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/*
* IScreenHandler.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
VCMI_LIB_NAMESPACE_BEGIN
class Point;
class Rect;
VCMI_LIB_NAMESPACE_END
class IScreenHandler
{
public:
virtual ~IScreenHandler() = default;
/// Updates window state after fullscreen state has been changed in settings
virtual void onScreenResize() = 0;
/// De-initializes window state
virtual void close() = 0;
/// Fills screen with black color, erasing any existing content
virtual void clearScreen() = 0;
/// Returns list of resolutions supported by current screen
virtual std::vector<Point> getSupportedResolutions() const = 0;
/// Returns <min, max> range of possible values for screen scaling percentage
virtual std::tuple<int, int> getSupportedScalingRange() const = 0;
/// Converts provided rect from logical coordinates into coordinates within window, accounting for scaling and viewport
virtual Rect convertLogicalPointsToWindow(const Rect & input) const = 0;
/// Dimensions of render output
virtual Point getRenderResolution() const = 0;
/// Dimensions of logical output. Can be different if scaling is used
virtual Point getLogicalResolution() const = 0;
virtual int getInterfaceScalingPercentage() const = 0;
virtual int getScalingFactor() const = 0;
/// Window has focus
virtual bool hasFocus() = 0;
};
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