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/* _______ __ __ __ ______ __ __ _______ __ __
* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
*
* Copyright (c) 2004 - 2008 Olof Naess�n and Per Larsson
* Copyright (C) 2011-2012 The ManaPlus Developers
*
*
* Per Larsson a.k.a finalman
* Olof Naess�n a.k.a jansem/yakslem
*
* Visit: http://guichan.sourceforge.net
*
* License: (BSD)
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Guichan nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* For comments regarding functions please see the header file.
*/
#include "guichan/graphics.hpp"
#include "guichan/exception.hpp"
#include "guichan/font.hpp"
#include "guichan/image.hpp"
#include "debug.h"
namespace gcn
{
Graphics::Graphics() :
mFont(nullptr)
{
}
bool Graphics::pushClipArea(Rectangle area)
{
// Ignore area with a negate width or height
// by simple pushing an empty clip area
// to the stack.
if (area.width < 0 || area.height < 0)
{
ClipRectangle carea;
mClipStack.push(carea);
return true;
}
if (mClipStack.empty())
{
ClipRectangle carea;
carea.x = area.x;
carea.y = area.y;
carea.width = area.width;
carea.height = area.height;
carea.xOffset = area.x;
carea.yOffset = area.y;
mClipStack.push(carea);
return true;
}
const ClipRectangle &top = mClipStack.top();
ClipRectangle carea;
carea = area;
carea.xOffset = top.xOffset + carea.x;
carea.yOffset = top.yOffset + carea.y;
carea.x += top.xOffset;
carea.y += top.yOffset;
// Clamp the pushed clip rectangle.
if (carea.x < top.x)
carea.x = top.x;
if (carea.y < top.y)
carea.y = top.y;
if (carea.x + carea.width > top.x + top.width)
{
carea.width = top.x + top.width - carea.x;
if (carea.width < 0)
carea.width = 0;
}
if (carea.y + carea.height > top.y + top.height)
{
carea.height = top.y + top.height - carea.y;
if (carea.height < 0)
carea.height = 0;
}
const bool result = carea.isIntersecting(top);
mClipStack.push(carea);
return result;
}
void Graphics::popClipArea()
{
if (mClipStack.empty())
throw GCN_EXCEPTION("Tried to pop clip area from empty stack.");
mClipStack.pop();
}
const ClipRectangle& Graphics::getCurrentClipArea()
{
if (mClipStack.empty())
throw GCN_EXCEPTION("The clip area stack is empty.");
return mClipStack.top();
}
void Graphics::drawImage(const Image* image A_UNUSED,
int dstX A_UNUSED, int dstY A_UNUSED)
{
}
/*
void Graphics::setFont(Font* font)
{
}
void Graphics::drawText(const std::string& text, int x, int y,
Alignment alignment)
{
}
*/
}
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