Adding upstream version 2.10.22.upstream/2.10.22upstream

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

1 files changed, 295 insertions, 0 deletions

diff --git a/app/display/gimpcanvasguide.c b/app/display/gimpcanvasguide.c
new file mode 100644
index 0000000..5712633
--- /dev/null
+++ b/app/display/gimpcanvasguide.c
@@ -0,0 +1,295 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcanvasguide.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 "gimpcanvas-style.h"
+#include "gimpcanvasguide.h"
+#include "gimpdisplayshell.h"
+
+
+enum
+{
+  PROP_0,
+  PROP_ORIENTATION,
+  PROP_POSITION,
+  PROP_STYLE
+};
+
+
+typedef struct _GimpCanvasGuidePrivate GimpCanvasGuidePrivate;
+
+struct _GimpCanvasGuidePrivate
+{
+  GimpOrientationType  orientation;
+  gint                 position;
+
+  GimpGuideStyle       style;
+};
+
+#define GET_PRIVATE(guide) \
+        ((GimpCanvasGuidePrivate *) gimp_canvas_guide_get_instance_private ((GimpCanvasGuide *) (guide)))
+
+
+/*  local function prototypes  */
+
+static void             gimp_canvas_guide_set_property (GObject        *object,
+                                                        guint           property_id,
+                                                        const GValue   *value,
+                                                        GParamSpec     *pspec);
+static void             gimp_canvas_guide_get_property (GObject        *object,
+                                                        guint           property_id,
+                                                        GValue         *value,
+                                                        GParamSpec     *pspec);
+static void             gimp_canvas_guide_draw         (GimpCanvasItem *item,
+                                                        cairo_t        *cr);
+static cairo_region_t * gimp_canvas_guide_get_extents  (GimpCanvasItem *item);
+static void             gimp_canvas_guide_stroke       (GimpCanvasItem *item,
+                                                        cairo_t        *cr);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpCanvasGuide, gimp_canvas_guide,
+                            GIMP_TYPE_CANVAS_ITEM)
+
+#define parent_class gimp_canvas_guide_parent_class
+
+
+static void
+gimp_canvas_guide_class_init (GimpCanvasGuideClass *klass)
+{
+  GObjectClass        *object_class = G_OBJECT_CLASS (klass);
+  GimpCanvasItemClass *item_class   = GIMP_CANVAS_ITEM_CLASS (klass);
+
+  object_class->set_property = gimp_canvas_guide_set_property;
+  object_class->get_property = gimp_canvas_guide_get_property;
+
+  item_class->draw           = gimp_canvas_guide_draw;
+  item_class->get_extents    = gimp_canvas_guide_get_extents;
+  item_class->stroke         = gimp_canvas_guide_stroke;
+
+  g_object_class_install_property (object_class, PROP_ORIENTATION,
+                                   g_param_spec_enum ("orientation", NULL, NULL,
+                                                      GIMP_TYPE_ORIENTATION_TYPE,
+                                                      GIMP_ORIENTATION_HORIZONTAL,
+                                                      GIMP_PARAM_READWRITE));
+
+  g_object_class_install_property (object_class, PROP_POSITION,
+                                   g_param_spec_int ("position", NULL, NULL,
+                                                     -GIMP_MAX_IMAGE_SIZE,
+                                                     GIMP_MAX_IMAGE_SIZE, 0,
+                                                     GIMP_PARAM_READWRITE));
+
+  g_object_class_install_property (object_class, PROP_STYLE,
+                                   g_param_spec_enum ("style", NULL, NULL,
+                                                      GIMP_TYPE_GUIDE_STYLE,
+                                                      GIMP_GUIDE_STYLE_NONE,
+                                                      GIMP_PARAM_READWRITE));
+}
+
+static void
+gimp_canvas_guide_init (GimpCanvasGuide *guide)
+{
+}
+
+static void
+gimp_canvas_guide_set_property (GObject      *object,
+                                guint         property_id,
+                                const GValue *value,
+                                GParamSpec   *pspec)
+{
+  GimpCanvasGuidePrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_ORIENTATION:
+      private->orientation = g_value_get_enum (value);
+      break;
+    case PROP_POSITION:
+      private->position = g_value_get_int (value);
+      break;
+    case PROP_STYLE:
+      private->style = g_value_get_enum (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_guide_get_property (GObject    *object,
+                                guint       property_id,
+                                GValue     *value,
+                                GParamSpec *pspec)
+{
+  GimpCanvasGuidePrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_ORIENTATION:
+      g_value_set_enum (value, private->orientation);
+      break;
+    case PROP_POSITION:
+      g_value_set_int (value, private->position);
+      break;
+    case PROP_STYLE:
+      g_value_set_enum (value, private->style);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_guide_transform (GimpCanvasItem *item,
+                             gdouble        *x1,
+                             gdouble        *y1,
+                             gdouble        *x2,
+                             gdouble        *y2)
+{
+  GimpCanvasGuidePrivate *private = GET_PRIVATE (item);
+  GtkWidget              *canvas  = gimp_canvas_item_get_canvas (item);
+  GtkAllocation           allocation;
+  gint                    max_outside;
+  gint                    x, y;
+
+  gtk_widget_get_allocation (canvas, &allocation);
+
+  max_outside = allocation.width + allocation.height;
+
+  *x1 = -max_outside;
+  *y1 = -max_outside;
+  *x2 = allocation.width  + max_outside;
+  *y2 = allocation.height + max_outside;
+
+  switch (private->orientation)
+    {
+    case GIMP_ORIENTATION_HORIZONTAL:
+      gimp_canvas_item_transform_xy (item, 0, private->position, &x, &y);
+      *y1 = *y2 = y + 0.5;
+      break;
+
+    case GIMP_ORIENTATION_VERTICAL:
+      gimp_canvas_item_transform_xy (item, private->position, 0, &x, &y);
+      *x1 = *x2 = x + 0.5;
+      break;
+
+    case GIMP_ORIENTATION_UNKNOWN:
+      return;
+    }
+}
+
+static void
+gimp_canvas_guide_draw (GimpCanvasItem *item,
+                        cairo_t        *cr)
+{
+  gdouble x1, y1;
+  gdouble x2, y2;
+
+  gimp_canvas_guide_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_guide_get_extents (GimpCanvasItem *item)
+{
+  cairo_rectangle_int_t rectangle;
+  gdouble               x1, y1;
+  gdouble               x2, y2;
+
+  gimp_canvas_guide_transform (item, &x1, &y1, &x2, &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;
+
+  return cairo_region_create_rectangle (&rectangle);
+}
+
+static void
+gimp_canvas_guide_stroke (GimpCanvasItem *item,
+                          cairo_t        *cr)
+{
+  GimpCanvasGuidePrivate *private = GET_PRIVATE (item);
+
+  if (private->style != GIMP_GUIDE_STYLE_NONE)
+    {
+      GimpDisplayShell *shell = gimp_canvas_item_get_shell (item);
+
+      gimp_canvas_set_guide_style (gimp_canvas_item_get_canvas (item), cr,
+                                   private->style,
+                                   gimp_canvas_item_get_highlight (item),
+                                   shell->offset_x, shell->offset_y);
+      cairo_stroke (cr);
+    }
+  else
+    {
+      GIMP_CANVAS_ITEM_CLASS (parent_class)->stroke (item, cr);
+    }
+}
+
+GimpCanvasItem *
+gimp_canvas_guide_new (GimpDisplayShell    *shell,
+                       GimpOrientationType  orientation,
+                       gint                 position,
+                       GimpGuideStyle       style)
+{
+  g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+  return g_object_new (GIMP_TYPE_CANVAS_GUIDE,
+                       "shell",        shell,
+                       "orientation",  orientation,
+                       "position",     position,
+                       "style",        style,
+                       NULL);
+}
+
+void
+gimp_canvas_guide_set (GimpCanvasItem      *guide,
+                       GimpOrientationType  orientation,
+                       gint                 position)
+{
+  g_return_if_fail (GIMP_IS_CANVAS_GUIDE (guide));
+
+  gimp_canvas_item_begin_change (guide);
+
+  g_object_set (guide,
+                "orientation", orientation,
+                "position",    position,
+                NULL);
+
+  gimp_canvas_item_end_change (guide);
+}