src/gtk1/dc.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dc.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #include "wx/gtk1/dc.h"
  14
  15 #include <gdk/gdk.h>
  16 #include <gtk/gtk.h>
  17
  18 //-----------------------------------------------------------------------------
  19 // wxGTKDCImpl
  20 //-----------------------------------------------------------------------------
  21
  22 IMPLEMENT_ABSTRACT_CLASS(wxGTKDCImpl, wxDCImpl)
  23
  24 wxGTKDCImpl::wxGTKDCImpl(wxDC *owner)
  25            : wxDCImpl(owner)
  26 {
  27     m_ok = FALSE;
  28
  29     m_logicalFunction = wxCOPY;
  30
  31     m_pen = *wxBLACK_PEN;
  32     m_font = *wxNORMAL_FONT;
  33     m_brush = *wxWHITE_BRUSH;
  34 }
  35
  36 void wxGTKDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
  37 {
  38     m_clipping = TRUE;
  39     m_clipX1 = x;
  40     m_clipY1 = y;
  41     m_clipX2 = x + width;
  42     m_clipY2 = y + height;
  43 }
  44
  45 // ---------------------------------------------------------------------------
  46 // get DC capabilities
  47 // ---------------------------------------------------------------------------
  48
  49 void wxGTKDCImpl::DoGetSizeMM( int* width, int* height ) const
  50 {
  51     int w = 0;
  52     int h = 0;
  53     GetSize( &w, &h );
  54     if (width) *width = int( double(w) / (m_userScaleX*m_mm_to_pix_x) );
  55     if (height) *height = int( double(h) / (m_userScaleY*m_mm_to_pix_y) );
  56 }
  57
  58 // Resolution in pixels per logical inch
  59 wxSize wxGTKDCImpl::GetPPI() const
  60 {
  61     // TODO (should probably be pure virtual)
  62     return wxSize(0, 0);
  63 }
  64