File indexing completed on 2024-04-14 14:20:24

 /* This file is part of the KDE libraries
     Copyright (C) 2000 Carsten Pfeiffer <pfeiffer@kde.org>
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Library General Public License for more details.
 
     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB.  If not, write to
     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA 02110-1301, USA.
 */
 
 #include "kpushbutton.h"
 #include <QStyleOptionToolButton>
 #include <QStylePainter>
 
 #include <QDrag>
 #include <QActionEvent>
 #include <QMenu>
 #include <QPointer>
 #include <QStyle>
 #include <QTimer>
 #include <QApplication>
 
 #include <kguiitem.h>
 
 #include <kauth/objectdecorator.h>
 
 class Q_DECL_HIDDEN KPushButton::KPushButtonPrivate
 {
 public:
     KPushButtonPrivate(KPushButton *_parent) : parent(_parent), m_dragEnabled(false), decorator(nullptr)
     {
     }
 
     KPushButton *parent;
 
     KStandardGuiItem::StandardItem itemType;
     QPointer<QMenu> delayedMenu;
     QTimer *delayedMenuTimer;
     bool m_dragEnabled;
     QPoint startPos;
     KAuth::ObjectDecorator *decorator;
 
     void slotPressedInternal();
     void slotClickedInternal();
     void authStatusChanged(KAuth::Action::AuthStatus status);
     void slotDelayedMenuTimeout();
 };
 
 void KPushButton::KPushButtonPrivate::slotPressedInternal()
 {
     if (!delayedMenu.isNull()) {
         if (delayedMenuTimer == nullptr) {
             delayedMenuTimer = new QTimer(parent);
             delayedMenuTimer->setSingleShot(true);
             connect(delayedMenuTimer, SIGNAL(timeout()), parent, SLOT(slotDelayedMenuTimeout()));
         }
         const int delay = parent->style()->styleHint(QStyle::SH_ToolButton_PopupDelay, nullptr, parent);
         delayedMenuTimer->start((delay <= 0) ? 150 : delay);
     }
 }
 
 void KPushButton::KPushButtonPrivate::slotClickedInternal()
 {
     if (delayedMenuTimer) {
         delayedMenuTimer->stop();
     }
 }
 
 void KPushButton::KPushButtonPrivate::slotDelayedMenuTimeout()
 {
     delayedMenuTimer->stop();
     if (!delayedMenu.isNull()) {
         parent->setMenu(delayedMenu);
         parent->showMenu();
         parent->setMenu(nullptr);
     }
 }
 
 KPushButton::KPushButton(QWidget *parent)
     : QPushButton(parent), d(new KPushButtonPrivate(this))
 {
     initWidget(KGuiItem(""));
 }
 
 KPushButton::KPushButton(const QString &text, QWidget *parent)
     : QPushButton(parent), d(new KPushButtonPrivate(this))
 {
     initWidget(KGuiItem(text));
 }
 
 KPushButton::KPushButton(const QIcon &icon, const QString &text,
                          QWidget *parent)
     : QPushButton(text, parent), d(new KPushButtonPrivate(this))
 {
     initWidget(KGuiItem(text, icon));
 }
 
 KPushButton::KPushButton(const KGuiItem &item, QWidget *parent)
     : QPushButton(parent), d(new KPushButtonPrivate(this))
 {
     initWidget(item);
 }
 
 KPushButton::~KPushButton()
 {
     delete d;
 }
 
 void KPushButton::initWidget(const KGuiItem &item)
 {
     d->decorator = new KAuth::ObjectDecorator(this);
     connect(d->decorator, SIGNAL(authorized(KAuth::Action)),
             this, SIGNAL(authorized(KAuth::Action)));
 
     d->itemType = (KStandardGuiItem::StandardItem) 0;
     d->delayedMenuTimer = nullptr;
 
     connect(this, SIGNAL(pressed()), this, SLOT(slotPressedInternal()));
     connect(this, SIGNAL(clicked()), this, SLOT(slotClickedInternal()));
     KGuiItem::assign(this, item);
 }
 
 bool KPushButton::isDragEnabled() const
 {
     return d->m_dragEnabled;
 }
 
 void KPushButton::setGuiItem(const KGuiItem &item)
 {
     KGuiItem::assign(this, item);
 }
 
 void KPushButton::setGuiItem(KStandardGuiItem::StandardItem item)
 {
     setGuiItem(KStandardGuiItem::guiItem(item));
     d->itemType = item;
 }
 
 KStandardGuiItem::StandardItem KPushButton::guiItem() const
 {
     return d->itemType;
 }
 
 void KPushButton::setText(const QString &text)
 {
     QPushButton::setText(text);
 }
 
 void KPushButton::setIcon(const QIcon &icon)
 {
     const bool useIcons = style()->styleHint(QStyle::SH_DialogButtonBox_ButtonsHaveIcons, nullptr, this);
     if (useIcons || text().isEmpty()) {
         QPushButton::setIcon(icon);
     } else {
         QPushButton::setIcon(QIcon());
     }
 }
 
 void KPushButton::setDragEnabled(bool enable)
 {
     d->m_dragEnabled = enable;
 }
 
 void KPushButton::mousePressEvent(QMouseEvent *e)
 {
     if (d->m_dragEnabled) {
         d->startPos = e->pos();
     }
     QPushButton::mousePressEvent(e);
 }
 
 void KPushButton::mouseMoveEvent(QMouseEvent *e)
 {
     if (!d->m_dragEnabled) {
         QPushButton::mouseMoveEvent(e);
         return;
     }
 
     if ((e->buttons() & Qt::LeftButton) &&
             (e->pos() - d->startPos).manhattanLength() >
             QApplication::startDragDistance()) {
         startDrag();
         setDown(false);
     }
 }
 
 QDrag *KPushButton::dragObject()
 {
     return nullptr;
 }
 
 void KPushButton::startDrag()
 {
     QDrag *d = dragObject();
     if (d) {
         d->start();
     }
 }
 
 void KPushButton::setDelayedMenu(QMenu *delayedMenu)
 {
     d->delayedMenu = delayedMenu;
 }
 
 QMenu *KPushButton::delayedMenu()
 {
     return d->delayedMenu;
 }
 
 KAuth::Action KPushButton::authAction() const
 {
     return d->decorator->authAction();
 }
 
 void KPushButton::setAuthAction(const QString &actionName)
 {
     d->decorator->setAuthAction(actionName);
 }
 
 void KPushButton::setAuthAction(const KAuth::Action &action)
 {
     d->decorator->setAuthAction(action);
 }
 
 QSize KPushButton::sizeHint() const
 {
     const bool tempSetMenu = !menu() && d->delayedMenu;
     if (tempSetMenu) {
         const_cast<KPushButton *>(this)->setMenu(d->delayedMenu);
     }
     const QSize sz = QPushButton::sizeHint();
     if (tempSetMenu) {
         const_cast<KPushButton *>(this)->setMenu(nullptr);
     }
     return sz;
 }
 
 void KPushButton::paintEvent(QPaintEvent *)
 {
     QStylePainter p(this);
     QStyleOptionButton option;
     initStyleOption(&option);
 
     if (d->delayedMenu) {
         option.features |= QStyleOptionButton::HasMenu;
     }
 
     p.drawControl(QStyle::CE_PushButton, option);
 }
 
 #include "moc_kpushbutton.cpp"