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authorAndrei Karas <akaras@inbox.ru>2011-05-30 20:09:31 +0300
committerAndrei Karas <akaras@inbox.ru>2011-05-30 20:09:31 +0300
commitfc7928bab206892653a5a7279b384f2bcd323ea4 (patch)
treef1373ab222c03dd2372a4d16d67ee1f1e348d55b /src/guichan/graphics.cpp
parentd548e9bc6c987a4834ce3d65b33108f55e0f7a2c (diff)
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Add guichan files to automake
Diffstat (limited to 'src/guichan/graphics.cpp')
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1 files changed, 187 insertions, 0 deletions
diff --git a/src/guichan/graphics.cpp b/src/guichan/graphics.cpp
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+/* _______ __ __ __ ______ __ __ _______ __ __
+ * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
+ * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
+ * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * 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 "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.");
+ }
+ }
+}