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gimp/libgimpwidgets/gimpwidgets.c
Michael Natterer 61ac7167d6 Reworked random seed handling once more: 
2004-02-01  Michael Natterer  <mitch@gimp.org>

	Reworked random seed handling once more:

	* libgimpwidgets/gimpwidgets.c (gimp_random_seed_new): make sure
	the displayed random seed value is always the one which will be
	used, whether "Randomize" is checked or not.

	* plug-ins/common/blur.c
	* plug-ins/common/plasma.c
	* plug-ins/common/randomize.c
	* plug-ins/common/sinus.c
	* plug-ins/common/snoise.c
	* plug-ins/maze/algorithms.c
	* plug-ins/maze/maze.c: if running interactively, always take
	the seed value produced by the gimp_random_seed widget and don't
	touch it because the widgets honors the "randomize" toggle
	correctly now.

	For noninteractive and last_vals runs, look at the "randomize"
	boolean and generate a seed if it is TRUE.

	Initialize the random number generators from the seed determined
	by either of the above ways and don't fiddle with it in the inner
	algorithms itself.

	* plug-ins/gflare/gflare.c (plugin_run): initialize the GRand
	from the seed unconditionally.

	(ed_make_page_sflare): no need to get the entry from the random
	seed widget to get its adjustment. Instead get the adjustment
	directly.

	(The random handling code of gflare looks somewhat broken, but
	that applies to the whole plug-in).
2004-02-01 13:22:09 +00:00

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpwidgets.c
* Copyright (C) 2000 Michael Natterer <mitch@gimp.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpbase/gimpbase.h"
#include "gimpwidgetstypes.h"
#include "gimpchainbutton.h"
#include "gimppixmap.h"
#include "gimpsizeentry.h"
#include "gimpunitmenu.h"
#include "gimpwidgets.h"
#include "libgimp/libgimp-intl.h"
/*
* Widget Constructors
*/
/**
* gimp_option_menu_new:
* @menu_only: %TRUE if the function should return a #GtkMenu only.
* @...: A %NULL-terminated @va_list describing the menu items.
*
* Convenience function to create a #GtkOptionMenu or a #GtkMenu.
*
* Returns: A #GtkOptionMenu or a #GtkMenu (depending on @menu_only).
**/
GtkWidget *
gimp_option_menu_new (gboolean menu_only,
/* specify menu items as va_list:
* const gchar *label,
* GCallback callback,
* gpointer callback_data,
* gpointer item_data,
* GtkWidget **widget_ptr,
* gboolean active
*/
...)
{
GtkWidget *menu;
GtkWidget *menuitem;
/* menu item variables */
const gchar *label;
GCallback callback;
gpointer callback_data;
gpointer item_data;
GtkWidget **widget_ptr;
gboolean active;
va_list args;
gint i;
gint initial_index;
menu = gtk_menu_new ();
/* create the menu items */
initial_index = 0;
va_start (args, menu_only);
label = va_arg (args, const gchar *);
for (i = 0; label; i++)
{
callback = va_arg (args, GCallback);
callback_data = va_arg (args, gpointer);
item_data = va_arg (args, gpointer);
widget_ptr = va_arg (args, GtkWidget **);
active = va_arg (args, gboolean);
if (strcmp (label, "---"))
{
menuitem = gtk_menu_item_new_with_label (label);
g_signal_connect (menuitem, "activate",
callback,
callback_data);
if (item_data)
{
g_object_set_data (G_OBJECT (menuitem), "gimp-item-data",
item_data);
/* backward compat */
g_object_set_data (G_OBJECT (menuitem), "user_data", item_data);
}
}
else
{
menuitem = gtk_menu_item_new ();
gtk_widget_set_sensitive (menuitem, FALSE);
}
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
if (widget_ptr)
*widget_ptr = menuitem;
gtk_widget_show (menuitem);
/* remember the initial menu item */
if (active)
initial_index = i;
label = va_arg (args, const gchar *);
}
va_end (args);
if (! menu_only)
{
GtkWidget *optionmenu;
optionmenu = gtk_option_menu_new ();
gtk_option_menu_set_menu (GTK_OPTION_MENU (optionmenu), menu);
/* select the initial menu item */
gtk_option_menu_set_history (GTK_OPTION_MENU (optionmenu), initial_index);
return optionmenu;
}
return menu;
}
/**
* gimp_option_menu_new2:
* @menu_only: %TRUE if the function should return a #GtkMenu only.
* @menu_item_callback: The callback each menu item's "activate" signal will
* be connected with.
* @menu_item_callback_data:
* The data which will be passed to g_signal_connect().
* @initial: The @item_data of the initially selected menu item.
* @...: A %NULL-terminated @va_list describing the menu items.
*
* Convenience function to create a #GtkOptionMenu or a #GtkMenu.
*
* Returns: A #GtkOptionMenu or a #GtkMenu (depending on @menu_only).
**/
GtkWidget *
gimp_option_menu_new2 (gboolean menu_only,
GCallback menu_item_callback,
gpointer callback_data,
gpointer initial, /* item_data */
/* specify menu items as va_list:
* const gchar *label,
* gpointer item_data,
* GtkWidget **widget_ptr,
*/
...)
{
GtkWidget *menu;
GtkWidget *menuitem;
/* menu item variables */
const gchar *label;
gpointer item_data;
GtkWidget **widget_ptr;
va_list args;
gint i;
gint initial_index;
menu = gtk_menu_new ();
/* create the menu items */
initial_index = 0;
va_start (args, initial);
label = va_arg (args, const gchar *);
for (i = 0; label; i++)
{
item_data = va_arg (args, gpointer);
widget_ptr = va_arg (args, GtkWidget **);
if (strcmp (label, "---"))
{
menuitem = gtk_menu_item_new_with_label (label);
g_signal_connect (menuitem, "activate",
menu_item_callback,
callback_data);
if (item_data)
{
g_object_set_data (G_OBJECT (menuitem), "gimp-item-data",
item_data);
/* backward compat */
g_object_set_data (G_OBJECT (menuitem), "user_data", item_data);
}
}
else
{
menuitem = gtk_menu_item_new ();
gtk_widget_set_sensitive (menuitem, FALSE);
}
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
if (widget_ptr)
*widget_ptr = menuitem;
gtk_widget_show (menuitem);
/* remember the initial menu item */
if (item_data == initial)
initial_index = i;
label = va_arg (args, const gchar *);
}
va_end (args);
if (! menu_only)
{
GtkWidget *optionmenu;
optionmenu = gtk_option_menu_new ();
gtk_option_menu_set_menu (GTK_OPTION_MENU (optionmenu), menu);
/* select the initial menu item */
gtk_option_menu_set_history (GTK_OPTION_MENU (optionmenu), initial_index);
return optionmenu;
}
return menu;
}
/**
* gimp_int_option_menu_new:
* @menu_only: %TRUE if the function should return a #GtkMenu only.
* @menu_item_callback: The callback each menu item's "activate" signal will
* be connected with.
* @menu_item_callback_data:
* The data which will be passed to g_signal_connect().
* @initial: The @item_data of the initially selected menu item.
* @...: A %NULL-terminated @va_list describing the menu items.
*
* Convenience function to create a #GtkOptionMenu or a #GtkMenu. This
* function does the same thing as the deprecated function
* gimp_option_menu_new2(), but it takes integers as @item_data
* instead of pointers, since that is a very common case (mapping an
* enum to a menu).
*
* Returns: A #GtkOptionMenu or a #GtkMenu (depending on @menu_only).
**/
GtkWidget *
gimp_int_option_menu_new (gboolean menu_only,
GCallback menu_item_callback,
gpointer callback_data,
gint initial, /* item_data */
/* specify menu items as va_list:
* const gchar *label,
* gint item_data,
* GtkWidget **widget_ptr,
*/
...)
{
GtkWidget *menu;
GtkWidget *menuitem;
/* menu item variables */
const gchar *label;
gint item_data;
gpointer item_ptr;
GtkWidget **widget_ptr;
va_list args;
gint i;
gint initial_index;
menu = gtk_menu_new ();
/* create the menu items */
initial_index = 0;
va_start (args, initial);
label = va_arg (args, const gchar *);
for (i = 0; label; i++)
{
item_data = va_arg (args, gint);
widget_ptr = va_arg (args, GtkWidget **);
item_ptr = GINT_TO_POINTER (item_data);
if (strcmp (label, "---"))
{
menuitem = gtk_menu_item_new_with_label (label);
g_signal_connect (menuitem, "activate",
menu_item_callback,
callback_data);
if (item_data)
{
g_object_set_data (G_OBJECT (menuitem), "gimp-item-data",
item_ptr);
/* backward compat */
g_object_set_data (G_OBJECT (menuitem), "user_data", item_ptr);
}
}
else
{
menuitem = gtk_menu_item_new ();
gtk_widget_set_sensitive (menuitem, FALSE);
}
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
if (widget_ptr)
*widget_ptr = menuitem;
gtk_widget_show (menuitem);
/* remember the initial menu item */
if (item_data == initial)
initial_index = i;
label = va_arg (args, const gchar *);
}
va_end (args);
if (! menu_only)
{
GtkWidget *optionmenu;
optionmenu = gtk_option_menu_new ();
gtk_option_menu_set_menu (GTK_OPTION_MENU (optionmenu), menu);
/* select the initial menu item */
gtk_option_menu_set_history (GTK_OPTION_MENU (optionmenu), initial_index);
return optionmenu;
}
return menu;
}
/**
* gimp_option_menu_set_history:
* @option_menu: A #GtkOptionMenu as returned by gimp_option_menu_new() or
* gimp_option_menu_new2().
* @item_data: The @item_data of the menu item you want to select.
*
* Iterates over all entries in a #GtkOptionMenu and selects the one
* with the matching @item_data. Probably only makes sense to use with
* a #GtkOptionMenu that was created using gimp_option_menu_new() or
* gimp_option_menu_new2().
**/
void
gimp_option_menu_set_history (GtkOptionMenu *option_menu,
gpointer item_data)
{
GtkWidget *menu_item;
GList *list;
gint history = 0;
g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
for (list = GTK_MENU_SHELL (option_menu->menu)->children;
list;
list = g_list_next (list))
{
menu_item = GTK_WIDGET (list->data);
if (GTK_IS_LABEL (GTK_BIN (menu_item)->child) &&
g_object_get_data (G_OBJECT (menu_item),
"gimp-item-data") == item_data)
{
break;
}
history++;
}
if (list)
gtk_option_menu_set_history (option_menu, history);
}
/**
* gimp_int_option_menu_set_history:
* @option_menu: A #GtkOptionMenu as returned by gimp_int_option_menu_new().
* @item_data: The @item_data of the menu item you want to select.
*
* Iterates over all entries in a #GtkOptionMenu and selects the one with the
* matching @item_data. Probably only makes sense to use with a #GtkOptionMenu
* that was created using gimp_int_option_menu_new(). This function does the
* same thing as gimp_option_menu_set_history(), but takes integers as
* @item_data instead of pointers.
**/
void
gimp_int_option_menu_set_history (GtkOptionMenu *option_menu,
gint item_data)
{
g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
gimp_option_menu_set_history (option_menu, GINT_TO_POINTER (item_data));
}
/**
* gimp_option_menu_set_sensitive:
* @option_menu: a #GtkOptionMenu as returned by gimp_option_menu_new() or
* gimp_option_menu_new2().
* @callback: a function called for each item in the menu to determine the
* the sensitivity state.
* @callback_data: data to pass to the @callback function.
*
* Calls the given @callback for each item in the menu and passes it the
* item_data and the @callback_data. The menu item's sensitivity is set
* according to the return value of this function.
**/
void
gimp_option_menu_set_sensitive (GtkOptionMenu *option_menu,
GimpOptionMenuSensitivityCallback callback,
gpointer callback_data)
{
GtkWidget *menu_item;
GList *list;
gpointer item_data;
gboolean sensitive;
g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
g_return_if_fail (callback != NULL);
for (list = GTK_MENU_SHELL (option_menu->menu)->children;
list;
list = g_list_next (list))
{
menu_item = GTK_WIDGET (list->data);
if (GTK_IS_LABEL (GTK_BIN (menu_item)->child))
{
item_data = g_object_get_data (G_OBJECT (menu_item),
"gimp-item-data");
sensitive = callback (item_data, callback_data);
gtk_widget_set_sensitive (menu_item, sensitive);
}
}
}
/**
* gimp_int_option_menu_set_sensitive:
* @option_menu: a #GtkOptionMenu as returned by gimp_option_menu_new() or
* gimp_option_menu_new2().
* @callback: a function called for each item in the menu to determine the
* the sensitivity state.
* @callback_data: data to pass to the @callback function.
*
* Calls the given @callback for each item in the menu and passes it the
* item_data and the @callback_data. The menu item's sensitivity is set
* according to the return value of this function. This function does the
* same thing as gimp_option_menu_set_sensitive(), but takes integers as
* @item_data instead of pointers.
**/
void
gimp_int_option_menu_set_sensitive (GtkOptionMenu *option_menu,
GimpIntOptionMenuSensitivityCallback callback,
gpointer callback_data)
{
GtkWidget *menu_item;
GList *list;
gint item_data;
gboolean sensitive;
g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
g_return_if_fail (callback != NULL);
for (list = GTK_MENU_SHELL (option_menu->menu)->children;
list;
list = g_list_next (list))
{
menu_item = GTK_WIDGET (list->data);
if (GTK_IS_LABEL (GTK_BIN (menu_item)->child))
{
item_data = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (menu_item),
"gimp-item-data"));
sensitive = callback (item_data, callback_data);
gtk_widget_set_sensitive (menu_item, sensitive);
}
}
}
/**
* gimp_radio_group_new:
* @in_frame: %TRUE if you want a #GtkFrame around the radio button group.
* @frame_title: The title of the Frame or %NULL if you don't want a title.
* @...: A %NULL-terminated @va_list describing the radio buttons.
*
* Convenience function to create a group of radio buttons embedded into
* a #GtkFrame or #GtkVbox.
*
* Returns: A #GtkFrame or #GtkVbox (depending on @in_frame).
**/
GtkWidget *
gimp_radio_group_new (gboolean in_frame,
const gchar *frame_title,
/* specify radio buttons as va_list:
* const gchar *label,
* GCallback callback,
* gpointer callback_data,
* gpointer item_data,
* GtkWidget **widget_ptr,
* gboolean active,
*/
...)
{
GtkWidget *vbox;
GtkWidget *button;
GSList *group;
/* radio button variables */
const gchar *label;
GCallback callback;
gpointer callback_data;
gpointer item_data;
GtkWidget **widget_ptr;
gboolean active;
va_list args;
vbox = gtk_vbox_new (FALSE, 1);
group = NULL;
/* create the radio buttons */
va_start (args, frame_title);
label = va_arg (args, const gchar *);
while (label)
{
callback = va_arg (args, GCallback);
callback_data = va_arg (args, gpointer);
item_data = va_arg (args, gpointer);
widget_ptr = va_arg (args, GtkWidget **);
active = va_arg (args, gboolean);
if (label != (gpointer) 1)
button = gtk_radio_button_new_with_label (group, label);
else
button = gtk_radio_button_new (group);
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
if (item_data)
{
g_object_set_data (G_OBJECT (button), "gimp-item-data", item_data);
/* backward compatibility */
g_object_set_data (G_OBJECT (button), "user_data", item_data);
}
if (widget_ptr)
*widget_ptr = button;
if (active)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
g_signal_connect (button, "toggled",
callback,
callback_data);
gtk_widget_show (button);
label = va_arg (args, const gchar *);
}
va_end (args);
if (in_frame)
{
GtkWidget *frame;
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
frame = gtk_frame_new (frame_title);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
return frame;
}
return vbox;
}
/**
* gimp_radio_group_new2:
* @in_frame: %TRUE if you want a #GtkFrame around the
* radio button group.
* @frame_title: The title of the Frame or %NULL if you don't want
* a title.
* @radio_button_callback: The callback each button's "toggled" signal will
* be connected with.
* @radio_button_callback_data:
* The data which will be passed to g_signal_connect().
* @initial: The @item_data of the initially pressed radio button.
* @...: A %NULL-terminated @va_list describing
* the radio buttons.
*
* Convenience function to create a group of radio buttons embedded into
* a #GtkFrame or #GtkVbox.
*
* Returns: A #GtkFrame or #GtkVbox (depending on @in_frame).
**/
GtkWidget *
gimp_radio_group_new2 (gboolean in_frame,
const gchar *frame_title,
GCallback radio_button_callback,
gpointer callback_data,
gpointer initial, /* item_data */
/* specify radio buttons as va_list:
* const gchar *label,
* gpointer item_data,
* GtkWidget **widget_ptr,
*/
...)
{
GtkWidget *vbox;
GtkWidget *button;
GSList *group;
/* radio button variables */
const gchar *label;
gpointer item_data;
GtkWidget **widget_ptr;
va_list args;
vbox = gtk_vbox_new (FALSE, 1);
group = NULL;
/* create the radio buttons */
va_start (args, initial);
label = va_arg (args, const gchar *);
while (label)
{
item_data = va_arg (args, gpointer);
widget_ptr = va_arg (args, GtkWidget **);
if (label != (gpointer) 1)
button = gtk_radio_button_new_with_mnemonic (group, label);
else
button = gtk_radio_button_new (group);
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
if (item_data)
{
g_object_set_data (G_OBJECT (button), "gimp-item-data", item_data);
/* backward compatibility */
g_object_set_data (G_OBJECT (button), "user_data", item_data);
}
if (widget_ptr)
*widget_ptr = button;
if (initial == item_data)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
g_signal_connect (button, "toggled",
radio_button_callback,
callback_data);
gtk_widget_show (button);
label = va_arg (args, const gchar *);
}
va_end (args);
if (in_frame)
{
GtkWidget *frame;
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
frame = gtk_frame_new (frame_title);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
return frame;
}
return vbox;
}
/**
* gimp_int_radio_group_new:
* @in_frame: %TRUE if you want a #GtkFrame around the
* radio button group.
* @frame_title: The title of the Frame or %NULL if you don't want
* a title.
* @radio_button_callback: The callback each button's "toggled" signal will
* be connected with.
* @radio_button_callback_data:
* The data which will be passed to g_signal_connect().
* @initial: The @item_data of the initially pressed radio button.
* @...: A %NULL-terminated @va_list describing
* the radio buttons.
*
* Convenience function to create a group of radio buttons embedded into
* a #GtkFrame or #GtkVbox. This function does the same thing as
* gimp_radio_group_new2(), but it takes integers as @item_data instead of
* pointers, since that is a very common case (mapping an enum to a radio
* group).
*
* Returns: A #GtkFrame or #GtkVbox (depending on @in_frame).
**/
GtkWidget *
gimp_int_radio_group_new (gboolean in_frame,
const gchar *frame_title,
GCallback radio_button_callback,
gpointer callback_data,
gint initial, /* item_data */
/* specify radio buttons as va_list:
* const gchar *label,
* gint item_data,
* GtkWidget **widget_ptr,
*/
...)
{
GtkWidget *vbox;
GtkWidget *button;
GSList *group;
/* radio button variables */
const gchar *label;
gint item_data;
gpointer item_ptr;
GtkWidget **widget_ptr;
va_list args;
vbox = gtk_vbox_new (FALSE, 1);
group = NULL;
/* create the radio buttons */
va_start (args, initial);
label = va_arg (args, const gchar *);
while (label)
{
item_data = va_arg (args, gint);
widget_ptr = va_arg (args, GtkWidget **);
item_ptr = GINT_TO_POINTER (item_data);
if (label != GINT_TO_POINTER (1))
button = gtk_radio_button_new_with_mnemonic (group, label);
else
button = gtk_radio_button_new (group);
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
if (item_data)
{
g_object_set_data (G_OBJECT (button), "gimp-item-data", item_ptr);
/* backward compatibility */
g_object_set_data (G_OBJECT (button), "user_data", item_ptr);
}
if (widget_ptr)
*widget_ptr = button;
if (initial == item_data)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
g_signal_connect (button, "toggled",
radio_button_callback,
callback_data);
gtk_widget_show (button);
label = va_arg (args, const gchar *);
}
va_end (args);
if (in_frame)
{
GtkWidget *frame;
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
frame = gtk_frame_new (frame_title);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
return frame;
}
return vbox;
}
/**
* gimp_radio_group_set_active:
* @radio_button: Pointer to a #GtkRadioButton.
* @item_data: The @item_data of the radio button you want to select.
*
* Calls gtk_toggle_button_set_active() with the radio button that was
* created with a matching @item_data.
**/
void
gimp_radio_group_set_active (GtkRadioButton *radio_button,
gpointer item_data)
{
GtkWidget *button;
GSList *group;
g_return_if_fail (GTK_IS_RADIO_BUTTON (radio_button));
for (group = gtk_radio_button_get_group (radio_button);
group;
group = g_slist_next (group))
{
button = GTK_WIDGET (group->data);
if (g_object_get_data (G_OBJECT (button), "gimp-item-data") == item_data)
{
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
return;
}
}
}
/**
* gimp_int_radio_group_set_active:
* @radio_button: Pointer to a #GtkRadioButton.
* @item_data: The @item_data of the radio button you want to select.
*
* Calls gtk_toggle_button_set_active() with the radio button that was created
* with a matching @item_data. This function does the same thing as
* gimp_radio_group_set_active(), but takes integers as @item_data instead
* of pointers.
**/
void
gimp_int_radio_group_set_active (GtkRadioButton *radio_button,
gint item_data)
{
g_return_if_fail (GTK_IS_RADIO_BUTTON (radio_button));
gimp_radio_group_set_active (radio_button, GINT_TO_POINTER (item_data));
}
/**
* gimp_spin_button_new:
* @adjustment: Returns the spinbutton's #GtkAdjustment.
* @value: The initial value of the spinbutton.
* @lower: The lower boundary.
* @upper: The uppper boundary.
* @step_increment: The spinbutton's step increment.
* @page_increment: The spinbutton's page increment (mouse button 2).
* @page_size: The spinbutton's page size.
* @climb_rate: The spinbutton's climb rate.
* @digits: The spinbutton's number of decimal digits.
*
* This function is a shortcut for gtk_adjustment_new() and a subsequent
* gtk_spin_button_new() and does some more initialisation stuff like
* setting a standard minimum horizontal size.
*
* Returns: A #GtkSpinbutton and it's #GtkAdjustment.
**/
GtkWidget *
gimp_spin_button_new (GtkObject **adjustment, /* return value */
gdouble value,
gdouble lower,
gdouble upper,
gdouble step_increment,
gdouble page_increment,
gdouble page_size,
gdouble climb_rate,
guint digits)
{
GtkWidget *spinbutton;
*adjustment = gtk_adjustment_new (value, lower, upper,
step_increment, page_increment, page_size);
spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (*adjustment),
climb_rate, digits);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
return spinbutton;
}
static void
gimp_scale_entry_unconstrained_adjustment_callback (GtkAdjustment *adjustment,
GtkAdjustment *other_adj)
{
g_signal_handlers_block_by_func (other_adj,
gimp_scale_entry_unconstrained_adjustment_callback,
adjustment);
gtk_adjustment_set_value (other_adj, adjustment->value);
g_signal_handlers_unblock_by_func (other_adj,
gimp_scale_entry_unconstrained_adjustment_callback,
adjustment);
}
static GtkObject *
gimp_scale_entry_new_internal (gboolean color_scale,
GtkTable *table,
gint column,
gint row,
const gchar *text,
gint scale_width,
gint spinbutton_width,
gdouble value,
gdouble lower,
gdouble upper,
gdouble step_increment,
gdouble page_increment,
guint digits,
gboolean constrain,
gdouble unconstrained_lower,
gdouble unconstrained_upper,
const gchar *tooltip,
const gchar *help_id)
{
GtkWidget *label;
GtkWidget *scale;
GtkWidget *spinbutton;
GtkObject *adjustment;
GtkObject *return_adj;
label = gtk_label_new_with_mnemonic (text);
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label,
column, column + 1, row, row + 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (label);
if (! constrain &&
unconstrained_lower <= lower &&
unconstrained_upper >= upper)
{
GtkObject *constrained_adj;
constrained_adj = gtk_adjustment_new (value, lower, upper,
step_increment, page_increment,
0.0);
spinbutton = gimp_spin_button_new (&adjustment, value,
unconstrained_lower,
unconstrained_upper,
step_increment, page_increment, 0.0,
1.0, digits);
g_signal_connect
(G_OBJECT (constrained_adj), "value_changed",
G_CALLBACK (gimp_scale_entry_unconstrained_adjustment_callback),
adjustment);
g_signal_connect
(G_OBJECT (adjustment), "value_changed",
G_CALLBACK (gimp_scale_entry_unconstrained_adjustment_callback),
constrained_adj);
return_adj = adjustment;
adjustment = constrained_adj;
}
else
{
spinbutton = gimp_spin_button_new (&adjustment, value, lower, upper,
step_increment, page_increment, 0.0,
1.0, digits);
return_adj = adjustment;
}
gtk_label_set_mnemonic_widget (GTK_LABEL (label), spinbutton);
if (spinbutton_width > 0)
{
if (spinbutton_width < 17)
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), spinbutton_width);
else
gtk_widget_set_size_request (spinbutton, spinbutton_width, -1);
}
if (color_scale)
{
scale = gimp_color_scale_new (GTK_ORIENTATION_HORIZONTAL,
GIMP_COLOR_SELECTOR_VALUE);
gtk_range_set_adjustment (GTK_RANGE (scale),
GTK_ADJUSTMENT (adjustment));
}
else
{
scale = gtk_hscale_new (GTK_ADJUSTMENT (adjustment));
}
if (scale_width > 0)
gtk_widget_set_size_request (scale, scale_width, -1);
gtk_scale_set_digits (GTK_SCALE (scale), digits);
gtk_scale_set_draw_value (GTK_SCALE (scale), FALSE);
gtk_table_attach (GTK_TABLE (table), scale,
column + 1, column + 2, row, row + 1,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
gtk_widget_show (scale);
gtk_table_attach (GTK_TABLE (table), spinbutton,
column + 2, column + 3, row, row + 1,
GTK_SHRINK, GTK_SHRINK, 0, 0);
gtk_widget_show (spinbutton);
if (tooltip || help_id)
{
gimp_help_set_help_data (scale, tooltip, help_id);
gimp_help_set_help_data (spinbutton, tooltip, help_id);
}
g_object_set_data (G_OBJECT (return_adj), "label", label);
g_object_set_data (G_OBJECT (return_adj), "scale", scale);
g_object_set_data (G_OBJECT (return_adj), "spinbutton", spinbutton);
return return_adj;
}
/**
* gimp_scale_entry_new:
* @table: The #GtkTable the widgets will be attached to.
* @column: The column to start with.
* @row: The row to attach the widgets.
* @text: The text for the #GtkLabel which will appear
* left of the #GtkHScale.
* @scale_width: The minimum horizontal size of the #GtkHScale.
* @spinbutton_width: The minimum horizontal size of the #GtkSpinButton.
* @value: The initial value.
* @lower: The lower boundary.
* @upper: The upper boundary.
* @step_increment: The step increment.
* @page_increment: The page increment.
* @digits: The number of decimal digits.
* @constrain: %TRUE if the range of possible values of the
* #GtkSpinButton should be the same as of the #GtkHScale.
* @unconstrained_lower: The spinbutton's lower boundary
* if @constrain == %FALSE.
* @unconstrained_upper: The spinbutton's upper boundary
* if @constrain == %FALSE.
* @tooltip: A tooltip message for the scale and the spinbutton.
* @help_id: The widgets' help_id (see gimp_help_set_help_data()).
*
* This function creates a #GtkLabel, a #GtkHScale and a #GtkSpinButton and
* attaches them to a 3-column #GtkTable.
*
* Returns: The #GtkSpinButton's #GtkAdjustment.
**/
GtkObject *
gimp_scale_entry_new (GtkTable *table,
gint column,
gint row,
const gchar *text,
gint scale_width,
gint spinbutton_width,
gdouble value,
gdouble lower,
gdouble upper,
gdouble step_increment,
gdouble page_increment,
guint digits,
gboolean constrain,
gdouble unconstrained_lower,
gdouble unconstrained_upper,
const gchar *tooltip,
const gchar *help_id)
{
return gimp_scale_entry_new_internal (FALSE,
table, column, row,
text, scale_width, spinbutton_width,
value, lower, upper,
step_increment, page_increment,
digits,
constrain,
unconstrained_lower,
unconstrained_upper,
tooltip, help_id);
}
/**
* gimp_color_scale_entry_new:
* @table: The #GtkTable the widgets will be attached to.
* @column: The column to start with.
* @row: The row to attach the widgets.
* @text: The text for the #GtkLabel which will appear
* left of the #GtkHScale.
* @scale_width: The minimum horizontal size of the #GtkHScale.
* @spinbutton_width: The minimum horizontal size of the #GtkSpinButton.
* @value: The initial value.
* @lower: The lower boundary.
* @upper: The upper boundary.
* @step_increment: The step increment.
* @page_increment: The page increment.
* @digits: The number of decimal digits.
* @tooltip: A tooltip message for the scale and the spinbutton.
* @help_id: The widgets' help_id (see gimp_help_set_help_data()).
*
* This function creates a #GtkLabel, a #GimpColorScale and a
* #GtkSpinButton and attaches them to a 3-column #GtkTable.
*
* Returns: The #GtkSpinButton's #GtkAdjustment.
**/
GtkObject *
gimp_color_scale_entry_new (GtkTable *table,
gint column,
gint row,
const gchar *text,
gint scale_width,
gint spinbutton_width,
gdouble value,
gdouble lower,
gdouble upper,
gdouble step_increment,
gdouble page_increment,
guint digits,
const gchar *tooltip,
const gchar *help_id)
{
return gimp_scale_entry_new_internal (TRUE,
table, column, row,
text, scale_width, spinbutton_width,
value, lower, upper,
step_increment, page_increment,
digits,
TRUE, 0.0, 0.0,
tooltip, help_id);
}
/**
* gimp_scale_entry_set_sensitive:
* @adjustment: a #GtkAdjustment returned by gimp_scale_entry_new()
* @sensitive: a boolean value with the same semantics as the @sensitive
* parameter of gtk_widget_set_sensitive()
*
* Sets the sensitivity of the scale_entry's #GtkLabel, #GtkHScale and
* #GtkSpinbutton.
**/
void
gimp_scale_entry_set_sensitive (GtkObject *adjustment,
gboolean sensitive)
{
GtkWidget *widget;
g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
widget = GIMP_SCALE_ENTRY_LABEL (adjustment);
if (widget)
gtk_widget_set_sensitive (widget, sensitive);
widget = GIMP_SCALE_ENTRY_SCALE (adjustment);
if (widget)
gtk_widget_set_sensitive (widget, sensitive);
widget = GIMP_SCALE_ENTRY_SPINBUTTON (adjustment);
if (widget)
gtk_widget_set_sensitive (widget, sensitive);
}
static void
gimp_random_seed_update (GtkWidget *widget,
gpointer data)
{
GtkWidget *spinbutton = data;
/* Generate a new seed if the "New Seed" button was clicked or
* of the "Randomize" toggle is activated
*/
if (! GTK_IS_TOGGLE_BUTTON (widget) ||
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
gtk_spin_button_set_value (GTK_SPIN_BUTTON (spinbutton),
(guint) g_random_int ());
}
}
/**
* gimp_random_seed_new:
* @seed: A pointer to the variable which stores the random seed.
* @random_seed: A pointer to a boolean indicating whether seed should be
* initialised randomly or not.
*
* Creates a widget that allows the user to control how the random number
* generator is initialized.
*
* Returns: A #GtkHBox containing a #GtkSpinButton for the seed and
* a #GtkButton for setting a random seed.
**/
GtkWidget *
gimp_random_seed_new (guint *seed,
gboolean *random_seed)
{
GtkWidget *hbox;
GtkWidget *toggle;
GtkWidget *spinbutton;
GtkObject *adj;
GtkWidget *button;
g_return_val_if_fail (seed != NULL, NULL);
g_return_val_if_fail (random_seed != NULL, NULL);
hbox = gtk_hbox_new (FALSE, 4);
/* If we're being asked to generate a random seed, generate one. */
if (*random_seed)
*seed = g_random_int ();
spinbutton = gimp_spin_button_new (&adj, *seed,
0, (guint32) -1 , 1, 10, 0, 1, 0);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_uint_adjustment_update),
seed);
gimp_help_set_help_data (spinbutton,
_("Use this value for random number generator "
"seed - this allows you to repeat a "
"given \"random\" operation"), NULL);
button = gtk_button_new_with_mnemonic (_("_New Seed"));
gtk_misc_set_padding (GTK_MISC (GTK_BIN (button)->child), 2, 0);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
/* Send spinbutton as data so that we can change the value in
* gimp_random_seed_update()
*/
g_signal_connect (button, "clicked",
G_CALLBACK (gimp_random_seed_update),
spinbutton);
gimp_help_set_help_data (button,
_("Seed random number generator with a generated "
"random number"),
NULL);
toggle = gtk_check_button_new_with_label (_("Randomize"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), *random_seed);
gtk_box_pack_start (GTK_BOX (hbox), toggle, FALSE, FALSE, 0);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
random_seed);
/* Need to create a new seed when the "Randomize" toggle is activated */
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_random_seed_update),
spinbutton);
g_object_set_data (G_OBJECT (hbox), "spinbutton", spinbutton);
g_object_set_data (G_OBJECT (hbox), "button", button);
g_object_set_data (G_OBJECT (hbox), "toggle", toggle);
/* Set sensitivity data for the toggle, this stuff makes
* gimp_toggle_button_sensitive_update work
*/
g_object_set_data (G_OBJECT (toggle), "inverse_sensitive", spinbutton);
g_object_set_data (G_OBJECT (spinbutton), "inverse_sensitive", button);
/* Initialise sensitivity */
gimp_toggle_button_update (toggle, random_seed);
return hbox;
}
typedef struct
{
GimpChainButton *chainbutton;
gboolean chain_constrains_ratio;
gdouble orig_x;
gdouble orig_y;
gdouble last_x;
gdouble last_y;
} GimpCoordinatesData;
static void
gimp_coordinates_callback (GtkWidget *widget,
GimpCoordinatesData *gcd)
{
gdouble new_x;
gdouble new_y;
new_x = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0);
new_y = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1);
if (gimp_chain_button_get_active (gcd->chainbutton))
{
if (gcd->chain_constrains_ratio)
{
if ((gcd->orig_x != 0) && (gcd->orig_y != 0))
{
if (new_x != gcd->last_x)
{
gcd->last_x = new_x;
gcd->last_y = new_y = (new_x * gcd->orig_y) / gcd->orig_x;
g_signal_stop_emission_by_name (widget, "value_changed");
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 1,
new_y);
}
else if (new_y != gcd->last_y)
{
gcd->last_y = new_y;
gcd->last_x = new_x = (new_y * gcd->orig_x) / gcd->orig_y;
g_signal_stop_emission_by_name (widget, "value_changed");
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 0,
new_x);
}
}
}
else
{
if (new_x != gcd->last_x)
{
gcd->last_y = new_y = gcd->last_x = new_x;
g_signal_stop_emission_by_name (widget, "value_changed");
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 1, new_x);
}
else if (new_y != gcd->last_y)
{
gcd->last_x = new_x = gcd->last_y = new_y;
g_signal_stop_emission_by_name (widget, "value_changed");
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 0, new_y);
}
}
}
else
{
if (new_x != gcd->last_x)
gcd->last_x = new_x;
if (new_y != gcd->last_y)
gcd->last_y = new_y;
}
}
/**
* gimp_coordinates_new:
* @unit: The initial unit of the #GimpUnitMenu.
* @unit_format: A printf-like unit-format string as is used with
* gimp_unit_menu_new().
* @menu_show_pixels: %TRUE if the #GimpUnitMenu should contain an item
* for GIMP_UNIT_PIXEL.
* @menu_show_percent: %TRUE if the #GimpUnitMenu should contain an item
* for GIMP_UNIT_PERCENT.
* @spinbutton_width: The horizontal size of the #GimpSizeEntry's
* #GtkSpinButton's.
* @update_policy: The update policy for the #GimpSizeEntry.
* @chainbutton_active: %TRUE if the attached #GimpChainButton should be
* active.
* @chain_constrains_ratio: %TRUE if the chainbutton should constrain the
* fields' aspect ratio. If %FALSE, the values will
* be constrained.
* @xlabel: The label for the X coordinate.
* @x: The initial value of the X coordinate.
* @xres: The horizontal resolution in DPI.
* @lower_boundary_x: The lower boundary of the X coordinate.
* @upper_boundary_x: The upper boundary of the X coordinate.
* @xsize_0: The X value which will be treated as 0%.
* @xsize_100: The X value which will be treated as 100%.
* @ylabel: The label for the Y coordinate.
* @y: The initial value of the Y coordinate.
* @yres: The vertical resolution in DPI.
* @lower_boundary_y: The lower boundary of the Y coordinate.
* @upper_boundary_y: The upper boundary of the Y coordinate.
* @ysize_0: The Y value which will be treated as 0%.
* @ysize_100: The Y value which will be treated as 100%.
*
* Convenience function that creates a #GimpSizeEntry with two fields for x/y
* coordinates/sizes with a #GimpChainButton attached to constrain either the
* two fields' values or the ratio between them.
*
* Returns: The new #GimpSizeEntry.
**/
GtkWidget *
gimp_coordinates_new (GimpUnit unit,
const gchar *unit_format,
gboolean menu_show_pixels,
gboolean menu_show_percent,
gint spinbutton_width,
GimpSizeEntryUpdatePolicy update_policy,
gboolean chainbutton_active,
gboolean chain_constrains_ratio,
const gchar *xlabel,
gdouble x,
gdouble xres,
gdouble lower_boundary_x,
gdouble upper_boundary_x,
gdouble xsize_0, /* % */
gdouble xsize_100, /* % */
const gchar *ylabel,
gdouble y,
gdouble yres,
gdouble lower_boundary_y,
gdouble upper_boundary_y,
gdouble ysize_0, /* % */
gdouble ysize_100 /* % */)
{
GimpCoordinatesData *gcd;
GtkObject *adjustment;
GtkWidget *spinbutton;
GtkWidget *sizeentry;
GtkWidget *chainbutton;
spinbutton = gimp_spin_button_new (&adjustment, 1, 0, 1, 1, 10, 1, 1, 2);
if (spinbutton_width > 0)
{
if (spinbutton_width < 17)
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), spinbutton_width);
else
gtk_widget_set_size_request (spinbutton, spinbutton_width, -1);
}
sizeentry = gimp_size_entry_new (1, unit, unit_format,
menu_show_pixels,
menu_show_percent,
FALSE,
spinbutton_width,
update_policy);
gtk_table_set_col_spacing (GTK_TABLE (sizeentry), 0, 4);
gtk_table_set_col_spacing (GTK_TABLE (sizeentry), 2, 4);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (sizeentry),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_table_attach_defaults (GTK_TABLE (sizeentry), spinbutton, 1, 2, 0, 1);
gtk_widget_show (spinbutton);
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (sizeentry),
(update_policy == GIMP_SIZE_ENTRY_UPDATE_RESOLUTION) ||
(menu_show_pixels == FALSE) ?
GIMP_UNIT_INCH : GIMP_UNIT_PIXEL);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (sizeentry), 0, xres, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (sizeentry), 1, yres, TRUE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (sizeentry), 0,
lower_boundary_x, upper_boundary_x);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (sizeentry), 1,
lower_boundary_y, upper_boundary_y);
if (menu_show_percent)
{
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (sizeentry), 0,
xsize_0, xsize_100);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (sizeentry), 1,
ysize_0, ysize_100);
}
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (sizeentry), 0, x);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (sizeentry), 1, y);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (sizeentry), xlabel, 0, 0, 1.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (sizeentry), ylabel, 1, 0, 1.0);
chainbutton = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
if (chainbutton_active)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chainbutton), TRUE);
gtk_table_attach (GTK_TABLE (sizeentry), chainbutton, 2, 3, 0, 2,
GTK_SHRINK | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (chainbutton);
gcd = g_new (GimpCoordinatesData, 1);
gcd->chainbutton = GIMP_CHAIN_BUTTON (chainbutton);
gcd->chain_constrains_ratio = chain_constrains_ratio;
gcd->orig_x = x;
gcd->orig_y = y;
gcd->last_x = x;
gcd->last_y = y;
g_signal_connect_swapped (sizeentry, "destroy",
G_CALLBACK (g_free),
gcd);
g_signal_connect (sizeentry, "value_changed",
G_CALLBACK (gimp_coordinates_callback),
gcd);
g_object_set_data (G_OBJECT (sizeentry), "chainbutton", chainbutton);
return sizeentry;
}
/**
* gimp_pixmap_button_new:
* @xpm_data: The XPM data which will be passed to gimp_pixmap_new().
* @text: An optional text which will appear right of the pixmap.
*
* Convenience function that creates a #GtkButton with a #GimpPixmap
* and an optional #GtkLabel.
*
* Returns: The new #GtkButton.
**/
GtkWidget *
gimp_pixmap_button_new (gchar **xpm_data,
const gchar *text)
{
GtkWidget *button;
GtkWidget *pixmap;
button = gtk_button_new ();
pixmap = gimp_pixmap_new (xpm_data);
if (text)
{
GtkWidget *abox;
GtkWidget *hbox;
GtkWidget *label;
abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_container_add (GTK_CONTAINER (button), abox);
gtk_widget_show (abox);
hbox = gtk_hbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (abox), hbox);
gtk_widget_show (hbox);
gtk_box_pack_start (GTK_BOX (hbox), pixmap, FALSE, FALSE, 4);
gtk_widget_show (pixmap);
label = gtk_label_new_with_mnemonic (text);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), button);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 4);
gtk_widget_show (label);
}
else
{
gtk_container_add (GTK_CONTAINER (button), pixmap);
gtk_widget_show (pixmap);
}
return button;
}
/*
* Standard Callbacks
*/
/**
* gimp_toggle_button_sensitive_update:
* @toggle_button: The #GtkToggleButton the "set_sensitive" and
* "inverse_sensitive" lists are attached to.
*
* If you attached a pointer to a #GtkWidget with g_object_set_data() and
* the "set_sensitive" key to the #GtkToggleButton, the sensitive state of
* the attached widget will be set according to the toggle button's
* "active" state.
*
* You can attach an arbitrary list of widgets by attaching another
* "set_sensitive" data pointer to the first widget (and so on...).
*
* This function can also set the sensitive state according to the toggle
* button's inverse "active" state by attaching widgets with the
* "inverse_sensitive" key.
**/
void
gimp_toggle_button_sensitive_update (GtkToggleButton *toggle_button)
{
GtkWidget *set_sensitive;
gboolean active;
active = gtk_toggle_button_get_active (toggle_button);
set_sensitive =
g_object_get_data (G_OBJECT (toggle_button), "set_sensitive");
while (set_sensitive)
{
gtk_widget_set_sensitive (set_sensitive, active);
set_sensitive =
g_object_get_data (G_OBJECT (set_sensitive), "set_sensitive");
}
set_sensitive =
g_object_get_data (G_OBJECT (toggle_button), "inverse_sensitive");
while (set_sensitive)
{
gtk_widget_set_sensitive (set_sensitive, ! active);
set_sensitive =
g_object_get_data (G_OBJECT (set_sensitive), "inverse_sensitive");
}
}
/**
* gimp_toggle_button_update:
* @widget: A #GtkToggleButton.
* @data: A pointer to a #gint variable which will store the value of
* gtk_toggle_button_get_active().
*
* Note that this function calls gimp_toggle_button_sensitive_update().
**/
void
gimp_toggle_button_update (GtkWidget *widget,
gpointer data)
{
gint *toggle_val;
toggle_val = (gint *) data;
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
*toggle_val = TRUE;
else
*toggle_val = FALSE;
gimp_toggle_button_sensitive_update (GTK_TOGGLE_BUTTON (widget));
}
/**
* gimp_radio_button_update:
* @widget: A #GtkRadioButton.
* @data: A pointer to a #gint variable which will store the value of
* GPOINTER_TO_INT (g_object_get_data (@widget, "gimp-item-data")).
*
* Note that this function calls gimp_toggle_button_sensitive_update().
**/
void
gimp_radio_button_update (GtkWidget *widget,
gpointer data)
{
gint *toggle_val;
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
toggle_val = (gint *) data;
*toggle_val = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
}
gimp_toggle_button_sensitive_update (GTK_TOGGLE_BUTTON (widget));
}
/**
* gimp_menu_item_update:
* @widget: A #GtkMenuItem.
* @data: A pointer to a #gint variable which will store the value of
* GPOINTER_TO_INT (g_object_get_data (@widget, "gimp-item-data")).
**/
void
gimp_menu_item_update (GtkWidget *widget,
gpointer data)
{
gint *item_val;
item_val = (gint *) data;
*item_val = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
}
/**
* gimp_int_adjustment_update:
* @adjustment: A #GtkAdjustment.
* @data: A pointer to a #gint variable which will store the
* @adjustment's value.
*
* Note that the #GtkAdjustment's value (which is a #gdouble) will be
* rounded with RINT().
**/
void
gimp_int_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
gint *val;
val = (gint *) data;
*val = RINT (adjustment->value);
}
/**
* gimp_uint_adjustment_update:
* @adjustment: A #GtkAdjustment.
* @data: A pointer to a #guint variable which will store the
* @adjustment's value.
*
* Note that the #GtkAdjustment's value (which is a #gdouble) will be rounded
* with (#guint) (value + 0.5).
**/
void
gimp_uint_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
guint *val;
val = (guint *) data;
*val = (guint) (adjustment->value + 0.5);
}
/**
* gimp_float_adjustment_update:
* @adjustment: A #GtkAdjustment.
* @data: A pointer to a #gfloat varaiable which will store the
* @adjustment's value.
**/
void
gimp_float_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
gfloat *val;
val = (gfloat *) data;
*val = adjustment->value;
}
/**
* gimp_double_adjustment_update:
* @adjustment: A #GtkAdjustment.
* @data: A pointer to a #gdouble variable which will store the
* @adjustment's value.
**/
void
gimp_double_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
gdouble *val;
val = (gdouble *) data;
*val = adjustment->value;
}
/**
* gimp_unit_menu_update:
* @widget: A #GimpUnitMenu.
* @data: A pointer to a #GimpUnit variable which will store the unit menu's
* value.
*
* This callback can set the number of decimal digits of an arbitrary number
* of #GtkSpinButton's. To use this functionality, attach the spinbuttons
* as list of data pointers attached with g_object_set_data() with the
* "set_digits" key.
*
* See gimp_toggle_button_sensitive_update() for a description of how
* to set up the list.
**/
void
gimp_unit_menu_update (GtkWidget *widget,
gpointer data)
{
GimpUnit *val;
GtkWidget *spinbutton;
gint digits;
val = (GimpUnit *) data;
*val = gimp_unit_menu_get_unit (GIMP_UNIT_MENU (widget));
digits = ((*val == GIMP_UNIT_PIXEL) ? 0 :
((*val == GIMP_UNIT_PERCENT) ? 2 :
(MIN (6, MAX (3, gimp_unit_get_digits (*val))))));
digits += gimp_unit_menu_get_pixel_digits (GIMP_UNIT_MENU (widget));
spinbutton = g_object_get_data (G_OBJECT (widget), "set_digits");
while (spinbutton)
{
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (spinbutton), digits);
spinbutton = g_object_get_data (G_OBJECT (spinbutton), "set_digits");
}
}
/*
* Helper Functions
*/
/**
* gimp_table_attach_aligned:
* @table: The #GtkTable the widgets will be attached to.
* @column: The column to start with.
* @row: The row to attach the widgets.
* @label_text: The text for the #GtkLabel which will be attached left of
* the widget.
* @xalign: The horizontal alignment of the #GtkLabel.
* @yalign: The vertival alignment of the #GtkLabel.
* @widget: The #GtkWidget to attach right of the label.
* @colspan: The number of columns the widget will use.
* @left_align: %TRUE if the widget should be left-aligned.
*
* Note that the @label_text can be %NULL and that the widget will be
* attached starting at (@column + 1) in this case, too.
*
* Returns: The created #GtkLabel.
**/
GtkWidget *
gimp_table_attach_aligned (GtkTable *table,
gint column,
gint row,
const gchar *label_text,
gfloat xalign,
gfloat yalign,
GtkWidget *widget,
gint colspan,
gboolean left_align)
{
GtkWidget *label = NULL;
if (label_text)
{
label = gtk_label_new_with_mnemonic (label_text);
gtk_misc_set_alignment (GTK_MISC (label), xalign, yalign);
gtk_label_set_justify (GTK_LABEL (label), GTK_JUSTIFY_RIGHT);
gtk_table_attach (table, label,
column, column + 1,
row, row + 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (label);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), widget);
}
if (left_align)
{
GtkWidget *hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
gtk_widget_show (widget);
widget = hbox;
}
gtk_table_attach (table, widget,
column + 1, column + 1 + colspan,
row, row + 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (widget);
return label;
}
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