/**
* gimp_image_scale_check:
* @image: A #GimpImage.
* @new_width: The new width.
* @new_height: The new height.
* @max_memsize: The maximum new memory size.
* @new_memsize: The new memory size.
*
* Inventory the layer list in image and check that it may be
* scaled to @new_height and @new_width without problems.
*
* Return value: #GIMP_IMAGE_SCALE_OK if scaling the image will shrink none
* of its layers completely away, and the new image size
* is smaller than @max_memsize.
* #GIMP_IMAGE_SCALE_TOO_SMALL if scaling would remove some
* existing layers.
* #GIMP_IMAGE_SCALE_TOO_BIG if the new image size would
* exceed the maximum specified in the preferences.
**/
GimpImageScaleCheckType
gimp_image_scale_check (GimpImage *image,
gint new_width,
gint new_height,
gint64 max_memsize,
gint64 *new_memsize)
{
GList *all_layers;
GList *list;
gint64 current_size;
gint64 undo_size;
gint64 redo_size;
gint64 new_size;
g_return_val_if_fail (GIMP_IS_IMAGE (image), GIMP_IMAGE_SCALE_TOO_SMALL);
g_return_val_if_fail (new_memsize != NULL, GIMP_IMAGE_SCALE_TOO_SMALL);
current_size = gimp_object_get_memsize (GIMP_OBJECT (image), NULL);
new_size = gimp_image_estimate_memsize (image,
gimp_image_get_component_type (image),
new_width, new_height);
undo_size = gimp_object_get_memsize (GIMP_OBJECT (gimp_image_get_undo_stack (image)), NULL);
redo_size = gimp_object_get_memsize (GIMP_OBJECT (gimp_image_get_redo_stack (image)), NULL);
current_size -= undo_size + redo_size;
new_size -= undo_size + redo_size;
GIMP_LOG (IMAGE_SCALE,
"old_size = %"G_GINT64_FORMAT" new_size = %"G_GINT64_FORMAT,
current_size, new_size);
*new_memsize = new_size;
if (new_size > current_size && new_size > max_memsize)
return GIMP_IMAGE_SCALE_TOO_BIG;
all_layers = gimp_image_get_layer_list (image);
for (list = all_layers; list; list = g_list_next (list))
{
GimpItem *item = list->data;
/* group layers are updated automatically */
if (gimp_viewable_get_children (GIMP_VIEWABLE (item)))
continue;
if (! gimp_item_check_scaling (item, new_width, new_height))
{
g_list_free (all_layers);
return GIMP_IMAGE_SCALE_TOO_SMALL;
}
}
g_list_free (all_layers);
return GIMP_IMAGE_SCALE_OK;
}
void
view_use_gegl_cmd_callback (GtkAction *action,
gpointer data)
{
GimpImage *image;
GimpDisplayShell *shell;
GList *layers;
GList *list;
gboolean active;
return_if_no_image (image, data);
return_if_no_shell (shell, data);
active = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
gimp_image_get_projection (image)->use_gegl = active;
layers = gimp_image_get_layer_list (image);
for (list = layers; list; list = g_list_next (list))
{
GimpLayer *layer = list->data;
if (GIMP_IS_GROUP_LAYER (layer))
gimp_group_layer_get_projection (GIMP_GROUP_LAYER (layer))->use_gegl = active;
}
g_list_free (layers);
gimp_image_invalidate (image, 0, 0,
gimp_image_get_width (image),
gimp_image_get_height (image));
gimp_image_flush (image);
}
GimpLayer *
gimp_image_pick_layer (const GimpImage *image,
gint x,
gint y)
{
GList *all_layers;
GList *list;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
all_layers = gimp_image_get_layer_list (image);
for (list = all_layers; list; list = g_list_next (list))
{
GimpLayer *layer = list->data;
gint off_x, off_y;
gimp_item_get_offset (GIMP_ITEM (layer), &off_x, &off_y);
if (gimp_pickable_get_opacity_at (GIMP_PICKABLE (layer),
x - off_x, y - off_y) > 63)
{
g_list_free (all_layers);
return layer;
}
}
g_list_free (all_layers);
return NULL;
}
/**
* gimp_image_item_list_get_list:
* @image: An @image.
* @type: Which type of items to return.
* @set: Set the returned items are part of.
*
* This function returns a #GList of #GimpItem<!-- -->s for which the
* @type and @set criterions match.
*
* Return value: The list of items.
**/
GList *
gimp_image_item_list_get_list (GimpImage *image,
GimpItemTypeMask type,
GimpItemSet set)
{
GList *all_items;
GList *list;
GList *return_list = NULL;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
if (type & GIMP_ITEM_TYPE_LAYERS)
{
all_items = gimp_image_get_layer_list (image);
for (list = all_items; list; list = g_list_next (list))
{
GimpItem *item = list->data;
if (gimp_item_is_in_set (item, set))
return_list = g_list_prepend (return_list, item);
}
g_list_free (all_items);
}
if (type & GIMP_ITEM_TYPE_CHANNELS)
{
all_items = gimp_image_get_channel_list (image);
for (list = all_items; list; list = g_list_next (list))
{
GimpItem *item = list->data;
if (gimp_item_is_in_set (item, set))
return_list = g_list_prepend (return_list, item);
}
g_list_free (all_items);
}
if (type & GIMP_ITEM_TYPE_VECTORS)
{
all_items = gimp_image_get_vectors_list (image);
for (list = all_items; list; list = g_list_next (list))
{
GimpItem *item = list->data;
if (gimp_item_is_in_set (item, set))
return_list = g_list_prepend (return_list, item);
}
g_list_free (all_items);
}
return g_list_reverse (return_list);
}
static void
layer_select_advance (LayerSelect *layer_select,
gint move)
{
GimpLayer *active_layer;
GimpLayer *next_layer;
GList *layers;
gint n_layers;
gint index;
if (move == 0)
return;
/* If there is a floating selection, allow no advancement */
if (gimp_image_get_floating_selection (layer_select->image))
return;
active_layer = gimp_image_get_active_layer (layer_select->image);
layers = gimp_image_get_layer_list (layer_select->image);
n_layers = g_list_length (layers);
index = g_list_index (layers, active_layer);
index += move;
if (index < 0)
index = n_layers - 1;
else if (index >= n_layers)
index = 0;
next_layer = g_list_nth_data (layers, index);
g_list_free (layers);
if (next_layer && next_layer != active_layer)
{
active_layer = gimp_image_set_active_layer (layer_select->image,
next_layer);
if (active_layer)
{
gimp_view_set_viewable (GIMP_VIEW (layer_select->view),
GIMP_VIEWABLE (active_layer));
gtk_label_set_text (GTK_LABEL (layer_select->label),
gimp_object_get_name (active_layer));
}
}
}
GimpTextLayer *
gimp_image_pick_text_layer (const GimpImage *image,
gint x,
gint y)
{
GList *all_layers;
GList *list;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
all_layers = gimp_image_get_layer_list (image);
for (list = all_layers; list; list = g_list_next (list))
{
GimpLayer *layer = list->data;
gint off_x, off_y;
gimp_item_get_offset (GIMP_ITEM (layer), &off_x, &off_y);
if (GIMP_IS_TEXT_LAYER (layer) &&
x >= off_x &&
y >= off_y &&
x < off_x + gimp_item_get_width (GIMP_ITEM (layer)) &&
y < off_y + gimp_item_get_height (GIMP_ITEM (layer)))
{
g_list_free (all_layers);
return GIMP_TEXT_LAYER (layer);
}
else if (gimp_pickable_get_opacity_at (GIMP_PICKABLE (layer),
x - off_x, y - off_y) > 63)
{
/* a normal layer covers any possible text layers below,
* bail out
*/
break;
}
}
g_list_free (all_layers);
return NULL;
}
GimpLayer *
gimp_image_pick_layer_by_bounds (const GimpImage *image,
gint x,
gint y)
{
GList *all_layers;
GList *list;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
all_layers = gimp_image_get_layer_list (image);
for (list = all_layers; list; list = g_list_next (list))
{
GimpLayer *layer = list->data;
if (gimp_item_get_visible (GIMP_ITEM (layer)))
{
gint off_x, off_y;
gint width, height;
gimp_item_get_offset (GIMP_ITEM (layer), &off_x, &off_y);
width = gimp_item_get_width (GIMP_ITEM (layer));
height = gimp_item_get_height (GIMP_ITEM (layer));
if (x >= off_x &&
y >= off_y &&
x < off_x + width &&
y < off_y + height)
{
g_list_free (all_layers);
return layer;
}
}
}
g_list_free (all_layers);
return NULL;
}
static void
gimp_image_convert_profile_rgb (GimpImage *image,
GimpColorProfile *src_profile,
GimpColorProfile *dest_profile,
GimpColorRenderingIntent intent,
gboolean bpc,
GimpProgress *progress)
{
GList *layers;
GList *list;
gint n_drawables;
gint nth_drawable;
layers = gimp_image_get_layer_list (image);
n_drawables = g_list_length (layers);
for (list = layers, nth_drawable = 0;
list;
list = g_list_next (list), nth_drawable++)
{
GimpDrawable *drawable = list->data;
cmsHPROFILE src_lcms;
cmsHPROFILE dest_lcms;
const Babl *iter_format;
cmsUInt32Number lcms_format;
cmsUInt32Number flags;
cmsHTRANSFORM transform;
if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable)))
continue;
src_lcms = gimp_color_profile_get_lcms_profile (src_profile);
dest_lcms = gimp_color_profile_get_lcms_profile (dest_profile);
iter_format =
gimp_color_profile_get_format (gimp_drawable_get_format (drawable),
&lcms_format);
flags = cmsFLAGS_NOOPTIMIZE;
if (bpc)
flags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
transform = cmsCreateTransform (src_lcms, lcms_format,
dest_lcms, lcms_format,
intent, flags);
if (transform)
{
GeglBuffer *buffer;
GeglBufferIterator *iter;
buffer = gimp_drawable_get_buffer (drawable);
gimp_drawable_push_undo (drawable, NULL, NULL,
0, 0,
gegl_buffer_get_width (buffer),
gegl_buffer_get_height (buffer));
iter = gegl_buffer_iterator_new (buffer, NULL, 0,
iter_format,
GEGL_ACCESS_READWRITE,
GEGL_ABYSS_NONE);
while (gegl_buffer_iterator_next (iter))
{
cmsDoTransform (transform,
iter->data[0], iter->data[0], iter->length);
}
gimp_drawable_update (drawable, 0, 0,
gegl_buffer_get_width (buffer),
gegl_buffer_get_height (buffer));
cmsDeleteTransform (transform);
}
if (progress)
gimp_progress_set_value (progress,
(gdouble) nth_drawable / (gdouble) n_drawables);
}
g_list_free (layers);
}
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);
}
/* some rather complex logic here. If the user clicks without modifiers,
* then we start a new list, and use the first object in it as reference.
* If the user clicks using Shift, or draws a rubber-band box, then
* we add objects to the list, but do not specify which one should
* be used as reference.
*/
static void
gimp_align_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (tool);
GimpAlignOptions *options = GIMP_ALIGN_TOOL_GET_OPTIONS (tool);
GimpDisplayShell *shell = gimp_display_get_shell (display);
GObject *object = NULL;
GimpImage *image = gimp_display_get_image (display);
GdkModifierType extend_mask;
gint i;
extend_mask = gimp_get_extend_selection_mask ();
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
gimp_tool_control_halt (tool->control);
if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
{
align_tool->x2 = align_tool->x1;
align_tool->y2 = align_tool->y1;
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
return;
}
if (! (state & extend_mask)) /* start a new list */
{
gimp_align_tool_clear_selected (align_tool);
align_tool->set_reference = FALSE;
}
/* if mouse has moved less than EPSILON pixels since button press,
* select the nearest thing, otherwise make a rubber-band rectangle
*/
if (hypot (coords->x - align_tool->x1,
coords->y - align_tool->y1) < EPSILON)
{
GimpVectors *vectors;
GimpGuide *guide;
GimpLayer *layer;
gint snap_distance = display->config->snap_distance;
if (gimp_draw_tool_on_vectors (GIMP_DRAW_TOOL (tool), display,
coords, snap_distance, snap_distance,
NULL, NULL, NULL, NULL, NULL,
&vectors))
{
object = G_OBJECT (vectors);
}
else if (gimp_display_shell_get_show_guides (shell) &&
(guide = gimp_image_find_guide (image,
coords->x, coords->y,
FUNSCALEX (shell, snap_distance),
FUNSCALEY (shell, snap_distance))))
{
object = G_OBJECT (guide);
}
else
{
if ((layer = gimp_image_pick_layer_by_bounds (image,
coords->x, coords->y)))
{
object = G_OBJECT (layer);
}
}
if (object)
{
if (! g_list_find (align_tool->selected_objects, object))
{
align_tool->selected_objects =
g_list_append (align_tool->selected_objects, object);
g_signal_connect (object, "removed",
G_CALLBACK (gimp_align_tool_object_removed),
align_tool);
/* if an object has been selected using unmodified click,
* it should be used as the reference
*/
if (! (state & extend_mask))
align_tool->set_reference = TRUE;
}
}
}
else /* FIXME: look for vectors too */
{
gint X0 = MIN (coords->x, align_tool->x1);
gint X1 = MAX (coords->x, align_tool->x1);
gint Y0 = MIN (coords->y, align_tool->y1);
gint Y1 = MAX (coords->y, align_tool->y1);
GList *all_layers;
GList *list;
all_layers = gimp_image_get_layer_list (image);
for (list = all_layers; list; list = g_list_next (list))
{
GimpLayer *layer = list->data;
gint x0, y0, x1, y1;
if (! gimp_item_get_visible (GIMP_ITEM (layer)))
continue;
gimp_item_get_offset (GIMP_ITEM (layer), &x0, &y0);
x1 = x0 + gimp_item_get_width (GIMP_ITEM (layer));
y1 = y0 + gimp_item_get_height (GIMP_ITEM (layer));
if (x0 < X0 || y0 < Y0 || x1 > X1 || y1 > Y1)
continue;
if (g_list_find (align_tool->selected_objects, layer))
continue;
align_tool->selected_objects =
g_list_append (align_tool->selected_objects, layer);
g_signal_connect (layer, "removed",
G_CALLBACK (gimp_align_tool_object_removed),
align_tool);
}
g_list_free (all_layers);
}
for (i = 0; i < ALIGN_OPTIONS_N_BUTTONS; i++)
{
if (options->button[i])
gtk_widget_set_sensitive (options->button[i],
align_tool->selected_objects != NULL);
}
align_tool->x2 = align_tool->x1;
align_tool->y2 = align_tool->y1;
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
void
gimp_image_convert_precision (GimpImage *image,
GimpPrecision precision,
gint layer_dither_type,
gint text_layer_dither_type,
gint mask_dither_type,
GimpProgress *progress)
{
GList *all_drawables;
GList *list;
const gchar *undo_desc = NULL;
gint nth_drawable, n_drawables;
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (precision != gimp_image_get_precision (image));
g_return_if_fail (precision == GIMP_PRECISION_U8_GAMMA ||
gimp_image_get_base_type (image) != GIMP_INDEXED);
g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
all_drawables = g_list_concat (gimp_image_get_layer_list (image),
gimp_image_get_channel_list (image));
n_drawables = g_list_length (all_drawables) + 1 /* + selection */;
switch (precision)
{
case GIMP_PRECISION_U8_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 8 bit linear integer");
break;
case GIMP_PRECISION_U8_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 8 bit gamma integer");
break;
case GIMP_PRECISION_U16_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 16 bit linear integer");
break;
case GIMP_PRECISION_U16_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 16 bit gamma integer");
break;
case GIMP_PRECISION_U32_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 32 bit linear integer");
break;
case GIMP_PRECISION_U32_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 32 bit gamma integer");
break;
case GIMP_PRECISION_HALF_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 16 bit linear floating point");
break;
case GIMP_PRECISION_HALF_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 16 bit gamma floating point");
break;
case GIMP_PRECISION_FLOAT_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 32 bit linear floating point");
break;
case GIMP_PRECISION_FLOAT_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 32 bit gamma floating point");
break;
case GIMP_PRECISION_DOUBLE_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 64 bit linear floating point");
break;
case GIMP_PRECISION_DOUBLE_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 64 bit gamma floating point");
break;
}
if (progress)
gimp_progress_start (progress, FALSE, "%s", undo_desc);
g_object_freeze_notify (G_OBJECT (image));
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_CONVERT,
undo_desc);
/* Push the image precision to the stack */
gimp_image_undo_push_image_precision (image, NULL);
/* Set the new precision */
g_object_set (image, "precision", precision, NULL);
for (list = all_drawables, nth_drawable = 0;
list;
list = g_list_next (list), nth_drawable++)
{
GimpDrawable *drawable = list->data;
gint dither_type;
if (gimp_item_is_text_layer (GIMP_ITEM (drawable)))
dither_type = text_layer_dither_type;
else
dither_type = layer_dither_type;
gimp_drawable_convert_type (drawable, image,
gimp_drawable_get_base_type (drawable),
precision,
dither_type,
mask_dither_type,
FALSE,
TRUE);
if (progress)
gimp_progress_set_value (progress,
(gdouble) nth_drawable / (gdouble) n_drawables);
}
g_list_free (all_drawables);
/* convert the selection mask */
{
GimpChannel *mask = gimp_image_get_mask (image);
GeglBuffer *buffer;
gimp_image_undo_push_mask_precision (image, NULL, mask);
buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
gimp_image_get_width (image),
gimp_image_get_height (image)),
gimp_image_get_mask_format (image));
gegl_buffer_copy (gimp_drawable_get_buffer (GIMP_DRAWABLE (mask)), NULL,
GEGL_ABYSS_NONE,
buffer, NULL);
gimp_drawable_set_buffer (GIMP_DRAWABLE (mask), FALSE, NULL, buffer);
g_object_unref (buffer);
nth_drawable++;
if (progress)
gimp_progress_set_value (progress,
(gdouble) nth_drawable / (gdouble) n_drawables);
}
gimp_image_undo_group_end (image);
gimp_image_precision_changed (image);
g_object_thaw_notify (G_OBJECT (image));
if (progress)
gimp_progress_end (progress);
}
void
gimp_image_convert_precision (GimpImage *image,
GimpPrecision precision,
gint layer_dither_type,
gint text_layer_dither_type,
gint mask_dither_type,
GimpProgress *progress)
{
GimpColorProfile *old_profile;
GimpColorProfile *new_profile = NULL;
const Babl *old_format;
const Babl *new_format;
GList *all_drawables;
GList *list;
const gchar *undo_desc = NULL;
GimpProgress *sub_progress = NULL;
gint nth_drawable, n_drawables;
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (precision != gimp_image_get_precision (image));
g_return_if_fail (precision == GIMP_PRECISION_U8_GAMMA ||
gimp_image_get_base_type (image) != GIMP_INDEXED);
g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
all_drawables = g_list_concat (gimp_image_get_layer_list (image),
gimp_image_get_channel_list (image));
n_drawables = g_list_length (all_drawables) + 1 /* + selection */;
if (progress)
sub_progress = gimp_sub_progress_new (progress);
switch (precision)
{
case GIMP_PRECISION_U8_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 8 bit linear integer");
break;
case GIMP_PRECISION_U8_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 8 bit gamma integer");
break;
case GIMP_PRECISION_U16_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 16 bit linear integer");
break;
case GIMP_PRECISION_U16_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 16 bit gamma integer");
break;
case GIMP_PRECISION_U32_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 32 bit linear integer");
break;
case GIMP_PRECISION_U32_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 32 bit gamma integer");
break;
case GIMP_PRECISION_HALF_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 16 bit linear floating point");
break;
case GIMP_PRECISION_HALF_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 16 bit gamma floating point");
break;
case GIMP_PRECISION_FLOAT_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 32 bit linear floating point");
break;
case GIMP_PRECISION_FLOAT_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 32 bit gamma floating point");
break;
case GIMP_PRECISION_DOUBLE_LINEAR:
undo_desc = C_("undo-type", "Convert Image to 64 bit linear floating point");
break;
case GIMP_PRECISION_DOUBLE_GAMMA:
undo_desc = C_("undo-type", "Convert Image to 64 bit gamma floating point");
break;
}
if (progress)
gimp_progress_start (progress, FALSE, "%s", undo_desc);
g_object_freeze_notify (G_OBJECT (image));
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_CONVERT,
undo_desc);
/* Push the image precision to the stack */
gimp_image_undo_push_image_precision (image, NULL);
old_profile = gimp_image_get_color_profile (image);
old_format = gimp_image_get_layer_format (image, FALSE);
/* Set the new precision */
g_object_set (image, "precision", precision, NULL);
new_format = gimp_image_get_layer_format (image, FALSE);
if (old_profile &&
gimp_babl_format_get_linear (old_format) !=
gimp_babl_format_get_linear (new_format))
{
GimpColorProfile *new_profile;
/* when converting between linear and gamma, we create a new
* profile using the original profile's chromacities and
* whitepoint, but a linear/sRGB-gamma TRC.
*/
if (gimp_babl_format_get_linear (new_format))
{
new_profile =
gimp_color_profile_new_linear_from_color_profile (old_profile);
}
else
{
new_profile =
gimp_color_profile_new_srgb_trc_from_color_profile (old_profile);
}
/* if a new profile cannot be be generated, convert to the
* builtin profile, which is better than leaving the user with
* broken colors
*/
if (! new_profile)
{
new_profile = gimp_image_get_builtin_color_profile (image);
g_object_ref (new_profile);
}
}
for (list = all_drawables, nth_drawable = 0;
list;
list = g_list_next (list), nth_drawable++)
{
GimpDrawable *drawable = list->data;
gint dither_type;
if (gimp_item_is_text_layer (GIMP_ITEM (drawable)))
dither_type = text_layer_dither_type;
else
dither_type = layer_dither_type;
if (sub_progress)
gimp_sub_progress_set_step (GIMP_SUB_PROGRESS (sub_progress),
nth_drawable, n_drawables);
gimp_drawable_convert_type (drawable, image,
gimp_drawable_get_base_type (drawable),
precision,
new_profile,
dither_type,
mask_dither_type,
TRUE, sub_progress);
}
g_list_free (all_drawables);
if (old_profile)
{
gimp_image_set_color_profile (image, new_profile, NULL);
g_object_unref (new_profile);
}
/* convert the selection mask */
{
GimpChannel *mask = gimp_image_get_mask (image);
GeglBuffer *buffer;
if (sub_progress)
gimp_sub_progress_set_step (GIMP_SUB_PROGRESS (sub_progress),
nth_drawable, n_drawables);
gimp_image_undo_push_mask_precision (image, NULL, mask);
buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
gimp_image_get_width (image),
gimp_image_get_height (image)),
gimp_image_get_mask_format (image));
gegl_buffer_copy (gimp_drawable_get_buffer (GIMP_DRAWABLE (mask)), NULL,
GEGL_ABYSS_NONE,
buffer, NULL);
gimp_drawable_set_buffer (GIMP_DRAWABLE (mask), FALSE, NULL, buffer);
g_object_unref (buffer);
nth_drawable++;
}
if (sub_progress)
gimp_progress_set_value (sub_progress, 1.0);
gimp_image_undo_group_end (image);
gimp_image_precision_changed (image);
g_object_thaw_notify (G_OBJECT (image));
if (sub_progress)
g_object_unref (sub_progress);
if (progress)
gimp_progress_end (progress);
}
static void
gimp_image_convert_profile_layers (GimpImage *image,
GimpColorProfile *src_profile,
GimpColorProfile *dest_profile,
GimpColorRenderingIntent intent,
gboolean bpc,
GimpProgress *progress)
{
GList *layers;
GList *list;
gint n_drawables = 0;
gint nth_drawable = 0;
layers = gimp_image_get_layer_list (image);
for (list = layers; list; list = g_list_next (list))
{
if (! gimp_viewable_get_children (list->data))
n_drawables++;
}
for (list = layers; list; list = g_list_next (list))
{
GimpDrawable *drawable = list->data;
GimpProgress *sub_progress = NULL;
if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable)))
continue;
if (progress)
{
sub_progress = gimp_sub_progress_new (progress);
gimp_sub_progress_set_step (GIMP_SUB_PROGRESS (sub_progress),
nth_drawable, n_drawables);
}
nth_drawable++;
gimp_drawable_push_undo (drawable, NULL, NULL,
0, 0,
gimp_item_get_width (GIMP_ITEM (drawable)),
gimp_item_get_height (GIMP_ITEM (drawable)));
gimp_gegl_convert_color_profile (gimp_drawable_get_buffer (drawable),
NULL,
src_profile,
gimp_drawable_get_buffer (drawable),
NULL,
dest_profile,
intent, bpc,
sub_progress);
gimp_drawable_update (drawable, 0, 0,
gimp_item_get_width (GIMP_ITEM (drawable)),
gimp_item_get_height (GIMP_ITEM (drawable)));
if (sub_progress)
g_object_unref (sub_progress);
}
g_list_free (layers);
}
void
gimp_image_scale (GimpImage *image,
gint new_width,
gint new_height,
GimpInterpolationType interpolation_type,
GimpProgress *progress)
{
GimpProgress *sub_progress;
GList *all_layers;
GList *all_channels;
GList *all_vectors;
GList *list;
gint old_width;
gint old_height;
gint offset_x;
gint offset_y;
gdouble img_scale_w = 1.0;
gdouble img_scale_h = 1.0;
gint progress_steps;
gint progress_current = 0;
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (new_width > 0 && new_height > 0);
g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
gimp_set_busy (image->gimp);
sub_progress = gimp_sub_progress_new (progress);
all_layers = gimp_image_get_layer_list (image);
all_channels = gimp_image_get_channel_list (image);
all_vectors = gimp_image_get_vectors_list (image);
progress_steps = (g_list_length (all_layers) +
g_list_length (all_channels) +
g_list_length (all_vectors) +
1 /* selection */);
g_object_freeze_notify (G_OBJECT (image));
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_SCALE,
C_("undo-type", "Scale Image"));
old_width = gimp_image_get_width (image);
old_height = gimp_image_get_height (image);
img_scale_w = (gdouble) new_width / (gdouble) old_width;
img_scale_h = (gdouble) new_height / (gdouble) old_height;
offset_x = (old_width - new_width) / 2;
offset_y = (old_height - new_height) / 2;
/* Push the image size to the stack */
gimp_image_undo_push_image_size (image,
NULL,
offset_x,
offset_y,
new_width,
new_height);
/* Set the new width and height early, so below image item setters
* (esp. guides and sample points) don't choke about moving stuff
* out of the image
*/
g_object_set (image,
"width", new_width,
"height", new_height,
NULL);
/* Scale all channels */
for (list = all_channels; list; list = g_list_next (list))
{
GimpItem *item = list->data;
gimp_sub_progress_set_step (GIMP_SUB_PROGRESS (sub_progress),
progress_current++, progress_steps);
gimp_item_scale (item,
new_width, new_height, 0, 0,
interpolation_type, sub_progress);
}
/* Scale all vectors */
for (list = all_vectors; list; list = g_list_next (list))
{
GimpItem *item = list->data;
gimp_sub_progress_set_step (GIMP_SUB_PROGRESS (sub_progress),
progress_current++, progress_steps);
gimp_item_scale (item,
new_width, new_height, 0, 0,
interpolation_type, sub_progress);
}
/* Don't forget the selection mask! */
gimp_sub_progress_set_step (GIMP_SUB_PROGRESS (sub_progress),
progress_current++, progress_steps);
gimp_item_scale (GIMP_ITEM (gimp_image_get_mask (image)),
new_width, new_height, 0, 0,
interpolation_type, sub_progress);
/* Scale all layers */
for (list = all_layers; list; list = g_list_next (list))
{
GimpItem *item = list->data;
gimp_sub_progress_set_step (GIMP_SUB_PROGRESS (sub_progress),
progress_current++, progress_steps);
/* group layers are updated automatically */
if (gimp_viewable_get_children (GIMP_VIEWABLE (item)))
{
gimp_group_layer_suspend_resize (GIMP_GROUP_LAYER (item), FALSE);
continue;
}
if (! gimp_item_scale_by_factors (item,
img_scale_w, img_scale_h,
interpolation_type, sub_progress))
{
/* Since 0 < img_scale_w, img_scale_h, failure due to one or more
* vanishing scaled layer dimensions. Implicit delete implemented
* here. Upstream warning implemented in resize_check_layer_scaling(),
* which offers the user the chance to bail out.
*/
gimp_image_remove_layer (image, GIMP_LAYER (item), TRUE, NULL);
}
}
for (list = all_layers; list; list = g_list_next (list))
if (gimp_viewable_get_children (list->data))
gimp_group_layer_resume_resize (list->data, FALSE);
/* Scale all Guides */
for (list = gimp_image_get_guides (image);
list;
list = g_list_next (list))
{
GimpGuide *guide = list->data;
gint position = gimp_guide_get_position (guide);
switch (gimp_guide_get_orientation (guide))
{
case GIMP_ORIENTATION_HORIZONTAL:
gimp_image_move_guide (image, guide,
(position * new_height) / old_height,
TRUE);
break;
case GIMP_ORIENTATION_VERTICAL:
gimp_image_move_guide (image, guide,
(position * new_width) / old_width,
TRUE);
break;
default:
break;
}
}
/* Scale all sample points */
for (list = gimp_image_get_sample_points (image);
list;
list = g_list_next (list))
{
GimpSamplePoint *sample_point = list->data;
gimp_image_move_sample_point (image, sample_point,
sample_point->x * new_width / old_width,
sample_point->y * new_height / old_height,
TRUE);
}
gimp_image_undo_group_end (image);
g_list_free (all_layers);
g_list_free (all_channels);
g_list_free (all_vectors);
g_object_unref (sub_progress);
gimp_image_size_changed_detailed (image,
-offset_x,
-offset_y,
old_width,
old_height);
g_object_thaw_notify (G_OBJECT (image));
gimp_unset_busy (image->gimp);
}
/**
* gimp_image_scale_check:
* @image: A #GimpImage.
* @new_width: The new width.
* @new_height: The new height.
* @max_memsize: The maximum new memory size.
* @new_memsize: The new memory size.
*
* Inventory the layer list in image and check that it may be
* scaled to @new_height and @new_width without problems.
*
* Return value: #GIMP_IMAGE_SCALE_OK if scaling the image will shrink none
* of its layers completely away, and the new image size
* is smaller than @max_memsize.
* #GIMP_IMAGE_SCALE_TOO_SMALL if scaling would remove some
* existing layers.
* #GIMP_IMAGE_SCALE_TOO_BIG if the new image size would
* exceed the maximum specified in the preferences.
**/
GimpImageScaleCheckType
gimp_image_scale_check (const GimpImage *image,
gint new_width,
gint new_height,
gint64 max_memsize,
gint64 *new_memsize)
{
GList *drawables;
GList *all_layers;
GList *list;
gint64 current_size;
gint64 scalable_size;
gint64 scaled_size;
gint64 undo_size;
gint64 redo_size;
gint64 fixed_size;
gint64 new_size;
g_return_val_if_fail (GIMP_IS_IMAGE (image), GIMP_IMAGE_SCALE_TOO_SMALL);
g_return_val_if_fail (new_memsize != NULL, GIMP_IMAGE_SCALE_TOO_SMALL);
current_size = gimp_object_get_memsize (GIMP_OBJECT (image), NULL);
/* the part of the image's memsize that scales linearly with the image */
drawables = gimp_image_item_list_get_list (image, NULL,
GIMP_ITEM_TYPE_LAYERS |
GIMP_ITEM_TYPE_CHANNELS,
GIMP_ITEM_SET_ALL);
gimp_image_item_list_filter (NULL, drawables, TRUE, FALSE);
drawables = g_list_prepend (drawables, gimp_image_get_mask (image));
scalable_size = 0;
scaled_size = 0;
for (list = drawables; list; list = g_list_next (list))
{
GimpDrawable *drawable = list->data;
gdouble width = gimp_item_get_width (GIMP_ITEM (drawable));
gdouble height = gimp_item_get_height (GIMP_ITEM (drawable));
scalable_size +=
gimp_drawable_estimate_memsize (drawable,
width, height);
scaled_size +=
gimp_drawable_estimate_memsize (drawable,
width * new_width /
gimp_image_get_width (image),
height * new_height /
gimp_image_get_height (image));
}
g_list_free (drawables);
scalable_size +=
gimp_projection_estimate_memsize (gimp_image_get_base_type (image),
gimp_image_get_precision (image),
gimp_image_get_width (image),
gimp_image_get_height (image));
scaled_size +=
gimp_projection_estimate_memsize (gimp_image_get_base_type (image),
gimp_image_get_precision (image),
new_width, new_height);
GIMP_LOG (IMAGE_SCALE,
"scalable_size = %"G_GINT64_FORMAT" scaled_size = %"G_GINT64_FORMAT,
scalable_size, scaled_size);
undo_size = gimp_object_get_memsize (GIMP_OBJECT (gimp_image_get_undo_stack (image)), NULL);
redo_size = gimp_object_get_memsize (GIMP_OBJECT (gimp_image_get_redo_stack (image)), NULL);
/* the fixed part of the image's memsize w/o any undo information */
fixed_size = current_size - undo_size - redo_size - scalable_size;
/* calculate the new size, which is: */
new_size = (fixed_size + /* the fixed part */
scaled_size); /* plus the part that scales... */
GIMP_LOG (IMAGE_SCALE,
"old_size = %"G_GINT64_FORMAT" new_size = %"G_GINT64_FORMAT,
current_size - undo_size - redo_size, new_size);
*new_memsize = new_size;
if (new_size > current_size && new_size > max_memsize)
return GIMP_IMAGE_SCALE_TOO_BIG;
all_layers = gimp_image_get_layer_list (image);
for (list = all_layers; list; list = g_list_next (list))
{
GimpItem *item = list->data;
/* group layers are updated automatically */
if (gimp_viewable_get_children (GIMP_VIEWABLE (item)))
continue;
if (! gimp_item_check_scaling (item, new_width, new_height))
{
g_list_free (all_layers);
return GIMP_IMAGE_SCALE_TOO_SMALL;
}
}
g_list_free (all_layers);
return GIMP_IMAGE_SCALE_OK;
}
