wxWidgets/include/wx/generic/grideditors.h

/////////////////////////////////////////////////////////////////////////////
// Name:        wx/generic/grideditors.h
// Purpose:     wxGridCellEditorEvtHandler and wxGrid editors
// Author:      Michael Bedward (based on code by Julian Smart, Robin Dunn)
// Modified by: Santiago Palacios
// Created:     1/08/1999
// RCS-ID:      $Id$
// Copyright:   (c) Michael Bedward
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_GENERIC_GRID_EDITORS_H_
#define _WX_GENERIC_GRID_EDITORS_H_

#include "wx/defs.h"

#if wxUSE_GRID

class wxGridCellEditorEvtHandler : public wxEvtHandler
{
public:
    wxGridCellEditorEvtHandler(wxGrid* grid, wxGridCellEditor* editor)
        : m_grid(grid),
          m_editor(editor),
          m_inSetFocus(false)
    {
    }

    void OnKillFocus(wxFocusEvent& event);
    void OnKeyDown(wxKeyEvent& event);
    void OnChar(wxKeyEvent& event);

    void SetInSetFocus(bool inSetFocus) { m_inSetFocus = inSetFocus; }

private:
    wxGrid             *m_grid;
    wxGridCellEditor   *m_editor;

    // Work around the fact that a focus kill event can be sent to
    // a combobox within a set focus event.
    bool                m_inSetFocus;

    DECLARE_EVENT_TABLE()
    DECLARE_DYNAMIC_CLASS(wxGridCellEditorEvtHandler)
    wxDECLARE_NO_COPY_CLASS(wxGridCellEditorEvtHandler);
};


#if wxUSE_TEXTCTRL

// the editor for string/text data
class WXDLLIMPEXP_ADV wxGridCellTextEditor : public wxGridCellEditor
{
public:
    wxGridCellTextEditor();

    virtual void Create(wxWindow* parent,
                        wxWindowID id,
                        wxEvtHandler* evtHandler);
    virtual void SetSize(const wxRect& rect);

    virtual void PaintBackground(const wxRect& rectCell, wxGridCellAttr *attr);

    virtual bool IsAcceptedKey(wxKeyEvent& event);
    virtual void BeginEdit(int row, int col, wxGrid* grid);
    virtual bool EndEdit(const wxString& oldval, wxString *newval);
    virtual void ApplyEdit(int row, int col, wxGrid* grid);

    virtual void Reset();
    virtual void StartingKey(wxKeyEvent& event);
    virtual void HandleReturn(wxKeyEvent& event);

    // parameters string format is "max_width"
    virtual void SetParameters(const wxString& params);

    virtual wxGridCellEditor *Clone() const
        { return new wxGridCellTextEditor; }

    // added GetValue so we can get the value which is in the control
    virtual wxString GetValue() const;

protected:
    wxTextCtrl *Text() const { return (wxTextCtrl *)m_control; }

    // parts of our virtual functions reused by the derived classes
    void DoCreate(wxWindow* parent, wxWindowID id, wxEvtHandler* evtHandler,
                  long style = 0);
    void DoBeginEdit(const wxString& startValue);
    void DoReset(const wxString& startValue);

private:
    size_t   m_maxChars;        // max number of chars allowed
    wxString m_value;

    wxDECLARE_NO_COPY_CLASS(wxGridCellTextEditor);
};

// the editor for numeric (long) data
class WXDLLIMPEXP_ADV wxGridCellNumberEditor : public wxGridCellTextEditor
{
public:
    // allows to specify the range - if min == max == -1, no range checking is
    // done
    wxGridCellNumberEditor(int min = -1, int max = -1);

    virtual void Create(wxWindow* parent,
                        wxWindowID id,
                        wxEvtHandler* evtHandler);

    virtual bool IsAcceptedKey(wxKeyEvent& event);
    virtual void BeginEdit(int row, int col, wxGrid* grid);
    virtual bool EndEdit(const wxString& oldval, wxString *newval);
    virtual void ApplyEdit(int row, int col, wxGrid* grid);

    virtual void Reset();
    virtual void StartingKey(wxKeyEvent& event);

    // parameters string format is "min,max"
    virtual void SetParameters(const wxString& params);

    virtual wxGridCellEditor *Clone() const
        { return new wxGridCellNumberEditor(m_min, m_max); }

    // added GetValue so we can get the value which is in the control
    virtual wxString GetValue() const;

protected:
#if wxUSE_SPINCTRL
    wxSpinCtrl *Spin() const { return (wxSpinCtrl *)m_control; }
#endif

    // if HasRange(), we use wxSpinCtrl - otherwise wxTextCtrl
    bool HasRange() const
    {
#if wxUSE_SPINCTRL
        return m_min != m_max;
#else
        return false;
#endif
    }

    // string representation of our value
    wxString GetString() const
        { return wxString::Format(_T("%ld"), m_value); }

private:
    int m_min,
        m_max;

    long m_value;

    wxDECLARE_NO_COPY_CLASS(wxGridCellNumberEditor);
};

// the editor for floating point numbers (double) data
class WXDLLIMPEXP_ADV wxGridCellFloatEditor : public wxGridCellTextEditor
{
public:
    wxGridCellFloatEditor(int width = -1, int precision = -1);

    virtual void Create(wxWindow* parent,
                        wxWindowID id,
                        wxEvtHandler* evtHandler);

    virtual bool IsAcceptedKey(wxKeyEvent& event);
    virtual void BeginEdit(int row, int col, wxGrid* grid);
    virtual bool EndEdit(const wxString& oldval, wxString *newval);
    virtual void ApplyEdit(int row, int col, wxGrid* grid);

    virtual void Reset();
    virtual void StartingKey(wxKeyEvent& event);

    virtual wxGridCellEditor *Clone() const
        { return new wxGridCellFloatEditor(m_width, m_precision); }

    // parameters string format is "width,precision"
    virtual void SetParameters(const wxString& params);

protected:
    // string representation of our value
    wxString GetString() const;

private:
    int m_width,
        m_precision;
    double m_value;

    wxDECLARE_NO_COPY_CLASS(wxGridCellFloatEditor);
};

#endif // wxUSE_TEXTCTRL

#if wxUSE_CHECKBOX

// the editor for boolean data
class WXDLLIMPEXP_ADV wxGridCellBoolEditor : public wxGridCellEditor
{
public:
    wxGridCellBoolEditor() { }

    virtual void Create(wxWindow* parent,
                        wxWindowID id,
                        wxEvtHandler* evtHandler);

    virtual void SetSize(const wxRect& rect);
    virtual void Show(bool show, wxGridCellAttr *attr = NULL);

    virtual bool IsAcceptedKey(wxKeyEvent& event);
    virtual void BeginEdit(int row, int col, wxGrid* grid);
    virtual bool EndEdit(const wxString& oldval, wxString *newval);
    virtual void ApplyEdit(int row, int col, wxGrid* grid);

    virtual void Reset();
    virtual void StartingClick();
    virtual void StartingKey(wxKeyEvent& event);

    virtual wxGridCellEditor *Clone() const
        { return new wxGridCellBoolEditor; }

    // added GetValue so we can get the value which is in the control, see
    // also UseStringValues()
    virtual wxString GetValue() const;

    // set the string values returned by GetValue() for the true and false
    // states, respectively
    static void UseStringValues(const wxString& valueTrue = _T("1"),
                                const wxString& valueFalse = wxEmptyString);

    // return true if the given string is equal to the string representation of
    // true value which we currently use
    static bool IsTrueValue(const wxString& value);

protected:
    wxCheckBox *CBox() const { return (wxCheckBox *)m_control; }

private:
    bool m_value;

    static wxString ms_stringValues[2];

    wxDECLARE_NO_COPY_CLASS(wxGridCellBoolEditor);
};

#endif // wxUSE_CHECKBOX

#if wxUSE_COMBOBOX

// the editor for string data allowing to choose from the list of strings
class WXDLLIMPEXP_ADV wxGridCellChoiceEditor : public wxGridCellEditor
{
public:
    // if !allowOthers, user can't type a string not in choices array
    wxGridCellChoiceEditor(size_t count = 0,
                           const wxString choices[] = NULL,
                           bool allowOthers = false);
    wxGridCellChoiceEditor(const wxArrayString& choices,
                           bool allowOthers = false);

    virtual void Create(wxWindow* parent,
                        wxWindowID id,
                        wxEvtHandler* evtHandler);

    virtual void PaintBackground(const wxRect& rectCell, wxGridCellAttr *attr);

    virtual void BeginEdit(int row, int col, wxGrid* grid);
    virtual bool EndEdit(const wxString& oldval, wxString *newval);
    virtual void ApplyEdit(int row, int col, wxGrid* grid);

    virtual void Reset();

    // parameters string format is "item1[,item2[...,itemN]]"
    virtual void SetParameters(const wxString& params);

    virtual wxGridCellEditor *Clone() const;

    // added GetValue so we can get the value which is in the control
    virtual wxString GetValue() const;

protected:
    wxComboBox *Combo() const { return (wxComboBox *)m_control; }

    wxString        m_value;
    wxArrayString   m_choices;
    bool            m_allowOthers;

    wxDECLARE_NO_COPY_CLASS(wxGridCellChoiceEditor);
};

#endif // wxUSE_COMBOBOX

#if wxUSE_COMBOBOX

class WXDLLIMPEXP_ADV wxGridCellEnumEditor : public wxGridCellChoiceEditor
{
public:
    wxGridCellEnumEditor( const wxString& choices = wxEmptyString );
    virtual ~wxGridCellEnumEditor() {}

    virtual wxGridCellEditor*  Clone() const;

    virtual void BeginEdit(int row, int col, wxGrid* grid);
    virtual bool EndEdit(const wxString& oldval, wxString *newval);
    virtual void ApplyEdit(int row, int col, wxGrid* grid);

private:
    long m_index;

    wxDECLARE_NO_COPY_CLASS(wxGridCellEnumEditor);
};

#endif // wxUSE_COMBOBOX

class WXDLLIMPEXP_ADV wxGridCellAutoWrapStringEditor : public wxGridCellTextEditor
{
public:
    wxGridCellAutoWrapStringEditor() : wxGridCellTextEditor() { }
    virtual void Create(wxWindow* parent,
                        wxWindowID id,
                        wxEvtHandler* evtHandler);

    virtual wxGridCellEditor *Clone() const
        { return new wxGridCellAutoWrapStringEditor; }

    wxDECLARE_NO_COPY_CLASS(wxGridCellAutoWrapStringEditor);
};

#endif // wxUSE_GRID
#endif // _WX_GENERIC_GRID_EDITORS_H_