/// <summary>
/// get tables
/// </summary>
/// <returns></returns>
public static List<Table> GetTables()
{
List<Table> tables = new List<Table>();
string sql = string.Empty;
switch (Version)
{
case "9":
sql = sqlGetTables;
break;
case "1":
sql = sqlGetTables;
break;
default:
sql = sqlGetTables2K;
break;
}
using (SqlDataReader reader = SqlHelper.ExecuteReader(ConnString, CommandType.Text, sql))
{
while (reader.Read())
{
Table table = new Table();
table.TableId = Convert.ToInt32(reader["TableId"].ToString());
table.TableName = reader["TableName"].ToString();
table.Description = reader["TableDesc"].ToString();
table.Columns = GetColumns(table.TableName);
tables.Add(table);
}
}
return tables;
}
public static void DrawPhoto(string database, Table table, string dir, int counter)
{
string fontFamily = "SimSun";
float fontSize = 1.5F;
int vFontSize = 9;
int imageWidth = 0;
int imageHeight = 0;
int rowHeight = 20;
int borderWidth = 4;
int nameWidth = 0;
int typeWidth = 0;
int descWidth = 0;
Font titleFont = new Font(fontFamily, fontSize, FontStyle.Bold);
Font vTitleFont = new Font(fontFamily, vFontSize, FontStyle.Bold);
string number = string.Format("[{0}]", counter.ToString());
int numberWidth = TextRenderer.MeasureText(number, vTitleFont).Width;
int RecordeCount = 0;
//
RecordeCount = (int)SqlHelper.ExecuteScalar(Dbinfo.ConnString, System.Data.CommandType.Text, "select count(*) from " + table.TableName);
//
string title = string.Format("{0} ({1}) [记录行数:{2}] ", table.TableName, table.Description, RecordeCount);
string fullTitle = number + title;
int titleWidth = TextRenderer.MeasureText(fullTitle, vTitleFont).Width;
// 计算图高
imageHeight = rowHeight + rowHeight * table.Columns.Count + borderWidth * 2;
// 计算列宽、图宽
foreach (Column column in table.Columns)
{
Font font = new Font(fontFamily, vFontSize);
int tmpNameWidth = TextRenderer.MeasureText(column.ColumnName, font).Width + borderWidth;
int tmpTypeWidth = TextRenderer.MeasureText(column.Type, font).Width + borderWidth;
int tmpDescWidth = TextRenderer.MeasureText(column.Description, font).Width + borderWidth;
if (tmpNameWidth > nameWidth)
nameWidth = tmpNameWidth;
if (tmpTypeWidth > typeWidth)
typeWidth = tmpTypeWidth;
if (tmpDescWidth > descWidth)
descWidth = tmpDescWidth;
}
imageWidth = nameWidth + typeWidth + descWidth + borderWidth * 2;
// 标题宽度较大
if (titleWidth > imageWidth)
imageWidth = titleWidth;
Bitmap bitmap = new Bitmap(imageWidth, imageHeight);
bitmap.SetResolution(600, 600);
Graphics graphics = Graphics.FromImage(bitmap);
// 填充背景
graphics.FillRectangle(new SolidBrush(Color.White), 0, 0, imageWidth, imageHeight);
// 画竖线
graphics.DrawLine(new Pen(Color.LightGray, 1), new Point(nameWidth, rowHeight + borderWidth), new Point(nameWidth, imageHeight));
graphics.DrawLine(new Pen(Color.LightGray, 1), new Point(nameWidth + typeWidth, rowHeight + borderWidth), new Point(nameWidth + typeWidth, imageHeight));
// 画横线
for (int i = 0; i < table.Columns.Count; i++)
graphics.DrawLine(new Pen(Color.LightGray, 1), new Point(0, rowHeight + borderWidth + rowHeight * i), new Point(imageWidth, rowHeight + borderWidth + rowHeight * i));
// 画外边框
graphics.DrawLine(new Pen(Color.Gray, borderWidth), new Point(0, 0), new Point(imageWidth, 0));
graphics.DrawLine(new Pen(Color.Gray, borderWidth), new Point(0, imageHeight), new Point(imageWidth, imageHeight));
graphics.DrawLine(new Pen(Color.Gray, borderWidth), new Point(0, 0), new Point(0, imageHeight));
graphics.DrawLine(new Pen(Color.Gray, borderWidth), new Point(imageWidth, 0), new Point(imageWidth, imageHeight));
// 画表名
graphics.DrawString(number, titleFont, new SolidBrush(Color.Green), borderWidth, borderWidth);
graphics.DrawString(title, titleFont, new SolidBrush(Color.Black), borderWidth + numberWidth, borderWidth);
// 画字段
for (int i = 0; i < table.Columns.Count; i++)
{
SolidBrush brush = new SolidBrush(Color.Black);
Font font = new Font(fontFamily, fontSize);
// 存在索引就将文字变成蓝色
if (table.Columns[i].IndexName != "")
brush = new SolidBrush(Color.Blue);
// 是标识就将文字加下划线
if (table.Columns[i].IsIdentity)
font = new Font(fontFamily, fontSize, FontStyle.Underline);
// 是主键就将文字颜色改为红色
if (table.Columns[i].IsPrimaryKey)
brush = new SolidBrush(Color.Red);
graphics.DrawString(table.Columns[i].ColumnName, font, brush, borderWidth, rowHeight + borderWidth * 2 + rowHeight * i);
graphics.DrawString(table.Columns[i].Type, font, brush, nameWidth + borderWidth, rowHeight + borderWidth * 2 + rowHeight * i);
graphics.DrawString(table.Columns[i].Description, font, brush, nameWidth + typeWidth + borderWidth, rowHeight + borderWidth * 2 + rowHeight * i);
}
string path = string.Format("{0}", dir);
string fullPath = string.Format("{0}\\{1}.png", path, table.TableName);
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
bitmap.Save(fullPath);
}
