static gint32
create_image (GdkPixbuf *pixbuf,
GdkRegion *shape,
const gchar *name)
{
gint32 image;
gint32 layer;
gdouble xres, yres;
gchar *comment;
gint width, height;
gboolean status;
status = gimp_progress_init (_("Importing screenshot"));
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
image = gimp_image_new (width, height, GIMP_RGB);
gimp_image_undo_disable (image);
gimp_get_monitor_resolution (&xres, &yres);
gimp_image_set_resolution (image, xres, yres);
comment = gimp_get_default_comment ();
if (comment)
{
GimpParasite *parasite;
parasite = gimp_parasite_new ("gimp-comment", GIMP_PARASITE_PERSISTENT,
strlen (comment) + 1, comment);
gimp_image_parasite_attach (image, parasite);
gimp_parasite_free (parasite);
g_free (comment);
}
layer = gimp_layer_new_from_pixbuf (image,
name ? name : _("Screenshot"),
pixbuf,
100, GIMP_NORMAL_MODE, 0.0, 1.0);
gimp_image_add_layer (image, layer, 0);
if (shape && ! gdk_region_empty (shape))
{
image_select_shape (image, shape);
if (! gimp_selection_is_empty (image))
{
gimp_layer_add_alpha (layer);
gimp_edit_clear (layer);
gimp_selection_none (image);
}
}
gimp_image_undo_enable (image);
return image;
}
static void
export_add_alpha (gint32 image_ID,
gint32 *drawable_ID)
{
gint32 nlayers;
gint32 i;
gint32 *layers;
layers = gimp_image_get_layers (image_ID, &nlayers);
for (i = 0; i < nlayers; i++)
{
if (!gimp_drawable_has_alpha (layers[i]))
gimp_layer_add_alpha (layers[i]);
}
g_free (layers);
}
void bimp_apply_drawable_manipulations(image_output imageout, gchar* orig_filename, gchar* orig_basename)
{
imageout->image_id = gimp_file_load(GIMP_RUN_NONINTERACTIVE, orig_filename, orig_basename); /* load file and get image id */
/* LOAD ERROR CHECK HERE */
g_print("Image ID is %d\n", imageout->image_id);
imageout->drawable_id = gimp_image_merge_visible_layers(imageout->image_id, GIMP_CLIP_TO_IMAGE); /* merge levels and get drawable id */
gimp_layer_add_alpha (imageout->drawable_id);
g_print("Drawable ID is %d\n", imageout->drawable_id);
/* apply all the intermediate manipulations */
g_slist_foreach(bimp_selected_manipulations, (GFunc)apply_manipulation, imageout);
/* watermark at last */
if(list_contains_watermark) {
g_print("Applying WATERMARK...\n");
apply_watermark((watermark_settings)(bimp_list_get_manip(MANIP_WATERMARK))->settings, imageout);
}
}
void
file_import_image (GimpImage *image,
GimpContext *context,
GFile *file,
gboolean interactive,
GimpProgress *progress)
{
GimpCoreConfig *config;
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (GIMP_IS_CONTEXT (context));
g_return_if_fail (G_IS_FILE (file));
g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
config = image->gimp->config;
if (interactive && gimp_image_get_base_type (image) != GIMP_INDEXED)
{
if (config->import_promote_float)
{
GimpPrecision old_precision = gimp_image_get_precision (image);
if (old_precision != GIMP_PRECISION_FLOAT_LINEAR)
{
gimp_image_convert_precision (image,
GIMP_PRECISION_FLOAT_LINEAR,
GEGL_DITHER_NONE,
GEGL_DITHER_NONE,
GEGL_DITHER_NONE,
progress);
if (config->import_promote_dither &&
old_precision == GIMP_PRECISION_U8_NON_LINEAR)
{
gimp_image_convert_dither_u8 (image, progress);
}
}
}
if (config->import_add_alpha)
{
GList *layers = gimp_image_get_layer_list (image);
GList *list;
for (list = layers; list; list = g_list_next (list))
{
if (! gimp_viewable_get_children (list->data) &&
! gimp_item_is_text_layer (list->data) &&
! gimp_drawable_has_alpha (list->data))
{
gimp_layer_add_alpha (list->data);
}
}
g_list_free (layers);
}
}
gimp_image_import_color_profile (image, context, progress, interactive);
/* Remember the import source */
gimp_image_set_imported_file (image, file);
/* We shall treat this file as an Untitled file */
gimp_image_set_file (image, NULL);
}
/* Decompose an image. It returns the number of new (gray) images.
The image IDs for the new images are returned in image_ID_dst.
On failure, -1 is returned.
*/
static gint32
decompose (gint32 image_ID,
gint32 drawable_ID,
const gchar *extract_type,
gint32 *image_ID_dst,
gint32 *nlayers,
gint32 *layer_ID_dst)
{
const gchar *layername;
gint i, j, extract_idx, scan_lines;
gint height, width, tile_height, num_layers;
gchar *filename;
guchar *src;
guchar *dst[MAX_EXTRACT_IMAGES];
GimpDrawable *drawable_src;
GimpDrawable *drawable_dst[MAX_EXTRACT_IMAGES];
GimpPixelRgn pixel_rgn_src;
GimpPixelRgn pixel_rgn_dst[MAX_EXTRACT_IMAGES];
extract_idx = -1; /* Search extract type */
for (j = 0; j < G_N_ELEMENTS (extract); j++)
{
if (g_ascii_strcasecmp (extract_type, extract[j].type) == 0)
{
extract_idx = j;
break;
}
}
if (extract_idx < 0)
return -1;
/* Check structure of source image */
drawable_src = gimp_drawable_get (drawable_ID);
if (drawable_src->bpp < 3)
{
g_message ("Not an RGB image.");
return -1;
}
if ((extract[extract_idx].extract_fun == extract_alpha ||
extract[extract_idx].extract_fun == extract_rgba) &&
(!gimp_drawable_has_alpha (drawable_ID)))
{
g_message ("No alpha channel available.");
return -1;
}
width = drawable_src->width;
height = drawable_src->height;
tile_height = gimp_tile_height ();
gimp_pixel_rgn_init (&pixel_rgn_src, drawable_src, 0, 0, width, height,
FALSE, FALSE);
/* allocate a buffer for retrieving information from the src pixel region */
src = g_new (guchar, tile_height * width * drawable_src->bpp);
/* Create all new gray images */
num_layers = extract[extract_idx].num_images;
if (num_layers > MAX_EXTRACT_IMAGES)
num_layers = MAX_EXTRACT_IMAGES;
for (j = 0; j < num_layers; j++)
{
/* Build a filename like <imagename>-<channel>.<extension> */
gchar *fname;
gchar *extension;
gdouble xres, yres;
fname = gimp_image_get_filename (image_ID);
if (fname)
{
extension = fname + strlen (fname) - 1;
while (extension >= fname)
{
if (*extension == '.') break;
extension--;
}
if (extension >= fname)
{
*(extension++) = '\0';
if (decovals.as_layers)
filename = g_strdup_printf ("%s-%s.%s", fname,
gettext (extract[extract_idx].type),
extension);
else
filename = g_strdup_printf ("%s-%s.%s", fname,
gettext (extract[extract_idx].channel_name[j]),
extension);
}
else
{
if (decovals.as_layers)
filename = g_strdup_printf ("%s-%s", fname,
gettext (extract[extract_idx].type));
else
filename = g_strdup_printf ("%s-%s", fname,
gettext (extract[extract_idx].channel_name[j]));
}
}
else
{
filename = g_strdup (gettext (extract[extract_idx].channel_name[j]));
}
gimp_image_get_resolution (image_ID, &xres, &yres);
if (decovals.as_layers)
{
layername = gettext (extract[extract_idx].channel_name[j]);
if (j == 0)
image_ID_dst[j] = create_new_image (filename, layername,
width, height, GIMP_GRAY,
xres, yres,
layer_ID_dst + j,
drawable_dst + j,
pixel_rgn_dst + j);
else
layer_ID_dst[j] = create_new_layer (image_ID_dst[0], j, layername,
width, height, GIMP_GRAY,
drawable_dst + j,
pixel_rgn_dst + j);
}
else
{
image_ID_dst[j] = create_new_image (filename, NULL,
width, height, GIMP_GRAY,
xres, yres,
layer_ID_dst + j,
drawable_dst + j,
pixel_rgn_dst + j);
}
g_free (filename);
g_free (fname);
dst[j] = g_new (guchar, tile_height * width);
}
i = 0;
while (i < height)
{
/* Get source pixel region */
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i);
gimp_pixel_rgn_get_rect (&pixel_rgn_src, src, 0, i, width, scan_lines);
/* Extract the channel information */
extract[extract_idx].extract_fun (src, drawable_src->bpp, scan_lines*width,
dst);
/* Transfer the registration color */
if (decovals.use_registration)
transfer_registration_color (src, drawable_src->bpp, scan_lines*width,
dst, extract[extract_idx].num_images);
/* Set destination pixel regions */
for (j = 0; j < num_layers; j++)
gimp_pixel_rgn_set_rect (&(pixel_rgn_dst[j]), dst[j], 0, i, width,
scan_lines);
i += scan_lines;
gimp_progress_update ((gdouble) i / (gdouble) height);
}
g_free (src);
for (j = 0; j < num_layers; j++)
{
gimp_drawable_detach (drawable_dst[j]);
gimp_drawable_update (layer_ID_dst[j], 0, 0,
gimp_drawable_width (layer_ID_dst[j]),
gimp_drawable_height (layer_ID_dst[j]));
gimp_layer_add_alpha (layer_ID_dst[j]);
g_free (dst[j]);
}
gimp_drawable_detach (drawable_src);
*nlayers = num_layers;
return (decovals.as_layers ? 1 : num_layers);
}
gint
xjpg_load_layer_alpha (const char *filename,
gint32 image_id,
gint32 layer_id)
{
GimpPixelRgn l_pixel_rgn;
GimpDrawable *l_drawable;
struct jpeg_decompress_struct cinfo;
struct my_error_mgr jerr;
FILE *infile;
guchar *l_buf;
guchar *l_dstbuf;
guchar **l_rowbuf;
int l_tile_height;
int l_scanlines;
int l_idx, l_start, l_end;
int l_alpha_offset;
guchar *l_buf_ptr;
guchar *l_dstbuf_ptr;
/* We set up the normal JPEG error routines. */
cinfo.err = jpeg_std_error (&jerr.pub);
jerr.pub.error_exit = my_error_exit;
/* add alpha channel */
gimp_layer_add_alpha (layer_id);
if ((infile = g_fopen (filename, "rb")) == NULL)
{
/* No alpha found, thats OK, use full opaque alpha channel
* (there is no need not store alpha channels on full opaque channels)
* (fixme: if filename exists but is not readable
* we should return -1 to indicate an error
*/
return 0; /* OK */
}
/* Establish the setjmp return context for my_error_exit to use. */
if (setjmp (jerr.setjmp_buffer))
{
/* If we get here, the JPEG code has signaled an error.
* We need to clean up the JPEG object, close the input file, and return.
*/
jpeg_destroy_decompress (&cinfo);
if (infile)
fclose (infile);
g_printerr ("XJT: JPEG alpha load error\n");
return -1;
}
/* Now we can initialize the JPEG decompression object. */
jpeg_create_decompress (&cinfo);
/* Step 2: specify data source (eg, a file) */
jpeg_stdio_src (&cinfo, infile);
/* Step 3: read file parameters with jpeg_read_header() */
(void) jpeg_read_header (&cinfo, TRUE);
/* We can ignore the return value from jpeg_read_header since
* (a) suspension is not possible with the stdio data source, and
* (b) we passed TRUE to reject a tables-only JPEG file as an error.
* See libjpeg.doc for more info.
*/
/* Step 4: set parameters for decompression */
/* In this example, we don't need to change any of the defaults set by
* jpeg_read_header(), so we do nothing here.
*/
/* Step 5: Start decompressor */
jpeg_start_decompress (&cinfo);
/* We may need to do some setup of our own at this point before reading
* the data. After jpeg_start_decompress() we have the correct scaled
* output image dimensions available, as well as the output colormap
* if we asked for color quantization.
* In this example, we need to make an output work buffer of the right size.
*/
/* temporary buffer (for read in jpeg lines) */
l_tile_height = gimp_tile_height ();
l_buf = g_new (guchar, l_tile_height * cinfo.output_width * cinfo.output_components);
l_rowbuf = g_new (guchar*, l_tile_height);
for (l_idx = 0; l_idx < l_tile_height; l_idx++)
{
l_rowbuf[l_idx] = l_buf + cinfo.output_width * cinfo.output_components * l_idx;
}
l_drawable = gimp_drawable_get (layer_id);
if(l_drawable == NULL)
{
g_printerr ("XJT: gimp_drawable_get failed on layer id %d\n", (int)layer_id);
fclose(infile);
return -1;
}
/* Check if jpeg file can be used as alpha channel
*/
if((cinfo.output_components != 1) ||
(cinfo.output_width != l_drawable->width) ||
(cinfo.output_height != l_drawable->height))
{
g_printerr ("XJT: cant load %s as alpha channel\n", filename);
fclose (infile);
return -1;
}
/* buffer to read in the layer and merge with the alpha from jpeg file */
l_dstbuf = g_new (guchar, l_tile_height * l_drawable->width * l_drawable->bpp);
gimp_pixel_rgn_init (&l_pixel_rgn, l_drawable, 0, 0, l_drawable->width, l_drawable->height, TRUE, FALSE);
l_alpha_offset = l_drawable->bpp -1;
/* Step 6: while (scan lines remain to be read) */
/* jpeg_read_scanlines(...); */
/* Here we use the library's state variable cinfo.output_scanline as the
* loop counter, so that we don't have to keep track ourselves.
*/
while (cinfo.output_scanline < cinfo.output_height)
{
l_start = cinfo.output_scanline;
l_end = cinfo.output_scanline + l_tile_height;
l_end = MIN (l_end, cinfo.output_height);
l_scanlines = l_end - l_start;
for (l_idx = 0; l_idx < l_scanlines; l_idx++)
{
jpeg_read_scanlines (&cinfo, (JSAMPARRAY) &l_rowbuf[l_idx], 1);
}
gimp_pixel_rgn_get_rect (&l_pixel_rgn, l_dstbuf, 0, l_start, l_drawable->width, l_scanlines);
/* copy the loaded jpeg data (from buf) to the layers alpha channel data */
l_idx = l_tile_height * l_drawable->width;
l_buf_ptr = l_buf;
l_dstbuf_ptr = l_dstbuf;
while(l_idx--)
{
l_dstbuf_ptr += l_alpha_offset;
*l_dstbuf_ptr++ = *l_buf_ptr++;
}
gimp_pixel_rgn_set_rect (&l_pixel_rgn, l_dstbuf, 0, l_start, l_drawable->width, l_scanlines);
gimp_progress_update ((double) cinfo.output_scanline / (double) cinfo.output_height);
}
gimp_progress_update (1.0);
/* Step 7: Finish decompression */
jpeg_finish_decompress (&cinfo);
/* We can ignore the return value since suspension is not possible
* with the stdio data source.
*/
/* Step 8: Release JPEG decompression object */
/* This is an important step since it will release a good deal of memory. */
jpeg_destroy_decompress (&cinfo);
/* free up the temporary buffers */
g_free (l_rowbuf);
g_free (l_buf);
g_free (l_dstbuf);
/* After finish_decompress, we can close the input file.
* Here we postpone it until after no more JPEG errors are possible,
* so as to simplify the setjmp error logic above. (Actually, I don't
* think that jpeg_destroy can do an error exit, but why assume anything...)
*/
fclose (infile);
/* At this point you may want to check to see whether any corrupt-data
* warnings occurred (test whether jerr.num_warnings is nonzero).
*/
return (0); /* OK */
} /* xjpg_load_layer_alpha */
static GimpLayer *
gimp_image_merge_layers (GimpImage *image,
GSList *merge_list,
GimpContext *context,
GimpMergeType merge_type,
const gchar *undo_desc)
{
GList *list;
GSList *reverse_list = NULL;
PixelRegion src1PR, src2PR, maskPR;
PixelRegion *mask;
GimpLayer *merge_layer;
GimpLayer *layer;
GimpLayer *bottom_layer;
GimpImageType type;
gint count;
gint x1, y1, x2, y2;
gint x3, y3, x4, y4;
CombinationMode operation;
gint position;
gboolean active[MAX_CHANNELS] = { TRUE, TRUE, TRUE, TRUE };
gint off_x, off_y;
gchar *name;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
layer = NULL;
type = GIMP_RGBA_IMAGE;
x1 = y1 = 0;
x2 = y2 = 0;
bottom_layer = NULL;
/* Get the layer extents */
count = 0;
while (merge_list)
{
layer = merge_list->data;
gimp_item_offsets (GIMP_ITEM (layer), &off_x, &off_y);
switch (merge_type)
{
case GIMP_EXPAND_AS_NECESSARY:
case GIMP_CLIP_TO_IMAGE:
if (! count)
{
x1 = off_x;
y1 = off_y;
x2 = off_x + gimp_item_width (GIMP_ITEM (layer));
y2 = off_y + gimp_item_height (GIMP_ITEM (layer));
}
else
{
if (off_x < x1)
x1 = off_x;
if (off_y < y1)
y1 = off_y;
if ((off_x + gimp_item_width (GIMP_ITEM (layer))) > x2)
x2 = (off_x + gimp_item_width (GIMP_ITEM (layer)));
if ((off_y + gimp_item_height (GIMP_ITEM (layer))) > y2)
y2 = (off_y + gimp_item_height (GIMP_ITEM (layer)));
}
if (merge_type == GIMP_CLIP_TO_IMAGE)
{
x1 = CLAMP (x1, 0, gimp_image_get_width (image));
y1 = CLAMP (y1, 0, gimp_image_get_height (image));
x2 = CLAMP (x2, 0, gimp_image_get_width (image));
y2 = CLAMP (y2, 0, gimp_image_get_height (image));
}
break;
case GIMP_CLIP_TO_BOTTOM_LAYER:
if (merge_list->next == NULL)
{
x1 = off_x;
y1 = off_y;
x2 = off_x + gimp_item_width (GIMP_ITEM (layer));
y2 = off_y + gimp_item_height (GIMP_ITEM (layer));
}
break;
case GIMP_FLATTEN_IMAGE:
if (merge_list->next == NULL)
{
x1 = 0;
y1 = 0;
x2 = gimp_image_get_width (image);
y2 = gimp_image_get_height (image);
}
break;
}
count ++;
reverse_list = g_slist_prepend (reverse_list, layer);
merge_list = g_slist_next (merge_list);
}
if ((x2 - x1) == 0 || (y2 - y1) == 0)
return NULL;
/* Start a merge undo group. */
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_LAYERS_MERGE,
undo_desc);
name = g_strdup (gimp_object_get_name (GIMP_OBJECT (layer)));
if (merge_type == GIMP_FLATTEN_IMAGE ||
gimp_drawable_type (GIMP_DRAWABLE (layer)) == GIMP_INDEXED_IMAGE)
{
guchar bg[4] = { 0, 0, 0, 0 };
type = GIMP_IMAGE_TYPE_FROM_BASE_TYPE (gimp_image_base_type (image));
merge_layer = gimp_layer_new (image, (x2 - x1), (y2 - y1),
type,
gimp_object_get_name (GIMP_OBJECT (layer)),
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE);
if (! merge_layer)
{
g_warning ("%s: could not allocate merge layer.", G_STRFUNC);
return NULL;
}
GIMP_ITEM (merge_layer)->offset_x = x1;
GIMP_ITEM (merge_layer)->offset_y = y1;
/* get the background for compositing */
gimp_image_get_background (image, context,
gimp_drawable_type (GIMP_DRAWABLE (merge_layer)),
bg);
/* init the pixel region */
pixel_region_init (&src1PR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (merge_layer)),
0, 0, (x2 - x1), (y2 - y1),
TRUE);
/* set the region to the background color */
color_region (&src1PR, bg);
position = 0;
}
else
{
/* The final merged layer inherits the name of the bottom most layer
* and the resulting layer has an alpha channel whether or not the
* original did. Opacity is set to 100% and the MODE is set to normal.
*/
merge_layer =
gimp_layer_new (image, (x2 - x1), (y2 - y1),
gimp_drawable_type_with_alpha (GIMP_DRAWABLE (layer)),
"merged layer",
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE);
if (!merge_layer)
{
g_warning ("%s: could not allocate merge layer", G_STRFUNC);
return NULL;
}
GIMP_ITEM (merge_layer)->offset_x = x1;
GIMP_ITEM (merge_layer)->offset_y = y1;
/* clear the layer */
pixel_region_init (&src1PR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (merge_layer)),
0, 0,
(x2 - x1), (y2 - y1),
TRUE);
clear_region (&src1PR);
/* Find the index in the layer list of the bottom layer--we need this
* in order to add the final, merged layer to the layer list correctly
*/
layer = reverse_list->data;
position =
gimp_container_num_children (image->layers) -
gimp_container_get_child_index (image->layers, GIMP_OBJECT (layer));
}
bottom_layer = layer;
/* Copy the tattoo and parasites of the bottom layer to the new layer */
gimp_item_set_tattoo (GIMP_ITEM (merge_layer),
gimp_item_get_tattoo (GIMP_ITEM (bottom_layer)));
g_object_unref (GIMP_ITEM (merge_layer)->parasites);
GIMP_ITEM (merge_layer)->parasites =
gimp_parasite_list_copy (GIMP_ITEM (bottom_layer)->parasites);
while (reverse_list)
{
GimpLayerModeEffects mode;
layer = reverse_list->data;
/* determine what sort of operation is being attempted and
* if it's actually legal...
*/
operation = gimp_image_merge_layers_get_operation (merge_layer, layer);
if (operation == -1)
{
gimp_layer_add_alpha (layer);
/* try again ... */
operation = gimp_image_merge_layers_get_operation (merge_layer,
layer);
}
if (operation == -1)
{
g_warning ("%s: attempting to merge incompatible layers.", G_STRFUNC);
return NULL;
}
gimp_item_offsets (GIMP_ITEM (layer), &off_x, &off_y);
x3 = CLAMP (off_x, x1, x2);
y3 = CLAMP (off_y, y1, y2);
x4 = CLAMP (off_x + gimp_item_width (GIMP_ITEM (layer)), x1, x2);
y4 = CLAMP (off_y + gimp_item_height (GIMP_ITEM (layer)), y1, y2);
/* configure the pixel regions */
pixel_region_init (&src1PR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (merge_layer)),
(x3 - x1), (y3 - y1), (x4 - x3), (y4 - y3),
TRUE);
pixel_region_init (&src2PR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (layer)),
(x3 - off_x), (y3 - off_y),
(x4 - x3), (y4 - y3),
FALSE);
if (gimp_layer_get_mask (layer) &&
gimp_layer_mask_get_apply (layer->mask))
{
TileManager *tiles;
tiles = gimp_drawable_get_tiles (GIMP_DRAWABLE (layer->mask));
pixel_region_init (&maskPR, tiles,
(x3 - off_x), (y3 - off_y), (x4 - x3), (y4 - y3),
FALSE);
mask = &maskPR;
}
else
{
mask = NULL;
}
/* DISSOLVE_MODE is special since it is the only mode that does not
* work on the projection with the lower layer, but only locally on
* the layers alpha channel.
*/
mode = gimp_layer_get_mode (layer);
if (layer == bottom_layer && mode != GIMP_DISSOLVE_MODE)
mode = GIMP_NORMAL_MODE;
combine_regions (&src1PR, &src2PR, &src1PR, mask, NULL,
gimp_layer_get_opacity (layer) * 255.999,
mode,
active,
operation);
gimp_image_remove_layer (image, layer);
reverse_list = g_slist_next (reverse_list);
}
g_slist_free (reverse_list);
/* if the type is flatten, remove all the remaining layers */
if (merge_type == GIMP_FLATTEN_IMAGE)
{
list = GIMP_LIST (image->layers)->list;
while (list)
{
layer = list->data;
list = g_list_next (list);
gimp_image_remove_layer (image, layer);
}
gimp_image_add_layer (image, merge_layer, position);
}
else
{
/* Add the layer to the image */
gimp_image_add_layer (image, merge_layer,
gimp_container_num_children (image->layers) - position + 1);
}
/* set the name after the original layers have been removed so we
* don't end up with #2 appended to the name
*/
gimp_object_take_name (GIMP_OBJECT (merge_layer), name);
gimp_item_set_visible (GIMP_ITEM (merge_layer), TRUE, TRUE);
/* End the merge undo group */
gimp_image_undo_group_end (image);
gimp_drawable_update (GIMP_DRAWABLE (merge_layer),
0, 0,
gimp_item_width (GIMP_ITEM (merge_layer)),
gimp_item_height (GIMP_ITEM (merge_layer)));
return merge_layer;
}
static void
init_calculation (gint32 drawable_id)
{
gdouble k;
gdouble alpha, beta;
gdouble angle;
GimpVector2 v1, v2;
gint32 *image_layers;
gint32 nlayers;
GimpRGB color;
gimp_layer_add_alpha (drawable_id);
/* Image parameters */
/* Determine Position of original Layer in the Layer stack. */
image_layers = gimp_image_get_layers (image_id, &nlayers);
drawable_position = 0;
while (drawable_position < nlayers &&
image_layers[drawable_position] != drawable_id)
drawable_position++;
switch (curl.orientation)
{
case CURL_ORIENTATION_VERTICAL:
sel_width = true_sel_width;
sel_height = true_sel_height;
break;
case CURL_ORIENTATION_HORIZONTAL:
sel_width = true_sel_height;
sel_height = true_sel_width;
break;
}
/* Circle parameters */
alpha = atan ((double) sel_height / sel_width);
beta = alpha / 2.0;
k = sel_width / ((G_PI + alpha) * sin (beta) + cos (beta));
gimp_vector2_set (¢er, k * cos (beta), k * sin (beta));
radius = center.y;
/* left_tangent */
gimp_vector2_set (&left_tangent, radius * -sin (alpha), radius * cos (alpha));
gimp_vector2_add (&left_tangent, &left_tangent, ¢er);
/* right_tangent */
gimp_vector2_sub (&v1, &left_tangent, ¢er);
gimp_vector2_set (&v2, sel_width - center.x, sel_height - center.y);
angle = -2.0 * acos (gimp_vector2_inner_product (&v1, &v2) /
(gimp_vector2_length (&v1) *
gimp_vector2_length (&v2)));
gimp_vector2_set (&right_tangent,
v1.x * cos (angle) + v1.y * -sin (angle),
v1.x * sin (angle) + v1.y * cos (angle));
gimp_vector2_add (&right_tangent, &right_tangent, ¢er);
/* Slopes */
diagl_slope = (double) sel_width / sel_height;
diagr_slope = (sel_width - right_tangent.x) / (sel_height - right_tangent.y);
diagb_slope = ((right_tangent.y - left_tangent.y) /
(right_tangent.x - left_tangent.x));
diagm_slope = (sel_width - center.x) / sel_height;
/* Colors */
gimp_context_get_foreground (&color);
gimp_rgb_get_uchar (&color, &fore_color[0], &fore_color[1], &fore_color[2]);
gimp_context_get_background (&color);
gimp_rgb_get_uchar (&color, &back_color[0], &back_color[1], &back_color[2]);
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpDrawable *drawable;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GimpRunMode run_mode;
gint32 image_ID;
run_mode = param[0].data.d_int32;
*nreturn_vals = 1;
*return_vals = values;
INIT_I18N ();
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
image_ID = param[1].data.d_image;
drawable = gimp_drawable_get (param[2].data.d_drawable);
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
gimp_get_data (PLUG_IN_PROC, &pvals);
if (! color_to_alpha_dialog (drawable))
{
gimp_drawable_detach (drawable);
return;
}
break;
case GIMP_RUN_NONINTERACTIVE:
if (nparams != 4)
status = GIMP_PDB_CALLING_ERROR;
if (status == GIMP_PDB_SUCCESS)
pvals.color = param[3].data.d_color;
break;
case GIMP_RUN_WITH_LAST_VALS:
gimp_get_data (PLUG_IN_PROC, &pvals);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS &&
gimp_drawable_is_rgb (drawable->drawable_id) &&
gimp_item_is_layer (drawable->drawable_id))
{
gboolean lock_alpha;
gimp_image_undo_group_start (image_ID);
/* Add alpha if not present */
gimp_layer_add_alpha (drawable->drawable_id);
/* Reget the drawable, bpp might have changed */
drawable = gimp_drawable_get (drawable->drawable_id);
/* Unset 'Lock alpha' */
lock_alpha = gimp_layer_get_lock_alpha (drawable->drawable_id);
gimp_layer_set_lock_alpha (drawable->drawable_id, FALSE);
gimp_progress_init (_("Removing color"));
gimp_rgn_iterate2 (drawable, 0 /* unused */, to_alpha_func, NULL);
gimp_layer_set_lock_alpha (drawable->drawable_id, lock_alpha);
gimp_image_undo_group_end (image_ID);
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
}
gimp_drawable_detach (drawable);
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data (PLUG_IN_PROC, &pvals, sizeof (pvals));
values[0].data.d_status = status;
}
static void
ico_image_get_reduced_buf (guint32 layer,
gint bpp,
gint *num_colors,
guchar **cmap_out,
guchar **buf_out)
{
gint32 tmp_image;
gint32 tmp_layer;
gint w, h;
guchar *buf;
guchar *cmap = NULL;
GeglBuffer *buffer = gimp_drawable_get_buffer (layer);
const Babl *format;
w = gegl_buffer_get_width (buffer);
h = gegl_buffer_get_height (buffer);
switch (gimp_drawable_type (layer))
{
case GIMP_RGB_IMAGE:
format = babl_format ("R'G'B' u8");
break;
case GIMP_RGBA_IMAGE:
format = babl_format ("R'G'B'A u8");
break;
case GIMP_GRAY_IMAGE:
format = babl_format ("Y' u8");
break;
case GIMP_GRAYA_IMAGE:
format = babl_format ("Y'A u8");
break;
case GIMP_INDEXED_IMAGE:
case GIMP_INDEXEDA_IMAGE:
format = gegl_buffer_get_format (buffer);
default:
g_return_if_reached ();
}
*num_colors = 0;
buf = g_new (guchar, w * h * 4);
if (bpp <= 8 || bpp == 24 || babl_format_get_bytes_per_pixel (format) != 4)
{
gint32 image = gimp_item_get_image (layer);
GeglBuffer *tmp;
tmp_image = gimp_image_new (w, h, gimp_image_base_type (image));
gimp_image_undo_disable (tmp_image);
if (gimp_drawable_is_indexed (layer))
{
guchar *cmap;
gint num_colors;
cmap = gimp_image_get_colormap (image, &num_colors);
gimp_image_set_colormap (tmp_image, cmap, num_colors);
g_free (cmap);
}
tmp_layer = gimp_layer_new (tmp_image, "tmp", w, h,
gimp_drawable_type (layer),
100, GIMP_NORMAL_MODE);
gimp_image_insert_layer (tmp_image, tmp_layer, -1, 0);
tmp = gimp_drawable_get_buffer (tmp_layer);
gegl_buffer_get (buffer, GEGL_RECTANGLE (0, 0, w, h), 1.0,
format, buf,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
gegl_buffer_copy (buffer, NULL, GEGL_ABYSS_NONE, tmp, NULL);
g_object_unref (tmp);
if (! gimp_drawable_is_rgb (tmp_layer))
gimp_image_convert_rgb (tmp_image);
if (bpp <= 8)
{
gimp_image_convert_indexed (tmp_image,
GIMP_FS_DITHER, GIMP_MAKE_PALETTE,
1 << bpp, TRUE, FALSE, "dummy");
cmap = gimp_image_get_colormap (tmp_image, num_colors);
if (*num_colors == (1 << bpp) &&
! ico_cmap_contains_black (cmap, *num_colors))
{
/* Windows icons with color maps need the color black.
* We need to eliminate one more color to make room for black.
*/
if (gimp_drawable_is_indexed (layer))
{
g_free (cmap);
cmap = gimp_image_get_colormap (image, num_colors);
gimp_image_set_colormap (tmp_image, cmap, *num_colors);
}
else if (gimp_drawable_is_gray (layer))
{
gimp_image_convert_grayscale (tmp_image);
}
else
{
gimp_image_convert_rgb (tmp_image);
}
tmp = gimp_drawable_get_buffer (tmp_layer);
gegl_buffer_set (tmp, GEGL_RECTANGLE (0, 0, w, h), 0,
format, buf, GEGL_AUTO_ROWSTRIDE);
g_object_unref (tmp);
if (! gimp_drawable_is_rgb (layer))
gimp_image_convert_rgb (tmp_image);
gimp_image_convert_indexed (tmp_image,
GIMP_FS_DITHER, GIMP_MAKE_PALETTE,
(1<<bpp) - 1, TRUE, FALSE, "dummy");
g_free (cmap);
cmap = gimp_image_get_colormap (tmp_image, num_colors);
}
gimp_image_convert_rgb (tmp_image);
}
else if (bpp == 24)
{
GimpParam *return_vals;
gint n_return_vals;
return_vals =
gimp_run_procedure ("plug-in-threshold-alpha", &n_return_vals,
GIMP_PDB_INT32, GIMP_RUN_NONINTERACTIVE,
GIMP_PDB_IMAGE, tmp_image,
GIMP_PDB_DRAWABLE, tmp_layer,
GIMP_PDB_INT32, ICO_ALPHA_THRESHOLD,
GIMP_PDB_END);
gimp_destroy_params (return_vals, n_return_vals);
}
gimp_layer_add_alpha (tmp_layer);
tmp = gimp_drawable_get_buffer (tmp_layer);
gegl_buffer_get (tmp, GEGL_RECTANGLE (0, 0, w, h), 1.0,
NULL, buf,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
g_object_unref (tmp);
gimp_image_delete (tmp_image);
}
else
{
gegl_buffer_get (buffer, GEGL_RECTANGLE (0, 0, w, h), 1.0,
format, buf,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
}
g_object_unref (buffer);
*cmap_out = cmap;
*buf_out = buf;
}
