/*************************************************************************/ /* view_panner.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 VIEW_PANNER_H #define VIEW_PANNER_H #include "core/object/ref_counted.h" class InputEvent; class Shortcut; class ViewPanner : public RefCounted { GDCLASS(ViewPanner, RefCounted); public: enum ControlScheme { SCROLL_ZOOMS, SCROLL_PANS, }; private: bool is_dragging = false; bool pan_key_pressed = false; bool force_drag = false; bool enable_rmb = false; bool simple_panning_enabled = false; Ref<Shortcut> pan_view_shortcut; Callable scroll_callback; Callable pan_callback; Callable zoom_callback; void callback_helper(Callable p_callback, Vector<Variant> p_args); ControlScheme control_scheme = SCROLL_ZOOMS; public: void set_callbacks(Callable p_scroll_callback, Callable p_pan_callback, Callable p_zoom_callback); void set_control_scheme(ControlScheme p_scheme); void set_enable_rmb(bool p_enable); void set_pan_shortcut(Ref<Shortcut> p_shortcut); void set_simple_panning_enabled(bool p_enabled); void setup(ControlScheme p_scheme, Ref<Shortcut> p_shortcut, bool p_simple_panning); bool is_panning() const; void set_force_drag(bool p_force); bool gui_input(const Ref<InputEvent> &p_ev, Rect2 p_canvas_rect = Rect2()); void release_pan_key(); ViewPanner(); }; #endif // VIEW_PANNER_H