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Diffstat (limited to 'src/gui/widgets/qfontcombobox.cpp')
| -rw-r--r-- | src/gui/widgets/qfontcombobox.cpp | 474 |
1 files changed, 0 insertions, 474 deletions
diff --git a/src/gui/widgets/qfontcombobox.cpp b/src/gui/widgets/qfontcombobox.cpp deleted file mode 100644 index d27f9dc339..0000000000 --- a/src/gui/widgets/qfontcombobox.cpp +++ /dev/null @@ -1,474 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qfontcombobox.h" - -#ifndef QT_NO_FONTCOMBOBOX - -#include <qstringlistmodel.h> -#include <qitemdelegate.h> -#include <qlistview.h> -#include <qpainter.h> -#include <qevent.h> -#include <qapplication.h> -#include <private/qcombobox_p.h> -#include <qdebug.h> - -QT_BEGIN_NAMESPACE - -static QFontDatabase::WritingSystem writingSystemForFont(const QFont &font, bool *hasLatin) -{ - *hasLatin = true; - - QList<QFontDatabase::WritingSystem> writingSystems = QFontDatabase().writingSystems(font.family()); -// qDebug() << font.family() << writingSystems; - - // this just confuses the algorithm below. Vietnamese is Latin with lots of special chars - writingSystems.removeAll(QFontDatabase::Vietnamese); - - QFontDatabase::WritingSystem system = QFontDatabase::Any; - - if (!writingSystems.contains(QFontDatabase::Latin)) { - *hasLatin = false; - // we need to show something - if (writingSystems.count()) - system = writingSystems.last(); - } else { - writingSystems.removeAll(QFontDatabase::Latin); - } - - if (writingSystems.isEmpty()) - return system; - - if (writingSystems.count() == 1 && writingSystems.at(0) > QFontDatabase::Cyrillic) { - system = writingSystems.at(0); - return system; - } - - if (writingSystems.count() <= 2 - && writingSystems.last() > QFontDatabase::Armenian - && writingSystems.last() < QFontDatabase::Vietnamese) { - system = writingSystems.last(); - return system; - } - - if (writingSystems.count() <= 5 - && writingSystems.last() >= QFontDatabase::SimplifiedChinese - && writingSystems.last() <= QFontDatabase::Korean) - system = writingSystems.last(); - - return system; -} - -class QFontFamilyDelegate : public QAbstractItemDelegate -{ - Q_OBJECT -public: - explicit QFontFamilyDelegate(QObject *parent); - - // painting - void paint(QPainter *painter, - const QStyleOptionViewItem &option, - const QModelIndex &index) const; - - QSize sizeHint(const QStyleOptionViewItem &option, - const QModelIndex &index) const; - - QIcon truetype; - QIcon bitmap; - QFontDatabase::WritingSystem writingSystem; -}; - -QFontFamilyDelegate::QFontFamilyDelegate(QObject *parent) - : QAbstractItemDelegate(parent) -{ - truetype = QIcon(QLatin1String(":/trolltech/styles/commonstyle/images/fonttruetype-16.png")); - bitmap = QIcon(QLatin1String(":/trolltech/styles/commonstyle/images/fontbitmap-16.png")); - writingSystem = QFontDatabase::Any; -} - -void QFontFamilyDelegate::paint(QPainter *painter, - const QStyleOptionViewItem &option, - const QModelIndex &index) const -{ - QString text = index.data(Qt::DisplayRole).toString(); - QFont font(option.font); - font.setPointSize(QFontInfo(font).pointSize() * 3 / 2); - QFont font2 = font; - font2.setFamily(text); - - bool hasLatin; - QFontDatabase::WritingSystem system = writingSystemForFont(font2, &hasLatin); - if (hasLatin) - font = font2; - - QRect r = option.rect; - - if (option.state & QStyle::State_Selected) { - painter->save(); - painter->setBrush(option.palette.highlight()); - painter->setPen(Qt::NoPen); - painter->drawRect(option.rect); - painter->setPen(QPen(option.palette.highlightedText(), 0)); - } - - const QIcon *icon = &bitmap; - if (QFontDatabase().isSmoothlyScalable(text)) { - icon = &truetype; - } - QSize actualSize = icon->actualSize(r.size()); - - icon->paint(painter, r, Qt::AlignLeft|Qt::AlignVCenter); - if (option.direction == Qt::RightToLeft) - r.setRight(r.right() - actualSize.width() - 4); - else - r.setLeft(r.left() + actualSize.width() + 4); - - QFont old = painter->font(); - painter->setFont(font); - painter->drawText(r, Qt::AlignVCenter|Qt::AlignLeading|Qt::TextSingleLine, text); - - if (writingSystem != QFontDatabase::Any) - system = writingSystem; - - if (system != QFontDatabase::Any) { - int w = painter->fontMetrics().width(text + QLatin1String(" ")); - painter->setFont(font2); - QString sample = QFontDatabase().writingSystemSample(system); - if (option.direction == Qt::RightToLeft) - r.setRight(r.right() - w); - else - r.setLeft(r.left() + w); - painter->drawText(r, Qt::AlignVCenter|Qt::AlignLeading|Qt::TextSingleLine, sample); - } - painter->setFont(old); - - if (option.state & QStyle::State_Selected) - painter->restore(); - -} - -QSize QFontFamilyDelegate::sizeHint(const QStyleOptionViewItem &option, - const QModelIndex &index) const -{ - QString text = index.data(Qt::DisplayRole).toString(); - QFont font(option.font); -// font.setFamily(text); - font.setPointSize(QFontInfo(font).pointSize() * 3/2); - QFontMetrics fontMetrics(font); - return QSize(fontMetrics.width(text), fontMetrics.height()); -} - - -class QFontComboBoxPrivate : public QComboBoxPrivate -{ -public: - inline QFontComboBoxPrivate() { filters = QFontComboBox::AllFonts; } - - QFontComboBox::FontFilters filters; - QFont currentFont; - - void _q_updateModel(); - void _q_currentChanged(const QString &); - - Q_DECLARE_PUBLIC(QFontComboBox) -}; - - -void QFontComboBoxPrivate::_q_updateModel() -{ - Q_Q(QFontComboBox); - const int scalableMask = (QFontComboBox::ScalableFonts | QFontComboBox::NonScalableFonts); - const int spacingMask = (QFontComboBox::ProportionalFonts | QFontComboBox::MonospacedFonts); - - QStringListModel *m = qobject_cast<QStringListModel *>(q->model()); - if (!m) - return; - QFontFamilyDelegate *delegate = qobject_cast<QFontFamilyDelegate *>(q->view()->itemDelegate()); - QFontDatabase::WritingSystem system = delegate ? delegate->writingSystem : QFontDatabase::Any; - - QFontDatabase fdb; - QStringList list = fdb.families(system); - QStringList result; - - int offset = 0; - QFontInfo fi(currentFont); - - for (int i = 0; i < list.size(); ++i) { - if ((filters & scalableMask) && (filters & scalableMask) != scalableMask) { - if (bool(filters & QFontComboBox::ScalableFonts) != fdb.isSmoothlyScalable(list.at(i))) - continue; - } - if ((filters & spacingMask) && (filters & spacingMask) != spacingMask) { - if (bool(filters & QFontComboBox::MonospacedFonts) != fdb.isFixedPitch(list.at(i))) - continue; - } - result += list.at(i); - if (list.at(i) == fi.family() || list.at(i).startsWith(fi.family() + QLatin1String(" ["))) - offset = result.count() - 1; - } - list = result; - - //we need to block the signals so that the model doesn't emit reset - //this prevents the current index from changing - //it will be updated just after this - ///TODO: we should finda way to avoid blocking signals and have a real update of the model - const bool old = m->blockSignals(true); - m->setStringList(list); - m->blockSignals(old); - - if (list.isEmpty()) { - if (currentFont != QFont()) { - currentFont = QFont(); - emit q->currentFontChanged(currentFont); - } - } else { - q->setCurrentIndex(offset); - } -} - - -void QFontComboBoxPrivate::_q_currentChanged(const QString &text) -{ - Q_Q(QFontComboBox); - if (currentFont.family() != text) { - currentFont.setFamily(text); - emit q->currentFontChanged(currentFont); - } -} - -/*! - \class QFontComboBox - \brief The QFontComboBox widget is a combobox that lets the user - select a font family. - - \since 4.2 - \ingroup basicwidgets - - The combobox is populated with an alphabetized list of font - family names, such as Arial, Helvetica, and Times New Roman. - Family names are displayed using the actual font when possible. - For fonts such as Symbol, where the name is not representable in - the font itself, a sample of the font is displayed next to the - family name. - - QFontComboBox is often used in toolbars, in conjunction with a - QComboBox for controlling the font size and two \l{QToolButton}s - for bold and italic. - - When the user selects a new font, the currentFontChanged() signal - is emitted in addition to currentIndexChanged(). - - Call setWritingSystem() to tell QFontComboBox to show only fonts - that support a given writing system, and setFontFilters() to - filter out certain types of fonts as e.g. non scalable fonts or - monospaced fonts. - - \image windowsxp-fontcombobox.png Screenshot of QFontComboBox on Windows XP - - \sa QComboBox, QFont, QFontInfo, QFontMetrics, QFontDatabase, {Character Map Example} -*/ - -/*! - \fn void QFontComboBox::setWritingSystem(QFontDatabase::WritingSystem script) -*/ - -/*! - \fn void QFontComboBox::setCurrentFont(const QFont &font); -*/ - -/*! - Constructs a font combobox with the given \a parent. -*/ -QFontComboBox::QFontComboBox(QWidget *parent) - : QComboBox(*new QFontComboBoxPrivate, parent) -{ - Q_D(QFontComboBox); - d->currentFont = font(); - setEditable(true); - - QStringListModel *m = new QStringListModel(this); - setModel(m); - setItemDelegate(new QFontFamilyDelegate(this)); - QListView *lview = qobject_cast<QListView*>(view()); - if (lview) - lview->setUniformItemSizes(true); - setWritingSystem(QFontDatabase::Any); - - connect(this, SIGNAL(currentIndexChanged(QString)), - this, SLOT(_q_currentChanged(QString))); - - connect(qApp, SIGNAL(fontDatabaseChanged()), - this, SLOT(_q_updateModel())); -} - - -/*! - Destroys the combobox. -*/ -QFontComboBox::~QFontComboBox() -{ -} - -/*! - \property QFontComboBox::writingSystem - \brief the writing system that serves as a filter for the combobox - - If \a script is QFontDatabase::Any (the default), all fonts are - listed. - - \sa fontFilters -*/ - -void QFontComboBox::setWritingSystem(QFontDatabase::WritingSystem script) -{ - Q_D(QFontComboBox); - QFontFamilyDelegate *delegate = qobject_cast<QFontFamilyDelegate *>(view()->itemDelegate()); - if (delegate) - delegate->writingSystem = script; - d->_q_updateModel(); -} - -QFontDatabase::WritingSystem QFontComboBox::writingSystem() const -{ - QFontFamilyDelegate *delegate = qobject_cast<QFontFamilyDelegate *>(view()->itemDelegate()); - if (delegate) - return delegate->writingSystem; - return QFontDatabase::Any; -} - - -/*! - \enum QFontComboBox::FontFilter - - This enum can be used to only show certain types of fonts in the font combo box. - - \value AllFonts Show all fonts - \value ScalableFonts Show scalable fonts - \value NonScalableFonts Show non scalable fonts - \value MonospacedFonts Show monospaced fonts - \value ProportionalFonts Show proportional fonts -*/ - -/*! - \property QFontComboBox::fontFilters - \brief the filter for the combobox - - By default, all fonts are listed. - - \sa writingSystem -*/ -void QFontComboBox::setFontFilters(FontFilters filters) -{ - Q_D(QFontComboBox); - d->filters = filters; - d->_q_updateModel(); -} - -QFontComboBox::FontFilters QFontComboBox::fontFilters() const -{ - Q_D(const QFontComboBox); - return d->filters; -} - -/*! - \property QFontComboBox::currentFont - \brief the currently selected font - - \sa currentFontChanged(), currentIndex, currentText -*/ -QFont QFontComboBox::currentFont() const -{ - Q_D(const QFontComboBox); - return d->currentFont; -} - -void QFontComboBox::setCurrentFont(const QFont &font) -{ - Q_D(QFontComboBox); - if (font != d->currentFont) { - d->currentFont = font; - d->_q_updateModel(); - if (d->currentFont == font) { //else the signal has already be emitted by _q_updateModel - emit currentFontChanged(d->currentFont); - } - } -} - -/*! - \fn QFontComboBox::currentFontChanged(const QFont &font) - - This signal is emitted whenever the current font changes, with - the new \a font. - - \sa currentFont -*/ - -/*! - \reimp -*/ -bool QFontComboBox::event(QEvent *e) -{ - if (e->type() == QEvent::Resize) { - QListView *lview = qobject_cast<QListView*>(view()); - if (lview) - lview->window()->setFixedWidth(width() * 5 / 3); - } - return QComboBox::event(e); -} - -/*! - \reimp -*/ -QSize QFontComboBox::sizeHint() const -{ - QSize sz = QComboBox::sizeHint(); - QFontMetrics fm(font()); - sz.setWidth(fm.width(QLatin1Char('m'))*14); - return sz; -} - -QT_END_NAMESPACE - -#include "qfontcombobox.moc" -#include "moc_qfontcombobox.cpp" - -#endif // QT_NO_FONTCOMBOBOX |