Commit Graph

13 Commits

Author SHA1 Message Date
4f5d3e00db st: Add StScrollViewFade:fade-edges
Add a new property which controls whether edge areas are excluded
from the effect (the default and current behavior), or not.

https://bugzilla.gnome.org/show_bug.cgi?id=707409
2013-09-04 23:52:18 +02:00
b403845d03 st: Make StScrollViewFade a ClutterShaderEffect
The cogl_shader_XXX and cogl_program_YYY APIs have been deprecated
this cycle, so port to ClutterShaderEffect instead.

https://bugzilla.gnome.org/show_bug.cgi?id=707508
2013-09-04 23:13:30 +02:00
5d275389af scroll-view-fade: Fix [vh]fade_offset property getters
The two were mixed up all along, and nobody noticed ...

https://bugzilla.gnome.org/show_bug.cgi?id=694125
2013-02-18 22:44:23 +01:00
5c439f4e9c scroll-view-fade: Do the offset math in the shader
This doesn't (or shouldn't) change the visual appearance of the fade
effect, but does do all the testing math inside the shader, rather
than on the CPU. This will make fading the offset much easier in
the future.

https://bugzilla.gnome.org/show_bug.cgi?id=689249
2012-11-29 16:17:09 -05:00
b3fea016f1 scroll-view-fade: Put the shader in another file
This doesn't make any changes to the shader outside of adding
a header; it simply makes changes in the future easier to edit.

https://bugzilla.gnome.org/show_bug.cgi?id=689249
2012-11-29 16:17:09 -05:00
fd4d645687 st-scroll-view-fade: Add horizontal fade support
St-scroll-view-fade only allowed adding a fade effect in the vertical
direction; extend it so it can work horizontally too.

https://bugzilla.gnome.org/show_bug.cgi?id=613194
2012-02-28 14:57:58 +01:00
15f881f967 st: Remove custom text direction stuff
Clutter has its own built-in system for managing text directions, like GTK+.
Convert over to use this.

https://bugzilla.gnome.org/show_bug.cgi?id=670034
2012-02-28 08:14:06 -05:00
09fe12d0c1 st-scroll-view-fade: Pass a precomputed fade area to the shader
Instead of doing complex computations in the shader just pass in the correct
fade area (taking padding, scrollbars and rtl into account) and just work
with that in the shader.

That fixes a bug where we would fade the scrollbar when padding is present.

https://bugzilla.gnome.org/show_bug.cgi?id=659159
2011-09-19 18:51:01 +02:00
620330db8f StScrollViewFade: Fix scrollbar size handling
Only skip the areas of the scrollbars when they are invisible
and add take the horizontal scrollbar into account as well
when calculating the faded area.

https://bugzilla.gnome.org/show_bug.cgi?id=651866
2011-06-29 18:48:49 +02:00
43cf60f563 StScrollViewFade: Fix GLSL shader to work on r300 hardware
The number instructions in a shader is limited to 64 on r300 hardware,
the fade shader in StScrollViewFade was ending up using 97 instructions
which is way over the limit.

So refactor the shader to use less instructions by precomputing as many
values as possible outside of the conditionals. The resulting shader
ends up using 34 instructions which is well within the hardware limits.

https://bugzilla.gnome.org/show_bug.cgi?id=644589
2011-03-13 16:29:18 +01:00
63be52e191 scroll-view-fade: Adjust the effect to work in RTL locales
The vertical scrollbar is located on the left in RTL locales, so
pass an additional parameter to the shader which indicates the
locale's text direction.

https://bugzilla.gnome.org/show_bug.cgi?id=643156
2011-02-24 12:30:05 +01:00
07bde8248e StScrollViewFade: Make fade-offset a property rather than a hardcoded constant
https://bugzilla.gnome.org/show_bug.cgi?id=642510
2011-02-16 23:07:13 +01:00
00ba937171 StScrollView: Implement real fade effect
Implement an edge fade effect (top/bottom) using a
ClutterOffscreenEffect subclass, replacing the former
shadow hack.

https://bugzilla.gnome.org/show_bug.cgi?id=639460
2011-01-20 20:53:20 +01:00