void wxSVGCanvasCairo::DrawPath(cairo_t* cr, wxSVGCanvasPathCairo& canvasPath, const wxSVGMatrix& matrix,
const wxCSSStyleDeclaration& style, wxSVGSVGElement& svgElem) {
SetMatrix(cr, matrix);
// Filling
if (canvasPath.GetFill() && style.GetFill().Ok() && style.GetFill().GetPaintType() != wxSVG_PAINTTYPE_NONE) {
cairo_path_t* path = canvasPath.GetPath();
cairo_append_path(cr, path);
SetPaint(cr, style.GetFill(), style.GetOpacity()*style.GetFillOpacity(), canvasPath, svgElem, matrix);
cairo_fill(cr);
cairo_path_destroy(path);
}
// Stroking
if (style.GetStroke().Ok() && style.GetStrokeWidth() > 0
&& style.GetStroke().GetPaintType() != wxSVG_PAINTTYPE_NONE) {
cairo_path_t* path = canvasPath.GetPath();
cairo_append_path(cr, path);
SetPaint(cr, style.GetStroke(), style.GetOpacity()*style.GetStrokeOpacity(), canvasPath, svgElem, matrix);
wxSVGCanvasPathCairo::ApplyStrokeStyle(cr, style);
cairo_stroke(cr);
cairo_path_destroy(path);
}
// marker
if (style.HasMarkerStart()) {
DrawMarker(style.GetMarkerStart().GetStringValue(), wxSVGMark::START, canvasPath, matrix, style, svgElem);
}
if (style.HasMarkerMid()) {
DrawMarker(style.GetMarkerMid().GetStringValue(), wxSVGMark::MID, canvasPath, matrix, style, svgElem);
}
if (style.HasMarkerEnd()) {
DrawMarker(style.GetMarkerEnd().GetStringValue(), wxSVGMark::END, canvasPath, matrix, style, svgElem);
}
}
void wxSVGCanvasCairo::DrawMarker(const wxString& uri, wxSVGMark::Type type, wxSVGCanvasPathCairo& canvasPath,
const wxSVGMatrix& matrix, const wxCSSStyleDeclaration& style, wxSVGSVGElement& svgElem) {
wxSVGMarkerElement* markerElem = GetMarkerElement(svgElem, uri);
if (markerElem == NULL || markerElem->GetMarkerWidth().GetAnimVal() <= 0
|| markerElem->GetMarkerHeight().GetAnimVal() <= 0)
return;
vector<wxSVGMark> markPoints = canvasPath.GetMarkPoints();
for (vector<wxSVGMark>::iterator it = markPoints.begin(); it != markPoints.end(); it++) {
if (it->type != type)
continue;
wxSVGMark& markPoint = *it;
double scaleX = matrix.GetA() * style.GetStrokeWidth();
double scaleY = matrix.GetD() * style.GetStrokeWidth();
markerElem->SetOwnerSVGElement(&svgElem);
markerElem->SetViewportElement(&svgElem);
cairo_surface_t* surface = cairo_image_surface_create(
CAIRO_FORMAT_ARGB32,
lround(markerElem->GetMarkerWidth().GetAnimVal() * scaleX),
lround(markerElem->GetMarkerHeight().GetAnimVal() * scaleY));
cairo_t* cr = cairo_create(surface);
wxSVGMatrix markerMatrix;
markerMatrix = markerMatrix.ScaleNonUniform(scaleX, scaleY);
wxCSSStyleDeclaration style;
DrawMask(cr, markerElem, markerMatrix, style, svgElem);
// draw surface
cairo_save(m_cr);
double refX = markerElem->GetRefX().GetAnimVal() * style.GetStrokeWidth();
double refY = markerElem->GetRefY().GetAnimVal() * style.GetStrokeWidth();
wxSVGPoint point(markPoint.x - refX, markPoint.y - refY);
point = point.MatrixTransform(matrix);
wxSVGMatrix m;
m = m.Translate(point.GetX(), point.GetY());
if (markPoint.angle != 0) {
refX = markerElem->GetRefX().GetAnimVal() * scaleX;
refY = markerElem->GetRefY().GetAnimVal() * scaleY;
m = m.Translate(refX, refY).Rotate(markPoint.angle / M_PI * 180).Translate(-refX, -refY);
}
SetMatrix(m_cr, m);
cairo_set_source_surface(m_cr, surface, 0, 0);
cairo_paint(m_cr);
cairo_restore(m_cr);
cairo_destroy(cr);
cairo_surface_destroy(surface);
}
}
wxSVGRect wxSVGCanvasPathCairo::GetResultBBox(const wxCSSStyleDeclaration& style, const wxSVGMatrix& matrix) {
if (&matrix) {
cairo_matrix_t m;
cairo_matrix_init(&m, matrix.GetA(), matrix.GetB(), matrix.GetC(), matrix.GetD(), matrix.GetE(), matrix.GetF());
cairo_set_matrix(m_cr, &m);
}
ApplyStrokeStyle(m_cr, style);
double x1, y1, x2, y2;
if (style.GetStrokeWidth() > 0)
cairo_stroke_extents(m_cr, &x1, &y1, &x2, &y2);
else
cairo_fill_extents(m_cr, &x1, &y1, &x2, &y2);
if (&matrix) {
cairo_matrix_t mat;
cairo_matrix_init(&mat, 1, 0, 0, 1, 0, 0);
cairo_set_matrix(m_cr, &mat);
}
return wxSVGRect(x1, y1, x2 - x1, y2 - y1);
}
void wxSVGCanvasPathCairo::ApplyStrokeStyle(cairo_t* cr, const wxCSSStyleDeclaration& style) {
cairo_set_line_width(cr, style.GetStrokeWidth());
switch (style.GetStrokeLinecap()) {
case wxCSS_VALUE_ROUND:
cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
break;
case wxCSS_VALUE_SQUARE:
cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE);
break;
case wxCSS_VALUE_BUTT:
default:
cairo_set_line_cap(cr, CAIRO_LINE_CAP_BUTT);
break;
}
switch (style.GetStrokeLinejoin()) {
case wxCSS_VALUE_BEVEL:
cairo_set_line_join(cr, CAIRO_LINE_JOIN_BEVEL);
break;
case wxCSS_VALUE_ROUND:
cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
break;
case wxCSS_VALUE_MITER:
default:
cairo_set_line_join(cr, CAIRO_LINE_JOIN_MITER);
break;
}
if (style.GetStrokeDasharray().GetLength() > 0) {
double* dashed = new double[style.GetStrokeDasharray().GetLength()];
for (int i = 0; i < style.GetStrokeDasharray().GetLength(); i++) {
dashed[i] = style.GetStrokeDasharray().Item(i).GetFloatValue();
}
cairo_set_dash(cr, dashed, style.GetStrokeDasharray().GetLength(), 0.0);
delete dashed;
} else
cairo_set_dash(cr, NULL, 0, 0);
}
