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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:18:55 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:18:55 (GMT)
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/script/qscript
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Long live Qt 4.5!
Diffstat (limited to 'examples/script/qscript')
-rw-r--r--examples/script/qscript/main.cpp221
-rw-r--r--examples/script/qscript/qscript.pro14
2 files changed, 235 insertions, 0 deletions
diff --git a/examples/script/qscript/main.cpp b/examples/script/qscript/main.cpp
new file mode 100644
index 0000000..891c89f
--- /dev/null
+++ b/examples/script/qscript/main.cpp
@@ -0,0 +1,221 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <qscriptengine.h>
+
+#include <QtCore/QFile>
+#include <QtCore/QTextStream>
+#include <QtCore/QStringList>
+#include <QtGui/QApplication>
+
+#include <stdlib.h>
+
+#include "bytearrayclass.h"
+
+static bool wantsToQuit;
+
+static QScriptValue qtscript_quit(QScriptContext *ctx, QScriptEngine *eng)
+{
+ Q_UNUSED(ctx);
+ wantsToQuit = true;
+ return eng->undefinedValue();
+}
+
+static void interactive(QScriptEngine *eng)
+{
+ QScriptValue global = eng->globalObject();
+ QScriptValue quitFunction = eng->newFunction(qtscript_quit);
+ if (!global.property(QLatin1String("exit")).isValid())
+ global.setProperty(QLatin1String("exit"), quitFunction);
+ if (!global.property(QLatin1String("quit")).isValid())
+ global.setProperty(QLatin1String("quit"), quitFunction);
+ wantsToQuit = false;
+
+ QTextStream qin(stdin, QFile::ReadOnly);
+
+ const char *qscript_prompt = "qs> ";
+ const char *dot_prompt = ".... ";
+ const char *prompt = qscript_prompt;
+
+ QString code;
+
+ forever {
+ QString line;
+
+ printf("%s", prompt);
+ fflush(stdout);
+
+ line = qin.readLine();
+ if (line.isNull())
+ break;
+
+ code += line;
+ code += QLatin1Char('\n');
+
+ if (line.trimmed().isEmpty()) {
+ continue;
+
+ } else if (! eng->canEvaluate(code)) {
+ prompt = dot_prompt;
+
+ } else {
+ QScriptValue result = eng->evaluate(code, QLatin1String("typein"));
+
+ code.clear();
+ prompt = qscript_prompt;
+
+ if (! result.isUndefined())
+ fprintf(stderr, "%s\n", qPrintable(result.toString()));
+
+ if (wantsToQuit)
+ break;
+ }
+ }
+}
+
+static QScriptValue importExtension(QScriptContext *context, QScriptEngine *engine)
+{
+ return engine->importExtension(context->argument(0).toString());
+}
+
+static QScriptValue loadScripts(QScriptContext *context, QScriptEngine *engine)
+{
+ for (int i = 0; i < context->argumentCount(); ++i) {
+ QString fileName = context->argument(0).toString();
+ QFile file(fileName);
+ if (!file.open(QIODevice::ReadOnly))
+ return context->throwError(QString::fromLatin1("could not open %0 for reading").arg(fileName));
+ QTextStream ts(&file);
+ QString contents = ts.readAll();
+ file.close();
+ QScriptContext *pc = context->parentContext();
+ context->setActivationObject(pc->activationObject());
+ context->setThisObject(pc->thisObject());
+ QScriptValue ret = engine->evaluate(contents);
+ if (engine->hasUncaughtException())
+ return ret;
+ }
+ return engine->undefinedValue();
+}
+
+int main(int argc, char *argv[])
+{
+ QApplication *app;
+ if (argc >= 2 && !qstrcmp(argv[1], "-tty")) {
+ ++argv;
+ --argc;
+ app = new QApplication(argc, argv, QApplication::Tty);
+ } else {
+ app = new QApplication(argc, argv);
+ }
+
+ QScriptEngine *eng = new QScriptEngine();
+
+ QScriptValue globalObject = eng->globalObject();
+
+ globalObject.setProperty("load", eng->newFunction(loadScripts, /*length=*/1));
+
+ {
+ if (!globalObject.property("qt").isObject())
+ globalObject.setProperty("qt", eng->newObject());
+ QScriptValue qscript = eng->newObject();
+ qscript.setProperty("importExtension", eng->newFunction(importExtension));
+ globalObject.property("qt").setProperty("script", qscript);
+ }
+
+ ByteArrayClass *byteArrayClass = new ByteArrayClass(eng);
+ globalObject.setProperty("ByteArray", byteArrayClass->constructor());
+
+ if (! *++argv) {
+ interactive(eng);
+ return EXIT_SUCCESS;
+ }
+
+ while (const char *arg = *argv++) {
+ QString fn = QString::fromLocal8Bit(arg);
+
+ if (fn == QLatin1String("-i")) {
+ interactive(eng);
+ break;
+ }
+
+ QString contents;
+ int lineNumber = 1;
+
+ if (fn == QLatin1String("-")) {
+ QTextStream stream(stdin, QFile::ReadOnly);
+ contents = stream.readAll();
+ }
+
+ else {
+ QFile file(fn);
+
+ if (file.open(QFile::ReadOnly)) {
+ QTextStream stream(&file);
+ contents = stream.readAll();
+ file.close();
+
+ // strip off #!/usr/bin/env qscript line
+ if (contents.startsWith("#!")) {
+ contents.remove(0, contents.indexOf("\n"));
+ ++lineNumber;
+ }
+ }
+ }
+
+ if (contents.isEmpty())
+ continue;
+
+ QScriptValue r = eng->evaluate(contents, fn, lineNumber);
+ if (eng->hasUncaughtException()) {
+ QStringList backtrace = eng->uncaughtExceptionBacktrace();
+ fprintf (stderr, " %s\n%s\n\n", qPrintable(r.toString()),
+ qPrintable(backtrace.join("\n")));
+ return EXIT_FAILURE;
+ }
+ }
+
+ delete eng;
+ delete app;
+
+ return EXIT_SUCCESS;
+}
diff --git a/examples/script/qscript/qscript.pro b/examples/script/qscript/qscript.pro
new file mode 100644
index 0000000..759eedf
--- /dev/null
+++ b/examples/script/qscript/qscript.pro
@@ -0,0 +1,14 @@
+
+QT += script
+win32: CONFIG += console
+mac:CONFIG -= app_bundle
+
+SOURCES += main.cpp
+
+include(../customclass/bytearrayclass.pri)
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/script/qscript
+sources.files = $$RESOURCES $$FORMS main.cpp qscript.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/script/qscript
+INSTALLS += target sources