/*  Copyright (C) 2001-2002  Kenichi Suto
 *
 *  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.
*/


#include "defs.h"
#include "global.h"

gint shadow_height = 4;

gboolean create_pixmap(CANVAS *canvas)
{

	if(canvas->pixmap)
		gdk_pixmap_unref(canvas->pixmap);
	canvas->pixmap = gdk_pixmap_new( window->window, 
//					 canvas->width, 
					 canvas->max_width, 
					 canvas->height,
					 -1 );
	return(TRUE);
}


gboolean destroy_canvas(CANVAS *canvas)
{

        g_assert(canvas != NULL);

	if(canvas->pixmap)
		gdk_pixmap_unref(canvas->pixmap);

	gdk_gc_destroy(canvas->gc);
	free(canvas);

	return(TRUE);
}


gboolean fill_canvas(CANVAS *canvas)
{

	GdkGC *gc=NULL;

        g_assert(canvas != NULL);

	gc = gdk_gc_new(canvas->window->window);
	gdk_gc_set_foreground(gc, &canvas->window->style->bg[GTK_STATE_NORMAL]);
	gdk_gc_set_background(gc, &canvas->window->style->bg[GTK_STATE_NORMAL]);
	gdk_draw_rectangle( canvas->pixmap, 
			    gc,
			    TRUE, 0,0,
//			    canvas->width, canvas->height);
			    canvas->max_width, canvas->height);

	gdk_gc_destroy(gc);
}

CANVAS *create_canvas(GtkWidget *window)
{
	CANVAS *canvas;

	g_assert(window != NULL);

	canvas = (CANVAS *)calloc(sizeof(CANVAS), 1);
        g_assert(canvas != NULL);

	canvas->window = window;
	canvas->pixmap = NULL;
	canvas->x = h_border;
	canvas->y = font_height + v_border;	
	canvas->width = 0;
	canvas->height = 0;
	canvas->max_width = 0;
	canvas->font = font_normal;
	canvas->indent = 0;
	canvas->line_height = font_height;	

	canvas->gc = gdk_gc_new(canvas->window->window);
	gdk_gc_set_foreground(canvas->gc, &canvas->window->style->fg[GTK_STATE_NORMAL]);
	gdk_gc_set_background(canvas->gc, &canvas->window->style->bg[GTK_STATE_NORMAL]);

	return(canvas);
}

gboolean clear_canvas(CANVAS *canvas)
{
	canvas->x = h_border;
	canvas->y = font_height + v_space + v_border;	
//	canvas->max_width = 0;
	canvas->indent = 0;
}

gboolean simulate_canvas(CANVAS *canvas, BOOK_INFO *binfo, gchar *text, gint max_width, gint max_height)
{
	DRAW_TEXT l_text;

	canvas->width = max_width;
	canvas->height = max_height;
	canvas->max_width = max_width;

	l_text.text = text;
	l_text.length = strlen(text);

	draw_content(canvas, &l_text, binfo, NULL);

	canvas->height = canvas->y;
	canvas->height += 10;  // ちょっと大きめにしないと文字が切れてしまう

	if(canvas->height < max_height)
		canvas->height = max_height - shadow_height;

	if(canvas->width < max_width)
		canvas->width = max_width;

	return(TRUE);
}

gboolean draw_canvas(CANVAS *canvas, BOOK_INFO *binfo, gchar *text)
{
	DRAW_TEXT l_text;

	l_text.text = text;
	l_text.length = strlen(text);

	draw_content(canvas, &l_text, binfo, NULL);
}