documentation.HELP! SFML v1.6 Documentation

SFML - Simple and Fast Multimedia Library

SFML v1.6

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RenderTarget.cpp

//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2009 Laurent Gomila ([email protected])
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//

// Headers
#include <SFML/Graphics/RenderTarget.hpp>
#include <SFML/Graphics/Drawable.hpp>
#include <SFML/Graphics/GraphicsContext.hpp>
#include <iostream>


namespace sf
{
RenderTarget::RenderTarget() :
myCurrentView   (&myDefaultView),
myPreserveStates(false),
myIsDrawing     (false)
{

}


RenderTarget::~RenderTarget()
{
    // Nothing to do
}


void RenderTarget::Clear(const Color& FillColor)
{
    if (Activate(true))
    {
        // Clear the frame buffer
        GLCheck(glClearColor(FillColor.r / 255.f, FillColor.g / 255.f, FillColor.b / 255.f, FillColor.a / 255.f));
        GLCheck(glClear(GL_COLOR_BUFFER_BIT));

        Activate(false);
    }
}


void RenderTarget::Draw(const Drawable& Object)
{
    // Check whether we are called from the outside or from a previous call to Draw
    if (!myIsDrawing)
    {
        myIsDrawing = true;

        // Set our target as the current target for rendering
        if (Activate(true))
        {
            // Save the current render states and set the SFML ones
            if (myPreserveStates)
            {
                GLCheck(glPushAttrib(GL_COLOR_BUFFER_BIT | GL_CURRENT_BIT   | GL_ENABLE_BIT  |
                                     GL_TEXTURE_BIT      | GL_TRANSFORM_BIT | GL_VIEWPORT_BIT));
                GLCheck(glMatrixMode(GL_MODELVIEW));  GLCheck(glPushMatrix());
                GLCheck(glMatrixMode(GL_PROJECTION)); GLCheck(glPushMatrix());
                SetRenderStates();
            }

            // Set the window viewport and transform matrices
            GLCheck(glViewport(0, 0, GetWidth(), GetHeight()));
            GLCheck(glMatrixMode(GL_PROJECTION)); GLCheck(glLoadMatrixf(myCurrentView->GetMatrix().Get4x4Elements()));
            GLCheck(glMatrixMode(GL_MODELVIEW));  GLCheck(glLoadIdentity());

            // Let the object draw itself
            Object.Draw(*this);

            // Restore render states
            if (myPreserveStates)
            {
                GLCheck(glMatrixMode(GL_PROJECTION)); GLCheck(glPopMatrix());
                GLCheck(glMatrixMode(GL_MODELVIEW));  GLCheck(glPopMatrix());
                GLCheck(glPopAttrib());
            }

            // Deactivate rendering on this target
            Activate(false);
        }

        myIsDrawing = false;
    }
    else
    {
        // We are already called from a previous Draw : we don't need to set the states again, just draw the object
        Object.Draw(*this);
    }
}


void RenderTarget::SetView(const View& NewView)
{
    myCurrentView = &NewView;
}


const View& RenderTarget::GetView() const
{
    return *myCurrentView;
}


View& RenderTarget::GetDefaultView()
{
    return myDefaultView;
}


void RenderTarget::PreserveOpenGLStates(bool Preserve)
{
    myPreserveStates = Preserve;
}


void RenderTarget::Initialize()
{
    // Set the default rendering states
    SetRenderStates();

    // Setup the default view
    myDefaultView.SetFromRect(FloatRect(0, 0, static_cast<float>(GetWidth()), static_cast<float>(GetHeight())));
    SetView(myDefaultView);
}


void RenderTarget::SetRenderStates()
{
    GLCheck(glDisable(GL_ALPHA_TEST));
    GLCheck(glDisable(GL_DEPTH_TEST));
    GLCheck(glDisable(GL_LIGHTING)); 
}

} // namespace sf

 ::  Copyright © 2007-2008 Laurent Gomila, all rights reserved  ::  Documentation generated by doxygen 1.5.2  :: 

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  • sf::Font
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  • sf::SoundRecorder
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  • sf::SoundStream::SoundStream::Chunk
  • sf::Sprite
  • sf::String
  • sf::Thread
  • sf::Unicode
  • sf::Unicode::Unicode::Text
  • sf::Vector2< T >
  • sf::Vector3< T >
  • sf::VideoMode
  • sf::View
  • sf::Window
  • sf::WindowListener
  • sf::WindowSettings
• Class Hierarchy
  • sf::AudioResource
    • sf::Sound
      • sf::SoundStream
        • sf::Music
    • sf::SoundBuffer
  • sf::Clock
  • sf::Color
  • sf::Drawable
    • sf::PostFX
    • sf::Shape
    • sf::Sprite
    • sf::String
  • sf::Event
  • sf::Event::Event::JoyButtonEvent
  • sf::Event::Event::JoyMoveEvent
  • sf::Event::Event::KeyEvent
  • sf::Event::Event::MouseButtonEvent
  • sf::Event::Event::MouseMoveEvent
  • sf::Event::Event::MouseWheelEvent
  • sf::Event::Event::SizeEvent
  • sf::Event::Event::TextEvent
  • sf::Ftp::Ftp::Response
    • sf::Ftp::Ftp::DirectoryResponse
    • sf::Ftp::Ftp::ListingResponse
  • sf::Glyph
  • sf::Http::Http::Request
  • sf::Http::Http::Response
  • sf::IPAddress
  • sf::Listener
  • sf::Matrix3
  • sf::NonCopyable
    • sf::Context
    • sf::Ftp
    • sf::Http
    • sf::Input
    • sf::Lock
    • sf::Mutex
    • sf::Thread
      • sf::SoundRecorder
        • sf::SoundBufferRecorder
      • sf::SoundStream
    • sf::Window
      • sf::RenderWindow
  • sf::Packet
  • sf::Randomizer
  • sf::Rect< T >
  • sf::RenderTarget
    • sf::RenderWindow
  • sf::Resource< T >
  • sf::Resource< Font >
    • sf::Font
  • sf::Resource< Image >
    • sf::Image
  • sf::Resource< SoundBuffer >
    • sf::SoundBuffer
  • sf::ResourcePtr< T >
  • sf::SelectorBase
    • sf::Selector< Type >
  • sf::SocketHelper
  • sf::SocketTCP
  • sf::SocketUDP
  • sf::SoundStream::SoundStream::Chunk
  • sf::Unicode
  • sf::Unicode::Unicode::Text
  • sf::Vector2< T >
  • sf::Vector3< T >
  • sf::VideoMode
  • sf::View
  • sf::WindowListener
    • sf::Input
    • sf::Window
  • sf::WindowSettings
• Class Members
• Namespace List
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  • sf::Style
• Namespace Members
• File List
  • Arial.hpp
  • Audio.hpp
  • AudioDevice.cpp
  • AudioDevice.hpp
  • AudioResource.cpp
  • AudioResource.hpp
  • Clock.cpp
  • Clock.hpp
  • Color.cpp
  • Color.hpp
  • Config.hpp
  • Context.cpp
  • Context.hpp
  • Doxygen.hpp
  • Drawable.cpp
  • Drawable.hpp
  • Event.hpp
  • Font.cpp
  • Font.hpp
  • FontLoader.cpp
  • FontLoader.hpp
  • Ftp.cpp
  • Ftp.hpp
  • Glyph.hpp
  • Graphics.hpp
  • GraphicsContext.cpp
  • GraphicsContext.hpp
  • Http.cpp
  • Http.hpp
  • Image.cpp
  • Image.hpp
  • ImageLoader.cpp
  • ImageLoader.hpp
  • Input.cpp
  • Input.hpp
  • IPAddress.cpp
  • IPAddress.hpp
  • Cocoa/Joystick.cpp
  • Template for new ports/Joystick.cpp
  • Win32/Joystick.cpp
  • Cocoa/Joystick.hpp
  • Joystick.hpp
  • Template for new ports/Joystick.hpp
  • Win32/Joystick.hpp
  • Listener.cpp
  • Listener.hpp
  • Lock.cpp
  • Lock.hpp
  • Matrix3.cpp
  • Matrix3.hpp
  • Matrix3.inl
  • Music.cpp
  • Music.hpp
  • Mutex.cpp
  • Mutex.hpp
  • Win32/Mutex.hpp
  • Network.hpp
  • NonCopyable.hpp
  • OpenAL.hpp
  • OpenGL.hpp
  • Packet.cpp
  • Packet.hpp
  • Platform.cpp
  • Platform.hpp
  • Win32/Platform.hpp
  • PostFX.cpp
  • PostFX.hpp
  • Randomizer.cpp
  • Randomizer.hpp
  • Rect.hpp
  • Rect.inl
  • RenderTarget.cpp
  • RenderTarget.hpp
  • RenderWindow.cpp
  • RenderWindow.hpp
  • Resource.hpp
  • Resource.inl
  • ResourcePtr.inl
  • Selector.hpp
  • Selector.inl
  • SelectorBase.cpp
  • SelectorBase.hpp
  • SFML_Main.cpp
  • Shape.cpp
  • Shape.hpp
  • Sleep.cpp
  • Sleep.hpp
  • SocketHelper.cpp
  • SocketHelper.hpp
  • Win32/SocketHelper.hpp
  • Sockets.hpp
  • SocketTCP.cpp
  • SocketTCP.hpp
  • SocketUDP.cpp
  • SocketUDP.hpp
  • Sound.cpp
  • Sound.hpp
  • SoundBuffer.cpp
  • SoundBuffer.hpp
  • SoundBufferRecorder.cpp
  • SoundBufferRecorder.hpp
  • SoundFile.cpp
  • SoundFile.hpp
  • SoundFileDefault.cpp
  • SoundFileDefault.hpp
  • SoundFileOgg.cpp
  • SoundFileOgg.hpp
  • SoundRecorder.cpp
  • SoundRecorder.hpp
  • SoundStream.cpp
  • SoundStream.hpp
  • Sprite.cpp
  • Sprite.hpp
  • String.cpp
  • String.hpp
  • System.hpp
  • Thread.cpp
  • Thread.hpp
  • Win32/Thread.hpp
  • Unicode.cpp
  • Unicode.hpp
  • Unicode.inl
  • Vector2.hpp
  • Vector2.inl
  • Vector3.hpp
  • Vector3.inl
  • VideoMode.cpp
  • VideoMode.hpp
  • Cocoa/VideoModeSupport.cpp
  • Template for new ports/VideoModeSupport.cpp
  • Win32/VideoModeSupport.cpp
  • Cocoa/VideoModeSupport.hpp
  • Template for new ports/VideoModeSupport.hpp
  • VideoModeSupport.hpp
  • Win32/VideoModeSupport.hpp
  • View.cpp
  • View.hpp
  • Window.cpp
  • Window/Window.hpp
  • Window.hpp
  • WindowHandle.hpp
  • WindowImpl.cpp
  • WindowImpl.hpp
  • WindowImplCocoa.hpp
  • WindowImplWin32.cpp
  • WindowImplWin32.hpp
  • WindowImplXXX.cpp
  • WindowImplXXX.hpp
  • WindowListener.hpp
  • WindowSettings.hpp
  • WindowStyle.hpp

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