C#中使用[GDI+]+PrintDocument实现打印

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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 = newstring[ 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 );

a. 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 ), "*" );

}