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gimp/app/gui/color-notebook.c
Michael Natterer fbd8ec67fb app/color_notebook.[ch] moved the "old" and "new" color areas from the 
2001-01-08  Michael Natterer  <mitch@gimp.org>

	* app/color_notebook.[ch]
	* app/color_select.c: moved the "old" and "new" color areas from the
	notebook to the action_area.

	* TODO.xml: updated.

	* app/color_area.c
	* app/color_panel.c
	* app/colormap_dialog.c
	* app/palette.c
	* libgimp/gimpcolorselector.h
	* modules/colorsel_gtk.c
	* modules/colorsel_triangle.c
	* modules/colorsel_water.c: removed the "set_current" parameter all
	over the place because it was always TRUE and not used in the modules
	at all.
2001-01-08 05:00:22 +00:00

802 lines
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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* color_notebook module (C) 1998 Austin Donnelly <austin@greenend.org.uk>
*
* 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.
*/
#define __COLOR_NOTEBOOK_C__ 1
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gmodule.h>
#include <gtk/gtk.h>
#include "apptypes.h"
#include "color_area.h"
#include "color_notebook.h"
#include "colormaps.h"
#include "gimpdnd.h"
#include "gimpui.h"
#include "libgimp/gimphelpui.h"
#include "libgimp/gimpcolorselector.h"
#include "libgimp/gimpintl.h"
#define COLOR_AREA_WIDTH 74
#define COLOR_AREA_HEIGHT 20
enum
{
RED,
GREEN,
BLUE,
ALPHA
};
typedef enum
{
UPDATE_NOTEBOOK = 1 << 0,
UPDATE_NEW_COLOR = 1 << 1,
UPDATE_ORIG_COLOR = 1 << 2,
UPDATE_CALLER = 1 << 3
} ColorNotebookUpdateType;
/* information we keep on each registered colour selector */
typedef struct _ColorSelectorInfo ColorSelectorInfo;
struct _ColorSelectorInfo
{
gchar *name; /* label used in notebook tab */
gchar *help_page;
GimpColorSelectorMethods methods;
gint refs; /* number of instances around */
gboolean active;
GimpColorSelectorFinishedCB death_callback;
gpointer death_data;
ColorSelectorInfo *next;
};
struct _ColorSelectorInstance
{
ColorNotebook *color_notebook;
ColorSelectorInfo *info;
GtkWidget *frame; /* main widget */
gpointer selector_data;
ColorSelectorInstance *next;
};
static void color_notebook_ok_callback (GtkWidget *widget,
gpointer data);
static void color_notebook_cancel_callback (GtkWidget *widget,
gpointer data);
static void color_notebook_update_callback (gpointer data,
gint red,
gint green,
gint blue,
gint alpha);
static void color_notebook_page_switch (GtkWidget *widget,
GtkNotebookPage *page,
guint page_num,
gpointer data);
static void color_notebook_help_func (const gchar *help_data);
static void color_notebook_selector_death (ColorSelectorInfo *info);
static void color_notebook_update (ColorNotebook *cnp,
ColorNotebookUpdateType update);
static void color_notebook_update_notebook (ColorNotebook *cnp);
static void color_notebook_update_caller (ColorNotebook *cnp);
static void color_notebook_update_colors (ColorNotebook *cnp,
ColorNotebookUpdateType which);
static gboolean color_notebook_color_events (GtkWidget *widget,
GdkEvent *event,
gpointer data);
static void color_notebook_drag_new_color (GtkWidget *widget,
guchar *r,
guchar *g,
guchar *b,
guchar *a,
gpointer data);
static void color_notebook_drop_new_color (GtkWidget *widget,
guchar r,
guchar g,
guchar b,
guchar a,
gpointer data);
static void color_notebook_drag_old_color (GtkWidget *widget,
guchar *r,
guchar *g,
guchar *b,
guchar *a,
gpointer data);
/* master list of all registered colour selectors */
static ColorSelectorInfo *selector_info = NULL;
/* dnd stuff */
static GtkTargetEntry color_notebook_target_table[] =
{
GIMP_TARGET_COLOR
};
static guint n_color_notebook_targets = (sizeof (color_notebook_target_table) /
sizeof (color_notebook_target_table[0]));
ColorNotebook *
color_notebook_new (gint red,
gint green,
gint blue,
gint alpha,
ColorNotebookCallback callback,
gpointer client_data,
gboolean wants_updates,
gboolean show_alpha)
{
ColorNotebook *cnp;
GtkWidget *main_hbox;
/*GtkWidget *right_vbox;*/
GtkWidget *colors_frame;
GtkWidget *colors_hbox;
GtkWidget *label;
ColorSelectorInfo *info;
ColorSelectorInstance *csel;
g_return_val_if_fail (selector_info != NULL, NULL);
cnp = g_new0 (ColorNotebook, 1);
cnp->gc = NULL;
cnp->callback = callback;
cnp->client_data = client_data;
cnp->wants_updates = wants_updates;
cnp->selectors = NULL;
cnp->cur_page = NULL;
cnp->values[RED] = cnp->orig_values[RED] = red & 0xff;
cnp->values[GREEN] = cnp->orig_values[GREEN] = green & 0xff;
cnp->values[BLUE] = cnp->orig_values[BLUE] = blue & 0xff;
cnp->values[ALPHA] = cnp->orig_values[ALPHA] = alpha & 0xff;
cnp->shell =
gimp_dialog_new (_("Color Selection"), "color_selection",
color_notebook_help_func, (const gchar *) cnp,
GTK_WIN_POS_NONE,
FALSE, FALSE, FALSE,
wants_updates ? _("Close") : _("OK"),
color_notebook_ok_callback,
cnp, NULL, NULL, TRUE, wants_updates,
wants_updates ? _("Revert to Old Color") : _("Cancel"),
color_notebook_cancel_callback,
cnp, NULL, NULL, FALSE, !wants_updates,
NULL);
main_hbox = gtk_hbox_new (FALSE, 6);
gtk_container_set_border_width (GTK_CONTAINER (main_hbox), 1);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (cnp->shell)->vbox), main_hbox);
gtk_widget_show (main_hbox);
/* do we actually need a notebook? */
if (selector_info->next)
{
cnp->notebook = gtk_notebook_new ();
gtk_box_pack_start (GTK_BOX (main_hbox), cnp->notebook,
FALSE, FALSE, 0);
gtk_widget_show (cnp->notebook);
}
else /* only one selector */
{
cnp->notebook = NULL;
}
/* create each registered color selector */
info = selector_info;
while (info)
{
if (info->active)
{
csel = g_new (ColorSelectorInstance, 1);
csel->color_notebook = cnp;
csel->info = info;
info->refs++;
csel->frame = info->methods.new (red, green, blue, alpha,
show_alpha,
color_notebook_update_callback, csel,
&csel->selector_data);
gtk_object_set_data (GTK_OBJECT (csel->frame), "gimp_color_notebook",
csel);
if (cnp->notebook)
{
label = gtk_label_new (info->name);
gtk_widget_show (label);
/* hide the frame, so it doesn't get selected by mistake */
gtk_widget_hide (csel->frame);
gtk_notebook_append_page (GTK_NOTEBOOK (cnp->notebook),
csel->frame,
label);
}
else
{
gtk_box_pack_start (GTK_BOX (main_hbox), csel->frame,
FALSE, FALSE, 0);
}
gtk_widget_show (csel->frame);
if (!cnp->cur_page)
cnp->cur_page = csel;
/* link into list of all selectors hanging off the new notebook */
csel->next = cnp->selectors;
cnp->selectors = csel;
}
info = info->next;
}
/* The right vertical box with old/new color area and color space sliders */
/*
right_vbox = gtk_vbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (main_hbox), right_vbox, TRUE, TRUE, 0);
gtk_widget_show (right_vbox);
*/
/* The old/new color area frame and hbox */
colors_frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (colors_frame), GTK_SHADOW_IN);
/* gtk_box_pack_start (GTK_BOX (right_vbox), colors_frame, FALSE, FALSE, 0); */
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (cnp->shell)->action_area),
colors_frame,
FALSE, FALSE, 0);
gtk_widget_show (colors_frame);
colors_hbox = gtk_hbox_new (TRUE, 2);
gtk_container_add (GTK_CONTAINER (colors_frame), colors_hbox);
gtk_widget_show (colors_hbox);
/* The new color area */
cnp->new_color = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (cnp->new_color),
COLOR_AREA_WIDTH, COLOR_AREA_HEIGHT);
gtk_widget_set_events (cnp->new_color, GDK_EXPOSURE_MASK);
gtk_signal_connect (GTK_OBJECT (cnp->new_color), "event",
GTK_SIGNAL_FUNC (color_notebook_color_events),
cnp);
gtk_object_set_user_data (GTK_OBJECT (cnp->new_color), cnp);
gtk_box_pack_start (GTK_BOX (colors_hbox), cnp->new_color, TRUE, TRUE, 0);
gtk_widget_show (cnp->new_color);
/* dnd stuff */
gtk_drag_source_set (cnp->new_color,
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
color_notebook_target_table, n_color_notebook_targets,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
gimp_dnd_color_source_set (cnp->new_color, color_notebook_drag_new_color, cnp);
gtk_drag_dest_set (cnp->new_color,
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
color_notebook_target_table, n_color_notebook_targets,
GDK_ACTION_COPY);
gimp_dnd_color_dest_set (cnp->new_color, color_notebook_drop_new_color, cnp);
/* The old color area */
cnp->orig_color = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (cnp->orig_color),
COLOR_AREA_WIDTH, COLOR_AREA_HEIGHT);
gtk_widget_set_events (cnp->orig_color, GDK_EXPOSURE_MASK);
gtk_signal_connect (GTK_OBJECT (cnp->orig_color), "event",
GTK_SIGNAL_FUNC (color_notebook_color_events),
cnp);
gtk_object_set_user_data (GTK_OBJECT (cnp->orig_color), cnp);
gtk_box_pack_start (GTK_BOX (colors_hbox), cnp->orig_color, TRUE, TRUE, 0);
gtk_widget_show (cnp->orig_color);
/* dnd stuff */
gtk_drag_source_set (cnp->orig_color,
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
color_notebook_target_table, n_color_notebook_targets,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
gimp_dnd_color_source_set (cnp->orig_color, color_notebook_drag_old_color,
cnp);
gtk_widget_show (cnp->shell);
/* this must come after showing the widget, otherwise we get a
* switch_page signal for a non-visible color selector, which is bad
* news.
*/
if (cnp->notebook)
{
gtk_signal_connect (GTK_OBJECT (cnp->notebook), "switch_page",
GTK_SIGNAL_FUNC (color_notebook_page_switch),
cnp);
}
return cnp;
}
void
color_notebook_show (ColorNotebook *cnp)
{
g_return_if_fail (cnp != NULL);
gtk_widget_show (cnp->shell);
}
void
color_notebook_hide (ColorNotebook *cnp)
{
g_return_if_fail (cnp != NULL);
gtk_widget_hide (cnp->shell);
}
void
color_notebook_free (ColorNotebook *cnp)
{
ColorSelectorInstance *csel, *next;
g_return_if_fail (cnp != NULL);
gtk_widget_destroy (cnp->shell);
/* call the free functions for all the color selectors */
csel = cnp->selectors;
while (csel)
{
next = csel->next;
csel->info->methods.free (csel->selector_data);
csel->info->refs--;
if (csel->info->refs == 0 && !csel->info->active)
color_notebook_selector_death (csel->info);
g_free (csel);
csel = next;
}
g_free (cnp);
}
void
color_notebook_set_color (ColorNotebook *cnp,
gint red,
gint green,
gint blue,
gint alpha)
{
g_return_if_fail (cnp != NULL);
cnp->orig_values[RED] = red;
cnp->orig_values[GREEN] = green;
cnp->orig_values[BLUE] = blue;
cnp->orig_values[ALPHA] = alpha;
cnp->values[RED] = red;
cnp->values[GREEN] = green;
cnp->values[BLUE] = blue;
cnp->values[ALPHA] = alpha;
color_notebook_update (cnp,
UPDATE_NOTEBOOK |
UPDATE_ORIG_COLOR |
UPDATE_NEW_COLOR);
}
/*
* Called by a color selector on user selection of a color
*/
static void
color_notebook_update_callback (gpointer data,
gint red,
gint green,
gint blue,
gint alpha)
{
ColorSelectorInstance *csel;
ColorNotebook *cnp;
g_return_if_fail (data != NULL);
csel = (ColorSelectorInstance *) data;
cnp = csel->color_notebook;
cnp->values[RED] = red;
cnp->values[GREEN] = green;
cnp->values[BLUE] = blue;
cnp->values[ALPHA] = alpha;
color_notebook_update (cnp, UPDATE_NEW_COLOR | UPDATE_CALLER);
}
static void
color_notebook_ok_callback (GtkWidget *widget,
gpointer data)
{
ColorNotebook *cnp;
cnp = (ColorNotebook *) data;
if (cnp->callback)
{
(* cnp->callback) (cnp->values[RED],
cnp->values[GREEN],
cnp->values[BLUE],
cnp->values[ALPHA],
COLOR_NOTEBOOK_OK,
cnp->client_data);
}
}
static void
color_notebook_cancel_callback (GtkWidget *widget,
gpointer data)
{
ColorNotebook *cnp;
cnp = (ColorNotebook *) data;
if (cnp->callback)
{
(* cnp->callback) (cnp->orig_values[RED],
cnp->orig_values[GREEN],
cnp->orig_values[BLUE],
cnp->orig_values[ALPHA],
COLOR_NOTEBOOK_CANCEL,
cnp->client_data);
}
}
static void
color_notebook_page_switch (GtkWidget *widget,
GtkNotebookPage *page,
guint page_num,
gpointer data)
{
ColorNotebook *cnp;
ColorSelectorInstance *csel;
cnp = (ColorNotebook *) data;
csel = gtk_object_get_data (GTK_OBJECT (page->child), "gimp_color_notebook");
g_return_if_fail (cnp != NULL && csel != NULL);
cnp->cur_page = csel;
color_notebook_update (cnp, UPDATE_NOTEBOOK);
}
static void
color_notebook_help_func (const gchar *data)
{
ColorNotebook *cnp;
gchar *help_path;
cnp = (ColorNotebook *) data;
help_path = g_strconcat ("dialogs/color_selectors/",
cnp->cur_page->info->help_page,
NULL);
gimp_standard_help_func (help_path);
g_free (help_path);
}
/**************************/
/* Registration functions */
G_MODULE_EXPORT
GimpColorSelectorID
gimp_color_selector_register (const gchar *name,
const gchar *help_page,
GimpColorSelectorMethods *methods)
{
ColorSelectorInfo *info;
/* check the name is unique */
info = selector_info;
while (info)
{
if (!strcmp (info->name, name))
return NULL;
info = info->next;
}
info = g_new (ColorSelectorInfo, 1);
info->name = g_strdup (name);
info->help_page = g_strdup (help_page);
info->methods = *methods;
info->refs = 0;
info->active = TRUE;
info->next = selector_info;
selector_info = info;
return info;
}
G_MODULE_EXPORT
gboolean
gimp_color_selector_unregister (GimpColorSelectorID id,
GimpColorSelectorFinishedCB callback,
gpointer data)
{
ColorSelectorInfo *info;
info = selector_info;
while (info)
{
if (info == id)
{
info->active = FALSE;
info->death_callback = callback;
info->death_data = data;
if (info->refs == 0)
color_notebook_selector_death (info);
return TRUE;
}
info = info->next;
}
g_warning ("unknown color selector id %p", id);
return FALSE;
}
static void
color_notebook_selector_death (ColorSelectorInfo *info)
{
ColorSelectorInfo *here, *prev;
here = selector_info;
prev = NULL;
while (here)
{
if (here == info)
{
if (prev)
prev->next = info->next;
else
selector_info = info->next;
if (info->death_callback)
(*info->death_callback) (info->death_data);
g_free (info->name);
g_free (info);
return;
}
prev = here;
here = here->next;
}
g_warning ("color selector %p not found, can't happen!", info);
}
static void
color_notebook_update (ColorNotebook *cnp,
ColorNotebookUpdateType update)
{
if (!cnp)
return;
if (update & UPDATE_NOTEBOOK)
color_notebook_update_notebook (cnp);
if (update & UPDATE_NEW_COLOR)
color_notebook_update_colors (cnp, UPDATE_NEW_COLOR);
if (update & UPDATE_ORIG_COLOR)
color_notebook_update_colors (cnp, UPDATE_ORIG_COLOR);
if (update & UPDATE_CALLER && cnp->wants_updates)
color_notebook_update_caller (cnp);
}
static void
color_notebook_update_notebook (ColorNotebook *cnp)
{
ColorSelectorInstance *csel;
g_return_if_fail (cnp != NULL);
csel = cnp->cur_page;
csel->info->methods.setcolor (csel->selector_data,
cnp->values[RED],
cnp->values[GREEN],
cnp->values[BLUE],
cnp->values[ALPHA]);
}
static void
color_notebook_update_caller (ColorNotebook *cnp)
{
if (cnp && cnp->callback)
{
(* cnp->callback) (cnp->values[RED],
cnp->values[GREEN],
cnp->values[BLUE],
cnp->values[ALPHA],
COLOR_NOTEBOOK_UPDATE,
cnp->client_data);
}
}
static void
color_notebook_update_colors (ColorNotebook *cnp,
ColorNotebookUpdateType which)
{
GdkWindow *window;
GdkColor color;
gint red, green, blue;
gint width, height;
if (!cnp)
return;
if (which == UPDATE_ORIG_COLOR)
{
window = cnp->orig_color->window;
red = cnp->orig_values[0];
green = cnp->orig_values[1];
blue = cnp->orig_values[2];
}
else if (which == UPDATE_NEW_COLOR)
{
window = cnp->new_color->window;
red = cnp->values[RED];
green = cnp->values[GREEN];
blue = cnp->values[BLUE];
}
else
{
return;
}
/* if we haven't yet been realized, there's no need to redraw
* anything.
*/
if (!window)
return;
color.pixel = get_color (red, green, blue);
gdk_window_get_size (window, &width, &height);
if (cnp->gc)
{
color_area_draw_rect (window, cnp->gc,
0, 0, width, height,
red, green, blue);
}
}
static gboolean
color_notebook_color_events (GtkWidget *widget,
GdkEvent *event,
gpointer data)
{
ColorNotebook *cnp;
cnp = (ColorNotebook *) data;
if (!cnp)
return FALSE;
switch (event->type)
{
case GDK_EXPOSE:
if (!cnp->gc)
cnp->gc = gdk_gc_new (widget->window);
if (widget == cnp->new_color)
color_notebook_update (cnp, UPDATE_NEW_COLOR);
else if (widget == cnp->orig_color)
color_notebook_update (cnp, UPDATE_ORIG_COLOR);
break;
default:
break;
}
return FALSE;
}
static void
color_notebook_drag_new_color (GtkWidget *widget,
guchar *r,
guchar *g,
guchar *b,
guchar *a,
gpointer data)
{
ColorNotebook *cnp;
cnp = (ColorNotebook *) data;
*r = (guchar) cnp->values[RED];
*g = (guchar) cnp->values[GREEN];
*b = (guchar) cnp->values[BLUE];
*a = (guchar) cnp->values[ALPHA];
}
static void
color_notebook_drop_new_color (GtkWidget *widget,
guchar r,
guchar g,
guchar b,
guchar a,
gpointer data)
{
ColorNotebook *cnp;
cnp = (ColorNotebook *) data;
cnp->values[RED] = (gint) r;
cnp->values[GREEN] = (gint) g;
cnp->values[BLUE] = (gint) b;
cnp->values[ALPHA] = (gint) a;
color_notebook_update (cnp,
UPDATE_NOTEBOOK |
UPDATE_NEW_COLOR |
UPDATE_CALLER);
}
static void
color_notebook_drag_old_color (GtkWidget *widget,
guchar *r,
guchar *g,
guchar *b,
guchar *a,
gpointer data)
{
ColorNotebook *cnp;
cnp = (ColorNotebook *) data;
*r = (guchar) cnp->orig_values[0];
*g = (guchar) cnp->orig_values[1];
*b = (guchar) cnp->orig_values[2];
*a = (guchar) cnp->orig_values[3];
}
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