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Make relationship lines draw on top of TreeItems 

(cherry picked from commit b91e3237c6)
This commit is contained in:
Yuri Sizov 2021-06-21 16:54:59 +03:00 committed by Rémi Verschelde
parent 288ce3c4b1
commit e1bc053496
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GPG Key ID: C3336907360768E1
1 changed files with 26 additions and 27 deletions
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53
scene/gui/tree.cpp
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@ -1497,36 +1497,35 @@ int Tree::draw_item(const Point2i &p_pos, const Point2 &p_draw_ofs, const Size2
int prev_ofs = children_pos.y - cache.offset.y + p_draw_ofs.y; int prev_ofs = children_pos.y - cache.offset.y + p_draw_ofs.y;
while (c) { while (c) {
if (cache.draw_relationship_lines > 0 && (!hide_root || c->parent != root)) {
int root_ofs = children_pos.x + ((p_item->disable_folding || hide_folding) ? cache.hseparation : cache.item_margin);
int parent_ofs = p_pos.x + ((p_item->disable_folding || hide_folding) ? cache.hseparation : cache.item_margin);
Point2i root_pos = Point2i(root_ofs, children_pos.y + label_h / 2) - cache.offset + p_draw_ofs;
if (c->get_children() != NULL)
root_pos -= Point2i(cache.arrow->get_width(), 0);
float line_width = 1.0;
#ifdef TOOLS_ENABLED
line_width *= EDSCALE;
#endif
Point2i parent_pos = Point2i(parent_ofs - cache.arrow->get_width() / 2, p_pos.y + label_h / 2 + cache.arrow->get_height() / 2) - cache.offset + p_draw_ofs;
if (root_pos.y + line_width >= 0) {
VisualServer::get_singleton()->canvas_item_add_line(ci, root_pos, Point2i(parent_pos.x - Math::floor(line_width / 2), root_pos.y), cache.relationship_line_color, line_width);
VisualServer::get_singleton()->canvas_item_add_line(ci, Point2i(parent_pos.x, root_pos.y), Point2i(parent_pos.x, prev_ofs), cache.relationship_line_color, line_width);
}
if (htotal < 0) {
return -1;
}
prev_ofs = root_pos.y;
}
if (htotal >= 0) { if (htotal >= 0) {
int child_h = draw_item(children_pos, p_draw_ofs, p_draw_size, c); int child_h = draw_item(children_pos, p_draw_ofs, p_draw_size, c);
// Draw relationship lines.
if (cache.draw_relationship_lines > 0 && (!hide_root || c->parent != root)) {
int root_ofs = children_pos.x + ((p_item->disable_folding || hide_folding) ? cache.hseparation : cache.item_margin);
int parent_ofs = p_pos.x + ((p_item->disable_folding || hide_folding) ? cache.hseparation : cache.item_margin);
Point2i root_pos = Point2i(root_ofs, children_pos.y + label_h / 2) - cache.offset + p_draw_ofs;
if (c->get_children() != nullptr) {
root_pos -= Point2i(cache.arrow->get_width(), 0);
}
float line_width = 1.0;
#ifdef TOOLS_ENABLED
line_width *= EDSCALE;
#endif
Point2i parent_pos = Point2i(parent_ofs - cache.arrow->get_width() / 2, p_pos.y + label_h / 2 + cache.arrow->get_height() / 2) - cache.offset + p_draw_ofs;
if (root_pos.y + line_width >= 0) {
// Order of parts on this bend: the horizontal line first, then the vertical line.
VisualServer::get_singleton()->canvas_item_add_line(ci, root_pos, Point2i(parent_pos.x - Math::floor(line_width / 2), root_pos.y), cache.relationship_line_color, line_width);
VisualServer::get_singleton()->canvas_item_add_line(ci, Point2i(parent_pos.x, root_pos.y), Point2i(parent_pos.x, prev_ofs), cache.relationship_line_color, line_width);
}
prev_ofs = root_pos.y;
}
if (child_h < 0) { if (child_h < 0) {
if (cache.draw_relationship_lines == 0) { if (cache.draw_relationship_lines == 0) {
return -1; // break, stop drawing, no need to anymore return -1; // break, stop drawing, no need to anymore