Adding upstream version 2.10.22.upstream/2.10.22upstream

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

1 files changed, 231 insertions, 0 deletions

diff --git a/app/display/gimpcanvaspen.c b/app/display/gimpcanvaspen.c
new file mode 100644
index 0000000..d0d01f9
--- /dev/null
+++ b/app/display/gimpcanvaspen.c
@@ -0,0 +1,231 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcanvaspen.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 "libgimpcolor/gimpcolor.h"
+#include "libgimpmath/gimpmath.h"
+
+#include "display-types.h"
+
+#include "core/gimpcontext.h"
+#include "core/gimpparamspecs.h"
+
+#include "gimpcanvas-style.h"
+#include "gimpcanvaspen.h"
+#include "gimpdisplayshell.h"
+
+
+enum
+{
+  PROP_0,
+  PROP_COLOR,
+  PROP_WIDTH
+};
+
+
+typedef struct _GimpCanvasPenPrivate GimpCanvasPenPrivate;
+
+struct _GimpCanvasPenPrivate
+{
+  GimpRGB color;
+  gint    width;
+};
+
+#define GET_PRIVATE(pen) \
+        ((GimpCanvasPenPrivate *) gimp_canvas_pen_get_instance_private ((GimpCanvasPen *) (pen)))
+
+
+/*  local function prototypes  */
+
+static void             gimp_canvas_pen_set_property (GObject        *object,
+                                                      guint           property_id,
+                                                      const GValue   *value,
+                                                      GParamSpec     *pspec);
+static void             gimp_canvas_pen_get_property (GObject        *object,
+                                                      guint           property_id,
+                                                      GValue         *value,
+                                                      GParamSpec     *pspec);
+static cairo_region_t * gimp_canvas_pen_get_extents  (GimpCanvasItem *item);
+static void             gimp_canvas_pen_stroke       (GimpCanvasItem *item,
+                                                      cairo_t        *cr);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpCanvasPen, gimp_canvas_pen,
+                            GIMP_TYPE_CANVAS_POLYGON)
+
+#define parent_class gimp_canvas_pen_parent_class
+
+
+static void
+gimp_canvas_pen_class_init (GimpCanvasPenClass *klass)
+{
+  GObjectClass        *object_class = G_OBJECT_CLASS (klass);
+  GimpCanvasItemClass *item_class   = GIMP_CANVAS_ITEM_CLASS (klass);
+
+  object_class->set_property = gimp_canvas_pen_set_property;
+  object_class->get_property = gimp_canvas_pen_get_property;
+
+  item_class->get_extents    = gimp_canvas_pen_get_extents;
+  item_class->stroke         = gimp_canvas_pen_stroke;
+
+  g_object_class_install_property (object_class, PROP_COLOR,
+                                   gimp_param_spec_rgb ("color", NULL, NULL,
+                                                        FALSE, NULL,
+                                                        GIMP_PARAM_READWRITE));
+
+  g_object_class_install_property (object_class, PROP_WIDTH,
+                                   g_param_spec_int ("width", NULL, NULL,
+                                                     1, G_MAXINT, 1,
+                                                     GIMP_PARAM_READWRITE));
+}
+
+static void
+gimp_canvas_pen_init (GimpCanvasPen *pen)
+{
+}
+
+static void
+gimp_canvas_pen_set_property (GObject      *object,
+                              guint         property_id,
+                              const GValue *value,
+                              GParamSpec   *pspec)
+{
+  GimpCanvasPenPrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_COLOR:
+      gimp_value_get_rgb (value, &private->color);
+      break;
+    case PROP_WIDTH:
+      private->width = g_value_get_int (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_pen_get_property (GObject    *object,
+                              guint       property_id,
+                              GValue     *value,
+                              GParamSpec *pspec)
+{
+  GimpCanvasPenPrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_COLOR:
+      gimp_value_set_rgb (value, &private->color);
+      break;
+    case PROP_WIDTH:
+      g_value_set_int (value, private->width);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static cairo_region_t *
+gimp_canvas_pen_get_extents (GimpCanvasItem *item)
+{
+  GimpCanvasPenPrivate *private = GET_PRIVATE (item);
+  cairo_region_t       *region;
+
+  region = GIMP_CANVAS_ITEM_CLASS (parent_class)->get_extents (item);
+
+  if (region)
+    {
+      cairo_rectangle_int_t rectangle;
+
+      cairo_region_get_extents (region, &rectangle);
+
+      rectangle.x      -= ceil (private->width / 2.0);
+      rectangle.y      -= ceil (private->width / 2.0);
+      rectangle.width  += private->width + 1;
+      rectangle.height += private->width + 1;
+
+      cairo_region_union_rectangle (region, &rectangle);
+    }
+
+  return region;
+}
+
+static void
+gimp_canvas_pen_stroke (GimpCanvasItem *item,
+                        cairo_t        *cr)
+{
+  GimpCanvasPenPrivate *private = GET_PRIVATE (item);
+
+  gimp_canvas_set_pen_style (gimp_canvas_item_get_canvas (item), cr,
+                             &private->color, private->width);
+  cairo_stroke (cr);
+}
+
+GimpCanvasItem *
+gimp_canvas_pen_new (GimpDisplayShell  *shell,
+                     const GimpVector2 *points,
+                     gint               n_points,
+                     GimpContext       *context,
+                     GimpActiveColor    color,
+                     gint               width)
+{
+  GimpCanvasItem *item;
+  GimpArray      *array;
+  GimpRGB         rgb;
+
+  g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+  g_return_val_if_fail (points != NULL && n_points > 1, NULL);
+  g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
+
+  array = gimp_array_new ((const guint8 *) points,
+                          n_points * sizeof (GimpVector2), TRUE);
+
+  switch (color)
+    {
+    case GIMP_ACTIVE_COLOR_FOREGROUND:
+      gimp_context_get_foreground (context, &rgb);
+      break;
+
+    case GIMP_ACTIVE_COLOR_BACKGROUND:
+      gimp_context_get_background (context, &rgb);
+      break;
+    }
+
+  item = g_object_new (GIMP_TYPE_CANVAS_PEN,
+                       "shell",  shell,
+                       "points", array,
+                       "color",  &rgb,
+                       "width",  width,
+                       NULL);
+
+  gimp_array_free (array);
+
+  return item;
+}