From fa26673f493b01ac1d137d2efd0eae5a7329a245 Mon Sep 17 00:00:00 2001
From: Tim Janik <timj@src.gnome.org>
Date: Sat, 28 Feb 1998 17:12:41 +0000
Subject: [PATCH] oops, forgot that, be nice ;) -timj

---
 gdk/gdkregion.c         | 268 ++++++++++++++++++++++++++++++++++++++++
 gdk/x11/gdkregion-x11.c | 268 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 536 insertions(+)
 create mode 100644 gdk/gdkregion.c
 create mode 100644 gdk/x11/gdkregion-x11.c

diff --git a/gdk/gdkregion.c b/gdk/gdkregion.c
new file mode 100644
index 0000000000..50b4b55391
--- /dev/null
+++ b/gdk/gdkregion.c
@@ -0,0 +1,268 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+ 
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include "gdk.h"
+#include "gdkprivate.h"
+
+
+
+
+GdkRegion*
+gdk_region_new (void)
+{
+  GdkRegionPrivate *private;
+  GdkRegion *region;
+  Region xregion;
+
+  xregion = XCreateRegion();
+  private = g_new (GdkRegionPrivate, 1);
+  private->xregion = xregion;
+  region = (GdkRegion*) private;
+  region->user_data = NULL;
+
+  return region;
+}
+
+void
+gdk_region_destroy (GdkRegion *region)
+{
+  GdkRegionPrivate *private;
+
+  g_return_if_fail (region != NULL);
+
+  private = (GdkRegionPrivate *) region;
+  XDestroyRegion (private->xregion);
+
+  g_free (private);
+}
+
+gboolean
+gdk_region_empty (GdkRegion      *region)
+{
+  GdkRegionPrivate *private;
+
+  g_return_val_if_fail (region != NULL, 0);
+
+  private = (GdkRegionPrivate *) region;
+  
+  return XEmptyRegion (private->xregion);
+}
+
+gboolean
+gdk_region_equal (GdkRegion      *region1,
+                  GdkRegion      *region2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+
+  g_return_val_if_fail (region1 != NULL, 0);
+  g_return_val_if_fail (region2 != NULL, 0);
+
+  private1 = (GdkRegionPrivate *) region1;
+  private2 = (GdkRegionPrivate *) region2;
+  
+  return XEqualRegion (private1->xregion, private2->xregion);
+}
+
+gboolean
+gdk_region_point_in (GdkRegion      *region,
+                     gint           x,
+		     gint           y)
+{
+  GdkRegionPrivate *private;
+
+  g_return_val_if_fail (region != NULL, 0);
+
+  private = (GdkRegionPrivate *) region;
+  
+  return XPointInRegion (private->xregion, x, y);
+}
+
+GdkOverlapType
+gdk_region_rect_in (GdkRegion      *region,
+                    GdkRectangle   *rect)
+{
+  GdkRegionPrivate *private;
+  int res;
+
+  g_return_val_if_fail (region != NULL, 0);
+
+  private = (GdkRegionPrivate *) region;
+  
+  res = XRectInRegion (private->xregion, rect->x, rect->y, rect->width, rect->height);
+  
+  switch (res)
+  {
+    case RectangleIn:   return GDK_OVERLAP_RECTANGLE_IN;
+    case RectangleOut:  return GDK_OVERLAP_RECTANGLE_OUT;
+    case RectanglePart: return GDK_OVERLAP_RECTANGLE_PART;
+  }
+  
+  return GDK_OVERLAP_RECTANGLE_OUT;  // what else ?
+}
+				    
+void          
+gdk_region_offset (GdkRegion      *region,
+                   gint           dx,
+		   gint           dy)
+{
+  GdkRegionPrivate *private;
+
+  g_return_if_fail (region != NULL);
+
+  private = (GdkRegionPrivate *) region;
+  
+  XOffsetRegion (private->xregion, dx, dy);
+}
+
+void
+gdk_region_shrink (GdkRegion      *region,
+                   gint           dx,
+		   gint           dy)
+{
+  GdkRegionPrivate *private;
+
+  g_return_if_fail (region != NULL);
+
+  private = (GdkRegionPrivate *) region;
+  
+  XShrinkRegion (private->xregion, dx, dy);
+}
+
+GdkRegion*    
+gdk_region_union_with_rect (GdkRegion      *region,
+                            GdkRectangle   *rect)
+{
+  GdkRegionPrivate *private;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+  XRectangle xrect;
+
+  g_return_val_if_fail (region != NULL, NULL);
+
+  private = (GdkRegionPrivate *) region;
+  
+  xrect.x = rect->x;
+  xrect.y = rect->y;
+  xrect.width = rect->width;
+  xrect.height = rect->height;
+  
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XUnionRectWithRegion (&xrect, private->xregion, res_private->xregion);
+  
+  return res;
+}
+
+GdkRegion*    
+gdk_regions_intersect (GdkRegion      *source1,
+                       GdkRegion      *source2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+
+  g_return_val_if_fail (source1 != NULL, NULL);
+  g_return_val_if_fail (source2 != NULL, NULL);
+
+  private1 = (GdkRegionPrivate *) source1;
+  private2 = (GdkRegionPrivate *) source2;
+
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XIntersectRegion (private1->xregion, private2->xregion, res_private->xregion);
+  
+  return res;
+}
+
+GdkRegion* 
+gdk_regions_union (GdkRegion      *source1,
+                   GdkRegion      *source2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+
+  g_return_val_if_fail (source1 != NULL, NULL);
+  g_return_val_if_fail (source2 != NULL, NULL);
+
+  private1 = (GdkRegionPrivate *) source1;
+  private2 = (GdkRegionPrivate *) source2;
+
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XUnionRegion (private1->xregion, private2->xregion, res_private->xregion);
+  
+  return res;
+}
+
+GdkRegion*    
+gdk_regions_subtract (GdkRegion      *source1,
+                      GdkRegion      *source2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+
+  g_return_val_if_fail (source1 != NULL, NULL);
+  g_return_val_if_fail (source2 != NULL, NULL);
+
+  private1 = (GdkRegionPrivate *) source1;
+  private2 = (GdkRegionPrivate *) source2;
+
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XSubtractRegion (private1->xregion, private2->xregion, res_private->xregion);
+  
+  return res;
+}
+
+GdkRegion*    
+gdk_regions_xor (GdkRegion      *source1,
+                 GdkRegion      *source2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+
+  g_return_val_if_fail (source1 != NULL, NULL);
+  g_return_val_if_fail (source2 != NULL, NULL);
+
+  private1 = (GdkRegionPrivate *) source1;
+  private2 = (GdkRegionPrivate *) source2;
+
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XXorRegion (private1->xregion, private2->xregion, res_private->xregion);
+  
+  return res;
+}
+
+
+
diff --git a/gdk/x11/gdkregion-x11.c b/gdk/x11/gdkregion-x11.c
new file mode 100644
index 0000000000..50b4b55391
--- /dev/null
+++ b/gdk/x11/gdkregion-x11.c
@@ -0,0 +1,268 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+ 
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include "gdk.h"
+#include "gdkprivate.h"
+
+
+
+
+GdkRegion*
+gdk_region_new (void)
+{
+  GdkRegionPrivate *private;
+  GdkRegion *region;
+  Region xregion;
+
+  xregion = XCreateRegion();
+  private = g_new (GdkRegionPrivate, 1);
+  private->xregion = xregion;
+  region = (GdkRegion*) private;
+  region->user_data = NULL;
+
+  return region;
+}
+
+void
+gdk_region_destroy (GdkRegion *region)
+{
+  GdkRegionPrivate *private;
+
+  g_return_if_fail (region != NULL);
+
+  private = (GdkRegionPrivate *) region;
+  XDestroyRegion (private->xregion);
+
+  g_free (private);
+}
+
+gboolean
+gdk_region_empty (GdkRegion      *region)
+{
+  GdkRegionPrivate *private;
+
+  g_return_val_if_fail (region != NULL, 0);
+
+  private = (GdkRegionPrivate *) region;
+  
+  return XEmptyRegion (private->xregion);
+}
+
+gboolean
+gdk_region_equal (GdkRegion      *region1,
+                  GdkRegion      *region2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+
+  g_return_val_if_fail (region1 != NULL, 0);
+  g_return_val_if_fail (region2 != NULL, 0);
+
+  private1 = (GdkRegionPrivate *) region1;
+  private2 = (GdkRegionPrivate *) region2;
+  
+  return XEqualRegion (private1->xregion, private2->xregion);
+}
+
+gboolean
+gdk_region_point_in (GdkRegion      *region,
+                     gint           x,
+		     gint           y)
+{
+  GdkRegionPrivate *private;
+
+  g_return_val_if_fail (region != NULL, 0);
+
+  private = (GdkRegionPrivate *) region;
+  
+  return XPointInRegion (private->xregion, x, y);
+}
+
+GdkOverlapType
+gdk_region_rect_in (GdkRegion      *region,
+                    GdkRectangle   *rect)
+{
+  GdkRegionPrivate *private;
+  int res;
+
+  g_return_val_if_fail (region != NULL, 0);
+
+  private = (GdkRegionPrivate *) region;
+  
+  res = XRectInRegion (private->xregion, rect->x, rect->y, rect->width, rect->height);
+  
+  switch (res)
+  {
+    case RectangleIn:   return GDK_OVERLAP_RECTANGLE_IN;
+    case RectangleOut:  return GDK_OVERLAP_RECTANGLE_OUT;
+    case RectanglePart: return GDK_OVERLAP_RECTANGLE_PART;
+  }
+  
+  return GDK_OVERLAP_RECTANGLE_OUT;  // what else ?
+}
+				    
+void          
+gdk_region_offset (GdkRegion      *region,
+                   gint           dx,
+		   gint           dy)
+{
+  GdkRegionPrivate *private;
+
+  g_return_if_fail (region != NULL);
+
+  private = (GdkRegionPrivate *) region;
+  
+  XOffsetRegion (private->xregion, dx, dy);
+}
+
+void
+gdk_region_shrink (GdkRegion      *region,
+                   gint           dx,
+		   gint           dy)
+{
+  GdkRegionPrivate *private;
+
+  g_return_if_fail (region != NULL);
+
+  private = (GdkRegionPrivate *) region;
+  
+  XShrinkRegion (private->xregion, dx, dy);
+}
+
+GdkRegion*    
+gdk_region_union_with_rect (GdkRegion      *region,
+                            GdkRectangle   *rect)
+{
+  GdkRegionPrivate *private;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+  XRectangle xrect;
+
+  g_return_val_if_fail (region != NULL, NULL);
+
+  private = (GdkRegionPrivate *) region;
+  
+  xrect.x = rect->x;
+  xrect.y = rect->y;
+  xrect.width = rect->width;
+  xrect.height = rect->height;
+  
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XUnionRectWithRegion (&xrect, private->xregion, res_private->xregion);
+  
+  return res;
+}
+
+GdkRegion*    
+gdk_regions_intersect (GdkRegion      *source1,
+                       GdkRegion      *source2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+
+  g_return_val_if_fail (source1 != NULL, NULL);
+  g_return_val_if_fail (source2 != NULL, NULL);
+
+  private1 = (GdkRegionPrivate *) source1;
+  private2 = (GdkRegionPrivate *) source2;
+
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XIntersectRegion (private1->xregion, private2->xregion, res_private->xregion);
+  
+  return res;
+}
+
+GdkRegion* 
+gdk_regions_union (GdkRegion      *source1,
+                   GdkRegion      *source2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+
+  g_return_val_if_fail (source1 != NULL, NULL);
+  g_return_val_if_fail (source2 != NULL, NULL);
+
+  private1 = (GdkRegionPrivate *) source1;
+  private2 = (GdkRegionPrivate *) source2;
+
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XUnionRegion (private1->xregion, private2->xregion, res_private->xregion);
+  
+  return res;
+}
+
+GdkRegion*    
+gdk_regions_subtract (GdkRegion      *source1,
+                      GdkRegion      *source2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+
+  g_return_val_if_fail (source1 != NULL, NULL);
+  g_return_val_if_fail (source2 != NULL, NULL);
+
+  private1 = (GdkRegionPrivate *) source1;
+  private2 = (GdkRegionPrivate *) source2;
+
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XSubtractRegion (private1->xregion, private2->xregion, res_private->xregion);
+  
+  return res;
+}
+
+GdkRegion*    
+gdk_regions_xor (GdkRegion      *source1,
+                 GdkRegion      *source2)
+{
+  GdkRegionPrivate *private1;
+  GdkRegionPrivate *private2;
+  GdkRegion *res;
+  GdkRegionPrivate *res_private;
+
+  g_return_val_if_fail (source1 != NULL, NULL);
+  g_return_val_if_fail (source2 != NULL, NULL);
+
+  private1 = (GdkRegionPrivate *) source1;
+  private2 = (GdkRegionPrivate *) source2;
+
+  res = gdk_region_new ();
+  res_private = (GdkRegionPrivate *) res;
+  
+  XXorRegion (private1->xregion, private2->xregion, res_private->xregion);
+  
+  return res;
+}
+
+
+