mirror of https://github.com/GNOME/gimp.git
162 lines
5.3 KiB
C
162 lines
5.3 KiB
C
/* gap_layer_copy.c
|
|
* by hof (Wolfgang Hofer)
|
|
*
|
|
*/
|
|
/* 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.
|
|
*/
|
|
|
|
/* revision history:
|
|
* version 0.99.00 1999.03.03 hof: use the regular gimp_layer_copy and gimp_channel_copy
|
|
* (removed private variant)
|
|
* version 0.98.00 1998.11.26 hof: added channel copy
|
|
* version 1998.11.26 hof: bugfix have to copy the layer's layer_mask too.
|
|
* type check of destination image
|
|
* version 0.96.00 hof: bugfix memory leak (must set src_tile to unref after use)
|
|
* version 0.93.01 hof: when creating the destination layer
|
|
* add alpha channel if needed in extra call
|
|
* version 0.90.00; hof: 1.st (pre) release
|
|
*/
|
|
|
|
/* SYTEM (UNIX) includes */
|
|
/* GIMP includes */
|
|
/* GAP includes */
|
|
#include "gap_layer_copy.h"
|
|
#include "gap_pdb_calls.h"
|
|
|
|
extern int gap_debug; /* ==0 ... dont print debug infos */
|
|
|
|
/* ============================================================================
|
|
* p_my_layer_copy
|
|
* copy src_layer to the dst_image,
|
|
* return the id of the new created layer (the copy)
|
|
* NOTE: source layer MUST have same type (bpp) for now
|
|
* it would be fine to extend the code to convert between any type
|
|
* ============================================================================
|
|
*/
|
|
gint32 p_my_layer_copy (gint32 dst_image_id,
|
|
gint32 src_layer_id,
|
|
gdouble opacity, /* 0.0 upto 100.0 */
|
|
GimpLayerModeEffects mode,
|
|
gint *src_offset_x,
|
|
gint *src_offset_y )
|
|
{
|
|
gint32 l_new_layer_id;
|
|
gint32 l_ret_id;
|
|
char *l_name;
|
|
GimpImageType l_src_type;
|
|
|
|
if(gap_debug) printf("GAP p_my_layer_copy: START\n");
|
|
|
|
l_ret_id = -1; /* prepare error retcode -1 */
|
|
l_name = NULL;
|
|
|
|
if(opacity > 99.99) opacity = 100.0;
|
|
if(opacity < 0.0) opacity = 0.0;
|
|
|
|
l_name = gimp_layer_get_name(src_layer_id);
|
|
l_src_type = gimp_drawable_type(src_layer_id);
|
|
|
|
switch(l_src_type)
|
|
{
|
|
case GIMP_RGB_IMAGE: /* 0 */
|
|
case GIMP_RGBA_IMAGE: /* 1 */
|
|
if(gimp_image_base_type(dst_image_id) != GIMP_RGB) { return -1; }
|
|
break;
|
|
case GIMP_GRAY_IMAGE: /* 2 */
|
|
case GIMP_GRAYA_IMAGE: /* 3 */
|
|
if(gimp_image_base_type(dst_image_id) != GIMP_GRAY) { return -1; }
|
|
break;
|
|
case GIMP_INDEXED_IMAGE: /* 4 */
|
|
case GIMP_INDEXEDA_IMAGE: /* 5 */
|
|
if(gimp_image_base_type(dst_image_id) != GIMP_INDEXED) { return -1; }
|
|
break;
|
|
}
|
|
|
|
|
|
/* copy the layer */
|
|
l_new_layer_id = gimp_layer_copy(src_layer_id);
|
|
|
|
if(l_new_layer_id >= 0)
|
|
{
|
|
if(p_gimp_drawable_set_image(l_new_layer_id, dst_image_id) >= 0)
|
|
{
|
|
if(! gimp_drawable_has_alpha(l_new_layer_id))
|
|
{
|
|
/* have to add alpha channel */
|
|
gimp_layer_add_alpha(l_new_layer_id);
|
|
}
|
|
|
|
/* findout the offsets of the original layer within the source Image */
|
|
gimp_drawable_offsets(src_layer_id, src_offset_x, src_offset_y );
|
|
|
|
gimp_layer_set_name(l_new_layer_id, l_name);
|
|
gimp_layer_set_opacity(l_new_layer_id, opacity);
|
|
gimp_layer_set_mode(l_new_layer_id, mode);
|
|
|
|
|
|
l_ret_id = l_new_layer_id; /* all done OK */
|
|
}
|
|
|
|
}
|
|
|
|
if(l_name != NULL) { g_free (l_name); }
|
|
|
|
if(gap_debug) printf("GAP p_my_layer_copy: ret %d\n", (int)l_ret_id);
|
|
|
|
return l_ret_id;
|
|
} /* end p_my_layer_copy */
|
|
|
|
|
|
/* ============================================================================
|
|
* p_my_channel_copy
|
|
* copy a channel to dst_IMAGE
|
|
* ============================================================================
|
|
*/
|
|
gint32 p_my_channel_copy (gint32 dst_image_id,
|
|
gint32 src_channel_id)
|
|
{
|
|
gint32 l_new_channel_id;
|
|
gint32 l_ret_id;
|
|
char *l_name;
|
|
|
|
if(gap_debug) printf("GAP :p_my_channel_copy START\n");
|
|
|
|
l_ret_id = -1; /* prepare error retcode -1 */
|
|
l_name = NULL;
|
|
|
|
/* create new channel in destination image */
|
|
l_name = gimp_channel_get_name(src_channel_id);
|
|
|
|
/* copy the channel */
|
|
l_new_channel_id = gimp_channel_copy(src_channel_id);
|
|
if(l_new_channel_id >= 0)
|
|
{
|
|
if(p_gimp_drawable_set_image(l_new_channel_id, dst_image_id) >= 0)
|
|
{
|
|
gimp_channel_set_name(l_new_channel_id, l_name);
|
|
l_ret_id = l_new_channel_id; /* all done OK */
|
|
}
|
|
}
|
|
|
|
if(l_name != NULL) { g_free (l_name); }
|
|
|
|
if(gap_debug) printf("GAP :p_my_channel_copy id=%d\n", (int)l_ret_id);
|
|
|
|
return l_ret_id;
|
|
} /* end p_my_channel_copy */
|