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