/////////////////////////////////////////////////////////////////////////////
-// Name: common/dcbase.cpp
+// Name: src/common/dcbase.cpp
// Purpose: generic methods of the wxDC Class
// Author: Vadim Zeitlin
// Modified by:
// Created: 05/25/99
// RCS-ID: $Id$
-// Copyright: (c) wxWindows team
+// Copyright: (c) wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// declarations
// ============================================================================
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "dcbase.h"
-#endif
-
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#endif
#include "wx/dc.h"
+#include "wx/dcclient.h"
+#include "wx/dcmemory.h"
+#include "wx/dcscreen.h"
+#include "wx/dcprint.h"
+#include "wx/prntbase.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/math.h"
+ #include "wx/module.h"
+#endif
-#include <math.h>
+#ifdef __WXMSW__
+ #include "wx/msw/dcclient.h"
+ #include "wx/msw/dcmemory.h"
+ #include "wx/msw/dcscreen.h"
+#endif
-// bool wxDCBase::sm_cacheing = FALSE;
+#ifdef __WXGTK20__
+ #include "wx/gtk/dcclient.h"
+ #include "wx/gtk/dcmemory.h"
+ #include "wx/gtk/dcscreen.h"
+#elif defined(__WXGTK__)
+ #include "wx/gtk1/dcclient.h"
+ #include "wx/gtk1/dcmemory.h"
+ #include "wx/gtk1/dcscreen.h"
+#endif
-// ============================================================================
-// implementation
-// ============================================================================
+#ifdef __WXMAC__
+ #include "wx/mac/dcclient.h"
+ #include "wx/mac/dcmemory.h"
+ #include "wx/mac/dcscreen.h"
+#endif
+
+#ifdef __WXPM__
+ #include "wx/os2/dcclient.h"
+ #include "wx/os2/dcmemory.h"
+ #include "wx/os2/dcscreen.h"
+#endif
+
+#ifdef __WXCOCOA__
+ #include "wx/cocoa/dcclient.h"
+ #include "wx/cocoa/dcmemory.h"
+ #include "wx/cocoa/dcscreen.h"
+#endif
+
+#ifdef __WXMOTIF__
+ #include "wx/motif/dcclient.h"
+ #include "wx/motif/dcmemory.h"
+ #include "wx/motif/dcscreen.h"
+#endif
+
+#ifdef __WXX11__
+ #include "wx/x11/dcclient.h"
+ #include "wx/x11/dcmemory.h"
+ #include "wx/x11/dcscreen.h"
+#endif
+
+#ifdef __WXDFB__
+ #include "wx/dfb/dcclient.h"
+ #include "wx/dfb/dcmemory.h"
+ #include "wx/dfb/dcscreen.h"
+#endif
+
+#ifdef __WXPALMOS__
+ #include "wx/palmos/dcclient.h"
+ #include "wx/palmos/dcmemory.h"
+ #include "wx/palmos/dcscreen.h"
+#endif
+
+//----------------------------------------------------------------------------
+// wxDCFactory
+//----------------------------------------------------------------------------
+
+wxDCFactory *wxDCFactory::m_factory = NULL;
+
+void wxDCFactory::Set(wxDCFactory *factory)
+{
+ delete m_factory;
+
+ m_factory = factory;
+}
+
+wxDCFactory *wxDCFactory::Get()
+{
+ if ( !m_factory )
+ m_factory = new wxNativeDCFactory;
+
+ return m_factory;
+}
+
+class wxDCFactoryCleanupModule : public wxModule
+{
+public:
+ virtual bool OnInit() { return true; }
+ virtual void OnExit() { wxDCFactory::Set(NULL); }
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxDCFactoryCleanupModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxDCFactoryCleanupModule, wxModule)
+
+//-----------------------------------------------------------------------------
+// wxNativeDCFactory
+//-----------------------------------------------------------------------------
+
+wxDCImpl* wxNativeDCFactory::CreateWindowDC( wxWindowDC *owner )
+{
+ return new wxWindowDCImpl( owner );
+}
+
+wxDCImpl* wxNativeDCFactory::CreateWindowDC( wxWindowDC *owner, wxWindow *window )
+{
+ return new wxWindowDCImpl( owner, window );
+}
+
+wxDCImpl* wxNativeDCFactory::CreateClientDC( wxClientDC *owner )
+{
+ return new wxClientDCImpl( owner );
+}
+
+wxDCImpl* wxNativeDCFactory::CreateClientDC( wxClientDC *owner, wxWindow *window )
+{
+ return new wxClientDCImpl( owner, window );
+}
+
+wxDCImpl* wxNativeDCFactory::CreatePaintDC( wxPaintDC *owner )
+{
+ return new wxPaintDCImpl( owner );
+}
+
+wxDCImpl* wxNativeDCFactory::CreatePaintDC( wxPaintDC *owner, wxWindow *window )
+{
+ return new wxPaintDCImpl( owner, window );
+}
+
+wxDCImpl* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner )
+{
+ return new wxMemoryDCImpl( owner );
+}
+
+wxDCImpl* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap )
+{
+ return new wxMemoryDCImpl( owner, bitmap );
+}
+
+wxDCImpl* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner, wxDC *dc )
+{
+ return new wxMemoryDCImpl( owner, dc );
+}
+
+wxDCImpl* wxNativeDCFactory::CreateScreenDC( wxScreenDC *owner )
+{
+ return new wxScreenDCImpl( owner );
+}
+
+#if wxUSE_PRINTING_ARCHITECTURE
+wxDCImpl *wxNativeDCFactory::CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data )
+{
+ wxPrintFactory *factory = wxPrintFactory::GetFactory();
+ return factory->CreatePrinterDCImpl( owner, data );
+}
+#endif
+
+//-----------------------------------------------------------------------------
+// wxWindowDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxWindowDC, wxDC)
+
+wxWindowDC::wxWindowDC(wxWindow *win)
+ : wxDC(wxDCFactory::Get()->CreateWindowDC(this, win))
+{
+}
+
+//-----------------------------------------------------------------------------
+// wxClientDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxClientDC, wxWindowDC)
+
+wxClientDC::wxClientDC(wxWindow *win)
+ : wxWindowDC(wxDCFactory::Get()->CreateClientDC(this, win))
+{
+}
+
+//-----------------------------------------------------------------------------
+// wxMemoryDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxDC)
+
+wxMemoryDC::wxMemoryDC()
+ : wxDC(wxDCFactory::Get()->CreateMemoryDC(this))
+{
+}
+
+wxMemoryDC::wxMemoryDC(wxBitmap& bitmap)
+ : wxDC(wxDCFactory::Get()->CreateMemoryDC(this, bitmap))
+{
+}
+
+wxMemoryDC::wxMemoryDC(wxDC *dc)
+ : wxDC(wxDCFactory::Get()->CreateMemoryDC(this, dc))
+{
+}
+
+void wxMemoryDC::SelectObject(wxBitmap& bmp)
+{
+ // make sure that the given wxBitmap is not sharing its data with other
+ // wxBitmap instances as its contents will be modified by any drawing
+ // operation done on this DC
+ if (bmp.IsOk())
+ bmp.UnShare();
+
+ GetImpl()->DoSelect(bmp);
+}
+
+void wxMemoryDC::SelectObjectAsSource(const wxBitmap& bmp)
+{
+ GetImpl()->DoSelect(bmp);
+}
+
+const wxBitmap& wxMemoryDC::GetSelectedBitmap() const
+{
+ return GetImpl()->GetSelectedBitmap();
+}
+
+wxBitmap& wxMemoryDC::GetSelectedBitmap()
+{
+ return GetImpl()->GetSelectedBitmap();
+}
+
+
+//-----------------------------------------------------------------------------
+// wxPaintDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxPaintDC, wxClientDC)
+
+wxPaintDC::wxPaintDC(wxWindow *win)
+ : wxClientDC(wxDCFactory::Get()->CreatePaintDC(this, win))
+{
+}
+
+//-----------------------------------------------------------------------------
+// wxScreenDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxScreenDC, wxWindowDC)
+
+wxScreenDC::wxScreenDC()
+ : wxDC(wxDCFactory::Get()->CreateScreenDC(this))
+{
+}
+
+//-----------------------------------------------------------------------------
+// wxPrinterDC
+//-----------------------------------------------------------------------------
+
+#if wxUSE_PRINTING_ARCHITECTURE
+
+IMPLEMENT_DYNAMIC_CLASS(wxPrinterDC, wxDC)
+
+wxPrinterDC::wxPrinterDC()
+ : wxDC(wxDCFactory::Get()->CreatePrinterDC(this, wxPrintData()))
+{
+}
+
+wxPrinterDC::wxPrinterDC(const wxPrintData& data)
+ : wxDC(wxDCFactory::Get()->CreatePrinterDC(this, data))
+{
+}
+
+wxRect wxPrinterDC::GetPaperRect()
+{
+ return GetImpl()->GetPaperRect();
+}
+
+int wxPrinterDC::GetResolution()
+{
+ return GetImpl()->GetResolution();
+}
+
+#endif // wxUSE_PRINTING_ARCHITECTURE
+
+//-----------------------------------------------------------------------------
+// wxDCImpl
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxDCImpl, wxObject)
+
+wxDCImpl::wxDCImpl( wxDC *owner )
+ : m_window(NULL)
+ , m_colour(wxColourDisplay())
+ , m_ok(true)
+ , m_clipping(false)
+ , m_isInteractive(0)
+ , m_isBBoxValid(false)
+ , m_logicalOriginX(0), m_logicalOriginY(0)
+ , m_deviceOriginX(0), m_deviceOriginY(0)
+ , m_deviceLocalOriginX(0), m_deviceLocalOriginY(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_signX(1), m_signY(1)
+ , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
+ , m_clipX1(0), m_clipY1(0), m_clipX2(0), m_clipY2(0)
+ , m_logicalFunction(wxCOPY)
+ , m_backgroundMode(wxTRANSPARENT)
+ , m_mappingMode(wxMM_TEXT)
+ , m_pen()
+ , m_brush()
+ , m_backgroundBrush(*wxTRANSPARENT_BRUSH)
+ , m_textForegroundColour(*wxBLACK)
+ , m_textBackgroundColour(*wxWHITE)
+ , m_font()
+#if wxUSE_PALETTE
+ , m_palette()
+ , m_hasCustomPalette(false)
+#endif // wxUSE_PALETTE
+{
+ m_owner = owner;
+
+ m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() /
+ (double)wxGetDisplaySizeMM().GetWidth();
+ m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() /
+ (double)wxGetDisplaySizeMM().GetHeight();
+
+ ResetBoundingBox();
+ ResetClipping();
+}
+
+wxDCImpl::~wxDCImpl()
+{
+}
// ----------------------------------------------------------------------------
-// special symbols
+// coordinate conversions and transforms
// ----------------------------------------------------------------------------
-void wxDCBase::DoDrawCheckMark(wxCoord x1, wxCoord y1,
+wxCoord wxDCImpl::DeviceToLogicalX(wxCoord x) const
+{
+ return wxRound((double)(x - m_deviceOriginX - m_deviceLocalOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
+}
+
+wxCoord wxDCImpl::DeviceToLogicalY(wxCoord y) const
+{
+ return wxRound((double)(y - m_deviceOriginY - m_deviceLocalOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
+}
+
+wxCoord wxDCImpl::DeviceToLogicalXRel(wxCoord x) const
+{
+ return wxRound((double)(x) / m_scaleX);
+}
+
+wxCoord wxDCImpl::DeviceToLogicalYRel(wxCoord y) const
+{
+ return wxRound((double)(y) / m_scaleY);
+}
+
+wxCoord wxDCImpl::LogicalToDeviceX(wxCoord x) const
+{
+ return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX * m_signY + m_deviceLocalOriginX;
+}
+
+wxCoord wxDCImpl::LogicalToDeviceY(wxCoord y) const
+{
+ return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY * m_signY + m_deviceLocalOriginY;
+}
+
+wxCoord wxDCImpl::LogicalToDeviceXRel(wxCoord x) const
+{
+ return wxRound((double)(x) * m_scaleX);
+}
+
+wxCoord wxDCImpl::LogicalToDeviceYRel(wxCoord y) const
+{
+ return wxRound((double)(y) * m_scaleY);
+}
+
+void wxDCImpl::ComputeScaleAndOrigin()
+{
+ m_scaleX = m_logicalScaleX * m_userScaleX;
+ m_scaleY = m_logicalScaleY * m_userScaleY;
+}
+
+void wxDCImpl::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;
+ }
+ m_mappingMode = mode;
+}
+
+void wxDCImpl::SetUserScale( double x, double y )
+{
+ // allow negative ? -> no
+ m_userScaleX = x;
+ m_userScaleY = y;
+ ComputeScaleAndOrigin();
+}
+
+void wxDCImpl::SetLogicalScale( double x, double y )
+{
+ // allow negative ?
+ m_logicalScaleX = x;
+ m_logicalScaleY = y;
+ ComputeScaleAndOrigin();
+}
+
+void wxDCImpl::SetLogicalOrigin( wxCoord x, wxCoord y )
+{
+ m_logicalOriginX = x * m_signX;
+ m_logicalOriginY = y * m_signY;
+ ComputeScaleAndOrigin();
+}
+
+void wxDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y )
+{
+ m_deviceOriginX = x;
+ m_deviceOriginY = y;
+ ComputeScaleAndOrigin();
+}
+
+void wxDCImpl::SetDeviceLocalOrigin( wxCoord x, wxCoord y )
+{
+ m_deviceLocalOriginX = x;
+ m_deviceLocalOriginY = y;
+ ComputeScaleAndOrigin();
+}
+
+void wxDCImpl::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
+{
+ // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there
+ // wxWidgets 2.9: no longer override it
+ m_signX = (xLeftRight ? 1 : -1);
+ m_signY = (yBottomUp ? -1 : 1);
+ ComputeScaleAndOrigin();
+}
+
+
+// Each element of the widths array will be the width of the string up to and
+// including the corresponding character in text. This is the generic
+// implementation, the port-specific classes should do this with native APIs
+// if available and if faster. Note: pango_layout_index_to_pos is much slower
+// than calling GetTextExtent!!
+
+#define FWC_SIZE 256
+
+class FontWidthCache
+{
+public:
+ FontWidthCache() : m_scaleX(1), m_widths(NULL) { }
+ ~FontWidthCache() { delete []m_widths; }
+
+ void Reset()
+ {
+ if (!m_widths)
+ m_widths = new int[FWC_SIZE];
+
+ memset(m_widths, 0, sizeof(int)*FWC_SIZE);
+ }
+
+ wxFont m_font;
+ double m_scaleX;
+ int *m_widths;
+};
+
+static FontWidthCache s_fontWidthCache;
+
+bool wxDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
+{
+ int totalWidth = 0;
+
+ const size_t len = text.length();
+ widths.Empty();
+ widths.Add(0, len);
+
+ // reset the cache if font or horizontal scale have changed
+ if ( !s_fontWidthCache.m_widths ||
+ !wxIsSameDouble(s_fontWidthCache.m_scaleX, m_scaleX) ||
+ (s_fontWidthCache.m_font != GetFont()) )
+ {
+ s_fontWidthCache.Reset();
+ s_fontWidthCache.m_font = GetFont();
+ s_fontWidthCache.m_scaleX = m_scaleX;
+ }
+
+ // Calculate the position of each character based on the widths of
+ // the previous characters
+ int w, h;
+ for ( size_t i = 0; i < len; i++ )
+ {
+ const wxChar c = text[i];
+ unsigned int c_int = (unsigned int)c;
+
+ if ((c_int < FWC_SIZE) && (s_fontWidthCache.m_widths[c_int] != 0))
+ {
+ w = s_fontWidthCache.m_widths[c_int];
+ }
+ else
+ {
+ DoGetTextExtent(c, &w, &h);
+ if (c_int < FWC_SIZE)
+ s_fontWidthCache.m_widths[c_int] = w;
+ }
+
+ totalWidth += w;
+ widths[i] = totalWidth;
+ }
+
+ return true;
+}
+
+void wxDCImpl::GetMultiLineTextExtent(const wxString& text,
+ wxCoord *x,
+ wxCoord *y,
+ wxCoord *h,
+ const wxFont *font) const
+{
+ wxCoord widthTextMax = 0, widthLine,
+ heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
+
+ wxString curLine;
+ for ( wxString::const_iterator pc = text.begin(); ; ++pc )
+ {
+ if ( pc == text.end() || *pc == _T('\n') )
+ {
+ if ( curLine.empty() )
+ {
+ // we can't use GetTextExtent - it will return 0 for both width
+ // and height and an empty line should count in height
+ // calculation
+
+ // assume that this line has the same height as the previous
+ // one
+ if ( !heightLineDefault )
+ heightLineDefault = heightLine;
+
+ if ( !heightLineDefault )
+ {
+ // but we don't know it yet - choose something reasonable
+ DoGetTextExtent(_T("W"), NULL, &heightLineDefault,
+ NULL, NULL, font);
+ }
+
+ heightTextTotal += heightLineDefault;
+ }
+ else
+ {
+ DoGetTextExtent(curLine, &widthLine, &heightLine,
+ NULL, NULL, font);
+ if ( widthLine > widthTextMax )
+ widthTextMax = widthLine;
+ heightTextTotal += heightLine;
+ }
+
+ if ( pc == text.end() )
+ {
+ break;
+ }
+ else // '\n'
+ {
+ curLine.clear();
+ }
+ }
+ else
+ {
+ curLine += *pc;
+ }
+ }
+
+ if ( x )
+ *x = widthTextMax;
+ if ( y )
+ *y = heightTextTotal;
+ if ( h )
+ *h = heightLine;
+}
+
+void wxDCImpl::DoDrawCheckMark(wxCoord x1, wxCoord y1,
wxCoord width, wxCoord height)
{
- wxCHECK_RET( Ok(), wxT("invalid window dc") );
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
wxCoord x2 = x1 + width,
y2 = y1 + height;
- // this is to yield width of 3 for width == height == 10
- SetPen(wxPen(GetTextForeground(), (width + height + 1) / 7, wxSOLID));
+ // the pen width is calibrated to give 3 for width == height == 10
+ wxDCPenChanger pen( *m_owner, wxPen(GetTextForeground(), (width + height + 1)/7));
// we're drawing a scaled version of wx/generic/tick.xpm here
wxCoord x3 = x1 + (4*width) / 10, // x of the tick bottom
CalcBoundingBox(x2, y2);
}
-// ----------------------------------------------------------------------------
-// line/polygons
-// ----------------------------------------------------------------------------
+bool
+wxDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest,
+ wxCoord dstWidth, wxCoord dstHeight,
+ wxDC *source,
+ wxCoord xsrc, wxCoord ysrc,
+ wxCoord srcWidth, wxCoord srcHeight,
+ int rop,
+ bool useMask,
+ wxCoord xsrcMask,
+ wxCoord ysrcMask)
+{
+ wxCHECK_MSG( srcWidth && srcHeight && dstWidth && dstHeight, false,
+ _T("invalid blit size") );
+
+ // emulate the stretching by modifying the DC scale
+ double xscale = (double)srcWidth/dstWidth,
+ yscale = (double)srcHeight/dstHeight;
+
+ double xscaleOld, yscaleOld;
+ GetUserScale(&xscaleOld, &yscaleOld);
+ SetUserScale(xscaleOld/xscale, yscaleOld/yscale);
+
+ bool rc = DoBlit(wxCoord(xdest*xscale), wxCoord(ydest*yscale),
+ wxCoord(dstWidth*xscale), wxCoord(dstHeight*yscale),
+ source,
+ xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
+
+ SetUserScale(xscaleOld, yscaleOld);
+
+ return rc;
+}
-void wxDCBase::DrawLines(const wxList *list, wxCoord xoffset, wxCoord yoffset)
+void wxDCImpl::DrawLines(const wxPointList *list, wxCoord xoffset, wxCoord yoffset)
{
int n = list->GetCount();
wxPoint *points = new wxPoint[n];
int i = 0;
- for ( wxList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ )
+ for ( wxPointList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ )
{
- wxPoint *point = (wxPoint *)node->GetData();
+ wxPoint *point = node->GetData();
points[i].x = point->x;
points[i].y = point->y;
}
delete [] points;
}
-
-void wxDCBase::DrawPolygon(const wxList *list,
+void wxDCImpl::DrawPolygon(const wxPointList *list,
wxCoord xoffset, wxCoord yoffset,
int fillStyle)
{
wxPoint *points = new wxPoint[n];
int i = 0;
- for ( wxList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ )
+ for ( wxPointList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ )
{
- wxPoint *point = (wxPoint *)node->GetData();
+ wxPoint *point = node->GetData();
points[i].x = point->x;
points[i].y = point->y;
}
delete [] points;
}
-// ----------------------------------------------------------------------------
-// splines
-// ----------------------------------------------------------------------------
+void
+wxDCImpl::DoDrawPolyPolygon(int n,
+ int count[],
+ wxPoint points[],
+ wxCoord xoffset, wxCoord yoffset,
+ int fillStyle)
+{
+ if ( n == 1 )
+ {
+ DoDrawPolygon(count[0], points, xoffset, yoffset, fillStyle);
+ return;
+ }
+
+ int i, j, lastOfs;
+ wxPoint* pts;
+ wxPen pen;
+
+ for (i = j = lastOfs = 0; i < n; i++)
+ {
+ lastOfs = j;
+ j += count[i];
+ }
+ pts = new wxPoint[j+n-1];
+ for (i = 0; i < j; i++)
+ pts[i] = points[i];
+ for (i = 2; i <= n; i++)
+ {
+ lastOfs -= count[n-i];
+ pts[j++] = pts[lastOfs];
+ }
+
+ pen = GetPen();
+ SetPen(wxPen(*wxBLACK, 0, wxTRANSPARENT));
+ DoDrawPolygon(j, pts, xoffset, yoffset, fillStyle);
+ SetPen(pen);
+ for (i = j = 0; i < n; i++)
+ {
+ DoDrawLines(count[i], pts+j, xoffset, yoffset);
+ j += count[i];
+ }
+ delete[] pts;
+}
#if wxUSE_SPLINES
-// TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?)
-void wxDCBase::DrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3)
+void wxDCImpl::DoDrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3)
{
- wxList point_list;
+ wxPointList point_list;
wxPoint *point1 = new wxPoint;
point1->x = x1; point1->y = y1;
- point_list.Append((wxObject*)point1);
+ point_list.Append( point1 );
wxPoint *point2 = new wxPoint;
point2->x = x2; point2->y = y2;
- point_list.Append((wxObject*)point2);
+ point_list.Append( point2 );
wxPoint *point3 = new wxPoint;
point3->x = x3; point3->y = y3;
- point_list.Append((wxObject*)point3);
+ point_list.Append( point3 );
- DrawSpline(&point_list);
+ DoDrawSpline(&point_list);
- for( wxList::compatibility_iterator node = point_list.GetFirst(); node; node = node->GetNext() )
+ for( wxPointList::compatibility_iterator node = point_list.GetFirst(); node; node = node->GetNext() )
{
- wxPoint *p = (wxPoint *)node->GetData();
+ wxPoint *p = node->GetData();
delete p;
}
}
-void wxDCBase::DrawSpline(int n, wxPoint points[])
+void wxDCImpl::DoDrawSpline(int n, wxPoint points[])
{
- wxList list;
+ wxPointList list;
for (int i =0; i < n; i++)
- {
- list.Append((wxObject*)&points[i]);
- }
+ list.Append( &points[i] );
- DrawSpline(&list);
+ DoDrawSpline(&list);
}
// ----------------------------------- spline code ----------------------------------------
void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3,
double x4, double y4);
static bool wx_spline_add_point(double x, double y);
-static void wx_spline_draw_point_array(wxDCBase *dc);
+static void wx_spline_draw_point_array(wxDC *dc);
-wxList wx_spline_point_list;
+wxPointList wx_spline_point_list;
#define half(z1, z2) ((z1+z2)/2.0)
#define THRESHOLD 5
static bool wx_spline_add_point(double x, double y)
{
- wxPoint *point = new wxPoint ;
- point->x = (int) x;
- point->y = (int) y;
- wx_spline_point_list.Append((wxObject*)point);
- return TRUE;
+ wxPoint *point = new wxPoint( wxRound(x), wxRound(y) );
+ wx_spline_point_list.Append(point );
+ return true;
}
-static void wx_spline_draw_point_array(wxDCBase *dc)
+static void wx_spline_draw_point_array(wxDC *dc)
{
- dc->DrawLines(&wx_spline_point_list, 0, 0 );
- wxList::compatibility_iterator node = wx_spline_point_list.GetFirst();
- while (node)
- {
- wxPoint *point = (wxPoint *)node->GetData();
- delete point;
- wx_spline_point_list.Erase(node);
- node = wx_spline_point_list.GetFirst();
- }
+ dc->DrawLines(&wx_spline_point_list, 0, 0 );
+ wxPointList::compatibility_iterator node = wx_spline_point_list.GetFirst();
+ while (node)
+ {
+ wxPoint *point = node->GetData();
+ delete point;
+ wx_spline_point_list.Erase(node);
+ node = wx_spline_point_list.GetFirst();
+ }
}
-void wxDCBase::DoDrawSpline( wxList *points )
+void wxDCImpl::DoDrawSpline( const wxPointList *points )
{
- wxCHECK_RET( Ok(), wxT("invalid window dc") );
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
wxPoint *p;
double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
double x1, y1, x2, y2;
- wxList::compatibility_iterator node = points->GetFirst();
+ wxPointList::compatibility_iterator node = points->GetFirst();
+ if (!node)
+ // empty list
+ return;
+
p = (wxPoint *)node->GetData();
x1 = p->x;
y1 = p->y;
node = node->GetNext();
- p = (wxPoint *)node->GetData();
+ p = node->GetData();
x2 = p->x;
y2 = p->y;
#endif // !wxUSE_STL
)
{
- p = (wxPoint *)node->GetData();
+ p = node->GetData();
x1 = x2;
y1 = y2;
x2 = p->x;
wx_spline_add_point( cx1, cy1 );
wx_spline_add_point( x2, y2 );
- wx_spline_draw_point_array( this );
+ wx_spline_draw_point_array( m_owner );
}
#endif // wxUSE_SPLINES
-// ----------------------------------------------------------------------------
-// enhanced text drawing
-// ----------------------------------------------------------------------------
-void wxDCBase::GetMultiLineTextExtent(const wxString& text,
- wxCoord *x,
- wxCoord *y,
- wxCoord *h,
- wxFont *font)
-{
- wxCoord widthTextMax = 0, widthLine,
- heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
- wxString curLine;
- for ( const wxChar *pc = text; ; pc++ )
+void wxDCImpl::DoGradientFillLinear(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ wxDirection nDirection)
+{
+ // save old pen
+ wxPen oldPen = m_pen;
+ wxBrush oldBrush = m_brush;
+
+ wxUint8 nR1 = initialColour.Red();
+ wxUint8 nG1 = initialColour.Green();
+ wxUint8 nB1 = initialColour.Blue();
+ wxUint8 nR2 = destColour.Red();
+ wxUint8 nG2 = destColour.Green();
+ wxUint8 nB2 = destColour.Blue();
+ wxUint8 nR, nG, nB;
+
+ if ( nDirection == wxEAST || nDirection == wxWEST )
{
- if ( *pc == _T('\n') || *pc == _T('\0') )
+ wxInt32 x = rect.GetWidth();
+ wxInt32 w = x; // width of area to shade
+ wxInt32 xDelta = w/256; // height of one shade bend
+ if (xDelta < 1)
+ xDelta = 1;
+
+ while (x >= xDelta)
{
- if ( curLine.empty() )
- {
- // we can't use GetTextExtent - it will return 0 for both width
- // and height and an empty line should count in height
- // calculation
+ x -= xDelta;
+ if (nR1 > nR2)
+ nR = nR1 - (nR1-nR2)*(w-x)/w;
+ else
+ nR = nR1 + (nR2-nR1)*(w-x)/w;
- // assume that this line has the same height as the previous
- // one
- if ( !heightLineDefault )
- heightLineDefault = heightLine;
+ if (nG1 > nG2)
+ nG = nG1 - (nG1-nG2)*(w-x)/w;
+ else
+ nG = nG1 + (nG2-nG1)*(w-x)/w;
- if ( !heightLineDefault )
- {
- // but we don't know it yet - choose something reasonable
- GetTextExtent(_T("W"), NULL, &heightLineDefault,
- NULL, NULL, font);
- }
+ if (nB1 > nB2)
+ nB = nB1 - (nB1-nB2)*(w-x)/w;
+ else
+ nB = nB1 + (nB2-nB1)*(w-x)/w;
+
+ wxColour colour(nR,nG,nB);
+ SetPen(wxPen(colour, 1, wxSOLID));
+ SetBrush(wxBrush(colour));
+ if(nDirection == wxEAST)
+ DoDrawRectangle(rect.GetRight()-x-xDelta+1, rect.GetTop(),
+ xDelta, rect.GetHeight());
+ else //nDirection == wxWEST
+ DoDrawRectangle(rect.GetLeft()+x, rect.GetTop(),
+ xDelta, rect.GetHeight());
+ }
+ }
+ else // nDirection == wxNORTH || nDirection == wxSOUTH
+ {
+ wxInt32 y = rect.GetHeight();
+ wxInt32 w = y; // height of area to shade
+ wxInt32 yDelta = w/255; // height of one shade bend
+ if (yDelta < 1)
+ yDelta = 1;
- heightTextTotal += heightLineDefault;
- }
+ while (y > 0)
+ {
+ y -= yDelta;
+ if (nR1 > nR2)
+ nR = nR1 - (nR1-nR2)*(w-y)/w;
else
- {
- GetTextExtent(curLine, &widthLine, &heightLine,
- NULL, NULL, font);
- if ( widthLine > widthTextMax )
- widthTextMax = widthLine;
- heightTextTotal += heightLine;
- }
+ nR = nR1 + (nR2-nR1)*(w-y)/w;
- if ( *pc == _T('\n') )
- {
- curLine.clear();
- }
+ if (nG1 > nG2)
+ nG = nG1 - (nG1-nG2)*(w-y)/w;
else
- {
- // the end of string
- break;
- }
+ nG = nG1 + (nG2-nG1)*(w-y)/w;
+
+ if (nB1 > nB2)
+ nB = nB1 - (nB1-nB2)*(w-y)/w;
+ else
+ nB = nB1 + (nB2-nB1)*(w-y)/w;
+
+ wxColour colour(nR,nG,nB);
+ SetPen(wxPen(colour, 1, wxSOLID));
+ SetBrush(wxBrush(colour));
+ if(nDirection == wxNORTH)
+ DoDrawRectangle(rect.GetLeft(), rect.GetTop()+y,
+ rect.GetWidth(), yDelta);
+ else //nDirection == wxSOUTH
+ DoDrawRectangle(rect.GetLeft(), rect.GetBottom()-y-yDelta+1,
+ rect.GetWidth(), yDelta);
}
- else
+ }
+
+ SetPen(oldPen);
+ SetBrush(oldBrush);
+}
+
+void wxDCImpl::DoGradientFillConcentric(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ const wxPoint& circleCenter)
+{
+ //save the old pen color
+ wxColour oldPenColour = m_pen.GetColour();
+
+ wxUint8 nR1 = destColour.Red();
+ wxUint8 nG1 = destColour.Green();
+ wxUint8 nB1 = destColour.Blue();
+ wxUint8 nR2 = initialColour.Red();
+ wxUint8 nG2 = initialColour.Green();
+ wxUint8 nB2 = initialColour.Blue();
+ wxUint8 nR, nG, nB;
+
+
+ //Radius
+ wxInt32 cx = rect.GetWidth() / 2;
+ wxInt32 cy = rect.GetHeight() / 2;
+ wxInt32 nRadius;
+ if (cx < cy)
+ nRadius = cx;
+ else
+ nRadius = cy;
+
+ //Offset of circle
+ wxInt32 nCircleOffX = circleCenter.x - (rect.GetWidth() / 2);
+ wxInt32 nCircleOffY = circleCenter.y - (rect.GetHeight() / 2);
+
+ for ( wxInt32 x = 0; x < rect.GetWidth(); x++ )
+ {
+ for ( wxInt32 y = 0; y < rect.GetHeight(); y++ )
{
- curLine += *pc;
+ //get color difference
+ wxInt32 nGradient = ((nRadius -
+ (wxInt32)sqrt(
+ pow((double)(x - cx - nCircleOffX), 2) +
+ pow((double)(y - cy - nCircleOffY), 2)
+ )) * 100) / nRadius;
+
+ //normalize Gradient
+ if (nGradient < 0 )
+ nGradient = 0;
+
+ //get dest colors
+ nR = (wxUint8)(nR1 + ((nR2 - nR1) * nGradient / 100));
+ nG = (wxUint8)(nG1 + ((nG2 - nG1) * nGradient / 100));
+ nB = (wxUint8)(nB1 + ((nB2 - nB1) * nGradient / 100));
+
+ //set the pixel
+ m_pen.SetColour(wxColour(nR,nG,nB));
+ DoDrawPoint(x + rect.GetLeft(), y + rect.GetTop());
}
}
-
- if ( x )
- *x = widthTextMax;
- if ( y )
- *y = heightTextTotal;
- if ( h )
- *h = heightLine;
+ //return old pen color
+ m_pen.SetColour(oldPenColour);
}
-void wxDCBase::DrawLabel(const wxString& text,
+//-----------------------------------------------------------------------------
+// wxDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
+
+void wxDC::DrawLabel(const wxString& text,
const wxBitmap& bitmap,
const wxRect& rect,
int alignment,
width0 = width;
if ( bitmap.Ok() )
{
- DrawBitmap(bitmap, x, y, TRUE /* use mask */);
+ DrawBitmap(bitmap, x, y, true /* use mask */);
wxCoord offset = bitmap.GetWidth() + 4;
x += offset;
// split the string into lines and draw each of them separately
wxString curLine;
- for ( const wxChar *pc = text; ; pc++ )
+ for ( wxString::const_iterator pc = text.begin(); ; ++pc )
{
- if ( *pc == _T('\n') || *pc == _T('\0') )
+ if ( *pc == _T('\n') || pc == text.end() )
{
int xRealStart = x; // init it here to avoid compielr warnings
endUnderscore += xRealStart;
}
- if ( *pc == _T('\0') )
+ if ( pc == text.end() )
break;
curLine.clear();
}
else // not end of line
{
- if ( pc - text.c_str() == indexAccel )
+ if ( pc - text.begin() == indexAccel )
{
// remeber to draw underscore here
GetTextExtent(curLine, &startUnderscore, NULL);
CalcBoundingBox(x0 + width0, y0 + height);
}
-/*
-Notes for wxWindows DrawEllipticArcRot(...)
-
-wxDCBase::DrawEllipticArcRot(...) draws a rotated elliptic arc or an ellipse.
-It uses wxDCBase::CalculateEllipticPoints(...) and wxDCBase::Rotate(...),
-which are also new.
-
-All methods are generic, so they can be implemented in wxDCBase.
-DoDrawEllipticArcRot(...) is virtual, so it can be called from deeper
-methods like (WinCE) wxDC::DoDrawArc(...).
-
-CalculateEllipticPoints(...) fills a given list of wxPoints with some points
-of an elliptic arc. The algorithm is pixel-based: In every row (in flat
-parts) or every column (in steep parts) only one pixel is calculated.
-Trigonometric calculation (sin, cos, tan, atan) is only done if the
-starting angle is not equal to the ending angle. The calculation of the
-pixels is done using simple arithmetic only and should perform not too
-bad even on devices without floating point processor. I didn't test this yet.
-
-Rotate(...) rotates a list of point pixel-based, you will see rounding errors.
-For instance: an ellipse rotated 180 degrees is drawn
-slightly different from the original.
-
-The points are then moved to an array and used to draw a polyline and/or polygon
-(with center added, the pie).
-The result looks quite similar to the native ellipse, only e few pixels differ.
-
-The performance on a desktop system (Athlon 1800, WinXP) is about 7 times
-slower as DrawEllipse(...), which calls the native API.
-An rotated ellipse outside the clipping region takes nearly the same time,
-while an native ellipse outside takes nearly no time to draw.
-
-If you draw an arc with this new method, you will see the starting and ending angles
-are calculated properly.
-If you use DrawEllipticArc(...), you will see they are only correct for circles
-and not properly calculated for ellipses.
-
-Peter Lenhard
-p.lenhard@t-online.de
-*/
-
-#ifdef __WXWINCE__
-void wxDCBase::DoDrawEllipticArcRot( wxCoord x, wxCoord y,
- wxCoord w, wxCoord h,
- double sa, double ea, double angle )
-{
- wxList list;
-
- CalculateEllipticPoints( &list, x, y, w, h, sa, ea );
- Rotate( &list, angle, wxPoint( x+w/2, y+h/2 ) );
-
- // Add center (for polygon/pie)
- list.Append( (wxObject*) new wxPoint( x+w/2, y+h/2 ) );
-
- // copy list into array and delete list elements
- int n = list.Number();
- wxPoint *points = new wxPoint[n];
- int i = 0;
- wxNode* node = 0;
- for ( node = list.First(); node; node = node->Next(), i++ )
+#if WXWIN_COMPATIBILITY_2_8
+ // for compatibility with the old code when wxCoord was long everywhere
+void wxDC::GetTextExtent(const wxString& string,
+ long *x, long *y,
+ long *descent,
+ long *externalLeading,
+ const wxFont *theFont) const
{
- wxPoint *point = (wxPoint *)node->Data();
- points[i].x = point->x;
- points[i].y = point->y;
- delete point;
+ wxCoord x2, y2, descent2, externalLeading2;
+ m_pimpl->DoGetTextExtent(string, &x2, &y2,
+ &descent2, &externalLeading2,
+ theFont);
+ if ( x )
+ *x = x2;
+ if ( y )
+ *y = y2;
+ if ( descent )
+ *descent = descent2;
+ if ( externalLeading )
+ *externalLeading = externalLeading2;
}
- // first draw the pie without pen, if necessary
- if( GetBrush() != *wxTRANSPARENT_BRUSH )
+void wxDC::GetLogicalOrigin(long *x, long *y) const
{
- wxPen tempPen( GetPen() );
- SetPen( *wxTRANSPARENT_PEN );
- DoDrawPolygon( n, points, 0, 0 );
- SetPen( tempPen );
+ wxCoord x2, y2;
+ m_pimpl->DoGetLogicalOrigin(&x2, &y2);
+ if ( x )
+ *x = x2;
+ if ( y )
+ *y = y2;
}
- // then draw the arc without brush, if necessary
- if( GetPen() != *wxTRANSPARENT_PEN )
+void wxDC::GetDeviceOrigin(long *x, long *y) const
{
- // without center
- DoDrawLines( n-1, points, 0, 0 );
+ wxCoord x2, y2;
+ m_pimpl->DoGetDeviceOrigin(&x2, &y2);
+ if ( x )
+ *x = x2;
+ if ( y )
+ *y = y2;
}
- delete [] points;
-
-} // DrawEllipticArcRot
-
-void wxDCBase::Rotate( wxList* points, double angle, wxPoint center )
-{
- if( angle != 0.0 )
+void wxDC::GetClippingBox(long *x, long *y, long *w, long *h) const
{
- double pi(3.1415926536);
- double dSinA = -sin(angle*2.0*pi/360.0);
- double dCosA = cos(angle*2.0*pi/360.0);
- for ( wxNode* node = points->First(); node; node = node->Next() )
- {
- wxPoint* point = (wxPoint*)node->Data();
-
- // transform coordinates, if necessary
- if( center.x ) point->x -= center.x;
- if( center.y ) point->y -= center.y;
-
- // calculate rotation, rounding simply by implicit cast to integer
- int xTemp = point->x * dCosA - point->y * dSinA;
- point->y = point->x * dSinA + point->y * dCosA;
- point->x = xTemp;
-
- // back transform coordinates, if necessary
- if( center.x ) point->x += center.x;
- if( center.y ) point->y += center.y;
- }
+ wxCoord xx,yy,ww,hh;
+ m_pimpl->DoGetClippingBox(&xx, &yy, &ww, &hh);
+ if (x) *x = xx;
+ if (y) *y = yy;
+ if (w) *w = ww;
+ if (h) *h = hh;
}
-}
-
-void wxDCBase::CalculateEllipticPoints( wxList* points,
- wxCoord xStart, wxCoord yStart,
- wxCoord w, wxCoord h,
- double sa, double ea )
-{
- double pi = 3.1415926535;
- double sar = 0;
- double ear = 0;
- int xsa = 0;
- int ysa = 0;
- int xea = 0;
- int yea = 0;
- int sq = 0;
- int eq = 0;
- bool bUseAngles = false;
- if( w<0 ) w = -w;
- if( h<0 ) h = -h;
- // half-axes
- wxCoord a = w/2;
- wxCoord b = h/2;
- // decrement 1 pixel if ellipse is smaller than 2*a, 2*b
- int decrX = 0;
- if( 2*a == w ) decrX = 1;
- int decrY = 0;
- if( 2*b == h ) decrY = 1;
- // center
- wxCoord xCenter = xStart + a;
- wxCoord yCenter = yStart + b;
- // calculate data for start and end, if necessary
- if( sa != ea )
- {
- bUseAngles = true;
- // normalisation of angles
- while( sa<0 ) sa += 360;
- while( ea<0 ) ea += 360;
- while( sa>=360 ) sa -= 360;
- while( ea>=360 ) ea -= 360;
- // calculate quadrant numbers
- if( sa > 270 ) sq = 3;
- else if( sa > 180 ) sq = 2;
- else if( sa > 90 ) sq = 1;
- if( ea > 270 ) eq = 3;
- else if( ea > 180 ) eq = 2;
- else if( ea > 90 ) eq = 1;
- sar = sa * pi / 180.0;
- ear = ea * pi / 180.0;
- // correct angle circle -> ellipse
- sar = atan( -a/(double)b * tan( sar ) );
- if ( sq == 1 || sq == 2 ) sar += pi;
- ear = atan( -a/(double)b * tan( ear ) );
- if ( eq == 1 || eq == 2 ) ear += pi;
- // coordinates of points
- xsa = xCenter + a * cos( sar );
- if( sq == 0 || sq == 3 ) xsa -= decrX;
- ysa = yCenter + b * sin( sar );
- if( sq == 2 || sq == 3 ) ysa -= decrY;
- xea = xCenter + a * cos( ear );
- if( eq == 0 || eq == 3 ) xea -= decrX;
- yea = yCenter + b * sin( ear );
- if( eq == 2 || eq == 3 ) yea -= decrY;
- } // if iUseAngles
- // calculate c1 = b^2, c2 = b^2/a^2 with a = w/2, b = h/2
- double c1 = b * b;
- double c2 = 2.0 / w;
- c2 *= c2;
- c2 *= c1;
- wxCoord x = 0;
- wxCoord y = b;
- long x2 = 1;
- long y2 = y*y;
- long y2_old = 0;
- long y_old = 0;
- // Lists for quadrant 1 to 4
- wxList pointsarray[4];
- // Calculate points for first quadrant and set in all quadrants
- for( x = 0; x <= a; ++x )
- {
- x2 = x2+x+x-1;
- y2_old = y2;
- y_old = y;
- bool bNewPoint = false;
- while( y2 > c1 - c2 * x2 && y > 0 )
- {
- bNewPoint = true;
- y2 = y2-y-y+1;
- --y;
- }
- // old y now to big: set point with old y, old x
- if( bNewPoint && x>1)
- {
- int x1 = x - 1;
- // remove points on the same line
- pointsarray[0].Insert( (wxObject*) new wxPoint( xCenter + x1 - decrX, yCenter - y_old ) );
- pointsarray[1].Append( (wxObject*) new wxPoint( xCenter - x1, yCenter - y_old ) );
- pointsarray[2].Insert( (wxObject*) new wxPoint( xCenter - x1, yCenter + y_old - decrY ) );
- pointsarray[3].Append( (wxObject*) new wxPoint( xCenter + x1 - decrX, yCenter + y_old - decrY ) );
- } // set point
- } // calculate point
-
- // Starting and/or ending points for the quadrants, first quadrant gets both.
- pointsarray[0].Insert( (wxObject*) new wxPoint( xCenter + a - decrX, yCenter ) );
- pointsarray[0].Append( (wxObject*) new wxPoint( xCenter, yCenter - b ) );
- pointsarray[1].Append( (wxObject*) new wxPoint( xCenter - a, yCenter ) );
- pointsarray[2].Append( (wxObject*) new wxPoint( xCenter, yCenter + b - decrY ) );
- pointsarray[3].Append( (wxObject*) new wxPoint( xCenter + a - decrX, yCenter ) );
-
- // copy quadrants in original list
- if( bUseAngles )
- {
- // Copy the right part of the points in the lists
- // and delete the wxPoints, because they do not leave this method.
- points->Append( (wxObject*) new wxPoint( xsa, ysa ) );
- int q = sq;
- bool bStarted = false;
- bool bReady = false;
- bool bForceTurn = ( sq == eq && sa > ea );
- while( !bReady )
- {
- for( wxNode *node = pointsarray[q].First(); node; node = node->Next() )
- {
- // once: go to starting point in start quadrant
- if( !bStarted &&
- (
- ( (wxPoint*) node->Data() )->x < xsa+1 && q <= 1
- ||
- ( (wxPoint*) node->Data() )->x > xsa-1 && q >= 2
- )
- )
- {
- bStarted = true;
- }
-
- // copy point, if not at ending point
- if( bStarted )
- {
- if( q != eq || bForceTurn
- ||
- ( (wxPoint*) node->Data() )->x > xea+1 && q <= 1
- ||
- ( (wxPoint*) node->Data() )->x < xea-1 && q >= 2
- )
- {
- // copy point
- wxPoint* pPoint = new wxPoint( *((wxPoint*) node->Data() ) );
- points->Append( (wxObject*) pPoint );
- }
- else if( q == eq && !bForceTurn || ( (wxPoint*) node->Data() )->x == xea)
- {
- bReady = true;
- }
- }
- } // for node
- ++q;
- if( q > 3 ) q = 0;
- bForceTurn = false;
- bStarted = true;
- } // while not bReady
- points->Append( (wxObject*) new wxPoint( xea, yea ) );
-
- // delete points
- for( q = 0; q < 4; ++q )
- {
- for( wxNode *node = pointsarray[q].First(); node; node = node->Next() )
- {
- wxPoint *p = (wxPoint *)node->Data();
- delete p;
- }
- }
-
- }
- else
- {
- // copy whole ellipse, wxPoints will be deleted outside
- for( wxNode *node = pointsarray[0].First(); node; node = node->Next() )
- {
- wxObject *p = node->Data();
- points->Append( p );
- }
- for( node = pointsarray[1].First(); node; node = node->Next() )
- {
- wxObject *p = node->Data();
- points->Append( p );
- }
- for( node = pointsarray[2].First(); node; node = node->Next() )
- {
- wxObject *p = node->Data();
- points->Append( p );
- }
- for( node = pointsarray[3].First(); node; node = node->Next() )
- {
- wxObject *p = node->Data();
- points->Append( p );
- }
- } // not iUseAngles
-} // CalculateEllipticPoints
-
-#endif
+#endif // WXWIN_COMPATIBILITY_2_8
projects / wxWidgets.git / blobdiff