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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3190 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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David Webster
385
src/os2/dc.cpp
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385
src/os2/dc.cpp
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/////////////////////////////////////////////////////////////////////////////
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// Name: dc.cpp
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// Purpose: wxDC class
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// Author: AUTHOR
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// Modified by:
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) AUTHOR
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "dc.h"
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#endif
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#include "wx/dc.h"
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#if !USE_SHARED_LIBRARY
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IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
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#endif
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//-----------------------------------------------------------------------------
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// constants
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//-----------------------------------------------------------------------------
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#define mm2inches 0.0393700787402
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#define inches2mm 25.4
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#define mm2twips 56.6929133859
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#define twips2mm 0.0176388888889
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#define mm2pt 2.83464566929
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#define pt2mm 0.352777777778
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//-----------------------------------------------------------------------------
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// wxDC
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//-----------------------------------------------------------------------------
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wxDC::wxDC(void)
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{
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m_ok = FALSE;
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m_optimize = FALSE;
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m_autoSetting = FALSE;
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m_colour = TRUE;
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m_clipping = FALSE;
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m_mm_to_pix_x = 1.0;
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m_mm_to_pix_y = 1.0;
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m_logicalOriginX = 0;
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m_logicalOriginY = 0;
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m_deviceOriginX = 0;
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m_deviceOriginY = 0;
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m_internalDeviceOriginX = 0;
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m_internalDeviceOriginY = 0;
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m_externalDeviceOriginX = 0;
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m_externalDeviceOriginY = 0;
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m_logicalScaleX = 1.0;
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m_logicalScaleY = 1.0;
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m_userScaleX = 1.0;
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m_userScaleY = 1.0;
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m_scaleX = 1.0;
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m_scaleY = 1.0;
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m_mappingMode = wxMM_TEXT;
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m_needComputeScaleX = FALSE;
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m_needComputeScaleY = FALSE;
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m_signX = 1; // default x-axis left to right
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m_signY = 1; // default y-axis top down
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m_maxX = m_maxY = -100000;
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m_minY = m_minY = 100000;
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m_logicalFunction = wxCOPY;
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// m_textAlignment = wxALIGN_TOP_LEFT;
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m_backgroundMode = wxTRANSPARENT;
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m_textForegroundColour = *wxBLACK;
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m_textBackgroundColour = *wxWHITE;
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m_pen = *wxBLACK_PEN;
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m_font = *wxNORMAL_FONT;
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m_brush = *wxTRANSPARENT_BRUSH;
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m_backgroundBrush = *wxWHITE_BRUSH;
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// m_palette = wxAPP_COLOURMAP;
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};
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wxDC::~wxDC(void)
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{
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};
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void wxDC::DrawIcon( const wxIcon &WXUNUSED(icon), long WXUNUSED(x), long WXUNUSED(y), bool WXUNUSED(useMask) )
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{
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};
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void wxDC::DrawPoint( wxPoint& point )
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{
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DrawPoint( point.x, point.y );
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};
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void wxDC::DrawPolygon( wxList *list, long xoffset, long yoffset, int fillStyle )
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{
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int n = list->Number();
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wxPoint *points = new wxPoint[n];
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int i = 0;
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for( wxNode *node = list->First(); node; node = node->Next() )
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{
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wxPoint *point = (wxPoint *)node->Data();
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points[i].x = point->x;
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points[i++].y = point->y;
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};
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DrawPolygon( n, points, xoffset, yoffset, fillStyle );
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delete[] points;
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};
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void wxDC::DrawLines( wxList *list, long xoffset, long yoffset )
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{
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int n = list->Number();
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wxPoint *points = new wxPoint[n];
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int i = 0;
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for( wxNode *node = list->First(); node; node = node->Next() )
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{
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wxPoint *point = (wxPoint *)node->Data();
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points[i].x = point->x;
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points[i++].y = point->y;
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};
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DrawLines( n, points, xoffset, yoffset );
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delete []points;
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};
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void wxDC::DrawSpline( long x1, long y1, long x2, long y2, long x3, long y3 )
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{
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wxList list;
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list.Append( (wxObject*)new wxPoint(x1, y1) );
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list.Append( (wxObject*)new wxPoint(x2, y2) );
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list.Append( (wxObject*)new wxPoint(x3, y3) );
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DrawSpline(&list);
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wxNode *node = list.First();
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while (node)
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{
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wxPoint *p = (wxPoint*)node->Data();
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delete p;
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node = node->Next();
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};
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};
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void wxDC::DrawSpline( int n, wxPoint points[] )
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{
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wxList list;
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for (int i = 0; i < n; i++) list.Append( (wxObject*)&points[i] );
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DrawSpline( &list );
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};
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void wxDC::SetClippingRegion( long x, long y, long width, long height )
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{
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m_clipping = TRUE;
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m_clipX1 = x;
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m_clipY1 = y;
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m_clipX2 = x + width;
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m_clipY2 = y + height;
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};
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void wxDC::DestroyClippingRegion(void)
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{
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m_clipping = FALSE;
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};
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void wxDC::GetClippingBox( long *x, long *y, long *width, long *height ) const
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{
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if (m_clipping)
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{
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if (x) *x = m_clipX1;
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if (y) *y = m_clipY1;
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if (width) *width = (m_clipX2 - m_clipX1);
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if (height) *height = (m_clipY2 - m_clipY1);
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}
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else
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*x = *y = *width = *height = 0;
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};
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void wxDC::GetSize( int* width, int* height ) const
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{
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*width = m_maxX-m_minX;
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*height = m_maxY-m_minY;
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};
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void wxDC::GetSizeMM( long* width, long* height ) const
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{
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int w = 0;
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int h = 0;
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GetSize( &w, &h );
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*width = long( double(w) / (m_scaleX*m_mm_to_pix_x) );
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*height = long( double(h) / (m_scaleY*m_mm_to_pix_y) );
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};
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void wxDC::SetTextForeground( const wxColour &col )
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{
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if (!Ok()) return;
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m_textForegroundColour = col;
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};
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void wxDC::SetTextBackground( const wxColour &col )
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{
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if (!Ok()) return;
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m_textBackgroundColour = col;
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};
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void wxDC::SetMapMode( int mode )
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{
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switch (mode)
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{
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case wxMM_TWIPS:
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SetLogicalScale( twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y );
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break;
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case wxMM_POINTS:
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SetLogicalScale( pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y );
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break;
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case wxMM_METRIC:
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SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
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break;
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case wxMM_LOMETRIC:
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SetLogicalScale( m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0 );
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break;
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default:
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case wxMM_TEXT:
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SetLogicalScale( 1.0, 1.0 );
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break;
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};
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if (mode != wxMM_TEXT)
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{
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m_needComputeScaleX = TRUE;
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m_needComputeScaleY = TRUE;
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};
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};
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void wxDC::SetUserScale( double x, double y )
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{
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// allow negative ? -> no
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m_userScaleX = x;
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m_userScaleY = y;
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ComputeScaleAndOrigin();
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};
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void wxDC::GetUserScale( double *x, double *y )
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{
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if (x) *x = m_userScaleX;
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if (y) *y = m_userScaleY;
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};
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void wxDC::SetLogicalScale( double x, double y )
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{
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// allow negative ?
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m_logicalScaleX = x;
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m_logicalScaleY = y;
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ComputeScaleAndOrigin();
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};
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void wxDC::GetLogicalScale( double *x, double *y )
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{
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if (x) *x = m_logicalScaleX;
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if (y) *y = m_logicalScaleY;
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};
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void wxDC::SetLogicalOrigin( long x, long y )
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{
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m_logicalOriginX = x * m_signX; // is this still correct ?
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m_logicalOriginY = y * m_signY;
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ComputeScaleAndOrigin();
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};
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void wxDC::GetLogicalOrigin( long *x, long *y )
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{
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if (x) *x = m_logicalOriginX;
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if (y) *y = m_logicalOriginY;
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};
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void wxDC::SetDeviceOrigin( long x, long y )
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{
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m_externalDeviceOriginX = x;
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m_externalDeviceOriginY = y;
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ComputeScaleAndOrigin();
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};
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void wxDC::GetDeviceOrigin( long *x, long *y )
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{
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// if (x) *x = m_externalDeviceOriginX;
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// if (y) *y = m_externalDeviceOriginY;
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if (x) *x = m_deviceOriginX;
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if (y) *y = m_deviceOriginY;
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};
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void wxDC::SetInternalDeviceOrigin( long x, long y )
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{
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m_internalDeviceOriginX = x;
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m_internalDeviceOriginY = y;
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ComputeScaleAndOrigin();
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};
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void wxDC::GetInternalDeviceOrigin( long *x, long *y )
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{
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if (x) *x = m_internalDeviceOriginX;
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if (y) *y = m_internalDeviceOriginY;
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};
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void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
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{
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m_signX = (xLeftRight ? 1 : -1);
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m_signY = (yBottomUp ? -1 : 1);
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ComputeScaleAndOrigin();
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};
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long wxDC::DeviceToLogicalX(long x) const
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{
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return XDEV2LOG(x);
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};
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long wxDC::DeviceToLogicalY(long y) const
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{
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return YDEV2LOG(y);
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};
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long wxDC::DeviceToLogicalXRel(long x) const
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{
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return XDEV2LOGREL(x);
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};
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long wxDC::DeviceToLogicalYRel(long y) const
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{
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return YDEV2LOGREL(y);
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};
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long wxDC::LogicalToDeviceX(long x) const
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{
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return XLOG2DEV(x);
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};
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long wxDC::LogicalToDeviceY(long y) const
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{
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return YLOG2DEV(y);
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};
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long wxDC::LogicalToDeviceXRel(long x) const
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{
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return XLOG2DEVREL(x);
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};
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long wxDC::LogicalToDeviceYRel(long y) const
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{
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return YLOG2DEVREL(y);
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};
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void wxDC::CalcBoundingBox( long x, long y )
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{
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if (x < m_minX) m_minX = x;
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if (y < m_minY) m_minY = y;
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if (x > m_maxX) m_maxX = x;
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if (y > m_maxY) m_maxY = y;
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};
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void wxDC::ComputeScaleAndOrigin(void)
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{
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// CMB: copy scale to see if it changes
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double origScaleX = m_scaleX;
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double origScaleY = m_scaleY;
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m_scaleX = m_logicalScaleX * m_userScaleX;
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m_scaleY = m_logicalScaleY * m_userScaleY;
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m_deviceOriginX = m_internalDeviceOriginX + m_externalDeviceOriginX;
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m_deviceOriginY = m_internalDeviceOriginY + m_externalDeviceOriginY;
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// CMB: if scale has changed call SetPen to recalulate the line width
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if (m_scaleX != origScaleX || m_scaleY != origScaleY)
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{
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// this is a bit artificial, but we need to force wxDC to think
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// the pen has changed
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wxPen* pen = & GetPen();
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wxPen tempPen;
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m_pen = tempPen;
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SetPen(* pen);
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}
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};
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