Reformatted Motif headers; added __WXX11__ symbol support to common headers;

[wxWidgets.git] / src / x11 / dc.cpp

diff --git a/src/x11/dc.cpp b/src/x11/dc.cpp
new file mode 100644 (file)
index 0000000..cc5c535
--- /dev/null
+++ b/src/x11/dc.cpp
@@ -0,0 +1,232 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        dc.cpp
+// Purpose:     wxDC class
+// Author:      Julian Smart
+// Modified by:
+// Created:     01/02/97
+// RCS-ID:      $Id$
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef __GNUG__
+    #pragma implementation "dc.h"
+#endif
+
+#include "wx/dc.h"
+#include "wx/dcmemory.h"
+#include "wx/defs.h"
+
+    IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
+
+//-----------------------------------------------------------------------------
+// constants
+//-----------------------------------------------------------------------------
+
+#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
+//-----------------------------------------------------------------------------
+
+wxDC::wxDC()
+{
+    m_ok = FALSE;
+
+    m_mm_to_pix_x = 1.0;
+    m_mm_to_pix_y = 1.0;
+
+    m_backgroundMode = wxTRANSPARENT;
+
+    m_isInteractive = FALSE;
+}
+
+void wxDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y)
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
+    wxCHECK_RET( icon.Ok(), "invalid icon" );
+
+    DoDrawBitmap(icon, x, y, TRUE);
+}
+
+void wxDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool useMask )
+{
+    wxCHECK_RET( bitmap.Ok(), "invalid bitmap" );
+
+    wxMemoryDC memDC;
+    memDC.SelectObject(bitmap);
+
+#if 0
+    // Not sure if we need this. The mask should leave the masked areas as per
+    // the original background of this DC.
+    if (useMask)
+    {
+        // There might be transparent areas, so make these the same colour as this
+        // DC
+        memDC.SetBackground(* GetBackground());
+        memDC.Clear();
+    }
+#endif // 0
+
+    Blit(x, y, bitmap.GetWidth(), bitmap.GetHeight(), &memDC, 0, 0, wxCOPY, useMask);
+
+    memDC.SelectObject(wxNullBitmap);
+}
+
+void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+{
+    m_clipping = TRUE;
+    m_clipX1 = x;
+    m_clipY1 = y;
+    m_clipX2 = x + width;
+    m_clipY2 = y + height;
+}
+
+void wxDC::DestroyClippingRegion()
+{
+    m_clipping = FALSE;
+}
+
+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
+{
+    int w, h;
+    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) );
+}
+
+// Resolution in pixels per logical inch
+wxSize wxDC::GetPPI() const
+{
+    // TODO (should probably be pure virtual)
+    return wxSize(0, 0);
+}
+
+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;
+    }
+    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( wxCoord x, wxCoord y )
+{
+    m_logicalOriginX = x * m_signX;   // is this still correct ?
+    m_logicalOriginY = y * m_signY;
+    ComputeScaleAndOrigin();
+}
+
+void wxDC::SetDeviceOrigin( wxCoord x, wxCoord 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 )
+{
+    m_signX = xLeftRight ?  1 : -1;
+    m_signY = yBottomUp  ? -1 :  1;
+    ComputeScaleAndOrigin();
+}
+
+wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
+{
+  return ((wxDC *)this)->XDEV2LOG(x);
+}
+
+wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
+{
+  return ((wxDC *)this)->YDEV2LOG(y);
+}
+
+wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
+{
+  return ((wxDC *)this)->XDEV2LOGREL(x);
+}
+
+wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
+{
+  return ((wxDC *)this)->YDEV2LOGREL(y);
+}
+
+wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
+{
+  return ((wxDC *)this)->XLOG2DEV(x);
+}
+
+wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
+{
+  return ((wxDC *)this)->YLOG2DEV(y);
+}
+
+wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
+{
+  return ((wxDC *)this)->XLOG2DEVREL(x);
+}
+
+wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
+{
+  return ((wxDC *)this)->YLOG2DEVREL(y);
+}
+
+void wxDC::ComputeScaleAndOrigin()
+{
+    m_scaleX = m_logicalScaleX * m_userScaleX;
+    m_scaleY = m_logicalScaleY * m_userScaleY;
+}
+