qt5base-lts/tests/manual/diaglib/qwidgetdump.cpp

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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwidgetdump.h"
#include <QWidget>
#if QT_VERSION > 0x050000
# include <QtGui/QScreen>
# include <QtGui/QWindow>
#endif
#include <QApplication>
#include <QtCore/QMetaObject>
#include <QtCore/QDebug>
#include <QtCore/QTextStream>
namespace QtDiag {
static const char *qtWidgetClasses[] = {
"QAbstractItemView", "QAbstractScrollArea", "QAbstractSlider", "QAbstractSpinBox",
"QCalendarWidget", "QCheckBox", "QColorDialog", "QColumnView", "QComboBox",
"QCommandLinkButton", "QDateEdit", "QDateTimeEdit", "QDesktopWidget", "QDial",
"QDialog", "QDialogButtonBox", "QDockWidget", "QDoubleSpinBox", "QErrorMessage",
"QFileDialog", "QFontComboBox", "QFontDialog", "QFrame", "QGraphicsView",
"QGroupBox", "QHeaderView", "QInputDialog", "QLCDNumber", "QLabel", "QLineEdit",
"QListView", "QListWidget", "QMainWindow", "QMdiArea", "QMdiSubWindow", "QMenu",
"QMenuBar", "QMessageBox", "QOpenGLWidget", "QPlainTextEdit", "QProgressBar",
"QProgressDialog", "QPushButton", "QRadioButton", "QRubberBand", "QScrollArea",
"QScrollBar", "QSlider", "QSpinBox", "QSplashScreen", "QSplitter",
"QStackedWidget", "QStatusBar", "QTabBar", "QTabWidget", "QTableView",
"QTableWidget", "QTextBrowser", "QTextEdit", "QTimeEdit", "QToolBar",
"QToolBox", "QToolButton", "QTreeView", "QTreeWidget", "QWidget",
"QWizard", "QWizardPage"
};
static bool isQtWidget(const char *className)
{
for (auto qtWidgetClass : qtWidgetClasses) {
if (qstrcmp(className, qtWidgetClass) == 0)
return true;
}
return false;
}
static void formatWidgetClass(QTextStream &str, const QWidget *w)
{
const QMetaObject *mo = w->metaObject();
str << mo->className();
while (!isQtWidget(mo->className())) {
mo = mo->superClass();
str << ':' << mo->className();
}
const QString on = w->objectName();
if (!on.isEmpty())
str << "/\"" << on << '"';
}
static void dumpWidgetRecursion(QTextStream &str, const QWidget *w,
FormatWindowOptions options, int depth = 0)
{
indentStream(str, 2 * depth);
formatWidgetClass(str, w);
str << ' ' << (w->isVisible() ? "[visible] " : "[hidden] ");
if (const WId nativeWinId = w->internalWinId())
str << "[native: " << Qt::hex << Qt::showbase << nativeWinId << Qt::dec << Qt::noshowbase
<< "] ";
if (w->isWindow())
str << "[top] ";
str << (w->testAttribute(Qt::WA_Mapped) ? "[mapped] " : "[not mapped] ");
if (w->testAttribute(Qt::WA_DontCreateNativeAncestors))
str << "[NoNativeAncestors] ";
if (const int states = w->windowState())
str << "windowState=" << Qt::hex << Qt::showbase << states << Qt::dec << Qt::noshowbase
<< ' ';
formatRect(str, w->geometry());
if (w->isWindow()) {
str << ' ' << w->logicalDpiX() << "DPI";
#if QT_VERSION > 0x050600
const qreal dpr = w->devicePixelRatioF();
if (!qFuzzyCompare(dpr, qreal(1)))
str << " dpr=" << dpr;
#endif // Qt 5.6
const QRect normalGeometry = w->normalGeometry();
if (normalGeometry.isValid() && !normalGeometry.isEmpty() && normalGeometry != w->geometry()) {
str << " normal=";
formatRect(str, w->normalGeometry());
}
}
if (!(options & DontPrintWindowFlags)) {
str << ' ';
formatWindowFlags(str, w->windowFlags());
}
if (options & PrintSizeConstraints) {
str << ' ';
const QSize minimumSize = w->minimumSize();
if (minimumSize.width() > 0 || minimumSize.height() > 0)
str << "minimumSize=" << minimumSize.width() << 'x' << minimumSize.height() << ' ';
const QSize sizeHint = w->sizeHint();
const QSize minimumSizeHint = w->minimumSizeHint();
if (minimumSizeHint.isValid() && !(sizeHint.isValid() && minimumSizeHint == sizeHint))
str << "minimumSizeHint=" << minimumSizeHint.width() << 'x' << minimumSizeHint.height() << ' ';
if (sizeHint.isValid())
str << "sizeHint=" << sizeHint.width() << 'x' << sizeHint.height() << ' ';
const QSize maximumSize = w->maximumSize();
if (maximumSize.width() < QWIDGETSIZE_MAX || maximumSize.height() < QWIDGETSIZE_MAX)
str << "maximumSize=" << maximumSize.width() << 'x' << maximumSize.height() << ' ';
}
str << '\n';
#if QT_VERSION > 0x050000
if (const QWindow *win = w->windowHandle()) {
indentStream(str, 2 * (1 + depth));
formatWindow(str, win, options);
str << '\n';
}
#endif // Qt 5
foreach (const QObject *co, w->children()) {
if (co->isWidgetType())
dumpWidgetRecursion(str, static_cast<const QWidget *>(co), options, depth + 1);
}
}
void dumpAllWidgets(FormatWindowOptions options, const QWidget *root)
{
QString d;
QTextStream str(&d);
str << "### QWidgets:\n";
QWidgetList topLevels;
if (root)
topLevels.append(const_cast<QWidget *>(root));
else
topLevels = QApplication::topLevelWidgets();
foreach (QWidget *tw, topLevels)
dumpWidgetRecursion(str, tw, options);
#if QT_VERSION >= 0x050400
{
foreach (const QString &line, d.split(QLatin1Char('\n')))
qDebug().noquote() << line;
}
#else
qDebug("%s", qPrintable(d));
#endif
}
} // namespace QtDiag