RichTextLabel: Add count and scroll functions for wrapped lines and paragraphs. #45128
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bruvzg
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I can't check if it fixes my issue, because |
…t` and `scroll_to_x` functions for wrapped lines and paragraphs (newlines).
bruvzg
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Thanks! |
| int RichTextLabel::get_line_count() const { | ||
| return current_frame->lines.size(); | ||
| int line_count = 0; | ||
| for (int i = 0; i < main->lines.size(); i++) { | ||
| line_count += main->lines[i].text_buf->get_line_count(); | ||
| } | ||
| return line_count; | ||
| } |
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I think this is wrong, or should at least be made optional.
The actual amount of lines in a RTL and the amount of lines rendered is two different things.
When you want to get the line count of the number of lines the actual RLT contains, for example to remove a line in remove_line(), you want the value of current_frame->lines.size(), not including wrapped lines. If you include wrapped lines, you may be reporting a larger number of lines than actually exists. In which case you will exit out of remove_line() early, since p_line > current_frame->lines.size()
I dont' really know the usecase for the number of lines rendered, which is what this PR does. But I think get_line_count() should at least have a parameter to determine which value to obtain.
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get_paragraph_count should return number of lines without counting wrapped lines.
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I see... sorry, didn't catch that.
Were uses of the "legacy" get_line_count() changed to get_paragraph_count() within the rest of the codebase?
I'm also not sure about the naming... but I guess it works and I don't have better suggestions at this stage.
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Can this port to 3.x ? |
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seconding this, this is still a huge issue in 3.x |
Adds separate
get_total_x_count,get_visible_x_countandscroll_to_xfunctions for wrapped lines and paragraphs (newlines).Old behavior:
get_line_countandscroll_to_line functionswere counting newlines/paragraphs,get_visible_line_countwas counting lines before #40217, and paragraphs after.New behavior:
x_paragraph_xfunctions count paragraphs (newlines or[p]tags), andx_line_xfunctions count wrapped lines.Fixes: #40982