/////////////////////////////////////////////////////////////////////////////
-// Name: dc.cpp
+// Name: src/gtk/dc.cpp
// Purpose:
// Author: Robert Roebling
// RCS-ID: $Id$
-// Copyright: (c) 1998 Robert Roebling, Markus Holzem
+// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
-#ifdef __GNUG__
- #pragma implementation "dc.h"
-#endif
-
-#include "wx/dc.h"
-
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include "wx/gtk/dc.h"
//-----------------------------------------------------------------------------
-// constants
+// wxGTKDCImpl
//-----------------------------------------------------------------------------
-#define mm2inches 0.0393700787402
-#define inches2mm 25.4
-#define mm2twips 56.6929133859
-#define twips2mm 0.0176388888889
-#define mm2pt 2.83464566929
-#define pt2mm 0.352777777778
-
-//-----------------------------------------------------------------------------
-// wxDC
-//-----------------------------------------------------------------------------
+IMPLEMENT_ABSTRACT_CLASS(wxGTKDCImpl, wxDCImpl)
-IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase)
-
-wxDC::wxDC()
+wxGTKDCImpl::wxGTKDCImpl( wxDC *owner )
+ : wxDCImpl( owner )
{
m_ok = FALSE;
- m_mm_to_pix_x = 1.0;
- m_mm_to_pix_y = 1.0;
-
- m_needComputeScaleX = FALSE; /* not used yet */
- m_needComputeScaleY = FALSE; /* not used yet */
-
- m_logicalFunction = wxCOPY;
-
m_pen = *wxBLACK_PEN;
m_font = *wxNORMAL_FONT;
- m_brush = *wxTRANSPARENT_BRUSH;
+ m_brush = *wxWHITE_BRUSH;
}
-void wxDC::DoSetClippingRegion( long x, long y, long width, long height )
+wxGTKDCImpl::~wxGTKDCImpl()
+{
+}
+
+void wxGTKDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
m_clipping = TRUE;
m_clipX1 = x;
m_clipY2 = y + height;
}
-void wxDC::DestroyClippingRegion()
-{
- m_clipping = FALSE;
-}
-
// ---------------------------------------------------------------------------
// get DC capabilities
// ---------------------------------------------------------------------------
-void wxDC::DoGetSize( int* width, int* height ) const
-{
- if (width) *width = m_maxX-m_minX;
- if (height) *height = m_maxY-m_minY;
-}
-
-void wxDC::DoGetSizeMM( int* width, int* height ) const
+void wxGTKDCImpl::DoGetSizeMM( int* width, int* height ) const
{
int w = 0;
int h = 0;
- GetSize( &w, &h );
- if (width) *width = int( double(w) / (m_scaleX*m_mm_to_pix_x) );
- if (height) *height = int( double(h) / (m_scaleY*m_mm_to_pix_y) );
+ GetOwner()->GetSize( &w, &h );
+ if (width) *width = int( double(w) / (m_userScaleX*m_mm_to_pix_x) );
+ if (height) *height = int( double(h) / (m_userScaleY*m_mm_to_pix_y) );
}
// Resolution in pixels per logical inch
-wxSize wxDC::GetPPI() const
+wxSize wxGTKDCImpl::GetPPI() const
{
// TODO (should probably be pure virtual)
return wxSize(0, 0);
}
-
-// ---------------------------------------------------------------------------
-// set various DC parameters
-// ---------------------------------------------------------------------------
-
-void wxDC::ComputeScaleAndOrigin()
-{
- // CMB: copy scale to see if it changes
- double origScaleX = m_scaleX;
- double origScaleY = m_scaleY;
-
- m_scaleX = m_logicalScaleX * m_userScaleX;
- m_scaleY = m_logicalScaleY * m_userScaleY;
-
- // CMB: if scale has changed call SetPen to recalulate the line width
- if (m_scaleX != origScaleX || m_scaleY != origScaleY)
- {
- // this is a bit artificial, but we need to force wxDC to think
- // the pen has changed
- // It gives an Assert, Robert Roebling
-/*
- wxPen pen = m_pen;
- m_pen = wxNullPen;
- SetPen( pen );
-*/
- }
-}
-
-void wxDC::SetMapMode( int mode )
-{
- switch (mode)
- {
- case wxMM_TWIPS:
- SetLogicalScale( twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y );
- break;
- case wxMM_POINTS:
- SetLogicalScale( pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y );
- break;
- case wxMM_METRIC:
- SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
- break;
- case wxMM_LOMETRIC:
- SetLogicalScale( m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0 );
- break;
- default:
- case wxMM_TEXT:
- SetLogicalScale( 1.0, 1.0 );
- break;
- }
-/* we don't do this mega optimisation
- if (mode != wxMM_TEXT)
- {
- m_needComputeScaleX = TRUE;
- m_needComputeScaleY = TRUE;
- }
-*/
-}
-
-void wxDC::SetUserScale( double x, double y )
-{
- // allow negative ? -> no
- m_userScaleX = x;
- m_userScaleY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDC::SetLogicalScale( double x, double y )
-{
- // allow negative ?
- m_logicalScaleX = x;
- m_logicalScaleY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDC::SetLogicalOrigin( long x, long y )
-{
- m_logicalOriginX = x * m_signX; // is this still correct ?
- m_logicalOriginY = y * m_signY;
- ComputeScaleAndOrigin();
-}
-
-void wxDC::SetDeviceOrigin( long x, long y )
-{
- // only wxPostScripDC has m_signX = -1, we override SetDeviceOrigin there
- m_deviceOriginX = x;
- m_deviceOriginY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
-{
- // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there
- m_signX = (xLeftRight ? 1 : -1);
- m_signY = (yBottomUp ? -1 : 1);
- ComputeScaleAndOrigin();
-}
-
-// ---------------------------------------------------------------------------
-// coordinates transformations
-// ---------------------------------------------------------------------------
-
-long wxDCBase::DeviceToLogicalX(long x) const
-{
- return ((wxDC *)this)->XDEV2LOG(x);
-}
-
-long wxDCBase::DeviceToLogicalY(long y) const
-{
- return ((wxDC *)this)->YDEV2LOG(y);
-}
-
-long wxDCBase::DeviceToLogicalXRel(long x) const
-{
- return ((wxDC *)this)->XDEV2LOGREL(x);
-}
-
-long wxDCBase::DeviceToLogicalYRel(long y) const
-{
- return ((wxDC *)this)->YDEV2LOGREL(y);
-}
-
-long wxDCBase::LogicalToDeviceX(long x) const
-{
- return ((wxDC *)this)->XLOG2DEV(x);
-}
-
-long wxDCBase::LogicalToDeviceY(long y) const
-{
- return ((wxDC *)this)->YLOG2DEV(y);
-}
-
-long wxDCBase::LogicalToDeviceXRel(long x) const
-{
- return ((wxDC *)this)->XLOG2DEVREL(x);
-}
-
-long wxDCBase::LogicalToDeviceYRel(long y) const
-{
- return ((wxDC *)this)->YLOG2DEVREL(y);
-}
-
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