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

diff --git a/src/tooltips/tooltipmanager.cpp b/src/tooltips/tooltipmanager.cpp
index 489c6c2b69d5b657c08ebdcdaf4d3c6e9dd41501..bcb3d60cdfbb79e6f06cab657afdee8e74c00b02 100644 (file)
--- a/src/tooltips/tooltipmanager.cpp
+++ b/src/tooltips/tooltipmanager.cpp
@@ -19,25 +19,25 @@
 
 #include "tooltipmanager.h"
 
 
 #include "tooltipmanager.h"
 

-#include "dolphintooltip.h"

 #include "dolphinmodel.h"
 #include "dolphinsortfilterproxymodel.h"
 
 #include <kicon.h>
 #include "dolphinmodel.h"
 #include "dolphinsortfilterproxymodel.h"
 
 #include <kicon.h>

-#include <tooltips/ktooltip.h>

 #include <kio/previewjob.h>
 #include <kio/previewjob.h>

+#include <kseparator.h>
+
+#include "panels/information/kmetadatamodel.h"
+#include "panels/information/kmetadatawidget.h"
+#include "tooltips/ktooltip.h"

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

+#include <QHBoxLayout>
+#include <QLabel>
+#include <QScrollArea>

 #include <QScrollBar>
 #include <QTimer>
 #include <QScrollBar>
 #include <QTimer>

-#include <QToolTip>
-
-const int ICON_WIDTH = 128;
-const int ICON_HEIGHT = 128;
-const int PREVIEW_DELAY = 250;
-
-K_GLOBAL_STATIC(DolphinBalloonTooltipDelegate, g_delegate)
+#include <QVBoxLayout>

 
 ToolTipManager::ToolTipManager(QAbstractItemView* parent,
                                DolphinSortFilterProxyModel* model) :
 
 ToolTipManager::ToolTipManager(QAbstractItemView* parent,
                                DolphinSortFilterProxyModel* model) :


@@ -50,15 +50,10 @@ ToolTipManager::ToolTipManager(QAbstractItemView* parent,
     m_waitOnPreviewTimer(0),
     m_item(),
     m_itemRect(),
     m_waitOnPreviewTimer(0),
     m_item(),
     m_itemRect(),

-    m_preview(false),

     m_generatingPreview(false),
     m_generatingPreview(false),

-    m_previewIsLate(false),
-    m_previewPass(0),
-    m_emptyRenderedKToolTipItem(0),
-    m_pix()
+    m_hasDefaultIcon(false),
+    m_previewPixmap()

 {
 {

-    KToolTip::setToolTipDelegate(g_delegate);
-

     m_dolphinModel = static_cast<DolphinModel*>(m_proxyModel->sourceModel());
     connect(parent, SIGNAL(entered(const QModelIndex&)),
             this, SLOT(requestToolTip(const QModelIndex&)));
     m_dolphinModel = static_cast<DolphinModel*>(m_proxyModel->sourceModel());
     connect(parent, SIGNAL(entered(const QModelIndex&)),
             this, SLOT(requestToolTip(const QModelIndex&)));


@@ -89,6 +84,7 @@ ToolTipManager::ToolTipManager(QAbstractItemView* parent,
             this, SLOT(hideTip()));
 
     m_view->viewport()->installEventFilter(this);
             this, SLOT(hideTip()));
 
     m_view->viewport()->installEventFilter(this);

+    m_view->installEventFilter(this);

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


@@ -102,7 +98,16 @@ void ToolTipManager::hideTip()
 
 bool ToolTipManager::eventFilter(QObject* watched, QEvent* event)
 {
 
 bool ToolTipManager::eventFilter(QObject* watched, QEvent* event)
 {

-    if ((watched == m_view->viewport()) && (event->type() == QEvent::Leave)) {
+    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();
     }
 
         hideToolTip();
     }
 


@@ -127,9 +132,8 @@ void ToolTipManager::requestToolTip(const QModelIndex& index)
         // only start the previewJob when the mouse has been over this item for 200 milliseconds,
         // this prevents a lot of useless preview jobs when passing rapidly over a lot of items
         m_previewTimer->start(200);
         // only start the previewJob when the mouse has been over this item for 200 milliseconds,
         // this prevents a lot of useless preview jobs when passing rapidly over a lot of items
         m_previewTimer->start(200);

-        m_preview = false;
-        m_previewIsLate = false;
-        m_previewPass = 0;
+        m_previewPixmap = QPixmap();
+        m_hasDefaultIcon = false;

 
         m_timer->start(500);
     } else {
 
         m_timer->start(500);
     } else {


@@ -142,84 +146,64 @@ void ToolTipManager::hideToolTip()
     m_timer->stop();
     m_previewTimer->stop();
     m_waitOnPreviewTimer->stop();
     m_timer->stop();
     m_previewTimer->stop();
     m_waitOnPreviewTimer->stop();

-    m_previewIsLate = false;

     KToolTip::hideTip();
 }
 
 void ToolTipManager::prepareToolTip()
 {
     if (m_generatingPreview) {
     KToolTip::hideTip();
 }
 
 void ToolTipManager::prepareToolTip()
 {
     if (m_generatingPreview) {

-        if (m_previewPass == 1) {
-            // We waited 250msec and the preview is still not finished,
-            // so show the toolTip with a transparent image of maximal width.
-            // When the preview finishes, m_previewIsLate will cause
-            // a direct update of the tooltip, via m_emptyRenderedKToolTipItem.
-            QPixmap paddedImage(QSize(PREVIEW_WIDTH, 32));
-            m_previewIsLate = true;
-            paddedImage.fill(Qt::transparent);
-            KToolTipItem* toolTip = new KToolTipItem(paddedImage, m_item.getToolTipText());
-            m_emptyRenderedKToolTipItem = toolTip; // make toolTip accessible everywhere
-            showToolTip(toolTip);
-        }
-
-        ++m_previewPass;

         m_waitOnPreviewTimer->start(250);
         m_waitOnPreviewTimer->start(250);

-    } else {
-        // The preview generation has finished, find out under which circumstances.
-        if (m_preview && m_previewIsLate) {
-            // We got a preview, but it is late, the tooltip has already been shown.
-            // So update the tooltip directly.
-            if (m_emptyRenderedKToolTipItem != 0) {
-                m_emptyRenderedKToolTipItem->setData(Qt::DecorationRole, KIcon(m_pix));
-            }
-            return;
-        }
+    }

 
 

-        KIcon icon;
-        if (m_preview) {
-            // We got a preview.
-            icon = KIcon(m_pix);
-        } else {
-            // No preview, so use an icon.
-            // Force a 128x128 icon, a 256x256 one is far too big.
-            icon = KIcon(KIcon(m_item.iconName()).pixmap(ICON_WIDTH, ICON_HEIGHT));
-        }
+    if (!m_previewPixmap.isNull()) {
+        showToolTip(m_previewPixmap);
+    } else if (!m_hasDefaultIcon) {
+        const QPixmap image(KIcon(m_item.iconName()).pixmap(128, 128));
+        showToolTip(image);
+        m_hasDefaultIcon = true;
+    }
+}
+
+void ToolTipManager::startPreviewJob()
+{
+    m_generatingPreview = true;
+    KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << m_item, 256, 256);
+
+    connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
+            this, SLOT(setPreviewPix(const KFileItem&, const QPixmap&)));
+    connect(job, SIGNAL(failed(const KFileItem&)),
+            this, SLOT(previewFailed()));
+}

 
 

-        KToolTipItem* toolTip = new KToolTipItem(icon, m_item.getToolTipText());
-        showToolTip(toolTip);
+
+void ToolTipManager::setPreviewPix(const KFileItem& item,
+                                   const QPixmap& pixmap)
+{
+    if ((m_item.url() != item.url()) || pixmap.isNull()) {
+        // an old preview or an invalid preview has been received
+        previewFailed();
+    } else {
+        m_previewPixmap = pixmap;
+        m_generatingPreview = false;

     }
 }
 
     }
 }
 

-void ToolTipManager::showToolTip(KToolTipItem* tip)
+void ToolTipManager::previewFailed()
+{
+    m_generatingPreview = false;
+}
+
+
+void ToolTipManager::showToolTip(const QPixmap& pixmap)

 {
     if (QApplication::mouseButtons() & Qt::LeftButton) {
 {
     if (QApplication::mouseButtons() & Qt::LeftButton) {

-        delete tip;
-        tip = 0;
-        // m_emptyRenderedKToolTipItem is an alias for tip.
-        m_emptyRenderedKToolTipItem = 0;

         return;
     }
 
         return;
     }
 

-    KStyleOptionToolTip option;
-    // TODO: get option content from KToolTip or add KToolTip::sizeHint() method
-    option.direction      = QApplication::layoutDirection();
-    option.fontMetrics    = QFontMetrics(QToolTip::font());
-    option.activeCorner   = KStyleOptionToolTip::TopLeftCorner;
-    option.palette        = QToolTip::palette();
-    option.font           = QToolTip::font();
-    option.rect           = QRect();
-    option.state          = QStyle::State_None;
-    option.decorationSize = QSize(32, 32);
-
-    QSize size;
-    if (m_previewIsLate) {
-        QPixmap paddedImage(QSize(PREVIEW_WIDTH, PREVIEW_HEIGHT));
-        KToolTipItem maxiTip(paddedImage, m_item.getToolTipText());
-        size = g_delegate->sizeHint(option, maxiTip);
-    }
-    else if (tip != 0) {
-        size = g_delegate->sizeHint(option, *tip);
-    }
+    QWidget* tip = createTipContent(pixmap);
+
+    // calculate the x- and y-position of the tooltip
+    const QSize size = tip->sizeHint();

     const QRect desktop = QApplication::desktop()->screenGeometry(m_itemRect.bottomRight());
 
     // m_itemRect defines the area of the item, where the tooltip should be
     const QRect desktop = QApplication::desktop()->screenGeometry(m_itemRect.bottomRight());
 
     // m_itemRect defines the area of the item, where the tooltip should be


@@ -254,51 +238,55 @@ void ToolTipManager::showToolTip(KToolTipItem* tip)
         y = desktop.bottom() - size.height();
     }
 
         y = desktop.bottom() - size.height();
     }
 

+    // the ownership of tip is transferred to KToolTip

     KToolTip::showTip(QPoint(x, y), tip);
 }
 
     KToolTip::showTip(QPoint(x, y), tip);
 }
 

-
-
-void ToolTipManager::startPreviewJob()
+QWidget* ToolTipManager::createTipContent(const QPixmap& pixmap) const

 {
 {

-    m_generatingPreview = true;
-    KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << m_item,
-                                            PREVIEW_WIDTH,
-                                            PREVIEW_HEIGHT);
-
-    connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
-            this, SLOT(setPreviewPix(const KFileItem&, const QPixmap&)));
-    connect(job, SIGNAL(failed(const KFileItem&)),
-            this, SLOT(previewFailed(const KFileItem&)));
-}
-
-
-void ToolTipManager::setPreviewPix(const KFileItem& item,
-                                   const QPixmap& pixmap)
-{
-    if (m_item.url() != item.url()) {
-        m_generatingPreview = false;
-        return;
-    }
-
-    if (m_previewIsLate) {
-        // always use the maximal width
-        QPixmap paddedImage(QSize(PREVIEW_WIDTH, pixmap.height()));
-        paddedImage.fill(Qt::transparent);
-        QPainter painter(&paddedImage);
-        painter.drawPixmap((PREVIEW_WIDTH - pixmap.width()) / 2, 0, pixmap);
-        m_pix = paddedImage;
-    } else {
-        m_pix = pixmap;
-    }
-    m_preview = true;
-    m_generatingPreview = false;
-}
-
-void ToolTipManager::previewFailed(const KFileItem& item)
-{
-    Q_UNUSED(item);
-    m_generatingPreview = false;
+    QWidget* tipContent = new QWidget();
+
+    // add pixmap
+    QLabel* pixmapLabel = new QLabel(tipContent);
+    pixmapLabel->setPixmap(pixmap);
+    pixmapLabel->setFixedSize(pixmap.size());
+
+    // add item name
+    QLabel* nameLabel = new QLabel(tipContent);
+    nameLabel->setText(m_item.text());
+    nameLabel->setWordWrap(true);
+    QFont font = nameLabel->font();
+    font.setBold(true);
+    nameLabel->setFont(font);
+    nameLabel->setAlignment(Qt::AlignHCenter);
+    nameLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
+
+    // add meta data
+    KMetaDataWidget* metaDataWidget = new KMetaDataWidget(tipContent);
+    metaDataWidget->setModel(new KMetaDataModel(tipContent));
+    metaDataWidget->setForegroundRole(QPalette::ToolTipText);
+    metaDataWidget->setItem(m_item);
+    metaDataWidget->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    metaDataWidget->setReadOnly(true);
+
+    // the stretchwidget allows the metadata widget to be top aligned and fills
+    // the remaining vertical space
+    QWidget* stretchWidget = new QWidget(tipContent);
+    stretchWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
+
+    QWidget* textContainer = new QWidget(tipContent);
+    QVBoxLayout* textLayout = new QVBoxLayout(textContainer);
+    textLayout->addWidget(nameLabel);
+    textLayout->addWidget(new KSeparator());
+    textLayout->addWidget(metaDataWidget);
+    textLayout->addWidget(stretchWidget);
+
+    QHBoxLayout* tipLayout = new QHBoxLayout(tipContent);
+    tipLayout->setMargin(0);
+    tipLayout->addWidget(pixmapLabel);
+    tipLayout->addWidget(textContainer);
+
+    return tipContent;

 }
 
 #include "tooltipmanager.moc"
 }
 
 #include "tooltipmanager.moc"