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gimp/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 <http://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 "base/boundary.h"
#include "core/gimpchannel.h"
#include "core/gimpchannel-select.h"
#include "core/gimplayer-floating-sel.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimppickable.h"
#include "core/gimp-utils.h"
#include "core/gimpundostack.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "widgets/gimpwidgets-utils.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpdisplayshell-transform.h"
#include "display/gimpdisplayshell-appearance.h"
#include "gimpeditselectiontool.h"
#include "gimpselectiontool.h"
#include "gimpselectionoptions.h"
#include "gimprectangletool.h"
#include "gimprectangleoptions.h"
#include "gimprectangleselecttool.h"
#include "gimprectangleselectoptions.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
typedef struct GimpRectangleSelectToolPrivate
{
GimpChannelOps operation; /* remember for use when modifying */
gboolean use_saved_op; /* use operation or get from options */
gboolean saved_show_selection; /* used to remember existing value */
GimpUndo *undo;
GimpUndo *redo;
gboolean round_corners;
gdouble corner_radius;
gdouble press_x;
gdouble press_y;
} GimpRectangleSelectToolPrivate;
#define GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE(obj) \
((GimpRectangleSelectToolPrivate *) ((GimpRectangleSelectTool *) (obj))->priv)
static void gimp_rectangle_select_tool_rectangle_tool_iface_init (GimpRectangleToolInterface *iface);
static GObject *gimp_rectangle_select_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
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_active_modifier_key
(GimpTool *tool,
GdkModifierType key,
gboolean press,
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_draw (GimpDrawTool *draw_tool);
static gboolean gimp_rectangle_select_tool_select (GimpRectangleTool *rect_tool,
gint x,
gint y,
gint w,
gint h);
static gboolean gimp_rectangle_select_tool_execute (GimpRectangleTool *rect_tool,
gint x,
gint y,
gint w,
gint h);
static void gimp_rectangle_select_tool_cancel (GimpRectangleTool *rect_tool);
static gboolean gimp_rectangle_select_tool_rectangle_change_complete
(GimpRectangleTool *rect_tool);
static void gimp_rectangle_select_tool_real_select (GimpRectangleSelectTool *rect_sel_tool,
GimpChannelOps operation,
gint x,
gint y,
gint w,
gint h);
static GimpChannelOps
gimp_rectangle_select_tool_get_operation (GimpRectangleSelectTool *rect_sel_tool);
static void gimp_rectangle_select_tool_update_option_defaults
(GimpRectangleSelectTool *rect_sel_tool,
gboolean ignore_pending);
static void gimp_rectangle_select_tool_round_corners_notify
(GimpRectangleSelectOptions *options,
GParamSpec *pspec,
GimpRectangleSelectTool *rect_sel_tool);
G_DEFINE_TYPE_WITH_CODE (GimpRectangleSelectTool, gimp_rectangle_select_tool,
GIMP_TYPE_SELECTION_TOOL,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_RECTANGLE_TOOL,
gimp_rectangle_select_tool_rectangle_tool_iface_init))
#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_STOCK_TOOL_RECT_SELECT,
data);
}
static void
gimp_rectangle_select_tool_class_init (GimpRectangleSelectToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
g_type_class_add_private (klass, sizeof (GimpRectangleSelectToolPrivate));
object_class->constructor = gimp_rectangle_select_tool_constructor;
object_class->set_property = gimp_rectangle_tool_set_property;
object_class->get_property = gimp_rectangle_tool_get_property;
gimp_rectangle_tool_install_properties (object_class);
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_tool_motion;
tool_class->key_press = gimp_rectangle_select_tool_key_press;
tool_class->active_modifier_key = gimp_rectangle_select_tool_active_modifier_key;
tool_class->oper_update = gimp_rectangle_select_tool_oper_update;
tool_class->cursor_update = gimp_rectangle_select_tool_cursor_update;
draw_tool_class->draw = gimp_rectangle_select_tool_draw;
klass->select = gimp_rectangle_select_tool_real_select;
}
static void
gimp_rectangle_select_tool_rectangle_tool_iface_init (GimpRectangleToolInterface *iface)
{
iface->execute = gimp_rectangle_select_tool_execute;
iface->cancel = gimp_rectangle_select_tool_cancel;
iface->rectangle_change_complete = gimp_rectangle_select_tool_rectangle_change_complete;
}
static void
gimp_rectangle_select_tool_init (GimpRectangleSelectTool *rect_sel_tool)
{
GimpTool *tool = GIMP_TOOL (rect_sel_tool);
GimpRectangleSelectToolPrivate *priv;
gimp_rectangle_tool_init (GIMP_RECTANGLE_TOOL (rect_sel_tool));
rect_sel_tool->priv = G_TYPE_INSTANCE_GET_PRIVATE (rect_sel_tool,
GIMP_TYPE_RECTANGLE_SELECT_TOOL,
GimpRectangleSelectToolPrivate);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
gimp_tool_control_set_wants_click (tool->control, TRUE);
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_dirty_mask (tool->control,
GIMP_DIRTY_IMAGE_SIZE |
GIMP_DIRTY_SELECTION);
priv->undo = NULL;
priv->redo = NULL;
priv->press_x = 0.0;
priv->press_y = 0.0;
}
static GObject *
gimp_rectangle_select_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectOptions *options;
GimpRectangleSelectToolPrivate *priv;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
gimp_rectangle_tool_constructor (object);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (object);
options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (rect_sel_tool);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
priv->round_corners = options->round_corners;
priv->corner_radius = options->corner_radius;
g_signal_connect_object (options, "notify::round-corners",
G_CALLBACK (gimp_rectangle_select_tool_round_corners_notify),
object, 0);
g_signal_connect_object (options, "notify::corner-radius",
G_CALLBACK (gimp_rectangle_select_tool_round_corners_notify),
object, 0);
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool, FALSE);
return object;
}
static void
gimp_rectangle_select_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
gimp_rectangle_tool_control (tool, action, display);
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_rectangle_select_tool_draw (GimpDrawTool *draw_tool)
{
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (draw_tool);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
gimp_rectangle_tool_draw (draw_tool);
if (priv->round_corners)
{
gint x1, y1, x2, y2;
gdouble radius;
gint square_size;
g_object_get (rect_sel_tool,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
radius = MIN (priv->corner_radius,
MIN ((x2 - x1) / 2.0, (y2 - y1) / 2.0));
square_size = (int) (radius * 2);
gimp_draw_tool_draw_arc (draw_tool, FALSE,
x1, y1,
square_size, square_size,
90 * 64, 90 * 64,
FALSE);
gimp_draw_tool_draw_arc (draw_tool, FALSE,
x2 - square_size, y1,
square_size, square_size,
0, 90 * 64,
FALSE);
gimp_draw_tool_draw_arc (draw_tool, FALSE,
x2 - square_size, y2 - square_size,
square_size, square_size,
270 * 64, 90 * 64,
FALSE);
gimp_draw_tool_draw_arc (draw_tool, FALSE,
x1, y2 - square_size,
square_size, square_size,
180 * 64, 90 * 64,
FALSE);
}
}
static gboolean
gimp_rectangle_select_tool_delegate_button_press (GimpRectangleSelectTool *rect_sel_tool,
const GimpCoords *coords,
GimpDisplay *display)
{
GimpTool *tool = GIMP_TOOL (rect_sel_tool);
gboolean button_press_delegated = FALSE;
GimpDisplay *old_display = tool->display;
tool->display = display;
if (! gimp_tool_control_is_active (tool->control))
{
gimp_tool_control_activate (tool->control);
}
button_press_delegated
= gimp_selection_tool_start_edit (GIMP_SELECTION_TOOL (tool),
coords);
if (gimp_tool_control_is_active (tool->control))
{
gimp_tool_control_halt (tool->control);
}
tool->display = old_display;
return button_press_delegated;
}
static void
gimp_rectangle_select_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display)
{
GimpRectangleTool *rectangle;
GimpRectangleSelectTool *rect_sel_tool;
GimpDisplayShell *shell;
GimpRectangleSelectToolPrivate *priv;
GimpRectangleFunction function;
rectangle = GIMP_RECTANGLE_TOOL (tool);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
shell = gimp_display_get_shell (display);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
if (tool->display && display != tool->display)
{
gimp_rectangle_tool_cancel (GIMP_RECTANGLE_TOOL (tool));
}
if (gimp_rectangle_select_tool_delegate_button_press (rect_sel_tool,
coords,
display))
{
/* In some cases we want to finnish the rectangle select tool
* and hand over responsability to the selection tool
*/
gimp_rectangle_tool_execute (rectangle);
gimp_rectangle_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool,
TRUE);
return;
}
function = gimp_rectangle_tool_get_function (rectangle);
priv->saved_show_selection = gimp_display_shell_get_show_selection (shell);
/* 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 & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))
gimp_rectangle_tool_set_function (rectangle, GIMP_RECTANGLE_TOOL_CREATING);
gimp_rectangle_tool_button_press (tool, coords, time, state, display);
priv->press_x = coords->x;
priv->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_rectangle_tool_get_function (rectangle);
if (function == GIMP_RECTANGLE_TOOL_CREATING)
{
priv->use_saved_op = FALSE;
}
else
{
GimpImage *image = gimp_display_get_image (tool->display);
GimpUndoStack *undo_stack = gimp_image_get_undo_stack (image);
GimpUndoStack *redo_stack = gimp_image_get_redo_stack (image);
GimpUndo *undo;
GimpChannelOps operation;
undo = gimp_undo_stack_peek (undo_stack);
if (undo && priv->undo == undo)
{
/* prevent this change from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_undo (image);
gimp_tool_control_set_preserve (tool->control, FALSE);
/* we will need to redo if the user cancels or executes */
priv->redo = gimp_undo_stack_peek (redo_stack);
}
/* if the operation is "Replace", turn off the marching ants,
because they are confusing */
operation = gimp_rectangle_select_tool_get_operation (rect_sel_tool);
if (operation == GIMP_CHANNEL_OP_REPLACE)
gimp_display_shell_set_show_selection (shell, FALSE);
}
priv->undo = NULL;
}
static void
gimp_rectangle_select_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
GimpImage *image;
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
image = gimp_display_get_image (tool->display);
gimp_tool_pop_status (tool, display);
gimp_display_shell_set_show_selection (gimp_display_get_shell (display),
priv->saved_show_selection);
/*
* if the user has not moved the mouse, we need to redo the operation
* that was undone on button press.
*/
if (release_type == GIMP_BUTTON_RELEASE_CLICK)
{
GimpUndoStack *redo_stack = gimp_image_get_redo_stack (image);
GimpUndo *redo = gimp_undo_stack_peek (redo_stack);
if (redo && priv->redo == redo)
{
/* prevent this from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_redo (image);
priv->redo = NULL;
gimp_tool_control_set_preserve (tool->control, FALSE);
}
}
gimp_rectangle_tool_button_release (tool, coords, time, state, release_type,
display);
if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
{
if (priv->redo)
{
/* prevent this from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_redo (image);
gimp_tool_control_set_preserve (tool->control, FALSE);
}
priv->use_saved_op = TRUE; /* is this correct? */
}
priv->redo = NULL;
}
static void
gimp_rectangle_select_tool_active_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display)
{
GIMP_TOOL_CLASS (parent_class)->active_modifier_key (tool, key, press, state,
display);
gimp_rectangle_tool_active_modifier_key (tool, key, press, state, display);
}
static gboolean
gimp_rectangle_select_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display)
{
return (gimp_rectangle_tool_key_press (tool, kevent, display) ||
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)
{
GimpRectangleFunction function;
gimp_rectangle_tool_oper_update (tool, coords, state, proximity, display);
function = gimp_rectangle_tool_get_function (GIMP_RECTANGLE_TOOL (tool));
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)
{
gimp_rectangle_tool_cursor_update (tool, coords, state, display);
/* override the previous if shift or ctrl are down */
if (state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))
gimp_tool_control_set_cursor (tool->control, GIMP_CURSOR_CROSSHAIR_SMALL);
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static gboolean
gimp_rectangle_select_tool_select (GimpRectangleTool *rectangle,
gint x,
gint y,
gint w,
gint h)
{
GimpTool *tool;
GimpRectangleSelectTool *rect_sel_tool;
GimpImage *image;
gboolean rectangle_exists;
GimpChannelOps operation;
tool = GIMP_TOOL (rectangle);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (rectangle);
image = gimp_display_get_image (tool->display);
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_sel_tool);
/* if rectangle exists, turn it into a selection */
if (rectangle_exists)
GIMP_RECTANGLE_SELECT_TOOL_GET_CLASS (rect_sel_tool)->select (rect_sel_tool,
operation,
x, y, w, h);
return rectangle_exists;
}
static void
gimp_rectangle_select_tool_real_select (GimpRectangleSelectTool *rect_sel_tool,
GimpChannelOps operation,
gint x,
gint y,
gint w,
gint h)
{
GimpTool *tool = GIMP_TOOL (rect_sel_tool);
GimpSelectionOptions *options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
GimpRectangleSelectOptions *rect_select_options;
GimpChannel *channel;
rect_select_options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (tool);
channel = gimp_image_get_mask (gimp_display_get_image (tool->display));
if (rect_select_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_select_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 GimpChannelOps
gimp_rectangle_select_tool_get_operation (GimpRectangleSelectTool *rect_sel_tool)
{
GimpRectangleSelectToolPrivate *priv;
GimpSelectionOptions *options;
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
options = GIMP_SELECTION_TOOL_GET_OPTIONS (rect_sel_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_sel_tool,
gboolean ignore_pending)
{
GimpTool *tool;
GimpRectangleTool *rectangle_tool;
GimpRectangleOptions *rectangle_options;
tool = GIMP_TOOL (rect_sel_tool);
rectangle_tool = GIMP_RECTANGLE_TOOL (tool);
rectangle_options = GIMP_RECTANGLE_TOOL_GET_OPTIONS (rectangle_tool);
if (tool->display != NULL && !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_rectangle_tool_pending_size_set (rectangle_tool,
G_OBJECT (rectangle_options),
"default-aspect-numerator",
"default-aspect-denominator");
g_object_set (G_OBJECT (rectangle_options),
"use-string-current", TRUE,
NULL);
}
else
{
g_object_set (G_OBJECT (rectangle_options),
"default-aspect-numerator", 1.0,
"default-aspect-denominator", 1.0,
NULL);
g_object_set (G_OBJECT (rectangle_options),
"use-string-current", FALSE,
NULL);
}
}
/*
* 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 gboolean
gimp_rectangle_select_tool_execute (GimpRectangleTool *rectangle,
gint x,
gint y,
gint w,
gint h)
{
GimpTool *tool = GIMP_TOOL (rectangle);
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (rectangle);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
if (w == 0 && h == 0 && tool->display != NULL)
{
GimpImage *image = gimp_display_get_image (tool->display);
GimpChannel *selection = gimp_image_get_mask (image);
gint pressx;
gint pressy;
if (gimp_image_get_floating_selection (image))
{
floating_sel_anchor (gimp_image_get_floating_selection (image));
gimp_image_flush (image);
return TRUE;
}
pressx = ROUND (priv->press_x);
pressy = ROUND (priv->press_y);
/* if the click was inside the marching ants */
if (gimp_pickable_get_opacity_at (GIMP_PICKABLE (selection),
pressx, pressy) > BOUNDARY_HALF_WAY)
{
gint x1, y1, x2, y2;
if (gimp_channel_bounds (selection, &x1, &y1, &x2, &y2))
{
g_object_set (rectangle,
"x1", x1,
"y1", y1,
"x2", x2,
"y2", y2,
NULL);
}
gimp_rectangle_tool_set_function (rectangle,
GIMP_RECTANGLE_TOOL_MOVING);
return FALSE;
}
else
{
GimpTool *tool = GIMP_TOOL (rectangle);
GimpChannelOps operation;
/* prevent this change from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
/* We can conceptually think of a click outside of the
* selection as adding a 0px selection. Behave intuitivly
* for the current selection mode
*/
operation = gimp_rectangle_select_tool_get_operation (rect_sel_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_set_preserve (tool->control, FALSE);
}
}
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool, FALSE);
/* Reset the automatic undo/redo mechanism */
priv->undo = NULL;
priv->redo = NULL;
return TRUE;
}
static void
gimp_rectangle_select_tool_cancel (GimpRectangleTool *rectangle)
{
GimpTool *tool;
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
tool = GIMP_TOOL (rectangle);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (rectangle);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
if (tool->display)
{
GimpImage *image = gimp_display_get_image (tool->display);
GimpUndoStack *undo_stack = gimp_image_get_undo_stack (image);
GimpUndo *undo = gimp_undo_stack_peek (undo_stack);
/* 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
*/
if (undo && priv->undo == undo)
{
/* prevent this change from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_undo (image);
gimp_image_flush (image);
gimp_tool_control_set_preserve (tool->control, FALSE);
}
}
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool, TRUE);
priv->undo = NULL;
priv->redo = NULL;
}
static gboolean
gimp_rectangle_select_tool_rectangle_change_complete (GimpRectangleTool *rectangle)
{
GimpTool *tool;
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
tool = GIMP_TOOL (rectangle);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
/* prevent change in selection from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
if (tool->display && ! gimp_tool_control_is_active (tool->control))
{
GimpImage *image = gimp_display_get_image (tool->display);
GimpUndoStack *undo_stack = gimp_image_get_undo_stack (image);
GimpUndo *undo = gimp_undo_stack_peek (undo_stack);
gint x1, y1, x2, y2;
/* if we got here via button release, we have already undone the
* previous operation. But if we got here by some other means,
* we need to undo it now.
*/
if (undo && priv->undo == undo)
{
gimp_image_undo (image);
priv->undo = NULL;
}
g_object_get (rectangle,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
if (gimp_rectangle_select_tool_select (rectangle, x1, y1, x2 - x1, y2 - y1))
{
/* save the undo that we got when executing, but only if
* we actually selected something
*/
priv->undo = gimp_undo_stack_peek (undo_stack);
priv->redo = NULL;
}
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_image_flush (image);
}
gimp_tool_control_set_preserve (tool->control, FALSE);
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool, FALSE);
return TRUE;
}
static void
gimp_rectangle_select_tool_round_corners_notify (GimpRectangleSelectOptions *options,
GParamSpec *pspec,
GimpRectangleSelectTool *rect_sel_tool)
{
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (rect_sel_tool);
GimpRectangleTool *rect_tool = GIMP_RECTANGLE_TOOL (rect_sel_tool);
GimpRectangleSelectToolPrivate *priv;
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
gimp_draw_tool_pause (draw_tool);
priv->round_corners = options->round_corners;
priv->corner_radius = options->corner_radius;
gimp_rectangle_select_tool_rectangle_change_complete (rect_tool);
gimp_draw_tool_resume (draw_tool);
}
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