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-rw-r--r--app/tools/gimprectangleselecttool.c918
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diff --git a/app/tools/gimprectangleselecttool.c b/app/tools/gimprectangleselecttool.c
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+/* 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 "libgimpmath/gimpmath.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "tools-types.h"
+
+#include "core/gimpchannel-select.h"
+#include "core/gimpchannel.h"
+#include "core/gimpimage.h"
+#include "core/gimplayer-floating-selection.h"
+#include "core/gimppickable.h"
+
+#include "widgets/gimphelp-ids.h"
+#include "widgets/gimpwidgets-utils.h"
+
+#include "display/gimpdisplay.h"
+#include "display/gimpdisplayshell.h"
+#include "display/gimptoolrectangle.h"
+
+#include "gimpeditselectiontool.h"
+#include "gimprectangleoptions.h"
+#include "gimprectangleselecttool.h"
+#include "gimprectangleselectoptions.h"
+#include "gimptoolcontrol.h"
+
+#include "gimp-intl.h"
+
+
+struct _GimpRectangleSelectToolPrivate
+{
+ GimpChannelOps operation; /* remember for use when modifying */
+ gboolean use_saved_op; /* use operation or get from options */
+
+ gdouble press_x;
+ gdouble press_y;
+
+ GimpToolWidget *widget;
+ GimpToolWidget *grab_widget;
+ GList *bindings;
+};
+
+
+static void gimp_rectangle_select_tool_control (GimpTool *tool,
+ GimpToolAction action,
+ GimpDisplay *display);
+static void gimp_rectangle_select_tool_button_press (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonPressType press_type,
+ GimpDisplay *display);
+static void gimp_rectangle_select_tool_button_release (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonReleaseType release_type,
+ GimpDisplay *display);
+static void gimp_rectangle_select_tool_motion (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpDisplay *display);
+static gboolean gimp_rectangle_select_tool_key_press (GimpTool *tool,
+ GdkEventKey *kevent,
+ GimpDisplay *display);
+static void gimp_rectangle_select_tool_oper_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ gboolean proximity,
+ GimpDisplay *display);
+static void gimp_rectangle_select_tool_cursor_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ GimpDisplay *display);
+static void gimp_rectangle_select_tool_options_notify (GimpTool *tool,
+ GimpToolOptions *options,
+ const GParamSpec *pspec);
+
+static gboolean gimp_rectangle_select_tool_select (GimpRectangleSelectTool *rect_tool,
+ gint x,
+ gint y,
+ gint w,
+ gint h);
+static void gimp_rectangle_select_tool_real_select (GimpRectangleSelectTool *rect_tool,
+ GimpChannelOps operation,
+ gint x,
+ gint y,
+ gint w,
+ gint h);
+
+static void gimp_rectangle_select_tool_rectangle_response
+ (GimpToolWidget *widget,
+ gint response_id,
+ GimpRectangleSelectTool *rect_tool);
+static void gimp_rectangle_select_tool_rectangle_change_complete
+ (GimpToolWidget *widget,
+ GimpRectangleSelectTool *rect_tool);
+
+static void gimp_rectangle_select_tool_start (GimpRectangleSelectTool *rect_tool,
+ GimpDisplay *display);
+static void gimp_rectangle_select_tool_commit (GimpRectangleSelectTool *rect_tool);
+static void gimp_rectangle_select_tool_halt (GimpRectangleSelectTool *rect_tool);
+
+static GimpChannelOps
+ gimp_rectangle_select_tool_get_operation (GimpRectangleSelectTool *rect_tool);
+static void gimp_rectangle_select_tool_update_option_defaults
+ (GimpRectangleSelectTool *rect_tool,
+ gboolean ignore_pending);
+static void gimp_rectangle_select_tool_update (GimpRectangleSelectTool *rect_tool);
+static void gimp_rectangle_select_tool_auto_shrink (GimpRectangleSelectTool *rect_tool);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpRectangleSelectTool, gimp_rectangle_select_tool,
+ GIMP_TYPE_SELECTION_TOOL)
+
+#define parent_class gimp_rectangle_select_tool_parent_class
+
+
+void
+gimp_rectangle_select_tool_register (GimpToolRegisterCallback callback,
+ gpointer data)
+{
+ (* callback) (GIMP_TYPE_RECTANGLE_SELECT_TOOL,
+ GIMP_TYPE_RECTANGLE_SELECT_OPTIONS,
+ gimp_rectangle_select_options_gui,
+ 0,
+ "gimp-rect-select-tool",
+ _("Rectangle Select"),
+ _("Rectangle Select Tool: Select a rectangular region"),
+ N_("_Rectangle Select"), "R",
+ NULL, GIMP_HELP_TOOL_RECT_SELECT,
+ GIMP_ICON_TOOL_RECT_SELECT,
+ data);
+}
+
+static void
+gimp_rectangle_select_tool_class_init (GimpRectangleSelectToolClass *klass)
+{
+ GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
+
+ tool_class->control = gimp_rectangle_select_tool_control;
+ tool_class->button_press = gimp_rectangle_select_tool_button_press;
+ tool_class->button_release = gimp_rectangle_select_tool_button_release;
+ tool_class->motion = gimp_rectangle_select_tool_motion;
+ tool_class->key_press = gimp_rectangle_select_tool_key_press;
+ tool_class->oper_update = gimp_rectangle_select_tool_oper_update;
+ tool_class->cursor_update = gimp_rectangle_select_tool_cursor_update;
+ tool_class->options_notify = gimp_rectangle_select_tool_options_notify;
+
+ klass->select = gimp_rectangle_select_tool_real_select;
+}
+
+static void
+gimp_rectangle_select_tool_init (GimpRectangleSelectTool *rect_tool)
+{
+ GimpTool *tool = GIMP_TOOL (rect_tool);
+
+ rect_tool->private =
+ gimp_rectangle_select_tool_get_instance_private (rect_tool);
+
+ gimp_tool_control_set_wants_click (tool->control, TRUE);
+ gimp_tool_control_set_active_modifiers (tool->control,
+ GIMP_TOOL_ACTIVE_MODIFIERS_SEPARATE);
+ gimp_tool_control_set_precision (tool->control,
+ GIMP_CURSOR_PRECISION_PIXEL_BORDER);
+ gimp_tool_control_set_tool_cursor (tool->control,
+ GIMP_TOOL_CURSOR_RECT_SELECT);
+ gimp_tool_control_set_preserve (tool->control, FALSE);
+ gimp_tool_control_set_dirty_mask (tool->control,
+ GIMP_DIRTY_IMAGE_SIZE |
+ GIMP_DIRTY_SELECTION);
+ gimp_tool_control_set_dirty_action (tool->control,
+ GIMP_TOOL_ACTION_COMMIT);
+}
+
+static void
+gimp_rectangle_select_tool_control (GimpTool *tool,
+ GimpToolAction action,
+ GimpDisplay *display)
+{
+ GimpRectangleSelectTool *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+
+ switch (action)
+ {
+ case GIMP_TOOL_ACTION_PAUSE:
+ case GIMP_TOOL_ACTION_RESUME:
+ break;
+
+ case GIMP_TOOL_ACTION_HALT:
+ gimp_rectangle_select_tool_halt (rect_tool);
+ break;
+
+ case GIMP_TOOL_ACTION_COMMIT:
+ gimp_rectangle_select_tool_commit (rect_tool);
+ break;
+ }
+
+ GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
+}
+
+static void
+gimp_rectangle_select_tool_button_press (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonPressType press_type,
+ GimpDisplay *display)
+{
+ GimpRectangleSelectTool *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+ GimpRectangleSelectToolPrivate *private = rect_tool->private;
+ GimpRectangleFunction function;
+
+ if (tool->display && display != tool->display)
+ gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, tool->display);
+
+ if (gimp_selection_tool_start_edit (GIMP_SELECTION_TOOL (tool),
+ display, coords))
+ {
+ /* In some cases we want to finish the rectangle select tool
+ * and hand over responsibility to the selection tool
+ */
+
+ gboolean zero_rect = FALSE;
+
+ if (private->widget)
+ {
+ gdouble x1, y1, x2, y2;
+
+ gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (private->widget),
+ &x1, &y1, &x2, &y2);
+ if (x1 == x2 && y1 == y2)
+ zero_rect = TRUE;
+ }
+
+ /* Don't commit a zero-size rectangle, it would look like a
+ * click to commit() and that could anchor the floating
+ * selection or do other evil things. Instead, simply cancel a
+ * zero-size rectangle. See bug #796073.
+ */
+ if (zero_rect)
+ gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
+ else
+ gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, display);
+
+ gimp_rectangle_select_tool_update_option_defaults (rect_tool, TRUE);
+ return;
+ }
+
+ if (! tool->display)
+ {
+ gimp_rectangle_select_tool_start (rect_tool, display);
+
+ gimp_tool_widget_hover (private->widget, coords, state, TRUE);
+
+ /* HACK: force CREATING on a newly created rectangle; otherwise,
+ * the above binding of properties would cause the rectangle to
+ * start with the size from tool options.
+ */
+ gimp_tool_rectangle_set_function (GIMP_TOOL_RECTANGLE (private->widget),
+ GIMP_TOOL_RECTANGLE_CREATING);
+ }
+
+ /* if the shift or ctrl keys are down, we don't want to adjust, we
+ * want to create a new rectangle, regardless of pointer loc
+ */
+ if (state & (gimp_get_extend_selection_mask () |
+ gimp_get_modify_selection_mask ()))
+ {
+ gimp_tool_rectangle_set_function (GIMP_TOOL_RECTANGLE (private->widget),
+ GIMP_TOOL_RECTANGLE_CREATING);
+ }
+
+ if (gimp_tool_widget_button_press (private->widget, coords, time, state,
+ press_type))
+ {
+ private->grab_widget = private->widget;
+ }
+
+ private->press_x = coords->x;
+ private->press_y = coords->y;
+
+ /* if we have an existing rectangle in the current display, then
+ * we have already "executed", and need to undo at this point,
+ * unless the user has done something in the meantime
+ */
+ function =
+ gimp_tool_rectangle_get_function (GIMP_TOOL_RECTANGLE (private->widget));
+
+ if (function == GIMP_TOOL_RECTANGLE_CREATING)
+ private->use_saved_op = FALSE;
+
+ gimp_selection_tool_start_change (
+ GIMP_SELECTION_TOOL (tool),
+ function == GIMP_TOOL_RECTANGLE_CREATING,
+ gimp_rectangle_select_tool_get_operation (rect_tool));
+
+ gimp_tool_control_activate (tool->control);
+}
+
+static void
+gimp_rectangle_select_tool_button_release (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonReleaseType release_type,
+ GimpDisplay *display)
+{
+ GimpRectangleSelectTool *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+ GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+
+ gimp_tool_control_halt (tool->control);
+
+ gimp_selection_tool_end_change (GIMP_SELECTION_TOOL (tool),
+ /* if the user has not moved the mouse,
+ * cancel the change
+ */
+ release_type == GIMP_BUTTON_RELEASE_CLICK ||
+ release_type == GIMP_BUTTON_RELEASE_CANCEL);
+
+ gimp_tool_pop_status (tool, display);
+
+ if (priv->grab_widget)
+ {
+ gimp_tool_widget_button_release (priv->grab_widget,
+ coords, time, state, release_type);
+ priv->grab_widget = NULL;
+ }
+}
+
+static void
+gimp_rectangle_select_tool_motion (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpDisplay *display)
+{
+ GimpRectangleSelectTool *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+ GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+
+ if (priv->grab_widget)
+ {
+ gimp_tool_widget_motion (priv->grab_widget, coords, time, state);
+ }
+}
+
+static gboolean
+gimp_rectangle_select_tool_key_press (GimpTool *tool,
+ GdkEventKey *kevent,
+ GimpDisplay *display)
+{
+ GimpRectangleSelectTool *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+ GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+
+ if (priv->widget && display == tool->display)
+ {
+ if (gimp_tool_widget_key_press (priv->widget, kevent))
+ return TRUE;
+ }
+
+ return gimp_edit_selection_tool_key_press (tool, kevent, display);
+}
+
+static void
+gimp_rectangle_select_tool_oper_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ gboolean proximity,
+ GimpDisplay *display)
+{
+ GimpRectangleSelectTool *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+ GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+
+ if (priv->widget && display == tool->display)
+ {
+ gimp_tool_widget_hover (priv->widget, coords, state, proximity);
+ }
+
+ GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
+ display);
+}
+
+static void
+gimp_rectangle_select_tool_cursor_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ GimpDisplay *display)
+{
+ GimpRectangleSelectTool *rect_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
+ GimpRectangleSelectToolPrivate *private = rect_tool->private;
+ GimpCursorType cursor = GIMP_CURSOR_CROSSHAIR_SMALL;
+ GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_NONE;
+
+ if (private->widget && display == tool->display)
+ {
+ gimp_tool_widget_get_cursor (private->widget, coords, state,
+ &cursor, NULL, &modifier);
+ }
+
+ gimp_tool_control_set_cursor (tool->control, cursor);
+ gimp_tool_control_set_cursor_modifier (tool->control, modifier);
+
+ /* override the previous if shift or ctrl are down */
+ if (state & (gimp_get_extend_selection_mask () |
+ gimp_get_modify_selection_mask ()))
+ {
+ gimp_tool_control_set_cursor (tool->control,
+ GIMP_CURSOR_CROSSHAIR_SMALL);
+ }
+
+ GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
+}
+
+static void
+gimp_rectangle_select_tool_options_notify (GimpTool *tool,
+ GimpToolOptions *options,
+ const GParamSpec *pspec)
+{
+ if (! strcmp (pspec->name, "antialias") ||
+ ! strcmp (pspec->name, "feather") ||
+ ! strcmp (pspec->name, "feather-radius") ||
+ ! strcmp (pspec->name, "round-corners") ||
+ ! strcmp (pspec->name, "corner-radius"))
+ {
+ gimp_rectangle_select_tool_update (GIMP_RECTANGLE_SELECT_TOOL (tool));
+ }
+
+ GIMP_TOOL_CLASS (parent_class)->options_notify (tool, options, pspec);
+}
+
+static gboolean
+gimp_rectangle_select_tool_select (GimpRectangleSelectTool *rect_tool,
+ gint x,
+ gint y,
+ gint w,
+ gint h)
+{
+ GimpTool *tool = GIMP_TOOL (rect_tool);
+ GimpImage *image = gimp_display_get_image (tool->display);
+ gboolean rectangle_exists;
+ GimpChannelOps operation;
+
+ gimp_tool_pop_status (tool, tool->display);
+
+ rectangle_exists = (x <= gimp_image_get_width (image) &&
+ y <= gimp_image_get_height (image) &&
+ x + w >= 0 &&
+ y + h >= 0 &&
+ w > 0 &&
+ h > 0);
+
+ operation = gimp_rectangle_select_tool_get_operation (rect_tool);
+
+ /* if rectangle exists, turn it into a selection */
+ if (rectangle_exists)
+ {
+ gimp_selection_tool_start_change (GIMP_SELECTION_TOOL (rect_tool),
+ FALSE,
+ operation);
+
+ GIMP_RECTANGLE_SELECT_TOOL_GET_CLASS (rect_tool)->select (rect_tool,
+ operation,
+ x, y, w, h);
+
+ gimp_selection_tool_end_change (GIMP_SELECTION_TOOL (rect_tool),
+ FALSE);
+ }
+
+ return rectangle_exists;
+}
+
+static void
+gimp_rectangle_select_tool_real_select (GimpRectangleSelectTool *rect_tool,
+ GimpChannelOps operation,
+ gint x,
+ gint y,
+ gint w,
+ gint h)
+{
+ GimpTool *tool = GIMP_TOOL (rect_tool);
+ GimpSelectionOptions *options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
+ GimpRectangleSelectOptions *rect_options;
+ GimpChannel *channel;
+
+ rect_options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (tool);
+
+ channel = gimp_image_get_mask (gimp_display_get_image (tool->display));
+
+ if (rect_options->round_corners)
+ {
+ /* To prevent elliptification of the rectangle,
+ * we must cap the corner radius.
+ */
+ gdouble max = MIN (w / 2.0, h / 2.0);
+ gdouble radius = MIN (rect_options->corner_radius, max);
+
+ gimp_channel_select_round_rect (channel,
+ x, y, w, h,
+ radius, radius,
+ operation,
+ options->antialias,
+ options->feather,
+ options->feather_radius,
+ options->feather_radius,
+ TRUE);
+ }
+ else
+ {
+ gimp_channel_select_rectangle (channel,
+ x, y, w, h,
+ operation,
+ options->feather,
+ options->feather_radius,
+ options->feather_radius,
+ TRUE);
+ }
+}
+
+static void
+gimp_rectangle_select_tool_rectangle_response (GimpToolWidget *widget,
+ gint response_id,
+ GimpRectangleSelectTool *rect_tool)
+{
+ GimpTool *tool = GIMP_TOOL (rect_tool);
+
+ switch (response_id)
+ {
+ case GIMP_TOOL_WIDGET_RESPONSE_CONFIRM:
+ {
+ gdouble x1, y1, x2, y2;
+
+ gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (widget),
+ &x1, &y1, &x2, &y2);
+ if (x1 == x2 && y1 == y2)
+ {
+ /* if there are no extents, we got here because of a
+ * click, call commit() directly because we might want to
+ * reconfigure the rectangle and continue, instead of
+ * HALTing it like calling COMMIT would do
+ */
+ gimp_rectangle_select_tool_commit (rect_tool);
+
+ gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (widget),
+ &x1, &y1, &x2, &y2);
+ if (x1 == x2 && y1 == y2)
+ {
+ /* if there still is no rectangle after the
+ * tool_commit(), the click was outside the selection
+ * and we HALT to get rid of a zero-size tool widget.
+ */
+ gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
+ }
+ }
+ else
+ {
+ gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, tool->display);
+ }
+ }
+ break;
+
+ case GIMP_TOOL_WIDGET_RESPONSE_CANCEL:
+ gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
+ break;
+ }
+}
+
+static void
+gimp_rectangle_select_tool_rectangle_change_complete (GimpToolWidget *widget,
+ GimpRectangleSelectTool *rect_tool)
+{
+ gimp_rectangle_select_tool_update (rect_tool);
+}
+
+static void
+gimp_rectangle_select_tool_start (GimpRectangleSelectTool *rect_tool,
+ GimpDisplay *display)
+{
+ static const gchar *properties[] =
+ {
+ "highlight",
+ "highlight-opacity",
+ "guide",
+ "round-corners",
+ "corner-radius",
+ "x",
+ "y",
+ "width",
+ "height",
+ "fixed-rule-active",
+ "fixed-rule",
+ "desired-fixed-width",
+ "desired-fixed-height",
+ "desired-fixed-size-width",
+ "desired-fixed-size-height",
+ "aspect-numerator",
+ "aspect-denominator",
+ "fixed-center"
+ };
+
+ GimpTool *tool = GIMP_TOOL (rect_tool);
+ GimpRectangleSelectToolPrivate *private = rect_tool->private;
+ GimpDisplayShell *shell = gimp_display_get_shell (display);
+ GimpRectangleSelectOptions *options;
+ GimpToolWidget *widget;
+ gboolean draw_ellipse;
+ gint i;
+
+ options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (rect_tool);
+
+ tool->display = display;
+
+ private->widget = widget = gimp_tool_rectangle_new (shell);
+
+ draw_ellipse = GIMP_RECTANGLE_SELECT_TOOL_GET_CLASS (rect_tool)->draw_ellipse;
+
+ g_object_set (widget,
+ "draw-ellipse", draw_ellipse,
+ "status-title", draw_ellipse ? _("Ellipse: ") : _("Rectangle: "),
+ NULL);
+
+ gimp_draw_tool_set_widget (GIMP_DRAW_TOOL (tool), widget);
+
+ for (i = 0; i < G_N_ELEMENTS (properties); i++)
+ {
+ GBinding *binding =
+ g_object_bind_property (G_OBJECT (options), properties[i],
+ G_OBJECT (widget), properties[i],
+ G_BINDING_SYNC_CREATE |
+ G_BINDING_BIDIRECTIONAL);
+
+ private->bindings = g_list_prepend (private->bindings, binding);
+ }
+
+ gimp_rectangle_options_connect (GIMP_RECTANGLE_OPTIONS (options),
+ gimp_display_get_image (shell->display),
+ G_CALLBACK (gimp_rectangle_select_tool_auto_shrink),
+ rect_tool);
+
+ g_signal_connect (widget, "response",
+ G_CALLBACK (gimp_rectangle_select_tool_rectangle_response),
+ rect_tool);
+ g_signal_connect (widget, "change-complete",
+ G_CALLBACK (gimp_rectangle_select_tool_rectangle_change_complete),
+ rect_tool);
+
+ gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
+}
+
+/* This function is called if the user clicks and releases the left
+ * button without moving it. There are the things we might want
+ * to do here:
+ * 1) If there is an existing rectangle and we are inside it, we
+ * convert it into a selection.
+ * 2) If there is an existing rectangle and we are outside it, we
+ * clear it.
+ * 3) If there is no rectangle and there is a floating selection,
+ * we anchor it.
+ * 4) If there is no rectangle and we are inside the selection, we
+ * create a rectangle from the selection bounds.
+ * 5) If there is no rectangle and we are outside the selection,
+ * we clear the selection.
+ */
+static void
+gimp_rectangle_select_tool_commit (GimpRectangleSelectTool *rect_tool)
+{
+ GimpTool *tool = GIMP_TOOL (rect_tool);
+ GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+
+ if (priv->widget)
+ {
+ gdouble x1, y1, x2, y2;
+ gint w, h;
+
+ gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (priv->widget),
+ &x1, &y1, &x2, &y2);
+ w = x2 - x1;
+ h = y2 - y1;
+
+ if (w == 0 && h == 0)
+ {
+ GimpImage *image = gimp_display_get_image (tool->display);
+ GimpChannel *selection = gimp_image_get_mask (image);
+ gint press_x;
+ gint press_y;
+
+ if (gimp_image_get_floating_selection (image))
+ {
+ floating_sel_anchor (gimp_image_get_floating_selection (image));
+ gimp_image_flush (image);
+
+ return;
+ }
+
+ press_x = ROUND (priv->press_x);
+ press_y = ROUND (priv->press_y);
+
+ /* if the click was inside the marching ants */
+ if (gimp_pickable_get_opacity_at (GIMP_PICKABLE (selection),
+ press_x, press_y) > 0.5)
+ {
+ gint x, y, w, h;
+
+ if (gimp_item_bounds (GIMP_ITEM (selection), &x, &y, &w, &h))
+ {
+ g_object_set (priv->widget,
+ "x1", (gdouble) x,
+ "y1", (gdouble) y,
+ "x2", (gdouble) (x + w),
+ "y2", (gdouble) (y + h),
+ NULL);
+ }
+
+ gimp_rectangle_select_tool_update (rect_tool);
+ }
+ else
+ {
+ GimpChannelOps operation;
+
+ /* prevent this change from halting the tool */
+ gimp_tool_control_push_preserve (tool->control, TRUE);
+
+ /* We can conceptually think of a click outside of the
+ * selection as adding a 0px selection. Behave intuitively
+ * for the current selection mode
+ */
+ operation = gimp_rectangle_select_tool_get_operation (rect_tool);
+
+ switch (operation)
+ {
+ case GIMP_CHANNEL_OP_REPLACE:
+ case GIMP_CHANNEL_OP_INTERSECT:
+ gimp_channel_clear (selection, NULL, TRUE);
+ gimp_image_flush (image);
+ break;
+
+ case GIMP_CHANNEL_OP_ADD:
+ case GIMP_CHANNEL_OP_SUBTRACT:
+ default:
+ /* Do nothing */
+ break;
+ }
+
+ gimp_tool_control_pop_preserve (tool->control);
+ }
+ }
+
+ gimp_rectangle_select_tool_update_option_defaults (rect_tool, FALSE);
+ }
+}
+
+static void
+gimp_rectangle_select_tool_halt (GimpRectangleSelectTool *rect_tool)
+{
+ GimpTool *tool = GIMP_TOOL (rect_tool);
+ GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+ GimpRectangleSelectOptions *options;
+
+ options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (rect_tool);
+
+ if (tool->display)
+ {
+ GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
+
+ gimp_display_shell_set_highlight (shell, NULL, 0.0);
+
+ gimp_rectangle_options_disconnect (GIMP_RECTANGLE_OPTIONS (options),
+ G_CALLBACK (gimp_rectangle_select_tool_auto_shrink),
+ rect_tool);
+ }
+
+ if (gimp_draw_tool_is_active (GIMP_DRAW_TOOL (tool)))
+ gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
+
+ /* disconnect bindings manually so they are really gone *now*, we
+ * might be in the middle of a signal emission that keeps the
+ * widget and its bindings alive.
+ */
+ g_list_free_full (priv->bindings, (GDestroyNotify) g_object_unref);
+ priv->bindings = NULL;
+
+ gimp_draw_tool_set_widget (GIMP_DRAW_TOOL (tool), NULL);
+ g_clear_object (&priv->widget);
+
+ tool->display = NULL;
+
+ gimp_rectangle_select_tool_update_option_defaults (rect_tool, TRUE);
+}
+
+static GimpChannelOps
+gimp_rectangle_select_tool_get_operation (GimpRectangleSelectTool *rect_tool)
+{
+ GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+ GimpSelectionOptions *options;
+
+ options = GIMP_SELECTION_TOOL_GET_OPTIONS (rect_tool);
+
+ if (priv->use_saved_op)
+ return priv->operation;
+ else
+ return options->operation;
+}
+
+/**
+ * gimp_rectangle_select_tool_update_option_defaults:
+ * @crop_tool:
+ * @ignore_pending: %TRUE to ignore any pending crop rectangle.
+ *
+ * Sets the default Fixed: Aspect ratio and Fixed: Size option
+ * properties.
+ */
+static void
+gimp_rectangle_select_tool_update_option_defaults (GimpRectangleSelectTool *rect_tool,
+ gboolean ignore_pending)
+{
+ GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+ GimpTool *tool = GIMP_TOOL (rect_tool);
+ GimpRectangleOptions *rect_options;
+
+ rect_options = GIMP_RECTANGLE_OPTIONS (gimp_tool_get_options (tool));
+
+ if (priv->widget && ! ignore_pending)
+ {
+ /* There is a pending rectangle and we should not ignore it, so
+ * set default Fixed: Size to the same as the current pending
+ * rectangle width/height.
+ */
+
+ gimp_tool_rectangle_pending_size_set (GIMP_TOOL_RECTANGLE (priv->widget),
+ G_OBJECT (rect_options),
+ "default-aspect-numerator",
+ "default-aspect-denominator");
+
+ g_object_set (G_OBJECT (rect_options),
+ "use-string-current", TRUE,
+ NULL);
+ }
+ else
+ {
+ g_object_set (G_OBJECT (rect_options),
+ "default-aspect-numerator", 1.0,
+ "default-aspect-denominator", 1.0,
+ NULL);
+
+ g_object_set (G_OBJECT (rect_options),
+ "use-string-current", FALSE,
+ NULL);
+ }
+}
+
+static void
+gimp_rectangle_select_tool_update (GimpRectangleSelectTool *rect_tool)
+{
+ GimpTool *tool = GIMP_TOOL (rect_tool);
+ GimpRectangleSelectToolPrivate *priv = rect_tool->private;
+
+ /* prevent change in selection from halting the tool */
+ gimp_tool_control_push_preserve (tool->control, TRUE);
+
+ if (tool->display && ! gimp_tool_control_is_active (tool->control))
+ {
+ gdouble x1, y1, x2, y2;
+
+ gimp_tool_rectangle_get_public_rect (GIMP_TOOL_RECTANGLE (priv->widget),
+ &x1, &y1, &x2, &y2);
+
+ gimp_rectangle_select_tool_select (rect_tool,
+ x1, y1, x2 - x1, y2 - y1);
+
+ if (! priv->use_saved_op)
+ {
+ GimpSelectionOptions *options;
+
+ options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
+
+ /* remember the operation now in case we modify the rectangle */
+ priv->operation = options->operation;
+ priv->use_saved_op = TRUE;
+ }
+ }
+
+ gimp_tool_control_pop_preserve (tool->control);
+
+ gimp_rectangle_select_tool_update_option_defaults (rect_tool, FALSE);
+}
+
+static void
+gimp_rectangle_select_tool_auto_shrink (GimpRectangleSelectTool *rect_tool)
+{
+ GimpRectangleSelectToolPrivate *private = rect_tool->private;
+ gboolean shrink_merged;
+
+ g_object_get (gimp_tool_get_options (GIMP_TOOL (rect_tool)),
+ "shrink-merged", &shrink_merged,
+ NULL);
+
+ gimp_tool_rectangle_auto_shrink (GIMP_TOOL_RECTANGLE (private->widget),
+ shrink_merged);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 16:36:50 +0000