mirror of
https://github.com/pdf2htmlEX/pdf2htmlEX.git
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97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
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/*
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* Draw.cc
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*
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* Handling path drawing
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*
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* by WangLu
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* 2012.10.01
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*/
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#include "HTMLRenderer.h"
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#include "util.h"
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#include "namespace.h"
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namespace pdf2htmlEX {
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using std::swap;
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static bool is_horizontal_line(GfxSubpath * path)
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{
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return ((path->getNumPoints() == 2)
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&& (!path->getCurve(1))
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&& (_equal(path->getY(0), path->getY(1))));
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}
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static bool is_rectangle(GfxSubpath * path)
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{
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if (!(((path->getNumPoints() != 4) && (path->isClosed()))
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|| ((path->getNumPoints() == 5)
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&& _equal(path->getX(0), path->getX(4))
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&& _equal(path->getY(0), path->getY(4)))))
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return false;
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return (_equal(path->getY(0), path->getY(1))
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&& _equal(path->getX(1), path->getX(2))
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&& _equal(path->getY(2), path->getY(3))
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&& _equal(path->getX(3), path->getX(0)))
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|| (_equal(path->getX(0), path->getX(1))
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&& _equal(path->getY(1), path->getY(2))
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&& _equal(path->getX(2), path->getX(3))
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&& _equal(path->getY(3), path->getY(0)));
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}
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//TODO track state
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//TODO connection style
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void HTMLRenderer::stroke(GfxState *state)
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{
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GfxPath * path = state->getPath();
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for(int i = 0; i < path->getNumSubpaths(); ++i)
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{
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GfxSubpath * subpath = path->getSubpath(i);
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if(is_horizontal_line(subpath))
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{
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close_text_line();
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double x1 = subpath->getX(0);
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double x2 = subpath->getX(1);
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double y = subpath->getY(0);
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if(x1 > x2) swap(x1, x2);
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_transform(state->getCTM(), x1, y);
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html_fout << "<div style=\"border:solid red;border-width:1px 0 0 0;position:absolute;bottom:"
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<< _round(y) << "px;left:"
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<< _round(x1) << "px;width:"
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<< _round(x2-x1) << "px;height:0;\"></div>";
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}
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else if (is_rectangle(subpath))
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{
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close_text_line();
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double x1 = subpath->getX(0);
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double x2 = subpath->getX(2);
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double y1 = subpath->getY(0);
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double y2 = subpath->getY(2);
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if(x1 > x2) swap(x1, x2);
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if(y1 > y2) swap(y1, y2);
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double x,y,w,h,w1,w2;
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css_fix_rectangle_border_width(x1, y1, x2, y2, state->getLineWidth(),
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x,y,w,h,w1,w2);
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_transform(state->getCTM(), x, y);
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html_fout << "<div class=\"cr t" << install_transform_matrix(state->getCTM())
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<< "\" style=\"border:solid red;border-width:"
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<< _round(w1) << "px "
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<< _round(w2) << " px;left:"
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<< _round(x) << "px;bottom:"
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<< _round(y) << "px;width:"
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<< _round(w) << "px;height:"
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<< _round(h) << "px;\"></div>";
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}
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}
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}
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} // namespace pdf2htmlEX
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