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gimp/app/gui/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>
#ifdef __GNUC__
#warning GTK_DISABLE_DEPRECATED
#endif
#undef GTK_DISABLE_DEPRECATED
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "gui-types.h"
#include "core/gimpcontainer.h"
#include "core/gimpimage.h"
#include "core/gimpmarshal.h"
#include "display/gimpdisplayshell-render.h"
#include "widgets/gimpdnd.h"
#include "color-notebook.h"
#include "colormap-dialog.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,
gint start_row);
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);
/* 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_select_callback (ColorNotebook *color_notebook,
const GimpRGB *color,
ColorNotebookState state,
gpointer data);
/* event callback */
static gint ipal_area_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpColormapDialog *ipal);
/* create image menu */
static void ipal_area_size_allocate (GtkWidget *widget,
GtkAllocation *allocation,
GimpColormapDialog *ipal);
static void index_adjustment_change_cb (GtkAdjustment *adjustment,
GimpColormapDialog *ipal);
static void hex_entry_change_cb (GtkEntry *entry,
GimpColormapDialog *ipal);
static void image_mode_changed_cb (GimpImage *gimage,
GimpColormapDialog *ipal);
static void image_colormap_changed_cb (GimpImage *gimage,
gint ncol,
GimpColormapDialog *ipal);
static void ipal_drag_color (GtkWidget *widget,
GimpRGB *color,
gpointer data);
static void ipal_drop_color (GtkWidget *widget,
const GimpRGB *color,
gpointer data);
static guint gimp_colormap_dialog_signals[LAST_SIGNAL] = { 0 };
static GtkVBoxClass *parent_class = NULL;
/* dnd stuff */
static GtkTargetEntry color_palette_target_table[] =
{
GIMP_TARGET_COLOR
};
GType
gimp_colormap_dialog_get_type (void)
{
static GType gcd_type = 0;
if (! gcd_type)
{
static const GTypeInfo gcd_info =
{
sizeof (GimpColormapDialogClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_colormap_dialog_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpColormapDialog),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_colormap_dialog_init,
};
gcd_type = g_type_register_static (GTK_TYPE_VBOX,
"GimpColormapDialog",
&gcd_info, 0);
}
return gcd_type;
}
static void
gimp_colormap_dialog_class_init (GimpColormapDialogClass* klass)
{
parent_class = g_type_class_peek_parent (klass);
gimp_colormap_dialog_signals[SELECTED] =
g_signal_new ("selected",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpColormapDialogClass, selected),
NULL, NULL,
gimp_marshal_VOID__VOID,
G_TYPE_NONE, 0);
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->palette = NULL;
colormap_dialog->image_menu = NULL;
colormap_dialog->popup_menu = NULL;
colormap_dialog->option_menu = NULL;
colormap_dialog->xn = 0;
colormap_dialog->yn = 0;
colormap_dialog->cellsize = 0;
colormap_dialog->index_adjustment = NULL;
colormap_dialog->index_spinbutton = NULL;
colormap_dialog->color_entry = NULL;
colormap_dialog->add_item = NULL;
colormap_dialog->color_notebook = NULL;
}
GtkWidget *
gimp_colormap_dialog_new (GimpImage *gimage)
{
GimpColormapDialog *ipal;
GtkWidget *frame;
GtkWidget *table;
g_return_val_if_fail (! gimage || GIMP_IS_IMAGE (gimage), NULL);
ipal = g_object_new (GIMP_TYPE_COLORMAP_DIALOG, NULL);
gtk_box_set_spacing (GTK_BOX (ipal), 2);
ipal_create_popup_menu (ipal);
/* The palette frame */
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (ipal), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
ipal->palette = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_widget_set_size_request (ipal->palette, -1, 60);
gtk_preview_set_expand (GTK_PREVIEW (ipal->palette), TRUE);
gtk_widget_add_events (ipal->palette, GDK_BUTTON_PRESS_MASK);
gtk_container_add (GTK_CONTAINER (frame), ipal->palette);
gtk_widget_show (ipal->palette);
g_signal_connect_after (G_OBJECT (ipal->palette), "size_allocate",
G_CALLBACK (ipal_area_size_allocate),
ipal);
g_signal_connect (G_OBJECT (ipal->palette), "button_press_event",
G_CALLBACK (ipal_area_button_press),
ipal);
/* dnd stuff */
gtk_drag_source_set (ipal->palette,
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
color_palette_target_table,
G_N_ELEMENTS (color_palette_target_table),
GDK_ACTION_COPY | GDK_ACTION_MOVE);
gimp_dnd_color_source_set (ipal->palette, ipal_drag_color, ipal);
gtk_drag_dest_set (ipal->palette,
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
color_palette_target_table,
G_N_ELEMENTS (color_palette_target_table),
GDK_ACTION_COPY);
gimp_dnd_color_dest_set (ipal->palette, ipal_drop_color, ipal);
/* some helpful hints */
table = gtk_table_new (2, 2, FALSE);
gtk_container_set_border_width (GTK_CONTAINER (table), 2);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 2);
gtk_box_pack_end (GTK_BOX (ipal), table, FALSE, FALSE, 0);
gtk_widget_show (table);
ipal->index_spinbutton =
gimp_spin_button_new ((GtkObject **) &ipal->index_adjustment,
0, 0, 0, 1, 10, 10, 1.0, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Color Index:"), 1.0, 0.5,
ipal->index_spinbutton, 1, TRUE);
g_signal_connect (G_OBJECT (ipal->index_adjustment), "value_changed",
G_CALLBACK (index_adjustment_change_cb),
ipal);
ipal->color_entry = gtk_entry_new ();
gtk_entry_set_max_length (GTK_ENTRY (ipal->color_entry), 7);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Hex Triplet:"), 1.0, 0.5,
ipal->color_entry, 1, TRUE);
g_signal_connect (G_OBJECT (ipal->color_entry), "activate",
G_CALLBACK (hex_entry_change_cb),
ipal);
gimp_colormap_dialog_set_image (ipal, gimage);
return GTK_WIDGET (ipal);
}
void
gimp_colormap_dialog_selected (GimpColormapDialog *colormap_dialog)
{
g_return_if_fail (GIMP_IS_COLORMAP_DIALOG (colormap_dialog));
g_signal_emit (G_OBJECT (colormap_dialog),
gimp_colormap_dialog_signals[SELECTED] ,0);
}
void
gimp_colormap_dialog_set_image (GimpColormapDialog *ipal,
GimpImage *gimage)
{
g_return_if_fail (GIMP_IS_COLORMAP_DIALOG (ipal));
g_return_if_fail (! gimage || GIMP_IS_IMAGE (gimage));
if (ipal->image)
{
g_signal_handlers_disconnect_by_func (G_OBJECT (ipal->image),
image_mode_changed_cb,
ipal);
g_signal_handlers_disconnect_by_func (G_OBJECT (ipal->image),
image_colormap_changed_cb,
ipal);
if (! gimage || (gimp_image_base_type (gimage) != GIMP_INDEXED))
{
if (ipal->color_notebook)
color_notebook_hide (ipal->color_notebook);
ipal->index_adjustment->upper = 0;
gtk_adjustment_changed (ipal->index_adjustment);
if (GTK_WIDGET_MAPPED (GTK_WIDGET (ipal)))
ipal_clear (ipal, -1);
}
}
ipal->image = gimage;
ipal->col_index = 0;
ipal->dnd_col_index = 0;
if (gimage)
{
g_signal_connect (G_OBJECT (gimage), "mode_changed",
G_CALLBACK (image_mode_changed_cb),
ipal);
g_signal_connect (G_OBJECT (gimage), "colormap_changed",
G_CALLBACK (image_colormap_changed_cb),
ipal);
if (gimp_image_base_type (gimage) == GIMP_INDEXED)
{
ipal_draw (ipal);
ipal->index_adjustment->upper = ipal->image->num_cols - 1;
gtk_adjustment_changed (ipal->index_adjustment);
gtk_widget_set_sensitive (ipal->add_item,
gimage->num_cols < 256);
}
}
ipal_update_entries (ipal);
}
GimpImage *
gimp_colormap_dialog_get_image (GimpColormapDialog *colormap_dialog)
{
g_return_val_if_fail (GIMP_IS_COLORMAP_DIALOG (colormap_dialog), NULL);
return colormap_dialog->image;
}
gint
gimp_colormap_dialog_col_index (GimpColormapDialog *colormap_dialog)
{
g_return_val_if_fail (GIMP_IS_COLORMAP_DIALOG (colormap_dialog), 0);
return colormap_dialog->col_index;
}
/* private functions */
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_shell_append (GTK_MENU_SHELL (menu), menu_item);
gtk_widget_show (menu_item);
g_signal_connect (G_OBJECT (menu_item), "activate",
G_CALLBACK (ipal_add_callback),
ipal);
ipal->add_item = menu_item;
menu_item = gtk_menu_item_new_with_label (_("Edit"));
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
gtk_widget_show (menu_item);
g_signal_connect (G_OBJECT (menu_item), "activate",
G_CALLBACK (ipal_edit_callback),
ipal);
}
static void
ipal_drag_color (GtkWidget *widget,
GimpRGB *color,
gpointer data)
{
GimpColormapDialog *ipal;
GimpImage *gimage;
ipal = (GimpColormapDialog *) data;
gimage = ipal->image;
if (gimage && (gimp_image_base_type (gimage) == GIMP_INDEXED))
{
guint col;
col = ipal->dnd_col_index;
gimp_rgba_set_uchar (color,
gimage->cmap[col * 3 + 0],
gimage->cmap[col * 3 + 1],
gimage->cmap[col * 3 + 2],
255);
}
}
static void
ipal_drop_color (GtkWidget *widget,
const GimpRGB *color,
gpointer data)
{
GimpColormapDialog *ipal;
GimpImage *gimage;
ipal = (GimpColormapDialog *) data;
gimage = ipal->image;
if (gimage && (gimp_image_base_type (gimage) == GIMP_INDEXED) &&
gimage->num_cols < 256)
{
gimp_rgb_get_uchar (color,
&gimage->cmap[ipal->image->num_cols * 3],
&gimage->cmap[ipal->image->num_cols * 3 + 1],
&gimage->cmap[ipal->image->num_cols * 3 + 2]);
gimage->num_cols++;
gimp_image_colormap_changed (gimage, -1);
}
}
static void
ipal_area_size_allocate (GtkWidget *widget,
GtkAllocation *alloc,
GimpColormapDialog *ipal)
{
if (ipal->image && (gimp_image_base_type (ipal->image) == GIMP_INDEXED))
ipal_draw (ipal);
else
ipal_clear (ipal, -1);
}
#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;
g_return_if_fail (ipal);
g_return_if_fail (ipal->image);
gimage = ipal->image;
palette = ipal->palette;
width = palette->allocation.width;
height = palette->allocation.height;
ncol = gimage->num_cols;
if (! ncol)
{
ipal_clear (ipal, -1);
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;
row = g_new (guchar, width * 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 < width; l++)
for (b = 0; b < 3; b++)
row[l * 3 + b] = (((((i * cellsize + k) & 0x4) ?
(l) :
(l + 0x4)) & 0x4) ?
render_blend_light_check[0] :
render_blend_dark_check[0]);
gtk_preview_draw_row (GTK_PREVIEW (ipal->palette), row, 0,
i * cellsize + k,
width);
}
}
ipal_clear (ipal, yn * cellsize);
ipal_draw_cell (ipal, ipal->col_index);
g_free (row);
gtk_widget_queue_draw (palette);
}
static void
ipal_draw_cell (GimpColormapDialog *ipal,
gint col)
{
guchar *row;
gint cellsize, x, y, k;
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 (GTK_PREVIEW (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 (GTK_PREVIEW (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 (GTK_PREVIEW (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 (GTK_PREVIEW (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 (GTK_PREVIEW (ipal->palette), row,
x, y+k, cellsize);
}
gtk_widget_queue_draw_area (ipal->palette,
x, y,
cellsize, cellsize);
}
static void
ipal_clear (GimpColormapDialog *ipal,
gint start_row)
{
gint i, j;
gint offset;
gint width, height;
guchar *row = NULL;
GtkWidget *palette;
g_return_if_fail (ipal);
palette = ipal->palette;
/* Watch out for negative values (at least on Win32) */
width = (int) (gint16) palette->allocation.width;
height = (int) (gint16) palette->allocation.height;
if (start_row < 0)
start_row = 0;
if (start_row >= height)
return;
if (width > 0)
row = g_new (guchar, width * 3);
if (start_row & 0x3)
{
offset = (start_row & 0x4) ? 0x4 : 0x0;
for (j = 0; j < width; j++)
{
row[j * 3 + 0] = row[j * 3 + 1] = row[j * 3 + 2] =
((j + offset) & 0x4) ?
render_blend_dark_check[0] : render_blend_light_check[0];
}
for (j = 0; j < (4 - (start_row & 0x3)) && start_row + j < height; j++)
gtk_preview_draw_row (GTK_PREVIEW (ipal->palette), row,
0, start_row + j, width);
start_row += (4 - (start_row & 0x3));
}
for (i = start_row; 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) ?
render_blend_dark_check[0] : render_blend_light_check[0];
}
for (j = 0; j < 4 && i + j < height; j++)
gtk_preview_draw_row (GTK_PREVIEW (ipal->palette), row,
0, i + j, width);
}
if (width > 0)
g_free (row);
gtk_widget_queue_draw (palette);
}
static void
ipal_update_entries (GimpColormapDialog *ipal)
{
if (! ipal->image || (gimp_image_base_type (ipal->image) != GIMP_INDEXED))
{
gtk_widget_set_sensitive (ipal->index_spinbutton, FALSE);
gtk_widget_set_sensitive (ipal->color_entry, FALSE);
gtk_adjustment_set_value (ipal->index_adjustment, 0);
gtk_entry_set_text (GTK_ENTRY (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 (GTK_ENTRY (ipal->color_entry), string);
g_free (string);
gtk_widget_set_sensitive (ipal->index_spinbutton, TRUE);
gtk_widget_set_sensitive (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)
{
const 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
image_mode_changed_cb (GimpImage *gimage,
GimpColormapDialog *ipal)
{
image_colormap_changed_cb (gimage, -1, ipal);
}
static void
image_colormap_changed_cb (GimpImage *gimage,
gint ncol,
GimpColormapDialog *ipal)
{
if (gimp_image_base_type (gimage) == GIMP_INDEXED)
{
if (ncol < 0)
{
ipal_draw (ipal);
}
else
{
ipal_draw_cell (ipal, ncol);
}
gtk_widget_set_sensitive (ipal->add_item, (gimage->num_cols < 256));
if ((ipal->index_adjustment->upper + 1) < gimage->num_cols)
{
ipal->index_adjustment->upper = gimage->num_cols - 1;
gtk_adjustment_changed (ipal->index_adjustment);
}
}
else
{
ipal_clear (ipal, -1);
}
if (ncol == ipal->col_index || ncol == -1)
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_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_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpColormapDialog *ipal)
{
GimpImage *gimage;
guchar r, g, b;
guint col;
gimage = ipal->image;
if (! (gimage && (gimp_image_base_type (gimage) == GIMP_INDEXED)))
return FALSE;
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;
}
return FALSE;
}
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