Merge lp:~nux-team/nuxplayground/jhodapp into lp:nuxplayground

[Jim Hodapp]

Added a more verbose note to the README that explains why it's imperative to do a make install before running the demos.

[Jay Taoko (jaytaoko)]

+1

review: Approve

[lp:~nux-team/nuxplayground/jhodapp]

14. By Jim Hodapp on 2012-06-21

Added a very simple hello world demo with heavily commented code.

=== modified file 'README'
--- README	2012-05-30 15:58:11 +0000
+++ README	2012-06-21 19:27:22 +0000
@@ -7,6 +7,8 @@
 
 Then go into the src/'demo' directories and run the executable. You may also find all the demos in the bin/ directory where you installed nuxplayground.
 
+NOTE: Some demos will not work unless they are installed to $prefix. In particular, coverflow will segfault because it won't be able to find the cover textures to load.
+
 nuxplayground requires the Nux library to be installed on your system. In case you built and installed a local version of Nux and you want to use it with nuxplayground then you need to set PKG_CONFIG_PATH before you do autogen.sh in nuxplayground.
 
 export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/path/to/the/pkgconfig/files/of/your/local/nux/install

=== modified file 'configure.ac'
--- configure.ac	2012-06-20 00:26:23 +0000
+++ configure.ac	2012-06-21 19:27:22 +0000
@@ -203,6 +203,7 @@
   src/coverflow/Makefile
   src/fbo-test/Makefile
   src/gstreamer-test-src/Makefile
+  src/helloworld/Makefile
   src/radio-button/Makefile
   src/shader-lighting/Makefile
   src/shader-test-src/Makefile

=== modified file 'src/Makefile.am'
--- src/Makefile.am	2012-06-20 00:26:23 +0000
+++ src/Makefile.am	2012-06-21 19:27:22 +0000
@@ -8,6 +8,7 @@
   coverflow \
   fbo-test \
   gstreamer-test-src \
+  helloworld \
   radio-button \
   shader-lighting \
   shader-test-src \

=== added directory 'src/helloworld'
=== added file 'src/helloworld/Makefile.am'
--- src/helloworld/Makefile.am	1970-01-01 00:00:00 +0000
+++ src/helloworld/Makefile.am	2012-06-21 19:27:22 +0000
@@ -0,0 +1,33 @@
+CLEANFILES =
+DISTCLEANFILES =
+EXTRA_DIST =
+
+
+# This tells automake that we want to build binaries, but they shouldn't be
+# installed. For each individual example, add it's binary name here
+
+bin_PROGRAMS = helloworld
+
+
+# We only have to do this AM_ once to affect all the binaries we build from
+# this Makefile
+AM_CPPFLAGS = \
+  -I$(srcdir) \
+  -I$(top_srcdir) \
+  -DPREFIX=\""$(prefix)"\" \
+  -DLIBDIR=\""$(libdir)"\" \
+  -DDATADIR=\""$(datadir)"\" \
+  -DPKGDATADIR=\""$(pkgdatadir)/@NUX_SAMPLES_PACKAGE_VERSION@"\" \
+  -DG_LOG_DOMAIN=\"NuxSamples\" \
+  $(GCC_FLAGS) \
+  $(NUX_SAMPLES_CFLAGS) \
+  $(MAINTAINER_CFLAGS) \
+  -I../common
+
+
+# This is the individual executable build. For every $exe in noinst_PROGRAMS
+# you need a $exe_SOURCES and $exe_LDADD so it builds
+
+
+helloworld_SOURCES = helloworld.cpp
+helloworld_LDADD = $(NUX_SAMPLES_LIBS)

=== added file 'src/helloworld/helloworld.cpp'
--- src/helloworld/helloworld.cpp	1970-01-01 00:00:00 +0000
+++ src/helloworld/helloworld.cpp	2012-06-21 19:27:22 +0000
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2012 Canonical, Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the  Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 3 along with this program.  If not, see
+ * <http://www.gnu.org/licenses/>
+ *
+ * Authored by: Jim Hodapp <[e-mail]>
+ *
+ */
+
+#include <memory>
+
+#include <Nux/Nux.h>
+#include <Nux/HLayout.h>
+#include <Nux/VLayout.h>
+#include <Nux/WindowThread.h>
+#include <Nux/StaticText.h>
+
+nux::Layout* GetTextLayout()
+{
+    // Create a horizontal layout element
+    nux::VLayout *layout = new nux::VLayout(NUX_TRACKER_LOCATION);
+
+    // Create a new StaticText object and set its text
+    nux::StaticText *text = new nux::StaticText("Hello World!", NUX_TRACKER_LOCATION);
+    {
+        // Set some common properties on the text object
+        text->SetFontSize(40);
+        text->SetTextAlignment(nux::StaticText::ALIGN_CENTER);
+        // White text
+        text->SetTextColor(nux::Color(0xFFFFFFFF));
+        // Add the text to the layout
+        layout->AddView(text, 1, nux::MINOR_POSITION_CENTER, nux::MINOR_SIZE_FULL);
+        layout->SetContentDistribution(nux::MAJOR_POSITION_CENTER);
+        layout->SetScaleFactor(1);
+    }
+
+    return layout;
+}
+
+void UserInterfaceInitialization(nux::NThread* thread, void* init_data)
+{
+    // Create a horizontal layout element
+    nux::HLayout *hlayout = new nux::HLayout();
+
+    // Get the text layout which holds the StaticText object and add it to the horizontal layout
+    hlayout->AddLayout(GetTextLayout(), 1, nux::MINOR_POSITION_CENTER, nux::MINOR_SIZE_FULL);
+
+    // Add the layout to the window
+    nux::GetWindowThread()->SetLayout(hlayout);
+
+    // Set the background color of the window to be black
+    nux::ColorLayer background(nux::Color(0x0), false);
+    static_cast<nux::WindowThread*>(thread)->SetWindowBackgroundPaintLayer(&background);
+}
+
+int main(int argc, char **argv)
+{
+    // Initialize Nux subsystem
+    nux::NuxInitialize(0);
+
+    // Create a Window thread
+    std::unique_ptr<nux::WindowThread> wt(nux::CreateGUIThread(
+            "Hello World",
+            500,
+            300,
+            0,
+            &UserInterfaceInitialization,
+            0));
+
+    // Start the main loop
+    wt->Run();
+
+    return 0;
+}