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Diffstat (limited to 'src/gui/base/graphics.cpp')
| -rw-r--r-- | src/gui/base/graphics.cpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/gui/base/graphics.cpp b/src/gui/base/graphics.cpp new file mode 100644 index 000000000..229543bc9 --- /dev/null +++ b/src/gui/base/graphics.cpp @@ -0,0 +1,179 @@ +/* + * The ManaPlus Client + * Copyright (C) 2011-2014 The ManaPlus Developers + * + * This file is part of The ManaPlus Client. + * + * 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 + * 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, see <http://www.gnu.org/licenses/>. + */ + +/* _______ __ __ __ ______ __ __ _______ __ __ + * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ + * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / + * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / + * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / + * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / + * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ + * + * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson + * + * + * Per Larsson a.k.a finalman + * Olof Naessén 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 "gui/base/graphics.hpp" + +#include "gui/base/exception.hpp" +#include "gui/base/font.hpp" +#include "gui/base/image.hpp" + +#include "debug.h" + +namespace gcn +{ + + Graphics::Graphics() : + mClipStack(), + 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) + { + } +*/ +} // namespace gcn |