Week 3: Resolving Combobox Icon Flaw and TextBox Justification

ganimtron_10
Published: 06/18/2023

What did you do this week?

This week, I tackled the ComboBox2D icon flaw, which was addressed using Pull Request (PR) #576. The problem arose when we added a ComboBox2D to the TabUI. The TabUI would propagate the set_visibility = true for all its child elements, causing the combobox to appear on the screen without the icon change. To fix this issue, #768 updated the set_visibility method of the UI class, ensuring that the icon change was applied correctly.

Next, I focused on the textbox justification. As discussed in our meeting, I added a new property called boundingbox to the TextBlock2D. However, I encountered a problem when resizing the TextBlock2D. The `vtkTextActor` property would switch from `SetTextScaleModeToNone` to `SetTextScaleModeToProp` , which would scale the font according to the position1 (lower left corner) and position2 (upper right corner) of the UI. This inconsistency in font scaling resulted in misaligned text actors. I spent some time investigating this issue, and you can find my progress in the ongoing PR #803.

Additionally, I started working on creating a Scrollbar component by inheriting the LineSlider2D. I made adjustments to the position and other attributes to make it function as a scrollbar. However, I encountered some confusion regarding how to separate the scrollbar component from other elements and determine what should be included in the scrollbar itself.

Did you get stuck anywhere?

I faced a challenge while working on the text justification. It took me several days to identify the root cause of the occasional malfunctioning of the TextBlock2D. Atlast, I found out the reason behind the issue.

What is coming up next?

Next week, I have several tasks lined up. Firstly, I will be working on the CardUI PR #398. Additionally, I plan to complete the segregation of the scrollbar component, ensuring its independence and clarity. Lastly, I will be working on issue #540, which involves updating the use of the `numpy_to_vtk_image_data` utility function.

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