#include "wx/dcmemory.h"
#include "wx/dcscreen.h"
#include "wx/dcprint.h"
-#include "wx/dcbuffer.h" // for IMPLEMENT_DYNAMIC_CLASS
#include "wx/prntbase.h"
+#include "wx/scopeguard.h"
#ifndef WX_PRECOMP
#include "wx/math.h"
+ #include "wx/module.h"
+ #include "wx/window.h"
#endif
+#include "wx/private/textmeasure.h"
+#ifdef __WXMSW__
+ #include "wx/msw/dcclient.h"
+ #include "wx/msw/dcmemory.h"
+ #include "wx/msw/dcscreen.h"
+#endif
+
+#ifdef __WXGTK3__
+ #include "wx/gtk/dc.h"
+#elif defined __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
+
+#ifdef __WXMAC__
+ #include "wx/osx/dcclient.h"
+ #include "wx/osx/dcmemory.h"
+ #include "wx/osx/dcscreen.h"
+#endif
+
+#ifdef __WXPM__
+ #include "wx/os2/dcclient.h"
+ #include "wx/os2/dcmemory.h"
+ #include "wx/os2/dcscreen.h"
+#endif
-#if wxUSE_NEW_DC
+#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
//----------------------------------------------------------------------------
// wxDCFactory
wxDCFactory *wxDCFactory::m_factory = NULL;
-void wxDCFactory::SetDCFactory( wxDCFactory *factory )
+void wxDCFactory::Set(wxDCFactory *factory)
{
- if (wxDCFactory::m_factory)
- delete wxDCFactory::m_factory;
+ delete m_factory;
- wxDCFactory::m_factory = factory;
+ m_factory = factory;
}
-wxDCFactory *wxDCFactory::GetFactory()
+wxDCFactory *wxDCFactory::Get()
{
- if (!wxDCFactory::m_factory)
- wxDCFactory::m_factory = new wxNativeDCFactory;
+ if ( !m_factory )
+ m_factory = new wxNativeDCFactory;
- return wxDCFactory::m_factory;
+ 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
//-----------------------------------------------------------------------------
-wxImplDC* wxNativeDCFactory::CreateWindowDC( wxWindowDC *owner )
-{
-#if defined(__WXMSW__)
- return new wxWindowsWindowImplDC( owner );
-#elif defined(__WXGTK20__)
- return new wxGTKWindowImplDC( owner );
-#elif defined(__WXGTK__)
- return new wxGTKWindowImplDC( owner );
-#elif defined(__WXMAC__)
- return new wxMacWindowImplDC( owner );
-#elif defined(__WXCOCOA__)
- return new wxCocoaWindowImplDC( owner );
-#elif defined(__WXMOTIF__)
- return new wxMotifWindowImplDC( owner );
-#elif defined(__WXX11__)
- return new wxX11WindowImplDC( owner );
-#elif defined(__WXMGL__)
- return new wxMGLWindowImplDC( owner );
-#elif defined(__WXDFB__)
- return new wxDFBWindowImplDC( owner );
-#elif defined(__WXPM__)
- return new wxPMWindowImplDC( owner );
-#elif defined(__PALMOS__)
- return new wxPalmWindowImplDC( owner );
-#endif
-}
-
-wxImplDC* wxNativeDCFactory::CreateWindowDC( wxWindowDC *owner, wxWindow *window )
-{
-#if defined(__WXMSW__)
- return new wxWindowsWindowImplDC( owner, window );
-#elif defined(__WXGTK20__)
- return new wxGTKWindowImplDC( owner, window );
-#elif defined(__WXGTK__)
- return new wxGTKWindowImplDC( owner, window );
-#elif defined(__WXMAC__)
- return new wxMacWindowImplDC( owner, window );
-#elif defined(__WXCOCOA__)
- return new wxCocoaWindowImplDC( owner, window );
-#elif defined(__WXMOTIF__)
- return new wxMotifWindowImplDC( owner, window );
-#elif defined(__WXX11__)
- return new wxX11WindowImplDC( owner, window );
-#elif defined(__WXMGL__)
- return new wxMGLWindowImplDC( owner, window );
-#elif defined(__WXDFB__)
- return new wxDFBWindowImplDC( owner, window );
-#elif defined(__WXPM__)
- return new wxPMWindowImplDC( owner, window );
-#elif defined(__PALMOS__)
- return new wxPalmWindowImplDC( owner, window );
-#endif
-}
-
-wxImplDC* wxNativeDCFactory::CreateClientDC( wxClientDC *owner )
+wxDCImpl* wxNativeDCFactory::CreateWindowDC( wxWindowDC *owner, wxWindow *window )
{
-#if defined(__WXMSW__)
- return new wxWindowsClientImplDC( owner );
-#elif defined(__WXGTK20__)
- return new wxGTKClientImplDC( owner );
-#elif defined(__WXGTK__)
- return new wxGTKClientImplDC( owner );
-#elif defined(__WXMAC__)
- return new wxMacClientImplDC( owner );
-#elif defined(__WXCOCOA__)
- return new wxCocoaClientImplDC( owner );
-#elif defined(__WXMOTIF__)
- return new wxMotifClientImplDC( owner );
-#elif defined(__WXX11__)
- return new wxX11ClientImplDC( owner );
-#elif defined(__WXMGL__)
- return new wxMGLClientImplDC( owner );
-#elif defined(__WXDFB__)
- return new wxDFBClientImplDC( owner );
-#elif defined(__WXPM__)
- return new wxPMClientImplDC( owner );
-#elif defined(__PALMOS__)
- return new wxPalmClientImplDC( owner );
-#endif
+ wxDCImpl * const impl = new wxWindowDCImpl( owner, window );
+ impl->InheritAttributes(window);
+ return impl;
}
-wxImplDC* wxNativeDCFactory::CreateClientDC( wxClientDC *owner, wxWindow *window )
+wxDCImpl* wxNativeDCFactory::CreateClientDC( wxClientDC *owner, wxWindow *window )
{
-#if defined(__WXMSW__)
- return new wxWindowsClientImplDC( owner, window );
-#elif defined(__WXGTK20__)
- return new wxGTKClientImplDC( owner, window );
-#elif defined(__WXGTK__)
- return new wxGTKClientImplDC( owner, window );
-#elif defined(__WXMAC__)
- return new wxMacClientImplDC( owner, window );
-#elif defined(__WXCOCOA__)
- return new wxCocoaClientImplDC( owner, window );
-#elif defined(__WXMOTIF__)
- return new wxMotifClientImplDC( owner, window );
-#elif defined(__WXX11__)
- return new wxX11ClientImplDC( owner, window );
-#elif defined(__WXMGL__)
- return new wxMGLClientImplDC( owner, window );
-#elif defined(__WXDFB__)
- return new wxDFBClientImplDC( owner, window );
-#elif defined(__WXPM__)
- return new wxPMClientImplDC( owner, window );
-#elif defined(__PALMOS__)
- return new wxPalmClientImplDC( owner, window );
-#endif
+ wxDCImpl * const impl = new wxClientDCImpl( owner, window );
+ impl->InheritAttributes(window);
+ return impl;
}
-wxImplDC* wxNativeDCFactory::CreatePaintDC( wxPaintDC *owner )
+wxDCImpl* wxNativeDCFactory::CreatePaintDC( wxPaintDC *owner, wxWindow *window )
{
-#if defined(__WXMSW__)
- return new wxWindowsPaintImplDC( owner );
-#elif defined(__WXGTK20__)
- return new wxGTKPaintImplDC( owner );
-#elif defined(__WXGTK__)
- return new wxGTKPaintImplDC( owner );
-#elif defined(__WXMAC__)
- return new wxMacPaintImplDC( owner );
-#elif defined(__WXCOCOA__)
- return new wxCocoaPaintImplDC( owner );
-#elif defined(__WXMOTIF__)
- return new wxMotifPaintImplDC( owner );
-#elif defined(__WXX11__)
- return new wxX11PaintImplDC( owner );
-#elif defined(__WXMGL__)
- return new wxMGLPaintImplDC( owner );
-#elif defined(__WXDFB__)
- return new wxDFBPaintImplDC( owner );
-#elif defined(__WXPM__)
- return new wxPMPaintImplDC( owner );
-#elif defined(__PALMOS__)
- return new wxPalmPaintImplDC( owner );
-#endif
+ wxDCImpl * const impl = new wxPaintDCImpl( owner, window );
+ impl->InheritAttributes(window);
+ return impl;
}
-wxImplDC* wxNativeDCFactory::CreatePaintDC( wxPaintDC *owner, wxWindow *window )
+wxDCImpl* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner )
{
-#if defined(__WXMSW__)
- return new wxWindowsPaintImplDC( owner, window );
-#elif defined(__WXGTK20__)
- return new wxGTKPaintImplDC( owner, window );
-#elif defined(__WXGTK__)
- return new wxGTKPaintImplDC( owner, window );
-#elif defined(__WXMAC__)
- return new wxMacPaintImplDC( owner, window );
-#elif defined(__WXCOCOA__)
- return new wxCocoaPaintImplDC( owner, window );
-#elif defined(__WXMOTIF__)
- return new wxMotifPaintImplDC( owner, window );
-#elif defined(__WXX11__)
- return new wxX11PaintImplDC( owner, window );
-#elif defined(__WXMGL__)
- return new wxMGLPaintImplDC( owner, window );
-#elif defined(__WXDFB__)
- return new wxDFBPaintImplDC( owner, window );
-#elif defined(__WXPM__)
- return new wxPMPaintImplDC( owner, window );
-#elif defined(__PALMOS__)
- return new wxPalmPaintImplDC( owner, window );
-#endif
+ return new wxMemoryDCImpl( owner );
}
-wxImplDC* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner )
+wxDCImpl* wxNativeDCFactory::CreateMemoryDC(wxMemoryDC *owner, wxBitmap& bitmap)
{
-#if defined(__WXMSW__)
- return new wxWindowsMemoryImplDC( owner );
-#elif defined(__WXGTK20__)
- return new wxGTKMemoryImplDC( owner );
-#elif defined(__WXGTK__)
- return new wxGTKMemoryImplDC( owner );
-#elif defined(__WXMAC__)
- return new wxMacMemoryImplDC( owner );
-#elif defined(__WXCOCOA__)
- return new wxCocoaMemoryImplDC( owner );
-#elif defined(__WXMOTIF__)
- return new wxMotifMemoryImplDC( owner );
-#elif defined(__WXX11__)
- return new wxX11MemoryImplDC( owner );
-#elif defined(__WXMGL__)
- return new wxMGLMemoryImplDC( owner );
-#elif defined(__WXDFB__)
- return new wxDFBMemoryImplDC( owner );
-#elif defined(__WXPM__)
- return new wxPMMemoryImplDC( owner );
-#elif defined(__PALMOS__)
- return new wxPalmMemoryImplDC( owner );
-#endif
-}
+ // the bitmap may be modified when it's selected into a memory DC so make
+ // sure changing this bitmap doesn't affect any other shallow copies of it
+ // (see wxMemoryDC::SelectObject())
+ //
+ // notice that we don't provide any ctor equivalent to SelectObjectAsSource
+ // method because this should be rarely needed and easy to work around by
+ // using the default ctor and calling SelectObjectAsSource itself
+ if ( bitmap.IsOk() )
+ bitmap.UnShare();
-wxImplDC* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap )
-{
-#if defined(__WXMSW__)
- return new wxWindowsMemoryImplDC( owner, bitmap );
-#elif defined(__WXGTK20__)
- return new wxGTKMemoryImplDC( owner, bitmap );
-#elif defined(__WXGTK__)
- return new wxGTKMemoryImplDC( owner, bitmap );
-#elif defined(__WXMAC__)
- return new wxMacMemoryImplDC( owner, bitmap );
-#elif defined(__WXCOCOA__)
- return new wxCocoaMemoryImplDC( owner, bitmap );
-#elif defined(__WXMOTIF__)
- return new wxMotifMemoryImplDC( owner, bitmap );
-#elif defined(__WXX11__)
- return new wxX11MemoryImplDC( owner, bitmap );
-#elif defined(__WXMGL__)
- return new wxMGLMemoryImplDC( owner, bitmap );
-#elif defined(__WXDFB__)
- return new wxDFBMemoryImplDC( owner, bitmap );
-#elif defined(__WXPM__)
- return new wxPMMemoryImplDC( owner, bitmap );
-#elif defined(__PALMOS__)
- return new wxPalmMemoryImplDC( owner, bitmap );
-#endif
+ return new wxMemoryDCImpl(owner, bitmap);
}
-wxImplDC* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner, wxDC *dc )
+wxDCImpl* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner, wxDC *dc )
{
-#if defined(__WXMSW__)
- return new wxWindowsMemoryImplDC( owner, dc );
-#elif defined(__WXGTK20__)
- return new wxGTKMemoryImplDC( owner, dc );
-#elif defined(__WXGTK__)
- return new wxGTKMemoryImplDC( owner, dc );
-#elif defined(__WXMAC__)
- return new wxMacMemoryImplDC( owner, dc );
-#elif defined(__WXCOCOA__)
- return new wxCocoaMemoryImplDC( owner, dc );
-#elif defined(__WXMOTIF__)
- return new wxMotifMemoryImplDC( owner, dc );
-#elif defined(__WXX11__)
- return new wxX11MemoryImplDC( owner, dc );
-#elif defined(__WXMGL__)
- return new wxMGLMemoryImplDC( owner, dc );
-#elif defined(__WXDFB__)
- return new wxDFBMemoryImplDC( owner, dc );
-#elif defined(__WXPM__)
- return new wxPMMemoryImplDC( owner, dc );
-#elif defined(__PALMOS__)
- return new wxPalmMemoryImplDC( owner, dc );
-#endif
+ return new wxMemoryDCImpl( owner, dc );
}
-wxImplDC* wxNativeDCFactory::CreateScreenDC( wxScreenDC *owner )
+wxDCImpl* wxNativeDCFactory::CreateScreenDC( wxScreenDC *owner )
{
-#if defined(__WXMSW__)
- return new wxWindowsScreenImplDC( owner );
-#elif defined(__WXGTK20__)
- return new wxGTKScreenImplDC( owner );
-#elif defined(__WXGTK__)
- return new wxGTKScreenImplDC( owner );
-#elif defined(__WXMAC__)
- return new wxMacScreenImplDC( owner );
-#elif defined(__WXCOCOA__)
- return new wxCocoaScreenImplDC( owner );
-#elif defined(__WXMOTIF__)
- return new wxMotifScreenImplDC( owner );
-#elif defined(__WXX11__)
- return new wxX11ScreenImplDC( owner );
-#elif defined(__WXMGL__)
- return new wxMGLScreenImplDC( owner );
-#elif defined(__WXDFB__)
- return new wxDFBScreenImplDC( owner );
-#elif defined(__WXPM__)
- return new wxPMScreenImplDC( owner );
-#elif defined(__PALMOS__)
- return new wxPalmScreenImplDC( owner );
-#endif
+ return new wxScreenDCImpl( owner );
}
-wxImplDC *wxNativeDCFactory::CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data )
+#if wxUSE_PRINTING_ARCHITECTURE
+wxDCImpl *wxNativeDCFactory::CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data )
{
wxPrintFactory *factory = wxPrintFactory::GetFactory();
- return factory->CreatePrinterImplDC( owner, data );
+ return factory->CreatePrinterDCImpl( owner, data );
}
+#endif
//-----------------------------------------------------------------------------
// wxWindowDC
//-----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
+IMPLEMENT_ABSTRACT_CLASS(wxWindowDC, wxDC)
-wxWindowDC::wxWindowDC()
+wxWindowDC::wxWindowDC(wxWindow *win)
+ : wxDC(wxDCFactory::Get()->CreateWindowDC(this, win))
{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreateWindowDC( this );
-}
-
-wxWindowDC::wxWindowDC( wxWindow *win )
-{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreateWindowDC( this, win );
}
//-----------------------------------------------------------------------------
// wxClientDC
//-----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxDC)
-
-wxClientDC::wxClientDC()
-{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreateClientDC( this );
-}
+IMPLEMENT_ABSTRACT_CLASS(wxClientDC, wxWindowDC)
-wxClientDC::wxClientDC( wxWindow *win )
+wxClientDC::wxClientDC(wxWindow *win)
+ : wxWindowDC(wxDCFactory::Get()->CreateClientDC(this, win))
{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreateClientDC( this, win );
}
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxDC)
wxMemoryDC::wxMemoryDC()
+ : wxDC(wxDCFactory::Get()->CreateMemoryDC(this))
{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreateMemoryDC( this );
}
-wxMemoryDC::wxMemoryDC( wxBitmap& bitmap )
+wxMemoryDC::wxMemoryDC(wxBitmap& bitmap)
+ : wxDC(wxDCFactory::Get()->CreateMemoryDC(this, bitmap))
{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreateMemoryDC( this, bitmap );
}
-wxMemoryDC::wxMemoryDC( wxDC *dc )
+wxMemoryDC::wxMemoryDC(wxDC *dc)
+ : wxDC(wxDCFactory::Get()->CreateMemoryDC(this, dc))
{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreateMemoryDC( this, dc );
}
void wxMemoryDC::SelectObject(wxBitmap& bmp)
{
+ if ( bmp.IsSameAs(GetSelectedBitmap()) )
+ {
+ // Nothing to do, this bitmap is already selected.
+ return;
+ }
+
// 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
return GetImpl()->GetSelectedBitmap();
}
-
+
//-----------------------------------------------------------------------------
// wxPaintDC
//-----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxDC)
-
-wxPaintDC::wxPaintDC()
-{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreatePaintDC( this );
-}
+IMPLEMENT_ABSTRACT_CLASS(wxPaintDC, wxClientDC)
-wxPaintDC::wxPaintDC( wxWindow *win )
+wxPaintDC::wxPaintDC(wxWindow *win)
+ : wxClientDC(wxDCFactory::Get()->CreatePaintDC(this, win))
{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreatePaintDC( this, win );
}
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxScreenDC, wxWindowDC)
wxScreenDC::wxScreenDC()
+ : wxDC(wxDCFactory::Get()->CreateScreenDC(this))
{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->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() const
{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- // m_pimpl = factory->CreatePrinterDC( this, data );
+ return GetImpl()->GetPaperRect();
}
-wxPrinterDC::wxPrinterDC( const wxPrintData &data )
+int wxPrinterDC::GetResolution() const
{
- wxDCFactory *factory = wxDCFactory::GetFactory();
- m_pimpl = factory->CreatePrinterDC( this, data );
+ return GetImpl()->GetResolution();
}
+#endif // wxUSE_PRINTING_ARCHITECTURE
+
//-----------------------------------------------------------------------------
-// wxImplDC
+// wxDCImpl
//-----------------------------------------------------------------------------
-IMPLEMENT_ABSTRACT_CLASS(wxImplDC, wxObject)
+IMPLEMENT_ABSTRACT_CLASS(wxDCImpl, wxObject)
-wxImplDC::wxImplDC( wxDC *owner )
- : m_colour(wxColourDisplay())
+wxDCImpl::wxDCImpl( wxDC *owner )
+ : m_window(NULL)
+ , m_colour(wxColourDisplay())
, m_ok(true)
, m_clipping(false)
, m_isInteractive(0)
, m_userScaleX(1.0), m_userScaleY(1.0)
, m_scaleX(1.0), m_scaleY(1.0)
, m_signX(1), m_signY(1)
+ , m_contentScaleFactor(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_backgroundMode(wxBRUSHSTYLE_TRANSPARENT)
, m_mappingMode(wxMM_TEXT)
, m_pen()
, m_brush()
- , m_backgroundBrush(*wxTRANSPARENT_BRUSH)
+ , m_backgroundBrush()
, m_textForegroundColour(*wxBLACK)
, m_textBackgroundColour(*wxWHITE)
, m_font()
(double)wxGetDisplaySizeMM().GetWidth();
m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() /
(double)wxGetDisplaySizeMM().GetHeight();
-
+
ResetBoundingBox();
ResetClipping();
}
-wxImplDC::~wxImplDC()
+wxDCImpl::~wxDCImpl()
+{
+}
+
+// ----------------------------------------------------------------------------
+// clipping
+// ----------------------------------------------------------------------------
+
+void wxDCImpl::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
{
+ if ( m_clipping )
+ {
+ m_clipX1 = wxMax( m_clipX1, x );
+ m_clipY1 = wxMax( m_clipY1, y );
+ m_clipX2 = wxMin( m_clipX2, (x + w) );
+ m_clipY2 = wxMin( m_clipY2, (y + h) );
+ }
+ else
+ {
+ m_clipping = true;
+
+ m_clipX1 = x;
+ m_clipY1 = y;
+ m_clipX2 = x + w;
+ m_clipY2 = y + h;
+ }
}
// ----------------------------------------------------------------------------
// coordinate conversions and transforms
// ----------------------------------------------------------------------------
-wxCoord wxImplDC::DeviceToLogicalX(wxCoord x) const
+wxCoord wxDCImpl::DeviceToLogicalX(wxCoord x) const
{
- return wxRound((double)(x - m_deviceOriginX - m_deviceLocalOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
+ return wxRound( (double)((x - m_deviceOriginX - m_deviceLocalOriginX) * m_signX) / m_scaleX ) + m_logicalOriginX ;
}
-wxCoord wxImplDC::DeviceToLogicalY(wxCoord y) const
+wxCoord wxDCImpl::DeviceToLogicalY(wxCoord y) const
{
- return wxRound((double)(y - m_deviceOriginY - m_deviceLocalOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
+ return wxRound( (double)((y - m_deviceOriginY - m_deviceLocalOriginY) * m_signY) / m_scaleY ) + m_logicalOriginY ;
}
-wxCoord wxImplDC::DeviceToLogicalXRel(wxCoord x) const
+wxCoord wxDCImpl::DeviceToLogicalXRel(wxCoord x) const
{
return wxRound((double)(x) / m_scaleX);
}
-wxCoord wxImplDC::DeviceToLogicalYRel(wxCoord y) const
+wxCoord wxDCImpl::DeviceToLogicalYRel(wxCoord y) const
{
return wxRound((double)(y) / m_scaleY);
}
-wxCoord wxImplDC::LogicalToDeviceX(wxCoord x) const
+wxCoord wxDCImpl::LogicalToDeviceX(wxCoord x) const
{
- return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX * m_signY + m_deviceLocalOriginX;
+ return wxRound( (double)((x - m_logicalOriginX) * m_signX) * m_scaleX) + m_deviceOriginX + m_deviceLocalOriginX;
}
-wxCoord wxImplDC::LogicalToDeviceY(wxCoord y) const
+wxCoord wxDCImpl::LogicalToDeviceY(wxCoord y) const
{
- return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY * m_signY + m_deviceLocalOriginY;
+ return wxRound( (double)((y - m_logicalOriginY) * m_signY) * m_scaleY) + m_deviceOriginY + m_deviceLocalOriginY;
}
-wxCoord wxImplDC::LogicalToDeviceXRel(wxCoord x) const
+wxCoord wxDCImpl::LogicalToDeviceXRel(wxCoord x) const
{
return wxRound((double)(x) * m_scaleX);
}
-wxCoord wxImplDC::LogicalToDeviceYRel(wxCoord y) const
+wxCoord wxDCImpl::LogicalToDeviceYRel(wxCoord y) const
{
return wxRound((double)(y) * m_scaleY);
}
-void wxImplDC::ComputeScaleAndOrigin()
+void wxDCImpl::ComputeScaleAndOrigin()
{
m_scaleX = m_logicalScaleX * m_userScaleX;
m_scaleY = m_logicalScaleY * m_userScaleY;
}
-void wxImplDC::SetMapMode( int mode )
+void wxDCImpl::SetMapMode( wxMappingMode mode )
{
switch (mode)
{
m_mappingMode = mode;
}
-void wxImplDC::SetUserScale( double x, double y )
+void wxDCImpl::SetUserScale( double x, double y )
{
// allow negative ? -> no
m_userScaleX = x;
ComputeScaleAndOrigin();
}
-void wxImplDC::SetLogicalScale( double x, double y )
+void wxDCImpl::SetLogicalScale( double x, double y )
{
// allow negative ?
m_logicalScaleX = x;
ComputeScaleAndOrigin();
}
-void wxImplDC::SetLogicalOrigin( wxCoord x, wxCoord y )
+void wxDCImpl::SetLogicalOrigin( wxCoord x, wxCoord y )
{
m_logicalOriginX = x * m_signX;
m_logicalOriginY = y * m_signY;
ComputeScaleAndOrigin();
}
-void wxImplDC::SetDeviceOrigin( wxCoord x, wxCoord y )
+void wxDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y )
{
m_deviceOriginX = x;
m_deviceOriginY = y;
ComputeScaleAndOrigin();
}
-void wxImplDC::SetDeviceLocalOrigin( wxCoord x, wxCoord y )
+void wxDCImpl::SetDeviceLocalOrigin( wxCoord x, wxCoord y )
{
m_deviceLocalOriginX = x;
m_deviceLocalOriginY = y;
ComputeScaleAndOrigin();
}
-void wxImplDC::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
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 wxImplDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
+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;
+ wxTextMeasure tm(GetOwner(), &m_font);
+ return tm.GetPartialTextExtents(text, widths, m_scaleX);
}
-void wxImplDC::GetMultiLineTextExtent(const wxString& text,
+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;
+ wxTextMeasure tm(GetOwner(), font && font->IsOk() ? font : &m_font);
+ tm.GetMultiLineTextExtent(text, x, y, h);
}
-void wxImplDC::DoDrawCheckMark(wxCoord x1, wxCoord y1,
+void wxDCImpl::DoDrawCheckMark(wxCoord x1, wxCoord y1,
wxCoord width, wxCoord height)
{
wxCHECK_RET( IsOk(), wxT("invalid window dc") );
}
bool
-wxImplDC::DoStretchBlit(wxCoord xdest, wxCoord ydest,
+wxDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest,
wxCoord dstWidth, wxCoord dstHeight,
wxDC *source,
wxCoord xsrc, wxCoord ysrc,
wxCoord srcWidth, wxCoord srcHeight,
- int rop,
+ wxRasterOperationMode rop,
bool useMask,
wxCoord xsrcMask,
wxCoord ysrcMask)
{
wxCHECK_MSG( srcWidth && srcHeight && dstWidth && dstHeight, false,
- _T("invalid blit size") );
+ wxT("invalid blit size") );
// emulate the stretching by modifying the DC scale
double xscale = (double)srcWidth/dstWidth,
return rc;
}
-void wxImplDC::DrawLines(const wxPointList *list, wxCoord xoffset, wxCoord yoffset)
+void wxDCImpl::DrawLines(const wxPointList *list, wxCoord xoffset, wxCoord yoffset)
{
int n = list->GetCount();
wxPoint *points = new wxPoint[n];
delete [] points;
}
-void wxImplDC::DrawPolygon(const wxPointList *list,
+void wxDCImpl::DrawPolygon(const wxPointList *list,
wxCoord xoffset, wxCoord yoffset,
- int fillStyle)
+ wxPolygonFillMode fillStyle)
{
int n = list->GetCount();
wxPoint *points = new wxPoint[n];
}
void
-wxImplDC::DoDrawPolyPolygon(int n,
- int count[],
- wxPoint points[],
+wxDCImpl::DoDrawPolyPolygon(int n,
+ const int count[],
+ const wxPoint points[],
wxCoord xoffset, wxCoord yoffset,
- int fillStyle)
+ wxPolygonFillMode fillStyle)
{
if ( n == 1 )
{
int i, j, lastOfs;
wxPoint* pts;
- wxPen pen;
for (i = j = lastOfs = 0; i < n; i++)
{
pts[j++] = pts[lastOfs];
}
- pen = GetPen();
- SetPen(wxPen(*wxBLACK, 0, wxTRANSPARENT));
- DoDrawPolygon(j, pts, xoffset, yoffset, fillStyle);
- SetPen(pen);
+ {
+ wxDCPenChanger setTransp(*m_owner, *wxTRANSPARENT_PEN);
+ DoDrawPolygon(j, pts, xoffset, yoffset, fillStyle);
+ }
+
for (i = j = 0; i < n; i++)
{
DoDrawLines(count[i], pts+j, xoffset, yoffset);
#if wxUSE_SPLINES
-void wxImplDC::DoDrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3)
+void wxDCImpl::DrawSpline(wxCoord x1, wxCoord y1,
+ wxCoord x2, wxCoord y2,
+ wxCoord x3, wxCoord y3)
{
- wxPointList point_list;
-
- wxPoint *point1 = new wxPoint;
- point1->x = x1; point1->y = y1;
- point_list.Append( point1 );
-
- wxPoint *point2 = new wxPoint;
- point2->x = x2; point2->y = y2;
- point_list.Append( point2 );
-
- wxPoint *point3 = new wxPoint;
- point3->x = x3; point3->y = y3;
- point_list.Append( point3 );
-
- DoDrawSpline(&point_list);
-
- for( wxPointList::compatibility_iterator node = point_list.GetFirst(); node; node = node->GetNext() )
- {
- wxPoint *p = node->GetData();
- delete p;
- }
+ wxPoint points[] = { wxPoint(x1, y1), wxPoint(x2, y2), wxPoint(x3, y3) };
+ DrawSpline(WXSIZEOF(points), points);
}
-void wxImplDC::DoDrawSpline(int n, wxPoint points[])
+void wxDCImpl::DrawSpline(int n, const wxPoint points[])
{
wxPointList list;
- for (int i =0; i < n; i++)
- list.Append( &points[i] );
+ for ( int i = 0; i < n; i++ )
+ list.Append(const_cast<wxPoint*>(&points[i]));
- DoDrawSpline(&list);
+ DrawSpline(&list);
}
// ----------------------------------- spline code ----------------------------------------
static bool wx_spline_add_point(double x, double y);
static void wx_spline_draw_point_array(wxDC *dc);
-wxPointList wx_spline_point_list;
+static wxPointList wx_spline_point_list;
#define half(z1, z2) ((z1+z2)/2.0)
#define THRESHOLD 5
}
}
-void wxImplDC::DoDrawSpline( const wxPointList *points )
+void wxDCImpl::DoDrawSpline( const wxPointList *points )
{
wxCHECK_RET( IsOk(), wxT("invalid window dc") );
- wxPoint *p;
+ const wxPoint *p;
double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
double x1, y1, x2, y2;
// empty list
return;
- p = (wxPoint *)node->GetData();
+ p = node->GetData();
x1 = p->x;
y1 = p->y;
wx_spline_add_point(x1, y1);
while ((node = node->GetNext())
-#if !wxUSE_STL
+#if !wxUSE_STD_CONTAINERS
!= NULL
-#endif // !wxUSE_STL
+#endif // !wxUSE_STD_CONTAINERS
)
{
p = node->GetData();
-void wxImplDC::DoGradientFillLinear(const wxRect& rect,
+void wxDCImpl::DoGradientFillLinear(const wxRect& rect,
const wxColour& initialColour,
const wxColour& destColour,
wxDirection nDirection)
nB = nB1 + (nB2-nB1)*(w-x)/w;
wxColour colour(nR,nG,nB);
- SetPen(wxPen(colour, 1, wxSOLID));
+ SetPen(wxPen(colour, 1, wxPENSTYLE_SOLID));
SetBrush(wxBrush(colour));
if(nDirection == wxEAST)
DoDrawRectangle(rect.GetRight()-x-xDelta+1, rect.GetTop(),
nB = nB1 + (nB2-nB1)*(w-y)/w;
wxColour colour(nR,nG,nB);
- SetPen(wxPen(colour, 1, wxSOLID));
+ SetPen(wxPen(colour, 1, wxPENSTYLE_SOLID));
SetBrush(wxBrush(colour));
if(nDirection == wxNORTH)
DoDrawRectangle(rect.GetLeft(), rect.GetTop()+y,
SetBrush(oldBrush);
}
-void wxImplDC::DoGradientFillConcentric(const wxRect& rect,
+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();
+ // save the old pen and ensure it is restored on exit
+ const wxPen penOrig = m_pen;
+ wxON_BLOCK_EXIT_SET(m_pen, penOrig);
wxUint8 nR1 = destColour.Red();
wxUint8 nG1 = destColour.Green();
//Radius
- wxInt32 cx = rect.GetWidth() / 2;
- wxInt32 cy = rect.GetHeight() / 2;
- wxInt32 nRadius;
+ double cx = rect.GetWidth() / 2;
+ double cy = rect.GetHeight() / 2;
+ double dRadius;
if (cx < cy)
- nRadius = cx;
+ dRadius = cx;
else
- nRadius = cy;
+ dRadius = cy;
//Offset of circle
- wxInt32 nCircleOffX = circleCenter.x - (rect.GetWidth() / 2);
- wxInt32 nCircleOffY = circleCenter.y - (rect.GetHeight() / 2);
+ double ptX, ptY;
+ ptX = circleCenter.x;
+ ptY = circleCenter.y;
+ double nCircleOffX = ptX - cx;
+ double nCircleOffY = ptY - cy;
+
+ double dGradient;
+ double dx, dy;
for ( wxInt32 x = 0; x < rect.GetWidth(); x++ )
{
for ( wxInt32 y = 0; y < rect.GetHeight(); y++ )
{
//get color difference
- wxInt32 nGradient = ((nRadius -
- (wxInt32)sqrt(
- pow((double)(x - cx - nCircleOffX), 2) +
- pow((double)(y - cy - nCircleOffY), 2)
- )) * 100) / nRadius;
+ dx = x;
+ dy = y;
+
+ dGradient = ((dRadius - sqrt( (dx - cx - nCircleOffX) * (dx - cx - nCircleOffX)
+ +(dy - cy - nCircleOffY) * (dy - cy - nCircleOffY)
+ )
+ ) * 100
+ ) / dRadius;
//normalize Gradient
- if (nGradient < 0 )
- nGradient = 0;
+ if (dGradient < 0)
+ dGradient = 0.0;
//get dest colors
- nR = (wxUint8)(nR1 + ((nR2 - nR1) * nGradient / 100));
- nG = (wxUint8)(nG1 + ((nG2 - nG1) * nGradient / 100));
- nB = (wxUint8)(nB1 + ((nB2 - nB1) * nGradient / 100));
+ nR = (wxUint8)(nR1 + ((nR2 - nR1) * dGradient / 100));
+ nG = (wxUint8)(nG1 + ((nG2 - nG1) * dGradient / 100));
+ nB = (wxUint8)(nB1 + ((nB2 - nB1) * dGradient / 100));
//set the pixel
- m_pen.SetColour(wxColour(nR,nG,nB));
+ SetPen(wxColour(nR,nG,nB));
DoDrawPoint(x + rect.GetLeft(), y + rect.GetTop());
}
}
- //return old pen color
- m_pen.SetColour(oldPenColour);
+}
+
+void wxDCImpl::InheritAttributes(wxWindow *win)
+{
+ wxCHECK_RET( win, "window can't be NULL" );
+
+ SetFont(win->GetFont());
+ SetTextForeground(win->GetForegroundColour());
+ SetTextBackground(win->GetBackgroundColour());
+ SetBackground(win->GetBackgroundColour());
+ SetLayoutDirection(win->GetLayoutDirection());
+}
+
+void wxDCImpl::DoGetFontMetrics(int *height,
+ int *ascent,
+ int *descent,
+ int *internalLeading,
+ int *externalLeading,
+ int *averageWidth) const
+{
+ // Average width is typically the same as width of 'x'.
+ wxCoord h, d;
+ DoGetTextExtent("x", averageWidth, &h, &d, externalLeading);
+
+ if ( height )
+ *height = h;
+ if ( ascent )
+ *ascent = h - d;
+ if ( descent )
+ *descent = d;
+ if ( internalLeading )
+ *internalLeading = 0;
}
//-----------------------------------------------------------------------------
IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
+void wxDC::CopyAttributes(const wxDC& dc)
+{
+ SetFont(dc.GetFont());
+ SetTextForeground(dc.GetTextForeground());
+ SetTextBackground(dc.GetTextBackground());
+ SetBackground(dc.GetBackground());
+ SetLayoutDirection(dc.GetLayoutDirection());
+}
+
void wxDC::DrawLabel(const wxString& text,
const wxBitmap& bitmap,
const wxRect& rect,
GetMultiLineTextExtent(text, &widthText, &heightText, &heightLine);
wxCoord width, height;
- if ( bitmap.Ok() )
+ if ( bitmap.IsOk() )
{
width = widthText + bitmap.GetWidth();
height = bitmap.GetHeight();
wxCoord x0 = x,
y0 = y,
width0 = width;
- if ( bitmap.Ok() )
+ if ( bitmap.IsOk() )
{
DrawBitmap(bitmap, x, y, true /* use mask */);
yUnderscore = 0;
// split the string into lines and draw each of them separately
+ //
+ // NB: while wxDC::DrawText() on some platforms supports drawing multi-line
+ // strings natively, this is not the case for all of them, notably not
+ // wxMSW which uses this function for multi-line texts, so we may only
+ // call DrawText() for single-line strings from here to avoid infinite
+ // recursion.
wxString curLine;
for ( wxString::const_iterator pc = text.begin(); ; ++pc )
{
- if ( *pc == _T('\n') || pc == text.end() )
+ if ( pc == text.end() || *pc == '\n' )
{
int xRealStart = x; // init it here to avoid compielr warnings
{
if ( pc - text.begin() == indexAccel )
{
- // remeber to draw underscore here
+ // remember to draw underscore here
GetTextExtent(curLine, &startUnderscore, NULL);
curLine += *pc;
GetTextExtent(curLine, &endUnderscore, NULL);
if ( startUnderscore != endUnderscore )
{
// it should be of the same colour as text
- SetPen(wxPen(GetTextForeground(), 0, wxSOLID));
+ SetPen(wxPen(GetTextForeground(), 0, wxPENSTYLE_SOLID));
- yUnderscore--;
+ // This adjustment is relatively arbitrary: we need to draw the
+ // underline slightly higher to avoid overflowing the character cell
+ // but whether we should do it 1, 2 or 3 pixels higher is not clear.
+ //
+ // The currently used value seems to be compatible with native MSW
+ // behaviour, i.e. it results in the same appearance of the owner-drawn
+ // and normal labels.
+ yUnderscore -= 2;
DrawLine(startUnderscore, yUnderscore, endUnderscore, yUnderscore);
}
*externalLeading = externalLeading2;
}
-void wxDC::GetLogicalOrigin(long *x, long *y) const
+void wxDC::GetLogicalOrigin(long *x, long *y) const
{
wxCoord x2, y2;
m_pimpl->DoGetLogicalOrigin(&x2, &y2);
*y = y2;
}
-void wxDC::GetDeviceOrigin(long *x, long *y) const
+void wxDC::GetDeviceOrigin(long *x, long *y) const
{
wxCoord x2, y2;
m_pimpl->DoGetDeviceOrigin(&x2, &y2);
*x = x2;
if ( y )
*y = y2;
- }
-
-void wxDC::GetClippingBox(long *x, long *y, long *w, long *h) const
+ }
+
+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 (y) *y = yy;
if (w) *w = ww;
if (h) *h = hh;
- }
-
+ }
+
+void wxDC::DrawObject(wxDrawObject* drawobject)
+{
+ drawobject->Draw(*this);
+ CalcBoundingBox(drawobject->MinX(),drawobject->MinY());
+ CalcBoundingBox(drawobject->MaxX(),drawobject->MaxY());
+}
+
#endif // WXWIN_COMPATIBILITY_2_8
+/*
+Notes for wxWidgets DrawEllipticArcRot(...)
-#else // wxUSE_NEW_DC
+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(...).
-// bool wxDCBase::sm_cacheing = false;
+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.
-IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
+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.
-// ============================================================================
-// implementation
-// ============================================================================
+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_DYNAMIC_CLASS(wxBufferedDC, wxMemoryDC)
-IMPLEMENT_ABSTRACT_CLASS(wxBufferedPaintDC, wxBufferedDC)
+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.
-wxDCBase::wxDCBase()
- : 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_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() /
- (double)wxGetDisplaySizeMM().GetWidth();
- m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() /
- (double)wxGetDisplaySizeMM().GetHeight();
-
- ResetBoundingBox();
- ResetClipping();
-}
+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.
-wxDCBase::~wxDCBase()
-{
-}
+Peter Lenhard
+p.lenhard@t-online.de
+*/
-#if WXWIN_COMPATIBILITY_2_6
-void wxDCBase::BeginDrawing()
+#ifdef __WXWINCE__
+void wxDCImpl::DoDrawEllipticArcRot( wxCoord x, wxCoord y,
+ wxCoord w, wxCoord h,
+ double sa, double ea, double angle )
{
-}
+ wxPointList list;
-void wxDCBase::EndDrawing()
-{
-}
-#endif // WXWIN_COMPATIBILITY_2_6
-
-#if WXWIN_COMPATIBILITY_2_8
- // for compatibility with the old code when wxCoord was long everywhere
-void wxDCBase::GetTextExtent(const wxString& string,
- long *x, long *y,
- long *descent,
- long *externalLeading,
- const wxFont *theFont) const
- {
- wxCoord x2, y2, descent2, externalLeading2;
- DoGetTextExtent(string, &x2, &y2,
- &descent2, &externalLeading2,
- theFont);
- if ( x )
- *x = x2;
- if ( y )
- *y = y2;
- if ( descent )
- *descent = descent2;
- if ( externalLeading )
- *externalLeading = externalLeading2;
- }
-
-void wxDCBase::GetLogicalOrigin(long *x, long *y) const
- {
- wxCoord x2, y2;
- DoGetLogicalOrigin(&x2, &y2);
- if ( x )
- *x = x2;
- if ( y )
- *y = y2;
- }
-
-void wxDCBase::GetDeviceOrigin(long *x, long *y) const
- {
- wxCoord x2, y2;
- DoGetDeviceOrigin(&x2, &y2);
- if ( x )
- *x = x2;
- if ( y )
- *y = y2;
- }
-
-void wxDCBase::GetClippingBox(long *x, long *y, long *w, long *h) const
- {
- wxCoord xx,yy,ww,hh;
- DoGetClippingBox(&xx, &yy, &ww, &hh);
- if (x) *x = xx;
- if (y) *y = yy;
- if (w) *w = ww;
- if (h) *h = hh;
- }
-#endif // WXWIN_COMPATIBILITY_2_8
-
-
-
-// ----------------------------------------------------------------------------
-// coordinate conversions and transforms
-// ----------------------------------------------------------------------------
-
-wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
-{
- return wxRound((double)(x - m_deviceOriginX - m_deviceLocalOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
-}
-
-wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
-{
- return wxRound((double)(y - m_deviceOriginY - m_deviceLocalOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
-}
-
-wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
-{
- return wxRound((double)(x) / m_scaleX);
-}
-
-wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
-{
- return wxRound((double)(y) / m_scaleY);
-}
-
-wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
-{
- return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX + m_deviceLocalOriginX;
-}
-
-wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
-{
- return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY + m_deviceLocalOriginY;
-}
-
-wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
-{
- return wxRound((double)(x) * m_scaleX);
-}
-
-wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
-{
- return wxRound((double)(y) * m_scaleY);
-}
-
-void wxDCBase::ComputeScaleAndOrigin()
-{
- m_scaleX = m_logicalScaleX * m_userScaleX;
- m_scaleY = m_logicalScaleY * m_userScaleY;
-}
-
-void wxDCBase::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 wxDCBase::SetUserScale( double x, double y )
-{
- // allow negative ? -> no
- m_userScaleX = x;
- m_userScaleY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::SetLogicalScale( double x, double y )
-{
- // allow negative ?
- m_logicalScaleX = x;
- m_logicalScaleY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::SetLogicalOrigin( wxCoord x, wxCoord y )
-{
- m_logicalOriginX = x * m_signX;
- m_logicalOriginY = y * m_signY;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::SetDeviceOrigin( wxCoord x, wxCoord y )
-{
- m_deviceOriginX = x;
- m_deviceOriginY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::SetDeviceLocalOrigin( wxCoord x, wxCoord y )
-{
- m_deviceLocalOriginX = x;
- m_deviceLocalOriginY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::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") );
-
- wxCoord x2 = x1 + width,
- y2 = y1 + height;
-
- // the pen width is calibrated to give 3 for width == height == 10
- wxDCPenChanger pen((wxDC&)*this,
- 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);
-}
-
-// ----------------------------------------------------------------------------
-// stubs for functions not implemented in all ports
-// ----------------------------------------------------------------------------
-
-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)
-{
- 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;
-}
-
-// ----------------------------------------------------------------------------
-// line/polygons
-// ----------------------------------------------------------------------------
-
-void wxDCBase::DrawLines(const wxPointList *list, wxCoord xoffset, wxCoord yoffset)
-{
- unsigned int n = list->GetCount();
- wxPoint *points = new wxPoint[n];
-
- unsigned int i = 0;
- wxPointList::compatibility_iterator node;
- for ( 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;
-}
-
-#if WXWIN_COMPATIBILITY_2_8
-void wxDCBase::DrawLines(const wxList *list, wxCoord xoffset, wxCoord yoffset )
-{
- unsigned int n = list->GetCount();
- wxPoint *points = new wxPoint[n];
-
- unsigned int i = 0;
- wxObjectList::compatibility_iterator node;
- for ( node = list->GetFirst(); node; node = node->GetNext(), i++ )
- {
- wxPoint *point = (wxPoint*) node->GetData();
- points[i].x = point->x;
- points[i].y = point->y;
- }
-
- DoDrawLines(n, points, xoffset, yoffset);
-
- delete [] points;
-}
-#endif // WXWIN_COMPATIBILITY_2_8
-
-
-void wxDCBase::DrawPolygon(const wxPointList *list,
- wxCoord xoffset, wxCoord yoffset,
- int fillStyle)
-{
- unsigned int n = list->GetCount();
- wxPoint *points = new wxPoint[n];
-
- unsigned int i = 0;
- wxPointList::compatibility_iterator node;
- for ( node = list->GetFirst(); node; node = node->GetNext(), i++ )
- {
- wxPoint *point = node->GetData();
- points[i].x = point->x;
- points[i].y = point->y;
- }
-
- DoDrawPolygon(n, points, xoffset, yoffset, fillStyle);
-
- delete [] points;
-}
-
-
-#if WXWIN_COMPATIBILITY_2_8
-void wxDCBase::DrawPolygon(const wxList *list,
- wxCoord xoffset, wxCoord yoffset,
- int fillStyle )
-{
- unsigned int n = list->GetCount();
- wxPoint *points = new wxPoint[n];
-
- unsigned int i = 0;
- wxObjectList::compatibility_iterator node;
- for ( node = list->GetFirst(); node; node = node->GetNext(), i++ )
- {
- wxPoint *point = (wxPoint*) node->GetData();
- points[i].x = point->x;
- points[i].y = point->y;
- }
-
- DoDrawPolygon(n, points, xoffset, yoffset, fillStyle);
-
- delete [] points;
-}
-#endif // WXWIN_COMPATIBILITY_2_8
-
-void
-wxDCBase::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;
-}
-
-// ----------------------------------------------------------------------------
-// splines
-// ----------------------------------------------------------------------------
-
-#if wxUSE_SPLINES
-
-void wxDCBase::DrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3)
-{
- wxPointList point_list;
-
- wxPoint *point1 = new wxPoint;
- point1->x = x1; point1->y = y1;
- point_list.Append( point1 );
-
- wxPoint *point2 = new wxPoint;
- point2->x = x2; point2->y = y2;
- point_list.Append( point2 );
-
- wxPoint *point3 = new wxPoint;
- point3->x = x3; point3->y = y3;
- point_list.Append( point3 );
-
- DrawSpline(&point_list);
-
- for( wxPointList::compatibility_iterator node = point_list.GetFirst(); node; node = node->GetNext() )
- {
- wxPoint *p = node->GetData();
- delete p;
- }
-}
-
-void wxDCBase::DrawSpline(int n, wxPoint points[])
-{
- wxPointList list;
- for (int i =0; i < n; i++)
- list.Append( &points[i] );
-
- DrawSpline(&list);
-}
-
-// ----------------------------------- spline code ----------------------------------------
-
-void wx_quadratic_spline(double a1, double b1, double a2, double b2,
- double a3, double b3, double a4, double b4);
-void wx_clear_stack();
-int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3,
- double *y3, double *x4, double *y4);
-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);
-
-wxPointList wx_spline_point_list;
-
-#define half(z1, z2) ((z1+z2)/2.0)
-#define THRESHOLD 5
-
-/* iterative version */
-
-void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4,
- double b4)
-{
- register double xmid, ymid;
- double x1, y1, x2, y2, x3, y3, x4, y4;
-
- wx_clear_stack();
- wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4);
-
- while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) {
- xmid = (double)half(x2, x3);
- ymid = (double)half(y2, y3);
- if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD &&
- fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) {
- wx_spline_add_point( x1, y1 );
- wx_spline_add_point( xmid, ymid );
- } else {
- wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3),
- (double)half(x3, x4), (double)half(y3, y4), x4, y4);
- wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2),
- (double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid);
- }
- }
-}
-
-/* utilities used by spline drawing routines */
-
-typedef struct wx_spline_stack_struct {
- double x1, y1, x2, y2, x3, y3, x4, y4;
-} Stack;
-
-#define SPLINE_STACK_DEPTH 20
-static Stack wx_spline_stack[SPLINE_STACK_DEPTH];
-static Stack *wx_stack_top;
-static int wx_stack_count;
-
-void wx_clear_stack()
-{
- wx_stack_top = wx_spline_stack;
- wx_stack_count = 0;
-}
-
-void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
-{
- wx_stack_top->x1 = x1;
- wx_stack_top->y1 = y1;
- wx_stack_top->x2 = x2;
- wx_stack_top->y2 = y2;
- wx_stack_top->x3 = x3;
- wx_stack_top->y3 = y3;
- wx_stack_top->x4 = x4;
- wx_stack_top->y4 = y4;
- wx_stack_top++;
- wx_stack_count++;
-}
-
-int wx_spline_pop(double *x1, double *y1, double *x2, double *y2,
- double *x3, double *y3, double *x4, double *y4)
-{
- if (wx_stack_count == 0)
- return (0);
- wx_stack_top--;
- wx_stack_count--;
- *x1 = wx_stack_top->x1;
- *y1 = wx_stack_top->y1;
- *x2 = wx_stack_top->x2;
- *y2 = wx_stack_top->y2;
- *x3 = wx_stack_top->x3;
- *y3 = wx_stack_top->y3;
- *x4 = wx_stack_top->x4;
- *y4 = wx_stack_top->y4;
- return (1);
-}
-
-static bool wx_spline_add_point(double x, double y)
-{
- 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)
-{
- 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();
- }
-}
-
-#if WXWIN_COMPATIBILITY_2_8
-void wxDCBase::DrawSpline(const wxList *points)
-{
- wxPointList list;
- wxObjectList::compatibility_iterator node = points->GetFirst();
- while (node)
- {
- list.Append( (wxPoint*) node->GetData() );
- node = node->GetNext();
- }
- DoDrawSpline( &list );
-}
-#endif // WXWIN_COMPATIBILITY_2_8
-
-void wxDCBase::DoDrawSpline( const wxPointList *points )
-{
- wxCHECK_RET( Ok(), wxT("invalid window dc") );
-
- wxPoint *p;
- double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
- double x1, y1, x2, y2;
-
- wxPointList::compatibility_iterator node = points->GetFirst();
- if (!node)
- // empty list
- return;
-
- p = node->GetData();
-
- x1 = p->x;
- y1 = p->y;
-
- node = node->GetNext();
- p = 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 = 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;
- }
-
- return true;
-}
-
-
-// ----------------------------------------------------------------------------
-// enhanced text drawing
-// ----------------------------------------------------------------------------
-
-void wxDCBase::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
- 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 == text.end() )
- {
- break;
- }
- else // '\n'
- {
- curLine.clear();
- }
- }
- else
- {
- curLine += *pc;
- }
- }
-
- 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)
-{
- // 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;
- }
-
- 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 == text.end() || *pc == _T('\n') )
- {
- 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
-
- 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
- {
- if ( pc - text.begin() == indexAccel )
- {
- // remeber to draw underscore here
- GetTextExtent(curLine, &startUnderscore, NULL);
- curLine += *pc;
- GetTextExtent(curLine, &endUnderscore, NULL);
-
- yUnderscore = y + heightLine;
- }
- else
- {
- curLine += *pc;
- }
- }
- }
-
- // draw the underscore if found
- if ( startUnderscore != endUnderscore )
- {
- // 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);
-}
-
-
-void wxDCBase::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 )
- {
- 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)
- {
- x -= xDelta;
- if (nR1 > nR2)
- nR = nR1 - (nR1-nR2)*(w-x)/w;
- else
- nR = nR1 + (nR2-nR1)*(w-x)/w;
-
- if (nG1 > nG2)
- nG = nG1 - (nG1-nG2)*(w-x)/w;
- else
- nG = nG1 + (nG2-nG1)*(w-x)/w;
-
- 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)
- DrawRectangle(rect.GetRight()-x-xDelta+1, rect.GetTop(),
- xDelta, rect.GetHeight());
- else //nDirection == wxWEST
- DrawRectangle(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;
-
- while (y > 0)
- {
- y -= yDelta;
- if (nR1 > nR2)
- nR = nR1 - (nR1-nR2)*(w-y)/w;
- else
- nR = nR1 + (nR2-nR1)*(w-y)/w;
-
- if (nG1 > nG2)
- nG = nG1 - (nG1-nG2)*(w-y)/w;
- else
- 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)
- DrawRectangle(rect.GetLeft(), rect.GetTop()+y,
- rect.GetWidth(), yDelta);
- else //nDirection == wxSOUTH
- DrawRectangle(rect.GetLeft(), rect.GetBottom()-y-yDelta+1,
- rect.GetWidth(), yDelta);
- }
- }
-
- SetPen(oldPen);
- SetBrush(oldBrush);
-}
-
-void wxDCBase::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++ )
- {
- //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));
- DrawPoint(wxPoint(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.
-
-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 )
-{
- wxPointList list;
-
- CalculateEllipticPoints( &list, x, y, w, h, sa, ea );
- Rotate( &list, angle, wxPoint( x+w/2, y+h/2 ) );
+ 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( new wxPoint( x+w/2, y+h/2 ) );
} // DrawEllipticArcRot
-void wxDCBase::Rotate( wxPointList* points, double angle, wxPoint center )
+void wxDCImpl::Rotate( wxPointList* points, double angle, wxPoint center )
{
if( angle != 0.0 )
{
}
}
-void wxDCBase::CalculateEllipticPoints( wxPointList* points,
+void wxDCImpl::CalculateEllipticPoints( wxPointList* points,
wxCoord xStart, wxCoord yStart,
wxCoord w, wxCoord h,
double sa, double ea )
y2 = y2-y-y+1;
--y;
}
- // old y now to big: set point with old y, old x
+ // old y now too big: set point with old y, old x
if( bNewPoint && x>1)
{
int x1 = x - 1;
#endif // __WXWINCE__
-#endif // wxUSE_NEW_DC
+float wxDCImpl::GetFontPointSizeAdjustment(float dpi)
+{
+ // wxMSW has long-standing bug where wxFont point size is interpreted as
+ // "pixel size corresponding to given point size *on screen*". In other
+ // words, on a typical 600dpi printer and a typical 96dpi screen, fonts
+ // are ~6 times smaller when printing. Unfortunately, this bug is so severe
+ // that *all* printing code has to account for it and consequently, other
+ // ports need to emulate this bug too:
+ const wxSize screenPPI = wxGetDisplayPPI();
+ return float(screenPPI.y) / dpi;
+}
projects / wxWidgets.git / blobdiff