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gimp/app/tools/gimpbucketfilltool.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "base/pixel-region.h"
#include "base/temp-buf.h"
#include "base/tile-manager.h"
#include "paint-funcs/paint-funcs.h"
#include "core/gimp.h"
#include "core/gimpchannel.h"
#include "core/gimpcontext.h"
#include "core/gimpdrawable.h"
#include "core/gimpimage.h"
#include "core/gimpimage-mask.h"
#include "core/gimppattern.h"
#include "pdb/procedural_db.h"
#include "gimpbucketfilltool.h"
#include "gimpfuzzyselecttool.h"
#include "gimptool.h"
#include "paint_options.h"
#include "tool_manager.h"
#include "gdisplay.h"
#include "gimprc.h"
#include "undo.h"
#include "libgimp/gimpintl.h"
#define WANT_BUCKET_FILL_BITS
#include "icons.h"
typedef struct _BucketOptions BucketOptions;
struct _BucketOptions
{
PaintOptions paint_options;
gboolean sample_merged;
gboolean sample_merged_d;
GtkWidget *sample_merged_w;
gdouble threshold;
/* gdouble threshold_d; (from gimprc) */
GtkObject *threshold_w;
BucketFillMode fill_mode;
BucketFillMode fill_mode_d;
GtkWidget *fill_mode_w[3];
};
/* the bucket fill tool options */
static BucketOptions *bucket_options = NULL;
static GimpToolClass *parent_class = NULL;
/* local function prototypes */
static void gimp_bucket_fill_tool_class_init (GimpBucketFillToolClass *klass);
static void gimp_bucket_fill_tool_init (GimpBucketFillTool *bucket_fill_tool);
static void gimp_bucket_fill_tool_destroy (GtkObject *object);
static BucketOptions * bucket_options_new (void);
static void bucket_options_reset (GimpToolOptions *tool_options);
static void gimp_bucket_fill_tool_button_press (GimpTool *tool,
GdkEventButton *bevent,
GDisplay *gdisp);
static void gimp_bucket_fill_tool_button_release (GimpTool *tool,
GdkEventButton *bevent,
GDisplay *gdisp);
static void gimp_bucket_fill_tool_cursor_update (GimpTool *tool,
GdkEventMotion *mevent,
GDisplay *gdisp);
static void gimp_bucket_fill_tool_modifier_key (GimpTool *tool,
GdkEventKey *kevent,
GDisplay *gdisp);
static void bucket_fill_line_color (guchar *,
guchar *,
guchar *,
gboolean ,
gint ,
gint );
static void bucket_fill_line_pattern (guchar *,
guchar *,
TempBuf *,
gboolean ,
gint ,
gint ,
gint ,
gint );
/* functions */
void
gimp_bucket_fill_tool_register (Gimp *gimp)
{
tool_manager_register_tool (gimp,
GIMP_TYPE_BUCKET_FILL_TOOL,
TRUE,
"gimp:bucket_fill_tool",
_("Bucket Fill"),
_("Fill with a color or pattern"),
N_("/Tools/Paint Tools/Bucket Fill"), "<shift>B",
NULL, "tools/bucket_fill.html",
(const gchar **) bucket_fill_bits);
}
GtkType
gimp_bucket_fill_tool_get_type (void)
{
static GtkType tool_type = 0;
if (! tool_type)
{
GtkTypeInfo tool_info =
{
"GimpBucketFillTool",
sizeof (GimpBucketFillTool),
sizeof (GimpBucketFillToolClass),
(GtkClassInitFunc) gimp_bucket_fill_tool_class_init,
(GtkObjectInitFunc) gimp_bucket_fill_tool_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
tool_type = gtk_type_unique (GIMP_TYPE_TOOL, &tool_info);
}
return tool_type;
}
static void
gimp_bucket_fill_tool_class_init (GimpBucketFillToolClass *klass)
{
GtkObjectClass *object_class;
GimpToolClass *tool_class;
object_class = (GtkObjectClass *) klass;
tool_class = (GimpToolClass *) klass;
parent_class = gtk_type_class (GIMP_TYPE_TOOL);
object_class->destroy = gimp_bucket_fill_tool_destroy;
tool_class->button_press = gimp_bucket_fill_tool_button_press;
tool_class->button_release = gimp_bucket_fill_tool_button_release;
tool_class->modifier_key = gimp_bucket_fill_tool_modifier_key;
tool_class->cursor_update = gimp_bucket_fill_tool_cursor_update;
}
static void
gimp_bucket_fill_tool_init (GimpBucketFillTool *bucket_fill_tool)
{
GimpTool *tool;
tool = GIMP_TOOL (bucket_fill_tool);
if (! bucket_options)
{
bucket_options = bucket_options_new ();
tool_manager_register_tool_options (GIMP_TYPE_BUCKET_FILL_TOOL,
(GimpToolOptions *) bucket_options);
bucket_options_reset ((GimpToolOptions *) bucket_options);
}
tool->tool_cursor = GIMP_BUCKET_FILL_TOOL_CURSOR;
tool->scroll_lock = TRUE; /* Disallow scrolling */
}
static void
gimp_bucket_fill_tool_destroy (GtkObject *object)
{
if (GTK_OBJECT_CLASS (parent_class)->destroy)
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
bucket_options_reset (GimpToolOptions *tool_options)
{
BucketOptions *options;
options = (BucketOptions *) tool_options;
paint_options_reset (tool_options);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_merged_w),
options->sample_merged_d);
gtk_adjustment_set_value (GTK_ADJUSTMENT (options->threshold_w),
gimprc.default_threshold);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->fill_mode_w[options->fill_mode_d]), TRUE);
}
static BucketOptions *
bucket_options_new (void)
{
BucketOptions *options;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *scale;
GtkWidget *frame;
options = g_new0 (BucketOptions, 1);
paint_options_init ((PaintOptions *) options,
GIMP_TYPE_BUCKET_FILL_TOOL,
bucket_options_reset);
options->sample_merged = options->sample_merged_d = FALSE;
options->threshold = gimprc.default_threshold;
options->fill_mode = options->fill_mode_d = FG_BUCKET_FILL;
/* the main vbox */
vbox = ((GimpToolOptions *) options)->main_vbox;
/* the sample merged toggle */
options->sample_merged_w =
gtk_check_button_new_with_label (_("Sample Merged"));
gtk_signal_connect (GTK_OBJECT (options->sample_merged_w), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&options->sample_merged);
gtk_box_pack_start (GTK_BOX (vbox), options->sample_merged_w, FALSE, FALSE, 0);
gtk_widget_show (options->sample_merged_w);
/* the threshold scale */
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
label = gtk_label_new (_("Threshold:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
options->threshold_w =
gtk_adjustment_new (gimprc.default_threshold, 0.0, 255.0, 1.0, 1.0, 0.0);
scale = gtk_hscale_new (GTK_ADJUSTMENT (options->threshold_w));
gtk_box_pack_start (GTK_BOX (hbox), scale, TRUE, TRUE, 0);
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
gtk_signal_connect (GTK_OBJECT (options->threshold_w), "value_changed",
GTK_SIGNAL_FUNC (gimp_double_adjustment_update),
&options->threshold);
gtk_widget_show (scale);
gtk_widget_show (hbox);
/* fill type */
frame =
gimp_radio_group_new2 (TRUE, _("Fill Type"),
G_CALLBACK (gimp_radio_button_update),
&options->fill_mode,
GINT_TO_POINTER (options->fill_mode),
_("FG Color Fill"),
GINT_TO_POINTER (FG_BUCKET_FILL),
&options->fill_mode_w[0],
_("BG Color Fill"),
GINT_TO_POINTER (BG_BUCKET_FILL),
&options->fill_mode_w[1],
_("Pattern Fill"),
GINT_TO_POINTER (PATTERN_BUCKET_FILL),
&options->fill_mode_w[2],
NULL);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
return options;
}
/* bucket fill action functions */
static void
gimp_bucket_fill_tool_button_press (GimpTool *tool,
GdkEventButton *bevent,
GDisplay *gdisp)
{
GimpBucketFillTool *bucket_tool;
gboolean use_offsets;
bucket_tool = GIMP_BUCKET_FILL_TOOL (tool);
use_offsets = (bucket_options->sample_merged) ? FALSE : TRUE;
gdisplay_untransform_coords (gdisp, bevent->x, bevent->y,
&bucket_tool->target_x,
&bucket_tool->target_y, FALSE, use_offsets);
/* Make the tool active and set the gdisplay which owns it */
gdk_pointer_grab (gdisp->canvas->window, FALSE,
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL, NULL, bevent->time);
/* Make the tool active and set the gdisplay which owns it */
tool->gdisp = gdisp;
tool->state = ACTIVE;
}
static void
gimp_bucket_fill_tool_button_release (GimpTool *tool,
GdkEventButton *bevent,
GDisplay *gdisp)
{
GimpBucketFillTool *bucket_tool;
Argument *return_vals;
gint nreturn_vals;
bucket_tool = GIMP_BUCKET_FILL_TOOL (tool);
gdk_pointer_ungrab (bevent->time);
gdk_flush ();
/* if the 3rd button isn't pressed, fill the selected region */
if (! (bevent->state & GDK_BUTTON3_MASK))
{
GimpContext *context;
context = gimp_get_current_context (gdisp->gimage->gimp);
return_vals =
procedural_db_run_proc (gdisp->gimage->gimp,
"gimp_bucket_fill",
&nreturn_vals,
GIMP_PDB_DRAWABLE, gimp_drawable_get_ID (gimp_image_active_drawable (gdisp->gimage)),
GIMP_PDB_INT32, (gint32) bucket_options->fill_mode,
GIMP_PDB_INT32, (gint32) gimp_context_get_paint_mode (context),
GIMP_PDB_FLOAT, (gdouble) gimp_context_get_opacity (context) * 100,
GIMP_PDB_FLOAT, (gdouble) bucket_options->threshold,
GIMP_PDB_INT32, (gint32) bucket_options->sample_merged,
GIMP_PDB_FLOAT, (gdouble) bucket_tool->target_x,
GIMP_PDB_FLOAT, (gdouble) bucket_tool->target_y,
GIMP_PDB_END);
if (return_vals && return_vals[0].value.pdb_int == GIMP_PDB_SUCCESS)
gdisplays_flush ();
else
g_message (_("Bucket Fill operation failed."));
procedural_db_destroy_args (return_vals, nreturn_vals);
}
tool->state = INACTIVE;
}
static void
gimp_bucket_fill_tool_cursor_update (GimpTool *tool,
GdkEventMotion *mevent,
GDisplay *gdisp)
{
GimpLayer *layer;
GdkCursorType ctype = GDK_TOP_LEFT_ARROW;
GimpCursorModifier cmodifier = GIMP_CURSOR_MODIFIER_NONE;
gint x, y;
gint off_x, off_y;
gdisplay_untransform_coords (gdisp, mevent->x, mevent->y,
&x, &y, FALSE, FALSE);
if ((layer = gimp_image_get_active_layer (gdisp->gimage)))
{
gimp_drawable_offsets (GIMP_DRAWABLE (layer), &off_x, &off_y);
if (x >= off_x && y >= off_y &&
x < (off_x + gimp_drawable_width (GIMP_DRAWABLE (layer))) &&
y < (off_y + gimp_drawable_height (GIMP_DRAWABLE (layer))))
{
/* One more test--is there a selected region?
* if so, is cursor inside?
*/
if (gimage_mask_is_empty (gdisp->gimage) ||
gimage_mask_value (gdisp->gimage, x, y))
{
ctype = GIMP_MOUSE_CURSOR;
switch (bucket_options->fill_mode)
{
case FG_BUCKET_FILL:
cmodifier = GIMP_CURSOR_MODIFIER_FOREGROUND;
break;
case BG_BUCKET_FILL:
cmodifier = GIMP_CURSOR_MODIFIER_BACKGROUND;
break;
case PATTERN_BUCKET_FILL:
cmodifier = GIMP_CURSOR_MODIFIER_PATTERN;
break;
}
}
}
}
gdisplay_install_tool_cursor (gdisp,
ctype,
GIMP_BUCKET_FILL_TOOL_CURSOR,
cmodifier);
}
static void
gimp_bucket_fill_tool_modifier_key (GimpTool *tool,
GdkEventKey *kevent,
GDisplay *gdisp)
{
switch (kevent->keyval)
{
case GDK_Alt_L: case GDK_Alt_R:
break;
case GDK_Shift_L: case GDK_Shift_R:
break;
case GDK_Control_L: case GDK_Control_R:
switch (bucket_options->fill_mode)
{
case FG_BUCKET_FILL:
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (bucket_options->fill_mode_w[BG_BUCKET_FILL]), TRUE);
break;
case BG_BUCKET_FILL:
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (bucket_options->fill_mode_w[FG_BUCKET_FILL]), TRUE);
break;
default:
break;
}
break;
}
}
void
bucket_fill (GimpImage *gimage,
GimpDrawable *drawable,
BucketFillMode fill_mode,
gint paint_mode,
gdouble opacity,
gdouble threshold,
gboolean sample_merged,
gdouble x,
gdouble y)
{
TileManager *buf_tiles;
PixelRegion bufPR, maskPR;
GimpChannel *mask = NULL;
gint bytes;
gboolean has_alpha;
gint x1, y1, x2, y2;
guchar col [MAX_CHANNELS];
guchar *d1, *d2;
GimpPattern *pattern;
TempBuf *pat_buf;
gboolean new_buf = FALSE;
pat_buf = NULL;
if (fill_mode == FG_BUCKET_FILL)
gimp_image_get_foreground (gimage, drawable, col);
else if (fill_mode == BG_BUCKET_FILL)
gimp_image_get_background (gimage, drawable, col);
else if (fill_mode == PATTERN_BUCKET_FILL)
{
pattern = gimp_context_get_pattern (gimp_get_current_context (gimage->gimp));
if (!pattern)
{
g_message (_("No available patterns for this operation."));
return;
}
/* If the pattern doesn't match the image in terms of color type,
* transform it. (ie pattern is RGB, image is indexed)
*/
if (((pattern->mask->bytes == 3) && !gimp_drawable_is_rgb (drawable)) ||
((pattern->mask->bytes == 1) && !gimp_drawable_is_gray (drawable)))
{
int size;
if ((pattern->mask->bytes == 1) && gimp_drawable_is_rgb (drawable))
pat_buf = temp_buf_new (pattern->mask->width, pattern->mask->height,
3, 0, 0, NULL);
else
pat_buf = temp_buf_new (pattern->mask->width, pattern->mask->height,
1, 0, 0, NULL);
d1 = temp_buf_data (pattern->mask);
d2 = temp_buf_data (pat_buf);
size = pattern->mask->width * pattern->mask->height;
while (size--)
{
gimp_image_transform_color (gimage, drawable, d1, d2,
(pattern->mask->bytes == 3) ? RGB : GRAY);
d1 += pattern->mask->bytes;
d2 += pat_buf->bytes;
}
new_buf = TRUE;
}
else
pat_buf = pattern->mask;
}
gimp_set_busy (gimage->gimp);
bytes = gimp_drawable_bytes (drawable);
has_alpha = gimp_drawable_has_alpha (drawable);
/* If there is no selection mask, the do a seed bucket
* fill...To do this, calculate a new contiguous region
*/
if (! gimp_drawable_mask_bounds (drawable, &x1, &y1, &x2, &y2))
{
mask = find_contiguous_region (gimage, drawable, TRUE, (int) threshold,
(int) x, (int) y, sample_merged);
gimp_channel_bounds (mask, &x1, &y1, &x2, &y2);
/* make sure we handle the mask correctly if it was sample-merged */
if (sample_merged)
{
gint off_x, off_y;
/* Limit the channel bounds to the drawable's extents */
gimp_drawable_offsets (drawable, &off_x, &off_y);
x1 = CLAMP (x1, off_x, (off_x + gimp_drawable_width (drawable)));
y1 = CLAMP (y1, off_y, (off_y + gimp_drawable_height (drawable)));
x2 = CLAMP (x2, off_x, (off_x + gimp_drawable_width (drawable)));
y2 = CLAMP (y2, off_y, (off_y + gimp_drawable_height (drawable)));
pixel_region_init (&maskPR, gimp_drawable_data (GIMP_DRAWABLE (mask)),
x1, y1, (x2 - x1), (y2 - y1), TRUE);
/* translate mask bounds to drawable coords */
x1 -= off_x;
y1 -= off_y;
x2 -= off_x;
y2 -= off_y;
}
else
pixel_region_init (&maskPR, gimp_drawable_data (GIMP_DRAWABLE (mask)),
x1, y1, (x2 - x1), (y2 - y1), TRUE);
/* if the gimage doesn't have an alpha channel,
* make sure that the temp buf does. We need the
* alpha channel to fill with the region calculated above
*/
if (! has_alpha)
{
bytes ++;
has_alpha = TRUE;
}
}
buf_tiles = tile_manager_new ((x2 - x1), (y2 - y1), bytes);
pixel_region_init (&bufPR, buf_tiles, 0, 0, (x2 - x1), (y2 - y1), TRUE);
if (mask)
bucket_fill_region (fill_mode, &bufPR, &maskPR, col, pat_buf, x1, y1, has_alpha);
else
bucket_fill_region (fill_mode, &bufPR, NULL, col, pat_buf, x1, y1, has_alpha);
pixel_region_init (&bufPR, buf_tiles, 0, 0, (x2 - x1), (y2 - y1), FALSE);
gimp_image_apply_image (gimage, drawable, &bufPR, TRUE,
(opacity * 255) / 100, paint_mode, NULL, x1, y1);
/* update the image */
gimp_drawable_update (drawable, x1, y1, (x2 - x1), (y2 - y1));
/* free the temporary buffer */
tile_manager_destroy (buf_tiles);
/* free the mask */
if (mask)
gtk_object_unref (GTK_OBJECT (mask));
if (new_buf)
temp_buf_free (pat_buf);
gimp_unset_busy (gimage->gimp);
}
static void
bucket_fill_line_color (guchar *buf,
guchar *mask,
guchar *col,
gboolean has_alpha,
gint bytes,
gint width)
{
gint alpha, b;
alpha = (has_alpha) ? bytes - 1 : bytes;
while (width--)
{
for (b = 0; b < alpha; b++)
buf[b] = col[b];
if (has_alpha)
{
if (mask)
buf[alpha] = *mask++;
else
buf[alpha] = OPAQUE_OPACITY;
}
buf += bytes;
}
}
static void
bucket_fill_line_pattern (guchar *buf,
guchar *mask,
TempBuf *pattern,
gboolean has_alpha,
gint bytes,
gint x,
gint y,
gint width)
{
guchar *pat, *p;
gint alpha, b;
gint i;
/* Get a pointer to the appropriate scanline of the pattern buffer */
pat = temp_buf_data (pattern) +
(y % pattern->height) * pattern->width * pattern->bytes;
alpha = (has_alpha) ? bytes - 1 : bytes;
for (i = 0; i < width; i++)
{
p = pat + ((i + x) % pattern->width) * pattern->bytes;
for (b = 0; b < alpha; b++)
buf[b] = p[b];
if (has_alpha)
{
if (mask)
buf[alpha] = *mask++;
else
buf[alpha] = OPAQUE_OPACITY;
}
buf += bytes;
}
}
void
bucket_fill_region (BucketFillMode fill_mode,
PixelRegion *bufPR,
PixelRegion *maskPR,
guchar *col,
TempBuf *pattern,
gint off_x,
gint off_y,
gboolean has_alpha)
{
guchar *s, *m;
gint y;
void *pr;
for (pr = pixel_regions_register (2, bufPR, maskPR);
pr != NULL;
pr = pixel_regions_process (pr))
{
s = bufPR->data;
if (maskPR)
m = maskPR->data;
else
m = NULL;
for (y = 0; y < bufPR->h; y++)
{
switch (fill_mode)
{
case FG_BUCKET_FILL:
case BG_BUCKET_FILL:
bucket_fill_line_color (s, m, col, has_alpha, bufPR->bytes, bufPR->w);
break;
case PATTERN_BUCKET_FILL:
bucket_fill_line_pattern (s, m, pattern, has_alpha, bufPR->bytes,
off_x + bufPR->x, off_y + y + bufPR->y, bufPR->w);
break;
}
s += bufPR->rowstride;
if (maskPR)
m += maskPR->rowstride;
}
}
}
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