Styling

Implemented by: glass-theme

All rendering in InfiniteGlass is controlled by the OpenGL shader code and window properties. These are set up by the current theme. The theme is selected and configured in ~/.config/glass/theme.yml, and is implemented as a single python class that subclasses glass_theme.base.ThemeBase. The arguments in theme.json can override any member variable defined in the theme class. For an example theme, see glass_theme.default.Theme.

Shaders

The shaders to be loaded are specified using three parameters:

shader_path = "resource://glass_theme/shaders"
shaders = ("DEFAULT", "ROOT", "SPLASH", "SPLASH_BACKGROUND")
shader_parts = ("GEOMETRY", "VERTEX", "FRAGMENT")

This will load the listed shaders from the specified path (python pkg_resource or plain file path), by appending the lower case shader and part names to the shader path, e.g. “resource://glass_theme/shaders/splash_background/geometry.glsl”. These glsl files can include other files using the C include syntax, e.g.

#include "resource://glass_theme/shaders/lib/picking.glsl"

In particular, all coordinate handling, SVG rendering and picking (mouse handling) code is available as functions in different glsl files in the “glass_theme/shaders/lib”.

Widgets

Implemented by: glass-widgets

Desktop widgets and window decorations, that is, clickable action buttons, are defined in ~/.config/glass/widgets.yml. They each define a window, typically setting an SVG image as content, and a click action. The click actions are the same ones available when defining keyboard shortcuts.