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82904d4603
Add pixel_ratio to graphics params to use it for displays with high resolution. It holds the ratio between physical pixels and device-independent pixels of the graphics.
111 lines
1.9 KiB
C++
111 lines
1.9 KiB
C++
/**
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* \file GraphicsParams.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Angus Leeming
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "GraphicsParams.h"
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#include "Length.h"
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#include <cstdlib>
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#include <sstream>
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using namespace std;
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namespace lyx {
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namespace graphics {
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Params::Params()
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: display(true),
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scale(100),
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pixel_ratio(1.0),
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angle(0)
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{}
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bool operator==(Params const & a, Params const & b)
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{
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return (a.filename == b.filename &&
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a.display == b.display &&
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a.bb == b.bb &&
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a.scale == b.scale &&
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a.pixel_ratio == b.pixel_ratio &&
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a.angle == b.angle);
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}
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bool operator!=(Params const & a, Params const & b)
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{
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return !(a == b);
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}
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ostream & operator<<(ostream & os, BoundingBox const & bb)
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{
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os << bb.xl << ' ' << bb.yb << ' ' << bb.xr << ' ' << bb.yt;
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return os;
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}
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BoundingBox::BoundingBox()
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: xl(0), yb(0), xr(0), yt(0)
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{}
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BoundingBox::BoundingBox(string const & bb)
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: xl(0), yb(0), xr(0), yt(0)
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{
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if (bb.empty())
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return;
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istringstream is(bb.c_str());
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string a, b, c, d;
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is >> a >> b >> c >> d;
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// inBP returns the length in Postscript points.
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// Note further that there are 72 Postscript pixels per inch.
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unsigned int const xl_tmp = abs(Length(a).inBP());
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unsigned int const yb_tmp = abs(Length(b).inBP());
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unsigned int const xr_tmp = abs(Length(c).inBP());
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unsigned int const yt_tmp = abs(Length(d).inBP());
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if (xr_tmp <= xl_tmp || yt_tmp <= yb_tmp)
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return;
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xl = xl_tmp;
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yb = yb_tmp;
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xr = xr_tmp;
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yt = yt_tmp;
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}
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bool BoundingBox::empty() const
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{
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return (!xl && !yb && !xr && !yt);
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}
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bool operator==(BoundingBox const & a, BoundingBox const & b)
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{
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return (a.xl == b.xl &&
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a.yb == b.yb &&
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a.xr == b.xr &&
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a.yt == b.yt);
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}
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bool operator!=(BoundingBox const & a, BoundingBox const & b)
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{
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return !(a == b);
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}
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} // namespace graphics
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} // namespace lyx
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