Visualization Library v1.0.3A lightweight C++ OpenGL middleware for 2D/3D graphics |
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00001 /**************************************************************************************/ 00002 /* */ 00003 /* Visualization Library */ 00004 /* http://visualizationlibrary.org */ 00005 /* */ 00006 /* Copyright (c) 2005-2010, Michele Bosi */ 00007 /* All rights reserved. */ 00008 /* */ 00009 /* Redistribution and use in source and binary forms, with or without modification, */ 00010 /* are permitted provided that the following conditions are met: */ 00011 /* */ 00012 /* - Redistributions of source code must retain the above copyright notice, this */ 00013 /* list of conditions and the following disclaimer. */ 00014 /* */ 00015 /* - Redistributions in binary form must reproduce the above copyright notice, this */ 00016 /* list of conditions and the following disclaimer in the documentation and/or */ 00017 /* other materials provided with the distribution. */ 00018 /* */ 00019 /* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND */ 00020 /* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED */ 00021 /* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */ 00022 /* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR */ 00023 /* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */ 00024 /* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */ 00025 /* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */ 00026 /* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */ 00027 /* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */ 00028 /* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 00029 /* */ 00030 /**************************************************************************************/ 00031 00032 #ifndef Viewport_INCLUDE_ONCE 00033 #define Viewport_INCLUDE_ONCE 00034 00035 #include <vlGraphics/link_config.hpp> 00036 #include <vlCore/Object.hpp> 00037 #include <vlCore/Rect.hpp> 00038 #include <vlCore/Vector4.hpp> 00039 #include <vlCore/vlnamespace.hpp> 00040 00041 namespace vl 00042 { 00043 //----------------------------------------------------------------------------- 00044 // Viewport 00045 //----------------------------------------------------------------------------- 00051 class VLGRAPHICS_EXPORT Viewport: public Object 00052 { 00053 VL_INSTRUMENT_CLASS(vl::Viewport, Object) 00054 00055 public: 00056 Viewport(); 00057 Viewport(int x, int y, int w, int h); 00058 00059 void activate() const; 00060 00061 bool null() { return mWidth == 0 || mHeight == 0; } 00062 00063 void set(int x, int y, int w, int h) { mX = x; mY = y; mWidth = w; mHeight = h; } 00064 void setX(int x) { mX = x; } 00065 int x() const { return mX; } 00066 void setY(int y) { mY = y; } 00067 int y() const { return mY; } 00068 void setWidth(int width) { mWidth = width; } 00069 int width() const { return mWidth; } 00070 void setHeight(int height) { mHeight = height; } 00071 int height() const { return mHeight; } 00072 fvec2 center() const { return fvec2(mX + mWidth / 2.0f, mY + mHeight / 2.0f); } 00073 00077 RectI rect() const { return RectI(x(),y(),width(),height()); } 00078 00079 void setClearColor(float r, float g, float b, float a) { mClearColor = fvec4(r,g,b,a); } 00080 void setClearColor(const fvec4& color) { mClearColor = color; } 00081 const fvec4& clearColor() const { return mClearColor; } 00082 00083 void setClearColorInt(int r, int g, int b, int a) { mClearColorInt = ivec4(r,g,b,a); } 00084 void setClearColorInt(const ivec4& color) { mClearColorInt = color; } 00085 const ivec4& clearColorInt() const { return mClearColorInt; } 00086 00087 void setClearColorUInt(unsigned int r, unsigned int g, unsigned int b, unsigned int a) { mClearColorUInt = uvec4(r,g,b,a); } 00088 void setClearColorUInt(const uvec4& color) { mClearColorUInt = color; } 00089 const uvec4& clearColorUInt() const { return mClearColorUInt; } 00090 00091 void setClearStencil(int stencil) { mClearStencil = stencil; } 00092 int clearStencil() const { return mClearStencil; } 00093 00094 void setClearDepth(real depth) { mClearDepth = depth; } 00095 real clearDepth() const { return mClearDepth; } 00096 00098 void setClearFlags(EClearFlags clear_flags) { mClearFlags = clear_flags; } 00099 EClearFlags clearFlags() const { return mClearFlags; } 00100 00101 void setClearColorMode(EClearColorMode mode) { mClearColorMode = mode; } 00102 EClearColorMode clearColorMode() const { return mClearColorMode; } 00103 00107 bool isPointInside(int x, int y, int framebuffer_height) const; 00108 00113 void enableScissorSetup(bool enable); 00114 00115 protected: 00116 fvec4 mClearColor; 00117 ivec4 mClearColorInt; 00118 uvec4 mClearColorUInt; 00119 00120 real mClearDepth; 00121 int mClearStencil; 00122 EClearFlags mClearFlags; 00123 EClearColorMode mClearColorMode; 00124 int mX; 00125 int mY; 00126 int mWidth; 00127 int mHeight; 00128 00129 bool mSetupScissor; 00130 }; 00131 } 00132 00133 #endif