GUIMessage.h

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#ifndef _CGUIMESSAGE_H_
#define _CGUIMESSAGE_H_

#include "GUIFrame.h"

template<class T>
class CGUIMessage: public CGUIFrame {
public:

        CGUIMessage();
        CGUIMessage(const char* message);
        CGUIMessage(string message);

        virtual ~CGUIMessage();
        void init(string message);

        void setMessage(string message) {
                this->get(0)->setString(message);
        }
        ;

        void callOnConfirm();

        void setCallback(T* _instance, void(T::*_func)(void)) {
                m_instance = _instance;
                m_funcOnConfirm = _func;
        }

        virtual void centered();

protected:
        T* m_instance;
        void (T::*m_funcOnConfirm)(void);

};

template<class T>
CGUIMessage<T>::CGUIMessage() {
        init("No message set.");
}

template<class T>
CGUIMessage<T>::CGUIMessage(string message) {
        init(message);
}

template<class T>
CGUIMessage<T>::CGUIMessage(const char * message) {
        string tmp(message);
        init(tmp);
}

template<class T>
CGUIMessage<T>::~CGUIMessage() {
        // TODO Auto-generated destructor stub
}

template<class T>
void CGUIMessage<T>::init(string message) {

        this->setColor(0, 0, 0, 128);
        this->setDimension(300, 150);
        this->setPosition(100, 100);

        CGUIButton<CGUIMessage>* button = new CGUIButton<CGUIMessage> ;
        button->setString("OK");
        button->setDimension(30, 20);

        button->setCallbackClass(this);
        button->setMouseDownCallback(&CGUIMessage::callOnConfirm);

        CGUILabel* label = new CGUILabel();
        label->setString(message);

        this->addChild(label);
        this->addChild(button);
}

template<class T>
void CGUIMessage<T>::callOnConfirm() {

        if (this->m_instance != NULL && this->m_funcOnConfirm != NULL) {
                (this->m_instance->*this->m_funcOnConfirm)();
        }

}

template<class T>
void CGUIMessage<T>::centered() {
        GLint viewport[4]; // informace o viewportu
        glGetIntegerv(GL_VIEWPORT, viewport); // ziskame informace o VP

        GLfloat positionX = (viewport[2] / 2) - (this->getWidth() / 2);
        GLfloat positionY = (viewport[3] / 2) - (this->getHeight() / 2);

        setPosition(positionX, positionY);

        CGUIElement* curr = NULL;

        for (int i = 1; i < size(); i++) {
                if ((curr = getChild(i)) != NULL) {
                        GLfloat px = positionX + (getWidth() / 2) - curr->getWidth() / 2;
                        curr->setPositionX(px);
                }
        }
}

#endif /* GUIMESSAGE_H_ */

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