new functions for setting WM hints

Thu Feb 26 22:36:46 1998  Owen Taylor  <owt1@cornell.edu>

	* gdk/gdkwindow.c gdktypes.c gdk.h:
	new functions for setting WM hints

	 gdk_window_set_icon()
	 gdk_window_set_icon_name()
	 gdk_window_set_group()
	 gdk_window_set_decorations()
	 gdk_window_set_functions()

	* gdk/MwmUtil.h: new uninstalled header file from lesstif
	distribution, used for setting MWM hints.

	* gdk/gdkdnd.c Makefile.am: renamed from gdk/gdk_dnd.c

1 files changed, 138 insertions, 0 deletions

diff --git a/gdk/gdkdnd.c b/gdk/gdkdnd.c
new file mode 100644
index 000000000..4f38fd94f
--- /dev/null
+++ b/gdk/gdkdnd.c
@@ -0,0 +1,138 @@
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <string.h>
+#include "gdkx.h"
+#include "gdk.h"
+
+/* Nothing much here now, but we have to make a start some time ;-) */
+
+void
+gdk_dnd_set_drag_cursors(GdkCursor *default_cursor, GdkCursor *goahead_cursor)
+{
+  gdk_dnd.c->gdk_cursor_dragdefault =
+    ((GdkCursorPrivate *)default_cursor)->xcursor;
+  gdk_dnd.c->gdk_cursor_dragok = ((GdkCursorPrivate *)goahead_cursor)->xcursor;
+
+  if(gdk_dnd.dnd_grabbed)
+    {
+      if(gdk_dnd.c->drag_pm_default)
+	/* We were displaying pixmaps for the drag */
+	{
+	  gdk_window_hide(gdk_dnd.c->drag_pm_default);
+	  gdk_window_unref(gdk_dnd.c->drag_pm_default);
+	  if(gdk_dnd.c->drag_pm_ok)
+	    {
+	      gdk_window_hide(gdk_dnd.c->drag_pm_ok);
+	      gdk_window_unref(gdk_dnd.c->drag_pm_ok);
+	    }
+	  gdk_dnd.c->drag_pm_default = gdk_dnd.c->drag_pm_ok = NULL;
+	}
+      gdk_dnd_display_drag_cursor(-1, -1,
+				  gdk_dnd.dnd_drag_target?TRUE:FALSE,
+				  TRUE);
+    }
+}
+
+void
+gdk_dnd_set_drag_shape(GdkWindow *default_pixmapwin,
+		       GdkPoint *default_hotspot,
+		       GdkWindow *goahead_pixmapwin,
+		       GdkPoint *goahead_hotspot)
+{
+  g_return_if_fail(default_pixmapwin != NULL);
+
+  if(gdk_dnd.c->drag_pm_default)
+    gdk_window_unref(gdk_dnd.c->drag_pm_default);
+  if(gdk_dnd.c->drag_pm_ok)
+    gdk_window_unref(gdk_dnd.c->drag_pm_ok);
+
+  gdk_dnd.c->drag_pm_ok = NULL;
+
+  gdk_window_ref(default_pixmapwin);
+  gdk_dnd.c->drag_pm_default = default_pixmapwin;
+  gdk_dnd.c->default_hotspot = *default_hotspot;
+  if(goahead_pixmapwin)
+    {
+      gdk_window_ref(goahead_pixmapwin);
+      gdk_dnd.c->drag_pm_ok = goahead_pixmapwin;
+      gdk_dnd.c->ok_hotspot = *goahead_hotspot;
+    }
+
+  if(gdk_dnd.dnd_grabbed)
+    {
+      gdk_dnd_display_drag_cursor(-1, -1,
+				  gdk_dnd.dnd_drag_target?TRUE:FALSE,
+				  TRUE);
+      XChangeActivePointerGrab (gdk_display,
+				ButtonMotionMask |
+				ButtonPressMask |
+				ButtonReleaseMask |
+				EnterWindowMask | LeaveWindowMask,
+				None,
+				CurrentTime);      
+    }
+}
+
+void
+gdk_dnd_display_drag_cursor(gint x, gint y, gboolean drag_ok,
+			    gboolean change_made)
+{
+  if(!gdk_dnd.dnd_grabbed)
+    return;
+
+  if(gdk_dnd.c->drag_pm_default)
+    {
+      /* We're doing pixmaps here... */
+      GdkWindow *mypix, *opix;
+      GdkPoint *myhotspot;
+      gint itmp;
+      Window wtmp;
+
+      if(x == -2 && y == -2) /* Hide the cursors */
+	{
+	  gdk_window_hide(gdk_dnd.c->drag_pm_ok);
+	  gdk_window_hide(gdk_dnd.c->drag_pm_default);
+	  return;
+	}
+
+      if(x == -1 && y == -1) /* We're supposed to find it out for ourselves */
+	XQueryPointer(gdk_display, gdk_root_window,
+		      &wtmp, &wtmp, &x, &y, &itmp, &itmp, &itmp);
+
+      if(drag_ok)
+	{
+	  mypix = gdk_dnd.c->drag_pm_ok;
+	  opix = gdk_dnd.c->drag_pm_default;
+	  myhotspot = &gdk_dnd.c->ok_hotspot;
+	}
+      else
+	{
+	  mypix = gdk_dnd.c->drag_pm_default;
+	  opix = gdk_dnd.c->drag_pm_ok;
+	  myhotspot = &gdk_dnd.c->default_hotspot;
+	}
+      if(change_made)
+	{
+	  gdk_window_hide(opix);
+	  gdk_window_show(mypix); /* There ought to be a way to know if
+				     a window is already mapped etc. */
+	}
+      gdk_window_move(mypix, x - myhotspot->x, y - myhotspot->y);
+    }
+  else if(change_made)
+    {
+      Cursor c;
+      /* Move cursors around */
+      if(drag_ok)
+	c = gdk_dnd.c->gdk_cursor_dragok;
+      else
+	c = gdk_dnd.c->gdk_cursor_dragdefault;
+      XChangeActivePointerGrab (gdk_display,
+				ButtonMotionMask |
+				ButtonPressMask |
+				ButtonReleaseMask |
+				EnterWindowMask | LeaveWindowMask,
+				c,
+				CurrentTime);
+    }
+}