src/generic/textmeasure.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/textmeasure.cpp
   3 // Purpose:
   4 // Author:      Vadim Zeitlin
   5 // Created:     2012-10-17
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2012 Vadim Zeitlin <vadim@wxwidgets.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // for compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #ifndef WX_PRECOMP
  27     #include "wx/window.h"
  28     #include "wx/dc.h"
  29 #endif //WX_PRECOMP
  30
  31 #include "wx/private/textmeasure.h"
  32
  33 #if wxUSE_GENERIC_TEXTMEASURE
  34
  35 // ============================================================================
  36 // wxTextMeasure generic implementation
  37 // ============================================================================
  38
  39 // We assume that the ports not providing platform-specific wxTextMeasure
  40 // implementation implement the corresponding functions in their wxDC and
  41 // wxWindow classes, so forward back to them instead of using wxTextMeasure
  42 // from there, as usual.
  43 void wxTextMeasure::DoGetTextExtent(const wxString& string,
  44                                     wxCoord *width,
  45                                     wxCoord *height,
  46                                     wxCoord *descent,
  47                                     wxCoord *externalLeading)
  48 {
  49     if ( m_dc )
  50     {
  51         m_dc->GetTextExtent(string, width, height,
  52                             descent, externalLeading, m_font);
  53     }
  54     else if ( m_win )
  55     {
  56         m_win->GetTextExtent(string, width, height,
  57                              descent, externalLeading, m_font);
  58     }
  59     //else: we already asserted in the ctor, don't do it any more
  60 }
  61
  62 bool wxTextMeasure::DoGetPartialTextExtents(const wxString& text,
  63                                             wxArrayInt& widths,
  64                                             double scaleX)
  65 {
  66     return wxTextMeasureBase::DoGetPartialTextExtents(text, widths, scaleX);
  67 }
  68
  69 #endif // wxUSE_GENERIC_TEXTMEASURE