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feat: Cursors loaded from Gtk display theme. Support for more cursors…
… on Gtk
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| using Gdk; | ||
| using System; | ||
| using Uno.UI.Runtime.Skia; | ||
|
|
||
| namespace Uno.UI.Runtime.Skia.GTK.UI.Core | ||
| { | ||
| internal static class Cursors | ||
| { | ||
| private static Cursor _default; | ||
| public static Cursor Default => _default; | ||
| private static Cursor _crosshair; | ||
| public static Cursor Crosshair => _crosshair; | ||
| private static Cursor _pointer; | ||
| public static Cursor Pointer => _pointer; | ||
| private static Cursor _help; | ||
| public static Cursor Help => _help; | ||
| private static Cursor _text; | ||
| public static Cursor Text => _text; | ||
| private static Cursor _allScroll; | ||
| public static Cursor AllScroll => _allScroll; | ||
| private static Cursor _neswResize; | ||
| public static Cursor NeswResize => _neswResize; | ||
| private static Cursor _nsResize; | ||
| public static Cursor NsResize => _nsResize; | ||
| private static Cursor _nwseResize; | ||
| public static Cursor NwseResize => _nwseResize; | ||
| private static Cursor _ewResize; | ||
| public static Cursor EwResize => _ewResize; | ||
| private static Cursor _notAllowed; | ||
| public static Cursor NotAllowed => _notAllowed; | ||
| private static Cursor _upArrow; | ||
| public static Cursor UpArrow => _upArrow; | ||
| private static Cursor _wait; | ||
| public static Cursor Wait => _wait; | ||
|
|
||
| public static void Reload() | ||
| { | ||
| // Name based on this: https://developer.gnome.org/gdk3/stable/gdk3-Cursors.html#gdk-cursor-new-from-name | ||
| // Fallback based on this list: https://developer.gnome.org/gdk3/stable/gdk3-Cursors.html#GdkCursorType | ||
| Set(ref _default, "default", CursorType.Arrow); | ||
| Set(ref _crosshair, "crosshair", CursorType.Cross); | ||
| Set(ref _pointer, "pointer", CursorType.Hand1); | ||
| Set(ref _help, "help", CursorType.QuestionArrow); | ||
| Set(ref _text, "text", CursorType.Xterm); | ||
| Set(ref _allScroll, "all-scroll", CursorType.Fleur); | ||
| Set(ref _neswResize, "nesw-resize"); | ||
| Set(ref _nsResize, "ns-resize", CursorType.SbVDoubleArrow); | ||
| Set(ref _nwseResize, "nwse-resize"); | ||
| Set(ref _ewResize, "ew-resize", CursorType.SbHDoubleArrow); | ||
| Set(ref _notAllowed, "not-allowed"); | ||
| Set(ref _upArrow, CursorType.SbUpArrow); | ||
| Set(ref _wait, "wait", CursorType.Watch); | ||
| } | ||
|
|
||
| private static void Set(ref Cursor cursor, string name, CursorType fallback = CursorType.Arrow) | ||
| { | ||
| try | ||
| { | ||
| var display = GtkHost.Window.Window.Display; | ||
| if (display != null) | ||
| { | ||
| cursor = new Cursor(display, name); | ||
| // Library funtion returns null if theme does not contain cursor with name. | ||
| if (cursor.Handle != IntPtr.Zero) | ||
| { | ||
| return; | ||
| } | ||
| } | ||
| } | ||
| catch | ||
| { | ||
| // Fallback cursor should always work, ignore exception. | ||
| } | ||
| cursor = new Cursor(fallback); | ||
| } | ||
|
|
||
| private static void Set(ref Cursor cursor, CursorType type) | ||
| { | ||
| cursor = new Cursor(type); | ||
| } | ||
| } | ||
| } |