Commit Graph

8 Commits

Author SHA1 Message Date
Owen W. Taylor
0477a3066d Refactor "texture material" creation from MetaShadowFactory
Create new cogl-utils.[ch] and move a helper function from
MetaShadowFactory there as meta_create_texture_material(); this
allows us to create single-layer materials from different parts of
Mutter and have them share the same template material.

Also expose a function for creating a 1x1 texture of a given
color meta_create_color_texture_4ub().

https://bugzilla.gnome.org/show_bug.cgi?id=634833
2010-11-18 13:58:37 -05:00
Owen W. Taylor
ca5f2ac3ec Implement more accurate clipping of obscured shadows
Instead of making optimizing obscured shadows an all-or-none operation,
pass the clip region to meta_shadow_paint() and only paint the 9-slices
that are at least partially visible.

https://bugzilla.gnome.org/show_bug.cgi?id=592382
2010-11-18 09:47:58 -05:00
Owen W. Taylor
21a246eb42 Use a template material for shadows
To avoid unnecessary shader recompilation, use a root template material
for all shadows.

https://bugzilla.gnome.org/show_bug.cgi?id=592382
2010-11-18 09:47:58 -05:00
Owen W. Taylor
1bbaec81ce Make window shadows globally configurable
Instead of setting shadow parameters on individual windows, add the
idea of a "shadow class". Windows have default shadow classes based
on their frame and window type, which can be overriden by setting
the shadow-class property.

Each shadow class has separably configurable parameters for the
focused and unfocused state. New shadow classes can be defined with
arbitrary names.

https://bugzilla.gnome.org/show_bug.cgi?id=592382
2010-11-18 09:47:58 -05:00
Owen W. Taylor
3c4d52732e Make MetaShadowFactory public
The basic MetaShadowFactory type is moved to a public header, while
the functions to fetch and paint shadows are kept private.
The public object will be used for configuration of shadows by
plugins.

https://bugzilla.gnome.org/show_bug.cgi?id=592382
2010-11-18 09:47:57 -05:00
Owen W. Taylor
d56d267f7d MetaShadowFactory: convert to a GObject
https://bugzilla.gnome.org/show_bug.cgi?id=592382
2010-11-18 09:47:57 -05:00
Owen W. Taylor
8eb31944a5 MetaShadowFactory: Add the ability to top-fade a shadow
For attached modal dialogs, we want the shadow to fade out at the top
as if the window was glued to the parent at the top. Add a
shadow-top-fade property to MetaWindowActor and the corresponding
parameter to meta_shadow_factory_get_shadow().

The internal implementation of MetaShadow is adjusted to work
in terms of an "inner border" and "outer border" instead of doing
the calculations in terms of an aggregate border and the spread
of the shadow. The old way of doing things gets clumsy when the
top_fade distance is added in as well.

https://bugzilla.gnome.org/show_bug.cgi?id=592382
2010-11-18 09:47:57 -05:00
Owen W. Taylor
9f4942e9a7 Make shadows pretty and configurable
The current shadow code just uses a single fixed texture (the Gaussian
blur of a rectangle with a fixed blur radius) for drawing all window
shadows. This patch adds the ability

* Implement efficient blurring of arbitrary regions by approximating
  a Gaussian blur with multiple box blurs.

* Detect when multiple windows can use the same shadow texture by
  converting their shape into a size-invariant MetaWindowShape.

* Add properties shadow-radius, shadow-x-offset, shadow-y-offset,
  shadow-opacity to allow the shadow for a window to be configured.

* Add meta_window_actor_paint() and draw the shadow directly
  from there rather than using a child actor.

* Remove TidyTextureFrame, which is no longer used

https://bugzilla.gnome.org/show_bug.cgi?id=592382
2010-11-18 09:47:56 -05:00