- 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
-
-
-#else // wxUSE_NEW_DC
-
-
-// bool wxDCBase::sm_cacheing = false;
-
-IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject)
-
-// ============================================================================
-// implementation
-// ============================================================================
-
-IMPLEMENT_DYNAMIC_CLASS(wxBufferedDC, wxMemoryDC)
-IMPLEMENT_ABSTRACT_CLASS(wxBufferedPaintDC, wxBufferedDC)
-
-wxDCBase::wxDCBase()
- : m_colour(wxColourDisplay())
- , m_ok(true)
- , m_clipping(false)
- , m_isInteractive(0)
- , m_isBBoxValid(false)
- , m_logicalOriginX(0), m_logicalOriginY(0)
- , m_deviceOriginX(0), m_deviceOriginY(0)
- , m_deviceLocalOriginX(0), m_deviceLocalOriginY(0)
- , m_logicalScaleX(1.0), m_logicalScaleY(1.0)
- , m_userScaleX(1.0), m_userScaleY(1.0)
- , m_scaleX(1.0), m_scaleY(1.0)
- , m_signX(1), m_signY(1)
- , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
- , m_clipX1(0), m_clipY1(0), m_clipX2(0), m_clipY2(0)
- , m_logicalFunction(wxCOPY)
- , m_backgroundMode(wxTRANSPARENT)
- , m_mappingMode(wxMM_TEXT)
- , m_pen()
- , m_brush()
- , m_backgroundBrush(*wxTRANSPARENT_BRUSH)
- , m_textForegroundColour(*wxBLACK)
- , m_textBackgroundColour(*wxWHITE)
- , m_font()
-#if wxUSE_PALETTE
- , m_palette()
- , m_hasCustomPalette(false)
-#endif // wxUSE_PALETTE
-{
- m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() /
- (double)wxGetDisplaySizeMM().GetWidth();
- m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() /
- (double)wxGetDisplaySizeMM().GetHeight();
-
- ResetBoundingBox();
- ResetClipping();
-}
-
-wxDCBase::~wxDCBase()
-{
-}
-
-#if WXWIN_COMPATIBILITY_2_6
-void wxDCBase::BeginDrawing()
-{
-}
-
-void wxDCBase::EndDrawing()
-{
-}
-#endif // WXWIN_COMPATIBILITY_2_6
-
-#if WXWIN_COMPATIBILITY_2_8
- // for compatibility with the old code when wxCoord was long everywhere
-void wxDCBase::GetTextExtent(const wxString& string,
- long *x, long *y,
- long *descent,
- long *externalLeading,
- const wxFont *theFont) const
- {
- wxCoord x2, y2, descent2, externalLeading2;
- DoGetTextExtent(string, &x2, &y2,
- &descent2, &externalLeading2,
- theFont);
- if ( x )
- *x = x2;
- if ( y )
- *y = y2;
- if ( descent )
- *descent = descent2;
- if ( externalLeading )
- *externalLeading = externalLeading2;
- }
-
-void wxDCBase::GetLogicalOrigin(long *x, long *y) const
- {
- wxCoord x2, y2;
- DoGetLogicalOrigin(&x2, &y2);
- if ( x )
- *x = x2;
- if ( y )
- *y = y2;
- }
-
-void wxDCBase::GetDeviceOrigin(long *x, long *y) const
- {
- wxCoord x2, y2;
- DoGetDeviceOrigin(&x2, &y2);
- if ( x )
- *x = x2;
- if ( y )
- *y = y2;
- }
-
-void wxDCBase::GetClippingBox(long *x, long *y, long *w, long *h) const
- {
- wxCoord xx,yy,ww,hh;
- DoGetClippingBox(&xx, &yy, &ww, &hh);
- if (x) *x = xx;
- if (y) *y = yy;
- if (w) *w = ww;
- if (h) *h = hh;
- }
-#endif // WXWIN_COMPATIBILITY_2_8
-
-
-
-// ----------------------------------------------------------------------------
-// coordinate conversions and transforms
-// ----------------------------------------------------------------------------
-
-wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
-{
- return wxRound((double)(x - m_deviceOriginX - m_deviceLocalOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
-}
-
-wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
-{
- return wxRound((double)(y - m_deviceOriginY - m_deviceLocalOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
-}
-
-wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
-{
- return wxRound((double)(x) / m_scaleX);
-}
-
-wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
-{
- return wxRound((double)(y) / m_scaleY);
-}
-
-wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
-{
- return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX + m_deviceLocalOriginX;
-}
-
-wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
-{
- return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY + m_deviceLocalOriginY;
-}
-
-wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
-{
- return wxRound((double)(x) * m_scaleX);
-}
-
-wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
-{
- return wxRound((double)(y) * m_scaleY);
-}
-
-void wxDCBase::ComputeScaleAndOrigin()
-{
- m_scaleX = m_logicalScaleX * m_userScaleX;
- m_scaleY = m_logicalScaleY * m_userScaleY;
-}
-
-void wxDCBase::SetMapMode( int mode )
-{
- switch (mode)
- {
- case wxMM_TWIPS:
- SetLogicalScale( twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y );
- break;
- case wxMM_POINTS:
- SetLogicalScale( pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y );
- break;
- case wxMM_METRIC:
- SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
- break;
- case wxMM_LOMETRIC:
- SetLogicalScale( m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0 );
- break;
- default:
- case wxMM_TEXT:
- SetLogicalScale( 1.0, 1.0 );
- break;
- }
- m_mappingMode = mode;
-}
-
-void wxDCBase::SetUserScale( double x, double y )
-{
- // allow negative ? -> no
- m_userScaleX = x;
- m_userScaleY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::SetLogicalScale( double x, double y )
-{
- // allow negative ?
- m_logicalScaleX = x;
- m_logicalScaleY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::SetLogicalOrigin( wxCoord x, wxCoord y )
-{
- m_logicalOriginX = x * m_signX;
- m_logicalOriginY = y * m_signY;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::SetDeviceOrigin( wxCoord x, wxCoord y )
-{
- m_deviceOriginX = x;
- m_deviceOriginY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::SetDeviceLocalOrigin( wxCoord x, wxCoord y )
-{
- m_deviceLocalOriginX = x;
- m_deviceLocalOriginY = y;
- ComputeScaleAndOrigin();
-}
-
-void wxDCBase::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
-{
- // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there
- m_signX = (xLeftRight ? 1 : -1);
- m_signY = (yBottomUp ? -1 : 1);
- ComputeScaleAndOrigin();
-}
-
-// ----------------------------------------------------------------------------
-// special symbols
-// ----------------------------------------------------------------------------
-
-void wxDCBase::DoDrawCheckMark(wxCoord x1, wxCoord y1,
- wxCoord width, wxCoord height)
-{
- wxCHECK_RET( Ok(), wxT("invalid window dc") );
-
- wxCoord x2 = x1 + width,
- y2 = y1 + height;
-
- // the pen width is calibrated to give 3 for width == height == 10
- wxDCPenChanger pen((wxDC&)*this,
- wxPen(GetTextForeground(), (width + height + 1)/7));
-
- // we're drawing a scaled version of wx/generic/tick.xpm here
- wxCoord x3 = x1 + (4*width) / 10, // x of the tick bottom
- y3 = y1 + height / 2; // y of the left tick branch
- DoDrawLine(x1, y3, x3, y2);
- DoDrawLine(x3, y2, x2, y1);
-
- CalcBoundingBox(x1, y1);
- CalcBoundingBox(x2, y2);
-}
-
-// ----------------------------------------------------------------------------
-// stubs for functions not implemented in all ports
-// ----------------------------------------------------------------------------
-
-bool
-wxDCBase::DoStretchBlit(wxCoord xdest, wxCoord ydest,
- wxCoord dstWidth, wxCoord dstHeight,
- wxDC *source,
- wxCoord xsrc, wxCoord ysrc,
- wxCoord srcWidth, wxCoord srcHeight,
- int rop,
- bool useMask,
- wxCoord xsrcMask,
- wxCoord ysrcMask)
-{
- wxCHECK_MSG( srcWidth && srcHeight && dstWidth && dstHeight, false,
- _T("invalid blit size") );
-
- // emulate the stretching by modifying the DC scale
- double xscale = (double)srcWidth/dstWidth,
- yscale = (double)srcHeight/dstHeight;
-
- double xscaleOld, yscaleOld;
- GetUserScale(&xscaleOld, &yscaleOld);
- SetUserScale(xscaleOld/xscale, yscaleOld/yscale);
-
- bool rc = DoBlit(wxCoord(xdest*xscale), wxCoord(ydest*yscale),
- wxCoord(dstWidth*xscale), wxCoord(dstHeight*yscale),
- source,
- xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
-
- SetUserScale(xscaleOld, yscaleOld);
-
- return rc;
-}
-
-// ----------------------------------------------------------------------------
-// line/polygons
-// ----------------------------------------------------------------------------
-
-void wxDCBase::DrawLines(const 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 wxDCBase::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
-wxDCBase::DoDrawPolyPolygon(int n,
- int count[],
- wxPoint points[],
- wxCoord xoffset, wxCoord yoffset,
- int fillStyle)
-{
- if ( n == 1 )
- {
- DoDrawPolygon(count[0], points, xoffset, yoffset, fillStyle);
- return;
- }
-
- int i, j, lastOfs;
- wxPoint* pts;
- wxPen pen;
-
- for (i = j = lastOfs = 0; i < n; i++)
- {
- lastOfs = j;
- j += count[i];
- }
- pts = new wxPoint[j+n-1];
- for (i = 0; i < j; i++)
- pts[i] = points[i];
- for (i = 2; i <= n; i++)
- {
- lastOfs -= count[n-i];
- pts[j++] = pts[lastOfs];
- }
-
- pen = GetPen();
- SetPen(wxPen(*wxBLACK, 0, wxTRANSPARENT));
- DoDrawPolygon(j, pts, xoffset, yoffset, fillStyle);
- SetPen(pen);
- for (i = j = 0; i < n; i++)
- {
- DoDrawLines(count[i], pts+j, xoffset, yoffset);
- j += count[i];
- }
- delete[] pts;
-}
-
-// ----------------------------------------------------------------------------
-// splines
-// ----------------------------------------------------------------------------
-
-#if wxUSE_SPLINES
-
-// TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?)
-void wxDCBase::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 wxDCBase::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(wxDCBase *dc)
-{
- dc->DrawLines(&wx_spline_point_list, 0, 0 );
- wxList::compatibility_iterator node = wx_spline_point_list.GetFirst();
- while (node)
- {
- wxPoint *point = (wxPoint *)node->GetData();
- delete point;
- wx_spline_point_list.Erase(node);
- node = wx_spline_point_list.GetFirst();
- }
-}
-
-void wxDCBase::DoDrawSpline( wxList *points )
-{
- wxCHECK_RET( Ok(), wxT("invalid window dc") );
-
- wxPoint *p;
- double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
- double x1, y1, x2, y2;
-
- wxList::compatibility_iterator node = points->GetFirst();
- if (!node)
- // empty list
- return;
-
- p = (wxPoint *)node->GetData();
-
- x1 = p->x;
- y1 = p->y;
-
- node = node->GetNext();
- p = (wxPoint *)node->GetData();
-
- x2 = p->x;
- y2 = p->y;
- cx1 = (double)((x1 + x2) / 2);
- cy1 = (double)((y1 + y2) / 2);
- cx2 = (double)((cx1 + x2) / 2);
- cy2 = (double)((cy1 + y2) / 2);
-
- wx_spline_add_point(x1, y1);
-
- while ((node = node->GetNext())
-#if !wxUSE_STL
- != NULL
-#endif // !wxUSE_STL
- )
- {
- p = (wxPoint *)node->GetData();
- x1 = x2;
- y1 = y2;
- x2 = p->x;
- y2 = p->y;
- cx4 = (double)(x1 + x2) / 2;
- cy4 = (double)(y1 + y2) / 2;
- cx3 = (double)(x1 + cx4) / 2;
- cy3 = (double)(y1 + cy4) / 2;
-
- wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
-
- cx1 = cx4;
- cy1 = cy4;
- cx2 = (double)(cx1 + x2) / 2;
- cy2 = (double)(cy1 + y2) / 2;
- }
-
- wx_spline_add_point( cx1, cy1 );
- wx_spline_add_point( x2, y2 );
-
- wx_spline_draw_point_array( this );
-}
-
-#endif // wxUSE_SPLINES
-
-// ----------------------------------------------------------------------------
-// Partial Text Extents
-// ----------------------------------------------------------------------------
-
-
-// Each element of the widths array will be the width of the string up to and
-// including the corresponding character in text. This is the generic
-// implementation, the port-specific classes should do this with native APIs
-// if available and if faster. Note: pango_layout_index_to_pos is much slower
-// than calling GetTextExtent!!
-
-#define FWC_SIZE 256
-
-class FontWidthCache
-{
-public:
- FontWidthCache() : m_scaleX(1), m_widths(NULL) { }
- ~FontWidthCache() { delete []m_widths; }
-
- void Reset()
- {
- if (!m_widths)
- m_widths = new int[FWC_SIZE];
-
- memset(m_widths, 0, sizeof(int)*FWC_SIZE);
- }
-
- wxFont m_font;
- double m_scaleX;
- int *m_widths;
-};
-
-static FontWidthCache s_fontWidthCache;
-
-bool wxDCBase::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
-{
- int totalWidth = 0;
-
- const size_t len = text.length();
- widths.Empty();
- widths.Add(0, len);
-
- // reset the cache if font or horizontal scale have changed
- if ( !s_fontWidthCache.m_widths ||
- !wxIsSameDouble(s_fontWidthCache.m_scaleX, m_scaleX) ||
- (s_fontWidthCache.m_font != GetFont()) )
- {
- s_fontWidthCache.Reset();
- s_fontWidthCache.m_font = GetFont();
- s_fontWidthCache.m_scaleX = m_scaleX;
- }
-
- // Calculate the position of each character based on the widths of
- // the previous characters
- int w, h;
- for ( size_t i = 0; i < len; i++ )
- {
- const wxChar c = text[i];
- unsigned int c_int = (unsigned int)c;
-
- if ((c_int < FWC_SIZE) && (s_fontWidthCache.m_widths[c_int] != 0))
- {
- w = s_fontWidthCache.m_widths[c_int];
- }
- else
- {
- GetTextExtent(c, &w, &h);
- if (c_int < FWC_SIZE)
- s_fontWidthCache.m_widths[c_int] = w;
projects / wxWidgets.git / blobdiff