src/generic/textmeasure.cpp

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