godot/scene/gui/view_panner.h
2022-01-24 22:21:19 +01:00

84 lines
3.4 KiB
C++

/*************************************************************************/
/* 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