File indexing completed on 2024-04-28 03:59:17

 /*
     SPDX-FileCopyrightText: 2000 Peter Putzer <putzer@kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-or-later
 */
 
 #include "kurllabel.h"
 
 #include <QApplication>
 #include <QMouseEvent>
 #include <QPalette>
 #include <QTimer>
 
 class KUrlLabelPrivate
 {
 public:
     KUrlLabelPrivate(const QString &_url, KUrlLabel *_parent)
         : parent(_parent)
         , url(_url)
         , tipText(url)
         , linkColor(_parent->palette().color(QPalette::Active, QPalette::Link))
         , highlightedLinkColor(_parent->palette().color(QPalette::Active, QPalette::BrightText))
         , cursor(nullptr)
         , textUnderlined(true)
         , realUnderlined(true)
         , useTips(false)
         , useCursor(false)
         , glowEnabled(true)
         , floatEnabled(false)
         , timer(new QTimer(parent))
     {
         QObject::connect(timer, &QTimer::timeout, parent, [this]() {
             updateColor();
         });
     }
 
     void updateColor()
     {
         timer->stop();
 
         if (!(glowEnabled || floatEnabled) || !parent->rect().contains(parent->mapFromGlobal(QCursor::pos()))) {
             setLinkColor(linkColor);
         }
     }
 
     void setLinkColor(const QColor &color)
     {
         QPalette palette = parent->palette();
         palette.setColor(QPalette::WindowText, color);
         parent->setPalette(palette);
 
         parent->update();
     }
 
     KUrlLabel *parent;
 
     QString url;
     QString tipText;
     QColor linkColor;
     QColor highlightedLinkColor;
     QCursor *cursor;
     bool textUnderlined : 1;
     bool realUnderlined : 1;
     bool useTips : 1;
     bool useCursor : 1;
     bool glowEnabled : 1;
     bool floatEnabled : 1;
     QPixmap alternatePixmap;
     QPixmap realPixmap;
     QTimer *timer;
 };
 
 KUrlLabel::KUrlLabel(const QString &url, const QString &text, QWidget *parent)
     : QLabel(!text.isNull() ? text : url, parent)
     , d(new KUrlLabelPrivate(url, this))
 {
     setFont(font());
     setCursor(QCursor(Qt::PointingHandCursor));
     d->setLinkColor(d->linkColor);
 }
 
 KUrlLabel::KUrlLabel(QWidget *parent)
     : QLabel(parent)
     , d(new KUrlLabelPrivate(QString(), this))
 {
     setFont(font());
     setCursor(QCursor(Qt::PointingHandCursor));
     d->setLinkColor(d->linkColor);
 }
 
 KUrlLabel::~KUrlLabel() = default;
 
 void KUrlLabel::mouseReleaseEvent(QMouseEvent *event)
 {
     QLabel::mouseReleaseEvent(event);
 
     d->setLinkColor(d->highlightedLinkColor);
     d->timer->start(300);
 
     switch (event->button()) {
     case Qt::LeftButton:
         Q_EMIT leftClickedUrl();
         break;
 
     case Qt::MiddleButton:
         Q_EMIT middleClickedUrl();
         break;
 
     case Qt::RightButton:
         Q_EMIT rightClickedUrl();
         break;
 
     default:
         break;
     }
 }
 
 void KUrlLabel::setFont(const QFont &font)
 {
     QFont newFont = font;
     newFont.setUnderline(d->textUnderlined);
 
     QLabel::setFont(newFont);
 }
 
 void KUrlLabel::setUnderline(bool on)
 {
     d->textUnderlined = on;
 
     setFont(font());
 }
 
 void KUrlLabel::setUrl(const QString &url)
 {
     if (d->tipText == d->url) { // update the tip as well
         d->tipText = url;
         setUseTips(d->useTips);
     }
 
     d->url = url;
 }
 
 QString KUrlLabel::url() const
 {
     return d->url;
 }
 
 void KUrlLabel::setUseCursor(bool on, QCursor *cursor)
 {
     d->useCursor = on;
     d->cursor = cursor;
 
     if (on) {
         if (cursor) {
             setCursor(*cursor);
         } else {
             setCursor(QCursor(Qt::PointingHandCursor));
         }
     } else {
         unsetCursor();
     }
 }
 
 bool KUrlLabel::useCursor() const
 {
     return d->useCursor;
 }
 
 void KUrlLabel::setUseTips(bool on)
 {
     d->useTips = on;
 
     if (on) {
         setToolTip(d->tipText);
     } else {
         setToolTip(QString());
     }
 }
 
 void KUrlLabel::setTipText(const QString &tipText)
 {
     d->tipText = tipText;
 
     setUseTips(d->useTips);
 }
 
 bool KUrlLabel::useTips() const
 {
     return d->useTips;
 }
 
 QString KUrlLabel::tipText() const
 {
     return d->tipText;
 }
 
 void KUrlLabel::setHighlightedColor(const QColor &color)
 {
     d->linkColor = color;
 
     if (!d->timer->isActive()) {
         d->setLinkColor(color);
     }
 }
 
 void KUrlLabel::setHighlightedColor(const QString &color)
 {
     setHighlightedColor(QColor(color));
 }
 
 void KUrlLabel::setSelectedColor(const QColor &color)
 {
     d->highlightedLinkColor = color;
 
     if (d->timer->isActive()) {
         d->setLinkColor(color);
     }
 }
 
 void KUrlLabel::setSelectedColor(const QString &color)
 {
     setSelectedColor(QColor(color));
 }
 
 void KUrlLabel::setGlowEnabled(bool glowEnabled)
 {
     d->glowEnabled = glowEnabled;
 }
 
 void KUrlLabel::setFloatEnabled(bool floatEnabled)
 {
     d->floatEnabled = floatEnabled;
 }
 
 bool KUrlLabel::isGlowEnabled() const
 {
     return d->glowEnabled;
 }
 
 bool KUrlLabel::isFloatEnabled() const
 {
     return d->floatEnabled;
 }
 
 void KUrlLabel::setAlternatePixmap(const QPixmap &pixmap)
 {
     d->alternatePixmap = pixmap;
 }
 
 const QPixmap *KUrlLabel::alternatePixmap() const
 {
     return &d->alternatePixmap;
 }
 
 void KUrlLabel::enterEvent(QEnterEvent *event)
 {
     QLabel::enterEvent(event);
 
     if (!d->alternatePixmap.isNull()) {
         const auto currentPixmap = pixmap(Qt::ReturnByValue);
         if (!currentPixmap.isNull()) {
             d->realPixmap = currentPixmap;
             setPixmap(d->alternatePixmap);
         }
     }
 
     if (d->glowEnabled || d->floatEnabled) {
         d->timer->stop();
 
         d->setLinkColor(d->highlightedLinkColor);
 
         d->realUnderlined = d->textUnderlined;
 
         if (d->floatEnabled) {
             setUnderline(true);
         }
     }
     Q_EMIT enteredUrl();
 }
 
 void KUrlLabel::leaveEvent(QEvent *event)
 {
     QLabel::leaveEvent(event);
 
     if (!d->alternatePixmap.isNull() && !pixmap(Qt::ReturnByValue).isNull()) {
         setPixmap(d->realPixmap);
     }
 
     if ((d->glowEnabled || d->floatEnabled) && !d->timer->isActive()) {
         d->setLinkColor(d->linkColor);
     }
 
     setUnderline(d->realUnderlined);
     Q_EMIT leftUrl();
 }
 
 bool KUrlLabel::event(QEvent *event)
 {
     if (event->type() == QEvent::PaletteChange) {
         // Use parentWidget() unless you are a toplevel widget, then try qAapp
         QPalette palette = parentWidget() ? parentWidget()->palette() : qApp->palette();
 
         palette.setBrush(QPalette::Base, palette.brush(QPalette::Normal, QPalette::Window));
         palette.setColor(QPalette::WindowText, this->palette().color(QPalette::Active, QPalette::WindowText));
         setPalette(palette);
 
         d->linkColor = palette.color(QPalette::Active, QPalette::Link);
         d->updateColor();
 
         return true;
     } else {
         return QLabel::event(event);
     }
 }
 
 #include "moc_kurllabel.cpp"