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Add offset methods for lines and paragraphs in RichTextLabel

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Adds `get_line_offset` and `get_paragraph_offset` methods to `RichTextLabel`

Fix arg mismatch
This commit is contained in:
markdibarry 2022-02-13 12:33:37 -05:00
parent 48ed0400bc
commit c0caafe960
3 changed files with 42 additions and 0 deletions
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14
doc/classes/RichTextLabel.xml
View file

@ -67,12 +67,26 @@
Returns the total number of lines in the text. Wrapped text is counted as multiple lines.
</description>
</method>
<method name="get_line_offset">
<return type="float" />
<argument index="0" name="line" type="int" />
<description>
Returns the vertical offset of the line found at the provided index.
</description>
</method>
<method name="get_paragraph_count" qualifiers="const">
<return type="int" />
<description>
Returns the total number of paragraphs (newlines or [code]p[/code] tags in the tag stack's text tags). Considers wrapped text as one paragraph.
</description>
</method>
<method name="get_paragraph_offset">
<return type="float" />
<argument index="0" name="paragraph" type="int" />
<description>
Returns the vertical offset of the paragraph found at the provided index.
</description>
</method>
<method name="get_parsed_text" qualifiers="const">
<return type="String" />
<description>

25
scene/gui/rich_text_label.cpp
View file

@ -3727,6 +3727,28 @@ void RichTextLabel::scroll_to_line(int p_line) {
}
}
float RichTextLabel::get_line_offset(int p_line) {
int line_count = 0;
for (int i = 0; i < main->lines.size(); i++) {
if ((line_count <= p_line) && (p_line <= line_count + main->lines[i].text_buf->get_line_count())) {
float line_offset = 0.f;
for (int j = 0; j < p_line - line_count; j++) {
line_offset += main->lines[i].text_buf->get_line_size(j).y + get_theme_constant(SNAME("line_separation"));
}
return main->lines[i].offset.y + line_offset;
}
line_count += main->lines[i].text_buf->get_line_count();
}
return 0;
}
float RichTextLabel::get_paragraph_offset(int p_paragraph) {
if (0 <= p_paragraph && p_paragraph < main->lines.size()) {
return main->lines[p_paragraph].offset.y;
}
return 0;
}
int RichTextLabel::get_line_count() const {
int line_count = 0;
for (int i = 0; i < main->lines.size(); i++) {
@ -4341,6 +4363,9 @@ void RichTextLabel::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_content_height"), &RichTextLabel::get_content_height);
ClassDB::bind_method(D_METHOD("get_content_width"), &RichTextLabel::get_content_width);
ClassDB::bind_method(D_METHOD("get_line_offset", "line"), &RichTextLabel::get_line_offset);
ClassDB::bind_method(D_METHOD("get_paragraph_offset", "paragraph"), &RichTextLabel::get_paragraph_offset);
ClassDB::bind_method(D_METHOD("parse_expressions_for_values", "expressions"), &RichTextLabel::parse_expressions_for_values);
ClassDB::bind_method(D_METHOD("set_effects", "effects"), &RichTextLabel::set_effects);

3
scene/gui/rich_text_label.h
View file

@ -551,6 +551,9 @@ public:
int get_paragraph_count() const;
int get_visible_paragraph_count() const;
float get_line_offset(int p_line);
float get_paragraph_offset(int p_paragraph);
void scroll_to_line(int p_line);
int get_line_count() const;
int get_visible_line_count() const;