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gimp/plug-ins/gpc/gpc.c

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/****************************************************************************
* This is a convenience library for plugins for the GIMP v 0.99.8 or later.
* Documentation is available at http://www.rru.com/~meo/gimp/ .
*
* Copyright (C) 1997, 1998 Miles O'Neal <meo@rru.com> http://www.rru.com/~meo/
* GUI may include GTK code from:
* alienmap (Copyright (C) 1996, 1997 Daniel Cotting)
* plasma (Copyright (C) 1996 Stephen Norris),
* oilify (Copyright (C) 1996 Torsten Martinsen),
* ripple (Copyright (C) 1997 Brian Degenhardt) and
* whirl (Copyright (C) 1997 Federico Mena Quintero).
*
* 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.
*
****************************************************************************/
/****************************************************************************
* gpc: GTK Plug-in Convenience library
*
* history
* 1.4 - 30 Apr 1998 MEO
* added man page
* 1.3 - 29 Apr 1998 MEO
* GTK 1.0 port (minor tooltips change)
* restored tooltips to action buttons
* 1.2 - 11 Feb 1998 MEO
* added basic comments
* 1.1 - 3 Feb 1998 MEO
* removed tooltips from action buttons
* 1.0 - 2 Feb 1998 MEO
* FCS
*
* Please send any patches or suggestions to the author: meo@rru.com .
*
****************************************************************************/
#include <stdlib.h>
#include <time.h>
#include "libgimp/gimp.h"
#include "gtk/gtk.h"
/*
* TOGGLE UPDATE callback - toggles the TOGGLE widget's data
*/
static void
gpc_toggle_update(GtkWidget *widget, gpointer data) {
int *toggle_val;
toggle_val = (int *) data;
if (GTK_TOGGLE_BUTTON(widget)->active)
*toggle_val = TRUE;
else
*toggle_val = FALSE;
}
/*
* DESTROY callback - quit this plug-in
*/
void
gpc_close_callback(GtkWidget *widget, gpointer data) {
gtk_main_quit();
}
/*
* CANCEL BUTTON callback - go away without saving state, etc.
*/
void
gpc_cancel_callback(GtkWidget *widget, gpointer data) {
gtk_widget_destroy(GTK_WIDGET(data));
}
/*
* SCALE UPDATE callback - update the SCALE widget's data
*/
void
gpc_scale_update(GtkAdjustment *adjustment, double *scale_val) {
*scale_val = adjustment->value;
}
/*
* TEXT UPDATE callback - update the TEXT widget's data
*/
void
gpc_text_update(GtkWidget *widget, gpointer data) {
gint *text_val;
text_val = (gint *) data;
*text_val = atoi(gtk_entry_get_text(GTK_ENTRY(widget)));
}
/*
* TOOLTIPS ROUTINES
*/
static GtkTooltips *tips;
/*
* TOOLTIP INITIALIZATION
*/
void
gpc_setup_tooltips(GtkWidget *parent)
{
static GdkColor tips_fg, tips_bg;
tips = gtk_tooltips_new();
/* black as foreground: */
tips_fg.red = 0;
tips_fg.green = 0;
tips_fg.blue = 0;
gdk_color_alloc(gtk_widget_get_colormap(parent), &tips_fg);
/* postit yellow (khaki) as background: */
tips_bg.red = 61669;
tips_bg.green = 59113;
tips_bg.blue = 35979;
gdk_color_alloc(gtk_widget_get_colormap(parent), &tips_bg);
gtk_tooltips_set_colors(tips, &tips_bg, &tips_fg);
}
/*
* SET TOOLTIP for a widget
*/
void
gpc_set_tooltip(GtkWidget *widget, const char *tip)
{
if (tip && tip[0])
gtk_tooltips_set_tip(tips, widget, (char *) tip, NULL);
}
/*
* ADD ACTION BUTTON to a dialog
*/
void
gpc_add_action_button(char *label, GtkSignalFunc callback, GtkWidget *dialog,
char *tip)
{
GtkWidget *button;
button = gtk_button_new_with_label(label);
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
gtk_signal_connect(GTK_OBJECT(button), "clicked", callback, dialog);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area),
button, TRUE, TRUE, 0);
gtk_widget_grab_default(button);
gtk_widget_show(button);
gpc_set_tooltip(button, tip);
}
/*
* ADD RADIO BUTTON to a dialog
*/
void
gpc_add_radio_button(GSList **group, char *label, GtkWidget *box,
gint *value, char *tip)
{
GtkWidget *toggle;
toggle = gtk_radio_button_new_with_label(*group, label);
*group = gtk_radio_button_group(GTK_RADIO_BUTTON(toggle));
gtk_box_pack_start(GTK_BOX(box), toggle, FALSE, FALSE, 0);
gtk_signal_connect(GTK_OBJECT(toggle), "toggled",
(GtkSignalFunc) gpc_toggle_update, value);
gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(toggle), *value);
gtk_widget_show(toggle);
gtk_widget_show(box);
gpc_set_tooltip(toggle, tip);
}
/*
* ADD LABEL widget to a dialog at given location
*/
void
gpc_add_label(char *value, GtkWidget *table, int left, int right,
int top, int bottom)
{
GtkWidget *label;
label = gtk_label_new(value);
gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
gtk_table_attach(GTK_TABLE(table), label, left, right, top, bottom,
GTK_FILL | GTK_EXPAND, GTK_FILL, 5, 0);
gtk_widget_show(label);
}
/*
* ADD HORIZONTAL SCALE widget to a dialog at given location
*/
void
gpc_add_hscale(GtkWidget *table, int width, float low, float high,
gdouble *val, int left, int right, int top, int bottom, char *tip)
{
GtkWidget *scale;
GtkObject *scale_data;
scale_data = gtk_adjustment_new(*val, low, high, 1.0, 1.0, 0.0);
scale = gtk_hscale_new(GTK_ADJUSTMENT(scale_data));
gtk_widget_set_usize(scale, width, 0);
gtk_table_attach(GTK_TABLE(table), scale, left, right, top, bottom,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
gtk_scale_set_value_pos(GTK_SCALE(scale), GTK_POS_TOP);
gtk_scale_set_digits(GTK_SCALE(scale), 0);
gtk_range_set_update_policy(GTK_RANGE(scale), GTK_UPDATE_DELAYED);
gtk_signal_connect(GTK_OBJECT(scale_data), "value_changed",
(GtkSignalFunc) gpc_scale_update, val);
gtk_widget_show(scale);
gpc_set_tooltip(scale, tip);
}
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