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Diffstat (limited to 'scene/gui/scroll_container.cpp')
-rw-r--r--scene/gui/scroll_container.cpp120
1 files changed, 51 insertions, 69 deletions
diff --git a/scene/gui/scroll_container.cpp b/scene/gui/scroll_container.cpp
index fb17adf96e..b72b913af0 100644
--- a/scene/gui/scroll_container.cpp
+++ b/scene/gui/scroll_container.cpp
@@ -33,24 +33,24 @@
#include "scene/main/window.h"
bool ScrollContainer::clips_input() const {
-
return true;
}
Size2 ScrollContainer::get_minimum_size() const {
-
Ref<StyleBox> sb = get_theme_stylebox("bg");
Size2 min_size;
for (int i = 0; i < get_child_count(); i++) {
-
Control *c = Object::cast_to<Control>(get_child(i));
- if (!c)
+ if (!c) {
continue;
- if (c->is_set_as_toplevel())
+ }
+ if (c->is_set_as_toplevel()) {
continue;
- if (c == h_scroll || c == v_scroll)
+ }
+ if (c == h_scroll || c == v_scroll) {
continue;
+ }
Size2 minsize = c->get_combined_minimum_size();
if (!scroll_h) {
@@ -88,14 +88,12 @@ 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() || mb->get_shift())) {
@@ -126,17 +124,19 @@ 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)
+ if (v_scroll->get_value() != prev_v_scroll || h_scroll->get_value() != prev_h_scroll) {
accept_event(); //accept event if scroll changed
+ }
- if (!DisplayServer::get_singleton()->screen_is_touchscreen(DisplayServer::get_singleton()->window_get_current_screen(get_viewport()->get_window_id())))
+ if (!DisplayServer::get_singleton()->screen_is_touchscreen(DisplayServer::get_singleton()->window_get_current_screen(get_viewport()->get_window_id()))) {
return;
+ }
- if (mb->get_button_index() != BUTTON_LEFT)
+ if (mb->get_button_index() != BUTTON_LEFT) {
return;
+ }
if (mb->is_pressed()) {
-
if (drag_touching) {
_cancel_drag();
}
@@ -156,11 +156,9 @@ void ScrollContainer::_gui_input(const Ref<InputEvent> &p_gui_input) {
} else {
if (drag_touching) {
-
if (drag_speed == Vector2()) {
_cancel_drag();
} else {
-
drag_touching_deaccel = true;
}
}
@@ -170,9 +168,7 @@ void ScrollContainer::_gui_input(const Ref<InputEvent> &p_gui_input) {
Ref<InputEventMouseMotion> mm = p_gui_input;
if (mm.is_valid()) {
-
if (drag_touching && !drag_touching_deaccel) {
-
Vector2 motion = Vector2(mm->get_relative().x, mm->get_relative().y);
drag_accum -= motion;
@@ -186,14 +182,16 @@ void ScrollContainer::_gui_input(const Ref<InputEvent> &p_gui_input) {
drag_accum = -motion;
}
Vector2 diff = drag_from + drag_accum;
- if (scroll_h)
+ if (scroll_h) {
h_scroll->set_value(diff.x);
- else
+ } else {
drag_accum.x = 0;
- if (scroll_v)
+ }
+ if (scroll_v) {
v_scroll->set_value(diff.y);
- else
+ } else {
drag_accum.y = 0;
+ }
time_since_motion = 0;
}
}
@@ -201,7 +199,6 @@ void ScrollContainer::_gui_input(const Ref<InputEvent> &p_gui_input) {
Ref<InputEventPanGesture> pan_gesture = p_gui_input;
if (pan_gesture.is_valid()) {
-
if (h_scroll->is_visible_in_tree()) {
h_scroll->set_value(h_scroll->get_value() + h_scroll->get_page() * pan_gesture->get_delta().x / 8);
}
@@ -210,12 +207,12 @@ 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)
+ 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() {
-
Size2 hmin = h_scroll->get_combined_minimum_size();
Size2 vmin = v_scroll->get_combined_minimum_size();
@@ -234,7 +231,6 @@ void ScrollContainer::_update_scrollbar_position() {
}
void ScrollContainer::_ensure_focused_visible(Control *p_control) {
-
if (!follow_focus) {
return;
}
@@ -259,19 +255,15 @@ void ScrollContainer::_ensure_focused_visible(Control *p_control) {
}
void ScrollContainer::_notification(int p_what) {
-
if (p_what == NOTIFICATION_ENTER_TREE || p_what == NOTIFICATION_THEME_CHANGED) {
-
call_deferred("_update_scrollbar_position");
};
if (p_what == NOTIFICATION_READY) {
-
get_viewport()->connect("gui_focus_changed", callable_mp(this, &ScrollContainer::_ensure_focused_visible));
}
if (p_what == NOTIFICATION_SORT_CHILDREN) {
-
child_max_size = Size2(0, 0);
Size2 size = get_size();
Point2 ofs;
@@ -280,21 +272,25 @@ void ScrollContainer::_notification(int p_what) {
size -= sb->get_minimum_size();
ofs += sb->get_offset();
- if (h_scroll->is_visible_in_tree() && h_scroll->get_parent() == this) //scrolls may have been moved out for reasons
+ if (h_scroll->is_visible_in_tree() && h_scroll->get_parent() == this) { //scrolls may have been moved out for reasons
size.y -= h_scroll->get_minimum_size().y;
+ }
- if (v_scroll->is_visible_in_tree() && v_scroll->get_parent() == this) //scrolls may have been moved out for reasons
+ if (v_scroll->is_visible_in_tree() && v_scroll->get_parent() == this) { //scrolls may have been moved out for reasons
size.x -= v_scroll->get_minimum_size().x;
+ }
for (int i = 0; i < get_child_count(); i++) {
-
Control *c = Object::cast_to<Control>(get_child(i));
- if (!c)
+ if (!c) {
continue;
- if (c->is_set_as_toplevel())
+ }
+ if (c->is_set_as_toplevel()) {
continue;
- if (c == h_scroll || c == v_scroll)
+ }
+ if (c == h_scroll || c == v_scroll) {
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);
@@ -302,17 +298,19 @@ void ScrollContainer::_notification(int p_what) {
Rect2 r = Rect2(-scroll, minsize);
if (!scroll_h || (!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)
+ if (c->get_h_size_flags() & SIZE_EXPAND) {
r.size.width = MAX(size.width, minsize.width);
- else
+ } else {
r.size.width = minsize.width;
+ }
}
if (!scroll_v || (!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)
+ if (c->get_v_size_flags() & SIZE_EXPAND) {
r.size.height = MAX(size.height, minsize.height);
- else
+ } else {
r.size.height = minsize.height;
+ }
}
r.position += ofs;
fit_child_in_rect(c, r);
@@ -322,7 +320,6 @@ void ScrollContainer::_notification(int p_what) {
};
if (p_what == NOTIFICATION_DRAW) {
-
Ref<StyleBox> sb = get_theme_stylebox("bg");
draw_style_box(sb, Rect2(Vector2(), get_size()));
@@ -330,11 +327,8 @@ void ScrollContainer::_notification(int p_what) {
}
if (p_what == NOTIFICATION_INTERNAL_PHYSICS_PROCESS) {
-
if (drag_touching) {
-
if (drag_touching_deaccel) {
-
Vector2 pos = Vector2(h_scroll->get_value(), v_scroll->get_value());
pos += drag_speed * get_physics_process_delta_time();
@@ -359,10 +353,12 @@ void ScrollContainer::_notification(int p_what) {
turnoff_v = true;
}
- if (scroll_h)
+ if (scroll_h) {
h_scroll->set_value(pos.x);
- if (scroll_v)
+ }
+ if (scroll_v) {
v_scroll->set_value(pos.y);
+ }
float sgn_x = drag_speed.x < 0 ? -1 : 1;
float val_x = Math::abs(drag_speed.x);
@@ -387,9 +383,7 @@ void ScrollContainer::_notification(int p_what) {
}
} else {
-
if (time_since_motion == 0 || time_since_motion > 0.1) {
-
Vector2 diff = drag_accum - last_drag_accum;
last_drag_accum = drag_accum;
drag_speed = diff / get_physics_process_delta_time();
@@ -402,7 +396,6 @@ void ScrollContainer::_notification(int p_what) {
};
void ScrollContainer::update_scrollbars() {
-
Size2 size = get_size();
Ref<StyleBox> sb = get_theme_stylebox("bg");
size -= sb->get_minimum_size();
@@ -422,11 +415,9 @@ void ScrollContainer::update_scrollbars() {
bool hide_scroll_h = !scroll_h || min.width <= size.width;
if (hide_scroll_v) {
-
v_scroll->hide();
scroll.y = 0;
} else {
-
v_scroll->show();
v_scroll->set_max(min.height);
if (hide_scroll_h) {
@@ -439,11 +430,9 @@ void ScrollContainer::update_scrollbars() {
}
if (hide_scroll_h) {
-
h_scroll->hide();
scroll.x = 0;
} else {
-
h_scroll->show();
h_scroll->set_max(min.width);
if (hide_scroll_v) {
@@ -461,7 +450,6 @@ void ScrollContainer::update_scrollbars() {
}
void ScrollContainer::_scroll_moved(float) {
-
scroll.x = h_scroll->get_value();
scroll.y = v_scroll->get_value();
queue_sort();
@@ -480,7 +468,6 @@ void ScrollContainer::set_enable_h_scroll(bool p_enable) {
}
bool ScrollContainer::is_h_scroll_enabled() const {
-
return scroll_h;
}
@@ -495,26 +482,23 @@ void ScrollContainer::set_enable_v_scroll(bool p_enable) {
}
bool ScrollContainer::is_v_scroll_enabled() const {
-
return scroll_v;
}
int ScrollContainer::get_v_scroll() const {
-
return v_scroll->get_value();
}
-void ScrollContainer::set_v_scroll(int p_pos) {
+void ScrollContainer::set_v_scroll(int p_pos) {
v_scroll->set_value(p_pos);
_cancel_drag();
}
int ScrollContainer::get_h_scroll() const {
-
return h_scroll->get_value();
}
-void ScrollContainer::set_h_scroll(int p_pos) {
+void ScrollContainer::set_h_scroll(int p_pos) {
h_scroll->set_value(p_pos);
_cancel_drag();
}
@@ -536,40 +520,39 @@ void ScrollContainer::set_follow_focus(bool p_follow) {
}
String ScrollContainer::get_configuration_warning() const {
-
int found = 0;
for (int i = 0; i < get_child_count(); i++) {
-
Control *c = Object::cast_to<Control>(get_child(i));
- if (!c)
+ if (!c) {
continue;
- if (c->is_set_as_toplevel())
+ }
+ if (c->is_set_as_toplevel()) {
continue;
- if (c == h_scroll || c == v_scroll)
+ }
+ if (c == h_scroll || c == v_scroll) {
continue;
+ }
found++;
}
- if (found != 1)
+ if (found != 1) {
return TTR("ScrollContainer is intended to work with a single child control.\nUse a container as child (VBox, HBox, etc.), or a Control and set the custom minimum size manually.");
- else
+ } else {
return "";
+ }
}
HScrollBar *ScrollContainer::get_h_scrollbar() {
-
return h_scroll;
}
VScrollBar *ScrollContainer::get_v_scrollbar() {
-
return v_scroll;
}
void ScrollContainer::_bind_methods() {
-
ClassDB::bind_method(D_METHOD("_gui_input"), &ScrollContainer::_gui_input);
ClassDB::bind_method(D_METHOD("set_enable_h_scroll", "enable"), &ScrollContainer::set_enable_h_scroll);
ClassDB::bind_method(D_METHOD("is_h_scroll_enabled"), &ScrollContainer::is_h_scroll_enabled);
@@ -604,7 +587,6 @@ void ScrollContainer::_bind_methods() {
};
ScrollContainer::ScrollContainer() {
-
h_scroll = memnew(HScrollBar);
h_scroll->set_name("_h_scroll");
add_child(h_scroll);