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gimp/app/disp_callbacks.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 <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpcolor/gimpcolor.h"
#include "core/core-types.h"
#include "tools/tools-types.h"
#include "base/pixel-region.h"
#include "base/temp-buf.h"
#include "base/tile-manager.h"
#include "paint-funcs/paint-funcs.h"
#include "core/gimp.h"
#include "core/gimpbuffer.h"
#include "core/gimpcontext.h"
#include "core/gimpedit.h"
#include "core/gimpimage.h"
#include "core/gimplayer.h"
#include "core/gimppattern.h"
#include "core/gimptoolinfo.h"
#include "tools/gimpbucketfilltool.h"
#include "tools/gimpfuzzyselecttool.h"
#include "tools/gimpmovetool.h"
#include "tools/tool_manager.h"
#include "widgets/gimpwidgets-utils.h"
#include "gui/info-window.h"
#include "gui/layer-select.h"
#include "devices.h"
#include "dialog_handler.h"
#include "disp_callbacks.h"
#include "gdisplay.h"
#include "gimprc.h"
#include "scale.h"
#include "scroll.h"
#include "selection.h"
#include "undo.h"
#include "libgimp/gimpintl.h"
static void
gdisplay_redraw (GDisplay *gdisp,
gint x,
gint y,
gint w,
gint h)
{
glong x1, y1, x2, y2; /* coordinate of rectangle corners */
x1 = x;
y1 = y;
x2 = (x + w);
y2 = (y + h);
x1 = CLAMP (x1, 0, gdisp->disp_width);
y1 = CLAMP (y1, 0, gdisp->disp_height);
x2 = CLAMP (x2, 0, gdisp->disp_width);
y2 = CLAMP (y2, 0, gdisp->disp_height);
if ((x2 - x1) && (y2 - y1))
{
gdisplay_expose_area (gdisp,
x1, y1,
(x2 - x1), (y2 - y1));
gdisplay_flush_displays_only (gdisp);
}
}
static void
gdisplay_check_device_cursor (GDisplay *gdisp)
{
GList *list;
/* gdk_input_list_devices returns an internal list, so we shouldn't
* free it afterwards
*/
for (list = gdk_input_list_devices(); list; list = g_list_next (list))
{
GdkDeviceInfo *info = (GdkDeviceInfo *) list->data;
if (info->deviceid == current_device)
{
gdisp->draw_cursor = !info->has_cursor;
break;
}
}
}
static int
key_to_state (gint key)
{
switch (key)
{
case GDK_Alt_L:
case GDK_Alt_R:
return GDK_MOD1_MASK;
case GDK_Shift_L:
case GDK_Shift_R:
return GDK_SHIFT_MASK;
case GDK_Control_L:
case GDK_Control_R:
return GDK_CONTROL_MASK;
default:
return 0;
}
}
static void
gdisplay_vscrollbar_update (GtkAdjustment *adjustment,
GDisplay *gdisp)
{
scroll_display (gdisp, 0, (adjustment->value - gdisp->offset_y));
}
static void
gdisplay_hscrollbar_update (GtkAdjustment *adjustment,
GDisplay *gdisp)
{
scroll_display (gdisp, (adjustment->value - gdisp->offset_x), 0);
}
gint
gdisplay_shell_events (GtkWidget *widget,
GdkEvent *event,
GDisplay *gdisp)
{
switch (event->type)
{
case GDK_KEY_PRESS:
case GDK_BUTTON_PRESS:
/* Setting the context's display automatically sets the image, too */
gimp_context_set_display (gimp_get_user_context (gdisp->gimage->gimp),
gdisp);
break;
default:
break;
}
return FALSE;
}
gint
gdisplay_canvas_events (GtkWidget *canvas,
GdkEvent *event)
{
GDisplay *gdisp;
GimpTool *active_tool;
GdkEventExpose *eevent;
GdkEventMotion *mevent;
GdkEventButton *bevent;
GdkEventKey *kevent;
gdouble tx = 0;
gdouble ty = 0;
guint state = 0;
gint return_val = FALSE;
static gboolean scrolled = FALSE;
static guint key_signal_id = 0;
gboolean update_cursor = FALSE;
gdisp = (GDisplay *) gtk_object_get_user_data (GTK_OBJECT (canvas));
if (!canvas->window)
return FALSE;
active_tool = tool_manager_get_active (gdisp->gimage->gimp);
/* If this is the first event... */
if (!gdisp->select)
{
/* create the selection object */
gdisp->select = selection_create (gdisp->canvas->window, gdisp,
gdisp->gimage->height,
gdisp->gimage->width,
gimprc.marching_speed);
gdisp->disp_width = gdisp->canvas->allocation.width;
gdisp->disp_height = gdisp->canvas->allocation.height;
/* create GC for scrolling */
gdisp->scroll_gc = gdk_gc_new (gdisp->canvas->window);
gdk_gc_set_exposures (gdisp->scroll_gc, TRUE);
/* set up the scrollbar observers */
gtk_signal_connect (GTK_OBJECT (gdisp->hsbdata), "value_changed",
GTK_SIGNAL_FUNC (gdisplay_hscrollbar_update),
gdisp);
gtk_signal_connect (GTK_OBJECT (gdisp->vsbdata), "value_changed",
GTK_SIGNAL_FUNC (gdisplay_vscrollbar_update),
gdisp);
/* setup scale properly */
setup_scale (gdisp);
}
/* Find out what device the event occurred upon */
if (! gdisp->gimage->gimp->busy && devices_check_change (event))
gdisplay_check_device_cursor (gdisp);
switch (event->type)
{
case GDK_EXPOSE:
eevent = (GdkEventExpose *) event;
gdisplay_redraw (gdisp,
eevent->area.x, eevent->area.y,
eevent->area.width, eevent->area.height);
break;
case GDK_CONFIGURE:
if ((gdisp->disp_width != gdisp->canvas->allocation.width) ||
(gdisp->disp_height != gdisp->canvas->allocation.height))
{
gdisp->disp_width = gdisp->canvas->allocation.width;
gdisp->disp_height = gdisp->canvas->allocation.height;
resize_display (gdisp, FALSE, FALSE);
}
break;
case GDK_LEAVE_NOTIFY:
if (((GdkEventCrossing *) event)->mode != GDK_CROSSING_NORMAL)
return TRUE;
gdisplay_update_cursor (gdisp, 0, 0);
gtk_label_set_text (GTK_LABEL (gdisp->cursor_label), "");
info_window_update_extended (gdisp, -1, -1);
case GDK_PROXIMITY_OUT:
gdisp->proximity = FALSE;
break;
case GDK_ENTER_NOTIFY:
if (((GdkEventCrossing *) event)->mode != GDK_CROSSING_NORMAL)
return TRUE;
/* Actually, should figure out tx,ty here */
break;
case GDK_BUTTON_PRESS:
bevent = (GdkEventButton *) event;
state = bevent->state;
/* ignore new mouse events */
if (gdisp->gimage->gimp->busy)
return TRUE;
switch (bevent->button)
{
case 1:
state |= GDK_BUTTON1_MASK;
gtk_grab_add (canvas);
/* This is a hack to prevent other stuff being run in the middle of
* a tool operation (like changing image types.... brrrr). We just
* block all the keypress event. A better solution is to implement
* some sort of locking for images.
* Note that this is dependent on specific GTK behavior, and isn't
* guaranteed to work in future versions of GTK.
* -Yosh
*/
if (key_signal_id == 0)
key_signal_id = gtk_signal_connect (GTK_OBJECT (canvas),
"key_press_event",
GTK_SIGNAL_FUNC (gtk_true),
NULL);
/* FIXME!!! This code is ugly */
if (active_tool && (GIMP_IS_MOVE_TOOL (active_tool) ||
! gimp_image_is_empty (gdisp->gimage)))
{
if (active_tool->auto_snap_to)
{
gdisplay_snap_point (gdisp, bevent->x, bevent->y, &tx, &ty);
bevent->x = tx;
bevent->y = ty;
update_cursor = TRUE;
}
/* reset the current tool if ... */
if ((/* it has no drawable */
! active_tool->drawable ||
/* or a drawable different from the current one */
(gimp_image_active_drawable (gdisp->gimage) !=
active_tool->drawable)) &&
/* and doesn't want to be preserved across drawable changes */
! active_tool->preserve)
{
tool_manager_initialize_tool (gdisp->gimage->gimp,
active_tool, gdisp);
active_tool = tool_manager_get_active (gdisp->gimage->gimp);
}
/* otherwise set it's drawable if it has none */
else if (! active_tool->drawable)
{
active_tool->drawable =
gimp_image_active_drawable (gdisp->gimage);
}
gimp_tool_button_press (active_tool, bevent, gdisp);
}
break;
case 2:
state |= GDK_BUTTON2_MASK;
scrolled = TRUE;
gtk_grab_add (canvas);
start_grab_and_scroll (gdisp, bevent);
break;
case 3:
state |= GDK_BUTTON3_MASK;
{
gint x, y;
gimp_menu_position (GTK_MENU (gdisp->ifactory->widget), &x, &y);
gtk_item_factory_popup_with_data (gdisp->ifactory,
gdisp->gimage, NULL,
x, y,
3, bevent->time);
}
return_val = TRUE;
break;
/* wheelmouse support */
case 4:
state |= GDK_BUTTON4_MASK;
if (state & GDK_SHIFT_MASK)
{
change_scale (gdisp, GIMP_ZOOM_IN);
}
else
{
GtkAdjustment *adj =
(state & GDK_CONTROL_MASK) ? gdisp->hsbdata : gdisp->vsbdata;
gfloat new_value = adj->value - adj->page_increment / 2;
new_value =
CLAMP (new_value, adj->lower, adj->upper - adj->page_size);
gtk_adjustment_set_value (adj, new_value);
}
return_val = TRUE;
break;
case 5:
state |= GDK_BUTTON5_MASK;
if (state & GDK_SHIFT_MASK)
{
change_scale (gdisp, GIMP_ZOOM_OUT);
}
else
{
GtkAdjustment *adj =
(state & GDK_CONTROL_MASK) ? gdisp->hsbdata : gdisp->vsbdata;
gfloat new_value = adj->value + adj->page_increment / 2;
new_value = CLAMP (new_value,
adj->lower, adj->upper - adj->page_size);
gtk_adjustment_set_value (adj, new_value);
}
return_val = TRUE;
break;
default:
break;
}
break;
case GDK_BUTTON_RELEASE:
bevent = (GdkEventButton *) event;
state = bevent->state;
/* ugly side condition: all operations which set busy cursors are
* invoked on BUTTON_RELEASE, thus no new BUTTON_PRESS events are
* accepted while Gimp is busy, thus it should be safe to block
* BUTTON_RELEASE. --Mitch
*
* ugly: fuzzy_select sets busy cursors while ACTIVE.
*/
if (gdisp->gimage->gimp->busy &&
! (GIMP_IS_FUZZY_SELECT_TOOL (active_tool) &&
active_tool->state == ACTIVE))
return TRUE;
switch (bevent->button)
{
case 1:
state &= ~GDK_BUTTON1_MASK;
/* Lame hack. See above */
if (key_signal_id)
{
gtk_signal_disconnect (GTK_OBJECT (canvas), key_signal_id);
key_signal_id = 0;
}
gtk_grab_remove (canvas);
gdk_pointer_ungrab (bevent->time); /* fixes pointer grab bug */
if (active_tool && (GIMP_IS_MOVE_TOOL (active_tool) ||
! gimp_image_is_empty (gdisp->gimage)))
{
if (active_tool->state == ACTIVE)
{
if (active_tool->auto_snap_to)
{
gdisplay_snap_point (gdisp, bevent->x, bevent->y, &tx, &ty);
bevent->x = tx;
bevent->y = ty;
update_cursor = TRUE;
}
gimp_tool_button_release (active_tool, bevent, gdisp);
}
}
break;
case 2:
state &= ~GDK_BUTTON2_MASK;
scrolled = FALSE;
gtk_grab_remove (canvas);
end_grab_and_scroll (gdisp, bevent);
break;
case 3:
state &= ~GDK_BUTTON3_MASK;
break;
/* wheelmouse support */
case 4:
state &= ~GDK_BUTTON4_MASK;
return_val = TRUE;
break;
case 5:
state &= ~GDK_BUTTON5_MASK;
return_val = TRUE;
break;
default:
break;
}
break;
case GDK_MOTION_NOTIFY:
mevent = (GdkEventMotion *) event;
state = mevent->state;
/* for the same reason we block BUTTON_RELEASE,
* we block MOTION_NOTIFY. --Mitch
*
* ugly: fuzzy_select sets busy cursors while ACTIVE.
*/
if (gdisp->gimage->gimp->busy &&
! (GIMP_IS_FUZZY_SELECT_TOOL (active_tool) &&
active_tool->state == ACTIVE))
return TRUE;
/* Ask for the pointer position, but ignore it except for cursor
* handling, so motion events sync with the button press/release events
*/
if (mevent->is_hint)
{
gdk_input_window_get_pointer (canvas->window, current_device, &tx, &ty,
NULL, NULL, NULL, NULL);
}
else
{
tx = mevent->x;
ty = mevent->y;
}
update_cursor = TRUE;
if (!gdisp->proximity)
{
gdisp->proximity = TRUE;
gdisplay_check_device_cursor (gdisp);
}
if (active_tool && (GIMP_IS_MOVE_TOOL(active_tool) ||
! gimp_image_is_empty (gdisp->gimage)) &&
(mevent->state & GDK_BUTTON1_MASK))
{
if (active_tool->state == ACTIVE)
{
/* if the first mouse button is down, check for automatic
* scrolling...
*/
if ((mevent->state & GDK_BUTTON1_MASK) &&
!active_tool->scroll_lock)
{
if (mevent->x < 0 || mevent->y < 0 ||
mevent->x > gdisp->disp_width ||
mevent->y > gdisp->disp_height)
scroll_to_pointer_position (gdisp, mevent);
}
if (active_tool->auto_snap_to)
{
gdisplay_snap_point (gdisp, mevent->x, mevent->y, &tx, &ty);
mevent->x = tx;
mevent->y = ty;
update_cursor = TRUE;
}
gimp_tool_motion (active_tool, mevent, gdisp);
}
}
else if ((mevent->state & GDK_BUTTON2_MASK) && scrolled)
{
grab_and_scroll (gdisp, mevent);
}
if (/* Should we have a tool... */
active_tool &&
/* and this event is NOT driving
* button press handlers ...
*/
!(state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK)))
{
/* ...then preconditions to modify a tool
* operator state have been met.
*/
gimp_tool_oper_update (active_tool, mevent, gdisp);
}
break;
case GDK_KEY_PRESS:
kevent = (GdkEventKey *) event;
state = kevent->state;
/* ignore any key presses */
if (gdisp->gimage->gimp->busy)
return TRUE;
switch (kevent->keyval)
{
case GDK_Left: case GDK_Right:
case GDK_Up: case GDK_Down:
if (active_tool && ! gimp_image_is_empty (gdisp->gimage))
gimp_tool_arrow_key (active_tool, kevent, gdisp);
return_val = TRUE;
break;
case GDK_Tab:
if (kevent->state & GDK_MOD1_MASK &&
!gimp_image_is_empty (gdisp->gimage))
layer_select_init (gdisp->gimage, 1, kevent->time);
if (kevent->state & GDK_CONTROL_MASK &&
!gimp_image_is_empty (gdisp->gimage))
layer_select_init (gdisp->gimage, -1, kevent->time);
/* Hide or show all dialogs */
if (! kevent->state)
dialog_toggle ();
return_val = TRUE;
break;
/* Update the state based on modifiers being pressed */
case GDK_Alt_L: case GDK_Alt_R:
case GDK_Shift_L: case GDK_Shift_R:
case GDK_Control_L: case GDK_Control_R:
state |= key_to_state (kevent->keyval);
/* For all modifier keys: call the tools modifier_key_func */
if (active_tool && !gimp_image_is_empty (gdisp->gimage))
{
gdk_input_window_get_pointer (canvas->window, current_device,
&tx, &ty, NULL, NULL, NULL, NULL);
gimp_tool_modifier_key (active_tool, kevent, gdisp);
return_val = TRUE;
}
break;
}
break;
case GDK_KEY_RELEASE:
kevent = (GdkEventKey *) event;
state = kevent->state;
/* ignore any key releases */
if (gdisp->gimage->gimp->busy)
return TRUE;
switch (kevent->keyval)
{
case GDK_Alt_L: case GDK_Alt_R:
case GDK_Shift_L: case GDK_Shift_R:
case GDK_Control_L: case GDK_Control_R:
state &= ~key_to_state (kevent->keyval);
/* For all modifier keys: call the tools modifier_key_func */
if (active_tool && !gimp_image_is_empty (gdisp->gimage))
{
gdk_input_window_get_pointer (canvas->window, current_device,
&tx, &ty, NULL, NULL, NULL, NULL);
gimp_tool_modifier_key (active_tool, kevent, gdisp);
return_val = TRUE;
}
break;
}
return_val = TRUE;
break;
default:
break;
}
/* if we reached this point in gimp_busy mode, return now */
if (gdisp->gimage->gimp->busy)
return TRUE;
/* Cursor update support */
/* no_cursor_updating is TRUE (=1) when */
/* <Toolbox>/File/Preferences.../Interface/... */
/* Image Windows/Disable Cursor Updating is TOGGLED ON */
if (gimprc.no_cursor_updating == 0)
{
active_tool = tool_manager_get_active (gdisp->gimage->gimp);
if (active_tool && !gimp_image_is_empty (gdisp->gimage) &&
!(state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK)))
{
GdkEventMotion me;
me.x = tx; me.y = ty;
me.state = state;
gimp_tool_cursor_update (active_tool, &me, gdisp);
}
else if (gimp_image_is_empty (gdisp->gimage))
{
gdisplay_install_tool_cursor (gdisp,
GIMP_BAD_CURSOR,
GIMP_TOOL_CURSOR_NONE,
GIMP_CURSOR_MODIFIER_NONE);
}
}
if (update_cursor)
gdisplay_update_cursor (gdisp, tx, ty);
return return_val;
}
gint
gdisplay_hruler_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
GDisplay *gdisp;
gdisp = (GDisplay *) data;
if (gdisp->gimage->gimp->busy)
return TRUE;
if (event->button == 1)
{
GimpToolInfo *tool_info;
GimpTool *active_tool;
tool_info = tool_manager_get_info_by_type (gdisp->gimage->gimp,
GIMP_TYPE_MOVE_TOOL);
if (tool_info)
{
gimp_context_set_tool (gimp_get_user_context (gdisp->gimage->gimp),
tool_info);
active_tool = tool_manager_get_active (gdisp->gimage->gimp);
if (active_tool)
{
gimp_move_tool_start_hguide (active_tool, gdisp);
gtk_grab_add (gdisp->canvas);
}
}
}
return FALSE;
}
gint
gdisplay_vruler_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
GDisplay *gdisp;
gdisp = (GDisplay *) data;
if (gdisp->gimage->gimp->busy)
return TRUE;
if (event->button == 1)
{
GimpToolInfo *tool_info;
GimpTool *active_tool;
tool_info = tool_manager_get_info_by_type (gdisp->gimage->gimp,
GIMP_TYPE_MOVE_TOOL);
if (tool_info)
{
gimp_context_set_tool (gimp_get_user_context (gdisp->gimage->gimp),
tool_info);
active_tool = tool_manager_get_active (gdisp->gimage->gimp);
if (active_tool)
{
gimp_move_tool_start_vguide (active_tool, gdisp);
gtk_grab_add (gdisp->canvas);
}
}
}
return FALSE;
}
static void
gdisplay_origin_menu_position (GtkMenu *menu,
gint *x,
gint *y,
gpointer data)
{
GtkWidget *origin;
gint origin_x;
gint origin_y;
origin = (GtkWidget *) data;
gdk_window_get_origin (origin->window, &origin_x, &origin_y);
*x = origin_x + origin->allocation.x + origin->allocation.width - 1;
*y = origin_y + origin->allocation.y + (origin->allocation.height - 1) / 2;
if (*x + GTK_WIDGET (menu)->allocation.width > gdk_screen_width ())
*x -= (GTK_WIDGET (menu)->allocation.width + origin->allocation.width);
if (*y + GTK_WIDGET (menu)->allocation.height > gdk_screen_height ())
*y -= (GTK_WIDGET (menu)->allocation.height);
}
gint
gdisplay_origin_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
GDisplay *gdisp;
gdisp = (GDisplay *) data;
if (! gdisp->gimage->gimp->busy && event->button == 1)
{
gint x, y;
gdisplay_origin_menu_position (GTK_MENU (gdisp->ifactory->widget),
&x, &y, widget);
gtk_item_factory_popup_with_data (gdisp->ifactory,
gdisp->gimage, NULL,
x, y,
1, event->time);
}
/* Stop the signal emission so the button doesn't grab the
* pointer away from us
*/
gtk_signal_emit_stop_by_name (GTK_OBJECT (widget), "button_press_event");
return FALSE;
}
void
gdisplay_drop_drawable (GtkWidget *widget,
GimpViewable *viewable,
gpointer data)
{
GimpDrawable *drawable;
GDisplay *gdisp;
GimpImage *src_gimage;
GimpLayer *new_layer;
GimpImage *dest_gimage;
gint src_width, src_height;
gint dest_width, dest_height;
gint off_x, off_y;
TileManager *tiles;
PixelRegion srcPR, destPR;
guchar bg[MAX_CHANNELS];
gint bytes;
GimpImageBaseType type;
gdisp = (GDisplay *) data;
if (gdisp->gimage->gimp->busy)
return;
drawable = GIMP_DRAWABLE (viewable);
src_gimage = gimp_drawable_gimage (drawable);
src_width = gimp_drawable_width (drawable);
src_height = gimp_drawable_height (drawable);
switch (gimp_drawable_type (drawable))
{
case RGB_GIMAGE: case RGBA_GIMAGE:
bytes = 4; type = RGB;
break;
case GRAY_GIMAGE: case GRAYA_GIMAGE:
bytes = 2; type = GRAY;
break;
case INDEXED_GIMAGE: case INDEXEDA_GIMAGE:
bytes = 4; type = INDEXED;
break;
default:
bytes = 3; type = RGB;
break;
}
gimp_image_get_background (src_gimage, drawable, bg);
tiles = tile_manager_new (src_width, src_height, bytes);
pixel_region_init (&srcPR, gimp_drawable_data (drawable),
0, 0, src_width, src_height, FALSE);
pixel_region_init (&destPR, tiles,
0, 0, src_width, src_height, TRUE);
if (type == INDEXED)
{
/* If the layer is indexed...we need to extract pixels */
extract_from_region (&srcPR, &destPR, NULL,
gimp_drawable_cmap (drawable), bg, type,
gimp_drawable_has_alpha (drawable), FALSE);
}
else if (bytes > srcPR.bytes)
{
/* If the layer doesn't have an alpha channel, add one */
add_alpha_region (&srcPR, &destPR);
}
else
{
/* Otherwise, do a straight copy */
copy_region (&srcPR, &destPR);
}
dest_gimage = gdisp->gimage;
dest_width = dest_gimage->width;
dest_height = dest_gimage->height;
undo_push_group_start (dest_gimage, EDIT_PASTE_UNDO);
new_layer =
gimp_layer_new_from_tiles (dest_gimage,
gimp_image_base_type_with_alpha (dest_gimage),
tiles,
_("Pasted Layer"),
OPAQUE_OPACITY, NORMAL_MODE);
tile_manager_destroy (tiles);
if (new_layer)
{
gimp_drawable_set_gimage (GIMP_DRAWABLE (new_layer), dest_gimage);
off_x = (dest_gimage->width - src_width) / 2;
off_y = (dest_gimage->height - src_height) / 2;
gimp_layer_translate (new_layer, off_x, off_y);
gimp_image_add_layer (dest_gimage, new_layer, -1);
undo_push_group_end (dest_gimage);
gdisplays_flush ();
gimp_context_set_display (gimp_get_user_context (gdisp->gimage->gimp),
gdisp);
}
}
static void
gdisplay_bucket_fill (GtkWidget *widget,
BucketFillMode fill_mode,
guchar orig_color[],
TempBuf *orig_pat_buf,
gpointer data)
{
GimpImage *gimage;
GimpDrawable *drawable;
TileManager *buf_tiles;
PixelRegion bufPR;
GimpToolInfo *tool_info;
GimpContext *context;
gint x1, x2, y1, y2;
gint bytes;
gboolean has_alpha;
guchar color[3];
TempBuf *pat_buf = NULL;
gboolean new_buf = FALSE;
gimage = ((GDisplay *) data)->gimage;
if (gimage->gimp->busy)
return;
drawable = gimp_image_active_drawable (gimage);
if (! drawable)
return;
gimp_set_busy (gimage->gimp);
/* Get the bucket fill context */
tool_info = tool_manager_get_info_by_type (gimage->gimp,
GIMP_TYPE_BUCKET_FILL_TOOL);
if (tool_info && tool_info->context)
{
context = tool_info->context;
}
else
{
context = gimp_get_user_context (gimage->gimp);
}
/* Transform the passed data for the dest image */
if (fill_mode == FG_BUCKET_FILL)
{
gimp_image_transform_color (gimage, drawable, orig_color, color, RGB);
}
else
{
if (((orig_pat_buf->bytes == 3) && ! gimp_drawable_is_rgb (drawable)) ||
((orig_pat_buf->bytes == 1) && ! gimp_drawable_is_gray (drawable)))
{
guchar *d1, *d2;
gint size;
if ((orig_pat_buf->bytes == 1) && gimp_drawable_is_rgb (drawable))
pat_buf = temp_buf_new (orig_pat_buf->width, orig_pat_buf->height,
3, 0, 0, NULL);
else
pat_buf = temp_buf_new (orig_pat_buf->width, orig_pat_buf->height,
1, 0, 0, NULL);
d1 = temp_buf_data (orig_pat_buf);
d2 = temp_buf_data (pat_buf);
size = orig_pat_buf->width * orig_pat_buf->height;
while (size--)
{
gimp_image_transform_color (gimage, drawable, d1, d2,
(orig_pat_buf->bytes == 3) ? RGB : GRAY);
d1 += orig_pat_buf->bytes;
d2 += pat_buf->bytes;
}
new_buf = TRUE;
}
else
{
pat_buf = orig_pat_buf;
}
}
gimp_drawable_mask_bounds (drawable, &x1, &y1, &x2, &y2);
bytes = gimp_drawable_bytes (drawable);
has_alpha = gimp_drawable_has_alpha (drawable);
/* Fill the region */
buf_tiles = tile_manager_new ((x2 - x1), (y2 - y1), bytes);
pixel_region_init (&bufPR, buf_tiles, 0, 0, (x2 - x1), (y2 - y1), TRUE);
bucket_fill_region (fill_mode, &bufPR, NULL,
color, pat_buf, x1, y1, has_alpha);
/* Apply it to the image */
pixel_region_init (&bufPR, buf_tiles, 0, 0, (x2 - x1), (y2 - y1), FALSE);
gimp_image_apply_image (gimage, drawable, &bufPR, TRUE,
gimp_context_get_opacity (context) * 255,
gimp_context_get_paint_mode (context),
NULL, x1, y1);
tile_manager_destroy (buf_tiles);
/* Update the displays */
gimp_drawable_update (drawable,
x1, y1,
(x2 - x1), (y2 - y1));
gdisplays_flush ();
if (new_buf)
temp_buf_free (pat_buf);
gimp_unset_busy (gimage->gimp);
}
void
gdisplay_drop_pattern (GtkWidget *widget,
GimpViewable *viewable,
gpointer data)
{
if (GIMP_IS_PATTERN (viewable))
{
gdisplay_bucket_fill (widget, PATTERN_BUCKET_FILL, NULL,
GIMP_PATTERN (viewable)->mask, data);
}
}
void
gdisplay_drop_color (GtkWidget *widget,
const GimpRGB *drop_color,
gpointer data)
{
guchar color[4];
gimp_rgba_get_uchar (drop_color,
&color[0],
&color[1],
&color[2],
&color[3]);
gdisplay_bucket_fill (widget, FG_BUCKET_FILL, color, NULL, data);
}
void
gdisplay_drop_buffer (GtkWidget *widget,
GimpViewable *viewable,
gpointer data)
{
GimpBuffer *buffer;
GDisplay *gdisp;
gdisp = (GDisplay *) data;
if (gdisp->gimage->gimp->busy)
return;
buffer = GIMP_BUFFER (viewable);
/* FIXME: popup a menu for selecting "Paste Into" */
gimp_edit_paste (gdisp->gimage,
gimp_image_active_drawable (gdisp->gimage),
buffer->tiles,
FALSE);
gdisplays_flush ();
}
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