uilineedit.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H. Lammertink
 Date:          21/9/2000
________________________________________________________________________

-*/

#include "uibasemod.h"
#include "uiobj.h"
#include "userinputobj.h"

class uiLineEditBody;

mExpClass(uiBase) uiIntValidator
{
public:
                uiIntValidator()
                    : bottom_(-mUdf(int)), top_(mUdf(int))      {}
                uiIntValidator( int bot, int top )
                    : bottom_(bot), top_(top)                   {}

    int         bottom_;
    int         top_;
};


mExpClass(uiBase) uiFloatValidator
{
public:
                uiFloatValidator()
                    : bottom_(-mUdf(float)), top_(mUdf(float))
                    , nrdecimals_(1000), scnotation_(true)      {}
                uiFloatValidator( float bot, float top )
                    : bottom_(bot), top_(top)
                    , nrdecimals_(1000), scnotation_(true)      {}

    float       bottom_;
    float       top_;
    int         nrdecimals_;
    bool        scnotation_;    // If true, ScientificNotation is used
};


mExpClass(uiBase) uiLineEdit : public UserInputObjImpl<const char*>,
                               public uiObject
{
public:
                        //  insted of undefined value, when line edit is empty.
                        uiLineEdit(uiParent*,const char* nm);
                        uiLineEdit(uiParent*,const DataInpSpec&,const char* nm);

    void                setEdited(bool=true);
    bool                isEdited() const;

    void                setCompleter(const BufferStringSet& bs,
                                     bool casesensitive=false);
    void                setPlaceholderText(const uiString&);

    virtual void        setReadOnly(bool=true);
    virtual bool        isReadOnly() const;
    virtual bool        update_(const DataInpSpec&);

    void                setPasswordMode();
    void                setValidator(const uiIntValidator&);
    void                setValidator(const uiFloatValidator&);

    void                setMaxLength(int);
    int                 maxLength() const;
    void                setNrDecimals( int nrdec )      { nrdecimals_ = nrdec; }

    void                home();
    void                end();

    void                backspace();
    void                del();
    void                cursorBackward(bool mark,int steps=1);
    void                cursorForward(bool mark,int steps=1);
    int                 cursorPosition() const;
    void                insert( const char* );

    int                 selectionStart() const;
    const char*         selectedText() const;
    void                setSelection(int start,int length);

    bool                handleLongTabletPress();
    void                popupVirtualKeyboard(int globalx=-1,int globaly=-1);

    Notifier<uiLineEdit> editingFinished;
    Notifier<uiLineEdit> returnPressed;
    Notifier<uiLineEdit> textChanged;
    Notifier<uiLineEdit> selectionChanged;


    virtual const char* getvalue_() const;
    virtual void        setvalue_( const char* );

    void                setToolTip( const uiString& tt )
                        { uiObject::setToolTip(tt); }

protected:

    virtual bool        notifyValueChanging_( const CallBack& cb )
                        { textChanged.notify( cb ); return true;}
    virtual bool        notifyValueChanged_( const CallBack& cb )
                        { editingFinished.notify( cb ); return true;}
    virtual bool        notifyUpdateRequested_( const CallBack& cb )
                        { returnPressed.notify( cb ); return true; }

private:

    uiLineEditBody*     body_;
    uiLineEditBody&     mkbody(uiParent*, const char*);

    mutable BufferString result_;
    int                 nrdecimals_;

};