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gimp/app/tools/gimpeditselectiontool.c

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/* The GIMP -- an 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 <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpbase/gimpbase.h"
#include "tools-types.h"
#include "base/boundary.h"
#include "core/gimpimage.h"
#include "core/gimpimage-guides.h"
#include "core/gimpimage-mask.h"
#include "core/gimpimage-undo.h"
#include "core/gimplayer.h"
#include "core/gimplayer-floating-sel.h"
#include "core/gimplist.h"
#include "core/gimpundostack.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 "gimp-intl.h"
#define EDIT_SELECT_SCROLL_LOCK FALSE
#define ARROW_VELOCITY 25
#define GIMP_TYPE_EDIT_SELECTION_TOOL (gimp_edit_selection_tool_get_type ())
#define GIMP_EDIT_SELECTION_TOOL(obj) (GTK_CHECK_CAST ((obj), GIMP_TYPE_EDIT_SELECTION_TOOL, GimpEditSelectionTool))
#define GIMP_EDIT_SELECTION_TOOL_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GIMP_TYPE_EDIT_SELECTION_TOOL, GimpEditSelectionToolClass))
#define GIMP_IS_EDIT_SELECTION_TOOL(obj) (GTK_CHECK_TYPE ((obj), GIMP_TYPE_EDIT_SELECTION_TOOL))
#define GIMP_IS_EDIT_SELECTION_TOOL_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_EDIT_SELECTION_TOOL))
typedef struct _GimpEditSelectionTool GimpEditSelectionTool;
typedef struct _GimpEditSelectionToolClass GimpEditSelectionToolClass;
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;
EditType edit_type; /* translate the mask or layer? */
gboolean first_move; /* we undo_freeze after the first */
};
struct _GimpEditSelectionToolClass
{
GimpDrawToolClass parent_class;
};
static GType gimp_edit_selection_tool_get_type (void) G_GNUC_CONST;
static void gimp_edit_selection_tool_class_init (GimpEditSelectionToolClass *klass);
static void gimp_edit_selection_tool_init (GimpEditSelectionTool *edit_selection_tool);
static void gimp_edit_selection_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_edit_selection_tool_motion (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp);
void gimp_edit_selection_tool_arrow_key (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *gdisp);
static void gimp_edit_selection_tool_draw (GimpDrawTool *tool);
static GimpDrawToolClass *parent_class = NULL;
static GType
gimp_edit_selection_tool_get_type (void)
{
static GType tool_type = 0;
if (! tool_type)
{
static const GTypeInfo tool_info =
{
sizeof (GimpEditSelectionToolClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_edit_selection_tool_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpEditSelectionTool),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_edit_selection_tool_init,
};
tool_type = g_type_register_static (GIMP_TYPE_DRAW_TOOL,
"GimpEditSelectionTool",
&tool_info, 0);
}
return tool_type;
}
static void
gimp_edit_selection_tool_class_init (GimpEditSelectionToolClass *klass)
{
GimpToolClass *tool_class;
GimpDrawToolClass *draw_class;
tool_class = GIMP_TOOL_CLASS (klass);
draw_class = GIMP_DRAW_TOOL_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
tool_class->button_release = gimp_edit_selection_tool_button_release;
tool_class->motion = gimp_edit_selection_tool_motion;
draw_class->draw = gimp_edit_selection_tool_draw;
}
static void
gimp_edit_selection_tool_init (GimpEditSelectionTool *edit_selection_tool)
{
GimpTool *tool;
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);
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;
}
static void
gimp_edit_selection_tool_calc_coords (GimpEditSelectionTool *edit_select,
GimpDisplay *gdisp,
gdouble x,
gdouble y)
{
GimpDisplayShell *shell;
gdouble x1, y1;
gdouble dx, dy;
shell = GIMP_DISPLAY_SHELL (gdisp->shell);
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
init_edit_selection (GimpTool *tool,
GimpDisplay *gdisp,
GimpCoords *coords,
EditType edit_type)
{
GimpEditSelectionTool *edit_select;
GimpDisplayShell *shell;
GimpDrawable *active_drawable;
gint off_x, off_y;
const gchar *undo_desc;
edit_select = g_object_new (GIMP_TYPE_EDIT_SELECTION_TOOL, NULL);
shell = GIMP_DISPLAY_SHELL (gdisp->shell);
/* Make a check to see if it should be a floating selection translation */
if (edit_type == EDIT_MASK_TO_LAYER_TRANSLATE &&
gimp_image_floating_sel (gdisp->gimage))
{
edit_type = EDIT_FLOATING_SEL_TRANSLATE;
}
if (edit_type == EDIT_LAYER_TRANSLATE)
{
GimpLayer *layer;
layer = gimp_image_get_active_layer (gdisp->gimage);
if (gimp_layer_is_floating_sel (layer))
edit_type = EDIT_FLOATING_SEL_TRANSLATE;
}
if (edit_type == EDIT_MASK_TRANSLATE)
undo_desc = _("Move Selection");
else if (edit_type == EDIT_LAYER_TRANSLATE)
undo_desc = _("Move Layer");
else
undo_desc = _("Move Floating Layer");
gimp_image_undo_group_start (gdisp->gimage,
edit_type == EDIT_MASK_TRANSLATE ?
GIMP_UNDO_GROUP_MASK :
GIMP_UNDO_GROUP_ITEM_DISPLACE,
undo_desc);
active_drawable = gimp_image_active_drawable (gdisp->gimage);
gimp_item_offsets (GIMP_ITEM (active_drawable), &off_x, &off_y);
edit_select->edit_type = edit_type;
edit_select->x = edit_select->origx = coords->x - off_x;
edit_select->y = edit_select->origy = coords->y - off_y;
gimp_image_mask_boundary (gdisp->gimage,
&edit_select->segs_in,
&edit_select->segs_out,
&edit_select->num_segs_in,
&edit_select->num_segs_out);
edit_select->segs_in = g_memdup (edit_select->segs_in,
edit_select->num_segs_in *
sizeof (BoundSeg));
edit_select->segs_out = g_memdup (edit_select->segs_out,
edit_select->num_segs_out *
sizeof (BoundSeg));
/* find the bounding box of the selection mask -
* this is used for the case of a EDIT_MASK_TO_LAYER_TRANSLATE,
* where the translation will result in floating the selection
* mask and translating the resulting layer
*/
gimp_drawable_mask_bounds (active_drawable,
&edit_select->x1, &edit_select->y1,
&edit_select->x2, &edit_select->y2);
gimp_edit_selection_tool_calc_coords (edit_select, gdisp,
edit_select->origx,
edit_select->origy);
{
gint x1, y1, x2, y2;
switch (edit_select->edit_type)
{
case EDIT_MASK_TRANSLATE:
gimp_image_mask_bounds (gdisp->gimage, &x1, &y1, &x2, &y2);
break;
case EDIT_MASK_TO_LAYER_TRANSLATE:
case EDIT_MASK_COPY_TO_LAYER_TRANSLATE:
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 EDIT_LAYER_TRANSLATE:
case EDIT_FLOATING_SEL_TRANSLATE:
x1 = off_x;
y1 = off_y;
x2 = x1 + gimp_item_width (GIMP_ITEM (active_drawable));
y2 = y1 + gimp_item_height (GIMP_ITEM (active_drawable));
if (gimp_item_get_linked (GIMP_ITEM (active_drawable)))
{
GList *list;
/* Expand the rectangle to include all linked layers as well */
for (list = GIMP_LIST (gdisp->gimage->layers)->list;
list;
list = g_list_next (list))
{
GimpItem *item = list->data;
if ((item != (GimpItem *) active_drawable) &&
gimp_item_get_linked (item))
{
gint x3, y3, x4, y4;
gimp_item_offsets (item, &x3, &y3);
x4 = x3 + gimp_item_width (item);
y4 = y3 + gimp_item_height (item);
if (x3 < x1)
x1 = x3;
if (y3 < y1)
y1 = y3;
if (x4 > x2)
x2 = x4;
if (y4 > y2)
y2 = y4;
}
}
}
break;
}
gimp_tool_control_set_snap_offsets (GIMP_TOOL (edit_select)->control,
x1 - coords->x,
y1 - coords->y,
x2 - x1,
y2 - y1);
}
gimp_tool_control_activate (GIMP_TOOL (edit_select)->control);
GIMP_TOOL (edit_select)->gdisp = gdisp;
g_object_ref (edit_select);
tool_manager_push_tool (gdisp->gimage->gimp,
GIMP_TOOL (edit_select));
/* pause the current selection */
gimp_display_shell_selection_visibility (shell, GIMP_SELECTION_PAUSE);
/* initialize the statusbar display */
gimp_tool_push_status_coords (GIMP_TOOL (edit_select),
_("Move: "), 0, ", ", 0);
gimp_draw_tool_start (GIMP_DRAW_TOOL (edit_select), gdisp);
}
static void
gimp_edit_selection_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpEditSelectionTool *edit_select;
GimpDisplayShell *shell;
GimpLayer *layer;
edit_select = GIMP_EDIT_SELECTION_TOOL (tool);
shell = GIMP_DISPLAY_SHELL (gdisp->shell);
/* resume the current selection */
gimp_display_shell_selection_visibility (shell, GIMP_SELECTION_RESUME);
gimp_tool_pop_status (tool);
/* Stop and free the selection core */
gimp_draw_tool_stop (GIMP_DRAW_TOOL (edit_select));
tool_manager_pop_tool (gdisp->gimage->gimp);
/* EDIT_MASK_TRANSLATE is performed here at movement end, not 'live' like
* the other translation types.
*/
if (edit_select->edit_type == EDIT_MASK_TRANSLATE)
{
gimp_edit_selection_tool_calc_coords (edit_select,
gdisp,
coords->x,
coords->y);
/* move the selection -- whether there has been net movement or not!
* (to ensure that there's something on the undo stack)
*/
gimp_image_mask_translate (gdisp->gimage,
edit_select->cumlx,
edit_select->cumly,
TRUE);
if (edit_select->first_move)
{
gimp_image_undo_freeze (gdisp->gimage);
edit_select->first_move = FALSE;
}
}
/* thaw the undo again */
gimp_image_undo_thaw (gdisp->gimage);
if (edit_select->cumlx != 0 || edit_select->cumly != 0)
{
layer = gimp_image_get_active_layer (gdisp->gimage);
if (! (state & GDK_BUTTON3_MASK) &&
edit_select->edit_type == EDIT_LAYER_TRANSLATE &&
gimp_item_get_linked (GIMP_ITEM (layer)))
{
GList *list;
GimpItem *item;
/* translate all linked channels and vectors as well */
for (list = GIMP_LIST (gdisp->gimage->channels)->list;
list;
list = g_list_next (list))
{
item = (GimpItem *) list->data;
if (gimp_item_get_linked (item))
gimp_item_translate (item,
edit_select->cumlx,
edit_select->cumly,
TRUE);
}
for (list = GIMP_LIST (gdisp->gimage->vectors)->list;
list;
list = g_list_next (list))
{
item = (GimpItem *) list->data;
if (gimp_item_get_linked (item))
gimp_item_translate (item,
edit_select->cumlx,
edit_select->cumly,
TRUE);
}
}
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (layer));
}
gimp_image_undo_group_end (gdisp->gimage);
if (state & GDK_BUTTON3_MASK) /* OPERATION CANCELLED */
{
/* Operation cancelled - undo the undo-group! */
gimp_image_undo (gdisp->gimage);
}
gimp_image_flush (gdisp->gimage);
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;
g_object_unref (edit_select);
}
static void
gimp_edit_selection_tool_motion (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpEditSelectionTool *edit_select;
GimpDisplayShell *shell;
gint off_x, off_y;
gdouble motion_x, motion_y;
edit_select = GIMP_EDIT_SELECTION_TOOL (tool);
shell = GIMP_DISPLAY_SHELL (gdisp->shell);
gdk_flush ();
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
gimp_item_offsets (GIMP_ITEM (gimp_image_active_drawable (gdisp->gimage)),
&off_x, &off_y);
motion_x = coords->x - off_x;
motion_y = coords->y - off_y;
/* now do the actual move. */
gimp_edit_selection_tool_calc_coords (edit_select,
gdisp,
motion_x,
motion_y);
/******************************************* adam's live move *******/
/********************************************************************/
{
gint x, 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, yoffset;
xoffset = x - edit_select->origx;
yoffset = y - edit_select->origy;
edit_select->cumlx += xoffset;
edit_select->cumly += yoffset;
switch (edit_select->edit_type)
{
case EDIT_MASK_TRANSLATE:
/* we don't do the actual edit selection move here. */
edit_select->origx = x;
edit_select->origy = y;
break;
case EDIT_LAYER_TRANSLATE:
{
GimpLayer *floating_layer;
GimpItem *active_item;
floating_layer = gimp_image_floating_sel (gdisp->gimage);
active_item = GIMP_ITEM (gdisp->gimage->active_layer);
if (floating_layer)
floating_sel_relax (floating_layer, TRUE);
gimp_item_translate (active_item, xoffset, yoffset, TRUE);
if (gimp_item_get_linked (active_item))
{
GList *list;
/* translate all linked items as well */
for (list = GIMP_LIST (gdisp->gimage->layers)->list;
list;
list = g_list_next (list))
{
GimpItem *item = list->data;
if (item != active_item && gimp_item_get_linked (item))
gimp_item_translate (item, xoffset, yoffset, TRUE);
}
}
if (floating_layer)
floating_sel_rigor (floating_layer, TRUE);
if (edit_select->first_move)
{
gimp_image_undo_freeze (gdisp->gimage);
edit_select->first_move = FALSE;
}
}
break;
case EDIT_MASK_TO_LAYER_TRANSLATE:
case EDIT_MASK_COPY_TO_LAYER_TRANSLATE:
if (! gimp_image_mask_float (gdisp->gimage,
gimp_image_active_drawable (gdisp->gimage),
edit_select->edit_type ==
EDIT_MASK_TO_LAYER_TRANSLATE,
0, 0))
{
/* no region to float, abort safely */
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
return;
}
/* this is always the first move, since we switch to
* EDIT_FLOATING_SEL_TRANSLATE when finished here
*/
gimp_image_undo_freeze (gdisp->gimage);
edit_select->first_move = FALSE;
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_type = EDIT_FLOATING_SEL_TRANSLATE;
/* fall through */
case EDIT_FLOATING_SEL_TRANSLATE:
{
GimpLayer *layer = gimp_image_get_active_layer (gdisp->gimage);
floating_sel_relax (layer, TRUE);
gimp_item_translate (GIMP_ITEM (layer), xoffset, yoffset, TRUE);
floating_sel_rigor (layer, TRUE);
if (edit_select->first_move)
{
gimp_image_undo_freeze (gdisp->gimage);
edit_select->first_move = FALSE;
}
}
break;
default:
g_warning ("esm / BAD FALLTHROUGH");
}
}
gimp_display_flush (gdisp);
}
/********************************************************************/
/********************************************************************/
gimp_tool_pop_status (tool);
gimp_tool_push_status_coords (tool,
_("Move: "),
edit_select->cumlx,
", ",
edit_select->cumly);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
static void
gimp_edit_selection_tool_draw (GimpDrawTool *draw_tool)
{
GimpEditSelectionTool *edit_select;
GimpDisplay *gdisp;
edit_select = GIMP_EDIT_SELECTION_TOOL (draw_tool);
gdisp = GIMP_TOOL (draw_tool)->gdisp;
switch (edit_select->edit_type)
{
case EDIT_MASK_TRANSLATE:
{
GimpLayer *layer = gimp_image_get_active_layer (gdisp->gimage);
gboolean floating_sel = gimp_layer_is_floating_sel (layer);
if (! floating_sel)
gimp_draw_tool_draw_boundary (draw_tool,
edit_select->segs_in,
edit_select->num_segs_in,
edit_select->cumlx,
edit_select->cumly);
gimp_draw_tool_draw_boundary (draw_tool,
edit_select->segs_out,
edit_select->num_segs_out,
edit_select->cumlx,
edit_select->cumly);
}
break;
case EDIT_MASK_TO_LAYER_TRANSLATE:
case EDIT_MASK_COPY_TO_LAYER_TRANSLATE:
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 EDIT_LAYER_TRANSLATE:
{
GimpItem *active_item;
gint x1, y1, x2, y2;
active_item = GIMP_ITEM (gdisp->gimage->active_layer);
gimp_item_offsets (active_item, &x1, &y1);
x2 = x1 + gimp_item_width (active_item);
y2 = y1 + gimp_item_height (active_item);
if (gimp_item_get_linked (active_item))
{
GList *list;
/* Expand the rectangle to include all linked layers as well */
for (list = GIMP_LIST (gdisp->gimage->layers)->list;
list;
list = g_list_next (list))
{
GimpItem *item = list->data;
if (item != active_item && gimp_item_get_linked (item))
{
gint x3, y3, x4, y4;
gimp_item_offsets (item, &x3, &y3);
x4 = x3 + gimp_item_width (item);
y4 = y3 + gimp_item_height (item);
if (x3 < x1)
x1 = x3;
if (y3 < y1)
y1 = y3;
if (x4 > x2)
x2 = x4;
if (y4 > y2)
y2 = y4;
}
}
}
gimp_draw_tool_draw_rectangle (draw_tool,
FALSE,
x1, y1,
x2 - x1, y2 - y1,
FALSE);
}
break;
case EDIT_FLOATING_SEL_TRANSLATE:
gimp_draw_tool_draw_boundary (draw_tool,
edit_select->segs_in,
edit_select->num_segs_in,
edit_select->cumlx,
edit_select->cumly);
break;
}
}
/* could move this function to a more central location
* so it can be used by other tools?
*/
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
}
void
gimp_edit_selection_tool_arrow_key (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *gdisp)
{
gint mask_inc_x = 0;
gint mask_inc_y = 0;
gint inc_x = 0;
gint inc_y = 0;
GimpUndo *undo;
gboolean push_undo = TRUE;
gboolean translate_mask = FALSE;
gboolean translate_layer = FALSE;
GimpLayer *layer = NULL;
EditType edit_type = EDIT_MASK_TRANSLATE;
GimpUndoType undo_type;
/* check for mask translation first because the translate_layer
* modifiers match the translate_mask ones...
*/
mask_inc_x =
process_event_queue_keys (kevent,
GDK_Left, (GDK_MOD1_MASK | GDK_SHIFT_MASK),
-1 * ARROW_VELOCITY,
GDK_Left, GDK_MOD1_MASK,
-1,
GDK_Right, (GDK_MOD1_MASK | GDK_SHIFT_MASK),
1 * ARROW_VELOCITY,
GDK_Right, GDK_MOD1_MASK,
1,
0);
mask_inc_y =
process_event_queue_keys (kevent,
GDK_Up, (GDK_MOD1_MASK | GDK_SHIFT_MASK),
-1 * ARROW_VELOCITY,
GDK_Up, GDK_MOD1_MASK,
-1,
GDK_Down, (GDK_MOD1_MASK | GDK_SHIFT_MASK),
1 * ARROW_VELOCITY,
GDK_Down, GDK_MOD1_MASK,
1,
0);
if (mask_inc_x != 0 || mask_inc_y != 0)
{
translate_mask = TRUE;
}
else
{
inc_x = process_event_queue_keys (kevent,
GDK_Left, GDK_SHIFT_MASK,
-1 * ARROW_VELOCITY,
GDK_Left, 0,
-1,
GDK_Right, GDK_SHIFT_MASK,
1 * ARROW_VELOCITY,
GDK_Right, 0,
1,
0);
inc_y = process_event_queue_keys (kevent,
GDK_Up, GDK_SHIFT_MASK,
-1 * ARROW_VELOCITY,
GDK_Up, 0,
-1,
GDK_Down, GDK_SHIFT_MASK,
1 * ARROW_VELOCITY,
GDK_Down, 0,
1,
0);
if (inc_x != 0 || inc_y != 0)
{
translate_layer = TRUE;
layer = gimp_image_get_active_layer (gdisp->gimage);
if (gimp_layer_is_floating_sel (layer))
edit_type = EDIT_FLOATING_SEL_TRANSLATE;
else
edit_type = EDIT_LAYER_TRANSLATE;
}
else
{
return;
}
}
if (translate_mask)
undo_type = GIMP_UNDO_GROUP_MASK;
else
undo_type = GIMP_UNDO_GROUP_ITEM_DISPLACE;
undo = gimp_undo_stack_peek (gdisp->gimage->undo_stack);
if (GIMP_IS_UNDO_STACK (undo) && undo->undo_type == undo_type)
{
if (g_object_get_data (G_OBJECT (undo), "edit-selection-tool") ==
(gpointer) tool &&
g_object_get_data (G_OBJECT (undo), "edit-selection-mask") ==
GINT_TO_POINTER (translate_mask) &&
g_object_get_data (G_OBJECT (undo), "edit-selection-layer") ==
(gpointer) layer &&
g_object_get_data (G_OBJECT (undo), "edit-selection-type") ==
GINT_TO_POINTER (edit_type))
{
push_undo = FALSE;
}
}
if (push_undo)
{
const gchar *undo_desc;
if (translate_mask)
undo_desc = _("Move Selection");
else if (edit_type == EDIT_FLOATING_SEL_TRANSLATE)
undo_desc = _("Move Floating Layer");
else
undo_desc = _("Move Layer");
if (gimp_image_undo_group_start (gdisp->gimage, undo_type, undo_desc))
{
undo = gimp_undo_stack_peek (gdisp->gimage->undo_stack);
if (GIMP_IS_UNDO_STACK (undo) && undo->undo_type == undo_type)
{
g_object_set_data (G_OBJECT (undo), "edit-selection-tool",
tool);
g_object_set_data (G_OBJECT (undo), "edit-selection-mask",
GINT_TO_POINTER (translate_mask));
g_object_set_data (G_OBJECT (undo), "edit-selection-layer",
layer);
g_object_set_data (G_OBJECT (undo), "edit-selection-type",
GINT_TO_POINTER (edit_type));
}
}
}
if (translate_mask)
{
gimp_image_mask_translate (gdisp->gimage, mask_inc_x, mask_inc_y,
push_undo);
}
else if (translate_layer)
{
switch (edit_type)
{
case EDIT_MASK_TRANSLATE:
case EDIT_MASK_TO_LAYER_TRANSLATE:
case EDIT_MASK_COPY_TO_LAYER_TRANSLATE:
/* this won't happen */
break;
case EDIT_LAYER_TRANSLATE:
{
GimpLayer *floating_layer;
GimpItem *active_item;
floating_layer = gimp_image_floating_sel (gdisp->gimage);
active_item = GIMP_ITEM (gdisp->gimage->active_layer);
if (floating_layer)
floating_sel_relax (floating_layer, push_undo);
gimp_item_translate (active_item, inc_x, inc_y, push_undo);
if (gimp_item_get_linked (active_item))
{
GList *list;
/* translate all linked items as well */
for (list = GIMP_LIST (gdisp->gimage->layers)->list;
list;
list = g_list_next (list))
{
GimpItem *item = list->data;
if (item != active_item && gimp_item_get_linked (item))
gimp_item_translate (item, inc_x, inc_y, push_undo);
}
}
if (floating_layer)
floating_sel_rigor (floating_layer, push_undo);
}
break;
case EDIT_FLOATING_SEL_TRANSLATE:
floating_sel_relax (layer, push_undo);
gimp_item_translate (GIMP_ITEM (layer), inc_x, inc_y, push_undo);
floating_sel_rigor (layer, push_undo);
break;
}
}
if (push_undo)
gimp_image_undo_group_end (gdisp->gimage);
gimp_image_flush (gdisp->gimage);
}
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