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// Created on: 2017-06-16
// Created by: Natalia ERMOLAEVA
// Copyright (c) 2017 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <inspector/DFBrowser_TreeLevelView.hxx>
#include <inspector/DFBrowser_Item.hxx>
#include <inspector/DFBrowser_TreeLevelViewModel.hxx>
#include <inspector/DFBrowser_Window.hxx>
#include <inspector/DFBrowserPane_Tools.hxx>
#include <inspector/TreeModel_ModelBase.hxx>
#include <inspector/ViewControl_Tools.hxx>
#include <Standard_WarningsDisable.hxx>
#include <QItemSelectionModel>
#include <QGridLayout>
#include <QHeaderView>
#include <QTableView>
#include <QWidget>
#include <Standard_WarningsRestore.hxx>
const int LABEL_OR_ATTRIBUTECOLUMN_WIDTH = 160;
// =======================================================================
// function : Constructor
// purpose :
// =======================================================================
DFBrowser_TreeLevelView::DFBrowser_TreeLevelView(QWidget* theParent)
: QObject(theParent)
{
myMainWindow = new QWidget(theParent);
QGridLayout* aLayout = new QGridLayout(myMainWindow);
aLayout->setContentsMargins(0, 0, 0, 0);
myTableView = new QTableView(myMainWindow);
myTableView->setModel(new DFBrowser_TreeLevelViewModel(myTableView));
myTableView->setColumnWidth(0, LABEL_OR_ATTRIBUTECOLUMN_WIDTH);
myTableView->setEditTriggers(QAbstractItemView::DoubleClicked);
myTableView->horizontalHeader()->setVisible(false);
QHeaderView* aVHeader = myTableView->verticalHeader();
aVHeader->setVisible(false);
aVHeader->setDefaultSectionSize(aVHeader->minimumSectionSize());
myTableView->horizontalHeader()->setStretchLastSection(true);
aLayout->addWidget(myTableView);
QItemSelectionModel* aSelectionModel = new QItemSelectionModel(myTableView->model());
myTableView->setSelectionMode(QAbstractItemView::SingleSelection);
myTableView->setSelectionModel(aSelectionModel);
myTableView->setSelectionBehavior(QAbstractItemView::SelectRows);
connect(aSelectionModel,
SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
this,
SLOT(onTableSelectionChanged(const QItemSelection&, const QItemSelection&)));
connect(myTableView,
SIGNAL(doubleClicked(const QModelIndex&)),
this,
SLOT(onTableDoubleClicked(const QModelIndex&)));
ViewControl_Tools::SetWhiteBackground(myTableView);
myTableView->setGridStyle(Qt::NoPen);
}
// =======================================================================
// function : clearSelection
// purpose :
// =======================================================================
void DFBrowser_TreeLevelView::ClearSelection()
{
myTableView->selectionModel()->clearSelection();
}
// =======================================================================
// function : ProcessItem
// purpose :
// =======================================================================
bool DFBrowser_TreeLevelView::ProcessItem(const QModelIndex& theIndex)
{
bool aResult = false;
TreeModel_ItemBasePtr anItemBase = TreeModel_ModelBase::GetItemByIndex(theIndex);
if (anItemBase)
{
// use this view for attribute/document/label items
DFBrowser_ItemPtr anItem = itemDynamicCast<DFBrowser_Item>(anItemBase);
if (anItem)
aResult = anItem && !anItem->HasAttribute();
else
aResult = true; // attribute or document item
}
return aResult;
}
// =======================================================================
// function : UpdateByTreeSelectionChanged
// purpose :
// =======================================================================
void DFBrowser_TreeLevelView::UpdateByTreeSelectionChanged(const QItemSelection& theSelected,
const QItemSelection&)
{
QModelIndexList aSelectedIndices = theSelected.indexes();
QModelIndexList aFirstColumnSelectedIndices;
for (QModelIndexList::const_iterator aSelIt = aSelectedIndices.begin();
aSelIt != aSelectedIndices.end();
aSelIt++)
{
QModelIndex anIndex = *aSelIt;
if (anIndex.column() == 0)
aFirstColumnSelectedIndices.append(anIndex);
}
if (aFirstColumnSelectedIndices.size() != 1)
return;
DFBrowser_TreeLevelViewModel* aModel =
dynamic_cast<DFBrowser_TreeLevelViewModel*>(myTableView->model());
const QModelIndex& anIndex = aFirstColumnSelectedIndices.first();
if (DFBrowser_TreeLevelView::ProcessItem(anIndex)) // to Init
aModel->Init(anIndex);
else
aModel->Reset();
}
// =======================================================================
// function : onTableSelectionChanged
// purpose :
// =======================================================================
void DFBrowser_TreeLevelView::onTableSelectionChanged(const QItemSelection& theSelected,
const QItemSelection&)
{
QModelIndexList aSelectedIndices = theSelected.indexes();
QModelIndex aSelectedIndex = TreeModel_ModelBase::SingleSelected(aSelectedIndices, 0);
DFBrowser_TreeLevelViewModel* aTableModel =
dynamic_cast<DFBrowser_TreeLevelViewModel*>(myTableView->model());
if (aTableModel && aTableModel->IsInitialized())
{
const QModelIndex& aTreeViewIndex = aTableModel->GetTreeViewIndex(aSelectedIndex);
if (aTreeViewIndex.isValid())
emit indexSelected(aTreeViewIndex);
}
}
// =======================================================================
// function : onTableDoubleClicked
// purpose :
// =======================================================================
void DFBrowser_TreeLevelView::onTableDoubleClicked(const QModelIndex& theIndex)
{
DFBrowser_TreeLevelViewModel* aTableModel =
dynamic_cast<DFBrowser_TreeLevelViewModel*>(myTableView->model());
if (!aTableModel)
return;
const QModelIndex& aTreeViewIndex = aTableModel->GetTreeViewIndex(theIndex);
if (aTreeViewIndex.isValid())
emit indexDoubleClicked(aTreeViewIndex);
}
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