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///////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/private/textmeasure.h
// Purpose: wxMSW-specific declaration of wxTextMeasure class
// Author: Manuel Martin
// Created: 2012-10-05
// Copyright: (c) 1997-2012 wxWidgets team
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_MSW_PRIVATE_TEXTMEASURE_H_
#define _WX_MSW_PRIVATE_TEXTMEASURE_H_
#include "wx/msw/wrapwin.h"
// ----------------------------------------------------------------------------
// wxTextMeasure for MSW.
// ----------------------------------------------------------------------------
class wxTextMeasure : public wxTextMeasureBase
{
public:
explicit wxTextMeasure(const wxDC *dc, const wxFont *font = NULL)
: wxTextMeasureBase(dc, font)
{
Init();
}
explicit wxTextMeasure(const wxWindow *win, const wxFont *font = NULL)
: wxTextMeasureBase(win, font)
{
Init();
}
protected:
void Init();
virtual void BeginMeasuring() wxOVERRIDE;
virtual void EndMeasuring() wxOVERRIDE;
virtual void DoGetTextExtent(const wxString& string,
wxCoord *width,
wxCoord *height,
wxCoord *descent = NULL,
wxCoord *externalLeading = NULL) wxOVERRIDE;
virtual bool DoGetPartialTextExtents(const wxString& text,
wxArrayInt& widths,
double scaleX) wxOVERRIDE;
// We use either the HDC of the provided wxDC or an HDC created for our
// window.
HDC m_hdc;
// If we change the font in BeginMeasuring(), we restore it to the old one
// in EndMeasuring().
HFONT m_hfontOld;
wxDECLARE_NO_COPY_CLASS(wxTextMeasure);
};
#endif // _WX_MSW_PRIVATE_TEXTMEASURE_H_
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