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Diffstat (limited to 'scene/gui/scroll_container.cpp')
-rw-r--r--scene/gui/scroll_container.cpp95
1 files changed, 41 insertions, 54 deletions
diff --git a/scene/gui/scroll_container.cpp b/scene/gui/scroll_container.cpp
index 871cc520e9..8fd547813d 100644
--- a/scene/gui/scroll_container.cpp
+++ b/scene/gui/scroll_container.cpp
@@ -38,9 +38,13 @@ Size2 ScrollContainer::get_minimum_size() const {
Ref<StyleBox> sb = get_theme_stylebox(SNAME("bg"));
Size2 min_size;
+ // Calculated in this function, as it needs to traverse all child controls once to calculate;
+ // and needs to be calculated before being used by update_scrollbars().
+ largest_child_min_size = Size2();
+
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
- if (!c) {
+ if (!c || !c->is_visible()) {
continue;
}
if (c->is_set_as_top_level()) {
@@ -49,22 +53,30 @@ Size2 ScrollContainer::get_minimum_size() const {
if (c == h_scroll || c == v_scroll) {
continue;
}
- Size2 minsize = c->get_combined_minimum_size();
- if (horizontal_scroll_mode == SCROLL_MODE_DISABLED) {
- min_size.x = MAX(min_size.x, minsize.x);
- }
- if (vertical_scroll_mode == SCROLL_MODE_DISABLED) {
- min_size.y = MAX(min_size.y, minsize.y);
- }
+ Size2 child_min_size = c->get_combined_minimum_size();
+
+ largest_child_min_size.x = MAX(largest_child_min_size.x, child_min_size.x);
+ largest_child_min_size.y = MAX(largest_child_min_size.y, child_min_size.y);
}
- if (h_scroll->is_visible_in_tree()) {
+ if (horizontal_scroll_mode == SCROLL_MODE_DISABLED) {
+ min_size.x = MAX(min_size.x, largest_child_min_size.x);
+ }
+ if (vertical_scroll_mode == SCROLL_MODE_DISABLED) {
+ min_size.y = MAX(min_size.y, largest_child_min_size.y);
+ }
+
+ bool h_scroll_show = horizontal_scroll_mode == SCROLL_MODE_SHOW_ALWAYS || (horizontal_scroll_mode == SCROLL_MODE_AUTO && largest_child_min_size.x > min_size.x);
+ bool v_scroll_show = vertical_scroll_mode == SCROLL_MODE_SHOW_ALWAYS || (vertical_scroll_mode == SCROLL_MODE_AUTO && largest_child_min_size.y > min_size.y);
+
+ if (h_scroll_show && h_scroll->get_parent() == this) {
min_size.y += h_scroll->get_minimum_size().y;
}
- if (v_scroll->is_visible_in_tree()) {
+ if (v_scroll_show && v_scroll->get_parent() == this) {
min_size.x += v_scroll->get_minimum_size().x;
}
+
min_size += sb->get_minimum_size();
return min_size;
}
@@ -254,8 +266,8 @@ void ScrollContainer::ensure_control_visible(Control *p_control) {
set_v_scroll(get_v_scroll() + (diff.y - global_rect.position.y));
}
-void ScrollContainer::_update_dimensions() {
- child_max_size = Size2(0, 0);
+void ScrollContainer::_reposition_children() {
+ update_scrollbars();
Size2 size = get_size();
Point2 ofs;
@@ -274,7 +286,7 @@ void ScrollContainer::_update_dimensions() {
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
- if (!c) {
+ if (!c || !c->is_visible()) {
continue;
}
if (c->is_set_as_top_level()) {
@@ -284,25 +296,13 @@ void ScrollContainer::_update_dimensions() {
continue;
}
Size2 minsize = c->get_combined_minimum_size();
- child_max_size.x = MAX(child_max_size.x, minsize.x);
- child_max_size.y = MAX(child_max_size.y, minsize.y);
Rect2 r = Rect2(-Size2(get_h_scroll(), get_v_scroll()), minsize);
- if (horizontal_scroll_mode == SCROLL_MODE_DISABLED || (!h_scroll->is_visible_in_tree() && c->get_h_size_flags() & SIZE_EXPAND)) {
- r.position.x = 0;
- if (c->get_h_size_flags() & SIZE_EXPAND) {
- r.size.width = MAX(size.width, minsize.width);
- } else {
- r.size.width = minsize.width;
- }
+ if (c->get_h_size_flags() & SIZE_EXPAND) {
+ r.size.width = MAX(size.width, minsize.width);
}
- if (vertical_scroll_mode == SCROLL_MODE_DISABLED || (!v_scroll->is_visible_in_tree() && c->get_v_size_flags() & SIZE_EXPAND)) {
- r.position.y = 0;
- if (c->get_v_size_flags() & SIZE_EXPAND) {
- r.size.height = MAX(size.height, minsize.height);
- } else {
- r.size.height = minsize.height;
- }
+ if (c->get_v_size_flags() & SIZE_EXPAND) {
+ r.size.height = MAX(size.height, minsize.height);
}
r.position += ofs;
if (rtl && v_scroll->is_visible_in_tree() && v_scroll->get_parent() == this) {
@@ -329,18 +329,16 @@ void ScrollContainer::_notification(int p_what) {
Viewport *viewport = get_viewport();
ERR_FAIL_COND(!viewport);
viewport->connect("gui_focus_changed", callable_mp(this, &ScrollContainer::_gui_focus_changed));
- _update_dimensions();
+ _reposition_children();
} break;
case NOTIFICATION_SORT_CHILDREN: {
- _update_dimensions();
+ _reposition_children();
} break;
case NOTIFICATION_DRAW: {
Ref<StyleBox> sb = get_theme_stylebox(SNAME("bg"));
draw_style_box(sb, Rect2(Vector2(), get_size()));
-
- update_scrollbars();
} break;
case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
@@ -418,36 +416,25 @@ void ScrollContainer::update_scrollbars() {
Ref<StyleBox> sb = get_theme_stylebox(SNAME("bg"));
size -= sb->get_minimum_size();
- Size2 hmin;
- Size2 vmin;
- if (horizontal_scroll_mode != SCROLL_MODE_DISABLED) {
- hmin = h_scroll->get_combined_minimum_size();
- }
- if (vertical_scroll_mode != SCROLL_MODE_DISABLED) {
- vmin = v_scroll->get_combined_minimum_size();
- }
-
- Size2 min = child_max_size;
+ Size2 hmin = h_scroll->get_combined_minimum_size();
+ Size2 vmin = v_scroll->get_combined_minimum_size();
- bool hide_scroll_h = horizontal_scroll_mode != SCROLL_MODE_SHOW_ALWAYS && (horizontal_scroll_mode == SCROLL_MODE_DISABLED || horizontal_scroll_mode == SCROLL_MODE_SHOW_NEVER || (horizontal_scroll_mode == SCROLL_MODE_AUTO && min.width <= size.width));
- bool hide_scroll_v = vertical_scroll_mode != SCROLL_MODE_SHOW_ALWAYS && (vertical_scroll_mode == SCROLL_MODE_DISABLED || vertical_scroll_mode == SCROLL_MODE_SHOW_NEVER || (vertical_scroll_mode == SCROLL_MODE_AUTO && min.height <= size.height));
+ h_scroll->set_visible(horizontal_scroll_mode == SCROLL_MODE_SHOW_ALWAYS || (horizontal_scroll_mode == SCROLL_MODE_AUTO && largest_child_min_size.width > size.width));
+ v_scroll->set_visible(vertical_scroll_mode == SCROLL_MODE_SHOW_ALWAYS || (vertical_scroll_mode == SCROLL_MODE_AUTO && largest_child_min_size.height > size.height));
- h_scroll->set_max(min.width);
- h_scroll->set_page(size.width - (hide_scroll_v ? 0 : vmin.width));
- h_scroll->set_visible(!hide_scroll_h);
+ h_scroll->set_max(largest_child_min_size.width);
+ h_scroll->set_page((v_scroll->is_visible() && v_scroll->get_parent() == this) ? size.width - vmin.width : size.width);
- v_scroll->set_max(min.height);
- v_scroll->set_page(size.height - (hide_scroll_h ? 0 : hmin.height));
- v_scroll->set_visible(!hide_scroll_v);
+ v_scroll->set_max(largest_child_min_size.height);
+ v_scroll->set_page((h_scroll->is_visible() && h_scroll->get_parent() == this) ? size.height - hmin.height : size.height);
// Avoid scrollbar overlapping.
- h_scroll->set_anchor_and_offset(SIDE_RIGHT, ANCHOR_END, hide_scroll_v ? 0 : -vmin.width);
- v_scroll->set_anchor_and_offset(SIDE_BOTTOM, ANCHOR_END, hide_scroll_h ? 0 : -hmin.height);
+ h_scroll->set_anchor_and_offset(SIDE_RIGHT, ANCHOR_END, (v_scroll->is_visible() && v_scroll->get_parent() == this) ? -vmin.width : 0);
+ v_scroll->set_anchor_and_offset(SIDE_BOTTOM, ANCHOR_END, (h_scroll->is_visible() && h_scroll->get_parent() == this) ? -hmin.height : 0);
}
void ScrollContainer::_scroll_moved(float) {
queue_sort();
- update();
};
void ScrollContainer::set_h_scroll(int p_pos) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-20 17:06:46 +0000