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Scroll ScrollContainer to focused children

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This commit is contained in:
Tomasz Chabora
2019-12-11 14:29:36 +01:00
parent cd9d513285
commit 77a8657633
4 changed files with 34 additions and 0 deletions
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24
scene/gui/scroll_container.cpp
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@@ -30,6 +30,7 @@
#include "scroll_container.h"
#include "core/os/os.h"
#include "scene/main/viewport.h"
bool ScrollContainer::clips_input() const {
@@ -232,6 +233,23 @@ void ScrollContainer::_update_scrollbar_position() {
v_scroll->raise();
}
void ScrollContainer::_ensure_focused_visible(Control *p_control) {
if (is_a_parent_of(p_control)) {
float right_margin = 0;
if (v_scroll->is_visible()) {
right_margin += v_scroll->get_size().x;
}
float bottom_margin = 0;
if (h_scroll->is_visible()) {
bottom_margin += h_scroll->get_size().y;
}
set_v_scroll(MAX(MIN(p_control->get_begin().y, get_v_scroll()), p_control->get_end().y - get_size().y + bottom_margin));
set_h_scroll(MAX(MIN(p_control->get_begin().x, get_h_scroll()), p_control->get_end().x - get_size().x + right_margin));
}
}
void ScrollContainer::_notification(int p_what) {
if (p_what == NOTIFICATION_ENTER_TREE || p_what == NOTIFICATION_THEME_CHANGED) {
@@ -239,6 +257,11 @@ void ScrollContainer::_notification(int p_what) {
call_deferred("_update_scrollbar_position");
};
if (p_what == NOTIFICATION_READY) {
get_viewport()->connect("gui_focus_changed", this, "_ensure_focused_visible");
}
if (p_what == NOTIFICATION_SORT_CHILDREN) {
child_max_size = Size2(0, 0);
@@ -521,6 +544,7 @@ void ScrollContainer::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_enable_v_scroll", "enable"), &ScrollContainer::set_enable_v_scroll);
ClassDB::bind_method(D_METHOD("is_v_scroll_enabled"), &ScrollContainer::is_v_scroll_enabled);
ClassDB::bind_method(D_METHOD("_update_scrollbar_position"), &ScrollContainer::_update_scrollbar_position);
ClassDB::bind_method(D_METHOD("_ensure_focused_visible"), &ScrollContainer::_ensure_focused_visible);
ClassDB::bind_method(D_METHOD("set_h_scroll", "value"), &ScrollContainer::set_h_scroll);
ClassDB::bind_method(D_METHOD("get_h_scroll"), &ScrollContainer::get_h_scroll);
ClassDB::bind_method(D_METHOD("set_v_scroll", "value"), &ScrollContainer::set_v_scroll);