src/x11/dc.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/x11/dc.cpp
   3 // Purpose:     wxDC class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // for compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/dc.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/dcmemory.h"
  19 #endif
  20
  21 IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
  22
  23 //-----------------------------------------------------------------------------
  24 // wxDC
  25 //-----------------------------------------------------------------------------
  26
  27 wxDC::wxDC()
  28 {
  29     m_ok = false;
  30
  31     m_pen = *wxBLACK_PEN;
  32     m_font = *wxNORMAL_FONT;
  33     m_brush = *wxWHITE_BRUSH;
  34
  35     m_backgroundMode = wxTRANSPARENT;
  36 }
  37
  38 void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
  39 {
  40     m_clipping = true;
  41     m_clipX1 = x;
  42     m_clipY1 = y;
  43     m_clipX2 = x + width;
  44     m_clipY2 = y + height;
  45 }
  46
  47 void wxDC::DoGetSizeMM( int* width, int* height ) const
  48 {
  49     int w, h;
  50     GetSize( &w, &h );
  51
  52     if ( width )
  53         *width = int( double(w) / (m_scaleX*m_mm_to_pix_x) );
  54     if ( height )
  55         *height = int( double(h) / (m_scaleY*m_mm_to_pix_y) );
  56 }
  57
  58 // Resolution in pixels per logical inch
  59 wxSize wxDC::GetPPI() const
  60 {
  61     // TODO (should probably be pure virtual)
  62     return wxSize(0, 0);
  63 }