mirror of https://github.com/GNOME/gimp.git
679 lines
15 KiB
C
679 lines
15 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <strings.h>
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#include "gimpdrawableP.h"
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#include "gimpsignal.h"
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#include "gimage.h"
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#include "gimage_mask.h"
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#include "gimpparasite.h"
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#include "parasitelist.h"
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#include "libgimp/parasite.h"
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#include "libgimp/gimpintl.h"
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enum {
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INVALIDATE_PREVIEW,
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LAST_SIGNAL
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};
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static void gimp_drawable_class_init (GimpDrawableClass *klass);
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static void gimp_drawable_init (GimpDrawable *drawable);
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static void gimp_drawable_destroy (GtkObject *object);
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static guint gimp_drawable_signals[LAST_SIGNAL] = { 0 };
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static GimpDrawableClass *parent_class = NULL;
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GtkType
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gimp_drawable_get_type ()
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{
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static GtkType type;
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GIMP_TYPE_INIT(type,
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GimpDrawable,
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GimpDrawableClass,
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gimp_drawable_init,
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gimp_drawable_class_init,
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GIMP_TYPE_OBJECT);
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return type;
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}
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static void
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gimp_drawable_class_init (GimpDrawableClass *class)
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{
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GtkObjectClass *object_class;
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GtkType type=GIMP_TYPE_DRAWABLE;
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object_class = GTK_OBJECT_CLASS(class);
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parent_class = gtk_type_class (GIMP_TYPE_OBJECT);
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gimp_drawable_signals[INVALIDATE_PREVIEW] =
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gimp_signal_new ("invalidate_pr", GTK_RUN_LAST, type,
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GTK_SIGNAL_OFFSET(GimpDrawableClass,
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invalidate_preview),
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gimp_sigtype_void);
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gtk_object_class_add_signals (object_class, gimp_drawable_signals, LAST_SIGNAL);
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object_class->destroy = gimp_drawable_destroy;
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}
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/*
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* Static variables
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*/
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int global_drawable_ID = 1;
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static GHashTable *gimp_drawable_table = NULL;
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/**************************/
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/* Function definitions */
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GimpDrawable*
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gimp_drawable_get_ID (int drawable_id)
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{
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if (gimp_drawable_table == NULL)
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return NULL;
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return (GimpDrawable*) g_hash_table_lookup (gimp_drawable_table,
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(gpointer) drawable_id);
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}
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void
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gimp_drawable_merge_shadow (GimpDrawable *drawable, int undo)
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{
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GImage *gimage;
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PixelRegion shadowPR;
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int x1, y1, x2, y2;
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if (! drawable)
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return;
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if (! (gimage = gimp_drawable_gimage (drawable)))
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return;
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if (! gimage->shadow)
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return;
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/* A useful optimization here is to limit the update to the
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* extents of the selection mask, as it cannot extend beyond
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* them.
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*/
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gimp_drawable_mask_bounds (drawable, &x1, &y1, &x2, &y2);
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pixel_region_init (&shadowPR, gimage->shadow, x1, y1,
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(x2 - x1), (y2 - y1), FALSE);
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gimage_apply_image (gimage, drawable, &shadowPR, undo, OPAQUE_OPACITY,
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REPLACE_MODE, NULL, x1, y1);
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}
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void
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gimp_drawable_fill (GimpDrawable *drawable, guchar r, guchar g,
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guchar b, guchar a)
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{
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GImage *gimage;
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PixelRegion destPR;
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guchar c[MAX_CHANNELS];
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guchar i;
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g_assert(GIMP_IS_DRAWABLE(drawable));
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gimage=gimp_drawable_gimage(drawable);
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g_assert(gimage);
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switch (gimp_drawable_type (drawable))
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{
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case RGB_GIMAGE: case RGBA_GIMAGE:
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c[RED_PIX] = r;
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c[GREEN_PIX] = g;
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c[BLUE_PIX] = b;
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if (gimp_drawable_type (drawable) == RGBA_GIMAGE)
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c[ALPHA_PIX] = a;
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break;
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case GRAY_GIMAGE: case GRAYA_GIMAGE:
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c[GRAY_PIX] = r;
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if (gimp_drawable_type (drawable) == GRAYA_GIMAGE)
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c[ALPHA_G_PIX] = a;
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break;
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case INDEXED_GIMAGE: case INDEXEDA_GIMAGE:
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c[RED_PIX] = r;
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c[GREEN_PIX] = g;
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c[BLUE_PIX] = b;
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gimage_transform_color (gimage, drawable, c, &i, RGB);
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c[INDEXED_PIX] = i;
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if (gimp_drawable_type (drawable) == INDEXEDA_GIMAGE)
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c[ALPHA_I_PIX] = a;
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break;
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default:
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g_message (_("Can't fill unknown image type."));
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break;
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}
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pixel_region_init (&destPR,
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gimp_drawable_data (drawable),
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0, 0,
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gimp_drawable_width (drawable),
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gimp_drawable_height (drawable),
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TRUE);
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color_region (&destPR, c);
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}
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int
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gimp_drawable_mask_bounds (GimpDrawable *drawable,
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int *x1, int *y1, int *x2, int *y2)
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{
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GImage *gimage;
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int off_x, off_y;
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if (! drawable)
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return FALSE;
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if (! (gimage = gimp_drawable_gimage (drawable)))
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return FALSE;
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if (gimage_mask_bounds (gimage, x1, y1, x2, y2))
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{
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gimp_drawable_offsets (drawable, &off_x, &off_y);
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*x1 = CLAMP (*x1 - off_x, 0, gimp_drawable_width (drawable));
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*y1 = CLAMP (*y1 - off_y, 0, gimp_drawable_height (drawable));
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*x2 = CLAMP (*x2 - off_x, 0, gimp_drawable_width (drawable));
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*y2 = CLAMP (*y2 - off_y, 0, gimp_drawable_height (drawable));
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return TRUE;
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}
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else
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{
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*x2 = gimp_drawable_width (drawable);
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*y2 = gimp_drawable_height (drawable);
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return FALSE;
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}
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}
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void
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gimp_drawable_invalidate_preview (GimpDrawable *drawable)
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{
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GImage *gimage;
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if (! drawable)
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return;
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drawable->preview_valid = FALSE;
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#if 0
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gtk_signal_emit (GTK_OBJECT(drawable), gimp_drawable_signals[INVALIDATE_PREVIEW]);
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#endif
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gimage = gimp_drawable_gimage (drawable);
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if (gimage)
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{
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gimage->comp_preview_valid[0] = FALSE;
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gimage->comp_preview_valid[1] = FALSE;
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gimage->comp_preview_valid[2] = FALSE;
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}
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}
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int
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gimp_drawable_dirty (GimpDrawable *drawable)
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{
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if (drawable)
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return drawable->dirty = (drawable->dirty < 0) ? 2 : drawable->dirty + 1;
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else
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return 0;
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}
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int
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gimp_drawable_clean (GimpDrawable *drawable)
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{
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if (drawable)
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return drawable->dirty = (drawable->dirty <= 0) ? 0 : drawable->dirty - 1;
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else
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return 0;
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}
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GimpImage *
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gimp_drawable_gimage (GimpDrawable *drawable)
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{
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g_assert(GIMP_IS_DRAWABLE(drawable));
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return drawable->gimage;
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}
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void
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gimp_drawable_set_gimage (GimpDrawable *drawable, GimpImage *gimage)
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{
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g_assert(GIMP_IS_DRAWABLE(drawable));
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if (gimage == NULL)
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drawable->tattoo = 0;
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else if (drawable->tattoo == 0 || drawable->gimage != gimage )
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drawable->tattoo = gimp_image_get_new_tattoo(gimage);
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drawable->gimage = gimage;
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}
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int
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gimp_drawable_type (GimpDrawable *drawable)
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{
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if (drawable)
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return drawable->type;
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else
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return -1;
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}
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int
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gimp_drawable_has_alpha (GimpDrawable *drawable)
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{
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if (drawable)
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return drawable->has_alpha;
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else
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return FALSE;
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}
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int
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gimp_drawable_visible (GimpDrawable *drawable)
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{
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return drawable->visible;
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}
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char *
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gimp_drawable_get_name (GimpDrawable *drawable)
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{
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return drawable->name;
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}
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void
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gimp_drawable_set_name (GimpDrawable *drawable, char *name)
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{
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GSList *list, *listb, *base_list;
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GimpDrawable *drawableb;
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int number = 1;
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char *newname;
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char *ext;
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char numberbuf[20];
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g_return_if_fail(GIMP_IS_DRAWABLE(drawable));
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if (drawable->name)
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g_free(drawable->name);
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drawable->name = NULL;
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if (drawable->gimage == 0 || drawable->gimage->layers == 0)
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{
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/* no other layers to check name against */
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drawable->name = g_strdup(name);
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return;
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}
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if (GIMP_IS_LAYER(drawable))
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base_list = drawable->gimage->layers;
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else if (GIMP_IS_CHANNEL(drawable))
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base_list = drawable->gimage->channels;
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else
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base_list = NULL;
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list = base_list;
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while (list)
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{
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drawableb = GIMP_DRAWABLE(list->data);
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if (drawable != drawableb &&
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strcmp(name, gimp_drawable_get_name(drawableb)) == 0)
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{ /* names conflict */
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newname = g_malloc(strlen(name)+10); /* if this aint enough
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yer screwed */
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strcpy (newname, name);
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if ((ext = strrchr(newname, '#')))
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{
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number = atoi(ext+1);
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/* Check if there really was the number we think after the # */
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sprintf (numberbuf, "#%d", number);
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if (strcmp (ext, numberbuf) != 0)
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{
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/* No, so just ignore the # */
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number = 1;
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ext = &newname[strlen(newname)];
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}
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}
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else
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{
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number = 1;
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ext = &newname[strlen(newname)];
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}
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sprintf(ext, "#%d", number+1);
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listb = base_list;
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while (listb) /* make sure the new name is unique */
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{
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drawableb = GIMP_DRAWABLE(listb->data);
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if (drawable != drawableb && strcmp(newname,
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gimp_drawable_get_name(drawableb)) == 0)
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{
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number++;
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sprintf(ext, "#%d", number+1);
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/* Rescan from beginning */
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listb = base_list;
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continue;
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}
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listb = listb->next;
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}
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drawable->name = g_strdup(newname);
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g_free(newname);
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return;
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}
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list = list->next;
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}
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drawable->name = g_strdup(name);
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}
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Parasite *
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gimp_drawable_find_parasite (const GimpDrawable *drawable, const char *name)
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{
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return parasite_list_find(drawable->parasites, name);
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}
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void
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gimp_drawable_attach_parasite (GimpDrawable *drawable, Parasite *parasite)
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{
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parasite_list_add(drawable->parasites, parasite);
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if (parasite_is_persistent(parasite)) /* make sure we can be saved */
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gimp_image_dirty(drawable->gimage);
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if (parasite_has_flag(parasite, PARASITE_ATTACH_PARENT))
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{
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parasite_shift_parent(parasite);
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gimp_image_attach_parasite(drawable->gimage, parasite);
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}
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else if (parasite_has_flag(parasite, PARASITE_ATTACH_GRANDPARENT))
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{
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parasite_shift_parent(parasite);
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parasite_shift_parent(parasite);
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gimp_attach_parasite(parasite);
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}
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}
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void
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gimp_drawable_detach_parasite (GimpDrawable *drawable, const char *parasite)
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{
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Parasite *p;
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if (!(p = parasite_list_find(drawable->parasites, parasite)))
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return;
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if (parasite_is_persistent(p))
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gimp_image_dirty(drawable->gimage);
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parasite_list_remove(drawable->parasites, parasite);
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}
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Tattoo
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gimp_drawable_get_tattoo(const GimpDrawable *drawable)
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{
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return drawable->tattoo;
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}
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int
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gimp_drawable_type_with_alpha (GimpDrawable *drawable)
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{
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int type = gimp_drawable_type (drawable);
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int has_alpha = gimp_drawable_has_alpha (drawable);
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if (has_alpha)
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return type;
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else
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switch (type)
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{
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case RGB_GIMAGE:
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return RGBA_GIMAGE; break;
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case GRAY_GIMAGE:
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return GRAYA_GIMAGE; break;
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case INDEXED_GIMAGE:
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return INDEXEDA_GIMAGE; break;
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}
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return 0;
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}
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int
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gimp_drawable_color (GimpDrawable *drawable)
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{
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if (gimp_drawable_type (drawable) == RGBA_GIMAGE ||
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gimp_drawable_type (drawable) == RGB_GIMAGE)
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return 1;
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else
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return 0;
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}
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int
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gimp_drawable_gray (GimpDrawable *drawable)
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{
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if (gimp_drawable_type (drawable) == GRAYA_GIMAGE ||
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gimp_drawable_type (drawable) == GRAY_GIMAGE)
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return 1;
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else
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return 0;
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}
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int
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gimp_drawable_indexed (GimpDrawable *drawable)
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{
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if (gimp_drawable_type (drawable) == INDEXEDA_GIMAGE ||
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gimp_drawable_type (drawable) == INDEXED_GIMAGE)
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return 1;
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else
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return 0;
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}
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TileManager *
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gimp_drawable_data (GimpDrawable *drawable)
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{
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if (drawable)
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return drawable->tiles;
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else
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return NULL;
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}
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TileManager *
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gimp_drawable_shadow (GimpDrawable *drawable)
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{
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GImage *gimage;
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if (! (gimage = gimp_drawable_gimage (drawable)))
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return NULL;
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if (drawable)
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return gimage_shadow (gimage, drawable->width, drawable->height,
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drawable->bytes);
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else
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return NULL;
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}
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int
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gimp_drawable_bytes (GimpDrawable *drawable)
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{
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if (drawable)
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return drawable->bytes;
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else
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return -1;
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}
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int
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gimp_drawable_width (GimpDrawable *drawable)
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{
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if (drawable)
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return drawable->width;
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else
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return -1;
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}
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int
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gimp_drawable_height (GimpDrawable *drawable)
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{
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if (drawable)
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return drawable->height;
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else
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return -1;
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}
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void
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gimp_drawable_offsets (GimpDrawable *drawable, int *off_x, int *off_y)
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{
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if (drawable)
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{
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*off_x = drawable->offset_x;
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*off_y = drawable->offset_y;
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}
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else
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*off_x = *off_y = 0;
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}
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unsigned char *
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gimp_drawable_cmap (GimpDrawable *drawable)
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{
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GImage *gimage;
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if ((gimage = gimp_drawable_gimage (drawable)))
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return gimage->cmap;
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else
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return NULL;
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}
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void
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gimp_drawable_deallocate (GimpDrawable *drawable)
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{
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if (drawable->tiles)
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tile_manager_destroy (drawable->tiles);
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}
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static void
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gimp_drawable_init (GimpDrawable *drawable)
|
|
{
|
|
drawable->name = NULL;
|
|
drawable->tiles = NULL;
|
|
drawable->visible = FALSE;
|
|
drawable->width = drawable->height = 0;
|
|
drawable->offset_x = drawable->offset_y = 0;
|
|
drawable->bytes = 0;
|
|
drawable->dirty = FALSE;
|
|
drawable->gimage = NULL;
|
|
drawable->type = -1;
|
|
drawable->has_alpha = FALSE;
|
|
drawable->preview = NULL;
|
|
drawable->preview_valid = FALSE;
|
|
drawable->parasites = parasite_list_new();
|
|
drawable->tattoo = 0;
|
|
gimp_matrix_identity(drawable->transform);
|
|
|
|
drawable->ID = global_drawable_ID++;
|
|
if (gimp_drawable_table == NULL)
|
|
gimp_drawable_table = g_hash_table_new (g_direct_hash, NULL);
|
|
g_hash_table_insert (gimp_drawable_table, (gpointer) drawable->ID,
|
|
(gpointer) drawable);
|
|
}
|
|
|
|
static void
|
|
gimp_drawable_destroy (GtkObject *object)
|
|
{
|
|
GimpDrawable *drawable;
|
|
g_return_if_fail (object != NULL);
|
|
g_return_if_fail (GIMP_IS_DRAWABLE (object));
|
|
|
|
drawable = GIMP_DRAWABLE (object);
|
|
|
|
g_hash_table_remove (gimp_drawable_table, (gpointer) drawable->ID);
|
|
|
|
if (drawable->name)
|
|
g_free (drawable->name);
|
|
|
|
if (drawable->tiles)
|
|
tile_manager_destroy (drawable->tiles);
|
|
|
|
if (drawable->preview)
|
|
temp_buf_free (drawable->preview);
|
|
|
|
if (drawable->parasites)
|
|
gtk_object_unref(GTK_OBJECT(drawable->parasites));
|
|
|
|
if (GTK_OBJECT_CLASS (parent_class)->destroy)
|
|
(*GTK_OBJECT_CLASS (parent_class)->destroy) (object);
|
|
}
|
|
|
|
void
|
|
gimp_drawable_configure (GimpDrawable *drawable,
|
|
GimpImage* gimage, int width, int height,
|
|
int type, char *name)
|
|
{
|
|
int bpp;
|
|
int alpha;
|
|
|
|
if (!name)
|
|
name = _("unnamed");
|
|
|
|
switch (type)
|
|
{
|
|
case RGB_GIMAGE:
|
|
bpp = 3; alpha = 0; break;
|
|
case GRAY_GIMAGE:
|
|
bpp = 1; alpha = 0; break;
|
|
case RGBA_GIMAGE:
|
|
bpp = 4; alpha = 1; break;
|
|
case GRAYA_GIMAGE:
|
|
bpp = 2; alpha = 1; break;
|
|
case INDEXED_GIMAGE:
|
|
bpp = 1; alpha = 0; break;
|
|
case INDEXEDA_GIMAGE:
|
|
bpp = 2; alpha = 1; break;
|
|
default:
|
|
g_message (_("Layer type %d not supported."), type);
|
|
return;
|
|
}
|
|
|
|
drawable->name = NULL;
|
|
drawable->width = width;
|
|
drawable->height = height;
|
|
drawable->bytes = bpp;
|
|
drawable->type = type;
|
|
drawable->has_alpha = alpha;
|
|
drawable->offset_x = 0;
|
|
drawable->offset_y = 0;
|
|
|
|
if (drawable->tiles)
|
|
tile_manager_destroy (drawable->tiles);
|
|
drawable->tiles = tile_manager_new (width, height, bpp);
|
|
drawable->dirty = FALSE;
|
|
drawable->visible = TRUE;
|
|
|
|
if (gimage)
|
|
gimp_drawable_set_gimage(drawable, gimage);
|
|
|
|
gimp_drawable_set_name(drawable, name);
|
|
|
|
/* preview variables */
|
|
drawable->preview = NULL;
|
|
drawable->preview_valid = FALSE;
|
|
}
|
|
|