diff options
Diffstat (limited to 'src/widgets/itemviews/qabstractitemdelegate.cpp')
| -rw-r--r-- | src/widgets/itemviews/qabstractitemdelegate.cpp | 155 |
1 files changed, 147 insertions, 8 deletions
diff --git a/src/widgets/itemviews/qabstractitemdelegate.cpp b/src/widgets/itemviews/qabstractitemdelegate.cpp index 4dffa6efe7..6efe5ccb71 100644 --- a/src/widgets/itemviews/qabstractitemdelegate.cpp +++ b/src/widgets/itemviews/qabstractitemdelegate.cpp @@ -1,7 +1,7 @@ /**************************************************************************** ** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtWidgets module of the Qt Toolkit. ** @@ -10,9 +10,9 @@ ** 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 Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser @@ -23,8 +23,8 @@ ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** $QT_END_LICENSE$ @@ -42,7 +42,17 @@ #include <qevent.h> #include <qstring.h> #include <qdebug.h> +#include <qlineedit.h> +#include <qtextedit.h> +#include <qplaintextedit.h> +#include <qapplication.h> #include <private/qtextengine_p.h> +#include <private/qabstractitemdelegate_p.h> + +#include <qpa/qplatformintegration.h> +#include <qpa/qplatformdrag.h> +#include <private/qguiapplication_p.h> +#include <private/qdnd_p.h> QT_BEGIN_NAMESPACE @@ -165,7 +175,7 @@ QT_BEGIN_NAMESPACE Creates a new abstract item delegate with the given \a parent. */ QAbstractItemDelegate::QAbstractItemDelegate(QObject *parent) - : QObject(parent) + : QObject(*new QAbstractItemDelegatePrivate, parent) { } @@ -405,6 +415,135 @@ QVector<int> QAbstractItemDelegate::paintingRoles() const return QVector<int>(); } +QAbstractItemDelegatePrivate::QAbstractItemDelegatePrivate() + : QObjectPrivate() +{ +} + +static bool editorHandlesKeyEvent(QWidget *editor, const QKeyEvent *event) +{ +#ifndef QT_NO_TEXTEDIT + // do not filter enter / return / tab / backtab for QTextEdit or QPlainTextEdit + if (qobject_cast<QTextEdit *>(editor) || qobject_cast<QPlainTextEdit *>(editor)) { + switch (event->key()) { + case Qt::Key_Tab: + case Qt::Key_Backtab: + case Qt::Key_Enter: + case Qt::Key_Return: + return true; + + default: + break; + } + } +#endif // QT_NO_TEXTEDIT + + Q_UNUSED(editor); + Q_UNUSED(event); + return false; +} + +bool QAbstractItemDelegatePrivate::editorEventFilter(QObject *object, QEvent *event) +{ + Q_Q(QAbstractItemDelegate); + + QWidget *editor = qobject_cast<QWidget*>(object); + if (!editor) + return false; + if (event->type() == QEvent::KeyPress) { + QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event); + if (editorHandlesKeyEvent(editor, keyEvent)) + return false; + + switch (keyEvent->key()) { + case Qt::Key_Tab: + if (tryFixup(editor)) { + emit q->commitData(editor); + emit q->closeEditor(editor, QAbstractItemDelegate::EditNextItem); + } + return true; + case Qt::Key_Backtab: + if (tryFixup(editor)) { + emit q->commitData(editor); + emit q->closeEditor(editor, QAbstractItemDelegate::EditPreviousItem); + } + return true; + case Qt::Key_Enter: + case Qt::Key_Return: + // We want the editor to be able to process the key press + // before committing the data (e.g. so it can do + // validation/fixup of the input). + if (!tryFixup(editor)) + return true; + + QMetaObject::invokeMethod(q, "_q_commitDataAndCloseEditor", + Qt::QueuedConnection, Q_ARG(QWidget*, editor)); + return false; + case Qt::Key_Escape: + // don't commit data + emit q->closeEditor(editor, QAbstractItemDelegate::RevertModelCache); + return true; + default: + return false; + } + } else if (event->type() == QEvent::FocusOut || (event->type() == QEvent::Hide && editor->isWindow())) { + //the Hide event will take care of he editors that are in fact complete dialogs + if (!editor->isActiveWindow() || (QApplication::focusWidget() != editor)) { + QWidget *w = QApplication::focusWidget(); + while (w) { // don't worry about focus changes internally in the editor + if (w == editor) + return false; + w = w->parentWidget(); + } +#ifndef QT_NO_DRAGANDDROP + // The window may lose focus during an drag operation. + // i.e when dragging involves the taskbar on Windows. + QPlatformDrag *platformDrag = QGuiApplicationPrivate::instance()->platformIntegration()->drag(); + if (platformDrag && platformDrag->currentDrag()) { + return false; + } +#endif + if (tryFixup(editor)) + emit q->commitData(editor); + + emit q->closeEditor(editor, QAbstractItemDelegate::NoHint); + } + } else if (event->type() == QEvent::ShortcutOverride) { + if (static_cast<QKeyEvent*>(event)->key() == Qt::Key_Escape) { + event->accept(); + return true; + } + } + return false; +} + +bool QAbstractItemDelegatePrivate::tryFixup(QWidget *editor) +{ +#ifndef QT_NO_LINEEDIT + if (QLineEdit *e = qobject_cast<QLineEdit*>(editor)) { + if (!e->hasAcceptableInput()) { + if (const QValidator *validator = e->validator()) { + QString text = e->text(); + validator->fixup(text); + e->setText(text); + } + return e->hasAcceptableInput(); + } + } +#endif // QT_NO_LINEEDIT + + return true; +} + +void QAbstractItemDelegatePrivate::_q_commitDataAndCloseEditor(QWidget *editor) +{ + Q_Q(QAbstractItemDelegate); + emit q->commitData(editor); + emit q->closeEditor(editor, QAbstractItemDelegate::SubmitModelCache); +} + QT_END_NAMESPACE +#include "moc_qabstractitemdelegate.cpp" + #endif // QT_NO_ITEMVIEWS |