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///////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/headerctrl.h
// Purpose: wxMSW native wxHeaderCtrl
// Author: Vadim Zeitlin
// Created: 2008-12-01
// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_MSW_HEADERCTRL_H_
#define _WX_MSW_HEADERCTRL_H_
class WXDLLIMPEXP_FWD_CORE wxImageList;
// ----------------------------------------------------------------------------
// wxHeaderCtrl
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxHeaderCtrl : public wxHeaderCtrlBase
{
public:
wxHeaderCtrl()
{
Init();
}
wxHeaderCtrl(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxHD_DEFAULT_STYLE,
const wxString& name = wxHeaderCtrlNameStr)
{
Init();
Create(parent, id, pos, size, style, name);
}
bool Create(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxHD_DEFAULT_STYLE,
const wxString& name = wxHeaderCtrlNameStr);
virtual ~wxHeaderCtrl();
protected:
// override wxWindow methods which must be implemented by a new control
virtual wxSize DoGetBestSize() const;
virtual void DoSetSize(int x, int y,
int width, int height,
int sizeFlags = wxSIZE_AUTO);
private:
// implement base class pure virtuals
virtual void DoSetCount(unsigned int count);
virtual unsigned int DoGetCount() const;
virtual void DoUpdate(unsigned int idx);
virtual void DoScrollHorz(int dx);
virtual void DoSetColumnsOrder(const wxArrayInt& order);
virtual wxArrayInt DoGetColumnsOrder() const;
// override MSW-specific methods needed for new control
virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const;
virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
// common part of all ctors
void Init();
// wrapper around Header_InsertItem(): insert the item using information
// from the given column at the given index
void DoInsertItem(const wxHeaderColumn& col, unsigned int idx);
// get the number of currently visible items: this is also the total number
// of items contained in the native control
int GetShownColumnsCount() const;
// due to the discrepancy for the hidden columns which we know about but
// the native control does not, there can be a difference between the
// column indices we use and the ones used by the native control; these
// functions translate between them
//
// notice that MSWToNativeIdx() shouldn't be called for hidden columns and
// MSWFromNativeIdx() always returns an index of a visible column
int MSWToNativeIdx(int idx);
int MSWFromNativeIdx(int item);
// this is the same as above but for order, not index
int MSWToNativeOrder(int order);
int MSWFromNativeOrder(int order);
// get the event type corresponding to a click or double click event
// (depending on dblclk value) with the specified (using MSW convention)
// mouse button
wxEventType GetClickEventType(bool dblclk, int button);
// the number of columns in the control, including the hidden ones (not
// taken into account by the native control, see comment in DoGetCount())
unsigned int m_numColumns;
// this is a lookup table allowing us to check whether the column with the
// given index is currently shown in the native control, in which case the
// value of this array element with this index is 0, or hidden
//
// notice that this may be different from GetColumn(idx).IsHidden() and in
// fact we need this array precisely because it will be different from it
// in DoUpdate() when the column hidden flag gets toggled and we need it to
// handle this transition correctly
wxArrayInt m_isHidden;
// the order of our columns: this array contains the index of the column
// shown at the position n as the n-th element
//
// this is necessary only to handle the hidden columns: the native control
// doesn't know about them and so we can't use Header_GetOrderArray()
wxArrayInt m_colIndices;
// the image list: initially NULL, created on demand
wxImageList *m_imageList;
// the offset of the window used to emulate scrolling it
int m_scrollOffset;
// actual column we are dragging or -1 if not dragging anything
int m_colBeingDragged;
wxDECLARE_NO_COPY_CLASS(wxHeaderCtrl);
};
#endif // _WX_MSW_HEADERCTRL_H_
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