Adding upstream version 2.10.22.upstream/2.10.22upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 228 insertions, 0 deletions

diff --git a/app/display/gimpcanvascursor.c b/app/display/gimpcanvascursor.c
new file mode 100644
index 0000000..581fa76
--- /dev/null
+++ b/app/display/gimpcanvascursor.c
@@ -0,0 +1,228 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcanvascursor.c
+ * Copyright (C) 2010 Michael Natterer <mitch@gimp.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpmath/gimpmath.h"
+
+#include "display-types.h"
+
+#include "core/gimp-cairo.h"
+
+#include "gimpcanvascursor.h"
+#include "gimpdisplayshell.h"
+
+
+#define GIMP_CURSOR_SIZE 7
+
+
+enum
+{
+  PROP_0,
+  PROP_X,
+  PROP_Y
+};
+
+
+typedef struct _GimpCanvasCursorPrivate GimpCanvasCursorPrivate;
+
+struct _GimpCanvasCursorPrivate
+{
+  gdouble x;
+  gdouble y;
+};
+
+#define GET_PRIVATE(cursor) \
+        ((GimpCanvasCursorPrivate *) gimp_canvas_cursor_get_instance_private ((GimpCanvasCursor *) (cursor)))
+
+
+/*  local function prototypes  */
+
+static void             gimp_canvas_cursor_set_property (GObject        *object,
+                                                         guint           property_id,
+                                                         const GValue   *value,
+                                                         GParamSpec     *pspec);
+static void             gimp_canvas_cursor_get_property (GObject        *object,
+                                                         guint           property_id,
+                                                         GValue         *value,
+                                                         GParamSpec     *pspec);
+static void             gimp_canvas_cursor_draw         (GimpCanvasItem *item,
+                                                         cairo_t        *cr);
+static cairo_region_t * gimp_canvas_cursor_get_extents  (GimpCanvasItem *item);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpCanvasCursor, gimp_canvas_cursor,
+                            GIMP_TYPE_CANVAS_ITEM)
+
+#define parent_class gimp_canvas_cursor_parent_class
+
+
+static void
+gimp_canvas_cursor_class_init (GimpCanvasCursorClass *klass)
+{
+  GObjectClass        *object_class = G_OBJECT_CLASS (klass);
+  GimpCanvasItemClass *item_class   = GIMP_CANVAS_ITEM_CLASS (klass);
+
+  object_class->set_property = gimp_canvas_cursor_set_property;
+  object_class->get_property = gimp_canvas_cursor_get_property;
+
+  item_class->draw           = gimp_canvas_cursor_draw;
+  item_class->get_extents    = gimp_canvas_cursor_get_extents;
+
+  g_object_class_install_property (object_class, PROP_X,
+                                   g_param_spec_double ("x", NULL, NULL,
+                                                        -GIMP_MAX_IMAGE_SIZE,
+                                                        GIMP_MAX_IMAGE_SIZE, 0,
+                                                        GIMP_PARAM_READWRITE));
+
+  g_object_class_install_property (object_class, PROP_Y,
+                                   g_param_spec_double ("y", NULL, NULL,
+                                                        -GIMP_MAX_IMAGE_SIZE,
+                                                        GIMP_MAX_IMAGE_SIZE, 0,
+                                                        GIMP_PARAM_READWRITE));
+}
+
+static void
+gimp_canvas_cursor_init (GimpCanvasCursor *cursor)
+{
+  gimp_canvas_item_set_line_cap (GIMP_CANVAS_ITEM (cursor),
+                                 CAIRO_LINE_CAP_SQUARE);
+}
+
+static void
+gimp_canvas_cursor_set_property (GObject      *object,
+                                 guint         property_id,
+                                 const GValue *value,
+                                 GParamSpec   *pspec)
+{
+  GimpCanvasCursorPrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_X:
+      private->x = g_value_get_double (value);
+      break;
+    case PROP_Y:
+      private->y = g_value_get_double (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_cursor_get_property (GObject    *object,
+                                 guint       property_id,
+                                 GValue     *value,
+                                 GParamSpec *pspec)
+{
+  GimpCanvasCursorPrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_X:
+      g_value_set_double (value, private->x);
+      break;
+    case PROP_Y:
+      g_value_set_double (value, private->y);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_cursor_draw (GimpCanvasItem *item,
+                         cairo_t        *cr)
+{
+  GimpCanvasCursorPrivate *private = GET_PRIVATE (item);
+  gdouble                  x, y;
+
+  x = floor (private->x) + 0.5;
+  y = floor (private->y) + 0.5;
+
+  cairo_move_to (cr, x - GIMP_CURSOR_SIZE, y);
+  cairo_line_to (cr, x + GIMP_CURSOR_SIZE, y);
+
+  cairo_move_to (cr, x, y - GIMP_CURSOR_SIZE);
+  cairo_line_to (cr, x, y + GIMP_CURSOR_SIZE);
+
+  _gimp_canvas_item_stroke (item, cr);
+}
+
+static cairo_region_t *
+gimp_canvas_cursor_get_extents (GimpCanvasItem *item)
+{
+  GimpCanvasCursorPrivate *private = GET_PRIVATE (item);
+  cairo_rectangle_int_t    rectangle;
+  gdouble                  x, y;
+
+  x = floor (private->x) + 0.5;
+  y = floor (private->y) + 0.5;
+
+  rectangle.x      = floor (x - GIMP_CURSOR_SIZE - 1.5);
+  rectangle.y      = floor (y - GIMP_CURSOR_SIZE - 1.5);
+  rectangle.width  = ceil (x + GIMP_CURSOR_SIZE + 1.5) - rectangle.x;
+  rectangle.height = ceil (y + GIMP_CURSOR_SIZE + 1.5) - rectangle.y;
+
+  return cairo_region_create_rectangle (&rectangle);
+}
+
+GimpCanvasItem *
+gimp_canvas_cursor_new (GimpDisplayShell *shell)
+{
+  g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+  return g_object_new (GIMP_TYPE_CANVAS_CURSOR,
+                       "shell", shell,
+                       NULL);
+}
+
+void
+gimp_canvas_cursor_set (GimpCanvasItem *cursor,
+                        gdouble         x,
+                        gdouble         y)
+{
+  GimpCanvasCursorPrivate *private;
+
+  g_return_if_fail (GIMP_IS_CANVAS_CURSOR (cursor));
+
+  private = GET_PRIVATE (cursor);
+
+  if (private->x != x || private->y != y)
+    {
+      gimp_canvas_item_begin_change (cursor);
+
+      g_object_set (cursor,
+                    "x", x,
+                    "y", y,
+                    NULL);
+
+      gimp_canvas_item_end_change (cursor);
+    }
+}