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gimp/app/tools/gimpeditselectiontool.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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <stdarg.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "base/boundary.h"
#include "core/gimp.h"
#include "core/gimpimage.h"
#include "core/gimpimage-guides.h"
#include "core/gimpimage-item-list.h"
#include "core/gimpimage-undo.h"
#include "core/gimpitem-linked.h"
#include "core/gimplayer.h"
#include "core/gimplayermask.h"
#include "core/gimpprojection.h"
#include "core/gimpselection.h"
#include "core/gimpundostack.h"
#include "vectors/gimpvectors.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpdisplayshell-appearance.h"
#include "display/gimpdisplayshell-selection.h"
#include "display/gimpdisplayshell-transform.h"
#include "gimpdrawtool.h"
#include "gimpeditselectiontool.h"
#include "gimptoolcontrol.h"
#include "tool_manager.h"
#include "tools-utils.h"
#include "gimp-intl.h"
#define EDIT_SELECT_SCROLL_LOCK FALSE
#define ARROW_VELOCITY 25
#define CENTER_CROSS_SIZE 7
typedef struct _GimpEditSelectionTool
{
GimpDrawTool parent_instance;
gint origx, origy; /* Last x and y coords */
gint cumlx, cumly; /* Cumulative changes to x and yed */
gint x, y; /* Current x and y coords */
gint num_segs_in; /* Num seg in selection boundary */
gint num_segs_out; /* Num seg in selection boundary */
BoundSeg *segs_in; /* Pointer to the channel sel. segs */
BoundSeg *segs_out; /* Pointer to the channel sel. segs */
gint x1, y1; /* Bounding box of selection mask */
gint x2, y2;
gdouble center_x; /* Where to draw the mark of center */
gdouble center_y;
GimpTranslateMode edit_mode; /* Translate the mask or layer? */
gboolean first_move; /* Don't push undos after the first */
gboolean propagate_release;
gboolean constrain; /* Constrain the movement */
gdouble start_x, start_y;/* Coords when button was pressed */
gdouble last_x, last_y; /* Previous coords sent to _motion */
} GimpEditSelectionTool;
typedef struct _GimpEditSelectionToolClass
{
GimpDrawToolClass parent_class;
} GimpEditSelectionToolClass;
static void gimp_edit_selection_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display);
static void gimp_edit_selection_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static void gimp_edit_selection_tool_active_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display);
static void gimp_edit_selection_tool_draw (GimpDrawTool *tool);
static GimpItem * gimp_edit_selection_tool_get_active_item (const GimpEditSelectionTool *edit_select,
const GimpImage *image);
G_DEFINE_TYPE (GimpEditSelectionTool, gimp_edit_selection_tool,
GIMP_TYPE_DRAW_TOOL)
#define parent_class gimp_edit_selection_tool_parent_class
static void
gimp_edit_selection_tool_class_init (GimpEditSelectionToolClass *klass)
{
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpDrawToolClass *draw_class = GIMP_DRAW_TOOL_CLASS (klass);
tool_class->button_release = gimp_edit_selection_tool_button_release;
tool_class->motion = gimp_edit_selection_tool_motion;
tool_class->active_modifier_key = gimp_edit_selection_tool_active_modifier_key;
draw_class->draw = gimp_edit_selection_tool_draw;
}
static void
gimp_edit_selection_tool_init (GimpEditSelectionTool *edit_selection_tool)
{
GimpTool *tool = GIMP_TOOL (edit_selection_tool);
gimp_tool_control_set_scroll_lock (tool->control, EDIT_SELECT_SCROLL_LOCK);
gimp_tool_control_set_motion_mode (tool->control, GIMP_MOTION_MODE_COMPRESS);
gimp_tool_control_set_precision (tool->control,
GIMP_CURSOR_PRECISION_PIXEL_BORDER);
edit_selection_tool->origx = 0;
edit_selection_tool->origy = 0;
edit_selection_tool->cumlx = 0;
edit_selection_tool->cumly = 0;
edit_selection_tool->first_move = TRUE;
edit_selection_tool->constrain = FALSE;
}
static void
gimp_edit_selection_tool_calc_coords (GimpEditSelectionTool *edit_select,
gdouble x,
gdouble y)
{
gdouble x1, y1;
gdouble dx, dy;
dx = x - edit_select->origx;
dy = y - edit_select->origy;
x1 = edit_select->x1 + dx;
y1 = edit_select->y1 + dy;
edit_select->x = (gint) floor (x1) - (edit_select->x1 - edit_select->origx);
edit_select->y = (gint) floor (y1) - (edit_select->y1 - edit_select->origy);
}
void
gimp_edit_selection_tool_start (GimpTool *parent_tool,
GimpDisplay *display,
const GimpCoords *coords,
GimpTranslateMode edit_mode,
gboolean propagate_release)
{
GimpEditSelectionTool *edit_select;
GimpTool *tool;
GimpDisplayShell *shell;
GimpItem *active_item;
GimpChannel *channel;
gint off_x, off_y;
const BoundSeg *segs_in;
const BoundSeg *segs_out;
gint num_groups;
const gchar *undo_desc;
edit_select = g_object_new (GIMP_TYPE_EDIT_SELECTION_TOOL,
"tool-info", parent_tool->tool_info,
NULL);
edit_select->propagate_release = propagate_release;
tool = GIMP_TOOL (edit_select);
shell = GIMP_DISPLAY_SHELL (display->shell);
/* Make a check to see if it should be a floating selection translation */
if ((edit_mode == GIMP_TRANSLATE_MODE_MASK_TO_LAYER ||
edit_mode == GIMP_TRANSLATE_MODE_MASK_COPY_TO_LAYER) &&
gimp_image_get_floating_selection (display->image))
{
edit_mode = GIMP_TRANSLATE_MODE_FLOATING_SEL;
}
if (edit_mode == GIMP_TRANSLATE_MODE_LAYER)
{
GimpLayer *layer = gimp_image_get_active_layer (display->image);
if (gimp_layer_is_floating_sel (layer))
edit_mode = GIMP_TRANSLATE_MODE_FLOATING_SEL;
}
edit_select->edit_mode = edit_mode;
active_item = gimp_edit_selection_tool_get_active_item (edit_select,
display->image);
switch (edit_select->edit_mode)
{
case GIMP_TRANSLATE_MODE_VECTORS:
case GIMP_TRANSLATE_MODE_CHANNEL:
case GIMP_TRANSLATE_MODE_LAYER_MASK:
case GIMP_TRANSLATE_MODE_LAYER:
undo_desc = GIMP_ITEM_GET_CLASS (active_item)->translate_desc;
break;
case GIMP_TRANSLATE_MODE_MASK:
undo_desc = _("Move Selection");
break;
default:
undo_desc = _("Move Floating Selection");
break;
}
gimp_image_undo_group_start (display->image,
edit_select->edit_mode ==
GIMP_TRANSLATE_MODE_MASK ?
GIMP_UNDO_GROUP_MASK :
GIMP_UNDO_GROUP_ITEM_DISPLACE,
undo_desc);
gimp_item_get_offset (active_item, &off_x, &off_y);
edit_select->x = edit_select->origx = coords->x - off_x;
edit_select->y = edit_select->origy = coords->y - off_y;
/* Remember starting point for use in constrained movement */
edit_select->start_x = coords->x;
edit_select->start_y = coords->y;
edit_select->constrain = FALSE;
switch (edit_select->edit_mode)
{
case GIMP_TRANSLATE_MODE_CHANNEL:
case GIMP_TRANSLATE_MODE_LAYER_MASK:
channel = GIMP_CHANNEL (active_item);
break;
default:
channel = gimp_image_get_mask (display->image);
break;
}
gimp_channel_boundary (channel,
&segs_in, &segs_out,
&edit_select->num_segs_in, &edit_select->num_segs_out,
0, 0, 0, 0);
edit_select->segs_in = boundary_sort (segs_in, edit_select->num_segs_in,
&num_groups);
edit_select->num_segs_in += num_groups;
edit_select->segs_out = boundary_sort (segs_out, edit_select->num_segs_out,
&num_groups);
edit_select->num_segs_out += num_groups;
if (edit_select->edit_mode == GIMP_TRANSLATE_MODE_VECTORS)
{
edit_select->x1 = 0;
edit_select->y1 = 0;
edit_select->x2 = gimp_image_get_width (display->image);
edit_select->y2 = gimp_image_get_height (display->image);
}
else
{
/* find the bounding box of the selection mask -
* this is used for the case of a GIMP_TRANSLATE_MODE_MASK_TO_LAYER,
* where the translation will result in floating the selection
* mask and translating the resulting layer
*/
gimp_drawable_mask_bounds (GIMP_DRAWABLE (active_item),
&edit_select->x1, &edit_select->y1,
&edit_select->x2, &edit_select->y2);
}
gimp_edit_selection_tool_calc_coords (edit_select,
edit_select->origx,
edit_select->origy);
{
gint x1, y1, x2, y2;
switch (edit_select->edit_mode)
{
case GIMP_TRANSLATE_MODE_CHANNEL:
gimp_channel_bounds (GIMP_CHANNEL (active_item),
&x1, &y1, &x2, &y2);
break;
case GIMP_TRANSLATE_MODE_LAYER_MASK:
gimp_channel_bounds (GIMP_CHANNEL (active_item),
&x1, &y1, &x2, &y2);
x1 += off_x;
y1 += off_y;
x2 += off_x;
y2 += off_y;
break;
case GIMP_TRANSLATE_MODE_MASK:
gimp_channel_bounds (gimp_image_get_mask (display->image),
&x1, &y1, &x2, &y2);
break;
case GIMP_TRANSLATE_MODE_MASK_TO_LAYER:
case GIMP_TRANSLATE_MODE_MASK_COPY_TO_LAYER:
x1 = edit_select->x1 + off_x;
y1 = edit_select->y1 + off_y;
x2 = edit_select->x2 + off_x;
y2 = edit_select->y2 + off_y;
break;
case GIMP_TRANSLATE_MODE_LAYER:
case GIMP_TRANSLATE_MODE_FLOATING_SEL:
x1 = off_x;
y1 = off_y;
x2 = x1 + gimp_item_get_width (active_item);
y2 = y1 + gimp_item_get_height (active_item);
if (gimp_item_get_linked (active_item))
{
GList *linked;
GList *list;
linked = gimp_image_item_list_get_list (display->image,
active_item,
GIMP_ITEM_TYPE_LAYERS,
GIMP_ITEM_SET_LINKED);
/* Expand the rectangle to include all linked layers as well */
for (list = linked; list; list = g_list_next (list))
{
GimpItem *item = list->data;
gint x3, y3;
gint x4, y4;
gimp_item_get_offset (item, &x3, &y3);
x4 = x3 + gimp_item_get_width (item);
y4 = y3 + gimp_item_get_height (item);
if (x3 < x1)
x1 = x3;
if (y3 < y1)
y1 = y3;
if (x4 > x2)
x2 = x4;
if (y4 > y2)
y2 = y4;
}
g_list_free (linked);
}
break;
case GIMP_TRANSLATE_MODE_VECTORS:
{
gdouble xd1, yd1, xd2, yd2;
gimp_vectors_bounds (GIMP_VECTORS (active_item),
&xd1, &yd1, &xd2, &yd2);
if (gimp_item_get_linked (active_item))
{
/* Expand the rectangle to include all linked layers as well */
GList *linked;
GList *list;
linked = gimp_image_item_list_get_list (display->image,
active_item,
GIMP_ITEM_TYPE_VECTORS,
GIMP_ITEM_SET_LINKED);
for (list = linked; list; list = g_list_next (list))
{
GimpItem *item = list->data;
gdouble x3, y3;
gdouble x4, y4;
gimp_vectors_bounds (GIMP_VECTORS (item), &x3, &y3, &x4, &y4);
if (x3 < xd1)
xd1 = x3;
if (y3 < yd1)
yd1 = y3;
if (x4 > xd2)
xd2 = x4;
if (y4 > yd2)
yd2 = y4;
}
}
x1 = ROUND (xd1);
y1 = ROUND (yd1);
x2 = ROUND (xd2);
y2 = ROUND (yd2);
}
break;
}
gimp_tool_control_set_snap_offsets (tool->control,
x1 - coords->x,
y1 - coords->y,
x2 - x1,
y2 - y1);
/* Save where to draw the mark of the center */
edit_select->center_x = (x1 + x2) / 2.0;
edit_select->center_y = (y1 + y2) / 2.0;
}
gimp_tool_control_activate (tool->control);
tool->display = display;
tool_manager_push_tool (display->image->gimp, tool);
/* pause the current selection */
gimp_display_shell_selection_control (shell, GIMP_SELECTION_PAUSE);
/* initialize the statusbar display */
gimp_tool_push_status_coords (tool, display,
gimp_tool_control_get_precision (tool->control),
_("Move: "), 0, ", ", 0, NULL);
gimp_draw_tool_start (GIMP_DRAW_TOOL (edit_select), display);
}
static void
gimp_edit_selection_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpEditSelectionTool *edit_select = GIMP_EDIT_SELECTION_TOOL (tool);
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
GimpItem *active_item;
/* resume the current selection */
gimp_display_shell_selection_control (shell, GIMP_SELECTION_RESUME);
gimp_tool_pop_status (tool, display);
/* Stop and free the selection core */
gimp_draw_tool_stop (GIMP_DRAW_TOOL (edit_select));
tool_manager_pop_tool (display->image->gimp);
active_item = gimp_edit_selection_tool_get_active_item (edit_select,
display->image);
gimp_edit_selection_tool_calc_coords (edit_select,
coords->x,
coords->y);
/* GIMP_TRANSLATE_MODE_MASK is performed here at movement end, not 'live' like
* the other translation types.
*/
if (edit_select->edit_mode == GIMP_TRANSLATE_MODE_MASK)
{
/* move the selection -- whether there has been movement or not!
* (to ensure that there's something on the undo stack)
*/
gimp_item_translate (GIMP_ITEM (gimp_image_get_mask (display->image)),
edit_select->cumlx,
edit_select->cumly,
TRUE);
}
/* GIMP_TRANSLATE_MODE_CHANNEL and GIMP_TRANSLATE_MODE_LAYER_MASK
* need to be preformed after thawing the undo.
*/
if (edit_select->edit_mode == GIMP_TRANSLATE_MODE_CHANNEL ||
edit_select->edit_mode == GIMP_TRANSLATE_MODE_LAYER_MASK)
{
/* move the channel -- whether there has been movement or not!
* (to ensure that there's something on the undo stack)
*/
gimp_item_translate (active_item,
edit_select->cumlx,
edit_select->cumly,
TRUE);
}
if (edit_select->edit_mode == GIMP_TRANSLATE_MODE_VECTORS ||
edit_select->edit_mode == GIMP_TRANSLATE_MODE_CHANNEL ||
edit_select->edit_mode == GIMP_TRANSLATE_MODE_LAYER)
{
if ((release_type != GIMP_BUTTON_RELEASE_CANCEL) &&
(edit_select->cumlx != 0 ||
edit_select->cumly != 0))
{
if (gimp_item_get_linked (active_item))
{
/* translate all linked channels as well */
GList *linked;
linked = gimp_image_item_list_get_list (display->image,
active_item,
GIMP_ITEM_TYPE_CHANNELS,
GIMP_ITEM_SET_LINKED);
gimp_image_item_list_translate (display->image,
linked,
edit_select->cumlx,
edit_select->cumly,
TRUE);
g_list_free (linked);
}
}
}
gimp_image_undo_group_end (display->image);
if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
{
/* Operation cancelled - undo the undo-group! */
gimp_image_undo (display->image);
}
gimp_image_flush (display->image);
g_free (edit_select->segs_in);
g_free (edit_select->segs_out);
edit_select->segs_in = NULL;
edit_select->segs_out = NULL;
edit_select->num_segs_in = 0;
edit_select->num_segs_out = 0;
if (edit_select->propagate_release &&
tool_manager_get_active (display->image->gimp))
{
tool_manager_button_release_active (display->image->gimp,
coords, time, state,
display);
}
g_object_unref (edit_select);
}
static void
gimp_edit_selection_tool_update_motion (GimpEditSelectionTool *edit_select,
gdouble new_x,
gdouble new_y,
GimpDisplay *display)
{
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (edit_select);
GimpTool *tool = GIMP_TOOL (edit_select);
GimpItem *active_item;
gint off_x, off_y;
gdouble motion_x, motion_y;
gint x, y;
gdk_flush ();
gimp_draw_tool_pause (draw_tool);
active_item = gimp_edit_selection_tool_get_active_item (edit_select,
display->image);
gimp_item_get_offset (active_item, &off_x, &off_y);
if (edit_select->constrain)
{
gimp_tool_motion_constrain (edit_select->start_x, edit_select->start_y,
&new_x, &new_y,
GIMP_TOOL_CONSTRAIN_45_DEGREES);
}
motion_x = new_x - off_x;
motion_y = new_y - off_y;
/* now do the actual move. */
gimp_edit_selection_tool_calc_coords (edit_select,
motion_x,
motion_y);
x = edit_select->x;
y = edit_select->y;
/* if there has been movement, move the selection */
if (edit_select->origx != x || edit_select->origy != y)
{
gint xoffset;
gint yoffset;
GError *error = NULL;
xoffset = x - edit_select->origx;
yoffset = y - edit_select->origy;
edit_select->cumlx += xoffset;
edit_select->cumly += yoffset;
switch (edit_select->edit_mode)
{
case GIMP_TRANSLATE_MODE_LAYER_MASK:
case GIMP_TRANSLATE_MODE_MASK:
/* we don't do the actual edit selection move here. */
edit_select->origx = x;
edit_select->origy = y;
break;
case GIMP_TRANSLATE_MODE_VECTORS:
case GIMP_TRANSLATE_MODE_CHANNEL:
edit_select->origx = x;
edit_select->origy = y;
/* fallthru */
case GIMP_TRANSLATE_MODE_LAYER:
/* for CHANNEL_TRANSLATE, only translate the linked layers
* and vectors on-the-fly, the channel is translated
* on button_release.
*/
if (edit_select->edit_mode != GIMP_TRANSLATE_MODE_CHANNEL)
gimp_item_translate (active_item, xoffset, yoffset,
edit_select->first_move);
if (gimp_item_get_linked (active_item))
{
/* translate all linked layers & vectors as well */
GList *linked;
linked = gimp_image_item_list_get_list (display->image,
active_item,
GIMP_ITEM_TYPE_LAYERS |
GIMP_ITEM_TYPE_VECTORS,
GIMP_ITEM_SET_LINKED);
gimp_image_item_list_translate (display->image,
linked,
xoffset, yoffset,
edit_select->first_move);
g_list_free (linked);
}
break;
case GIMP_TRANSLATE_MODE_MASK_TO_LAYER:
case GIMP_TRANSLATE_MODE_MASK_COPY_TO_LAYER:
if (! gimp_selection_float (gimp_image_get_mask (display->image),
GIMP_DRAWABLE (active_item),
gimp_get_user_context (display->image->gimp),
edit_select->edit_mode ==
GIMP_TRANSLATE_MODE_MASK_TO_LAYER,
0, 0, &error))
{
/* no region to float, abort safely */
gimp_message_literal (display->image->gimp, G_OBJECT (display),
GIMP_MESSAGE_WARNING,
error->message);
g_clear_error (&error);
gimp_draw_tool_resume (draw_tool);
return;
}
edit_select->origx -= edit_select->x1;
edit_select->origy -= edit_select->y1;
edit_select->x2 -= edit_select->x1;
edit_select->y2 -= edit_select->y1;
edit_select->x1 = 0;
edit_select->y1 = 0;
edit_select->edit_mode = GIMP_TRANSLATE_MODE_FLOATING_SEL;
active_item =
GIMP_ITEM (gimp_image_get_active_drawable (display->image));
/* fall through */
case GIMP_TRANSLATE_MODE_FLOATING_SEL:
gimp_item_translate (active_item, xoffset, yoffset,
edit_select->first_move);
break;
}
edit_select->first_move = FALSE;
}
gimp_projection_flush (gimp_image_get_projection (display->image));
gimp_tool_pop_status (tool, display);
gimp_tool_push_status_coords (tool, display,
gimp_tool_control_get_precision (tool->control),
_("Move: "),
edit_select->cumlx,
", ",
edit_select->cumly,
NULL);
gimp_draw_tool_resume (draw_tool);
}
static void
gimp_edit_selection_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpEditSelectionTool *edit_select = GIMP_EDIT_SELECTION_TOOL (tool);
edit_select->last_x = coords->x;
edit_select->last_y = coords->y;
gimp_edit_selection_tool_update_motion (edit_select,
coords->x, coords->y,
display);
}
static void
gimp_edit_selection_tool_active_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display)
{
GimpEditSelectionTool *edit_select = GIMP_EDIT_SELECTION_TOOL (tool);
edit_select->constrain = state & GDK_CONTROL_MASK ? TRUE : FALSE;
/* If we didn't came here due to a mouse release, immediately update
* the position of the thing we move.
*/
if (state & GDK_BUTTON1_MASK)
{
gimp_edit_selection_tool_update_motion (edit_select,
edit_select->last_x,
edit_select->last_y,
display);
}
}
static void
gimp_edit_selection_tool_draw (GimpDrawTool *draw_tool)
{
GimpEditSelectionTool *edit_select = GIMP_EDIT_SELECTION_TOOL (draw_tool);
GimpDisplay *display = GIMP_TOOL (draw_tool)->display;
GimpItem *active_item;
active_item = gimp_edit_selection_tool_get_active_item (edit_select,
display->image);
switch (edit_select->edit_mode)
{
case GIMP_TRANSLATE_MODE_CHANNEL:
case GIMP_TRANSLATE_MODE_LAYER_MASK:
case GIMP_TRANSLATE_MODE_MASK:
{
gboolean floating_sel = FALSE;
gint off_x = 0;
gint off_y = 0;
if (edit_select->edit_mode == GIMP_TRANSLATE_MODE_MASK)
{
GimpLayer *layer = gimp_image_get_active_layer (display->image);
if (layer)
floating_sel = gimp_layer_is_floating_sel (layer);
}
else
{
gimp_item_get_offset (active_item, &off_x, &off_y);
}
if (! floating_sel && edit_select->segs_in)
{
gimp_draw_tool_draw_boundary (draw_tool,
edit_select->segs_in,
edit_select->num_segs_in,
edit_select->cumlx + off_x,
edit_select->cumly + off_y,
FALSE);
}
if (edit_select->segs_out)
{
gimp_draw_tool_draw_boundary (draw_tool,
edit_select->segs_out,
edit_select->num_segs_out,
edit_select->cumlx + off_x,
edit_select->cumly + off_y,
FALSE);
}
else if (edit_select->edit_mode != GIMP_TRANSLATE_MODE_MASK)
{
gimp_draw_tool_draw_rectangle (draw_tool,
FALSE,
edit_select->cumlx + off_x,
edit_select->cumly + off_y,
gimp_item_get_width (active_item),
gimp_item_get_height (active_item),
FALSE);
}
}
break;
case GIMP_TRANSLATE_MODE_MASK_TO_LAYER:
case GIMP_TRANSLATE_MODE_MASK_COPY_TO_LAYER:
gimp_draw_tool_draw_rectangle (draw_tool,
FALSE,
edit_select->x1,
edit_select->y1,
edit_select->x2 - edit_select->x1,
edit_select->y2 - edit_select->y1,
TRUE);
break;
case GIMP_TRANSLATE_MODE_LAYER:
{
GimpItem *active_item;
gint x1, y1, x2, y2;
active_item = GIMP_ITEM (gimp_image_get_active_layer (display->image));
gimp_item_get_offset (active_item, &x1, &y1);
x2 = x1 + gimp_item_get_width (active_item);
y2 = y1 + gimp_item_get_height (active_item);
if (gimp_item_get_linked (active_item))
{
/* Expand the rectangle to include all linked layers as well */
GList *linked;
GList *list;
linked = gimp_image_item_list_get_list (display->image,
active_item,
GIMP_ITEM_TYPE_LAYERS,
GIMP_ITEM_SET_LINKED);
for (list = linked; list; list = g_list_next (list))
{
GimpItem *item = list->data;
gint x3, y3;
gint x4, y4;
gimp_item_get_offset (item, &x3, &y3);
x4 = x3 + gimp_item_get_width (item);
y4 = y3 + gimp_item_get_height (item);
if (x3 < x1)
x1 = x3;
if (y3 < y1)
y1 = y3;
if (x4 > x2)
x2 = x4;
if (y4 > y2)
y2 = y4;
}
g_list_free (linked);
}
gimp_draw_tool_draw_rectangle (draw_tool,
FALSE,
x1, y1,
x2 - x1, y2 - y1,
FALSE);
}
break;
case GIMP_TRANSLATE_MODE_VECTORS:
{
GimpItem *active_item;
gdouble x1, y1, x2, y2;
active_item = GIMP_ITEM (gimp_image_get_active_vectors (display->image));
gimp_vectors_bounds (GIMP_VECTORS (active_item), &x1, &y1, &x2, &y2);
if (gimp_item_get_linked (active_item))
{
/* Expand the rectangle to include all linked vectors as well */
GList *linked;
GList *list;
linked = gimp_image_item_list_get_list (display->image,
active_item,
GIMP_ITEM_TYPE_VECTORS,
GIMP_ITEM_SET_LINKED);
for (list = linked; list; list = g_list_next (list))
{
GimpItem *item = list->data;
gdouble x3, y3;
gdouble x4, y4;
gimp_vectors_bounds (GIMP_VECTORS (item), &x3, &y3, &x4, &y4);
if (x3 < x1)
x1 = x3;
if (y3 < y1)
y1 = y3;
if (x4 > x2)
x2 = x4;
if (y4 > y2)
y2 = y4;
}
g_list_free (linked);
}
gimp_draw_tool_draw_rectangle (draw_tool,
FALSE,
ROUND (x1), ROUND (y1),
ROUND (x2 - x1), ROUND (y2 - y1),
FALSE);
}
break;
case GIMP_TRANSLATE_MODE_FLOATING_SEL:
gimp_draw_tool_draw_boundary (draw_tool,
edit_select->segs_in,
edit_select->num_segs_in,
edit_select->cumlx,
edit_select->cumly,
FALSE);
break;
}
/* Mark the center because we snap to it */
gimp_draw_tool_draw_cross_by_anchor (draw_tool,
edit_select->center_x + edit_select->cumlx,
edit_select->center_y + edit_select->cumly,
CENTER_CROSS_SIZE,
CENTER_CROSS_SIZE,
GTK_ANCHOR_CENTER,
FALSE);
GIMP_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool);
}
static GimpItem *
gimp_edit_selection_tool_get_active_item (const GimpEditSelectionTool *edit_select,
const GimpImage *image)
{
GimpItem *active_item;
if (edit_select->edit_mode == GIMP_TRANSLATE_MODE_VECTORS)
active_item = GIMP_ITEM (gimp_image_get_active_vectors (image));
else
active_item = GIMP_ITEM (gimp_image_get_active_drawable (image));
return active_item;
}
static gint
process_event_queue_keys (GdkEventKey *kevent,
... /* GdkKeyType, GdkModifierType, value ... 0 */)
{
#define FILTER_MAX_KEYS 50
va_list argp;
GdkEvent *event;
GList *event_list = NULL;
GList *list;
guint keys[FILTER_MAX_KEYS];
GdkModifierType modifiers[FILTER_MAX_KEYS];
gint values[FILTER_MAX_KEYS];
gint i = 0;
gint n_keys = 0;
gint value = 0;
gboolean done = FALSE;
GtkWidget *orig_widget;
va_start (argp, kevent);
while (n_keys < FILTER_MAX_KEYS &&
(keys[n_keys] = va_arg (argp, guint)) != 0)
{
modifiers[n_keys] = va_arg (argp, GdkModifierType);
values[n_keys] = va_arg (argp, gint);
n_keys++;
}
va_end (argp);
for (i = 0; i < n_keys; i++)
if (kevent->keyval == keys[i] &&
(kevent->state & modifiers[i]) == modifiers[i])
value += values[i];
orig_widget = gtk_get_event_widget ((GdkEvent *) kevent);
while (gdk_events_pending () > 0 && ! done)
{
gboolean discard_event = FALSE;
event = gdk_event_get ();
if (! event || orig_widget != gtk_get_event_widget (event))
{
done = TRUE;
}
else
{
if (event->any.type == GDK_KEY_PRESS)
{
for (i = 0; i < n_keys; i++)
if (event->key.keyval == keys[i] &&
(event->key.state & modifiers[i]) == modifiers[i])
{
discard_event = TRUE;
value += values[i];
}
if (! discard_event)
done = TRUE;
}
/* should there be more types here? */
else if (event->any.type != GDK_KEY_RELEASE &&
event->any.type != GDK_MOTION_NOTIFY &&
event->any.type != GDK_EXPOSE)
done = FALSE;
}
if (! event)
; /* Do nothing */
else if (! discard_event)
event_list = g_list_prepend (event_list, event);
else
gdk_event_free (event);
}
event_list = g_list_reverse (event_list);
/* unget the unused events and free the list */
for (list = event_list; list; list = g_list_next (list))
{
gdk_event_put ((GdkEvent *) list->data);
gdk_event_free ((GdkEvent *) list->data);
}
g_list_free (event_list);
return value;
#undef FILTER_MAX_KEYS
}
gboolean
gimp_edit_selection_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display)
{
GimpTransformType translate_type;
if (kevent->state & GDK_MOD1_MASK)
translate_type = GIMP_TRANSFORM_TYPE_SELECTION;
else if (kevent->state & GDK_CONTROL_MASK)
translate_type = GIMP_TRANSFORM_TYPE_PATH;
else
translate_type = GIMP_TRANSFORM_TYPE_LAYER;
return gimp_edit_selection_tool_translate (tool, kevent, translate_type,
display);
}
gboolean
gimp_edit_selection_tool_translate (GimpTool *tool,
GdkEventKey *kevent,
GimpTransformType translate_type,
GimpDisplay *display)
{
gint inc_x = 0;
gint inc_y = 0;
GimpUndo *undo;
gboolean push_undo = TRUE;
GimpItem *item = NULL;
GimpTranslateMode edit_mode = GIMP_TRANSLATE_MODE_MASK;
GimpUndoType undo_type = GIMP_UNDO_GROUP_MASK;
const gchar *undo_desc = NULL;
gint velocity;
/* bail out early if it is not an arrow key event */
if (kevent->keyval != GDK_Left &&
kevent->keyval != GDK_Right &&
kevent->keyval != GDK_Up &&
kevent->keyval != GDK_Down)
return FALSE;
/* adapt arrow velocity to the zoom factor when holding <shift> */
velocity = (ARROW_VELOCITY /
gimp_zoom_model_get_factor (GIMP_DISPLAY_SHELL (display->shell)->zoom));
velocity = MAX (1.0, velocity);
/* check the event queue for key events with the same modifier mask
* as the current event, allowing only GDK_SHIFT_MASK to vary between
* them.
*/
inc_x = process_event_queue_keys (kevent,
GDK_Left,
kevent->state | GDK_SHIFT_MASK,
-1 * velocity,
GDK_Left,
kevent->state & ~GDK_SHIFT_MASK,
-1,
GDK_Right,
kevent->state | GDK_SHIFT_MASK,
1 * velocity,
GDK_Right,
kevent->state & ~GDK_SHIFT_MASK,
1,
0);
inc_y = process_event_queue_keys (kevent,
GDK_Up,
kevent->state | GDK_SHIFT_MASK,
-1 * velocity,
GDK_Up,
kevent->state & ~GDK_SHIFT_MASK,
-1,
GDK_Down,
kevent->state | GDK_SHIFT_MASK,
1 * velocity,
GDK_Down,
kevent->state & ~GDK_SHIFT_MASK,
1,
0);
if (inc_x != 0 || inc_y != 0)
{
switch (translate_type)
{
case GIMP_TRANSFORM_TYPE_SELECTION:
item = GIMP_ITEM (gimp_image_get_mask (display->image));
edit_mode = GIMP_TRANSLATE_MODE_MASK;
undo_type = GIMP_UNDO_GROUP_MASK;
break;
case GIMP_TRANSFORM_TYPE_PATH:
item = GIMP_ITEM (gimp_image_get_active_vectors (display->image));
edit_mode = GIMP_TRANSLATE_MODE_VECTORS;
undo_type = GIMP_UNDO_GROUP_ITEM_DISPLACE;
break;
case GIMP_TRANSFORM_TYPE_LAYER:
item = GIMP_ITEM (gimp_image_get_active_drawable (display->image));
if (item)
{
if (GIMP_IS_LAYER_MASK (item))
{
edit_mode = GIMP_TRANSLATE_MODE_LAYER_MASK;
}
else if (GIMP_IS_CHANNEL (item))
{
edit_mode = GIMP_TRANSLATE_MODE_CHANNEL;
}
else if (gimp_layer_is_floating_sel (GIMP_LAYER (item)))
{
edit_mode = GIMP_TRANSLATE_MODE_FLOATING_SEL;
}
else
{
edit_mode = GIMP_TRANSLATE_MODE_LAYER;
}
undo_type = GIMP_UNDO_GROUP_ITEM_DISPLACE;
}
break;
}
}
if (! item)
return TRUE;
switch (edit_mode)
{
case GIMP_TRANSLATE_MODE_FLOATING_SEL:
undo_desc = _("Move Floating Selection");
break;
default:
undo_desc = GIMP_ITEM_GET_CLASS (item)->translate_desc;
break;
}
/* compress undo */
undo = gimp_image_undo_can_compress (display->image, GIMP_TYPE_UNDO_STACK,
undo_type);
if (undo &&
g_object_get_data (G_OBJECT (undo),
"edit-selection-tool") == (gpointer) tool &&
g_object_get_data (G_OBJECT (undo),
"edit-selection-item") == (gpointer) item &&
g_object_get_data (G_OBJECT (undo),
"edit-selection-type") == GINT_TO_POINTER (edit_mode))
{
push_undo = FALSE;
}
if (push_undo)
{
if (gimp_image_undo_group_start (display->image, undo_type, undo_desc))
{
undo = gimp_image_undo_can_compress (display->image,
GIMP_TYPE_UNDO_STACK,
undo_type);
if (undo)
{
g_object_set_data (G_OBJECT (undo), "edit-selection-tool",
tool);
g_object_set_data (G_OBJECT (undo), "edit-selection-item",
item);
g_object_set_data (G_OBJECT (undo), "edit-selection-type",
GINT_TO_POINTER (edit_mode));
}
}
}
switch (edit_mode)
{
case GIMP_TRANSLATE_MODE_LAYER_MASK:
case GIMP_TRANSLATE_MODE_MASK:
gimp_item_translate (item, inc_x, inc_y, push_undo);
break;
case GIMP_TRANSLATE_MODE_MASK_TO_LAYER:
case GIMP_TRANSLATE_MODE_MASK_COPY_TO_LAYER:
/* this won't happen */
break;
case GIMP_TRANSLATE_MODE_VECTORS:
case GIMP_TRANSLATE_MODE_CHANNEL:
case GIMP_TRANSLATE_MODE_LAYER:
gimp_item_translate (item, inc_x, inc_y, push_undo);
/* translate all linked items as well */
if (gimp_item_get_linked (item))
gimp_item_linked_translate (item, inc_x, inc_y, push_undo);
break;
case GIMP_TRANSLATE_MODE_FLOATING_SEL:
gimp_item_translate (item, inc_x, inc_y, push_undo);
break;
}
if (push_undo)
gimp_image_undo_group_end (display->image);
else
gimp_undo_refresh_preview (undo,
gimp_get_user_context (display->image->gimp));
gimp_image_flush (display->image);
return TRUE;
}
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