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75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/*
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* WindowHandler.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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struct SDL_Texture;
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struct SDL_Window;
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struct SDL_Renderer;
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struct SDL_Surface;
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#include "../../lib/Point.h"
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enum class EWindowMode
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{
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// game runs in a window that covers part of the screen
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WINDOWED,
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// game runs in a 'window' that always covers entire screen and uses unmodified desktop resolution
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// The only mode that is available on mobile devices
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FULLSCREEN_WINDOWED,
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// game runs in a fullscreen mode with resolution selected by player
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FULLSCREEN_TRUE
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};
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/// This class is responsible for management of game window and its main rendering surface
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class WindowHandler
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{
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/// Dimensions of target surfaces/textures, this value is what game logic views as screen size
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Point getPreferredLogicalResolution() const;
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/// Dimensions of output window, if different from logicalResolution SDL will perform scaling
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/// This value is what player views as window size
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Point getPreferredRenderingResolution() const;
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EWindowMode getPreferredWindowMode() const;
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/// Returns index of display on which window should be created
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int getPreferredDisplayIndex() const;
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/// Returns index of rendering driver preferred by player or -1 if no preference
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int getPreferredRenderingDriver() const;
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/// Creates SDL window with specified parameters
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SDL_Window * createWindowImpl(Point dimensions, int displayIndex, int flags, bool center);
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/// Creates SDL window using OS-specific settings & user-specific config
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SDL_Window * createWindow();
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void initializeRenderer();
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void initializeScreen();
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void updateFullscreenState();
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bool recreateWindow();
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void destroyScreen();
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void destroyWindow();
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void validateSettings();
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public:
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/// Creates and initializes screen, window and SDL state
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WindowHandler();
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/// Updates and potentially recreates target screen to match selected fullscreen status
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void onFullscreenChanged();
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/// De-initializes and destroys screen, window and SDL state
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void close();
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};
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