[gtk+] dnd: Add gtk_drag_set_icon_texture()

[Benjamin Otte <otte src gnome org>]

commit 481c6ad99a1b1c10e3384095bd7756451690a2e1
Author: Benjamin Otte <otte redhat com>
Date:   Sat Dec 2 14:28:05 2017 +0100

    dnd: Add gtk_drag_set_icon_texture()

 docs/reference/gtk/gtk4-sections.txt |    1 +
 gtk/gtkdnd.c                         |   32 ++++++++++++++++++++++++++++++++
 gtk/gtkdnd.h                         |    5 +++++
 3 files changed, 38 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index fb52430..00eb3e1 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -5317,6 +5317,7 @@ gtk_drag_begin_with_coordinates
 gtk_drag_cancel
 gtk_drag_set_icon_widget
 gtk_drag_set_icon_surface
+gtk_drag_set_icon_texture
 gtk_drag_set_icon_name
 gtk_drag_set_icon_gicon
 gtk_drag_set_icon_default
diff --git a/gtk/gtkdnd.c b/gtk/gtkdnd.c
index c3e6531..f0364ca 100644
--- a/gtk/gtkdnd.c
+++ b/gtk/gtkdnd.c
@@ -1620,6 +1620,38 @@ gtk_drag_set_icon_surface (GdkDragContext  *context,
 }
 
 /**
+ * gtk_drag_set_icon_texture: (method)
+ * @context: the context for a drag (This must be called
+ *     with a context for the source side of a drag)
+ * @texture: the #GdkTexture to use as icon
+ * @hot_x: the X offset of the hotspot within the icon
+ * @hot_y: the Y offset of the hotspot within the icon
+ *
+ * Sets @texture as the icon for a given drag. GTK+ retains
+ * references for the arguments, and will release them when
+ * they are no longer needed.
+ *
+ * To position the texture relative to the mouse, its top
+ * left will be positioned @hot_x, @hot_y pixels from the
+ * mouse cursor.
+ */
+void
+gtk_drag_set_icon_texture (GdkDragContext *context,
+                           GdkTexture     *texture,
+                           int             hot_x,
+                           int             hot_y)
+{
+  GtkWidget *widget;
+
+  g_return_if_fail (GDK_IS_DRAG_CONTEXT (context));
+  g_return_if_fail (GDK_IS_TEXTURE (texture));
+
+  widget = gtk_image_new_from_texture (texture);
+
+  gtk_drag_set_icon_widget_internal (context, widget, hot_x, hot_y, TRUE);
+}
+
+/**
  * gtk_drag_set_icon_name: (method)
  * @context: the context for a drag (This must be called 
  *     with a context for the source side of a drag)
diff --git a/gtk/gtkdnd.h b/gtk/gtkdnd.h
index 4038ac3..7b75165 100644
--- a/gtk/gtkdnd.h
+++ b/gtk/gtkdnd.h
@@ -80,6 +80,11 @@ void gtk_drag_set_icon_widget (GdkDragContext *context,
 GDK_AVAILABLE_IN_ALL
 void gtk_drag_set_icon_surface(GdkDragContext *context,
                               cairo_surface_t *surface);
+GDK_AVAILABLE_IN_3_94
+void gtk_drag_set_icon_texture(GdkDragContext *context,
+                              GdkTexture     *texture,
+                               int             hot_x,
+                               int             hot_y);
 GDK_AVAILABLE_IN_ALL
 void gtk_drag_set_icon_name   (GdkDragContext *context,
                               const gchar    *icon_name,