool" name="do_shape_input">
+			    <_short>Prevent Input</_short>
+			    <_long>Prevent input for transformed windows.</_long>
+			    <default>True</default>
+		    </option>
+		<option type="bool" name="immediate_moves">
+		    <_short>Immediate Moves</_short>
+		    <_long>Don't allow plugins like wobbly to manipulate the transformed window while it's being moved.</_long>
+		    <default>True</default>
+		</option>
+		</subgroup>
+	       <subgroup>
+		   <_short>Helper Options</_short>	    
+		    <option type="color" name="circle_color" >
+						<_short>Helper Circle Color</_short>
+						<_long>Color and opacity of the circle.</_long>
+						<default>
+							<red>0x5400</red>
+							<green>0xBE00</green>
+							<blue>0xFB00</blue>
+							<alpha>0x8000</alpha>
+						</default>
+			</option>
+			<option type="color" name="line_color" >
+						<_short>Helper Line Color</_short>
+						<_long>Color and opacity of the helper line around the circle.</_long>
+						<default>
+							<red>0x1800</red>
+							<green>0x0000</green>
+							<blue>0xFF00</blue>
+							<alpha>0xFFFF</alpha>
+						</default>
+			</option>
+			<option type="color" name="cross_line_color" >
+						<_short>Helper Cross Line Color</_short>
+						<_long>Color and opacity of the cross lines.</_long>
+						<default>
+							<red>0x1800</red>
+							<green>0x0000</green>
+							<blue>0xFF00</blue>
+							<alpha>0xFFFF</alpha>
+						</default>
+			</option>
+		<option type="bool" name="show_circle">
+			    <_short>Show 3D Rotation Circle</_short>
+			    <_long>Show the click area for 3D rotation.</_long>
+			    <default>True</default>
+		    </option>
+		<option type="bool" name="show_gizmo">
+			    <_short>Show Rotation Gizmo</_short>
+			    <_long>Show the rotation axis info.</_long>
+			    <default>True</default>
+		    </option>
+		<option type="bool" name="show_cross">
+			    <_short>Show Crosshair</_short>
+			    <_long>Show the crosshair for scaling click regions.</_long>
+			    <default>True</default>
+		    </option>
+		<option type="bool" name="show_region">
+			    <_short>Show Input Regions</_short>
+			    <_long>Show the input region rectangle.</_long>
+			    <default>True</default>
+		    </option>
+		</subgroup>
+		</group>
+	   </options>
+    </plugin>
+</compiz>

=== added directory 'plugins/freewins/src'
=== added file 'plugins/freewins/src/action.cpp'
--- plugins/freewins/src/action.cpp	1970-01-01 00:00:00 +0000
+++ plugins/freewins/src/action.cpp	2013-02-28 06:12:23 +0000
@@ -0,0 +1,763 @@
+/**
+ * Compiz Fusion Freewins plugin
+ *
+ * action.cpp
+ *
+ * Copyright (C) 2007  Rodolfo Granata <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author(s):
+ * Rodolfo Granata <[e-mail]>
+ * Sam Spilsbury <[e-mail]>
+ *
+ * Button binding support and Reset added by:
+ * enigma_0Z <[e-mail]>
+ *
+ * Most of the input handling here is based on
+ * the shelf plugin by
+ *        : Kristian Lyngstøl <[e-mail]>
+ *        : Danny Baumann <[e-mail]>
+ *
+ * Description:
+ *
+ * This plugin allows you to freely transform the texture of a window,
+ * whether that be rotation or scaling to make better use of screen space
+ * or just as a toy.
+ *
+ * Todo:
+ *  - Fully implement an input redirection system by
+ *    finding an inverse matrix, multiplying by it,
+ *    translating to the actual window co-ords and
+ *    XSendEvent() the co-ords to the actual window.
+ *  - Code could be cleaner
+ *  - Add timestep and speed options to animation
+ *  - Add window hover-over info via paintOutput : i.e
+ *    - Resize borders
+ *    - 'Reset' Button
+ *    - 'Scale' Button
+ *    - 'Rotate' Button
+ */
+
+/* TODO: Finish porting stuff to actions */
+
+#include "freewins.h"
+
+
+/* ------ Actions -------------------------------------------------------*/
+
+/* Initiate Mouse Rotation */
+bool
+FWScreen::initiateFWRotate (CompAction         *action,
+			    CompAction::State  state,
+			    CompOption::Vector options)
+{
+    CompWindow* w;
+    CompWindow *useW;
+    Window xid;
+
+    xid = CompOption::getIntOptionNamed (options, "window", 0);
+
+    w   = screen->findWindow (xid);
+    useW = screen->findWindow (xid);
+
+    if (w)
+    {
+
+	foreach (FWWindowInputInfo *info, mTransformedWindows)
+	{
+	    if (info->ipw)
+		if (w->id () == info->ipw)
+		/* The window we just grabbed was actually
+		 * an IPW, get the real window instead
+		 */
+		    useW = getRealWindow (w);
+	}
+
+	mRotateCursor = XCreateFontCursor (screen->dpy (), XC_fleur);
+
+	if (!screen->otherGrabExist ("freewins", 0))
+	    if (!mGrabIndex)
+	    {
+		mGrabIndex = screen->pushGrab (0, "freewins");
+	    }
+    }
+
+    if (useW)
+    {
+	if (true || optionGetShapeWindowTypes ().evaluate (useW))
+	{
+	    FREEWINS_WINDOW (useW);
+
+	    int x = CompOption::getIntOptionNamed (options, "x",
+					       useW->x () + (useW->width () / 2));
+	    int y = CompOption::getIntOptionNamed (options, "y",
+					       useW->y () + (useW->height () / 2));
+
+	    int mods = CompOption::getIntOptionNamed (options, "modifiers", 0);
+
+	    mGrabWindow = useW;
+
+	    fww->mGrab = grabRotate;
+
+	    /* Save current scales and angles */
+
+	    fww->mAnimate.oldAngX = fww->mTransform.angX;
+	    fww->mAnimate.oldAngY = fww->mTransform.angY;
+	    fww->mAnimate.oldAngZ = fww->mTransform.angZ;
+	    fww->mAnimate.oldScaleX = fww->mTransform.scaleX;
+	    fww->mAnimate.oldScaleY = fww->mTransform.scaleY;
+
+	    if (pointerY > fww->mIMidY)
+	    {
+		if (pointerX > fww->mIMidX)
+		    fww->mCorner = CornerBottomRight;
+		else if (pointerX < fww->mIMidX)
+		    fww->mCorner = CornerBottomLeft;
+	    }
+	    else if (pointerY < fww->mIMidY)
+	    {
+		if (pointerX > fww->mIMidX)
+		    fww->mCorner = CornerTopRight;
+		else if (pointerX < fww->mIMidX)
+		    fww->mCorner = CornerTopLeft;
+	    }
+
+	    switch (optionGetZAxisRotation ())
+	    {
+		case ZAxisRotationAlways3d:
+		    fww->mCan3D = TRUE;
+		    fww->mCan2D = FALSE;
+		    break;
+
+		case ZAxisRotationAlways2d:
+		    fww->mCan3D = FALSE;
+		    fww->mCan2D = TRUE;
+		    break;
+
+		case ZAxisRotationDetermineOnClick:
+		case ZAxisRotationSwitch:
+		    fww->determineZAxisClick (pointerX, pointerY, FALSE);
+		    break;
+
+		case ZAxisRotationInterchangeable:
+		    fww->mCan3D = TRUE;
+		    fww->mCan2D = TRUE;
+		    break;
+
+		default:
+		    break;
+	    }
+
+	    /* Set the rotation axis */
+
+	    switch (optionGetRotationAxis ())
+	    {
+		case RotationAxisAlwaysCentre:
+		default:
+		    fww->calculateInputOrigin (WIN_REAL_X (mGrabWindow) +
+					       WIN_REAL_W (mGrabWindow) / 2.0f,
+					       WIN_REAL_Y (mGrabWindow) +
+					       WIN_REAL_H (mGrabWindow) / 2.0f);
+		    fww->calculateOutputOrigin (WIN_OUTPUT_X (mGrabWindow) +
+						WIN_OUTPUT_W (mGrabWindow) / 2.0f,
+						WIN_OUTPUT_Y (mGrabWindow) +
+						WIN_OUTPUT_H (mGrabWindow) / 2.0f);
+		    break;
+
+		case RotationAxisClickPoint:
+		    fww->calculateInputOrigin (mClick_root_x, mClick_root_y);
+		    fww->calculateOutputOrigin (mClick_root_x, mClick_root_y);
+		    break;
+
+		case RotationAxisOppositeToClick:
+		    fww->calculateInputOrigin (useW->x () + useW->width () - mClick_root_x,
+					       useW->y () + useW->height () - mClick_root_y);
+		    fww->calculateOutputOrigin (useW->x () + useW->width () - mClick_root_x,
+						useW->y () + useW->height () - mClick_root_y);
+		    break;
+	    }
+
+	    /* Announce that we grabbed the window */
+	    useW->grabNotify (x, y, mods,  CompWindowGrabMoveMask |
+			      CompWindowGrabButtonMask);
+
+	    /* Shape the window beforehand and avoid a stale grab */
+	    if (fww->canShape ())
+		if (fww->handleWindowInputInfo ())
+		    fww->adjustIPW ();
+
+	    cScreen->damageScreen ();
+
+	    if (state & CompAction::StateInitButton)
+		action->setState (action->state () | CompAction::StateTermButton);
+
+	}
+    }
+    return true;
+}
+
+bool
+FWScreen::terminateFWRotate (CompAction          *action,
+			     CompAction::State   state,
+			     CompOption::Vector  options)
+{
+    if (mGrabWindow && mGrabIndex)
+    {
+	FREEWINS_WINDOW (mGrabWindow);
+	if (fww->mGrab == grabRotate)
+	{
+	    int distX, distY;
+
+	    fww->window->ungrabNotify ();
+
+	    switch (optionGetRotationAxis ())
+	    {
+		case RotationAxisClickPoint:
+		case RotationAxisOppositeToClick:
+
+		    distX =  (fww->mOutputRect.x1 () +
+			      (fww->mOutputRect.width ()) / 2.0f) -
+			     (WIN_REAL_X (mGrabWindow) +
+			      WIN_REAL_W (mGrabWindow) / 2.0f);
+		    distY = (fww->mOutputRect.y1 () +
+			     (fww->mOutputRect.height ()) / 2.0f) -
+			    (WIN_REAL_Y (mGrabWindow) +
+			     WIN_REAL_H (mGrabWindow) / 2.0f);
+
+		    mGrabWindow->move (distX, distY, true);
+		    mGrabWindow->syncPosition ();
+
+		    fww->calculateInputOrigin (WIN_REAL_X (mGrabWindow) +
+					       WIN_REAL_W (mGrabWindow) / 2.0f,
+					       WIN_REAL_Y (mGrabWindow) +
+					       WIN_REAL_H (mGrabWindow) / 2.0f);
+		    fww->calculateOutputOrigin (WIN_OUTPUT_X (mGrabWindow) +
+						WIN_OUTPUT_W (mGrabWindow) / 2.0f,
+						WIN_OUTPUT_Y (mGrabWindow) +
+						WIN_OUTPUT_H (mGrabWindow) / 2.0f);
+
+		    break;
+		default:
+		    break;
+	    }
+
+	    if (fww->canShape ())
+		if (fww->handleWindowInputInfo ())
+		    fww->adjustIPW ();
+
+	    screen->removeGrab (mGrabIndex, 0);
+	    mGrabIndex = 0;
+	    mGrabWindow = NULL;
+	    fww->mGrab = grabNone;
+	}
+    }
+
+    action->setState (action->state () & ~(CompAction::StateTermKey |
+					   CompAction::StateTermButton));
+
+    return false;
+}
+
+/*static void FWMoveWindowToCorrectPosition (CompWindow *w, float distX, float distY)
+{
+
+	FREEWINS_WINDOW (w);    action->setState (action->state () & ~(CompAction::StateTermKey |
+					   CompAction::StateTermButton));
+
+	fprintf(stderr, "distX is %f distY is %f midX and midY are %f %f\n", distX, distY, fww->mIMidX, fww->mIMidY);
+	
+	moveWindow (w, distX * (1 + (1 - fww->mTransform.scaleX)), distY * (1 + (1 - fww->mTransform.scaleY)), TRUE, FALSE);
+	
+	syncWindowPosition (w);
+}*/
+
+/* Initiate Scaling */
+bool
+FWScreen::initiateFWScale (CompAction         *action,
+			   CompAction::State  state,
+			   CompOption::Vector options)
+{
+    CompWindow* w;
+    CompWindow *useW;
+    Window xid;
+
+    xid = CompOption::getIntOptionNamed (options, "window", 0);
+    w = screen->findWindow (xid);
+    useW = screen->findWindow (xid);
+
+    if (w)
+    {
+	foreach (FWWindowInputInfo *info, mTransformedWindows)
+	{
+	    if (info->ipw)
+		if (w->id () == info->ipw)
+		/* The window we just grabbed was actually
+		 * an IPW, get the real window instead
+		 */
+		    useW = getRealWindow (w);
+	}
+
+	mRotateCursor = XCreateFontCursor (screen->dpy (), XC_fleur);
+
+	if (!screen->otherGrabExist ("freewins", 0))
+	    if (!mGrabIndex)
+		mGrabIndex = screen->pushGrab (mRotateCursor, "freewins");
+    }
+
+    if (useW)
+    {
+	if (optionGetShapeWindowTypes ().evaluate (useW))
+	{
+	    FREEWINS_WINDOW (useW);
+
+	    int x = CompOption::getIntOptionNamed (options, "x",
+					       useW->x () + (useW->width () / 2));
+	    int y = CompOption::getIntOptionNamed (options, "y",
+					       useW->y () + (useW->height () / 2));
+
+	    int mods = CompOption::getIntOptionNamed (options, "modifiers", 0);
+
+	    mGrabWindow = useW;
+
+	    /* Find out the corner we clicked in */
+
+	    float MidX = fww->mInputRect.centerX ();
+	    float MidY = fww->mInputRect.centerY ();
+
+	    /* Check for Y axis clicking (Top / Bottom) */
+	    if (pointerY > MidY)
+	    {
+		/* Check for X axis clicking (Left / Right) */
+		if (pointerX > MidX)
+		    fww->mCorner = CornerBottomRight;
+		else if (pointerX < MidX)
+		    fww->mCorner = CornerBottomLeft;
+	    }
+	    else if (pointerY < MidY)
+	    {
+		/* Check for X axis clicking (Left / Right) */
+		if (pointerX > MidX)
+		    fww->mCorner = CornerTopRight;
+		else if (pointerX < MidX)
+		    fww->mCorner = CornerTopLeft;
+	    }
+
+	    switch (optionGetScaleMode ())
+	    {
+		case ScaleModeToCentre:
+		    fww->calculateInputOrigin(WIN_REAL_X (useW) + WIN_REAL_W (useW) / 2.0f,
+					      WIN_REAL_Y (useW) + WIN_REAL_H (useW) / 2.0f);
+		    fww->calculateOutputOrigin(WIN_OUTPUT_X (useW) + WIN_OUTPUT_W (useW) / 2.0f,
+					       WIN_OUTPUT_Y (useW) + WIN_OUTPUT_H (useW) / 2.0f);
+		    break;
+		/*
+		 *Experimental scale to corners mode
+		 */
+		case ScaleModeToOppositeCorner:
+		    switch (fww->mCorner)
+		    {
+			case CornerBottomRight:
+			    /* Translate origin to the top left of the window */
+			    //FWMoveWindowToCorrectPosition (w, fww->inputRect.x1 - WIN_REAL_X (useW), fww->inputRect.y1 - WIN_REAL_Y (useW));
+			    fww->calculateInputOrigin (WIN_REAL_X (useW), WIN_REAL_Y (useW));
+			    break;
+
+			case CornerBottomLeft:
+			    /* Translate origin to the top right of the window */
+			    //FWMoveWindowToCorrectPosition (w, fww->inputRect.x2 - (WIN_REAL_X (useW) + WIN_REAL_W (useW)), fww->inputRect.y1 - WIN_REAL_Y (useW));
+			    fww->calculateInputOrigin (WIN_REAL_X (useW) + (WIN_REAL_W (useW)), WIN_REAL_Y (useW));
+			    break;
+
+			case CornerTopRight:
+			    /* Translate origin to the bottom left of the window */
+			    //FWMoveWindowToCorrectPosition (w, fww->inputRect.x1 - WIN_REAL_X (useW) , fww->inputRect.y1 - (WIN_REAL_Y (useW) + WIN_REAL_H (useW)));
+			    fww->calculateInputOrigin (WIN_REAL_X (useW), WIN_REAL_Y (useW) + (WIN_REAL_H (useW)));
+			    break;
+
+			case CornerTopLeft:
+			    /* Translate origin to the bottom right of the window */
+			    //FWMoveWindowToCorrectPosition (w, fww->inputRect.x1 -(WIN_REAL_X (useW) + WIN_REAL_W (useW)) , fww->inputRect.y1 - (WIN_REAL_Y (useW) + WIN_REAL_H (useW)));
+			    fww->calculateInputOrigin (WIN_REAL_X (useW) + (WIN_REAL_W (useW)), WIN_REAL_Y (useW) + (WIN_REAL_H (useW)));
+			    break;
+		    }
+		    break;
+	    }
+
+	    fww->mGrab = grabScale;
+
+	    /* Announce that we grabbed the window */
+	    useW->grabNotify (x, y, mods,  CompWindowGrabMoveMask |
+			      CompWindowGrabButtonMask);
+
+	    cScreen->damageScreen ();
+
+	    /* Shape the window beforehand and avoid a stale grab */
+	    if (fww->canShape ())
+		if (fww->handleWindowInputInfo ())
+		    fww->adjustIPW ();
+
+
+	    if (state & CompAction::StateInitButton)
+		action->setState (action->state () | CompAction::StateTermButton);
+	}
+    }
+
+    return TRUE;
+}
+
+bool
+FWScreen::terminateFWScale (CompAction         *action,
+			    CompAction::State  state,
+			    CompOption::Vector options)
+{
+    if (mGrabWindow && mGrabIndex)
+    {
+	FREEWINS_WINDOW (mGrabWindow);
+	if (fww->mGrab == grabScale)
+	{
+	    fww->window->ungrabNotify ();
+
+	    switch (optionGetScaleMode ())
+	    {
+		int distX, distY;
+
+		case ScaleModeToOppositeCorner:
+		    distX =  (fww->mOutputRect.x1 () + (fww->mOutputRect.width () / 2.0f) - (WIN_REAL_X (mGrabWindow) + WIN_REAL_W (mGrabWindow) / 2.0f));
+		    distY = (fww->mOutputRect.y1 () + (fww->mOutputRect.width () / 2.0f) - (WIN_REAL_Y (mGrabWindow) + WIN_REAL_H (mGrabWindow) / 2.0f));
+
+		    mGrabWindow->move (distX, distY, true);
+		    mGrabWindow->syncPosition ();
+
+		    fww->calculateInputOrigin (WIN_REAL_X (mGrabWindow) +
+					       WIN_REAL_W (mGrabWindow) / 2.0f,
+					       WIN_REAL_Y (mGrabWindow) +
+					       WIN_REAL_H (mGrabWindow) / 2.0f);
+		    fww->calculateOutputOrigin (WIN_OUTPUT_X (mGrabWindow) +
+						WIN_OUTPUT_W (mGrabWindow) / 2.0f,
+						WIN_OUTPUT_Y (mGrabWindow) +
+						WIN_OUTPUT_H (mGrabWindow) / 2.0f);
+
+		    break;
+
+		default:
+		    break;
+
+	    }
+
+	    screen->removeGrab (mGrabIndex, 0);
+	    mGrabIndex = 0;
+	    mGrabWindow = NULL;
+	    fww->mGrab = grabNone;
+	}
+    }
+
+    action->setState (action->state () & ~(CompAction::StateTermKey |
+					   CompAction::StateTermButton));
+
+    return FALSE;
+}
+
+/* Repetitive Stuff */
+
+void
+FWWindow::setPrepareRotation (float dx,
+			      float dy,
+			      float dz,
+			      float dsu,
+			      float dsd)
+{    
+    if (FWScreen::get (screen)->optionGetShapeWindowTypes ().evaluate (window))
+    {
+	calculateInputOrigin (WIN_REAL_X (window) +
+			      WIN_REAL_W (window) / 2.0f,
+			      WIN_REAL_Y (window) +
+			      WIN_REAL_H (window) / 2.0f);
+	calculateOutputOrigin (WIN_OUTPUT_X (window) +
+			       WIN_OUTPUT_W (window) / 2.0f,
+			       WIN_OUTPUT_Y (window) +
+			       WIN_OUTPUT_H (window) / 2.0f);
+
+	mTransform.unsnapAngX += dy;
+	mTransform.unsnapAngY -= dx;
+	mTransform.unsnapAngZ += dz;
+
+	mTransform.unsnapScaleX += dsu;
+	mTransform.unsnapScaleY += dsd;
+
+	mAnimate.oldAngX = mTransform.angX;
+	mAnimate.oldAngY = mTransform.angY;
+	mAnimate.oldAngZ = mTransform.angZ;
+
+	mAnimate.oldScaleX = mTransform.scaleX;
+	mAnimate.oldScaleY = mTransform.scaleY;
+
+	mAnimate.destAngX = mTransform.angX + dy;
+	mAnimate.destAngY = mTransform.angY - dx;
+	mAnimate.destAngZ = mTransform.angZ + dz;
+
+	mAnimate.destScaleX = mTransform.scaleX + dsu;
+	mAnimate.destScaleY = mTransform.scaleY + dsd;
+
+    }
+}
+
+#define ROTATE_INC freewinsGetRotateIncrementAmount (w->screen)
+#define NEG_ROTATE_INC freewinsGetRotateIncrementAmount (w->screen) *-1
+
+#define SCALE_INC freewinsGetScaleIncrementAmount (w->screen)
+#define NEG_SCALE_INC freewinsGetScaleIncrementAmount (w->screen) *-1
+
+bool
+FWScreen::rotate (CompAction         *action,
+		  CompAction::State  state,
+		  CompOption::Vector options, int dx, int dy, int dz)
+{
+    CompWindow *w = screen->findWindow (CompOption::getIntOptionNamed (options,
+								       "window",
+								       0));
+    foreach (FWWindowInputInfo *info, mTransformedWindows)
+    {
+	if (info->ipw == w->id ())
+	{
+	    w = getRealWindow (w);
+	}
+    }
+
+    FREEWINS_WINDOW (w);
+
+    fww->setPrepareRotation (dx, dy, dz, 0, 0);
+
+    if (fww->canShape ())
+	if (fww->handleWindowInputInfo ())
+	    fww->adjustIPW ();
+
+    return true;
+}
+
+bool
+FWScreen::scale (CompAction          *action,
+		 CompAction::State   state,
+		 CompOption::Vector  options,
+		 int		     scale)
+{
+    CompWindow *w = screen->findWindow (CompOption::getIntOptionNamed (options,
+								       "window",
+								       0));
+    foreach (FWWindowInputInfo *info, mTransformedWindows)
+    {
+	if (info->ipw == w->id ())
+	{
+	    w = getRealWindow (w);
+	}
+    }
+
+    FREEWINS_WINDOW (w);
+
+    fww->setPrepareRotation (0, 0, 0, scale, scale);
+    fww->cWindow->addDamage ();
+
+    if (fww->canShape ())
+	if (fww->handleWindowInputInfo ())
+	    fww->adjustIPW ();
+
+    if (!optionGetAllowNegative ())
+    {
+	float minScale = optionGetMinScale ();
+
+	if (fww->mAnimate.destScaleX < minScale)
+	    fww->mAnimate.destScaleX = minScale;
+
+	if (fww->mAnimate.destScaleY < minScale)
+	    fww->mAnimate.destScaleY = minScale;
+    }
+
+    return true;
+}
+
+/* Reset the Rotation and Scale to 0 and 1 */
+bool
+FWScreen::resetFWTransform (CompAction         *action,
+			    CompAction::State  state,
+			    CompOption::Vector options)
+{
+    CompWindow *w = screen->findWindow (CompOption::getIntOptionNamed (options,
+								       "window",
+								       0));
+    foreach (FWWindowInputInfo *info, mTransformedWindows)
+    {
+	if (info->ipw == w->id ())
+	{
+	    w = getRealWindow (w);
+	}
+    }
+
+    if (w)
+    {
+	FREEWINS_WINDOW (w);
+	fww->setPrepareRotation (fww->mTransform.angY,
+				 -fww->mTransform.angX,
+				 -fww->mTransform.angZ,
+				 (1 - fww->mTransform.scaleX),
+				 (1 - fww->mTransform.scaleY));
+	fww->cWindow->addDamage ();
+
+	fww->mTransformed = FALSE;
+
+	if (fww->canShape ())
+	    if (fww->handleWindowInputInfo ())
+		fww->adjustIPW ();
+
+	fww->mResetting = TRUE;
+    }
+
+    return TRUE;
+}
+
+/* Callable action to rotate a window to the angle provided
+ * x: Set angle to x degrees
+ * y: Set angle to y degrees
+ * z: Set angle to z degrees
+ * window: The window to apply the transformation to
+ */
+bool
+FWScreen::rotateAction (CompAction         *action,
+			CompAction::State  state,
+			CompOption::Vector options)
+{
+    CompWindow *w;
+
+    w = screen->findWindow (CompOption::getIntOptionNamed (options, "window", 0));
+
+    if (w)
+    {
+	FREEWINS_WINDOW (w);
+
+	float x = CompOption::getFloatOptionNamed(options, "x", 0.0f);
+	float y = CompOption::getFloatOptionNamed(options, "y", 0.0f);
+	float z = CompOption::getFloatOptionNamed(options, "z", 0.0f);
+
+	fww->setPrepareRotation (x - fww->mAnimate.destAngX,
+				 y - fww->mAnimate.destAngY,
+				 z - fww->mAnimate.destAngZ, 0, 0);
+	fww->cWindow->addDamage ();
+
+    }
+    else
+    {
+	return false;
+    }
+
+    return true;
+}
+
+/* Callable action to increment window rotation by the angles provided
+ * x: Increment angle by x degrees
+ * y: Increment angle by y degrees
+ * z: Increment angle by z degrees
+ * window: The window to apply the transformation to
+ */
+bool
+FWScreen::incrementRotateAction (CompAction         *action,
+				 CompAction::State  state,
+				 CompOption::Vector options)
+{
+    CompWindow *w;
+
+    w = screen->findWindow (CompOption::getIntOptionNamed (options, "window", 0));
+
+    if (w)
+    {
+	FREEWINS_WINDOW (w);
+
+	float x = CompOption::getFloatOptionNamed(options, "x", 0.0f);
+	float y = CompOption::getFloatOptionNamed(options, "y", 0.0f);
+	float z = CompOption::getFloatOptionNamed(options, "z", 0.0f);
+
+	fww->setPrepareRotation (x,
+				 y,
+				 z, 0, 0);
+	fww->cWindow->addDamage ();
+
+    }
+    else
+    {
+	return false;
+    }
+
+    return true;
+}
+
+/* Callable action to scale a window to the scale provided
+ * x: Set scale to x factor
+ * y: Set scale to y factor
+ * window: The window to apply the transformation to
+ */
+bool
+FWScreen::scaleAction (CompAction         *action,
+		       CompAction::State  state,
+		       CompOption::Vector options)
+{
+    CompWindow *w;
+
+    w = screen->findWindow (CompOption::getIntOptionNamed (options, "window", 0));
+
+    if (w)
+    {
+	FREEWINS_WINDOW (w);
+
+	float x = CompOption::getFloatOptionNamed (options, "x", 0.0f);
+	float y = CompOption::getFloatOptionNamed (options, "y", 0.0f);
+
+	fww->setPrepareRotation (0, 0, 0,
+				 x - fww->mAnimate.destScaleX,
+				 y - fww->mAnimate.destScaleY);
+	if (fww->canShape ())
+	    if (fww->handleWindowInputInfo ())
+		fww->adjustIPW ();
+
+	/* Stop scale at threshold specified */
+	if (!optionGetAllowNegative ())
+	{
+	    float minScale = optionGetMinScale ();
+	    if (fww->mAnimate.destScaleX < minScale)
+		fww->mAnimate.destScaleX = minScale;
+
+	    if (fww->mAnimate.destScaleY < minScale)
+		fww->mAnimate.destScaleY = minScale;
+	}
+
+	fww->cWindow->addDamage ();
+
+	if (fww->canShape ())
+	    fww->handleWindowInputInfo ();
+
+    }
+    else
+    {
+	return false;
+    }
+
+    return true;
+}
+
+/* Toggle Axis-Help Display */
+bool
+FWScreen::toggleFWAxis (CompAction         *action,
+			CompAction::State  state,
+			CompOption::Vector options)
+{
+    mAxisHelp = !mAxisHelp;
+
+    cScreen->damageScreen ();
+
+    return TRUE;
+}

=== added file 'plugins/freewins/src/events.cpp'
--- plugins/freewins/src/events.cpp	1970-01-01 00:00:00 +0000
+++ plugins/freewins/src/events.cpp	2013-02-28 06:12:23 +0000
@@ -0,0 +1,854 @@
+/**
+ * Compiz Fusion Freewins plugin
+ *
+ * events.cpp
+ *
+ * Copyright (C) 2007  Rodolfo Granata <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author(s):
+ * Rodolfo Granata <[e-mail]>
+ * Sam Spilsbury <[e-mail]>
+ *
+ * Button binding support and Reset added by:
+ * enigma_0Z <[e-mail]>
+ *
+ * Most of the input handling here is based on
+ * the shelf plugin by
+ *        : Kristian Lyngstøl <[e-mail]>
+ *        : Danny Baumann <[e-mail]>
+ *
+ * Description:
+ *
+ * This plugin allows you to freely transform the texture of a window,
+ * whether that be rotation or scaling to make better use of screen space
+ * or just as a toy.
+ *
+ * Todo:
+ *  - Fully implement an input redirection system by
+ *    finding an inverse matrix, multiplying by it,
+ *    translating to the actual window co-ords and
+ *    XSendEvent() the co-ords to the actual window.
+ * -  X Input Redirection
+ *  - Code could be cleaner
+ *  - Add timestep and speed options to animation
+ *  - Add window hover-over info via paintOutput : i.e
+ *    - Resize borders
+ *    - 'Reset' Button
+ *    - 'Scale' Button
+ *    - 'Rotate' Button
+ */
+
+#include "freewins.h"
+
+
+/* ------ Event Handlers ------------------------------------------------*/
+
+void
+FWWindow::handleIPWResizeInitiate ()
+{
+    FREEWINS_SCREEN (screen);
+
+    window->activate ();
+    mGrab = grabResize;
+    fws->mRotateCursor = XCreateFontCursor (screen->dpy (), XC_plus);
+    if(!screen->otherGrabExist ("freewins", "resize", 0))
+	if(!fws->mGrabIndex)
+	{
+	    unsigned int mods = 0;
+	    mods &= CompNoMask;
+	    fws->mGrabIndex = screen->pushGrab (fws->mRotateCursor, "resize");
+	    window->grabNotify (window->x () + (window->width () / 2),
+				window->y () + (window->height () / 2), mods,
+				CompWindowGrabMoveMask | CompWindowGrabButtonMask);
+	    fws->mGrabWindow = window;
+	}
+}
+
+void
+FWWindow::handleIPWMoveInitiate ()
+{
+    FREEWINS_SCREEN (screen);
+
+    window->activate ();
+    mGrab = grabMove;
+    fws->mRotateCursor = XCreateFontCursor (screen->dpy (), XC_fleur);
+    if(!screen->otherGrabExist ("freewins", "resize", 0))
+	if(!fws->mGrabIndex)
+	{
+	    unsigned int mods = 0;
+	    mods &= CompNoMask;
+	    fws->mGrabIndex = screen->pushGrab (fws->mRotateCursor, "resize");
+	    window->grabNotify (window->x () + (window->width () / 2),
+				window->y () + (window->height () / 2), mods,
+				CompWindowGrabResizeMask | CompWindowGrabButtonMask);
+	    fws->mGrabWindow = window;
+	}
+}
+
+void
+FWWindow::handleIPWMoveMotionEvent (unsigned int x,
+				    unsigned int y)
+{
+    FREEWINS_SCREEN (screen);
+
+    int dx = x - lastPointerX;
+    int dy = y - lastPointerY;
+
+    if (!fws->mGrabIndex)
+	return;
+
+    window->move (dx, dy, fws->optionGetImmediateMoves ());
+    window->syncPosition ();
+
+}
+
+void
+FWWindow::handleIPWResizeMotionEvent (unsigned int x,
+				      unsigned int y)
+{
+    int dx = (x - lastPointerX) * 10;
+    int dy = (y - lastPointerY) * 10;
+
+    mWinH += dy;
+    mWinW += dx;
+
+    /* In order to prevent a window redraw on resize
+     * on every motion event we have a threshold
+     */
+
+    /* FIXME: cf-love: Instead of actually resizing the window, scale it up, then resize it */
+
+    if (mWinH - 10 > window->height () || mWinW - 10 > window->width ())
+    {
+	XWindowChanges xwc;
+	unsigned int   mask = CWX | CWY | CWWidth | CWHeight;
+
+	xwc.x = window->serverX ();
+	xwc.y = window->serverY ();
+	xwc.width = mWinW;
+	xwc.height = mWinH;
+
+	if (xwc.width == window->serverWidth ())
+	    mask &= ~CWWidth;
+
+	if (xwc.height == window->serverHeight ())
+	    mask &= ~CWHeight;
+
+	if (window->mapNum () && (mask & (CWWidth | CWHeight)))
+	    window->sendSyncRequest ();
+
+	window->configureXWindow (mask, &xwc);
+    }
+}
+
+/* Handle Rotation */
+void
+FWWindow::handleRotateMotionEvent (float dx,
+				   float dy,
+				   int x,
+				   int y)
+{
+    FREEWINS_SCREEN (screen);
+
+    x -= 100;
+    y -= 100;
+
+    int oldX = lastPointerX - 100;
+    int oldY = lastPointerY - 100;
+
+    float midX = WIN_REAL_X (window) + WIN_REAL_W (window)/2.0;
+    float midY = WIN_REAL_Y (window) + WIN_REAL_H (window)/2.0;
+
+    float angX;
+    float angY;
+    float angZ;
+
+    /* Save the current angles so we can work with them */
+    if (fws->optionGetSnap () || fws->mSnap)
+    {
+	angX = mTransform.unsnapAngX;
+	angY = mTransform.unsnapAngY;
+	angZ = mTransform.unsnapAngZ;
+    }
+    else
+    {
+	angX = mAnimate.destAngX;
+	angY = mAnimate.destAngY;
+	angZ = mAnimate.destAngZ;
+    }
+
+    /* Check for Y axis clicking (Top / Bottom) */
+    if (pointerY > midY)
+    {
+	/* Check for X axis clicking (Left / Right) */
+	if (pointerX > midX)
+	    mCorner = CornerBottomRight;
+	else if (pointerX < midX)
+	    mCorner = CornerBottomLeft;
+    }
+    else if (pointerY < midY)
+    {
+	/* Check for X axis clicking (Left / Right) */
+	if (pointerX > midX)
+	    mCorner = CornerTopRight;
+	else if (pointerX < midX)
+	    mCorner = CornerTopLeft;
+    }
+
+    float percentFromXAxis = 0.0, percentFromYAxis = 0.0;
+
+    if (fws->optionGetZAxisRotation () == FreewinsOptions::ZAxisRotationInterchangeable)
+    {
+
+	/* Trackball rotation was too hard to implement. If anyone can implement it,
+	 * please come forward so I can replace this hacky solution to the problem.
+	 * Anyways, what happens here, is that we determine how far away we are from
+	 * each axis (y and x). The further we are away from the y axis, the more
+	 * up / down movements become Z axis movements and the further we are away from
+	 * the x-axis, the more left / right movements become z rotations. */
+
+	/* We determine this by taking a percentage of how far away the cursor is from
+	 * each axis. We divide the 3D rotation by this percentage ( and divide by the
+	 * percentage squared in order to ensure that rotation is not too violent when we
+	 * are quite close to the origin. We multiply the 2D rotation by this percentage also
+	 * so we are essentially rotating in 3D and 2D all the time, but this is only really
+	 * noticeable when you move the cursor over to the extremes of a window. In every case
+	 * percentage can be defined as decimal-percentage (i.e 0.036 == 3.6%). Like I mentioned
+	 * earlier, if you can replace this with trackball rotation, please come forward! */
+
+	float halfWidth = WIN_REAL_W (window) / 2.0f;
+	float halfHeight = WIN_REAL_H (window) / 2.0f;
+
+	float distFromXAxis = fabs (mIMidX - pointerX);
+	float distFromYAxis = fabs (mIMidY - pointerY);
+
+	percentFromXAxis = distFromXAxis / halfWidth;
+	percentFromYAxis = distFromYAxis / halfHeight;
+
+    }
+    else if (fws->optionGetZAxisRotation () == FreewinsOptions::ZAxisRotationSwitch)
+	determineZAxisClick (pointerX, pointerY, TRUE);
+
+    dx *= 360;
+    dy *= 360;
+
+    /* Handle inversion */
+
+    bool can2D = mCan2D, can3D = mCan3D;
+
+    if (fws->mInvert && fws->optionGetZAxisRotation () != FreewinsOptions::ZAxisRotationInterchangeable)
+    {
+	can2D = !mCan2D;
+	can3D = !mCan3D;
+    }
+
+    if(can2D)
+    {
+
+	float zX = 1.0f;
+	float zY = 1.0f;
+
+	if (fws->optionGetZAxisRotation () == FreewinsOptions::ZAxisRotationInterchangeable)
+	{
+	    zX = percentFromXAxis;
+	    zY = percentFromYAxis;
+	}
+
+	zX = zX > 1.0f ? 1.0f : zX;
+	zY = zY > 1.0f ? 1.0f : zY;
+
+	switch (mCorner)
+	{
+	    case CornerTopRight:
+
+		if (x < oldX)
+		    angZ -= dx * zX;
+		else if (x > oldX)
+		    angZ += dx * zX;
+
+		if (y < oldY)
+		    angZ -= dy * zY;
+		else if (y > oldY)
+		    angZ += dy * zY;
+
+		break;
+
+	    case CornerTopLeft:
+
+		if (x < oldX)
+		    angZ -= dx * zX;
+		else if (x > oldX)
+		    angZ += dx * zX;
+
+		if (y < oldY)
+		    angZ += dy * zY;
+		else if (y > oldY)
+		    angZ -= dy * zY;
+
+		break;
+
+	    case CornerBottomLeft:
+
+		if (x < oldX)
+		    angZ += dx * zX;
+		else if (x > oldX)
+		    angZ -= dx * zX;
+
+		if (y < oldY)
+		    angZ += dy * zY;
+		else if (y > oldY)
+		    angZ -= dy * zY;
+
+		break;
+
+	    case CornerBottomRight:
+
+		if (x < oldX)
+		    angZ += dx * zX;
+		else if (x > oldX)
+		    angZ -= dx * zX;
+
+		if (y < oldY)
+		    angZ -= dy * zY;
+		else if (y > oldY)
+		    angZ += dy * zY;
+
+		break;
+	}
+    }
+
+    if (can3D)
+    {
+	if (fws->optionGetZAxisRotation () != FreewinsOptions::ZAxisRotationInterchangeable)
+	{
+	    percentFromXAxis = 0.0f;
+	    percentFromYAxis = 0.0f;
+	}
+
+	angX -= dy * (1 - percentFromXAxis);
+	angY += dx * (1 - percentFromYAxis);
+    }
+
+    /* Restore angles */
+
+    if (fws->optionGetSnap () || fws->mSnap)
+    {
+	mTransform.unsnapAngX = angX;
+	mTransform.unsnapAngY = angY;
+	mTransform.unsnapAngZ = angZ;
+    }
+    else
+    {
+	mAnimate.destAngX = angX;
+	mAnimate.destAngY = angY;
+	mAnimate.destAngZ = angZ;
+    }
+
+    handleSnap ();
+}
+
+/* Handle Scaling */
+void
+FWWindow::handleScaleMotionEvent (float dx,
+				  float dy,
+				  int x,
+				  int y)
+{
+    FREEWINS_SCREEN (screen);
+
+    x -= 100.0;
+    y -= 100.0;
+    
+    int oldX = lastPointerX - 100;
+    int oldY = lastPointerY - 100;
+    
+    float scaleX, scaleY;
+    
+    if (fws->optionGetSnap () || fws->mSnap)
+    {
+	scaleX = mTransform.unsnapScaleX;
+	scaleY = mTransform.unsnapScaleY;
+    }
+    else
+    {
+	scaleX = mAnimate.destScaleX;
+	scaleY = mAnimate.destScaleY;
+    }
+
+    calculateInputRect ();
+
+    switch (mCorner)
+    {
+	case CornerTopLeft:
+
+	    // Check X Direction
+	    if (x < oldX)
+		scaleX -= dx;
+	    else if (x > oldX)
+		scaleX -= dx;
+
+	    // Check Y Direction
+	    if (y < oldY)
+		scaleY -= dy;
+	    else if (y > oldY)
+		scaleY -= dy;
+
+	    break;
+
+	case CornerTopRight:
+
+	    // Check X Direction
+	    if (x < oldX)
+		scaleX += dx;
+	    else if (x > oldX)
+		scaleX += dx;
+
+	    // Check Y Direction
+	    if (y < oldY)
+		scaleY -= dy;
+	    else if (y > oldY)
+		scaleY -= dy;
+
+	    break;
+
+	case CornerBottomLeft:
+
+	    // Check X Direction
+	    if (x < oldX)
+		scaleX -= dx;
+	    else if (y > oldX)
+		scaleX -= dx;
+
+	    // Check Y Direction
+	    if (y < oldY)
+		scaleY += dy;
+	    else if (y > oldY)
+		scaleY += dy;
+
+	    break;
+
+	case CornerBottomRight:
+
+	    // Check X Direction
+	    if (x < oldX)
+		scaleX += dx;
+	    else if (x > oldX)
+		scaleX += dx;
+
+	    // Check Y Direction
+	    if (y < oldY)
+		scaleY += dy;
+	    else if (y > oldY)
+		scaleY += dy;
+
+	    break;
+    }
+    
+    if (fws->optionGetSnap () || fws->mSnap)
+    {
+	mTransform.unsnapScaleX = scaleX;
+	mTransform.unsnapScaleY = scaleY;
+    }
+    else
+    {
+	mAnimate.destScaleX = scaleX;
+	mAnimate.destScaleY = scaleY;
+    }
+
+    /* Stop scale at threshold specified */
+    if (!fws->optionGetAllowNegative ())
+    {
+	float minScale = fws->optionGetMinScale ();
+	if (mAnimate.destScaleX < minScale)
+	    mAnimate.destScaleX = minScale;
+
+	if (mAnimate.destScaleY < minScale)
+	    mAnimate.destScaleY = minScale;
+    }
+
+    /* Change scales for maintaining aspect ratio */
+    if (fws->optionGetScaleUniform ())
+    {
+	float tempscaleX = mAnimate.destScaleX;
+	float tempscaleY = mAnimate.destScaleY;
+	mAnimate.destScaleX = (tempscaleX + tempscaleY) / 2;
+	mAnimate.destScaleY = (tempscaleX + tempscaleY) / 2;
+	mTransform.unsnapScaleX = (tempscaleX + tempscaleY) / 2;
+	mTransform.unsnapScaleY = (tempscaleX + tempscaleY) / 2;
+    }
+
+    handleSnap ();
+}
+
+void
+FWWindow::handleButtonReleaseEvent ()
+{
+    FREEWINS_SCREEN (screen);
+
+    if (mGrab == grabMove || mGrab == grabResize)
+    {
+	screen->removeGrab (fws->mGrabIndex, NULL);
+	window->ungrabNotify ();
+	window->moveInputFocusTo ();
+	adjustIPW ();
+	fws->mGrabIndex = 0;
+	fws->mGrabWindow = NULL;
+	mGrab = grabNone;
+    }
+}
+
+void
+FWWindow::handleEnterNotify (XEvent *xev)
+{
+    XEvent EnterNotifyEvent;
+
+    memcpy (&EnterNotifyEvent.xcrossing, &xev->xcrossing,
+	    sizeof (XCrossingEvent));
+/*
+    if (window)
+    {
+	EnterNotifyEvent.xcrossing.window = window->id ();
+	XSendEvent (screen->dpy (), window->id (),
+		    FALSE, EnterWindowMask, &EnterNotifyEvent);
+    }
+*/
+}
+
+void
+FWWindow::handleLeaveNotify (XEvent *xev)
+{
+    XEvent LeaveNotifyEvent;
+
+    memcpy (&LeaveNotifyEvent.xcrossing, &xev->xcrossing,
+	    sizeof (XCrossingEvent));
+    LeaveNotifyEvent.xcrossing.window = window->id ();
+
+    //XSendEvent (screen->dpy (), window->id (), FALSE,
+    //            LeaveWindowMask, &LeaveNotifyEvent);
+}
+
+/* X Event Handler */
+void
+FWScreen::handleEvent (XEvent *ev)
+{
+    float dx, dy;
+    CompWindow *oldPrev, *oldNext, *w;
+
+    /* Check our modifiers first */
+
+    if (ev->type == screen->xkbEvent ())
+    {
+	XkbAnyEvent *xkbEvent = (XkbAnyEvent *) ev;
+
+	if (xkbEvent->xkb_type == XkbStateNotify)
+	{
+	    XkbStateNotifyEvent *stateEvent = (XkbStateNotifyEvent *) ev;
+	    unsigned int snapMods = 0xffffffff;
+	    unsigned int invertMods = 0xffffffff;
+
+	    if (mSnapMask)
+		snapMods = mSnapMask;
+
+	    if ((stateEvent->mods & snapMods) == snapMods)
+		mSnap = TRUE;
+	    else
+		mSnap = FALSE;
+
+	    if (mInvertMask)
+		invertMods = mInvertMask;
+
+	    if ((stateEvent->mods & invertMods) == invertMods)
+		mInvert = TRUE;
+	    else
+		mInvert = FALSE;
+
+	}
+    }
+
+    switch(ev->type)
+    {
+	case EnterNotify:
+	{
+	    CompWindow *btnW;
+	    btnW = screen->findWindow (ev->xbutton.subwindow);
+
+	    /* It wasn't the subwindow, try the window */
+	    if (!btnW)
+		btnW = screen->findWindow (ev->xbutton.window);
+
+	    /* We have established the CompWindow we clicked
+	     * on. Get the real window */
+	    if (btnW)
+	    {
+		FREEWINS_WINDOW (btnW);
+		if (fww->canShape () && !mGrabWindow && !screen->otherGrabExist (0))
+		    mHoverWindow = btnW;
+		btnW = getRealWindow (btnW);
+	    }
+	    
+	    if (btnW)
+	    {
+		FREEWINS_WINDOW (btnW);
+		if (fww->canShape () && !mGrabWindow && !screen->otherGrabExist (0))
+		    mHoverWindow = btnW;
+		fww->handleEnterNotify (ev);
+	    }
+	}
+	    break;
+
+	case LeaveNotify:
+	{
+	    CompWindow *btnW;
+	    btnW = screen->findWindow (ev->xbutton.subwindow);
+
+	    /* It wasn't the subwindow, try the window */
+	    if (!btnW)
+		btnW = screen->findWindow (ev->xbutton.window);
+
+	    /* We have established the CompWindow we clicked
+	     * on. Get the real window */
+	    if (btnW)
+		btnW = getRealWindow (btnW);
+
+	    if (btnW)
+		FWWindow::get (btnW)->handleLeaveNotify (ev);
+	}
+	    break;
+
+	case MotionNotify:
+	{
+	    if (mGrabWindow)
+	    {
+		FREEWINS_WINDOW (mGrabWindow);
+
+		dx = ((float)(pointerX - lastPointerX) / screen->width ()) * \
+		     optionGetMouseSensitivity ();
+		dy = ((float)(pointerY - lastPointerY) / screen->height ()) * \
+		     optionGetMouseSensitivity ();
+
+		if (optionGetShapeWindowTypes ().evaluate (mGrabWindow))
+		{
+		    if (fww->mGrab == grabMove || fww->mGrab == grabResize)
+		    {
+			FWWindowInputInfo *info;
+//			CompWindow *w = mGrabWindow;
+			foreach (info, mTransformedWindows)
+			{
+			    if (mGrabWindow->id () == info->ipw)
+				/* The window we just grabbed was actually
+				 * an IPW, get the real window instead
+				 */
+				w = getRealWindow (mGrabWindow);
+			}
+		    }
+		    switch (fww->mGrab)
+		    {
+			case grabMove:
+			    fww->handleIPWMoveMotionEvent (pointerX, pointerY); break;
+			case grabResize:
+			    fww->handleIPWResizeMotionEvent (pointerX, pointerY); break;
+			default:
+			    break;
+		    }
+		}
+
+		if (fww->mGrab == grabRotate)
+		{
+		    fww->handleRotateMotionEvent(dx, dy, ev->xmotion.x, ev->xmotion.y);
+		}
+
+		if (fww->mGrab == grabScale)
+		{
+		    fww->handleScaleMotionEvent(dx * 3, dy * 3, ev->xmotion.x, ev->xmotion.y);
+		}
+
+		//if(dx != 0.0 || dy != 0.0)
+		//    fww->damageArea ();
+	    }
+	}
+	    break;
+
+	/* Button Press and Release */
+	case ButtonPress:
+	{
+	    CompWindow *btnW;
+	    btnW = screen->findWindow (ev->xbutton.subwindow);
+
+	    /* It wasn't the subwindow, try the window */
+	    if (!btnW)
+		btnW = screen->findWindow (ev->xbutton.window);
+
+	    /* We have established the CompWindow we clicked
+	     * on. Get the real window
+	     * FIXME: Free btnW and use another CompWindow * such as realW
+	     */
+	    if (btnW)
+		btnW = getRealWindow (btnW);
+
+	    if (btnW)
+	    {
+		FREEWINS_WINDOW (btnW);
+
+		if (optionGetShapeWindowTypes ().evaluate (btnW))
+		    switch (ev->xbutton.button)
+		    {
+			case Button1:
+			    fww->handleIPWMoveInitiate ();
+			    break;
+
+			case Button3:
+			    fww->handleIPWResizeInitiate ();
+			    break;
+
+			default:
+			    break;
+		    }
+	    }
+
+	    mClick_root_x = ev->xbutton.x_root;
+	    mClick_root_y = ev->xbutton.y_root;
+	}
+	    break;
+
+	case ButtonRelease:
+	{
+	    if (mGrabWindow)
+	    {
+		FREEWINS_WINDOW (mGrabWindow);
+
+		if (optionGetShapeWindowTypes ().evaluate (mGrabWindow))
+		    if (fww->mGrab == grabMove || fww->mGrab == grabResize)
+		    {
+			fww->handleButtonReleaseEvent ();
+			mGrabWindow = 0;
+		    }
+	    }
+	}
+	    break;
+
+	case ConfigureNotify:
+	{
+	    w = screen->findWindow (ev->xconfigure.window);
+	    if (w)
+	    {
+		oldPrev = w->prev;
+		oldNext = w->next;
+
+		FREEWINS_WINDOW (w);
+
+		fww->mWinH = WIN_REAL_H (w);
+		fww->mWinW = WIN_REAL_W (w);
+	    }
+	}
+	    break;
+
+#if 0
+	case ClientMessage:
+	{
+	    if (ev->xclient.message_type == Atoms::desktopViewport)
+	    {
+		/* Viewport change occurred, or something like that - adjust the IPW's */
+		CompWindow *adjW, *actualW;
+
+		foreach (adjW, screen->windows ())
+		{
+		    int vX = 0, vY = 0, dX, dY;
+
+		    actualW = getRealWindow (adjW);
+
+		    if (!actualW)
+			actualW = adjW;
+
+		    if (actualW)
+		    {
+			CompWindow *ipw;
+
+			FREEWINS_WINDOW (actualW);
+
+			if (!fww->mInput || fww->mInput->ipw)
+			    break;
+
+			ipw = screen->findWindow (fww->mInput->ipw);
+
+			if (ipw)
+			{
+			    dX = screen->vp ().x () - vX;
+			    dY = screen->vp ().y () - vY;
+
+			    CompPoint p = actualW->defaultViewport ();
+
+			    vX = p.x ();
+			    vY = p.y ();
+
+			    ipw->moveToViewportPosition (ipw->x () - dX * screen->width (),
+							 ipw->y () - dY * screen->height (),
+							 true); // ???
+			}
+		    }
+		}
+	    }
+	}
+	    break;
+#endif
+	default:
+	    break;
+#if 0
+	    if (ev->type == screen->shapeEvent () + ShapeNotify)
+	    {
+		XShapeEvent *se = (XShapeEvent *) ev;
+		if (se->kind == ShapeInput)
+		{
+		    CompWindow *w;
+		    w = screen->findWindow (se->window);
+		    if (w)
+		    {
+			FREEWINS_WINDOW (w);
+
+			if (fww->canShape () && (fww->mTransform.scaleX != 1.0f || fww->mTransform.scaleY != 1.0f))
+			{
+			    // Reset the window back to normal
+			    fww->mTransform.scaleX = 1.0f;
+			    fww->mTransform.scaleY = 1.0f;
+			    fww->mTransform.angX = 0.0f;
+			    fww->mTransform.angY = 0.0f;
+			    fww->mTransform.angZ = 0.0f;
+			    /*FWShapeInput (w); - Disabled due to problems it causes*/
+			}
+		    }
+		}
+	    }
+#endif
+    }
+    
+    screen->handleEvent (ev);
+
+    /* Now we can find out if a restacking occurred while we were handing events */
+    switch (ev->type)
+    {
+	case ConfigureNotify:
+	{
+	    w = screen->findWindow (ev->xconfigure.window);
+	    if (w)
+	    {
+		oldPrev = w->prev;
+		oldNext = w->next;
+		if (w->prev != oldPrev || w->next != oldNext)
+		{
+		    /* restacking occured, ensure ipw stacking */
+		    adjustIPWStacking ();
+		}
+	    }
+	}
+	    break;
+    }
+}

=== added file 'plugins/freewins/src/freewins.cpp'
--- plugins/freewins/src/freewins.cpp	1970-01-01 00:00:00 +0000
+++ plugins/freewins/src/freewins.cpp	2013-02-28 06:12:23 +0000
@@ -0,0 +1,271 @@
+/**
+ * Compiz Fusion Freewins plugin
+ *
+ * freewins.cpp
+ *
+ * Copyright (C) 2007  Rodolfo Granata <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author(s):
+ * Rodolfo Granata <[e-mail]>
+ * Sam Spilsbury <[e-mail]>
+ *
+ * Button binding support and Reset added by:
+ * enigma_0Z <[e-mail]>
+ *
+ * Most of the input handling here is based on
+ * the shelf plugin by
+ *        : Kristian Lyngstøl <[e-mail]>
+ *        : Danny Baumann <[e-mail]>
+ *
+ * Description:
+ *
+ * This plugin allows you to freely transform the texture of a window,
+ * whether that be rotation or scaling to make better use of screen space
+ * or just as a toy.
+ *
+ * Todo:
+ *  - Modifier key to rotate on the Z Axis
+ *  - Fully implement an input redirection system by
+ *    finding an inverse matrix, multiplying by it,
+ *    translating to the actual window co-ords and
+ *    XSendEvent() the co-ords to the actual window.
+ *  - Code could be cleaner
+ *  - Add timestep and speed options to animation
+ *  - Add window hover-over info via paintOutput : i.e
+ *    - Resize borders
+ *    - 'Reset' Button
+ *    - 'Scale' Button
+ *    - 'Rotate' Button
+ */
+
+#include "freewins.h"
+
+COMPIZ_PLUGIN_20090315 (freewins, FWPluginVTable);
+
+/* Information on window resize */
+void
+FWWindow::resizeNotify (int dx,
+			int dy,
+			int dw,
+			int dh)
+{
+    calculateInputRect ();
+
+    int x = WIN_REAL_X(window) + WIN_REAL_W(window)/2.0;
+    int y = WIN_REAL_Y(window) + WIN_REAL_H(window)/2.0;
+
+    mRadius = sqrt(pow((x - WIN_REAL_X (window)), 2) + pow((y - WIN_REAL_Y (window)), 2));
+
+    window->resizeNotify (dx, dy, dw, dh);
+}
+
+void
+FWWindow::moveNotify (int dx,
+		      int dy,
+		      bool immediate)
+{
+    FREEWINS_SCREEN (screen);
+
+    /* Did we move and IPW and not the actual window? */
+    CompWindow *useWindow = fws->getRealWindow (window);
+
+    if (useWindow)
+	useWindow->move (dx, dy, fws->optionGetImmediateMoves ());
+    else if (window != fws->mGrabWindow)
+	adjustIPW ();
+
+    if (!useWindow)
+	useWindow = window;
+
+    int x = WIN_REAL_X (useWindow) + WIN_REAL_W (useWindow) /2.0;
+    int y = WIN_REAL_Y (useWindow) + WIN_REAL_H (useWindow) /2.0;
+
+
+    mRadius = sqrt (pow((x - WIN_REAL_X (useWindow)), 2) + pow ((y - WIN_REAL_Y (useWindow)), 2));
+
+    useWindow->moveNotify (dx, dy, immediate);
+}
+
+void
+FWScreen::reloadSnapKeys ()
+{
+    unsigned int imask = optionGetInvertModsMask ();
+    mInvertMask = 0;
+
+    if (imask & InvertModsShiftMask)
+	mInvertMask |= ShiftMask;
+    if (imask & InvertModsAltMask)
+	mInvertMask |= CompAltMask;
+    if (imask & InvertModsControlMask)
+	mInvertMask |= ControlMask;
+    if (imask & InvertModsMetaMask)
+	mInvertMask |= CompMetaMask;
+
+    unsigned int smask = optionGetSnapModsMask ();
+    mSnapMask = 0;
+    if (smask & SnapModsShiftMask)
+	mSnapMask |= ShiftMask;
+    if (smask & SnapModsAltMask)
+	mSnapMask |= CompAltMask;
+    if (smask & SnapModsControlMask)
+	mSnapMask |= ControlMask;
+    if (smask & SnapModsMetaMask)
+	mSnapMask |= CompMetaMask;
+}
+
+void
+FWScreen::optionChanged (CompOption *option,
+			 FreewinsOptions::Options num)
+{
+    switch (num)
+    {
+	case FreewinsOptions::SnapMods:
+	case FreewinsOptions::InvertMods:
+	    reloadSnapKeys ();
+	    break;
+	default:
+	    break;
+    }
+}
+
+/* ------ Plugin Initialisation ---------------------------------------*/
+
+/* Window initialisation / cleaning */
+
+FWWindow::FWWindow (CompWindow *w) :
+    PluginClassHandler <FWWindow, CompWindow> (w),
+    window (w),
+    cWindow (CompositeWindow::get (w)),
+    gWindow (GLWindow::get (w)),
+    mIMidX (WIN_REAL_W (w) / 2.0),
+    mIMidY (WIN_REAL_H (w) / 2.0),
+    mOMidX (0.0f),
+    mOMidY (0.0f),
+    mAdjustX (0.0f),
+    mAdjustY (0.0f),
+    mOldWinX (0),
+    mOldWinY (0),
+    mWinH (0),
+    mWinW (0),
+    mDirection (UpDown),
+    mCorner (CornerTopLeft),
+    mInput (NULL),
+    mOutputRect (w->outputRect ()),
+    mInputRect (w->borderRect ()),
+    mResetting (false),
+    mIsAnimating (false),
+    mCan2D (false),
+    mCan3D (false),
+    mTransformed (false),
+    mGrab (grabNone)
+{
+    WindowInterface::setHandler (window);
+    CompositeWindowInterface::setHandler (cWindow);
+    GLWindowInterface::setHandler (gWindow);
+
+    int x = WIN_REAL_X (w) + WIN_REAL_W (w) /2.0;
+    int y = WIN_REAL_Y (w) + WIN_REAL_H (w) /2.0;
+
+    mRadius = sqrt (pow ((x - WIN_REAL_X (w)), 2) + pow ((y - WIN_REAL_Y (w)), 2));
+}
+
+FWWindow::~FWWindow ()
+{
+    if (canShape ())
+	handleWindowInputInfo ();
+
+    FREEWINS_SCREEN (screen);
+
+    if (fws->mGrabWindow == window)
+	fws->mGrabWindow = NULL;
+}
+
+#define ROTATE_INC optionGetRotateIncrementAmount ()
+#define NEG_ROTATE_INC optionGetRotateIncrementAmount () *-1
+
+#define SCALE_INC optionGetScaleIncrementAmount ()
+#define NEG_SCALE_INC optionGetScaleIncrementAmount () *-1
+
+FWScreen::FWScreen (CompScreen *screen) :
+    PluginClassHandler <FWScreen, CompScreen> (screen),
+    cScreen (CompositeScreen::get (screen)),
+    gScreen (GLScreen::get (screen)),
+    mClick_root_x (0),
+    mClick_root_y (0),
+    mGrabWindow (NULL),
+    mHoverWindow (NULL),
+    mLastGrabWindow (NULL),
+    mAxisHelp (false),
+    mSnap (false),
+    mInvert (false),
+    mSnapMask (0),
+    mInvertMask (0),
+    mGrabIndex (0)
+{
+    ScreenInterface::setHandler (screen);
+    CompositeScreenInterface::setHandler (cScreen);
+    GLScreenInterface::setHandler (gScreen);
+
+    /* TODO: warning about shape! */
+
+    /* BCOP Action initiation */
+    optionSetInitiateRotationButtonInitiate (boost::bind (&FWScreen::initiateFWRotate, this, _1, _2, _3));
+    optionSetInitiateRotationButtonTerminate (boost::bind (&FWScreen::terminateFWRotate, this, _1, _2, _3));
+    optionSetInitiateScaleButtonInitiate (boost::bind (&FWScreen::initiateFWScale, this, _1, _2, _3));
+    optionSetInitiateScaleButtonTerminate (boost::bind (&FWScreen::terminateFWScale, this, _1, _2, _3));
+    optionSetResetButtonInitiate (boost::bind (&FWScreen::resetFWTransform, this, _1, _2, _3));
+    optionSetResetKeyInitiate (boost::bind (&FWScreen::resetFWTransform, this, _1, _2, _3));
+    optionSetToggleAxisKeyInitiate (boost::bind (&FWScreen::toggleFWAxis, this, _1, _2, _3));
+    
+    // Rotate / Scale Up Down Left Right TODO: rebind these actions on option change
+
+    optionSetScaleUpButtonInitiate (boost::bind (&FWScreen::scale, this, _1, _2, _3, SCALE_INC));
+    optionSetScaleDownButtonInitiate (boost::bind (&FWScreen::scale, this, _1, _2, _3, NEG_SCALE_INC));
+    optionSetScaleUpKeyInitiate (boost::bind (&FWScreen::scale, this, _1, _2, _3, SCALE_INC));
+    optionSetScaleDownKeyInitiate (boost::bind (&FWScreen::scale, this, _1, _2, _3, NEG_SCALE_INC));
+
+    optionSetRotateUpKeyInitiate (boost::bind (&FWScreen::rotate, this, _1, _2, _3, 0, ROTATE_INC, 0));
+    optionSetRotateDownKeyInitiate (boost::bind (&FWScreen::rotate, this, _1, _2, _3, 0, NEG_ROTATE_INC, 0));
+    optionSetRotateLeftKeyInitiate (boost::bind (&FWScreen::rotate, this, _1, _2, _3, ROTATE_INC, 0, 0));
+    optionSetRotateRightKeyInitiate (boost::bind (&FWScreen::rotate, this, _1, _2, _3, NEG_ROTATE_INC, 0, 0));
+    optionSetRotateCKeyInitiate (boost::bind (&FWScreen::rotate, this, _1, _2, _3, 0, 0, ROTATE_INC));
+    optionSetRotateCcKeyInitiate (boost::bind (&FWScreen::rotate, this, _1, _2, _3, 0, 0, NEG_ROTATE_INC));
+
+    optionSetRotateInitiate (boost::bind (&FWScreen::rotateAction, this, _1, _2, _3));
+    optionSetIncrementRotateInitiate (boost::bind (&FWScreen::incrementRotateAction, this, _1, _2, _3));
+    optionSetScaleInitiate (boost::bind (&FWScreen::scaleAction, this, _1, _2, _3));
+
+    optionSetSnapModsNotify (boost::bind (&FWScreen::optionChanged, this, _1, _2));
+    optionSetInvertModsNotify (boost::bind (&FWScreen::optionChanged, this, _1, _2));
+
+    reloadSnapKeys ();
+}
+
+bool
+FWPluginVTable::init ()
+{
+    if (!CompPlugin::checkPluginABI ("core", CORE_ABIVERSION))
+	return false;
+    if (!CompPlugin::checkPluginABI ("composite", COMPIZ_COMPOSITE_ABI))
+	return false;
+    if (!CompPlugin::checkPluginABI ("opengl", COMPIZ_OPENGL_ABI))
+	return false;
+
+    if (!screen->XShape ())
+    {
+	compLogMessage ("shelf", CompLogLevelError,
+			"No Shape extension found. IPW Usage not enabled \n");
+    }
+
+    return true;
+}

=== added file 'plugins/freewins/src/freewins.h'
--- plugins/freewins/src/freewins.h	1970-01-01 00:00:00 +0000
+++ plugins/freewins/src/freewins.h	2013-02-28 06:12:23 +0000
@@ -0,0 +1,589 @@
+/**
+ * Compiz Fusion Freewins plugin
+ *
+ * freewins.h
+ *
+ * Copyright (C) 2007  Rodolfo Granata <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author(s):
+ * Rodolfo Granata <[e-mail]>
+ *
+ * Button binding support and Reset added by:
+ * enigma_0Z <[e-mail]>
+ *
+ * Scaling, Animation, Input-Shaping, Snapping
+ * and Key-Based Transformation added by:
+ * Sam Spilsbury <[e-mail]>
+ *
+ * Most of the input handling here is based on
+ * the shelf plugin by
+ *        : Kristian Lyngstøl <[e-mail]>
+ *        : Danny Baumann <[e-mail]>
+ *
+ * Description:
+ *
+ * This plugin allows you to freely transform the texture of a window,
+ * whether that be rotation or scaling to make better use of screen space
+ * or just as a toy.
+ *
+ * Todo:
+ *  - Fully implement an input redirection system by
+ *    finding an inverse matrix, multiplying by it,
+ *    translating to the actual window co-ords and
+ *    XSendEvent() the co-ords to the actual window.
+ *  - Code could be cleaner
+ *  - Add timestep and speed options to animation
+ *  - Add window hover-over info via paintOutput : i.e
+ *    - Resize borders
+ *    - 'Reset' Button
+ *    - 'Scale' Button
+ *    - 'Rotate' Button
+ */
+
+#include <core/core.h>
+#include <core/pluginclasshandler.h>
+#include <composite/composite.h>
+#include <opengl/opengl.h>
+#include <core/atoms.h>
+
+#include <cmath>
+#include <cstdio>
+#include <cstring>
+
+#include <X11/cursorfont.h>
+#include <X11/extensions/shape.h>
+
+#include <GL/glu.h>
+#include <GL/gl.h>
+
+#include "freewins_options.h"
+
+/* #define ABS(x) ((x)>0?(x):-(x)) */
+#define D2R(x) ((x) * (M_PI / 180.0))
+#define R2D(x) ((x) * (180 / M_PI))
+
+/* ------ Macros ---------------------------------------------------------*/
+
+#define WIN_OUTPUT_X(w) (w->x () - w->output ().left)
+#define WIN_OUTPUT_Y(w) (w->y () - w->output ().top)
+
+#define WIN_OUTPUT_W(w) (w->width () + w->output ().left + w->output ().right)
+#define WIN_OUTPUT_H(w) (w->height () + w->output ().top + w->output ().bottom)
+
+#define WIN_REAL_X(w) (w->x () - w->border ().left)
+#define WIN_REAL_Y(w) (w->y () - w->border ().top)
+
+#define WIN_REAL_W(w) (w->width () + w->border ().left + w->border ().right)
+#define WIN_REAL_H(w) (w->height () + w->border ().top + w->border ().bottom)
+
+#define WIN_CORNER1(w) GLVector ic1 = GLVector (WIN_REAL_X (w), WIN_REAL_Y (w), 0.0f, 1.0f);
+#define WIN_CORNER2(w) GLVector ic2 = GLVector (WIN_REAL_X (w) + WIN_REAL_W (w), WIN_REAL_Y (w), 0.0f, 1.0f);
+#define WIN_CORNER3(w) GLVector ic3 = GLVector (WIN_REAL_X (w), WIN_REAL_Y (w) + WIN_REAL_H (w), 0.0f, 1.0f);
+#define WIN_CORNER4(w) GLVector ic4 = GLVector (WIN_REAL_X (w) + WIN_REAL_W (w), WIN_REAL_Y (w) + WIN_REAL_H (w), 0.0f, 1.0f);
+
+#define WIN_OCORNER1(w) GLVector oc1 = GLVector (WIN_OUTPUT_X (w), WIN_OUTPUT_Y (w), 0.0f, 1.0f);
+#define WIN_OCORNER2(w) GLVector oc2 = GLVector (WIN_OUTPUT_X (w) + WIN_OUTPUT_W (w), WIN_OUTPUT_Y (w), 0.0f, 1.0f);
+#define WIN_OCORNER3(w) GLVector oc3 = GLVector (WIN_OUTPUT_X (w), WIN_OUTPUT_Y (w) + WIN_OUTPUT_H (w), 0.0f, 1.0f);
+#define WIN_OCORNER4(w) GLVector oc4 = GLVector ( WIN_OUTPUT_X (w) + WIN_OUTPUT_W (w), WIN_OUTPUT_Y (w) + WIN_OUTPUT_H (w), 0.0f, 1.0f);
+
+/* ------ Structures and Enums ------------------------------------------*/
+
+/* Enums */
+typedef enum _StartCorner
+{
+    CornerTopLeft = 0,
+    CornerTopRight = 1,
+    CornerBottomLeft = 2,
+    CornerBottomRight = 3
+} StartCorner;
+
+typedef enum _FWGrabType
+{
+    grabNone = 0,
+    grabRotate,
+    grabScale,
+    grabMove,
+    grabResize
+} FWGrabType;
+
+typedef enum _Direction
+{
+    UpDown = 0,
+    LeftRight = 1
+} Direction;
+
+typedef enum _FWAxisType
+{
+    axisX = 0,
+    axisY,
+    axisZ,
+    axisXY,
+    axisXZ,
+} FWAxisType;
+
+/* Shape info / restoration */
+class FWWindowInputInfo
+{
+    public:
+
+	FWWindowInputInfo (CompWindow *);
+	~FWWindowInputInfo ();
+
+    public:
+	CompWindow                *w;
+
+	Window     ipw;
+
+	XRectangle *inputRects;
+	int        nInputRects;
+	int        inputRectOrdering;
+
+	XRectangle *frameInputRects;
+	int        frameNInputRects;
+	int        frameInputRectOrdering;
+};
+
+class FWWindowOutputInfo
+{
+    public:
+	float shapex1;
+	float shapex2;
+	float shapex3;
+	float shapex4;
+	float shapey1;
+	float shapey2;
+	float shapey3;
+	float shapey4;
+}; 
+
+/* Trackball */
+
+/*typedef struct _FWTrackball
+{
+    CompVector mouseX;
+    CompVector mouse0;
+    CompVector tr_axis;
+    float tr_ang;
+    float tr_radius;
+
+} FWTrackball;*/
+
+/* Transformation info */
+class FWTransformedWindowInfo
+{
+    public:
+	FWTransformedWindowInfo () :
+	    angX (0),
+	    angY (0),
+	    angZ (0),
+	    scaleX (1.0f),
+	    scaleY (1.0f),
+	    unsnapAngX (0),
+	    unsnapAngY (0),
+	    unsnapAngZ (0),
+	    unsnapScaleX (0),
+	    unsnapScaleY (0) {}
+
+	//FWTrackball trackball;
+
+	float angX;
+	float angY;
+	float angZ;
+
+	float scaleX;
+	float scaleY;
+
+	// Window transformation
+
+	/* Used for snapping */
+
+	float unsnapAngX;
+	float unsnapAngY;
+	float unsnapAngZ;
+
+	float unsnapScaleX;
+	float unsnapScaleY;
+};
+
+class FWAnimationInfo
+{
+    public:
+
+	FWAnimationInfo () :
+	    oldAngX (0),
+	    oldAngY (0),
+	    oldAngZ (0),
+	    oldScaleX (1.0f),
+	    oldScaleY (1.0f),
+	    destAngX (0),
+	    destAngY (0),
+	    destAngZ (0),
+	    destScaleX (1.0f),
+	    destScaleY (1.0f),
+	    steps (0) {}
+
+	// Old values to animate from
+	float oldAngX;
+	float oldAngY;
+	float oldAngZ;
+
+	float oldScaleX;
+	float oldScaleY;
+
+	// New values to animate to
+	float destAngX;
+	float destAngY;
+	float destAngZ;
+
+	float destScaleX;
+	float destScaleY;
+
+	// For animation
+	float steps;
+};
+
+class FWScreen :
+	public PluginClassHandler <FWScreen, CompScreen>,
+	public ScreenInterface,
+	public CompositeScreenInterface,
+	public GLScreenInterface,
+	public FreewinsOptions
+{
+    public:
+
+	FWScreen (CompScreen *screen);
+
+	CompositeScreen *cScreen;
+	GLScreen	*gScreen;
+
+	std::list <FWWindowInputInfo *> mTransformedWindows;
+
+	int mClick_root_x;
+	int mClick_root_y;
+
+	CompWindow *mGrabWindow;
+	CompWindow *mHoverWindow;
+	CompWindow *mLastGrabWindow;
+
+	bool mAxisHelp;
+	bool mSnap;
+	bool mInvert;
+	int  mSnapMask;
+	int  mInvertMask;
+
+	Cursor mRotateCursor;
+
+	CompScreen::GrabHandle mGrabIndex;
+
+	void preparePaint (int);
+	bool glPaintOutput (const GLScreenPaintAttrib &,
+			    const GLMatrix	      &,
+			    const CompRegion	      &,
+			    CompOutput		      *,
+			    unsigned int		);
+	void donePaint ();
+
+	void handleEvent (XEvent *);
+
+	void
+	optionChanged (CompOption *option,
+		       FreewinsOptions::Options num);
+
+	void
+	reloadSnapKeys ();
+
+	bool
+	initiateFWRotate (CompAction         *action,
+			  CompAction::State  state,
+			  CompOption::Vector options);
+
+	bool
+	terminateFWRotate (CompAction          *action,
+			   CompAction::State   state,
+			   CompOption::Vector  options);
+
+	bool
+	initiateFWScale (CompAction         *action,
+			 CompAction::State  state,
+			 CompOption::Vector options);
+
+	bool
+	terminateFWScale (CompAction         *action,
+			  CompAction::State  state,
+			  CompOption::Vector options);
+
+	bool
+	rotate (CompAction         *action,
+		CompAction::State  state,
+		CompOption::Vector options, int dx, int dy, int dz);
+
+	bool
+	scale (CompAction          *action,
+	       CompAction::State   state,
+	       CompOption::Vector  options,
+	       int		     scale);
+	bool
+	resetFWTransform (CompAction         *action,
+			  CompAction::State  state,
+			  CompOption::Vector options);
+
+	bool
+	rotateAction (CompAction         *action,
+		      CompAction::State  state,
+		      CompOption::Vector options);
+
+	bool
+	incrementRotateAction (CompAction         *action,
+			       CompAction::State  state,
+			       CompOption::Vector options);
+
+	bool
+	scaleAction (CompAction         *action,
+		     CompAction::State  state,
+		     CompOption::Vector options);
+
+	bool
+	toggleFWAxis (CompAction         *action,
+		      CompAction::State  state,
+		      CompOption::Vector options);
+
+	void
+	addWindowToList (FWWindowInputInfo *info);
+
+	void
+	removeWindowFromList (FWWindowInputInfo *info);
+
+	void
+	adjustIPWStacking ();
+
+	void
+	rotateProjectVector (GLVector &vector,
+			     GLMatrix &transform,
+			     GLdouble *resultX,
+			     GLdouble *resultY,
+			     GLdouble *resultZ);
+
+	void
+	perspectiveDistortAndResetZ (GLMatrix &transform);
+
+	void
+	modifyMatrix  (GLMatrix &transform,
+		       float angX, float angY, float angZ,
+		       float tX, float tY, float tZ,
+		       float scX, float scY, float scZ,
+		       float adjustX, float adjustY, bool paint);
+
+	CompRect
+	createSizedRect (float xScreen1,
+			 float xScreen2,
+			 float xScreen3,
+			 float xScreen4,
+			 float yScreen1,
+			 float yScreen2,
+			 float yScreen3,
+			 float yScreen4);
+
+	CompWindow *
+	getRealWindow (CompWindow *w);
+};
+
+/* Freewins Window Structure */
+class FWWindow :
+	public PluginClassHandler <FWWindow, CompWindow>,
+	public WindowInterface,
+	public CompositeWindowInterface,
+	public GLWindowInterface
+{
+    public:
+
+	FWWindow (CompWindow *w);
+	~FWWindow ();
+
+	CompWindow *window;
+	CompositeWindow *cWindow;
+	GLWindow	*gWindow;
+
+	bool glPaint (const GLWindowPaintAttrib &,
+		      const GLMatrix		&,
+		      const CompRegion		&,
+		      unsigned int		  );
+
+	bool damageRect (bool initial,
+			 const CompRect &);
+
+	void moveNotify (int, int, bool);
+	void resizeNotify (int, int, int, int);
+
+	float mIMidX;
+	float mIMidY;
+
+	float mOMidX; /* These will be removed */
+	float mOMidY;
+
+	float mAdjustX;
+	float mAdjustY;
+
+	float mRadius;
+
+	// Used for determining window movement
+
+	int mOldWinX;
+	int mOldWinY;
+
+	// Used for resize
+
+	int mWinH;
+	int mWinW;
+
+	Direction mDirection;
+
+	// Used to determine starting point
+	StartCorner mCorner;
+
+	// Transformation info
+	FWTransformedWindowInfo mTransform;
+
+	// Animation Info
+	FWAnimationInfo mAnimate;
+
+	// Input Info
+	FWWindowInputInfo *mInput;
+
+	//Output Info
+	FWWindowOutputInfo mOutput;
+
+	CompRect mOutputRect;
+	CompRect mInputRect;
+
+	// Used to determine whether to animate the window
+	bool mResetting;
+	bool mIsAnimating;
+
+	// Used to determine whether rotating on X and Y axis, or just on Z
+	bool mCan2D; // These need to be removed
+	bool mCan3D;
+
+	bool mTransformed; // So does this in favor of FWWindowInputInfo
+
+	FWGrabType mGrab;
+
+	void
+	shapeIPW ();
+
+	void
+	saveInputShape (XRectangle **retRects,
+			int       *retCount,
+			int       *retOrdering);
+
+	void
+	adjustIPW ();
+
+	void
+	createIPW ();
+
+	bool
+	handleWindowInputInfo ();
+
+	void
+	shapeInput ();
+
+	void
+	unshapeInput ();
+
+	void
+	handleIPWResizeInitiate ();
+
+	void
+	handleIPWMoveInitiate ();
+
+	void
+	handleIPWMoveMotionEvent (unsigned int x,
+				  unsigned int y);
+
+	void
+	handleIPWResizeMotionEvent (unsigned int x,
+				    unsigned int y);
+
+	void
+	handleRotateMotionEvent (float dx,
+				 float dy,
+				 int x,
+				 int y);
+
+	void
+	handleScaleMotionEvent (float dx,
+				float dy,
+				int x,
+				int y);
+
+	void
+	handleButtonReleaseEvent ();
+
+	void
+	handleEnterNotify (XEvent *xev);
+
+	void
+	handleLeaveNotify (XEvent *xev);
+
+	void
+	damageArea ();
+
+	void
+	setPrepareRotation (float dx,
+			    float dy,
+			    float dz,
+			    float dsu,
+			    float dsd);
+
+	void
+	calculateInputOrigin (float x, float y);
+
+	void
+	calculateOutputOrigin (float x, float y);
+
+	void
+	calculateOutputRect ();
+
+	void
+	calculateInputRect ();
+
+	CompRect
+	calculateWindowRect (GLVector c1,
+			     GLVector c2,
+			     GLVector c3,
+			     GLVector c4);
+
+	void
+	determineZAxisClick (int px,
+			     int py,
+			     bool motion);
+	bool
+	canShape ();
+
+	void
+	handleSnap ();
+};
+
+#define FREEWINS_SCREEN(screen)						       \
+    FWScreen *fws = FWScreen::get (screen);
+
+#define FREEWINS_WINDOW(window)						       \
+    FWWindow *fww = FWWindow::get (window);
+
+class FWPluginVTable :
+	public CompPlugin::VTableForScreenAndWindow <FWScreen, FWWindow>
+{
+    public:
+
+	bool init ();
+};

=== added file 'plugins/freewins/src/input.cpp'
--- plugins/freewins/src/input.cpp	1970-01-01 00:00:00 +0000
+++ plugins/freewins/src/input.cpp	2013-02-28 06:12:23 +0000
@@ -0,0 +1,397 @@
+/**
+ * Compiz Fusion Freewins plugin
+ *
+ * input.cpp
+ *
+ * Copyright (C) 2007  Rodolfo Granata <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author(s):
+ * Rodolfo Granata <[e-mail]>
+ * Sam Spilsbury <[e-mail]>
+ *
+ * Button binding support and Reset added by:
+ * enigma_0Z <[e-mail]>
+ *
+ * Most of the input handling here is based on
+ * the shelf plugin by
+ *        : Kristian Lyngstøl <[e-mail]>
+ *        : Danny Baumann <[e-mail]>
+ *
+ * Description:
+ *
+ * This plugin allows you to freely transform the texture of a window,
+ * whether that be rotation or scaling to make better use of screen space
+ * or just as a toy.
+ *
+ * Todo:
+ *  - Fully implement an input redirection system by
+ *    finding an inverse matrix, multiplying by it,
+ *    translating to the actual window co-ords and
+ *    XSendEvent() the co-ords to the actual window.
+ *  - Code could be cleaner
+ *  - Add timestep and speed options to animation
+ *  - Add window hover-over info via paintOutput : i.e
+ *    - Resize borders
+ *    - 'Reset' Button
+ *    - 'Scale' Button
+ *    - 'Rotate' Button
+ */
+
+#include "freewins.h"
+#include <cairo/cairo-xlib.h>
+
+
+/* ------ Input Prevention -------------------------------------------*/
+
+/* Shape the IPW
+ * Thanks to Joel Bosveld (b0le)
+ * for helping me with this section
+ */
+void
+FWWindow::shapeIPW ()
+{
+    if (mInput)
+    {
+	Window xipw = mInput->ipw;
+	CompWindow *ipw = screen->findWindow (xipw);
+
+	if (ipw)
+	{
+	    cairo_t 				*cr;
+	    int               width, height;
+
+	    width = mInputRect.width ();
+	    height = mInputRect.height ();
+
+	    Pixmap b = XCreatePixmap (screen->dpy (), xipw, width, height, 1);
+
+	    cairo_surface_t *bitmap =
+		    cairo_xlib_surface_create_for_bitmap (screen->dpy (),
+							  b,
+							  DefaultScreenOfDisplay (screen->dpy ()),
+							  width, height);
+
+	    cr = cairo_create (bitmap);
+
+	    cairo_save (cr);
+	    cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
+	    cairo_paint (cr);
+	    cairo_restore (cr);
+
+	    /* Move to our first corner (TopLeft) */
+
+	    cairo_move_to (cr,
+			   mOutput.shapex1 - MIN(mInputRect.x1 (), mInputRect.x2 ()),
+			   mOutput.shapey1 - MIN(mInputRect.y1 (), mInputRect.y2 ()));
+
+	    /* Line to TopRight */
+
+	    cairo_line_to (cr,
+			   mOutput.shapex2 - MIN(mInputRect.x1 (), mInputRect.x2 ()),
+			   mOutput.shapey2 - MIN(mInputRect.y1 (), mInputRect.y2 ()));
+
+	    /* Line to BottomRight */
+
+	    cairo_line_to (cr,
+			   mOutput.shapex4 - MIN(mInputRect.x1 (), mInputRect.x2 ()),
+			   mOutput.shapey4 - MIN(mInputRect.y1 (), mInputRect.y2 ()));
+
+	    /* Line to BottomLeft */
+
+	    cairo_line_to (cr,
+			   mOutput.shapex3 - MIN(mInputRect.x1 (), mInputRect.x2 ()),
+			   mOutput.shapey3 - MIN(mInputRect.y1 (), mInputRect.y2 ()));
+
+	    /* Line to TopLeft */
+
+	    cairo_line_to (cr,
+			   mOutput.shapex1 - MIN(mInputRect.x1 (), mInputRect.x2 ()),
+			   mOutput.shapey1 - MIN(mInputRect.y1 (), mInputRect.y2 ()));
+
+	    /* Ensure it's all closed up */
+
+	    cairo_close_path (cr);
+
+	    /* Fill in the box */
+
+	    cairo_set_source_rgb (cr, 1.0f, 1.0f, 1.0f);
+	    cairo_fill (cr);
+
+	    /* This takes the bitmap we just drew with cairo
+	     * and scans out the white bits (You can see these)
+	     * if you uncomment the following line after this
+	     * comment. Then, all the bits we drew on are clickable,
+	     * leaving us with a nice and neat window shape. Yummy.
+	     */
+
+	    /* XWriteBitmapFile (ipw->screen->display->display,
+								 "/path/to/your/image.bmp",
+								 b,
+								 ipw->width,
+								 ipw->height,
+								 -1, -1);  */
+
+	    XShapeCombineMask (screen->dpy (), xipw,
+			       ShapeBounding,
+			       0,
+			       0,
+			       b,
+			       ShapeSet);
+
+	    XFreePixmap (screen->dpy (), b);
+	    cairo_surface_destroy (bitmap);
+	    cairo_destroy (cr);
+	}
+    }
+}
+
+void
+FWWindow::saveInputShape (XRectangle **retRects,
+			  int       *retCount,
+			  int       *retOrdering)
+{
+    XRectangle *rects;
+    int        count = 0, ordering;
+    Display    *dpy = screen->dpy ();
+
+    rects = XShapeGetRectangles (dpy, window->id (), ShapeInput, &count, &ordering);
+
+    /* check if the returned shape exactly matches the window shape -
+       if that is true, the window currently has no set input shape */
+    if ((count == 1) &&
+	(rects[0].x == -window->geometry ().border ()) &&
+	(rects[0].y == -window->geometry ().border ()) &&
+	(rects[0].width == (window->serverWidth () +
+			    window->serverGeometry ().border ())) &&
+	(rects[0].height == (window->serverHeight () +
+			     window->serverGeometry (). border ())))
+    {
+	count = 0;
+    }
+    
+    *retRects    = rects;
+    *retCount    = count;
+    *retOrdering = ordering;
+}
+
+void
+FWScreen::addWindowToList (FWWindowInputInfo *info)
+{
+    mTransformedWindows.push_back (info);
+}
+
+void
+FWScreen::removeWindowFromList (FWWindowInputInfo *info)
+{
+    mTransformedWindows.remove (info);
+}
+
+/* Adjust size and location of the input prevention window */
+void
+FWWindow::adjustIPW ()
+{
+    XWindowChanges xwc;
+    Display        *dpy = screen->dpy ();
+    float          f_width, f_height;
+
+    if (!mInput || !mInput->ipw)
+	return;
+
+    f_width  = mInputRect.width ();
+    f_height = mInputRect.height ();
+
+    xwc.x          = mInputRect.x ();
+    xwc.y          = mInputRect.y ();
+    xwc.width      = (int) f_width;
+    xwc.height     = (int) f_height;
+    xwc.stack_mode = Below;
+    /* XXX: This causes XConfigureWindow to break */
+    //xwc.sibling    = window->id ();
+
+    XMapWindow (dpy, mInput->ipw);
+
+    XConfigureWindow (dpy, mInput->ipw,
+		      CWStackMode | CWX | CWY | CWWidth | CWHeight,
+		      &xwc);
+
+    shapeIPW ();
+}
+
+void
+FWScreen::adjustIPWStacking ()
+{
+
+    foreach (FWWindowInputInfo *run, mTransformedWindows)
+    {
+	if (!run->w->prev || run->w->prev->id () != run->ipw)
+	    FWWindow::get (run->w)->adjustIPW ();
+    }
+}
+
+/* Create an input prevention window */
+void
+FWWindow::createIPW ()
+{
+    Window               ipw;
+    XSetWindowAttributes attrib;
+    XWindowChanges       xwc;
+
+    if (!mInput || mInput->ipw)
+	return;
+
+    attrib.override_redirect = true;
+    //attrib.event_mask        = 0;
+
+    xwc.x = mInputRect.x ();
+    xwc.y = mInputRect.y ();
+    xwc.width = mInputRect.width ();
+    xwc.height = mInputRect.height ();
+
+    ipw = XCreateWindow (screen->dpy (),
+			 screen->root (),
+			 xwc.x, xwc.y, xwc.width, xwc.height, 0, CopyFromParent, InputOnly,
+			 CopyFromParent, CWOverrideRedirect, &attrib);
+
+    XMapWindow (screen->dpy (), ipw);
+
+    //XConfigureWindow (screen->dpy (), ipw, CWStackMode | CWX | CWY | CWWidth | CWHeight, &xwc);
+
+    mInput->ipw = ipw;
+
+    //shapeIPW ();
+}
+
+FWWindowInputInfo::FWWindowInputInfo (CompWindow *window) :
+    w (window),
+    ipw (None),
+    inputRects (NULL),
+    nInputRects (0),
+    inputRectOrdering (0),
+    frameInputRects (NULL),
+    frameNInputRects (0),
+    frameInputRectOrdering (0)
+{
+}
+
+FWWindowInputInfo::~FWWindowInputInfo ()
+{
+}
+
+bool
+FWWindow::handleWindowInputInfo ()
+{
+    FREEWINS_SCREEN (screen);
+
+    if (!mTransformed && mInput)
+    {
+	if (mInput->ipw)
+	    XDestroyWindow (screen->dpy (), mInput->ipw);
+
+	unshapeInput ();
+	fws->removeWindowFromList (mInput);
+
+	delete mInput;
+	mInput = NULL;
+
+	return false;
+    }
+    else if (mTransformed && !mInput)
+    {
+	mInput = new FWWindowInputInfo (window);
+	if (!mInput)
+	    return false;
+
+	shapeInput ();
+	createIPW ();
+	fws->addWindowToList (mInput);
+    }
+
+    return true;
+}
+
+/* Shape the input of the window when scaled.
+ * Since the IPW will be dealing with the input, removing input
+ * from the window entirely is a perfectly good solution. */
+void
+FWWindow::shapeInput ()
+{
+    Window     frame;
+    Display    *dpy = screen->dpy();
+
+    saveInputShape (&mInput->inputRects,
+		    &mInput->nInputRects,
+		    &mInput->inputRectOrdering);
+
+    frame = window->frame();
+    if (frame)
+    {
+	saveInputShape (&mInput->frameInputRects, &mInput->frameNInputRects,
+			&mInput->frameInputRectOrdering);
+    }
+    else
+    {
+	mInput->frameInputRects        = NULL;
+	mInput->frameNInputRects       = -1;
+	mInput->frameInputRectOrdering = 0;
+    }
+
+    /* clear shape */
+    XShapeSelectInput (dpy, window->id(), NoEventMask);
+    XShapeCombineRectangles  (dpy, window->id(), ShapeInput, 0, 0,
+			      NULL, 0, ShapeSet, 0);
+    
+    if (frame)
+	XShapeCombineRectangles  (dpy, window->frame(), ShapeInput, 0, 0,
+				  NULL, 0, ShapeSet, 0);
+
+    XShapeSelectInput (dpy, window->id(), ShapeNotify);
+}
+
+/* Restores the shape of the window:
+ * If the window had a custom shape defined by inputRects then we restore
+ * that in order with XShapeCombineRectangles.
+ * Most windows have no specific defined shape so we can restore it with
+ * setting the shape to a 0x0 mask
+ */
+void
+FWWindow::unshapeInput ()
+{
+    Display *dpy = screen->dpy ();
+
+    if (mInput->nInputRects)
+    {
+	XShapeCombineRectangles (dpy, window->id(), ShapeInput, 0, 0,
+				 mInput->inputRects, mInput->nInputRects,
+				 ShapeSet, mInput->inputRectOrdering);
+    }
+    else
+    {
+	XShapeCombineMask (dpy, window->id(), ShapeInput, 0, 0, None, ShapeSet);
+    }
+
+    if (mInput->frameNInputRects >= 0)
+    {
+	if (mInput->frameNInputRects)
+	{
+	    XShapeCombineRectangles (dpy, window->frame(), ShapeInput, 0, 0,
+				     mInput->frameInputRects,
+				     mInput->frameNInputRects,
+				     ShapeSet,
+				     mInput->frameInputRectOrdering);
+	}
+	else
+	{
+	    XShapeCombineMask (dpy, window->frame(), ShapeInput, 0, 0, None, ShapeSet);
+	}
+    }
+}

=== added file 'plugins/freewins/src/paint.cpp'
--- plugins/freewins/src/paint.cpp	1970-01-01 00:00:00 +0000
+++ plugins/freewins/src/paint.cpp	2013-02-28 06:12:23 +0000
@@ -0,0 +1,527 @@
+/**
+ * Compiz Fusion Freewins plugin
+ *
+ * paint.cpp
+ *
+ * Copyright (C) 2007  Rodolfo Granata <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author(s):
+ * Rodolfo Granata <[e-mail]>
+ * Sam Spilsbury <[e-mail]>
+ *
+ * Button binding support and Reset added by:
+ * enigma_0Z <[e-mail]>
+ *
+ * Most of the input handling here is based on
+ * the shelf plugin by
+ *        : Kristian Lyngstøl <[e-mail]>
+ *        : Danny Baumann <[e-mail]>
+ *
+ * Description:
+ *
+ * This plugin allows you to freely transform the texture of a window,
+ * whether that be rotation or scaling to make better use of screen space
+ * or just as a toy.
+ *
+ * Todo:
+ *  - Fully implement an input redirection system by
+ *    finding an inverse matrix, multiplying by it,
+ *    translating to the actual window co-ords and
+ *    XSendEvent() the co-ords to the actual window.
+ *  - Code could be cleaner
+ *  - Add timestep and speed options to animation
+ *  - Add window hover-over info via paintOutput : i.e
+ *    - Resize borders
+ *    - 'Reset' Button
+ *    - 'Scale' Button
+ *    - 'Rotate' Button
+ */
+
+#include "freewins.h"
+
+
+/* ------ Window and Output Painting ------------------------------------*/
+
+/* Damage util function */
+
+void
+FWWindow::damageArea ()
+{
+    CompositeScreen::get (screen)->damageRegion (mOutputRect);
+}
+
+/* Animation Prep */
+void
+FWScreen::preparePaint (int	      ms)
+{
+    /* FIXME: should only loop over all windows if at least one animation is running */
+    foreach (CompWindow *w, screen->windows ())
+    {
+	FREEWINS_WINDOW (w);
+	float speed = optionGetSpeed ();
+	fww->mAnimate.steps = ((float) ms / ((20.1 - speed) * 100));
+
+	if (fww->mAnimate.steps < 0.005)
+	    fww->mAnimate.steps = 0.005;
+
+	/* Animation. We calculate how much increment
+	 * a window must rotate / scale per paint by
+	 * using the set destination attributes minus
+	 * the old attributes divided by the time
+	 * remaining.
+	 */
+
+	/* Don't animate if the window is saved */
+	fww->mTransform.angX += (float) fww->mAnimate.steps * (fww->mAnimate.destAngX - fww->mTransform.angX) * speed;
+	fww->mTransform.angY += (float) fww->mAnimate.steps * (fww->mAnimate.destAngY - fww->mTransform.angY) * speed;
+	fww->mTransform.angZ += (float) fww->mAnimate.steps * (fww->mAnimate.destAngZ - fww->mTransform.angZ) * speed;
+
+	fww->mTransform.scaleX += (float) fww->mAnimate.steps * (fww->mAnimate.destScaleX - fww->mTransform.scaleX) * speed;
+	fww->mTransform.scaleY += (float) fww->mAnimate.steps * (fww->mAnimate.destScaleY - fww->mTransform.scaleY) * speed;
+
+	if (((fww->mTransform.angX >= fww->mAnimate.destAngX - 0.05 &&
+	      fww->mTransform.angX <= fww->mAnimate.destAngX + 0.05 ) &&
+	     (fww->mTransform.angY >= fww->mAnimate.destAngY - 0.05 &&
+	      fww->mTransform.angY <= fww->mAnimate.destAngY + 0.05 ) &&
+	     (fww->mTransform.angZ >= fww->mAnimate.destAngZ - 0.05 &&
+	      fww->mTransform.angZ <= fww->mAnimate.destAngZ + 0.05 ) &&
+	     (fww->mTransform.scaleX >= fww->mAnimate.destScaleX - 0.00005 &&
+	      fww->mTransform.scaleX <= fww->mAnimate.destScaleX + 0.00005 ) &&
+	     (fww->mTransform.scaleY >= fww->mAnimate.destScaleY - 0.00005 &&
+	      fww->mTransform.scaleY <= fww->mAnimate.destScaleY + 0.00005 )))
+	{
+	    fww->mResetting = FALSE;
+
+	    fww->mTransform.angX = fww->mAnimate.destAngX;
+	    fww->mTransform.angY = fww->mAnimate.destAngY;
+	    fww->mTransform.angZ = fww->mAnimate.destAngZ;
+	    fww->mTransform.scaleX = fww->mAnimate.destScaleX;
+	    fww->mTransform.scaleY = fww->mAnimate.destScaleY;
+
+	    fww->mTransform.unsnapAngX = fww->mAnimate.destAngX;
+	    fww->mTransform.unsnapAngY = fww->mAnimate.destAngY;
+	    fww->mTransform.unsnapAngZ = fww->mAnimate.destAngZ;
+	    fww->mTransform.unsnapScaleX = fww->mAnimate.destScaleX;
+	    fww->mTransform.unsnapScaleY = fww->mAnimate.destScaleX;
+	}
+	//else
+	//    fww->damageArea ();
+    }
+
+    cScreen->preparePaint (ms);
+}
+
+/* Paint the window rotated or scaled */
+bool
+FWWindow::glPaint (const GLWindowPaintAttrib &attrib,
+		   const GLMatrix	     &transform,
+		   const CompRegion	     &region,
+		   unsigned int		     mask)
+{
+
+    GLMatrix wTransform (transform);
+    int currentCull, invertCull;
+    glGetIntegerv (GL_CULL_FACE_MODE, &currentCull);
+    invertCull = (currentCull == GL_BACK) ? GL_FRONT : GL_BACK;
+
+    bool status;
+
+    FREEWINS_SCREEN (screen);
+
+    /* Has something happened? */
+    
+    /* Check to see if we are painting on a transformed screen */
+    /* Enable this code when we can animate between the two states */
+
+    if ((mTransform.angX != 0.0 ||
+	 mTransform.angY != 0.0 ||
+	 mTransform.angZ != 0.0 ||
+	 mTransform.scaleX != 1.0 ||
+	 mTransform.scaleY != 1.0 ||
+	 mOldWinX != WIN_REAL_X (window) ||
+	 mOldWinY != WIN_REAL_Y (window)) && fws->optionGetShapeWindowTypes ().evaluate (window))
+    {
+	mOldWinX = WIN_REAL_X (window);
+	mOldWinY = WIN_REAL_Y (window);
+
+	/* Figure out where our 'origin' is, don't allow the origin to
+	 * be where we clicked if the window is not grabbed, etc
+	 */
+
+	/* Here we duplicate some of the work the openGL does
+	 * but for different reasons. We have access to the
+	 * window's transformation matrix, so we will create
+	 * our own matrix and apply the same transformations
+	 * to it. From there, we create vectors for each point
+	 * that we wish to track and multiply them by this
+	 * matrix to give us the rotated / scaled co-ordinates.
+	 * From there, we project these co-ordinates onto the flat
+	 * screen that we have using the OGL viewport, projection
+	 * matrix and model matrix. Projection gives us three
+	 * co-ordinates, but we ignore Z and just use X and Y
+	 * to store in a surrounding rectangle. We can use this
+	 * surrounding rectangle to make things like shaping and
+	 * damage a lot more accurate than they used to be.
+	 */
+
+	calculateOutputRect ();
+
+	/* Prepare for transformation by
+	 * doing any necessary adjustments */
+	float autoScaleX = 1.0f;
+	float autoScaleY = 1.0f;
+
+	if (fws->optionGetAutoZoom ())
+	{
+	    float apparantWidth = mOutputRect.width ();
+	    float apparantHeight = mOutputRect.height ();
+
+	    autoScaleX = (float) WIN_OUTPUT_W (window) / (float) apparantWidth;
+	    autoScaleY = (float) WIN_OUTPUT_H (window) / (float) apparantHeight;
+
+	    if (autoScaleX >= 1.0f)
+		autoScaleX = 1.0f;
+	    if (autoScaleY >= 1.0f)
+		autoScaleY = 1.0f;
+
+	    autoScaleX = autoScaleY = (autoScaleX + autoScaleY) / 2;
+
+	    /* Because we modified the scale after calculating
+	     * the output rect, we need to recalculate again */
+	    calculateOutputRect ();
+
+	}
+	/*
+	float scaleX = autoScaleX - (1 - mTransform.scaleX);
+	float scaleY = autoScaleY - (1 - mTransform.scaleY);
+	*/
+
+	/* Actually Transform the window */
+	mask |= PAINT_WINDOW_TRANSFORMED_MASK;
+
+	/* Adjust the window in the matrix to prepare for transformation */
+	if (mGrab != grabRotate && mGrab != grabScale)
+	{
+
+	    calculateInputOrigin (WIN_REAL_X (window) + WIN_REAL_W (window) / 2.0f,
+				  WIN_REAL_Y (window) + WIN_REAL_H (window) / 2.0f);
+	    calculateOutputOrigin (WIN_OUTPUT_X (window) + WIN_OUTPUT_W (window) / 2.0f,
+				   WIN_OUTPUT_Y (window) + WIN_OUTPUT_H (window) / 2.0f);
+	}
+
+	float adjustX = 0.0f;
+	float adjustY = 0.0f;
+	fws->modifyMatrix (wTransform,
+			   mTransform.angX,
+			   mTransform.angY,
+			   mTransform.angZ,
+			   mIMidX, mIMidY , 0.0f,
+			   mTransform.scaleX,
+			   mTransform.scaleY,
+			   1.0f, adjustX, adjustY, TRUE);
+
+	/* Create rects for input after we've dealt with output */
+	calculateInputRect ();
+
+	/* Determine if the window is inverted */
+	Bool xInvert = FALSE;
+	Bool yInvert = FALSE;
+
+	Bool needsInvert = FALSE;
+	float renX = fabs (fmodf (mTransform.angX, 360.0f));
+	float renY = fabs (fmodf (mTransform.angY, 360.0f));
+
+	if (90 < renX && renX < 270)
+	    xInvert = TRUE;
+
+	if (90 < renY && renY < 270)
+	    yInvert = TRUE;
+
+	if ((xInvert || yInvert) && !(xInvert && yInvert))
+	    needsInvert = TRUE;
+
+	if (needsInvert)
+	    glCullFace (invertCull);
+
+	status = gWindow->glPaint (attrib, wTransform, region, mask);
+
+	if (needsInvert)
+	    glCullFace (currentCull);
+
+    }
+    else
+    {
+	status = gWindow->glPaint (attrib, wTransform, region, mask);
+    }
+
+    // Check if there are rotated windows
+    if (!((mTransform.angX >= 0.0f - 0.05 &&
+	   mTransform.angX <= 0.0f + 0.05 ) &&
+	  (mTransform.angY >= 0.0f - 0.05 &&
+	   mTransform.angY <= 0.0f + 0.05 ) &&
+	  (mTransform.angZ >= 0.0f - 0.05 &&
+	   mTransform.angZ <= 0.0f + 0.05 ) &&
+	  (mTransform.scaleX >= 1.0f - 0.00005 &&
+	   mTransform.scaleX <= 1.0f + 0.00005 ) &&
+	  (mTransform.scaleY >= 1.0f - 0.00005 &&
+	   mTransform.scaleY <= 1.0f + 0.00005 )) && !mTransformed)
+	mTransformed = TRUE;
+    else if (mTransformed)
+	mTransformed = FALSE;
+
+    /* There is still animation to be done */
+    if (!(((mTransform.angX >= mAnimate.destAngX - 0.05 &&
+	    mTransform.angX <= mAnimate.destAngX + 0.05 ) &&
+	   (mTransform.angY >= mAnimate.destAngY - 0.05 &&
+	    mTransform.angY <= mAnimate.destAngY + 0.05 ) &&
+	   (mTransform.angZ >= mAnimate.destAngZ - 0.05 &&
+	    mTransform.angZ <= mAnimate.destAngZ + 0.05 ) &&
+	   (mTransform.scaleX >= mAnimate.destScaleX - 0.00005 &&
+	    mTransform.scaleX <= mAnimate.destScaleX + 0.00005 ) &&
+	   (mTransform.scaleY >= mAnimate.destScaleY - 0.00005 &&
+	    mTransform.scaleY <= mAnimate.destScaleY + 0.00005 ))))
+    {
+	damageArea ();
+	mIsAnimating = TRUE;
+    }
+    else if (mIsAnimating) /* We're done animating now, and we were animating */
+    {
+	if (handleWindowInputInfo ())
+	    adjustIPW ();
+	mIsAnimating = FALSE;
+    }
+
+    return status;
+}
+
+/* Paint the window axis help onto the screen */
+bool
+FWScreen::glPaintOutput (const GLScreenPaintAttrib &attrib,
+			 const GLMatrix		   &transform,
+			 const CompRegion	   &region,
+			 CompOutput		   *output,
+			 unsigned int		   mask)
+{
+    GLMatrix zTransform (transform);
+
+    if (!mTransformedWindows.empty ())
+	mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS_MASK;
+
+    bool status = gScreen->glPaintOutput (attrib, transform, region, output, mask);
+
+    if (mAxisHelp && mHoverWindow)
+    {
+	int j;
+	float x = WIN_REAL_X(mHoverWindow) + WIN_REAL_W(mHoverWindow)/2.0;
+	float y = WIN_REAL_Y(mHoverWindow) + WIN_REAL_H(mHoverWindow)/2.0;
+
+	FREEWINS_WINDOW (mHoverWindow);
+
+	float zRad = fww->mRadius * (optionGetTdPercent () / 100);
+
+	bool wasCulled = glIsEnabled (GL_CULL_FACE);
+
+	zTransform.toScreenSpace (output, -DEFAULT_Z_CAMERA);
+
+	glPushMatrix ();
+	glLoadMatrixf (zTransform.getMatrix ());
+
+	if (wasCulled)
+	    glDisable (GL_CULL_FACE);
+
+	if (optionGetShowCircle () && optionGetRotationAxis () == RotationAxisAlwaysCentre)
+	{
+	    glColor4usv  (optionGetCircleColor ());
+	    glEnable (GL_BLEND);
+
+	    glBegin (GL_POLYGON);
+	    for (j = 0; j < 360; j += 10)
+		glVertex3f ( x + zRad * cos(D2R(j)), y + zRad * sin(D2R(j)), 0.0 );
+	    glEnd ();
+
+	    glDisable (GL_BLEND);
+	    glColor4usv  (optionGetLineColor ());
+	    glLineWidth (3.0);
+
+	    glBegin (GL_LINE_LOOP);
+	    for (j = 360; j >= 0; j -= 10)
+		glVertex3f ( x + zRad * cos(D2R(j)), y + zRad * sin(D2R(j)), 0.0 );
+	    glEnd ();
+
+	    glBegin (GL_LINE_LOOP);
+	    for (j = 360; j >= 0; j -= 10)
+		glVertex3f( x + fww->mRadius * cos(D2R(j)), y + fww->mRadius * sin(D2R(j)), 0.0 );
+	    glEnd ();
+
+	}
+
+	/* Draw the 'gizmo' */
+	if (optionGetShowGizmo ())
+	{
+	    glPushMatrix ();
+
+	    glTranslatef (x, y, 0.0);
+
+	    glScalef (zRad, zRad, zRad / (float)screen->width ());
+
+	    glRotatef (fww->mTransform.angX, 1.0f, 0.0f, 0.0f);
+	    glRotatef (fww->mTransform.angY, 0.0f, 1.0f, 0.0f);
+	    glRotatef (fww->mTransform.angZ, 0.0f, 0.0f, 1.0f);
+
+	    glLineWidth (4.0f);
+
+	    for (int i = 0; i < 3; i++)
+	    {
+		glPushMatrix ();
+		glColor4f (1.0 * (i==0), 1.0 * (i==1), 1.0 * (i==2), 1.0);
+		glRotatef (90.0, 1.0 * (i==0), 1.0 * (i==1), 1.0 * (i==2));
+
+		glBegin (GL_LINE_LOOP);
+		for (j=360; j>=0; j -= 10)
+		    glVertex3f ( cos (D2R (j)), sin (D2R (j)), 0.0 );
+		glEnd ();
+		glPopMatrix ();
+	    }
+
+	    glPopMatrix ();
+	    glColor4usv (defaultColor);
+	}
+
+	/* Draw the bounding box */
+	if (optionGetShowRegion ())
+	{
+	    glDisableClientState (GL_TEXTURE_COORD_ARRAY);
+	    glEnable (GL_BLEND);
+	    glColor4us (0x2fff, 0x2fff, 0x4fff, 0x4fff);
+	    glRecti (fww->mInputRect.x1 (), fww->mInputRect.y1 (), fww->mInputRect.x2 (), fww->mInputRect.y2 ());
+	    glColor4us (0x2fff, 0x2fff, 0x4fff, 0x9fff);
+	    glBegin (GL_LINE_LOOP);
+	    glVertex2i (fww->mInputRect.x1 (), fww->mInputRect.y1 ());
+	    glVertex2i (fww->mInputRect.x2 (), fww->mInputRect.y1 ());
+	    glVertex2i (fww->mInputRect.x1 (), fww->mInputRect.y2 ());
+	    glVertex2i (fww->mInputRect.x2 (), fww->mInputRect.y2 ());
+	    glEnd ();
+	    glColor4usv (defaultColor);
+	    glDisable (GL_BLEND);
+	    glEnableClientState (GL_TEXTURE_COORD_ARRAY);
+	}
+
+	if (optionGetShowCross ())
+	{
+
+	    glColor4usv  (optionGetCrossLineColor ());
+	    glBegin(GL_LINES);
+	    glVertex3f(x, y - (WIN_REAL_H (mHoverWindow) / 2), 0.0f);
+	    glVertex3f(x, y + (WIN_REAL_H (mHoverWindow) / 2), 0.0f);
+	    glEnd ();
+
+	    glBegin(GL_LINES);
+	    glVertex3f(x - (WIN_REAL_W (mHoverWindow) / 2), y, 0.0f);
+	    glVertex3f(x + (WIN_REAL_W (mHoverWindow) / 2), y, 0.0f);
+	    glEnd ();
+
+	    /* Move to our first corner (TopLeft)  */
+	    if (fww->mInput)
+	    {
+		glBegin(GL_LINES);
+		glVertex3f(fww->mOutput.shapex1, fww->mOutput.shapey1, 0.0f);
+		glVertex3f(fww->mOutput.shapex2, fww->mOutput.shapey2, 0.0f);
+		glEnd ();
+
+		glBegin(GL_LINES);
+		glVertex3f(fww->mOutput.shapex2, fww->mOutput.shapey2, 0.0f);
+		glVertex3f(fww->mOutput.shapex4, fww->mOutput.shapey4, 0.0f);
+		glEnd ();
+
+		glBegin(GL_LINES);
+		glVertex3f(fww->mOutput.shapex4, fww->mOutput.shapey4, 0.0f);
+		glVertex3f(fww->mOutput.shapex3, fww->mOutput.shapey3, 0.0f);
+		glEnd ();
+
+		glBegin(GL_LINES);
+		glVertex3f(fww->mOutput.shapex3, fww->mOutput.shapey3, 0.0f);
+		glVertex3f(fww->mOutput.shapex1, fww->mOutput.shapey1, 0.0f);
+		glEnd ();
+	    }
+	}
+	if (wasCulled)
+	    glEnable(GL_CULL_FACE);
+
+	glColor4usv(defaultColor);
+	glPopMatrix ();
+    }
+
+    return status;
+}
+
+void
+FWScreen::donePaint ()
+{
+
+    if (mAxisHelp && mHoverWindow)
+    {
+	FREEWINS_WINDOW (mHoverWindow);
+
+	REGION region;
+
+	region.rects = &region.extents;
+	region.numRects = region.size = 1;
+
+	region.extents.x1 = MIN (WIN_REAL_X (mHoverWindow),
+				 WIN_REAL_X (mHoverWindow)
+				 + WIN_REAL_W (mHoverWindow)
+				 / 2.0f - fww->mRadius);
+	region.extents.x2 = MAX (WIN_REAL_X (mHoverWindow),
+				 WIN_REAL_X (mHoverWindow)
+				 + WIN_REAL_W (mHoverWindow)
+				 / 2.0f + fww->mRadius);
+
+	region.extents.y1 = MIN (WIN_REAL_Y (mHoverWindow),
+				 WIN_REAL_Y (mHoverWindow)
+				 + WIN_REAL_H (mHoverWindow)
+				 / 2.0f - fww->mRadius);
+	region.extents.y2 = MAX (WIN_REAL_Y (mHoverWindow),
+				 WIN_REAL_Y (mHoverWindow)
+				 + WIN_REAL_H (mHoverWindow)
+				 / 2.0f + fww->mRadius);
+
+	CompRegion damageRegion (region.extents.x1, region.extents.y1, region.extents.x2 - region.extents.x1, region.extents.y2 - region.extents.y1);
+
+	cScreen->damageRegion (damageRegion);
+    }
+
+    cScreen->donePaint ();
+}
+
+/* Damage the Window Rect */
+bool
+FWWindow::damageRect (bool initial,
+		      const CompRect &rect)
+{
+    FREEWINS_SCREEN(screen);
+
+    if (mTransformed)
+	damageArea ();
+
+    /**
+     * Special situations where we must damage the screen
+     * i.e when we are playing with windows and wobbly is
+     * enabled
+     */
+
+    if ((mGrab == grabMove && !fws->optionGetImmediateMoves ())
+	|| (mIsAnimating || window->grabbed ()))
+	fws->cScreen->damageScreen ();
+
+    return cWindow->damageRect (initial, rect);
+}

=== added file 'plugins/freewins/src/util.cpp'
--- plugins/freewins/src/util.cpp	1970-01-01 00:00:00 +0000
+++ plugins/freewins/src/util.cpp	2013-02-28 06:12:23 +0000
@@ -0,0 +1,526 @@
+/**
+ * Compiz Fusion Freewins plugin
+ *
+ * util.cpp
+ *
+ * Copyright (C) 2007  Rodolfo Granata <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author(s):
+ * Rodolfo Granata <[e-mail]>
+ * Sam Spilsbury <[e-mail]>
+ *
+ * Button binding support and Reset added by:
+ * enigma_0Z <[e-mail]>
+ *
+ * Most of the input handling here is based on
+ * the shelf plugin by
+ *        : Kristian Lyngstøl <[e-mail]>
+ *        : Danny Baumann <[e-mail]>
+ *
+ * Description:
+ *
+ * This plugin allows you to freely transform the texture of a window,
+ * whether that be rotation or scaling to make better use of screen space
+ * or just as a toy.
+ *
+ * Todo:
+ *  - Fully implement an input redirection system by
+ *    finding an inverse matrix, multiplying by it,
+ *    translating to the actual window co-ords and
+ *    XSendEvent() the co-ords to the actual window.
+ *  - Code could be cleaner
+ *  - Add timestep and speed options to animation
+ *  - Add window hover-over info via paintOutput : i.e
+ *    - Resize borders
+ *    - 'Reset' Button
+ *    - 'Scale' Button
+ *    - 'Rotate' Button
+ */
+
+#include "freewins.h"
+
+
+/* ------ Utility Functions ---------------------------------------------*/
+
+/* Rotate and project individual vectors */
+void
+FWScreen::rotateProjectVector (GLVector &vector,
+			       GLMatrix &transform,
+			       GLdouble *resultX,
+			       GLdouble *resultY,
+			       GLdouble *resultZ)
+{
+    vector = transform * vector;
+
+    GLint viewport[4];		// Viewport
+    GLdouble modelview[16];	// Modelview Matrix
+    GLdouble projection[16];	// Projection Matrix
+
+    glGetIntegerv (GL_VIEWPORT, viewport);
+    glGetDoublev (GL_MODELVIEW_MATRIX, modelview);
+    glGetDoublev (GL_PROJECTION_MATRIX, projection);
+
+    gluProject (vector[GLVector::x], vector[GLVector::y], vector[GLVector::z],
+		modelview, projection, viewport,
+		resultX, resultY, resultZ);
+
+    /* Y must be negated */
+    *resultY = screen->height () - *resultY;
+}
+
+/* Scales z by 0 and does perspective distortion so that it
+ * looks the same wherever on the screen
+ *
+ * This code taken from animation.c,
+ * Copyright (c) 2006 Erkin Bahceci
+ */
+void
+FWScreen::perspectiveDistortAndResetZ (GLMatrix &transform)
+{
+    float v = -1.0 / ::screen->width ();
+    /*
+      This does
+      transform = M * transform, where M is
+      1, 0, 0, 0,
+      0, 1, 0, 0,
+      0, 0, 0, v,
+      0, 0, 0, 1
+    */
+
+    transform[8] = v * transform[12];
+    transform[9] = v * transform[13];
+    transform[10] = v * transform[14];
+    transform[11] = v * transform[15];
+}
+
+void
+FWScreen::modifyMatrix  (GLMatrix &transform,
+			 float angX, float angY, float angZ,
+			 float tX, float tY, float tZ,
+			 float scX, float scY, float scZ,
+			 float adjustX, float adjustY, bool paint)
+{
+    /* Create our transformation Matrix */
+    transform.translate (tX, tY, 0.0);
+    if (paint)
+	perspectiveDistortAndResetZ (transform);
+    else
+	transform.scale (1.0f, 1.0f, 1.0f / screen->width ());
+    transform.rotate (angX, 1.0f, 0.0f, 0.0f);
+    transform.rotate (angY, 0.0f, 1.0f, 0.0f);
+    transform.rotate (angZ, 0.0f, 0.0f, 1.0f);
+    transform.scale (scX, 1.0f, 0.0f);
+    transform.scale (1.0f, scY, 0.0f);
+    transform.translate (-(tX), -(tY), 0.0f);
+}
+
+/*
+static float det3(float m00, float m01, float m02,
+		 float m10, float m11, float m12,
+		 float m20, float m21, float m22)
+{
+    float ret = 0.0;
+
+    ret += m00 * m11 * m22 - m21 * m12 * m00;
+    ret += m01 * m12 * m20 - m22 * m10 * m01;
+    ret += m02 * m10 * m21 - m20 * m11 * m02;
+
+    return ret;
+}
+
+static void FWFindInverseMatrix(CompTransform *m, CompTransform *r)
+{
+    float *mm = m->m;
+    float d, c[16];
+
+    d = mm[0] * det3(mm[5], mm[6], mm[7],
+			mm[9], mm[10], mm[11],
+			 mm[13], mm[14], mm[15]) -
+
+	  mm[1] * det3(mm[4], mm[6], mm[7],
+			mm[8], mm[10], mm[11],
+			 mm[12], mm[14], mm[15]) +
+
+	  mm[2] * det3(mm[4], mm[5], mm[7],
+			mm[8], mm[9], mm[11],
+			 mm[12], mm[13], mm[15]) -
+
+	  mm[3] * det3(mm[4], mm[5], mm[6],
+			mm[8], mm[9], mm[10],
+			 mm[12], mm[13], mm[14]);
+
+    c[0] = det3(mm[5], mm[6], mm[7],
+		  mm[9], mm[10], mm[11],
+		  mm[13], mm[14], mm[15]);
+    c[1] = -det3(mm[4], mm[6], mm[7],
+		  mm[8], mm[10], mm[11],
+		  mm[12], mm[14], mm[15]);
+    c[2] = det3(mm[4], mm[5], mm[7],
+		  mm[8], mm[9], mm[11],
+		  mm[12], mm[13], mm[15]);
+    c[3] = -det3(mm[4], mm[5], mm[6],
+		  mm[8], mm[9], mm[10],
+		  mm[12], mm[13], mm[14]);
+
+    c[4] = -det3(mm[1], mm[2], mm[3],
+		  mm[9], mm[10], mm[11],
+		  mm[13], mm[14], mm[15]);
+    c[5] = det3(mm[0], mm[2], mm[3],
+		  mm[8], mm[10], mm[11],
+		  mm[12], mm[14], mm[15]);
+    c[6] = -det3(mm[0], mm[1], mm[3],
+		  mm[8], mm[9], mm[11],
+		  mm[12], mm[13], mm[15]);
+    c[7] = det3(mm[0], mm[1], mm[2],
+		  mm[8], mm[9], mm[10],
+		  mm[12], mm[13], mm[14]);
+
+    c[8] = det3(mm[1], mm[2], mm[3],
+		  mm[5], mm[6], mm[7],
+		  mm[13], mm[14], mm[15]);
+    c[9] = -det3(mm[0], mm[2], mm[3],
+		  mm[4], mm[6], mm[7],
+		  mm[12], mm[14], mm[15]);
+    c[10] = det3(mm[0], mm[1], mm[3],
+		  mm[4], mm[5], mm[7],
+		  mm[12], mm[13], mm[15]);
+    c[11] = -det3(mm[0], mm[1], mm[2],
+		  mm[4], mm[5], mm[6],
+		  mm[12], mm[13], mm[14]);
+
+    c[12] = -det3(mm[1], mm[2], mm[3],
+		  mm[5], mm[6], mm[7],
+		  mm[9], mm[10], mm[11]);
+    c[13] = det3(mm[0], mm[2], mm[3],
+		  mm[4], mm[6], mm[7],
+		  mm[8], mm[10], mm[11]);
+    c[14] = -det3(mm[0], mm[1], mm[3],
+		  mm[4], mm[5], mm[7],
+		  mm[8], mm[9], mm[11]);
+    c[15] = det3(mm[0], mm[1], mm[2],
+		  mm[4], mm[5], mm[6],
+		  mm[8], mm[9], mm[10]);
+
+    r->m[0] = c[0] / d;
+    r->m[1] = c[4] / d;
+    r->m[2] = c[8] / d;
+    r->m[3] = c[12] / d;
+
+    r->m[4] = c[1] / d;
+    r->m[5] = c[5] / d;
+    r->m[6] = c[9] / d;
+    r->m[7] = c[13] / d;
+
+    r->m[8] = c[2] / d;
+    r->m[9] = c[6] / d;
+    r->m[10] = c[10] / d;
+    r->m[11] = c[14] / d;
+
+    r->m[12] = c[3] / d;
+    r->m[13] = c[7] / d;
+    r->m[14] = c[11] / d;
+    r->m[15] = c[15] / d;
+
+    return;
+}
+*/
+
+/* Create a rect from 4 screen points */
+CompRect
+FWScreen::createSizedRect (float xScreen1,
+			   float xScreen2,
+			   float xScreen3,
+			   float xScreen4,
+			   float yScreen1,
+			   float yScreen2,
+			   float yScreen3,
+			   float yScreen4)
+{
+    /* Left most point */
+    float leftmost = xScreen1;
+
+    if (xScreen2 <= leftmost)
+	leftmost = xScreen2;
+
+    if (xScreen3 <= leftmost)
+	leftmost = xScreen3;
+
+    if (xScreen4 <= leftmost)
+	leftmost = xScreen4;
+
+    /* Right most point */
+    float rightmost = xScreen1;
+
+    if (xScreen2 >= rightmost)
+	rightmost = xScreen2;
+
+    if (xScreen3 >= rightmost)
+	rightmost = xScreen3;
+
+    if (xScreen4 >= rightmost)
+	rightmost = xScreen4;
+
+    /* Top most point */
+    float topmost = yScreen1;
+
+    if (yScreen2 <= topmost)
+	topmost = yScreen2;
+
+    if (yScreen3 <= topmost)
+	topmost = yScreen3;
+
+    if (yScreen4 <= topmost)
+	topmost = yScreen4;
+
+    /* Bottom most point */
+    float bottommost = yScreen1;
+
+    if (yScreen2 >= bottommost)
+	bottommost = yScreen2;
+
+    if (yScreen3 >= bottommost)
+	bottommost = yScreen3;
+
+    if (yScreen4 >= bottommost)
+	bottommost = yScreen4;
+/*
+    Box rect;
+    rect.x1 = leftmost;
+    rect.x2 = rightmost;
+    rect.y1 = topmost;
+    rect.y2 = bottommost;
+*/
+    return CompRect (leftmost, topmost, rightmost - leftmost, bottommost - topmost);
+}
+
+CompRect
+FWWindow::calculateWindowRect (GLVector c1,
+			       GLVector c2,
+			       GLVector c3,
+			       GLVector c4)
+{
+    FREEWINS_SCREEN (screen);
+
+    GLMatrix transform;
+    GLdouble xScreen1 = 0.0f, yScreen1 = 0.0f, zScreen1 = 0.0f;
+    GLdouble xScreen2 = 0.0f, yScreen2 = 0.0f, zScreen2 = 0.0f;
+    GLdouble xScreen3 = 0.0f, yScreen3 = 0.0f, zScreen3 = 0.0f;
+    GLdouble xScreen4 = 0.0f, yScreen4 = 0.0f, zScreen4 = 0.0f;
+
+    transform.reset ();
+    fws->modifyMatrix (transform,
+		       mTransform.angX,
+		       mTransform.angY,
+		       mTransform.angZ,
+		       mIMidX, mIMidY, 0.0f,
+		       mTransform.scaleX,
+		       mTransform.scaleY, 0.0f, 0.0f, 0.0f, false);
+
+    fws->rotateProjectVector(c1, transform, &xScreen1, &yScreen1, &zScreen1);
+    fws->rotateProjectVector(c2, transform, &xScreen2, &yScreen2, &zScreen2);
+    fws->rotateProjectVector(c3, transform, &xScreen3, &yScreen3, &zScreen3);
+    fws->rotateProjectVector(c4, transform, &xScreen4, &yScreen4, &zScreen4);
+
+    /* Save the non-rectangular points so that we can shape the rectangular IPW */
+
+    mOutput.shapex1 = xScreen1;
+    mOutput.shapex2 = xScreen2;
+    mOutput.shapex3 = xScreen3;
+    mOutput.shapex4 = xScreen4;
+    mOutput.shapey1 = yScreen1;
+    mOutput.shapey2 = yScreen2;
+    mOutput.shapey3 = yScreen3;
+    mOutput.shapey4 = yScreen4;
+
+
+    return fws->createSizedRect(xScreen1, xScreen2, xScreen3, xScreen4,
+				yScreen1, yScreen2, yScreen3, yScreen4);
+}
+
+void
+FWWindow::calculateOutputRect ()
+{
+    GLVector corner1 = GLVector (WIN_OUTPUT_X (window), WIN_OUTPUT_Y (window), 1.0f, 1.0f);
+    GLVector corner2 = GLVector (WIN_OUTPUT_X (window) + WIN_OUTPUT_W (window), WIN_OUTPUT_Y (window), 1.0f, 1.0f);
+    GLVector corner3 = GLVector (WIN_OUTPUT_X (window), WIN_OUTPUT_Y (window) + WIN_OUTPUT_H (window), 1.0f, 1.0f);
+    GLVector corner4 = GLVector (WIN_OUTPUT_X (window) + WIN_OUTPUT_W (window), WIN_OUTPUT_Y (window) + WIN_OUTPUT_H (window), 1.0f, 1.0f);
+
+    mOutputRect = calculateWindowRect (corner1, corner2, corner3, corner4);
+}
+
+void
+FWWindow::calculateInputRect ()
+{
+    GLVector corner1 = GLVector (WIN_REAL_X (window), WIN_REAL_Y (window), 1.0f, 1.0f);
+    GLVector corner2 = GLVector (WIN_REAL_X (window) + WIN_REAL_W (window), WIN_REAL_Y (window), 1.0f, 1.0f);
+    GLVector corner3 = GLVector (WIN_REAL_X (window), WIN_REAL_Y (window) + WIN_REAL_H (window), 1.0f, 1.0f);
+    GLVector corner4 = GLVector (WIN_REAL_X (window) + WIN_REAL_W (window), WIN_REAL_Y (window) + WIN_REAL_H (window), 1.0f, 1.0f);
+
+    mInputRect = calculateWindowRect (corner1, corner2, corner3, corner4);
+}
+
+void
+FWWindow::calculateInputOrigin (float x, float y)
+{
+    mIMidX = x;
+    mIMidY = y;
+}
+
+void
+FWWindow::calculateOutputOrigin (float x, float y)
+{
+    float dx, dy;
+
+    dx = x - WIN_OUTPUT_X (window);
+    dy = y - WIN_OUTPUT_Y (window);
+
+    mOMidX = WIN_OUTPUT_X (window) + dx * mTransform.scaleX;
+    mOMidY = WIN_OUTPUT_Y (window) + dy * mTransform.scaleY;
+}
+
+/* Change angles more than 360 into angles out of 360 */
+/*static int FWMakeIntoOutOfThreeSixty (int value)
+{
+    while (value > 0)
+    {
+	value -= 360;
+    }
+
+    if (value < 0)
+	value += 360;
+
+    return value;
+}*/
+
+/* Determine if we clicked in the z-axis region */
+void
+FWWindow::determineZAxisClick (int px,
+			       int py,
+			       bool motion)
+{
+    bool directionChange = FALSE;
+
+    if (!mCan2D && motion)
+    {
+
+	static int steps;
+
+	/* Check if we are going in a particular 3D direction
+	 * because if we are going left/right and we suddenly
+	 * change to 2D mode this would not be expected behaviour.
+	 * It is only if we have a change in direction that we want
+	 * to change to 2D rotation.
+	 */
+
+	Direction direction, oldDirection = LeftRight;
+
+	static int ddx, ddy;
+
+	unsigned int dx = pointerX - lastPointerX;
+	unsigned int dy = pointerY - lastPointerY;
+
+	ddx += dx;
+	ddy += dy;
+
+	if (steps >= 10)
+	{
+	    if (ddx > ddy)
+		direction = LeftRight;
+	    else
+		direction = UpDown;
+
+	    if (direction != oldDirection)
+		directionChange = TRUE;
+
+	    direction = oldDirection;
+	}
+
+	steps++;
+
+    }
+    else
+	directionChange = TRUE;
+
+    if (directionChange)
+    {
+	float clickRadiusFromCenter;
+
+	int x = (WIN_REAL_X(window) + WIN_REAL_W(window)/2.0);
+	int y = (WIN_REAL_Y(window) + WIN_REAL_H(window)/2.0);
+
+	clickRadiusFromCenter = sqrt(pow((x - px), 2) + pow((y - py), 2));
+
+	if (clickRadiusFromCenter > mRadius * (FWScreen::get (screen)->optionGetTdPercent () / 100))
+	{
+	    mCan2D = TRUE;
+	    mCan3D = FALSE;
+	}
+	else
+	{
+	    mCan2D = FALSE;
+	    mCan3D = TRUE;
+	}
+    }
+}
+
+/* Check to see if we can shape a window */
+bool
+FWWindow::canShape ()
+{
+    FREEWINS_SCREEN (screen);
+
+    if (!fws->optionGetDoShapeInput ())
+	return FALSE;
+    
+    if (!screen->XShape ())
+	return FALSE;
+    
+    if (!fws->optionGetShapeWindowTypes ().evaluate (window))
+	return FALSE;
+    
+    return TRUE;
+}
+
+/* Checks if w is a ipw and returns the real window */
+CompWindow *
+FWScreen::getRealWindow (CompWindow *w)
+{
+    FWWindowInputInfo *info;
+
+    foreach (info, mTransformedWindows)
+    {
+	if (w->id () == info->ipw)
+	    return info->w;
+    }
+
+    return NULL;
+}
+
+void
+FWWindow::handleSnap ()
+{
+    FREEWINS_SCREEN (screen);
+    
+    /* Handle Snapping */
+    if (fws->optionGetSnap () || fws->mSnap)
+    {
+	int snapFactor = fws->optionGetSnapThreshold ();
+	mAnimate.destAngX = ((int) (mTransform.unsnapAngX) / snapFactor) * snapFactor;
+	mAnimate.destAngY = ((int) (mTransform.unsnapAngY) / snapFactor) * snapFactor;
+	mAnimate.destAngZ = ((int) (mTransform.unsnapAngZ) / snapFactor) * snapFactor;
+	mTransform.scaleX =
+		((float) ( (int) (mTransform.unsnapScaleX * (21 - snapFactor) + 0.5))) / (21 - snapFactor);
+	mTransform.scaleY =
+		((float) ( (int) (mTransform.unsnapScaleY * (21 - snapFactor) + 0.5))) / (21 - snapFactor);
+    }
+}