unit_binder.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2014-2015 CERN
 * Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
 * Author: Maciej Suminski <maciej.suminski@cern.ch>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#ifndef __UNIT_BINDER_H_
#define __UNIT_BINDER_H_

#include <eda_units.h>
#include <base_units.h>
#include <eda_item.h>
#include <origin_transforms.h>
#include <libeval/numeric_evaluator.h>


class wxTextEntry;
class wxSpinButton;
class wxStaticText;


class UNIT_BINDER : public wxEvtHandler
{
public:

    UNIT_BINDER( EDA_DRAW_FRAME* aParent,
                 wxStaticText* aLabel, wxWindow* aValueCtrl, wxStaticText* aUnitLabel,
                 bool aAllowEval = true );

    ~UNIT_BINDER() override;

    virtual void SetUnits( EDA_UNITS aUnits );

    virtual void SetPrecision( int aLength );

    void SetDataType( EDA_DATA_TYPE aDataType );

    virtual void SetValue( int aValue );

    void SetValue( wxString aValue );

    virtual void SetDoubleValue( double aValue );

    virtual void ChangeValue( int aValue );

    void ChangeValue( const wxString& aValue );

    virtual long long int GetValue();

    virtual double GetDoubleValue();

    bool IsIndeterminate() const;

    wxString GetOriginalText() const;

    virtual bool Validate( double aMin, double aMax, EDA_UNITS aUnits = EDA_UNITS::UNSCALED );

    void SetLabel( const wxString& aLabel );

    void Enable( bool aEnable );

    void Show( bool aShow, bool aResize = false );

    ORIGIN_TRANSFORMS::COORD_TYPES_T GetCoordType() const
    {
        return m_coordType;
    }

    void SetCoordType( ORIGIN_TRANSFORMS::COORD_TYPES_T aCoordType )
    {
        m_coordType = aCoordType;
    }

protected:

    void onSetFocus( wxFocusEvent& aEvent );
    void onKillFocus( wxFocusEvent& aEvent );
    void delayedFocusHandler( wxCommandEvent& aEvent );

    void onUnitsChanged( wxCommandEvent& aEvent );

    double setPrecision( double aValue, bool aValueUsesUserUnits );

    EDA_DRAW_FRAME*   m_frame;

    wxStaticText*     m_label;
    wxWindow*         m_valueCtrl;
    wxStaticText*     m_unitLabel;  // Can be nullptr

    EDA_UNITS         m_units;
    EDA_DATA_TYPE     m_dataType;
    int               m_precision;     // 0 to 6

    wxString          m_errorMessage;

    NUMERIC_EVALUATOR m_eval;
    bool              m_allowEval;
    bool              m_needsEval;

    long              m_selStart;
    long              m_selEnd;

    ORIGIN_TRANSFORMS&               m_originTransforms;

    ORIGIN_TRANSFORMS::COORD_TYPES_T m_coordType;
};

#endif /* __UNIT_BINDER_H_ */