X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b4e76e0d7e4c1be878e125df31dc9370bb0fa99e..7c78e7c70271608b076b1dbed201b1204e6898d4:/src/qt/dc.cpp

diff --git a/src/qt/dc.cpp b/src/qt/dc.cpp
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+/////////////////////////////////////////////////////////////////////////////
+// Name:        dc.cpp
+// Purpose:
+// Author:      Robert Roebling
+// Created:     01/02/97
+// RCS-ID:      $Id$
+// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Licence:   	wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+
+#ifdef __GNUG__
+#pragma implementation "dc.h"
+#endif
+
+#include "wx/dc.h"
+
+//-----------------------------------------------------------------------------
+// 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
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxDC,wxObject)
+
+wxDC::wxDC(void)
+{
+  m_ok = FALSE;
+  m_optimize = FALSE;
+  m_autoSetting = FALSE;
+  m_colour = TRUE;
+  m_clipping = FALSE;
+  
+  m_mm_to_pix_x = 1.0;
+  m_mm_to_pix_y = 1.0;
+  
+  m_logicalOriginX = 0;
+  m_logicalOriginY = 0;
+  m_deviceOriginX = 0;
+  m_deviceOriginY = 0;
+  m_internalDeviceOriginX = 0;
+  m_internalDeviceOriginY = 0;
+  m_externalDeviceOriginX = 0;
+  m_externalDeviceOriginY = 0;
+  
+  m_logicalScaleX = 1.0;
+  m_logicalScaleY = 1.0;
+  m_userScaleX = 1.0;
+  m_userScaleY = 1.0;
+  m_scaleX = 1.0;
+  m_scaleY = 1.0;
+  
+  m_mappingMode = MM_TEXT;
+  m_needComputeScaleX = FALSE;
+  m_needComputeScaleY = FALSE;
+  
+  m_signX = 1;  // default x-axis left to right
+  m_signY = 1;  // default y-axis top down
+
+  m_maxX = m_maxY = -100000;
+  m_minY = m_minY =  100000;
+
+  m_logicalFunction = wxCOPY;
+//  m_textAlignment = wxALIGN_TOP_LEFT;
+  m_backgroundMode = wxTRANSPARENT;
+  
+  m_textForegroundColour = *wxBLACK;
+  m_textBackgroundColour = *wxWHITE;
+  m_pen = *wxBLACK_PEN;
+  m_font = *wxNORMAL_FONT;
+  m_brush = *wxTRANSPARENT_BRUSH;
+  m_backgroundBrush = *wxWHITE_BRUSH;
+  
+//  m_palette = wxAPP_COLOURMAP;
+};
+
+wxDC::~wxDC(void)
+{
+};
+
+void wxDC::DrawArc( long WXUNUSED(x1), long WXUNUSED(y1), long WXUNUSED(x2), long WXUNUSED(y2), 
+  double WXUNUSED(xc), double WXUNUSED(yc) )
+{
+};
+
+void wxDC::DrawIcon( const wxIcon &WXUNUSED(icon), long WXUNUSED(x), long WXUNUSED(y), bool WXUNUSED(useMask) ) 
+{
+};
+
+void wxDC::DrawPoint( wxPoint& point ) 
+{ 
+  DrawPoint( point.x, point.y ); 
+};
+
+void wxDC::DrawPolygon( wxList *list, long xoffset, long yoffset, int fillStyle )
+{
+  int n = list->Number();
+  wxPoint *points = new wxPoint[n];
+
+  int i = 0;
+  for( wxNode *node = list->First(); node; node = node->Next() )
+  {
+    wxPoint *point = (wxPoint *)node->Data();
+    points[i].x = point->x;
+    points[i++].y = point->y;
+  };
+  DrawPolygon( n, points, xoffset, yoffset, fillStyle );
+  delete[] points;
+};
+
+void wxDC::DrawLines( wxList *list, long xoffset, long yoffset )
+{
+  int n = list->Number();
+  wxPoint *points = new wxPoint[n];
+
+  int i = 0;
+  for( wxNode *node = list->First(); node; node = node->Next() ) 
+  {
+    wxPoint *point = (wxPoint *)node->Data();
+    points[i].x = point->x;
+    points[i++].y = point->y;
+  };
+  DrawLines( n, points, xoffset, yoffset );
+  delete []points;
+};
+
+void wxDC::DrawSpline( long x1, long y1, long x2, long y2, long x3, long y3 )
+{
+  wxList list;
+  list.Append( (wxObject*)new wxPoint(x1, y1) );
+  list.Append( (wxObject*)new wxPoint(x2, y2) );
+  list.Append( (wxObject*)new wxPoint(x3, y3) );
+  DrawSpline(&list);
+  wxNode *node = list.First();
+  while (node)
+  {
+    wxPoint *p = (wxPoint*)node->Data();
+    delete p;
+    node = node->Next();
+  };
+};
+
+void wxDC::DrawSpline( wxList *points )
+{
+  DrawOpenSpline( points );
+};
+
+void wxDC::DrawSpline( int n, wxPoint points[] )
+{
+  wxList list;
+  for (int i = 0; i < n; i++) list.Append( (wxObject*)&points[i] );
+  DrawSpline( &list );
+};
+
+void wxDC::SetClippingRegion( long x, long y, long width, long height )
+{
+  m_clipping = TRUE;
+  m_clipX1 = x;
+  m_clipY1 = y;
+  m_clipX2 = x + width;
+  m_clipY2 = y + height;
+};
+
+void wxDC::DestroyClippingRegion(void)
+{
+  m_clipping = FALSE;
+};
+
+void wxDC::GetClippingBox( long *x, long *y, long *width, long *height ) const
+{
+  if (m_clipping)
+  {
+    if (x) *x = m_clipX1;
+    if (y) *y = m_clipY1;
+    if (width) *width = (m_clipX2 - m_clipX1);
+    if (height) *height = (m_clipY2 - m_clipY1);
+  }
+  else
+   *x = *y = *width = *height = 0;
+};
+
+void wxDC::GetSize( int* width, int* height ) const
+{
+  *width = m_maxX-m_minX;
+  *height = m_maxY-m_minY;
+};
+
+void wxDC::GetSizeMM( long* width, long* height ) const
+{
+  int w = 0;
+  int h = 0;
+  GetSize( &w, &h );
+  *width = long( double(w) / (m_scaleX*m_mm_to_pix_x) );
+  *height = long( double(h) / (m_scaleY*m_mm_to_pix_y) );
+};
+
+void wxDC::SetTextForeground( const wxColour &col )
+{
+  if (!Ok()) return;
+  m_textForegroundColour = col;
+};
+
+void wxDC::SetTextBackground( const wxColour &col )
+{
+  if (!Ok()) return;
+  m_textBackgroundColour = col;
+};
+
+void wxDC::SetMapMode( int mode )
+{
+  switch (mode) 
+  {
+    case MM_TWIPS:
+      SetLogicalScale( twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y );
+      break;
+    case MM_POINTS:
+      SetLogicalScale( pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y );
+      break;
+    case MM_METRIC:
+      SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
+      break;
+    case MM_LOMETRIC:
+      SetLogicalScale( m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0 );
+      break;
+    default:
+    case MM_TEXT:
+      SetLogicalScale( 1.0, 1.0 );
+      break;
+  };
+  if (mode != MM_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::GetUserScale( double *x, double *y )
+{
+  if (x) *x = m_userScaleX;
+  if (y) *y = m_userScaleY;
+};
+
+void wxDC::SetLogicalScale( double x, double y )
+{
+  // allow negative ?
+  m_logicalScaleX = x;
+  m_logicalScaleY = y;
+  ComputeScaleAndOrigin();
+};
+
+void wxDC::GetLogicalScale( double *x, double *y )
+{
+  if (x) *x = m_logicalScaleX;
+  if (y) *y = m_logicalScaleY;
+};
+
+void wxDC::SetLogicalOrigin( long x, long y )
+{
+  m_logicalOriginX = x * m_signX;   // is this still correct ?
+  m_logicalOriginY = y * m_signY;
+  ComputeScaleAndOrigin();
+};
+
+void wxDC::GetLogicalOrigin( long *x, long *y )
+{
+  if (x) *x = m_logicalOriginX;
+  if (y) *y = m_logicalOriginY;
+};
+
+void wxDC::SetDeviceOrigin( long x, long y )
+{
+  m_externalDeviceOriginX = x;
+  m_externalDeviceOriginY = y;
+  ComputeScaleAndOrigin();
+};
+
+void wxDC::GetDeviceOrigin( long *x, long *y )
+{
+//  if (x) *x = m_externalDeviceOriginX;
+//  if (y) *y = m_externalDeviceOriginY;
+  if (x) *x = m_deviceOriginX;
+  if (y) *y = m_deviceOriginY;
+};
+
+void wxDC::SetInternalDeviceOrigin( long x, long y )
+{
+  m_internalDeviceOriginX = x;
+  m_internalDeviceOriginY = y;
+  ComputeScaleAndOrigin();
+};
+
+void wxDC::GetInternalDeviceOrigin( long *x, long *y )
+{
+  if (x) *x = m_internalDeviceOriginX;
+  if (y) *y = m_internalDeviceOriginY;
+};
+
+void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
+{
+  m_signX = (xLeftRight ?  1 : -1);
+  m_signY = (yBottomUp  ? -1 :  1);
+  ComputeScaleAndOrigin();
+};
+
+long wxDC::DeviceToLogicalX(long x) const
+{
+  return XDEV2LOG(x);
+};
+
+long wxDC::DeviceToLogicalY(long y) const
+{
+  return YDEV2LOG(y);
+};
+
+long wxDC::DeviceToLogicalXRel(long x) const
+{
+  return XDEV2LOGREL(x);
+};
+
+long wxDC::DeviceToLogicalYRel(long y) const
+{
+  return YDEV2LOGREL(y);
+};
+
+long wxDC::LogicalToDeviceX(long x) const
+{
+  return XLOG2DEV(x);
+};
+
+long wxDC::LogicalToDeviceY(long y) const
+{
+  return YLOG2DEV(y);
+};
+
+long wxDC::LogicalToDeviceXRel(long x) const
+{
+  return XLOG2DEVREL(x);
+};
+
+long wxDC::LogicalToDeviceYRel(long y) const
+{
+  return YLOG2DEVREL(y);
+};
+    
+void wxDC::CalcBoundingBox( long x, long y )
+{
+  if (x < m_minX) m_minX = x;
+  if (y < m_minY) m_minY = y;
+  if (x > m_maxX) m_maxX = x;
+  if (y > m_maxY) m_maxY = y;
+};
+
+void wxDC::ComputeScaleAndOrigin(void)
+{
+  // 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;
+
+  m_deviceOriginX = m_internalDeviceOriginX + m_externalDeviceOriginX;
+  m_deviceOriginY = m_internalDeviceOriginY + m_externalDeviceOriginY;
+
+  // 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
+    wxPen* pen = GetPen();
+    wxPen tempPen;
+    m_pen = tempPen;
+    SetPen(pen);
+  }
+};
+