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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 "apptypes.h"
-
- #include "appenv.h"
- #include "bucket_fill.h"
- #include "cursorutil.h"
- #include "drawable.h"
- #include "fuzzy_select.h"
- #include "gdisplay.h"
- #include "gimage_mask.h"
- #include "gimprc.h"
- #include "gimpui.h"
- #include "paint_funcs.h"
- #include "paint_options.h"
- #include "selection.h"
- #include "tools.h"
- #include "undo.h"
-
- #include "libgimp/gimpintl.h"
-
- /* the bucket fill structures */
-
- typedef struct _BucketTool BucketTool;
- struct _BucketTool
- {
- gint target_x; /* starting x coord */
- gint target_y; /* starting y coord */
- };
-
- 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;
-
-
- /* local function prototypes */
-
- static void bucket_fill_button_press (Tool *, GdkEventButton *, gpointer);
- static void bucket_fill_button_release (Tool *, GdkEventButton *, gpointer);
- static void bucket_fill_cursor_update (Tool *, GdkEventMotion *, gpointer);
-
- 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 */
-
- static void
- bucket_options_reset (void)
- {
- BucketOptions *options = bucket_options;
-
- paint_options_reset ((PaintOptions *) 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),
- 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;
-
- /* the new bucket fill tool options structure */
- options = (BucketOptions *) g_malloc (sizeof (BucketOptions));
- paint_options_init ((PaintOptions *) options,
- BUCKET_FILL,
- bucket_options_reset);
- options->sample_merged = options->sample_merged_d = FALSE;
- options->threshold = default_threshold;
- options->fill_mode = options->fill_mode_d = FG_BUCKET_FILL;
-
- /* the main vbox */
- vbox = ((ToolOptions *) 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 (default_threshold, 1.0, 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"),
- gimp_radio_button_update,
- &options->fill_mode, (gpointer) options->fill_mode,
-
- _("FG Color Fill"),
- (gpointer) FG_BUCKET_FILL,
- &options->fill_mode_w[0],
- _("BG Color Fill"),
- (gpointer) BG_BUCKET_FILL,
- &options->fill_mode_w[1],
- _("Pattern Fill"),
- (gpointer) 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
- bucket_fill_button_press (Tool *tool,
- GdkEventButton *bevent,
- gpointer gdisp_ptr)
- {
- GDisplay * gdisp;
- BucketTool * bucket_tool;
- gboolean use_offsets;
-
- gdisp = (GDisplay *) gdisp_ptr;
- bucket_tool = (BucketTool *) tool->private;
-
- 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_ptr = gdisp_ptr;
- tool->state = ACTIVE;
- }
-
- static void
- bucket_fill_button_release (Tool *tool,
- GdkEventButton *bevent,
- gpointer gdisp_ptr)
- {
- GDisplay * gdisp;
- BucketTool * bucket_tool;
- Argument *return_vals;
- gint nreturn_vals;
-
- gdisp = (GDisplay *) gdisp_ptr;
- bucket_tool = (BucketTool *) tool->private;
-
- gdk_pointer_ungrab (bevent->time);
- gdk_flush ();
-
- /* if the 3rd button isn't pressed, fill the selected region */
- if (! (bevent->state & GDK_BUTTON3_MASK))
- {
- return_vals =
- procedural_db_run_proc ("gimp_bucket_fill",
- &nreturn_vals,
- PDB_DRAWABLE, drawable_ID (gimage_active_drawable (gdisp->gimage)),
- PDB_INT32, (gint32) bucket_options->fill_mode,
- PDB_INT32, (gint32) gimp_context_get_paint_mode (NULL),
- PDB_FLOAT, (gdouble) gimp_context_get_opacity (NULL) * 100,
- PDB_FLOAT, (gdouble) bucket_options->threshold,
- PDB_INT32, (gint32) bucket_options->sample_merged,
- PDB_FLOAT, (gdouble) bucket_tool->target_x,
- PDB_FLOAT, (gdouble) bucket_tool->target_y,
- PDB_END);
-
- if (return_vals && return_vals[0].value.pdb_int == PDB_SUCCESS)
- gdisplays_flush ();
- else
- g_message (_("Bucket Fill operation failed."));
-
- procedural_db_destroy_args (return_vals, nreturn_vals);
- }
-
- tool->state = INACTIVE;
- }
-
- static void
- bucket_fill_cursor_update (Tool *tool,
- GdkEventMotion *mevent,
- gpointer gdisp_ptr)
- {
- GDisplay *gdisp;
- Layer *layer;
- GdkCursorType ctype = GDK_TOP_LEFT_ARROW;
- CursorModifier cmodifier = CURSOR_MODIFIER_NONE;
- gint x, y;
- gint off_x, off_y;
-
- gdisp = (GDisplay *) gdisp_ptr;
-
- gdisplay_untransform_coords (gdisp, mevent->x, mevent->y,
- &x, &y, FALSE, FALSE);
- if ((layer = gimage_get_active_layer (gdisp->gimage)))
- {
- drawable_offsets (GIMP_DRAWABLE (layer), &off_x, &off_y);
-
- if (x >= off_x && y >= off_y &&
- x < (off_x + drawable_width (GIMP_DRAWABLE (layer))) &&
- y < (off_y + 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 = CURSOR_MODIFIER_FOREGROUND;
- break;
- case BG_BUCKET_FILL:
- cmodifier = CURSOR_MODIFIER_BACKGROUND;
- break;
- case PATTERN_BUCKET_FILL:
- cmodifier = CURSOR_MODIFIER_PATTERN;
- break;
- }
- }
- }
- }
-
- gdisplay_install_tool_cursor (gdisp, ctype,
- BUCKET_FILL,
- cmodifier,
- FALSE);
- }
-
- static void
- bucket_fill_modifier_key_func (Tool *tool,
- GdkEventKey *kevent,
- gpointer gdisp_ptr)
- {
- 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;
- Channel *mask = NULL;
- gint bytes;
- gboolean has_alpha;
- gint x1, y1, x2, y2;
- guchar col [MAX_CHANNELS];
- guchar *d1, *d2;
- GPattern *pattern;
- TempBuf *pat_buf;
- gboolean new_buf = FALSE;
-
- pat_buf = NULL;
-
- if (fill_mode == FG_BUCKET_FILL)
- gimage_get_foreground (gimage, drawable, col);
- else if (fill_mode == BG_BUCKET_FILL)
- gimage_get_background (gimage, drawable, col);
- else if (fill_mode == PATTERN_BUCKET_FILL)
- {
- pattern = gimp_context_get_pattern (NULL);
-
- 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) && !drawable_color (drawable)) ||
- ((pattern->mask->bytes == 1) && !drawable_gray (drawable)))
- {
- int size;
-
- if ((pattern->mask->bytes == 1) && drawable_color (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--)
- {
- gimage_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_add_busy_cursors ();
-
- bytes = drawable_bytes (drawable);
- has_alpha = 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 (! drawable_mask_bounds (drawable, &x1, &y1, &x2, &y2))
- {
- mask = find_contiguous_region (gimage, drawable, TRUE, (int) threshold,
- (int) x, (int) y, sample_merged);
-
- channel_bounds (mask, &x1, &y1, &x2, &y2);
-
- /* make sure we handle the mask correctly if it was sample-merged */
- if (sample_merged)
- {
- int off_x, off_y;
-
- /* Limit the channel bounds to the drawable's extents */
- drawable_offsets (drawable, &off_x, &off_y);
- x1 = CLAMP (x1, off_x, (off_x + drawable_width (drawable)));
- y1 = CLAMP (y1, off_y, (off_y + drawable_height (drawable)));
- x2 = CLAMP (x2, off_x, (off_x + drawable_width (drawable)));
- y2 = CLAMP (y2, off_y, (off_y + drawable_height (drawable)));
-
- pixel_region_init (&maskPR, 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, 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);
- gimage_apply_image (gimage, drawable, &bufPR, TRUE,
- (opacity * 255) / 100, paint_mode, NULL, x1, y1);
-
- /* update the image */
- drawable_update (drawable, x1, y1, (x2 - x1), (y2 - y1));
-
- /* free the temporary buffer */
- tile_manager_destroy (buf_tiles);
-
- /* free the mask */
- if (mask)
- channel_delete (mask);
-
- if (new_buf)
- temp_buf_free (pat_buf);
-
- gimp_remove_busy_cursors (NULL);
- }
-
- 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;
- }
- }
- }
-
- /**********************************/
- /* Global bucket fill functions */
- /**********************************/
-
- Tool *
- tools_new_bucket_fill (void)
- {
- Tool * tool;
- BucketTool * private;
-
- /* The tool options */
- if (! bucket_options)
- {
- bucket_options = bucket_options_new ();
- tools_register (BUCKET_FILL, (ToolOptions *) bucket_options);
-
- /* press all default buttons */
- bucket_options_reset ();
- }
-
- tool = tools_new_tool (BUCKET_FILL);
- private = g_new0 (BucketTool, 1);
-
- tool->scroll_lock = TRUE; /* Disallow scrolling */
-
- tool->private = (void *) private;
-
- tool->button_press_func = bucket_fill_button_press;
- tool->button_release_func = bucket_fill_button_release;
- tool->modifier_key_func = bucket_fill_modifier_key_func;
- tool->cursor_update_func = bucket_fill_cursor_update;
-
- return tool;
- }
-
- void
- tools_free_bucket_fill (Tool *tool)
- {
- BucketTool * bucket_tool;
-
- bucket_tool = (BucketTool *) tool->private;
-
- g_free (bucket_tool);
- }
-