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3b7a5f26c4
(Documentation follows later.) git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_6_X@28064 a592a061-630c-0410-9148-cb99ea01b6c8
294 lines
6.7 KiB
C++
294 lines
6.7 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 "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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};
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SpaceInfo space_info[] = {
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// name width kind negative visible custom
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{"!", 6, InsetSpaceParams::NEGTHIN, true, true, false},
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{"negthinspace", 6, InsetSpaceParams::NEGTHIN, true, true, false},
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{"negmedspace", 8, InsetSpaceParams::NEGMEDIUM, true, true, false},
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{"negthickspace", 10, InsetSpaceParams::NEGTHICK, true, true, false},
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{",", 6, InsetSpaceParams::THIN, false, true, false},
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{"thinspace", 6, InsetSpaceParams::THIN, false, true, false},
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{":", 8, InsetSpaceParams::MEDIUM, false, true, false},
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{"medspace", 8, InsetSpaceParams::MEDIUM, false, true, false},
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{";", 10, InsetSpaceParams::THICK, false, true, false},
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{"thickspace", 10, InsetSpaceParams::THICK, false, true, false},
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{"enskip", 10, InsetSpaceParams::ENSKIP, false, true, false},
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{"quad", 20, InsetSpaceParams::QUAD, false, true, false},
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{"qquad", 40, InsetSpaceParams::QQUAD, false, true, false},
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{"lyxnegspace", -2, InsetSpaceParams::NEGTHIN, true, false, false},
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{"lyxposspace", 2, InsetSpaceParams::THIN, false, false, false},
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{"hspace", 0, InsetSpaceParams::CUSTOM, false, true, true},
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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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} // anon namespace
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InsetMathSpace::InsetMathSpace()
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: space_(defaultSpace)
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{
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}
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InsetMathSpace::InsetMathSpace(string const & name, string const & length)
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: 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(Length const & length)
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: space_(defaultSpace), length_(length)
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{
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for (int i = 0; i < nSpace; ++i)
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if (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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InsetMathSpace::~InsetMathSpace()
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{
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hideDialogs("mathspace", this);
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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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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(length_.inPixels(
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mi.base.textwidth,
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mathed_char_width(mi.base.font, 'M')));
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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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// 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::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(WriteStream & os) const
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{
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// no MathEnsurer - all kinds work in text and math mode
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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
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os.pendingSpace(true);
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}
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string const InsetMathSpace::createDialogStr() const
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{
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LASSERT(space_info[space_].visible, /**/);
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InsetSpaceParams isp(true);
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isp.kind = space_info[space_].kind;
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isp.length = length_;
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return InsetSpace::params2string(isp);
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}
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docstring InsetMathSpace::contextMenu(BufferView const &, int, int) const
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{
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return from_ascii("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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case LFUN_MOUSE_PRESS:
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case LFUN_MOUSE_MOTION:
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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;
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if (createInsetMath_fromDialogStr(cmd.argument(), ar)) {
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*this = *ar[0].nucleus()->asSpaceInset();
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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_INSET_DIALOG_UPDATE:
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cur.bv().updateDialog("mathspace", createDialogStr());
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break;
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case LFUN_MOUSE_RELEASE:
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if (cmd.button() == mouse_button::button1) {
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string const data = createDialogStr();
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cur.bv().showDialog("mathspace", data, this);
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break;
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}
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cur.undispatched();
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break;
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case LFUN_MOUSE_PRESS:
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case LFUN_MOUSE_MOTION:
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// eat other mouse commands
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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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