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Fix bad rendering of BBCode tables in RichTextLabel

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Text overflowed canvas as tables didn't calculate correctly the width
of their columns. They used the whole table width available for each
column. Also, the `cell` parameter was wrongly parsed if used with its
optional argument (expand ratio).

This PR fixs the parsing of `cell` parameter (i.e. `cell=e`) and the
distribution of the full table width between columns, but it overrides
automatically the `expand` flag if the column is smaller than it could
be, to allow a better UX out-of-the-box. It keeps the `expand_ratio`
flag to let the user customize how every column grows in relation to
the rest.

Partially fix #6289.
This commit is contained in:
robfram 2018-03-18 11:28:17 +01:00
parent 760b0567a6
commit 5358befb41
2 changed files with 10 additions and 3 deletions
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11
scene/gui/rich_text_label.cpp
View file

@ -125,6 +125,7 @@ int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &
l.descent_caches.clear();
l.char_count = 0;
l.minimum_width = 0;
l.maximum_width = 0;
}
int wofs = margin;
@ -200,7 +201,8 @@ int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &
#define ENSURE_WIDTH(m_width) \
if (p_mode == PROCESS_CACHE) { \
l.minimum_width = MAX(l.minimum_width, wofs + m_width); \
l.maximum_width = MAX(l.maximum_width, MIN(p_width, wofs + m_width)); \
l.minimum_width = MAX(l.minimum_width, m_width); \
} \
if (wofs + m_width > p_width) { \
if (p_mode == PROCESS_CACHE) { \
@ -469,6 +471,7 @@ int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &
//set minimums to zero
for (int i = 0; i < table->columns.size(); i++) {
table->columns[i].min_width = 0;
table->columns[i].max_width = 0;
table->columns[i].width = 0;
}
//compute minimum width for each cell
@ -486,6 +489,7 @@ int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &
_process_line(frame, Point2(), ly, available_width, i, PROCESS_CACHE, cfont, Color());
table->columns[column].min_width = MAX(table->columns[column].min_width, frame->lines[i].minimum_width);
table->columns[column].max_width = MAX(table->columns[column].max_width, frame->lines[i].maximum_width);
}
idx++;
}
@ -498,12 +502,13 @@ int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &
for (int i = 0; i < table->columns.size(); i++) {
remaining_width -= table->columns[i].min_width;
if (table->columns[i].max_width > table->columns[i].min_width)
table->columns[i].expand = true;
if (table->columns[i].expand)
total_ratio += table->columns[i].expand_ratio;
}
//assign actual widths
for (int i = 0; i < table->columns.size(); i++) {
table->columns[i].width = table->columns[i].min_width;
if (table->columns[i].expand)
@ -1633,7 +1638,7 @@ Error RichTextLabel::append_bbcode(const String &p_bbcode) {
tag_stack.push_front(tag);
} else if (tag.begins_with("cell=")) {
int ratio = tag.substr(6, tag.length()).to_int();
int ratio = tag.substr(5, tag.length()).to_int();
if (ratio < 1)
ratio = 1;
//use monospace font

2
scene/gui/rich_text_label.h
View file

@ -87,6 +87,7 @@ private:
int height_accum_cache;
int char_count;
int minimum_width;
int maximum_width;
Line() {
from = NULL;
@ -199,6 +200,7 @@ private:
bool expand;
int expand_ratio;
int min_width;
int max_width;
int width;
};