/* _______ __ __ __ ______ __ __ _______ __ __ * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ * * Copyright (c) 2004 - 2008 Olof Naess�n and Per Larsson * * * 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" namespace gcn { Graphics::Graphics() { mFont = NULL; } 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; } } 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, int dstX, int dstY) { drawImage(image, 0, 0, dstX, dstY, image->getWidth(), image->getHeight()); } void Graphics::setFont(Font* font) { mFont = font; } void Graphics::drawText(const std::string& text, int x, int y, Alignment alignment) { if (mFont == NULL) { throw GCN_EXCEPTION("No font set."); } switch (alignment) { case LEFT: mFont->drawString(this, text, x, y); break; case CENTER: mFont->drawString(this, text, x - mFont->getWidth(text) / 2, y); break; case RIGHT: mFont->drawString(this, text, x - mFont->getWidth(text), y); break; default: throw GCN_EXCEPTION("Unknown alignment."); } } }