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Y-Sort children together in nested YSorts

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Closes #3281
This commit is contained in:
Bojidar Marinov 2018-10-30 20:00:31 +02:00
parent 7f3093d3b9
commit 6b8d6e3b07
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GPG key ID: 4D546A8F1E091856
2 changed files with 62 additions and 12 deletions
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62
servers/visual/visual_server_canvas.cpp
View file

@ -51,6 +51,23 @@ void VisualServerCanvas::_render_canvas_item_tree(Item *p_canvas_item, const Tra
}
}
void _collect_ysort_children(VisualServerCanvas::Item *p_canvas_item, Transform2D p_transform, VisualServerCanvas::Item **r_items, Transform2D *r_extra_transforms, int &r_index) {
int child_item_count = p_canvas_item->child_items.size();
VisualServerCanvas::Item **child_items = p_canvas_item->child_items.ptrw();
for (int i = 0; i < child_item_count; i++) {
if (r_items) {
r_items[r_index] = child_items[i];
child_items[i]->ysort_xform = p_transform;
child_items[i]->ysort_pos = p_transform.xform(child_items[i]->xform.elements[2]);
}
r_index++;
if (child_items[i]->sort_y)
_collect_ysort_children(child_items[i], p_transform * child_items[i]->xform, r_items, r_extra_transforms, r_index);
}
}
void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, int p_z, RasterizerCanvas::Item **z_list, RasterizerCanvas::Item **z_last_list, Item *p_canvas_clip, Item *p_material_owner) {
Item *ci = p_canvas_item;
@ -58,10 +75,10 @@ void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transfor
if (!ci->visible)
return;
if (p_canvas_item->children_order_dirty) {
if (ci->children_order_dirty) {
p_canvas_item->child_items.sort_custom<ItemIndexSort>();
p_canvas_item->children_order_dirty = false;
ci->child_items.sort_custom<ItemIndexSort>();
ci->children_order_dirty = false;
}
Rect2 rect = ci->get_rect();
@ -82,8 +99,8 @@ void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transfor
return;
int child_item_count = ci->child_items.size();
Item **child_items = (Item **)alloca(child_item_count * sizeof(Item *));
copymem(child_items, ci->child_items.ptr(), child_item_count * sizeof(Item *));
Item **child_items = ci->child_items.ptrw();
Transform2D *child_extra_transforms = NULL;
if (ci->clip) {
if (p_canvas_clip != NULL) {
@ -99,6 +116,17 @@ void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transfor
if (ci->sort_y) {
if (ci->ysort_children_count == -1) {
ci->ysort_children_count = 0;
_collect_ysort_children(ci, Transform2D(), NULL, NULL, ci->ysort_children_count);
}
child_item_count = ci->ysort_children_count;
child_items = (Item **)alloca(child_item_count * sizeof(Item *));
int i = 0;
_collect_ysort_children(ci, Transform2D(), child_items, child_extra_transforms, i);
SortArray<Item *, ItemPtrSort> sorter;
sorter.sort(child_items, child_item_count);
}
@ -110,9 +138,13 @@ void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transfor
for (int i = 0; i < child_item_count; i++) {
if (!child_items[i]->behind)
if (!child_items[i]->behind || (ci->sort_y && child_items[i]->sort_y))
continue;
_render_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
if (ci->sort_y) {
_render_canvas_item(child_items[i], xform * child_items[i]->ysort_xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
} else {
_render_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
}
}
if (ci->copy_back_buffer) {
@ -148,9 +180,13 @@ void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transfor
for (int i = 0; i < child_item_count; i++) {
if (child_items[i]->behind)
if (child_items[i]->behind || (ci->sort_y && child_items[i]->sort_y))
continue;
_render_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
if (ci->sort_y) {
_render_canvas_item(child_items[i], xform * child_items[i]->ysort_xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
} else {
_render_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
}
}
}
@ -300,6 +336,7 @@ void VisualServerCanvas::canvas_item_set_parent(RID p_item, RID p_parent) {
Item *item_owner = canvas_item_owner.get(canvas_item->parent);
item_owner->child_items.erase(canvas_item);
item_owner->ysort_children_count = -1;
}
canvas_item->parent = RID();
@ -319,6 +356,12 @@ void VisualServerCanvas::canvas_item_set_parent(RID p_item, RID p_parent) {
item_owner->child_items.push_back(canvas_item);
item_owner->children_order_dirty = true;
Item *ysort_owner = item_owner;
while (ysort_owner && ysort_owner->sort_y) {
item_owner->ysort_children_count = -1;
ysort_owner = canvas_item_owner.getornull(ysort_owner->parent);
}
} else {
ERR_EXPLAIN("Invalid parent");
@ -828,6 +871,7 @@ void VisualServerCanvas::canvas_item_set_sort_children_by_y(RID p_item, bool p_e
ERR_FAIL_COND(!canvas_item);
canvas_item->sort_y = p_enable;
canvas_item->ysort_children_count = -1;
}
void VisualServerCanvas::canvas_item_set_z_index(RID p_item, int p_z) {

12
servers/visual/visual_server_canvas.h
View file

@ -48,6 +48,9 @@ public:
bool use_parent_material;
int index;
bool children_order_dirty;
int ysort_children_count;
Transform2D ysort_xform;
Vector2 ysort_pos;
Vector<Item *> child_items;
@ -61,6 +64,9 @@ public:
use_parent_material = false;
z_relative = true;
index = 0;
ysort_children_count = -1;
ysort_xform = Transform2D();
ysort_pos = Vector2();
}
};
@ -76,10 +82,10 @@ public:
_FORCE_INLINE_ bool operator()(const Item *p_left, const Item *p_right) const {
if (Math::abs(p_left->xform.elements[2].y - p_right->xform.elements[2].y) < CMP_EPSILON)
return p_left->xform.elements[2].x < p_right->xform.elements[2].x;
if (Math::abs(p_left->ysort_pos.y - p_right->ysort_pos.y) < CMP_EPSILON)
return p_left->ysort_pos.x < p_right->ysort_pos.x;
else
return p_left->xform.elements[2].y < p_right->xform.elements[2].y;
return p_left->ysort_pos.y < p_right->ysort_pos.y;
}
};