/*************************************************************************/ /* scroll_container.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #ifndef SCROLL_CONTAINER_H #define SCROLL_CONTAINER_H #include "container.h" #include "scroll_bar.h" class ScrollContainer : public Container { GDCLASS(ScrollContainer, Container); public: enum ScrollMode { SCROLL_MODE_DISABLED = 0, SCROLL_MODE_AUTO, SCROLL_MODE_SHOW_ALWAYS, SCROLL_MODE_SHOW_NEVER, }; private: HScrollBar *h_scroll = nullptr; VScrollBar *v_scroll = nullptr; mutable Size2 largest_child_min_size; // The largest one among the min sizes of all available child controls. void update_scrollbars(); Vector2 drag_speed; Vector2 drag_accum; Vector2 drag_from; Vector2 last_drag_accum; float time_since_motion = 0.0f; bool drag_touching = false; bool drag_touching_deaccel = false; bool beyond_deadzone = false; ScrollMode horizontal_scroll_mode = SCROLL_MODE_AUTO; ScrollMode vertical_scroll_mode = SCROLL_MODE_AUTO; int deadzone = 0; bool follow_focus = false; void _cancel_drag(); protected: Size2 get_minimum_size() const override; void _gui_focus_changed(Control *p_control); void _reposition_children(); void _notification(int p_what); void _scroll_moved(float); static void _bind_methods(); bool _updating_scrollbars = false; void _update_scrollbar_position(); public: virtual void gui_input(const Ref<InputEvent> &p_gui_input) override; void set_h_scroll(int p_pos); int get_h_scroll() const; void set_v_scroll(int p_pos); int get_v_scroll() const; void set_horizontal_scroll_mode(ScrollMode p_mode); ScrollMode get_horizontal_scroll_mode() const; void set_vertical_scroll_mode(ScrollMode p_mode); ScrollMode get_vertical_scroll_mode() const; int get_deadzone() const; void set_deadzone(int p_deadzone); bool is_following_focus() const; void set_follow_focus(bool p_follow); HScrollBar *get_h_scroll_bar(); VScrollBar *get_v_scroll_bar(); void ensure_control_visible(Control *p_control); TypedArray<String> get_configuration_warnings() const override; ScrollContainer(); }; VARIANT_ENUM_CAST(ScrollContainer::ScrollMode); #endif // SCROLL_CONTAINER_H