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// Copyright (C) 2008 Lukas Lalinsky
//
// 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.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#include <QDebug>
#include "columnlistmodel.h"
#include "diagramdocument.h"
#include "databasecommands.h"
#include "databasetable.h"
#include "commands.h"
#include "column.h"
#include "columnlist.h"
#define COLUMN_COUNT 5
ColumnListModel::ColumnListModel(QObject *parent)
: QAbstractTableModel(parent), m_columnList(0)
{
}
void
ColumnListModel::setColumnList(ColumnList *columnList)
{
if (m_columnList) {
disconnect(m_columnList, 0, this, 0);
}
m_columnList = columnList;
if (m_columnList) {
connect(m_columnList, SIGNAL(columnAboutToBeInserted(int)), this, SLOT(_columnAboutToBeInserted(int)));
connect(m_columnList, SIGNAL(columnInserted(int)), this, SLOT(_columnInserted()));
connect(m_columnList, SIGNAL(columnAboutToBeRemoved(int)), this, SLOT(_columnAboutToBeRemoved(int)));
connect(m_columnList, SIGNAL(columnRemoved(int)), this, SLOT(_columnRemoved()));
connect(m_columnList, SIGNAL(columnChanged(int)), this, SLOT(_columnChanged(int)));
}
beginResetModel();
endResetModel();
}
int
ColumnListModel::rowCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return m_columnList ? m_columnList->columnCount() + 1 : 0;
}
int
ColumnListModel::columnCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return COLUMN_COUNT;
}
QVariant
ColumnListModel::data(const QModelIndex &index, int role) const
{
if (m_columnList) {
Q_ASSERT(index.isValid());
int row = index.row() - firstRow();
if (row < 0 || row >= m_columnList->columnCount()) {
return QVariant();
}
Column *column = m_columnList->column(row);
if (role == Qt::DisplayRole || role == Qt::EditRole) {
if (index.column() == 0) {
return column->name();
}
if (index.column() == 1) {
return column->dataType();
}
if (index.column() == 4) {
return column->notes();
}
}
if (role == Qt::CheckStateRole) {
if (index.column() == 2) {
return column->isRequired() ? Qt::Checked : Qt::Unchecked;
}
if (index.column() == 3) {
return column->isPrimaryKey() ? Qt::Checked : Qt::Unchecked;
}
}
}
return QVariant();
}
bool
ColumnListModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
if (m_columnList) {
Q_ASSERT(index.isValid());
Column *column;
int row = index.row() - firstRow();
if (row == m_columnList->columnCount()) {
column = new Column();
m_columnList->table()->document()->undoStack()->push(
new AddColumnCommand(m_columnList, column));
}
else {
column = m_columnList->column(row);
}
if (role == Qt::DisplayRole || role == Qt::EditRole) {
QString text = value.toString();
if (index.column() == 0) {
m_columnList->table()->document()->undoStack()->push(
new SetObjectPropertyCommand(column, "name", text));
goto OK;
}
if (index.column() == 1) {
m_columnList->table()->document()->undoStack()->push(
new SetObjectPropertyCommand(column, "dataType", text));
goto OK;
}
if (index.column() == 4) {
m_columnList->table()->document()->undoStack()->push(
new SetObjectPropertyCommand(column, "notes", text));
goto OK;
}
}
if (role == Qt::CheckStateRole) {
bool checked = value.toInt() == Qt::Checked ? true : false;
if (index.column() == 2) {
m_columnList->table()->document()->undoStack()->push(
new SetObjectPropertyCommand(column, "required", checked));
goto OK;
}
if (index.column() == 3) {
QUndoCommand *command;
if (!column->isRequired()) {
command = new QUndoCommand();
(void *)new SetObjectPropertyCommand(column, "primaryKey", checked, command);
(void *)new SetObjectPropertyCommand(column, "required", true, command);
}
else {
command = new SetObjectPropertyCommand(column, "primaryKey", checked);
}
m_columnList->table()->document()->undoStack()->push(command);
goto OK;
}
}
}
return false;
OK:
return true;
}
Qt::ItemFlags
ColumnListModel::flags(const QModelIndex &index) const
{
Q_ASSERT(index.isValid());
if (index.column() == 0 || index.column() == 1 || index.column() == 4) {
return Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsEditable;
}
if (index.column() == 2 || index.column() == 3) {
return Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable;
}
return Qt::ItemIsSelectable | Qt::ItemIsEnabled;
}
QVariant
ColumnListModel::headerData(int section, Qt::Orientation orientation, int role) const
{
if (role == Qt::DisplayRole && orientation == Qt::Horizontal) {
if (section == 0)
return tr("Name");
if (section == 1)
return tr("Data Type");
if (section == 2)
return tr("Req'd");
if (section == 3)
return tr("PK");
if (section == 4)
return tr("Notes");
}
return QVariant();
}
QModelIndex
ColumnListModel::indexFromRow(int i) const
{
return createIndex(firstRow() + i, 0);
}
void
ColumnListModel::_columnAboutToBeInserted(int index)
{
beginInsertRows(QModelIndex(), firstRow() + index, firstRow() + index);
}
void
ColumnListModel::_columnInserted()
{
endInsertRows();
}
void
ColumnListModel::_columnAboutToBeRemoved(int index)
{
beginRemoveRows(QModelIndex(), firstRow() + index, firstRow() + index);
}
void
ColumnListModel::_columnRemoved()
{
endRemoveRows();
}
void
ColumnListModel::_columnChanged(int index)
{
emit dataChanged(createIndex(firstRow() + index, 0), createIndex(firstRow() + index, COLUMN_COUNT));
}
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