SFML/include/SFML/Graphics/RenderWindow.hpp

268 lines
9.7 KiB
C++

////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2014 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.
//
////////////////////////////////////////////////////////////
#ifndef SFML_RENDERWINDOW_HPP
#define SFML_RENDERWINDOW_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Graphics/Export.hpp>
#include <SFML/Graphics/RenderTarget.hpp>
#include <SFML/Graphics/Image.hpp>
#include <SFML/Window/Window.hpp>
#include <string>
namespace sf
{
////////////////////////////////////////////////////////////
/// \brief Window that can serve as a target for 2D drawing
///
////////////////////////////////////////////////////////////
class SFML_GRAPHICS_API RenderWindow : public Window, public RenderTarget
{
public :
////////////////////////////////////////////////////////////
/// \brief Default constructor
///
/// This constructor doesn't actually create the window,
/// use the other constructors or call create() to do so.
///
////////////////////////////////////////////////////////////
RenderWindow();
////////////////////////////////////////////////////////////
/// \brief Construct a new window
///
/// This constructor creates the window with the size and pixel
/// depth defined in \a mode. An optional style can be passed to
/// customize the look and behaviour of the window (borders,
/// title bar, resizable, closable, ...).
///
/// The fourth parameter is an optional structure specifying
/// advanced OpenGL context settings such as antialiasing,
/// depth-buffer bits, etc. You shouldn't care about these
/// parameters for a regular usage of the graphics module.
///
/// \param mode Video mode to use (defines the width, height and depth of the rendering area of the window)
/// \param title Title of the window
/// \param style %Window style, a bitwise OR combination of sf::Style enumerators
/// \param settings Additional settings for the underlying OpenGL context
///
////////////////////////////////////////////////////////////
RenderWindow(VideoMode mode, const String& title, Uint32 style = Style::Default, const ContextSettings& settings = ContextSettings());
////////////////////////////////////////////////////////////
/// \brief Construct the window from an existing control
///
/// Use this constructor if you want to create an SFML
/// rendering area into an already existing control.
///
/// The second parameter is an optional structure specifying
/// advanced OpenGL context settings such as antialiasing,
/// depth-buffer bits, etc. You shouldn't care about these
/// parameters for a regular usage of the graphics module.
///
/// \param handle Platform-specific handle of the control (\a HWND on
/// Windows, \a %Window on Linux/FreeBSD, \a NSWindow on OS X)
/// \param settings Additional settings for the underlying OpenGL context
///
////////////////////////////////////////////////////////////
explicit RenderWindow(WindowHandle handle, const ContextSettings& settings = ContextSettings());
////////////////////////////////////////////////////////////
/// \brief Destructor
///
/// Closes the window and frees all the resources attached to it.
///
////////////////////////////////////////////////////////////
virtual ~RenderWindow();
////////////////////////////////////////////////////////////
/// \brief Get the size of the rendering region of the window
///
/// The size doesn't include the titlebar and borders
/// of the window.
///
/// \return Size in pixels
///
////////////////////////////////////////////////////////////
virtual Vector2u getSize() const;
////////////////////////////////////////////////////////////
/// \brief Copy the current contents of the window to an image
///
/// This is a slow operation, whose main purpose is to make
/// screenshots of the application. If you want to update an
/// image with the contents of the window and then use it for
/// drawing, you should rather use a sf::Texture and its
/// update(Window&) function.
/// You can also draw things directly to a texture with the
/// sf::RenderTexture class.
///
/// \return Image containing the captured contents
///
////////////////////////////////////////////////////////////
Image capture() const;
protected:
////////////////////////////////////////////////////////////
/// \brief Function called after the window has been created
///
/// This function is called so that derived classes can
/// perform their own specific initialization as soon as
/// the window is created.
///
////////////////////////////////////////////////////////////
virtual void onCreate();
////////////////////////////////////////////////////////////
/// \brief Function called after the window has been resized
///
/// This function is called so that derived classes can
/// perform custom actions when the size of the window changes.
///
////////////////////////////////////////////////////////////
virtual void onResize();
private :
////////////////////////////////////////////////////////////
/// \brief Activate the target for rendering
///
/// \param active True to make the target active, false to deactivate it
///
/// \return True if the function succeeded
///
////////////////////////////////////////////////////////////
virtual bool activate(bool active);
};
} // namespace sf
#endif // SFML_RENDERWINDOW_HPP
////////////////////////////////////////////////////////////
/// \class sf::RenderWindow
/// \ingroup graphics
///
/// sf::RenderWindow is the main class of the Graphics module.
/// It defines an OS window that can be painted using the other
/// classes of the graphics module.
///
/// sf::RenderWindow is derived from sf::Window, thus it inherits
/// all its features: events, window management, OpenGL rendering,
/// etc. See the documentation of sf::Window for a more complete
/// description of all these features, as well as code examples.
///
/// On top of that, sf::RenderWindow adds more features related to
/// 2D drawing with the graphics module (see its base class
/// sf::RenderTarget for more details).
/// Here is a typical rendering and event loop with a sf::RenderWindow:
///
/// \code
/// // Declare and create a new render-window
/// sf::RenderWindow window(sf::VideoMode(800, 600), "SFML window");
///
/// // Limit the framerate to 60 frames per second (this step is optional)
/// window.setFramerateLimit(60);
///
/// // The main loop - ends as soon as the window is closed
/// while (window.isOpen())
/// {
/// // Event processing
/// sf::Event event;
/// while (window.pollEvent(event))
/// {
/// // Request for closing the window
/// if (event.type == sf::Event::Closed)
/// window.close();
/// }
///
/// // Clear the whole window before rendering a new frame
/// window.clear();
///
/// // Draw some graphical entities
/// window.draw(sprite);
/// window.draw(circle);
/// window.draw(text);
///
/// // End the current frame and display its contents on screen
/// window.display();
/// }
/// \endcode
///
/// Like sf::Window, sf::RenderWindow is still able to render direct
/// OpenGL stuff. It is even possible to mix together OpenGL calls
/// and regular SFML drawing commands.
///
/// \code
/// // Create the render window
/// sf::RenderWindow window(sf::VideoMode(800, 600), "SFML OpenGL");
///
/// // Create a sprite and a text to display
/// sf::Sprite sprite;
/// sf::Text text;
/// ...
///
/// // Perform OpenGL initializations
/// glMatrixMode(GL_PROJECTION);
/// ...
///
/// // Start the rendering loop
/// while (window.isOpen())
/// {
/// // Process events
/// ...
///
/// // Draw a background sprite
/// window.pushGLStates();
/// window.draw(sprite);
/// window.popGLStates();
///
/// // Draw a 3D object using OpenGL
/// glBegin(GL_QUADS);
/// glVertex3f(...);
/// ...
/// glEnd();
///
/// // Draw text on top of the 3D object
/// window.pushGLStates();
/// window.draw(text);
/// window.popGLStates();
///
/// // Finally, display the rendered frame on screen
/// window.display();
/// }
/// \endcode
///
/// \see sf::Window, sf::RenderTarget, sf::RenderTexture, sf::View
///
////////////////////////////////////////////////////////////