Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 352 insertions, 0 deletions

diff --git a/app/display/gimpcanvaspath.c b/app/display/gimpcanvaspath.c
new file mode 100644
index 0000000..71a001f
--- /dev/null
+++ b/app/display/gimpcanvaspath.c
@@ -0,0 +1,352 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcanvaspath.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/gimpbezierdesc.h"
+#include "core/gimpparamspecs.h"
+
+#include "gimpcanvas-style.h"
+#include "gimpcanvaspath.h"
+#include "gimpdisplayshell.h"
+
+
+enum
+{
+  PROP_0,
+  PROP_PATH,
+  PROP_X,
+  PROP_Y,
+  PROP_FILLED,
+  PROP_PATH_STYLE
+};
+
+
+typedef struct _GimpCanvasPathPrivate GimpCanvasPathPrivate;
+
+struct _GimpCanvasPathPrivate
+{
+  cairo_path_t *path;
+  gdouble       x;
+  gdouble       y;
+  gboolean      filled;
+  GimpPathStyle path_style;
+};
+
+#define GET_PRIVATE(path) \
+        ((GimpCanvasPathPrivate *) gimp_canvas_path_get_instance_private ((GimpCanvasPath *) (path)))
+
+/*  local function prototypes  */
+
+static void             gimp_canvas_path_finalize     (GObject        *object);
+static void             gimp_canvas_path_set_property (GObject        *object,
+                                                       guint           property_id,
+                                                       const GValue   *value,
+                                                       GParamSpec     *pspec);
+static void             gimp_canvas_path_get_property (GObject        *object,
+                                                       guint           property_id,
+                                                       GValue         *value,
+                                                       GParamSpec     *pspec);
+static void             gimp_canvas_path_draw         (GimpCanvasItem *item,
+                                                       cairo_t        *cr);
+static cairo_region_t * gimp_canvas_path_get_extents  (GimpCanvasItem *item);
+static void             gimp_canvas_path_stroke       (GimpCanvasItem *item,
+                                                       cairo_t        *cr);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpCanvasPath, gimp_canvas_path,
+                            GIMP_TYPE_CANVAS_ITEM)
+
+#define parent_class gimp_canvas_path_parent_class
+
+
+static void
+gimp_canvas_path_class_init (GimpCanvasPathClass *klass)
+{
+  GObjectClass        *object_class = G_OBJECT_CLASS (klass);
+  GimpCanvasItemClass *item_class   = GIMP_CANVAS_ITEM_CLASS (klass);
+
+  object_class->finalize     = gimp_canvas_path_finalize;
+  object_class->set_property = gimp_canvas_path_set_property;
+  object_class->get_property = gimp_canvas_path_get_property;
+
+  item_class->draw           = gimp_canvas_path_draw;
+  item_class->get_extents    = gimp_canvas_path_get_extents;
+  item_class->stroke         = gimp_canvas_path_stroke;
+
+  g_object_class_install_property (object_class, PROP_PATH,
+                                   g_param_spec_boxed ("path", NULL, NULL,
+                                                       GIMP_TYPE_BEZIER_DESC,
+                                                       GIMP_PARAM_READWRITE));
+
+  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));
+
+  g_object_class_install_property (object_class, PROP_FILLED,
+                                   g_param_spec_boolean ("filled", NULL, NULL,
+                                                         FALSE,
+                                                         GIMP_PARAM_READWRITE));
+
+
+  g_object_class_install_property (object_class, PROP_PATH_STYLE,
+                                   g_param_spec_enum ("path-style", NULL, NULL,
+                                                      GIMP_TYPE_PATH_STYLE,
+                                                      GIMP_PATH_STYLE_DEFAULT,
+                                                      GIMP_PARAM_READWRITE));
+}
+
+static void
+gimp_canvas_path_init (GimpCanvasPath *path)
+{
+}
+
+static void
+gimp_canvas_path_finalize (GObject *object)
+{
+  GimpCanvasPathPrivate *private = GET_PRIVATE (object);
+
+  if (private->path)
+    {
+      gimp_bezier_desc_free (private->path);
+      private->path = NULL;
+    }
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_canvas_path_set_property (GObject      *object,
+                               guint         property_id,
+                               const GValue *value,
+                               GParamSpec   *pspec)
+{
+  GimpCanvasPathPrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_PATH:
+      if (private->path)
+        gimp_bezier_desc_free (private->path);
+      private->path = g_value_dup_boxed (value);
+      break;
+    case PROP_X:
+      private->x = g_value_get_double (value);
+      break;
+    case PROP_Y:
+      private->y = g_value_get_double (value);
+      break;
+    case PROP_FILLED:
+      private->filled = g_value_get_boolean (value);
+      break;
+    case PROP_PATH_STYLE:
+      private->path_style = g_value_get_enum (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_path_get_property (GObject    *object,
+                               guint       property_id,
+                               GValue     *value,
+                               GParamSpec *pspec)
+{
+  GimpCanvasPathPrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_PATH:
+      g_value_set_boxed (value, private->path);
+      break;
+    case PROP_X:
+      g_value_set_double (value, private->x);
+      break;
+    case PROP_Y:
+      g_value_set_double (value, private->y);
+      break;
+    case PROP_FILLED:
+      g_value_set_boolean (value, private->filled);
+      break;
+    case PROP_PATH_STYLE:
+      g_value_set_enum (value, private->path_style);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_path_draw (GimpCanvasItem *item,
+                       cairo_t        *cr)
+{
+  GimpCanvasPathPrivate *private = GET_PRIVATE (item);
+
+  if (private->path)
+    {
+      cairo_save (cr);
+      gimp_canvas_item_transform (item, cr);
+      cairo_translate (cr, private->x, private->y);
+
+      cairo_append_path (cr, private->path);
+      cairo_restore (cr);
+
+      if (private->filled)
+        _gimp_canvas_item_fill (item, cr);
+      else
+        _gimp_canvas_item_stroke (item, cr);
+    }
+}
+
+static cairo_region_t *
+gimp_canvas_path_get_extents (GimpCanvasItem *item)
+{
+  GimpCanvasPathPrivate *private = GET_PRIVATE (item);
+  GtkWidget             *canvas  = gimp_canvas_item_get_canvas (item);
+
+  if (private->path && gtk_widget_get_realized (canvas))
+    {
+      cairo_t               *cr;
+      cairo_rectangle_int_t  rectangle;
+      gdouble                x1, y1, x2, y2;
+
+      cr = gdk_cairo_create (gtk_widget_get_window (canvas));
+
+      cairo_save (cr);
+      gimp_canvas_item_transform (item, cr);
+      cairo_translate (cr, private->x, private->y);
+
+      cairo_append_path (cr, private->path);
+      cairo_restore (cr);
+
+      cairo_path_extents (cr, &x1, &y1, &x2, &y2);
+
+      cairo_destroy (cr);
+
+      if (private->filled)
+        {
+          rectangle.x      = floor (x1 - 1.0);
+          rectangle.y      = floor (y1 - 1.0);
+          rectangle.width  = ceil (x2 + 1.0) - rectangle.x;
+          rectangle.height = ceil (y2 + 1.0) - rectangle.y;
+        }
+      else
+        {
+          rectangle.x      = floor (x1 - 1.5);
+          rectangle.y      = floor (y1 - 1.5);
+          rectangle.width  = ceil (x2 + 1.5) - rectangle.x;
+          rectangle.height = ceil (y2 + 1.5) - rectangle.y;
+        }
+
+      return cairo_region_create_rectangle (&rectangle);
+    }
+
+  return NULL;
+}
+
+static void
+gimp_canvas_path_stroke (GimpCanvasItem *item,
+                         cairo_t        *cr)
+{
+  GimpCanvasPathPrivate *private = GET_PRIVATE (item);
+  GtkWidget             *canvas  = gimp_canvas_item_get_canvas (item);
+  gboolean               active;
+
+  switch (private->path_style)
+    {
+    case GIMP_PATH_STYLE_VECTORS:
+      active = gimp_canvas_item_get_highlight (item);
+
+      gimp_canvas_set_vectors_bg_style (canvas, cr, active);
+      cairo_stroke_preserve (cr);
+
+      gimp_canvas_set_vectors_fg_style (canvas, cr, active);
+      cairo_stroke (cr);
+      break;
+
+    case GIMP_PATH_STYLE_OUTLINE:
+      gimp_canvas_set_outline_bg_style (canvas, cr);
+      cairo_stroke_preserve (cr);
+
+      gimp_canvas_set_outline_fg_style (canvas, cr);
+      cairo_stroke (cr);
+      break;
+
+    case GIMP_PATH_STYLE_DEFAULT:
+      GIMP_CANVAS_ITEM_CLASS (parent_class)->stroke (item, cr);
+      break;
+    }
+}
+
+GimpCanvasItem *
+gimp_canvas_path_new (GimpDisplayShell     *shell,
+                      const GimpBezierDesc *bezier,
+                      gdouble               x,
+                      gdouble               y,
+                      gboolean              filled,
+                      GimpPathStyle         style)
+{
+  g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+  return g_object_new (GIMP_TYPE_CANVAS_PATH,
+                       "shell",      shell,
+                       "path",       bezier,
+                       "x",          x,
+                       "y",          y,
+                       "filled",     filled,
+                       "path-style", style,
+                       NULL);
+}
+
+void
+gimp_canvas_path_set (GimpCanvasItem       *path,
+                      const GimpBezierDesc *bezier)
+{
+  g_return_if_fail (GIMP_IS_CANVAS_PATH (path));
+
+  gimp_canvas_item_begin_change (path);
+
+  g_object_set (path,
+                "path", bezier,
+                NULL);
+
+  gimp_canvas_item_end_change (path);
+}