Merge lp:~3v1n0/unity/fading-title into lp:unity

[Marco Trevisan (Treviño)]

Adding a small fade-out effect on Menu to cut the window Title when it's longer than the panel

All this using cairo linear patterns when needed (the pattern is using non-alpha colors until the end margin is reached, then it's faded to transparent).

Example: http://go.3v1n0.net/eivzuo
The fading space can be adjusted setting the variable text_margin.

This fixes #694924.

==================

UPDATED!

Yesterday evening I forgot to push a commit I did that fixed two issues with the current implementation:
 - The title was fading-out too early, and not just when it was reaching the indicator panel
 - If the title was slightly longer (at least a surplus of padding) than the panel menu it wasn't cut

This new commit fixes these issues (here how it looks http://go.3v1n0.net/gEmYbI), sorry but I just forgot to push :(.

[Jason Smith (jassmith)]

+1

review: Approve

=== modified file 'src/PanelMenuView.cpp'
--- src/PanelMenuView.cpp	2011-02-09 17:08:24 +0000
+++ src/PanelMenuView.cpp	2011-02-10 14:37:16 +0000
@@ -403,7 +403,7 @@
   char                 *font_description = NULL;
   GdkScreen            *screen = gdk_screen_get_default ();
   int                   dpi = 0;
-  const int             text_margin = 20;
+  const int             text_margin = 30;
 
   int  x = 0;
   int  y = 0;
@@ -462,9 +462,9 @@
     double startalpha = 1.0 - ((double)text_margin/(double)width);
 
     // Once for the homies that couldn't be here
-    if (text_width >= width)
+    if (x+text_width >= width-1)
     {
-        linpat = cairo_pattern_create_linear (x, y-1, width-x, y-1+text_height);
+        linpat = cairo_pattern_create_linear (x, y-1, width-1, y-1+text_height);
         cairo_pattern_add_color_stop_rgb (linpat, 0, 50/255.0f, 50/255.0f, 45/255.0f);
         cairo_pattern_add_color_stop_rgb (linpat, startalpha, 50/255.0f, 50/255.0f, 45/255.0f);
         cairo_pattern_add_color_stop_rgba (linpat, startalpha, 0, 0.0, 0.0, 0);
@@ -481,9 +481,9 @@
     cairo_stroke (cr);
 
     // Once again for the homies that could
-    if (text_width >= width)
+    if (x+text_width >= width-1)
     {
-        linpat = cairo_pattern_create_linear (x, y, width-x, y+text_height);
+        linpat = cairo_pattern_create_linear (x, y, width-1, y+text_height);
         cairo_pattern_add_color_stop_rgb (linpat, 0, 223/255.0f, 219/255.0f, 210/255.0f);
         cairo_pattern_add_color_stop_rgb (linpat, startalpha, 223/255.0f, 219/255.0f, 210/255.0f);
         cairo_pattern_add_color_stop_rgba (linpat, 1, 0, 0.0, 0.0, 0);