| 1 | /* |
|---|---|
| 2 | This file is part of the KDE libraries |
| 3 | SPDX-FileCopyrightText: 2004 Felix Berger <felixberger@beldesign.de> |
| 4 | |
| 5 | SPDX-License-Identifier: LGPL-2.0-only |
| 6 | */ |
| 7 | |
| 8 | #include "ktoolbarlabelaction.h" |
| 9 | |
| 10 | #include <QApplication> |
| 11 | #include <QLabel> |
| 12 | #include <QPointer> |
| 13 | #include <QToolBar> |
| 14 | |
| 15 | class KToolBarLabelActionPrivate |
| 16 | { |
| 17 | public: |
| 18 | QPointer<QAction> buddy; |
| 19 | QPointer<QLabel> label; |
| 20 | }; |
| 21 | |
| 22 | KToolBarLabelAction::KToolBarLabelAction(const QString &text, QObject *parent) |
| 23 | : QWidgetAction(parent) |
| 24 | , d(new KToolBarLabelActionPrivate) |
| 25 | { |
| 26 | setText(text); |
| 27 | d->label = nullptr; |
| 28 | } |
| 29 | |
| 30 | KToolBarLabelAction::KToolBarLabelAction(QAction *buddy, const QString &text, QObject *parent) |
| 31 | : QWidgetAction(parent) |
| 32 | , d(new KToolBarLabelActionPrivate) |
| 33 | { |
| 34 | setBuddy(buddy); |
| 35 | setText(text); |
| 36 | |
| 37 | d->label = nullptr; |
| 38 | } |
| 39 | |
| 40 | KToolBarLabelAction::~KToolBarLabelAction() = default; |
| 41 | |
| 42 | void KToolBarLabelAction::setBuddy(QAction *buddy) |
| 43 | { |
| 44 | d->buddy = buddy; |
| 45 | |
| 46 | QList<QLabel *> labels; |
| 47 | const auto associatedWidgets = this->associatedObjects(); |
| 48 | for (auto *widget : associatedWidgets) { |
| 49 | if (QToolBar *toolBar = qobject_cast<QToolBar *>(object: widget)) { |
| 50 | if (QLabel *label = qobject_cast<QLabel *>(object: toolBar->widgetForAction(action: this))) { |
| 51 | labels.append(t: label); |
| 52 | } |
| 53 | } |
| 54 | } |
| 55 | const auto buddysAssociatedWidgets = buddy->associatedObjects(); |
| 56 | for (auto *widget : buddysAssociatedWidgets) { |
| 57 | if (QToolBar *toolBar = qobject_cast<QToolBar *>(object: widget)) { |
| 58 | QWidget *newBuddy = toolBar->widgetForAction(action: buddy); |
| 59 | for (QLabel *label : std::as_const(t&: labels)) { |
| 60 | label->setBuddy(newBuddy); |
| 61 | } |
| 62 | return; |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | QAction *KToolBarLabelAction::buddy() const |
| 68 | { |
| 69 | return d->buddy; |
| 70 | } |
| 71 | |
| 72 | bool KToolBarLabelAction::event(QEvent *event) |
| 73 | { |
| 74 | if (event->type() == QEvent::ActionChanged) { |
| 75 | if (d->label && text() != d->label->text()) { |
| 76 | Q_EMIT textChanged(newText: text()); |
| 77 | d->label->setText(text()); |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | return QWidgetAction::event(event); |
| 82 | } |
| 83 | |
| 84 | bool KToolBarLabelAction::eventFilter(QObject *watched, QEvent *event) |
| 85 | { |
| 86 | if (d->label && d->buddy && event->type() == QEvent::PolishRequest && watched == d->label) { |
| 87 | const auto buddysAssociatedWidgets = d->buddy->associatedObjects(); |
| 88 | for (auto *widget : buddysAssociatedWidgets) { |
| 89 | if (QToolBar *toolBar = qobject_cast<QToolBar *>(object: widget)) { |
| 90 | QWidget *newBuddy = toolBar->widgetForAction(action: d->buddy); |
| 91 | d->label->setBuddy(newBuddy); |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | return QWidgetAction::eventFilter(watched, event); |
| 97 | } |
| 98 | |
| 99 | QWidget *KToolBarLabelAction::createWidget(QWidget *_parent) |
| 100 | { |
| 101 | QToolBar *parent = qobject_cast<QToolBar *>(object: _parent); |
| 102 | if (!parent) { |
| 103 | return QWidgetAction::createWidget(parent: _parent); |
| 104 | } |
| 105 | if (!d->label) { |
| 106 | d->label = new QLabel(parent); |
| 107 | |
| 108 | // These lines were copied from Konqueror's KonqDraggableLabel class in |
| 109 | // konq_misc.cc |
| 110 | d->label->setBackgroundRole(QPalette::Button); |
| 111 | d->label->setAlignment((QApplication::isRightToLeft() ? Qt::AlignRight : Qt::AlignLeft) | Qt::AlignVCenter); |
| 112 | d->label->adjustSize(); |
| 113 | d->label->setText(text()); |
| 114 | d->label->installEventFilter(filterObj: this); |
| 115 | } |
| 116 | |
| 117 | return d->label; |
| 118 | } |
| 119 | |
| 120 | #include "moc_ktoolbarlabelaction.cpp" |
| 121 |