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gimp/app/tools/gimpeditselectiontool.c
Sven Neumann 558271ff3b when moving layers/masks freeze the undo after the first move to avoid 
* app/edit_selection.c: when moving layers/masks freeze the undo
        after the first move to avoid that each and every small movements
        puts an undo on the stack. Significantly speeds up layer moves
        and especially the undo of a layer move.

        * app/gdisplay.h: correct rounding errors

        * app/gimpimage.c: correctly display floating selections in the
        composite_preview instead of ignoring them

        * app/channels_dialog.c
        * app/layers_dialog.c
        * app/lc_dialog.c: s/gtk_widget_draw/gtk_widget_queue_draw/

--Sven
1999-11-05 14:39:04 +00:00

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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 <stdlib.h>
#include <stdarg.h>
#include "gdk/gdkkeysyms.h"
#include "appenv.h"
#include "draw_core.h"
#include "drawable.h"
#include "tools.h"
#include "edit_selection.h"
#include "floating_sel.h"
#include "gimage_mask.h"
#include "gdisplay.h"
#include "undo.h"
#include "gimprc.h"
#include "paths_dialogP.h"
#include "libgimp/gimpintl.h"
#define EDIT_SELECT_SCROLL_LOCK FALSE
#define ARROW_VELOCITY 25
#define STATUSBAR_SIZE 128
typedef struct _EditSelection EditSelection;
struct _EditSelection
{
int origx, origy; /* last x and y coords */
int cumlx, cumly; /* cumulative changes to x and yed */
int x, y; /* current x and y coords */
int x1, y1; /* bounding box of selection mask */
int x2, y2;
EditType edit_type; /* translate the mask or layer? */
DrawCore * core; /* selection core for drawing bounds*/
ButtonReleaseFunc old_button_release;/* old button press member func */
MotionFunc old_motion; /* old motion member function */
ToolCtlFunc old_control; /* old control member function */
CursorUpdateFunc old_cursor_update; /* old cursor update function */
gboolean old_scroll_lock; /* old value of scroll lock */
gboolean old_auto_snap_to; /* old value of auto snap to */
gboolean first_move; /* we undo_freeze after the first */
guint context_id; /* for the statusbar */
};
/* static EditSelection structure--there is ever only one present */
static EditSelection edit_select;
static void
edit_selection_snap (GDisplay *gdisp,
int x,
int y)
{
int x1, y1;
int x2, y2;
int dx, dy;
gdisplay_untransform_coords (gdisp, x, y, &x, &y, FALSE, TRUE);
dx = x - edit_select.origx;
dy = y - edit_select.origy;
x1 = edit_select.x1 + dx;
y1 = edit_select.y1 + dy;
x2 = edit_select.x2 + dx;
y2 = edit_select.y2 + dy;
gdisplay_transform_coords (gdisp, x1, y1, &x1, &y1, TRUE);
gdisplay_transform_coords (gdisp, x2, y2, &x2, &y2, TRUE);
gdisplay_snap_rectangle (gdisp, x1, y1, x2, y2, &x1, &y1);
gdisplay_untransform_coords (gdisp, x1, y1, &x1, &y1, FALSE, TRUE);
edit_select.x = x1 - (edit_select.x1 - edit_select.origx);
edit_select.y = y1 - (edit_select.y1 - edit_select.origy);
}
void
init_edit_selection (Tool *tool,
gpointer gdisp_ptr,
GdkEventButton *bevent,
EditType edit_type)
{
GDisplay *gdisp;
Layer *layer;
int x, y;
gdisp = (GDisplay *) gdisp_ptr;
undo_push_group_start (gdisp->gimage, LAYER_DISPLACE_UNDO);
/* Move the (x, y) point from screen to image space */
gdisplay_untransform_coords (gdisp, bevent->x, bevent->y, &x, &y, FALSE, TRUE);
edit_select.x = edit_select.origx = x;
edit_select.y = edit_select.origy = y;
edit_select.cumlx = 0;
edit_select.cumly = 0;
/* Make a check to see if it should be a floating selection translation */
if (edit_type == MaskToLayerTranslate && gimage_floating_sel (gdisp->gimage))
edit_type = FloatingSelTranslate;
if (edit_type == LayerTranslate)
{
layer = gimage_get_active_layer (gdisp->gimage);
if (layer_is_floating_sel (layer))
edit_type = FloatingSelTranslate;
}
edit_select.edit_type = edit_type;
edit_select.old_button_release = tool->button_release_func;
edit_select.old_motion = tool->motion_func;
edit_select.old_control = tool->control_func;
edit_select.old_cursor_update = tool->cursor_update_func;
edit_select.old_scroll_lock = tool->scroll_lock;
edit_select.old_auto_snap_to = tool->auto_snap_to;
edit_select.first_move = TRUE;
/* find the bounding box of the selection mask -
* this is used for the case of a MaskToLayerTranslate,
* where the translation will result in floating the selection
* mask and translating the resulting layer
*/
drawable_mask_bounds (gimage_active_drawable (gdisp->gimage),
&edit_select.x1, &edit_select.y1,
&edit_select.x2, &edit_select.y2);
edit_selection_snap (gdisp, bevent->x, bevent->y);
/* reset the function pointers on the selection tool */
tool->button_release_func = edit_selection_button_release;
tool->motion_func = edit_selection_motion;
tool->control_func = edit_selection_control;
tool->cursor_update_func = edit_selection_cursor_update;
tool->scroll_lock = EDIT_SELECT_SCROLL_LOCK;
tool->auto_snap_to = FALSE;
/* pause the current selection */
selection_pause (gdisp->select);
/* initialize the statusbar display */
edit_select.context_id = gtk_statusbar_get_context_id (GTK_STATUSBAR (gdisp->statusbar), "edit_select");
gtk_statusbar_push (GTK_STATUSBAR (gdisp->statusbar), edit_select.context_id, _("Move: 0, 0"));
/* Create and start the selection core */
edit_select.core = draw_core_new (edit_selection_draw);
draw_core_start (edit_select.core,
gdisp->canvas->window,
tool);
}
void
edit_selection_button_release (Tool *tool,
GdkEventButton *bevent,
gpointer gdisp_ptr)
{
/* don't remove these unused vars yet --adam */
int x, y;
GDisplay * gdisp;
Layer *layer;
Layer *floating_layer;
GSList *layer_list;
gdisp = (GDisplay *) gdisp_ptr;
/* resume the current selection and ungrab the pointer */
selection_resume (gdisp->select);
gdk_pointer_ungrab (bevent->time);
gdk_flush ();
gtk_statusbar_pop (GTK_STATUSBAR(gdisp->statusbar), edit_select.context_id);
/* Stop and free the selection core */
draw_core_stop (edit_select.core, tool);
draw_core_free (edit_select.core);
edit_select.core = NULL;
tool->state = INACTIVE;
tool->button_release_func = edit_select.old_button_release;
tool->motion_func = edit_select.old_motion;
tool->control_func = edit_select.old_control;
tool->cursor_update_func = edit_select.old_cursor_update;
tool->scroll_lock = edit_select.old_scroll_lock;
tool->auto_snap_to = edit_select.old_auto_snap_to;
#if 0
/****************************************************************************/
/****************************************************************************/
/* This work is all done in the motion handler now - will be removed soon */
/****************************************************************************/
/****************************************************************************/
/* If the cancel button is down...Do nothing */
if (! (bevent->state & GDK_BUTTON3_MASK))
{
edit_selection_snap (gdisp, bevent->x, bevent->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)
{
switch (edit_select.edit_type)
{
case MaskTranslate:
/* translate the selection */
gimage_mask_translate (gdisp->gimage, (x - edit_select.origx),
(y - edit_select.origy));
break;
case MaskToLayerTranslate:
gimage_mask_float (gdisp->gimage, gimage_active_drawable (gdisp->gimage),
(x - edit_select.origx),
(y - edit_select.origy));
break;
case LayerTranslate:
if ((floating_layer = gimage_floating_sel (gdisp->gimage)))
floating_sel_relax (floating_layer, TRUE);
/* translate the layer--and any "linked" layers as well */
layer_list = gdisp->gimage->layers;
while (layer_list)
{
layer = (Layer *) layer_list->data;
if (layer == gdisp->gimage->active_layer ||
layer_linked (layer))
{
layer_translate (layer, (x - edit_select.origx), (y - edit_select.origy));
}
layer_list = g_slist_next (layer_list);
}
if (floating_layer)
floating_sel_rigor (floating_layer, TRUE);
break;
case FloatingSelTranslate:
layer = gimage_get_active_layer (gdisp->gimage);
floating_sel_relax (layer, TRUE);
layer_translate (layer, (x - edit_select.origx), (y - edit_select.origy));
floating_sel_rigor (layer, TRUE);
break;
}
}
/* if no movement has occured, clear the current selection */
else if ((edit_select.edit_type == MaskTranslate) ||
(edit_select.edit_type == MaskToLayerTranslate))
gimage_mask_clear (gdisp->gimage);
/* if no movement occured and the type is LayerTranslate,
* check if the layer is a floating selection. If so, anchor.
*/
else if (edit_select.edit_type == FloatingSelTranslate)
{
layer = gimage_get_active_layer (gdisp->gimage);
if (layer_is_floating_sel (layer))
floating_sel_anchor (layer);
}
}
undo_push_group_end (gdisp->gimage);
#else
/* thaw the undo again */
gimp_image_undo_thaw (gdisp->gimage);
if (edit_select.cumlx == 0 && edit_select.cumly == 0)
{
/* The user either didn't actually move the selection,
or moved it around and eventually just put it back in
exactly the same spot. */
if ((edit_select.edit_type == MaskTranslate) ||
(edit_select.edit_type == MaskToLayerTranslate))
gimage_mask_clear (gdisp->gimage);
/* if no movement occured and the type is LayerTranslate,
check if the layer is a floating selection. If so, anchor. */
else if (edit_select.edit_type == FloatingSelTranslate)
{
layer = gimage_get_active_layer (gdisp->gimage);
if (layer_is_floating_sel (layer))
floating_sel_anchor (layer);
}
}
else
{
paths_transform_xy(gdisp->gimage,edit_select.cumlx,edit_select.cumly);
}
undo_push_group_end (gdisp->gimage);
if (bevent->state & GDK_BUTTON3_MASK) /* OPERATION CANCELLED */
{
/* Operation cancelled - undo the undo-group! */
undo_pop (gdisp->gimage);
}
#endif
gdisplays_flush ();
}
void
edit_selection_motion (Tool *tool,
GdkEventMotion *mevent,
gpointer gdisp_ptr)
{
GDisplay * gdisp;
gchar offset[STATUSBAR_SIZE];
if (tool->state != ACTIVE)
{
g_warning ("Tracking motion while !ACTIVE");
return;
}
gdisp = (GDisplay *) gdisp_ptr;
gdk_flush();
draw_core_pause (edit_select.core, tool);
edit_selection_snap (gdisp, mevent->x, mevent->y);
/**********************************************adam hack*************/
/********************************************************************/
{
gint x,y;
Layer *layer;
Layer *floating_layer;
GSList *layer_list;
edit_selection_snap (gdisp, mevent->x, mevent->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 MaskTranslate:
/* translate the selection */
gimage_mask_translate (gdisp->gimage, xoffset, yoffset);
/*g_warning("%d,%d %d,%d %d,%d %d,%d %d,%d %d,%d",
edit_select.origx,edit_select.origy,
edit_select.cumlx,edit_select.cumly,
xoffset,yoffset,
x,y,
edit_select.x1,edit_select.y1,
edit_select.x2,edit_select.y2);*/
if (edit_select.first_move)
{
gimp_image_undo_freeze (gdisp->gimage);
edit_select.first_move = FALSE;
}
edit_select.origx = x;
edit_select.origy = y;
break;
case LayerTranslate:
if ((floating_layer = gimage_floating_sel (gdisp->gimage)))
floating_sel_relax (floating_layer, TRUE);
/* translate the layer--and any "linked" layers as well */
layer_list = gdisp->gimage->layers;
while (layer_list)
{
layer = (Layer *) layer_list->data;
if (layer == gdisp->gimage->active_layer ||
layer_linked (layer))
{
layer_translate (layer, xoffset, yoffset);
}
layer_list = g_slist_next (layer_list);
}
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 MaskToLayerTranslate:
gimage_mask_float (gdisp->gimage, gimage_active_drawable (gdisp->gimage),
0, 0);
if (edit_select.first_move)
{
gimp_image_undo_freeze (gdisp->gimage);
edit_select.first_move = FALSE;
}
edit_select.edit_type = FloatingSelTranslate;
edit_select.origx -= edit_select.x1;
edit_select.origy -= edit_select.y1;
break;
case FloatingSelTranslate:
layer = gimage_get_active_layer (gdisp->gimage);
floating_sel_relax (layer, TRUE);
layer_translate (layer, xoffset, yoffset);
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");
}
}
gdisplay_flush(gdisp);
}
/********************************************************************/
/********************************************************************/
gtk_statusbar_pop (GTK_STATUSBAR(gdisp->statusbar), edit_select.context_id);
if (gdisp->dot_for_dot)
{
g_snprintf (offset, STATUSBAR_SIZE, gdisp->cursor_format_str,
_("Move: "),
edit_select.cumlx,
", ",
edit_select.cumly);
}
else /* show real world units */
{
gdouble unit_factor = gimp_unit_get_factor (gdisp->gimage->unit);
g_snprintf (offset, STATUSBAR_SIZE, gdisp->cursor_format_str,
_("Move: "),
(edit_select.cumlx) * unit_factor /
gdisp->gimage->xresolution,
", ",
(edit_select.cumly) * unit_factor /
gdisp->gimage->yresolution);
}
gtk_statusbar_push (GTK_STATUSBAR(gdisp->statusbar), edit_select.context_id,
offset);
draw_core_resume (edit_select.core, tool);
}
void
edit_selection_draw (Tool *tool)
{
int i;
int diff_x, diff_y;
GDisplay * gdisp;
GdkSegment * seg;
Selection * select;
Layer *layer;
GSList *layer_list;
int floating_sel;
int x1, y1, x2, y2;
int x3, y3, x4, y4;
int off_x, off_y;
gdisp = (GDisplay *) tool->gdisp_ptr;
select = gdisp->select;
if (edit_select.edit_type == FloatingSelTranslate ||
edit_select.edit_type == MaskTranslate)
{
diff_x = SCALEX (gdisp, edit_select.cumlx);
diff_y = SCALEY (gdisp, edit_select.cumly);
}
else
{
diff_x = 0;
diff_y = 0;
}
switch (edit_select.edit_type)
{
case MaskTranslate:
layer = gimage_get_active_layer (gdisp->gimage);
floating_sel = layer_is_floating_sel (layer);
/* offset the current selection */
seg = select->segs_in;
for (i = 0; i < select->num_segs_in; i++)
{
seg->x1 += diff_x;
seg->x2 += diff_x;
seg->y1 += diff_y;
seg->y2 += diff_y;
seg++;
}
seg = select->segs_out;
for (i = 0; i < select->num_segs_out; i++)
{
seg->x1 += diff_x;
seg->x2 += diff_x;
seg->y1 += diff_y;
seg->y2 += diff_y;
seg++;
}
if (! floating_sel)
gdk_draw_segments (edit_select.core->win, edit_select.core->gc,
select->segs_in, select->num_segs_in);
gdk_draw_segments (edit_select.core->win, edit_select.core->gc,
select->segs_out, select->num_segs_out);
/* reset the current selection */
seg = select->segs_in;
for (i = 0; i < select->num_segs_in; i++)
{
seg->x1 -= diff_x;
seg->x2 -= diff_x;
seg->y1 -= diff_y;
seg->y2 -= diff_y;
seg++;
}
seg = select->segs_out;
for (i = 0; i < select->num_segs_out; i++)
{
seg->x1 -= diff_x;
seg->x2 -= diff_x;
seg->y1 -= diff_y;
seg->y2 -= diff_y;
seg++;
}
break;
case MaskToLayerTranslate:
gdisplay_transform_coords (gdisp, edit_select.x1, edit_select.y1, &x1, &y1, TRUE);
gdisplay_transform_coords (gdisp, edit_select.x2, edit_select.y2, &x2, &y2, TRUE);
gdk_draw_rectangle (edit_select.core->win,
edit_select.core->gc, 0,
x1 + diff_x, y1 + diff_y,
x2 - x1, y2 - y1);
break;
case LayerTranslate:
gdisplay_transform_coords (gdisp, 0, 0, &x1, &y1, TRUE);
gdisplay_transform_coords (gdisp,
drawable_width ( GIMP_DRAWABLE (gdisp->gimage->active_layer)),
drawable_height ( GIMP_DRAWABLE (gdisp->gimage->active_layer)),
&x2, &y2, TRUE);
/* Now, expand the rectangle to include all linked layers as well */
layer_list = gdisp->gimage->layers;
while (layer_list)
{
layer = (Layer *) layer_list->data;
if (((layer) != gdisp->gimage->active_layer) && layer_linked (layer))
{
drawable_offsets (GIMP_DRAWABLE (layer), &off_x, &off_y);
gdisplay_transform_coords (gdisp, off_x, off_y, &x3, &y3, FALSE);
gdisplay_transform_coords (gdisp,
off_x + drawable_width (GIMP_DRAWABLE (layer)),
off_y + drawable_height (GIMP_DRAWABLE (layer)),
&x4, &y4, FALSE);
if (x3 < x1)
x1 = x3;
if (y3 < y1)
y1 = y3;
if (x4 > x2)
x2 = x4;
if (y4 > y2)
y2 = y4;
}
layer_list = g_slist_next (layer_list);
}
gdk_draw_rectangle (edit_select.core->win,
edit_select.core->gc, 0,
x1 + diff_x, y1 + diff_y,
x2 - x1, y2 - y1);
break;
case FloatingSelTranslate:
seg = select->segs_in;
for (i = 0; i < select->num_segs_in; i++)
{
seg->x1 += diff_x;
seg->x2 += diff_x;
seg->y1 += diff_y;
seg->y2 += diff_y;
seg++;
}
/* Draw the items */
gdk_draw_segments (edit_select.core->win, edit_select.core->gc,
select->segs_in, select->num_segs_in);
/* reset the the current selection */
seg = select->segs_in;
for (i = 0; i < select->num_segs_in; i++)
{
seg->x1 -= diff_x;
seg->x2 -= diff_x;
seg->y1 -= diff_y;
seg->y2 -= diff_y;
seg++;
}
break;
}
}
void
edit_selection_control (Tool *tool,
ToolAction action,
gpointer gdisp_ptr)
{
switch (action)
{
case PAUSE :
draw_core_pause (edit_select.core, tool);
break;
case RESUME :
draw_core_resume (edit_select.core, tool);
break;
case HALT :
draw_core_stop (edit_select.core, tool);
draw_core_free (edit_select.core);
break;
default:
break;
}
}
void
edit_selection_cursor_update (Tool *tool,
GdkEventMotion *mevent,
gpointer gdisp_ptr)
{
GDisplay *gdisp;
gdisp = (GDisplay *) gdisp_ptr;
gdisplay_install_tool_cursor (gdisp, GDK_FLEUR);
}
static int
process_event_queue_keys (GdkEventKey *kevent, ...)
/* GdkKeyType, GdkModifierType, value ... 0
* could move this function to a more central location so it can be used
* by other tools? */
{
#define FILTER_MAX_KEYS 50
va_list argp;
GdkEvent *event;
GList *list = NULL;
guint keys[FILTER_MAX_KEYS];
GdkModifierType modifiers[FILTER_MAX_KEYS];
int values[FILTER_MAX_KEYS];
int i = 0, nkeys = 0, value = 0, done = 0, discard_event;
GtkWidget *orig_widget;
va_start(argp, kevent);
while (nkeys <FILTER_MAX_KEYS && (keys[nkeys] = va_arg (argp, guint)) != 0)
{
modifiers[nkeys] = va_arg (argp, GdkModifierType);
values[nkeys] = va_arg (argp, int);
nkeys++;
}
va_end(argp);
for (i = 0; i < nkeys; i++)
if (kevent->keyval == keys[i] && kevent->state == modifiers[i])
value += values[i];
orig_widget = gtk_get_event_widget((GdkEvent*)kevent);
while (gdk_events_pending() > 0 && !done)
{
discard_event = 0;
event = gdk_event_get();
if (orig_widget != gtk_get_event_widget(event))
{
done = 1;
}
else
{
if (event->any.type == GDK_KEY_PRESS)
{
for (i = 0; i < nkeys; i++)
if (event->key.keyval == keys[i] &&
event->key.state == modifiers[i])
{
discard_event = 1;
value += values[i];
}
if (!discard_event)
done = 1;
}
/* 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 = 1;
}
if (!discard_event)
list = g_list_prepend(list, event);
else
gdk_event_free(event);
}
while (list) /* unget the unused events and free the list */
{
gdk_event_put((GdkEvent*)list->data);
gdk_event_free((GdkEvent*)list->data);
list = g_list_remove_link (list, list);
}
return value;
#undef FILTER_MAX_KEYS
}
void
edit_sel_arrow_keys_func (Tool *tool,
GdkEventKey *kevent,
gpointer gdisp_ptr)
{
int inc_x, inc_y, mask_inc_x, mask_inc_y;
GDisplay *gdisp;
Layer *layer;
Layer *floating_layer;
GSList *layer_list;
EditType edit_type;
layer = NULL;
gdisp = (GDisplay *) gdisp_ptr;
inc_x = process_event_queue_keys(kevent,
GDK_Left, 0, -1,
GDK_Left, GDK_SHIFT_MASK, -1*ARROW_VELOCITY,
GDK_Right, 0, 1,
GDK_Right, GDK_SHIFT_MASK, ARROW_VELOCITY,
0);
inc_y = process_event_queue_keys(kevent,
GDK_Up, 0, -1,
GDK_Up, GDK_SHIFT_MASK, -1*ARROW_VELOCITY,
GDK_Down, 0, 1,
GDK_Down, GDK_SHIFT_MASK, ARROW_VELOCITY,
0);
mask_inc_x = process_event_queue_keys(kevent,
GDK_Left, GDK_MOD1_MASK, -1,
GDK_Left, (GDK_MOD1_MASK | GDK_SHIFT_MASK),
-1*ARROW_VELOCITY,
GDK_Right, GDK_MOD1_MASK, 1,
GDK_Right, (GDK_MOD1_MASK | GDK_SHIFT_MASK),
ARROW_VELOCITY,
0);
mask_inc_y = process_event_queue_keys(kevent,
GDK_Up, GDK_MOD1_MASK, -1,
GDK_Up, (GDK_MOD1_MASK | GDK_SHIFT_MASK),
-1*ARROW_VELOCITY,
GDK_Down, GDK_MOD1_MASK, 1,
GDK_Down, (GDK_MOD1_MASK | GDK_SHIFT_MASK),
ARROW_VELOCITY,
0);
if (inc_x == 0 && inc_y == 0 && mask_inc_x == 0 && mask_inc_y == 0)
return;
undo_push_group_start (gdisp->gimage, LAYER_DISPLACE_UNDO);
if (mask_inc_x != 0 || mask_inc_y != 0)
gimage_mask_translate (gdisp->gimage, mask_inc_x, mask_inc_y);
if (inc_x != 0 || inc_y != 0)
{
layer = gimage_get_active_layer (gdisp->gimage);
if (layer_is_floating_sel (layer))
edit_type = FloatingSelTranslate;
else
edit_type = LayerTranslate;
switch (edit_type)
{
case MaskToLayerTranslate:
gimage_mask_float (gdisp->gimage,
gimage_active_drawable (gdisp->gimage),
inc_x, inc_y);
break;
case LayerTranslate:
if ((floating_layer = gimage_floating_sel (gdisp->gimage)))
floating_sel_relax (floating_layer, TRUE);
/* translate the layer--and any "linked" layers as well */
layer_list = gdisp->gimage->layers;
while (layer_list)
{
layer = (Layer *) layer_list->data;
if (((layer) == gdisp->gimage->active_layer) || layer_linked (layer))
layer_translate (layer, inc_x, inc_y);
layer_list = g_slist_next (layer_list);
}
if (floating_layer)
floating_sel_rigor (floating_layer, TRUE);
break;
case FloatingSelTranslate:
floating_sel_relax (layer, TRUE);
layer_translate (layer, inc_x, inc_y);
floating_sel_rigor (layer, TRUE);
break;
default:
/* this won't occur */
break;
}
}
undo_push_group_end (gdisp->gimage);
gdisplays_flush ();
}
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