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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
****************************************************************************/
#include "formwindow_widgetstack.h"
#include <QtDesigner/abstractformwindowtool.h>
#include <QtWidgets/qwidget.h>
#include <QtGui/qevent.h>
#include <QtWidgets/qaction.h>
#include <QtWidgets/qstackedlayout.h>
#include <QtWidgets/qboxlayout.h>
#include <QtCore/qdebug.h>
QT_BEGIN_NAMESPACE
using namespace qdesigner_internal;
FormWindowWidgetStack::FormWindowWidgetStack(QObject *parent) :
QObject(parent),
m_formContainer(new QWidget),
m_formContainerLayout(new QStackedLayout),
m_layout(new QStackedLayout)
{
m_layout->setContentsMargins(QMargins());
m_layout->setSpacing(0);
m_layout->setStackingMode(QStackedLayout::StackAll);
// We choose a QStackedLayout as immediate layout for
// the form windows as it ignores the sizePolicy of
// its child (for example, Fixed would cause undesired side effects).
m_formContainerLayout->setContentsMargins(QMargins());
m_formContainer->setObjectName(QStringLiteral("formContainer"));
m_formContainer->setLayout(m_formContainerLayout);
m_formContainerLayout->setStackingMode(QStackedLayout::StackAll);
// System settings might have different background colors, autofill them
// (affects for example mainwindow status bars)
m_formContainer->setAutoFillBackground(true);
}
FormWindowWidgetStack::~FormWindowWidgetStack() = default;
int FormWindowWidgetStack::count() const
{
return m_tools.count();
}
QDesignerFormWindowToolInterface *FormWindowWidgetStack::currentTool() const
{
return tool(currentIndex());
}
void FormWindowWidgetStack::setCurrentTool(int index)
{
const int cnt = count();
if (index < 0 || index >= cnt) {
qDebug("FormWindowWidgetStack::setCurrentTool(): invalid index: %d", index);
return;
}
const int cur = currentIndex();
if (index == cur)
return;
if (cur != -1)
m_tools.at(cur)->deactivated();
m_layout->setCurrentIndex(index);
// Show the widget editor and the current tool
for (int i = 0; i < cnt; i++)
m_tools.at(i)->editor()->setVisible(i == 0 || i == index);
QDesignerFormWindowToolInterface *tool = m_tools.at(index);
tool->activated();
emit currentToolChanged(index);
}
void FormWindowWidgetStack::setSenderAsCurrentTool()
{
QDesignerFormWindowToolInterface *tool = nullptr;
QAction *action = qobject_cast<QAction*>(sender());
if (action == nullptr) {
qDebug("FormWindowWidgetStack::setSenderAsCurrentTool(): sender is not a QAction");
return;
}
for (QDesignerFormWindowToolInterface *t : qAsConst(m_tools)) {
if (action == t->action()) {
tool = t;
break;
}
}
if (tool == nullptr) {
qDebug("FormWindowWidgetStack::setSenderAsCurrentTool(): unknown tool");
return;
}
setCurrentTool(tool);
}
int FormWindowWidgetStack::indexOf(QDesignerFormWindowToolInterface *tool) const
{
return m_tools.indexOf(tool);
}
void FormWindowWidgetStack::setCurrentTool(QDesignerFormWindowToolInterface *tool)
{
int index = indexOf(tool);
if (index == -1) {
qDebug("FormWindowWidgetStack::setCurrentTool(): unknown tool");
return;
}
setCurrentTool(index);
}
void FormWindowWidgetStack::setMainContainer(QWidget *w)
{
// This code is triggered once by the formwindow and
// by integrations doing "revert to saved". Anything changing?
const int previousCount = m_formContainerLayout->count();
QWidget *previousMainContainer = previousCount
? m_formContainerLayout->itemAt(0)->widget() : nullptr;
if (previousMainContainer == w)
return;
// Swap
if (previousCount)
delete m_formContainerLayout->takeAt(0);
if (w)
m_formContainerLayout->addWidget(w);
}
void FormWindowWidgetStack::addTool(QDesignerFormWindowToolInterface *tool)
{
if (QWidget *w = tool->editor()) {
w->setVisible(m_layout->count() == 0); // Initially only form editor is visible
m_layout->addWidget(w);
} else {
// The form editor might not have a tool initially, use dummy. Assert on anything else
Q_ASSERT(m_tools.isEmpty());
m_layout->addWidget(m_formContainer);
}
m_tools.append(tool);
connect(tool->action(), &QAction::triggered,
this, &FormWindowWidgetStack::setSenderAsCurrentTool);
}
QDesignerFormWindowToolInterface *FormWindowWidgetStack::tool(int index) const
{
if (index < 0 || index >= count())
return nullptr;
return m_tools.at(index);
}
int FormWindowWidgetStack::currentIndex() const
{
return m_layout->currentIndex();
}
QWidget *FormWindowWidgetStack::defaultEditor() const
{
if (m_tools.isEmpty())
return nullptr;
return m_tools.at(0)->editor();
}
QLayout *FormWindowWidgetStack::layout() const
{
return m_layout;
}
QT_END_NAMESPACE
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