CTextEdit.hpp

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#ifndef __CTextEdit__
#define __CTextEdit__

#ifdef WIN32
    #pragma warning(disable : 4311) // pointer truncation from 'Exponent::GUI::Controls::CTextEdit *const ' to 'long'
    #pragma warning(disable : 4312) // conversion from 'LONG' to 'Exponent::GUI::Controls::CTextEdit *' of greater size
#endif

#include "CTextLabel.hpp"
#include "../Basics/CColour.hpp"
#include "../Listeners/IActionListener.hpp"

//  ===========================================================================

using Exponent::GUI::Basics::CColour;
using Exponent::GUI::Controls::CTextLabel;
using Exponent::GUI::Listeners::IActionListener;

//  ===========================================================================

namespace Exponent
{
    namespace GUI
    {
        namespace Controls
        {
            class CTextEdit : public CTextLabel, public IActionListener
            {
                EXPONENT_CLASS_DECLARATION;
//  ===========================================================================

            public:

//  ===========================================================================

                enum ETextEditAlignment 
                {
                    #ifdef WIN32
                        e_center = ES_CENTER,
                        e_left   = ES_LEFT,
                        e_right  = ES_RIGHT,
                    #else

                        e_center = 0,       
                        e_left,             
                        e_right             
                    #endif

                };

//  ===========================================================================

                CTextEdit(IControlRoot *root, const long uniqueId, const CRect &area, const CString &text, IActionListener *listener = NULL);

                virtual ~CTextEdit();

//  ===========================================================================

                virtual void handleLeftButtonDown(CMouseEvent &event);

                virtual void handleDoubleClick(CMouseEvent &event);

                virtual void handleActionEvent(const CActionEvent &event);

                virtual void limitText(const bool limitText = false, const long textLimit = 256);

                virtual void setAlignment(const ETextEditAlignment alignment) { m_alignment = alignment; }

                virtual void setEditable(const bool editable = true) { m_isEditable = editable; }

                virtual void setSingleClickEditable(const bool editable = true) { m_singleClickEdit = editable; }

                virtual const CString &getString() const { return m_text; }
                
                #ifdef WIN32

                    LRESULT setEditWindowDrawConditions(HDC drawContext);
                
                #else

                    virtual TXNObject getTxnHandle() const { return m_txnHandle; }
                    
                    virtual void cancelCall(const bool cancel) { m_cancel = cancel; }

                    virtual void drawControl(CGraphics &graphics);
                #endif

//  ===========================================================================

            protected:

//  ===========================================================================

                #ifdef WIN32

                    static LONG WINAPI windowProcTextEdit(HWND windowHandle, UINT message, WPARAM wParam, LPARAM lParam);
                #else

                    static pascal OSStatus windowProcTextEdit(EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void *inUserData);
                #endif

                void launchEdit(CMouseEvent &event);

//  ===========================================================================

                #ifdef WIN32

                    HWND m_editWindowHandle;                
                    static WNDPROC m_lastWinProc;           
                    IControl *m_previouslyLockedControl;    
                    CBrush m_brush;                         
                #else

                    TXNObject m_txnHandle;                  
                    EventHandlerRef m_textEditEventHandler; 
                    bool m_cancel;                          
                #endif

                bool m_limitText;                           
                long m_textLimit;                           
                ETextEditAlignment m_alignment;             
                bool m_isEditable;                          
                bool m_singleClickEdit;                     
            };
        }
    }
}
#endif  // End of CTextEdit.hpp

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