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Add setting for greyscale
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@ -155,6 +155,10 @@
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<summary>Attach modal dialogs</summary>
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<summary>Attach modal dialogs</summary>
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<description>When true, instead of having independent titlebars, modal dialogs appear attached to the titlebar of the parent window and are moved together with the parent window.</description>
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<description>When true, instead of having independent titlebars, modal dialogs appear attached to the titlebar of the parent window and are moved together with the parent window.</description>
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</key>
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</key>
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<key type="b" name="greyscale">
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<default>false</default>
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<summary>If the display should be greyscale</summary>
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</key>
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<key type="s" name="button-layout">
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<key type="s" name="button-layout">
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<default>'close:maximize'</default>
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<default>'close:maximize'</default>
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<summary>Arrangement of buttons on the titlebar</summary>
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<summary>Arrangement of buttons on the titlebar</summary>
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@ -74,6 +74,7 @@ namespace Gala
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public bool attach_modal_dialogs { get; set; }
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public bool attach_modal_dialogs { get; set; }
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public bool dim_parents { get; set; }
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public bool dim_parents { get; set; }
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public string workspace_switcher_background { get; set; }
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public string workspace_switcher_background { get; set; }
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public bool greyscale { get; set; }
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static AppearanceSettings? instance = null;
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static AppearanceSettings? instance = null;
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@ -72,6 +72,8 @@ namespace Gala
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Clutter.Actor? tile_preview;
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Clutter.Actor? tile_preview;
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Clutter.ShaderEffect? greyscale_effect;
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Window? moving; //place for the window that is being moved over
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Window? moving; //place for the window that is being moved over
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Daemon? daemon_proxy = null;
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Daemon? daemon_proxy = null;
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@ -311,6 +313,8 @@ namespace Gala
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update_input_area ();
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update_input_area ();
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stage.show ();
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stage.show ();
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toggle_greyscale ();
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AppearanceSettings.get_default ().notify["greyscale"].connect (toggle_greyscale);
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// let the session manager move to the next phase
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// let the session manager move to the next phase
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Meta.register_with_session ();
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Meta.register_with_session ();
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@ -323,6 +327,33 @@ namespace Gala
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return false;
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return false;
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}
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}
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void toggle_greyscale ()
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{
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if (greyscale_effect == null) {
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greyscale_effect = new Clutter.ShaderEffect (Clutter.ShaderType.FRAGMENT_SHADER);
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greyscale_effect.set_name ("greyscale");
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greyscale_effect.set_shader_source ("""
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uniform sampler2D texture;
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void main () {
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vec4 color = texture2D (texture, cogl_tex_coord0_in.xy);
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float gray = dot(color.rgb, vec3(0.299, 0.587, 0.114));
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cogl_color_out = vec4(vec3(gray), 1.0);
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}
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""");
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greyscale_effect.set_uniform_value ("texture", 0);
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}
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if (AppearanceSettings.get_default ().greyscale) {
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if (ui_group.get_effect ("greyscale") == null) {
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ui_group.add_effect (greyscale_effect);
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}
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} else {
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if (ui_group.get_effect ("greyscale") != null) {
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ui_group.remove_effect (greyscale_effect);
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}
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}
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}
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void configure_hotcorners ()
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void configure_hotcorners ()
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{
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{
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var geometry = get_screen ().get_monitor_geometry (get_screen ().get_primary_monitor ());
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var geometry = get_screen ().get_monitor_geometry (get_screen ().get_primary_monitor ());
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