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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2008 Laurent Gomila (laurent.gom@gmail.com)
//
// 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/RenderWindow.hpp>
#include <SFML/Graphics/Drawable.hpp>
#include <SFML/Graphics/Image.hpp>
#include <SFML/Graphics/GraphicsContext.hpp>
#include <iostream>
namespace sf
{
////////////////////////////////////////////////////////////
/// Default constructor
////////////////////////////////////////////////////////////
RenderWindow::RenderWindow()
{
// Nothing to do
}
////////////////////////////////////////////////////////////
/// Construct the window
////////////////////////////////////////////////////////////
RenderWindow::RenderWindow(VideoMode Mode, const std::string& Title, unsigned long WindowStyle, const WindowSettings& Params)
{
Create(Mode, Title, WindowStyle, Params);
}
////////////////////////////////////////////////////////////
/// Construct the window from an existing control
////////////////////////////////////////////////////////////
RenderWindow::RenderWindow(WindowHandle Handle, const WindowSettings& Params)
{
Create(Handle, Params);
}
////////////////////////////////////////////////////////////
/// Destructor
////////////////////////////////////////////////////////////
RenderWindow::~RenderWindow()
{
// Nothing to do
}
////////////////////////////////////////////////////////////
/// /see RenderTarget::Activate
////////////////////////////////////////////////////////////
bool RenderWindow::Activate(bool Active)
{
// For performances and consistency reasons, we only handle activation
if (Active)
return SetActive();
else
return true;
}
////////////////////////////////////////////////////////////
/// Get the width of the rendering region of the window
////////////////////////////////////////////////////////////
unsigned int RenderWindow::GetWidth() const
{
return sf::Window::GetWidth();
}
////////////////////////////////////////////////////////////
/// Get the height of the rendering region of the window
////////////////////////////////////////////////////////////
unsigned int RenderWindow::GetHeight() const
{
return sf::Window::GetHeight();
}
////////////////////////////////////////////////////////////
/// Save the content of the window to an image
////////////////////////////////////////////////////////////
Image RenderWindow::Capture() const
{
// Get the window dimensions
const unsigned int Width = GetWidth();
const unsigned int Height = GetHeight();
// Set our window as the current target for rendering
if (SetActive())
{
// Make sure we have a valid context
priv::GraphicsContext Ctx;
// Get pixels from the backbuffer
std::vector<Uint8> Pixels(Width * Height * 4);
Uint8* PixelsPtr = &Pixels[0];
GLCheck(glReadPixels(0, 0, Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, PixelsPtr));
// Flip the pixels
unsigned int Pitch = Width * 4;
for (unsigned int y = 0; y < Height / 2; ++y)
std::swap_ranges(PixelsPtr + y * Pitch, PixelsPtr + (y + 1) * Pitch, PixelsPtr + (Height - y - 1) * Pitch);
// Create an image from the pixel buffer and return it
return Image(Width, Height, PixelsPtr);
}
else
{
return Image(Width, Height, Color::White);
}
}
////////////////////////////////////////////////////////////
/// Convert a point in window coordinates into view coordinates
////////////////////////////////////////////////////////////
sf::Vector2f RenderWindow::ConvertCoords(unsigned int WindowX, unsigned int WindowY, const View* TargetView) const
{
// Use the current view if none has been passed
if (!TargetView)
TargetView = &GetView();
float Left = TargetView->GetCenter().x - TargetView->GetHalfSize().x;
float Top = TargetView->GetCenter().y - TargetView->GetHalfSize().y;
float Right = TargetView->GetCenter().x + TargetView->GetHalfSize().x;
float Bottom = TargetView->GetCenter().y + TargetView->GetHalfSize().y;
return sf::Vector2f(Left + WindowX * (Right - Left) / GetWidth(),
Top + WindowY * (Bottom - Top) / GetHeight());
}
////////////////////////////////////////////////////////////
/// Called after the window has been created
////////////////////////////////////////////////////////////
void RenderWindow::OnCreate()
{
// We can now initialize the render target part
RenderTarget::Initialize();
}
} // namespace sf
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