Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 356 insertions, 0 deletions

diff --git a/app/display/gimpcanvassamplepoint.c b/app/display/gimpcanvassamplepoint.c
new file mode 100644
index 0000000..913a5b7
--- /dev/null
+++ b/app/display/gimpcanvassamplepoint.c
@@ -0,0 +1,356 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcanvassamplepoint.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.h"
+#include "gimpcanvas-style.h"
+#include "gimpcanvassamplepoint.h"
+#include "gimpdisplayshell.h"
+
+
+#define GIMP_SAMPLE_POINT_DRAW_SIZE 14
+
+
+enum
+{
+  PROP_0,
+  PROP_X,
+  PROP_Y,
+  PROP_INDEX,
+  PROP_SAMPLE_POINT_STYLE
+};
+
+
+typedef struct _GimpCanvasSamplePointPrivate GimpCanvasSamplePointPrivate;
+
+struct _GimpCanvasSamplePointPrivate
+{
+  gint     x;
+  gint     y;
+  gint     index;
+  gboolean sample_point_style;
+};
+
+#define GET_PRIVATE(sample_point) \
+        ((GimpCanvasSamplePointPrivate *) gimp_canvas_sample_point_get_instance_private ((GimpCanvasSamplePoint *) (sample_point)))
+
+
+/*  local function prototypes  */
+
+static void             gimp_canvas_sample_point_set_property (GObject        *object,
+                                                               guint           property_id,
+                                                               const GValue   *value,
+                                                               GParamSpec     *pspec);
+static void             gimp_canvas_sample_point_get_property (GObject        *object,
+                                                               guint           property_id,
+                                                               GValue         *value,
+                                                               GParamSpec     *pspec);
+static void             gimp_canvas_sample_point_draw         (GimpCanvasItem *item,
+                                                               cairo_t        *cr);
+static cairo_region_t * gimp_canvas_sample_point_get_extents  (GimpCanvasItem *item);
+static void             gimp_canvas_sample_point_stroke       (GimpCanvasItem *item,
+                                                               cairo_t        *cr);
+static void             gimp_canvas_sample_point_fill         (GimpCanvasItem *item,
+                                                               cairo_t        *cr);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpCanvasSamplePoint, gimp_canvas_sample_point,
+                            GIMP_TYPE_CANVAS_ITEM)
+
+#define parent_class gimp_canvas_sample_point_parent_class
+
+
+static void
+gimp_canvas_sample_point_class_init (GimpCanvasSamplePointClass *klass)
+{
+  GObjectClass        *object_class = G_OBJECT_CLASS (klass);
+  GimpCanvasItemClass *item_class   = GIMP_CANVAS_ITEM_CLASS (klass);
+
+  object_class->set_property = gimp_canvas_sample_point_set_property;
+  object_class->get_property = gimp_canvas_sample_point_get_property;
+
+  item_class->draw           = gimp_canvas_sample_point_draw;
+  item_class->get_extents    = gimp_canvas_sample_point_get_extents;
+  item_class->stroke         = gimp_canvas_sample_point_stroke;
+  item_class->fill           = gimp_canvas_sample_point_fill;
+
+  g_object_class_install_property (object_class, PROP_X,
+                                   g_param_spec_int ("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_int ("y", NULL, NULL,
+                                                     -GIMP_MAX_IMAGE_SIZE,
+                                                     GIMP_MAX_IMAGE_SIZE, 0,
+                                                     GIMP_PARAM_READWRITE));
+
+  g_object_class_install_property (object_class, PROP_INDEX,
+                                   g_param_spec_int ("index", NULL, NULL,
+                                                     0, G_MAXINT, 0,
+                                                     GIMP_PARAM_READWRITE));
+
+  g_object_class_install_property (object_class, PROP_SAMPLE_POINT_STYLE,
+                                   g_param_spec_boolean ("sample-point-style",
+                                                         NULL, NULL,
+                                                         FALSE,
+                                                         GIMP_PARAM_READWRITE));
+}
+
+static void
+gimp_canvas_sample_point_init (GimpCanvasSamplePoint *sample_point)
+{
+}
+
+static void
+gimp_canvas_sample_point_set_property (GObject      *object,
+                                       guint         property_id,
+                                       const GValue *value,
+                                       GParamSpec   *pspec)
+{
+  GimpCanvasSamplePointPrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_X:
+      private->x = g_value_get_int (value);
+      break;
+    case PROP_Y:
+      private->y = g_value_get_int (value);
+      break;
+    case PROP_INDEX:
+      private->index = g_value_get_int (value);
+      break;
+    case PROP_SAMPLE_POINT_STYLE:
+      private->sample_point_style = g_value_get_boolean (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_sample_point_get_property (GObject    *object,
+                                       guint       property_id,
+                                       GValue     *value,
+                                       GParamSpec *pspec)
+{
+  GimpCanvasSamplePointPrivate *private = GET_PRIVATE (object);
+
+  switch (property_id)
+    {
+    case PROP_X:
+      g_value_set_int (value, private->x);
+      break;
+    case PROP_Y:
+      g_value_set_int (value, private->x);
+      break;
+    case PROP_INDEX:
+      g_value_set_int (value, private->x);
+      break;
+    case PROP_SAMPLE_POINT_STYLE:
+      g_value_set_boolean (value, private->sample_point_style);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_canvas_sample_point_transform (GimpCanvasItem *item,
+                                    gdouble        *x,
+                                    gdouble        *y)
+{
+  GimpCanvasSamplePointPrivate *private = GET_PRIVATE (item);
+
+  gimp_canvas_item_transform_xy_f (item,
+                                   private->x + 0.5,
+                                   private->y + 0.5,
+                                   x, y);
+
+  *x = floor (*x) + 0.5;
+  *y = floor (*y) + 0.5;
+}
+
+#define HALF_SIZE (GIMP_SAMPLE_POINT_DRAW_SIZE / 2)
+
+static void
+gimp_canvas_sample_point_draw (GimpCanvasItem *item,
+                               cairo_t        *cr)
+{
+  GimpCanvasSamplePointPrivate *private = GET_PRIVATE (item);
+  GtkWidget                    *canvas  = gimp_canvas_item_get_canvas (item);
+  PangoLayout                  *layout;
+  gdouble                       x, y;
+  gint                          x1, x2, y1, y2;
+
+  gimp_canvas_sample_point_transform (item, &x, &y);
+
+  x1 = x - GIMP_SAMPLE_POINT_DRAW_SIZE;
+  x2 = x + GIMP_SAMPLE_POINT_DRAW_SIZE;
+  y1 = y - GIMP_SAMPLE_POINT_DRAW_SIZE;
+  y2 = y + GIMP_SAMPLE_POINT_DRAW_SIZE;
+
+  cairo_move_to (cr, x, y1);
+  cairo_line_to (cr, x, y1 + HALF_SIZE);
+
+  cairo_move_to (cr, x, y2);
+  cairo_line_to (cr, x, y2 - HALF_SIZE);
+
+  cairo_move_to (cr, x1,             y);
+  cairo_line_to (cr, x1 + HALF_SIZE, y);
+
+  cairo_move_to (cr, x2,             y);
+  cairo_line_to (cr, x2 - HALF_SIZE, y);
+
+  cairo_arc_negative (cr, x, y, HALF_SIZE, 0.0, 0.5 * G_PI);
+
+  _gimp_canvas_item_stroke (item, cr);
+
+  layout = gimp_canvas_get_layout (GIMP_CANVAS (canvas),
+                                   "%d", private->index);
+
+  cairo_move_to (cr, x + 3, y + 3);
+  pango_cairo_show_layout (cr, layout);
+
+  _gimp_canvas_item_stroke (item, cr);
+}
+
+static cairo_region_t *
+gimp_canvas_sample_point_get_extents (GimpCanvasItem *item)
+{
+  GimpCanvasSamplePointPrivate *private = GET_PRIVATE (item);
+  GtkWidget                    *canvas  = gimp_canvas_item_get_canvas (item);
+  cairo_rectangle_int_t         rectangle;
+  PangoLayout                  *layout;
+  PangoRectangle                ink;
+  gdouble                       x, y;
+  gint                          x1, x2, y1, y2;
+
+  gimp_canvas_sample_point_transform (item, &x, &y);
+
+  x1 = floor (x - GIMP_SAMPLE_POINT_DRAW_SIZE);
+  x2 = ceil  (x + GIMP_SAMPLE_POINT_DRAW_SIZE);
+  y1 = floor (y - GIMP_SAMPLE_POINT_DRAW_SIZE);
+  y2 = ceil  (y + GIMP_SAMPLE_POINT_DRAW_SIZE);
+
+  layout = gimp_canvas_get_layout (GIMP_CANVAS (canvas),
+                                   "%d", private->index);
+
+  pango_layout_get_extents (layout, &ink, NULL);
+
+  x2 = MAX (x2, 3 + ink.width);
+  y2 = MAX (y2, 3 + ink.height);
+
+  rectangle.x      = x1 - 1.5;
+  rectangle.y      = y1 - 1.5;
+  rectangle.width  = x2 - x1 + 3.0;
+  rectangle.height = y2 - y1 + 3.0;
+
+  return cairo_region_create_rectangle (&rectangle);
+}
+
+static void
+gimp_canvas_sample_point_stroke (GimpCanvasItem *item,
+                                 cairo_t        *cr)
+{
+  GimpCanvasSamplePointPrivate *private = GET_PRIVATE (item);
+
+  if (private->sample_point_style)
+    {
+      gimp_canvas_set_tool_bg_style (gimp_canvas_item_get_canvas (item), cr);
+      cairo_stroke_preserve (cr);
+
+      gimp_canvas_set_sample_point_style (gimp_canvas_item_get_canvas (item), cr,
+                                          gimp_canvas_item_get_highlight (item));
+      cairo_stroke (cr);
+    }
+  else
+    {
+      GIMP_CANVAS_ITEM_CLASS (parent_class)->stroke (item, cr);
+    }
+}
+
+static void
+gimp_canvas_sample_point_fill (GimpCanvasItem *item,
+                               cairo_t        *cr)
+{
+  GimpCanvasSamplePointPrivate *private = GET_PRIVATE (item);
+
+  if (private->sample_point_style)
+    {
+      gimp_canvas_set_sample_point_style (gimp_canvas_item_get_canvas (item), cr,
+                                          gimp_canvas_item_get_highlight (item));
+      cairo_fill (cr);
+    }
+  else
+    {
+      GIMP_CANVAS_ITEM_CLASS (parent_class)->fill (item, cr);
+    }
+}
+
+GimpCanvasItem *
+gimp_canvas_sample_point_new (GimpDisplayShell *shell,
+                              gint              x,
+                              gint              y,
+                              gint              index,
+                              gboolean          sample_point_style)
+{
+  g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+  return g_object_new (GIMP_TYPE_CANVAS_SAMPLE_POINT,
+                       "shell",              shell,
+                       "x",                  x,
+                       "y",                  y,
+                       "index",              index,
+                       "sample-point-style", sample_point_style,
+                       NULL);
+}
+
+void
+gimp_canvas_sample_point_set (GimpCanvasItem *sample_point,
+                              gint            x,
+                              gint            y)
+{
+  g_return_if_fail (GIMP_IS_CANVAS_SAMPLE_POINT (sample_point));
+
+  gimp_canvas_item_begin_change (sample_point);
+
+  g_object_set (sample_point,
+                "x", x,
+                "y", y,
+                NULL);
+
+  gimp_canvas_item_end_change (sample_point);
+}