• wxGridCellEditor


    wxGridCellEditor Class Referenceabstract

    #include <wx/grid.h>

    + Inheritance diagram for wxGridCellEditor:

    Detailed Description

    This class is responsible for providing and manipulating the in-place edit controls for the grid.

    Instances of wxGridCellEditor (actually, instances of derived classes since it is an abstract class) can be associated with the cell attributes for individual cells, rows, columns, or even for the entire grid.

     

    Library:  wxAdvanced
    See also
    wxGridCellAutoWrapStringEditorwxGridCellBoolEditorwxGridCellChoiceEditorwxGridCellEnumEditorwxGridCellFloatEditorwxGridCellNumberEditorwxGridCellTextEditor

    Public Member Functions

      wxGridCellEditor ()
      Default constructor. More...
     
    virtual void  BeginEdit (int row, int col, wxGrid *grid)=0
      Fetch the value from the table and prepare the edit control to begin editing. More...
     
    virtual wxGridCellEditor *  Clone () const =0
      Create a new object which is the copy of this one. More...
     
    virtual void  Create (wxWindow *parent, wxWindowID id, wxEvtHandler *evtHandler)=0
      Creates the actual edit control. More...
     
    virtual void  Destroy ()
      Final cleanup. More...
     
    virtual bool  EndEdit (int row, int col, const wxGrid *grid, const wxString &oldval, wxString *newval)=0
      End editing the cell. More...
     
    virtual void  ApplyEdit (int row, int col, wxGrid *grid)=0
      Effectively save the changes in the grid. More...
     
    virtual void  HandleReturn (wxKeyEvent &event)
      Some types of controls on some platforms may need some help with the Return key. More...
     
    bool  IsCreated ()
      Returns true if the edit control has been created. More...
     
    virtual void  PaintBackground (wxDC &dc, const wxRect &rectCell, const wxGridCellAttr &attr)
      Draws the part of the cell not occupied by the control: the base class version just fills it with background colour from the attribute. More...
     
    virtual void  Reset ()=0
      Reset the value in the control back to its starting value. More...
     
    virtual void  SetSize (const wxRect &rect)
      Size and position the edit control. More...
     
    virtual void  Show (bool show, wxGridCellAttr *attr=NULL)
      Show or hide the edit control, use the specified attributes to set colours/fonts for it. More...
     
    virtual void  StartingClick ()
      If the editor is enabled by clicking on the cell, this method will be called. More...
     
    virtual void  StartingKey (wxKeyEvent &event)
      If the editor is enabled by pressing keys on the grid, this will be called to let the editor do something about that first key if desired. More...
     
    virtual wxString  GetValue () const =0
      Returns the value currently in the editor control. More...
     
    wxControl *  GetControl () const
      Get the wxControl used by this editor. More...
     
    void  SetControl (wxControl *control)
      Set the wxControl that will be used by this cell editor for editing the value. More...
     
    - Public Member Functions inherited from wxClientDataContainer
    - Public Member Functions inherited from wxRefCounter

    Protected Member Functions

    virtual  ~wxGridCellEditor ()
      The destructor is private because only DecRef() can delete us. More...
     
    - Protected Member Functions inherited from wxRefCounter

    Constructor & Destructor Documentation

    wxGridCellEditor::wxGridCellEditor (   )  

    Default constructor.

    virtual wxGridCellEditor::~wxGridCellEditor (   )  
    protectedvirtual

    The destructor is private because only DecRef() can delete us.

    Member Function Documentation

    virtual void wxGridCellEditor::ApplyEdit ( int  row,
        int  col,
        wxGrid *  grid 
      )    
    pure virtual

    Effectively save the changes in the grid.

    This function should save the value of the control in the grid. It is called only after EndEdit() returns true.

    virtual void wxGridCellEditor::BeginEdit ( int  row,
        int  col,
        wxGrid *  grid 
      )    
    pure virtual

    Fetch the value from the table and prepare the edit control to begin editing.

    This function should save the original value of the grid cell at the given row and col and show the control allowing the user to change it.

    See also
    EndEdit()
    virtual wxGridCellEditor* wxGridCellEditor::Clone (   ) const
    pure virtual

    Create a new object which is the copy of this one.

    virtual void wxGridCellEditor::Create ( wxWindow *  parent,
        wxWindowID  id,
        wxEvtHandler *  evtHandler 
      )    
    pure virtual

    Creates the actual edit control.

    virtual void wxGridCellEditor::Destroy (   )  
    virtual

    Final cleanup.

    virtual bool wxGridCellEditor::EndEdit ( int  row,
        int  col,
        const wxGrid *  grid,
        const wxString &  oldval,
        wxString *  newval 
      )    
    pure virtual

    End editing the cell.

    This function must check if the current value of the editing control is valid and different from the original value (available as oldval in its string form and possibly saved internally using its real type by BeginEdit()). If it isn't, it just returnsfalse, otherwise it must do the following:

    • Save the new value internally so that ApplyEdit() could apply it.
    • Fill newval (which is never NULL) with the string representation of the new value.
    • Return true

    Notice that it must not modify the grid as the change could still be vetoed.

    If the user-defined wxEVT_GRID_CELL_CHANGING event handler doesn't veto this change, ApplyEdit() will be called next.

    wxControl* wxGridCellEditor::GetControl (   ) const

    Get the wxControl used by this editor.

    virtual wxString wxGridCellEditor::GetValue (   ) const
    pure virtual

    Returns the value currently in the editor control.

    virtual void wxGridCellEditor::HandleReturn ( wxKeyEvent &  event )  
    virtual

    Some types of controls on some platforms may need some help with the Return key.

    bool wxGridCellEditor::IsCreated (   )  

    Returns true if the edit control has been created.

    virtual void wxGridCellEditor::PaintBackground ( wxDC &  dc,
        const wxRect &  rectCell,
        const wxGridCellAttr &  attr 
      )    
    virtual

    Draws the part of the cell not occupied by the control: the base class version just fills it with background colour from the attribute.

    virtual void wxGridCellEditor::Reset (   )  
    pure virtual

    Reset the value in the control back to its starting value.

    void wxGridCellEditor::SetControl ( wxControl *  control )  

    Set the wxControl that will be used by this cell editor for editing the value.

    virtual void wxGridCellEditor::SetSize ( const wxRect &  rect )  
    virtual

    Size and position the edit control.

    virtual void wxGridCellEditor::Show ( bool  show,
        wxGridCellAttr *  attr = NULL 
      )    
    virtual

    Show or hide the edit control, use the specified attributes to set colours/fonts for it.

    virtual void wxGridCellEditor::StartingClick (   )  
    virtual

    If the editor is enabled by clicking on the cell, this method will be called.

    virtual void wxGridCellEditor::StartingKey ( wxKeyEvent &  event )  
    virtual

    If the editor is enabled by pressing keys on the grid, this will be called to let the editor do something about that first key if desired.

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  • 原文地址:https://www.cnblogs.com/whwywzhj/p/6464134.html
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