GUIBaseCheckBox.h

/*
* Copyright (C) TES Electronic Solutions GmbH,
* All Rights Reserved.
* Contact: info@guiliani.de
*
* This file is part of the Guiliani HMI framework
* for the development of graphical user interfaces on embedded systems.
*/
 
#ifndef GUIBASECHECKBOX__H_
#define GUIBASECHECKBOX__H_
 
#include "GUIBaseButton.h"
 
 
class CGUIBaseCheckBox
    : public CGUIBaseButton
{
public:
 
    enum CheckBoxLayout_t
    {
        MANUAL_LAYOUT,              
        ICON_LEFT_AUTOSCALE,        
        ICON_RIGHT_AUTOSCALE,       
        ICON_LEFT_CENTERED,         
        ICON_RIGHT_CENTERED,        
        ICON_FILL_OBJECT            
    };
 
 
    CGUIBaseCheckBox();
 
    CGUIBaseCheckBox(
        CGUICompositeObject* const pkParent,
        const eC_Value& vX,
        const eC_Value& vY,
        const eC_Value& vWidth,
        const eC_Value& vHeight,
        const eC_Bool &bSelected = false,
        const ObjectHandle_t &eID = NO_HANDLE);
 
    CGUIBaseCheckBox(
        CGUICompositeObject* const pkParent,
        const CGUIRect &kRect,
        const eC_Bool &bSelected = false,
        const ObjectHandle_t &eID = NO_HANDLE);
 
    CGUIBaseCheckBox(const CGUIBaseCheckBox& kSource);
 
    CGUIBaseCheckBox& operator=(const CGUIBaseCheckBox& kSource);
 
    virtual ~CGUIBaseCheckBox();
 
    virtual eC_Bool SetValue(const CGUIValue& rkValue)
    {
        SetSelected(rkValue.ToBool());
        CGUIObject::SetValue(rkValue);
        return true;
    }
 
    virtual eC_Bool DoClick(const eC_Value& vAbsX, const eC_Value& vAbsY);
 
    virtual eC_Bool DoDraw();
 
    virtual void SetSelected(eC_Bool bSelect)
    {
        if (m_bIsSelected != bSelect)
        {
            m_bIsSelected = bSelect;
            InvalidateArea();
            m_kSelectionSubject.NotifyObservers(CGUIValue(m_bIsSelected), this);
            NotifyValueObservers(m_bIsSelected);
        }
    }
 
    virtual eC_Bool IsSelected() const
    {
        return m_bIsSelected;
    }
 
    void AddSelectionObserver(CGUIObserver* pObserver);
 
    void RemoveSelectionObserver(CGUIObserver* pObserver);
 
#ifdef GUILIANI_STREAM_GUI
    virtual void ReadFromStream();
#endif
 
#ifdef GUILIANI_WRITE_GUI
    virtual void WriteToStream(const eC_Bool bWriteClassID = false);
#endif
 
    virtual CGUIRect CalculateIconRect();
 
    virtual CGUIRect CalculateLabelRect(const CGUIRect &kIconRect);
 
    void SetCheckBoxLayout(const CheckBoxLayout_t eLayout);
 
    void SetIconRect(const CGUIRect& kRect);
 
protected:
    void Init(const eC_Bool &bSelected);
 
    CheckBoxLayout_t  m_eCheckBoxLayout;
 
    CGUIRect    m_kIconRelRect;
 
private:
    void CopyAttributes(const CGUIBaseCheckBox& kSource);
 
    eC_Bool m_bIsSelected;
 
    CGUISubject m_kSelectionSubject;
};
 
#endif