Tips for adjusting the width of a Qt tooltip

In order to display a tooltip that shows a two-line text with bold and multicolor characters, I encountered an issue where the tooltip had a maximum width constraint and the text was being cut off. I attempted to calculate the width of the text and manually set the width, but it did not have any effect. It appeared that setting the style as "width: some px" did not work for the tooltip. Below is the code snippet:

Edited

QString tooltip = "<div style= \"white-space: nowrap; width: 1500px;\">Some text for tooltip, which is too long</div>";

Is there a way to adjust the width of the tooltip?

c++htmlcssqttooltip

Answer №1

Utilizing the properties section of QtCreator/Designer, I employed the following HTML code:

<html>
<table width="25">
  <tr>
    <td width="25">alwkefjwekf</td>
  </tr>
  <tr>
    <td width="25">a ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea e</td>
  </tr>
</table>
</html>

This should give you an idea on how to effectively control the size of the table. I am sure there is a more concise way to convey this information.

Here is a specific example generated by QtCreator:

pushButton->setToolTip(QApplication::translate("MainWindow", "    <html>\n"
"    <table width=\"25\"><tr><td width=\"25\">alwkefjwekf</td></tr>\n"
"    <tr><td width=\"25\">a ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea e</td></tr>\n"
"    </table>\n"
"    </html>", 0));

Answer №2

This is a slightly tidier version ...
Avoid setting "white-space: nowrap;" as it may truncate text with a small width
Also, it's best not to hard code class names; since there is no __CLASS__, I utilized __FUNCTION__ instead

If you require the class name for Qt Linguist (the translate function), ensure the RTTI compiler option is enabled and utilize typeid(*this).name()

setToolTip( QApplication::translate(__FUNCTION__, "    <html>\n"
                                                  "    <div style=\"width: 300px;\">ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea ea</div>"
                                                  "    </html>", 0
                                 ));

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