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e24bf64c68
* InsetBase and all derivates: - metrics(MetricsInfo & mi, Dimension & dim) now returns a bool (true if metrics changed). * MathData and all derivates: - metrics(MetricsInfo & mi, Dimension & dim): ditto. * RenderBase and all derivates: - metrics(MetricsInfo & mi, Dimension & dim): ditto. * lyxtext.h/text.C: - LyXText::metrics(MetricsInfo & mi, Dimension & dim): ditto. - LyXText::redoParagraph(): take into account potential change in inset metrics. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16091 a592a061-630c-0410-9148-cb99ea01b6c8
628 lines
14 KiB
C
628 lines
14 KiB
C
/**
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* \file insetlatexaccent.C
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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 Lars Gullik Bjønnes
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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 "insetlatexaccent.h"
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#include "debug.h"
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#include "language.h"
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#include "LColor.h"
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#include "lyxlex.h"
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#include "lyxrc.h"
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#include "metricsinfo.h"
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#include "frontends/FontMetrics.h"
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#include "frontends/Painter.h"
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#include "support/lstrings.h"
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namespace lyx {
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using support::contains;
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using support::trim;
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using std::endl;
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using std::string;
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using std::auto_ptr;
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using std::ostream;
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/* LatexAccent. Proper handling of accented characters */
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/* This part is done by Ivan Schreter, schreter@ccsun.tuke.sk */
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/* Later modified by Lars G. Bjønnes, larsbj@lyx.org */
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InsetLatexAccent::InsetLatexAccent()
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: candisp(false)
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{}
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InsetLatexAccent::InsetLatexAccent(string const & str)
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: contents(str)
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{
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checkContents();
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}
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auto_ptr<InsetBase> InsetLatexAccent::doClone() const
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{
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return auto_ptr<InsetBase>(new InsetLatexAccent(contents));
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}
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void InsetLatexAccent::checkContents()
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// check, if we know the modifier and can display it ok on screen
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{
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candisp = false;
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if (contents.empty() || contents.length() < 2) {
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lyxerr[Debug::KEY] << "Cannot decode: " << contents << endl;
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return;
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}
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contents = trim(contents);
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if (contents[0] != '\\') { // demand that first char is a '\\'
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lyxerr[Debug::KEY] << "Cannot decode: " << contents << endl;
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return;
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}
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lyxerr[Debug::KEY] << "Decode: " << contents << endl;
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remdot = false;
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plusasc = false;
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plusdesc = false;
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switch (contents[1]) { // second char should be one of these
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case '\'': // acute
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modtype = ACUTE; // acute
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plusasc = true; // at the top of character
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break;
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case '`': // grave
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modtype = GRAVE; // grave
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plusasc = true; // at the top
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break;
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case '=': // macron
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modtype = MACRON; // macron
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plusasc = true; // at the top
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break;
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case '~': // tilde
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modtype = TILDE; // tilde
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plusasc = true; // at the top
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break;
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case 'b': // underbar
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modtype = UNDERBAR; // underbar
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plusdesc = true; // at the bottom
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break;
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case 'c': // cedilla
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modtype = CEDILLA; // cedilla
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plusdesc = true; // at the bottom
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break;
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case 'd': // underdot
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modtype = UNDERDOT; // underdot
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plusdesc = true; // at the bottom
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break;
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case 'r': // circle
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modtype = CIRCLE; // circle
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plusasc = true; // at the top
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break;
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case 't': // tie
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modtype = TIE; // tie
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plusasc = true; // at the top
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break;
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case 'u': // breve
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modtype = BREVE; // breve
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plusasc = true; // at the top
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break;
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case 'v': // caron
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modtype = CARON; // caron
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plusasc = true; // at the top
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break;
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case 'q': // special caron
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modtype = SPECIAL_CARON; // special caron
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plusasc = true; // at the top
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break;
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case 'H': // hungarian umlaut
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modtype = HUNGARIAN_UMLAUT; // hungarian umlaut
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plusasc = true; // at the top
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break;
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case '"': // umlaut
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modtype = UMLAUT; // umlaut
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plusasc = true; // at the top
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break;
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case '.': // dot
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modtype = DOT; // dot
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plusasc = true; // at the top
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break;
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case '^': // circumflex
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modtype = CIRCUMFLEX; // circumflex
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plusasc = true; // at the top
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break;
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case 'k': // ogonek
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modtype = OGONEK; // ogonek
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plusdesc = true;
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break;
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case 'i': // dot-less-i
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modtype = DOT_LESS_I; // dot-less-i
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plusasc = true; // at the top (not really needed)
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remdot = true;
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break;
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case 'j': // dot-less-j
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modtype = DOT_LESS_J; // dot-less-j
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plusasc = true; // at the top (not really needed)
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remdot = true;
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break;
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case 'l': // lslash
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modtype = lSLASH;
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plusasc = true; // at the top (not really needed)
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break;
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case 'L': // lslash
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modtype = LSLASH;
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plusasc = true; // at the top (not really needed)
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break;
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default:
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lyxerr[Debug::KEY] << "Default" << endl;
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// unknown accent (or something else)
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return;
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}
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// we demand that third char is a '{' (Lgb)
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if (contents[2] != '{') return;
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// special clause for \i{}, \j{} \l{} and \L{}
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if ((modtype == DOT_LESS_I || modtype == DOT_LESS_J
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|| modtype == lSLASH || modtype == LSLASH)
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&& contents[3] == '}') {
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switch (modtype) {
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case DOT_LESS_I: ic = 'i'; break;
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case DOT_LESS_J: ic = 'j'; break;
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case lSLASH: ic = 'l'; break;
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case LSLASH: ic = 'L'; break;
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default:
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// if this happens something is really wrong
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lyxerr << "InsetLaTexAccent: weird error." << endl;
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break;
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}
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//ic = (modtype == DOT_LESS_J ? 'j' : 'i');
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lyxerr[Debug::KEY] << "Contents: [" << contents << ']'
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<< ", ic: " << ic
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<< ", top: " << plusasc
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<< ", bot: " << plusdesc
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<< ", dot: " << remdot
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<< ", mod: " << modtype << endl;
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// Special case for space
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} else if (contents[3] == '}') {
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ic = ' ';
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} else {
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int i = 3;
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// now get the char
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ic = contents[3]; // i will always be 3 here
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// ic should now be a alfa-char or '\\'
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if (ic == '\\') {
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ic = contents[++i]; // will only allow \<foo>{\i} and \<foo>{\j}
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if (ic == 'i' || ic == 'j')
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remdot = true;
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else
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return;
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} else if ((ic == 'i'|| ic == 'j') && contents[4] == '}') {
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// Do a rewrite: \<foo>{i} --> \<foo>{\i}
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string temp = contents;
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temp.erase(3, string::npos);
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temp += '\\';
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temp += char(ic);
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for (string::size_type j = 4;
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j < contents.length(); ++j)
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temp+= contents[j];
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contents= temp;
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++i;
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remdot = true;
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}
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// demand a '}' at the end
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if (contents[++i] != '}' && contents[++i]) return;
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// fine, the char is properly decoded now (hopefully)
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lyxerr[Debug::KEY] << "Contents: [" << contents << ']'
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<< ", ic: " << ic
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<< ", top: " << plusasc
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<< ", bot: " << plusdesc
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<< ", dot: " << remdot
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<< ", mod: " << modtype << endl;
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}
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candisp = true;
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}
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bool InsetLatexAccent::metrics(MetricsInfo & mi, Dimension & dim) const
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{
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LyXFont & font = mi.base.font;
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frontend::FontMetrics const & fm = theFontMetrics(font);
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// This function is a bit too simplistic and is just a
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// "try to make a fit for all accents" approach, to
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// make it better we need to know what kind of accent is
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// used and add to max based on that.
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if (candisp) {
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if (ic == ' ')
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dim.asc = fm.ascent('a');
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else
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dim.asc = fm.ascent(ic);
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if (plusasc)
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dim.asc += (fm.maxAscent() + 3) / 3;
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if (ic == ' ')
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dim.des = fm.descent('a');
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else
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dim.des = fm.descent(ic);
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if (plusdesc)
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dim.des += 3;
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dim.wid = fm.width(ic);
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} else {
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dim.asc = fm.maxAscent() + 4;
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dim.des = fm.maxDescent() + 4;
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docstring dcon(contents.begin(), contents.end());
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dim.wid = fm.width(dcon) + 4;
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}
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bool const changed = dim_ != dim;
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dim_ = dim;
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return changed;
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}
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bool InsetLatexAccent::displayISO8859_9(PainterInfo & pi, int x, int y) const
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{
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unsigned char tmpic = ic;
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switch (modtype) {
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case CEDILLA: {
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if (ic == 'c') tmpic = '\xe7';
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if (ic == 'C') tmpic = '\xc7';
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if (ic == 's') tmpic = '\xfe';
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if (ic == 'S') tmpic = '\xde';
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break;
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}
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case BREVE: {
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if (ic == 'g') tmpic = '\xf0';
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if (ic == 'G') tmpic = '\xd0';
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break;
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}
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case UMLAUT: {
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if (ic == 'o') tmpic = '\xf6';
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if (ic == 'O') tmpic = '\xd6';
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if (ic == 'u') tmpic = '\xfc';
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if (ic == 'U') tmpic = '\xdc';
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break;
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}
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case DOT:
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if (ic == 'I') tmpic = '\xdd';
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break;
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case DOT_LESS_I:
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tmpic = '\xfd';
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break;
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default:
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return false;
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}
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if (tmpic == ic)
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return false;
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pi.pain.text(x, y, char(tmpic), pi.base.font);
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return true;
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}
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void InsetLatexAccent::drawAccent(PainterInfo const & pi, int x, int y,
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char_type accent) const
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{
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LyXFont const & font = pi.base.font;
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frontend::FontMetrics const & fm = theFontMetrics(font);
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x -= fm.center(accent);
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y -= fm.ascent(ic);
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y -= fm.descent(accent);
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y -= fm.height(accent) / 2;
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pi.pain.text(x, y, accent, font);
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}
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void InsetLatexAccent::draw(PainterInfo & pi, int x, int baseline) const
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{
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if (lyxrc.font_norm_type == LyXRC::ISO_8859_9)
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if (displayISO8859_9(pi, x, baseline))
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return;
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// All the manually drawn accents in this function could use an
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// overhaul. Different ways of drawing (what metrics to use)
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// should also be considered.
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LyXFont font = pi.base.font;
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if (lyxrc.font_norm_type == LyXRC::ISO_10646_1)
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font.setLanguage(english_language);
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frontend::FontMetrics const & fm = theFontMetrics(font);
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if (candisp) {
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int x2 = int(x + (fm.rbearing(ic) - fm.lbearing(ic)) / 2);
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int hg;
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int y;
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if (plusasc) {
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// mark at the top
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hg = fm.maxDescent();
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y = baseline - dim_.asc;
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if (font.shape() == LyXFont::ITALIC_SHAPE)
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x2 += int(0.8 * hg); // italic
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} else {
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// at the bottom
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hg = dim_.des;
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y = baseline;
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}
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double hg35 = hg * 0.6;
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// display with proper accent mark
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// first the letter
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pi.pain.text(x, baseline, ic, font);
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if (remdot) {
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int tmpvar = baseline - fm.ascent('i');
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int tmpx = 0;
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if (font.shape() == LyXFont::ITALIC_SHAPE)
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tmpx += int(0.8 * hg); // italic
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lyxerr[Debug::KEY] << "Removing dot." << endl;
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// remove the dot first
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pi.pain.fillRectangle(x + tmpx, tmpvar, dim_.wid,
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fm.ascent('i') -
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fm.ascent('x') - 1,
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backgroundColor());
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// the five lines below is a simple hack to
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// make the display of accent 'i' and 'j'
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// better. It makes the accent be written
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// closer to the top of the dot-less 'i' or 'j'.
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char tmpic = ic; // store the ic when we
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ic = 'x'; // calculates the ascent of
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#ifdef WITH_WARNINGS
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#warning metrics?
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#endif
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int asc = ascent(); // the dot-less version (here: 'x')
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ic = tmpic; // set the orig ic back
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y = baseline - asc; // update to new y coord.
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}
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// now the rest - draw within (x, y, x + wid, y + hg)
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switch (modtype) {
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case ACUTE:
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//drawAccent(pi, x2, baseline, '\xB4');
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drawAccent(pi, x2, baseline, 0xB4);
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break;
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case GRAVE:
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//drawAccent(pi, x2, baseline, '\x60');
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drawAccent(pi, x2, baseline, 0x60);
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break;
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case MACRON:
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//drawAccent(pi, x2, baseline, '\xAF');
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drawAccent(pi, x2, baseline, 0xAF);
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break;
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case TILDE:
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drawAccent(pi, x2, baseline, '~');
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break;
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case UNDERBAR: {
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char_type const underbar = 0x5F; //('\x5F');
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pi.pain.text(x2 - fm.center(underbar),
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baseline, underbar, font);
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break;
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}
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case CEDILLA: {
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char_type const cedilla = 0xB8; //('\xB8');
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pi.pain.text(x2 - fm.center(cedilla),
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baseline, cedilla, font);
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break;
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}
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case UNDERDOT:
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pi.pain.text(x2 - fm.center('.'),
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int(baseline + 1.5 * fm.height('.')),
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'.', font);
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break;
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case DOT:
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drawAccent(pi, x2, baseline, '.');
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break;
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case CIRCLE:
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//drawAccent(pi, x2, baseline, '\xB0');
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drawAccent(pi, x2, baseline, 0xB0);
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break;
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case TIE:
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pi.pain.arc(int(x2 + hg35), y + hg / 2, 2 * hg, hg, 0, 360 * 32,
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LColor::foreground);
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break;
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case BREVE:
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pi.pain.arc(int(x2 - hg / 2), y, hg, hg, 0, -360*32,
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LColor::foreground);
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break;
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case CARON: {
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int xp[3], yp[3];
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xp[0] = int(x2 - hg35); yp[0] = int(y + hg35);
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xp[1] = int(x2); yp[1] = int(y + hg);
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xp[2] = int(x2 + hg35); yp[2] = int(y + hg35);
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pi.pain.lines(xp, yp, 3, LColor::foreground);
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break;
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}
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case SPECIAL_CARON: {
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switch (ic) {
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case 'L': dim_.wid = int(4.0 * dim_.wid / 5.0); break;
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case 't': y -= int(hg35 / 2.0); break;
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}
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int xp[3], yp[3];
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xp[0] = int(x + dim_.wid);
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yp[0] = int(y + hg35 + hg);
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xp[1] = int(x + dim_.wid + (hg35 / 2.0));
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yp[1] = int(y + hg + (hg35 / 2.0));
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xp[2] = int(x + dim_.wid + (hg35 / 2.0));
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yp[2] = y + int(hg);
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pi.pain.lines(xp, yp, 3, LColor::foreground);
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break;
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}
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case HUNGARIAN_UMLAUT:
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drawAccent(pi, x2 - fm.center('´'), baseline, '´');
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drawAccent(pi, x2 + fm.center('´'), baseline, '´');
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break;
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case UMLAUT:
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drawAccent(pi, x2, baseline, '"');
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break;
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case CIRCUMFLEX:
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drawAccent(pi, x2, baseline, '\x5E');
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break;
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case OGONEK: {
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// this does probably not look like an ogonek, so
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// it should certainly be refined
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int xp[4], yp[4];
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xp[0] = x2;
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yp[0] = y;
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xp[1] = x2;
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yp[1] = y + int(hg35);
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xp[2] = int(x2 - hg35);
|
||
yp[2] = y + hg / 2;
|
||
|
||
xp[3] = x2 + hg / 4;
|
||
yp[3] = y + int(hg);
|
||
|
||
pi.pain.lines(xp, yp, 4, LColor::foreground);
|
||
break;
|
||
}
|
||
|
||
case lSLASH:
|
||
case LSLASH: {
|
||
int xp[2], yp[2];
|
||
|
||
xp[0] = x;
|
||
yp[0] = y + int(3 * hg);
|
||
|
||
xp[1] = int(x + dim_.wid * 0.75);
|
||
yp[1] = y + int(hg);
|
||
|
||
pi.pain.lines(xp, yp, 2, LColor::foreground);
|
||
break;
|
||
}
|
||
|
||
case DOT_LESS_I: // dotless-i
|
||
case DOT_LESS_J: // dotless-j
|
||
// nothing to do for these
|
||
break;
|
||
}
|
||
|
||
} else {
|
||
pi.pain.fillRectangle(x + 1,
|
||
baseline - dim_.asc + 1, dim_.wid - 2,
|
||
dim_.asc + dim_.des - 2,
|
||
backgroundColor());
|
||
pi.pain.rectangle(x + 1, baseline - dim_.asc + 1,
|
||
dim_.wid - 2, dim_.asc + dim_.des - 2,
|
||
LColor::foreground);
|
||
docstring dcon(contents.begin(), contents.end());
|
||
pi.pain.text(x + 2, baseline, dcon, font);
|
||
}
|
||
}
|
||
|
||
|
||
void InsetLatexAccent::write(Buffer const &, ostream & os) const
|
||
{
|
||
os << "\\i " << contents << "\n";
|
||
}
|
||
|
||
|
||
void InsetLatexAccent::read(Buffer const &, LyXLex & lex)
|
||
{
|
||
lex.eatLine();
|
||
contents = lex.getString();
|
||
checkContents();
|
||
}
|
||
|
||
|
||
int InsetLatexAccent::latex(Buffer const &, odocstream & os,
|
||
OutputParams const &) const
|
||
{
|
||
os << from_ascii(contents);
|
||
return 0;
|
||
}
|
||
|
||
|
||
int InsetLatexAccent::plaintext(Buffer const &, odocstream & os,
|
||
OutputParams const &) const
|
||
{
|
||
os << from_ascii(contents);
|
||
return 0;
|
||
}
|
||
|
||
|
||
int InsetLatexAccent::docbook(Buffer const &, odocstream & os,
|
||
OutputParams const &) const
|
||
{
|
||
// FIXME UNICODE
|
||
os << from_ascii(contents);
|
||
return 0;
|
||
}
|
||
|
||
|
||
int InsetLatexAccent::textString(Buffer const & buf, odocstream & os,
|
||
OutputParams const & op) const
|
||
{
|
||
return plaintext(buf, os, op);
|
||
}
|
||
|
||
|
||
bool InsetLatexAccent::directWrite() const
|
||
{
|
||
return true;
|
||
}
|
||
|
||
|
||
InsetBase::Code InsetLatexAccent::lyxCode() const
|
||
{
|
||
return InsetBase::ACCENT_CODE;
|
||
}
|
||
|
||
|
||
ostream & operator<<(ostream & o, InsetLatexAccent::ACCENT_TYPES at)
|
||
{
|
||
return o << int(at);
|
||
}
|
||
|
||
|
||
} // namespace lyx
|