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/*
modelpickerdialog.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2014 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Filipe Azevedo <filipe.azevedo@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "modelpickerdialog.h"
#include "deferredtreeview.h"
#include "searchlinecontroller.h"
#include <QVBoxLayout>
#include <QDialogButtonBox>
#include <QPushButton>
#include <QDebug>
#include <QLineEdit>
#include <QCheckBox>
using namespace GammaRay;
static QPair<int, QVariant> qNullSelection()
{
return qMakePair(-1, QVariant());
}
ModelPickerDialog::ModelPickerDialog(QWidget *parent)
: QDialog(parent)
, m_view(new DeferredTreeView(this))
, m_buttons(new QDialogButtonBox(this))
, m_searchBox(new QLineEdit(this))
, m_showInvisibleItems(new QCheckBox(tr("Hide invisible items"), this))
, m_pendingSelection(qNullSelection())
{
setAttribute(Qt::WA_DeleteOnClose);
m_view->setUniformRowHeights(true);
m_view->setExpandNewContent(true);
m_buttons->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
m_showInvisibleItems->setChecked(true);
auto *vl = new QVBoxLayout(this);
auto *hl = new QHBoxLayout;
hl->addWidget(m_searchBox);
hl->addWidget(m_showInvisibleItems);
vl->addLayout(hl);
vl->addWidget(m_view);
vl->addWidget(m_buttons);
selectionChanged();
resize(640, 480);
connect(m_view, &DeferredTreeView::newContentExpanded, this, &ModelPickerDialog::updatePendingSelection);
connect(m_view, &DeferredTreeView::activated, this, &ModelPickerDialog::accept);
connect(m_buttons, &QDialogButtonBox::accepted, this, &ModelPickerDialog::accept);
connect(m_buttons, &QDialogButtonBox::rejected, this, &QDialog::reject);
connect(m_showInvisibleItems, &QAbstractButton::toggled, this, &ModelPickerDialog::checkBoxStateChanged);
}
QAbstractItemModel *ModelPickerDialog::model() const
{
return m_view->model();
}
void ModelPickerDialog::setModel(QAbstractItemModel *model)
{
m_view->setModel(model);
connect(m_view->selectionModel(), &QItemSelectionModel::selectionChanged, this, &ModelPickerDialog::selectionChanged);
new SearchLineController(m_searchBox, model);
for (int i = 0; i < m_view->model()->columnCount(); ++i) {
m_view->setDeferredResizeMode(i, QHeaderView::ResizeToContents);
}
}
void ModelPickerDialog::setRootIndex(const QModelIndex &index)
{
m_view->setRootIndex(index);
}
void ModelPickerDialog::setCurrentIndex(const QModelIndex &index)
{
m_pendingSelection = qNullSelection();
m_view->setCurrentIndex(index);
m_view->scrollTo(index);
}
void ModelPickerDialog::setCurrentIndex(int role, const QVariant &value)
{
QAbstractItemModel *model = m_view->model();
const QModelIndex index = model->match(model->index(0, 0), role, value, 1, Qt::MatchExactly | Qt::MatchRecursive | Qt::MatchWrap).value(0);
if (index.isValid()) {
setCurrentIndex(index);
} else {
m_pendingSelection = qMakePair(role, value);
}
}
void ModelPickerDialog::selectionChanged()
{
const QModelIndex index = m_view->selectionModel() ? m_view->selectionModel()->selectedRows().value(0) : QModelIndex();
m_buttons->button(QDialogButtonBox::Ok)->setEnabled(index.isValid());
}
void ModelPickerDialog::accept()
{
const QModelIndex index = m_view->selectionModel()->selectedRows().value(0);
if (index.isValid()) {
emit activated(index);
QDialog::accept();
}
}
void ModelPickerDialog::updatePendingSelection()
{
if (m_pendingSelection != qNullSelection())
setCurrentIndex(m_pendingSelection.first, m_pendingSelection.second);
}
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