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// Copyright © 2008, 2010, Oracle and/or its affiliates. All rights reserved.
//
// MySQL Connector/NET is licensed under the terms of the GPLv2
// <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
// MySQL Connectors. There are special exceptions to the terms and
// conditions of the GPLv2 as it is applied to this software, see the
// FLOSS License Exception
// <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
//
// 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; version 2 of the License.
//
// 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 St, Fifth Floor, Boston, MA 02110-1301 USA
using System;
using System.Windows.Forms;
using System.Drawing.Design;
using MySql.Data.VisualStudio.DbObjects;
using System.Collections.Generic;
using System.ComponentModel;
namespace MySql.Data.VisualStudio.Editors
{
internal partial class IndexColumnEditorDialog : Form
{
private Table table;
private List<IndexColumn> indexColumns;
private List<IndexColumnGridRow> gridRows = new List<IndexColumnGridRow>();
private List<string> columnNames = new List<string>();
public IndexColumnEditorDialog(List<IndexColumn> ic)
{
table = ic[0].OwningIndex.Table;
indexColumns = ic;
InitializeComponent();
foreach (Column c in table.Columns)
{
if (!String.IsNullOrEmpty(c.ColumnName))
columnNames.Add(c.ColumnName);
}
for (int i=0; i < indexColumns.Count; i++)
{
IndexColumnGridRow row = new IndexColumnGridRow();
row.ColumnName = indexColumns[i].ColumnName;
row.SortOrder = indexColumns[i].SortOrder.ToString();
gridRows.Add(row);
}
columnName.Items.Add("<None>");
columnName.Items.AddRange((object[])columnNames.ToArray());
sortOrder.Items.Add("Ascending");
sortOrder.Items.Add("Descending");
indexColumnBindingSource.DataSource = gridRows;
}
private void indexGrid_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
Type t = e.Control.GetType();
if (t != typeof(DataGridViewComboBoxEditingControl)) return;
DataGridViewComboBoxEditingControl ec = e.Control as DataGridViewComboBoxEditingControl;
ec.DrawMode = DrawMode.OwnerDrawFixed;
ec.DrawItem += new DrawItemEventHandler(dropdown_DrawItem);
if (indexGrid.CurrentCell.ColumnIndex == 0)
{
// now we need to set the item list to all non used columns and the option of
// NONE
ec.Items.Clear();
ec.Items.Add("<None>");
foreach (string s in columnNames)
{
bool alreadyUsed = false;
if (s != (string)indexGrid.CurrentRow.Cells[0].Value)
foreach (IndexColumnGridRow row in gridRows)
if (row.ColumnName == s)
{
alreadyUsed = true;
break;
}
if (!alreadyUsed)
ec.Items.Add(s);
}
int index = ec.FindStringExact(indexGrid.CurrentRow.Cells[0].Value as string);
if (index > 0)
ec.SelectedIndex = index;
}
}
void dropdown_DrawItem(object sender, DrawItemEventArgs e)
{
MyComboBox.DrawComboBox(sender as ComboBox, e);
}
private void okButton_Click(object sender, EventArgs e)
{
indexColumns.Clear();
foreach (IndexColumnGridRow row in gridRows)
{
if (String.IsNullOrEmpty(row.ColumnName)) continue;
IndexColumn ic = new IndexColumn();
ic.ColumnName = row.ColumnName;
ic.SortOrder = (IndexSortOrder)Enum.Parse(typeof(IndexSortOrder), row.SortOrder);
indexColumns.Add(ic);
}
}
private void indexGrid_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
if (e.ColumnIndex != 0) return;
System.Diagnostics.Trace.WriteLine("Validate starting");
DataGridViewComboBoxCell colCell =
(DataGridViewComboBoxCell)indexGrid.Rows[e.RowIndex].Cells[0];
DataGridViewComboBoxCell sortCell =
(DataGridViewComboBoxCell)indexGrid.Rows[e.RowIndex].Cells[1];
IndexColumnGridRow gr = indexColumnBindingSource.Current as IndexColumnGridRow;
string value = e.FormattedValue as string;
if (value == "<None>")
{
colCell.Value = null;
sortCell.Value = null;
gr.ColumnName = null;
gr.SortOrder = null;
}
else
{
colCell.Value = e.FormattedValue;
if (!String.IsNullOrEmpty(colCell.Value as string) &&
String.IsNullOrEmpty(sortCell.Value as string))
gr.SortOrder = "Ascending";
sortCell.Value = gr.SortOrder;
}
}
}
public class IndexColumnEditor : UITypeEditor
{
public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
{
return UITypeEditorEditStyle.Modal;
}
public override object EditValue(ITypeDescriptorContext context,
IServiceProvider provider, object value)
{
List<IndexColumn> ic = value as List<IndexColumn>;
Index index = ic[0].OwningIndex;
Table t = index.Table;
IndexColumnEditorDialog dlg = new IndexColumnEditorDialog(ic);
DialogResult result = dlg.ShowDialog();
if (index.Type != IndexType.Primary) return value;
foreach (Column c in t.Columns)
c.PrimaryKey = false;
foreach (IndexColumn i in ic)
{
i.OwningIndex = index;
foreach (Column c in t.Columns)
if (c.ColumnName == i.ColumnName)
c.PrimaryKey = true;
}
t.NotifyUpdate();
return value;
}
}
public class IndexColumnGridRow
{
private string _columnName;
public string ColumnName
{
get { return _columnName; }
set { _columnName = value; }
}
private string _sortOrder;
public string SortOrder
{
get { return _sortOrder; }
set { _sortOrder = value; }
}
}
}
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