/////////////////////////////////////////////////////////////////////////////
-// Name: common/dcbase.cpp
+// Name: src/common/dcbase.cpp
// Purpose: generic methods of the wxDC Class
// Author: Vadim Zeitlin
// Modified by:
#endif
#include "wx/dc.h"
-#include "wx/math.h"
+#include "wx/dcclient.h"
+#include "wx/dcmemory.h"
+#include "wx/dcscreen.h"
+#include "wx/dcbuffer.h" // for IMPLEMENT_DYNAMIC_CLASS
+
+#ifndef WX_PRECOMP
+ #include "wx/math.h"
+#endif
+
+
+
+#if wxUSE_NEW_DC
+
+//----------------------------------------------------------------------------
+// wxDCFactory
+//----------------------------------------------------------------------------
+
+wxDCFactory *wxDCFactory::m_factory = NULL;
+
+void wxDCFactory::SetDCFactory( wxDCFactory *factory )
+{
+ if (wxDCFactory::m_factory)
+ delete wxDCFactory::m_factory;
+
+ wxDCFactory::m_factory = factory;
+}
+
+wxDCFactory *wxDCFactory::GetFactory()
+{
+ if (!wxDCFactory::m_factory)
+ wxDCFactory::m_factory = new wxNativeDCFactory;
+
+ return wxDCFactory::m_factory;
+}
+
+//-----------------------------------------------------------------------------
+// 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 )
+{
+#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
+}
+
+wxImplDC* 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
+}
+
+wxImplDC* wxNativeDCFactory::CreatePaintDC( wxPaintDC *owner )
+{
+#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
+}
+
+wxImplDC* wxNativeDCFactory::CreatePaintDC( wxPaintDC *owner, wxWindow *window )
+{
+#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
+}
+
+wxImplDC* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner )
+{
+#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
+}
+
+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
+}
+
+wxImplDC* 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
+}
+
+wxImplDC* 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
+}
+
+//-----------------------------------------------------------------------------
+// wxWindowDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
+
+wxWindowDC::wxWindowDC()
+{
+ 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 );
+}
+
+wxClientDC::wxClientDC( wxWindow *win )
+{
+ wxDCFactory *factory = wxDCFactory::GetFactory();
+ m_pimpl = factory->CreateClientDC( this, win );
+}
+
+//-----------------------------------------------------------------------------
+// wxMemoryDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxDC)
+
+wxMemoryDC::wxMemoryDC()
+{
+ wxDCFactory *factory = wxDCFactory::GetFactory();
+ m_pimpl = factory->CreateMemoryDC( this );
+}
+
+wxMemoryDC::wxMemoryDC( wxBitmap& bitmap )
+{
+ wxDCFactory *factory = wxDCFactory::GetFactory();
+ m_pimpl = factory->CreateMemoryDC( this, bitmap );
+}
+
+wxMemoryDC::wxMemoryDC( wxDC *dc )
+{
+ wxDCFactory *factory = wxDCFactory::GetFactory();
+ m_pimpl = factory->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();
+
+#ifdef __WXGTK__
+ wxGTKMemoryImplDC *mem_pimpl = wxDynamicCast( m_pimpl, wxGTKMemoryImplDC );
+#else
+ // TODO
+#endif
+ if (mem_pimpl)
+ mem_pimpl->DoSelect(bmp);
+}
+
+void wxMemoryDC::SelectObjectAsSource(const wxBitmap& bmp)
+{
+#ifdef __WXGTK__
+ wxGTKMemoryImplDC *mem_pimpl = wxDynamicCast( m_pimpl, wxGTKMemoryImplDC );
+#else
+ // TODO
+#endif
+ mem_pimpl->DoSelect(bmp);
+}
+
+const wxBitmap& wxMemoryDC::GetSelectedBitmap() const
+{
+#ifdef __WXGTK__
+ wxGTKMemoryImplDC *mem_pimpl = wxDynamicCast( m_pimpl, wxGTKMemoryImplDC );
+#else
+ // TODO
+#endif
+ if (mem_pimpl)
+ return mem_pimpl->DoGetSelectedBitmap();
+
+ return wxNullBitmap;
+}
+
+wxBitmap& wxMemoryDC::GetSelectedBitmap()
+{
+#ifdef __WXGTK__
+ wxGTKMemoryImplDC *mem_pimpl = wxDynamicCast( m_pimpl, wxGTKMemoryImplDC );
+#else
+ // TODO
+#endif
+
+ if (mem_pimpl)
+ return mem_pimpl->DoGetSelectedBitmap();
+
+ return wxNullBitmap;
+}
+
+
+//-----------------------------------------------------------------------------
+// wxPaintDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxDC)
+
+wxPaintDC::wxPaintDC()
+{
+ wxDCFactory *factory = wxDCFactory::GetFactory();
+ m_pimpl = factory->CreatePaintDC( this );
+}
+
+wxPaintDC::wxPaintDC( wxWindow *win )
+{
+ wxDCFactory *factory = wxDCFactory::GetFactory();
+ m_pimpl = factory->CreatePaintDC( this, win );
+}
+
+//-----------------------------------------------------------------------------
+// wxScreenDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxScreenDC, wxWindowDC)
+
+wxScreenDC::wxScreenDC()
+{
+ wxDCFactory *factory = wxDCFactory::GetFactory();
+ m_pimpl = factory->CreateScreenDC( this );
+}
+
+//-----------------------------------------------------------------------------
+// wxImplDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxImplDC, wxObject)
+
+wxImplDC::wxImplDC( wxDC *owner )
+ : m_colour(wxColourDisplay())
+ , m_ok(true)
+ , m_clipping(false)
+ , m_isInteractive(0)
+ , m_isBBoxValid(false)
+ , m_logicalOriginX(0), m_logicalOriginY(0)
+ , m_deviceOriginX(0), m_deviceOriginY(0)
+ , m_deviceLocalOriginX(0), m_deviceLocalOriginY(0)
+ , m_logicalScaleX(1.0), m_logicalScaleY(1.0)
+ , m_userScaleX(1.0), m_userScaleY(1.0)
+ , m_scaleX(1.0), m_scaleY(1.0)
+ , m_signX(1), m_signY(1)
+ , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
+ , m_clipX1(0), m_clipY1(0), m_clipX2(0), m_clipY2(0)
+ , m_logicalFunction(wxCOPY)
+ , m_backgroundMode(wxTRANSPARENT)
+ , m_mappingMode(wxMM_TEXT)
+ , m_pen()
+ , m_brush()
+ , m_backgroundBrush(*wxTRANSPARENT_BRUSH)
+ , m_textForegroundColour(*wxBLACK)
+ , m_textBackgroundColour(*wxWHITE)
+ , m_font()
+#if wxUSE_PALETTE
+ , m_palette()
+ , m_hasCustomPalette(false)
+#endif // wxUSE_PALETTE
+{
+ m_owner = owner;
+
+ m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() /
+ (double)wxGetDisplaySizeMM().GetWidth();
+ m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() /
+ (double)wxGetDisplaySizeMM().GetHeight();
+
+ ResetBoundingBox();
+ ResetClipping();
+}
+
+wxImplDC::~wxImplDC()
+{
+}
+
+// ----------------------------------------------------------------------------
+// coordinate conversions and transforms
+// ----------------------------------------------------------------------------
+
+wxCoord wxImplDC::DeviceToLogicalX(wxCoord x) const
+{
+ return wxRound((double)(x - m_deviceOriginX - m_deviceLocalOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
+}
+
+wxCoord wxImplDC::DeviceToLogicalY(wxCoord y) const
+{
+ return wxRound((double)(y - m_deviceOriginY - m_deviceLocalOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
+}
+
+wxCoord wxImplDC::DeviceToLogicalXRel(wxCoord x) const
+{
+ return wxRound((double)(x) / m_scaleX);
+}
+
+wxCoord wxImplDC::DeviceToLogicalYRel(wxCoord y) const
+{
+ return wxRound((double)(y) / m_scaleY);
+}
+
+wxCoord wxImplDC::LogicalToDeviceX(wxCoord x) const
+{
+ return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX * m_signY + m_deviceLocalOriginX;
+}
+
+wxCoord wxImplDC::LogicalToDeviceY(wxCoord y) const
+{
+ return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY * m_signY + m_deviceLocalOriginY;
+}
+
+wxCoord wxImplDC::LogicalToDeviceXRel(wxCoord x) const
+{
+ return wxRound((double)(x) * m_scaleX);
+}
+
+wxCoord wxImplDC::LogicalToDeviceYRel(wxCoord y) const
+{
+ return wxRound((double)(y) * m_scaleY);
+}
+
+void wxImplDC::ComputeScaleAndOrigin()
+{
+ m_scaleX = m_logicalScaleX * m_userScaleX;
+ m_scaleY = m_logicalScaleY * m_userScaleY;
+}
+
+void wxImplDC::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 wxImplDC::SetUserScale( double x, double y )
+{
+ // allow negative ? -> no
+ m_userScaleX = x;
+ m_userScaleY = y;
+ ComputeScaleAndOrigin();
+}
+
+void wxImplDC::SetLogicalScale( double x, double y )
+{
+ // allow negative ?
+ m_logicalScaleX = x;
+ m_logicalScaleY = y;
+ ComputeScaleAndOrigin();
+}
+
+void wxImplDC::SetLogicalOrigin( wxCoord x, wxCoord y )
+{
+ m_logicalOriginX = x * m_signX;
+ m_logicalOriginY = y * m_signY;
+ ComputeScaleAndOrigin();
+}
+
+void wxImplDC::SetDeviceOrigin( wxCoord x, wxCoord y )
+{
+ m_deviceOriginX = x;
+ m_deviceOriginY = y;
+ ComputeScaleAndOrigin();
+}
+
+void wxImplDC::SetDeviceLocalOrigin( wxCoord x, wxCoord y )
+{
+ m_deviceLocalOriginX = x;
+ m_deviceLocalOriginY = y;
+ ComputeScaleAndOrigin();
+}
+
+void wxImplDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
+{
+ // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there
+ // wxWidgets 2.9: no longer override it
+ m_signX = (xLeftRight ? 1 : -1);
+ m_signY = (yBottomUp ? -1 : 1);
+ ComputeScaleAndOrigin();
+}
+
+
+// Each element of the widths array will be the width of the string up to and
+// including the corresponding character in text. This is the generic
+// implementation, the port-specific classes should do this with native APIs
+// if available and if faster. Note: pango_layout_index_to_pos is much slower
+// than calling GetTextExtent!!
+
+#define FWC_SIZE 256
+
+class FontWidthCache
+{
+public:
+ FontWidthCache() : m_scaleX(1), m_widths(NULL) { }
+ ~FontWidthCache() { delete []m_widths; }
+
+ void Reset()
+ {
+ if (!m_widths)
+ m_widths = new int[FWC_SIZE];
+
+ memset(m_widths, 0, sizeof(int)*FWC_SIZE);
+ }
+
+ wxFont m_font;
+ double m_scaleX;
+ int *m_widths;
+};
+
+static FontWidthCache s_fontWidthCache;
+
+bool wxImplDC::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
+{
+ int totalWidth = 0;
+
+ const size_t len = text.length();
+ widths.Empty();
+ widths.Add(0, len);
+
+ // reset the cache if font or horizontal scale have changed
+ if ( !s_fontWidthCache.m_widths ||
+ !wxIsSameDouble(s_fontWidthCache.m_scaleX, m_scaleX) ||
+ (s_fontWidthCache.m_font != GetFont()) )
+ {
+ s_fontWidthCache.Reset();
+ s_fontWidthCache.m_font = GetFont();
+ s_fontWidthCache.m_scaleX = m_scaleX;
+ }
+
+ // Calculate the position of each character based on the widths of
+ // the previous characters
+ int w, h;
+ for ( size_t i = 0; i < len; i++ )
+ {
+ const wxChar c = text[i];
+ unsigned int c_int = (unsigned int)c;
+
+ if ((c_int < FWC_SIZE) && (s_fontWidthCache.m_widths[c_int] != 0))
+ {
+ w = s_fontWidthCache.m_widths[c_int];
+ }
+ else
+ {
+ DoGetTextExtent(c, &w, &h);
+ if (c_int < FWC_SIZE)
+ s_fontWidthCache.m_widths[c_int] = w;
+ }
+
+ totalWidth += w;
+ widths[i] = totalWidth;
+ }
+
+ return true;
+}
+
+void wxImplDC::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 ( const wxChar *pc = text; ; pc++ )
+ {
+ 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
+ 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 == _T('\n') )
+ {
+ curLine.clear();
+ }
+ else
+ {
+ // the end of string
+ break;
+ }
+ }
+ else
+ {
+ curLine += *pc;
+ }
+ }
+
+ if ( x )
+ *x = widthTextMax;
+ if ( y )
+ *y = heightTextTotal;
+ if ( h )
+ *h = heightLine;
+}
+
+void wxImplDC::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
+wxImplDC::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;
+}
+
+#if 0
+void wxImplDC::DrawLines(const wxList *list, wxCoord xoffset, wxCoord yoffset)
+{
+ int n = list->GetCount();
+ wxPoint *points = new wxPoint[n];
+
+ int i = 0;
+ for ( wxList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ )
+ {
+ wxPoint *point = (wxPoint *)node->GetData();
+ points[i].x = point->x;
+ points[i].y = point->y;
+ }
+
+ DoDrawLines(n, points, xoffset, yoffset);
+
+ delete [] points;
+}
+
+void wxImplDC::DrawPolygon(const wxList *list,
+ wxCoord xoffset, wxCoord yoffset,
+ int fillStyle)
+{
+ int n = list->GetCount();
+ wxPoint *points = new wxPoint[n];
+
+ int i = 0;
+ for ( wxList::compatibility_iterator 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
+
+void
+wxImplDC::DoDrawPolyPolygon(int n,
+ int count[],
+ wxPoint points[],
+ wxCoord xoffset, wxCoord yoffset,
+ int fillStyle)
+{
+ if ( n == 1 )
+ {
+ DoDrawPolygon(count[0], points, xoffset, yoffset, fillStyle);
+ return;
+ }
+
+ int i, j, lastOfs;
+ wxPoint* pts;
+ wxPen pen;
+
+ for (i = j = lastOfs = 0; i < n; i++)
+ {
+ lastOfs = j;
+ j += count[i];
+ }
+ pts = new wxPoint[j+n-1];
+ for (i = 0; i < j; i++)
+ pts[i] = points[i];
+ for (i = 2; i <= n; i++)
+ {
+ lastOfs -= count[n-i];
+ pts[j++] = pts[lastOfs];
+ }
+
+ pen = GetPen();
+ SetPen(wxPen(*wxBLACK, 0, wxTRANSPARENT));
+ DoDrawPolygon(j, pts, xoffset, yoffset, fillStyle);
+ SetPen(pen);
+ for (i = j = 0; i < n; i++)
+ {
+ DoDrawLines(count[i], pts+j, xoffset, yoffset);
+ j += count[i];
+ }
+ delete[] pts;
+}
+
+#if wxUSE_SPLINES
+
+// TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?)
+void wxImplDC::DoDrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3)
+{
+ wxList point_list;
+
+ wxPoint *point1 = new wxPoint;
+ point1->x = x1; point1->y = y1;
+ point_list.Append((wxObject*)point1);
+
+ wxPoint *point2 = new wxPoint;
+ point2->x = x2; point2->y = y2;
+ point_list.Append((wxObject*)point2);
+
+ wxPoint *point3 = new wxPoint;
+ point3->x = x3; point3->y = y3;
+ point_list.Append((wxObject*)point3);
+
+ DoDrawSpline(&point_list);
+
+ for( wxList::compatibility_iterator node = point_list.GetFirst(); node; node = node->GetNext() )
+ {
+ wxPoint *p = (wxPoint *)node->GetData();
+ delete p;
+ }
+}
+
+void wxImplDC::DoDrawSpline(int n, wxPoint points[])
+{
+ wxList list;
+ for (int i =0; i < n; i++)
+ {
+ list.Append((wxObject*)&points[i]);
+ }
+
+ DoDrawSpline(&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(wxDC *dc);
+
+wxList 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 ;
+ point->x = (int) x;
+ point->y = (int) y;
+ wx_spline_point_list.Append((wxObject*)point);
+ return true;
+}
+
+static void wx_spline_draw_point_array(wxDC *dc)
+{
+// dc->DrawLines(&wx_spline_point_list, 0, 0 ); wxList
+ 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 wxImplDC::DoDrawSpline( wxList *points )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ wxPoint *p;
+ double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
+ double x1, y1, x2, y2;
+
+ wxList::compatibility_iterator node = points->GetFirst();
+ 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( m_owner );
+}
+
+#endif // wxUSE_SPLINES
+
+
+
+void wxImplDC::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)
+ DoDrawRectangle(rect.GetRight()-x-xDelta+1, rect.GetTop(),
+ xDelta, rect.GetHeight());
+ else //nDirection == wxWEST
+ DoDrawRectangle(rect.GetLeft()+x, rect.GetTop(),
+ xDelta, rect.GetHeight());
+ }
+ }
+ else // nDirection == wxNORTH || nDirection == wxSOUTH
+ {
+ wxInt32 y = rect.GetHeight();
+ wxInt32 w = y; // height of area to shade
+ wxInt32 yDelta = w/255; // height of one shade bend
+ if (yDelta < 1)
+ yDelta = 1;
+
+ 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)
+ DoDrawRectangle(rect.GetLeft(), rect.GetTop()+y,
+ rect.GetWidth(), yDelta);
+ else //nDirection == wxSOUTH
+ DoDrawRectangle(rect.GetLeft(), rect.GetBottom()-y-yDelta+1,
+ rect.GetWidth(), yDelta);
+ }
+ }
+
+ SetPen(oldPen);
+ SetBrush(oldBrush);
+}
+
+void wxImplDC::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));
+ DoDrawPoint(x + rect.GetLeft(), y + rect.GetTop());
+ }
+ }
+ //return old pen color
+ m_pen.SetColour(oldPenColour);
+}
+
+//-----------------------------------------------------------------------------
+// wxDC
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
+
+void wxDC::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 == _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
+
+ 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);
+}
+
+#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 // WXWIN_COMPATIBILITY_2_8
+
+
+#else // wxUSE_NEW_DC
+
// bool wxDCBase::sm_cacheing = false;
+IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
+
// ============================================================================
// implementation
// ============================================================================
+IMPLEMENT_DYNAMIC_CLASS(wxBufferedDC, wxMemoryDC)
+IMPLEMENT_ABSTRACT_CLASS(wxBufferedPaintDC, wxBufferedDC)
+
+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();
+}
+
+wxDCBase::~wxDCBase()
+{
+}
+
#if WXWIN_COMPATIBILITY_2_6
void wxDCBase::BeginDrawing()
{
}
#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
// ----------------------------------------------------------------------------
wxCoord x2 = x1 + width,
y2 = y1 + height;
- // this is to yield width of 3 for width == height == 10
- SetPen(wxPen(GetTextForeground(), (width + height + 1) / 7, wxSOLID));
+ // the pen width is calibrated to give 3 for width == height == 10
+ wxDCPenChanger pen((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
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
// ----------------------------------------------------------------------------
double x1, y1, x2, y2;
wxList::compatibility_iterator node = points->GetFirst();
- if (node == wxList::compatibility_iterator())
+ if (!node)
// empty list
return;
{
int totalWidth = 0;
- const size_t len = text.Length();
+ const size_t len = text.length();
widths.Empty();
widths.Add(0, len);
wxCoord *x,
wxCoord *y,
wxCoord *h,
- wxFont *font)
+ const wxFont *font) const
{
wxCoord widthTextMax = 0, widthLine,
heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
wxString curLine;
- for ( const wxChar *pc = text; ; pc++ )
+ for ( wxString::const_iterator pc = text.begin(); ; ++pc )
{
- if ( *pc == _T('\n') || *pc == _T('\0') )
+ if ( pc == text.end() || *pc == _T('\n') )
{
if ( curLine.empty() )
{
heightTextTotal += heightLine;
}
- if ( *pc == _T('\n') )
+ if ( pc == text.end() )
{
- curLine.clear();
+ break;
}
- else
+ else // '\n'
{
- // the end of string
- break;
+ curLine.clear();
}
}
else
// split the string into lines and draw each of them separately
wxString curLine;
- for ( const wxChar *pc = text; ; pc++ )
+ for ( wxString::const_iterator pc = text.begin(); ; ++pc )
{
- if ( *pc == _T('\n') || *pc == _T('\0') )
+ if ( pc == text.end() || *pc == _T('\n') )
{
int xRealStart = x; // init it here to avoid compielr warnings
endUnderscore += xRealStart;
}
- if ( *pc == _T('\0') )
+ if ( pc == text.end() )
break;
curLine.clear();
}
else // not end of line
{
- if ( pc - text.c_str() == indexAccel )
+ if ( pc - text.begin() == indexAccel )
{
// remeber to draw underscore here
GetTextExtent(curLine, &startUnderscore, NULL);
{
// save old pen
wxPen oldPen = m_pen;
-
- wxUint8 nR1 = destColour.Red();
- wxUint8 nG1 = destColour.Green();
- wxUint8 nB1 = destColour.Blue();
- wxUint8 nR2 = initialColour.Red();
- wxUint8 nG2 = initialColour.Green();
- wxUint8 nB2 = initialColour.Blue();
+ 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 )
else
nB = nB1 + (nB2-nB1)*(w-x)/w;
- SetPen(wxPen(wxColour(nR, nG, nB), 1, wxSOLID));
+ wxColour colour(nR,nG,nB);
+ SetPen(wxPen(colour, 1, wxSOLID));
+ SetBrush(wxBrush(colour));
if(nDirection == wxEAST)
- DrawRectangle(rect.GetLeft()+x, rect.GetTop(),
+ DrawRectangle(rect.GetRight()-x-xDelta+1, rect.GetTop(),
xDelta, rect.GetHeight());
else //nDirection == wxWEST
- DrawRectangle(rect.GetRight()-x-xDelta, rect.GetTop(),
+ DrawRectangle(rect.GetLeft()+x, rect.GetTop(),
xDelta, rect.GetHeight());
}
}
else
nB = nB1 + (nB2-nB1)*(w-y)/w;
- SetPen(wxPen(wxColour(nR, nG, nB), 1, wxSOLID));
+ 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,
+ DrawRectangle(rect.GetLeft(), rect.GetBottom()-y-yDelta+1,
rect.GetWidth(), yDelta);
}
}
SetPen(oldPen);
+ SetBrush(oldBrush);
}
-void wxDCBase::GradientFillConcentric(const wxRect& rect,
+void wxDCBase::DoGradientFillConcentric(const wxRect& rect,
const wxColour& initialColour,
const wxColour& destColour,
const wxPoint& circleCenter)
wxUint8 nR, nG, nB;
- //offsets of the current pixel
- wxInt32 x, y;
-
- //Color difference
- wxInt32 nGradient;
-
//Radius
wxInt32 cx = rect.GetWidth() / 2;
wxInt32 cy = rect.GetHeight() / 2;
wxInt32 nCircleOffX = circleCenter.x - (rect.GetWidth() / 2);
wxInt32 nCircleOffY = circleCenter.y - (rect.GetHeight() / 2);
- for (x = 0; x < rect.GetWidth(); x++)
+ for ( wxInt32 x = 0; x < rect.GetWidth(); x++ )
{
- for (y = 0; y < rect.GetHeight(); y++)
+ for ( wxInt32 y = 0; y < rect.GetHeight(); y++ )
{
//get color difference
- nGradient = (
- (nRadius -
- (wxInt32)sqrt(
- pow(x - cx - nCircleOffX, 2) +
- pow(y - cy - nCircleOffY, 2)
- )
- ) * 100
- ) / nRadius;
+ 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 = nR1 + ((nR2 - nR1) * nGradient / 100);
- nG = nG1 + ((nG2 - nG1) * nGradient / 100);
- nB = nB1 + ((nB2 - nB1) * nGradient / 100);
+ 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));
list.Append( (wxObject*) new wxPoint( x+w/2, y+h/2 ) );
// copy list into array and delete list elements
- int n = list.Number();
+ int n = list.GetCount();
wxPoint *points = new wxPoint[n];
int i = 0;
wxNode* node = 0;
- for ( node = list.First(); node; node = node->Next(), i++ )
+ for ( node = list.GetFirst(); node; node = node->GetNext(), i++ )
{
- wxPoint *point = (wxPoint *)node->Data();
+ wxPoint *point = (wxPoint *)node->GetData();
points[i].x = point->x;
points[i].y = point->y;
delete point;
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->First(); node; node = node->Next() )
+ for ( wxNode* node = points->GetFirst(); node; node = node->GetNext() )
{
- wxPoint* point = (wxPoint*)node->Data();
+ wxPoint* point = (wxPoint*)node->GetData();
// transform coordinates, if necessary
if( center.x ) point->x -= center.x;
bool bForceTurn = ( sq == eq && sa > ea );
while( !bReady )
{
- for( wxNode *node = pointsarray[q].First(); node; node = node->Next() )
+ for( wxNode *node = pointsarray[q].GetFirst(); node; node = node->GetNext() )
{
// once: go to starting point in start quadrant
if( !bStarted &&
(
- ( (wxPoint*) node->Data() )->x < xsa+1 && q <= 1
+ ( (wxPoint*) node->GetData() )->x < xsa+1 && q <= 1
||
- ( (wxPoint*) node->Data() )->x > xsa-1 && q >= 2
+ ( (wxPoint*) node->GetData() )->x > xsa-1 && q >= 2
)
)
{
{
if( q != eq || bForceTurn
||
- ( (wxPoint*) node->Data() )->x > xea+1 && q <= 1
+ ( (wxPoint*) node->GetData() )->x > xea+1 && q <= 1
||
- ( (wxPoint*) node->Data() )->x < xea-1 && q >= 2
+ ( (wxPoint*) node->GetData() )->x < xea-1 && q >= 2
)
{
// copy point
- wxPoint* pPoint = new wxPoint( *((wxPoint*) node->Data() ) );
+ wxPoint* pPoint = new wxPoint( *((wxPoint*) node->GetData() ) );
points->Append( (wxObject*) pPoint );
}
- else if( q == eq && !bForceTurn || ( (wxPoint*) node->Data() )->x == xea)
+ else if( q == eq && !bForceTurn || ( (wxPoint*) node->GetData() )->x == xea)
{
bReady = true;
}
// delete points
for( q = 0; q < 4; ++q )
{
- for( wxNode *node = pointsarray[q].First(); node; node = node->Next() )
+ for( wxNode *node = pointsarray[q].GetFirst(); node; node = node->GetNext() )
{
- wxPoint *p = (wxPoint *)node->Data();
+ wxPoint *p = (wxPoint *)node->GetData();
delete p;
}
}
}
else
{
+ wxNode* node;
// copy whole ellipse, wxPoints will be deleted outside
- for( wxNode *node = pointsarray[0].First(); node; node = node->Next() )
+ for( node = pointsarray[0].GetFirst(); node; node = node->GetNext() )
{
- wxObject *p = node->Data();
+ wxObject *p = node->GetData();
points->Append( p );
}
- for( node = pointsarray[1].First(); node; node = node->Next() )
+ for( node = pointsarray[1].GetFirst(); node; node = node->GetNext() )
{
- wxObject *p = node->Data();
+ wxObject *p = node->GetData();
points->Append( p );
}
- for( node = pointsarray[2].First(); node; node = node->Next() )
+ for( node = pointsarray[2].GetFirst(); node; node = node->GetNext() )
{
- wxObject *p = node->Data();
+ wxObject *p = node->GetData();
points->Append( p );
}
- for( node = pointsarray[3].First(); node; node = node->Next() )
+ for( node = pointsarray[3].GetFirst(); node; node = node->GetNext() )
{
- wxObject *p = node->Data();
+ wxObject *p = node->GetData();
points->Append( p );
}
} // not iUseAngles
} // CalculateEllipticPoints
-#endif
+#endif // __WXWINCE__
+#endif // wxUSE_NEW_DC
projects / wxWidgets.git / blobdiff