Refs #10408 Use QLabel to show hints

Instead of relying on QToolTip (which has problems on OSX), create a QLabel widget and style it to look like a tooltip.
mantidproject · Oct 29, 2014 · 9bc29d8 · 9bc29d8
1 parent 524f81d
commit 9bc29d8
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Showing 2 changed files with 24 additions and 1 deletion.
diff --git a/Code/Mantid/MantidQt/MantidWidgets/inc/MantidQtMantidWidgets/HintingLineEdit.h b/Code/Mantid/MantidQt/MantidWidgets/inc/MantidQtMantidWidgets/HintingLineEdit.h
@@ -57,6 +57,7 @@ namespace MantidQt
       std::map<std::string,std::string> m_matches;
       std::map<std::string,std::string> m_hints;
       bool m_dontComplete;
+      QLabel* m_hintLabel;
     protected slots:
       void updateHints(const QString& text);
     };

diff --git a/Code/Mantid/MantidQt/MantidWidgets/src/HintingLineEdit.cpp b/Code/Mantid/MantidQt/MantidWidgets/src/HintingLineEdit.cpp
@@ -9,6 +9,18 @@ namespace MantidQt
   {
     HintingLineEdit::HintingLineEdit(QWidget *parent, const std::map<std::string,std::string> &hints) : QLineEdit(parent), m_hints(hints), m_dontComplete(false)
     {
+      m_hintLabel = new QLabel(this, Qt::ToolTip);
+      m_hintLabel->setMargin(1 + style()->pixelMetric(QStyle::PM_ToolTipLabelFrameWidth, 0, m_hintLabel));
+      m_hintLabel->setFrameStyle(QFrame::StyledPanel);
+      m_hintLabel->setAlignment(Qt::AlignLeft);
+      m_hintLabel->setWordWrap(true);
+      m_hintLabel->setIndent(1);
+      m_hintLabel->setAutoFillBackground(true);
+      m_hintLabel->setPalette(QToolTip::palette());
+      m_hintLabel->setForegroundRole(QPalette::ToolTipText);
+      m_hintLabel->setBackgroundRole(QPalette::ToolTipBase);
+      m_hintLabel->ensurePolished();
+
       connect(this, SIGNAL(textEdited(const QString&)), this, SLOT(updateHints(const QString&)));
     }
 
@@ -103,7 +115,17 @@ namespace MantidQt
           hintList += QString::fromStdString(mIt->second) + "<br />\n";
       }
 
-      QToolTip::showText(mapToGlobal(QPoint(0, 5)), hintList.trimmed());
+      if(!hintList.trimmed().isEmpty())
+      {
+        m_hintLabel->show();
+        m_hintLabel->setText(hintList.trimmed());
+        m_hintLabel->adjustSize();
+        m_hintLabel->move(mapToGlobal(QPoint(0, height())));
+      }
+      else
+      {
+        m_hintLabel->hide();
+      }
     }
 
     /** Insert an auto completion suggestion beneath the user's cursor and select it */