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-rw-r--r--src/widgets/widgets/qfontcombobox.cpp239
1 files changed, 150 insertions, 89 deletions
diff --git a/src/widgets/widgets/qfontcombobox.cpp b/src/widgets/widgets/qfontcombobox.cpp
index 60a1f06764..c80687c7ed 100644
--- a/src/widgets/widgets/qfontcombobox.cpp
+++ b/src/widgets/widgets/qfontcombobox.cpp
@@ -1,46 +1,11 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtWidgets module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qfontcombobox.h"
+#include <qabstractitemdelegate.h>
+#include <qaccessible.h>
#include <qstringlistmodel.h>
-#include <qitemdelegate.h>
#include <qlistview.h>
#include <qpainter.h>
#include <qevent.h>
@@ -48,8 +13,12 @@
#include <private/qcombobox_p.h>
#include <qdebug.h>
+#include <array>
+
QT_BEGIN_NAMESPACE
+using namespace Qt::StringLiterals;
+
static QFontDatabase::WritingSystem writingSystemFromScript(QLocale::Script script)
{
switch (script) {
@@ -134,7 +103,7 @@ static QFontDatabase::WritingSystem writingSystemFromLocale()
static QFontDatabase::WritingSystem writingSystemForFont(const QFont &font, bool *hasLatin)
{
- QList<QFontDatabase::WritingSystem> writingSystems = QFontDatabase::writingSystems(font.families().first());
+ QList<QFontDatabase::WritingSystem> writingSystems = QFontDatabase::writingSystems(font.families().constFirst());
// qDebug() << font.families().first() << writingSystems;
// this just confuses the algorithm below. Vietnamese is Latin with lots of special chars
@@ -166,23 +135,39 @@ static QFontDatabase::WritingSystem writingSystemForFont(const QFont &font, bool
return system;
}
- if (writingSystems.count() == 1 && system > QFontDatabase::Cyrillic)
+ if (writingSystems.size() == 1 && system > QFontDatabase::Cyrillic)
return system;
- if (writingSystems.count() <= 2 && system > QFontDatabase::Armenian && system < QFontDatabase::Vietnamese)
+ if (writingSystems.size() <= 2 && system > QFontDatabase::Armenian && system < QFontDatabase::Vietnamese)
return system;
- if (writingSystems.count() <= 5 && system >= QFontDatabase::SimplifiedChinese && system <= QFontDatabase::Korean)
+ if (writingSystems.size() <= 5 && system >= QFontDatabase::SimplifiedChinese && system <= QFontDatabase::Korean)
return system;
return QFontDatabase::Any;
}
+class QFontComboBoxPrivate : public QComboBoxPrivate
+{
+public:
+ QFontComboBox::FontFilters filters = QFontComboBox::AllFonts;
+ QFont currentFont;
+ QHash<QFontDatabase::WritingSystem, QString> sampleTextForWritingSystem;
+ QHash<QString, QString> sampleTextForFontFamily;
+ QHash<QString, QFont> displayFontForFontFamily;
+ std::array<QMetaObject::Connection, 2> connections;
+
+ void updateModel();
+ void currentChanged(const QString &);
+
+ Q_DECLARE_PUBLIC(QFontComboBox)
+};
+
class QFontFamilyDelegate : public QAbstractItemDelegate
{
Q_OBJECT
public:
- explicit QFontFamilyDelegate(QObject *parent);
+ explicit QFontFamilyDelegate(QObject *parent, QFontComboBoxPrivate *comboP);
// painting
void paint(QPainter *painter,
@@ -195,13 +180,15 @@ public:
const QIcon truetype;
const QIcon bitmap;
QFontDatabase::WritingSystem writingSystem;
+ QFontComboBoxPrivate *comboPrivate;
};
-QFontFamilyDelegate::QFontFamilyDelegate(QObject *parent)
+QFontFamilyDelegate::QFontFamilyDelegate(QObject *parent, QFontComboBoxPrivate *comboP)
: QAbstractItemDelegate(parent),
truetype(QStringLiteral(":/qt-project.org/styles/commonstyle/images/fonttruetype-16.png")),
bitmap(QStringLiteral(":/qt-project.org/styles/commonstyle/images/fontbitmap-16.png")),
- writingSystem(QFontDatabase::Any)
+ writingSystem(QFontDatabase::Any),
+ comboPrivate(comboP)
{
}
@@ -220,6 +207,8 @@ void QFontFamilyDelegate::paint(QPainter *painter,
if (hasLatin)
font = font2;
+ font = comboPrivate->displayFontForFontFamily.value(text, font);
+
QRect r = option.rect;
if (option.state & QStyle::State_Selected) {
@@ -264,10 +253,11 @@ void QFontFamilyDelegate::paint(QPainter *painter,
if (writingSystem != QFontDatabase::Any)
system = writingSystem;
- if (system != QFontDatabase::Any) {
- int w = painter->fontMetrics().horizontalAdvance(text + QLatin1String(" "));
+ const QString sampleText = comboPrivate->sampleTextForFontFamily.value(text, comboPrivate->sampleTextForWritingSystem.value(system));
+ if (system != QFontDatabase::Any || !sampleText.isEmpty()) {
+ int w = painter->fontMetrics().horizontalAdvance(text + " "_L1);
painter->setFont(font2);
- QString sample = QFontDatabase::writingSystemSample(system);
+ const QString sample = !sampleText.isEmpty() ? sampleText : QFontDatabase::writingSystemSample(system);
if (option.direction == Qt::RightToLeft)
r.setRight(r.right() - w);
else
@@ -293,24 +283,13 @@ QSize QFontFamilyDelegate::sizeHint(const QStyleOptionViewItem &option,
}
-class QFontComboBoxPrivate : public QComboBoxPrivate
+void QFontComboBoxPrivate::updateModel()
{
-public:
- inline QFontComboBoxPrivate() { filters = QFontComboBox::AllFonts; }
-
- QFontComboBox::FontFilters filters;
- QFont currentFont;
-
- void _q_updateModel();
- void _q_currentChanged(const QString &);
-
- Q_DECLARE_PUBLIC(QFontComboBox)
-};
+ Q_Q(QFontComboBox);
+ if (QCoreApplication::closingDown())
+ return;
-void QFontComboBoxPrivate::_q_updateModel()
-{
- Q_Q(QFontComboBox);
const int scalableMask = (QFontComboBox::ScalableFonts | QFontComboBox::NonScalableFonts);
const int spacingMask = (QFontComboBox::ProportionalFonts | QFontComboBox::MonospacedFonts);
@@ -320,29 +299,28 @@ void QFontComboBoxPrivate::_q_updateModel()
QFontFamilyDelegate *delegate = qobject_cast<QFontFamilyDelegate *>(q->view()->itemDelegate());
QFontDatabase::WritingSystem system = delegate ? delegate->writingSystem : QFontDatabase::Any;
- QStringList list = QFontDatabase::families(system);
+ const QStringList list = QFontDatabase::families(system);
QStringList result;
int offset = 0;
QFontInfo fi(currentFont);
- for (int i = 0; i < list.size(); ++i) {
- if (QFontDatabase::isPrivateFamily(list.at(i)))
+ for (const auto &family : list) {
+ if (QFontDatabase::isPrivateFamily(family))
continue;
if ((filters & scalableMask) && (filters & scalableMask) != scalableMask) {
- if (bool(filters & QFontComboBox::ScalableFonts) != QFontDatabase::isSmoothlyScalable(list.at(i)))
+ if (bool(filters & QFontComboBox::ScalableFonts) != QFontDatabase::isSmoothlyScalable(family))
continue;
}
if ((filters & spacingMask) && (filters & spacingMask) != spacingMask) {
- if (bool(filters & QFontComboBox::MonospacedFonts) != QFontDatabase::isFixedPitch(list.at(i)))
+ if (bool(filters & QFontComboBox::MonospacedFonts) != QFontDatabase::isFixedPitch(family))
continue;
}
- result += list.at(i);
- if (list.at(i) == fi.family() || list.at(i).startsWith(fi.family() + QLatin1String(" [")))
- offset = result.count() - 1;
+ result += family;
+ if (family == fi.family() || family.startsWith(fi.family() + " ["_L1))
+ offset = result.size() - 1;
}
- list = result;
//we need to block the signals so that the model doesn't emit reset
//this prevents the current index from changing
@@ -350,10 +328,17 @@ void QFontComboBoxPrivate::_q_updateModel()
///TODO: we should finda way to avoid blocking signals and have a real update of the model
{
const QSignalBlocker blocker(m);
- m->setStringList(list);
+ m->setStringList(result);
+ // Since the modelReset signal is blocked the view will not emit an accessibility event
+ #if QT_CONFIG(accessibility)
+ if (QAccessible::isActive()) {
+ QAccessibleTableModelChangeEvent accessibleEvent(q->view(), QAccessibleTableModelChangeEvent::ModelReset);
+ QAccessible::updateAccessibility(&accessibleEvent);
+ }
+ #endif
}
- if (list.isEmpty()) {
+ if (result.isEmpty()) {
if (currentFont != QFont()) {
currentFont = QFont();
emit q->currentFontChanged(currentFont);
@@ -364,10 +349,11 @@ void QFontComboBoxPrivate::_q_updateModel()
}
-void QFontComboBoxPrivate::_q_currentChanged(const QString &text)
+void QFontComboBoxPrivate::currentChanged(const QString &text)
{
Q_Q(QFontComboBox);
- if (currentFont.families().first() != text) {
+ const QStringList families = currentFont.families();
+ if (families.isEmpty() || families.first() != text) {
currentFont.setFamilies(QStringList{text});
emit q->currentFontChanged(currentFont);
}
@@ -403,7 +389,7 @@ void QFontComboBoxPrivate::_q_currentChanged(const QString &text)
\image windowsvista-fontcombobox.png Screenshot of QFontComboBox on Windows Vista
- \sa QComboBox, QFont, QFontInfo, QFontMetrics, QFontDatabase, {Character Map Example}
+ \sa QComboBox, QFont, QFontInfo, QFontMetrics, QFontDatabase
*/
/*!
@@ -418,17 +404,18 @@ QFontComboBox::QFontComboBox(QWidget *parent)
QStringListModel *m = new QStringListModel(this);
setModel(m);
- setItemDelegate(new QFontFamilyDelegate(this));
+ setItemDelegate(new QFontFamilyDelegate(this, d));
QListView *lview = qobject_cast<QListView*>(view());
if (lview)
lview->setUniformItemSizes(true);
setWritingSystem(QFontDatabase::Any);
- connect(this, SIGNAL(currentTextChanged(QString)),
- this, SLOT(_q_currentChanged(QString)));
-
- connect(qApp, SIGNAL(fontDatabaseChanged()),
- this, SLOT(_q_updateModel()));
+ d->connections = {
+ QObjectPrivate::connect(this, &QFontComboBox::currentTextChanged,
+ d, &QFontComboBoxPrivate::currentChanged),
+ QObjectPrivate::connect(qApp, &QGuiApplication::fontDatabaseChanged,
+ d, &QFontComboBoxPrivate::updateModel),
+ };
}
@@ -437,6 +424,9 @@ QFontComboBox::QFontComboBox(QWidget *parent)
*/
QFontComboBox::~QFontComboBox()
{
+ Q_D(const QFontComboBox);
+ for (const QMetaObject::Connection &connection : d->connections)
+ QObject::disconnect(connection);
}
/*!
@@ -455,7 +445,7 @@ void QFontComboBox::setWritingSystem(QFontDatabase::WritingSystem script)
QFontFamilyDelegate *delegate = qobject_cast<QFontFamilyDelegate *>(view()->itemDelegate());
if (delegate)
delegate->writingSystem = script;
- d->_q_updateModel();
+ d->updateModel();
}
QFontDatabase::WritingSystem QFontComboBox::writingSystem() const
@@ -491,7 +481,7 @@ void QFontComboBox::setFontFilters(FontFilters filters)
{
Q_D(QFontComboBox);
d->filters = filters;
- d->_q_updateModel();
+ d->updateModel();
}
QFontComboBox::FontFilters QFontComboBox::fontFilters() const
@@ -517,8 +507,8 @@ 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
+ d->updateModel();
+ if (d->currentFont == font) { //else the signal has already be emitted by updateModel
emit currentFontChanged(d->currentFont);
}
}
@@ -555,10 +545,81 @@ QSize QFontComboBox::sizeHint() const
{
QSize sz = QComboBox::sizeHint();
QFontMetrics fm(font());
- sz.setWidth(fm.horizontalAdvance(QLatin1Char('m'))*14);
+ sz.setWidth(fm.horizontalAdvance(u'm') * 14);
return sz;
}
+/*!
+ Sets the \a sampleText to show after the font name (when the combo is open) for a given \a writingSystem.
+
+ The sample text given with setSampleTextForFont() has priority.
+
+ \since 6.3
+*/
+void QFontComboBox::setSampleTextForSystem(QFontDatabase::WritingSystem writingSystem, const QString &sampleText)
+{
+ Q_D(QFontComboBox);
+ d->sampleTextForWritingSystem[writingSystem] = sampleText;
+}
+
+
+/*!
+ Returns the sample text to show after the font name (when the combo is open) for a given \a writingSystem.
+
+ \since 6.3
+*/
+QString QFontComboBox::sampleTextForSystem(QFontDatabase::WritingSystem writingSystem) const
+{
+ Q_D(const QFontComboBox);
+ return d->sampleTextForWritingSystem.value(writingSystem);
+}
+
+/*!
+ Sets the \a sampleText to show after the font name (when the combo is open) for a given \a fontFamily.
+
+ The sample text given with this function has priority over the one set with setSampleTextForSystem().
+
+ \since 6.3
+*/
+void QFontComboBox::setSampleTextForFont(const QString &fontFamily, const QString &sampleText)
+{
+ Q_D(QFontComboBox);
+ d->sampleTextForFontFamily[fontFamily] = sampleText;
+}
+
+/*!
+ Returns the sample text to show after the font name (when the combo is open) for a given \a fontFamily.
+
+ \since 6.3
+*/
+QString QFontComboBox::sampleTextForFont(const QString &fontFamily) const
+{
+ Q_D(const QFontComboBox);
+ return d->sampleTextForFontFamily.value(fontFamily);
+}
+
+/*!
+ Sets the \a font to be used to display a given \a fontFamily (when the combo is open).
+
+ \since 6.3
+*/
+void QFontComboBox::setDisplayFont(const QString &fontFamily, const QFont &font)
+{
+ Q_D(QFontComboBox);
+ d->displayFontForFontFamily[fontFamily] = font;
+}
+
+/*!
+ Returns the font (if set) to be used to display a given \a fontFamily (when the combo is open).
+
+ \since 6.3
+*/
+std::optional<QFont> QFontComboBox::displayFont(const QString &fontFamily) const
+{
+ Q_D(const QFontComboBox);
+ return d->displayFontForFontFamily.value(fontFamily, {});
+}
+
QT_END_NAMESPACE
#include "qfontcombobox.moc"