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gimp/app/colormap_dialog.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "apptypes.h"
#include "color_notebook.h"
#include "image_render.h"
#include "dialog_handler.h"
#include "colormap_dialog.h"
#include "colormaps.h"
#include "color_area.h"
#include "gdisplay.h"
#include "gimpdnd.h"
#include "gimpimage.h"
#include "gimpset.h"
#include "pdb/procedural_db.h"
#include "libgimp/gimpintl.h"
/* Add these features:
*
* load/save colormaps
* requantize
* add color--by clicking in the checked region
* all changes need to flush colormap lookup cache
*/
enum
{
SELECTED,
LAST_SIGNAL
};
static void gimp_colormap_dialog_class_init (GimpColormapDialogClass *klass);
static void gimp_colormap_dialog_init (GimpColormapDialog *colormap_dialog);
static void ipal_create_popup_menu (GimpColormapDialog *ipal);
/* indexed palette routines */
static void ipal_draw (GimpColormapDialog *ipal);
static void ipal_clear (GimpColormapDialog *ipal);
static void ipal_set_image (GimpColormapDialog *ipal,
GimpImage *gimage);
static void ipal_update_entries (GimpColormapDialog *ipal);
static void ipal_set_index (GimpColormapDialog *ipal,
gint i);
static void ipal_draw_cell (GimpColormapDialog *ipal,
gint col);
static void ipal_update_image_list (GimpColormapDialog *ipal);
/* indexed palette menu callbacks */
static void ipal_add_callback (GtkWidget *widget,
gpointer data);
static void ipal_edit_callback (GtkWidget *widget,
gpointer data);
static void ipal_close_callback (GtkWidget *widget,
gpointer data);
static void ipal_select_callback (ColorNotebook *color_notebook,
const GimpRGB *color,
ColorNotebookState state,
gpointer data);
/* event callback */
static gint ipal_area_events (GtkWidget *widget,
GdkEvent *event,
GimpColormapDialog *ipal);
/* create image menu */
static void image_menu_callback (GtkWidget *widget,
gpointer data);
static GtkWidget * create_image_menu (GimpColormapDialog *ipal,
GimpImage **image,
gint *,
GtkSignalFunc );
static void frame_size_alloc_cb (GtkFrame *frame,
GtkAllocation *alloc,
GimpColormapDialog *ipal);
static void window_size_req_cb (GtkWindow *win,
GtkRequisition *req,
GimpColormapDialog *ipal);
static void index_adjustment_change_cb (GtkAdjustment *adjustment,
GimpColormapDialog *ipal);
static void hex_entry_change_cb (GtkEntry *entry,
GimpColormapDialog *ipal);
static void set_addrem_cb (GimpSet *set,
GimpImage *image,
GimpColormapDialog *ipal);
static void image_rename_cb (GimpImage *img,
GimpColormapDialog *ipal);
static void image_cmap_change_cb (GimpImage *img,
gint ncol,
GimpColormapDialog *ipal);
static void palette_drag_color (GtkWidget *widget,
GimpRGB *color,
gpointer data);
static void palette_drop_color (GtkWidget *widget,
const GimpRGB *color,
gpointer data);
static guint gimp_colormap_dialog_signals[LAST_SIGNAL] = { 0 };
static GtkDialogClass *parent_class = NULL;
/* dnd stuff */
static GtkTargetEntry color_palette_target_table[] =
{
GIMP_TARGET_COLOR
};
static guint n_color_palette_targets = (sizeof (color_palette_target_table) /
sizeof (color_palette_target_table[0]));
GtkType
gimp_colormap_dialog_get_type (void)
{
GtkType gimp_colormap_dialog_type = 0;
if (! gimp_colormap_dialog_type)
{
static GtkTypeInfo info =
{
"GimpColormapDialog",
sizeof (GimpColormapDialog),
sizeof (GimpColormapDialogClass),
(GtkClassInitFunc) gimp_colormap_dialog_class_init,
(GtkObjectInitFunc) gimp_colormap_dialog_init,
NULL,
NULL,
NULL,
};
gimp_colormap_dialog_type = gtk_type_unique (GTK_TYPE_DIALOG, &info);
}
return gimp_colormap_dialog_type;
}
static void
gimp_colormap_dialog_class_init (GimpColormapDialogClass* klass)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass*) klass;
parent_class = gtk_type_class (GTK_TYPE_DIALOG);
gimp_colormap_dialog_signals[SELECTED] =
gtk_signal_new ("selected",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpColormapDialogClass,
selected),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, gimp_colormap_dialog_signals,
LAST_SIGNAL);
klass->selected = NULL;
}
static void
gimp_colormap_dialog_init (GimpColormapDialog *colormap_dialog)
{
colormap_dialog->image = NULL;
colormap_dialog->col_index = 0;
colormap_dialog->dnd_col_index = 0;
colormap_dialog->vbox = NULL;
colormap_dialog->palette = NULL;
colormap_dialog->image_menu = NULL;
colormap_dialog->popup_menu = NULL;
colormap_dialog->option_menu = NULL;
colormap_dialog->context = NULL;
colormap_dialog->event_handler = 0;
colormap_dialog->xn = 0;
colormap_dialog->yn = 0;
colormap_dialog->cellsize = 0;
colormap_dialog->index_spinbutton = NULL;
colormap_dialog->index_adjustment = NULL;
colormap_dialog->color_entry = NULL;
colormap_dialog->rename_handler = 0;
colormap_dialog->cmap_changed_handler = 0;
colormap_dialog->add_item = NULL;
colormap_dialog->color_notebook = NULL;
}
GimpColormapDialog *
gimp_colormap_dialog_create (GimpSet *context)
{
GimpColormapDialog *ipal;
GtkWidget *vbox;
GtkWidget *frame;
GtkWidget *util_box;
GtkWidget *label;
GtkWidget *hbox;
GtkWidget *hbox2;
GtkWidget *entry;
GtkWidget *evbox;
GtkAccelGroup *accel_group;
g_return_val_if_fail (context != NULL, NULL);
g_return_val_if_fail (GIMP_IS_SET (context), NULL);
ipal = gtk_type_new (GIMP_TYPE_COLORMAP_DIALOG);
/* The action area */
gimp_dialog_create_action_area (GTK_DIALOG (ipal),
_("Close"), ipal_close_callback,
ipal, NULL, NULL, TRUE, TRUE,
NULL);
ipal->image = NULL;
ipal->context = context;
ipal->cmap_changed_handler = gimp_set_add_handler (context,
"colormap_changed",
image_cmap_change_cb,
ipal);
ipal->rename_handler = gimp_set_add_handler (context,
"name_changed",
image_rename_cb,
ipal);
accel_group = gtk_accel_group_new ();
gtk_window_set_wmclass (GTK_WINDOW (ipal), "indexed_color_palette", "Gimp");
dialog_register (GTK_WIDGET (ipal));
gtk_window_set_policy (GTK_WINDOW (ipal), TRUE, TRUE, TRUE);
gtk_window_set_title (GTK_WINDOW (ipal), _("Indexed Color Palette"));
gtk_window_add_accel_group (GTK_WINDOW (ipal), accel_group);
gtk_signal_connect (GTK_OBJECT (ipal), "delete_event",
GTK_SIGNAL_FUNC (gtk_widget_hide_on_delete),
NULL);
ipal->vbox = vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (ipal)->vbox), vbox);
/* The hbox to hold the command menu and image option menu box */
util_box = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (vbox), util_box, FALSE, FALSE, 0);
/* The GIMP image option menu */
label = gtk_label_new (_("Image:"));
gtk_box_pack_start (GTK_BOX (util_box), label, FALSE, FALSE, 0);
ipal->option_menu = GTK_OPTION_MENU (gtk_option_menu_new ());
gtk_box_pack_start (GTK_BOX (util_box),
GTK_WIDGET (ipal->option_menu),
TRUE, TRUE, 0);
hbox2 = gtk_hbox_new (TRUE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox2, TRUE, TRUE, 0);
ipal_create_popup_menu (ipal);
/* The palette frame */
evbox = gtk_event_box_new ();
gtk_container_set_resize_mode (GTK_CONTAINER (evbox),
GTK_RESIZE_QUEUE);
gtk_widget_set_usize (GTK_WIDGET (evbox), -1, 60);
gtk_signal_connect (GTK_OBJECT (evbox), "size_request",
GTK_SIGNAL_FUNC (window_size_req_cb),
ipal);
gtk_signal_connect(GTK_OBJECT (evbox), "size_allocate",
GTK_SIGNAL_FUNC (frame_size_alloc_cb),
ipal);
gtk_box_pack_start (GTK_BOX (hbox2), evbox, TRUE, TRUE, 0);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_container_add (GTK_CONTAINER (evbox), frame);
ipal->palette = GTK_PREVIEW (gtk_preview_new (GTK_PREVIEW_COLOR));
gtk_preview_size (ipal->palette, 256, 256);
gtk_widget_set_events (GTK_WIDGET(ipal->palette), GDK_BUTTON_PRESS_MASK);
ipal->event_handler =
gtk_signal_connect (GTK_OBJECT (ipal->palette), "event",
GTK_SIGNAL_FUNC (ipal_area_events),
ipal);
gtk_signal_handler_block (GTK_OBJECT (ipal->palette),
ipal->event_handler);
gtk_container_add (GTK_CONTAINER (frame), GTK_WIDGET (ipal->palette));
/* dnd stuff */
gtk_drag_source_set (GTK_WIDGET (ipal->palette),
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
color_palette_target_table, n_color_palette_targets,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
gimp_dnd_color_source_set (GTK_WIDGET (ipal->palette),
palette_drag_color, ipal);
gtk_drag_dest_set (GTK_WIDGET (ipal->palette),
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
color_palette_target_table, n_color_palette_targets,
GDK_ACTION_COPY);
gimp_dnd_color_dest_set (GTK_WIDGET (ipal->palette),
palette_drop_color, ipal);
/* some helpful hints */
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
label = gtk_label_new (_("Index:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
ipal->index_spinbutton =
gimp_spin_button_new ((GtkObject **) &ipal->index_adjustment,
0, 0, 0, 1, 10, 10, 1.0, 0);
gtk_signal_connect (GTK_OBJECT (ipal->index_adjustment), "value_changed",
GTK_SIGNAL_FUNC (index_adjustment_change_cb),
ipal);
gtk_box_pack_start (GTK_BOX (hbox), ipal->index_spinbutton, FALSE, FALSE, 0);
label = gtk_label_new (_("Hex Triplet:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
entry = gtk_entry_new_with_max_length (7);
ipal->color_entry = GTK_ENTRY (entry);
gtk_signal_connect (GTK_OBJECT (entry), "activate",
GTK_SIGNAL_FUNC (hex_entry_change_cb),
ipal);
gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
/* Connect the "F1" help key */
gimp_help_connect_help_accel (GTK_WIDGET (ipal),
gimp_standard_help_func,
"dialogs/indexed_palette.html");
gtk_widget_show_all (vbox);
/* gtk_widget_show (ipal); */
ipal_update_image_list (ipal);
gtk_signal_connect (GTK_OBJECT (context), "add",
GTK_SIGNAL_FUNC (set_addrem_cb),
ipal);
gtk_signal_connect (GTK_OBJECT (context), "remove",
GTK_SIGNAL_FUNC (set_addrem_cb),
ipal);
return ipal;
}
GimpImage *
gimp_colormap_dialog_image (const GimpColormapDialog *colormap_dialog)
{
g_return_val_if_fail (colormap_dialog != NULL, NULL);
g_return_val_if_fail (GIMP_IS_COLORMAP_DIALOG (colormap_dialog), NULL);
return colormap_dialog->image;
}
gint
gimp_colormap_dialog_col_index (const GimpColormapDialog *colormap_dialog)
{
g_return_val_if_fail (colormap_dialog != NULL, 0);
g_return_val_if_fail (GIMP_IS_COLORMAP_DIALOG(colormap_dialog), 0);
return colormap_dialog->col_index;
}
void
gimp_colormap_dialog_selected (GimpColormapDialog *colormap_dialog)
{
g_return_if_fail (colormap_dialog);
g_return_if_fail (GIMP_IS_COLORMAP_DIALOG(colormap_dialog));
gtk_signal_emit (GTK_OBJECT (colormap_dialog),
gimp_colormap_dialog_signals[SELECTED]);
}
/* private functions */
static void
palette_drag_color (GtkWidget *widget,
GimpRGB *color,
gpointer data)
{
GimpColormapDialog *ipal = (GimpColormapDialog *) data;
guint col = ipal->dnd_col_index;
GimpImage *gimage;
gimage = ipal->image;
gimp_rgba_set_uchar (color,
gimage->cmap[col * 3 + 0],
gimage->cmap[col * 3 + 1],
gimage->cmap[col * 3 + 2],
255);
}
static void
palette_drop_color (GtkWidget *widget,
const GimpRGB *color,
gpointer data)
{
GimpColormapDialog *ipal = (GimpColormapDialog *) data;
if (!GTK_WIDGET_IS_SENSITIVE (ipal->vbox) ||
!(ipal->image->num_cols < 256))
return;
gimp_rgb_get_uchar (color,
&ipal->image->cmap[ipal->image->num_cols * 3],
&ipal->image->cmap[ipal->image->num_cols * 3 + 1],
&ipal->image->cmap[ipal->image->num_cols * 3 + 2]);
ipal->image->num_cols++;
gimp_image_colormap_changed (ipal->image, -1);
}
static void
ipal_create_popup_menu (GimpColormapDialog *ipal)
{
GtkWidget *menu;
GtkWidget *menu_item;
ipal->popup_menu = menu = gtk_menu_new ();
menu_item = gtk_menu_item_new_with_label (_("Add"));
gtk_menu_append (GTK_MENU (menu), menu_item);
gtk_signal_connect (GTK_OBJECT (menu_item), "activate",
GTK_SIGNAL_FUNC (ipal_add_callback),
(gpointer) ipal);
gtk_widget_show (menu_item);
ipal->add_item = menu_item;
menu_item = gtk_menu_item_new_with_label (_("Edit"));
gtk_menu_append (GTK_MENU (menu), menu_item);
gtk_signal_connect (GTK_OBJECT (menu_item), "activate",
GTK_SIGNAL_FUNC (ipal_edit_callback),
(gpointer) ipal);
gtk_widget_show (menu_item);
}
static void
ipal_update_image_list (GimpColormapDialog* ipal)
{
gint default_index;
GimpImage *default_gimage;
default_gimage = ipal->image;
ipal->image_menu =
create_image_menu (ipal,
&default_gimage,
&default_index,
image_menu_callback);
gtk_option_menu_set_menu (ipal->option_menu, ipal->image_menu);
if (default_index != -1)
{
if (! GTK_WIDGET_IS_SENSITIVE (ipal->vbox))
gtk_widget_set_sensitive (ipal->vbox, TRUE);
gtk_option_menu_set_history (ipal->option_menu, default_index);
}
else
{
if (GTK_WIDGET_IS_SENSITIVE (ipal->vbox))
{
gtk_widget_set_sensitive (ipal->vbox, FALSE);
}
}
ipal_set_image (ipal, default_gimage);
}
static void
frame_size_alloc_cb (GtkFrame *frame,
GtkAllocation *alloc,
GimpColormapDialog *ipal)
{
GtkWidget *widget = GTK_WIDGET (frame);
GtkAllocation allocation = *alloc;
GtkRequisition requisition;
if (ipal->image)
ipal_draw (ipal);
else
ipal_clear (ipal);
widget = GTK_BIN (widget)->child;
gtk_widget_size_request (widget, &requisition);
allocation.x = MAX (0, allocation.width - requisition.width) / 2;
allocation.y = MAX (0, allocation.height - requisition.height) / 2;
allocation.width = MIN (allocation.width, requisition.width);
allocation.height = MIN (allocation.height, requisition.height);
gtk_widget_size_allocate (widget, &allocation);
}
static void
window_size_req_cb (GtkWindow *window,
GtkRequisition *requsition,
GimpColormapDialog *ipal)
{
requsition->width = GTK_WIDGET (window)->allocation.width;
requsition->height = GTK_WIDGET (window)->allocation.height;
}
#define MIN_CELL_SIZE 4
static void
ipal_draw (GimpColormapDialog* ipal)
{
GimpImage *gimage;
gint i, j, k, l, b;
gint col;
guchar *row;
gint cellsize, ncol, xn, yn, width, height;
GtkWidget *palette;
GtkContainer *parent;
g_return_if_fail (ipal);
gimage = ipal->image;
g_return_if_fail (gimage);
palette = GTK_WIDGET (ipal->palette);
parent = GTK_CONTAINER (palette->parent);
width = GTK_WIDGET (parent)->allocation.width - parent->border_width;
height = GTK_WIDGET (parent)->allocation.height - parent->border_width;
ncol = gimage->num_cols;
if (!ncol)
{
ipal_clear (ipal);
return;
}
cellsize = sqrt(width * height / ncol);
while (cellsize >= MIN_CELL_SIZE
&& (xn = width/cellsize) * (yn = height/cellsize) < ncol)
cellsize--;
if (cellsize < MIN_CELL_SIZE)
{
cellsize = MIN_CELL_SIZE;
xn = yn = ceil (sqrt (ncol));
}
yn = ((ncol + xn - 1) / xn);
width = xn * cellsize;
height = yn * cellsize;
ipal->xn = xn;
ipal->yn = yn;
ipal->cellsize = cellsize;
gtk_preview_size (ipal->palette, width, height);
row = g_new (guchar, xn * cellsize * 3);
col = 0;
for (i = 0; i < yn; i++)
{
for (j = 0; j < xn && col < ncol; j++, col++)
{
for (k = 0; k < cellsize; k++)
for (b = 0; b < 3; b++)
row[(j * cellsize + k) * 3 + b] = gimage->cmap[col * 3 + b];
}
for (k = 0; k < cellsize; k++)
{
for (l = j * cellsize; l < xn * cellsize; l++)
for (b = 0; b < 3; b++)
row[l * 3 + b] = ((((i * cellsize + k) & 0x4) ? (l) : (l + 0x4)) & 0x4) ?
blend_light_check[0] : blend_dark_check[0];
gtk_preview_draw_row (ipal->palette, row, 0,
i * cellsize + k, cellsize * xn);
}
}
ipal_draw_cell (ipal, ipal->col_index);
g_free (row);
gtk_widget_draw (palette, NULL);
}
static void
ipal_draw_cell (GimpColormapDialog *ipal,
gint col)
{
guchar *row;
gint cellsize, x, y, k;
GdkRectangle rec;
g_assert (ipal);
g_assert (ipal->image);
g_assert (col < ipal->image->num_cols);
cellsize = ipal->cellsize;
row = g_new (guchar, cellsize * 3);
x = (col % ipal->xn) * cellsize;
y = (col / ipal->xn) * cellsize;
if (col == ipal->col_index)
{
for(k = 0; k < cellsize; k++)
row[k*3] = row[k*3+1] = row[k*3+2] = (k & 1) * 255;
gtk_preview_draw_row (ipal->palette, row, x, y, cellsize);
if (!(cellsize & 1))
for (k = 0; k < cellsize; k++)
row[k*3] = row[k*3+1] = row[k*3+2] = ((x+y+1) & 1) * 255;
gtk_preview_draw_row (ipal->palette, row, x, y+cellsize-1, cellsize);
row[0]=row[1]=row[2]=255;
row[cellsize*3-3] = row[cellsize*3-2] = row[cellsize*3-1]
= 255 * (cellsize & 1);
for (k = 1; k < cellsize - 1; k++)
{
row[k*3] = ipal->image->cmap[col * 3];
row[k*3+1] = ipal->image->cmap[col * 3 + 1];
row[k*3+2] = ipal->image->cmap[col * 3 + 2];
}
for (k = 1; k < cellsize - 1; k+=2)
gtk_preview_draw_row (ipal->palette, row, x, y+k, cellsize);
row[0] = row[1] = row[2] = 0;
row[cellsize*3-3] = row[cellsize*3-2] = row[cellsize*3-1]
= 255 * ((cellsize+1) & 1);
for (k = 2; k < cellsize - 1; k += 2)
gtk_preview_draw_row (ipal->palette, row, x, y+k, cellsize);
}
else
{
for (k = 0; k < cellsize; k++)
{
row[k*3] = ipal->image->cmap[col * 3];
row[k*3+1] = ipal->image->cmap[col * 3 + 1];
row[k*3+2] = ipal->image->cmap[col * 3 + 2];
}
for (k = 0; k < cellsize; k++)
gtk_preview_draw_row (ipal->palette, row, x, y+k, cellsize);
}
rec.x = x;
rec.y = y;
rec.width = rec.height = cellsize;
gtk_widget_draw (GTK_WIDGET (ipal->palette), &rec);
}
static void
ipal_clear (GimpColormapDialog* ipal)
{
gint i, j;
gint offset;
gint width, height;
guchar *row = NULL;
GtkWidget *palette;
g_return_if_fail (ipal);
palette = GTK_WIDGET (ipal->palette);
/* Watch out for negative values (at least on Win32) */
width = (int) (gint16) palette->allocation.width;
height = (int) (gint16) palette->allocation.height;
if (width > 0)
row = g_new (guchar, width * 3);
gtk_preview_size (ipal->palette, width, height);
for (i = 0; i < height; i += 4)
{
offset = (i & 0x4) ? 0x4 : 0x0;
for (j = 0; j < width; j++)
{
row[j * 3 + 0] = row[j * 3 + 1] = row[j * 3 + 2] =
((j + offset) & 0x4) ? blend_light_check[0] : blend_dark_check[0];
}
for (j = 0; j < 4 && i+j < height; j++)
gtk_preview_draw_row (ipal->palette, row, 0, i + j, width);
}
if (width > 0)
g_free (row);
gtk_widget_draw (palette, NULL);
}
static void
ipal_update_entries (GimpColormapDialog *ipal)
{
if (!ipal->image)
{
gtk_widget_set_sensitive (ipal->index_spinbutton, FALSE);
gtk_widget_set_sensitive (GTK_WIDGET (ipal->color_entry), FALSE);
gtk_adjustment_set_value (ipal->index_adjustment, 0);
gtk_entry_set_text (ipal->color_entry, "");
}
else
{
gchar *string;
guchar *col;
gtk_adjustment_set_value (ipal->index_adjustment, ipal->col_index);
col = &ipal->image->cmap[ipal->col_index * 3];
string = g_strdup_printf ("#%02x%02x%02x", col[0], col[1], col[2]);
gtk_entry_set_text (ipal->color_entry, string);
g_free (string);
gtk_widget_set_sensitive (ipal->index_spinbutton, TRUE);
gtk_widget_set_sensitive (GTK_WIDGET (ipal->color_entry), TRUE);
}
}
static void
ipal_set_index (GimpColormapDialog *ipal,
gint i)
{
if (i != ipal->col_index)
{
gint old = ipal->col_index;
ipal->col_index = i;
ipal->dnd_col_index = i;
ipal_draw_cell (ipal, old);
ipal_draw_cell (ipal, i);
ipal_update_entries (ipal);
}
}
static void
index_adjustment_change_cb (GtkAdjustment *adjustment,
GimpColormapDialog *ipal)
{
g_return_if_fail (ipal);
if (!ipal->image)
return;
ipal_set_index (ipal, (gint) (adjustment->value + 0.5));
ipal_update_entries (ipal);
}
static void
hex_entry_change_cb (GtkEntry *entry,
GimpColormapDialog *ipal)
{
gchar *s;
gulong i;
g_return_if_fail (ipal);
g_return_if_fail (ipal->image);
s = gtk_entry_get_text (entry);
if (sscanf (s, "#%lx", &i))
{
guchar *c = &ipal->image->cmap[3 * ipal->col_index];
c[0] = (i & 0xFF0000) >> 16;
c[1] = (i & 0x00FF00) >> 8;
c[2] = (i & 0x0000FF);
gimp_image_colormap_changed (ipal->image, ipal->col_index);
}
ipal_update_entries (ipal);
}
static void
set_addrem_cb (GimpSet *set,
GimpImage *image,
GimpColormapDialog *ipal)
{
ipal_update_image_list (ipal);
}
static void
image_rename_cb (GimpImage *img,
GimpColormapDialog *ipal)
{
ipal_update_image_list (ipal);
}
static void
image_cmap_change_cb (GimpImage *img,
gint ncol,
GimpColormapDialog *ipal)
{
if (img == ipal->image && gimp_image_base_type (img) == INDEXED)
{
if (ncol < 0)
{
ipal_draw (ipal);
gtk_container_queue_resize (GTK_CONTAINER (ipal));
}
else
{
ipal_draw_cell (ipal, ncol);
}
if (ncol == ipal->col_index)
ipal_update_entries (ipal);
gtk_widget_set_sensitive (ipal->add_item, (img->num_cols < 256));
if ((ipal->index_adjustment->upper + 1) < img->num_cols)
{
ipal->index_adjustment->upper = img->num_cols - 1;
gtk_adjustment_changed (ipal->index_adjustment);
}
}
else
{
ipal_update_image_list (ipal);
}
gdisplays_flush_now ();
}
static void
ipal_set_image (GimpColormapDialog *ipal,
GimpImage *gimage)
{
g_assert (ipal);
if (ipal->image)
{
ipal->image = gimage;
if (!gimage)
{
gtk_signal_handler_block (GTK_OBJECT (ipal->palette),
ipal->event_handler);
if (GTK_WIDGET_MAPPED (GTK_WIDGET (ipal)))
ipal_clear (ipal);
}
}
ipal->col_index = 0;
ipal->dnd_col_index = 0;
if (gimage)
{
if (!ipal->image)
gtk_signal_handler_unblock (GTK_OBJECT (ipal->palette),
ipal->event_handler);
g_return_if_fail (gimp_set_have (ipal->context, gimage));
g_return_if_fail (gimp_image_base_type (gimage) == INDEXED);
ipal->image = gimage;
ipal_draw (ipal);
gtk_container_queue_resize (GTK_CONTAINER (ipal));
ipal->index_adjustment->upper = ipal->image->num_cols - 1;
gtk_adjustment_changed (ipal->index_adjustment);
}
else
{
if (ipal->color_notebook)
color_notebook_hide (ipal->color_notebook);
ipal->index_adjustment->upper = 0;
gtk_adjustment_changed (ipal->index_adjustment);
}
gtk_widget_set_sensitive (ipal->add_item,
(gimage && gimage->num_cols < 256));
ipal_update_entries (ipal);
}
static void
ipal_add_callback (GtkWidget *widget,
gpointer data)
{
GimpColormapDialog *ipal = data;
g_return_if_fail (ipal);
g_return_if_fail (ipal->image->num_cols < 256);
memcpy (&ipal->image->cmap[ipal->image->num_cols * 3],
&ipal->image->cmap[ipal->col_index * 3],
3);
ipal->image->num_cols++;
gimp_image_colormap_changed (ipal->image, -1);
}
static void
ipal_edit_callback (GtkWidget *widget,
gpointer data)
{
GimpColormapDialog *ipal = data;
GimpRGB color;
g_return_if_fail (ipal);
gimp_rgba_set_uchar (&color,
ipal->image->cmap[ipal->col_index * 3],
ipal->image->cmap[ipal->col_index * 3 + 1],
ipal->image->cmap[ipal->col_index * 3 + 2],
255);
if (! ipal->color_notebook)
{
ipal->color_notebook
= color_notebook_new (_("Edit Indexed Color"),
(const GimpRGB *) &color,
ipal_select_callback, ipal, FALSE, FALSE);
}
else
{
color_notebook_show (ipal->color_notebook);
color_notebook_set_color (ipal->color_notebook, &color);
}
}
static void
ipal_close_callback (GtkWidget *widget,
gpointer data)
{
GimpColormapDialog* ipal = data;
g_assert (ipal);
gtk_widget_hide (GTK_WIDGET (ipal));
}
static void
ipal_select_callback (ColorNotebook *color_notebook,
const GimpRGB *color,
ColorNotebookState state,
gpointer data)
{
GimpImage *gimage;
GimpColormapDialog *ipal = data;
g_return_if_fail (ipal);
g_return_if_fail (ipal->image);
g_return_if_fail (ipal->color_notebook);
gimage = ipal->image;
switch (state)
{
case COLOR_NOTEBOOK_UPDATE:
break;
case COLOR_NOTEBOOK_OK:
gimp_rgb_get_uchar (color,
&gimage->cmap[ipal->col_index * 3 + 0],
&gimage->cmap[ipal->col_index * 3 + 1],
&gimage->cmap[ipal->col_index * 3 + 2]);
gimp_image_colormap_changed (gimage, ipal->col_index);
/* Fall through */
case COLOR_NOTEBOOK_CANCEL:
color_notebook_hide (ipal->color_notebook);
}
}
static gint
ipal_area_events (GtkWidget *widget,
GdkEvent *event,
GimpColormapDialog *ipal)
{
GimpImage *gimage;
GdkEventButton *bevent;
guchar r, g, b;
guint col;
g_assert (ipal);
gimage = ipal->image;
g_assert (gimage);
switch (event->type)
{
case GDK_BUTTON_PRESS:
bevent = (GdkEventButton *) event;
if (bevent->button < 1 || bevent->button > 3)
return FALSE;
if (!(bevent->y < ipal->cellsize * ipal->yn
&& bevent->x < ipal->cellsize * ipal->xn))
return FALSE;
col = ipal->xn * ((int)bevent->y / ipal->cellsize)
+ ((int)bevent->x / ipal->cellsize);
if (col >= ipal->image->num_cols)
return FALSE;
r = gimage->cmap[col * 3 + 0];
g = gimage->cmap[col * 3 + 1];
b = gimage->cmap[col * 3 + 2];
switch (bevent->button)
{
case 1:
ipal_set_index (ipal, col);
gimp_colormap_dialog_selected (ipal);
break;
case 2:
ipal->dnd_col_index = col;
break;
case 3:
ipal_set_index (ipal, col);
gtk_menu_popup (GTK_MENU (ipal->popup_menu), NULL, NULL,
NULL, NULL, 3,
bevent->time);
break;
default:
break;
}
break;
default:
break;
}
return FALSE;
}
static void
image_menu_callback (GtkWidget *widget,
gpointer data)
{
GimpColormapDialog* ipal = gtk_object_get_data (GTK_OBJECT (widget),
"colormap_dialog");
GimpImage* image = GIMP_IMAGE (data);
g_assert (ipal);
g_assert (image);
ipal_set_image (ipal, image);
}
typedef struct
{
GimpImage **def;
gint *default_index;
GtkSignalFunc callback;
GtkWidget *menu;
gint num_items;
GimpImage *id;
GimpColormapDialog *ipal;
} IMCBData;
static void
create_image_menu_cb (gpointer im,
gpointer d)
{
GimpImage *gimage = GIMP_IMAGE (im);
IMCBData *data = (IMCBData *) d;
gchar *image_name;
gchar *menu_item_label;
GtkWidget *menu_item;
if (gimp_image_base_type (gimage) != INDEXED)
return;
/* make sure the default index gets set to _something_, if possible */
if (*data->default_index == -1)
{
data->id = gimage;
*data->default_index = data->num_items;
}
if (gimage == *data->def)
{
data->id = *data->def;
*data->default_index = data->num_items;
}
image_name = g_basename (gimp_image_filename (gimage));
menu_item_label = g_strdup_printf ("%s-%d", image_name,
pdb_image_to_id (gimage));
menu_item = gtk_menu_item_new_with_label (menu_item_label);
gtk_object_set_data (GTK_OBJECT (menu_item), "colormap_dialog", data->ipal);
gtk_signal_connect (GTK_OBJECT (menu_item), "activate",
data->callback,
gimage);
gtk_container_add (GTK_CONTAINER (data->menu), menu_item);
gtk_widget_show (menu_item);
g_free (menu_item_label);
data->num_items ++;
}
static GtkWidget *
create_image_menu (GimpColormapDialog *ipal,
GimpImage **def,
gint *default_index,
GtkSignalFunc callback)
{
IMCBData data;
data.def = def;
data.default_index = default_index;
data.callback = callback;
data.menu = gtk_menu_new ();
data.num_items = 0;
data.id = NULL;
data.ipal = ipal;
*default_index = -1;
gimp_set_foreach (ipal->context, create_image_menu_cb, &data);
if (!data.num_items)
{
GtkWidget* menu_item;
menu_item = gtk_menu_item_new_with_label (_("none"));
gtk_container_add (GTK_CONTAINER (data.menu), menu_item);
gtk_widget_show (menu_item);
}
*def = data.id;
return data.menu;
}
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