Tooltip with rich content async width/height calculation issue

timcharper · August 25, 2025, 7:29am

I’m displaying a tool-tip with rich content (icons, bold text, etc) and I’m getting some really strange results. The calculated height and width for the tool-tip are being applied for the next tool-tip shown, leading to funky squishing / stretching / cropping happening if one tool-tip to the next has different height and width.

(see Clue tooltips stretched/squished/cropped when switching between tooltips of different sizes · Issue #10 · timcharper/EmojiClu · GitHub for a video)

The source in question showing the tooltip is here:

github.com/timcharper/EmojiClu

src/ui/clue_ui.rs

97148122d


      
              let title = Label::new(None);
              title.set_markup(&format!("<b>{}</b>", clue_data.clue.clue_type.get_title()));
              title_box.append(&title);
              tooltip_box.append(&title_box);
          
              // Add description with example
              let desc_box = Box::new(Orientation::Horizontal, 5);
              let template = self.clue.clue.description();
          
              desc_box.append(&self.parse_template(&template));
              tooltip_box.append(&desc_box);
          
              tooltip_box
          }
          
          pub fn set_selected(&self, clue_selection: &Option<ClueSelection>) {
              let my_clue_selected = if let Some(clue_selection) = clue_selection {
                  clue_selection.clue == self.clue
              } else {
                  false
              };

Is there some special thing I’m supposed to do to calculate the width / height of the tool-tip?

I’ve tried quite a few things, including scheduling a delayed queue_resize and delayed queue_reallocate but nothing I’ve tried has worked.

I suppose I could just pick a size for the tool-tip and stick with it, but I’d like to understand why this is happening.

system · September 24, 2025, 7:30am

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