/* * Copyright 2007 by Dan Meltzer * Copyright (C) 2008 by Alexis Ménard * * This program 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, or * (at your option) any later version. * * This program 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 General Public License for more details * * You should have received a copy of the GNU Library General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "tooltip_p.h" #include "windowpreview_p.h" #include #include #include #include #include #include #include #include #include #include #ifdef Q_WS_X11 #include #include #endif #include #include #include #include #include #include #include #include namespace Plasma { class TipTextWidget : public QWidget { public: TipTextWidget(ToolTip *parent) : QWidget(parent), m_toolTip(parent), m_document(new QTextDocument(this)) { //d->text->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum); // QTextOption op; // op.setWrapMode(QTextOption::WordWrap); // m_document->setDefaultTextOption(op); } void setStyleSheet(const QString &css) { m_document->setDefaultStyleSheet(css); } void setContent(const ToolTipContent &data) { QString html; if (!data.mainText().isEmpty()) { html.append("" + data.mainText() + ""); if (!data.subText().isEmpty()) { html.append("
"); } } html.append(data.subText()); m_anchor.clear(); m_document->clear(); data.registerResources(m_document); m_document->setHtml("

" + html + "

"); m_document->adjustSize(); m_haloRects.clear(); QTextLayout *layout = m_document->begin().layout(); //layout->setPosition(QPointF(textRect.x(), textBoundingRect->y())); QTextLine line; for (int i = 0; i < layout->lineCount(); ++i) { line = layout->lineAt(i); // Add halo rect only when a non empty line is found if (line.naturalTextWidth()) { m_haloRects.append(line.naturalTextRect().translated(layout->position().toPoint()).toRect().translated(m_margin, m_margin)); } } update(); } QSize minimumSizeHint() const { return m_document->size().toSize() + QSize(m_margin, m_margin)*2; } QSize maximumSizeHint() const { return minimumSizeHint(); } void paintEvent(QPaintEvent *event) { QPainter p(this); if (Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor).value() < 128) { foreach (const QRectF &rect, m_haloRects) { Plasma::PaintUtils::drawHalo(&p, rect); } p.translate(m_margin, m_margin); } m_document->drawContents(&p, event->rect()); } void mousePressEvent(QMouseEvent *event) { QAbstractTextDocumentLayout *layout = m_document->documentLayout(); if (layout) { m_anchor = layout->anchorAt(event->pos()); } } void mouseReleaseEvent(QMouseEvent *event) { QAbstractTextDocumentLayout *layout = m_document->documentLayout(); if (layout) { QString anchor = layout->anchorAt(event->pos()); if (anchor == m_anchor) { m_toolTip->linkActivated(m_anchor, event); } m_anchor.clear(); } } private: ToolTip *m_toolTip; QTextDocument *m_document; QString m_anchor; QList m_haloRects; static const int m_margin = 6; }; class ToolTipPrivate { public: ToolTipPrivate() : text(0), imageLabel(0), preview(0), direction(Plasma::Up), autohide(true) { } TipTextWidget *text; QLabel *imageLabel; WindowPreview *preview; FrameSvg *background; QWeakPointer source; QPropertyAnimation *animation; Plasma::Direction direction; bool autohide; }; ToolTip::ToolTip(QWidget *parent) : QWidget(parent), d(new ToolTipPrivate()) { setAttribute(Qt::WA_TranslucentBackground); setWindowFlags(Qt::ToolTip); d->preview = new WindowPreview(this); d->text = new TipTextWidget(this); d->imageLabel = new QLabel(this); d->imageLabel->setAlignment(Qt::AlignTop | Qt::AlignLeft); d->animation = new QPropertyAnimation(this, "pos", this); d->animation->setEasingCurve(QEasingCurve::InOutQuad); d->animation->setDuration(250); d->background = new FrameSvg(this); d->background->setImagePath("widgets/tooltip"); d->background->setEnabledBorders(FrameSvg::AllBorders); updateTheme(); connect(d->background, SIGNAL(repaintNeeded()), this, SLOT(updateTheme())); connect(d->preview, SIGNAL(windowPreviewClicked(WId,Qt::MouseButtons,Qt::KeyboardModifiers,QPoint)), this, SIGNAL(activateWindowByWId(WId,Qt::MouseButtons,Qt::KeyboardModifiers,QPoint))); QHBoxLayout *previewHBoxLayout = new QHBoxLayout; previewHBoxLayout->addWidget(d->preview); QHBoxLayout *iconTextHBoxLayout = new QHBoxLayout; iconTextHBoxLayout->addWidget(d->imageLabel); iconTextHBoxLayout->setAlignment(d->imageLabel, Qt::AlignCenter); iconTextHBoxLayout->addWidget(d->text); iconTextHBoxLayout->setAlignment(d->text, Qt::AlignLeft | Qt::AlignVCenter); iconTextHBoxLayout->setStretchFactor(d->text, 1); QVBoxLayout *mainLayout = new QVBoxLayout; mainLayout->addLayout(previewHBoxLayout); mainLayout->addLayout(iconTextHBoxLayout); setLayout(mainLayout); } ToolTip::~ToolTip() { delete d; } void ToolTip::showEvent(QShowEvent *e) { checkSize(); QWidget::showEvent(e); d->preview->setInfo(); WindowEffects::overrideShadow(winId(), true); } void ToolTip::hideEvent(QHideEvent *e) { QWidget::hideEvent(e); d->animation->stop(); QObject *source = d->source.data(); if (source && source->metaObject()->indexOfMethod("toolTipHidden()") != -1) { QMetaObject::invokeMethod(source, "toolTipHidden"); } WindowEffects::highlightWindows(winId(), QList()); } void ToolTip::mouseReleaseEvent(QMouseEvent *event) { if (rect().contains(event->pos()) && (!d->preview || !d->preview->geometry().contains(event->pos()))) { hide(); } } void ToolTip::enterEvent(QEvent *) { emit hovered(true); } void ToolTip::leaveEvent(QEvent *) { emit hovered(false); } void ToolTip::checkSize() { //FIXME: layout bugs even on qlayouts? oh, please, no. d->text->setMinimumSize(0, 0); d->text->setMaximumSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX); d->text->setMinimumSize(d->text->minimumSizeHint()); d->text->setMaximumSize(d->text->maximumSizeHint()); adjustSize(); } void ToolTip::adjustPosition(const QSize &previous, const QSize ¤t) { if (previous != current) { //offsets to stop tooltips from jumping when they resize int deltaX = 0; int deltaY = 0; if (d->direction == Plasma::Up) { /* kDebug() << "resizing from" << current << "to" << hint << "and moving from" << pos() << "to" << x() << y() + (current.height() - hint.height()) << current.height() - hint.height(); */ deltaY = previous.height() - current.height(); } else if (d->direction == Plasma::Left) { /* kDebug() << "vertical resizing from" << current << "to" << hint << "and moving from" << pos() << "to" << x() + (current.width() - hint.width()) << y() << current.width() - hint.width(); */ deltaX = previous.width() - current.width(); } // resize then move if we're getting smaller, vice versa when getting bigger // this prevents overlap with the item in the smaller case, and a repaint of // the tipped item when getting bigger move(x() + deltaX, y() + deltaY); } } void ToolTip::setContent(QObject *tipper, const ToolTipContent &data) { //reset our size d->text->setContent(data); d->imageLabel->setPixmap(data.image()); if (data.highlightWindows() && (data.windowsToPreview().size() > 1 || data.windowToPreview() != 0)) { WindowEffects::highlightWindows(winId(), QList() << winId() << data.windowsToPreview()); } if (data.windowsToPreview().size() > 1) { d->preview->setWindowIds(data.windowsToPreview()); } else { QListids; ids.append(data.windowToPreview()); d->preview->setWindowIds(ids); } d->preview->setHighlightWindows(data.highlightWindows()); d->autohide = data.autohide(); d->source = tipper; if (isVisible()) { d->preview->setInfo(); //kDebug() << "about to check size"; checkSize(); } } void ToolTip::prepareShowing() { if (!d->preview->isEmpty()) { // show/hide the preview area d->preview->show(); } else { d->preview->hide(); } layout()->activate(); d->preview->setInfo(); //kDebug() << "about to check size"; checkSize(); } void ToolTip::moveTo(const QPoint &to) { if (!isVisible() || !(KGlobalSettings::graphicEffectsLevel() & KGlobalSettings::SimpleAnimationEffects)) { move(to); return; } d->animation->stop(); d->animation->setEndValue(to); d->animation->start(); } void ToolTip::resizeEvent(QResizeEvent *e) { QWidget::resizeEvent(e); d->background->resizeFrame(size()); if (Plasma::Theme::defaultTheme()->windowTranslucencyEnabled()) { WindowEffects::enableBlurBehind(winId(), true, d->background->mask()); clearMask(); } else { setMask(d->background->mask()); } d->preview->setInfo(); if (isVisible()) { adjustPosition(e->oldSize(), e->size()); } } void ToolTip::paintEvent(QPaintEvent *e) { QPainter painter(this); painter.setRenderHint(QPainter::Antialiasing); painter.setClipRect(e->rect()); painter.setCompositionMode(QPainter::CompositionMode_Source); painter.fillRect(rect(), Qt::transparent); d->background->paintFrame(&painter); } bool ToolTip::autohide() const { return d->autohide; } void ToolTip::setDirection(Plasma::Direction direction) { d->direction = direction; } void ToolTip::linkActivated(const QString &anchor, QMouseEvent *event) { emit linkActivated(anchor, event->buttons(), event->modifiers(), event->globalPos()); } void ToolTip::updateTheme() { const int topHeight = d->background->marginSize(Plasma::TopMargin); const int leftWidth = d->background->marginSize(Plasma::LeftMargin); const int rightWidth = d->background->marginSize(Plasma::RightMargin); const int bottomHeight = d->background->marginSize(Plasma::BottomMargin); setContentsMargins(leftWidth, topHeight, rightWidth, bottomHeight); // Make the tooltip use Plasma's colorscheme QColor textColor = Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor); QPalette plasmaPalette = QPalette(); plasmaPalette.setColor(QPalette::Window, Plasma::Theme::defaultTheme()->color(Plasma::Theme::BackgroundColor)); plasmaPalette.setColor(QPalette::WindowText, textColor); setAutoFillBackground(true); setPalette(plasmaPalette); d->text->setStyleSheet(QString("p { color: %1; }").arg(textColor.name())); update(); } } // namespace Plasma #include "tooltip_p.moc"