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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 <list>
#include <string>
#include "Rendering/GlobalRendering.h"
class CInputReceiver
{
protected:
enum Where {
FRONT,
BACK
};
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 CInputReceiver* GetReceiverAt(int x, int y);
struct ContainerBox {
ContainerBox();
ContainerBox operator+(ContainerBox other) const;
float x1;
float y1;
float x2;
float y2;
};
bool InBox(float x, float y, const ContainerBox& box) const;
void DrawBox(const ContainerBox& b, int how = -1);
/// Transform from mouse X to OpenGL X value in screen pixels.
static float MouseX(int x) {
return float(x - globalRendering->viewPosX) / globalRendering->viewSizeX;
}
/// Transform from mouse Y to OpenGL Y value in screen pixels.
static float MouseY(int y) {
return float(globalRendering->viewSizeY - y) / globalRendering->viewSizeY;
}
/**
* Transform from mouse X to OpenGL X value
* in orthogonal projection 0-1 left-right.
*/
static float MouseMoveX(int x) {
return float(x) / globalRendering->viewSizeX;
}
/**
* Transform from mouse Y to OpenGL Y value
* in orthogonal projection 0-1 bottom-top.
*/
static float MouseMoveY(int y) {
return -float(y) / globalRendering->viewSizeY;
}
static float guiAlpha;
static CInputReceiver*& GetActiveReceiverRef() { return activeReceiver; }
protected:
static CInputReceiver* activeReceiver;
};
std::list<CInputReceiver*>& GetInputReceivers();
#endif /* INPUT_RECEIVER_H */
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