fsCRollOverGui.h

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/********************************************************************
*
*       Created:        15/7/2014   09:06
*
*       File:           fsCRollOverGui.h
*
*       Author:         Martin P King
*       
*       Purpose:        Roll over that renders when the mouse is over any
*                               of the registered entities
*
*********************************************************************/
 
#ifndef fsCRollOverGuihdr
#define fsCRollOverGuihdr
 
#include <fsCore/src/fsCUniqueId.h>
 
#include <fsAppCore/src/components/gui/fsIMessageListenerGuiComponent.h>
#include <fsCore/fsPoint.h>
 
class fsITransformationComponent;
 
class fsCRollOverGui : public fsIMessageListenerGuiComponent
{
        friend class fsCComponentFactory;
 
public:
 
        static const fsCUniqueId mTypeId;
 
        struct fsSRollOver
        {
                fsSRollOver(const fsStr& pTxt, fsCEntity* const pEnt) :
                        mTxt(pTxt),
                        mEnt(pEnt)
                {
                }
 
                fsStr mTxt;
                fsCEntity* mEnt;
        };
 
        static const fsCUniqueId mDeactivateMsg;
 
        void candidatesDeregister();
        void candidatesRegister(std::vector<fsSRollOver>& pCandidates);
        void candidateRegister(const fsSRollOver& pCandidate);
        void candidateDeRegister(fsCEntity* pEnt);
 
 
        void listenersRegisterDo() override;
        void listenersDeregisterDo() override;
        fsBool messageProcessDo(const fsCUniqueId& pMessageType,
                                const fsIMessageDispatcher::sMessageParameters& pParam) override;
 
protected:
 
        void initialiseFromVariableTableDo(const fsCVariableTable& pVars) override;
 
        static fsIComponent* create(fsCEntity* pParent);
 
        fsCRollOverGui(fsCEntity* pParent);
        virtual ~fsCRollOverGui();
 
 
        void posSet(const fsPoint& pMousePos, fsCEntity* pEnt);
        void textSet(const fsSRollOver& pRollOver);
        fsBool newTarget(const fsSRollOver& pRollOver) const;
 
        virtual void rollOverCandidatesCheck(const fsPoint& pPos);
 
        std::vector<fsSRollOver> mRollOvers;
 
private:
 
        fsITransformationComponent* transformationChildComponentGet() const;
        void close();
 
 
        void positionCorrectForScreenBoundry(fsPoint& pPos, fsS32 pTargetH, fsPoint pRollOverGuiSize);
 
        void maxStrWidthCalculate(const fsCVariableTable& pVars);
 
        fsS32 mStrWidthInPixels;
        fsPoint mFixedPos;
};
 
#endif