////  ToolWindow.cpp//  interface/src/ui////  Created by Ryan Huffman on 11/13/14.//  Copyright 2014 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include "Application.h"#include "MainWindow.h"#include "ToolWindow.h"#include "UIUtil.h" const int DEFAULT_WIDTH = 300; ToolWindow::ToolWindow(QWidget* parent) :    QMainWindow(parent),    _selfHidden(false),    _hasShown(false),    _lastGeometry() { #   ifndef Q_OS_LINUX    setDockOptions(QMainWindow::ForceTabbedDocks);#   endif    Application::getInstance()->installEventFilter(this);} bool ToolWindow::event(QEvent* event) {    QEvent::Type type = event->type();    if (type == QEvent::Show) {        if (!_hasShown) {            _hasShown = true;             QMainWindow* mainWindow = Application::getInstance()->getWindow();            QRect mainGeometry = mainWindow->geometry();             int titleBarHeight = UIUtil::getWindowTitleBarHeight(this);            int topMargin = titleBarHeight;             _lastGeometry = QRect(mainGeometry.topLeft().x(),  mainGeometry.topLeft().y() + topMargin,                                  DEFAULT_WIDTH, mainGeometry.height() - topMargin);        }        setGeometry(_lastGeometry);        return true;    } else if (type == QEvent::Hide) {        _lastGeometry = geometry();        return true;    }     return QMainWindow::event(event);} bool ToolWindow::eventFilter(QObject* sender, QEvent* event) {#   ifndef Q_OS_LINUX    switch (event->type()) {        case QEvent::WindowStateChange:            if (Application::getInstance()->getWindow()->isMinimized()) {                // If we are already visible, we are self-hiding                _selfHidden = isVisible();                setVisible(false);            } else {                if (_selfHidden) {                    setVisible(true);                }            }            break;        case QEvent::ApplicationDeactivate:            _selfHidden = isVisible();            setVisible(false);            break;        case QEvent::ApplicationActivate:            if (_selfHidden) {                setVisible(true);            }            break;        default:            break;    }#   endif    return false;} void ToolWindow::onChildVisibilityUpdated(bool visible) {    if (!_selfHidden && visible) {        setVisible(true);    } else {        bool hasVisible = false;        QList<QDockWidget*> dockWidgets = findChildren<QDockWidget*>();        for (int i = 0; i < dockWidgets.count(); i++) {            if (dockWidgets[i]->isVisible()) {                hasVisible = true;                break;            }        }        // If a child was hidden and we don't have any children still visible, hide ourself.        if (!hasVisible) {            setVisible(false);        }    }} void ToolWindow::addDockWidget(Qt::DockWidgetArea area, QDockWidget* dockWidget) {    QList<QDockWidget*> dockWidgets = findChildren<QDockWidget*>();     QMainWindow::addDockWidget(area, dockWidget);     // We want to force tabbing, so retabify all of our widgets.    QDockWidget* lastDockWidget = dockWidget;    foreach (QDockWidget* nextDockWidget, dockWidgets) {        tabifyDockWidget(lastDockWidget, nextDockWidget);        lastDockWidget = nextDockWidget;    }     connect(dockWidget, &QDockWidget::visibilityChanged, this, &ToolWindow::onChildVisibilityUpdated);} void ToolWindow::addDockWidget(Qt::DockWidgetArea area, QDockWidget* dockWidget, Qt::Orientation orientation) {    QMainWindow::addDockWidget(area, dockWidget, orientation);     connect(dockWidget, &QDockWidget::visibilityChanged, this, &ToolWindow::onChildVisibilityUpdated);} void ToolWindow::removeDockWidget(QDockWidget* dockWidget) {    QMainWindow::removeDockWidget(dockWidget);     disconnect(dockWidget, &QDockWidget::visibilityChanged, this, &ToolWindow::onChildVisibilityUpdated);}