130 lines
3.4 KiB
C++
130 lines
3.4 KiB
C++
/**
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*******************************************************************************
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* @file parserSVG/Polyline.cpp
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* @brief basic Poliline parsing (Sources)
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* @author Edouard DUPIN
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* @date 20/03/2012
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* @par Project
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* parserSVG
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*
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* @par Copyright
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* Copyright 2011 Edouard DUPIN, all right reserved
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*
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* This software is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY.
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*
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* Licence summary :
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* You can modify and redistribute the sources code and binaries.
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* You can send me the bug-fix
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*
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* Term of the licence in in the file licence.txt.
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*
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*******************************************************************************
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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(TiXmlNode * node, 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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ParseTransform(node);
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ParsePaintAttr(node);
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// add the property of the parrent modifications ...
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m_transformMatrix *= parentTrans;
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const char *sss = node->ToElement()->Attribute("points");
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if (NULL == sss) {
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SVG_ERROR("(l "<<node->Row()<<") polyline: missing points attribute");
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return false;
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}
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sizeMax.x = 0;
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sizeMax.y = 0;
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SVG_VERBOSE("Parse polyline : \"" << sss << "\"");
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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.x, &pos.y, &n) == 2) {
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m_listPoint.PushBack(pos);
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sizeMax.x = etk_max(sizeMax.x, pos.x);
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sizeMax.y = 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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