118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
/**
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* @author Edouard DUPIN
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*
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* @copyright 2011, Edouard DUPIN, all right reserved
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*
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* @license BSD v3 (see license file)
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*/
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#include <parserSVG/Debug.h>
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#include <parserSVG/Polyline.h>
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#include <agg/agg_conv_stroke.h>
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#include <agg/agg_path_storage.h>
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svg::Polyline::Polyline(PaintState _parentPaintState) : svg::Base(_parentPaintState)
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{
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}
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svg::Polyline::~Polyline(void)
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{
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}
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bool svg::Polyline::Parse(exml::Element * _element, agg::trans_affine& _parentTrans, etk::Vector2D<float>& _sizeMax)
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{
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// line must have a minimum size...
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m_paint.strokeWidth = 1;
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if (NULL==_element) {
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return false;
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}
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ParseTransform(_element);
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ParsePaintAttr(_element);
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// add the property of the parrent modifications ...
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m_transformMatrix *= _parentTrans;
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etk::UString sss1 = _element->GetAttribute("points");
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if (sss1.Size()==0) {
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SVG_ERROR("(l "<<_element->Pos()<<") polyline: missing points attribute");
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return false;
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}
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_sizeMax.setValue(0,0);
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SVG_VERBOSE("Parse polyline : \"" << sss1 << "\"");
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etk::Char sss2 = sss1.c_str();
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const char* sss = sss2;
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while ('\0' != sss[0]) {
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etk::Vector2D<float> pos;
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int32_t n;
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if (sscanf(sss, "%f,%f %n", &pos.m_floats[0], &pos.m_floats[1], &n) == 2) {
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m_listPoint.PushBack(pos);
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_sizeMax.setValue(etk_max(_sizeMax.x(), pos.x()),
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etk_max(_sizeMax.y(), pos.y()));
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sss += n;
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} else {
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break;
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}
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}
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return true;
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}
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void svg::Polyline::Display(int32_t _spacing)
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{
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SVG_DEBUG(SpacingDist(_spacing) << "Polyline nbPoint=" << m_listPoint.Size());
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}
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void svg::Polyline::AggDraw(svg::Renderer& _myRenderer, agg::trans_affine& _basicTrans)
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{
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agg::path_storage path;
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path.start_new_path();
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path.move_to(m_listPoint[0].x(), m_listPoint[0].y());
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for( int32_t iii=1; iii< m_listPoint.Size(); iii++) {
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path.line_to(m_listPoint[iii].x(), m_listPoint[iii].y());
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}
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/*
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// configure the end of the line :
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switch (m_paint.lineCap) {
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case svg::LINECAP_SQUARE:
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path.line_cap(agg::square_cap);
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break;
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case svg::LINECAP_ROUND:
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path.line_cap(agg::round_cap);
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break;
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default: // svg::LINECAP_BUTT
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path.line_cap(agg::butt_cap);
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break;
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}
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switch (m_paint.lineJoin) {
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case svg::LINEJOIN_BEVEL:
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path.line_join(agg::bevel_join);
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break;
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case svg::LINEJOIN_ROUND:
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path.line_join(agg::round_join);
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break;
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default: // svg::LINEJOIN_MITER
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path.line_join(agg::miter_join);
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break;
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}
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*/
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agg::trans_affine mtx = m_transformMatrix;
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mtx *= _basicTrans;
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if (m_paint.strokeWidth > 0) {
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_myRenderer.m_renderArea->color(agg::rgba8(m_paint.stroke.r, m_paint.stroke.g, m_paint.stroke.b, m_paint.stroke.a));
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// Drawing as an outline
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agg::conv_stroke<agg::path_storage> myPolygonStroke(path);
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myPolygonStroke.width(m_paint.strokeWidth);
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agg::conv_transform<agg::conv_stroke<agg::path_storage>, agg::trans_affine> transStroke(myPolygonStroke, mtx);
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// set the filling mode :
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_myRenderer.m_rasterizer.filling_rule(agg::fill_non_zero);
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_myRenderer.m_rasterizer.add_path(transStroke);
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agg::render_scanlines(_myRenderer.m_rasterizer, _myRenderer.m_scanLine, *_myRenderer.m_renderArea);
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}
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}
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