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b39fb17316
Make sure that math insets have a proper buffer. To this end, make the
Buffer* parameter of InsetMath mandatory and fix the compilation
errors that ensue.
(cherry picked from commit c013799887)
355 lines
9.0 KiB
C++
355 lines
9.0 KiB
C++
/**
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* \file InsetMathSpace.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 André Pönitz
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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 "InsetMathSpace.h"
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#include "MathData.h"
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#include "MathFactory.h"
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#include "MathStream.h"
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#include "MathSupport.h"
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#include "BufferView.h"
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#include "Cursor.h"
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#include "FuncRequest.h"
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#include "FuncStatus.h"
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#include "LaTeXFeatures.h"
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#include "MetricsInfo.h"
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#include "insets/InsetSpace.h"
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#include "frontends/Application.h"
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#include "frontends/Painter.h"
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#include "support/lassert.h"
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using namespace std;
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namespace lyx {
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namespace {
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struct SpaceInfo {
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string name;
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int width;
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InsetSpaceParams::Kind kind;
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bool negative;
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bool visible;
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bool custom;
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bool escape; ///< whether a backslash needs to be added for writing
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};
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SpaceInfo space_info[] = {
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// name width kind negative visible custom escape
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{"!", 6, InsetSpaceParams::NEGTHIN, true, true, false, true},
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{"negthinspace", 6, InsetSpaceParams::NEGTHIN, true, true, false, true},
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{"negmedspace", 8, InsetSpaceParams::NEGMEDIUM, true, true, false, true},
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{"negthickspace", 10, InsetSpaceParams::NEGTHICK, true, true, false, true},
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{",", 6, InsetSpaceParams::THIN, false, true, false, true},
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{"thinspace", 6, InsetSpaceParams::THIN, false, true, false, true},
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{":", 8, InsetSpaceParams::MEDIUM, false, true, false, true},
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{"medspace", 8, InsetSpaceParams::MEDIUM, false, true, false, true},
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{";", 10, InsetSpaceParams::THICK, false, true, false, true},
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{"thickspace", 10, InsetSpaceParams::THICK, false, true, false, true},
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{"enskip", 10, InsetSpaceParams::ENSKIP, false, true, false, true},
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{"enspace", 10, InsetSpaceParams::ENSPACE, false, true, false, true},
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{"quad", 20, InsetSpaceParams::QUAD, false, true, false, true},
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{"qquad", 40, InsetSpaceParams::QQUAD, false, true, false, true},
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{"lyxnegspace", -2, InsetSpaceParams::NEGTHIN, true, false, false, true},
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{"lyxposspace", 2, InsetSpaceParams::THIN, false, false, false, true},
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{"hfill", 80, InsetSpaceParams::HFILL, false, true, false, true},
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{"hspace*{\\fill}", 80, InsetSpaceParams::HFILL_PROTECTED, false, true, false, true},
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{"hspace*", 0, InsetSpaceParams::CUSTOM_PROTECTED,false, true, true, true},
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{"hspace", 0, InsetSpaceParams::CUSTOM, false, true, true, true},
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{" ", 10, InsetSpaceParams::NORMAL, false, true, false, true},
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{"~", 10, InsetSpaceParams::PROTECTED, false, true, false, false},
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};
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int const nSpace = sizeof(space_info)/sizeof(SpaceInfo);
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int const defaultSpace = 4;
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} // namespace
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InsetMathSpace::InsetMathSpace(Buffer * buf)
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: InsetMath(buf), space_(defaultSpace)
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{
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}
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InsetMathSpace::InsetMathSpace(Buffer * buf, string const & name, string const & length)
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: InsetMath(buf), space_(defaultSpace)
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{
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for (int i = 0; i < nSpace; ++i)
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if (space_info[i].name == name) {
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space_ = i;
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break;
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}
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if (space_info[space_].custom) {
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length_ = Length(length);
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if (length_.zero() || length_.empty()) {
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length_.value(1.0);
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length_.unit(Length::EM);
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}
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}
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}
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InsetMathSpace::InsetMathSpace(Buffer * buf, Length const & length, bool const prot)
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: InsetMath(buf), space_(defaultSpace), length_(length)
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{
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for (int i = 0; i < nSpace; ++i)
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if ((prot && space_info[i].name == "hspace*")
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|| (!prot && space_info[i].name == "hspace")) {
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space_ = i;
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break;
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}
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}
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Inset * InsetMathSpace::clone() const
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{
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return new InsetMathSpace(*this);
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}
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void InsetMathSpace::metrics(MetricsInfo & mi, Dimension & dim) const
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{
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Changer dummy = mi.base.changeEnsureMath();
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dim.asc = 4;
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dim.des = 0;
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if (space_info[space_].custom)
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dim.wid = abs(mi.base.inPixels(length_));
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else
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dim.wid = space_info[space_].width;
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}
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void InsetMathSpace::draw(PainterInfo & pi, int x, int y) const
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{
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Changer dummy = pi.base.changeEnsureMath();
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// Sadly, HP-UX CC can't handle that kind of initialization.
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// XPoint p[4] = {{++x, y-3}, {x, y}, {x+width-2, y}, {x+width-2, y-3}};
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if (!space_info[space_].visible)
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return;
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Dimension const dim = dimension(*pi.base.bv);
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int xp[4];
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int yp[4];
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int w = dim.wid;
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xp[0] = ++x; yp[0] = y - 3;
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xp[1] = x; yp[1] = y;
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xp[2] = x + w - 2; yp[2] = y;
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xp[3] = x + w - 2; yp[3] = y - 3;
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pi.pain.lines(xp, yp, 4,
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space_info[space_].custom ?
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Color_special :
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(isNegative() ? Color_latex : Color_math));
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}
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void InsetMathSpace::incSpace()
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{
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int const oldwidth = space_info[space_].width;
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do
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space_ = (space_ + 1) % nSpace;
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while ((space_info[space_].width == oldwidth && !space_info[space_].custom) ||
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!space_info[space_].visible);
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if (space_info[space_].custom && (length_.zero() || length_.empty())) {
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length_.value(1.0);
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length_.unit(Length::EM);
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}
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}
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void InsetMathSpace::validate(LaTeXFeatures & features) const
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{
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if (space_info[space_].name == "negmedspace" ||
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space_info[space_].name == "negthickspace")
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features.require("amsmath");
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}
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void InsetMathSpace::maple(MapleStream & os) const
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{
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os << ' ';
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}
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void InsetMathSpace::mathematica(MathematicaStream & os) const
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{
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os << ' ';
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}
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void InsetMathSpace::octave(OctaveStream & os) const
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{
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os << ' ';
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}
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void InsetMathSpace::mathmlize(MathMLStream & ms) const
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{
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SpaceInfo const & si = space_info[space_];
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if (si.negative || !si.visible)
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return;
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string l;
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if (si.custom)
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l = length_.asHTMLString();
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else if (si.kind != InsetSpaceParams::MEDIUM)
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l = to_string(si.width) + "px";
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std::string attr;
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if (!l.empty())
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attr = "width=\"" + l + "\"";
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ms << CTag("mspace", attr);
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}
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void InsetMathSpace::htmlize(HtmlStream & ms) const
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{
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SpaceInfo const & si = space_info[space_];
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switch (si.kind) {
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case InsetSpaceParams::THIN:
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ms << from_ascii(" "); // HTML:  
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break;
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case InsetSpaceParams::MEDIUM:
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ms << from_ascii(" ");
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break;
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case InsetSpaceParams::THICK:
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ms << from_ascii(" "); // HTML:  
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break;
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case InsetSpaceParams::ENSKIP:
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case InsetSpaceParams::ENSPACE:
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ms << from_ascii(" "); // HTML:  
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break;
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case InsetSpaceParams::QUAD:
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ms << from_ascii(" "); // HTML:  
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break;
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case InsetSpaceParams::QQUAD:
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ms << from_ascii("  "); // HTML:   
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break;
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case InsetSpaceParams::HFILL:
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case InsetSpaceParams::HFILL_PROTECTED:
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// FIXME: is there a useful HTML entity?
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break;
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case InsetSpaceParams::CUSTOM:
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case InsetSpaceParams::CUSTOM_PROTECTED: {
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string l = length_.asHTMLString();
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ms << MTag("span", "width='" + l + "'")
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<< from_ascii(" ") << ETag("span");
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break;
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}
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case InsetSpaceParams::NORMAL:
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case InsetSpaceParams::PROTECTED:
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ms << from_ascii(" ");
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break;
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default:
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break;
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}
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}
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void InsetMathSpace::normalize(NormalStream & os) const
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{
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os << "[space " << int(space_) << "] ";
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}
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void InsetMathSpace::write(TeXMathStream & os) const
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{
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// All kinds work in text and math mode, so simply suspend
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// writing a possibly pending mode closing brace.
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MathEnsurer ensurer(os, false);
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if (space_info[space_].escape)
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os << '\\';
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os << space_info[space_].name.c_str();
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if (space_info[space_].custom)
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os << '{' << length_.asLatexString().c_str() << '}';
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else if (space_info[space_].escape && space_info[space_].name.length() > 1)
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os.pendingSpace(true);
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}
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InsetSpaceParams InsetMathSpace::params() const
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{
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InsetSpaceParams isp(true);
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LASSERT(space_info[space_].visible, return isp);
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isp.kind = space_info[space_].kind;
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isp.length = GlueLength(length_);
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return isp;
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}
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string InsetMathSpace::contextMenuName() const
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{
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return "context-mathspace";
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}
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bool InsetMathSpace::getStatus(Cursor & cur, FuncRequest const & cmd,
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FuncStatus & status) const
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{
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switch (cmd.action()) {
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// we handle these
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case LFUN_INSET_MODIFY:
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case LFUN_INSET_DIALOG_UPDATE:
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case LFUN_MOUSE_RELEASE:
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status.setEnabled(true);
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return true;
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default:
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bool retval = InsetMath::getStatus(cur, cmd, status);
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return retval;
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}
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}
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void InsetMathSpace::doDispatch(Cursor & cur, FuncRequest & cmd)
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{
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switch (cmd.action()) {
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case LFUN_INSET_MODIFY:
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if (cmd.getArg(0) == "mathspace") {
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MathData ar(buffer_);
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if (createInsetMath_fromDialogStr(cmd.argument(), ar)) {
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Buffer * buf = buffer_;
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cur.recordUndo();
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*this = *ar[0].nucleus()->asSpaceInset();
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buffer_ = buf;
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break;
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}
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}
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cur.undispatched();
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break;
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case LFUN_MOUSE_RELEASE:
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if (cmd.button() == mouse_button::button1 && !cur.selection()) {
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showInsetDialog(&cur.bv());
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break;
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}
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cur.undispatched();
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break;
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default:
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InsetMath::doDispatch(cur, cmd);
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break;
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}
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}
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bool InsetMathSpace::isNegative() const
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{
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if (space_info[space_].custom)
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return length_.value() < 0;
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return space_info[space_].negative;
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}
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} // namespace lyx
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