#include <QApplication>
#include <QDesktopWidget>
+#include <QLayout>
#include <QScrollArea>
#include <QScrollBar>
+#include <QStyle>
#include <QTimer>
-#include <views/dolphinmodel.h>
-#include <views/dolphinsortfilterproxymodel.h>
-
-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()),
- this, SLOT(slotMetaDataRequestFinished()));
-
- m_dolphinModel = static_cast<DolphinModel*>(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);
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;
+ }
- // 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);
+ m_toolTipRequested = false;
+ m_metaDataRequested = false;
+ m_showToolTipTimer->stop();
+ m_contentRetrievalTimer->stop();
+
+ if (m_fileMetaDataToolTip) {
+ m_fileMetaDataToolTip->hide();
+ delete m_fileMetaDataToolTip;
+ m_fileMetaDataToolTip = 0;
}
}
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();
+
+ // Request a preview of the item
+ m_fileMetaDataToolTip->setPreview(QPixmap());
- KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << m_item, 256, 256);
+ KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << m_item, QSize(256, 256));
- connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
- this, SLOT(setPreviewPix(const KFileItem&, const QPixmap&)));
- connect(job, SIGNAL(failed(const KFileItem&)),
+ connect(job, SIGNAL(gotPreview(KFileItem,QPixmap)),
+ this, SLOT(setPreviewPix(KFileItem,QPixmap)));
+ connect(job, SIGNAL(failed(KFileItem)),
this, SLOT(previewFailed()));
}
}
m_metaDataRequested = false;
+
if (!m_showToolTipTimer->isActive()) {
showToolTip();
}
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;
}
}
// 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.
// 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;
projects / dolphin.git / blobdiff