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Diffstat (limited to 'tools/designer/src/lib/shared/widgetfactory.cpp')
| -rw-r--r-- | tools/designer/src/lib/shared/widgetfactory.cpp | 897 |
1 files changed, 897 insertions, 0 deletions
diff --git a/tools/designer/src/lib/shared/widgetfactory.cpp b/tools/designer/src/lib/shared/widgetfactory.cpp new file mode 100644 index 0000000..3822fec --- /dev/null +++ b/tools/designer/src/lib/shared/widgetfactory.cpp @@ -0,0 +1,897 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the Qt Designer 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. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/* +TRANSLATOR qdesigner_internal::WidgetFactory +*/ + +#include "widgetfactory_p.h" +#include "widgetdatabase_p.h" +#include "metadatabase_p.h" +#include "qlayout_widget_p.h" +#include "qdesigner_widget_p.h" +#include "qdesigner_tabwidget_p.h" +#include "qdesigner_toolbox_p.h" +#include "qdesigner_stackedbox_p.h" +#include "qdesigner_toolbar_p.h" +#include "qdesigner_menubar_p.h" +#include "qdesigner_menu_p.h" +#include "qdesigner_dockwidget_p.h" +#include "qdesigner_utils_p.h" +#include "formwindowbase_p.h" + +// shared +#include "layoutinfo_p.h" +#include "spacer_widget_p.h" +#include "layout_p.h" +#include "abstractintrospection_p.h" + +// sdk +#include <QtDesigner/QDesignerFormEditorInterface> +#include <QtDesigner/QDesignerContainerExtension> +#include <QtDesigner/QDesignerCustomWidgetInterface> +#include <QtDesigner/QExtensionManager> +#include <QtDesigner/QDesignerPropertySheetExtension> +#include <QtDesigner/QDesignerLanguageExtension> +#include <QtDesigner/QDesignerFormWindowManagerInterface> +#include <QtDesigner/QDesignerFormWindowCursorInterface> + +#include <QtGui/QtGui> +#include <QtGui/QScrollBar> +#include <QtGui/QFontComboBox> +#include <QtGui/QAbstractSpinBox> +#include <QtGui/QLineEdit> +#include <QtGui/QButtonGroup> +#include <QtGui/QStyle> +#include <QtGui/QStyleFactory> +#include <QtGui/QWizard> +#include <QtCore/qdebug.h> +#include <QtCore/QMetaObject> + +QT_BEGIN_NAMESPACE + +#ifdef Q_OS_WIN +static inline bool isAxWidget(const QObject *o) +{ + // Is it one of QDesignerAxWidget/QDesignerAxPluginWidget? + static const char *axWidgetName = "QDesignerAx"; + static const unsigned axWidgetNameLen = qstrlen(axWidgetName); + return qstrncmp(o->metaObject()->className(), axWidgetName, axWidgetNameLen) == 0; +} +#endif + +/* Dynamic boolean property indicating object was created by the factory + * for the form editor. */ + +static const char *formEditorDynamicProperty = "_q_formEditorObject"; + +namespace qdesigner_internal { + +// A friendly SpinBox that grants access to its QLineEdit +class FriendlySpinBox : public QAbstractSpinBox { +public: + friend class WidgetFactory; +}; + +// An event filter for form-combo boxes that prevents the embedded line edit +// from getting edit focus (and drawing blue artifacts/lines). It catches the +// ChildPolished event when the "editable" property flips to true and the +// QLineEdit is created and turns off the LineEdit's focus policy. + +class ComboEventFilter : public QObject { +public: + explicit ComboEventFilter(QComboBox *parent) : QObject(parent) {} + virtual bool eventFilter(QObject *watched, QEvent *event); +}; + +bool ComboEventFilter::eventFilter(QObject *watched, QEvent *event) +{ + if (event->type() == QEvent::ChildPolished) { + QComboBox *cb = static_cast<QComboBox*>(watched); + if (QLineEdit *le = cb->lineEdit()) + le->setFocusPolicy(Qt::NoFocus); + } + return QObject::eventFilter(watched, event); +} + +/* Watch out for QWizards changing their pages and make sure that not some + * selected widget becomes invisible on a hidden page (causing the selection + * handles to shine through). Select the wizard in that case in analogy to + * the QTabWidget event filters, etc. */ + +class WizardPageChangeWatcher : public QObject { + Q_OBJECT +public: + explicit WizardPageChangeWatcher(QWizard *parent); + +public slots: + void pageChanged(); +}; + +WizardPageChangeWatcher::WizardPageChangeWatcher(QWizard *parent) : + QObject(parent) +{ + connect(parent, SIGNAL(currentIdChanged(int)), this, SLOT(pageChanged())); +} + +void WizardPageChangeWatcher::pageChanged() +{ + /* Use a bit more conservative approach than that for the QTabWidget, + * change the selection only if a selected child becomes invisible by + * changing the page. */ + QWizard *wizard = static_cast<QWizard *>(parent()); + QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(wizard); + if (!fw) + return; + QDesignerFormWindowCursorInterface *cursor = fw->cursor(); + const int selCount = cursor->selectedWidgetCount(); + for (int i = 0; i < selCount; i++) { + if (!cursor->selectedWidget(i)->isVisible()) { + fw->clearSelection(false); + fw->selectWidget(wizard, true); + break; + } + } +} + +// ---------------- WidgetFactory::Strings +WidgetFactory::Strings::Strings() : + m_alignment(QLatin1String("alignment")), + m_bottomMargin(QLatin1String("bottomMargin")), + m_geometry(QLatin1String("geometry")), + m_leftMargin(QLatin1String("leftMargin")), + m_line(QLatin1String("Line")), + m_objectName(QLatin1String("objectName")), + m_spacerName(QLatin1String("spacerName")), + m_orientation(QLatin1String("orientation")), + m_q3WidgetStack(QLatin1String("Q3WidgetStack")), + m_qAction(QLatin1String("QAction")), + m_qButtonGroup(QLatin1String("QButtonGroup")), + m_qAxWidget(QLatin1String("QAxWidget")), + m_qDialog(QLatin1String("QDialog")), + m_qDockWidget(QLatin1String("QDockWidget")), + m_qLayoutWidget(QLatin1String("QLayoutWidget")), + m_qMenu(QLatin1String("QMenu")), + m_qMenuBar(QLatin1String("QMenuBar")), + m_qWidget(QLatin1String("QWidget")), + m_rightMargin(QLatin1String("rightMargin")), + m_sizeHint(QLatin1String("sizeHint")), + m_spacer(QLatin1String("Spacer")), + m_text(QLatin1String("text")), + m_title(QLatin1String("title")), + m_topMargin(QLatin1String("topMargin")), + m_windowIcon(QLatin1String("windowIcon")), + m_windowTitle(QLatin1String("windowTitle")) +{ +} +// ---------------- WidgetFactory +QPointer<QWidget> *WidgetFactory::m_lastPassiveInteractor = new QPointer<QWidget>(); +bool WidgetFactory::m_lastWasAPassiveInteractor = false; +const char *WidgetFactory::disableStyleCustomPaintingPropertyC = "_q_custom_style_disabled"; + +WidgetFactory::WidgetFactory(QDesignerFormEditorInterface *core, QObject *parent) + : QDesignerWidgetFactoryInterface(parent), + m_core(core), + m_formWindow(0), + m_currentStyle(0) +{ +} + +WidgetFactory::~WidgetFactory() +{ +} + +QDesignerFormWindowInterface *WidgetFactory::currentFormWindow(QDesignerFormWindowInterface *fw) +{ + QDesignerFormWindowInterface *was = m_formWindow; + m_formWindow = fw; + return was; +} + +void WidgetFactory::loadPlugins() +{ + m_customFactory.clear(); + + QDesignerPluginManager *pluginManager = m_core->pluginManager(); + + QList<QDesignerCustomWidgetInterface*> lst = pluginManager->registeredCustomWidgets(); + foreach (QDesignerCustomWidgetInterface *c, lst) { + m_customFactory.insert(c->name(), c); + } +} + +// Convencience to create non-widget objects. Returns 0 if unknown +QObject* WidgetFactory::createObject(const QString &className, QObject* parent) const +{ + if (className.isEmpty()) { + qWarning("** WARNING %s called with an empty class name", Q_FUNC_INFO); + return 0; + } + if (className == m_strings.m_qAction) + return new QAction(parent); + if (className == m_strings.m_qButtonGroup) + return new QButtonGroup(parent); + return 0; +} + +QWidget* WidgetFactory::createCustomWidget(const QString &className, QWidget *parentWidget, bool *creationError) const +{ + *creationError = false; + CustomWidgetFactoryMap::const_iterator it = m_customFactory.constFind(className); + if (it == m_customFactory.constEnd()) + return 0; + + QDesignerCustomWidgetInterface *factory = it.value(); + QWidget *rc = factory->createWidget(parentWidget); + // shouldn't happen + if (!rc) { + *creationError = true; + designerWarning(tr("The custom widget factory registered for widgets of class %1 returned 0.").arg(className)); + return 0; + } + // Figure out the base class unless it is known + static QSet<QString> knownCustomClasses; + if (!knownCustomClasses.contains(className)) { + QDesignerWidgetDataBaseInterface *wdb = m_core->widgetDataBase(); + const int widgetInfoIndex = wdb->indexOfObject(rc, false); + if (widgetInfoIndex != -1) { + if (wdb->item(widgetInfoIndex)->extends().isEmpty()) { + const QDesignerMetaObjectInterface *mo = core()->introspection()->metaObject(rc)->superClass(); + // If we hit on a 'Q3DesignerXXWidget' that claims to be a 'Q3XXWidget', step + // over. + if (mo && mo->className() == className) + mo = mo->superClass(); + while (mo != 0) { + if (core()->widgetDataBase()->indexOfClassName(mo->className()) != -1) { + wdb->item(widgetInfoIndex)->setExtends(mo->className()); + break; + } + mo = mo->superClass(); + } + } + knownCustomClasses.insert(className); + } + } + // Since a language plugin may lie about its names, like Qt Jambi + // does, return immediately here... + QDesignerLanguageExtension *lang = + qt_extension<QDesignerLanguageExtension *>(m_core->extensionManager(), m_core); + if (lang) + return rc; + +#ifdef Q_OS_WIN + if (isAxWidget(rc)) + return rc; +#endif + // Check for mismatched class names which is hard to track. + // Perform literal comparison first for QAxWidget, for which a meta object hack is in effect. + const char *createdClassNameC = rc->metaObject()->className(); + const QByteArray classNameB = className.toUtf8(); + const char *classNameC = classNameB.constData(); + + if (qstrcmp(createdClassNameC, classNameC) && !rc->inherits(classNameC)) + designerWarning(tr("A class name mismatch occurred when creating a widget using the custom widget factory registered for widgets of class %1." + " It returned a widget of class %2.").arg(className).arg(QString::fromUtf8(createdClassNameC))); + return rc; +} + + +QWidget *WidgetFactory::createWidget(const QString &widgetName, QWidget *parentWidget) const +{ + if (widgetName.isEmpty()) { + qWarning("** WARNING %s called with an empty class name", Q_FUNC_INFO); + return 0; + } + // Preview or for form window? + QDesignerFormWindowInterface *fw = m_formWindow; + if (! fw) + fw = QDesignerFormWindowInterface::findFormWindow(parentWidget); + + QWidget *w = 0; + do { + // 1) custom. If there is an explicit failure(factory wants to indicate something is wrong), + // return 0, do not try to find fallback, which might be worse in the case of Q3 widget. + bool customWidgetCreationError; + w = createCustomWidget(widgetName, parentWidget, &customWidgetCreationError); + if (w) { + break; + } else { + if (customWidgetCreationError) + return 0; + } + + // 2) Special widgets + if (widgetName == m_strings.m_line) { + w = new Line(parentWidget); + } else if (widgetName == m_strings.m_qDockWidget) { + w = new QDesignerDockWidget(parentWidget); + } else if (widgetName == m_strings.m_qMenuBar) { + w = new QDesignerMenuBar(parentWidget); + } else if (widgetName == m_strings.m_qMenu) { + w = new QDesignerMenu(parentWidget); + } else if (widgetName == m_strings.m_spacer) { + w = new Spacer(parentWidget); + } else if (widgetName == m_strings.m_qDockWidget) { + w = new QDesignerDockWidget(parentWidget); + } else if (widgetName == m_strings.m_qLayoutWidget) { + w = fw ? new QLayoutWidget(fw, parentWidget) : new QWidget(parentWidget); + } else if (widgetName == m_strings.m_qDialog) { + if (fw) { + w = new QDesignerDialog(fw, parentWidget); + } else { + w = new QDialog(parentWidget); + } + } else if (widgetName == m_strings.m_qWidget) { + /* We want a 'QDesignerWidget' that draws a grid only for widget + * forms and container extension pages (not for preview and not + * for normal QWidget children on forms (legacy) */ + if (fw && parentWidget) { + if (qt_extension<QDesignerContainerExtension*>(m_core->extensionManager(), parentWidget)) { + w = new QDesignerWidget(fw, parentWidget); + } else { + if (const FormWindowBase *fwb = qobject_cast<FormWindowBase *>(fw)) + if (parentWidget == fwb->formContainer()) + w = new QDesignerWidget(fw, parentWidget); + } + } + if (!w) + w = new QWidget(parentWidget); + } + if (w) + break; + + // 3) table + const QByteArray widgetNameBA = widgetName.toUtf8(); + const char *widgetNameC = widgetNameBA.constData(); + + if (w) { // symmetry for macro + } + +#define DECLARE_LAYOUT(L, C) +#define DECLARE_COMPAT_WIDGET(W, C) /*DECLARE_WIDGET(W, C)*/ +#define DECLARE_WIDGET(W, C) else if (!qstrcmp(widgetNameC, #W)) { Q_ASSERT(w == 0); w = new W(parentWidget); } +#define DECLARE_WIDGET_1(W, C) else if (!qstrcmp(widgetNameC, #W)) { Q_ASSERT(w == 0); w = new W(0, parentWidget); } + +#include "widgets.table" + +#undef DECLARE_COMPAT_WIDGET +#undef DECLARE_LAYOUT +#undef DECLARE_WIDGET +#undef DECLARE_WIDGET_1 + + if (w) + break; + // 4) fallBack + const QString fallBackBaseClass = m_strings.m_qWidget; + QDesignerWidgetDataBaseInterface *db = core()->widgetDataBase(); + QDesignerWidgetDataBaseItemInterface *item = db->item(db->indexOfClassName(widgetName)); + if (item == 0) { + // Emergency: Create, derived from QWidget + QString includeFile = widgetName.toLower(); + includeFile += QLatin1String(".h"); + item = appendDerived(db,widgetName, tr("%1 Widget").arg(widgetName),fallBackBaseClass, + includeFile, true, true); + Q_ASSERT(item); + } + QString baseClass = item->extends(); + if (baseClass.isEmpty()) { + // Currently happens in the case of Q3-Support widgets + baseClass =fallBackBaseClass; + } + w = createWidget(baseClass, parentWidget); + promoteWidget(core(),w,widgetName); + } while (false); + + Q_ASSERT(w != 0); + if (m_currentStyle) + w->setStyle(m_currentStyle); + initializeCommon(w); + if (fw) { // form editor initialization + initialize(w); + } else { // preview-only initialization + initializePreview(w); + } + return w; +} + +QString WidgetFactory::classNameOf(QDesignerFormEditorInterface *c, const QObject* o) +{ + if (o == 0) + return QString(); + + const char *className = o->metaObject()->className(); + if (!o->isWidgetType()) + return QLatin1String(className); + const QWidget *w = static_cast<const QWidget*>(o); + // check promoted before designer special + const QString customClassName = promotedCustomClassName(c, const_cast<QWidget*>(w)); + if (!customClassName.isEmpty()) + return customClassName; + if (qobject_cast<const QDesignerMenuBar*>(w)) + return QLatin1String("QMenuBar"); + else if (qobject_cast<const QDesignerMenu*>(w)) + return QLatin1String("QMenu"); + else if (qobject_cast<const QDesignerDockWidget*>(w)) + return QLatin1String("QDockWidget"); + else if (qobject_cast<const QDesignerDialog*>(w)) + return QLatin1String("QDialog"); + else if (qobject_cast<const QDesignerWidget*>(w)) + return QLatin1String("QWidget"); +#ifdef Q_OS_WIN + else if (isAxWidget(w)) + return QLatin1String("QAxWidget"); +#endif + else if (qstrcmp(className, "QDesignerQ3WidgetStack") == 0) + return QLatin1String("Q3WidgetStack"); + + return QLatin1String(className); +} + +QLayout *WidgetFactory::createUnmanagedLayout(QWidget *parentWidget, int type) +{ + switch (type) { + case LayoutInfo::HBox: + return new QHBoxLayout(parentWidget); + case LayoutInfo::VBox: + return new QVBoxLayout(parentWidget); + case LayoutInfo::Grid: + return new QGridLayout(parentWidget); + case LayoutInfo::Form: + return new QFormLayout(parentWidget); + default: + Q_ASSERT(0); + break; + } + return 0; +} + + +/*! Creates a layout on the widget \a widget of the type \a type + which can be \c HBox, \c VBox or \c Grid. +*/ + +QLayout *WidgetFactory::createLayout(QWidget *widget, QLayout *parentLayout, int type) const // ### (sizepolicy) +{ + QDesignerMetaDataBaseInterface *metaDataBase = core()->metaDataBase(); + + if (parentLayout == 0) { + QWidget *page = containerOfWidget(widget); + if (page) { + widget = page; + } else { + const QString msg = tr("The current page of the container '%1' (%2) could not be determined while creating a layout." +"This indicates an inconsistency in the ui-file, probably a layout being constructed on a container widget.").arg(widget->objectName()).arg(classNameOf(core(), widget)); + designerWarning(msg); + } + } + + Q_ASSERT(metaDataBase->item(widget) != 0); // ensure the widget is managed + + if (parentLayout == 0 && metaDataBase->item(widget->layout()) == 0) { + parentLayout = widget->layout(); + } + + QWidget *parentWidget = parentLayout != 0 ? 0 : widget; + + QLayout *layout = createUnmanagedLayout(parentWidget, type); + metaDataBase->add(layout); // add the layout in the MetaDataBase + + QDesignerPropertySheetExtension *sheet = qt_extension<QDesignerPropertySheetExtension*>(core()->extensionManager(), layout); + + sheet->setChanged(sheet->indexOf(m_strings.m_objectName), true); + if (widget->inherits("Q3GroupBox")) { + layout->setContentsMargins(widget->style()->pixelMetric(QStyle::PM_LayoutLeftMargin), + widget->style()->pixelMetric(QStyle::PM_LayoutTopMargin), + widget->style()->pixelMetric(QStyle::PM_LayoutRightMargin), + widget->style()->pixelMetric(QStyle::PM_LayoutBottomMargin)); + QGridLayout *grid = qobject_cast<QGridLayout *>(layout); + if (grid) { + grid->setHorizontalSpacing(-1); + grid->setVerticalSpacing(-1); + } else { + layout->setSpacing(-1); + } + layout->setAlignment(Qt::AlignTop); + // Just to ensure; before 4.3 orientation property was always set (now only for QSplitter class). + // Calling Q3GroupBox::setOrientation() invoked in turn setSpacing(0). Below fixes that + widget->layout()->setSpacing(-1); + } else if (widget->inherits("QLayoutWidget")) { + sheet->setProperty(sheet->indexOf(m_strings.m_leftMargin), 0); + sheet->setProperty(sheet->indexOf(m_strings.m_topMargin), 0); + sheet->setProperty(sheet->indexOf(m_strings.m_rightMargin), 0); + sheet->setProperty(sheet->indexOf(m_strings.m_bottomMargin), 0); + } + + if (sheet) { + const int index = sheet->indexOf(m_strings.m_alignment); + if (index != -1) + sheet->setChanged(index, true); + } + + if (metaDataBase->item(widget->layout()) == 0) { + Q_ASSERT(layout->parent() == 0); + QBoxLayout *box = qobject_cast<QBoxLayout*>(widget->layout()); + if (!box) { // we support only unmanaged box layouts + const QString msg = tr("Attempt to add a layout to a widget '%1' (%2) which already has an unmanaged layout of type %3.\n" + "This indicates an inconsistency in the ui-file."). + arg(widget->objectName()).arg(classNameOf(core(), widget)).arg(classNameOf(core(), widget->layout())); + designerWarning(msg); + return 0; + } + box->addLayout(layout); + } + + return layout; +} + +/*! Returns the widget into which children should be inserted when \a + w is a container known to designer. + + Usually, it is \a w itself, but there are exceptions (for example, a + tabwidget is known to designer as a container, but the child + widgets should be inserted into the current page of the + tabwidget. In this case, the current page of + the tabwidget would be returned.) + */ +QWidget* WidgetFactory::containerOfWidget(QWidget *w) const +{ + if (QDesignerContainerExtension *container = qt_extension<QDesignerContainerExtension*>(core()->extensionManager(), w)) + return container->widget(container->currentIndex()); + + return w; +} + +/*! Returns the actual designer widget of the container \a w. This is + normally \a w itself, but it might be a parent or grand parent of \a w + (for example, when working with a tabwidget and \a w is the container which + contains and layouts children, but the actual widget known to + designer is the tabwidget which is the parent of \a w. In this case, + the tabwidget would be returned.) +*/ + +QWidget* WidgetFactory::widgetOfContainer(QWidget *w) const +{ + // ### cleanup + if (!w) + return 0; + if (w->parentWidget() && w->parentWidget()->parentWidget() && + w->parentWidget()->parentWidget()->parentWidget() && + qobject_cast<QToolBox*>(w->parentWidget()->parentWidget()->parentWidget())) + return w->parentWidget()->parentWidget()->parentWidget(); + + while (w != 0) { + if (core()->widgetDataBase()->isContainer(w) || + (w && qobject_cast<QDesignerFormWindowInterface*>(w->parentWidget()))) + return w; + + w = w->parentWidget(); + } + + return w; +} + +QDesignerFormEditorInterface *WidgetFactory::core() const +{ + return m_core; +} + +// Necessary initializations for form editor/preview objects +void WidgetFactory::initializeCommon(QWidget *widget) const +{ + // Apply style + if (m_currentStyle) + widget->setStyle(m_currentStyle); + // Prevent the wizard from emulating the Windows Vista Theme. + // This theme (in both Aero and Basic mode) is tricky to + // emulate properly in designer due to 1) the manipulation of the non-client area of + // the top-level window, and 2) the upper-right location of the Back button. + // The wizard falls back to QWizard::ModernStyle whenever the Vista theme + // would normally apply. + if (QWizard *wizard = qobject_cast<QWizard *>(widget)) { + wizard->setProperty("_q_wizard_vista_off", QVariant(true)); + return; + } +} + +// Necessary initializations for preview objects +void WidgetFactory::initializePreview(QWidget *widget) const +{ + + if (QStackedWidget *stackedWidget = qobject_cast<QStackedWidget*>(widget)) { + QStackedWidgetPreviewEventFilter::install(stackedWidget); // Add browse button only. + return; + } +} + +// Necessary initializations for form editor objects +void WidgetFactory::initialize(QObject *object) const +{ + // Indicate that this is a form object (for QDesignerFormWindowInterface::findFormWindow) + object->setProperty(formEditorDynamicProperty, QVariant(true)); + QDesignerPropertySheetExtension *sheet = qt_extension<QDesignerPropertySheetExtension*>(m_core->extensionManager(), object); + if (!sheet) + return; + + sheet->setChanged(sheet->indexOf(m_strings.m_objectName), true); + + if (!object->isWidgetType()) { + if (qobject_cast<QAction*>(object)) + sheet->setChanged(sheet->indexOf(m_strings.m_text), true); + return; + } + + QWidget *widget = static_cast<QWidget*>(object); + const bool isMenu = qobject_cast<QMenu*>(widget); + const bool isMenuBar = !isMenu && qobject_cast<QMenuBar*>(widget); + + widget->setAttribute(Qt::WA_TransparentForMouseEvents, false); + widget->setFocusPolicy((isMenu || isMenuBar) ? Qt::StrongFocus : Qt::NoFocus); + + if (!isMenu) + sheet->setChanged(sheet->indexOf(m_strings.m_geometry), true); + + if (qobject_cast<Spacer*>(widget)) { + sheet->setChanged(sheet->indexOf(m_strings.m_spacerName), true); + return; + } + + const int o = sheet->indexOf(m_strings.m_orientation); + if (o != -1 && widget->inherits("QSplitter")) + sheet->setChanged(o, true); + + if (QToolBar *toolBar = qobject_cast<QToolBar*>(widget)) { + ToolBarEventFilter::install(toolBar); + sheet->setVisible(sheet->indexOf(m_strings.m_windowTitle), true); + toolBar->setFloatable(false); // prevent toolbars from being dragged off + return; + } + + if (qobject_cast<QDockWidget*>(widget)) { + sheet->setVisible(sheet->indexOf(m_strings.m_windowTitle), true); + sheet->setVisible(sheet->indexOf(m_strings.m_windowIcon), true); + return; + } + + if (isMenu) { + sheet->setChanged(sheet->indexOf(m_strings.m_title), true); + return; + } + // helpers + if (QToolBox *toolBox = qobject_cast<QToolBox*>(widget)) { + QToolBoxHelper::install(toolBox); + return; + } + if (QStackedWidget *stackedWidget = qobject_cast<QStackedWidget*>(widget)) { + QStackedWidgetEventFilter::install(stackedWidget); + return; + } + if (QTabWidget *tabWidget = qobject_cast<QTabWidget*>(widget)) { + QTabWidgetEventFilter::install(tabWidget); + return; + } + // Prevent embedded line edits from getting focus + if (QAbstractSpinBox *asb = qobject_cast<QAbstractSpinBox *>(widget)) { + if (QLineEdit *lineEdit = static_cast<FriendlySpinBox*>(asb)->lineEdit()) + lineEdit->setFocusPolicy(Qt::NoFocus); + return; + } + if (QComboBox *cb = qobject_cast<QComboBox *>(widget)) { + if (QFontComboBox *fcb = qobject_cast<QFontComboBox *>(widget)) { + fcb->lineEdit()->setFocusPolicy(Qt::NoFocus); // Always present + return; + } + cb->installEventFilter(new ComboEventFilter(cb)); + return; + } + if (QWizard *wz = qobject_cast<QWizard *>(widget)) { + WizardPageChangeWatcher *pw = new WizardPageChangeWatcher(wz); + Q_UNUSED(pw); + } +} + +static inline QString classNameOfStyle(const QStyle *s) +{ + return QLatin1String(s->metaObject()->className()); +} + +QString WidgetFactory::styleName() const +{ + return classNameOfStyle(style()); +} + +static inline bool isApplicationStyle(const QString &styleName) +{ + return styleName.isEmpty() || styleName == classNameOfStyle(qApp->style()); +} + +void WidgetFactory::setStyleName(const QString &styleName) +{ + m_currentStyle = isApplicationStyle(styleName) ? static_cast<QStyle*>(0) : getStyle(styleName); +} + +QStyle *WidgetFactory::style() const +{ + return m_currentStyle ? m_currentStyle : qApp->style(); +} + +QStyle *WidgetFactory::getStyle(const QString &styleName) +{ + if (isApplicationStyle(styleName)) + return qApp->style(); + + StyleCache::iterator it = m_styleCache.find(styleName); + if (it == m_styleCache.end()) { + QStyle *style = QStyleFactory::create(styleName); + if (!style) { + const QString msg = tr("Cannot create style '%1'.").arg(styleName); + designerWarning(msg); + return 0; + } + it = m_styleCache.insert(styleName, style); + } + return it.value(); +} + +void WidgetFactory::applyStyleTopLevel(const QString &styleName, QWidget *w) +{ + if (QStyle *style = getStyle(styleName)) + applyStyleToTopLevel(style, w); +} + +void WidgetFactory::applyStyleToTopLevel(QStyle *style, QWidget *widget) +{ + const QPalette standardPalette = style->standardPalette(); + if (widget->style() == style && widget->palette() == standardPalette) + return; + + widget->setStyle(style); + widget->setPalette(standardPalette); + const QWidgetList lst = qFindChildren<QWidget*>(widget); + const QWidgetList::const_iterator cend = lst.constEnd(); + for (QWidgetList::const_iterator it = lst.constBegin(); it != cend; ++it) + (*it)->setStyle(style); +} + +// Check for 'interactor' click on a tab bar, +// which can appear within a QTabWidget or as a standalone widget. + +static bool isTabBarInteractor(const QTabBar *tabBar) +{ + // Tabbar embedded in Q(Designer)TabWidget, ie, normal tab widget case + if (qobject_cast<const QTabWidget*>(tabBar->parentWidget())) + return true; + + // Standalone tab bar on the form. Return true for tab rect areas + // only to allow the user to select the tab bar by clicking outside the actual tabs. + const int count = tabBar->count(); + if (count == 0) + return false; + + // click into current tab: No Interaction + const int currentIndex = tabBar->currentIndex(); + const QPoint pos = tabBar->mapFromGlobal(QCursor::pos()); + if (tabBar->tabRect(currentIndex).contains(pos)) + return false; + + // click outside: No Interaction + const QRect geometry = QRect(QPoint(0, 0), tabBar->size()); + if (!geometry.contains(pos)) + return false; + // click into another tab: Let's interact, switch tabs. + for (int i = 0; i < count; i++) + if (tabBar->tabRect(i).contains(pos)) + return true; + return false; +} + +bool WidgetFactory::isPassiveInteractor(QWidget *widget) +{ + static const QString qtPassive = QLatin1String("__qt__passive_"); + if (m_lastPassiveInteractor != 0 && (QWidget*)(*m_lastPassiveInteractor) == widget) + return m_lastWasAPassiveInteractor; + + if (QApplication::activePopupWidget() || widget == 0) // if a popup is open, we have to make sure that this one is closed, else X might do funny things + return true; + + m_lastWasAPassiveInteractor = false; + (*m_lastPassiveInteractor) = widget; + + if (const QTabBar *tabBar = qobject_cast<const QTabBar*>(widget)) { + if (isTabBarInteractor(tabBar)) + m_lastWasAPassiveInteractor = true; + return m_lastWasAPassiveInteractor; + } else if (qobject_cast<QSizeGrip*>(widget)) + return (m_lastWasAPassiveInteractor = true); + else if (qobject_cast<QMdiSubWindow*>(widget)) + return (m_lastWasAPassiveInteractor = true); + else if (qobject_cast<QAbstractButton*>(widget) && (qobject_cast<QTabBar*>(widget->parent()) || qobject_cast<QToolBox*>(widget->parent()))) + return (m_lastWasAPassiveInteractor = true); + else if (qobject_cast<QMenuBar*>(widget)) + return (m_lastWasAPassiveInteractor = true); + else if (qobject_cast<QToolBar*>(widget)) + return (m_lastWasAPassiveInteractor = true); + else if (qobject_cast<QScrollBar*>(widget)) { + // A scroll bar is an interactor on a QAbstractScrollArea only. + if (const QWidget *parent = widget->parentWidget()) { + const QString objectName = parent->objectName(); + static const QString scrollAreaVContainer = QLatin1String("qt_scrollarea_vcontainer"); + void activeFormWindowChanged(QDesignerFormWindowInterface *formWindow); + void formWindowAdded(QDesignerFormWindowInterface *formWindow); + static const QString scrollAreaHContainer = QLatin1String("qt_scrollarea_hcontainer"); + if (objectName == scrollAreaVContainer || objectName == scrollAreaHContainer) { + m_lastWasAPassiveInteractor = true; + return m_lastWasAPassiveInteractor; + } + } + } else if (qstrcmp(widget->metaObject()->className(), "QDockWidgetTitle") == 0) + return (m_lastWasAPassiveInteractor = true); + else if (qstrcmp(widget->metaObject()->className(), "QWorkspaceTitleBar") == 0) + return (m_lastWasAPassiveInteractor = true); + else if (widget->objectName().startsWith(qtPassive)) + return (m_lastWasAPassiveInteractor = true); + return m_lastWasAPassiveInteractor; +} + +void WidgetFactory::formWindowAdded(QDesignerFormWindowInterface *formWindow) +{ + setFormWindowStyle(formWindow); +} + +void WidgetFactory::activeFormWindowChanged(QDesignerFormWindowInterface *formWindow) +{ + setFormWindowStyle(formWindow); +} + +void WidgetFactory::setFormWindowStyle(QDesignerFormWindowInterface *formWindow) +{ + if (FormWindowBase *fwb = qobject_cast<FormWindowBase *>(formWindow)) + setStyleName(fwb->styleName()); +} + +bool WidgetFactory::isFormEditorObject(const QObject *object) +{ + return object->property(formEditorDynamicProperty).isValid(); +} +} // namespace qdesigner_internal + +QT_END_NAMESPACE + +#include "widgetfactory.moc" |