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Fix RichTextLabel column size growing beyond its calculated max_width

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When `RichTextLabel` calculated the actual width of columns, it let
them grow to sizes greater than its calculated `max_width`. Now this
PR ensures no columns grows beyond `max_width`, and the excess width
is distributed among the columns which can still grow.

It should fix #17731.
This commit is contained in:
robfram 2018-03-24 18:09:35 +01:00
parent fd79de01c2
commit ef2b7b090c
1 changed files with 33 additions and 0 deletions
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33
scene/gui/rich_text_label.cpp
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@ -516,6 +516,39 @@ int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &
table->total_width += table->columns[i].width + hseparation;
}
//resize to max_width if needed and distribute the remaining space
bool table_need_fit = true;
while (table_need_fit) {
table_need_fit = false;
//fit slim
for (int i = 0; i < table->columns.size(); i++) {
if (!table->columns[i].expand)
continue;
int dif = table->columns[i].width - table->columns[i].max_width;
if (dif > 0) {
table_need_fit = true;
table->columns[i].width = table->columns[i].max_width;
table->total_width -= dif;
total_ratio -= table->columns[i].expand_ratio;
}
}
//grow
remaining_width = available_width - table->total_width;
if (remaining_width > 0 && total_ratio > 0) {
for (int i = 0; i < table->columns.size(); i++) {
if (table->columns[i].expand) {
int dif = table->columns[i].max_width - table->columns[i].width;
if (dif > 0) {
int slice = table->columns[i].expand_ratio * remaining_width / total_ratio;
int incr = MIN(dif, slice);
table->columns[i].width += incr;
table->total_width += incr;
}
}
}
}
}
//compute caches properly again with the right width
idx = 0;
for (List<Item *>::Element *E = table->subitems.front(); E; E = E->next()) {