| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the examples of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** BSD License Usage |
| ** Alternatively, you may use this file under the terms of the BSD license |
| ** as follows: |
| ** |
| ** "Redistribution and use in source and binary forms, with or without |
| ** modification, are permitted provided that the following conditions are |
| ** met: |
| ** * Redistributions of source code must retain the above copyright |
| ** notice, this list of conditions and the following disclaimer. |
| ** * Redistributions in binary form must reproduce the above copyright |
| ** notice, this list of conditions and the following disclaimer in |
| ** the documentation and/or other materials provided with the |
| ** distribution. |
| ** * Neither the name of The Qt Company Ltd nor the names of its |
| ** contributors may be used to endorse or promote products derived |
| ** from this software without specific prior written permission. |
| ** |
| ** |
| ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "window.h" |
| #include "environment.h" |
| #include "context2d.h" |
| #include "qcontext2dcanvas.h" |
| #include <QHBoxLayout> |
| #include <QListWidget> |
| #include <QDir> |
| #include <QMessageBox> |
| |
| #ifndef QT_NO_SCRIPTTOOLS |
| #include <QAction> |
| #include <QApplication> |
| #include <QMainWindow> |
| #include <QPushButton> |
| #include <QVBoxLayout> |
| #include <QScriptEngineDebugger> |
| #endif |
| |
| static QString scriptsDir() |
| { |
| if (QFile::exists("./scripts")) |
| return "./scripts"; |
| return ":/scripts"; |
| } |
| |
| //! [0] |
| Window::Window(QWidget *parent) |
| : QWidget(parent) |
| #ifndef QT_NO_SCRIPTTOOLS |
| , m_debugger(0), m_debugWindow(0) |
| #endif |
| { |
| m_env = new Environment(this); |
| QObject::connect(m_env, SIGNAL(scriptError(QScriptValue)), |
| this, SLOT(reportScriptError(QScriptValue))); |
| |
| Context2D *context = new Context2D(this); |
| context->setSize(150, 150); |
| m_canvas = new QContext2DCanvas(context, m_env, this); |
| m_canvas->setFixedSize(context->size()); |
| m_canvas->setObjectName("tutorial"); |
| m_env->addCanvas(m_canvas); |
| //! [0] |
| |
| #ifndef QT_NO_SCRIPTTOOLS |
| QVBoxLayout *vbox = new QVBoxLayout(); |
| vbox->addWidget(m_canvas); |
| m_debugButton = new QPushButton(tr("Run in Debugger")); |
| connect(m_debugButton, SIGNAL(clicked()), this, SLOT(runInDebugger())); |
| vbox->addWidget(m_debugButton); |
| #endif |
| |
| QHBoxLayout *hbox = new QHBoxLayout(this); |
| m_view = new QListWidget(this); |
| m_view->setEditTriggers(QAbstractItemView::NoEditTriggers); |
| hbox->addWidget(m_view); |
| #ifndef QT_NO_SCRIPTTOOLS |
| hbox->addLayout(vbox); |
| #else |
| hbox->addWidget(m_canvas); |
| #endif |
| |
| //! [1] |
| QDir dir(scriptsDir()); |
| QFileInfoList entries = dir.entryInfoList(QStringList() << "*.js"); |
| for (int i = 0; i < entries.size(); ++i) |
| m_view->addItem(entries.at(i).fileName()); |
| connect(m_view, SIGNAL(currentItemChanged(QListWidgetItem*,QListWidgetItem*)), |
| this, SLOT(selectScript(QListWidgetItem*))); |
| //! [1] |
| |
| setWindowTitle(tr("Context 2D")); |
| } |
| |
| //! [2] |
| void Window::selectScript(QListWidgetItem *item) |
| { |
| QString fileName = item->text(); |
| runScript(fileName, /*debug=*/false); |
| } |
| //! [2] |
| |
| void Window::reportScriptError(const QScriptValue &error) |
| { |
| QMessageBox::warning(this, tr("Context 2D"), tr("Line %0: %1") |
| .arg(error.property("lineNumber").toInt32()) |
| .arg(error.toString())); |
| } |
| |
| #ifndef QT_NO_SCRIPTTOOLS |
| //! [3] |
| void Window::runInDebugger() |
| { |
| QListWidgetItem *item = m_view->currentItem(); |
| if (item) { |
| QString fileName = item->text(); |
| runScript(fileName, /*debug=*/true); |
| } |
| } |
| //! [3] |
| #endif |
| |
| //! [4] |
| void Window::runScript(const QString &fileName, bool debug) |
| { |
| QFile file(scriptsDir() + "/" + fileName); |
| file.open(QIODevice::ReadOnly); |
| QString contents = file.readAll(); |
| file.close(); |
| m_env->reset(); |
| |
| #ifndef QT_NO_SCRIPTTOOLS |
| if (debug) { |
| if (!m_debugger) { |
| m_debugger = new QScriptEngineDebugger(this); |
| m_debugWindow = m_debugger->standardWindow(); |
| m_debugWindow->setWindowModality(Qt::ApplicationModal); |
| m_debugWindow->resize(1280, 704); |
| } |
| m_debugger->attachTo(m_env->engine()); |
| m_debugger->action(QScriptEngineDebugger::InterruptAction)->trigger(); |
| } else { |
| if (m_debugger) |
| m_debugger->detach(); |
| } |
| #else |
| Q_UNUSED(debug); |
| #endif |
| |
| QScriptValue ret = m_env->evaluate(contents, fileName); |
| |
| #ifndef QT_NO_SCRIPTTOOLS |
| if (m_debugWindow) |
| m_debugWindow->hide(); |
| #endif |
| |
| if (ret.isError()) |
| reportScriptError(ret); |
| } |
| //! [4] |