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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef INPUT_RECEIVER_H
#define INPUT_RECEIVER_H
#include <deque>
#include <string>
#include "Rendering/GlobalRendering.h"
#include "System/Rectangle.h"
class CInputReceiver
{
protected:
enum Where {
FRONT,
BACK,
MANUAL
};
CInputReceiver(Where w = FRONT);
virtual ~CInputReceiver();
public:
virtual bool KeyPressed(int key, bool isRepeat) { return false; }
virtual bool KeyReleased(int key) { return false; }
virtual bool MousePress(int x, int y, int button) { return false; }
virtual void MouseMove(int x, int y, int dx, int dy, int button) {}
virtual void MouseRelease(int x, int y, int button) {}
virtual bool IsAbove(int x, int y) { return false; }
virtual void Draw() {}
virtual std::string GetTooltip(int x, int y) { return "No tooltip defined"; }
static void CollectGarbage();
static void DrawReceivers();
bool InBox(float x, float y, const TRectangle<float>& box) const;
// transform from mouse X/Y to OpenGL X/Y value in screen pixels
static float MouseX(int x) { return (float(x - globalRendering->viewPosX ) * globalRendering->pixelX); }
static float MouseY(int y) { return (float( globalRendering->viewSizeY - y) * globalRendering->pixelY); }
// transform from mouse X/Y to OpenGL X/Y value in
// orthogonal projection 0-1 left-right/bottom-top
static float MouseMoveX(int x) { return ( float(x) * globalRendering->pixelX); }
static float MouseMoveY(int y) { return (-float(y) * globalRendering->pixelY); }
static float guiAlpha;
static CInputReceiver* GetReceiverAt(int x, int y);
static CInputReceiver*& GetActiveReceiverRef() { return activeReceiver; }
static std::deque<CInputReceiver*>& GetReceivers() {
// This construct fixes order of initialization between different
// compilation units using inputReceivers. (mantis #34)
static std::deque<CInputReceiver*> sInputReceivers;
return sInputReceivers;
}
protected:
static CInputReceiver* activeReceiver;
};
#endif /* INPUT_RECEIVER_H */
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