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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 "qmdiarea_container.h"
#include <QtDesigner/qextensionmanager.h>
#include <QtDesigner/abstractformeditor.h>
#include <QtWidgets/qmdiarea.h>
#include <QtWidgets/qmdisubwindow.h>
#include <QtWidgets/qapplication.h>
#include <QtCore/qdebug.h>
#include <QtCore/qhash.h>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
namespace qdesigner_internal {
QMdiAreaContainer::QMdiAreaContainer(QMdiArea *widget, QObject *parent)
: QObject(parent),
m_mdiArea(widget)
{
}
int QMdiAreaContainer::count() const
{
return m_mdiArea->subWindowList(QMdiArea::CreationOrder).size();
}
QWidget *QMdiAreaContainer::widget(int index) const
{
if (index < 0)
return nullptr;
return m_mdiArea->subWindowList(QMdiArea::CreationOrder).at(index)->widget();
}
int QMdiAreaContainer::currentIndex() const
{
if (QMdiSubWindow *sub = m_mdiArea->activeSubWindow())
return m_mdiArea->subWindowList(QMdiArea::CreationOrder).indexOf(sub);
return -1;
}
void QMdiAreaContainer::setCurrentIndex(int index)
{
if (index < 0) {
qDebug() << "** WARNING Attempt to QMdiAreaContainer::setCurrentIndex(-1)";
return;
}
QMdiSubWindow *frame = m_mdiArea->subWindowList(QMdiArea::CreationOrder).at(index);
m_mdiArea->setActiveSubWindow(frame);
}
void QMdiAreaContainer::addWidget(QWidget *widget)
{
QMdiSubWindow *frame = m_mdiArea->addSubWindow(widget, Qt::Window);
frame->show();
m_mdiArea->cascadeSubWindows();
positionNewMdiChild(m_mdiArea, frame);
}
// Semi-smart positioning of new windows: Make child fill the whole MDI window below
// cascaded other windows
void QMdiAreaContainer::positionNewMdiChild(const QWidget *area, QWidget *mdiChild)
{
enum { MinSize = 20 };
const QPoint pos = mdiChild->pos();
const QSize areaSize = area->size();
switch (QApplication::layoutDirection()) {
case Qt::LayoutDirectionAuto:
case Qt::LeftToRight: {
const QSize fullSize = QSize(areaSize.width() - pos.x(), areaSize.height() - pos.y());
if (fullSize.width() > MinSize && fullSize.height() > MinSize)
mdiChild->resize(fullSize);
}
break;
case Qt::RightToLeft: {
const QSize fullSize = QSize(pos.x() + mdiChild->width(), areaSize.height() - pos.y());
if (fullSize.width() > MinSize && fullSize.height() > MinSize) {
mdiChild->move(0, pos.y());
mdiChild->resize(fullSize);
}
}
break;
}
}
void QMdiAreaContainer::insertWidget(int, QWidget *widget)
{
addWidget(widget);
}
void QMdiAreaContainer::remove(int index)
{
auto subWins = m_mdiArea->subWindowList(QMdiArea::CreationOrder);
if (index >= 0 && index < subWins.size()) {
QMdiSubWindow *f = subWins.at(index);
m_mdiArea->removeSubWindow(f->widget());
delete f;
}
}
// ---------- MdiAreaPropertySheet, creates fake properties:
// 1) window name (object name of child)
// 2) title (windowTitle of child).
static constexpr auto subWindowTitleC = "activeSubWindowTitle"_L1;
static constexpr auto subWindowNameC = "activeSubWindowName"_L1;
QMdiAreaPropertySheet::QMdiAreaPropertySheet(QWidget *mdiArea, QObject *parent) :
QDesignerPropertySheet(mdiArea, parent),
m_windowTitleProperty(u"windowTitle"_s)
{
createFakeProperty(subWindowNameC, QString());
createFakeProperty(subWindowTitleC, QString());
}
QMdiAreaPropertySheet::MdiAreaProperty QMdiAreaPropertySheet::mdiAreaProperty(const QString &name)
{
static const QHash<QString, MdiAreaProperty> mdiAreaPropertyHash = {
{subWindowNameC, MdiAreaSubWindowName},
{subWindowTitleC, MdiAreaSubWindowTitle}
};
return mdiAreaPropertyHash.value(name, MdiAreaNone);
}
void QMdiAreaPropertySheet::setProperty(int index, const QVariant &value)
{
switch (mdiAreaProperty(propertyName(index))) {
case MdiAreaSubWindowName:
if (QWidget *w = currentWindow())
w->setObjectName(value.toString());
break;
case MdiAreaSubWindowTitle: // Forward to window title of subwindow
if (QDesignerPropertySheetExtension *cws = currentWindowSheet()) {
const int index = cws->indexOf(m_windowTitleProperty);
cws->setProperty(index, value);
cws->setChanged(index, true);
}
break;
default:
QDesignerPropertySheet::setProperty(index, value);
break;
}
}
bool QMdiAreaPropertySheet::reset(int index)
{
bool rc = true;
switch (mdiAreaProperty(propertyName(index))) {
case MdiAreaSubWindowName:
setProperty(index, QVariant(QString()));
setChanged(index, false);
break;
case MdiAreaSubWindowTitle: // Forward to window title of subwindow
if (QDesignerPropertySheetExtension *cws = currentWindowSheet()) {
const int index = cws->indexOf(m_windowTitleProperty);
rc = cws->reset(index);
}
break;
default:
rc = QDesignerPropertySheet::reset(index);
break;
}
return rc;
}
QVariant QMdiAreaPropertySheet::property(int index) const
{
switch (mdiAreaProperty(propertyName(index))) {
case MdiAreaSubWindowName:
if (QWidget *w = currentWindow())
return w->objectName();
return QVariant(QString());
case MdiAreaSubWindowTitle:
if (QWidget *w = currentWindow())
return w->windowTitle();
return QVariant(QString());
case MdiAreaNone:
break;
}
return QDesignerPropertySheet::property(index);
}
bool QMdiAreaPropertySheet::isEnabled(int index) const
{
switch (mdiAreaProperty(propertyName(index))) {
case MdiAreaSubWindowName:
case MdiAreaSubWindowTitle:
return currentWindow() != nullptr;
case MdiAreaNone:
break;
}
return QDesignerPropertySheet::isEnabled(index);
}
bool QMdiAreaPropertySheet::isChanged(int index) const
{
bool rc = false;
switch (mdiAreaProperty(propertyName(index))) {
case MdiAreaSubWindowName:
rc = currentWindow() != nullptr;
break;
case MdiAreaSubWindowTitle:
if (QDesignerPropertySheetExtension *cws = currentWindowSheet()) {
const int index = cws->indexOf(m_windowTitleProperty);
rc = cws->isChanged(index);
}
break;
default:
rc = QDesignerPropertySheet::isChanged(index);
break;
}
return rc;
}
QWidget *QMdiAreaPropertySheet::currentWindow() const
{
if (const QDesignerContainerExtension *c = qt_extension<QDesignerContainerExtension*>(core()->extensionManager(), object())) {
const int ci = c->currentIndex();
if (ci < 0)
return nullptr;
return c->widget(ci);
}
return nullptr;
}
QDesignerPropertySheetExtension *QMdiAreaPropertySheet::currentWindowSheet() const
{
QWidget *cw = currentWindow();
if (cw == nullptr)
return nullptr;
return qt_extension<QDesignerPropertySheetExtension*>(core()->extensionManager(), cw);
}
bool QMdiAreaPropertySheet::checkProperty(const QString &propertyName)
{
return mdiAreaProperty(propertyName) == MdiAreaNone;
}
}
QT_END_NAMESPACE
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