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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
// designer
#include "qdesigner.h"
#include "qdesigner_actions.h"
#include "qdesigner_server.h"
#include "qdesigner_settings.h"
#include "qdesigner_workbench.h"
#include "mainwindow.h"
#include <qdesigner_propertysheet_p.h>
#include <QtGui/qevent.h>
#include <QtWidgets/qmessagebox.h>
#include <QtGui/qicon.h>
#include <QtWidgets/qerrormessage.h>
#include <QtCore/qmetaobject.h>
#include <QtCore/qdir.h>
#include <QtCore/qfile.h>
#include <QtCore/qlibraryinfo.h>
#include <QtCore/qlocale.h>
#include <QtCore/qtextstream.h>
#include <QtCore/qtimer.h>
#include <QtCore/qtranslator.h>
#include <QtCore/qfileinfo.h>
#include <QtCore/qdebug.h>
#include <QtCore/qcommandlineparser.h>
#include <QtCore/qcommandlineoption.h>
#include <QtDesigner/QDesignerComponents>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
static constexpr auto designerApplicationName = "Designer"_L1;
static constexpr auto designerDisplayName = "Qt Widgets Designer"_L1;
static constexpr auto designerWarningPrefix = "Designer: "_L1;
static QtMessageHandler previousMessageHandler = nullptr;
static void designerMessageHandler(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
// Only Designer warnings are displayed as box
QDesigner *designerApp = qDesigner;
if (type != QtWarningMsg || !designerApp || !msg.startsWith(designerWarningPrefix)) {
previousMessageHandler(type, context, msg);
return;
}
designerApp->showErrorMessage(msg);
}
QDesigner::QDesigner(int &argc, char **argv)
: QApplication(argc, argv)
{
setOrganizationName(u"QtProject"_s);
QGuiApplication::setApplicationDisplayName(designerDisplayName);
setApplicationName(designerApplicationName);
QDesignerComponents::initializeResources();
#if !defined(Q_OS_MACOS) && !defined(Q_OS_WIN)
setWindowIcon(QIcon(u":/qt-project.org/designer/images/designer.png"_s));
#endif
}
QDesigner::~QDesigner()
{
delete m_workbench;
delete m_server;
delete m_client;
}
void QDesigner::showErrorMessage(const QString &message)
{
// strip the prefix
const QString qMessage =
message.right(message.size() - int(designerWarningPrefix.size()));
// If there is no main window yet, just store the message.
// The QErrorMessage would otherwise be hidden by the main window.
if (m_mainWindow) {
showErrorMessageBox(qMessage);
} else {
const QMessageLogContext emptyContext;
previousMessageHandler(QtWarningMsg, emptyContext, message); // just in case we crash
m_initializationErrors += qMessage;
m_initializationErrors += u'\n';
}
}
void QDesigner::showErrorMessageBox(const QString &msg)
{
// Manually suppress consecutive messages.
// This happens if for example sth is wrong with custom widget creation.
// The same warning will be displayed by Widget box D&D and form Drop
// while trying to create instance.
if (m_errorMessageDialog && m_lastErrorMessage == msg)
return;
if (!m_errorMessageDialog) {
m_lastErrorMessage.clear();
m_errorMessageDialog = new QErrorMessage(m_mainWindow);
const QString title = QCoreApplication::translate("QDesigner", "%1 - warning").arg(designerApplicationName);
m_errorMessageDialog->setWindowTitle(title);
m_errorMessageDialog->setMinimumSize(QSize(600, 250));
}
m_errorMessageDialog->showMessage(msg);
m_lastErrorMessage = msg;
}
QDesignerWorkbench *QDesigner::workbench() const
{
return m_workbench;
}
QDesignerServer *QDesigner::server() const
{
return m_server;
}
static void showHelp(QCommandLineParser &parser, const QString &errorMessage = QString())
{
QString text;
QTextStream str(&text);
str << "<html><head/><body>";
if (!errorMessage.isEmpty())
str << "<p>" << errorMessage << "</p>";
str << "<pre>" << parser.helpText().toHtmlEscaped() << "</pre></body></html>";
QMessageBox box(errorMessage.isEmpty() ? QMessageBox::Information : QMessageBox::Warning,
QGuiApplication::applicationDisplayName(), text,
QMessageBox::Ok);
box.setTextInteractionFlags(Qt::TextBrowserInteraction);
box.exec();
}
struct Options
{
QStringList files;
QString resourceDir{QLibraryInfo::path(QLibraryInfo::TranslationsPath)};
QStringList pluginPaths;
bool server{false};
quint16 clientPort{0};
bool enableInternalDynamicProperties{false};
};
static inline QDesigner::ParseArgumentsResult
parseDesignerCommandLineArguments(QCommandLineParser &parser, Options *options,
QString *errorMessage)
{
parser.setApplicationDescription(u"Qt Widgets Designer " QT_VERSION_STR "\n\nUI designer for QWidget-based applications."_s);
const QCommandLineOption helpOption = parser.addHelpOption();
parser.setSingleDashWordOptionMode(QCommandLineParser::ParseAsLongOptions);
const QCommandLineOption serverOption(u"server"_s,
u"Server mode"_s);
parser.addOption(serverOption);
const QCommandLineOption clientOption(u"client"_s,
u"Client mode"_s,
u"port"_s);
parser.addOption(clientOption);
const QCommandLineOption resourceDirOption(u"resourcedir"_s,
u"Resource directory"_s,
u"directory"_s);
parser.addOption(resourceDirOption);
const QCommandLineOption internalDynamicPropertyOption(u"enableinternaldynamicproperties"_s,
u"Enable internal dynamic properties"_s);
parser.addOption(internalDynamicPropertyOption);
const QCommandLineOption pluginPathsOption(u"plugin-path"_s,
u"Default plugin path list"_s,
u"path"_s);
parser.addOption(pluginPathsOption);
parser.addPositionalArgument(u"files"_s,
u"The UI files to open."_s);
if (!parser.parse(QCoreApplication::arguments())) {
*errorMessage = parser.errorText();
return QDesigner::ParseArgumentsError;
}
if (parser.isSet(helpOption))
return QDesigner::ParseArgumentsHelpRequested;
// There is no way to retrieve the complete help text from QCommandLineParser,
// so, call process() to display it.
if (parser.isSet(u"help-all"_s))
parser.process(QCoreApplication::arguments()); // exits
options->server = parser.isSet(serverOption);
if (parser.isSet(clientOption)) {
bool ok;
options->clientPort = parser.value(clientOption).toUShort(&ok);
if (!ok) {
*errorMessage = u"Non-numeric argument specified for -client"_s;
return QDesigner::ParseArgumentsError;
}
}
if (parser.isSet(resourceDirOption))
options->resourceDir = parser.value(resourceDirOption);
const auto pluginPathValues = parser.values(pluginPathsOption);
for (const auto &pluginPath : pluginPathValues)
options->pluginPaths.append(pluginPath.split(QDir::listSeparator(), Qt::SkipEmptyParts));
options->enableInternalDynamicProperties = parser.isSet(internalDynamicPropertyOption);
options->files = parser.positionalArguments();
return QDesigner::ParseArgumentsSuccess;
}
QDesigner::ParseArgumentsResult QDesigner::parseCommandLineArguments()
{
QString errorMessage;
Options options;
QCommandLineParser parser;
const ParseArgumentsResult result = parseDesignerCommandLineArguments(parser, &options, &errorMessage);
if (result != ParseArgumentsSuccess) {
showHelp(parser, errorMessage);
return result;
}
// initialize the sub components
if (options.clientPort)
m_client = new QDesignerClient(options.clientPort, this);
if (options.server) {
m_server = new QDesignerServer();
printf("%d\n", m_server->serverPort());
fflush(stdout);
}
if (options.enableInternalDynamicProperties)
QDesignerPropertySheet::setInternalDynamicPropertiesEnabled(true);
std::unique_ptr<QTranslator> designerTranslator(new QTranslator(this));
if (designerTranslator->load(QLocale(), u"designer"_s, u"_"_s, options.resourceDir)) {
installTranslator(designerTranslator.release());
std::unique_ptr<QTranslator> qtTranslator(new QTranslator(this));
if (qtTranslator->load(QLocale(), u"qt"_s, u"_"_s, options.resourceDir))
installTranslator(qtTranslator.release());
}
m_workbench = new QDesignerWorkbench(options.pluginPaths);
emit initialized();
previousMessageHandler = qInstallMessageHandler(designerMessageHandler); // Warn when loading faulty forms
Q_ASSERT(previousMessageHandler);
bool suppressNewFormShow = m_workbench->readInBackup();
for (auto fileName : std::as_const(options.files)) {
// Ensure absolute paths for recent file list to be unique
const QFileInfo fi(fileName);
if (fi.exists() && fi.isRelative())
fileName = fi.absoluteFilePath();
m_workbench->readInForm(fileName);
}
if (m_workbench->formWindowCount() > 0)
suppressNewFormShow = true;
// Show up error box with parent now if something went wrong
if (m_initializationErrors.isEmpty()) {
if (!suppressNewFormShow)
m_workbench->showNewForm();
} else {
showErrorMessageBox(m_initializationErrors);
m_initializationErrors.clear();
}
return result;
}
bool QDesigner::event(QEvent *ev)
{
bool eaten;
switch (ev->type()) {
case QEvent::FileOpen:
m_workbench->readInForm(static_cast<QFileOpenEvent *>(ev)->file());
eaten = true;
break;
case QEvent::Close: {
QCloseEvent *closeEvent = static_cast<QCloseEvent *>(ev);
closeEvent->setAccepted(m_workbench->handleClose());
if (closeEvent->isAccepted()) {
// We're going down, make sure that we don't get our settings saved twice.
if (m_mainWindow)
m_mainWindow->setCloseEventPolicy(MainWindowBase::AcceptCloseEvents);
eaten = QApplication::event(ev);
}
eaten = true;
break;
}
default:
eaten = QApplication::event(ev);
break;
}
return eaten;
}
void QDesigner::setMainWindow(MainWindowBase *tw)
{
m_mainWindow = tw;
}
MainWindowBase *QDesigner::mainWindow() const
{
return m_mainWindow;
}
QT_END_NAMESPACE
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