////  ScriptEditorWidget.cpp//  interface/src/ui////  Created by Thijs Wenker on 4/14/14.//  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 "ui_scriptEditorWidget.h"#include "ScriptEditorWidget.h" #include <QGridLayout>#include <QFrame>#include <QLayoutItem>#include <QMainWindow>#include <QMessageBox>#include <QPalette>#include <QScrollBar>#include <QSizePolicy>#include <QTimer>#include <QWidget> #include "Application.h"#include "ScriptHighlighting.h" ScriptEditorWidget::ScriptEditorWidget() :    _scriptEditorWidgetUI(new Ui::ScriptEditorWidget),    _scriptEngine(NULL){    _scriptEditorWidgetUI->setupUi(this);     connect(_scriptEditorWidgetUI->scriptEdit->document(), SIGNAL(modificationChanged(bool)), this, SIGNAL(scriptModified()));    connect(_scriptEditorWidgetUI->scriptEdit->document(), SIGNAL(contentsChanged()), this, SLOT(onScriptModified()));     // remove the title bar (see the Qt docs on setTitleBarWidget)    setTitleBarWidget(new QWidget());    QFontMetrics fm(_scriptEditorWidgetUI->scriptEdit->font());    _scriptEditorWidgetUI->scriptEdit->setTabStopWidth(fm.width('0') * 4);    ScriptHighlighting* highlighting = new ScriptHighlighting(_scriptEditorWidgetUI->scriptEdit->document());    QTimer::singleShot(0, _scriptEditorWidgetUI->scriptEdit, SLOT(setFocus()));} ScriptEditorWidget::~ScriptEditorWidget() {    delete _scriptEditorWidgetUI;} void ScriptEditorWidget::onScriptModified() {    if(_scriptEditorWidgetUI->onTheFlyCheckBox->isChecked() && isRunning()) {        setRunning(false);        setRunning(true);    }} bool ScriptEditorWidget::isModified() {    return _scriptEditorWidgetUI->scriptEdit->document()->isModified();} bool ScriptEditorWidget::isRunning() {    return (_scriptEngine != NULL) ? _scriptEngine->isRunning() : false;} bool ScriptEditorWidget::setRunning(bool run) {    if (run && !save()) {        return false;    }    // Clean-up old connections.    disconnect(this, SLOT(onScriptError(const QString&)));    disconnect(this, SLOT(onScriptPrint(const QString&)));     if (run) {        _scriptEngine = Application::getInstance()->loadScript(_currentScript, false);        connect(_scriptEngine, SIGNAL(runningStateChanged()), this, SIGNAL(runningStateChanged()));         // Make new connections.        connect(_scriptEngine, SIGNAL(errorMessage(const QString&)), this, SLOT(onScriptError(const QString&)));        connect(_scriptEngine, SIGNAL(printedMessage(const QString&)), this, SLOT(onScriptPrint(const QString&)));    } else {        Application::getInstance()->stopScript(_currentScript);        _scriptEngine = NULL;    }    return true;} bool ScriptEditorWidget::saveFile(const QString &scriptPath) {     QFile file(scriptPath);     if (!file.open(QFile::WriteOnly | QFile::Text)) {         QMessageBox::warning(this, tr("Interface"), tr("Cannot write script %1:\n%2.").arg(scriptPath)             .arg(file.errorString()));         return false;     }      QTextStream out(&file);     out << _scriptEditorWidgetUI->scriptEdit->toPlainText();      setScriptFile(scriptPath);     return true;} void ScriptEditorWidget::loadFile(const QString& scriptPath) {    QFile file(scriptPath);    if (!file.open(QFile::ReadOnly | QFile::Text)) {        QMessageBox::warning(this, tr("Interface"), tr("Cannot read script %1:\n%2.").arg(scriptPath).arg(file.errorString()));        return;    }     QTextStream in(&file);    _scriptEditorWidgetUI->scriptEdit->setPlainText(in.readAll());     setScriptFile(scriptPath);     disconnect(this, SLOT(onScriptError(const QString&)));    disconnect(this, SLOT(onScriptPrint(const QString&)));     _scriptEngine = Application::getInstance()->getScriptEngine(scriptPath);    if (_scriptEngine != NULL) {        connect(_scriptEngine, SIGNAL(runningStateChanged()), this, SIGNAL(runningStateChanged()));        connect(_scriptEngine, SIGNAL(errorMessage(const QString&)), this, SLOT(onScriptError(const QString&)));        connect(_scriptEngine, SIGNAL(printedMessage(const QString&)), this, SLOT(onScriptPrint(const QString&)));    }} bool ScriptEditorWidget::save() {    return _currentScript.isEmpty() ? saveAs() : saveFile(_currentScript);} bool ScriptEditorWidget::saveAs() {    QString fileName = QFileDialog::getSaveFileName(this, tr("Save script"), QString(), tr("Javascript (*.js)"));    return !fileName.isEmpty() ? saveFile(fileName) : false;} void ScriptEditorWidget::setScriptFile(const QString& scriptPath) {    _currentScript = scriptPath;    _scriptEditorWidgetUI->scriptEdit->document()->setModified(false);    setWindowModified(false);     emit scriptnameChanged();} bool ScriptEditorWidget::questionSave() {    if (_scriptEditorWidgetUI->scriptEdit->document()->isModified()) {        QMessageBox::StandardButton button = QMessageBox::warning(this, tr("Interface"),            tr("The script has been modified.\nDo you want to save your changes?"), QMessageBox::Save | QMessageBox::Discard |            QMessageBox::Cancel, QMessageBox::Save);        return button == QMessageBox::Save ? save() : (button == QMessageBox::Cancel ? false : true);    }    return true;} void ScriptEditorWidget::onScriptError(const QString& message) {    _scriptEditorWidgetUI->debugText->appendPlainText("ERROR: " + message);} void ScriptEditorWidget::onScriptPrint(const QString& message) {    _scriptEditorWidgetUI->debugText->appendPlainText("> " + message);}