#endif
#include "wx/dc.h"
-#include "wx/dcbuffer.h" // for IMPLEMENT_DYNAMIC_CLASS
+#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
-// bool wxDCBase::sm_cacheing = false;
+#ifdef __WXMSW__
+ #include "wx/msw/dcclient.h"
+ #include "wx/msw/dcmemory.h"
+ #include "wx/msw/dcscreen.h"
+#endif
-IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
+#ifdef __WXGTK__
+ #include "wx/gtk/dcclient.h"
+ #include "wx/gtk/dcmemory.h"
+ #include "wx/gtk/dcscreen.h"
+#endif
-// ============================================================================
-// implementation
-// ============================================================================
+#ifdef __WXMAC__
+ #include "wx/mac/dcclient.h"
+ #include "wx/mac/dcmemory.h"
+ #include "wx/mac/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_DYNAMIC_CLASS(wxBufferedDC, wxMemoryDC)
-IMPLEMENT_ABSTRACT_CLASS(wxBufferedPaintDC, wxBufferedDC)
+IMPLEMENT_ABSTRACT_CLASS(wxDCImpl, wxObject)
-wxDCBase::wxDCBase()
- : m_colour(wxColourDisplay())
+wxDCImpl::wxDCImpl( wxDC *owner )
+ : m_window(NULL)
+ , m_colour(wxColourDisplay())
, m_ok(true)
, m_clipping(false)
, m_isInteractive(0)
, 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();
}
-wxDCBase::~wxDCBase()
-{
-}
-
-#if WXWIN_COMPATIBILITY_2_6
-void wxDCBase::BeginDrawing()
-{
-}
-
-void wxDCBase::EndDrawing()
+wxDCImpl::~wxDCImpl()
{
}
-#endif // WXWIN_COMPATIBILITY_2_6
// ----------------------------------------------------------------------------
// coordinate conversions and transforms
// ----------------------------------------------------------------------------
-wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
+wxCoord wxDCImpl::DeviceToLogicalX(wxCoord x) const
{
return wxRound((double)(x - m_deviceOriginX - m_deviceLocalOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
}
-wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
+wxCoord wxDCImpl::DeviceToLogicalY(wxCoord y) const
{
return wxRound((double)(y - m_deviceOriginY - m_deviceLocalOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
}
-wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
+wxCoord wxDCImpl::DeviceToLogicalXRel(wxCoord x) const
{
return wxRound((double)(x) / m_scaleX);
}
-wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
+wxCoord wxDCImpl::DeviceToLogicalYRel(wxCoord y) const
{
return wxRound((double)(y) / m_scaleY);
}
-wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
+wxCoord wxDCImpl::LogicalToDeviceX(wxCoord x) const
{
- return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX + m_deviceLocalOriginX;
+ return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX * m_signY + m_deviceLocalOriginX;
}
-wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
+wxCoord wxDCImpl::LogicalToDeviceY(wxCoord y) const
{
- return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY + m_deviceLocalOriginY;
+ return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY * m_signY + m_deviceLocalOriginY;
}
-wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
+wxCoord wxDCImpl::LogicalToDeviceXRel(wxCoord x) const
{
return wxRound((double)(x) * m_scaleX);
}
-wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
+wxCoord wxDCImpl::LogicalToDeviceYRel(wxCoord y) const
{
return wxRound((double)(y) * m_scaleY);
}
-void wxDCBase::ComputeScaleAndOrigin()
+void wxDCImpl::ComputeScaleAndOrigin()
{
m_scaleX = m_logicalScaleX * m_userScaleX;
m_scaleY = m_logicalScaleY * m_userScaleY;
}
-void wxDCBase::SetMapMode( int mode )
+void wxDCImpl::SetMapMode( int mode )
{
switch (mode)
{
m_mappingMode = mode;
}
-void wxDCBase::SetUserScale( double x, double y )
+void wxDCImpl::SetUserScale( double x, double y )
{
// allow negative ? -> no
m_userScaleX = x;
ComputeScaleAndOrigin();
}
-void wxDCBase::SetLogicalScale( double x, double y )
+void wxDCImpl::SetLogicalScale( double x, double y )
{
// allow negative ?
m_logicalScaleX = x;
ComputeScaleAndOrigin();
}
-void wxDCBase::SetLogicalOrigin( wxCoord x, wxCoord y )
+void wxDCImpl::SetLogicalOrigin( wxCoord x, wxCoord y )
{
m_logicalOriginX = x * m_signX;
m_logicalOriginY = y * m_signY;
ComputeScaleAndOrigin();
}
-void wxDCBase::SetDeviceOrigin( wxCoord x, wxCoord y )
+void wxDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y )
{
m_deviceOriginX = x;
m_deviceOriginY = y;
ComputeScaleAndOrigin();
}
-void wxDCBase::SetDeviceLocalOrigin( wxCoord x, wxCoord y )
+void wxDCImpl::SetDeviceLocalOrigin( wxCoord x, wxCoord y )
{
m_deviceLocalOriginX = x;
m_deviceLocalOriginY = y;
ComputeScaleAndOrigin();
}
-void wxDCBase::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
+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();
}
-// ----------------------------------------------------------------------------
-// special symbols
-// ----------------------------------------------------------------------------
-void wxDCBase::DoDrawCheckMark(wxCoord x1, wxCoord y1,
- wxCoord width, wxCoord height)
-{
- wxCHECK_RET( Ok(), wxT("invalid window dc") );
+// 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!!
- wxCoord x2 = x1 + width,
- y2 = y1 + height;
+#define FWC_SIZE 256
- // the pen width is calibrated to give 3 for width == height == 10
- wxDCPenChanger pen((wxDC&)*this,
- wxPen(GetTextForeground(), (width + height + 1)/7));
+class FontWidthCache
+{
+public:
+ FontWidthCache() : m_scaleX(1), m_widths(NULL) { }
+ ~FontWidthCache() { delete []m_widths; }
- // we're drawing a scaled version of wx/generic/tick.xpm here
- wxCoord x3 = x1 + (4*width) / 10, // x of the tick bottom
- y3 = y1 + height / 2; // y of the left tick branch
- DoDrawLine(x1, y3, x3, y2);
- DoDrawLine(x3, y2, x2, y1);
+ void Reset()
+ {
+ if (!m_widths)
+ m_widths = new int[FWC_SIZE];
- CalcBoundingBox(x1, y1);
- CalcBoundingBox(x2, y2);
-}
+ memset(m_widths, 0, sizeof(int)*FWC_SIZE);
+ }
-// ----------------------------------------------------------------------------
-// stubs for functions not implemented in all ports
-// ----------------------------------------------------------------------------
+ wxFont m_font;
+ double m_scaleX;
+ int *m_widths;
+};
-bool
-wxDCBase::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)
+static FontWidthCache s_fontWidthCache;
+
+bool wxDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
{
- wxCHECK_MSG( srcWidth && srcHeight && dstWidth && dstHeight, false,
- _T("invalid blit size") );
+ int totalWidth = 0;
- // emulate the stretching by modifying the DC scale
- double xscale = (double)srcWidth/dstWidth,
- yscale = (double)srcHeight/dstHeight;
+ const size_t len = text.length();
+ widths.Empty();
+ widths.Add(0, len);
- double xscaleOld, yscaleOld;
- GetUserScale(&xscaleOld, &yscaleOld);
- SetUserScale(xscaleOld/xscale, yscaleOld/yscale);
+ // 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;
+ }
- bool rc = DoBlit(wxCoord(xdest*xscale), wxCoord(ydest*yscale),
- wxCoord(dstWidth*xscale), wxCoord(dstHeight*yscale),
- source,
- xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
+ // 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;
- SetUserScale(xscaleOld, yscaleOld);
+ 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;
+ }
- return rc;
-}
+ totalWidth += w;
+ widths[i] = totalWidth;
+ }
-// ----------------------------------------------------------------------------
-// line/polygons
-// ----------------------------------------------------------------------------
+ return true;
+}
-void wxDCBase::DrawLines(const wxList *list, wxCoord xoffset, wxCoord yoffset)
+void wxDCImpl::GetMultiLineTextExtent(const wxString& text,
+ wxCoord *x,
+ wxCoord *y,
+ wxCoord *h,
+ const wxFont *font) const
{
- int n = list->GetCount();
- wxPoint *points = new wxPoint[n];
+ wxCoord widthTextMax = 0, widthLine,
+ heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
- int i = 0;
- for ( wxList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ )
+ wxString curLine;
+ for ( wxString::const_iterator pc = text.begin(); ; ++pc )
{
- wxPoint *point = (wxPoint *)node->GetData();
- points[i].x = point->x;
- points[i].y = point->y;
- }
+ 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( IsOk(), wxT("invalid window dc") );
+
+ wxCoord x2 = x1 + width,
+ y2 = y1 + height;
+
+ // 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
+ y3 = y1 + height / 2; // y of the left tick branch
+ DoDrawLine(x1, y3, x3, y2);
+ DoDrawLine(x3, y2, x2, y1);
+
+ CalcBoundingBox(x1, y1);
+ CalcBoundingBox(x2, y2);
+}
+
+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 wxDCImpl::DrawLines(const wxPointList *list, wxCoord xoffset, wxCoord yoffset)
+{
+ int n = list->GetCount();
+ wxPoint *points = new wxPoint[n];
+
+ int i = 0;
+ for ( wxPointList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ )
+ {
+ wxPoint *point = node->GetData();
+ points[i].x = point->x;
+ points[i].y = point->y;
+ }
DoDrawLines(n, points, xoffset, yoffset);
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;
}
}
void
-wxDCBase::DoDrawPolyPolygon(int n,
+wxDCImpl::DoDrawPolyPolygon(int n,
int count[],
wxPoint points[],
wxCoord xoffset, wxCoord yoffset,
delete[] pts;
}
-// ----------------------------------------------------------------------------
-// splines
-// ----------------------------------------------------------------------------
-
#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;
-}
-
-static void wx_spline_draw_point_array(wxDCBase *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();
- }
-}
-
-void wxDCBase::DoDrawSpline( wxList *points )
-{
- wxCHECK_RET( Ok(), 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();
- if (!node)
- // empty list
- return;
-
- p = (wxPoint *)node->GetData();
-
- x1 = p->x;
- y1 = p->y;
-
- node = node->GetNext();
- p = (wxPoint *)node->GetData();
-
- x2 = p->x;
- y2 = p->y;
- cx1 = (double)((x1 + x2) / 2);
- cy1 = (double)((y1 + y2) / 2);
- cx2 = (double)((cx1 + x2) / 2);
- cy2 = (double)((cy1 + y2) / 2);
-
- wx_spline_add_point(x1, y1);
-
- while ((node = node->GetNext())
-#if !wxUSE_STL
- != NULL
-#endif // !wxUSE_STL
- )
- {
- p = (wxPoint *)node->GetData();
- x1 = x2;
- y1 = y2;
- x2 = p->x;
- y2 = p->y;
- cx4 = (double)(x1 + x2) / 2;
- cy4 = (double)(y1 + y2) / 2;
- cx3 = (double)(x1 + cx4) / 2;
- cy3 = (double)(y1 + cy4) / 2;
-
- wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
-
- cx1 = cx4;
- cy1 = cy4;
- cx2 = (double)(cx1 + x2) / 2;
- cy2 = (double)(cy1 + y2) / 2;
- }
-
- wx_spline_add_point( cx1, cy1 );
- wx_spline_add_point( x2, y2 );
-
- wx_spline_draw_point_array( this );
-}
-
-#endif // wxUSE_SPLINES
-
-// ----------------------------------------------------------------------------
-// Partial Text Extents
-// ----------------------------------------------------------------------------
-
-
-// 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 wxDCBase::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
- {
- GetTextExtent(c, &w, &h);
- if (c_int < FWC_SIZE)
- s_fontWidthCache.m_widths[c_int] = w;
- }
-
- totalWidth += w;
- widths[i] = totalWidth;
- }
-
+ wxPoint *point = new wxPoint( wxRound(x), wxRound(y) );
+ wx_spline_point_list.Append(point );
return true;
}
-
-// ----------------------------------------------------------------------------
-// enhanced text drawing
-// ----------------------------------------------------------------------------
-
-void wxDCBase::GetMultiLineTextExtent(const wxString& text,
- wxCoord *x,
- wxCoord *y,
- wxCoord *h,
- const wxFont *font) const
+static void wx_spline_draw_point_array(wxDC *dc)
{
- wxCoord widthTextMax = 0, widthLine,
- heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
-
- wxString curLine;
- for ( const wxChar *pc = text; ; pc++ )
+ dc->DrawLines(&wx_spline_point_list, 0, 0 );
+ wxPointList::compatibility_iterator node = wx_spline_point_list.GetFirst();
+ while (node)
{
- if ( *pc == _T('\n') || *pc == _T('\0') )
- {
- 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
- GetTextExtent(_T("W"), NULL, &heightLineDefault,
- NULL, NULL, font);
- }
-
- heightTextTotal += heightLineDefault;
- }
- else
- {
- GetTextExtent(curLine, &widthLine, &heightLine,
- NULL, NULL, font);
- if ( widthLine > widthTextMax )
- widthTextMax = widthLine;
- heightTextTotal += heightLine;
- }
-
- if ( *pc == _T('\n') )
- {
- curLine.clear();
- }
- else
- {
- // the end of string
- break;
- }
- }
- else
- {
- curLine += *pc;
- }
+ wxPoint *point = node->GetData();
+ delete point;
+ wx_spline_point_list.Erase(node);
+ node = wx_spline_point_list.GetFirst();
}
-
- if ( x )
- *x = widthTextMax;
- if ( y )
- *y = heightTextTotal;
- if ( h )
- *h = heightLine;
}
-void wxDCBase::DrawLabel(const wxString& text,
- const wxBitmap& bitmap,
- const wxRect& rect,
- int alignment,
- int indexAccel,
- wxRect *rectBounding)
+void wxDCImpl::DoDrawSpline( const wxPointList *points )
{
- // find the text position
- wxCoord widthText, heightText, heightLine;
- GetMultiLineTextExtent(text, &widthText, &heightText, &heightLine);
-
- wxCoord width, height;
- if ( bitmap.Ok() )
- {
- width = widthText + bitmap.GetWidth();
- height = bitmap.GetHeight();
- }
- else // no bitmap
- {
- width = widthText;
- height = heightText;
- }
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
- wxCoord x, y;
- if ( alignment & wxALIGN_RIGHT )
- {
- x = rect.GetRight() - width;
- }
- else if ( alignment & wxALIGN_CENTRE_HORIZONTAL )
- {
- x = (rect.GetLeft() + rect.GetRight() + 1 - width) / 2;
- }
- else // alignment & wxALIGN_LEFT
- {
- x = rect.GetLeft();
- }
-
- if ( alignment & wxALIGN_BOTTOM )
- {
- y = rect.GetBottom() - height;
- }
- else if ( alignment & wxALIGN_CENTRE_VERTICAL )
- {
- y = (rect.GetTop() + rect.GetBottom() + 1 - height) / 2;
- }
- else // alignment & wxALIGN_TOP
- {
- y = rect.GetTop();
- }
-
- // draw the bitmap first
- wxCoord x0 = x,
- y0 = y,
- width0 = width;
- if ( bitmap.Ok() )
- {
- DrawBitmap(bitmap, x, y, true /* use mask */);
-
- wxCoord offset = bitmap.GetWidth() + 4;
- x += offset;
- width -= offset;
-
- y += (height - heightText) / 2;
- }
-
- // we will draw the underscore under the accel char later
- wxCoord startUnderscore = 0,
- endUnderscore = 0,
- yUnderscore = 0;
-
- // split the string into lines and draw each of them separately
- wxString curLine;
- for ( wxString::const_iterator pc = text.begin(); ; ++pc )
- {
- if ( *pc == _T('\n') || pc == text.end() )
- {
- int xRealStart = x; // init it here to avoid compielr warnings
-
- if ( !curLine.empty() )
- {
- // NB: can't test for !(alignment & wxALIGN_LEFT) because
- // wxALIGN_LEFT is 0
- if ( alignment & (wxALIGN_RIGHT | wxALIGN_CENTRE_HORIZONTAL) )
- {
- wxCoord widthLine;
- GetTextExtent(curLine, &widthLine, NULL);
-
- if ( alignment & wxALIGN_RIGHT )
- {
- xRealStart += width - widthLine;
- }
- else // if ( alignment & wxALIGN_CENTRE_HORIZONTAL )
- {
- xRealStart += (width - widthLine) / 2;
- }
- }
- //else: left aligned, nothing to do
+ wxPoint *p;
+ double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
+ double x1, y1, x2, y2;
- DrawText(curLine, xRealStart, y);
- }
+ wxPointList::compatibility_iterator node = points->GetFirst();
+ if (!node)
+ // empty list
+ return;
- y += heightLine;
+ p = (wxPoint *)node->GetData();
- // do we have underscore in this line? we can check yUnderscore
- // because it is set below to just y + heightLine if we do
- if ( y == yUnderscore )
- {
- // adjust the horz positions to account for the shift
- startUnderscore += xRealStart;
- endUnderscore += xRealStart;
- }
+ x1 = p->x;
+ y1 = p->y;
- if ( pc == text.end() )
- break;
+ node = node->GetNext();
+ p = node->GetData();
- curLine.clear();
- }
- else // not end of line
- {
- if ( pc - text.begin() == indexAccel )
- {
- // remeber to draw underscore here
- GetTextExtent(curLine, &startUnderscore, NULL);
- curLine += *pc;
- GetTextExtent(curLine, &endUnderscore, NULL);
+ x2 = p->x;
+ y2 = p->y;
+ cx1 = (double)((x1 + x2) / 2);
+ cy1 = (double)((y1 + y2) / 2);
+ cx2 = (double)((cx1 + x2) / 2);
+ cy2 = (double)((cy1 + y2) / 2);
- yUnderscore = y + heightLine;
- }
- else
- {
- curLine += *pc;
- }
- }
- }
+ wx_spline_add_point(x1, y1);
- // draw the underscore if found
- if ( startUnderscore != endUnderscore )
+ while ((node = node->GetNext())
+#if !wxUSE_STL
+ != NULL
+#endif // !wxUSE_STL
+ )
{
- // it should be of the same colour as text
- SetPen(wxPen(GetTextForeground(), 0, wxSOLID));
+ p = node->GetData();
+ x1 = x2;
+ y1 = y2;
+ x2 = p->x;
+ y2 = p->y;
+ cx4 = (double)(x1 + x2) / 2;
+ cy4 = (double)(y1 + y2) / 2;
+ cx3 = (double)(x1 + cx4) / 2;
+ cy3 = (double)(y1 + cy4) / 2;
- yUnderscore--;
+ wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
- DrawLine(startUnderscore, yUnderscore, endUnderscore, yUnderscore);
+ cx1 = cx4;
+ cy1 = cy4;
+ cx2 = (double)(cx1 + x2) / 2;
+ cy2 = (double)(cy1 + y2) / 2;
}
- // return bounding rect if requested
- if ( rectBounding )
- {
- *rectBounding = wxRect(x, y - heightText, widthText, heightText);
- }
+ wx_spline_add_point( cx1, cy1 );
+ wx_spline_add_point( x2, y2 );
- CalcBoundingBox(x0, y0);
- CalcBoundingBox(x0 + width0, y0 + height);
+ wx_spline_draw_point_array( m_owner );
}
+#endif // wxUSE_SPLINES
+
+
-void wxDCBase::DoGradientFillLinear(const wxRect& rect,
+void wxDCImpl::DoGradientFillLinear(const wxRect& rect,
const wxColour& initialColour,
const wxColour& destColour,
wxDirection nDirection)
SetPen(wxPen(colour, 1, wxSOLID));
SetBrush(wxBrush(colour));
if(nDirection == wxEAST)
- DrawRectangle(rect.GetRight()-x-xDelta, rect.GetTop(),
+ DoDrawRectangle(rect.GetRight()-x-xDelta+1, rect.GetTop(),
xDelta, rect.GetHeight());
else //nDirection == wxWEST
- DrawRectangle(rect.GetLeft()+x, rect.GetTop(),
+ DoDrawRectangle(rect.GetLeft()+x, rect.GetTop(),
xDelta, rect.GetHeight());
}
}
SetPen(wxPen(colour, 1, wxSOLID));
SetBrush(wxBrush(colour));
if(nDirection == wxNORTH)
- DrawRectangle(rect.GetLeft(), rect.GetTop()+y,
+ DoDrawRectangle(rect.GetLeft(), rect.GetTop()+y,
rect.GetWidth(), yDelta);
else //nDirection == wxSOUTH
- DrawRectangle(rect.GetLeft(), rect.GetBottom()-y-yDelta,
+ DoDrawRectangle(rect.GetLeft(), rect.GetBottom()-y-yDelta+1,
rect.GetWidth(), yDelta);
}
}
SetBrush(oldBrush);
}
-void wxDCBase::DoGradientFillConcentric(const wxRect& rect,
+void wxDCImpl::DoGradientFillConcentric(const wxRect& rect,
const wxColour& initialColour,
const wxColour& destColour,
const wxPoint& circleCenter)
//set the pixel
m_pen.SetColour(wxColour(nR,nG,nB));
- DrawPoint(wxPoint(x + rect.GetLeft(), y + rect.GetTop()));
+ DoDrawPoint(x + rect.GetLeft(), y + rect.GetTop());
}
}
//return old pen color
m_pen.SetColour(oldPenColour);
}
-/*
-Notes for wxWidgets 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.
+//-----------------------------------------------------------------------------
+// wxDC
+//-----------------------------------------------------------------------------
-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.
+IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
-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 )
+void wxDC::DrawLabel(const wxString& text,
+ const wxBitmap& bitmap,
+ const wxRect& rect,
+ int alignment,
+ int indexAccel,
+ wxRect *rectBounding)
{
- 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 ) );
+ // find the text position
+ wxCoord widthText, heightText, heightLine;
+ GetMultiLineTextExtent(text, &widthText, &heightText, &heightLine);
- // copy list into array and delete list elements
- int n = list.GetCount();
- wxPoint *points = new wxPoint[n];
- int i = 0;
- wxNode* node = 0;
- for ( node = list.GetFirst(); node; node = node->GetNext(), i++ )
+ wxCoord width, height;
+ if ( bitmap.Ok() )
{
- wxPoint *point = (wxPoint *)node->GetData();
- points[i].x = point->x;
- points[i].y = point->y;
- delete point;
+ width = widthText + bitmap.GetWidth();
+ height = bitmap.GetHeight();
}
-
- // first draw the pie without pen, if necessary
- if( GetBrush() != *wxTRANSPARENT_BRUSH )
+ else // no bitmap
{
- wxPen tempPen( GetPen() );
- SetPen( *wxTRANSPARENT_PEN );
- DoDrawPolygon( n, points, 0, 0 );
- SetPen( tempPen );
+ width = widthText;
+ height = heightText;
}
- // then draw the arc without brush, if necessary
- if( GetPen() != *wxTRANSPARENT_PEN )
+ wxCoord x, y;
+ if ( alignment & wxALIGN_RIGHT )
{
- // without center
- DoDrawLines( n-1, points, 0, 0 );
+ x = rect.GetRight() - width;
+ }
+ else if ( alignment & wxALIGN_CENTRE_HORIZONTAL )
+ {
+ x = (rect.GetLeft() + rect.GetRight() + 1 - width) / 2;
+ }
+ else // alignment & wxALIGN_LEFT
+ {
+ x = rect.GetLeft();
}
- delete [] points;
-
-} // DrawEllipticArcRot
-
-void wxDCBase::Rotate( wxList* points, double angle, wxPoint center )
-{
- if( angle != 0.0 )
+ if ( alignment & wxALIGN_BOTTOM )
{
- double pi(M_PI);
- double dSinA = -sin(angle*2.0*pi/360.0);
- double dCosA = cos(angle*2.0*pi/360.0);
- for ( wxNode* node = points->GetFirst(); node; node = node->GetNext() )
- {
- wxPoint* point = (wxPoint*)node->GetData();
+ y = rect.GetBottom() - height;
+ }
+ else if ( alignment & wxALIGN_CENTRE_VERTICAL )
+ {
+ y = (rect.GetTop() + rect.GetBottom() + 1 - height) / 2;
+ }
+ else // alignment & wxALIGN_TOP
+ {
+ y = rect.GetTop();
+ }
- // transform coordinates, if necessary
- if( center.x ) point->x -= center.x;
- if( center.y ) point->y -= center.y;
+ // draw the bitmap first
+ wxCoord x0 = x,
+ y0 = y,
+ width0 = width;
+ if ( bitmap.Ok() )
+ {
+ DrawBitmap(bitmap, x, y, true /* use mask */);
- // 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;
+ wxCoord offset = bitmap.GetWidth() + 4;
+ x += offset;
+ width -= offset;
- // back transform coordinates, if necessary
- if( center.x ) point->x += center.x;
- if( center.y ) point->y += center.y;
- }
+ y += (height - heightText) / 2;
}
-}
-void wxDCBase::CalculateEllipticPoints( wxList* points,
- wxCoord xStart, wxCoord yStart,
- wxCoord w, wxCoord h,
- double sa, double ea )
-{
- double pi = M_PI;
- 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 )
+ // we will draw the underscore under the accel char later
+ wxCoord startUnderscore = 0,
+ endUnderscore = 0,
+ yUnderscore = 0;
+
+ // split the string into lines and draw each of them separately
+ wxString curLine;
+ for ( wxString::const_iterator pc = text.begin(); ; ++pc )
{
- // 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 )
+ if ( *pc == _T('\n') || pc == text.end() )
{
- for( wxNode *node = pointsarray[q].GetFirst(); node; node = node->GetNext() )
+ int xRealStart = x; // init it here to avoid compielr warnings
+
+ if ( !curLine.empty() )
{
- // once: go to starting point in start quadrant
- if( !bStarted &&
- (
- ( (wxPoint*) node->GetData() )->x < xsa+1 && q <= 1
- ||
- ( (wxPoint*) node->GetData() )->x > xsa-1 && q >= 2
- )
- )
+ // NB: can't test for !(alignment & wxALIGN_LEFT) because
+ // wxALIGN_LEFT is 0
+ if ( alignment & (wxALIGN_RIGHT | wxALIGN_CENTRE_HORIZONTAL) )
{
- bStarted = true;
- }
+ wxCoord widthLine;
+ GetTextExtent(curLine, &widthLine, NULL);
- // copy point, if not at ending point
- if( bStarted )
- {
- if( q != eq || bForceTurn
- ||
- ( (wxPoint*) node->GetData() )->x > xea+1 && q <= 1
- ||
- ( (wxPoint*) node->GetData() )->x < xea-1 && q >= 2
- )
+ if ( alignment & wxALIGN_RIGHT )
{
- // copy point
- wxPoint* pPoint = new wxPoint( *((wxPoint*) node->GetData() ) );
- points->Append( (wxObject*) pPoint );
+ xRealStart += width - widthLine;
}
- else if( q == eq && !bForceTurn || ( (wxPoint*) node->GetData() )->x == xea)
+ else // if ( alignment & wxALIGN_CENTRE_HORIZONTAL )
{
- bReady = true;
+ xRealStart += (width - widthLine) / 2;
}
}
- } // 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 )
+ //else: left aligned, nothing to do
+
+ DrawText(curLine, xRealStart, y);
+ }
+
+ y += heightLine;
+
+ // do we have underscore in this line? we can check yUnderscore
+ // because it is set below to just y + heightLine if we do
+ if ( y == yUnderscore )
+ {
+ // adjust the horz positions to account for the shift
+ startUnderscore += xRealStart;
+ endUnderscore += xRealStart;
+ }
+
+ if ( pc == text.end() )
+ break;
+
+ curLine.clear();
+ }
+ else // not end of line
{
- for( wxNode *node = pointsarray[q].GetFirst(); node; node = node->GetNext() )
+ if ( pc - text.begin() == indexAccel )
+ {
+ // remeber to draw underscore here
+ GetTextExtent(curLine, &startUnderscore, NULL);
+ curLine += *pc;
+ GetTextExtent(curLine, &endUnderscore, NULL);
+
+ yUnderscore = y + heightLine;
+ }
+ else
{
- wxPoint *p = (wxPoint *)node->GetData();
- delete p;
+ curLine += *pc;
}
}
}
- else
+
+ // draw the underscore if found
+ if ( startUnderscore != endUnderscore )
{
- wxNode* node;
- // copy whole ellipse, wxPoints will be deleted outside
- for( node = pointsarray[0].GetFirst(); node; node = node->GetNext() )
- {
- wxObject *p = node->GetData();
- points->Append( p );
- }
- for( node = pointsarray[1].GetFirst(); node; node = node->GetNext() )
- {
- wxObject *p = node->GetData();
- points->Append( p );
- }
- for( node = pointsarray[2].GetFirst(); node; node = node->GetNext() )
- {
- wxObject *p = node->GetData();
- points->Append( p );
- }
- for( node = pointsarray[3].GetFirst(); node; node = node->GetNext() )
- {
- wxObject *p = node->GetData();
- points->Append( p );
- }
- } // not iUseAngles
-} // CalculateEllipticPoints
+ // it should be of the same colour as text
+ SetPen(wxPen(GetTextForeground(), 0, wxSOLID));
+
+ yUnderscore--;
+
+ DrawLine(startUnderscore, yUnderscore, endUnderscore, yUnderscore);
+ }
+
+ // return bounding rect if requested
+ if ( rectBounding )
+ {
+ *rectBounding = wxRect(x, y - heightText, widthText, heightText);
+ }
+
+ CalcBoundingBox(x0, y0);
+ CalcBoundingBox(x0 + width0, y0 + height);
+}
+
+#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
+ {
+ 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;
+ }
+
+void wxDC::GetLogicalOrigin(long *x, long *y) const
+ {
+ wxCoord x2, y2;
+ m_pimpl->DoGetLogicalOrigin(&x2, &y2);
+ if ( x )
+ *x = x2;
+ if ( y )
+ *y = y2;
+ }
+
+void wxDC::GetDeviceOrigin(long *x, long *y) const
+ {
+ wxCoord x2, y2;
+ m_pimpl->DoGetDeviceOrigin(&x2, &y2);
+ if ( x )
+ *x = x2;
+ if ( y )
+ *y = y2;
+ }
+
+void wxDC::GetClippingBox(long *x, long *y, long *w, long *h) const
+ {
+ 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;
+ }
-#endif // __WXWINCE__
+#endif // WXWIN_COMPATIBILITY_2_8
projects / wxWidgets.git / blobdiff