Merged very early alpha-version of Dolphin 2.0

[dolphin.git] / src / views / tooltips / tooltipmanager.cpp

diff --git a/src/views/tooltips/tooltipmanager.cpp b/src/views/tooltips/tooltipmanager.cpp
index 7ef71a5d07452126de5d4828891bb693cc1c8f88..e532bee82c9299ca1a0564d6a9e17bc940c72805 100644 (file)
--- a/src/views/tooltips/tooltipmanager.cpp
+++ b/src/views/tooltips/tooltipmanager.cpp
@@ -22,46 +22,32 @@
 #include "filemetadatatooltip.h"
 #include <KIcon>
 #include <KIO/PreviewJob>
 #include "filemetadatatooltip.h"
 #include <KIcon>
 #include <KIO/PreviewJob>

+#include <KSharedConfig>

 
 #include <QApplication>
 #include <QDesktopWidget>
 
 #include <QApplication>
 #include <QDesktopWidget>

+#include <QLayout>

 #include <QScrollArea>
 #include <QScrollBar>
 #include <QTimer>
 
 #include <QScrollArea>
 #include <QScrollBar>
 #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),
     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_showToolTipTimer(0),
     m_contentRetrievalTimer(0),
     m_fileMetaDataToolTip(0),
     m_toolTipRequested(false),
     m_metaDataRequested(false),

+    m_appliedWaitCursor(false),

     m_item(),
     m_itemRect()
 {
     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.
-    }
-    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()));
+    //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);
 
     // Initialize timers
     m_showToolTipTimer = new QTimer(this);


@@ -79,13 +65,14 @@ ToolTipManager::ToolTipManager(QAbstractItemView* parent,
     // 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.
     // 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)),
+    /*connect(parent->horizontalScrollBar(), SIGNAL(valueChanged(int)),

             this, SLOT(hideToolTip()));
     connect(parent->verticalScrollBar(), SIGNAL(valueChanged(int)),
             this, SLOT(hideToolTip()));
     connect(parent->verticalScrollBar(), SIGNAL(valueChanged(int)),

-            this, SLOT(hideToolTip()));
+            this, SLOT(hideToolTip()));*/

 
 

-    m_view->viewport()->installEventFilter(this);
-    m_view->installEventFilter(this);
+    Q_ASSERT(m_view);
+    //m_view->viewport()->installEventFilter(this);
+    //m_view->installEventFilter(this);

 }
 
 ToolTipManager::~ToolTipManager()
 }
 
 ToolTipManager::~ToolTipManager()


@@ -94,20 +81,24 @@ ToolTipManager::~ToolTipManager()
 
 void ToolTipManager::hideToolTip()
 {
 
 void ToolTipManager::hideToolTip()
 {

-    QApplication::restoreOverrideCursor();
+    if (m_appliedWaitCursor) {
+        QApplication::restoreOverrideCursor();
+        m_appliedWaitCursor = false;
+    }

 
     m_toolTipRequested = false;
     m_metaDataRequested = false;
     m_showToolTipTimer->stop();
     m_contentRetrievalTimer->stop();
 
 
     m_toolTipRequested = false;
     m_metaDataRequested = false;
     m_showToolTipTimer->stop();
     m_contentRetrievalTimer->stop();
 

-    m_fileMetaDataToolTip->setItems(KFileItemList());
-    m_fileMetaDataToolTip->hide();
+    delete m_fileMetaDataToolTip;
+    m_fileMetaDataToolTip = 0;

 }
 
 }
 

+

 bool ToolTipManager::eventFilter(QObject* watched, QEvent* event)
 {
 bool ToolTipManager::eventFilter(QObject* watched, QEvent* event)
 {

-    if (watched == m_view->viewport()) {
+    /*if (watched == m_view->viewport()) {

         switch (event->type()) {
         case QEvent::Leave:
         case QEvent::MouseButtonPress:
         switch (event->type()) {
         case QEvent::Leave:
         case QEvent::MouseButtonPress:


@@ -118,28 +109,34 @@ bool ToolTipManager::eventFilter(QObject* watched, QEvent* event)
         }
     } else if ((watched == m_view) && (event->type() == QEvent::KeyPress)) {
         hideToolTip();
         }
     } else if ((watched == m_view) && (event->type() == QEvent::KeyPress)) {
         hideToolTip();

-    }
+    }*/

 
     return QObject::eventFilter(watched, event);
 }
 
 void ToolTipManager::requestToolTip(const QModelIndex& index)
 {
 
     return QObject::eventFilter(watched, event);
 }
 
 void ToolTipManager::requestToolTip(const QModelIndex& index)
 {

+    Q_UNUSED(index);

     hideToolTip();
 
     // Only request a tooltip for the name column and when no selection or
     // drag & drop operation is done (indicated by the left mouse button)
     hideToolTip();
 
     // 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());
+    if (!(QApplication::mouseButtons() & Qt::LeftButton)) {
+        m_itemRect = QRect(); //m_view->visualRect(index);
+        const QPoint pos; // = m_view->viewport()->mapToGlobal(m_itemRect.topLeft());

         m_itemRect.moveTo(pos);
 
         m_itemRect.moveTo(pos);
 

-        const QModelIndex dirIndex = m_proxyModel->mapToSource(index);
-        m_item = m_dolphinModel->itemForIndex(dirIndex);
+        //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.
 
         // 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(m_view);
+        connect(m_fileMetaDataToolTip, SIGNAL(metaDataRequestFinished(KFileItemList)),
+                this, SLOT(slotMetaDataRequestFinished()));
+

         m_contentRetrievalTimer->start();
         m_showToolTipTimer->start();
         m_toolTipRequested = true;
         m_contentRetrievalTimer->start();
         m_showToolTipTimer->start();
         m_toolTipRequested = true;


@@ -155,10 +152,17 @@ void ToolTipManager::startContentRetrieval()
 
     m_fileMetaDataToolTip->setName(m_item.text());
 
 
     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_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());
+
+    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(gotPreview(const KFileItem&, const QPixmap&)),
             this, SLOT(setPreviewPix(const KFileItem&, const QPixmap&)));


@@ -205,6 +209,7 @@ void ToolTipManager::slotMetaDataRequestFinished()
     }
 
     m_metaDataRequested = false;
     }
 
     m_metaDataRequested = false;

+

     if (!m_showToolTipTimer->isActive()) {
         showToolTip();
     }
     if (!m_showToolTipTimer->isActive()) {
         showToolTip();
     }


@@ -213,14 +218,19 @@ void ToolTipManager::slotMetaDataRequestFinished()
 void ToolTipManager::showToolTip()
 {
     Q_ASSERT(m_toolTipRequested);
 void ToolTipManager::showToolTip()
 {
     Q_ASSERT(m_toolTipRequested);

-    QApplication::restoreOverrideCursor();
+    if (m_appliedWaitCursor) {
+        QApplication::restoreOverrideCursor();
+        m_appliedWaitCursor = false;
+    }

 
     if (QApplication::mouseButtons() & Qt::LeftButton) {
         return;
     }
 
     if (m_fileMetaDataToolTip->preview().isNull() || m_metaDataRequested) {
 
     if (QApplication::mouseButtons() & Qt::LeftButton) {
         return;
     }
 
     if (m_fileMetaDataToolTip->preview().isNull() || m_metaDataRequested) {

+        Q_ASSERT(!m_appliedWaitCursor);

         QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
         QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));

+        m_appliedWaitCursor = true;

         return;
     }
 
         return;
     }
 


@@ -245,35 +255,36 @@ void ToolTipManager::showToolTip()
     }
 
     // m_itemRect defines the area of the item, where the tooltip should be
     }
 
     // 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
     // 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 int margin = 3;
+    const bool hasRoomToLeft  = (m_itemRect.left()   - size.width()  - margin >= screen.left());
+    const bool hasRoomToRight = (m_itemRect.right()  + size.width()  + margin <= screen.right());
+    const bool hasRoomAbove   = (m_itemRect.top()    - size.height() - margin >= screen.top());
+    const bool hasRoomBelow   = (m_itemRect.bottom() + size.height() + margin <= screen.bottom());

     if (!hasRoomAbove && !hasRoomBelow && !hasRoomToLeft && !hasRoomToRight) {
         return;
     }
 
     int x, y;
     if (hasRoomBelow || hasRoomAbove) {
     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) {
         if (x + size.width() >= screen.right()) {
             x = screen.right() - size.width() + 1;
         }
         if (hasRoomBelow) {

-            y = m_itemRect.bottom() + 1;
+            y = m_itemRect.bottom() + margin;

         } else {
         } else {

-            y = m_itemRect.top() - size.height();
+            y = m_itemRect.top() - size.height() - margin;

         }
     } else {
         Q_ASSERT(hasRoomToLeft || hasRoomToRight);
         if (hasRoomToRight) {
         }
     } else {
         Q_ASSERT(hasRoomToLeft || hasRoomToRight);
         if (hasRoomToRight) {

-            x = m_itemRect.right() + 1;
+            x = m_itemRect.right() + margin;

         } else {
         } else {

-            x = m_itemRect.left() - size.width();
+            x = m_itemRect.left() - size.width() - 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.
         }
         // 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 +294,7 @@ void ToolTipManager::showToolTip()
     // Step #3 - Alter tooltip geometry
     m_fileMetaDataToolTip->setFixedSize(size);
     m_fileMetaDataToolTip->layout()->setSizeConstraint(QLayout::SetNoConstraint);
     // 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;
     m_fileMetaDataToolTip->show();
 
     m_toolTipRequested = false;