Adding upstream version 2.10.22.upstream/2.10.22upstream

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

1 files changed, 281 insertions, 0 deletions

diff --git a/app/display/gimpcanvasline.c b/app/display/gimpcanvasline.c
new file mode 100644
index 0000000..38a00c8
--- /dev/null
+++ b/app/display/gimpcanvasline.c
@@ -0,0 +1,281 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcanvasline.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 "gimpcanvasline.h"
+#include "gimpdisplayshell.h"
+
+
+enum
+{
+  PROP_0,
+  PROP_X1,
+  PROP_Y1,
+  PROP_X2,
+  PROP_Y2
+};
+
+
+typedef struct _GimpCanvasLinePrivate GimpCanvasLinePrivate;
+
+struct _GimpCanvasLinePrivate
+{
+  gdouble  x1;
+  gdouble  y1;
+  gdouble  x2;
+  gdouble  y2;
+};
+
+#define GET_PRIVATE(line) \
+        ((GimpCanvasLinePrivate *) gimp_canvas_line_get_instance_private ((GimpCanvasLine *) (line)))
+
+
+/*  local function prototypes  */
+
+static void             gimp_canvas_line_set_property (GObject        *object,
+                                                       guint           property_id,
+                                                       const GValue   *value,
+                                                       GParamSpec     *pspec);
+static void             gimp_canvas_line_get_property (GObject        *object,
+                                                       guint           property_id,
+                                                       GValue         *value,
+                                                       GParamSpec     *pspec);
+static void             gimp_canvas_line_draw         (GimpCanvasItem *item,
+                                                       cairo_t        *cr);
+static cairo_region_t * gimp_canvas_line_get_extents  (GimpCanvasItem *item);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpCanvasLine, gimp_canvas_line,
+                            GIMP_TYPE_CANVAS_ITEM)
+
+#define parent_class gimp_canvas_line_parent_class
+
+
+static void
+gimp_canvas_line_class_init (GimpCanvasLineClass *klass)
+{
+  GObjectClass        *object_class = G_OBJECT_CLASS (klass);
+  GimpCanvasItemClass *item_class   = GIMP_CANVAS_ITEM_CLASS (klass);
+
+  object_class->set_property = gimp_canvas_line_set_property;
+  object_class->get_property = gimp_canvas_line_get_property;
+
+  item_class->draw           = gimp_canvas_line_draw;
+  item_class->get_extents    = gimp_canvas_line_get_extents;
+
+  g_object_class_install_property (object_class, PROP_X1,
+                                   g_param_spec_double ("x1", NULL, NULL,
+                                                        -GIMP_MAX_IMAGE_SIZE,
+                                                        GIMP_MAX_IMAGE_SIZE, 0,
+                                                        GIMP_PARAM_READWRITE));
+
+  g_object_class_install_property (object_class, PROP_Y1,
+                                   g_param_spec_double ("y1", NULL, NULL,
+                                                        -GIMP_MAX_IMAGE_SIZE,
+                                                        GIMP_MAX_IMAGE_SIZE, 0,
+                                                        GIMP_PARAM_READWRITE));
+
+  g_object_class_install_property (object_class, PROP_X2,
+                                   g_param_spec_double ("x2", NULL, NULL,
+                                                        -GIMP_MAX_IMAGE_SIZE,
+                                                        GIMP_MAX_IMAGE_SIZE, 0,
+                                                        GIMP_PARAM_READWRITE));
+
+  g_object_class_install_property (object_class, PROP_Y2,
+                                   g_param_spec_double ("y2", NULL, NULL,
+                                                        -GIMP_MAX_IMAGE_SIZE,
+                                                        GIMP_MAX_IMAGE_SIZE, 0,
+                                                        GIMP_PARAM_READWRITE));
+}
+
+static void
+gimp_canvas_line_init (GimpCanvasLine *line)
+{
+}
+
+static void
+gimp_canvas_line_set_property (GObject      *object,
+                               guint         property_id,
+                               const GValue *value,
+                               GParamSpec   *pspec)
+{
+  GimpCanvasLinePrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_X1:
+      private->x1 = g_value_get_double (value);
+      break;
+    case PROP_Y1:
+      private->y1 = g_value_get_double (value);
+      break;
+    case PROP_X2:
+      private->x2 = g_value_get_double (value);
+      break;
+    case PROP_Y2:
+      private->y2 = g_value_get_double (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_line_get_property (GObject    *object,
+                               guint       property_id,
+                               GValue     *value,
+                               GParamSpec *pspec)
+{
+  GimpCanvasLinePrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_X1:
+      g_value_set_double (value, private->x1);
+      break;
+    case PROP_Y1:
+      g_value_set_double (value, private->y1);
+      break;
+    case PROP_X2:
+      g_value_set_double (value, private->x2);
+      break;
+    case PROP_Y2:
+      g_value_set_double (value, private->y2);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_line_transform (GimpCanvasItem *item,
+                            gdouble        *x1,
+                            gdouble        *y1,
+                            gdouble        *x2,
+                            gdouble        *y2)
+{
+  GimpCanvasLinePrivate *private = GET_PRIVATE (item);
+
+  gimp_canvas_item_transform_xy_f (item,
+                                   private->x1, private->y1,
+                                   x1, y1);
+  gimp_canvas_item_transform_xy_f (item,
+                                   private->x2, private->y2,
+                                   x2, y2);
+
+  *x1 = floor (*x1) + 0.5;
+  *y1 = floor (*y1) + 0.5;
+  *x2 = floor (*x2) + 0.5;
+  *y2 = floor (*y2) + 0.5;
+}
+
+static void
+gimp_canvas_line_draw (GimpCanvasItem *item,
+                       cairo_t        *cr)
+{
+  gdouble x1, y1;
+  gdouble x2, y2;
+
+  gimp_canvas_line_transform (item, &x1, &y1, &x2, &y2);
+
+  cairo_move_to (cr, x1, y1);
+  cairo_line_to (cr, x2, y2);
+
+  _gimp_canvas_item_stroke (item, cr);
+}
+
+static cairo_region_t *
+gimp_canvas_line_get_extents (GimpCanvasItem *item)
+{
+  cairo_rectangle_int_t rectangle;
+  gdouble               x1, y1;
+  gdouble               x2, y2;
+
+  gimp_canvas_line_transform (item, &x1, &y1, &x2, &y2);
+
+  if (x1 == x2 || y1 == y2)
+    {
+      rectangle.x      = MIN (x1, x2) - 1.5;
+      rectangle.y      = MIN (y1, y2) - 1.5;
+      rectangle.width  = ABS (x2 - x1) + 3.0;
+      rectangle.height = ABS (y2 - y1) + 3.0;
+    }
+  else
+    {
+      rectangle.x      = floor (MIN (x1, x2) - 2.5);
+      rectangle.y      = floor (MIN (y1, y2) - 2.5);
+      rectangle.width  = ceil (ABS (x2 - x1) + 5.0);
+      rectangle.height = ceil (ABS (y2 - y1) + 5.0);
+    }
+
+  return cairo_region_create_rectangle (&rectangle);
+}
+
+GimpCanvasItem *
+gimp_canvas_line_new (GimpDisplayShell *shell,
+                      gdouble           x1,
+                      gdouble           y1,
+                      gdouble           x2,
+                      gdouble           y2)
+{
+  g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+  return g_object_new (GIMP_TYPE_CANVAS_LINE,
+                       "shell", shell,
+                       "x1",    x1,
+                       "y1",    y1,
+                       "x2",    x2,
+                       "y2",    y2,
+                       NULL);
+}
+
+void
+gimp_canvas_line_set (GimpCanvasItem *line,
+                      gdouble         x1,
+                      gdouble         y1,
+                      gdouble         x2,
+                      gdouble         y2)
+{
+  g_return_if_fail (GIMP_IS_CANVAS_LINE (line));
+
+  gimp_canvas_item_begin_change (line);
+
+  g_object_set (line,
+                "x1", x1,
+                "y1", y1,
+                "x2", x2,
+                "y2", y2,
+                NULL);
+
+  gimp_canvas_item_end_change (line);
+}