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Improvements to scroll handling

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This commit is contained in:
Tomasz Chabora 2019-05-21 18:53:29 +02:00
parent 1d9bb73a15
commit 01491aaf32
4 changed files with 28 additions and 15 deletions
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5
scene/gui/item_list.cpp
View file

@ -470,6 +470,8 @@ Size2 ItemList::Item::get_icon_size() const {
void ItemList::_gui_input(const Ref<InputEvent> &p_event) {
double prev_scroll = scroll_bar->get_value();
Ref<InputEventMouseMotion> mm = p_event;
if (defer_select_single >= 0 && mm.is_valid()) {
defer_select_single = -1;
@ -767,6 +769,9 @@ void ItemList::_gui_input(const Ref<InputEvent> &p_event) {
scroll_bar->set_value(scroll_bar->get_value() + scroll_bar->get_page() * pan_gesture->get_delta().y / 8);
}
if (scroll_bar->get_value() != prev_scroll)
accept_event(); //accept event if scroll changed
}
void ItemList::ensure_current_is_visible() {

16
scene/gui/scroll_bar.cpp
View file

@ -53,29 +53,19 @@ void ScrollBar::_gui_input(Ref<InputEvent> p_event) {
if (b.is_valid()) {
accept_event();
if (b->get_button_index() == 5 && b->is_pressed()) {
if (b->get_button_index() == BUTTON_WHEEL_DOWN && b->is_pressed()) {
/*
if (orientation==VERTICAL)
set_val( get_val() + get_page() / 4.0 );
else
*/
set_value(get_value() + get_page() / 4.0);
accept_event();
}
if (b->get_button_index() == 4 && b->is_pressed()) {
if (b->get_button_index() == BUTTON_WHEEL_UP && b->is_pressed()) {
/*
if (orientation==HORIZONTAL)
set_val( get_val() - get_page() / 4.0 );
else
*/
set_value(get_value() - get_page() / 4.0);
accept_event();
}
if (b->get_button_index() != 1)
if (b->get_button_index() != BUTTON_LEFT)
return;
if (b->is_pressed()) {

13
scene/gui/scroll_container.cpp
View file

@ -88,13 +88,16 @@ void ScrollContainer::_cancel_drag() {
void ScrollContainer::_gui_input(const Ref<InputEvent> &p_gui_input) {
double prev_v_scroll = v_scroll->get_value();
double prev_h_scroll = h_scroll->get_value();
Ref<InputEventMouseButton> mb = p_gui_input;
if (mb.is_valid()) {
if (mb->get_button_index() == BUTTON_WHEEL_UP && mb->is_pressed()) {
// only horizontal is enabled, scroll horizontally
if (h_scroll->is_visible() && !v_scroll->is_visible()) {
if (h_scroll->is_visible() && (!v_scroll->is_visible() || mb->get_shift())) {
h_scroll->set_value(h_scroll->get_value() - h_scroll->get_page() / 8 * mb->get_factor());
} else if (v_scroll->is_visible_in_tree()) {
v_scroll->set_value(v_scroll->get_value() - v_scroll->get_page() / 8 * mb->get_factor());
@ -103,7 +106,7 @@ void ScrollContainer::_gui_input(const Ref<InputEvent> &p_gui_input) {
if (mb->get_button_index() == BUTTON_WHEEL_DOWN && mb->is_pressed()) {
// only horizontal is enabled, scroll horizontally
if (h_scroll->is_visible() && !v_scroll->is_visible()) {
if (h_scroll->is_visible() && (!v_scroll->is_visible() || mb->get_shift())) {
h_scroll->set_value(h_scroll->get_value() + h_scroll->get_page() / 8 * mb->get_factor());
} else if (v_scroll->is_visible()) {
v_scroll->set_value(v_scroll->get_value() + v_scroll->get_page() / 8 * mb->get_factor());
@ -122,6 +125,9 @@ void ScrollContainer::_gui_input(const Ref<InputEvent> &p_gui_input) {
}
}
if (v_scroll->get_value() != prev_v_scroll || h_scroll->get_value() != prev_h_scroll)
accept_event(); //accept event if scroll changed
if (!OS::get_singleton()->has_touchscreen_ui_hint())
return;
@ -204,6 +210,9 @@ void ScrollContainer::_gui_input(const Ref<InputEvent> &p_gui_input) {
v_scroll->set_value(v_scroll->get_value() + v_scroll->get_page() * pan_gesture->get_delta().y / 8);
}
}
if (v_scroll->get_value() != prev_v_scroll || h_scroll->get_value() != prev_h_scroll)
accept_event(); //accept event if scroll changed
}
void ScrollContainer::_update_scrollbar_position() {

9
scene/gui/text_edit.cpp
View file

@ -1812,6 +1812,9 @@ void TextEdit::_get_mouse_pos(const Point2i &p_mouse, int &r_row, int &r_col) co
void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
double prev_v_scroll = v_scroll->get_value();
double prev_h_scroll = h_scroll->get_value();
Ref<InputEventMouseButton> mb = p_gui_input;
if (mb.is_valid()) {
@ -2066,6 +2069,9 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
_scroll_down(delta);
}
h_scroll->set_value(h_scroll->get_value() + pan_gesture->get_delta().x * 100);
if (v_scroll->get_value() != prev_v_scroll || h_scroll->get_value() != prev_h_scroll)
accept_event(); //accept event if scroll changed
return;
}
@ -2109,6 +2115,9 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
}
}
if (v_scroll->get_value() != prev_v_scroll || h_scroll->get_value() != prev_h_scroll)
accept_event(); //accept event if scroll changed
Ref<InputEventKey> k = p_gui_input;
if (k.is_valid()) {