C#中使用GDI+实现复杂打印
近日做报表，需要实现一个比较特殊的打印：针对不同患者的药费记录，打印不同的清单，并且支持一次打印多个患者的记录。其效果看起来应该像下面这个样子：
如上所述，使用弱智的水晶报表，就会遇到如何构造数据源的问题，由于不同患者的药费记录和遗嘱记录都不同，而且整体上需要一个患者一个清单，所以其数据源只能为一个数组，而不是简单的DataTable。小弟一向对大且笨拙的CrystalReport不感冒，再加上对GDI+比较痴迷，索性费点功夫，使用GDI+来打印上述报表。
首先需要构造数据源，创建一个ArrayList对象a，然后再把每个患者需要打印的东东保存为一个ArrayList放入ATotal中。
if( a != null )
{
a.Clear();
}
for( int m = 0; m < 3; m ++ )
{
ArrayList a1 = new ArrayList();
string x0 = "住院患者一日清单";
string x1 = "入院日期：2007-11-11 结算日期：2007-11-11至2007-11-15";
string x2 = "姓名：欧阳峰 住院号：20090909090 床：512 妇科";
string x3 = "项目编号*项目名称*单价*数量*单位"; // 注意其中的*标志
string[] x4 = new string[ 90 ]; // 假设有90条数据，不固定
for( int i = 0; i < 90; i ++ )
{
x4[ i ] = "juejue1984*www.loyosoft.com*11.00*11*鸟"; // 注意其中的*标志
}
string x5 = "费用累计：2500*小计：400 ";
string x6 = "累计按金：3600*余额：1600 ";
string x7 = "”;
string x8 = "”;
a1.Add( x0 );
a1.Add( x1 );
a1.Add( x2 );
a1.Add( x3 );
a1.Add( x4 );
a1.Add( x5 );
a1.Add( x6 );
a1.Add( x7 );
a1.Add( x8 );
- Add( a1 );
然后在PrintDocument对象的PrinPage事件作如下处理：
Size sTotal = new Size( 420, e.PageBounds.Height );
Graphics g = e.Graphics;
Font fTitle = new Font( "宋体", 16 ); // 标题字体
int titleHeight = 20; // 标题的高度
int textHeight = 13; // 普通文本的高度
Font fText = new Font( "宋体", 9 ); // 文本字体
int top = 30; // 顶部间距
int left = 10; // 左边距
int right = 10; // 右边距
int titleMargin = 15; // 标题和正文行间距
int textMargin = 5; // 行间距
int rectangleMargin = 3; // 边框和文本间距
int oneHeight = 19; // 一行文本 + 2 * 行间距的高度
int oneWidth = sTotal.Width - left - right; // 打印内容的宽度
int y = 0;
while ( j < a.Count ) // Count为要打印的患者个数
{
ArrayList a3 = a[ j ] as ArrayList; // a3位要打印的患者的清单内容。
if( y >= e.PageBounds.Height - titleHeight ) // 如果已经到了底部则开始下一页
{
e.HasMorePages = true;
return;
}
//
string x = a3[ 0 ] as string;
if( !this.JudgeString( x ) ) // 如果此行记录还未打印过
{
//string x = "住院患者一日清单"; // a1
SizeF sTitle = g.MeasureString( x, fTitle ); // 计算标题的长度和高度
Point pTitle = new Point( ( sTotal.Width - (int)sTitle.Width ) / 2, y + top ); // 使标题绝对居中
y += top; // 1
//
g.DrawString( x, fTitle, Brushes.Black, pTitle.X, y ); // 标题
this.AddPrintedSign( ref x );
a3[ 0 ] = x; // 标记该患者的此行内容为已经打印过
y += titleHeight + titleMargin; // Y坐标下移
}
//
if( y >= e.PageBounds.Height - oneHeight )
{
e.HasMorePages = true;
return;
}
//// 正文第一行
string r1 = a3[ 1 ] as String;
if( !this.JudgeString( r1 ) )
{
g.DrawString( r1, fText, Brushes.Black, left, y );
this.AddPrintedSign( ref r1 );
a3[ 1 ] = r1;
y += textHeight + textMargin; // 3
}
//
if( y >= e.PageBounds.Height - oneHeight )
{
e.HasMorePages = true;
return;
}
//
//// 正文第二行
string r2 = a3[ 2 ] as String;
if( !this.JudgeString( r2 ) )
{
g.DrawString( r2, fText, Brushes.Black, left, y );
this.AddPrintedSign( ref r2 );
a3[ 2 ] = r2;
y += textHeight + textMargin; // 4
}
//
if( y >= e.PageBounds.Height - oneHeight )
{
e.HasMorePages = true;
return;
}
//
////内容
string column = a3[ 3 ] as string;
if( !this.JudgeString( column ) )
{
string[] c = column.Split( new char[] { '*' } );
Rectangle R1 = new Rectangle( left, y, oneWidth, oneHeight );
g.DrawRectangle( Pens.Black, R1 );
g.DrawLine( Pens.Black, new Point( R1.X + R1.Width * 4 / 16, R1.Y ), new Point( R1.X + R1.Width * 4 / 16, R1.Y + R1.Height ) );
g.DrawLine( Pens.Black, new Point( R1.X + R1.Width * 10 / 16, R1.Y ), new Point( R1.X + R1.Width * 10 / 16, R1.Y + R1.Height ) );
g.DrawLine( Pens.Black, new Point( R1.X + R1.Width * 12 / 16, R1.Y ), new Point( R1.X + R1.Width * 12 / 16, R1.Y + R1.Height ) );
g.DrawLine( Pens.Black, new Point( R1.X + R1.Width * 14 / 16, R1.Y ), new Point( R1.X + R1.Width * 14 / 16, R1.Y + R1.Height ) );
g.DrawString( c[ 0 ], fText, Brushes.Black, R1.X + rectangleMargin, R1.Y + rectangleMargin ); // 项目编号 //a4.1
g.DrawString( c[ 1 ], fText, Brushes.Black, R1.X + rectangleMargin + R1.Width * 4 / 16, R1.Y + rectangleMargin );// 项目名称 // a4.2
g.DrawString( c[ 2 ], fText, Brushes.Black, R1.X + rectangleMargin + R1.Width * 10 / 16, R1.Y + rectangleMargin );//单价 //a4.3
g.DrawString( c[ 3 ], fText, Brushes.Black, R1.X + rectangleMargin + R1.Width * 12 / 16, R1.Y + rectangleMargin ); //数量 //a4.4
g.DrawString( c[ 4 ], fText, Brushes.Black, R1.X + rectangleMargin + R1.Width * 14 / 16, R1.Y + rectangleMargin );//单位 //a4.5
this.AddPrintedSign( ref column );
a3[ 3 ] = column;
y += oneHeight;
}
//
if( y >= e.PageBounds.Height - oneHeight )
{
e.HasMorePages = true;
return;
}
//
string[] row = a3[ 4 ] as string[];
int Row = row.Length;
for( int i = 0; i < Row; i ++ )
{
if( !this.JudgeString( row[ i ] ) )
{
string[] r = row[ i ].Split( new Char[] { '*' } );
g.DrawLine( Pens.Black, new Point( left + oneWidth * 0 / 16, y ), new Point( left + oneWidth * 0 / 16, y + oneHeight ) );
g.DrawLine( Pens.Black, new Point( left + oneWidth * 4 / 16, y ), new Point( left + oneWidth * 4 / 16, y + oneHeight ) );
g.DrawLine( Pens.Black, new Point( left + oneWidth * 10 / 16, y ), new Point( left + oneWidth * 10 / 16, y + oneHeight ) );
g.DrawLine( Pens.Black, new Point( left + oneWidth * 12 / 16, y ), new Point( left + oneWidth * 12 / 16, y + oneHeight ) );
g.DrawLine( Pens.Black, new Point( left + oneWidth * 14 / 16, y ), new Point( left + oneWidth * 14 / 16, y + oneHeight ) );
g.DrawLine( Pens.Black, new Point( left + oneWidth * 16 / 16, y ), new Point( left + oneWidth * 16 / 16, y + oneHeight ) );
g.DrawString( r[ 0 ], fText, Brushes.Red, left + rectangleMargin, y + rectangleMargin ); //a5.1
g.DrawString( r[ 1 ], fText, Brushes.Red, left + rectangleMargin + oneWidth * 4 / 16, y + rectangleMargin ); //a5.2
g.DrawString( r[ 2 ], fText, Brushes.Red, left + rectangleMargin + oneWidth * 10 / 16, y + rectangleMargin );//a5.3
g.DrawString( r[ 3 ], fText, Brushes.Red, left + rectangleMargin + oneWidth * 12 / 16, y + rectangleMargin );//a5.4
g.DrawString( r[ 4 ], fText, Brushes.Red, left + rectangleMargin + oneWidth * 14 / 16, y + rectangleMargin );//a5.5
this.AddPrintedSign( ref row[ i ] );
y += oneHeight;
}
//
if( y >= e.PageBounds.Height - oneHeight )
{
e.HasMorePages = true;
return;
}
//
if( i == Row - 1 )
{
g.DrawLine( Pens.Black, new Point( left, y ), new Point( sTotal.Width - left - right, y ) );
}
}
//费用累计
//
if( y >= e.PageBounds.Height - oneHeight )
{
e.HasMorePages = true;
return;
}
//
////费用累计
string feeTotal = a3[ 5 ] as String;
if( !this.JudgeString( feeTotal ) )
{
string[] feeT = feeTotal.Split( new char[] { '*' } );
Rectangle R3 = new Rectangle( left, y, oneWidth, oneHeight );
g.DrawRectangle( Pens.Black, R3 );
g.DrawLine( Pens.Black, new Point( left + oneWidth * 10 / 16, y ), new Point( left + oneWidth * 10 / 16, y + R3.Height ) );
g.DrawString( feeT[ 0 ], fText, Brushes.Black, R3.X + rectangleMargin, y + rectangleMargin );
g.DrawString( feeT[ 1 ], fText, Brushes.Black, left + 2 * rectangleMargin + R3.Width * 10 / 16, y + rectangleMargin );
this.AddPrintedSign( ref feeTotal );
a3[ 5 ] = feeTotal;
y += oneHeight;
}
//
if( y >= e.PageBounds.Height - oneHeight )
{
e.HasMorePages = true;
return;
}
//
////费用按金
string feeBalance = a3[ 6 ] as String;
if( !this.JudgeString( feeBalance ) )
{
string[] feeB = feeBalance.Split( new char[] { '*' } );
Rectangle R4 = new Rectangle( left, y, oneWidth, oneHeight );
g.DrawRectangle( Pens.Black, R4 );
g.DrawLine( Pens.Black, new Point( left + oneWidth * 10 / 16, y ), new Point( left + oneWidth * 10 / 16, y + R4.Height ) );
g.DrawString( feeB[ 0 ], fText, Brushes.Black, left + rectangleMargin, y + rectangleMargin );
g.DrawString( feeB[ 1 ], fText, Brushes.Black, left + 2 * rectangleMargin + oneWidth * 10 / 16, y + rectangleMargin );
this.AddPrintedSign( ref feeBalance );
a3[ 6 ] = feeBalance;
y += oneHeight;
}
//// 备注
//string remark = " 备注：此清单一式两份，正联由患者或者家属签字，科室留存，付联由患者保存，可随时查询。如24小时不签字，不质疑视为认可费用。如病情需要变更医嘱另行通知。/r/n" +
// " 注：省保或者市保的比例为自费比例。";
string remark1 = a3[ 7 ] as String;
SizeF remarkSize = g.MeasureString( remark1, fText );
int Row2 = ( int )remarkSize.Width / ( oneWidth - 2 * rectangleMargin );
if( Row2 * ( oneWidth - 2 * rectangleMargin ) < (int)remarkSize.Width )
{
Row2 += 1;
}
//
if( y >= e.PageBounds.Height - ( Row2 + 1 ) * textHeight + 2 * rectangleMargin + Row2 * textMargin )
{
e.HasMorePages = true;
return;
}
//
if( !this.JudgeString( remark1 ) )
{
Rectangle R5 = new Rectangle( left, y, oneWidth, ( Row2 + 1 ) * textHeight + 2 * rectangleMargin + Row2 * textMargin );
g.DrawRectangle( Pens.Black, R5 );
R5.Offset( 2, 5 );
g.DrawString( remark1, fText, Brushes.Black, R5 );
this.AddPrintedSign( ref remark1 );
a3[ 7 ] = remark1;
y += R5.Height;
}
//
if( y >= e.PageBounds.Height - 3 * oneHeight )
{
e.HasMorePages = true;
return;
}
////签字
string signature = a3[ 8 ] as String;
Rectangle R6 = new Rectangle( left, y, oneWidth, 2 * rectangleMargin + 3 * textHeight + 2 * textMargin );
if( !this.JudgeString( signature ) )
{
g.DrawRectangle( Pens.Black, R6 );
g.DrawString( signature, fText, Brushes.Black, left, y + rectangleMargin + textMargin + textHeight );
this.AddPrintedSign( ref signature );
a3[ 8 ] = signature;
y += R6.Height;
}
j ++;
}
j = 0; // 打印完毕
e.HasMorePages = false;
}
判断一行内容是否已经打印过：
/// <summary>
/// 判断该字符串最后一个字符是否是 * 号，如果是，则表示已经打印过
/// </summary>
/// <param name="s">需要判断的字符串</param>
/// <returns>如果有则返回true，否则返回false</returns>
private bool JudgeString( string s )
{
int l = s.Length;
if( s[ l - 1 ] != '*' )
{
return false;
}
return true;
}
将已经打印过的内容标记为已打印
/// <summary>
/// 将已经打印过的行最后一个字符标记为*，表示该行已经打印
/// </summary>
/// <param name="s">字符串对象</param>
private void AddPrintedSign( ref string s )
{
int l = s.Length;
s = s.Replace( s.Substring( l - 1, 1 ), "*" );
}
