system/serenity
system/serenity
1
0
Fork 0
mirror of https://github.com/SerenityOS/serenity synced 2024-07-21 18:15:58 +00:00
Code Issues Actions 5 Packages Projects Releases Wiki Activity

LibGUI: Fix TextEditor crashing when selecting a blank line

Browse source 
Previously, the TextEditor would crash when selecting a line with
no codepoints due to a null dereference, so this patch makes sure
there is actually any text to render before giving it to the painter.
This commit is contained in:
FalseHonesty 2020-05-29 14:10:36 -04:00 committed by Andreas Kling
parent 2a241a11bb
commit b0b03c52af
1 changed files with 7 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
Libraries/LibGUI/TextEditor.cpp
View file

@ -498,12 +498,14 @@ void TextEditor::paint_event(PaintEvent& event)
painter.fill_rect(selection_rect, background_color);
Utf32View visual_selected_text {
visual_line_text.codepoints() + start_of_selection_within_visual_line,
end_of_selection_within_visual_line - start_of_selection_within_visual_line
};
if (visual_line_text.codepoints()) {
Utf32View visual_selected_text {
visual_line_text.codepoints() + start_of_selection_within_visual_line,
end_of_selection_within_visual_line - start_of_selection_within_visual_line
};
painter.draw_text(selection_rect, visual_selected_text, Gfx::TextAlignment::CenterLeft, text_color);
painter.draw_text(selection_rect, visual_selected_text, Gfx::TextAlignment::CenterLeft, text_color);
}
}
}
++visual_line_index;