Changeset 88881 in vbox

Timestamp:

May 5, 2021 4:02:32 PM (4 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

144216

Message:

FE/Qt: bugref:9510. Tracking the data point under mouse cursor

Location:

trunk/src/VBox/Frontends/VirtualBox/src/activity/vmactivity

Files:

• UIVMActivityMonitor.cpp (modified) (8 diffs)
• UIVMActivityMonitor.h (modified) (1 diff)

trunk/src/VBox/Frontends/VirtualBox/src/activity/vmactivity/UIVMActivityMonitor.cpp

@@ -101 +101 @@
 protected:
 
+    virtual void resizeEvent(QResizeEvent *pEvent) /* override */;
+    virtual void mouseMoveEvent(QMouseEvent *pEvent) /* override */;
     virtual void paintEvent(QPaintEvent *pEvent) /* override */;
     virtual QSize minimumSizeHint() const /* override */;
@@ -137 +139 @@
     int m_iPieChartRadius;
     int m_iPieChartSpacing;
+    float m_fPixelPerDataPoint;
+    /** is set to -1 if mouse cursor is not over a data point*/
+    int m_iDataIndexUnderCursor;
     /** For some chart it is not possible to have a pie chart, Then We dont present the
       * option to show it to user. see m_fIsPieChartAllowed. */
@@ -167 +172 @@
     , m_size(QSize(50, 50))
     , m_iOverlayAlpha(80)
+    , m_fPixelPerDataPoint(0.f)
+    , m_iDataIndexUnderCursor(-1)
     , m_fIsPieChartAllowed(false)
     , m_fShowPieChart(true)
@@ -177 +184 @@
     m_axisFont.setPixelSize(14);
     setContextMenuPolicy(Qt::CustomContextMenu);
+    setMouseTracking(true);
     connect(this, &UIChart::customContextMenuRequested,
             this, &UIChart::sltCreateContextMenu);
@@ -318 +326 @@
     m_strAreaChartToggleActionLabel = QApplication::translate("UIVMInformationDialog", "Draw Area Chart");
     update();
+}
+
+void UIChart::resizeEvent(QResizeEvent *pEvent)
+{
+    int iWidth = width() - m_iMarginLeft - m_iMarginRight;
+    if (g_iMaximumQueueSize > 0)
+        m_fPixelPerDataPoint = iWidth / (float)g_iMaximumQueueSize;
+    QIWithRetranslateUI<QWidget>::resizeEvent(pEvent);
+}
+
+void UIChart::mouseMoveEvent(QMouseEvent *pEvent)
+{
+    int iX = pEvent->x();
+    m_iDataIndexUnderCursor = -1;
+    if (iX > m_iMarginLeft && iX <= width() - m_iMarginRight)
+        m_iDataIndexUnderCursor = (int)(g_iMaximumQueueSize -  (iX - m_iMarginLeft) / m_fPixelPerDataPoint);
+    QIWithRetranslateUI<QWidget>::mouseMoveEvent(pEvent);
 }
 
@@ -637 +662 @@
 }
 
-
 /*********************************************************************************************************************************
 *   UIMetric implementation.                                                                                                     *
@@ -722 +746 @@
         return 0;
     return &m_data[iDataSeriesIndex];
+}
+
+int UIMetric::dataSize(int iDataSeriesIndex) const
+{
+    if (iDataSeriesIndex >= DATA_SERIES_SIZE)
+        return 0;
+    return m_data[iDataSeriesIndex].size();
 }
 
@@ -883 +914 @@
 {
     foreach (UIChart *pChart, m_charts)
-        pChart->setXAxisLabel(QApplication::translate("UIVMInformationDialog", "Seconds"));
+        pChart->setXAxisLabel(QApplication::translate("UIVMInformationDialog", "Sec."));
 
     /* Translate the chart info labels: */

trunk/src/VBox/Frontends/VirtualBox/src/activity/vmactivity/UIVMActivityMonitor.h

@@ -71 +71 @@
     void addData(int iDataSeriesIndex, quint64 fData);
     const QQueue<quint64> *data(int iDataSeriesIndex) const;
+
+    /** # of the data point of the data series with index iDataSeriesIndex. */
+    int dataSize(int iDataSeriesIndex) const;
 
     void setDataSeriesName(int iDataSeriesIndex, const QString &strName);