Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 266 insertions, 0 deletions

diff --git a/app/paint/gimpairbrush.c b/app/paint/gimpairbrush.c
new file mode 100644
index 0000000..b4bf5b4
--- /dev/null
+++ b/app/paint/gimpairbrush.c
@@ -0,0 +1,266 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "paint-types.h"
+
+#include "core/gimp.h"
+#include "core/gimpbrush.h"
+#include "core/gimpdrawable.h"
+#include "core/gimpdynamics.h"
+#include "core/gimpgradient.h"
+#include "core/gimpimage.h"
+#include "core/gimpsymmetry.h"
+
+#include "gimpairbrush.h"
+#include "gimpairbrushoptions.h"
+
+#include "gimp-intl.h"
+
+
+#define STAMP_MAX_FPS 60
+
+
+enum
+{
+  STAMP,
+  LAST_SIGNAL
+};
+
+
+static void       gimp_airbrush_finalize (GObject          *object);
+
+static void       gimp_airbrush_paint    (GimpPaintCore    *paint_core,
+                                          GimpDrawable     *drawable,
+                                          GimpPaintOptions *paint_options,
+                                          GimpSymmetry     *sym,
+                                          GimpPaintState    paint_state,
+                                          guint32           time);
+static void       gimp_airbrush_motion   (GimpPaintCore    *paint_core,
+                                          GimpDrawable     *drawable,
+                                          GimpPaintOptions *paint_options,
+                                          GimpSymmetry     *sym);
+
+static gboolean   gimp_airbrush_timeout  (gpointer          data);
+
+
+G_DEFINE_TYPE (GimpAirbrush, gimp_airbrush, GIMP_TYPE_PAINTBRUSH)
+
+#define parent_class gimp_airbrush_parent_class
+
+static guint airbrush_signals[LAST_SIGNAL] = { 0 };
+
+
+void
+gimp_airbrush_register (Gimp                      *gimp,
+                        GimpPaintRegisterCallback  callback)
+{
+  (* callback) (gimp,
+                GIMP_TYPE_AIRBRUSH,
+                GIMP_TYPE_AIRBRUSH_OPTIONS,
+                "gimp-airbrush",
+                _("Airbrush"),
+                "gimp-tool-airbrush");
+}
+
+static void
+gimp_airbrush_class_init (GimpAirbrushClass *klass)
+{
+  GObjectClass       *object_class     = G_OBJECT_CLASS (klass);
+  GimpPaintCoreClass *paint_core_class = GIMP_PAINT_CORE_CLASS (klass);
+
+  object_class->finalize  = gimp_airbrush_finalize;
+
+  paint_core_class->paint = gimp_airbrush_paint;
+
+  airbrush_signals[STAMP] =
+    g_signal_new ("stamp",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_FIRST,
+                  G_STRUCT_OFFSET (GimpAirbrushClass, stamp),
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+}
+
+static void
+gimp_airbrush_init (GimpAirbrush *airbrush)
+{
+}
+
+static void
+gimp_airbrush_finalize (GObject *object)
+{
+  GimpAirbrush *airbrush = GIMP_AIRBRUSH (object);
+
+  if (airbrush->timeout_id)
+    {
+      g_source_remove (airbrush->timeout_id);
+      airbrush->timeout_id = 0;
+    }
+
+  g_clear_object (&airbrush->sym);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_airbrush_paint (GimpPaintCore    *paint_core,
+                     GimpDrawable     *drawable,
+                     GimpPaintOptions *paint_options,
+                     GimpSymmetry     *sym,
+                     GimpPaintState    paint_state,
+                     guint32           time)
+{
+  GimpAirbrush        *airbrush = GIMP_AIRBRUSH (paint_core);
+  GimpAirbrushOptions *options  = GIMP_AIRBRUSH_OPTIONS (paint_options);
+  GimpDynamics        *dynamics = GIMP_BRUSH_CORE (paint_core)->dynamics;
+
+  if (airbrush->timeout_id)
+    {
+      g_source_remove (airbrush->timeout_id);
+      airbrush->timeout_id = 0;
+    }
+
+  switch (paint_state)
+    {
+    case GIMP_PAINT_STATE_INIT:
+      GIMP_PAINT_CORE_CLASS (parent_class)->paint (paint_core, drawable,
+                                                   paint_options,
+                                                   sym,
+                                                   paint_state, time);
+      break;
+
+    case GIMP_PAINT_STATE_MOTION:
+      gimp_airbrush_motion (paint_core, drawable, paint_options, sym);
+
+      if ((options->rate != 0.0) && ! options->motion_only)
+        {
+          GimpImage  *image = gimp_item_get_image (GIMP_ITEM (drawable));
+          gdouble     fade_point;
+          gdouble     dynamic_rate;
+          gint        timeout;
+          GimpCoords *coords;
+
+          fade_point = gimp_paint_options_get_fade (paint_options, image,
+                                                    paint_core->pixel_dist);
+
+          airbrush->drawable      = drawable;
+          airbrush->paint_options = paint_options;
+
+          if (airbrush->sym)
+            g_object_unref (airbrush->sym);
+          airbrush->sym = g_object_ref (sym);
+
+          /* Base our timeout on the original stroke. */
+          coords = gimp_symmetry_get_origin (sym);
+
+          airbrush->coords = *coords;
+
+          dynamic_rate = gimp_dynamics_get_linear_value (dynamics,
+                                                         GIMP_DYNAMICS_OUTPUT_RATE,
+                                                         coords,
+                                                         paint_options,
+                                                         fade_point);
+
+          timeout = (1000.0 / STAMP_MAX_FPS) /
+                    ((options->rate / 100.0) * dynamic_rate);
+
+          airbrush->timeout_id = g_timeout_add_full (G_PRIORITY_HIGH,
+                                                     timeout,
+                                                     gimp_airbrush_timeout,
+                                                     airbrush, NULL);
+        }
+      break;
+
+    case GIMP_PAINT_STATE_FINISH:
+      GIMP_PAINT_CORE_CLASS (parent_class)->paint (paint_core, drawable,
+                                                   paint_options,
+                                                   sym,
+                                                   paint_state, time);
+
+      g_clear_object (&airbrush->sym);
+      break;
+    }
+}
+
+static void
+gimp_airbrush_motion (GimpPaintCore    *paint_core,
+                      GimpDrawable     *drawable,
+                      GimpPaintOptions *paint_options,
+                      GimpSymmetry     *sym)
+
+{
+  GimpAirbrushOptions *options  = GIMP_AIRBRUSH_OPTIONS (paint_options);
+  GimpDynamics        *dynamics = GIMP_BRUSH_CORE (paint_core)->dynamics;
+  GimpImage           *image    = gimp_item_get_image (GIMP_ITEM (drawable));
+  gdouble              opacity;
+  gdouble              fade_point;
+  GimpCoords          *coords;
+
+  fade_point = gimp_paint_options_get_fade (paint_options, image,
+                                            paint_core->pixel_dist);
+
+  coords = gimp_symmetry_get_origin (sym);
+
+  opacity = (options->flow / 100.0 *
+             gimp_dynamics_get_linear_value (dynamics,
+                                             GIMP_DYNAMICS_OUTPUT_FLOW,
+                                             coords,
+                                             paint_options,
+                                             fade_point));
+
+  _gimp_paintbrush_motion (paint_core, drawable, paint_options,
+                           sym, opacity);
+}
+
+static gboolean
+gimp_airbrush_timeout (gpointer data)
+{
+  GimpAirbrush *airbrush = GIMP_AIRBRUSH (data);
+
+  airbrush->timeout_id = 0;
+
+  g_signal_emit (airbrush, airbrush_signals[STAMP], 0);
+
+  return G_SOURCE_REMOVE;
+}
+
+
+/*  public functions  */
+
+
+void
+gimp_airbrush_stamp (GimpAirbrush *airbrush)
+{
+  g_return_if_fail (GIMP_IS_AIRBRUSH (airbrush));
+
+  gimp_symmetry_set_origin (airbrush->sym,
+                            airbrush->drawable, &airbrush->coords);
+
+  gimp_airbrush_paint (GIMP_PAINT_CORE (airbrush),
+                       airbrush->drawable,
+                       airbrush->paint_options,
+                       airbrush->sym,
+                       GIMP_PAINT_STATE_MOTION, 0);
+
+  gimp_symmetry_clear_origin (airbrush->sym);
+}