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app/Makefile.am new files. The import functions stripped from all UI crap. 

2001-02-19  Michael Natterer  <mitch@gimp.org>

	* app/Makefile.am
	* app/gimppalette-import.[ch]: new files. The import functions
	stripped from all UI crap.

	* app/palette_import.c: removed from here.
This commit is contained in:
Michael Natterer 2001-02-19 18:07:08 +00:00 committed by Michael Natterer
parent 9e131cb249
commit adf0ff879b
9 changed files with 912 additions and 1051 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2001-02-19 Michael Natterer <mitch@gimp.org>
* app/Makefile.am
* app/gimppalette-import.[ch]: new files. The import functions
stripped from all UI crap.
* app/palette_import.c: removed from here.
2001-02-19 Sven Neumann <sven@gimp.org>
* app/gimpimage.[ch]: converted gimage->layers and gimage->channels

4
app/Makefile.am
View File

@ -148,6 +148,8 @@ gimp_SOURCES = \
gimppattern.h \
gimppalette.c \
gimppalette.h \
gimppalette-import.c \
gimppalette-import.h \
gimpparasite.c \
gimpparasite.h \
gimppreviewcache.h \
@ -164,7 +166,7 @@ gimp_SOURCES = \
global_edit.c \
global_edit.h \
gradient_editor.c \
gradient_editoe.h \
gradient_editor.h \
gradient_select.h \
gradient_select.c \
gximage.c \

361
app/core/gimppalette-import.c Normal file
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@ -0,0 +1,361 @@
/* 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 "libgimpcolor/gimpcolor.h"
#include "apptypes.h"
#include "gimpcontainer.h"
#include "gimpgradient.h"
#include "gimpimage.h"
#include "gimppalette.h"
#include "pixel_region.h"
#include "temp_buf.h"
#include "libgimp/gimpintl.h"
#define MAX_IMAGE_COLORS (10000 * 2)
/* create a palette from a gradient ****************************************/
GimpPalette *
gimp_palette_import_from_gradient (GimpGradient *gradient,
const gchar *palette_name,
gint n_colors)
{
GimpPalette *palette;
gdouble dx, cur_x;
GimpRGB color;
gint loop;
g_return_val_if_fail (gradient != NULL, NULL);
g_return_val_if_fail (GIMP_IS_GRADIENT (gradient), NULL);
g_return_val_if_fail (palette_name != NULL, NULL);
g_return_val_if_fail (n_colors > 0, NULL);
palette = GIMP_PALETTE (gimp_palette_new (palette_name));
dx = 1.0 / (n_colors - 1);
cur_x = 0;
for (loop = 0; loop < n_colors; loop++)
{
gimp_gradient_get_color_at (gradient, cur_x, &color);
cur_x += dx;
gimp_palette_add_entry (palette, NULL, &color);
}
return palette;
}
/* create a palette from a non-indexed image *******************************/
typedef struct _ImgColors ImgColors;
struct _ImgColors
{
guint count;
guint r_adj;
guint g_adj;
guint b_adj;
guchar r;
guchar g;
guchar b;
};
static gint count_color_entries = 0;
static GHashTable *
gimp_palette_import_store_colors (GHashTable *h_array,
guchar *colors,
guchar *colors_real,
gint n_colors)
{
gpointer found_color = NULL;
ImgColors *new_color;
guint key_colors = colors[0] * 256 * 256 + colors[1] * 256 + colors[2];
if (h_array == NULL)
{
h_array = g_hash_table_new (g_direct_hash, g_direct_equal);
count_color_entries = 0;
}
else
{
found_color = g_hash_table_lookup (h_array, (gpointer) key_colors);
}
if (found_color == NULL)
{
if (count_color_entries > MAX_IMAGE_COLORS)
{
/* Don't add any more new ones */
return h_array;
}
count_color_entries++;
new_color = g_new (ImgColors, 1);
new_color->count = 1;
new_color->r_adj = 0;
new_color->g_adj = 0;
new_color->b_adj = 0;
new_color->r = colors[0];
new_color->g = colors[1];
new_color->b = colors[2];
g_hash_table_insert (h_array, (gpointer) key_colors, new_color);
}
else
{
new_color = (ImgColors *) found_color;
if (new_color->count < (G_MAXINT - 1))
new_color->count++;
/* Now do the adjustments ...*/
new_color->r_adj += (colors_real[0] - colors[0]);
new_color->g_adj += (colors_real[1] - colors[1]);
new_color->b_adj += (colors_real[2] - colors[2]);
/* Boundary conditions */
if(new_color->r_adj > (G_MAXINT - 255))
new_color->r_adj /= new_color->count;
if(new_color->g_adj > (G_MAXINT - 255))
new_color->g_adj /= new_color->count;
if(new_color->b_adj > (G_MAXINT - 255))
new_color->b_adj /= new_color->count;
}
return h_array;
}
static void
gimp_palette_import_create_sorted_list (gpointer key,
gpointer value,
gpointer user_data)
{
GSList **sorted_list = (GSList**) user_data;
ImgColors *color_tab = (ImgColors *) value;
*sorted_list = g_slist_prepend (*sorted_list, color_tab);
}
static gint
gimp_palette_import_sort_colors (gconstpointer a,
gconstpointer b)
{
ImgColors *s1 = (ImgColors *) a;
ImgColors *s2 = (ImgColors *) b;
if(s1->count > s2->count)
return -1;
if(s1->count < s2->count)
return 1;
return 0;
}
static void
gimp_palette_import_create_image_palette (gpointer data,
gpointer user_data)
{
GimpPalette *palette;
ImgColors *color_tab;
gint n_colors;
gchar *lab;
GimpRGB color;
palette = (GimpPalette *) user_data;
color_tab = (ImgColors *) data;
n_colors = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (palette),
"import_n_colors"));
if (palette->n_colors >= n_colors)
return;
lab = g_strdup_printf ("%s (occurs %u)", _("Untitled"), color_tab->count);
/* Adjust the colors to the mean of the the sample */
gimp_rgba_set_uchar
(&color,
(guchar) color_tab->r + (color_tab->r_adj / color_tab->count),
(guchar) color_tab->g + (color_tab->g_adj / color_tab->count),
(guchar) color_tab->b + (color_tab->b_adj / color_tab->count),
255);
gimp_palette_add_entry (palette, lab, &color);
g_free (lab);
}
static GimpPalette *
gimp_palette_import_image_make_palette (GHashTable *h_array,
const gchar *palette_name,
gint n_colors)
{
GimpPalette *palette;
GSList *sorted_list = NULL;
g_hash_table_foreach (h_array, gimp_palette_import_create_sorted_list,
&sorted_list);
sorted_list = g_slist_sort (sorted_list, gimp_palette_import_sort_colors);
palette = GIMP_PALETTE (gimp_palette_new (palette_name));
gtk_object_set_data (GTK_OBJECT (palette), "import_n_colors",
GINT_TO_POINTER (n_colors));
g_slist_foreach (sorted_list, gimp_palette_import_create_image_palette,
palette);
gtk_object_set_data (GTK_OBJECT (palette), "import_n_colors", NULL);
/* Free up used memory
* Note the same structure is on both the hash list and the sorted
* list. So only delete it once.
*/
g_hash_table_destroy (h_array);
g_slist_foreach (sorted_list, (GFunc) g_free, NULL);
g_slist_free (sorted_list);
return palette;
}
GimpPalette *
gimp_palette_import_from_image (GimpImage *gimage,
const gchar *palette_name,
gint n_colors,
gint threshold)
{
PixelRegion imagePR;
guchar *image_data;
guchar *idata;
guchar rgb[MAX_CHANNELS];
guchar rgb_real[MAX_CHANNELS];
gint has_alpha, indexed;
gint width, height;
gint bytes, alpha;
gint i, j;
void *pr;
gint d_type;
GHashTable *store_array = NULL;
g_return_val_if_fail (gimage != NULL, NULL);
g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
g_return_val_if_fail (palette_name != NULL, NULL);
g_return_val_if_fail (n_colors > 0, NULL);
g_return_val_if_fail (threshold > 0, NULL);
/* Get the image information */
bytes = gimp_image_composite_bytes (gimage);
d_type = gimp_image_composite_type (gimage);
has_alpha = GIMP_IMAGE_TYPE_HAS_ALPHA (d_type);
indexed = d_type == INDEXEDA_GIMAGE || d_type == INDEXED_GIMAGE;
width = gimage->width;
height = gimage->height;
pixel_region_init (&imagePR, gimp_image_composite (gimage), 0, 0,
width, height, FALSE);
alpha = bytes - 1;
/* iterate over the entire image */
for (pr = pixel_regions_register (1, &imagePR);
pr != NULL;
pr = pixel_regions_process (pr))
{
image_data = imagePR.data;
for (i = 0; i < imagePR.h; i++)
{
idata = image_data;
for (j = 0; j < imagePR.w; j++)
{
/* Get the rgb values for the color */
gimp_image_get_color (gimage, d_type, rgb, idata);
memcpy (rgb_real, rgb, MAX_CHANNELS); /* Structure copy */
rgb[0] = (rgb[0] / threshold) * threshold;
rgb[1] = (rgb[1] / threshold) * threshold;
rgb[2] = (rgb[2] / threshold) * threshold;
store_array =
gimp_palette_import_store_colors (store_array, rgb, rgb_real,
n_colors);
idata += bytes;
}
image_data += imagePR.rowstride;
}
}
return gimp_palette_import_image_make_palette (store_array,
palette_name,
n_colors);
}
/* create a palette from an indexed image **********************************/
GimpPalette *
gimp_palette_import_from_indexed_image (GimpImage *gimage,
const gchar *palette_name)
{
GimpPalette *palette;
gint count;
GimpRGB color;
g_return_val_if_fail (gimage != NULL, NULL);
g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
g_return_val_if_fail (gimp_image_base_type (gimage) == INDEXED, NULL);
g_return_val_if_fail (palette_name != NULL, NULL);
if (! (gimage && gimp_image_base_type (gimage) == INDEXED))
return NULL;
palette = GIMP_PALETTE (gimp_palette_new (palette_name));
for (count= 0; count < gimage->num_cols; ++count)
{
gimp_rgba_set_uchar (&color,
gimage->cmap[count * 3],
gimage->cmap[count * 3 + 1],
gimage->cmap[count * 3 + 2],
255);
gimp_palette_add_entry (palette, NULL, &color);
}
return palette;
}

34
app/core/gimppalette-import.h Normal file
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@ -0,0 +1,34 @@
/* 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.
*/
#ifndef __GIMP_PALETTE_IMPORT__
#define __GIMP_PALETTE_IMPORT__
GimpPalette * gimp_palette_import_from_gradient (GimpGradient *gradient,
const gchar *palette_name,
gint n_colors);
GimpPalette * gimp_palette_import_from_image (GimpImage *gimage,
const gchar *palette_name,
gint n_colors,
gint treshold);
GimpPalette * gimp_palette_import_from_indexed_image (GimpImage *gimage,
const gchar *palette_name);
#endif /* __GIMP_PALETTE_IMPORT_H__ */

387
app/dialogs/palette-import-dialog.c
View File

@ -35,11 +35,10 @@
#include "gimpgradient.h"
#include "gimpimage.h"
#include "gimppalette.h"
#include "gimppalette-import.h"
#include "gradient_select.h"
#include "palette.h"
#include "palette_import.h"
#include "paletteP.h"
#include "pixel_region.h"
#include "temp_buf.h"
#include "pdb/procedural_db.h"
@ -49,7 +48,6 @@
#define IMPORT_PREVIEW_WIDTH 80
#define IMPORT_PREVIEW_HEIGHT 80
#define MAX_IMAGE_COLORS (10000 * 2)
typedef enum
{
@ -230,6 +228,7 @@ palette_import_update_image_preview (GimpImage *gimage)
buf[x*3+1] = src[x*stride+1];
buf[x*3+2] = src[x*stride+2];
}
gtk_preview_draw_row (GTK_PREVIEW (import_dialog->preview),
(guchar *)buf, 0, y, preview_buf->width);
src += preview_buf->width * preview_buf->bytes;
@ -268,9 +267,9 @@ palette_import_image_menu_add (GimpImage *gimage)
GtkWidget *menuitem;
gchar *lab;
lab= g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (gimage)),
pdb_image_to_id (gimage));
lab = g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (gimage)),
pdb_image_to_id (gimage));
menuitem = gtk_menu_item_new_with_label (lab);
@ -361,7 +360,7 @@ palette_import_image_menu_activate (gint redo,
gtk_box_pack_start (GTK_BOX (import_dialog->select_area),
optionmenu1, FALSE, FALSE, 0);
if(last_img != NULL && last_img != del_image)
if (last_img != NULL && last_img != del_image)
palette_import_update_image_preview (last_img);
else if (first_img != NULL)
palette_import_update_image_preview (first_img);
@ -538,339 +537,6 @@ palette_import_image_renamed (GimpImage* gimage)
}
}
/* create a palette from a gradient ****************************************/
static void
palette_import_create_from_grad (gchar *name)
{
GimpPalette *palette;
GimpGradient *gradient;
gradient = gimp_context_get_gradient (gimp_context_get_user ());
if (gradient)
{
/* Add names to entry */
gdouble dx, cur_x;
GimpRGB color;
gint sample_sz;
gint loop;
palette = GIMP_PALETTE (gimp_palette_new (name));
sample_sz = (gint) import_dialog->sample->value;
dx = 1.0 / (sample_sz - 1);
cur_x = 0;
for (loop = 0; loop < sample_sz; loop++)
{
gimp_gradient_get_color_at (gradient, cur_x, &color);
cur_x += dx;
gimp_palette_add_entry (palette, NULL, &color);
}
gimp_container_add (global_palette_factory->container,
GIMP_OBJECT (palette));
}
}
/* create a palette from a non-indexed image *******************************/
typedef struct _ImgColors ImgColors;
struct _ImgColors
{
guint count;
guint r_adj;
guint g_adj;
guint b_adj;
guchar r;
guchar g;
guchar b;
};
static gint count_color_entries = 0;
static GHashTable *
palette_import_store_colors (GHashTable *h_array,
guchar *colors,
guchar *colors_real,
gint sample_sz)
{
gpointer found_color = NULL;
ImgColors *new_color;
guint key_colors = colors[0] * 256 * 256 + colors[1] * 256 + colors[2];
if (h_array == NULL)
{
h_array = g_hash_table_new (g_direct_hash, g_direct_equal);
count_color_entries = 0;
}
else
{
found_color = g_hash_table_lookup (h_array, (gpointer) key_colors);
}
if (found_color == NULL)
{
if (count_color_entries > MAX_IMAGE_COLORS)
{
/* Don't add any more new ones */
return h_array;
}
count_color_entries++;
new_color = g_new (ImgColors, 1);
new_color->count = 1;
new_color->r_adj = 0;
new_color->g_adj = 0;
new_color->b_adj = 0;
new_color->r = colors[0];
new_color->g = colors[1];
new_color->b = colors[2];
g_hash_table_insert (h_array, (gpointer) key_colors, new_color);
}
else
{
new_color = (ImgColors *) found_color;
if(new_color->count < (G_MAXINT - 1))
new_color->count++;
/* Now do the adjustments ...*/
new_color->r_adj += (colors_real[0] - colors[0]);
new_color->g_adj += (colors_real[1] - colors[1]);
new_color->b_adj += (colors_real[2] - colors[2]);
/* Boundary conditions */
if(new_color->r_adj > (G_MAXINT - 255))
new_color->r_adj /= new_color->count;
if(new_color->g_adj > (G_MAXINT - 255))
new_color->g_adj /= new_color->count;
if(new_color->b_adj > (G_MAXINT - 255))
new_color->b_adj /= new_color->count;
}
return h_array;
}
static void
palette_import_create_sorted_list (gpointer key,
gpointer value,
gpointer user_data)
{
GSList **sorted_list = (GSList**) user_data;
ImgColors *color_tab = (ImgColors *) value;
*sorted_list = g_slist_prepend (*sorted_list, color_tab);
}
static gint
palette_import_sort_colors (gconstpointer a,
gconstpointer b)
{
ImgColors *s1 = (ImgColors *) a;
ImgColors *s2 = (ImgColors *) b;
if(s1->count > s2->count)
return -1;
if(s1->count < s2->count)
return 1;
return 0;
}
static void
palette_import_create_image_palette (gpointer data,
gpointer user_data)
{
GimpPalette *palette;
ImgColors *color_tab;
gint sample_sz;
gchar *lab;
GimpRGB color;
palette = (GimpPalette *) user_data;
color_tab = (ImgColors *) data;
sample_sz = (gint) import_dialog->sample->value;
if (palette->n_colors >= sample_sz)
return;
lab = g_strdup_printf ("%s (occurs %u)", _("Untitled"), color_tab->count);
/* Adjust the colors to the mean of the the sample */
gimp_rgba_set_uchar
(&color,
(guchar) color_tab->r + (color_tab->r_adj / color_tab->count),
(guchar) color_tab->g + (color_tab->g_adj / color_tab->count),
(guchar) color_tab->b + (color_tab->b_adj / color_tab->count),
255);
gimp_palette_add_entry (palette, lab, &color);
g_free (lab);
}
static gboolean
palette_import_color_print_remove (gpointer key,
gpointer value,
gpointer user_data)
{
g_free (value);
return TRUE;
}
static void
palette_import_image_make_palette (GHashTable *h_array,
guchar *name)
{
GimpPalette *palette;
GSList *sorted_list = NULL;
g_hash_table_foreach (h_array, palette_import_create_sorted_list,
&sorted_list);
sorted_list = g_slist_sort (sorted_list, palette_import_sort_colors);
palette = GIMP_PALETTE (gimp_palette_new (name));
g_slist_foreach (sorted_list, palette_import_create_image_palette, palette);
/* Free up used memory
* Note the same structure is on both the hash list and the sorted
* list. So only delete it once.
*/
g_hash_table_freeze (h_array);
g_hash_table_foreach_remove (h_array,
palette_import_color_print_remove, NULL);
g_hash_table_thaw (h_array);
g_hash_table_destroy (h_array);
g_slist_free (sorted_list);
gimp_container_add (global_palette_factory->container, GIMP_OBJECT (palette));
}
static void
palette_import_create_from_image (GImage *gimage,
gchar *pname)
{
PixelRegion imagePR;
guchar *image_data;
guchar *idata;
guchar rgb[MAX_CHANNELS];
guchar rgb_real[MAX_CHANNELS];
gint has_alpha, indexed;
gint width, height;
gint bytes, alpha;
gint i, j;
void *pr;
gint d_type;
GHashTable *store_array = NULL;
gint sample_sz;
gint threshold = 1;
sample_sz = (gint) import_dialog->sample->value;
if (gimage == NULL)
return;
/* Get the image information */
bytes = gimp_image_composite_bytes (gimage);
d_type = gimp_image_composite_type (gimage);
has_alpha = (d_type == RGBA_GIMAGE ||
d_type == GRAYA_GIMAGE ||
d_type == INDEXEDA_GIMAGE);
indexed = d_type == INDEXEDA_GIMAGE || d_type == INDEXED_GIMAGE;
width = gimage->width;
height = gimage->height;
pixel_region_init (&imagePR, gimp_image_composite (gimage), 0, 0,
width, height, FALSE);
alpha = bytes - 1;
threshold = (gint) import_dialog->threshold->value;
if(threshold < 1)
threshold = 1;
/* iterate over the entire image */
for (pr = pixel_regions_register (1, &imagePR);
pr != NULL;
pr = pixel_regions_process (pr))
{
image_data = imagePR.data;
for (i = 0; i < imagePR.h; i++)
{
idata = image_data;
for (j = 0; j < imagePR.w; j++)
{
/* Get the rgb values for the color */
gimp_image_get_color (gimage, d_type, rgb, idata);
memcpy (rgb_real, rgb, MAX_CHANNELS); /* Structure copy */
rgb[0] = (rgb[0] / threshold) * threshold;
rgb[1] = (rgb[1] / threshold) * threshold;
rgb[2] = (rgb[2] / threshold) * threshold;
store_array =
palette_import_store_colors (store_array, rgb, rgb_real,
sample_sz);
idata += bytes;
}
image_data += imagePR.rowstride;
}
}
/* Make palette from the store_array */
palette_import_image_make_palette (store_array, pname);
}
/* create a palette from an indexed image **********************************/
static void
palette_import_create_from_indexed (GImage *gimage,
gchar *pname)
{
GimpPalette *palette;
gint samples;
gint count;
GimpRGB color;
samples = (gint) import_dialog->sample->value;
if (gimage == NULL)
return;
if (gimp_image_base_type (gimage) != INDEXED)
return;
palette = GIMP_PALETTE (gimp_palette_new (pname));
for (count= 0; count < samples && count < gimage->num_cols; ++count)
{
gimp_rgba_set_uchar (&color,
gimage->cmap[count*3],
gimage->cmap[count*3+1],
gimage->cmap[count*3+2],
255);
gimp_palette_add_entry (palette, NULL, &color);
}
gimp_container_add (global_palette_factory->container, GIMP_OBJECT (palette));
}
/* the palette import action area callbacks ********************************/
@ -887,32 +553,53 @@ static void
palette_import_import_callback (GtkWidget *widget,
gpointer data)
{
gchar *pname;
GimpPalette *palette = NULL;
gchar *palette_name;
GimpGradient *gradient;
gint n_colors;
gint threshold;
if (! import_dialog)
return;
pname = gtk_entry_get_text (GTK_ENTRY (import_dialog->entry));
if (!pname || !strlen (pname))
pname = g_strdup ("tmp");
palette_name = gtk_entry_get_text (GTK_ENTRY (import_dialog->entry));
if (! (palette_name && strlen (palette_name)))
palette_name = g_strdup (_("Unnamed"));
else
pname = g_strdup (pname);
palette_name = g_strdup (palette_name);
gradient = gimp_context_get_gradient (gimp_context_get_user ());
n_colors = (gint) import_dialog->sample->value;
threshold = (gint) import_dialog->threshold->value;
switch (import_dialog->import_type)
{
case GRAD_IMPORT:
palette_import_create_from_grad (pname);
palette = gimp_palette_import_from_gradient (gradient,
palette_name,
n_colors);
break;
case IMAGE_IMPORT:
palette_import_create_from_image (import_dialog->gimage, pname);
palette = gimp_palette_import_from_image (import_dialog->gimage,
palette_name,
n_colors,
threshold);
break;
case INDEXED_IMPORT:
palette_import_create_from_indexed (import_dialog->gimage, pname);
break;
default:
palette = gimp_palette_import_from_indexed_image (import_dialog->gimage,
palette_name);
break;
}
g_free (palette_name);
if (palette)
gimp_container_add (global_palette_factory->container,
GIMP_OBJECT (palette));
palette_import_close_callback (NULL, NULL);
}

361
app/gimppalette-import.c Normal file
View File

@ -0,0 +1,361 @@
/* 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 "libgimpcolor/gimpcolor.h"
#include "apptypes.h"
#include "gimpcontainer.h"
#include "gimpgradient.h"
#include "gimpimage.h"
#include "gimppalette.h"
#include "pixel_region.h"
#include "temp_buf.h"
#include "libgimp/gimpintl.h"
#define MAX_IMAGE_COLORS (10000 * 2)
/* create a palette from a gradient ****************************************/
GimpPalette *
gimp_palette_import_from_gradient (GimpGradient *gradient,
const gchar *palette_name,
gint n_colors)
{
GimpPalette *palette;
gdouble dx, cur_x;
GimpRGB color;
gint loop;
g_return_val_if_fail (gradient != NULL, NULL);
g_return_val_if_fail (GIMP_IS_GRADIENT (gradient), NULL);
g_return_val_if_fail (palette_name != NULL, NULL);
g_return_val_if_fail (n_colors > 0, NULL);
palette = GIMP_PALETTE (gimp_palette_new (palette_name));
dx = 1.0 / (n_colors - 1);
cur_x = 0;
for (loop = 0; loop < n_colors; loop++)
{
gimp_gradient_get_color_at (gradient, cur_x, &color);
cur_x += dx;
gimp_palette_add_entry (palette, NULL, &color);
}
return palette;
}
/* create a palette from a non-indexed image *******************************/
typedef struct _ImgColors ImgColors;
struct _ImgColors
{
guint count;
guint r_adj;
guint g_adj;
guint b_adj;
guchar r;
guchar g;
guchar b;
};
static gint count_color_entries = 0;
static GHashTable *
gimp_palette_import_store_colors (GHashTable *h_array,
guchar *colors,
guchar *colors_real,
gint n_colors)
{
gpointer found_color = NULL;
ImgColors *new_color;
guint key_colors = colors[0] * 256 * 256 + colors[1] * 256 + colors[2];
if (h_array == NULL)
{
h_array = g_hash_table_new (g_direct_hash, g_direct_equal);
count_color_entries = 0;
}
else
{
found_color = g_hash_table_lookup (h_array, (gpointer) key_colors);
}
if (found_color == NULL)
{
if (count_color_entries > MAX_IMAGE_COLORS)
{
/* Don't add any more new ones */
return h_array;
}
count_color_entries++;
new_color = g_new (ImgColors, 1);
new_color->count = 1;
new_color->r_adj = 0;
new_color->g_adj = 0;
new_color->b_adj = 0;
new_color->r = colors[0];
new_color->g = colors[1];
new_color->b = colors[2];
g_hash_table_insert (h_array, (gpointer) key_colors, new_color);
}
else
{
new_color = (ImgColors *) found_color;
if (new_color->count < (G_MAXINT - 1))
new_color->count++;
/* Now do the adjustments ...*/
new_color->r_adj += (colors_real[0] - colors[0]);
new_color->g_adj += (colors_real[1] - colors[1]);
new_color->b_adj += (colors_real[2] - colors[2]);
/* Boundary conditions */
if(new_color->r_adj > (G_MAXINT - 255))
new_color->r_adj /= new_color->count;
if(new_color->g_adj > (G_MAXINT - 255))
new_color->g_adj /= new_color->count;
if(new_color->b_adj > (G_MAXINT - 255))
new_color->b_adj /= new_color->count;
}
return h_array;
}
static void
gimp_palette_import_create_sorted_list (gpointer key,
gpointer value,
gpointer user_data)
{
GSList **sorted_list = (GSList**) user_data;
ImgColors *color_tab = (ImgColors *) value;
*sorted_list = g_slist_prepend (*sorted_list, color_tab);
}
static gint
gimp_palette_import_sort_colors (gconstpointer a,
gconstpointer b)
{
ImgColors *s1 = (ImgColors *) a;
ImgColors *s2 = (ImgColors *) b;
if(s1->count > s2->count)
return -1;
if(s1->count < s2->count)
return 1;
return 0;
}
static void
gimp_palette_import_create_image_palette (gpointer data,
gpointer user_data)
{
GimpPalette *palette;
ImgColors *color_tab;
gint n_colors;
gchar *lab;
GimpRGB color;
palette = (GimpPalette *) user_data;
color_tab = (ImgColors *) data;
n_colors = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (palette),
"import_n_colors"));
if (palette->n_colors >= n_colors)
return;
lab = g_strdup_printf ("%s (occurs %u)", _("Untitled"), color_tab->count);
/* Adjust the colors to the mean of the the sample */
gimp_rgba_set_uchar
(&color,
(guchar) color_tab->r + (color_tab->r_adj / color_tab->count),
(guchar) color_tab->g + (color_tab->g_adj / color_tab->count),
(guchar) color_tab->b + (color_tab->b_adj / color_tab->count),
255);
gimp_palette_add_entry (palette, lab, &color);
g_free (lab);
}
static GimpPalette *
gimp_palette_import_image_make_palette (GHashTable *h_array,
const gchar *palette_name,
gint n_colors)
{
GimpPalette *palette;
GSList *sorted_list = NULL;
g_hash_table_foreach (h_array, gimp_palette_import_create_sorted_list,
&sorted_list);
sorted_list = g_slist_sort (sorted_list, gimp_palette_import_sort_colors);
palette = GIMP_PALETTE (gimp_palette_new (palette_name));
gtk_object_set_data (GTK_OBJECT (palette), "import_n_colors",
GINT_TO_POINTER (n_colors));
g_slist_foreach (sorted_list, gimp_palette_import_create_image_palette,
palette);
gtk_object_set_data (GTK_OBJECT (palette), "import_n_colors", NULL);
/* Free up used memory
* Note the same structure is on both the hash list and the sorted
* list. So only delete it once.
*/
g_hash_table_destroy (h_array);
g_slist_foreach (sorted_list, (GFunc) g_free, NULL);
g_slist_free (sorted_list);
return palette;
}
GimpPalette *
gimp_palette_import_from_image (GimpImage *gimage,
const gchar *palette_name,
gint n_colors,
gint threshold)
{
PixelRegion imagePR;
guchar *image_data;
guchar *idata;
guchar rgb[MAX_CHANNELS];
guchar rgb_real[MAX_CHANNELS];
gint has_alpha, indexed;
gint width, height;
gint bytes, alpha;
gint i, j;
void *pr;
gint d_type;
GHashTable *store_array = NULL;
g_return_val_if_fail (gimage != NULL, NULL);
g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
g_return_val_if_fail (palette_name != NULL, NULL);
g_return_val_if_fail (n_colors > 0, NULL);
g_return_val_if_fail (threshold > 0, NULL);
/* Get the image information */
bytes = gimp_image_composite_bytes (gimage);
d_type = gimp_image_composite_type (gimage);
has_alpha = GIMP_IMAGE_TYPE_HAS_ALPHA (d_type);
indexed = d_type == INDEXEDA_GIMAGE || d_type == INDEXED_GIMAGE;
width = gimage->width;
height = gimage->height;
pixel_region_init (&imagePR, gimp_image_composite (gimage), 0, 0,
width, height, FALSE);
alpha = bytes - 1;
/* iterate over the entire image */
for (pr = pixel_regions_register (1, &imagePR);
pr != NULL;
pr = pixel_regions_process (pr))
{
image_data = imagePR.data;
for (i = 0; i < imagePR.h; i++)
{
idata = image_data;
for (j = 0; j < imagePR.w; j++)
{
/* Get the rgb values for the color */
gimp_image_get_color (gimage, d_type, rgb, idata);
memcpy (rgb_real, rgb, MAX_CHANNELS); /* Structure copy */
rgb[0] = (rgb[0] / threshold) * threshold;
rgb[1] = (rgb[1] / threshold) * threshold;
rgb[2] = (rgb[2] / threshold) * threshold;
store_array =
gimp_palette_import_store_colors (store_array, rgb, rgb_real,
n_colors);
idata += bytes;
}
image_data += imagePR.rowstride;
}
}
return gimp_palette_import_image_make_palette (store_array,
palette_name,
n_colors);
}
/* create a palette from an indexed image **********************************/
GimpPalette *
gimp_palette_import_from_indexed_image (GimpImage *gimage,
const gchar *palette_name)
{
GimpPalette *palette;
gint count;
GimpRGB color;
g_return_val_if_fail (gimage != NULL, NULL);
g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
g_return_val_if_fail (gimp_image_base_type (gimage) == INDEXED, NULL);
g_return_val_if_fail (palette_name != NULL, NULL);
if (! (gimage && gimp_image_base_type (gimage) == INDEXED))
return NULL;
palette = GIMP_PALETTE (gimp_palette_new (palette_name));
for (count= 0; count < gimage->num_cols; ++count)
{
gimp_rgba_set_uchar (&color,
gimage->cmap[count * 3],
gimage->cmap[count * 3 + 1],
gimage->cmap[count * 3 + 2],
255);
gimp_palette_add_entry (palette, NULL, &color);
}
return palette;
}

34
app/gimppalette-import.h Normal file
View File

@ -0,0 +1,34 @@
/* 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.
*/
#ifndef __GIMP_PALETTE_IMPORT__
#define __GIMP_PALETTE_IMPORT__
GimpPalette * gimp_palette_import_from_gradient (GimpGradient *gradient,
const gchar *palette_name,
gint n_colors);
GimpPalette * gimp_palette_import_from_image (GimpImage *gimage,
const gchar *palette_name,
gint n_colors,
gint treshold);
GimpPalette * gimp_palette_import_from_indexed_image (GimpImage *gimage,
const gchar *palette_name);
#endif /* __GIMP_PALETTE_IMPORT_H__ */

387
app/gui/palette-import-dialog.c
View File

@ -35,11 +35,10 @@
#include "gimpgradient.h"
#include "gimpimage.h"
#include "gimppalette.h"
#include "gimppalette-import.h"
#include "gradient_select.h"
#include "palette.h"
#include "palette_import.h"
#include "paletteP.h"
#include "pixel_region.h"
#include "temp_buf.h"
#include "pdb/procedural_db.h"
@ -49,7 +48,6 @@
#define IMPORT_PREVIEW_WIDTH 80
#define IMPORT_PREVIEW_HEIGHT 80
#define MAX_IMAGE_COLORS (10000 * 2)
typedef enum
{
@ -230,6 +228,7 @@ palette_import_update_image_preview (GimpImage *gimage)
buf[x*3+1] = src[x*stride+1];
buf[x*3+2] = src[x*stride+2];
}
gtk_preview_draw_row (GTK_PREVIEW (import_dialog->preview),
(guchar *)buf, 0, y, preview_buf->width);
src += preview_buf->width * preview_buf->bytes;
@ -268,9 +267,9 @@ palette_import_image_menu_add (GimpImage *gimage)
GtkWidget *menuitem;
gchar *lab;
lab= g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (gimage)),
pdb_image_to_id (gimage));
lab = g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (gimage)),
pdb_image_to_id (gimage));
menuitem = gtk_menu_item_new_with_label (lab);
@ -361,7 +360,7 @@ palette_import_image_menu_activate (gint redo,
gtk_box_pack_start (GTK_BOX (import_dialog->select_area),
optionmenu1, FALSE, FALSE, 0);
if(last_img != NULL && last_img != del_image)
if (last_img != NULL && last_img != del_image)
palette_import_update_image_preview (last_img);
else if (first_img != NULL)
palette_import_update_image_preview (first_img);
@ -538,339 +537,6 @@ palette_import_image_renamed (GimpImage* gimage)
}
}
/* create a palette from a gradient ****************************************/
static void
palette_import_create_from_grad (gchar *name)
{
GimpPalette *palette;
GimpGradient *gradient;
gradient = gimp_context_get_gradient (gimp_context_get_user ());
if (gradient)
{
/* Add names to entry */
gdouble dx, cur_x;
GimpRGB color;
gint sample_sz;
gint loop;
palette = GIMP_PALETTE (gimp_palette_new (name));
sample_sz = (gint) import_dialog->sample->value;
dx = 1.0 / (sample_sz - 1);
cur_x = 0;
for (loop = 0; loop < sample_sz; loop++)
{
gimp_gradient_get_color_at (gradient, cur_x, &color);
cur_x += dx;
gimp_palette_add_entry (palette, NULL, &color);
}
gimp_container_add (global_palette_factory->container,
GIMP_OBJECT (palette));
}
}
/* create a palette from a non-indexed image *******************************/
typedef struct _ImgColors ImgColors;
struct _ImgColors
{
guint count;
guint r_adj;
guint g_adj;
guint b_adj;
guchar r;
guchar g;
guchar b;
};
static gint count_color_entries = 0;
static GHashTable *
palette_import_store_colors (GHashTable *h_array,
guchar *colors,
guchar *colors_real,
gint sample_sz)
{
gpointer found_color = NULL;
ImgColors *new_color;
guint key_colors = colors[0] * 256 * 256 + colors[1] * 256 + colors[2];
if (h_array == NULL)
{
h_array = g_hash_table_new (g_direct_hash, g_direct_equal);
count_color_entries = 0;
}
else
{
found_color = g_hash_table_lookup (h_array, (gpointer) key_colors);
}
if (found_color == NULL)
{
if (count_color_entries > MAX_IMAGE_COLORS)
{
/* Don't add any more new ones */
return h_array;
}
count_color_entries++;
new_color = g_new (ImgColors, 1);
new_color->count = 1;
new_color->r_adj = 0;
new_color->g_adj = 0;
new_color->b_adj = 0;
new_color->r = colors[0];
new_color->g = colors[1];
new_color->b = colors[2];
g_hash_table_insert (h_array, (gpointer) key_colors, new_color);
}
else
{
new_color = (ImgColors *) found_color;
if(new_color->count < (G_MAXINT - 1))
new_color->count++;
/* Now do the adjustments ...*/
new_color->r_adj += (colors_real[0] - colors[0]);
new_color->g_adj += (colors_real[1] - colors[1]);
new_color->b_adj += (colors_real[2] - colors[2]);
/* Boundary conditions */
if(new_color->r_adj > (G_MAXINT - 255))
new_color->r_adj /= new_color->count;
if(new_color->g_adj > (G_MAXINT - 255))
new_color->g_adj /= new_color->count;
if(new_color->b_adj > (G_MAXINT - 255))
new_color->b_adj /= new_color->count;
}
return h_array;
}
static void
palette_import_create_sorted_list (gpointer key,
gpointer value,
gpointer user_data)
{
GSList **sorted_list = (GSList**) user_data;
ImgColors *color_tab = (ImgColors *) value;
*sorted_list = g_slist_prepend (*sorted_list, color_tab);
}
static gint
palette_import_sort_colors (gconstpointer a,
gconstpointer b)
{
ImgColors *s1 = (ImgColors *) a;
ImgColors *s2 = (ImgColors *) b;
if(s1->count > s2->count)
return -1;
if(s1->count < s2->count)
return 1;
return 0;
}
static void
palette_import_create_image_palette (gpointer data,
gpointer user_data)
{
GimpPalette *palette;
ImgColors *color_tab;
gint sample_sz;
gchar *lab;
GimpRGB color;
palette = (GimpPalette *) user_data;
color_tab = (ImgColors *) data;
sample_sz = (gint) import_dialog->sample->value;
if (palette->n_colors >= sample_sz)
return;
lab = g_strdup_printf ("%s (occurs %u)", _("Untitled"), color_tab->count);
/* Adjust the colors to the mean of the the sample */
gimp_rgba_set_uchar
(&color,
(guchar) color_tab->r + (color_tab->r_adj / color_tab->count),
(guchar) color_tab->g + (color_tab->g_adj / color_tab->count),
(guchar) color_tab->b + (color_tab->b_adj / color_tab->count),
255);
gimp_palette_add_entry (palette, lab, &color);
g_free (lab);
}
static gboolean
palette_import_color_print_remove (gpointer key,
gpointer value,
gpointer user_data)
{
g_free (value);
return TRUE;
}
static void
palette_import_image_make_palette (GHashTable *h_array,
guchar *name)
{
GimpPalette *palette;
GSList *sorted_list = NULL;
g_hash_table_foreach (h_array, palette_import_create_sorted_list,
&sorted_list);
sorted_list = g_slist_sort (sorted_list, palette_import_sort_colors);
palette = GIMP_PALETTE (gimp_palette_new (name));
g_slist_foreach (sorted_list, palette_import_create_image_palette, palette);
/* Free up used memory
* Note the same structure is on both the hash list and the sorted
* list. So only delete it once.
*/
g_hash_table_freeze (h_array);
g_hash_table_foreach_remove (h_array,
palette_import_color_print_remove, NULL);
g_hash_table_thaw (h_array);
g_hash_table_destroy (h_array);
g_slist_free (sorted_list);
gimp_container_add (global_palette_factory->container, GIMP_OBJECT (palette));
}
static void
palette_import_create_from_image (GImage *gimage,
gchar *pname)
{
PixelRegion imagePR;
guchar *image_data;
guchar *idata;
guchar rgb[MAX_CHANNELS];
guchar rgb_real[MAX_CHANNELS];
gint has_alpha, indexed;
gint width, height;
gint bytes, alpha;
gint i, j;
void *pr;
gint d_type;
GHashTable *store_array = NULL;
gint sample_sz;
gint threshold = 1;
sample_sz = (gint) import_dialog->sample->value;
if (gimage == NULL)
return;
/* Get the image information */
bytes = gimp_image_composite_bytes (gimage);
d_type = gimp_image_composite_type (gimage);
has_alpha = (d_type == RGBA_GIMAGE ||
d_type == GRAYA_GIMAGE ||
d_type == INDEXEDA_GIMAGE);
indexed = d_type == INDEXEDA_GIMAGE || d_type == INDEXED_GIMAGE;
width = gimage->width;
height = gimage->height;
pixel_region_init (&imagePR, gimp_image_composite (gimage), 0, 0,
width, height, FALSE);
alpha = bytes - 1;
threshold = (gint) import_dialog->threshold->value;
if(threshold < 1)
threshold = 1;
/* iterate over the entire image */
for (pr = pixel_regions_register (1, &imagePR);
pr != NULL;
pr = pixel_regions_process (pr))
{
image_data = imagePR.data;
for (i = 0; i < imagePR.h; i++)
{
idata = image_data;
for (j = 0; j < imagePR.w; j++)
{
/* Get the rgb values for the color */
gimp_image_get_color (gimage, d_type, rgb, idata);
memcpy (rgb_real, rgb, MAX_CHANNELS); /* Structure copy */
rgb[0] = (rgb[0] / threshold) * threshold;
rgb[1] = (rgb[1] / threshold) * threshold;
rgb[2] = (rgb[2] / threshold) * threshold;
store_array =
palette_import_store_colors (store_array, rgb, rgb_real,
sample_sz);
idata += bytes;
}
image_data += imagePR.rowstride;
}
}
/* Make palette from the store_array */
palette_import_image_make_palette (store_array, pname);
}
/* create a palette from an indexed image **********************************/
static void
palette_import_create_from_indexed (GImage *gimage,
gchar *pname)
{
GimpPalette *palette;
gint samples;
gint count;
GimpRGB color;
samples = (gint) import_dialog->sample->value;
if (gimage == NULL)
return;
if (gimp_image_base_type (gimage) != INDEXED)
return;
palette = GIMP_PALETTE (gimp_palette_new (pname));
for (count= 0; count < samples && count < gimage->num_cols; ++count)
{
gimp_rgba_set_uchar (&color,
gimage->cmap[count*3],
gimage->cmap[count*3+1],
gimage->cmap[count*3+2],
255);
gimp_palette_add_entry (palette, NULL, &color);
}
gimp_container_add (global_palette_factory->container, GIMP_OBJECT (palette));
}
/* the palette import action area callbacks ********************************/
@ -887,32 +553,53 @@ static void
palette_import_import_callback (GtkWidget *widget,
gpointer data)
{
gchar *pname;
GimpPalette *palette = NULL;
gchar *palette_name;
GimpGradient *gradient;
gint n_colors;
gint threshold;
if (! import_dialog)
return;
pname = gtk_entry_get_text (GTK_ENTRY (import_dialog->entry));
if (!pname || !strlen (pname))
pname = g_strdup ("tmp");
palette_name = gtk_entry_get_text (GTK_ENTRY (import_dialog->entry));
if (! (palette_name && strlen (palette_name)))
palette_name = g_strdup (_("Unnamed"));
else
pname = g_strdup (pname);
palette_name = g_strdup (palette_name);
gradient = gimp_context_get_gradient (gimp_context_get_user ());
n_colors = (gint) import_dialog->sample->value;
threshold = (gint) import_dialog->threshold->value;
switch (import_dialog->import_type)
{
case GRAD_IMPORT:
palette_import_create_from_grad (pname);
palette = gimp_palette_import_from_gradient (gradient,
palette_name,
n_colors);
break;
case IMAGE_IMPORT:
palette_import_create_from_image (import_dialog->gimage, pname);
palette = gimp_palette_import_from_image (import_dialog->gimage,
palette_name,
n_colors,
threshold);
break;
case INDEXED_IMPORT:
palette_import_create_from_indexed (import_dialog->gimage, pname);
break;
default:
palette = gimp_palette_import_from_indexed_image (import_dialog->gimage,
palette_name);
break;
}
g_free (palette_name);
if (palette)
gimp_container_add (global_palette_factory->container,
GIMP_OBJECT (palette));
palette_import_close_callback (NULL, NULL);
}

387
app/palette_import.c
View File

@ -35,11 +35,10 @@
#include "gimpgradient.h"
#include "gimpimage.h"
#include "gimppalette.h"
#include "gimppalette-import.h"
#include "gradient_select.h"
#include "palette.h"
#include "palette_import.h"
#include "paletteP.h"
#include "pixel_region.h"
#include "temp_buf.h"
#include "pdb/procedural_db.h"
@ -49,7 +48,6 @@
#define IMPORT_PREVIEW_WIDTH 80
#define IMPORT_PREVIEW_HEIGHT 80
#define MAX_IMAGE_COLORS (10000 * 2)
typedef enum
{
@ -230,6 +228,7 @@ palette_import_update_image_preview (GimpImage *gimage)
buf[x*3+1] = src[x*stride+1];
buf[x*3+2] = src[x*stride+2];
}
gtk_preview_draw_row (GTK_PREVIEW (import_dialog->preview),
(guchar *)buf, 0, y, preview_buf->width);
src += preview_buf->width * preview_buf->bytes;
@ -268,9 +267,9 @@ palette_import_image_menu_add (GimpImage *gimage)
GtkWidget *menuitem;
gchar *lab;
lab= g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (gimage)),
pdb_image_to_id (gimage));
lab = g_strdup_printf ("%s-%d",
g_basename (gimp_image_filename (gimage)),
pdb_image_to_id (gimage));
menuitem = gtk_menu_item_new_with_label (lab);
@ -361,7 +360,7 @@ palette_import_image_menu_activate (gint redo,
gtk_box_pack_start (GTK_BOX (import_dialog->select_area),
optionmenu1, FALSE, FALSE, 0);
if(last_img != NULL && last_img != del_image)
if (last_img != NULL && last_img != del_image)
palette_import_update_image_preview (last_img);
else if (first_img != NULL)
palette_import_update_image_preview (first_img);
@ -538,339 +537,6 @@ palette_import_image_renamed (GimpImage* gimage)
}
}
/* create a palette from a gradient ****************************************/
static void
palette_import_create_from_grad (gchar *name)
{
GimpPalette *palette;
GimpGradient *gradient;
gradient = gimp_context_get_gradient (gimp_context_get_user ());
if (gradient)
{
/* Add names to entry */
gdouble dx, cur_x;
GimpRGB color;
gint sample_sz;
gint loop;
palette = GIMP_PALETTE (gimp_palette_new (name));
sample_sz = (gint) import_dialog->sample->value;
dx = 1.0 / (sample_sz - 1);
cur_x = 0;
for (loop = 0; loop < sample_sz; loop++)
{
gimp_gradient_get_color_at (gradient, cur_x, &color);
cur_x += dx;
gimp_palette_add_entry (palette, NULL, &color);
}
gimp_container_add (global_palette_factory->container,
GIMP_OBJECT (palette));
}
}
/* create a palette from a non-indexed image *******************************/
typedef struct _ImgColors ImgColors;
struct _ImgColors
{
guint count;
guint r_adj;
guint g_adj;
guint b_adj;
guchar r;
guchar g;
guchar b;
};
static gint count_color_entries = 0;
static GHashTable *
palette_import_store_colors (GHashTable *h_array,
guchar *colors,
guchar *colors_real,
gint sample_sz)
{
gpointer found_color = NULL;
ImgColors *new_color;
guint key_colors = colors[0] * 256 * 256 + colors[1] * 256 + colors[2];
if (h_array == NULL)
{
h_array = g_hash_table_new (g_direct_hash, g_direct_equal);
count_color_entries = 0;
}
else
{
found_color = g_hash_table_lookup (h_array, (gpointer) key_colors);
}
if (found_color == NULL)
{
if (count_color_entries > MAX_IMAGE_COLORS)
{
/* Don't add any more new ones */
return h_array;
}
count_color_entries++;
new_color = g_new (ImgColors, 1);
new_color->count = 1;
new_color->r_adj = 0;
new_color->g_adj = 0;
new_color->b_adj = 0;
new_color->r = colors[0];
new_color->g = colors[1];
new_color->b = colors[2];
g_hash_table_insert (h_array, (gpointer) key_colors, new_color);
}
else
{
new_color = (ImgColors *) found_color;
if(new_color->count < (G_MAXINT - 1))
new_color->count++;
/* Now do the adjustments ...*/
new_color->r_adj += (colors_real[0] - colors[0]);
new_color->g_adj += (colors_real[1] - colors[1]);
new_color->b_adj += (colors_real[2] - colors[2]);
/* Boundary conditions */
if(new_color->r_adj > (G_MAXINT - 255))
new_color->r_adj /= new_color->count;
if(new_color->g_adj > (G_MAXINT - 255))
new_color->g_adj /= new_color->count;
if(new_color->b_adj > (G_MAXINT - 255))
new_color->b_adj /= new_color->count;
}
return h_array;
}
static void
palette_import_create_sorted_list (gpointer key,
gpointer value,
gpointer user_data)
{
GSList **sorted_list = (GSList**) user_data;
ImgColors *color_tab = (ImgColors *) value;
*sorted_list = g_slist_prepend (*sorted_list, color_tab);
}
static gint
palette_import_sort_colors (gconstpointer a,
gconstpointer b)
{
ImgColors *s1 = (ImgColors *) a;
ImgColors *s2 = (ImgColors *) b;
if(s1->count > s2->count)
return -1;
if(s1->count < s2->count)
return 1;
return 0;
}
static void
palette_import_create_image_palette (gpointer data,
gpointer user_data)
{
GimpPalette *palette;
ImgColors *color_tab;
gint sample_sz;
gchar *lab;
GimpRGB color;
palette = (GimpPalette *) user_data;
color_tab = (ImgColors *) data;
sample_sz = (gint) import_dialog->sample->value;
if (palette->n_colors >= sample_sz)
return;
lab = g_strdup_printf ("%s (occurs %u)", _("Untitled"), color_tab->count);
/* Adjust the colors to the mean of the the sample */
gimp_rgba_set_uchar
(&color,
(guchar) color_tab->r + (color_tab->r_adj / color_tab->count),
(guchar) color_tab->g + (color_tab->g_adj / color_tab->count),
(guchar) color_tab->b + (color_tab->b_adj / color_tab->count),
255);
gimp_palette_add_entry (palette, lab, &color);
g_free (lab);
}
static gboolean
palette_import_color_print_remove (gpointer key,
gpointer value,
gpointer user_data)
{
g_free (value);
return TRUE;
}
static void
palette_import_image_make_palette (GHashTable *h_array,
guchar *name)
{
GimpPalette *palette;
GSList *sorted_list = NULL;
g_hash_table_foreach (h_array, palette_import_create_sorted_list,
&sorted_list);
sorted_list = g_slist_sort (sorted_list, palette_import_sort_colors);
palette = GIMP_PALETTE (gimp_palette_new (name));
g_slist_foreach (sorted_list, palette_import_create_image_palette, palette);
/* Free up used memory
* Note the same structure is on both the hash list and the sorted
* list. So only delete it once.
*/
g_hash_table_freeze (h_array);
g_hash_table_foreach_remove (h_array,
palette_import_color_print_remove, NULL);
g_hash_table_thaw (h_array);
g_hash_table_destroy (h_array);
g_slist_free (sorted_list);
gimp_container_add (global_palette_factory->container, GIMP_OBJECT (palette));
}
static void
palette_import_create_from_image (GImage *gimage,
gchar *pname)
{
PixelRegion imagePR;
guchar *image_data;
guchar *idata;
guchar rgb[MAX_CHANNELS];
guchar rgb_real[MAX_CHANNELS];
gint has_alpha, indexed;
gint width, height;
gint bytes, alpha;
gint i, j;
void *pr;
gint d_type;
GHashTable *store_array = NULL;
gint sample_sz;
gint threshold = 1;
sample_sz = (gint) import_dialog->sample->value;
if (gimage == NULL)
return;
/* Get the image information */
bytes = gimp_image_composite_bytes (gimage);
d_type = gimp_image_composite_type (gimage);
has_alpha = (d_type == RGBA_GIMAGE ||
d_type == GRAYA_GIMAGE ||
d_type == INDEXEDA_GIMAGE);
indexed = d_type == INDEXEDA_GIMAGE || d_type == INDEXED_GIMAGE;
width = gimage->width;
height = gimage->height;
pixel_region_init (&imagePR, gimp_image_composite (gimage), 0, 0,
width, height, FALSE);
alpha = bytes - 1;
threshold = (gint) import_dialog->threshold->value;
if(threshold < 1)
threshold = 1;
/* iterate over the entire image */
for (pr = pixel_regions_register (1, &imagePR);
pr != NULL;
pr = pixel_regions_process (pr))
{
image_data = imagePR.data;
for (i = 0; i < imagePR.h; i++)
{
idata = image_data;
for (j = 0; j < imagePR.w; j++)
{
/* Get the rgb values for the color */
gimp_image_get_color (gimage, d_type, rgb, idata);
memcpy (rgb_real, rgb, MAX_CHANNELS); /* Structure copy */
rgb[0] = (rgb[0] / threshold) * threshold;
rgb[1] = (rgb[1] / threshold) * threshold;
rgb[2] = (rgb[2] / threshold) * threshold;
store_array =
palette_import_store_colors (store_array, rgb, rgb_real,
sample_sz);
idata += bytes;
}
image_data += imagePR.rowstride;
}
}
/* Make palette from the store_array */
palette_import_image_make_palette (store_array, pname);
}
/* create a palette from an indexed image **********************************/
static void
palette_import_create_from_indexed (GImage *gimage,
gchar *pname)
{
GimpPalette *palette;
gint samples;
gint count;
GimpRGB color;
samples = (gint) import_dialog->sample->value;
if (gimage == NULL)
return;
if (gimp_image_base_type (gimage) != INDEXED)
return;
palette = GIMP_PALETTE (gimp_palette_new (pname));
for (count= 0; count < samples && count < gimage->num_cols; ++count)
{
gimp_rgba_set_uchar (&color,
gimage->cmap[count*3],
gimage->cmap[count*3+1],
gimage->cmap[count*3+2],
255);
gimp_palette_add_entry (palette, NULL, &color);
}
gimp_container_add (global_palette_factory->container, GIMP_OBJECT (palette));
}
/* the palette import action area callbacks ********************************/
@ -887,32 +553,53 @@ static void
palette_import_import_callback (GtkWidget *widget,
gpointer data)
{
gchar *pname;
GimpPalette *palette = NULL;
gchar *palette_name;
GimpGradient *gradient;
gint n_colors;
gint threshold;
if (! import_dialog)
return;
pname = gtk_entry_get_text (GTK_ENTRY (import_dialog->entry));
if (!pname || !strlen (pname))
pname = g_strdup ("tmp");
palette_name = gtk_entry_get_text (GTK_ENTRY (import_dialog->entry));
if (! (palette_name && strlen (palette_name)))
palette_name = g_strdup (_("Unnamed"));
else
pname = g_strdup (pname);
palette_name = g_strdup (palette_name);
gradient = gimp_context_get_gradient (gimp_context_get_user ());
n_colors = (gint) import_dialog->sample->value;
threshold = (gint) import_dialog->threshold->value;
switch (import_dialog->import_type)
{
case GRAD_IMPORT:
palette_import_create_from_grad (pname);
palette = gimp_palette_import_from_gradient (gradient,
palette_name,
n_colors);
break;
case IMAGE_IMPORT:
palette_import_create_from_image (import_dialog->gimage, pname);
palette = gimp_palette_import_from_image (import_dialog->gimage,
palette_name,
n_colors,
threshold);
break;
case INDEXED_IMPORT:
palette_import_create_from_indexed (import_dialog->gimage, pname);
break;
default:
palette = gimp_palette_import_from_indexed_image (import_dialog->gimage,
palette_name);
break;
}
g_free (palette_name);
if (palette)
gimp_container_add (global_palette_factory->container,
GIMP_OBJECT (palette));
palette_import_close_callback (NULL, NULL);
}