X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/250e4028f86b5c7b1c31011faef839054c58274e..eea4d01c65f9b29baa1193db762b4c6b8144af24:/src/common/dcbase.cpp diff --git a/src/common/dcbase.cpp b/src/common/dcbase.cpp index d3218785be..a8b4420651 100644 --- a/src/common/dcbase.cpp +++ b/src/common/dcbase.cpp @@ -25,43 +25,622 @@ #endif #include "wx/dc.h" +#include "wx/dcclient.h" +#include "wx/dcmemory.h" +#include "wx/dcscreen.h" +#include "wx/dcprint.h" +#include "wx/prntbase.h" +#include "wx/scopeguard.h" #ifndef WX_PRECOMP #include "wx/math.h" + #include "wx/module.h" + #include "wx/window.h" #endif -// bool wxDCBase::sm_cacheing = false; +#ifdef __WXMSW__ + #include "wx/msw/dcclient.h" + #include "wx/msw/dcmemory.h" + #include "wx/msw/dcscreen.h" +#endif -IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject) +#ifdef __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 + +#ifdef __WXCOCOA__ + #include "wx/cocoa/dcclient.h" + #include "wx/cocoa/dcmemory.h" + #include "wx/cocoa/dcscreen.h" +#endif + +#ifdef __WXMOTIF__ + #include "wx/motif/dcclient.h" + #include "wx/motif/dcmemory.h" + #include "wx/motif/dcscreen.h" +#endif + +#ifdef __WXX11__ + #include "wx/x11/dcclient.h" + #include "wx/x11/dcmemory.h" + #include "wx/x11/dcscreen.h" +#endif + +#ifdef __WXDFB__ + #include "wx/dfb/dcclient.h" + #include "wx/dfb/dcmemory.h" + #include "wx/dfb/dcscreen.h" +#endif + +#ifdef __WXPALMOS__ + #include "wx/palmos/dcclient.h" + #include "wx/palmos/dcmemory.h" + #include "wx/palmos/dcscreen.h" +#endif + +//---------------------------------------------------------------------------- +// wxDCFactory +//---------------------------------------------------------------------------- + +wxDCFactory *wxDCFactory::m_factory = NULL; + +void wxDCFactory::Set(wxDCFactory *factory) +{ + delete m_factory; + + m_factory = factory; +} + +wxDCFactory *wxDCFactory::Get() +{ + if ( !m_factory ) + m_factory = new wxNativeDCFactory; + + return m_factory; +} + +class wxDCFactoryCleanupModule : public wxModule +{ +public: + virtual bool OnInit() { return true; } + virtual void OnExit() { wxDCFactory::Set(NULL); } + +private: + DECLARE_DYNAMIC_CLASS(wxDCFactoryCleanupModule) +}; + +IMPLEMENT_DYNAMIC_CLASS(wxDCFactoryCleanupModule, wxModule) + +//----------------------------------------------------------------------------- +// wxNativeDCFactory +//----------------------------------------------------------------------------- + +wxDCImpl* wxNativeDCFactory::CreateWindowDC( wxWindowDC *owner, wxWindow *window ) +{ + wxDCImpl * const impl = new wxWindowDCImpl( owner, window ); + impl->InheritAttributes(window); + return impl; +} + +wxDCImpl* wxNativeDCFactory::CreateClientDC( wxClientDC *owner, wxWindow *window ) +{ + wxDCImpl * const impl = new wxClientDCImpl( owner, window ); + impl->InheritAttributes(window); + return impl; +} + +wxDCImpl* wxNativeDCFactory::CreatePaintDC( wxPaintDC *owner, wxWindow *window ) +{ + wxDCImpl * const impl = new wxPaintDCImpl( owner, window ); + impl->InheritAttributes(window); + return impl; +} + +wxDCImpl* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner ) +{ + return new wxMemoryDCImpl( owner ); +} + +wxDCImpl* wxNativeDCFactory::CreateMemoryDC(wxMemoryDC *owner, wxBitmap& bitmap) +{ + // 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(); + + return new wxMemoryDCImpl(owner, bitmap); +} + +wxDCImpl* wxNativeDCFactory::CreateMemoryDC( wxMemoryDC *owner, wxDC *dc ) +{ + return new wxMemoryDCImpl( owner, dc ); +} + +wxDCImpl* wxNativeDCFactory::CreateScreenDC( wxScreenDC *owner ) +{ + return new wxScreenDCImpl( owner ); +} + +#if wxUSE_PRINTING_ARCHITECTURE +wxDCImpl *wxNativeDCFactory::CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data ) +{ + wxPrintFactory *factory = wxPrintFactory::GetFactory(); + return factory->CreatePrinterDCImpl( owner, data ); +} +#endif + +//----------------------------------------------------------------------------- +// wxWindowDC +//----------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxWindowDC, wxDC) + +wxWindowDC::wxWindowDC(wxWindow *win) + : wxDC(wxDCFactory::Get()->CreateWindowDC(this, win)) +{ +} + +//----------------------------------------------------------------------------- +// wxClientDC +//----------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxClientDC, wxWindowDC) + +wxClientDC::wxClientDC(wxWindow *win) + : wxWindowDC(wxDCFactory::Get()->CreateClientDC(this, win)) +{ +} + +//----------------------------------------------------------------------------- +// wxMemoryDC +//----------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxDC) + +wxMemoryDC::wxMemoryDC() + : wxDC(wxDCFactory::Get()->CreateMemoryDC(this)) +{ +} + +wxMemoryDC::wxMemoryDC(wxBitmap& bitmap) + : wxDC(wxDCFactory::Get()->CreateMemoryDC(this, bitmap)) +{ +} + +wxMemoryDC::wxMemoryDC(wxDC *dc) + : wxDC(wxDCFactory::Get()->CreateMemoryDC(this, dc)) +{ +} + +void wxMemoryDC::SelectObject(wxBitmap& bmp) +{ + 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 + if (bmp.IsOk()) + bmp.UnShare(); + + GetImpl()->DoSelect(bmp); +} + +void wxMemoryDC::SelectObjectAsSource(const wxBitmap& bmp) +{ + GetImpl()->DoSelect(bmp); +} + +const wxBitmap& wxMemoryDC::GetSelectedBitmap() const +{ + return GetImpl()->GetSelectedBitmap(); +} + +wxBitmap& wxMemoryDC::GetSelectedBitmap() +{ + return GetImpl()->GetSelectedBitmap(); +} -// ============================================================================ -// implementation -// ============================================================================ -#if WXWIN_COMPATIBILITY_2_6 -void wxDCBase::BeginDrawing() +//----------------------------------------------------------------------------- +// wxPaintDC +//----------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxPaintDC, wxClientDC) + +wxPaintDC::wxPaintDC(wxWindow *win) + : wxClientDC(wxDCFactory::Get()->CreatePaintDC(this, win)) +{ +} + +//----------------------------------------------------------------------------- +// wxScreenDC +//----------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxScreenDC, wxWindowDC) + +wxScreenDC::wxScreenDC() + : wxDC(wxDCFactory::Get()->CreateScreenDC(this)) +{ +} + +//----------------------------------------------------------------------------- +// wxPrinterDC +//----------------------------------------------------------------------------- + +#if wxUSE_PRINTING_ARCHITECTURE + +IMPLEMENT_DYNAMIC_CLASS(wxPrinterDC, wxDC) + +wxPrinterDC::wxPrinterDC() + : wxDC(wxDCFactory::Get()->CreatePrinterDC(this, wxPrintData())) { } -void wxDCBase::EndDrawing() +wxPrinterDC::wxPrinterDC(const wxPrintData& data) + : wxDC(wxDCFactory::Get()->CreatePrinterDC(this, data)) +{ +} + +wxRect wxPrinterDC::GetPaperRect() const +{ + return GetImpl()->GetPaperRect(); +} + +int wxPrinterDC::GetResolution() const +{ + return GetImpl()->GetResolution(); +} + +#endif // wxUSE_PRINTING_ARCHITECTURE + +//----------------------------------------------------------------------------- +// wxDCImpl +//----------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxDCImpl, wxObject) + +wxDCImpl::wxDCImpl( wxDC *owner ) + : m_window(NULL) + , m_colour(wxColourDisplay()) + , m_ok(true) + , m_clipping(false) + , m_isInteractive(0) + , m_isBBoxValid(false) + , m_logicalOriginX(0), m_logicalOriginY(0) + , m_deviceOriginX(0), m_deviceOriginY(0) + , m_deviceLocalOriginX(0), m_deviceLocalOriginY(0) + , m_logicalScaleX(1.0), m_logicalScaleY(1.0) + , m_userScaleX(1.0), m_userScaleY(1.0) + , m_scaleX(1.0), m_scaleY(1.0) + , m_signX(1), m_signY(1) + , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0) + , m_clipX1(0), m_clipY1(0), m_clipX2(0), m_clipY2(0) + , m_logicalFunction(wxCOPY) + , m_backgroundMode(wxBRUSHSTYLE_TRANSPARENT) + , m_mappingMode(wxMM_TEXT) + , m_pen() + , m_brush() + , m_backgroundBrush() + , m_textForegroundColour(*wxBLACK) + , m_textBackgroundColour(*wxWHITE) + , m_font() +#if wxUSE_PALETTE + , m_palette() + , m_hasCustomPalette(false) +#endif // wxUSE_PALETTE +{ + m_owner = owner; + + m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() / + (double)wxGetDisplaySizeMM().GetWidth(); + m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() / + (double)wxGetDisplaySizeMM().GetHeight(); + + ResetBoundingBox(); + ResetClipping(); +} + +wxDCImpl::~wxDCImpl() { } -#endif // WXWIN_COMPATIBILITY_2_6 // ---------------------------------------------------------------------------- -// special symbols +// coordinate conversions and transforms // ---------------------------------------------------------------------------- -void wxDCBase::DoDrawCheckMark(wxCoord x1, wxCoord y1, +wxCoord wxDCImpl::DeviceToLogicalX(wxCoord x) const +{ + return wxRound( (double)((x - m_deviceOriginX - m_deviceLocalOriginX) * m_signX) / m_scaleX ) + m_logicalOriginX ; +} + +wxCoord wxDCImpl::DeviceToLogicalY(wxCoord y) const +{ + return wxRound( (double)((y - m_deviceOriginY - m_deviceLocalOriginY) * m_signY) / m_scaleY ) + m_logicalOriginY ; +} + +wxCoord wxDCImpl::DeviceToLogicalXRel(wxCoord x) const +{ + return wxRound((double)(x) / m_scaleX); +} + +wxCoord wxDCImpl::DeviceToLogicalYRel(wxCoord y) const +{ + return wxRound((double)(y) / m_scaleY); +} + +wxCoord wxDCImpl::LogicalToDeviceX(wxCoord x) const +{ + return wxRound( (double)((x - m_logicalOriginX) * m_signX) * m_scaleX) + m_deviceOriginX + m_deviceLocalOriginX; +} + +wxCoord wxDCImpl::LogicalToDeviceY(wxCoord y) const +{ + return wxRound( (double)((y - m_logicalOriginY) * m_signY) * m_scaleY) + m_deviceOriginY + m_deviceLocalOriginY; +} + +wxCoord wxDCImpl::LogicalToDeviceXRel(wxCoord x) const +{ + return wxRound((double)(x) * m_scaleX); +} + +wxCoord wxDCImpl::LogicalToDeviceYRel(wxCoord y) const +{ + return wxRound((double)(y) * m_scaleY); +} + +void wxDCImpl::ComputeScaleAndOrigin() +{ + m_scaleX = m_logicalScaleX * m_userScaleX; + m_scaleY = m_logicalScaleY * m_userScaleY; +} + +void wxDCImpl::SetMapMode( wxMappingMode mode ) +{ + switch (mode) + { + case wxMM_TWIPS: + SetLogicalScale( twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y ); + break; + case wxMM_POINTS: + SetLogicalScale( pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y ); + break; + case wxMM_METRIC: + SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y ); + break; + case wxMM_LOMETRIC: + SetLogicalScale( m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0 ); + break; + default: + case wxMM_TEXT: + SetLogicalScale( 1.0, 1.0 ); + break; + } + m_mappingMode = mode; +} + +void wxDCImpl::SetUserScale( double x, double y ) +{ + // allow negative ? -> no + m_userScaleX = x; + m_userScaleY = y; + ComputeScaleAndOrigin(); +} + +void wxDCImpl::SetLogicalScale( double x, double y ) +{ + // allow negative ? + m_logicalScaleX = x; + m_logicalScaleY = y; + ComputeScaleAndOrigin(); +} + +void wxDCImpl::SetLogicalOrigin( wxCoord x, wxCoord y ) +{ + m_logicalOriginX = x * m_signX; + m_logicalOriginY = y * m_signY; + ComputeScaleAndOrigin(); +} + +void wxDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y ) +{ + m_deviceOriginX = x; + m_deviceOriginY = y; + ComputeScaleAndOrigin(); +} + +void wxDCImpl::SetDeviceLocalOrigin( wxCoord x, wxCoord y ) +{ + m_deviceLocalOriginX = x; + m_deviceLocalOriginY = y; + ComputeScaleAndOrigin(); +} + +void wxDCImpl::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) +{ + // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there + // wxWidgets 2.9: no longer override it + m_signX = (xLeftRight ? 1 : -1); + m_signY = (yBottomUp ? -1 : 1); + ComputeScaleAndOrigin(); +} + + +// Each element of the widths array will be the width of the string up to and +// including the corresponding character in text. This is the generic +// implementation, the port-specific classes should do this with native APIs +// if available and if faster. Note: pango_layout_index_to_pos is much slower +// than calling GetTextExtent!! + +#define FWC_SIZE 256 + +class FontWidthCache +{ +public: + FontWidthCache() : m_scaleX(1), m_widths(NULL) { } + ~FontWidthCache() { delete []m_widths; } + + void Reset() + { + if (!m_widths) + m_widths = new int[FWC_SIZE]; + + memset(m_widths, 0, sizeof(int)*FWC_SIZE); + } + + wxFont m_font; + double m_scaleX; + int *m_widths; +}; + +static FontWidthCache s_fontWidthCache; + +bool wxDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const +{ + int totalWidth = 0; + + const size_t len = text.length(); + widths.Empty(); + widths.Add(0, len); + + // reset the cache if font or horizontal scale have changed + if ( !s_fontWidthCache.m_widths || + !wxIsSameDouble(s_fontWidthCache.m_scaleX, m_scaleX) || + (s_fontWidthCache.m_font != GetFont()) ) + { + s_fontWidthCache.Reset(); + s_fontWidthCache.m_font = GetFont(); + s_fontWidthCache.m_scaleX = m_scaleX; + } + + // Calculate the position of each character based on the widths of + // the previous characters + int w, h; + for ( size_t i = 0; i < len; i++ ) + { + const wxChar c = text[i]; + unsigned int c_int = (unsigned int)c; + + if ((c_int < FWC_SIZE) && (s_fontWidthCache.m_widths[c_int] != 0)) + { + w = s_fontWidthCache.m_widths[c_int]; + } + else + { + DoGetTextExtent(c, &w, &h); + if (c_int < FWC_SIZE) + s_fontWidthCache.m_widths[c_int] = w; + } + + totalWidth += w; + widths[i] = totalWidth; + } + + return true; +} + +void wxDCImpl::GetMultiLineTextExtent(const wxString& text, + wxCoord *x, + wxCoord *y, + wxCoord *h, + const wxFont *font) const +{ + wxCoord widthTextMax = 0, widthLine, + heightTextTotal = 0, heightLineDefault = 0, heightLine = 0; + + wxString curLine; + for ( wxString::const_iterator pc = text.begin(); ; ++pc ) + { + if ( pc == text.end() || *pc == wxT('\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(wxT("W"), NULL, &heightLineDefault, + NULL, NULL, font); + } + + heightTextTotal += heightLineDefault; + } + else + { + DoGetTextExtent(curLine, &widthLine, &heightLine, + NULL, NULL, font); + if ( widthLine > widthTextMax ) + widthTextMax = widthLine; + heightTextTotal += heightLine; + } + + if ( pc == text.end() ) + { + break; + } + else // '\n' + { + curLine.clear(); + } + } + else + { + curLine += *pc; + } + } + + if ( x ) + *x = widthTextMax; + if ( y ) + *y = heightTextTotal; + if ( h ) + *h = heightLine; +} + +void wxDCImpl::DoDrawCheckMark(wxCoord x1, wxCoord y1, wxCoord width, wxCoord height) { - wxCHECK_RET( Ok(), wxT("invalid window dc") ); + wxCHECK_RET( IsOk(), wxT("invalid window dc") ); wxCoord x2 = x1 + width, y2 = y1 + height; - // this is to yield width of 3 for width == height == 10 - SetPen(wxPen(GetTextForeground(), (width + height + 1) / 7, wxSOLID)); + // the pen width is calibrated to give 3 for width == height == 10 + wxDCPenChanger pen( *m_owner, wxPen(GetTextForeground(), (width + height + 1)/7)); // we're drawing a scaled version of wx/generic/tick.xpm here wxCoord x3 = x1 + (4*width) / 10, // x of the tick bottom @@ -73,19 +652,47 @@ void wxDCBase::DoDrawCheckMark(wxCoord x1, wxCoord y1, CalcBoundingBox(x2, y2); } -// ---------------------------------------------------------------------------- -// line/polygons -// ---------------------------------------------------------------------------- +bool +wxDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, + wxCoord dstWidth, wxCoord dstHeight, + wxDC *source, + wxCoord xsrc, wxCoord ysrc, + wxCoord srcWidth, wxCoord srcHeight, + wxRasterOperationMode rop, + bool useMask, + wxCoord xsrcMask, + wxCoord ysrcMask) +{ + wxCHECK_MSG( srcWidth && srcHeight && dstWidth && dstHeight, false, + wxT("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); -void wxDCBase::DrawLines(const wxList *list, wxCoord xoffset, wxCoord yoffset) + bool rc = DoBlit(wxCoord(xdest*xscale), wxCoord(ydest*yscale), + wxCoord(dstWidth*xscale), wxCoord(dstHeight*yscale), + source, + xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask); + + SetUserScale(xscaleOld, yscaleOld); + + return rc; +} + +void wxDCImpl::DrawLines(const wxPointList *list, wxCoord xoffset, wxCoord yoffset) { int n = list->GetCount(); wxPoint *points = new wxPoint[n]; int i = 0; - for ( wxList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ ) + for ( wxPointList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ ) { - wxPoint *point = (wxPoint *)node->GetData(); + wxPoint *point = node->GetData(); points[i].x = point->x; points[i].y = point->y; } @@ -95,18 +702,17 @@ void wxDCBase::DrawLines(const wxList *list, wxCoord xoffset, wxCoord yoffset) delete [] points; } - -void wxDCBase::DrawPolygon(const wxList *list, +void wxDCImpl::DrawPolygon(const wxPointList *list, wxCoord xoffset, wxCoord yoffset, - int fillStyle) + wxPolygonFillMode 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++ ) + for ( wxPointList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ ) { - wxPoint *point = (wxPoint *)node->GetData(); + wxPoint *point = node->GetData(); points[i].x = point->x; points[i].y = point->y; } @@ -117,11 +723,11 @@ void wxDCBase::DrawPolygon(const wxList *list, } void -wxDCBase::DoDrawPolyPolygon(int n, +wxDCImpl::DoDrawPolyPolygon(int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, - int fillStyle) + wxPolygonFillMode fillStyle) { if ( n == 1 ) { @@ -131,7 +737,6 @@ wxDCBase::DoDrawPolyPolygon(int n, int i, j, lastOfs; wxPoint* pts; - wxPen pen; for (i = j = lastOfs = 0; i < n; i++) { @@ -147,10 +752,11 @@ wxDCBase::DoDrawPolyPolygon(int n, 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); @@ -159,45 +765,21 @@ wxDCBase::DoDrawPolyPolygon(int n, delete[] pts; } -// ---------------------------------------------------------------------------- -// splines -// ---------------------------------------------------------------------------- - #if wxUSE_SPLINES -// TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?) -void wxDCBase::DrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3) +void wxDCImpl::DrawSpline(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); - - DrawSpline(&point_list); - - for( wxList::compatibility_iterator node = point_list.GetFirst(); node; node = node->GetNext() ) - { - wxPoint *p = (wxPoint *)node->GetData(); - delete p; - } + wxPoint points[] = { wxPoint(x1, y1), wxPoint(x2, y2), wxPoint(x3, y3) }; + DrawSpline(WXSIZEOF(points), points); } -void wxDCBase::DrawSpline(int n, wxPoint points[]) +void wxDCImpl::DrawSpline(int n, wxPoint points[]) { - wxList list; - for (int i =0; i < n; i++) - { - list.Append((wxObject*)&points[i]); - } + wxPointList list; + for ( int i = 0; i < n; i++ ) + list.Append(&points[i]); DrawSpline(&list); } @@ -212,9 +794,9 @@ int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3, void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4); static bool wx_spline_add_point(double x, double y); -static void wx_spline_draw_point_array(wxDCBase *dc); +static void wx_spline_draw_point_array(wxDC *dc); -wxList wx_spline_point_list; +static wxPointList wx_spline_point_list; #define half(z1, z2) ((z1+z2)/2.0) #define THRESHOLD 5 @@ -297,36 +879,34 @@ int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, static bool wx_spline_add_point(double x, double y) { - wxPoint *point = new wxPoint ; - point->x = (int) x; - point->y = (int) y; - wx_spline_point_list.Append((wxObject*)point); - return true; + wxPoint *point = new wxPoint( wxRound(x), wxRound(y) ); + wx_spline_point_list.Append(point ); + return true; } -static void wx_spline_draw_point_array(wxDCBase *dc) +static void wx_spline_draw_point_array(wxDC *dc) { - dc->DrawLines(&wx_spline_point_list, 0, 0 ); - wxList::compatibility_iterator node = wx_spline_point_list.GetFirst(); - while (node) - { - wxPoint *point = (wxPoint *)node->GetData(); - delete point; - wx_spline_point_list.Erase(node); - node = wx_spline_point_list.GetFirst(); - } + dc->DrawLines(&wx_spline_point_list, 0, 0 ); + wxPointList::compatibility_iterator node = wx_spline_point_list.GetFirst(); + while (node) + { + wxPoint *point = node->GetData(); + delete point; + wx_spline_point_list.Erase(node); + node = wx_spline_point_list.GetFirst(); + } } -void wxDCBase::DoDrawSpline( wxList *points ) +void wxDCImpl::DoDrawSpline( const wxPointList *points ) { - wxCHECK_RET( Ok(), wxT("invalid window dc") ); + wxCHECK_RET( IsOk(), wxT("invalid window dc") ); wxPoint *p; double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4; double x1, y1, x2, y2; - wxList::compatibility_iterator node = points->GetFirst(); - if (node == wxList::compatibility_iterator()) + wxPointList::compatibility_iterator node = points->GetFirst(); + if (!node) // empty list return; @@ -336,7 +916,7 @@ void wxDCBase::DoDrawSpline( wxList *points ) y1 = p->y; node = node->GetNext(); - p = (wxPoint *)node->GetData(); + p = node->GetData(); x2 = p->x; y2 = p->y; @@ -348,12 +928,12 @@ void wxDCBase::DoDrawSpline( wxList *points ) 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 = (wxPoint *)node->GetData(); + p = node->GetData(); x1 = x2; y1 = y2; x2 = p->x; @@ -363,173 +943,235 @@ void wxDCBase::DoDrawSpline( wxList *points ) cx3 = (double)(x1 + cx4) / 2; cy3 = (double)(y1 + cy4) / 2; - wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4); + 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 wxDCImpl::DoGradientFillLinear(const wxRect& rect, + const wxColour& initialColour, + const wxColour& destColour, + wxDirection nDirection) +{ + // save old pen + wxPen oldPen = m_pen; + wxBrush oldBrush = m_brush; + + wxUint8 nR1 = initialColour.Red(); + wxUint8 nG1 = initialColour.Green(); + wxUint8 nB1 = initialColour.Blue(); + wxUint8 nR2 = destColour.Red(); + wxUint8 nG2 = destColour.Green(); + wxUint8 nB2 = destColour.Blue(); + wxUint8 nR, nG, nB; + + if ( nDirection == wxEAST || nDirection == wxWEST ) + { + 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, wxPENSTYLE_SOLID)); + 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; - cx1 = cx4; - cy1 = cy4; - cx2 = (double)(cx1 + x2) / 2; - cy2 = (double)(cy1 + y2) / 2; - } + if (nG1 > nG2) + nG = nG1 - (nG1-nG2)*(w-y)/w; + else + nG = nG1 + (nG2-nG1)*(w-y)/w; - wx_spline_add_point( cx1, cy1 ); - wx_spline_add_point( x2, y2 ); + 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, wxPENSTYLE_SOLID)); + 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); + } + } - wx_spline_draw_point_array( this ); + SetPen(oldPen); + SetBrush(oldBrush); } -#endif // wxUSE_SPLINES +void wxDCImpl::DoGradientFillConcentric(const wxRect& rect, + const wxColour& initialColour, + const wxColour& destColour, + const wxPoint& circleCenter) +{ + // save the old pen and ensure it is restored on exit + const wxPen penOrig = m_pen; + wxON_BLOCK_EXIT_SET(m_pen, penOrig); -// ---------------------------------------------------------------------------- -// Partial Text Extents -// ---------------------------------------------------------------------------- + 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; -// 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!! + //Radius + double cx = rect.GetWidth() / 2; + double cy = rect.GetHeight() / 2; + double dRadius; + if (cx < cy) + dRadius = cx; + else + dRadius = cy; -#define FWC_SIZE 256 + //Offset of circle + double ptX, ptY; + ptX = circleCenter.x; + ptY = circleCenter.y; + double nCircleOffX = ptX - cx; + double nCircleOffY = ptY - cy; -class FontWidthCache -{ -public: - FontWidthCache() : m_scaleX(1), m_widths(NULL) { } - ~FontWidthCache() { delete []m_widths; } + double dGradient; + double dx, dy; - void Reset() + for ( wxInt32 x = 0; x < rect.GetWidth(); x++ ) { - 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; + for ( wxInt32 y = 0; y < rect.GetHeight(); y++ ) + { + //get color difference + dx = x; + dy = y; - const size_t len = text.length(); - widths.Empty(); - widths.Add(0, len); + dGradient = ((dRadius - sqrt( (dx - cx - nCircleOffX) * (dx - cx - nCircleOffX) + +(dy - cy - nCircleOffY) * (dy - cy - nCircleOffY) + ) + ) * 100 + ) / dRadius; - // 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; - } + //normalize Gradient + if (dGradient < 0) + dGradient = 0.0; - // 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; + //get dest colors + nR = (wxUint8)(nR1 + ((nR2 - nR1) * dGradient / 100)); + nG = (wxUint8)(nG1 + ((nG2 - nG1) * dGradient / 100)); + nB = (wxUint8)(nB1 + ((nB2 - nB1) * dGradient / 100)); - 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; + //set the pixel + SetPen(wxColour(nR,nG,nB)); + DoDrawPoint(x + rect.GetLeft(), y + rect.GetTop()); } - - totalWidth += w; - widths[i] = totalWidth; } - - return true; } - -// ---------------------------------------------------------------------------- -// enhanced text drawing -// ---------------------------------------------------------------------------- - -void wxDCBase::GetMultiLineTextExtent(const wxString& text, - wxCoord *x, - wxCoord *y, - wxCoord *h, - wxFont *font) +void wxDCImpl::InheritAttributes(wxWindow *win) { - 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 + wxCHECK_RET( win, "window can't be NULL" ); - // assume that this line has the same height as the previous - // one - if ( !heightLineDefault ) - heightLineDefault = heightLine; + SetFont(win->GetFont()); + SetTextForeground(win->GetForegroundColour()); + SetTextBackground(win->GetBackgroundColour()); + SetBackground(win->GetBackgroundColour()); + SetLayoutDirection(win->GetLayoutDirection()); +} - if ( !heightLineDefault ) - { - // but we don't know it yet - choose something reasonable - GetTextExtent(_T("W"), NULL, &heightLineDefault, - NULL, NULL, font); - } +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; +} - heightTextTotal += heightLineDefault; - } - else - { - GetTextExtent(curLine, &widthLine, &heightLine, - NULL, NULL, font); - if ( widthLine > widthTextMax ) - widthTextMax = widthLine; - heightTextTotal += heightLine; - } +//----------------------------------------------------------------------------- +// wxDC +//----------------------------------------------------------------------------- - if ( *pc == _T('\n') ) - { - curLine.clear(); - } - else - { - // the end of string - break; - } - } - else - { - curLine += *pc; - } - } +IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject) - if ( x ) - *x = widthTextMax; - if ( y ) - *y = heightTextTotal; - if ( h ) - *h = heightLine; +void wxDC::CopyAttributes(const wxDC& dc) +{ + SetFont(dc.GetFont()); + SetTextForeground(dc.GetTextForeground()); + SetTextBackground(dc.GetTextBackground()); + SetBackground(dc.GetBackground()); + SetLayoutDirection(dc.GetLayoutDirection()); } -void wxDCBase::DrawLabel(const wxString& text, +void wxDC::DrawLabel(const wxString& text, const wxBitmap& bitmap, const wxRect& rect, int alignment, @@ -541,7 +1183,7 @@ void wxDCBase::DrawLabel(const wxString& text, GetMultiLineTextExtent(text, &widthText, &heightText, &heightLine); wxCoord width, height; - if ( bitmap.Ok() ) + if ( bitmap.IsOk() ) { width = widthText + bitmap.GetWidth(); height = bitmap.GetHeight(); @@ -583,7 +1225,7 @@ void wxDCBase::DrawLabel(const wxString& text, wxCoord x0 = x, y0 = y, width0 = width; - if ( bitmap.Ok() ) + if ( bitmap.IsOk() ) { DrawBitmap(bitmap, x, y, true /* use mask */); @@ -600,10 +1242,16 @@ void wxDCBase::DrawLabel(const wxString& text, 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 ( 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 == '\n' ) { int xRealStart = x; // init it here to avoid compielr warnings @@ -630,211 +1278,129 @@ void wxDCBase::DrawLabel(const wxString& text, 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 == _T('\0') ) - break; - - curLine.clear(); - } - else // not end of line - { - if ( pc - text.c_str() == 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; - - 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; - - 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; + y += heightLine; - if (nG1 > nG2) - nG = nG1 - (nG1-nG2)*(w-x)/w; - else - nG = nG1 + (nG2-nG1)*(w-x)/w; + // 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 (nB1 > nB2) - nB = nB1 - (nB1-nB2)*(w-x)/w; - else - nB = nB1 + (nB2-nB1)*(w-x)/w; + if ( pc == text.end() ) + break; - SetPen(wxPen(wxColour(nR, nG, nB), 1, wxSOLID)); - if(nDirection == wxEAST) - DrawRectangle(rect.GetLeft()+x, rect.GetTop(), - xDelta, rect.GetHeight()); - else //nDirection == wxWEST - DrawRectangle(rect.GetRight()-x-xDelta, rect.GetTop(), - xDelta, rect.GetHeight()); + curLine.clear(); } - } - 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) + else // not end of line { - 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 ( pc - text.begin() == indexAccel ) + { + // remeber to draw underscore here + GetTextExtent(curLine, &startUnderscore, NULL); + curLine += *pc; + GetTextExtent(curLine, &endUnderscore, NULL); - if (nB1 > nB2) - nB = nB1 - (nB1-nB2)*(w-y)/w; + yUnderscore = y + heightLine; + } else - nB = nB1 + (nB2-nB1)*(w-y)/w; - - SetPen(wxPen(wxColour(nR, nG, nB), 1, wxSOLID)); - if(nDirection == wxNORTH) - DrawRectangle(rect.GetLeft(), rect.GetTop()+y, - rect.GetWidth(), yDelta); - else //nDirection == wxSOUTH - DrawRectangle(rect.GetLeft(), rect.GetBottom()-y-yDelta, - rect.GetWidth(), yDelta); + { + curLine += *pc; + } } } - SetPen(oldPen); -} - -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(); + // draw the underscore if found + if ( startUnderscore != endUnderscore ) + { + // it should be of the same colour as text + SetPen(wxPen(GetTextForeground(), 0, wxPENSTYLE_SOLID)); - 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; + // 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); + } - //Radius - wxInt32 cx = rect.GetWidth() / 2; - wxInt32 cy = rect.GetHeight() / 2; - wxInt32 nRadius; - if (cx < cy) - nRadius = cx; - else - nRadius = cy; + // return bounding rect if requested + if ( rectBounding ) + { + *rectBounding = wxRect(x, y - heightText, widthText, heightText); + } - //Offset of circle - wxInt32 nCircleOffX = circleCenter.x - (rect.GetWidth() / 2); - wxInt32 nCircleOffY = circleCenter.y - (rect.GetHeight() / 2); + CalcBoundingBox(x0, y0); + CalcBoundingBox(x0 + width0, y0 + height); +} - for ( wxInt32 x = 0; x < rect.GetWidth(); x++ ) +#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 { - 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; + 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; + } - //normalize Gradient - if (nGradient < 0 ) - nGradient = 0; +void wxDC::GetLogicalOrigin(long *x, long *y) const + { + wxCoord x2, y2; + m_pimpl->DoGetLogicalOrigin(&x2, &y2); + if ( x ) + *x = x2; + if ( y ) + *y = y2; + } - //get dest colors - nR = (wxUint8)(nR1 + ((nR2 - nR1) * nGradient / 100)); - nG = (wxUint8)(nG1 + ((nG2 - nG1) * nGradient / 100)); - nB = (wxUint8)(nB1 + ((nB2 - nB1) * nGradient / 100)); +void wxDC::GetDeviceOrigin(long *x, long *y) const + { + wxCoord x2, y2; + m_pimpl->DoGetDeviceOrigin(&x2, &y2); + if ( x ) + *x = x2; + if ( y ) + *y = y2; + } - //set the pixel - m_pen.SetColour(wxColour(nR,nG,nB)); - DrawPoint(wxPoint(x + rect.GetLeft(), y + rect.GetTop())); - } +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; } - //return old pen color - m_pen.SetColour(oldPenColour); + +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(...) @@ -877,26 +1443,26 @@ p.lenhard@t-online.de */ #ifdef __WXWINCE__ -void wxDCBase::DoDrawEllipticArcRot( wxCoord x, wxCoord y, +void wxDCImpl::DoDrawEllipticArcRot( wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea, double angle ) { - wxList list; + wxPointList list; CalculateEllipticPoints( &list, x, y, w, h, sa, ea ); Rotate( &list, angle, wxPoint( x+w/2, y+h/2 ) ); // Add center (for polygon/pie) - list.Append( (wxObject*) new wxPoint( x+w/2, y+h/2 ) ); + list.Append( new wxPoint( x+w/2, y+h/2 ) ); // copy list into array and delete list elements int n = list.GetCount(); wxPoint *points = new wxPoint[n]; int i = 0; - wxNode* node = 0; + wxPointList::compatibility_iterator node; for ( node = list.GetFirst(); node; node = node->GetNext(), i++ ) { - wxPoint *point = (wxPoint *)node->GetData(); + wxPoint *point = node->GetData(); points[i].x = point->x; points[i].y = point->y; delete point; @@ -922,16 +1488,17 @@ void wxDCBase::DoDrawEllipticArcRot( wxCoord x, wxCoord y, } // DrawEllipticArcRot -void wxDCBase::Rotate( wxList* points, double angle, wxPoint center ) +void wxDCImpl::Rotate( wxPointList* points, double angle, wxPoint center ) { if( angle != 0.0 ) { double pi(M_PI); double dSinA = -sin(angle*2.0*pi/360.0); double dCosA = cos(angle*2.0*pi/360.0); - for ( wxNode* node = points->GetFirst(); node; node = node->GetNext() ) + wxPointList::compatibility_iterator node; + for ( node = points->GetFirst(); node; node = node->GetNext() ) { - wxPoint* point = (wxPoint*)node->GetData(); + wxPoint* point = node->GetData(); // transform coordinates, if necessary if( center.x ) point->x -= center.x; @@ -949,7 +1516,7 @@ void wxDCBase::Rotate( wxList* points, double angle, wxPoint center ) } } -void wxDCBase::CalculateEllipticPoints( wxList* points, +void wxDCImpl::CalculateEllipticPoints( wxPointList* points, wxCoord xStart, wxCoord yStart, wxCoord w, wxCoord h, double sa, double ea ) @@ -1022,7 +1589,7 @@ void wxDCBase::CalculateEllipticPoints( wxList* points, long y2_old = 0; long y_old = 0; // Lists for quadrant 1 to 4 - wxList pointsarray[4]; + wxPointList pointsarray[4]; // Calculate points for first quadrant and set in all quadrants for( x = 0; x <= a; ++x ) { @@ -1036,45 +1603,46 @@ void wxDCBase::CalculateEllipticPoints( wxList* points, 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; // remove points on the same line - pointsarray[0].Insert( (wxObject*) new wxPoint( xCenter + x1 - decrX, yCenter - y_old ) ); - pointsarray[1].Append( (wxObject*) new wxPoint( xCenter - x1, yCenter - y_old ) ); - pointsarray[2].Insert( (wxObject*) new wxPoint( xCenter - x1, yCenter + y_old - decrY ) ); - pointsarray[3].Append( (wxObject*) new wxPoint( xCenter + x1 - decrX, yCenter + y_old - decrY ) ); + pointsarray[0].Insert( new wxPoint( xCenter + x1 - decrX, yCenter - y_old ) ); + pointsarray[1].Append( new wxPoint( xCenter - x1, yCenter - y_old ) ); + pointsarray[2].Insert( new wxPoint( xCenter - x1, yCenter + y_old - decrY ) ); + pointsarray[3].Append( new wxPoint( xCenter + x1 - decrX, yCenter + y_old - decrY ) ); } // set point } // calculate point // Starting and/or ending points for the quadrants, first quadrant gets both. - pointsarray[0].Insert( (wxObject*) new wxPoint( xCenter + a - decrX, yCenter ) ); - pointsarray[0].Append( (wxObject*) new wxPoint( xCenter, yCenter - b ) ); - pointsarray[1].Append( (wxObject*) new wxPoint( xCenter - a, yCenter ) ); - pointsarray[2].Append( (wxObject*) new wxPoint( xCenter, yCenter + b - decrY ) ); - pointsarray[3].Append( (wxObject*) new wxPoint( xCenter + a - decrX, yCenter ) ); + pointsarray[0].Insert( new wxPoint( xCenter + a - decrX, yCenter ) ); + pointsarray[0].Append( new wxPoint( xCenter, yCenter - b ) ); + pointsarray[1].Append( new wxPoint( xCenter - a, yCenter ) ); + pointsarray[2].Append( new wxPoint( xCenter, yCenter + b - decrY ) ); + pointsarray[3].Append( new wxPoint( xCenter + a - decrX, yCenter ) ); // copy quadrants in original list if( bUseAngles ) { // Copy the right part of the points in the lists // and delete the wxPoints, because they do not leave this method. - points->Append( (wxObject*) new wxPoint( xsa, ysa ) ); + points->Append( new wxPoint( xsa, ysa ) ); int q = sq; bool bStarted = false; bool bReady = false; bool bForceTurn = ( sq == eq && sa > ea ); while( !bReady ) { - for( wxNode *node = pointsarray[q].GetFirst(); node; node = node->GetNext() ) + wxPointList::compatibility_iterator node; + for( node = pointsarray[q].GetFirst(); node; node = node->GetNext() ) { // once: go to starting point in start quadrant if( !bStarted && ( - ( (wxPoint*) node->GetData() )->x < xsa+1 && q <= 1 + node->GetData()->x < xsa+1 && q <= 1 || - ( (wxPoint*) node->GetData() )->x > xsa-1 && q >= 2 + node->GetData()->x > xsa-1 && q >= 2 ) ) { @@ -1092,10 +1660,10 @@ void wxDCBase::CalculateEllipticPoints( wxList* points, ) { // copy point - wxPoint* pPoint = new wxPoint( *((wxPoint*) node->GetData() ) ); - points->Append( (wxObject*) pPoint ); + wxPoint* pPoint = new wxPoint( *(node->GetData()) ); + points->Append( pPoint ); } - else if( q == eq && !bForceTurn || ( (wxPoint*) node->GetData() )->x == xea) + else if( q == eq && !bForceTurn || node->GetData()->x == xea) { bReady = true; } @@ -1106,466 +1674,56 @@ void wxDCBase::CalculateEllipticPoints( wxList* points, bForceTurn = false; bStarted = true; } // while not bReady - points->Append( (wxObject*) new wxPoint( xea, yea ) ); + points->Append( new wxPoint( xea, yea ) ); // delete points for( q = 0; q < 4; ++q ) { - for( wxNode *node = pointsarray[q].GetFirst(); node; node = node->GetNext() ) + wxPointList::compatibility_iterator node; + for( node = pointsarray[q].GetFirst(); node; node = node->GetNext() ) { - wxPoint *p = (wxPoint *)node->GetData(); + wxPoint *p = node->GetData(); delete p; } } } else { - wxNode* node; + wxPointList::compatibility_iterator node; // copy whole ellipse, wxPoints will be deleted outside for( node = pointsarray[0].GetFirst(); node; node = node->GetNext() ) { - wxObject *p = node->GetData(); + wxPoint *p = node->GetData(); points->Append( p ); } for( node = pointsarray[1].GetFirst(); node; node = node->GetNext() ) { - wxObject *p = node->GetData(); + wxPoint *p = node->GetData(); points->Append( p ); } for( node = pointsarray[2].GetFirst(); node; node = node->GetNext() ) { - wxObject *p = node->GetData(); + wxPoint *p = node->GetData(); points->Append( p ); } for( node = pointsarray[3].GetFirst(); node; node = node->GetNext() ) { - wxObject *p = node->GetData(); + wxPoint *p = node->GetData(); points->Append( p ); } } // not iUseAngles } // CalculateEllipticPoints -#endif - -// -// temporary home for wxOverlay -// - -#include "wx/dcclient.h" -#include "wx/dcmemory.h" - -#if defined(wxMAC_USE_CORE_GRAPHICS) && wxMAC_USE_CORE_GRAPHICS - -#include "wx/mac/private.h" -#include "wx/toplevel.h" - -class wxOverlayImpl -{ -public: - wxOverlayImpl() ; - ~wxOverlayImpl() ; - - - // clears the overlay without restoring the former state - // to be done eg when the window content has been changed and repainted - void Reset(); - - // returns true if it has been setup - bool IsOk(); - - void Init( wxWindowDC* dc, int x , int y , int width , int height ); - - void BeginDrawing( wxWindowDC* dc); - - void EndDrawing( wxWindowDC* dc); - - void Clear( wxWindowDC* dc); - -private: - OSStatus CreateOverlayWindow(); - - void MacGetBounds( Rect *bounds ); - - WindowRef m_overlayWindow; - WindowRef m_overlayParentWindow; - CGContextRef m_overlayContext ; - // we store the window in case we would have to issue a Refresh() - wxWindow* m_window ; - - EventHandlerRef m_overlayParentHandler ; - EventHandlerRef m_overlayHandler; - - static pascal OSStatus OverlayParentWindowEventHandlerProc( EventHandlerCallRef inCallRef, EventRef inEvent, void* inUserData ); - static pascal OSStatus OverlayWindowEventHandlerProc( EventHandlerCallRef inCallRef, EventRef inEvent, void* inUserData ); - - int m_x ; - int m_y ; - int m_width ; - int m_height ; -} ; - -wxOverlayImpl::wxOverlayImpl() -{ - m_window = NULL ; - m_overlayContext = NULL ; - m_overlayWindow = NULL ; -} - -wxOverlayImpl::~wxOverlayImpl() -{ - Reset(); -} - -bool wxOverlayImpl::IsOk() -{ - return m_overlayContext != NULL ; -} - -pascal OSStatus wxOverlayImpl::OverlayWindowEventHandlerProc( EventHandlerCallRef WXUNUSED(inCallRef), EventRef inEvent, void* inUserData ) -{ - OSStatus err = noErr ; - wxOverlayImpl* self = (wxOverlayImpl*) inUserData; - - wxMacCarbonEvent cEvent(inEvent) ; - switch( cEvent.GetClass() ) - { - case kEventClassWindow: - switch( cEvent.GetKind() ) - { - case kEventWindowBoundsChanged: - break; - default : - break; - } - break ; - default : - break ; - } - // as we didn't interfere with the event itself, always return a notHandled - return eventNotHandledErr ; -} - -pascal OSStatus wxOverlayImpl::OverlayParentWindowEventHandlerProc( EventHandlerCallRef inCallRef, EventRef inEvent, void* inUserData ) -{ - OSStatus err = eventNotHandledErr ; - wxOverlayImpl* self = (wxOverlayImpl*) inUserData; - - wxMacCarbonEvent cEvent(inEvent) ; - switch( cEvent.GetClass() ) - { - case kEventClassWindow: - switch( cEvent.GetKind() ) - { - case kEventWindowBoundsChanging: - case kEventWindowBoundsChanged: - { - err = CallNextEventHandler(inCallRef,inEvent); - Rect bounds ; - self->MacGetBounds(&bounds); - SetWindowBounds(self->m_overlayWindow,kWindowContentRgn,&bounds); - } - break; - default : - break; - } - break ; - default : - break ; - } - return err ; -} - -void wxOverlayImpl::MacGetBounds( Rect *bounds ) -{ - wxPoint origin(0,0); - origin = m_window->ClientToScreen( origin ); - bounds->top = origin.y; - bounds->left = origin.x; - bounds->bottom = origin.y+m_y+m_height; - bounds->right = origin.x+m_x+m_width; -} - -OSStatus wxOverlayImpl::CreateOverlayWindow() -{ - OSStatus err; - - WindowAttributes overlayAttributes = kWindowHideOnSuspendAttribute | kWindowIgnoreClicksAttribute; - - static EventHandlerUPP overlayWindowEventHandlerUPP = NULL ; - static EventHandlerUPP overlayParentWindowEventHandlerUPP = NULL ; - const EventTypeSpec windowEvents[] = - { - { kEventClassWindow, kEventWindowBoundsChanged }, - }; - - const EventTypeSpec parentWindowEvents[] = - { - { kEventClassWindow, kEventWindowBoundsChanged }, - { kEventClassWindow, kEventWindowBoundsChanging }, - }; - - if ( overlayWindowEventHandlerUPP == NULL ) - overlayWindowEventHandlerUPP = NewEventHandlerUPP( OverlayWindowEventHandlerProc ); - if ( overlayParentWindowEventHandlerUPP == NULL ) - - overlayParentWindowEventHandlerUPP = NewEventHandlerUPP( OverlayParentWindowEventHandlerProc ); - - m_overlayParentWindow =(WindowRef) m_window->MacGetTopLevelWindowRef(); - - Rect bounds ; - MacGetBounds(&bounds); - err = CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, &m_overlayWindow ); - if ( err == noErr ) - { - SetWindowGroup( m_overlayWindow, GetWindowGroup(m_overlayParentWindow) ); // Put them in the same group so that their window layers are consistent - err = InstallWindowEventHandler( m_overlayWindow, overlayWindowEventHandlerUPP, GetEventTypeCount(windowEvents), windowEvents, this, &m_overlayHandler ); - if ( err == noErr ) - err = InstallWindowEventHandler( m_overlayParentWindow, overlayParentWindowEventHandlerUPP, GetEventTypeCount(parentWindowEvents), parentWindowEvents, this, &m_overlayParentHandler ); - } - return err; -} - -void wxOverlayImpl::Init( wxWindowDC* dc, int x , int y , int width , int height ) -{ - wxASSERT_MSG( !IsOk() , _("You cannot Init an overlay twice") ); - - m_window = dc->GetWindow(); - m_x = x ; - m_y = y ; - m_width = width ; - m_height = height ; - - OSStatus err = CreateOverlayWindow(); - wxASSERT_MSG( err == noErr , _("Couldn't create the overlay window") ); - ShowWindow(m_overlayWindow); - - err = QDBeginCGContext(GetWindowPort(m_overlayWindow), &m_overlayContext); - CGContextTranslateCTM( m_overlayContext, 0, m_height+m_y ); - CGContextScaleCTM( m_overlayContext, 1, -1 ); - wxASSERT_MSG( err == noErr , _("Couldn't init the context on the overlay window") ); -} - -void wxOverlayImpl::BeginDrawing( wxWindowDC* dc) -{ - delete dc->m_graphicContext ; - dc->m_graphicContext = new wxMacCGContext( m_overlayContext ); - dc->m_macLocalOrigin.x = 0 ; - dc->m_macLocalOrigin.y = 0 ; -} - -void wxOverlayImpl::EndDrawing( wxWindowDC* dc) -{ -} - -void wxOverlayImpl::Clear(wxWindowDC* dc) -{ - wxASSERT_MSG( IsOk() , _("You cannot Clear an overlay that is not inited") ); - delete dc->m_graphicContext ; - dc->m_graphicContext = NULL ; - - Reset(); -} - -void wxOverlayImpl::Reset() -{ - if ( m_overlayContext ) - { - OSStatus err = QDEndCGContext(GetWindowPort(m_overlayWindow), &m_overlayContext); - wxASSERT_MSG( err == noErr , _("Couldn't end the context on the overlay window") ); - - m_overlayContext = NULL ; - } - - // todo : don't dispose, only hide and reposition on next run - if (m_overlayWindow) - { - RemoveEventHandler( m_overlayParentHandler ) ; - m_overlayParentHandler = NULL; - RemoveEventHandler( m_overlayHandler ) ; - m_overlayHandler = NULL; - DisposeWindow(m_overlayWindow); - m_overlayWindow = NULL ; - } -} - -// -// -// - -#else - -class wxOverlayImpl -{ -public: - wxOverlayImpl() ; - ~wxOverlayImpl() ; - - - // clears the overlay without restoring the former state - // to be done eg when the window content has been changed and repainted - void Reset(); - - // returns true if it has been setup - bool IsOk(); - - void Init( wxWindowDC* dc, int x , int y , int width , int height ); - - void BeginDrawing( wxWindowDC* dc); - - void EndDrawing( wxWindowDC* dc); - - void Clear( wxWindowDC* dc); - -private: - wxBitmap m_bmpSaved ; - int m_x ; - int m_y ; - int m_width ; - int m_height ; - wxWindow* m_window ; -} ; - -wxOverlayImpl::wxOverlayImpl() -{ - m_window = NULL ; - m_x = m_y = m_width = m_height = 0 ; -} - -wxOverlayImpl::~wxOverlayImpl() -{ -} - -bool wxOverlayImpl::IsOk() -{ - return m_bmpSaved.Ok() ; -} - -void wxOverlayImpl::Init( wxWindowDC* dc, int x , int y , int width , int height ) -{ -#if defined(__WXGTK__) - m_window = dc->m_owner; -#else - m_window = dc->GetWindow(); -#endif - wxMemoryDC dcMem ; - m_bmpSaved.Create( width, height ); - dcMem.SelectObject( m_bmpSaved ); - m_x = x ; - m_y = y ; - m_width = width ; - m_height = height ; -#if defined(__WXGTK__) && !defined(__WX_DC_BLIT_FIXED__) - wxPoint pt = dc->GetDeviceOrigin(); - x += pt.x; - y += pt.y; -#endif // broken wxGTK wxDC::Blit - dcMem.Blit(0, 0, m_width, m_height, - dc, x, y); - dcMem.SelectObject( wxNullBitmap ); -} - -void wxOverlayImpl::Clear(wxWindowDC* dc) -{ - wxMemoryDC dcMem ; - dcMem.SelectObject( m_bmpSaved ); - dc->Blit( m_x, m_y, m_width, m_height , &dcMem , 0 , 0 ); - dcMem.SelectObject( wxNullBitmap ); -} - -void wxOverlayImpl::Reset() -{ - m_bmpSaved = wxBitmap(); -} - -void wxOverlayImpl::BeginDrawing(wxWindowDC* WXUNUSED(dc)) -{ -} - -void wxOverlayImpl::EndDrawing(wxWindowDC* WXUNUSED(dc)) -{ -} - -#endif - -// common code - -wxOverlay::wxOverlay() -{ - m_impl = new wxOverlayImpl(); - m_inDrawing = false; -} - -wxOverlay::~wxOverlay() -{ - wxDELETE( m_impl ); -} - -bool wxOverlay::IsOk() -{ - return m_impl->IsOk(); -} - -void wxOverlay::Init( wxWindowDC* dc, int x , int y , int width , int height ) -{ - m_impl->Init(dc, x, y, width, height); -} - -void wxOverlay::BeginDrawing( wxWindowDC* dc) -{ - m_impl->BeginDrawing(dc); - m_inDrawing = true ; -} - -void wxOverlay::EndDrawing( wxWindowDC* dc) -{ - m_impl->EndDrawing(dc); - m_inDrawing = false ; -} - -void wxOverlay::Clear( wxWindowDC* dc) -{ - m_impl->Clear(dc); -} - -void wxOverlay::Reset() -{ - wxASSERT_MSG(m_inDrawing==false,wxT("cannot reset overlay during drawing")); - m_impl->Reset(); -} - -// dc connector - -wxDCOverlay::wxDCOverlay(wxOverlay &overlay, wxWindowDC *dc, int x , int y , int width , int height) : - m_overlay(overlay) -{ - Init(dc, x, y, width, height); -} - -wxDCOverlay::wxDCOverlay(wxOverlay &overlay, wxWindowDC *dc) : - m_overlay(overlay) -{ - int width; - int height; - dc->GetSize(&width,&height); - Init(dc, 0, 0, width, height); -} - -wxDCOverlay::~wxDCOverlay() -{ - m_overlay.EndDrawing(m_dc); -} - -void wxDCOverlay::Init(wxWindowDC *dc, int x , int y , int width , int height ) -{ - m_dc = dc ; - if ( !m_overlay.IsOk() ) - { - m_overlay.Init(dc,x,y,width,height); - } - m_overlay.BeginDrawing(dc); -} +#endif // __WXWINCE__ -void wxDCOverlay::Clear() +float wxDCImpl::GetFontPointSizeAdjustment(float dpi) { - m_overlay.Clear(m_dc); + // 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; }