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/*
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version
2 of the License, or (at your option) any later version.
*/
#include <QSortFilterProxyModel>
#include <QComboBox>
#include <QPushButton>
#include <QLineEdit>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QInputDialog>
#include <QStringListModel>
#include <QMessageBox>
#include <QSettings>
#include <QHideEvent>
#include <QAction>
#include <QMenu>
#include <algorithm>
#include "mappingtreewidget.h"
#include "mappingtreemodel.h"
#include "smglobals.h"
MappingTreeWidget::MappingTreeWidget(QWidget *parent) : QWidget(parent){
//setup model
mModel = static_cast<MappingTreeModel*>(SmGlobals::instance()->model("MappingTree"));
mProxy = new QSortFilterProxyModel(this);
mProxy->setSourceModel(mModel);
mTypesModel = new QStringListModel(this);
mTypesModel->setStringList(mModel->mappingTypeNames());
//setup gui
mTree = new MappingTreeView;
mTree->setModel(mProxy);
mTree->setColumnHidden(1, true);
mTree->setColumnHidden(2, true);
mTree->setAlternatingRowColors(true);
mTree->expandAll();
connect(mModel, SIGNAL(needExpansion()), mTree, SLOT(expandAll()));
connect(mTree->selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)), this, SLOT(selectionChanged()));
mTypeBox = new QComboBox;
mTypeBox->setModel(mTypesModel);
connect(mTypeBox, SIGNAL(currentIndexChanged(QString)), this, SLOT(typeChanged(QString)));
mAddType = new QPushButton(tr("Add &type"));
connect(mAddType, SIGNAL(clicked()), this, SLOT(addType()));
mDeleteType = new QPushButton(tr("Delete type"));
connect(mDeleteType, SIGNAL(clicked()), this, SLOT(deleteType()));
mEdit = new QLineEdit;
mAddChild = new QPushButton(tr("&Add"));
connect(mAddChild, SIGNAL(clicked()), this, SLOT(addChild()));
mDeleteChild = new QPushButton(tr("Delete"));
connect(mDeleteChild, SIGNAL(clicked()), this, SLOT(deleteChild()));
QHBoxLayout *typesButtonLayout = new QHBoxLayout;
typesButtonLayout->addWidget(mDeleteType);
typesButtonLayout->addWidget(mAddType);
QHBoxLayout *buttonLayout = new QHBoxLayout;
buttonLayout->addStretch();
buttonLayout->addWidget(mDeleteChild);
buttonLayout->addWidget(mAddChild);
//select type and populate model
QSettings s;
QString lastType = s.value("ui/mappingtreetype").toString();
if(lastType.isEmpty()){
if(!mTypesModel->stringList().isEmpty()){
lastType = mTypesModel->stringList().at(0);
}
}
int typeId = mModel->mappingTypeIdFromName(lastType);
if(typeId != -1){
mModel->setType(typeId);
mTypeBox->setCurrentIndex(mTypeBox->findText(lastType));
typeChanged(lastType);
}
//setup actions
mDeleteChildA = new QAction(tr("Delete"), this);
connect(mDeleteChildA, SIGNAL(triggered()), this, SLOT(deleteChild()));
mTree->addAction(mDeleteChildA);
mEditChildA = new QAction(tr("Edit..."), this);
connect(mEditChildA, SIGNAL(triggered()), this, SLOT(editChild()));
mTree->addAction(mEditChildA);
//widget layout and tab order
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addWidget(mTypeBox);
mainLayout->addLayout(typesButtonLayout);
mainLayout->addWidget(mTree);
mainLayout->addWidget(mEdit);
mainLayout->addLayout(buttonLayout);
setLayout(mainLayout);
mEdit->setFocus();
setTabOrder(mEdit, mAddChild);
}
MappingData MappingTreeWidget::selectedItem() const {
MappingData retval;
QModelIndex sel = selected();
if(!sel.isValid()){
retval.id = -1;
}else{
QModelIndex real = mProxy->mapToSource(sel);
if(mModel->childCount(real)){
retval.id = -1;
}else{
retval.id = sel.data(MappingTreeModel::IdRole).toInt();
}
retval.name = sel.data(MappingTreeModel::NameRole).toString();
QStringList p;
QModelIndex parent = sel;
while(parent.isValid()){
p << parent.data().toString();
parent = parent.parent();
}
std::reverse(p.begin(), p.end());
retval.path = p;
}
return retval;
}
void MappingTreeWidget::addChild(){
QModelIndex sel = selected();
if(!sel.isValid()){
QMessageBox::critical(this, tr("Error"), tr("No parent item selected!"));
return;
}
QString value = mEdit->text().toLower().trimmed();
if(value.isEmpty()){
return;
}
QModelIndex real = mProxy->mapToSource(sel);
mModel->addChild(value, real);
}
void MappingTreeWidget::addType(){
QString typeName = QInputDialog::getText(this, tr("Enter type name"), tr("Name")).toLower().trimmed();
if(typeName.isEmpty()){
return;
}
if(mModel->addMappingType(typeName)){
mTypesModel->setStringList(mModel->mappingTypeNames());
int idxOf = mTypeBox->findText(typeName);
if(idxOf != -1){
mTypeBox->setCurrentIndex(idxOf);
}
}
}
void MappingTreeWidget::deleteChild(){
QModelIndex sel = selected();
if(!sel.isValid()){
QMessageBox::critical(this, tr("Error"), tr("No item selected!"));
return;
}
QModelIndex real = mProxy->mapToSource(sel);
if(mModel->rowCount(real) > 0){
QString msg = QString(tr("Cannot delete item %1, because it has %2 children!")).arg(real.data().toString()).arg(QString::number(mModel->rowCount(real)));
QMessageBox::critical(this, tr("Error"), msg);
return;
}
mModel->deleteChild(real);
}
void MappingTreeWidget::deleteType(){
QString curText = mTypeBox->currentText();
if(curText.isEmpty()){
return;
}
QString msg = QString(tr("Really delete %1?")).arg(curText);
int retval = QMessageBox::question(this, tr("Question"), msg, QMessageBox::Yes | QMessageBox::No, QMessageBox::No);
if(retval == QMessageBox::Yes){
int typeId = mModel->mappingTypeIdFromName(curText);
if(typeId != -1){
if(mModel->deleteMappingType(typeId)){
mTypesModel->setStringList(mModel->mappingTypeNames());
if(mTypesModel->stringList().count() > 0){
mTypeBox->setCurrentIndex(0);
}
}
}
}
}
void MappingTreeWidget::hideEvent(QHideEvent *event){
QString type = mTypeBox->currentText();
if(!type.isEmpty()){
QSettings s;
s.setValue("ui/mappingtreetype", type);
}
event->accept();
}
void MappingTreeWidget::typeChanged(QString type){
int typeId = mModel->mappingTypeIdFromName(type);
if(typeId != -1){
mModel->setType(typeId);
mModel->populate();
mTree->expandAll();
}
}
void MappingTreeWidget::editChild(){
QModelIndex sel = selected();
if(sel.isValid()){
mTree->edit(sel);
}
}
void MappingTreeWidget::selectionChanged(){
QModelIndex sel = selected();
QModelIndex real = mProxy->mapToSource(sel);
emit mappingChanged(real.data(MappingTreeModel::IdRole).toInt());
}
const QModelIndex MappingTreeWidget::selected() const{
QModelIndexList sel = mTree->selectionModel()->selectedRows();
if(sel.isEmpty()){
return QModelIndex();
}
return sel.first();
}
MappingTreeView::MappingTreeView(QWidget *parent) : QTreeView(parent) {}
void MappingTreeView::contextMenuEvent(QContextMenuEvent *e){
QMenu ctxMenu(this);
ctxMenu.addActions(actions());
ctxMenu.exec(e->globalPos());
}
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