SFML - Simple and Fast Multimedia Library Main Page Namespaces Classes Files File List RenderWindow.cpp00001 00002 // 00003 // SFML - Simple and Fast Multimedia Library 00004 // Copyright (C) 2007-2009 Laurent Gomila ([e-mail]) 00005 // 00006 // This software is provided 'as-is', without any express or implied warranty. 00007 // In no event will the authors be held liable for any damages arising from the use of this software. 00008 // 00009 // Permission is granted to anyone to use this software for any purpose, 00010 // including commercial applications, and to alter it and redistribute it freely, 00011 // subject to the following restrictions: 00012 // 00013 // 1. The origin of this software must not be misrepresented; 00014 // you must not claim that you wrote the original software. 00015 // If you use this software in a product, an acknowledgment 00016 // in the product documentation would be appreciated but is not required. 00017 // 00018 // 2. Altered source versions must be plainly marked as such, 00019 // and must not be misrepresented as being the original software. 00020 // 00021 // 3. This notice may not be removed or altered from any source distribution. 00022 // 00024 00026 // Headers 00028 #include <SFML/Graphics/RenderWindow.hpp> 00029 #include <SFML/Graphics/Drawable.hpp> 00030 #include <SFML/Graphics/Image.hpp> 00031 #include <SFML/Graphics/GraphicsContext.hpp> 00032 #include <iostream> 00033 00034 00035 namespace sf 00036 { 00040 RenderWindow::RenderWindow() 00041 { 00042 // Nothing to do 00043 } 00044 00045 00049 RenderWindow::RenderWindow(VideoMode Mode, const std::string& Title, unsigned long WindowStyle, const WindowSettings& Params) 00050 { 00051 Create(Mode, Title, WindowStyle, Params); 00052 } 00053 00054 00058 RenderWindow::RenderWindow(WindowHandle Handle, const WindowSettings& Params) 00059 { 00060 Create(Handle, Params); 00061 } 00062 00063 00067 RenderWindow::~RenderWindow() 00068 { 00069 // Nothing to do 00070 } 00071 00072 00076 bool RenderWindow::Activate(bool Active) 00077 { 00078 // For performances and consistency reasons, we only handle activation 00079 if (Active) 00080 return SetActive(); 00081 else 00082 return true; 00083 } 00084 00085 00089 unsigned int RenderWindow::GetWidth() const 00090 { 00091 return sf::Window::GetWidth(); 00092 } 00093 00094 00098 unsigned int RenderWindow::GetHeight() const 00099 { 00100 return sf::Window::GetHeight(); 00101 } 00102 00103 00107 Image RenderWindow::Capture() const 00108 { 00109 // Get the window dimensions 00110 const unsigned int Width = GetWidth(); 00111 const unsigned int Height = GetHeight(); 00112 00113 // Set our window as the current target for rendering 00114 if (SetActive()) 00115 { 00116 // Make sure we have a valid context 00117 priv::GraphicsContext Ctx; 00118 00119 // Get pixels from the backbuffer 00120 std::vector<Uint8> Pixels(Width * Height * 4); 00121 Uint8* PixelsPtr = &Pixels[0]; 00122 GLCheck(glReadPixels(0, 0, Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, PixelsPtr)); 00123 00124 // Flip the pixels 00125 unsigned int Pitch = Width * 4; 00126 for (unsigned int y = 0; y < Height / 2; ++y) 00127 std::swap_ranges(PixelsPtr + y * Pitch, PixelsPtr + (y + 1) * Pitch, PixelsPtr + (Height - y - 1) * Pitch); 00128 00129 // Create an image from the pixel buffer and return it 00130 return Image(Width, Height, PixelsPtr); 00131 } 00132 else 00133 { 00134 return Image(Width, Height, Color::White); 00135 } 00136 } 00137 00138 00142 sf::Vector2f RenderWindow::ConvertCoords(unsigned int WindowX, unsigned int WindowY, const View* TargetView) const 00143 { 00144 // Use the current view if none has been passed 00145 if (!TargetView) 00146 TargetView = &GetView(); 00147 00148 float Left = TargetView->GetCenter().x - TargetView->GetHalfSize().x; 00149 float Top = TargetView->GetCenter().y - TargetView->GetHalfSize().y; 00150 float Right = TargetView->GetCenter().x + TargetView->GetHalfSize().x; 00151 float Bottom = TargetView->GetCenter().y + TargetView->GetHalfSize().y; 00152 00153 return sf::Vector2f(Left + WindowX * (Right - Left) / GetWidth(), 00154 Top + WindowY * (Bottom - Top) / GetHeight()); 00155 } 00156 00157 00161 void RenderWindow::OnCreate() 00162 { 00163 // We can now initialize the render target part 00164 RenderTarget::Initialize(); 00165 } 00166 00167 } // namespace sf  ::  Copyright © 2007-2008 Laurent Gomila, all rights reserved  ::  Documentation generated by doxygen 1.5.2  ::