File indexing completed on 2024-04-28 15:32:16

 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 2004 Felix Berger <felixberger@beldesign.de>
 
     SPDX-License-Identifier: LGPL-2.0-only
 */
 
 #include "ktoolbarlabelaction.h"
 
 #include <QApplication>
 #include <QLabel>
 #include <QPointer>
 #include <QToolBar>
 
 class KToolBarLabelActionPrivate
 {
 public:
     QPointer<QAction> buddy;
     QPointer<QLabel> label;
 };
 
 KToolBarLabelAction::KToolBarLabelAction(const QString &text, QObject *parent)
     : QWidgetAction(parent)
     , d(new KToolBarLabelActionPrivate)
 {
     setText(text);
     d->label = nullptr;
 }
 
 KToolBarLabelAction::KToolBarLabelAction(QAction *buddy, const QString &text, QObject *parent)
     : QWidgetAction(parent)
     , d(new KToolBarLabelActionPrivate)
 {
     setBuddy(buddy);
     setText(text);
 
     d->label = nullptr;
 }
 
 KToolBarLabelAction::~KToolBarLabelAction() = default;
 
 void KToolBarLabelAction::setBuddy(QAction *buddy)
 {
     d->buddy = buddy;
 
     QList<QLabel *> labels;
     const auto associatedWidgets = this->associatedWidgets();
     for (QWidget *widget : associatedWidgets) {
         if (QToolBar *toolBar = qobject_cast<QToolBar *>(widget)) {
             if (QLabel *label = qobject_cast<QLabel *>(toolBar->widgetForAction(this))) {
                 labels.append(label);
             }
         }
     }
     const auto buddysAssociatedWidgets = buddy->associatedWidgets();
     for (QWidget *widget : buddysAssociatedWidgets) {
         if (QToolBar *toolBar = qobject_cast<QToolBar *>(widget)) {
             QWidget *newBuddy = toolBar->widgetForAction(buddy);
             for (QLabel *label : std::as_const(labels)) {
                 label->setBuddy(newBuddy);
             }
             return;
         }
     }
 }
 
 QAction *KToolBarLabelAction::buddy() const
 {
     return d->buddy;
 }
 
 bool KToolBarLabelAction::event(QEvent *event)
 {
     if (event->type() == QEvent::ActionChanged) {
         if (d->label && text() != d->label->text()) {
             Q_EMIT textChanged(text());
             d->label->setText(text());
         }
     }
 
     return QWidgetAction::event(event);
 }
 
 bool KToolBarLabelAction::eventFilter(QObject *watched, QEvent *event)
 {
     if (d->label && d->buddy && event->type() == QEvent::PolishRequest && watched == d->label) {
         const auto buddysAssociatedWidgets = d->buddy->associatedWidgets();
         for (QWidget *widget : buddysAssociatedWidgets) {
             if (QToolBar *toolBar = qobject_cast<QToolBar *>(widget)) {
                 QWidget *newBuddy = toolBar->widgetForAction(d->buddy);
                 d->label->setBuddy(newBuddy);
             }
         }
     }
 
     return QWidgetAction::eventFilter(watched, event);
 }
 
 QWidget *KToolBarLabelAction::createWidget(QWidget *_parent)
 {
     QToolBar *parent = qobject_cast<QToolBar *>(_parent);
     if (!parent) {
         return QWidgetAction::createWidget(_parent);
     }
     if (!d->label) {
         d->label = new QLabel(parent);
 
         // These lines were copied from Konqueror's KonqDraggableLabel class in
         // konq_misc.cc
         d->label->setBackgroundRole(QPalette::Button);
         d->label->setAlignment((QApplication::isRightToLeft() ? Qt::AlignRight : Qt::AlignLeft) | Qt::AlignVCenter);
         d->label->adjustSize();
         d->label->setText(text());
         d->label->installEventFilter(this);
     }
 
     return d->label;
 }
 
 #include "moc_ktoolbarlabelaction.cpp"