X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d296fd8ff72d0a931ec074363ff502a481754b0f..abd474ea63667f727940a009cc3e0b23ba9f418f:/src/gtk/dc.cpp diff --git a/src/gtk/dc.cpp b/src/gtk/dc.cpp index 877ec6f2d2..af0f5a57c9 100644 --- a/src/gtk/dc.cpp +++ b/src/gtk/dc.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: dc.cpp +// Name: src/gtk/dc.cpp // Purpose: // Author: Robert Roebling // RCS-ID: $Id$ @@ -10,1297 +10,16 @@ // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" -#include "wx/dc.h" - - -#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; -} +#include "wx/gtk/dc.h" //----------------------------------------------------------------------------- -// wxNativeDCFactory +// wxGTKDCImpl //----------------------------------------------------------------------------- -wxImplDC* wxNativeDCFactory::CreateWindowDC( wxWindow *window ) -{ -#if defined(__WXMSW__) - return new wxWindowsWindowImplDC( window ); -#elif defined(__WXGTK20__) - return new wxGTKWindowImplDC( window ); -#elif defined(__WXGTK__) - return new wxGTKWindowImplDC( window ); -#elif defined(__WXMAC__) - return new wxMacWindowImplDC( window ); -#elif defined(__WXCOCOA__) - return new wxCocoaWindowImplDC( window ); -#elif defined(__WXMOTIF__) - return new wxMotifWindowImplDC( window ); -#elif defined(__WXX11__) - return new wxX11WindowImplDC( window ); -#elif defined(__WXMGL__) - return new wxMGLWindowImplDC( window ); -#elif defined(__WXDFB__) - return new wxDFBWindowImplDC( window ); -#elif defined(__WXPM__) - return new wxPMWindowImplDC( window ); -#elif defined(__PALMOS__) - return new wxPalmWindowImplDC( window ); -#endif -} - -wxImplDC* wxNativeDCFactory::CreateClientDC( wxWindow *window ) -{ -#if defined(__WXMSW__) - return new wxWindowsClientImplDC( window ); -#elif defined(__WXGTK20__) - return new wxGTKClientImplDC( window ); -#elif defined(__WXGTK__) - return new wxGTKClientImplDC( window ); -#elif defined(__WXMAC__) - return new wxMacClientImplDC( window ); -#elif defined(__WXCOCOA__) - return new wxCocoaClientImplDC( window ); -#elif defined(__WXMOTIF__) - return new wxMotifClientImplDC( window ); -#elif defined(__WXX11__) - return new wxX11ClientImplDC( window ); -#elif defined(__WXMGL__) - return new wxMGLClientImplDC( window ); -#elif defined(__WXDFB__) - return new wxDFBClientImplDC( window ); -#elif defined(__WXPM__) - return new wxPMClientImplDC( window ); -#elif defined(__PALMOS__) - return new wxPalmClientImplDC( window ); -#endif -} - -wxImplDC* wxNativeDCFactory::CreatePaintDC( wxWindow *window ) -{ -#if defined(__WXMSW__) - return new wxWindowsPaintImplDC( window ); -#elif defined(__WXGTK20__) - return new wxGTKPaintImplDC( window ); -#elif defined(__WXGTK__) - return new wxGTKPaintImplDC( window ); -#elif defined(__WXMAC__) - return new wxMacPaintImplDC( window ); -#elif defined(__WXCOCOA__) - return new wxCocoaPaintImplDC( window ); -#elif defined(__WXMOTIF__) - return new wxMotifPaintImplDC( window ); -#elif defined(__WXX11__) - return new wxX11PaintImplDC( window ); -#elif defined(__WXMGL__) - return new wxMGLPaintImplDC( window ); -#elif defined(__WXDFB__) - return new wxDFBPaintImplDC( window ); -#elif defined(__WXPM__) - return new wxPMPaintImplDC( window ); -#elif defined(__PALMOS__) - return new wxPalmPaintImplDC( window ); -#endif -} - -wxImplDC* wxNativeDCFactory::CreateMemoryDC() -{ -#if defined(__WXMSW__) - return new wxWindowsMemoryImplDC(); -#elif defined(__WXGTK20__) - return new wxGTKMemoryImplDC(); -#elif defined(__WXGTK__) - return new wxGTKMemoryImplDC(); -#elif defined(__WXMAC__) - return new wxMacMemoryImplDC(); -#elif defined(__WXCOCOA__) - return new wxCocoaMemoryImplDC(); -#elif defined(__WXMOTIF__) - return new wxMotifMemoryImplDC(); -#elif defined(__WXX11__) - return new wxX11MemoryImplDC(); -#elif defined(__WXMGL__) - return new wxMGLMemoryImplDC(); -#elif defined(__WXDFB__) - return new wxDFBMemoryImplDC(); -#elif defined(__WXPM__) - return new wxPMMemoryImplDC(); -#elif defined(__PALMOS__) - return new wxPalmMemoryImplDC(); -#endif -} - -wxImplDC* wxNativeDCFactory::CreateMemoryDC( wxBitmap &bitmap ) -{ -#if defined(__WXMSW__) - return new wxWindowsMemoryImplDC( bitmap ); -#elif defined(__WXGTK20__) - return new wxGTKMemoryImplDC( bitmap ); -#elif defined(__WXGTK__) - return new wxGTKMemoryImplDC( bitmap ); -#elif defined(__WXMAC__) - return new wxMacMemoryImplDC( bitmap ); -#elif defined(__WXCOCOA__) - return new wxCocoaMemoryImplDC( bitmap ); -#elif defined(__WXMOTIF__) - return new wxMotifMemoryImplDC( bitmap ); -#elif defined(__WXX11__) - return new wxX11MemoryImplDC( bitmap ); -#elif defined(__WXMGL__) - return new wxMGLMemoryImplDC( bitmap ); -#elif defined(__WXDFB__) - return new wxDFBMemoryImplDC( bitmap ); -#elif defined(__WXPM__) - return new wxPMMemoryImplDC( bitmap ); -#elif defined(__PALMOS__) - return new wxPalmMemoryImplDC( bitmap ); -#endif -} - -wxImplDC* wxNativeDCFactory::CreateMemoryDC( wxDC *dc ) -{ -#if defined(__WXMSW__) - return new wxWindowsMemoryImplDC( dc ); -#elif defined(__WXGTK20__) - return new wxGTKMemoryImplDC( dc ); -#elif defined(__WXGTK__) - return new wxGTKMemoryImplDC( dc ); -#elif defined(__WXMAC__) - return new wxMacMemoryImplDC( dc ); -#elif defined(__WXCOCOA__) - return new wxCocoaMemoryImplDC( dc ); -#elif defined(__WXMOTIF__) - return new wxMotifMemoryImplDC( dc ); -#elif defined(__WXX11__) - return new wxX11MemoryImplDC( dc ); -#elif defined(__WXMGL__) - return new wxMGLMemoryImplDC( dc ); -#elif defined(__WXDFB__) - return new wxDFBMemoryImplDC( dc ); -#elif defined(__WXPM__) - return new wxPMMemoryImplDC( dc ); -#elif defined(__PALMOS__) - return new wxPalmMemoryImplDC( dc ); -#endif -} - -//----------------------------------------------------------------------------- -// 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() -{ -} - -#if WXWIN_COMPATIBILITY_2_8 - // for compatibility with the old code when wxCoord was long everywhere -void wxImplDC::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 wxImplDC::GetLogicalOrigin(long *x, long *y) const - { - wxCoord x2, y2; - DoGetLogicalOrigin(&x2, &y2); - if ( x ) - *x = x2; - if ( y ) - *y = y2; - } - -void wxImplDC::GetDeviceOrigin(long *x, long *y) const - { - wxCoord x2, y2; - DoGetDeviceOrigin(&x2, &y2); - if ( x ) - *x = x2; - if ( y ) - *y = y2; - } - -void wxImplDC::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 - - +IMPLEMENT_ABSTRACT_CLASS(wxGTKDCImpl, wxDCImpl) -// ---------------------------------------------------------------------------- -// 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_deviceLocalOriginX; -} - -wxCoord wxImplDC::LogicalToDeviceY(wxCoord y) const -{ - return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY + 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 - 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 - { - GetTextExtent(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( Ok(), wxT("invalid window dc") ); - - wxCoord x2 = x1 + width, - y2 = y1 + height; - - // the pen width is calibrated to give 3 for width == height == 10 - wxDCPenChanger pen(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; -} - -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; -} - -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::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; - } -} - -void wxImplDC::DrawSpline(int n, wxPoint points[]) -{ - wxList list; - for (int i =0; i < n; i++) - { - list.Append((wxObject*)&points[i]); - } - - DrawSpline(&list); -} - -// ----------------------------------- spline code ---------------------------------------- - -void wx_quadratic_spline(double a1, double b1, double a2, double b2, - double a3, double b3, double a4, double b4); -void wx_clear_stack(); -int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3, - double *y3, double *x4, double *y4); -void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, - double x4, double y4); -static bool wx_spline_add_point(double x, double y); -static void wx_spline_draw_point_array(wxDCBase *dc); - -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::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( Ok(), wxT("invalid window dc") ); - - wxPoint *p; - double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4; - double x1, y1, x2, y2; - - wxList::compatibility_iterator node = points->GetFirst(); - if (!node) - // empty list - return; - - p = (wxPoint *)node->GetData(); - - x1 = p->x; - y1 = p->y; - - node = node->GetNext(); - p = (wxPoint *)node->GetData(); - - x2 = p->x; - y2 = p->y; - cx1 = (double)((x1 + x2) / 2); - cy1 = (double)((y1 + y2) / 2); - cx2 = (double)((cx1 + x2) / 2); - cy2 = (double)((cy1 + y2) / 2); - - wx_spline_add_point(x1, y1); - - while ((node = node->GetNext()) -#if !wxUSE_STL - != NULL -#endif // !wxUSE_STL - ) - { - p = (wxPoint *)node->GetData(); - x1 = x2; - y1 = y2; - x2 = p->x; - y2 = p->y; - cx4 = (double)(x1 + x2) / 2; - cy4 = (double)(y1 + y2) / 2; - cx3 = (double)(x1 + cx4) / 2; - cy3 = (double)(y1 + cy4) / 2; - - wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4); - - cx1 = cx4; - cy1 = cy4; - cx2 = (double)(cx1 + x2) / 2; - cy2 = (double)(cy1 + y2) / 2; - } - - wx_spline_add_point( cx1, cy1 ); - wx_spline_add_point( x2, y2 ); - - wx_spline_draw_point_array( m_owner ); -} - -#endif // wxUSE_SPLINES - - -void wxImplDC::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() ) - { - DoDrawBitmap(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; - m_owner->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 - - DoDrawText(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--; - - DoDrawLine(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 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, 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, - 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(wxPoint(x + rect.GetLeft(), y + rect.GetTop())); - } - } - //return old pen color - m_pen.SetColour(oldPenColour); -} - -//----------------------------------------------------------------------------- -// wxDC -//----------------------------------------------------------------------------- - -IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject) - -#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 - - -#endif // wxUSE_NEW_DC - -//----------------------------------------------------------------------------- -// wxDC -//----------------------------------------------------------------------------- - -IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase) - -wxDC::wxDC() +wxGTKDCImpl::wxGTKDCImpl( wxDC *owner ) + : wxDCImpl( owner ) { m_ok = FALSE; @@ -1309,7 +28,11 @@ wxDC::wxDC() m_brush = *wxWHITE_BRUSH; } -void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) +wxGTKDCImpl::~wxGTKDCImpl() +{ +} + +void wxGTKDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { m_clipping = TRUE; m_clipX1 = x; @@ -1322,17 +45,17 @@ void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord hei // get DC capabilities // --------------------------------------------------------------------------- -void wxDC::DoGetSizeMM( int* width, int* height ) const +void wxGTKDCImpl::DoGetSizeMM( int* width, int* height ) const { int w = 0; int h = 0; - GetSize( &w, &h ); + GetOwner()->GetSize( &w, &h ); if (width) *width = int( double(w) / (m_userScaleX*m_mm_to_pix_x) ); if (height) *height = int( double(h) / (m_userScaleY*m_mm_to_pix_y) ); } // Resolution in pixels per logical inch -wxSize wxDC::GetPPI() const +wxSize wxGTKDCImpl::GetPPI() const { // TODO (should probably be pure virtual) return wxSize(0, 0);