Sync with GtkWorkarounds in XWT

1 files changed, 41 insertions, 0 deletions

diff --git a/main/src/core/Mono.Texteditor/Mono.TextEditor/Gui/GtkWorkarounds.cs b/main/src/core/Mono.Texteditor/Mono.TextEditor/Gui/GtkWorkarounds.cs
index bda3a23761..e171ce405c 100644
--- a/main/src/core/Mono.Texteditor/Mono.TextEditor/Gui/GtkWorkarounds.cs
+++ b/main/src/core/Mono.Texteditor/Mono.TextEditor/Gui/GtkWorkarounds.cs
@@ -1086,9 +1086,15 @@ namespace Mono.TextEditor
 		
 		[DllImport (PangoUtil.LIBGTK)]
 		static extern double gtk_widget_get_scale_factor (IntPtr widget);
+		
+		[DllImport (PangoUtil.LIBGDK)]
+		static extern double gdk_screen_get_monitor_scale_factor (IntPtr widget, int monitor);
 
 		[DllImport (PangoUtil.LIBGOBJECT)]
 		static extern IntPtr g_object_get_data (IntPtr source, string name);
+		
+		[DllImport (PangoUtil.LIBGTK)]
+		static extern IntPtr gtk_icon_set_render_icon_scaled (IntPtr handle, IntPtr style, int direction, int state, int size, IntPtr widget, IntPtr intPtr, ref double scale);
 
 		public static bool SetSourceScale (Gtk.IconSource source, double scale)
 		{
@@ -1155,6 +1161,41 @@ namespace Mono.TextEditor
 			supportsHiResIcons = false;
 			return 1;
 		}
+		
+		public static double GetScaleFactor (this Gdk.Screen screen, int monitor)
+		{
+			if (!supportsHiResIcons)
+				return 1;
+
+			try {
+				return gdk_screen_get_monitor_scale_factor (screen.Handle, monitor);
+			} catch (DllNotFoundException) {
+			} catch (EntryPointNotFoundException) {
+			}
+			supportsHiResIcons = false;
+			return 1;
+		}
+		
+		public static Gdk.Pixbuf RenderIcon (this Gtk.IconSet iconset, Gtk.Style style, Gtk.TextDirection direction, Gtk.StateType state, Gtk.IconSize size, Gtk.Widget widget, string detail, double scale)
+		{
+			if (scale == 1d)
+				return iconset.RenderIcon (style, direction, state, size, widget, detail);
+
+			if (!supportsHiResIcons)
+				return null;
+
+			try {
+				IntPtr intPtr = GLib.Marshaller.StringToPtrGStrdup (detail);
+				IntPtr o = gtk_icon_set_render_icon_scaled (iconset.Handle, (style != null) ? style.Handle : IntPtr.Zero, (int)direction, (int)state, (int)size, (widget != null) ? widget.Handle : IntPtr.Zero, intPtr, ref scale);
+				Gdk.Pixbuf result = (Gdk.Pixbuf) GLib.Object.GetObject (o);
+				GLib.Marshaller.Free (intPtr);
+				return result;
+			} catch (DllNotFoundException) {
+			} catch (EntryPointNotFoundException) {
+			}
+			supportsHiResIcons = false;
+			return null;
+		}
 	}
 	
 	public struct KeyboardShortcut : IEquatable<KeyboardShortcut>