projects / wxWidgets.git / blame
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| 8cd79b7a VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/gtk/private/textmeasure.h | |
| 3 | // Purpose: wxGTK-specific declaration of wxTextMeasure class | |
| 4 | // Author: Manuel Martin | |
| c70155b8 VZ |
5 | // Created: 2012-10-05 |
| 6 | // RCS-ID: $Id: | |
| 8cd79b7a VZ |
7 | // Copyright: (c) 1997-2012 wxWidgets team |
| 8 | // Licence: wxWindows licence | |
| 9 | /////////////////////////////////////////////////////////////////////////////// | |
| 10 | ||
| 11 | #ifndef _WX_GTK_PRIVATE_TEXTMEASURE_H_ | |
| 12 | #define _WX_GTK_PRIVATE_TEXTMEASURE_H_ | |
| 13 | ||
| 14 | // ---------------------------------------------------------------------------- | |
| 15 | // wxTextMeasure | |
| 16 | // ---------------------------------------------------------------------------- | |
| 17 | ||
| 18 | class WXDLLIMPEXP_FWD_CORE wxWindowDCImpl; | |
| 19 | ||
| 20 | class wxTextMeasure : public wxTextMeasureBase | |
| 21 | { | |
| 22 | public: | |
| c94c3a77 | 23 | wxEXPLICIT wxTextMeasure(const wxDC *dc, const wxFont *font = NULL) |
| 8cd79b7a VZ |
24 | : wxTextMeasureBase(dc, font) |
| 25 | { | |
| 26 | Init(); | |
| 27 | } | |
| 28 | ||
| c94c3a77 | 29 | wxEXPLICIT wxTextMeasure(const wxWindow *win, const wxFont *font = NULL) |
| 8cd79b7a VZ |
30 | : wxTextMeasureBase(win, font) |
| 31 | { | |
| 32 | Init(); | |
| 33 | } | |
| 34 | ||
| 35 | protected: | |
| 36 | // Common part of both ctors. | |
| 37 | void Init(); | |
| 38 | ||
| 39 | virtual void BeginMeasuring(); | |
| 40 | virtual void EndMeasuring(); | |
| 41 | ||
| 42 | virtual void DoGetTextExtent(const wxString& string, | |
| 43 | wxCoord *width, | |
| 44 | wxCoord *height, | |
| 45 | wxCoord *descent = NULL, | |
| 46 | wxCoord *externalLeading = NULL); | |
| 47 | ||
| 48 | virtual bool DoGetPartialTextExtents(const wxString& text, | |
| 49 | wxArrayInt& widths, | |
| 50 | double scaleX); | |
| 51 | ||
| 8cd79b7a VZ |
52 | // This class is only used for DC text measuring with GTK+ 2 as GTK+ 3 uses |
| 53 | // Cairo and not Pango for this. However it's still used even with GTK+ 3 | |
| 54 | // for window text measuring, so the context and the layout are still | |
| 55 | // needed. | |
| 56 | #ifndef __WXGTK3__ | |
| 57 | wxWindowDCImpl *m_wdc; | |
| 58 | #endif // GTK+ < 3 | |
| 59 | PangoContext *m_context; | |
| 60 | PangoLayout *m_layout; | |
| 61 | ||
| 62 | wxDECLARE_NO_COPY_CLASS(wxTextMeasure); | |
| 63 | }; | |
| 64 | ||
| 65 | #endif // _WX_GTK_PRIVATE_TEXTMEASURE_H_ |