X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/5df0aafe228cabb7c48431b09faf641c36fac646..9ef4b489c043a1bdfdb2931959f58e366862fe35:/src/views/tooltips/tooltipmanager.cpp diff --git a/src/views/tooltips/tooltipmanager.cpp b/src/views/tooltips/tooltipmanager.cpp index 76d8882cc..3c262b749 100644 --- a/src/views/tooltips/tooltipmanager.cpp +++ b/src/views/tooltips/tooltipmanager.cpp @@ -25,45 +25,28 @@ #include #include +#include #include #include +#include #include -#include -#include - -ToolTipManager::ToolTipManager(QAbstractItemView* parent, - DolphinSortFilterProxyModel* model) : +ToolTipManager::ToolTipManager(QWidget* parent) : QObject(parent), - m_view(parent), - m_dolphinModel(0), - m_proxyModel(model), m_showToolTipTimer(0), m_contentRetrievalTimer(0), m_fileMetaDataToolTip(0), m_toolTipRequested(false), m_metaDataRequested(false), + m_appliedWaitCursor(false), + m_margin(4), m_item(), m_itemRect() { - static FileMetaDataToolTip* sharedToolTip = 0; - if (sharedToolTip == 0) { - sharedToolTip = new FileMetaDataToolTip(); - // TODO: Using K_GLOBAL_STATIC would be preferable to maintain the - // instance, but the cleanup of KFileMetaDataWidget at this stage does - // not work. + if (parent) { + m_margin = qMax(m_margin, parent->style()->pixelMetric(QStyle::PM_ToolTipLabelFrameWidth)); } - m_fileMetaDataToolTip = sharedToolTip; - connect(m_fileMetaDataToolTip, SIGNAL(metaDataRequestFinished(KFileItemList)), - this, SLOT(slotMetaDataRequestFinished())); - - m_dolphinModel = static_cast(m_proxyModel->sourceModel()); - connect(parent, SIGNAL(entered(const QModelIndex&)), - this, SLOT(requestToolTip(const QModelIndex&))); - connect(parent, SIGNAL(viewportEntered()), - this, SLOT(hideToolTip())); - - // Initialize timers + m_showToolTipTimer = new QTimer(this); m_showToolTipTimer->setSingleShot(true); m_showToolTipTimer->setInterval(500); @@ -75,75 +58,53 @@ ToolTipManager::ToolTipManager(QAbstractItemView* parent, connect(m_contentRetrievalTimer, SIGNAL(timeout()), this, SLOT(startContentRetrieval())); Q_ASSERT(m_contentRetrievalTimer->interval() < m_showToolTipTimer->interval()); - - // When the mousewheel is used, the items don't get a hovered indication - // (Qt-issue #200665). To assure that the tooltip still gets hidden, - // the scrollbars are observed. - connect(parent->horizontalScrollBar(), SIGNAL(valueChanged(int)), - this, SLOT(hideToolTip())); - connect(parent->verticalScrollBar(), SIGNAL(valueChanged(int)), - this, SLOT(hideToolTip())); - - m_view->viewport()->installEventFilter(this); - m_view->installEventFilter(this); } ToolTipManager::~ToolTipManager() { + delete m_fileMetaDataToolTip; + m_fileMetaDataToolTip = 0; } -void ToolTipManager::hideToolTip() +void ToolTipManager::showToolTip(const KFileItem& item, const QRectF& itemRect) { - QApplication::restoreOverrideCursor(); + hideToolTip(); - m_toolTipRequested = false; - m_metaDataRequested = false; - m_showToolTipTimer->stop(); - m_contentRetrievalTimer->stop(); + m_itemRect = itemRect.toRect(); - m_fileMetaDataToolTip->setItems(KFileItemList()); - m_fileMetaDataToolTip->hide(); -} + m_itemRect.adjust(-m_margin, -m_margin, m_margin, m_margin); + m_item = item; -bool ToolTipManager::eventFilter(QObject* watched, QEvent* event) -{ - if (watched == m_view->viewport()) { - switch (event->type()) { - case QEvent::Leave: - case QEvent::MouseButtonPress: - hideToolTip(); - break; - default: - break; - } - } else if ((watched == m_view) && (event->type() == QEvent::KeyPress)) { - hideToolTip(); - } + // Only start the retrieving of the content, when the mouse has been over this + // item for 200 milliseconds. This prevents a lot of useless preview jobs and + // meta data retrieval, when passing rapidly over a lot of items. + Q_ASSERT(!m_fileMetaDataToolTip); + m_fileMetaDataToolTip = new FileMetaDataToolTip(); + connect(m_fileMetaDataToolTip, SIGNAL(metaDataRequestFinished(KFileItemList)), + this, SLOT(slotMetaDataRequestFinished())); - return QObject::eventFilter(watched, event); + m_contentRetrievalTimer->start(); + m_showToolTipTimer->start(); + m_toolTipRequested = true; + Q_ASSERT(!m_metaDataRequested); } -void ToolTipManager::requestToolTip(const QModelIndex& index) +void ToolTipManager::hideToolTip() { - hideToolTip(); + if (m_appliedWaitCursor) { + QApplication::restoreOverrideCursor(); + m_appliedWaitCursor = false; + } + + m_toolTipRequested = false; + m_metaDataRequested = false; + m_showToolTipTimer->stop(); + m_contentRetrievalTimer->stop(); - // Only request a tooltip for the name column and when no selection or - // drag & drop operation is done (indicated by the left mouse button) - if ((index.column() == DolphinModel::Name) && !(QApplication::mouseButtons() & Qt::LeftButton)) { - m_itemRect = m_view->visualRect(index); - const QPoint pos = m_view->viewport()->mapToGlobal(m_itemRect.topLeft()); - m_itemRect.moveTo(pos); - - const QModelIndex dirIndex = m_proxyModel->mapToSource(index); - m_item = m_dolphinModel->itemForIndex(dirIndex); - - // Only start the retrieving of the content, when the mouse has been over this - // item for 200 milliseconds. This prevents a lot of useless preview jobs and - // meta data retrieval, when passing rapidly over a lot of items. - m_contentRetrievalTimer->start(); - m_showToolTipTimer->start(); - m_toolTipRequested = true; - Q_ASSERT(!m_metaDataRequested); + if (m_fileMetaDataToolTip) { + m_fileMetaDataToolTip->hide(); + delete m_fileMetaDataToolTip; + m_fileMetaDataToolTip = 0; } } @@ -155,14 +116,21 @@ void ToolTipManager::startContentRetrieval() m_fileMetaDataToolTip->setName(m_item.text()); + // Request the retrieval of meta-data. The slot + // slotMetaDataRequestFinished() is invoked after the + // meta-data have been received. m_metaDataRequested = true; m_fileMetaDataToolTip->setItems(KFileItemList() << m_item); + m_fileMetaDataToolTip->adjustSize(); - KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << m_item, 256, 256); + // Request a preview of the item + m_fileMetaDataToolTip->setPreview(QPixmap()); - connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)), - this, SLOT(setPreviewPix(const KFileItem&, const QPixmap&))); - connect(job, SIGNAL(failed(const KFileItem&)), + KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << m_item, QSize(256, 256)); + + connect(job, SIGNAL(gotPreview(KFileItem,QPixmap)), + this, SLOT(setPreviewPix(KFileItem,QPixmap))); + connect(job, SIGNAL(failed(KFileItem)), this, SLOT(previewFailed())); } @@ -205,6 +173,7 @@ void ToolTipManager::slotMetaDataRequestFinished() } m_metaDataRequested = false; + if (!m_showToolTipTimer->isActive()) { showToolTip(); } @@ -213,14 +182,15 @@ void ToolTipManager::slotMetaDataRequestFinished() void ToolTipManager::showToolTip() { Q_ASSERT(m_toolTipRequested); - QApplication::restoreOverrideCursor(); - - if (QApplication::mouseButtons() & Qt::LeftButton) { - return; + if (m_appliedWaitCursor) { + QApplication::restoreOverrideCursor(); + m_appliedWaitCursor = false; } if (m_fileMetaDataToolTip->preview().isNull() || m_metaDataRequested) { + Q_ASSERT(!m_appliedWaitCursor); QApplication::setOverrideCursor(QCursor(Qt::WaitCursor)); + m_appliedWaitCursor = true; return; } @@ -245,35 +215,35 @@ void ToolTipManager::showToolTip() } // m_itemRect defines the area of the item, where the tooltip should be - // shown. Per default the tooltip is shown in the bottom right corner. + // shown. Per default the tooltip is shown centered at the bottom. // It must be assured that: // - the content is fully visible // - the content is not drawn inside m_itemRect - const bool hasRoomToLeft = (m_itemRect.left() - size.width() >= screen.left()); - const bool hasRoomToRight = (m_itemRect.right() + size.width() <= screen.right()); - const bool hasRoomAbove = (m_itemRect.top() - size.height() >= screen.top()); - const bool hasRoomBelow = (m_itemRect.bottom() + size.height() <= screen.bottom()); + const bool hasRoomToLeft = (m_itemRect.left() - size.width() - m_margin >= screen.left()); + const bool hasRoomToRight = (m_itemRect.right() + size.width() + m_margin <= screen.right()); + const bool hasRoomAbove = (m_itemRect.top() - size.height() - m_margin >= screen.top()); + const bool hasRoomBelow = (m_itemRect.bottom() + size.height() + m_margin <= screen.bottom()); if (!hasRoomAbove && !hasRoomBelow && !hasRoomToLeft && !hasRoomToRight) { return; } int x, y; if (hasRoomBelow || hasRoomAbove) { - x = QCursor::pos().x() + 16; // TODO: use mouse pointer width instead of the magic value of 16 + x = qMax(screen.left(), m_itemRect.center().x() - size.width() / 2); if (x + size.width() >= screen.right()) { x = screen.right() - size.width() + 1; } if (hasRoomBelow) { - y = m_itemRect.bottom() + 1; + y = m_itemRect.bottom() + m_margin; } else { - y = m_itemRect.top() - size.height(); + y = m_itemRect.top() - size.height() - m_margin; } } else { Q_ASSERT(hasRoomToLeft || hasRoomToRight); if (hasRoomToRight) { - x = m_itemRect.right() + 1; + x = m_itemRect.right() + m_margin; } else { - x = m_itemRect.left() - size.width(); + x = m_itemRect.left() - size.width() - m_margin; } // Put the tooltip at the bottom of the screen. The x-coordinate has already // been adjusted, so that no overlapping with m_itemRect occurs. @@ -283,7 +253,7 @@ void ToolTipManager::showToolTip() // Step #3 - Alter tooltip geometry m_fileMetaDataToolTip->setFixedSize(size); m_fileMetaDataToolTip->layout()->setSizeConstraint(QLayout::SetNoConstraint); - m_fileMetaDataToolTip->setGeometry(x, y, size.width(), size.height()); + m_fileMetaDataToolTip->move(QPoint(x, y)); m_fileMetaDataToolTip->show(); m_toolTipRequested = false;