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gimp/libgimpwidgets/gimpwidgets.c

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1999 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 "gimphelpui.h"
#include "gimpunitmenu.h"
#include "gimpwidgets.h"
#include "gimpmath.h"
#include "gimpintl.h"
/*
* Forward declarations
*/
static void gimp_toggle_button_sensitive_update (GtkToggleButton *toggle_button);
/*
* Widget Constructors
*/
GtkWidget *
gimp_option_menu_new (gboolean menu_only,
/* specify menu items as va_list:
* gchar *label,
* GtkSignalFunc callback,
* gpointer data,
* gpointer user_data,
* GtkWidget **widget_ptr,
* gboolean active
*/
...)
{
GtkWidget *menu;
GtkWidget *menuitem;
/* menu item variables */
gchar *label;
GtkSignalFunc callback;
gpointer data;
gpointer user_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, gchar*);
for (i = 0; label; i++)
{
callback = va_arg (args, GtkSignalFunc);
data = va_arg (args, gpointer);
user_data = va_arg (args, gpointer);
widget_ptr = va_arg (args, GtkWidget **);
active = va_arg (args, gboolean);
if (label != (gpointer) 1)
menuitem = gtk_menu_item_new_with_label (label);
else
menuitem = gtk_menu_item_new ();
gtk_menu_append (GTK_MENU (menu), menuitem);
gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
callback,
data);
if (user_data)
gtk_object_set_user_data (GTK_OBJECT (menuitem), user_data);
if (widget_ptr)
*widget_ptr = menuitem;
gtk_widget_show (menuitem);
/* remember the initial menu item */
if (active)
initial_index = i;
label = va_arg (args, 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;
}
GtkWidget *
gimp_option_menu_new2 (gboolean menu_only,
GtkSignalFunc menu_item_callback,
gpointer data,
gpointer initial, /* user_data */
/* specify menu items as va_list:
* gchar *label,
* gpointer user_data,
* GtkWidget **widget_ptr,
*/
...)
{
GtkWidget *menu;
GtkWidget *menuitem;
/* menu item variables */
gchar *label;
gpointer user_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, gchar*);
for (i = 0; label; i++)
{
user_data = va_arg (args, gpointer);
widget_ptr = va_arg (args, GtkWidget **);
if (label != (gpointer) 1)
menuitem = gtk_menu_item_new_with_label (label);
else
menuitem = gtk_menu_item_new ();
gtk_menu_append (GTK_MENU (menu), menuitem);
gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
menu_item_callback,
data);
if (user_data)
gtk_object_set_user_data (GTK_OBJECT (menuitem), user_data);
if (widget_ptr)
*widget_ptr = menuitem;
gtk_widget_show (menuitem);
/* remember the initial menu item */
if (user_data == initial)
initial_index = i;
label = va_arg (args, 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;
}
GtkWidget *
gimp_radio_group_new (gboolean in_frame,
gchar *frame_title,
/* specify radio buttons as va_list:
* gchar *label,
* GtkSignalFunc callback,
* gpointer data,
* gpointer user_data,
* GtkWidget **widget_ptr,
* gboolean active,
*/
...)
{
GtkWidget *vbox;
GtkWidget *frame = NULL;
GtkWidget *button;
GSList *group;
/* radio button variables */
gchar *label;
GtkSignalFunc callback;
gpointer data;
gpointer user_data;
GtkWidget **widget_ptr;
gboolean active;
va_list args;
vbox = gtk_vbox_new (FALSE, 1);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
if (in_frame)
{
frame = gtk_frame_new (frame_title);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
}
group = NULL;
/* create the radio buttons */
va_start (args, frame_title);
label = va_arg (args, gchar*);
while (label)
{
callback = va_arg (args, GtkSignalFunc);
data = va_arg (args, gpointer);
user_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_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
if (user_data)
gtk_object_set_user_data (GTK_OBJECT (button), user_data);
if (widget_ptr)
*widget_ptr = button;
if (active)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
gtk_signal_connect (GTK_OBJECT (button), "toggled",
callback,
data);
gtk_widget_show (button);
label = va_arg (args, gchar*);
}
va_end (args);
if (in_frame)
return frame;
return vbox;
}
GtkWidget *
gimp_radio_group_new2 (gboolean in_frame,
gchar *frame_title,
GtkSignalFunc radio_button_callback,
gpointer data,
gpointer initial, /* user_data */
/* specify radio buttons as va_list:
* gchar *label,
* gpointer user_data,
* GtkWidget **widget_ptr,
*/
...)
{
GtkWidget *vbox;
GtkWidget *frame = NULL;
GtkWidget *button;
GSList *group;
/* radio button variables */
gchar *label;
gpointer user_data;
GtkWidget **widget_ptr;
va_list args;
vbox = gtk_vbox_new (FALSE, 1);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
if (in_frame)
{
frame = gtk_frame_new (frame_title);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
}
group = NULL;
/* create the radio buttons */
va_start (args, initial);
label = va_arg (args, gchar*);
while (label)
{
user_data = va_arg (args, gpointer);
widget_ptr = va_arg (args, GtkWidget **);
if (label != (gpointer) 1)
button = gtk_radio_button_new_with_label (group, label);
else
button = gtk_radio_button_new (group);
group = gtk_radio_button_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
if (user_data)
gtk_object_set_user_data (GTK_OBJECT (button), user_data);
if (widget_ptr)
*widget_ptr = button;
if (initial == user_data)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
gtk_signal_connect (GTK_OBJECT (button), "toggled",
radio_button_callback,
data);
gtk_widget_show (button);
label = va_arg (args, gchar*);
}
va_end (args);
if (in_frame)
return frame;
return vbox;
}
GtkWidget *
gimp_spin_button_new (GtkObject **adjustment, /* return value */
gfloat value,
gfloat lower,
gfloat upper,
gfloat step_increment,
gfloat page_increment,
gfloat page_size,
gfloat 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_shadow_type (GTK_SPIN_BUTTON (spinbutton),
GTK_SHADOW_NONE);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_widget_set_usize (spinbutton, 75, -1);
return spinbutton;
}
GtkObject *
gimp_scale_entry_new (GtkTable *table,
gint column,
gint row,
gchar *text,
gint scale_usize,
gint spinbutton_usize,
gfloat value,
gfloat lower,
gfloat upper,
gfloat step_increment,
gfloat page_increment,
guint digits,
gchar *tooltip,
gchar *private_tip)
{
GtkWidget *label;
GtkWidget *scale;
GtkWidget *spinbutton;
GtkObject *adjustment;
label = gtk_label_new (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);
spinbutton = gimp_spin_button_new (&adjustment, value, lower, upper,
step_increment, page_increment, 0.0,
1.0, digits);
if (spinbutton_usize > 0)
gtk_widget_set_usize (spinbutton, spinbutton_usize, -1);
scale = gtk_hscale_new (GTK_ADJUSTMENT (adjustment));
if (scale_usize > 0)
gtk_widget_set_usize (scale, scale_usize, -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_EXPAND | GTK_FILL, 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_FILL, 0, 0);
gtk_widget_show (spinbutton);
if (tooltip || private_tip)
{
gimp_help_set_help_data (scale, tooltip, private_tip);
gimp_help_set_help_data (spinbutton, tooltip, private_tip);
}
return adjustment;
}
static void
gimp_random_seed_toggle_update (GtkWidget *widget,
gpointer data)
{
gint *toggle_val;
toggle_val = (gint *) data;
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
*toggle_val = (gint) gtk_object_get_data (GTK_OBJECT (widget),
"time_true");
else
*toggle_val = (gint) gtk_object_get_data (GTK_OBJECT (widget),
"time_false");
gimp_toggle_button_sensitive_update (GTK_TOGGLE_BUTTON (widget));
}
GtkWidget *
gimp_random_seed_new (gint *seed,
gint *use_time,
gint time_true,
gint time_false)
{
GtkWidget *hbox;
GtkWidget *spinbutton;
GtkObject *adj;
GtkWidget *time_button;
hbox = gtk_hbox_new (FALSE, 4);
spinbutton = gimp_spin_button_new (&adj, *seed,
0, G_MAXRAND, 1, 10, 0, 1, 0);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
GTK_SIGNAL_FUNC (gimp_int_adjustment_update),
seed);
gtk_widget_show (spinbutton);
gimp_help_set_help_data (spinbutton,
_("If the \"Time\" button is not pressed, "
"use this value for random number generator "
"seed - this allows you to repeat a "
"given \"random\" operation"), NULL);
time_button = gtk_toggle_button_new_with_label (_("Time"));
gtk_misc_set_padding (GTK_MISC (GTK_BIN (time_button)->child), 2, 0);
gtk_signal_connect (GTK_OBJECT (time_button), "toggled",
GTK_SIGNAL_FUNC (gimp_random_seed_toggle_update),
use_time);
gtk_box_pack_end (GTK_BOX (hbox), time_button, FALSE, FALSE, 0);
gtk_widget_show (time_button);
gimp_help_set_help_data (time_button,
_("Seed random number generator from the current "
"time - this guarantees a reasonable "
"randomization"), NULL);
gtk_object_set_data (GTK_OBJECT (time_button), "time_true",
(gpointer) time_true);
gtk_object_set_data (GTK_OBJECT (time_button), "time_false",
(gpointer) time_false);
gtk_object_set_data (GTK_OBJECT (time_button), "inverse_sensitive",
spinbutton);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (time_button),
*use_time == time_true);
return hbox;
}
/*
* Standard Callbacks
*/
static void
gimp_toggle_button_sensitive_update (GtkToggleButton *toggle_button)
{
GtkWidget *set_sensitive;
gboolean active;
active = gtk_toggle_button_get_active (toggle_button);
set_sensitive =
gtk_object_get_data (GTK_OBJECT (toggle_button), "set_sensitive");
while (set_sensitive)
{
gtk_widget_set_sensitive (GTK_WIDGET (set_sensitive), active);
set_sensitive =
gtk_object_get_data (GTK_OBJECT (set_sensitive), "set_sensitive");
}
set_sensitive =
gtk_object_get_data (GTK_OBJECT (toggle_button), "inverse_sensitive");
while (set_sensitive)
{
gtk_widget_set_sensitive (GTK_WIDGET (set_sensitive), ! active);
set_sensitive =
gtk_object_get_data (GTK_OBJECT (set_sensitive), "inverse_sensitive");
}
}
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));
}
void
gimp_menu_item_update (GtkWidget *widget,
gpointer data)
{
gint *item_val;
item_val = (gint *) data;
*item_val = (gint) gtk_object_get_user_data (GTK_OBJECT (widget));
}
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 = (gint) gtk_object_get_user_data (GTK_OBJECT (widget));
}
gimp_toggle_button_sensitive_update (GTK_TOGGLE_BUTTON (widget));
}
void
gimp_int_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
gint *val;
val = (gint *) data;
*val = (gint) (adjustment->value + 0.5);
}
void
gimp_float_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
gfloat *val;
val = (gfloat *) data;
*val = adjustment->value;
}
void
gimp_double_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
gdouble *val;
val = (gdouble *) data;
*val = adjustment->value;
}
void
gimp_unit_menu_update (GtkWidget *widget,
gpointer data)
{
GUnit *val;
GtkWidget *spinbutton;
gint digits;
val = (GUnit *) data;
*val = gimp_unit_menu_get_unit (GIMP_UNIT_MENU (widget));
digits = ((*val == UNIT_PIXEL) ? 0 :
((*val == UNIT_PERCENT) ? 2 :
(MIN (6, MAX (3, gimp_unit_get_digits (*val))))));
spinbutton =
gtk_object_get_data (GTK_OBJECT (widget), "set_digits");
while (spinbutton)
{
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (spinbutton), digits);
spinbutton = gtk_object_get_data (GTK_OBJECT (spinbutton), "set_digits");
}
}
/*
* Helper Functions
*/
/* add aligned label & widget to a two-column table */
void
gimp_table_attach_aligned (GtkTable *table,
gint row,
gchar *label_text,
gfloat xalign,
gfloat yalign,
GtkWidget *widget,
gboolean left_adjust)
{
if (label_text)
{
GtkWidget *label;
label = gtk_label_new (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, GTK_WIDGET (label), 0, 1, row, row + 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
}
if (left_adjust)
{
GtkWidget *alignment;
alignment = gtk_alignment_new (0.0, 0.5, 0.0, 0.0);
gtk_table_attach (table, alignment, 1, 2, row, row + 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (alignment);
gtk_container_add (GTK_CONTAINER (alignment), widget);
}
else
{
gtk_table_attach_defaults (table, widget, 1, 2, row, row + 1);
}
gtk_widget_show (widget);
}
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