/* AbiWord
 * Copyright (C) 1998 AbiSource, Inc.
 * 
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  
 * 02110-1301 USA.
 */

#include <stdio.h>
#include <stdlib.h>
#include "ut_string.h"
#include "gr_Painter.h"
#include "ap_Dialog_PageNumbers.h"

AP_Dialog_PageNumbers::AP_Dialog_PageNumbers (XAP_DialogFactory * pDlgFactory,
					      XAP_Dialog_Id id)
	: XAP_Dialog_NonPersistent(pDlgFactory,id, "interface/dialogpagenumbers")
{
	m_align   = id_CALIGN;
	m_control = id_FTR;
	
	m_answer  = a_OK;
	m_pFrame  = NULL;
	m_preview = NULL;
}

AP_Dialog_PageNumbers::~AP_Dialog_PageNumbers(void)
{
	DELETEP(m_preview);
}

AP_Dialog_PageNumbers::tAnswer AP_Dialog_PageNumbers::getAnswer(void)
{
	return m_answer;
}

AP_Dialog_PageNumbers::tAlign AP_Dialog_PageNumbers::getAlignment(void)
{
	return m_align;
}

bool AP_Dialog_PageNumbers::isHeader(void)
{
	return (m_control == id_HDR);
}

bool AP_Dialog_PageNumbers::isFooter(void)
{
	return (m_control == id_FTR);
}

void AP_Dialog_PageNumbers::_updatePreview(AP_Dialog_PageNumbers::tAlign align, 
					   AP_Dialog_PageNumbers::tControl ctrl)
{
	UT_return_if_fail (m_preview);
	m_preview->setHdrFtr (ctrl);
	m_preview->setAlign (align);
	m_preview->queueDraw ();
}

void AP_Dialog_PageNumbers::_createPreviewFromGC(GR_Graphics * gc,
						 UT_uint32 width,
						 UT_uint32 height)
{
	UT_return_if_fail (gc);
	m_preview = new AP_Preview_PageNumbers (gc);
	UT_return_if_fail (m_preview);
	
	m_preview->setWindowSize (width, height);  
}

/**************************************************************************/

AP_Preview_PageNumbers::AP_Preview_PageNumbers (GR_Graphics * gc)
  : XAP_Preview (gc)
{
	char fontString [10];
	sprintf(fontString, "%dpt", 8);
	
	GR_Font * found =  m_gc->findFont("Times New Roman", "normal",
									  "", "normal", "", fontString,
									  NULL);
	
	m_gc->setFont(found);
	
	UT_UCS4_cloneString_char (&m_str, "1");
}

AP_Preview_PageNumbers::~AP_Preview_PageNumbers(void)
{
	FREEP(m_str);
}

void AP_Preview_PageNumbers::setHdrFtr(AP_Dialog_PageNumbers::tControl control)
{
	m_control = control;
}

void AP_Preview_PageNumbers::setAlign(AP_Dialog_PageNumbers::tAlign align)
{
	m_align = align;
}

void AP_Preview_PageNumbers::draw (const UT_Rect *clip)
{
	UT_UNUSED(clip);
	GR_Painter painter(m_gc);

	int x = 0, y = 0;	
	
	UT_sint32 iWidth = m_gc->tlu (getWindowWidth());
	UT_sint32 iHeight = m_gc->tlu (getWindowHeight());
	UT_Rect pageRect(m_gc->tlu(7), m_gc->tlu(7), iWidth - m_gc->tlu(14), iHeight - m_gc->tlu(14));	
	
	painter.fillRect(GR_Graphics::CLR3D_Background, 0, 0, iWidth, iHeight);
	painter.clearArea(pageRect.left, pageRect.top, pageRect.width, pageRect.height);
	
	// actually draw some "text" on the preview for a more realistic appearance
	
	m_gc->setLineWidth(m_gc->tlu(1));
	m_gc->setColor3D(GR_Graphics::CLR3D_Foreground);
	
	UT_sint32 iFontHeight = m_gc->getFontHeight ();
	UT_sint32 step = m_gc->tlu(4);
	
	for (int txty = pageRect.top + (2 * iFontHeight); txty < pageRect.top + pageRect.height - (2 * iFontHeight); txty += step)
	{
		painter.drawLine (pageRect.left + m_gc->tlu(5), txty, pageRect.left + pageRect.width - m_gc->tlu(5), txty);
	}
	
	// draw in the page number as a header or footer, properly aligned
	
	switch (m_align)
	{
		case AP_Dialog_PageNumbers::id_RALIGN : x = pageRect.left + pageRect.width - (2 * m_gc->measureUnRemappedChar(*m_str)); break;
		case AP_Dialog_PageNumbers::id_CALIGN : x = pageRect.left + (int)(pageRect.width / 2); break;
		case AP_Dialog_PageNumbers::id_LALIGN : x = pageRect.left + m_gc->measureUnRemappedChar(*m_str); break;
	}
	
	switch (m_control)
	{
		case AP_Dialog_PageNumbers::id_HDR : y = pageRect.top + (int)(iFontHeight / 2); break;
		case AP_Dialog_PageNumbers::id_FTR : y = pageRect.top + pageRect.height - (int)(1.5 * iFontHeight); break;
	}
	
	//m_gc->setColor3D(GR_Graphics::CLR3D_Foreground);
	painter.drawChars (m_str, 0, UT_UCS4_strlen(m_str), x, y);
}
