////  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 <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"#include "ui_scriptEditorWidget.h" #include "ScriptEditorWidget.h" ScriptEditorWidget::ScriptEditorWidget() :    ui(new Ui::ScriptEditorWidget){    ui->setupUi(this);     scriptEngine = NULL;     connect(ui->scriptEdit->document(), SIGNAL(modificationChanged(bool)), this, SIGNAL(scriptModified()));    connect(ui->scriptEdit->document(), SIGNAL(contentsChanged()), this, SLOT(onScriptModified()));     // remove the title bar (see the Qt docs on setTitleBarWidget)    setTitleBarWidget(new QWidget());    QFontMetrics fm(this->ui->scriptEdit->font());    this->ui->scriptEdit->setTabStopWidth(fm.width('0') * 4);    ScriptHighlighting* highlighting = new ScriptHighlighting(this->ui->scriptEdit->document());    QTimer::singleShot(0, this->ui->scriptEdit, SLOT(setFocus()));} ScriptEditorWidget::~ScriptEditorWidget() {    delete ui;} void ScriptEditorWidget::onScriptModified() {    if(ui->onTheFlyCheckBox->isChecked() && isRunning()) {        setRunning(false);        setRunning(true);    }} bool ScriptEditorWidget::isModified() {    return ui->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(this->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(this->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 << ui->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);    ui->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;    ui->scriptEdit->document()->setModified(false);    setWindowModified(false);     emit scriptnameChanged();} bool ScriptEditorWidget::questionSave() {    if (ui->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) {    ui->debugText->appendPlainText("ERROR: "+ message);} void ScriptEditorWidget::onScriptPrint(const QString& message) {    ui->debugText->appendPlainText("> "+message);}