--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ext/guichan-0.8.2/src/hge/hgegraphics.cpp	Mon Jan 11 23:34:52 2010 +0000
@@ -0,0 +1,343 @@
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * 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/hge/hgegraphics.hpp"
+
+#include "guichan/cliprectangle.hpp"
+#include "guichan/exception.hpp"
+#include "guichan/rectangle.hpp"
+#include "guichan/hge/hgeimage.hpp"
+
+namespace gcn
+{
+    HGE *HGEGraphics::mHGE = NULL;
+
+    HGEGraphics::HGEGraphics()
+        :mClipNull(false)
+    {
+        mHGE = hgeCreate(HGE_VERSION);
+
+        mHardwareColor = 0;
+    }
+
+    HGEGraphics::~HGEGraphics()
+    {
+        mHGE->Release();
+    }
+
+    void HGEGraphics::_beginDraw()
+    {
+        pushClipArea(Rectangle(0, 
+                               0,
+                               mHGE->System_GetState(HGE_SCREENWIDTH), 
+                               mHGE->System_GetState(HGE_SCREENHEIGHT)));
+    }
+
+    void HGEGraphics::_endDraw()
+    {
+        // pop the clip area pushed in _beginDraw
+        popClipArea();
+    }
+
+    bool HGEGraphics::pushClipArea(Rectangle area)
+    {
+        bool result = Graphics::pushClipArea(area);
+
+        const ClipRectangle top = mClipStack.top();
+
+        // HGE won't let you set clip areas
+        // that have zero width or height
+        // so we have to check for that.
+        if (top.width == 0 || top.height == 0)
+        {
+            mClipNull = true;
+        }
+        else
+        {
+            mClipNull = false;
+            mHGE->Gfx_SetTransform(top.xOffset,
+                                   top.yOffset);
+            mHGE->Gfx_SetClipping(top.x, 
+                                  top.y, 
+                                  top.width, 
+                                  top.height);
+        }
+        return result;
+    }
+
+    void HGEGraphics::popClipArea()
+    {
+        Graphics::popClipArea();
+
+        if (mClipStack.empty())
+        {
+            mHGE->Gfx_SetClipping();
+
+            return;
+        }
+        else
+        {
+            const ClipRectangle top = mClipStack.top();
+
+            // HGE won't let you set clip areas
+            //that have zero width or height
+            // so we have to check for that.
+            if (top.width == 0 || top.height == 0)
+            {
+                mClipNull = true;
+            }
+            else
+            {
+                mClipNull = false;
+                mHGE->Gfx_SetTransform(top.xOffset,
+                                       top.yOffset);
+                mHGE->Gfx_SetClipping(top.x, 
+                                      top.y, 
+                                      top.width, 
+                                      top.height);
+            }
+        }
+    }
+
+    void HGEGraphics::drawImage(const Image *image, 
+                                int srcX, 
+                                int srcY, 
+                                int dstX, 
+                                int dstY, 
+                                int width, 
+                                int height)
+    {
+        if (mClipNull)
+        {
+            return;
+        }
+
+        const HGEImage *hgeImage = static_cast<const HGEImage*>(image);
+
+        if (hgeImage == NULL)
+        {
+            throw GCN_EXCEPTION("Trying to draw an image of unknown format, must be an HGEImage.");
+        }
+
+        ClipRectangle const top = mClipStack.top();
+
+        dstX += top.xOffset;
+        dstY += top.yOffset;
+
+        hgeImage->getSprite()->SetTextureRect(srcX, srcY, width, height);
+        hgeImage->getSprite()->Render(dstX, dstY);
+    }
+
+    void HGEGraphics::drawImage(const Image *image, int dstX, int dstY)
+    {
+        if (mClipNull)
+        {
+            return;
+        }
+       
+        drawImage(image, 0, 0, dstX, dstY, image->getWidth(), image->getHeight());
+    }
+
+    void HGEGraphics::drawPoint(int x, int y)
+    {
+        if (mClipNull)
+        {
+            return;
+        }
+
+        ClipRectangle const top = mClipStack.top();
+
+        x += top.xOffset;
+        y += top.yOffset;
+
+        mHGE->Gfx_RenderLine(x, y, x + 1, y, mHardwareColor);
+    }
+
+    void HGEGraphics::drawLine(int x1, int y1, int x2, int y2)
+    {
+        if (mClipNull)
+        {
+            return;
+        }
+
+        // As HGE omits the last pixel we need to adjust the coordinates
+        // before drawing the line. If it's a vertical or horizontal line
+        // all we have to do is add the omitted pixel.
+        if (y1 == y2 || x1 == x2)
+        {
+            x2++;
+            y2++;
+        }
+        // If it's not a vertical or horizontal line it gets a little bit
+        // trickier.
+        else 
+        {
+            // If y2 is greater than y1 then we know y2 will be omitted as
+            // it will be a part of the last pixel coordinate.
+            if (y2 > y1)
+            {
+                y2++;
+            }
+            // Else will y1 be omitted.
+            else
+            {
+                y1++;
+            }
+            // The same thing applies for the x coordinates. If x2 is greater 
+            // than x1 then we know x2 will be omitted as it will be a part of
+            // the last pixel coordinate.
+            if (x2 > x1)
+            {
+                x2++;
+            }
+            // Else will x1 be omitted.
+            else
+            {
+                x1++;
+            }
+        }
+       
+        ClipRectangle const top = mClipStack.top();
+
+        x1 += top.xOffset;
+        y1 += top.yOffset;
+        x2 += top.xOffset;
+        y2 += top.yOffset;
+
+        mHGE->Gfx_RenderLine(x1, y1, x2, y2, mHardwareColor);
+    }
+
+    void HGEGraphics::drawRectangle(const Rectangle &rectangle)
+    {
+        if (mClipNull)
+        {
+            return;
+        }
+
+        int x1 = rectangle.x;
+        int y1 = rectangle.y;
+        int x2 = rectangle.x + rectangle.width;
+        int y2 = rectangle.y + rectangle.height;
+
+        ClipRectangle const top = mClipStack.top();
+
+        x1 += top.xOffset;
+        y1 += top.yOffset;
+        x2 += top.xOffset;
+        y2 += top.yOffset;
+     
+        mHGE->Gfx_RenderLine(x1, y1 + 1, x2, y1, mHardwareColor);
+        mHGE->Gfx_RenderLine(x2, y1 + 1, x2, y2 - 1, mHardwareColor);
+        mHGE->Gfx_RenderLine(x2, y2, x1 + 1, y2, mHardwareColor);
+        mHGE->Gfx_RenderLine(x1 + 1, y2, x1 + 1, y1 + 1, mHardwareColor);
+    }
+
+    void HGEGraphics::fillRectangle(const Rectangle &rectangle)
+    {
+        if (mClipNull)
+        {
+            return;
+        }
+
+        // We need to compensate for the fact that HGE doesn't
+        // seem to include the the coordinate pixels when rendering
+        // a quad.
+        int x1 = rectangle.x;
+        int y1 = rectangle.y;
+        int x2 = rectangle.x + rectangle.width;
+        int y2 = rectangle.y + rectangle.height;
+
+        ClipRectangle const top = mClipStack.top();
+
+        x1 += top.xOffset;
+        y1 += top.yOffset;
+        x2 += top.xOffset;
+        y2 += top.yOffset;
+
+        hgeQuad quad;
+
+        quad.tex = NULL;
+
+        quad.v[0].x   = x1;
+        quad.v[0].y   = y1;
+        quad.v[0].col = mHardwareColor;
+
+        quad.v[1].x   = x2;
+        quad.v[1].y   = y1;
+        quad.v[1].col = mHardwareColor;
+
+        quad.v[2].x   = x2;
+        quad.v[2].y   = y2;
+        quad.v[2].col = mHardwareColor;
+
+        quad.v[3].x   = x1;
+        quad.v[3].y   = y2;
+        quad.v[3].col = mHardwareColor;
+
+        int i;
+        for (i = 0; i < 4; ++i)
+        {
+            quad.v[i].z = 0.5f;
+        }
+
+        quad.blend = BLEND_DEFAULT;
+
+        mHGE->Gfx_RenderQuad(&quad);
+    }
+
+    void HGEGraphics::setColor(const Color &color)
+    {
+        mColor = color;
+
+        mHardwareColor = ARGB(color.a, color.r, color.g, color.b);  
+    }
+
+    const Color& HGEGraphics::getColor() const
+    {
+        return  mColor;
+    }
+}