B4J Question Inaccurate Drawing of Text using BCTextEngine

Erel

B4X founder

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• Oct 12, 2025

• #2

Where is it cut?

 

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xulihang

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• Oct 12, 2025

• #3

I increased the font size to 50. This looks good.



But it does not look good if the size is 15. See the bottom part of the text.

 

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Erel

B4X founder

Staff member

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Longtime User

• Oct 12, 2025

• #4

B4X:

BBCodeView1.Text = $"[TextSize=15]我爱我的祖国！
我爱我的祖国！
我爱我的祖国！[/TextSize]"$

This is what I get:

 

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xulihang

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• Oct 12, 2025

• #5

Here is another example. It will be easier to notice the text being cut if I zoom in the text image.

 

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Erel

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Staff member

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• Oct 15, 2025

• #6

This is what I get:


It might be a rounding error related to the monitor DPI setting.

What is the output of Log(TextEngine.mScale)?

Try to increase TextEngine.SpaceBetweenLines or MinGapBetweenLines.

 

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xulihang

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Longtime User

• Oct 16, 2025

• #7

The scale is 100%.

If it only has one line, then SpaceBetweenLines will not help with it.

 

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