mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-12-19 12:20:27 +00:00
9a36ffd1e3
Fixes: #10738
669 lines
16 KiB
C++
669 lines
16 KiB
C++
/**
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* \file qt_helpers.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 Dekel Tsur
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* \author Jürgen Spitzmüller
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* \author Richard Heck
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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 "qt_helpers.h"
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#include "FileDialog.h"
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#include "LengthCombo.h"
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#include "frontends/alert.h"
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#include "BufferParams.h"
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#include "FloatList.h"
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#include "Language.h"
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#include "Length.h"
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#include "TextClass.h"
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#include "support/convert.h"
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#include "support/debug.h"
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#include "support/gettext.h"
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#include "support/lstrings.h"
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#include "support/lyxalgo.h"
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#include "support/os.h"
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#include "support/Package.h"
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#include "support/PathChanger.h"
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#include "support/Systemcall.h"
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#include <QApplication>
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#include <QCheckBox>
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#include <QComboBox>
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#include <QLineEdit>
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#include <QLocale>
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#include <QPalette>
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#include <QSet>
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#include <QTextLayout>
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#include <QTextDocument>
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#include <QToolTip>
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#include <algorithm>
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#include <fstream>
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#include <locale>
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// for FileFilter.
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// FIXME: Remove
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#include "support/regex.h"
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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FileName libFileSearch(QString const & dir, QString const & name,
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QString const & ext, search_mode mode)
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{
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return support::libFileSearch(fromqstr(dir), fromqstr(name), fromqstr(ext), mode);
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}
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FileName imageLibFileSearch(QString & dir, QString const & name,
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QString const & ext, search_mode mode)
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{
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string tmp = fromqstr(dir);
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FileName fn = support::imageLibFileSearch(tmp, fromqstr(name), fromqstr(ext), mode);
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dir = toqstr(tmp);
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return fn;
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}
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namespace {
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double locstringToDouble(QString const & str)
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{
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QLocale loc;
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bool ok;
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double res = loc.toDouble(str, &ok);
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if (!ok) {
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// Fall back to C
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QLocale c(QLocale::C);
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res = c.toDouble(str);
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}
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return res;
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}
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} // namespace
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namespace frontend {
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string widgetsToLength(QLineEdit const * input, LengthCombo const * combo)
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{
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QString const length = input->text();
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if (length.isEmpty())
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return string();
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// Don't return unit-from-choice if the input(field) contains a unit
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if (isValidGlueLength(fromqstr(length)))
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return fromqstr(length);
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Length::UNIT const unit = combo->currentLengthItem();
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return Length(locstringToDouble(length.trimmed()), unit).asString();
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}
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Length widgetsToLength(QLineEdit const * input, QComboBox const * combo)
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{
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QString const length = input->text();
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if (length.isEmpty())
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return Length();
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// don't return unit-from-choice if the input(field) contains a unit
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if (isValidGlueLength(fromqstr(length)))
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return Length(fromqstr(length));
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Length::UNIT unit = Length::UNIT_NONE;
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QString const item = combo->currentText();
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for (int i = 0; i < num_units; i++) {
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if (qt_(lyx::unit_name_gui[i]) == item) {
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unit = unitFromString(unit_name[i]);
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break;
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}
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}
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return Length(locstringToDouble(length.trimmed()), unit);
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}
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void lengthToWidgets(QLineEdit * input, LengthCombo * combo,
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Length const & len, Length::UNIT /*defaultUnit*/)
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{
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if (len.empty()) {
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// no length (UNIT_NONE)
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combo->setCurrentItem(Length::defaultUnit());
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input->setText("");
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} else {
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combo->setCurrentItem(len.unit());
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QLocale loc;
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loc.setNumberOptions(QLocale::OmitGroupSeparator);
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input->setText(formatLocFPNumber(Length(len).value()));
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}
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}
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void lengthToWidgets(QLineEdit * input, LengthCombo * combo,
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string const & len, Length::UNIT defaultUnit)
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{
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if (len.empty()) {
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// no length (UNIT_NONE)
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combo->setCurrentItem(defaultUnit);
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input->setText("");
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} else if (!isValidLength(len) && !isStrDbl(len)) {
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// use input field only for gluelengths
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combo->setCurrentItem(defaultUnit);
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input->setText(toqstr(len));
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} else {
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lengthToWidgets(input, combo, Length(len), defaultUnit);
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}
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}
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void lengthToWidgets(QLineEdit * input, LengthCombo * combo,
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docstring const & len, Length::UNIT defaultUnit)
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{
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lengthToWidgets(input, combo, to_utf8(len), defaultUnit);
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}
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double widgetToDouble(QLineEdit const * input)
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{
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QString const text = input->text();
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if (text.isEmpty())
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return 0.0;
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return locstringToDouble(text.trimmed());
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}
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string widgetToDoubleStr(QLineEdit const * input)
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{
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return convert<string>(widgetToDouble(input));
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}
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void doubleToWidget(QLineEdit * input, double const & value, char f, int prec)
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{
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QLocale loc;
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loc.setNumberOptions(QLocale::OmitGroupSeparator);
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input->setText(loc.toString(value, f, prec));
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}
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void doubleToWidget(QLineEdit * input, string const & value, char f, int prec)
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{
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doubleToWidget(input, convert<double>(value), f, prec);
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}
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QString formatLocFPNumber(double d)
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{
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QString result = toqstr(formatFPNumber(d));
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QLocale loc;
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result.replace('.', loc.decimalPoint());
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return result;
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}
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bool SortLocaleAware(QString const & lhs, QString const & rhs)
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{
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return QString::localeAwareCompare(lhs, rhs) < 0;
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}
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bool ColorSorter(ColorCode lhs, ColorCode rhs)
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{
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return compare_no_case(lcolor.getGUIName(lhs), lcolor.getGUIName(rhs)) < 0;
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}
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void setValid(QWidget * widget, bool valid)
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{
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if (valid) {
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widget->setPalette(QPalette());
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} else {
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QPalette pal = widget->palette();
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pal.setColor(QPalette::Active, QPalette::Foreground, QColor(255, 0, 0));
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widget->setPalette(pal);
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}
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}
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void focusAndHighlight(QAbstractItemView * w)
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{
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w->setFocus();
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w->setCurrentIndex(w->currentIndex());
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w->scrollTo(w->currentIndex());
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}
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void setMessageColour(list<QWidget *> highlighted, list<QWidget *> plain)
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{
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QPalette pal = QApplication::palette();
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QPalette newpal(pal.color(QPalette::Active, QPalette::HighlightedText),
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pal.color(QPalette::Active, QPalette::Highlight));
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for (QWidget * w : highlighted)
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w->setPalette(newpal);
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for (QWidget * w : plain)
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w->setPalette(pal);
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}
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/// wrapper to hide the change of method name to setSectionResizeMode
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void setSectionResizeMode(QHeaderView * view,
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int logicalIndex, QHeaderView::ResizeMode mode) {
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#if (QT_VERSION >= 0x050000)
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view->setSectionResizeMode(logicalIndex, mode);
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#else
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view->setResizeMode(logicalIndex, mode);
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#endif
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}
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void setSectionResizeMode(QHeaderView * view, QHeaderView::ResizeMode mode) {
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#if (QT_VERSION >= 0x050000)
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view->setSectionResizeMode(mode);
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#else
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view->setResizeMode(mode);
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#endif
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}
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} // namespace frontend
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QString const qt_(char const * str, const char *)
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{
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return toqstr(_(str));
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}
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QString const qt_(string const & str)
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{
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return toqstr(_(str));
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}
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QString const qt_(QString const & qstr)
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{
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return toqstr(_(fromqstr(qstr)));
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}
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void rescanTexStyles(string const & arg)
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{
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// Run rescan in user lyx directory
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PathChanger p(package().user_support());
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FileName const prog = support::libFileSearch("scripts", "TeXFiles.py");
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Systemcall one;
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string const command = os::python() + ' ' +
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quoteName(prog.toFilesystemEncoding()) + ' ' +
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arg;
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int const status = one.startscript(Systemcall::Wait, command);
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if (status == 0)
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return;
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// FIXME UNICODE
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frontend::Alert::error(_("Could not update TeX information"),
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bformat(_("The script `%1$s' failed."), from_utf8(prog.absFileName())));
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}
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QStringList texFileList(QString const & filename)
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{
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QStringList list;
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FileName const file = libFileSearch(QString(), filename);
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if (file.empty())
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return list;
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// FIXME Unicode.
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vector<docstring> doclist =
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getVectorFromString(file.fileContents("UTF-8"), from_ascii("\n"));
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// Normalise paths like /foo//bar ==> /foo/bar
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QSet<QString> set;
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for (size_t i = 0; i != doclist.size(); ++i) {
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QString file = toqstr(doclist[i]);
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file.replace("\r", "");
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while (file.contains("//"))
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file.replace("//", "/");
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if (!file.isEmpty())
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set.insert(file);
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}
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// remove duplicates
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return QList<QString>::fromSet(set);
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}
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QString const externalLineEnding(docstring const & str)
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{
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#ifdef Q_OS_MAC
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// The MAC clipboard uses \r for lineendings, and we use \n
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return toqstr(subst(str, '\n', '\r'));
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#elif defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)
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// Windows clipboard uses \r\n for lineendings, and we use \n
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return toqstr(subst(str, from_ascii("\n"), from_ascii("\r\n")));
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#else
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return toqstr(str);
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#endif
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}
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docstring const internalLineEnding(QString const & str)
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{
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docstring const s = subst(qstring_to_ucs4(str),
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from_ascii("\r\n"), from_ascii("\n"));
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return subst(s, '\r', '\n');
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}
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QString internalPath(const QString & str)
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{
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return toqstr(os::internal_path(fromqstr(str)));
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}
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QString onlyFileName(const QString & str)
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{
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return toqstr(support::onlyFileName(fromqstr(str)));
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}
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QString onlyPath(const QString & str)
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{
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return toqstr(support::onlyPath(fromqstr(str)));
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}
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QString changeExtension(QString const & oldname, QString const & ext)
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{
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return toqstr(support::changeExtension(fromqstr(oldname), fromqstr(ext)));
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}
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/// Remove the extension from \p name
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QString removeExtension(QString const & name)
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{
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return toqstr(support::removeExtension(fromqstr(name)));
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}
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/** Add the extension \p ext to \p name.
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Use this instead of changeExtension if you know that \p name is without
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extension, because changeExtension would wrongly interpret \p name if it
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contains a dot.
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*/
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QString addExtension(QString const & name, QString const & ext)
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{
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return toqstr(support::addExtension(fromqstr(name), fromqstr(ext)));
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}
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/// Return the extension of the file (not including the .)
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QString getExtension(QString const & name)
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{
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return toqstr(support::getExtension(fromqstr(name)));
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}
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/** Convert relative path into absolute path based on a basepath.
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If relpath is absolute, just use that.
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If basepath doesn't exist use CWD.
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*/
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QString makeAbsPath(QString const & relpath, QString const & base)
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{
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return toqstr(support::makeAbsPath(fromqstr(relpath),
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fromqstr(base)).absFileName());
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}
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/////////////////////////////////////////////////////////////////////////
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//
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// FileFilterList
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//
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/////////////////////////////////////////////////////////////////////////
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/** Given a string such as
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* "<glob> <glob> ... *.{abc,def} <glob>",
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* convert the csh-style brace expresions:
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* "<glob> <glob> ... *.abc *.def <glob>".
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* Requires no system support, so should work equally on Unix, Mac, Win32.
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*/
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static string const convert_brace_glob(string const & glob)
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{
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// Matches " *.{abc,def,ghi}", storing "*." as group 1 and
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// "abc,def,ghi" as group 2, while allowing spaces in group 2.
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static lyx::regex const glob_re(" *([^ {]*)\\{([^}]+)\\}");
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// Matches "abc" and "abc,", storing "abc" as group 1,
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// while ignoring surrounding spaces.
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static lyx::regex const block_re(" *([^ ,}]+) *,? *");
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string pattern;
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string::const_iterator it = glob.begin();
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string::const_iterator const end = glob.end();
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while (true) {
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match_results<string::const_iterator> what;
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if (!regex_search(it, end, what, glob_re)) {
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// Ensure that no information is lost.
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pattern += string(it, end);
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break;
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}
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// Everything from the start of the input to
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// the start of the match.
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pattern += string(what[-1].first, what[-1].second);
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// Given " *.{abc,def}", head == "*." and tail == "abc,def".
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string const head = string(what[1].first, what[1].second);
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string const tail = string(what[2].first, what[2].second);
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// Split the ','-separated chunks of tail so that
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// $head{$chunk1,$chunk2} becomes "$head$chunk1 $head$chunk2".
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string const fmt = " " + head + "$1";
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pattern += regex_replace(tail, block_re, fmt);
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// Increment the iterator to the end of the match.
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it += distance(it, what[0].second);
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}
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return pattern;
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}
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struct Filter
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{
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/* \param description text describing the filters.
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* \param one or more wildcard patterns, separated by
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* whitespace.
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*/
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Filter(docstring const & description, std::string const & globs);
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docstring const & description() const { return desc_; }
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QString toString() const;
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docstring desc_;
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std::vector<std::string> globs_;
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};
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Filter::Filter(docstring const & description, string const & globs)
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: desc_(description)
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{
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// Given "<glob> <glob> ... *.{abc,def} <glob>", expand to
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// "<glob> <glob> ... *.abc *.def <glob>"
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string const expanded_globs = convert_brace_glob(globs);
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// Split into individual globs.
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globs_ = getVectorFromString(expanded_globs, " ");
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}
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QString Filter::toString() const
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{
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QString s;
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bool const has_description = !desc_.empty();
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if (has_description) {
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s += toqstr(desc_);
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s += " (";
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}
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s += toqstr(getStringFromVector(globs_, " "));
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if (has_description)
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s += ')';
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return s;
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}
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/** \c FileFilterList parses a Qt-style list of available file filters
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* to generate the corresponding vector.
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* For example "TeX documents (*.tex);;LyX Documents (*.lyx)"
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* will be parsed to fill a vector of size 2, whilst "*.{p[bgp]m} *.pdf"
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* will result in a vector of size 1 in which the description field is empty.
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*/
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struct FileFilterList
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{
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// FIXME UNICODE: globs_ should be unicode...
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/** \param qt_style_filter a list of available file filters.
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* Eg. "TeX documents (*.tex);;LyX Documents (*.lyx)".
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* The "All files (*)" filter is always added to the list.
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*/
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explicit FileFilterList(docstring const & qt_style_filter =
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docstring());
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typedef std::vector<Filter>::size_type size_type;
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bool empty() const { return filters_.empty(); }
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size_type size() const { return filters_.size(); }
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Filter & operator[](size_type i) { return filters_[i]; }
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Filter const & operator[](size_type i) const { return filters_[i]; }
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void parse_filter(std::string const & filter);
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std::vector<Filter> filters_;
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};
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FileFilterList::FileFilterList(docstring const & qt_style_filter)
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{
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// FIXME UNICODE
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string const filter = to_utf8(qt_style_filter)
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+ (qt_style_filter.empty() ? string() : ";;")
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+ to_utf8(_("All Files "))
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#if defined(_WIN32)
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+ ("(*.*)");
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#else
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+ ("(*)");
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#endif
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// Split data such as "TeX documents (*.tex);;LyX Documents (*.lyx)"
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// into individual filters.
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static lyx::regex const separator_re(";;");
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string::const_iterator it = filter.begin();
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string::const_iterator const end = filter.end();
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while (true) {
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match_results<string::const_iterator> what;
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if (!lyx::regex_search(it, end, what, separator_re)) {
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parse_filter(string(it, end));
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break;
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}
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// Everything from the start of the input to
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// the start of the match.
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parse_filter(string(it, what[0].first));
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|
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// Increment the iterator to the end of the match.
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|
it += distance(it, what[0].second);
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}
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}
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void FileFilterList::parse_filter(string const & filter)
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|
{
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|
// Matches "TeX documents (plain) (*.tex)",
|
|
// storing "TeX documents (plain) " as group 1 and "*.tex" as group 2.
|
|
static lyx::regex const filter_re("(.*)\\(([^()]+)\\) *$");
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|
|
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match_results<string::const_iterator> what;
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|
if (!lyx::regex_search(filter, what, filter_re)) {
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// Just a glob, no description.
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|
filters_.push_back(Filter(docstring(), trim(filter)));
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|
} else {
|
|
// FIXME UNICODE
|
|
docstring const desc = from_utf8(string(what[1].first, what[1].second));
|
|
string const globs = string(what[2].first, what[2].second);
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|
filters_.push_back(Filter(trim(desc), trim(globs)));
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|
}
|
|
}
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|
|
|
|
|
/** \returns the equivalent of the string passed in
|
|
* although any brace expressions are expanded.
|
|
* (E.g. "*.{png,jpg}" -> "*.png *.jpg")
|
|
*/
|
|
QStringList fileFilters(QString const & desc)
|
|
{
|
|
// we have: "*.{gif,png,jpg,bmp,pbm,ppm,tga,tif,xpm,xbm}"
|
|
// but need: "*.cpp;*.cc;*.C;*.cxx;*.c++"
|
|
FileFilterList filters(qstring_to_ucs4(desc));
|
|
//LYXERR0("DESC: " << desc);
|
|
QStringList list;
|
|
for (size_t i = 0; i != filters.filters_.size(); ++i) {
|
|
QString f = filters.filters_[i].toString();
|
|
//LYXERR0("FILTER: " << f);
|
|
list.append(f);
|
|
}
|
|
return list;
|
|
}
|
|
|
|
|
|
QString formatToolTip(QString text, int em)
|
|
{
|
|
// 1. QTooltip activates word wrapping only if mightBeRichText()
|
|
// is true. So we convert the text to rich text.
|
|
//
|
|
// 2. The default width is way too small. Setting the width is tricky; first
|
|
// one has to compute the ideal width, and then force it with special
|
|
// html markup.
|
|
|
|
// do nothing if empty or already formatted
|
|
if (text.isEmpty() || text.startsWith(QString("<html>")))
|
|
return text;
|
|
// Convert to rich text if it is not already
|
|
if (!Qt::mightBeRichText(text))
|
|
text = Qt::convertFromPlainText(text, Qt::WhiteSpaceNormal);
|
|
// Compute desired width in pixels
|
|
QFont const font = QToolTip::font();
|
|
int const px_width = em * QFontMetrics(font).width("M");
|
|
// Determine the ideal width of the tooltip
|
|
QTextDocument td("");
|
|
td.setHtml(text);
|
|
td.setDefaultFont(QToolTip::font());
|
|
td.setTextWidth(px_width);
|
|
double best_width = td.idealWidth();
|
|
// Set the line wrapping with appropriate width
|
|
return QString("<html><body><table><tr>"
|
|
"<td align=justify width=%1>%2</td>"
|
|
"</tr></table></body></html>")
|
|
.arg(QString::number(int(best_width) + 1), text);
|
|
}
|
|
|
|
|
|
QString qtHtmlToPlainText(QString const & html)
|
|
{
|
|
if (!Qt::mightBeRichText(html))
|
|
return html;
|
|
QTextDocument td;
|
|
td.setHtml(html);
|
|
return td.toPlainText();
|
|
}
|
|
|
|
|
|
} // namespace lyx
|