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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Designer 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 "widgetbox_dnditem.h"
#include <widgetfactory_p.h>
#include <spacer_widget_p.h>
#include <qdesigner_formbuilder_p.h>
#include <qtresourcemodel_p.h>
#include <formwindowbase_p.h>
#include <qdesigner_utils_p.h>
#include <qdesigner_dockwidget_p.h>
#include <qsimpleresource_p.h>
#include <QtDesigner/abstractformeditor.h>
#include <QtDesigner/abstractformwindowmanager.h>
#include <QtDesigner/private/ui4_p.h>
#include <QtWidgets/qstyle.h>
#include <QtWidgets/qapplication.h>
QT_BEGIN_NAMESPACE
namespace qdesigner_internal {
/*******************************************************************************
** WidgetBoxResource
*/
static inline DeviceProfile currentDeviceProfile(const QDesignerFormEditorInterface *core)
{
if (QDesignerFormWindowInterface *cfw = core->formWindowManager()->activeFormWindow())
if (const FormWindowBase *fwb = qobject_cast<const FormWindowBase *>(cfw))
return fwb->deviceProfile();
return DeviceProfile();
}
class WidgetBoxResource : public QDesignerFormBuilder
{
public:
WidgetBoxResource(QDesignerFormEditorInterface *core);
// protected->public
QWidget *createUI(DomUI *ui, QWidget *parents) { return QDesignerFormBuilder::create(ui, parents); }
protected:
QWidget *create(DomWidget *ui_widget, QWidget *parents) override;
QWidget *createWidget(const QString &widgetName, QWidget *parentWidget, const QString &name) override;
void createCustomWidgets(DomCustomWidgets *) override;
};
WidgetBoxResource::WidgetBoxResource(QDesignerFormEditorInterface *core) :
QDesignerFormBuilder(core, currentDeviceProfile(core))
{
}
QWidget *WidgetBoxResource::createWidget(const QString &widgetName, QWidget *parentWidget, const QString &name)
{
if (widgetName == QStringLiteral("Spacer")) {
Spacer *spacer = new Spacer(parentWidget);
spacer->setObjectName(name);
return spacer;
}
return QDesignerFormBuilder::createWidget(widgetName, parentWidget, name);
}
QWidget *WidgetBoxResource::create(DomWidget *ui_widget, QWidget *parent)
{
QWidget *result = QDesignerFormBuilder::create(ui_widget, parent);
// It is possible to have a syntax error or something in custom
// widget XML, so, try to recover here by creating an artificial
// top level + widget.
if (!result) {
const QString msg = QApplication::translate("qdesigner_internal::WidgetBox", "Warning: Widget creation failed in the widget box. This could be caused by invalid custom widget XML.");
qdesigner_internal::designerWarning(msg);
result = new QWidget(parent);
new QWidget(result);
}
result->setFocusPolicy(Qt::NoFocus);
result->setObjectName(ui_widget->attributeName());
return result;
}
void WidgetBoxResource::createCustomWidgets(DomCustomWidgets *dc)
{
// Make a promotion entry in case someone has a promoted widget
// in the scratchpad.
QSimpleResource::handleDomCustomWidgets(core(), dc);
}
/*******************************************************************************
** WidgetBoxResource
*/
static QSize geometryProp(const DomWidget *dw)
{
const auto &prop_list = dw->elementProperty();
const QString geometry = QStringLiteral("geometry");
for (DomProperty *prop : prop_list) {
if (prop->attributeName() != geometry)
continue;
DomRect *dr = prop->elementRect();
if (dr == nullptr)
continue;
return QSize(dr->elementWidth(), dr->elementHeight());
}
return QSize();
}
static QSize domWidgetSize(const DomWidget *dw)
{
QSize size = geometryProp(dw);
if (size.isValid())
return size;
const auto &elementWidgets = dw->elementWidget();
for (const DomWidget *child : elementWidgets) {
size = geometryProp(child);
if (size.isValid())
return size;
}
const auto &elementLayouts = dw->elementLayout();
for (const DomLayout *dl : elementLayouts) {
const auto &elementItems = dl->elementItem();
for (DomLayoutItem *item : elementItems) {
const DomWidget *child = item->elementWidget();
if (child == nullptr)
continue;
size = geometryProp(child);
if (size.isValid())
return size;
}
}
return QSize();
}
static QWidget *decorationFromDomWidget(DomUI *dom_ui, QDesignerFormEditorInterface *core)
{
WidgetBoxResource builder(core);
// We have the builder create the articial QWidget fake top level as a tooltip
// because the size algorithm works better at weird DPI settings
// if the actual widget is created as a child of a container
QWidget *fakeTopLevel = builder.createUI(dom_ui, nullptr);
fakeTopLevel->setParent(nullptr, Qt::ToolTip); // Container
// Actual widget
const DomWidget *domW = dom_ui->elementWidget()->elementWidget().constFirst();
QWidget *w = fakeTopLevel->findChildren<QWidget*>().constFirst();
Q_ASSERT(w);
// hack begin;
// We set _q_dockDrag dynamic property which will be detected in drag enter event of form window.
// Dock drop is handled in special way (highlight goes to central widget of main window)
if (qobject_cast<QDesignerDockWidget *>(w))
fakeTopLevel->setProperty("_q_dockDrag", QVariant(true));
// hack end;
w->setAutoFillBackground(true); // Different style for embedded
QSize size = domWidgetSize(domW);
const QSize minimumSize = w->minimumSizeHint();
if (!size.isValid())
size = w->sizeHint();
if (size.width() < minimumSize.width())
size.setWidth(minimumSize.width());
if (size.height() < minimumSize.height())
size.setHeight(minimumSize.height());
// A QWidget might have size -1,-1 if no geometry property is specified in the widget box.
if (size.isEmpty())
size = size.expandedTo(QSize(16, 16));
w->setGeometry(QRect(QPoint(0, 0), size));
fakeTopLevel->resize(size);
return fakeTopLevel;
}
WidgetBoxDnDItem::WidgetBoxDnDItem(QDesignerFormEditorInterface *core,
DomUI *dom_ui,
const QPoint &global_mouse_pos) :
QDesignerDnDItem(CopyDrop)
{
QWidget *decoration = decorationFromDomWidget(dom_ui, core);
decoration->move(global_mouse_pos - QPoint(5, 5));
init(dom_ui, nullptr, decoration, global_mouse_pos);
}
}
QT_END_NAMESPACE
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