Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 176 insertions, 0 deletions

diff --git a/app/tools/gimperasertool.c b/app/tools/gimperasertool.c
new file mode 100644
index 0000000..d6e2ac9
--- /dev/null
+++ b/app/tools/gimperasertool.c
@@ -0,0 +1,176 @@
+/* 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 <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "tools-types.h"
+
+#include "core/gimpdrawable.h"
+
+#include "paint/gimperaseroptions.h"
+
+#include "widgets/gimphelp-ids.h"
+#include "widgets/gimpwidgets-utils.h"
+
+#include "gimperasertool.h"
+#include "gimppaintoptions-gui.h"
+#include "gimptoolcontrol.h"
+
+#include "gimp-intl.h"
+
+
+static void        gimp_eraser_tool_modifier_key  (GimpTool         *tool,
+                                                   GdkModifierType   key,
+                                                   gboolean          press,
+                                                   GdkModifierType   state,
+                                                   GimpDisplay      *display);
+static void        gimp_eraser_tool_cursor_update (GimpTool         *tool,
+                                                   const GimpCoords *coords,
+                                                   GdkModifierType   state,
+                                                   GimpDisplay      *display);
+
+static gboolean    gimp_eraser_tool_is_alpha_only (GimpPaintTool    *paint_tool,
+                                                   GimpDrawable     *drawable);
+
+static GtkWidget * gimp_eraser_options_gui        (GimpToolOptions  *tool_options);
+
+
+G_DEFINE_TYPE (GimpEraserTool, gimp_eraser_tool, GIMP_TYPE_BRUSH_TOOL)
+
+#define parent_class gimp_eraser_tool_parent_class
+
+
+void
+gimp_eraser_tool_register (GimpToolRegisterCallback  callback,
+                           gpointer                  data)
+{
+  (* callback) (GIMP_TYPE_ERASER_TOOL,
+                GIMP_TYPE_ERASER_OPTIONS,
+                gimp_eraser_options_gui,
+                GIMP_PAINT_OPTIONS_CONTEXT_MASK,
+                "gimp-eraser-tool",
+                _("Eraser"),
+                _("Eraser Tool: Erase to background or transparency using a brush"),
+                N_("_Eraser"), "<shift>E",
+                NULL, GIMP_HELP_TOOL_ERASER,
+                GIMP_ICON_TOOL_ERASER,
+                data);
+}
+
+static void
+gimp_eraser_tool_class_init (GimpEraserToolClass *klass)
+{
+  GimpToolClass      *tool_class       = GIMP_TOOL_CLASS (klass);
+  GimpPaintToolClass *paint_tool_class = GIMP_PAINT_TOOL_CLASS (klass);
+
+  tool_class->modifier_key        = gimp_eraser_tool_modifier_key;
+  tool_class->cursor_update       = gimp_eraser_tool_cursor_update;
+
+  paint_tool_class->is_alpha_only = gimp_eraser_tool_is_alpha_only;
+}
+
+static void
+gimp_eraser_tool_init (GimpEraserTool *eraser)
+{
+  GimpTool      *tool       = GIMP_TOOL (eraser);
+  GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (eraser);
+
+  gimp_tool_control_set_tool_cursor            (tool->control,
+                                                GIMP_TOOL_CURSOR_ERASER);
+  gimp_tool_control_set_toggle_cursor_modifier (tool->control,
+                                                GIMP_CURSOR_MODIFIER_MINUS);
+
+  gimp_paint_tool_enable_color_picker (paint_tool,
+                                       GIMP_COLOR_PICK_TARGET_BACKGROUND);
+
+  paint_tool->status      = _("Click to erase");
+  paint_tool->status_line = _("Click to erase the line");
+  paint_tool->status_ctrl = _("%s to pick a background color");
+}
+
+static void
+gimp_eraser_tool_modifier_key (GimpTool        *tool,
+                               GdkModifierType  key,
+                               gboolean         press,
+                               GdkModifierType  state,
+                               GimpDisplay     *display)
+{
+  if (key == GDK_MOD1_MASK)
+    {
+      GimpEraserOptions *options = GIMP_ERASER_TOOL_GET_OPTIONS (tool);
+
+      g_object_set (options,
+                    "anti-erase", ! options->anti_erase,
+                    NULL);
+    }
+
+  GIMP_TOOL_CLASS (parent_class)->modifier_key (tool, key, press, state, display);
+}
+
+static void
+gimp_eraser_tool_cursor_update (GimpTool         *tool,
+                                const GimpCoords *coords,
+                                GdkModifierType   state,
+                                GimpDisplay      *display)
+{
+  GimpEraserOptions *options = GIMP_ERASER_TOOL_GET_OPTIONS (tool);
+
+  gimp_tool_control_set_toggled (tool->control, options->anti_erase);
+
+  GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
+}
+
+static gboolean
+gimp_eraser_tool_is_alpha_only (GimpPaintTool *paint_tool,
+                                GimpDrawable  *drawable)
+{
+  GimpEraserOptions *options = GIMP_ERASER_TOOL_GET_OPTIONS (paint_tool);
+
+  if (! options->anti_erase)
+    return gimp_drawable_has_alpha (drawable);
+  else
+    return TRUE;
+}
+
+
+/*  tool options stuff  */
+
+static GtkWidget *
+gimp_eraser_options_gui (GimpToolOptions *tool_options)
+{
+  GObject   *config = G_OBJECT (tool_options);
+  GtkWidget *vbox   = gimp_paint_options_gui (tool_options);
+  GtkWidget *button;
+  gchar     *str;
+
+  /* the anti_erase toggle */
+  str = g_strdup_printf (_("Anti erase  (%s)"),
+                         gimp_get_mod_string (GDK_MOD1_MASK));
+
+  button = gimp_prop_check_button_new (config, "anti-erase", str);
+  gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
+  gtk_widget_show (button);
+
+  g_free (str);
+
+  return vbox;
+}