godot/editor/gui/editor_title_bar.cpp

/**************************************************************************/
/*  editor_title_bar.cpp                                                  */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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/* Permission is hereby granted, free of charge, to any person obtaining  */
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/* "Software"), to deal in the Software without restriction, including    */
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/* distribute, sublicense, and/or sell copies of the Software, and to     */
/* permit persons to whom the Software is furnished to do so, subject to  */
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/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
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#include "editor_title_bar.h"

void EditorTitleBar::gui_input(const Ref<InputEvent> &p_event) {
	if (!can_move) {
		return;
	}

	Ref<InputEventMouseMotion> mm = p_event;
	if (mm.is_valid() && moving) {
		if (mm->get_button_mask().has_flag(MouseButtonMask::LEFT)) {
			Window *w = Object::cast_to<Window>(get_viewport());
			if (w) {
				Point2 mouse = DisplayServer::get_singleton()->mouse_get_position();
				w->set_position(mouse - click_pos);
			}
		} else {
			moving = false;
		}
	}

	Ref<InputEventMouseButton> mb = p_event;
	if (mb.is_valid() && has_point(mb->get_position())) {
		Window *w = Object::cast_to<Window>(get_viewport());
		if (w) {
			if (mb->get_button_index() == MouseButton::LEFT) {
				if (mb->is_pressed()) {
					if (DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_WINDOW_DRAG)) {
						DisplayServer::get_singleton()->window_start_drag(w->get_window_id());
					} else {
						click_pos = DisplayServer::get_singleton()->mouse_get_position() - w->get_position();
						moving = true;
					}
				} else {
					moving = false;
				}
			}
			if (mb->get_button_index() == MouseButton::LEFT && mb->is_double_click() && mb->is_pressed()) {
				if (DisplayServer::get_singleton()->window_maximize_on_title_dbl_click()) {
					if (w->get_mode() == Window::MODE_WINDOWED) {
						w->set_mode(Window::MODE_MAXIMIZED);
					} else if (w->get_mode() == Window::MODE_MAXIMIZED) {
						w->set_mode(Window::MODE_WINDOWED);
					}
				} else if (DisplayServer::get_singleton()->window_minimize_on_title_dbl_click()) {
					w->set_mode(Window::MODE_MINIMIZED);
				}
				moving = false;
			}
		}
	}
}

void EditorTitleBar::set_can_move_window(bool p_enabled) {
	can_move = p_enabled;
	set_process_input(can_move);
}

bool EditorTitleBar::get_can_move_window() const {
	return can_move;
}