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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
#include "qsimpleresource_p.h"
#include "widgetfactory_p.h"
#include "widgetdatabase_p.h"
#include <qdesigner_utils_p.h>
#include <QtDesigner/private/properties_p.h>
#include <QtDesigner/private/ui4_p.h>
#include <QtDesigner/abstractformeditor.h>
#include <QtDesigner/abstractlanguage.h>
#include <QtDesigner/qextensionmanager.h>
#include <QtDesigner/extrainfo.h>
#include <QtUiPlugin/customwidget.h>
#include <QtWidgets/qwidget.h>
#include <QtGui/qaction.h>
#include <QtGui/qicon.h>
#include <QtCore/qdebug.h>
#include <QtCore/qcoreapplication.h>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
namespace qdesigner_internal {
bool QSimpleResource::m_warningsEnabled = true;
QSimpleResource::QSimpleResource(QDesignerFormEditorInterface *core) :
QAbstractFormBuilder(),
m_core(core)
{
setWorkingDirectory(QDir(dataDirectory()));
}
QSimpleResource::~QSimpleResource() = default;
QBrush QSimpleResource::setupBrush(DomBrush *brush)
{
return QAbstractFormBuilder::setupBrush(brush);
}
DomBrush *QSimpleResource::saveBrush(const QBrush &brush)
{
return QAbstractFormBuilder::saveBrush(brush);
}
void QSimpleResource::addExtensionDataToDOM(QAbstractFormBuilder * /* afb */,
QDesignerFormEditorInterface *core,
DomWidget *ui_widget, QWidget *widget)
{
QExtensionManager *emgr = core->extensionManager();
if (QDesignerExtraInfoExtension *extra = qt_extension<QDesignerExtraInfoExtension*>(emgr, widget)) {
extra->saveWidgetExtraInfo(ui_widget);
}
}
void QSimpleResource::applyExtensionDataFromDOM(QAbstractFormBuilder * /* afb */,
QDesignerFormEditorInterface *core,
DomWidget *ui_widget, QWidget *widget)
{
QExtensionManager *emgr = core->extensionManager();
if (QDesignerExtraInfoExtension *extra = qt_extension<QDesignerExtraInfoExtension*>(emgr, widget)) {
extra->loadWidgetExtraInfo(ui_widget);
}
}
QString QSimpleResource::customWidgetScript(QDesignerFormEditorInterface *core, QObject *object)
{
return customWidgetScript(core, qdesigner_internal::WidgetFactory::classNameOf(core, object));
}
bool QSimpleResource::hasCustomWidgetScript(QDesignerFormEditorInterface *, QObject *)
{
return false;
}
QString QSimpleResource::customWidgetScript(QDesignerFormEditorInterface *, const QString &)
{
return QString();
}
// Custom widgets handling helpers
// Add unique fake slots and signals to lists
bool QSimpleResource::addFakeMethods(const DomSlots *domSlots, QStringList &fakeSlots, QStringList &fakeSignals)
{
if (!domSlots)
return false;
bool rc = false;
const QStringList &elementSlots = domSlots->elementSlot();
for (const QString &fakeSlot : elementSlots)
if (fakeSlots.indexOf(fakeSlot) == -1) {
fakeSlots += fakeSlot;
rc = true;
}
const QStringList &elementSignals = domSlots->elementSignal();
for (const QString &fakeSignal : elementSignals)
if (fakeSignals.indexOf(fakeSignal) == -1) {
fakeSignals += fakeSignal;
rc = true;
}
return rc;
}
void QSimpleResource::addFakeMethodsToWidgetDataBase(const DomCustomWidget *domCustomWidget, WidgetDataBaseItem *item)
{
const DomSlots *domSlots = domCustomWidget->elementSlots();
if (!domSlots)
return;
// Merge in new slots, signals
QStringList fakeSlots = item->fakeSlots();
QStringList fakeSignals = item->fakeSignals();
if (addFakeMethods(domSlots, fakeSlots, fakeSignals)) {
item->setFakeSlots(fakeSlots);
item->setFakeSignals(fakeSignals);
}
}
// Perform one iteration of adding the custom widgets to the database,
// looking up the base class and inheriting its data.
// Remove the succeeded custom widgets from the list.
// Classes whose base class could not be found are left in the list.
void QSimpleResource::addCustomWidgetsToWidgetDatabase(const QDesignerFormEditorInterface *core,
QList<DomCustomWidget *> &custom_widget_list)
{
QDesignerWidgetDataBaseInterface *db = core->widgetDataBase();
for (qsizetype i = 0; i < custom_widget_list.size(); ) {
bool classInserted = false;
DomCustomWidget *custom_widget = custom_widget_list.at(i);
const QString customClassName = custom_widget->elementClass();
const QString base_class = custom_widget->elementExtends();
QString includeFile;
IncludeType includeType = IncludeLocal;
if (const DomHeader *header = custom_widget->elementHeader()) {
includeFile = header->text();
if (header->hasAttributeLocation() && header->attributeLocation() == "global"_L1)
includeType = IncludeGlobal;
}
const bool domIsContainer = custom_widget->elementContainer();
// Append a new item
if (base_class.isEmpty()) {
WidgetDataBaseItem *item = new WidgetDataBaseItem(customClassName);
item->setPromoted(false);
item->setGroup(QCoreApplication::translate("Designer", "Custom Widgets"));
item->setIncludeFile(buildIncludeFile(includeFile, includeType));
item->setContainer(domIsContainer);
item->setCustom(true);
addFakeMethodsToWidgetDataBase(custom_widget, item);
db->append(item);
custom_widget_list.removeAt(i);
classInserted = true;
} else {
// Create a new entry cloned from base class. Note that this will ignore existing
// classes, eg, plugin custom widgets.
QDesignerWidgetDataBaseItemInterface *item =
appendDerived(db, customClassName, QCoreApplication::translate("Designer", "Promoted Widgets"),
base_class,
buildIncludeFile(includeFile, includeType),
true,true);
// Ok, base class found.
if (item) {
// Hack to accommodate for old UI-files in which "container" is not set properly:
// Apply "container" from DOM only if true (else, eg classes from QFrame might not accept
// dropping child widgets on them as container=false). This also allows for
// QWidget-derived stacked pages.
if (domIsContainer)
item->setContainer(domIsContainer);
addFakeMethodsToWidgetDataBase(custom_widget, static_cast<WidgetDataBaseItem*>(item));
custom_widget_list.removeAt(i);
classInserted = true;
}
}
// Skip failed item.
if (!classInserted)
i++;
}
}
void QSimpleResource::handleDomCustomWidgets(const QDesignerFormEditorInterface *core,
const DomCustomWidgets *dom_custom_widgets)
{
if (dom_custom_widgets == nullptr)
return;
auto custom_widget_list = dom_custom_widgets->elementCustomWidget();
// Attempt to insert each item derived from its base class.
// This should at most require two iterations in the event that the classes are out of order
// (derived first, max depth: promoted custom plugin = 2)
for (int iteration = 0; iteration < 2; iteration++) {
addCustomWidgetsToWidgetDatabase(core, custom_widget_list);
if (custom_widget_list.isEmpty())
return;
}
// Oops, there are classes left whose base class could not be found.
// Default them to QWidget with warnings.
const QString fallBackBaseClass = u"QWidget"_s;
for (DomCustomWidget *custom_widget : std::as_const(custom_widget_list)) {
const QString customClassName = custom_widget->elementClass();
const QString base_class = custom_widget->elementExtends();
qDebug() << "** WARNING The base class " << base_class << " of the custom widget class " << customClassName
<< " could not be found. Defaulting to " << fallBackBaseClass << '.';
custom_widget->setElementExtends(fallBackBaseClass);
}
// One more pass.
addCustomWidgetsToWidgetDatabase(core, custom_widget_list);
}
// ------------ FormBuilderClipboard
FormBuilderClipboard::FormBuilderClipboard(QWidget *w)
{
m_widgets += w;
}
bool FormBuilderClipboard::empty() const
{
return m_widgets.isEmpty() && m_actions.isEmpty();
}
}
QT_END_NAMESPACE
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