lyx_mirror/src/frontends/qt4/GuiDelimiter.cpp
Jürgen Spitzmüller 629e2073fc please Lars.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@28799 a592a061-630c-0410-9148-cb99ea01b6c8
2009-03-15 15:53:17 +00:00

351 lines
9.3 KiB
C++

/**
* \file GuiDelimiter.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "GuiDelimiter.h"
#include "GuiApplication.h"
#include "GuiFontLoader.h"
#include "GuiView.h"
#include "qt_helpers.h"
#include "FontEnums.h"
#include "FontInfo.h"
#include "FuncRequest.h"
#include "support/gettext.h"
#include "support/docstring.h"
#include <QPixmap>
#include <QCheckBox>
#include <QListWidgetItem>
#include <map>
#include <string>
using namespace std;
namespace lyx {
namespace frontend {
namespace {
static char const * latex_delimiters[] = {
"(", ")", "{", "}", "[", "]",
"lceil", "rceil", "lfloor", "rfloor", "langle", "rangle",
"uparrow", "updownarrow", "Uparrow", "Updownarrow", "downarrow", "Downarrow",
"|", "Vert", "/", "backslash", ""
};
static int const nr_latex_delimiters =
sizeof(latex_delimiters) / sizeof(char const *);
static QString const bigleft[] = {"", "bigl", "Bigl", "biggl", "Biggl"};
static QString const bigright[] = {"", "bigr", "Bigr", "biggr", "Biggr"};
static char const * const biggui[] = {
N_("big[[delimiter size]]"),
N_("Big[[delimiter size]]"),
N_("bigg[[delimiter size]]"),
N_("Bigg[[delimiter size]]"),
""
};
// FIXME: It might be better to fix the big delim LFUN to not require
// additional '\' prefix.
static QString fix_name(QString const & str, bool big)
{
if (str.isEmpty())
return ".";
if (!big || str == "(" || str == ")" || str == "[" || str == "]"
|| str == "|" || str == "/")
return str;
return "\\" + str;
}
struct MathSymbol {
MathSymbol(char_type uc = '?', unsigned char fc = 0,
FontFamily ff = SYMBOL_FAMILY)
: unicode(uc), fontcode(fc), fontfamily(ff)
{}
char_type unicode;
unsigned char fontcode;
FontFamily fontfamily;
};
/// TeX-name / Math-symbol map.
static map<std::string, MathSymbol> math_symbols_;
/// Math-symbol / TeX-name map.
/// This one is for fast search, it contains the same data as
/// \c math_symbols_.
static map<char_type, string> tex_names_;
void initMathSymbols()
{
// FIXME: Ideally, those unicode codepoints would be defined
// in "lib/symbols". Unfortunately, some of those are already
// defined with non-unicode ids for use within mathed.
// FIXME 2: We should fill-in this map with the parsed "symbols"
// file done in MathFactory.cpp.
math_symbols_["("] = MathSymbol('(');
math_symbols_[")"] = MathSymbol(')');
math_symbols_["{"] = MathSymbol('{');
math_symbols_["}"] = MathSymbol('}');
math_symbols_["["] = MathSymbol('[');
math_symbols_["]"] = MathSymbol(']');
math_symbols_["|"] = MathSymbol('|');
math_symbols_["/"] = MathSymbol('/', 54, CMSY_FAMILY);
math_symbols_["backslash"] = MathSymbol('\\', 110, CMSY_FAMILY);
math_symbols_["lceil"] = MathSymbol(0x2308, 100, CMSY_FAMILY);
math_symbols_["rceil"] = MathSymbol(0x2309, 101, CMSY_FAMILY);
math_symbols_["lfloor"] = MathSymbol(0x230A, 98, CMSY_FAMILY);
math_symbols_["rfloor"] = MathSymbol(0x230B, 99, CMSY_FAMILY);
math_symbols_["langle"] = MathSymbol(0x2329, 104, CMSY_FAMILY);
math_symbols_["rangle"] = MathSymbol(0x232A, 105, CMSY_FAMILY);
math_symbols_["uparrow"] = MathSymbol(0x2191, 34, CMSY_FAMILY);
math_symbols_["Uparrow"] = MathSymbol(0x21D1, 42, CMSY_FAMILY);
math_symbols_["updownarrow"] = MathSymbol(0x2195, 108, CMSY_FAMILY);
math_symbols_["Updownarrow"] = MathSymbol(0x21D5, 109, CMSY_FAMILY);
math_symbols_["downarrow"] = MathSymbol(0x2193, 35, CMSY_FAMILY);
math_symbols_["Downarrow"] = MathSymbol(0x21D3, 43, CMSY_FAMILY);
math_symbols_["downdownarrows"] = MathSymbol(0x21CA, 184, MSA_FAMILY);
math_symbols_["downharpoonleft"] = MathSymbol(0x21C3, 188, MSA_FAMILY);
math_symbols_["downharpoonright"] = MathSymbol(0x21C2, 186, MSA_FAMILY);
math_symbols_["vert"] = MathSymbol(0x007C, 106, CMSY_FAMILY);
math_symbols_["Vert"] = MathSymbol(0x2016, 107, CMSY_FAMILY);
map<string, MathSymbol>::const_iterator it = math_symbols_.begin();
map<string, MathSymbol>::const_iterator end = math_symbols_.end();
for (; it != end; ++it)
tex_names_[it->second.unicode] = it->first;
}
/// \return the math unicode symbol associated to a TeX name.
MathSymbol const & mathSymbol(string tex_name)
{
map<string, MathSymbol>::const_iterator it =
math_symbols_.find(tex_name);
static MathSymbol unknown_symbol;
if (it == math_symbols_.end())
return unknown_symbol;
return it->second;
}
/// \return the TeX name associated to a math unicode symbol.
string const & texName(char_type math_symbol)
{
map<char_type, string>::const_iterator it =
tex_names_.find(math_symbol);
static string empty_string;
if (it == tex_names_.end())
return empty_string;
return it->second;
}
} // anon namespace
GuiDelimiter::GuiDelimiter(GuiView & lv)
: GuiDialog(lv, "mathdelimiter", qt_("Math Delimiter"))
{
setupUi(this);
connect(closePB, SIGNAL(clicked()), this, SLOT(accept()));
setFocusProxy(leftLW);
leftLW->setViewMode(QListView::IconMode);
rightLW->setViewMode(QListView::IconMode);
initMathSymbols();
typedef map<char_type, QListWidgetItem *> ListItems;
ListItems list_items;
// The last element is the empty one.
int const end = nr_latex_delimiters - 1;
for (int i = 0; i < end; ++i) {
string const delim = latex_delimiters[i];
MathSymbol const & ms = mathSymbol(delim);
QString symbol(ms.fontcode?
QChar(ms.fontcode) : toqstr(docstring(1, ms.unicode)));
QListWidgetItem * lwi = new QListWidgetItem(symbol);
lwi->setToolTip(toqstr(delim));
FontInfo lyxfont;
lyxfont.setFamily(ms.fontfamily);
lwi->setFont(frontend::getFont(lyxfont));
list_items[ms.unicode] = lwi;
leftLW->addItem(lwi);
}
for (int i = 0; i != leftLW->count(); ++i) {
MathSymbol const & ms = mathSymbol(
fromqstr(leftLW->item(i)->toolTip()));
rightLW->addItem(list_items[doMatch(ms.unicode)]->clone());
}
// The last element is the empty one.
leftLW->addItem(qt_("(None)"));
rightLW->addItem(qt_("(None)"));
sizeCO->addItem(qt_("Variable"));
for (int i = 0; *biggui[i]; ++i)
sizeCO->addItem(qt_(biggui[i]));
on_leftLW_currentRowChanged(0);
bc().setPolicy(ButtonPolicy::IgnorantPolicy);
}
char_type GuiDelimiter::doMatch(char_type const symbol)
{
string const & str = texName(symbol);
string match;
if (str == "(") match = ")";
else if (str == ")") match = "(";
else if (str == "[") match = "]";
else if (str == "]") match = "[";
else if (str == "{") match = "}";
else if (str == "}") match = "{";
else if (str == "l") match = "r";
else if (str == "rceil") match = "lceil";
else if (str == "lceil") match = "rceil";
else if (str == "rfloor") match = "lfloor";
else if (str == "lfloor") match = "rfloor";
else if (str == "rangle") match = "langle";
else if (str == "langle") match = "rangle";
else if (str == "backslash") match = "/";
else if (str == "/") match = "backslash";
else return symbol;
return mathSymbol(match).unicode;
}
void GuiDelimiter::updateTeXCode(int size)
{
bool const bigsize = size != 0;
QString left_str = fix_name(leftLW->currentItem()->toolTip(), bigsize);
QString right_str = fix_name(rightLW->currentItem()->toolTip(), bigsize);
if (!bigsize)
tex_code_ = left_str + ' ' + right_str;
else {
tex_code_ = bigleft[size] + ' '
+ left_str + ' '
+ bigright[size] + ' '
+ right_str;
}
// Generate TeX-code for GUI display.
// FIXME: Instead of reconstructing the TeX code it would be nice to
// FIXME: retrieve the LateX code directly from mathed.
// In all cases, we want the '\' prefix if needed, so we pass 'true'
// to fix_name.
left_str = fix_name(leftLW->currentItem()->toolTip(), true);
right_str = fix_name(rightLW->currentItem()->toolTip(), true);
QString code_str;
if (!bigsize)
code_str = "\\left" + left_str + " \\right" + right_str;
else {
// There should be nothing in the TeX-code when the delimiter is "None".
if (left_str != ".")
code_str = "\\" + bigleft[size] + left_str + ' ';
if (right_str != ".")
code_str += "\\" + bigright[size] + right_str;
}
texCodeL->setText(qt_("TeX Code: ") + code_str);
}
void GuiDelimiter::on_insertPB_clicked()
{
if (sizeCO->currentIndex() == 0)
dispatch(FuncRequest(LFUN_MATH_DELIM, fromqstr(tex_code_)));
else {
QString command = '"' + tex_code_ + '"';
command.replace(' ', "\" \"");
dispatch(FuncRequest(LFUN_MATH_BIGDELIM, fromqstr(command)));
}
}
void GuiDelimiter::on_sizeCO_activated(int index)
{
updateTeXCode(index);
}
void GuiDelimiter::on_leftLW_itemActivated(QListWidgetItem *)
{
// do not auto-apply if !matchCB->isChecked()
if (!matchCB->isChecked())
return;
on_insertPB_clicked();
accept();
}
void GuiDelimiter::on_rightLW_itemActivated(QListWidgetItem *)
{
// do not auto-apply if !matchCB->isChecked()
if (!matchCB->isChecked())
return;
on_insertPB_clicked();
accept();
}
void GuiDelimiter::on_leftLW_currentRowChanged(int item)
{
if (matchCB->isChecked())
rightLW->setCurrentRow(item);
updateTeXCode(sizeCO->currentIndex());
}
void GuiDelimiter::on_rightLW_currentRowChanged(int item)
{
if (matchCB->isChecked())
leftLW->setCurrentRow(item);
updateTeXCode(sizeCO->currentIndex());
}
void GuiDelimiter::on_matchCB_stateChanged(int state)
{
if (state == Qt::Checked)
on_leftLW_currentRowChanged(leftLW->currentRow());
updateTeXCode(sizeCO->currentIndex());
}
Dialog * createGuiDelimiter(GuiView & lv) { return new GuiDelimiter(lv); }
} // namespace frontend
} // namespace lyx
#include "moc_GuiDelimiter.cpp"