void
gimp_channel_combine_mask (GimpChannel *mask,
GimpChannel *add_on,
GimpChannelOps op,
gint off_x,
gint off_y)
{
PixelRegion srcPR, destPR;
gint x, y, w, h;
g_return_if_fail (GIMP_IS_CHANNEL (mask));
g_return_if_fail (GIMP_IS_CHANNEL (add_on));
if (! gimp_rectangle_intersect (off_x, off_y,
gimp_item_get_width (GIMP_ITEM (add_on)),
gimp_item_get_height (GIMP_ITEM (add_on)),
0, 0,
gimp_item_get_width (GIMP_ITEM (mask)),
gimp_item_get_height (GIMP_ITEM (mask)),
&x, &y, &w, &h))
return;
pixel_region_init (&srcPR, gimp_drawable_get_tiles (GIMP_DRAWABLE (add_on)),
x - off_x, y - off_y, w, h, FALSE);
pixel_region_init (&destPR, gimp_drawable_get_tiles (GIMP_DRAWABLE (mask)),
x, y, w, h, TRUE);
switch (op)
{
case GIMP_CHANNEL_OP_ADD:
case GIMP_CHANNEL_OP_REPLACE:
pixel_regions_process_parallel ((PixelProcessorFunc)
gimp_channel_combine_sub_region_add,
NULL, 2, &srcPR, &destPR);
break;
case GIMP_CHANNEL_OP_SUBTRACT:
pixel_regions_process_parallel ((PixelProcessorFunc)
gimp_channel_combine_sub_region_sub,
NULL, 2, &srcPR, &destPR);
break;
case GIMP_CHANNEL_OP_INTERSECT:
pixel_regions_process_parallel ((PixelProcessorFunc)
gimp_channel_combine_sub_region_intersect,
NULL, 2, &srcPR, &destPR);
break;
default:
g_warning ("%s: unknown operation type", G_STRFUNC);
break;
}
mask->bounds_known = FALSE;
gimp_drawable_update (GIMP_DRAWABLE (mask), x, y, w, h);
}
void
floating_sel_anchor (GimpLayer *layer)
{
GimpImage *image;
GimpDrawable *drawable;
GimpFilter *filter = NULL;
gint off_x, off_y;
gint dr_off_x, dr_off_y;
g_return_if_fail (GIMP_IS_LAYER (layer));
g_return_if_fail (gimp_layer_is_floating_sel (layer));
/* Don't let gimp_image_remove_layer free the layer while we still need it */
g_object_ref (layer);
image = gimp_item_get_image (GIMP_ITEM (layer));
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_FS_ANCHOR,
C_("undo-type", "Anchor Floating Selection"));
drawable = gimp_layer_get_floating_sel_drawable (layer);
gimp_item_get_offset (GIMP_ITEM (layer), &off_x, &off_y);
gimp_item_get_offset (GIMP_ITEM (drawable), &dr_off_x, &dr_off_y);
if (gimp_item_get_visible (GIMP_ITEM (layer)) &&
gimp_rectangle_intersect (off_x, off_y,
gimp_item_get_width (GIMP_ITEM (layer)),
gimp_item_get_height (GIMP_ITEM (layer)),
dr_off_x, dr_off_y,
gimp_item_get_width (GIMP_ITEM (drawable)),
gimp_item_get_height (GIMP_ITEM (drawable)),
NULL, NULL, NULL, NULL))
{
filter = gimp_drawable_get_floating_sel_filter (drawable);
g_object_ref (filter);
}
/* first remove the filter, then merge it, or we will get warnings
* about already connected nodes
*/
gimp_image_remove_layer (image, layer, TRUE, NULL);
if (filter)
{
gimp_drawable_merge_filter (drawable, filter, NULL, NULL);
g_object_unref (filter);
}
gimp_image_undo_group_end (image);
/* invalidate the boundaries */
gimp_drawable_invalidate_boundary (GIMP_DRAWABLE (gimp_image_get_mask (image)));
g_object_unref (layer);
}
void
gimp_channel_combine_rect (GimpChannel *mask,
GimpChannelOps op,
gint x,
gint y,
gint w,
gint h)
{
GeglBuffer *buffer;
g_return_if_fail (GIMP_IS_CHANNEL (mask));
buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
if (! gimp_gegl_mask_combine_rect (buffer, op, x, y, w, h))
return;
gimp_rectangle_intersect (x, y, w, h,
0, 0,
gimp_item_get_width (GIMP_ITEM (mask)),
gimp_item_get_height (GIMP_ITEM (mask)),
&x, &y, &w, &h);
/* Determine new boundary */
if (mask->bounds_known && (op == GIMP_CHANNEL_OP_ADD) && ! mask->empty)
{
if (x < mask->x1)
mask->x1 = x;
if (y < mask->y1)
mask->y1 = y;
if ((x + w) > mask->x2)
mask->x2 = (x + w);
if ((y + h) > mask->y2)
mask->y2 = (y + h);
}
else if (op == GIMP_CHANNEL_OP_REPLACE || mask->empty)
{
mask->empty = FALSE;
mask->x1 = x;
mask->y1 = y;
mask->x2 = x + w;
mask->y2 = y + h;
}
else
{
mask->bounds_known = FALSE;
}
mask->x1 = CLAMP (mask->x1, 0, gimp_item_get_width (GIMP_ITEM (mask)));
mask->y1 = CLAMP (mask->y1, 0, gimp_item_get_height (GIMP_ITEM (mask)));
mask->x2 = CLAMP (mask->x2, 0, gimp_item_get_width (GIMP_ITEM (mask)));
mask->y2 = CLAMP (mask->y2, 0, gimp_item_get_height (GIMP_ITEM (mask)));
gimp_drawable_update (GIMP_DRAWABLE (mask), x, y, w, h);
}
static void
gimp_image_map_tool_guide_moved (GimpGuide *guide,
const GParamSpec *pspec,
GimpImageMapTool *im_tool)
{
GimpImageMapOptions *options = GIMP_IMAGE_MAP_TOOL_GET_OPTIONS (im_tool);
GimpItem *item = GIMP_ITEM (im_tool->drawable);
gdouble position;
if (options->preview_alignment == GIMP_ALIGN_LEFT ||
options->preview_alignment == GIMP_ALIGN_RIGHT)
{
position = ((gdouble) (gimp_guide_get_position (guide) -
gimp_item_get_offset_x (item)) /
(gdouble) gimp_item_get_width (item));
}
else
{
position = ((gdouble) (gimp_guide_get_position (guide) -
gimp_item_get_offset_y (item)) /
(gdouble) gimp_item_get_height (item));
}
g_object_set (options,
"preview-position", CLAMP (position, 0.0, 1.0),
NULL);
}
/*
* Position the dropped item in the middle of the viewport.
*/
static void
gimp_display_shell_dnd_position_item (GimpDisplayShell *shell,
GimpImage *image,
GimpItem *item)
{
gint item_width = gimp_item_get_width (item);
gint item_height = gimp_item_get_height (item);
gint off_x, off_y;
if (item_width >= gimp_image_get_width (image) &&
item_height >= gimp_image_get_height (image))
{
off_x = (gimp_image_get_width (image) - item_width) / 2;
off_y = (gimp_image_get_height (image) - item_height) / 2;
}
else
{
gint x, y;
gint width, height;
gimp_display_shell_untransform_viewport (shell, &x, &y, &width, &height);
off_x = x + (width - item_width) / 2;
off_y = y + (height - item_height) / 2;
}
gimp_item_translate (item,
off_x - gimp_item_get_offset_x (item),
off_y - gimp_item_get_offset_y (item),
FALSE);
}
static void
gimp_cage_tool_image_map_update (GimpCageTool *ct)
{
GimpTool *tool = GIMP_TOOL (ct);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
GimpItem *item = GIMP_ITEM (tool->drawable);
gint x, y;
gint w, h;
gint off_x, off_y;
GeglRectangle visible;
gimp_display_shell_untransform_viewport (shell, &x, &y, &w, &h);
gimp_item_get_offset (item, &off_x, &off_y);
gimp_rectangle_intersect (x, y, w, h,
off_x,
off_y,
gimp_item_get_width (item),
gimp_item_get_height (item),
&visible.x,
&visible.y,
&visible.width,
&visible.height);
visible.x -= off_x;
visible.y -= off_y;
gimp_image_map_apply (ct->image_map, &visible);
}
void
gimp_drawable_foreground_extract (GimpDrawable *drawable,
GimpForegroundExtractMode mode,
GimpDrawable *mask,
GimpProgress *progress)
{
SioxState *state;
const gdouble sensitivity[3] = { SIOX_DEFAULT_SENSITIVITY_L,
SIOX_DEFAULT_SENSITIVITY_A,
SIOX_DEFAULT_SENSITIVITY_B };
g_return_if_fail (GIMP_IS_DRAWABLE (mask));
g_return_if_fail (mode == GIMP_FOREGROUND_EXTRACT_SIOX);
state =
gimp_drawable_foreground_extract_siox_init (drawable,
0, 0,
gimp_item_get_width (GIMP_ITEM (mask)),
gimp_item_get_height (GIMP_ITEM (mask)));
if (state)
{
gimp_drawable_foreground_extract_siox (mask, state,
SIOX_REFINEMENT_RECALCULATE,
SIOX_DEFAULT_SMOOTHNESS,
sensitivity,
FALSE,
progress);
gimp_drawable_foreground_extract_siox_done (state);
}
}
static void
gimp_image_rotate_item_offset (GimpImage *image,
GimpRotationType rotate_type,
GimpItem *item,
gint off_x,
gint off_y)
{
gint x = 0;
gint y = 0;
switch (rotate_type)
{
case GIMP_ROTATE_90:
x = gimp_image_get_height (image) - off_y - gimp_item_get_width (item);
y = off_x;
break;
case GIMP_ROTATE_270:
x = off_y;
y = gimp_image_get_width (image) - off_x - gimp_item_get_height (item);
break;
case GIMP_ROTATE_180:
return;
}
gimp_item_get_offset (item, &off_x, &off_y);
x -= off_x;
y -= off_y;
if (x || y)
gimp_item_translate (item, x, y, FALSE);
}
static void
gimp_tiling_update_strokes (GimpSymmetry *sym,
GimpDrawable *drawable,
GimpCoords *origin)
{
GimpTiling *tiling = GIMP_TILING (sym);
GList *strokes = NULL;
GimpCoords *coords;
gint width;
gint height;
gint startx = origin->x;
gint starty = origin->y;
gint x;
gint y;
gint x_count;
gint y_count;
g_list_free_full (sym->strokes, g_free);
sym->strokes = NULL;
width = gimp_item_get_width (GIMP_ITEM (drawable));
height = gimp_item_get_height (GIMP_ITEM (drawable));
if (origin->x > 0 && tiling->max_x == 0)
startx = origin->x - tiling->interval_x * (gint) (origin->x / tiling->interval_x + 1);
if (origin->y > 0 && tiling->max_y == 0)
{
starty = origin->y - tiling->interval_y * (gint) (origin->y / tiling->interval_y + 1);
if (tiling->shift > 0.0)
startx -= tiling->shift * (gint) (origin->y / tiling->interval_y + 1);
}
for (y_count = 0, y = starty; y < height + tiling->interval_y;
y_count++, y += tiling->interval_y)
{
if (tiling->max_y && y_count >= (gint) tiling->max_y)
break;
for (x_count = 0, x = startx; x < width + tiling->interval_x;
x_count++, x += tiling->interval_x)
{
if (tiling->max_x && x_count >= (gint) tiling->max_x)
break;
coords = g_memdup (origin, sizeof (GimpCoords));
coords->x = x;
coords->y = y;
strokes = g_list_prepend (strokes, coords);
if (tiling->interval_x < 1.0)
break;
}
if (tiling->max_x || startx + tiling->shift <= 0.0)
startx = startx + tiling->shift;
else
startx = startx - tiling->interval_x + tiling->shift;
if (tiling->interval_y < 1.0)
break;
}
sym->strokes = strokes;
g_signal_emit_by_name (sym, "strokes-updated", sym->image);
}
static void
gimp_text_layer_render_layout (GimpTextLayer *layer,
GimpTextLayout *layout)
{
GimpDrawable *drawable = GIMP_DRAWABLE (layer);
GimpItem *item = GIMP_ITEM (layer);
GeglBuffer *buffer;
cairo_t *cr;
cairo_surface_t *surface;
gint width;
gint height;
g_return_if_fail (gimp_drawable_has_alpha (drawable));
width = gimp_item_get_width (item);
height = gimp_item_get_height (item);
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
cr = cairo_create (surface);
gimp_text_layout_render (layout, cr, layer->text->base_dir, FALSE);
cairo_destroy (cr);
cairo_surface_flush (surface);
buffer = gimp_cairo_surface_create_buffer (surface);
gegl_buffer_copy (buffer, NULL,
gimp_drawable_get_buffer (drawable), NULL);
g_object_unref (buffer);
cairo_surface_destroy (surface);
gimp_drawable_update (drawable, 0, 0, width, height);
}
static void
gimp_channel_combine_clear_complement (GimpChannel *mask,
const GeglRectangle *rect)
{
gint width = gimp_item_get_width (GIMP_ITEM (mask));
gint height = gimp_item_get_height (GIMP_ITEM (mask));
gimp_channel_combine_clear (
mask,
GEGL_RECTANGLE (0,
0,
width,
rect->y));
gimp_channel_combine_clear (
mask,
GEGL_RECTANGLE (0,
rect->y + rect->height,
width,
height - (rect->y + rect->height)));
gimp_channel_combine_clear (
mask,
GEGL_RECTANGLE (0,
rect->y,
rect->x,
rect->height));
gimp_channel_combine_clear (
mask,
GEGL_RECTANGLE (rect->x + rect->width,
rect->y,
width - (rect->x + rect->width),
rect->height));
}
static TempBuf *
gimp_ink_get_paint_area (GimpPaintCore *paint_core,
GimpDrawable *drawable,
GimpPaintOptions *paint_options,
const GimpCoords *coords)
{
GimpInk *ink = GIMP_INK (paint_core);
gint x, y;
gint width, height;
gint dwidth, dheight;
gint x1, y1, x2, y2;
gint bytes;
bytes = gimp_drawable_bytes_with_alpha (drawable);
gimp_blob_bounds (ink->cur_blob, &x, &y, &width, &height);
dwidth = gimp_item_get_width (GIMP_ITEM (drawable));
dheight = gimp_item_get_height (GIMP_ITEM (drawable));
x1 = CLAMP (x / SUBSAMPLE - 1, 0, dwidth);
y1 = CLAMP (y / SUBSAMPLE - 1, 0, dheight);
x2 = CLAMP ((x + width) / SUBSAMPLE + 2, 0, dwidth);
y2 = CLAMP ((y + height) / SUBSAMPLE + 2, 0, dheight);
/* configure the canvas buffer */
if ((x2 - x1) && (y2 - y1))
paint_core->canvas_buf = temp_buf_resize (paint_core->canvas_buf, bytes,
x1, y1,
(x2 - x1), (y2 - y1));
else
return NULL;
return paint_core->canvas_buf;
}
static void
gimp_drawable_edit_fill_direct (GimpDrawable *drawable,
GimpFillOptions *options,
const gchar *undo_desc)
{
GeglBuffer *buffer;
GimpContext *context;
GimpLayerMode mode;
gint width;
gint height;
buffer = gimp_drawable_get_buffer (drawable);
context = GIMP_CONTEXT (options);
mode = gimp_context_get_paint_mode (context);
width = gimp_item_get_width (GIMP_ITEM (drawable));
height = gimp_item_get_height (GIMP_ITEM (drawable));
gimp_drawable_push_undo (drawable, undo_desc,
NULL, 0, 0, width, height);
if (! gimp_layer_mode_is_subtractive (mode))
gimp_fill_options_fill_buffer (options, drawable, buffer, 0, 0);
else
gimp_gegl_clear (buffer, NULL);
}
void
gimp_channel_combine_buffer (GimpChannel *mask,
GeglBuffer *add_on_buffer,
GimpChannelOps op,
gint off_x,
gint off_y)
{
GeglBuffer *buffer;
gint x, y, w, h;
g_return_if_fail (GIMP_IS_CHANNEL (mask));
g_return_if_fail (GEGL_IS_BUFFER (add_on_buffer));
buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
if (! gimp_gegl_mask_combine_buffer (buffer, add_on_buffer,
op, off_x, off_y))
return;
gimp_rectangle_intersect (off_x, off_y,
gegl_buffer_get_width (add_on_buffer),
gegl_buffer_get_height (add_on_buffer),
0, 0,
gimp_item_get_width (GIMP_ITEM (mask)),
gimp_item_get_height (GIMP_ITEM (mask)),
&x, &y, &w, &h);
mask->bounds_known = FALSE;
gimp_drawable_update (GIMP_DRAWABLE (mask), x, y, w, h);
}
static BoundSeg *
gimp_region_select_tool_calculate (GimpRegionSelectTool *region_sel,
GimpDisplay *display,
gint *n_segs)
{
GimpDisplayShell *shell = gimp_display_get_shell (display);
BoundSeg *segs;
PixelRegion maskPR;
gimp_display_shell_set_override_cursor (shell, GDK_WATCH);
if (region_sel->region_mask)
g_object_unref (region_sel->region_mask);
region_sel->region_mask =
GIMP_REGION_SELECT_TOOL_GET_CLASS (region_sel)->get_mask (region_sel,
display);
if (! region_sel->region_mask)
{
gimp_display_shell_unset_override_cursor (shell);
*n_segs = 0;
return NULL;
}
/* calculate and allocate a new segment array which represents the
* boundary of the contiguous region
*/
pixel_region_init (&maskPR,
gimp_drawable_get_tiles (GIMP_DRAWABLE (region_sel->region_mask)),
0, 0,
gimp_item_get_width (GIMP_ITEM (region_sel->region_mask)),
gimp_item_get_height (GIMP_ITEM (region_sel->region_mask)),
FALSE);
segs = boundary_find (&maskPR, BOUNDARY_WITHIN_BOUNDS,
0, 0,
gimp_item_get_width (GIMP_ITEM (region_sel->region_mask)),
gimp_item_get_height (GIMP_ITEM (region_sel->region_mask)),
BOUNDARY_HALF_WAY,
n_segs);
gimp_display_shell_unset_override_cursor (shell);
return segs;
}
void
gimp_image_resize_to_layers (GimpImage *image,
GimpContext *context,
GimpProgress *progress)
{
GList *list;
GimpItem *item;
gint x, y;
gint width, height;
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (GIMP_IS_CONTEXT (context));
g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
list = gimp_image_get_layer_iter (image);
if (! list)
return;
/* figure out starting values */
item = list->data;
x = gimp_item_get_offset_x (item);
y = gimp_item_get_offset_y (item);
width = gimp_item_get_width (item);
height = gimp_item_get_height (item);
/* Respect all layers */
for (list = g_list_next (list); list; list = g_list_next (list))
{
item = list->data;
gimp_rectangle_union (x, y,
width, height,
gimp_item_get_offset_x (item),
gimp_item_get_offset_y (item),
gimp_item_get_width (item),
gimp_item_get_height (item),
&x, &y,
&width, &height);
}
gimp_image_resize (image, context,
width, height, -x, -y,
progress);
}
gboolean
gimp_item_get_popup_size (GimpViewable *viewable,
gint width,
gint height,
gboolean dot_for_dot,
gint *popup_width,
gint *popup_height)
{
GimpItem *item = GIMP_ITEM (viewable);
GimpImage *image = gimp_item_get_image (item);
if (image && ! image->gimp->config->layer_previews)
return FALSE;
if (gimp_item_get_width (item) > width ||
gimp_item_get_height (item) > height)
{
gboolean scaling_up;
gdouble xres = 1.0;
gdouble yres = 1.0;
if (image)
gimp_image_get_resolution (image, &xres, &yres);
gimp_viewable_calc_preview_size (gimp_item_get_width (item),
gimp_item_get_height (item),
width * 2,
height * 2,
dot_for_dot,
xres,
yres,
popup_width,
popup_height,
&scaling_up);
if (scaling_up)
{
*popup_width = gimp_item_get_width (item);
*popup_height = gimp_item_get_height (item);
}
return TRUE;
}
return FALSE;
}
void
gimp_channel_select_round_rect (GimpChannel *channel,
gint x,
gint y,
gint w,
gint h,
gdouble corner_radius_x,
gdouble corner_radius_y,
GimpChannelOps op,
gboolean antialias,
gboolean feather,
gdouble feather_radius_x,
gdouble feather_radius_y,
gboolean push_undo)
{
g_return_if_fail (GIMP_IS_CHANNEL (channel));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (channel)));
if (push_undo)
gimp_channel_push_undo (channel, C_("undo-type", "Rounded Rectangle Select"));
/* if applicable, replace the current selection */
if (op == GIMP_CHANNEL_OP_REPLACE)
gimp_channel_clear (channel, NULL, FALSE);
/* if feathering for rect, make a new mask with the
* rectangle and feather that with the old mask
*/
if (feather || op == GIMP_CHANNEL_OP_INTERSECT)
{
GimpItem *item = GIMP_ITEM (channel);
GeglBuffer *add_on;
add_on = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item)),
babl_format ("Y float"));
gimp_gegl_mask_combine_ellipse_rect (add_on, GIMP_CHANNEL_OP_ADD,
x, y, w, h,
corner_radius_x, corner_radius_y,
antialias);
if (feather)
gimp_gegl_apply_feather (add_on, NULL, NULL, add_on, NULL,
feather_radius_x,
feather_radius_y);
gimp_channel_combine_buffer (channel, add_on, op, 0, 0);
g_object_unref (add_on);
}
else
{
gimp_channel_combine_ellipse_rect (channel, op, x, y, w, h,
corner_radius_x, corner_radius_y,
antialias);
}
}
/**
* gimp_projection_initialize:
* @proj: A #GimpProjection.
* @x:
* @y:
* @w:
* @h:
*
* This function determines whether a visible layer with combine mode
* Normal provides complete coverage over the specified area. If not,
* the projection is initialized to transparent black.
*/
static void
gimp_projection_initialize (GimpProjection *proj,
gint x,
gint y,
gint w,
gint h)
{
GList *list;
gint proj_off_x;
gint proj_off_y;
gboolean coverage = FALSE;
gimp_projectable_get_offset (proj->projectable, &proj_off_x, &proj_off_y);
for (list = gimp_projectable_get_layers (proj->projectable);
list;
list = g_list_next (list))
{
GimpLayer *layer = list->data;
GimpDrawable *drawable = GIMP_DRAWABLE (layer);
GimpItem *item = GIMP_ITEM (layer);
gint off_x, off_y;
gimp_item_get_offset (item, &off_x, &off_y);
/* subtract the projectable's offsets because the list of
* update areas is in tile-pyramid coordinates, but our
* external API is always in terms of image coordinates.
*/
off_x -= proj_off_x;
off_y -= proj_off_y;
if (gimp_item_get_visible (item) &&
! gimp_drawable_has_alpha (drawable) &&
! gimp_layer_get_mask (layer) &&
gimp_layer_get_mode (layer) == GIMP_NORMAL_MODE &&
gimp_layer_get_opacity (layer) == GIMP_OPACITY_OPAQUE &&
off_x <= x &&
off_y <= y &&
(off_x + gimp_item_get_width (item)) >= (x + w) &&
(off_y + gimp_item_get_height (item)) >= (y + h))
{
coverage = TRUE;
break;
}
}
if (! coverage)
{
PixelRegion region;
pixel_region_init (®ion,
gimp_pickable_get_tiles (GIMP_PICKABLE (proj)),
x, y, w, h, TRUE);
clear_region (®ion);
}
}
GimpTempBuf *
gimp_drawable_get_sub_preview (GimpDrawable *drawable,
gint src_x,
gint src_y,
gint src_width,
gint src_height,
gint dest_width,
gint dest_height)
{
GimpItem *item;
GimpImage *image;
GeglBuffer *buffer;
GimpTempBuf *preview;
gdouble scale;
gint scaled_x;
gint scaled_y;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (src_x >= 0, NULL);
g_return_val_if_fail (src_y >= 0, NULL);
g_return_val_if_fail (src_width > 0, NULL);
g_return_val_if_fail (src_height > 0, NULL);
g_return_val_if_fail (dest_width > 0, NULL);
g_return_val_if_fail (dest_height > 0, NULL);
item = GIMP_ITEM (drawable);
g_return_val_if_fail ((src_x + src_width) <= gimp_item_get_width (item), NULL);
g_return_val_if_fail ((src_y + src_height) <= gimp_item_get_height (item), NULL);
image = gimp_item_get_image (item);
if (! image->gimp->config->layer_previews)
return NULL;
buffer = gimp_drawable_get_buffer (drawable);
preview = gimp_temp_buf_new (dest_width, dest_height,
gimp_drawable_get_preview_format (drawable));
scale = MIN ((gdouble) dest_width / (gdouble) src_width,
(gdouble) dest_height / (gdouble) src_height);
scaled_x = RINT ((gdouble) src_x * scale);
scaled_y = RINT ((gdouble) src_y * scale);
gegl_buffer_get (buffer,
GEGL_RECTANGLE (scaled_x, scaled_y, dest_width, dest_height),
scale,
gimp_temp_buf_get_format (preview),
gimp_temp_buf_get_data (preview),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_CLAMP);
return preview;
}
static GeglBuffer *
gimp_ink_get_paint_buffer (GimpPaintCore *paint_core,
GimpDrawable *drawable,
GimpPaintOptions *paint_options,
const GimpCoords *coords,
gint *paint_buffer_x,
gint *paint_buffer_y)
{
GimpInk *ink = GIMP_INK (paint_core);
gint x, y;
gint width, height;
gint dwidth, dheight;
gint x1, y1, x2, y2;
gimp_blob_bounds (ink->cur_blob, &x, &y, &width, &height);
dwidth = gimp_item_get_width (GIMP_ITEM (drawable));
dheight = gimp_item_get_height (GIMP_ITEM (drawable));
x1 = CLAMP (x / SUBSAMPLE - 1, 0, dwidth);
y1 = CLAMP (y / SUBSAMPLE - 1, 0, dheight);
x2 = CLAMP ((x + width) / SUBSAMPLE + 2, 0, dwidth);
y2 = CLAMP ((y + height) / SUBSAMPLE + 2, 0, dheight);
/* configure the canvas buffer */
if ((x2 - x1) && (y2 - y1))
{
GimpTempBuf *temp_buf;
const Babl *format;
if (gimp_drawable_get_linear (drawable))
format = babl_format ("RGBA float");
else
format = babl_format ("R'G'B'A float");
temp_buf = gimp_temp_buf_new ((x2 - x1), (y2 - y1),
format);
*paint_buffer_x = x1;
*paint_buffer_y = y1;
if (paint_core->paint_buffer)
g_object_unref (paint_core->paint_buffer);
paint_core->paint_buffer = gimp_temp_buf_create_buffer (temp_buf);
gimp_temp_buf_unref (temp_buf);
return paint_core->paint_buffer;
}
return NULL;
}
gboolean
floating_sel_to_layer (GimpLayer *layer,
GError **error)
{
GimpItem *item;
GimpImage *image;
g_return_val_if_fail (GIMP_IS_LAYER (layer), FALSE);
g_return_val_if_fail (gimp_layer_is_floating_sel (layer), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
item = GIMP_ITEM (layer);
image = gimp_item_get_image (item);
/* Check if the floating layer belongs to a channel */
if (GIMP_IS_CHANNEL (gimp_layer_get_floating_sel_drawable (layer)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("Cannot create a new layer from the floating "
"selection because it belongs to a layer mask "
"or channel."));
return FALSE;
}
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_FS_TO_LAYER,
C_("undo-type", "Floating Selection to Layer"));
gimp_image_undo_push_fs_to_layer (image, NULL, layer);
gimp_drawable_detach_floating_sel (gimp_layer_get_floating_sel_drawable (layer));
gimp_layer_set_floating_sel_drawable (layer, NULL);
gimp_item_set_visible (item, TRUE, TRUE);
gimp_layer_set_lock_alpha (layer, FALSE, TRUE);
gimp_image_undo_group_end (image);
/* When the floating selection is converted to/from a normal layer
* it does something resembling a name change, so emit the
* "name-changed" signal
*/
gimp_object_name_changed (GIMP_OBJECT (layer));
gimp_drawable_update (GIMP_DRAWABLE (layer),
0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item));
return TRUE;
}
static void
offset_half_y_callback (GtkWidget *widget,
OffsetDialog *dialog)
{
GimpImage *image = dialog->image;
if (image)
{
GimpItem *item = GIMP_ITEM (gimp_image_get_active_drawable (image));
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (dialog->off_se),
1, gimp_item_get_height (item) / 2);
}
}
void
gimp_channel_select_buffer (GimpChannel *channel,
const gchar *undo_desc,
GeglBuffer *add_on,
gint offset_x,
gint offset_y,
GimpChannelOps op,
gboolean feather,
gdouble feather_radius_x,
gdouble feather_radius_y)
{
g_return_if_fail (GIMP_IS_CHANNEL (channel));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (channel)));
g_return_if_fail (undo_desc != NULL);
g_return_if_fail (GEGL_IS_BUFFER (add_on));
gimp_channel_push_undo (channel, undo_desc);
/* if applicable, replace the current selection */
if (op == GIMP_CHANNEL_OP_REPLACE)
gimp_channel_clear (channel, NULL, FALSE);
if (feather || op == GIMP_CHANNEL_OP_INTERSECT)
{
GimpItem *item = GIMP_ITEM (channel);
GeglBuffer *add_on2;
add_on2 = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item)),
babl_format ("Y float"));
gimp_gegl_mask_combine_buffer (add_on2, add_on,
GIMP_CHANNEL_OP_ADD,
offset_x, offset_y);
if (feather)
gimp_gegl_apply_feather (add_on2, NULL, NULL, add_on2, NULL,
feather_radius_x,
feather_radius_y);
gimp_channel_combine_buffer (channel, add_on2, op, 0, 0);
g_object_unref (add_on2);
}
else
{
gimp_channel_combine_buffer (channel, add_on, op, offset_x, offset_y);
}
}
void
gimp_drawable_foreground_extract_siox (GimpDrawable *mask,
SioxState *state,
SioxRefinementType refinement,
gint smoothness,
const gdouble sensitivity[3],
gboolean multiblob,
GimpProgress *progress)
{
GeglBuffer *buffer;
gint x1, y1;
gint x2, y2;
g_return_if_fail (GIMP_IS_DRAWABLE (mask));
g_return_if_fail (babl_format_get_bytes_per_pixel (gimp_drawable_get_format (mask)) == 1);
g_return_if_fail (state != NULL);
g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
if (progress)
gimp_progress_start (progress, _("Foreground Extraction"), FALSE);
if (GIMP_IS_CHANNEL (mask))
{
gimp_channel_bounds (GIMP_CHANNEL (mask), &x1, &y1, &x2, &y2);
}
else
{
x1 = 0;
y1 = 0;
x2 = gimp_item_get_width (GIMP_ITEM (mask));
y2 = gimp_item_get_height (GIMP_ITEM (mask));
}
buffer = gimp_drawable_get_buffer (mask);
siox_foreground_extract (state, refinement,
gimp_gegl_buffer_get_tiles (buffer),
x1, y1, x2, y2,
smoothness, sensitivity, multiblob,
(SioxProgressFunc) gimp_progress_set_value,
progress);
if (progress)
gimp_progress_end (progress);
gimp_drawable_update (mask, x1, y1, x2, y2);
}
void
gimp_item_get_preview_size (GimpViewable *viewable,
gint size,
gboolean is_popup,
gboolean dot_for_dot,
gint *width,
gint *height)
{
GimpItem *item = GIMP_ITEM (viewable);
GimpImage *image = gimp_item_get_image (item);
if (image && ! image->gimp->config->layer_previews && ! is_popup)
{
*width = size;
*height = size;
return;
}
if (image && ! is_popup)
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
gimp_viewable_calc_preview_size (gimp_image_get_width (image),
gimp_image_get_height (image),
size,
size,
dot_for_dot,
xres,
yres,
width,
height,
NULL);
}
else
{
gimp_viewable_calc_preview_size (gimp_item_get_width (item),
gimp_item_get_height (item),
size,
size,
dot_for_dot, 1.0, 1.0,
width,
height,
NULL);
}
}
static void
gimp_floating_sel_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum)
{
GimpFloatingSelUndo *floating_sel_undo = GIMP_FLOATING_SEL_UNDO (undo);
GimpLayer *floating_layer = GIMP_LAYER (GIMP_ITEM_UNDO (undo)->item);
GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
switch (undo->undo_type)
{
case GIMP_UNDO_FS_TO_LAYER:
if (undo_mode == GIMP_UNDO_MODE_UNDO)
{
/* Update the preview for the floating sel */
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (floating_layer));
gimp_layer_set_floating_sel_drawable (floating_layer,
floating_sel_undo->drawable);
gimp_image_set_active_layer (undo->image, floating_layer);
gimp_drawable_attach_floating_sel (gimp_layer_get_floating_sel_drawable (floating_layer),
floating_layer);
}
else
{
gimp_drawable_detach_floating_sel (gimp_layer_get_floating_sel_drawable (floating_layer));
gimp_layer_set_floating_sel_drawable (floating_layer, NULL);
}
/* When the floating selection is converted to/from a normal
* layer it does something resembling a name change, so emit the
* "name-changed" signal
*/
gimp_object_name_changed (GIMP_OBJECT (floating_layer));
gimp_drawable_update (GIMP_DRAWABLE (floating_layer),
0, 0,
gimp_item_get_width (GIMP_ITEM (floating_layer)),
gimp_item_get_height (GIMP_ITEM (floating_layer)));
break;
default:
g_assert_not_reached ();
}
}
void
gimp_channel_select_scan_convert (GimpChannel *channel,
const gchar *undo_desc,
GimpScanConvert *scan_convert,
gint offset_x,
gint offset_y,
GimpChannelOps op,
gboolean antialias,
gboolean feather,
gdouble feather_radius_x,
gdouble feather_radius_y,
gboolean push_undo)
{
GimpItem *item;
GeglBuffer *add_on;
g_return_if_fail (GIMP_IS_CHANNEL (channel));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (channel)));
g_return_if_fail (undo_desc != NULL);
g_return_if_fail (scan_convert != NULL);
if (push_undo)
gimp_channel_push_undo (channel, undo_desc);
/* if applicable, replace the current selection */
if (op == GIMP_CHANNEL_OP_REPLACE)
gimp_channel_clear (channel, NULL, FALSE);
item = GIMP_ITEM (channel);
add_on = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
gimp_item_get_width (item),
gimp_item_get_height (item)),
babl_format ("Y float"));
gimp_scan_convert_render (scan_convert, add_on,
offset_x, offset_y, antialias);
if (feather)
gimp_gegl_apply_feather (add_on, NULL, NULL, add_on, NULL,
feather_radius_x,
feather_radius_y);
gimp_channel_combine_buffer (channel, add_on, op, 0, 0);
g_object_unref (add_on);
}
static void
gimp_image_map_tool_add_guide (GimpImageMapTool *im_tool)
{
GimpImageMapOptions *options = GIMP_IMAGE_MAP_TOOL_GET_OPTIONS (im_tool);
GimpItem *item;
GimpImage *image;
GimpOrientationType orientation;
gint position;
if (im_tool->percent_guide)
return;
item = GIMP_ITEM (im_tool->drawable);
image = gimp_item_get_image (item);
if (options->preview_alignment == GIMP_ALIGN_LEFT ||
options->preview_alignment == GIMP_ALIGN_RIGHT)
{
orientation = GIMP_ORIENTATION_VERTICAL;
position = (gimp_item_get_offset_x (item) +
gimp_item_get_width (item) *
options->preview_position);
}
else
{
orientation = GIMP_ORIENTATION_HORIZONTAL;
position = (gimp_item_get_offset_y (item) +
gimp_item_get_height (item) *
options->preview_position);
}
im_tool->percent_guide = gimp_guide_custom_new (orientation,
image->gimp->next_guide_ID++,
GIMP_GUIDE_STYLE_SPLIT_VIEW);
gimp_image_add_guide (image, im_tool->percent_guide, position);
g_signal_connect (im_tool->percent_guide, "removed",
G_CALLBACK (gimp_image_map_tool_guide_removed),
im_tool);
g_signal_connect (im_tool->percent_guide, "notify::position",
G_CALLBACK (gimp_image_map_tool_guide_moved),
im_tool);
}
/*
* Position the dropped item in the middle of the viewport.
*/
static void
gimp_display_shell_dnd_position_item (GimpDisplayShell *shell,
GimpItem *item)
{
gint x, y;
gint width, height;
gint off_x, off_y;
gimp_display_shell_untransform_viewport (shell, &x, &y, &width, &height);
gimp_item_get_offset (item, &off_x, &off_y);
off_x = x + (width - gimp_item_get_width (item)) / 2 - off_x;
off_y = y + (height - gimp_item_get_height (item)) / 2 - off_y;
gimp_item_translate (item, off_x, off_y, FALSE);
}