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-rw-r--r--app/tools/gimpoffsettool.c787
1 files changed, 787 insertions, 0 deletions
diff --git a/app/tools/gimpoffsettool.c b/app/tools/gimpoffsettool.c
new file mode 100644
index 0000000..8a17fd3
--- /dev/null
+++ b/app/tools/gimpoffsettool.c
@@ -0,0 +1,787 @@
+/* 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 <string.h>
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpmath/gimpmath.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "tools-types.h"
+
+#include "core/gimpchannel.h"
+#include "core/gimpdrawable.h"
+#include "core/gimpdrawablefilter.h"
+#include "core/gimpimage.h"
+#include "core/gimplayer.h"
+#include "core/gimplayermask.h"
+
+#include "widgets/gimphelp-ids.h"
+
+#include "display/gimpdisplay.h"
+#include "display/gimptoolgui.h"
+
+#include "gimpoffsettool.h"
+#include "gimpfilteroptions.h"
+#include "gimptoolcontrol.h"
+
+#include "gimp-intl.h"
+
+
+static gboolean gimp_offset_tool_initialize (GimpTool *tool,
+ GimpDisplay *display,
+ GError **error);
+static void gimp_offset_tool_control (GimpTool *tool,
+ GimpToolAction action,
+ GimpDisplay *display);
+static void gimp_offset_tool_button_press (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonPressType press_type,
+ GimpDisplay *display);
+static void gimp_offset_tool_button_release (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonReleaseType release_type,
+ GimpDisplay *display);
+static void gimp_offset_tool_motion (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpDisplay *display);
+static void gimp_offset_tool_oper_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ gboolean proximity,
+ GimpDisplay *display);
+static void gimp_offset_tool_cursor_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ GimpDisplay *display);
+
+static gchar * gimp_offset_tool_get_operation (GimpFilterTool *filter_tool,
+ gchar **description);
+static void gimp_offset_tool_dialog (GimpFilterTool *filter_tool);
+static void gimp_offset_tool_config_notify (GimpFilterTool *filter_tool,
+ GimpConfig *config,
+ const GParamSpec *pspec);
+static void gimp_offset_tool_region_changed (GimpFilterTool *filter_tool);
+
+static void gimp_offset_tool_offset_changed (GimpSizeEntry *se,
+ GimpOffsetTool *offset_tool);
+
+static void gimp_offset_tool_half_xy_clicked (GtkButton *button,
+ GimpOffsetTool *offset_tool);
+static void gimp_offset_tool_half_x_clicked (GtkButton *button,
+ GimpOffsetTool *offset_tool);
+static void gimp_offset_tool_half_y_clicked (GtkButton *button,
+ GimpOffsetTool *offset_tool);
+
+static void gimp_offset_tool_edge_behavior_toggled (GtkToggleButton *toggle,
+ GimpOffsetTool *offset_tool);
+
+static void gimp_offset_tool_background_changed (GimpContext *context,
+ const GimpRGB *color,
+ GimpOffsetTool *offset_tool);
+
+static gint gimp_offset_tool_get_width (GimpOffsetTool *offset_tool);
+static gint gimp_offset_tool_get_height (GimpOffsetTool *offset_tool);
+
+static void gimp_offset_tool_update (GimpOffsetTool *offset_tool);
+
+static void gimp_offset_tool_halt (GimpOffsetTool *offset_tool);
+
+
+G_DEFINE_TYPE (GimpOffsetTool, gimp_offset_tool,
+ GIMP_TYPE_FILTER_TOOL)
+
+#define parent_class gimp_offset_tool_parent_class
+
+
+void
+gimp_offset_tool_register (GimpToolRegisterCallback callback,
+ gpointer data)
+{
+ (* callback) (GIMP_TYPE_OFFSET_TOOL,
+ GIMP_TYPE_FILTER_OPTIONS, NULL,
+ GIMP_CONTEXT_PROP_MASK_BACKGROUND,
+ "gimp-offset-tool",
+ _("Offset"),
+ _("Shift the pixels, optionally wrapping them at the borders"),
+ N_("_Offset..."), NULL,
+ NULL, GIMP_HELP_TOOL_OFFSET,
+ GIMP_ICON_TOOL_OFFSET,
+ data);
+}
+
+static void
+gimp_offset_tool_class_init (GimpOffsetToolClass *klass)
+{
+ GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
+ GimpFilterToolClass *filter_tool_class = GIMP_FILTER_TOOL_CLASS (klass);
+
+ tool_class->initialize = gimp_offset_tool_initialize;
+ tool_class->control = gimp_offset_tool_control;
+ tool_class->button_press = gimp_offset_tool_button_press;
+ tool_class->button_release = gimp_offset_tool_button_release;
+ tool_class->motion = gimp_offset_tool_motion;
+ tool_class->oper_update = gimp_offset_tool_oper_update;
+ tool_class->cursor_update = gimp_offset_tool_cursor_update;
+
+ filter_tool_class->get_operation = gimp_offset_tool_get_operation;
+ filter_tool_class->dialog = gimp_offset_tool_dialog;
+ filter_tool_class->config_notify = gimp_offset_tool_config_notify;
+ filter_tool_class->region_changed = gimp_offset_tool_region_changed;
+}
+
+static void
+gimp_offset_tool_init (GimpOffsetTool *offset_tool)
+{
+ GimpTool *tool = GIMP_TOOL (offset_tool);
+
+ gimp_tool_control_set_scroll_lock (tool->control, TRUE);
+ gimp_tool_control_set_precision (tool->control,
+ GIMP_CURSOR_PRECISION_PIXEL_CENTER);
+}
+
+static gboolean
+gimp_offset_tool_initialize (GimpTool *tool,
+ GimpDisplay *display,
+ GError **error)
+{
+ GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (tool);
+ GimpOffsetTool *offset_tool = GIMP_OFFSET_TOOL (tool);
+ GimpContext *context = GIMP_CONTEXT (GIMP_TOOL_GET_OPTIONS (tool));
+ GimpImage *image;
+ gdouble xres;
+ gdouble yres;
+
+ if (! GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error))
+ return FALSE;
+
+ image = gimp_item_get_image (GIMP_ITEM (tool->drawable));
+
+ gimp_image_get_resolution (image, &xres, &yres);
+
+ g_signal_handlers_block_by_func (offset_tool->offset_se,
+ gimp_offset_tool_offset_changed,
+ offset_tool);
+
+ gimp_size_entry_set_resolution (
+ GIMP_SIZE_ENTRY (offset_tool->offset_se), 0,
+ xres, FALSE);
+ gimp_size_entry_set_resolution (
+ GIMP_SIZE_ENTRY (offset_tool->offset_se), 1,
+ yres, FALSE);
+
+ if (GIMP_IS_LAYER (tool->drawable))
+ gimp_tool_gui_set_description (filter_tool->gui, _("Offset Layer"));
+ else if (GIMP_IS_LAYER_MASK (tool->drawable))
+ gimp_tool_gui_set_description (filter_tool->gui, _("Offset Layer Mask"));
+ else if (GIMP_IS_CHANNEL (tool->drawable))
+ gimp_tool_gui_set_description (filter_tool->gui, _("Offset Channel"));
+ else
+ g_warning ("%s: unexpected drawable type", G_STRFUNC);
+
+ gtk_widget_set_sensitive (offset_tool->transparent_radio,
+ gimp_drawable_has_alpha (tool->drawable));
+
+ g_signal_handlers_unblock_by_func (offset_tool->offset_se,
+ gimp_offset_tool_offset_changed,
+ offset_tool);
+
+ gegl_node_set (
+ filter_tool->operation,
+ "context", context,
+ NULL);
+
+ g_signal_connect (context, "background-changed",
+ G_CALLBACK (gimp_offset_tool_background_changed),
+ offset_tool);
+
+ gimp_offset_tool_update (offset_tool);
+
+ return TRUE;
+}
+
+static void
+gimp_offset_tool_control (GimpTool *tool,
+ GimpToolAction action,
+ GimpDisplay *display)
+{
+ GimpOffsetTool *offset_tool = GIMP_OFFSET_TOOL (tool);
+
+ switch (action)
+ {
+ case GIMP_TOOL_ACTION_PAUSE:
+ case GIMP_TOOL_ACTION_RESUME:
+ break;
+
+ case GIMP_TOOL_ACTION_HALT:
+ gimp_offset_tool_halt (offset_tool);
+ break;
+
+ case GIMP_TOOL_ACTION_COMMIT:
+ break;
+ }
+
+ GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
+}
+
+static gchar *
+gimp_offset_tool_get_operation (GimpFilterTool *filter_tool,
+ gchar **description)
+{
+ return g_strdup ("gimp:offset");
+}
+
+static void
+gimp_offset_tool_button_press (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonPressType press_type,
+ GimpDisplay *display)
+{
+ GimpOffsetTool *offset_tool = GIMP_OFFSET_TOOL (tool);
+
+ offset_tool->dragging = ! gimp_filter_tool_on_guide (GIMP_FILTER_TOOL (tool),
+ coords, display);
+
+ if (! offset_tool->dragging)
+ {
+ GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
+ press_type, display);
+ }
+ else
+ {
+ offset_tool->x = coords->x;
+ offset_tool->y = coords->y;
+
+ g_object_get (GIMP_FILTER_TOOL (tool)->config,
+ "x", &offset_tool->offset_x,
+ "y", &offset_tool->offset_y,
+ NULL);
+
+ tool->display = display;
+
+ gimp_tool_control_activate (tool->control);
+
+ gimp_tool_pop_status (tool, display);
+
+ gimp_tool_push_status_coords (tool, display,
+ GIMP_CURSOR_PRECISION_PIXEL_CENTER,
+ _("Offset: "),
+ 0,
+ ", ",
+ 0,
+ NULL);
+ }
+}
+
+static void
+gimp_offset_tool_button_release (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonReleaseType release_type,
+ GimpDisplay *display)
+{
+ GimpOffsetTool *offset_tool = GIMP_OFFSET_TOOL (tool);
+
+ if (! offset_tool->dragging)
+ {
+ GIMP_TOOL_CLASS (parent_class)->button_release (tool, coords, time, state,
+ release_type, display);
+ }
+ else
+ {
+ gimp_tool_control_halt (tool->control);
+
+ offset_tool->dragging = FALSE;
+
+ if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
+ {
+ g_object_set (GIMP_FILTER_TOOL (tool)->config,
+ "x", offset_tool->offset_x,
+ "y", offset_tool->offset_y,
+ NULL);
+ }
+ }
+}
+
+static void
+gimp_offset_tool_motion (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpDisplay *display)
+{
+ GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (tool);
+ GimpOffsetTool *offset_tool = GIMP_OFFSET_TOOL (tool);
+
+ if (! offset_tool->dragging)
+ {
+ GIMP_TOOL_CLASS (parent_class)->motion (tool, coords, time, state,
+ display);
+ }
+ else
+ {
+ GimpOffsetType type;
+ gint offset_x;
+ gint offset_y;
+ gint x;
+ gint y;
+ gint width;
+ gint height;
+
+ g_object_get (filter_tool->config,
+ "type", &type,
+ NULL);
+
+ offset_x = RINT (coords->x - offset_tool->x);
+ offset_y = RINT (coords->y - offset_tool->y);
+
+ x = offset_tool->offset_x + offset_x;
+ y = offset_tool->offset_y + offset_y;
+
+ width = gimp_offset_tool_get_width (offset_tool);
+ height = gimp_offset_tool_get_height (offset_tool);
+
+ if (type == GIMP_OFFSET_WRAP_AROUND)
+ {
+ x %= MAX (width, 1);
+ y %= MAX (height, 1);
+ }
+ else
+ {
+ x = CLAMP (x, -width, +width);
+ y = CLAMP (y, -height, +height);
+ }
+
+ g_object_set (filter_tool->config,
+ "x", x,
+ "y", y,
+ NULL);
+
+ gimp_tool_pop_status (tool, display);
+
+ gimp_tool_push_status_coords (tool, display,
+ GIMP_CURSOR_PRECISION_PIXEL_CENTER,
+ _("Offset: "),
+ offset_x,
+ ", ",
+ offset_y,
+ NULL);
+ }
+}
+
+static void
+gimp_offset_tool_oper_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ gboolean proximity,
+ GimpDisplay *display)
+{
+ if (! tool->drawable ||
+ gimp_filter_tool_on_guide (GIMP_FILTER_TOOL (tool),
+ coords, display))
+ {
+ GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state,
+ proximity, display);
+ }
+ else
+ {
+ gimp_tool_pop_status (tool, display);
+
+ gimp_tool_push_status (tool, display, "%s",
+ _("Click-Drag to offset drawable"));
+ }
+}
+
+static void
+gimp_offset_tool_cursor_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ GimpDisplay *display)
+{
+ if (! tool->drawable ||
+ gimp_filter_tool_on_guide (GIMP_FILTER_TOOL (tool),
+ coords, display))
+ {
+ GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state,
+ display);
+ }
+ else
+ {
+ gimp_tool_set_cursor (tool, display,
+ GIMP_CURSOR_MOUSE,
+ GIMP_TOOL_CURSOR_MOVE,
+ GIMP_CURSOR_MODIFIER_NONE);
+ }
+}
+
+static void
+gimp_offset_tool_dialog (GimpFilterTool *filter_tool)
+{
+ GimpOffsetTool *offset_tool = GIMP_OFFSET_TOOL (filter_tool);
+ GtkWidget *main_vbox;
+ GtkWidget *vbox;
+ GtkWidget *hbox;
+ GtkWidget *button;
+ GtkWidget *spinbutton;
+ GtkWidget *frame;
+ GtkAdjustment *adjustment;
+
+ main_vbox = gimp_filter_tool_dialog_get_vbox (filter_tool);
+
+ /* The offset frame */
+ frame = gimp_frame_new (_("Offset"));
+ gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+ gtk_container_add (GTK_CONTAINER (frame), vbox);
+ gtk_widget_show (vbox);
+
+ adjustment = (GtkAdjustment *)
+ gtk_adjustment_new (1, 1, 1, 1, 10, 0);
+ spinbutton = gimp_spin_button_new (adjustment, 1.0, 2);
+ gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
+ gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), 10);
+
+ offset_tool->offset_se = gimp_size_entry_new (1, GIMP_UNIT_PIXEL, "%a",
+ TRUE, TRUE, FALSE, 10,
+ GIMP_SIZE_ENTRY_UPDATE_SIZE);
+
+ gtk_table_set_col_spacing (GTK_TABLE (offset_tool->offset_se), 0, 4);
+ gtk_table_set_col_spacing (GTK_TABLE (offset_tool->offset_se), 1, 4);
+ gtk_table_set_row_spacing (GTK_TABLE (offset_tool->offset_se), 0, 2);
+
+ gimp_size_entry_add_field (GIMP_SIZE_ENTRY (offset_tool->offset_se),
+ GTK_SPIN_BUTTON (spinbutton), NULL);
+ gtk_table_attach_defaults (GTK_TABLE (offset_tool->offset_se), spinbutton,
+ 1, 2, 0, 1);
+ gtk_widget_show (spinbutton);
+
+ gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (offset_tool->offset_se),
+ _("_X:"), 0, 0, 0.0);
+ gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (offset_tool->offset_se),
+ _("_Y:"), 1, 0, 0.0);
+
+ gtk_box_pack_start (GTK_BOX (vbox), offset_tool->offset_se, FALSE, FALSE, 0);
+ gtk_widget_show (offset_tool->offset_se);
+
+ gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (offset_tool->offset_se),
+ GIMP_UNIT_PIXEL);
+
+ g_signal_connect (offset_tool->offset_se, "refval-changed",
+ G_CALLBACK (gimp_offset_tool_offset_changed),
+ offset_tool);
+ g_signal_connect (offset_tool->offset_se, "value-changed",
+ G_CALLBACK (gimp_offset_tool_offset_changed),
+ offset_tool);
+
+ button = gtk_button_new_with_mnemonic (_("By width/_2, height/2"));
+ gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
+ gtk_widget_show (button);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (gimp_offset_tool_half_xy_clicked),
+ offset_tool);
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+ gtk_widget_show (hbox);
+
+ button = gtk_button_new_with_mnemonic (_("By _width/2"));
+ gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
+ gtk_widget_show (button);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (gimp_offset_tool_half_x_clicked),
+ offset_tool);
+
+ button = gtk_button_new_with_mnemonic (_("By _height/2"));
+ gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
+ gtk_widget_show (button);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (gimp_offset_tool_half_y_clicked),
+ offset_tool);
+
+ /* The edge behavior frame */
+ frame = gimp_int_radio_group_new (TRUE, _("Edge Behavior"),
+
+ G_CALLBACK (gimp_offset_tool_edge_behavior_toggled),
+ offset_tool,
+
+ GIMP_OFFSET_WRAP_AROUND,
+
+ _("W_rap around"),
+ GIMP_OFFSET_WRAP_AROUND, NULL,
+
+ _("Fill with _background color"),
+ GIMP_OFFSET_BACKGROUND, NULL,
+
+ _("Make _transparent"),
+ GIMP_OFFSET_TRANSPARENT,
+ &offset_tool->transparent_radio,
+ NULL);
+
+ gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+}
+
+static void
+gimp_offset_tool_config_notify (GimpFilterTool *filter_tool,
+ GimpConfig *config,
+ const GParamSpec *pspec)
+{
+ gimp_offset_tool_update (GIMP_OFFSET_TOOL (filter_tool));
+
+ GIMP_FILTER_TOOL_CLASS (parent_class)->config_notify (filter_tool,
+ config, pspec);
+}
+
+static void
+gimp_offset_tool_region_changed (GimpFilterTool *filter_tool)
+{
+ gimp_offset_tool_update (GIMP_OFFSET_TOOL (filter_tool));
+}
+
+static void
+gimp_offset_tool_offset_changed (GimpSizeEntry *se,
+ GimpOffsetTool *offset_tool)
+{
+ g_object_set (GIMP_FILTER_TOOL (offset_tool)->config,
+ "x", (gint) gimp_size_entry_get_refval (se, 0),
+ "y", (gint) gimp_size_entry_get_refval (se, 1),
+ NULL);
+}
+
+static void
+gimp_offset_tool_half_xy_clicked (GtkButton *button,
+ GimpOffsetTool *offset_tool)
+{
+ g_object_set (GIMP_FILTER_TOOL (offset_tool)->config,
+ "x", gimp_offset_tool_get_width (offset_tool) / 2,
+ "y", gimp_offset_tool_get_height (offset_tool) / 2,
+ NULL);
+}
+
+static void
+gimp_offset_tool_half_x_clicked (GtkButton *button,
+ GimpOffsetTool *offset_tool)
+{
+ g_object_set (GIMP_FILTER_TOOL (offset_tool)->config,
+ "x", gimp_offset_tool_get_width (offset_tool) / 2,
+ NULL);
+}
+
+static void
+gimp_offset_tool_half_y_clicked (GtkButton *button,
+ GimpOffsetTool *offset_tool)
+{
+ g_object_set (GIMP_FILTER_TOOL (offset_tool)->config,
+ "y", gimp_offset_tool_get_height (offset_tool) / 2,
+ NULL);
+}
+
+static void
+gimp_offset_tool_edge_behavior_toggled (GtkToggleButton *toggle,
+ GimpOffsetTool *offset_tool)
+{
+ if (gtk_toggle_button_get_active (toggle))
+ {
+ GimpOffsetType type;
+
+ type = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (toggle),
+ "gimp-item-data"));
+
+ g_object_set (GIMP_FILTER_TOOL (offset_tool)->config,
+ "type", type,
+ NULL);
+ }
+}
+
+static void
+gimp_offset_tool_background_changed (GimpContext *context,
+ const GimpRGB *color,
+ GimpOffsetTool *offset_tool)
+{
+ GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (offset_tool);
+ GimpOffsetType type;
+
+ g_object_get (filter_tool->config,
+ "type", &type,
+ NULL);
+
+ if (type == GIMP_OFFSET_BACKGROUND)
+ {
+ gegl_node_set (filter_tool->operation,
+ "context", context,
+ NULL);
+
+ gimp_drawable_filter_apply (filter_tool->filter, NULL);
+ }
+}
+
+static gint
+gimp_offset_tool_get_width (GimpOffsetTool *offset_tool)
+{
+ GeglRectangle drawable_area;
+ gint drawable_offset_x;
+ gint drawable_offset_y;
+
+ if (gimp_filter_tool_get_drawable_area (GIMP_FILTER_TOOL (offset_tool),
+ &drawable_offset_x,
+ &drawable_offset_y,
+ &drawable_area) &&
+ ! gegl_rectangle_is_empty (&drawable_area))
+ {
+ return drawable_area.width;
+ }
+
+ return 0;
+}
+
+static gint
+gimp_offset_tool_get_height (GimpOffsetTool *offset_tool)
+{
+ GeglRectangle drawable_area;
+ gint drawable_offset_x;
+ gint drawable_offset_y;
+
+ if (gimp_filter_tool_get_drawable_area (GIMP_FILTER_TOOL (offset_tool),
+ &drawable_offset_x,
+ &drawable_offset_y,
+ &drawable_area) &&
+ ! gegl_rectangle_is_empty (&drawable_area))
+ {
+ return drawable_area.height;
+ }
+
+ return 0;
+}
+
+static void
+gimp_offset_tool_update (GimpOffsetTool *offset_tool)
+{
+ GimpTool *tool = GIMP_TOOL (offset_tool);
+ GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (offset_tool);
+ GimpOffsetType orig_type;
+ gint orig_x;
+ gint orig_y;
+ GimpOffsetType type;
+ gint x;
+ gint y;
+ gint width;
+ gint height;
+
+ g_object_get (filter_tool->config,
+ "type", &orig_type,
+ "x", &orig_x,
+ "y", &orig_y,
+ NULL);
+
+ width = gimp_offset_tool_get_width (offset_tool);
+ height = gimp_offset_tool_get_height (offset_tool);
+
+ x = CLAMP (orig_x, -width, +width);
+ y = CLAMP (orig_y, -height, +height);
+
+ type = orig_type;
+
+ if (tool->drawable &&
+ ! gimp_drawable_has_alpha (tool->drawable) &&
+ type == GIMP_OFFSET_TRANSPARENT)
+ {
+ type = GIMP_OFFSET_BACKGROUND;
+ }
+
+ if (x != orig_x ||
+ y != orig_y ||
+ type != orig_type)
+ {
+ g_object_set (filter_tool->config,
+ "type", type,
+ "x", x,
+ "y", y,
+ NULL);
+ }
+
+ if (offset_tool->offset_se)
+ {
+ gint width = gimp_offset_tool_get_width (offset_tool);
+ gint height = gimp_offset_tool_get_height (offset_tool);
+
+ g_signal_handlers_block_by_func (offset_tool->offset_se,
+ gimp_offset_tool_offset_changed,
+ offset_tool);
+
+ gimp_size_entry_set_refval_boundaries (
+ GIMP_SIZE_ENTRY (offset_tool->offset_se), 0,
+ -width, +width);
+ gimp_size_entry_set_refval_boundaries (
+ GIMP_SIZE_ENTRY (offset_tool->offset_se), 1,
+ -height, +height);
+
+ gimp_size_entry_set_size (
+ GIMP_SIZE_ENTRY (offset_tool->offset_se), 0,
+ 0, width);
+ gimp_size_entry_set_size (
+ GIMP_SIZE_ENTRY (offset_tool->offset_se), 1,
+ 0, height);
+
+ gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset_tool->offset_se), 0,
+ x);
+ gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (offset_tool->offset_se), 1,
+ y);
+
+ g_signal_handlers_unblock_by_func (offset_tool->offset_se,
+ gimp_offset_tool_offset_changed,
+ offset_tool);
+ }
+
+ if (offset_tool->transparent_radio)
+ {
+ gimp_int_radio_group_set_active (
+ GTK_RADIO_BUTTON (offset_tool->transparent_radio),
+ type);
+ }
+}
+
+static void
+gimp_offset_tool_halt (GimpOffsetTool *offset_tool)
+{
+ GimpContext *context = GIMP_CONTEXT (GIMP_TOOL_GET_OPTIONS (offset_tool));
+
+ offset_tool->offset_se = NULL;
+ offset_tool->transparent_radio = NULL;
+
+ g_signal_handlers_disconnect_by_func (
+ context,
+ gimp_offset_tool_background_changed,
+ offset_tool);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-08 20:02:21 +0000