diff --git a/scene/gui/base_button.cpp b/scene/gui/base_button.cpp index 5f541ea16aa..1c91e998863 100644 --- a/scene/gui/base_button.cpp +++ b/scene/gui/base_button.cpp @@ -247,7 +247,7 @@ void BaseButton::_notification(int p_what) { status.hovering = false; update(); } - if (p_what == NOTIFICATION_DRAG_BEGIN) { + if (p_what == NOTIFICATION_DRAG_BEGIN || p_what == NOTIFICATION_SCROLL_BEGIN) { if (status.press_attempt) { status.press_attempt = false; diff --git a/scene/gui/control.cpp b/scene/gui/control.cpp index a5883863cda..d1244bebf8d 100644 --- a/scene/gui/control.cpp +++ b/scene/gui/control.cpp @@ -2886,6 +2886,8 @@ void Control::_bind_methods() { BIND_CONSTANT(NOTIFICATION_FOCUS_EXIT); BIND_CONSTANT(NOTIFICATION_THEME_CHANGED); BIND_CONSTANT(NOTIFICATION_MODAL_CLOSE); + BIND_CONSTANT(NOTIFICATION_SCROLL_BEGIN); + BIND_CONSTANT(NOTIFICATION_SCROLL_END); BIND_ENUM_CONSTANT(CURSOR_ARROW); BIND_ENUM_CONSTANT(CURSOR_IBEAM); diff --git a/scene/gui/control.h b/scene/gui/control.h index 51325f27b5a..75813ce8218 100644 --- a/scene/gui/control.h +++ b/scene/gui/control.h @@ -271,6 +271,8 @@ public: NOTIFICATION_FOCUS_EXIT = 44, NOTIFICATION_THEME_CHANGED = 45, NOTIFICATION_MODAL_CLOSE = 46, + NOTIFICATION_SCROLL_BEGIN = 47, + NOTIFICATION_SCROLL_END = 48, }; diff --git a/scene/gui/scroll_container.cpp b/scene/gui/scroll_container.cpp index 33b3d464864..217df275b93 100644 --- a/scene/gui/scroll_container.cpp +++ b/scene/gui/scroll_container.cpp @@ -75,6 +75,12 @@ void ScrollContainer::_cancel_drag() { drag_accum = Vector2(); last_drag_accum = Vector2(); drag_from = Vector2(); + + if (beyond_deadzone) { + emit_signal("scroll_ended"); + propagate_notification(NOTIFICATION_SCROLL_END); + beyond_deadzone = false; + } } void ScrollContainer::_gui_input(const Ref &p_gui_input) { @@ -122,13 +128,7 @@ void ScrollContainer::_gui_input(const Ref &p_gui_input) { if (mb->is_pressed()) { if (drag_touching) { - set_physics_process(false); - drag_touching_deaccel = false; - drag_touching = false; - drag_speed = Vector2(); - drag_accum = Vector2(); - last_drag_accum = Vector2(); - drag_from = Vector2(); + _cancel_drag(); } if (true) { @@ -138,6 +138,7 @@ void ScrollContainer::_gui_input(const Ref &p_gui_input) { drag_from = Vector2(h_scroll->get_value(), v_scroll->get_value()); drag_touching = OS::get_singleton()->has_touchscreen_ui_hint(); drag_touching_deaccel = false; + beyond_deadzone = false; time_since_motion = 0; if (drag_touching) { set_physics_process(true); @@ -149,9 +150,7 @@ void ScrollContainer::_gui_input(const Ref &p_gui_input) { if (drag_touching) { if (drag_speed == Vector2()) { - drag_touching_deaccel = false; - drag_touching = false; - set_physics_process(false); + _cancel_drag(); } else { drag_touching_deaccel = true; @@ -168,17 +167,27 @@ void ScrollContainer::_gui_input(const Ref &p_gui_input) { Vector2 motion = Vector2(mm->get_relative().x, mm->get_relative().y); drag_accum -= motion; - Vector2 diff = drag_from + drag_accum; - if (scroll_h) - h_scroll->set_value(diff.x); - else - drag_accum.x = 0; - if (scroll_v) - v_scroll->set_value(diff.y); - else - drag_accum.y = 0; - time_since_motion = 0; + if (beyond_deadzone || scroll_h && Math::abs(drag_accum.x) > deadzone || scroll_v && Math::abs(drag_accum.y) > deadzone) { + if (!beyond_deadzone) { + propagate_notification(NOTIFICATION_SCROLL_BEGIN); + emit_signal("scroll_started"); + + beyond_deadzone = true; + // resetting drag_accum here ensures smooth scrolling after reaching deadzone + drag_accum = -motion; + } + Vector2 diff = drag_from + drag_accum; + if (scroll_h) + h_scroll->set_value(diff.x); + else + drag_accum.x = 0; + if (scroll_v) + v_scroll->set_value(diff.y); + else + drag_accum.y = 0; + time_since_motion = 0; + } } } @@ -323,9 +332,7 @@ void ScrollContainer::_notification(int p_what) { drag_speed = Vector2(sgn_x * val_x, sgn_y * val_y); if (turnoff_h && turnoff_v) { - set_physics_process(false); - drag_touching = false; - drag_touching_deaccel = false; + _cancel_drag(); } } else { @@ -430,6 +437,14 @@ void ScrollContainer::set_h_scroll(int p_pos) { _cancel_drag(); } +int ScrollContainer::get_deadzone() const { + return deadzone; +} + +void ScrollContainer::set_deadzone(int p_deadzone) { + deadzone = p_deadzone; +} + String ScrollContainer::get_configuration_warning() const { int found = 0; @@ -466,12 +481,20 @@ void ScrollContainer::_bind_methods() { 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); ClassDB::bind_method(D_METHOD("get_v_scroll"), &ScrollContainer::get_v_scroll); + ClassDB::bind_method(D_METHOD("set_deadzone", "deadzone"), &ScrollContainer::set_deadzone); + ClassDB::bind_method(D_METHOD("get_deadzone"), &ScrollContainer::get_deadzone); + + ADD_SIGNAL(MethodInfo("scroll_started")); + ADD_SIGNAL(MethodInfo("scroll_ended")); ADD_GROUP("Scroll", "scroll_"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_horizontal_enabled"), "set_enable_h_scroll", "is_h_scroll_enabled"); ADD_PROPERTY(PropertyInfo(Variant::INT, "scroll_horizontal"), "set_h_scroll", "get_h_scroll"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_vertical_enabled"), "set_enable_v_scroll", "is_v_scroll_enabled"); ADD_PROPERTY(PropertyInfo(Variant::INT, "scroll_vertical"), "set_v_scroll", "get_v_scroll"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "scroll_deadzone"), "set_deadzone", "get_deadzone"); + + GLOBAL_DEF("gui/common/default_scroll_deadzone", 0); }; ScrollContainer::ScrollContainer() { @@ -490,8 +513,11 @@ ScrollContainer::ScrollContainer() { drag_speed = Vector2(); drag_touching = false; drag_touching_deaccel = false; + beyond_deadzone = false; scroll_h = true; scroll_v = true; + deadzone = GLOBAL_GET("gui/common/default_scroll_deadzone"); + set_clip_contents(true); }; diff --git a/scene/gui/scroll_container.h b/scene/gui/scroll_container.h index 6e3387918b9..3fe1ed447a7 100644 --- a/scene/gui/scroll_container.h +++ b/scene/gui/scroll_container.h @@ -56,10 +56,13 @@ class ScrollContainer : public Container { bool drag_touching; bool drag_touching_deaccel; bool click_handled; + bool beyond_deadzone; bool scroll_h; bool scroll_v; + int deadzone; + void _cancel_drag(); protected: @@ -86,6 +89,9 @@ public: void set_enable_v_scroll(bool p_enable); bool is_v_scroll_enabled() const; + int get_deadzone() const; + void set_deadzone(int p_deadzone); + virtual bool clips_input() const; virtual String get_configuration_warning() const;