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SFML - Simple and Fast Multimedia Library

SFML v1.6

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Drawable.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/Drawable.hpp>
#include <SFML/Graphics/GraphicsContext.hpp>
#include <SFML/Window/Window.hpp>
#include <math.h>


namespace sf
{
Drawable::Drawable(const Vector2f& Position, const Vector2f& Scale, float Rotation, const Color& Col) :
myPosition     (Position),
myScale        (Scale),
myCenter       (0, 0),
myRotation     (Rotation),
myColor        (Col),
myBlendMode    (Blend::Alpha),
myNeedUpdate   (true),
myInvNeedUpdate(true)
{

}


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


void Drawable::SetPosition(float X, float Y)
{
    SetX(X);
    SetY(Y);
}


void Drawable::SetPosition(const Vector2f& Position)
{
    SetX(Position.x);
    SetY(Position.y);
}


void Drawable::SetX(float X)
{
    myPosition.x    = X;
    myNeedUpdate    = true;
    myInvNeedUpdate = true;
}


void Drawable::SetY(float Y)
{
    myPosition.y    = Y;
    myNeedUpdate    = true;
    myInvNeedUpdate = true;
}


void Drawable::SetScale(float ScaleX, float ScaleY)
{
    SetScaleX(ScaleX);
    SetScaleY(ScaleY);
}


void Drawable::SetScale(const Vector2f& Scale)
{
    SetScaleX(Scale.x);
    SetScaleY(Scale.y);
}


void Drawable::SetScaleX(float FactorX)
{
    if (FactorX > 0)
    {
        myScale.x       = FactorX;
        myNeedUpdate    = true;
        myInvNeedUpdate = true;
    }
}


void Drawable::SetScaleY(float FactorY)
{
    if (FactorY > 0)
    {
        myScale.y       = FactorY;
        myNeedUpdate    = true;
        myInvNeedUpdate = true;
    }
}


void Drawable::SetCenter(float CenterX, float CenterY)
{
    myCenter.x      = CenterX;
    myCenter.y      = CenterY;
    myNeedUpdate    = true;
    myInvNeedUpdate = true;
}


void Drawable::SetCenter(const Vector2f& Center)
{
    SetCenter(Center.x, Center.y);
}


void Drawable::SetRotation(float Rotation)
{
    myRotation = static_cast<float>(fmod(Rotation, 360));
    if (myRotation < 0)
        myRotation += 360.f;
    myNeedUpdate    = true;
    myInvNeedUpdate = true;
}


void Drawable::SetColor(const Color& Col)
{
    myColor = Col;
}


void Drawable::SetBlendMode(Blend::Mode Mode)
{
    myBlendMode = Mode;
}


const Vector2f& Drawable::GetPosition() const
{
    return myPosition;
}


const Vector2f& Drawable::GetScale() const
{
    return myScale;
}


const Vector2f& Drawable::GetCenter() const
{
    return myCenter;
}


float Drawable::GetRotation() const
{
    return myRotation;
}


const Color& Drawable::GetColor() const
{
    return myColor;
}


Blend::Mode Drawable::GetBlendMode() const
{
    return myBlendMode;
}


void Drawable::Move(float OffsetX, float OffsetY)
{
    SetX(myPosition.x + OffsetX);
    SetY(myPosition.y + OffsetY);
}


void Drawable::Move(const Vector2f& Offset)
{
    Move(Offset.x, Offset.y);
}


void Drawable::Scale(float FactorX, float FactorY)
{
    SetScaleX(myScale.x * FactorX);
    SetScaleY(myScale.y * FactorY);
}


void Drawable::Scale(const Vector2f& Factor)
{
    Scale(Factor.x, Factor.y);
}


void Drawable::Rotate(float Angle)
{
    SetRotation(myRotation + Angle);
}


sf::Vector2f Drawable::TransformToLocal(const sf::Vector2f& Point) const
{
    return GetInverseMatrix().Transform(Point);
}

sf::Vector2f Drawable::TransformToGlobal(const sf::Vector2f& Point) const
{
    return GetMatrix().Transform(Point);
}


const Matrix3& Drawable::GetMatrix() const
{
    // First recompute it if needed
    if (myNeedUpdate)
    {
        myMatrix.SetFromTransformations(myCenter, myPosition, myRotation, myScale);
        myNeedUpdate = false;
    }

    return myMatrix;
}


const Matrix3& Drawable::GetInverseMatrix() const
{
    // First recompute it if needed
    if (myInvNeedUpdate)
    {
        myInvMatrix     = GetMatrix().GetInverse();
        myInvNeedUpdate = false;
    }

    return myInvMatrix;
}


void Drawable::Draw(RenderTarget& Target) const
{
    // Save the current modelview matrix and set the new one
    GLCheck(glMatrixMode(GL_MODELVIEW));
    GLCheck(glPushMatrix());
    GLCheck(glMultMatrixf(GetMatrix().Get4x4Elements()));

    // Setup alpha-blending
    if (myBlendMode == Blend::None)
    {
        GLCheck(glDisable(GL_BLEND));
    }
    else
    {
        GLCheck(glEnable(GL_BLEND));

        switch (myBlendMode)
        {
            case Blend::Alpha :    GLCheck(glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)); break;
            case Blend::Add :      GLCheck(glBlendFunc(GL_SRC_ALPHA, GL_ONE));                 break;
            case Blend::Multiply : GLCheck(glBlendFunc(GL_DST_COLOR, GL_ZERO));                break;
            default :                                                                          break;
        }
    }

    // Set color
    GLCheck(glColor4f(myColor.r / 255.f, myColor.g / 255.f, myColor.b / 255.f, myColor.a / 255.f));

    // Let the derived class render the object geometry
    Render(Target);

    // Restore the previous modelview matrix
    GLCheck(glMatrixMode(GL_MODELVIEW));
    GLCheck(glPopMatrix());
}

} // namespace sf

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

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• Main Page
• Class List
  • sf::AudioResource
  • sf::Clock
  • sf::Color
  • sf::Context
  • sf::Drawable
  • 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::Font
  • sf::Ftp
  • sf::Ftp::Ftp::DirectoryResponse
  • sf::Ftp::Ftp::ListingResponse
  • sf::Ftp::Ftp::Response
  • sf::Glyph
  • sf::Http
  • sf::Http::Http::Request
  • sf::Http::Http::Response
  • sf::Image
  • sf::Input
  • sf::IPAddress
  • sf::Listener
  • sf::Lock
  • sf::Matrix3
  • sf::Music
  • sf::Mutex
  • sf::NonCopyable
  • sf::Packet
  • sf::PostFX
  • sf::Randomizer
  • sf::Rect< T >
  • sf::RenderTarget
  • sf::RenderWindow
  • sf::Resource< T >
  • sf::ResourcePtr< T >
  • sf::Selector< Type >
  • sf::SelectorBase
  • sf::Shape
  • sf::SocketHelper
  • sf::SocketTCP
  • sf::SocketUDP
  • sf::Sound
  • sf::SoundBuffer
  • sf::SoundBufferRecorder
  • sf::SoundRecorder
  • sf::SoundStream
  • 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
  • sf::Blend
  • sf::Joy
  • sf::Key
  • sf::Mouse
  • 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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