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/*
Copyright (C) 2000 Paul Wilkins
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.
*/
/* highlight.c by Paul Wilkins 1/2/2000 */
#include <stdio.h>
#include <gtk/gtk.h>
#include <gdk_imlib.h>
#include <gdk/gdk.h>
#include "globals.h"
#include "draw_image.h"
#include "render_image.h"
#include "highlight.h"
int timeout_exists = 0;
int highlight_timeout(gpointer data){
static int state = 0;
int xx, yy;
GdkGC *gc;
struct IMAGE_INFO *inf;
if(globals.do_highlight == 0) return TRUE;
/* search for the images to highlight and draw the highlight here */
for(yy=0; yy<globals.cur_opt.nPixH; yy++){
for(xx=0; xx<globals.cur_opt.nPixW; xx++){
inf = &(globals.image[yy][xx]);
if(inf->do_highlight){
if(state == 1){
gc = GTK_WIDGET(globals.picDA)->style->white_gc;
} else {
gc = GTK_WIDGET(globals.picDA)->style->black_gc;
}
gdk_draw_rectangle(GTK_WIDGET(globals.picDA)->window,
gc,
FALSE,
xx*globals.cur_opt.pixW, yy*globals.cur_opt.pixH,
globals.cur_opt.pixW-1, globals.cur_opt.pixH-1);
}
}
}
state = !state;
/* make sure our drawing happens now */
gdk_flush();
return TRUE;
}
int highlight_changed(){
/* redraw the screen */
redraw_screen(0, 0, globals.cur_opt.width, globals.cur_opt.height);
/* redraw the highlights */
highlight_timeout(NULL);
return 1;
}
int start_highlight_timer(){
/* start a timer if one does not already exist */
if(!timeout_exists){
globals.timer = gtk_timeout_add(200, highlight_timeout, NULL);
timeout_exists = 1;
}
return 1;
}
int stop_highlight_timer(){
if(timeout_exists){
gtk_timeout_remove(globals.timer);
timeout_exists = 0;
}
/* redraw the screen */
redraw_screen(0, 0, globals.cur_opt.width, globals.cur_opt.height);
return 1;
}
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