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gimp/app/gimpdrawable-offset.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 <string.h>
#include <math.h>
#include "appenv.h"
#include "channel_ops.h"
#include "cursorutil.h"
#include "drawable.h"
#include "floating_sel.h"
#include "gdisplay.h"
#include "gimpcontext.h"
#include "gimpui.h"
#include "interface.h"
#include "libgimp/gimpsizeentry.h"
#include "libgimp/gimpintl.h"
#include "channel_pvt.h"
#include "layer_pvt.h"
#define ENTRY_WIDTH 60
typedef struct _OffsetDialog OffsetDialog;
struct _OffsetDialog
{
GtkWidget *dlg;
GtkWidget *off_se;
gboolean wrap_around;
GtkWidget *fill_options;
ChannelOffsetType fill_type;
GimpImage *gimage;
};
/* Forward declarations */
static void offset_ok_callback (GtkWidget *, gpointer);
static void offset_cancel_callback (GtkWidget *, gpointer);
static void offset_wraparound_update (GtkWidget *, gpointer);
static void offset_fill_type_update (GtkWidget *, gpointer);
static void offset_halfheight_callback (GtkWidget *, gpointer);
void
channel_ops_offset (GimpImage* gimage)
{
OffsetDialog *off_d;
GtkWidget *label;
GtkWidget *check;
GtkWidget *push;
GtkWidget *vbox;
GtkWidget *table;
GtkObject *adjustment;
GtkWidget *spinbutton;
GtkWidget *radio_box;
GtkWidget *radio_button;
GSList *group = NULL;
GimpDrawable *drawable;
drawable = gimage_active_drawable (gimage);
off_d = g_new (OffsetDialog, 1);
off_d->wrap_around = TRUE;
off_d->fill_type = drawable_has_alpha (drawable);
off_d->gimage = gimage;
off_d->dlg = gimp_dialog_new (_("Offset"), "offset",
gimp_standard_help_func,
"dialogs/offset.html",
GTK_WIN_POS_NONE,
FALSE, TRUE, FALSE,
_("OK"), offset_ok_callback,
off_d, NULL, TRUE, FALSE,
_("Cancel"), offset_cancel_callback,
off_d, NULL, FALSE, TRUE,
NULL);
/* The vbox for first column of options */
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (off_d->dlg)->vbox), vbox);
/* The table for the offsets */
table = gtk_table_new (3, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
/* The offset labels */
label = gtk_label_new (_("Offset X:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
gtk_widget_show (label);
label = gtk_label_new (_("Y:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
gtk_widget_show (label);
/* The offset sizeentry */
adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
gtk_spin_button_set_shadow_type (GTK_SPIN_BUTTON (spinbutton),
GTK_SHADOW_NONE);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_widget_set_usize (spinbutton, 75, 0);
off_d->off_se = gimp_size_entry_new (1, gimage->unit, "%a",
TRUE, TRUE, FALSE, 75,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (off_d->off_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_table_attach_defaults (GTK_TABLE (off_d->off_se), spinbutton,
1, 2, 0, 1);
gtk_widget_show (spinbutton);
gtk_table_attach (GTK_TABLE (table), off_d->off_se, 1, 2, 0, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (off_d->off_se);
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (off_d->off_se), UNIT_PIXEL);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (off_d->off_se), 0,
gimage->xresolution, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (off_d->off_se), 1,
gimage->yresolution, FALSE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (off_d->off_se), 0,
-gimage->width, gimage->width);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (off_d->off_se), 1,
-gimage->height, gimage->height);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (off_d->off_se), 0,
0, gimage->width);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (off_d->off_se), 1,
0, gimage->height);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (off_d->off_se), 0, 0);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (off_d->off_se), 1, 0);
gtk_widget_show (table);
/* The wrap around option */
check = gtk_check_button_new_with_label (_("Wrap-Around"));
gtk_box_pack_start (GTK_BOX (vbox), check, FALSE, FALSE, 0);
gtk_widget_show (check);
/* The fill options */
off_d->fill_options = gtk_frame_new (_("Fill Options"));
gtk_box_pack_start (GTK_BOX (vbox), off_d->fill_options, FALSE, FALSE, 0);
radio_box = gtk_vbox_new (FALSE, 1);
gtk_container_set_border_width (GTK_CONTAINER (radio_box), 2);
gtk_container_add (GTK_CONTAINER (off_d->fill_options), radio_box);
radio_button = gtk_radio_button_new_with_label (group, _("Background"));
group = gtk_radio_button_group (GTK_RADIO_BUTTON (radio_button));
gtk_box_pack_start (GTK_BOX (radio_box), radio_button, FALSE, FALSE, 0);
gtk_object_set_data (GTK_OBJECT (radio_button), "fill_type",
(gpointer) OFFSET_BACKGROUND);
gtk_signal_connect (GTK_OBJECT (radio_button), "toggled",
(GtkSignalFunc) offset_fill_type_update,
off_d);
gtk_widget_show (radio_button);
radio_button = gtk_radio_button_new_with_label (group, _("Transparent"));
group = gtk_radio_button_group (GTK_RADIO_BUTTON (radio_button));
gtk_box_pack_start (GTK_BOX (radio_box), radio_button, FALSE, FALSE, 0);
gtk_object_set_data (GTK_OBJECT (radio_button), "fill_type",
(gpointer) OFFSET_TRANSPARENT);
gtk_signal_connect (GTK_OBJECT (radio_button), "toggled",
(GtkSignalFunc) offset_fill_type_update,
off_d);
gtk_widget_show (radio_button);
if (drawable_has_alpha (drawable))
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (radio_button), TRUE);
else
gtk_widget_set_sensitive (radio_button, FALSE);
gtk_widget_show (radio_box);
gtk_widget_show (off_d->fill_options);
/* The by half height and half width option */
push = gtk_button_new_with_label (_("Offset by (x/2),(y/2)"));
gtk_container_set_border_width (GTK_CONTAINER (push), 2);
gtk_box_pack_start (GTK_BOX (vbox), push, FALSE, FALSE, 0);
gtk_widget_show (push);
/* Hook up the wrap around */
gtk_signal_connect (GTK_OBJECT (check), "toggled",
(GtkSignalFunc) offset_wraparound_update,
off_d);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), off_d->wrap_around);
/* Hook up the by half */
gtk_signal_connect (GTK_OBJECT (push), "clicked",
(GtkSignalFunc) offset_halfheight_callback,
off_d);
gtk_widget_show (vbox);
gtk_widget_show (off_d->dlg);
}
void
offset (GimpImage *gimage,
GimpDrawable *drawable,
gboolean wrap_around,
ChannelOffsetType fill_type,
gint offset_x,
gint offset_y)
{
PixelRegion srcPR, destPR;
TileManager *new_tiles;
int width, height;
int src_x, src_y;
int dest_x, dest_y;
unsigned char fill[MAX_CHANNELS] = { 0 };
if (!drawable)
return;
width = drawable_width (drawable);
height = drawable_height (drawable);
if (wrap_around)
{
offset_x %= width;
offset_y %= height;
}
else
{
offset_x = BOUNDS (offset_x, -width, width);
offset_y = BOUNDS (offset_y, -height, height);
}
if (offset_x == 0 && offset_y == 0)
return;
new_tiles = tile_manager_new (width, height, drawable_bytes (drawable));
if (offset_x >= 0)
{
src_x = 0;
dest_x = offset_x;
width = BOUNDS ((width - offset_x), 0, width);
}
else
{
src_x = -offset_x;
dest_x = 0;
width = BOUNDS ((width + offset_x), 0, width);
}
if (offset_y >= 0)
{
src_y = 0;
dest_y = offset_y;
height = BOUNDS ((height - offset_y), 0, height);
}
else
{
src_y = -offset_y;
dest_y = 0;
height = BOUNDS ((height + offset_y), 0, height);
}
/* Copy the center region */
if (width && height)
{
pixel_region_init (&srcPR, drawable_data (drawable), src_x, src_y, width, height, FALSE);
pixel_region_init (&destPR, new_tiles, dest_x, dest_y, width, height, TRUE);
copy_region (&srcPR, &destPR);
}
/* Copy appropriately for wrap around */
if (wrap_around == TRUE)
{
if (offset_x >= 0 && offset_y >= 0)
{
src_x = drawable_width (drawable) - offset_x;
src_y = drawable_height (drawable) - offset_y;
}
else if (offset_x >= 0 && offset_y < 0)
{
src_x = drawable_width (drawable) - offset_x;
src_y = 0;
}
else if (offset_x < 0 && offset_y >= 0)
{
src_x = 0;
src_y = drawable_height (drawable) - offset_y;
}
else if (offset_x < 0 && offset_y < 0)
{
src_x = 0;
src_y = 0;
}
dest_x = (src_x + offset_x) % drawable_width (drawable);
if (dest_x < 0)
dest_x = drawable_width (drawable) + dest_x;
dest_y = (src_y + offset_y) % drawable_height (drawable);
if (dest_y < 0)
dest_y = drawable_height (drawable) + dest_y;
/* intersecting region */
if (offset_x != 0 && offset_y != 0)
{
pixel_region_init (&srcPR, drawable_data (drawable), src_x, src_y,
ABS (offset_x), ABS (offset_y), FALSE);
pixel_region_init (&destPR, new_tiles, dest_x, dest_y, ABS (offset_x), ABS (offset_y), TRUE);
copy_region (&srcPR, &destPR);
}
/* X offset */
if (offset_x != 0)
{
if (offset_y >= 0)
{
pixel_region_init (&srcPR, drawable_data (drawable), src_x, 0,
ABS (offset_x), drawable_height (drawable) - ABS (offset_y), FALSE);
pixel_region_init (&destPR, new_tiles, dest_x, dest_y + offset_y,
ABS (offset_x), drawable_height (drawable) - ABS (offset_y), TRUE);
}
else if (offset_y < 0)
{
pixel_region_init (&srcPR, drawable_data (drawable), src_x, src_y - offset_y,
ABS (offset_x), drawable_height (drawable) - ABS (offset_y), FALSE);
pixel_region_init (&destPR, new_tiles, dest_x, 0,
ABS (offset_x), drawable_height (drawable) - ABS (offset_y), TRUE);
}
copy_region (&srcPR, &destPR);
}
/* X offset */
if (offset_y != 0)
{
if (offset_x >= 0)
{
pixel_region_init (&srcPR, drawable_data (drawable), 0, src_y,
drawable_width (drawable) - ABS (offset_x),
ABS (offset_y), FALSE);
pixel_region_init (&destPR, new_tiles, dest_x + offset_x, dest_y,
drawable_width (drawable) - ABS (offset_x),
ABS (offset_y), TRUE);
}
else if (offset_x < 0)
{
pixel_region_init (&srcPR, drawable_data (drawable),
src_x - offset_x, src_y,
drawable_width (drawable) - ABS (offset_x),
ABS (offset_y), FALSE);
pixel_region_init (&destPR, new_tiles, 0, dest_y,
drawable_width (drawable) - ABS (offset_x),
ABS (offset_y), TRUE);
}
copy_region (&srcPR, &destPR);
}
}
/* Otherwise, fill the vacated regions */
else
{
if (fill_type == OFFSET_BACKGROUND)
{
gimp_context_get_background (NULL, &fill[0], &fill[1], &fill[2]);
if (drawable_has_alpha (drawable))
fill[drawable_bytes (drawable) - 1] = OPAQUE_OPACITY;
}
if (offset_x >= 0 && offset_y >= 0)
{
dest_x = 0;
dest_y = 0;
}
else if (offset_x >= 0 && offset_y < 0)
{
dest_x = 0;
dest_y = drawable_height (drawable) + offset_y;
}
else if (offset_x < 0 && offset_y >= 0)
{
dest_x = drawable_width (drawable) + offset_x;
dest_y = 0;
}
else if (offset_x < 0 && offset_y < 0)
{
dest_x = drawable_width (drawable) + offset_x;
dest_y = drawable_height (drawable) + offset_y;
}
/* intersecting region */
if (offset_x != 0 && offset_y != 0)
{
pixel_region_init (&destPR, new_tiles, dest_x, dest_y,
ABS (offset_x), ABS (offset_y), TRUE);
color_region (&destPR, fill);
}
/* X offset */
if (offset_x != 0)
{
if (offset_y >= 0)
pixel_region_init (&destPR, new_tiles, dest_x, dest_y + offset_y,
ABS (offset_x), drawable_height (drawable) - ABS (offset_y), TRUE);
else if (offset_y < 0)
pixel_region_init (&destPR, new_tiles, dest_x, 0,
ABS (offset_x), drawable_height (drawable) - ABS (offset_y), TRUE);
color_region (&destPR, fill);
}
/* X offset */
if (offset_y != 0)
{
if (offset_x >= 0)
pixel_region_init (&destPR, new_tiles, dest_x + offset_x, dest_y,
drawable_width (drawable) - ABS (offset_x), ABS (offset_y), TRUE);
else if (offset_x < 0)
pixel_region_init (&destPR, new_tiles, 0, dest_y,
drawable_width (drawable) - ABS (offset_x), ABS (offset_y), TRUE);
color_region (&destPR, fill);
}
}
/* push an undo */
drawable_apply_image (drawable, 0, 0,
drawable_width (drawable), drawable_height (drawable),
drawable_data (drawable), FALSE);
/* swap the tiles */
drawable->tiles = new_tiles;
/* update the drawable */
drawable_update (drawable, 0, 0,
drawable_width (drawable), drawable_height (drawable));
}
/*
* Interface callbacks
*/
static void
offset_ok_callback (GtkWidget *widget,
gpointer data)
{
OffsetDialog *off_d;
GImage *gimage;
GimpDrawable *drawable;
gint offset_x;
gint offset_y;
off_d = (OffsetDialog *) data;
if ((gimage = off_d->gimage) != NULL)
{
drawable = gimage_active_drawable (gimage);
offset_x = (gint)
(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (off_d->off_se), 0) + 0.5);
offset_y = (gint)
(gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (off_d->off_se), 1) + 0.5);
offset (gimage, drawable, off_d->wrap_around, off_d->fill_type,
offset_x, offset_y);
gdisplays_flush ();
}
gtk_widget_destroy (off_d->dlg);
g_free (off_d);
}
static void
offset_cancel_callback (GtkWidget *widget,
gpointer data)
{
OffsetDialog *off_d;
off_d = (OffsetDialog *) data;
gtk_widget_destroy (off_d->dlg);
g_free (off_d);
}
static void
offset_wraparound_update (GtkWidget *widget,
gpointer data)
{
OffsetDialog *off_d;
off_d = (OffsetDialog *) data;
off_d->wrap_around = GTK_TOGGLE_BUTTON (widget)->active ? TRUE : FALSE;
gtk_widget_set_sensitive (off_d->fill_options, !off_d->wrap_around);
}
static void
offset_fill_type_update (GtkWidget *widget,
gpointer data)
{
OffsetDialog *off_d;
off_d = (OffsetDialog *) data;
if (GTK_TOGGLE_BUTTON (widget)->active)
off_d->fill_type =
(ChannelOffsetType) gtk_object_get_data (GTK_OBJECT (widget), "fill_type");
}
static void
offset_halfheight_callback (GtkWidget *widget,
gpointer data)
{
OffsetDialog *off_d;
GImage *gimage;
off_d = (OffsetDialog *) data;
gimage = off_d->gimage;
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (off_d->off_se),
0, gimage->width / 2);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (off_d->off_se),
1, gimage->height / 2);
}
GimpImage *
duplicate (GimpImage *gimage)
{
PixelRegion srcPR, destPR;
GimpImage *new_gimage;
Layer *layer, *new_layer;
Layer *floating_layer;
Channel *channel, *new_channel;
GSList *list;
GList *glist;
Guide *guide = NULL;
Layer *active_layer = NULL;
Channel *active_channel = NULL;
GimpDrawable *new_floating_sel_drawable = NULL;
GimpDrawable *floating_sel_drawable = NULL;
gint count;
gimp_add_busy_cursors_until_idle ();
/* Create a new image */
new_gimage = gimage_new (gimage->width, gimage->height, gimage->base_type);
gimage_disable_undo (new_gimage);
/* Copy resolution and unit information */
new_gimage->xresolution = gimage->xresolution;
new_gimage->yresolution = gimage->yresolution;
new_gimage->unit = gimage->unit;
/* Copy-on-write the projection tilemanager so we don't have
* to reproject the new gimage - since if we do the duplicate
* operation correctly, the projection for the new gimage is
* identical to that of the source.
*/
new_gimage->construct_flag = gimage->construct_flag;
new_gimage->proj_type = gimage->proj_type;
new_gimage->proj_bytes = gimage->proj_bytes;
new_gimage->proj_level = gimage->proj_level;
pixel_region_init (&srcPR, gimp_image_projection (gimage), 0, 0,
gimage->width, gimage->height, FALSE);
pixel_region_init (&destPR, gimp_image_projection (new_gimage), 0, 0,
new_gimage->width, new_gimage->height, TRUE);
/* We don't want to copy a half-redrawn projection, so force a flush. */
gdisplays_finish_draw();
copy_region(&srcPR, &destPR);
/* Copy floating layer */
floating_layer = gimage_floating_sel (gimage);
if (floating_layer)
{
floating_sel_relax (floating_layer, FALSE);
floating_sel_drawable = floating_layer->fs.drawable;
floating_layer = NULL;
}
/* Copy the layers */
list = gimage->layers;
count = 0;
layer = NULL;
while (list)
{
layer = (Layer *) list->data;
list = g_slist_next (list);
new_layer = layer_copy (layer, FALSE);
gimp_drawable_set_gimage(GIMP_DRAWABLE(new_layer), new_gimage);
/* Make sure the copied layer doesn't say: "<old layer> copy" */
layer_set_name(GIMP_LAYER(new_layer),
layer_get_name(GIMP_LAYER(layer)));
/* Make sure if the layer has a layer mask, it's name isn't screwed up */
if (new_layer->mask)
{
gimp_drawable_set_name(GIMP_DRAWABLE(new_layer->mask),
gimp_drawable_get_name(GIMP_DRAWABLE(layer->mask)));
}
if (gimage->active_layer == layer)
active_layer = new_layer;
if (gimage->floating_sel == layer)
floating_layer = new_layer;
if (floating_sel_drawable == GIMP_DRAWABLE(layer))
new_floating_sel_drawable = GIMP_DRAWABLE(new_layer);
/* Add the layer */
if (floating_layer != new_layer)
gimage_add_layer (new_gimage, new_layer, count++);
}
/* Copy the channels */
list = gimage->channels;
count = 0;
while (list)
{
channel = (Channel *) list->data;
list = g_slist_next (list);
new_channel = channel_copy (channel);
gimp_drawable_set_gimage(GIMP_DRAWABLE(new_channel), new_gimage);
/* Make sure the copied channel doesn't say: "<old channel> copy" */
gimp_drawable_set_name(GIMP_DRAWABLE(new_channel),
gimp_drawable_get_name(GIMP_DRAWABLE(channel)));
if (gimage->active_channel == channel)
active_channel = (new_channel);
if (floating_sel_drawable == GIMP_DRAWABLE(channel))
new_floating_sel_drawable = GIMP_DRAWABLE(new_channel);
/* Add the channel */
gimage_add_channel (new_gimage, new_channel, count++);
}
/* Copy the selection mask */
pixel_region_init (&srcPR, drawable_data (GIMP_DRAWABLE(gimage->selection_mask)), 0, 0, gimage->width, gimage->height, FALSE);
pixel_region_init (&destPR, drawable_data (GIMP_DRAWABLE(new_gimage->selection_mask)), 0, 0, gimage->width, gimage->height, TRUE);
copy_region (&srcPR, &destPR);
new_gimage->selection_mask->bounds_known = FALSE;
new_gimage->selection_mask->boundary_known = FALSE;
/* Set active layer, active channel */
new_gimage->active_layer = active_layer;
new_gimage->active_channel = active_channel;
if (floating_layer)
floating_sel_attach (floating_layer, new_floating_sel_drawable);
/* Copy the colormap if necessary */
if (new_gimage->base_type == INDEXED)
memcpy (new_gimage->cmap, gimage->cmap, gimage->num_cols * 3);
new_gimage->num_cols = gimage->num_cols;
/* copy state of all color channels */
for (count = 0; count < MAX_CHANNELS; count++)
{
new_gimage->visible[count] = gimage->visible[count];
new_gimage->active[count] = gimage->active[count];
}
/* Copy any Guides */
glist = gimage->guides;
while (glist)
{
Guide* new_guide;
guide = (Guide*) glist->data;
glist = g_list_next (glist);
switch (guide->orientation)
{
case ORIENTATION_HORIZONTAL:
new_guide = gimp_image_add_hguide(new_gimage);
new_guide->position = guide->position;
break;
case ORIENTATION_VERTICAL:
new_guide = gimp_image_add_vguide(new_gimage);
new_guide->position = guide->position;
break;
default:
g_error("Unknown guide orientation.\n");
}
}
/* Copy the qmask info */
new_gimage->qmask_state = gimage->qmask_state;
for (count=0;count<3;count++)
new_gimage->qmask_color[count] = gimage->qmask_color[count];
new_gimage->qmask_opacity = gimage->qmask_opacity;
gimage_enable_undo (new_gimage);
return new_gimage;
}
void
channel_ops_duplicate (GimpImage *gimage)
{
gdisplay_new (duplicate (gimage), 0x0101);
}
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