diff options
Diffstat (limited to 'src/labs/platform/qquicklabsplatformfontdialog.cpp')
-rw-r--r-- | src/labs/platform/qquicklabsplatformfontdialog.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/labs/platform/qquicklabsplatformfontdialog.cpp b/src/labs/platform/qquicklabsplatformfontdialog.cpp new file mode 100644 index 0000000000..7b8a1e193d --- /dev/null +++ b/src/labs/platform/qquicklabsplatformfontdialog.cpp @@ -0,0 +1,178 @@ +// Copyright (C) 2017 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 "qquicklabsplatformfontdialog_p.h" + +QT_BEGIN_NAMESPACE + +/*! + \qmltype FontDialog + \inherits Dialog +//! \instantiates QQuickLabsPlatformFontDialog + \inqmlmodule Qt.labs.platform + \since 5.8 + \brief A native font dialog. + + The FontDialog type provides a QML API for native platform font dialogs. + + \image qtlabsplatform-fontdialog-gtk.png + + To show a font dialog, construct an instance of FontDialog, set the + desired properties, and call \l {Dialog::}{open()}. The \l currentFont + property can be used to determine the currently selected font in the + dialog. The \l font property is updated only after the final selection + has been made by accepting the dialog. + + \code + MenuItem { + text: "Font" + onTriggered: fontDialog.open() + } + + FontDialog { + id: fontDialog + currentFont.family: document.font + } + + MyDocument { + id: document + font: fontDialog.font + } + \endcode + + \section2 Availability + + A native platform font dialog is currently available on the following platforms: + + \list + \li iOS + \li Linux (when running with the GTK+ platform theme) + \li macOS + \endlist + + \input includes/widgets.qdocinc 1 + + \labs +*/ + +QQuickLabsPlatformFontDialog::QQuickLabsPlatformFontDialog(QObject *parent) + : QQuickLabsPlatformDialog(QPlatformTheme::FontDialog, parent), + m_options(QFontDialogOptions::create()) +{ +} + +/*! + \qmlproperty font Qt.labs.platform::FontDialog::font + + This property holds the final accepted font. + + Unlike the \l currentFont property, the \c font property is not updated + while the user is selecting fonts in the dialog, but only after the final + selection has been made. That is, when the user has clicked \uicontrol OK + to accept a font. Alternatively, the \l {Dialog::}{accepted()} signal + can be handled to get the final selection. + + \sa currentFont, {Dialog::}{accepted()} +*/ +QFont QQuickLabsPlatformFontDialog::font() const +{ + return m_font; +} + +void QQuickLabsPlatformFontDialog::setFont(const QFont &font) +{ + if (m_font == font) + return; + + m_font = font; + setCurrentFont(font); + emit fontChanged(); +} + +/*! + \qmlproperty font Qt.labs.platform::FontDialog::currentFont + + This property holds the currently selected font in the dialog. + + Unlike the \l font property, the \c currentFont property is updated + while the user is selecting fonts in the dialog, even before the final + selection has been made. + + \sa font +*/ +QFont QQuickLabsPlatformFontDialog::currentFont() const +{ + if (QPlatformFontDialogHelper *fontDialog = qobject_cast<QPlatformFontDialogHelper *>(handle())) + return fontDialog->currentFont(); + return m_currentFont; +} + +void QQuickLabsPlatformFontDialog::setCurrentFont(const QFont &font) +{ + if (QPlatformFontDialogHelper *fontDialog = qobject_cast<QPlatformFontDialogHelper *>(handle())) + fontDialog->setCurrentFont(font); + m_currentFont = font; +} + +/*! + \qmlproperty flags Qt.labs.platform::FontDialog::options + + This property holds the various options that affect the look and feel of the dialog. + + By default, all options are disabled. + + Options should be set before showing the dialog. Setting them while the dialog is + visible is not guaranteed to have an immediate effect on the dialog (depending on + the option and on the platform). + + Available options: + \value FontDialog.ScalableFonts Show scalable fonts. + \value FontDialog.NonScalableFonts Show non-scalable fonts. + \value FontDialog.MonospacedFonts Show monospaced fonts. + \value FontDialog.ProportionalFonts Show proportional fonts. + \value FontDialog.NoButtons Don't display \uicontrol OK and \uicontrol Cancel buttons (useful for "live dialogs"). +*/ +QFontDialogOptions::FontDialogOptions QQuickLabsPlatformFontDialog::options() const +{ + return m_options->options(); +} + +void QQuickLabsPlatformFontDialog::setOptions(QFontDialogOptions::FontDialogOptions options) +{ + if (options == m_options->options()) + return; + + m_options->setOptions(options); + emit optionsChanged(); +} + +bool QQuickLabsPlatformFontDialog::useNativeDialog() const +{ + return QQuickLabsPlatformDialog::useNativeDialog() + && !m_options->testOption(QFontDialogOptions::DontUseNativeDialog); +} + +void QQuickLabsPlatformFontDialog::onCreate(QPlatformDialogHelper *dialog) +{ + if (QPlatformFontDialogHelper *fontDialog = qobject_cast<QPlatformFontDialogHelper *>(dialog)) { + connect(fontDialog, &QPlatformFontDialogHelper::currentFontChanged, this, &QQuickLabsPlatformFontDialog::currentFontChanged); + fontDialog->setOptions(m_options); + } +} + +void QQuickLabsPlatformFontDialog::onShow(QPlatformDialogHelper *dialog) +{ + m_options->setWindowTitle(title()); + if (QPlatformFontDialogHelper *fontDialog = qobject_cast<QPlatformFontDialogHelper *>(dialog)) + fontDialog->setOptions(m_options); +} + +void QQuickLabsPlatformFontDialog::accept() +{ + setFont(currentFont()); + QQuickLabsPlatformDialog::accept(); +} + +QT_END_NAMESPACE + +#include "moc_qquicklabsplatformfontdialog_p.cpp" |