简单文本打印,PrintDocument使用

  1using System;
  2using System.Text;
  3using System.Drawing;
  4using System.Drawing.Printing;
  5using System.Windows.Forms;
  6using System.IO;
  7
  8namespace TextPrinter
  9{
 10    public class TextPrinter
 11    {
 12        private string m_Title;
 13        private string m_Context;
 14        private Font m_Font;
 15        private Font m_TitleFont;
 16        private SizeF m_WordSize;
 17        private int m_CurrentPage;
 18        private Rectangle m_PrintableArea;
 19        private string m_LeftContext;
 20        private int m_RowPadding;
 21        private TitleType m_TitleType;
 22        private FooterType m_FooterType;
 23        //private int m_TotalPage;
 24        //private bool m_Prepare;
 25        private string m_FooterFormat;
 26        private PrintDocument printDoc;
 27
 28        public TextPrinter()
 29        {
 30            printDoc = new PrintDocument();
 31            printDoc.PrintPage += new PrintPageEventHandler(pd_PrintPage);
 32            m_Font = SystemFonts.DefaultFont;
 33            m_TitleFont = SystemFonts.CaptionFont;
 34            m_TitleType = TitleType.None;
 35            m_FooterType = FooterType.None;
 36            FooterFormat = "第{0}页";
 37        }
 38
 39        /**//// <summary>
 40        /// Report Title
 41        /// </summary>
 42        public string Title
 43        {
 44            get { return m_Title; }
 45            set { m_Title = value; }
 46        }
 47
 48        /**//// <summary>
 49        /// Report Context string
 50        /// </summary>
 51        public string Context
 52        {
 53            get { return m_Context; }
 54            set { m_Context = value; }
 55        }
 56
 57        /**//// <summary>
 58        /// Report Context Font
 59        /// </summary>
 60        public Font Font
 61        {
 62            get { return m_Font; }
 63            set    { m_Font = value; }
 64        }
 65
 66        /**//// <summary>
 67        /// Report Title Font
 68        /// </summary>
 69        public Font TitleFont
 70        {
 71            get { return m_TitleFont; }
 72            set { m_TitleFont = value; }
 73        }
 74
 75        /**//// <summary>
 76        /// Report Title Type
 77        /// </summary>
 78        public TitleType TitleType
 79        {
 80            get { return m_TitleType; }
 81            set { m_TitleType = value; }
 82        }
 83
 84        /**//// <summary>
 85        /// Report Footer Type
 86        /// </summary>
 87        public FooterType FooterType
 88        {
 89            get { return m_FooterType; }
 90            set { m_FooterType = value; }
 91        }
 92
 93        /**//// <summary>
 94        /// Report Footer Format. etc "第{0}页"
 95        /// </summary>
 96        public string FooterFormat
 97        {
 98            get { return m_FooterFormat; }
 99            set { m_FooterFormat = value; }
100        }
101
102        //public int TotalPage
103        //{
104        //    get { return m_TotalPage; }
105        //}
106
107        /**//// <summary>
108        /// Report row padding. 行间距
109        /// </summary>
110        public int RowPadding
111        {
112            get { return m_RowPadding; }
113            set { m_RowPadding = value; }
114        }
115
116        /**//// <summary>
117        /// 初始化打印
118        /// </summary>
119        private void InitPrint()
120        {
121            m_CurrentPage = 1;
122        }
123
124        /**//// <summary>
125        /// 打印机设置
126        /// </summary>
127        public void PrintSetting()
128        {
129            PrintDialog pd = new PrintDialog();
130            pd.Document = printDoc;
131            pd.ShowDialog();
132        }
133
134        /**//// <summary>
135        /// 纸张设置
136        /// </summary>
137        public void PageSetting()
138        {
139            PageSetupDialog psd = new PageSetupDialog();
140            psd.Document = printDoc;
141            psd.ShowDialog();
142        }
143
144        /**//// <summary>
145        /// 预览报表
146        /// </summary>
147        public void Preview()
148        {
149            InitPrint();
150            PrintPreviewDialog pdlg = new PrintPreviewDialog();
151            pdlg.Document = printDoc;
152            pdlg.WindowState = FormWindowState.Maximized;
153            pdlg.PrintPreviewControl.Zoom = 1;
154            //printDoc.Print();
155            //m_Prepare = true;
156            pdlg.ShowDialog();
157        }
158        
159        /**//// <summary>
160        /// 打印报表
161        /// </summary>
162        public void Print()
163        {
164            InitPrint();
165            printDoc.Print();
166        }
167
168        /**//// <summary>
169        /// 从内容Context中读出一行
170        /// </summary>
171        /// <param name="g"></param>
172        /// <returns></returns>
173        private string GetLine(Graphics g)
174        {
175            string tmp = String.Empty;
176            try
177            {
178                SizeF size;
179                for (int i = 0; i < m_LeftContext.Length; i++)
180                {
181                    size = g.MeasureString(m_LeftContext.Substring(0, i), Font);
182                    if (size.Width > m_PrintableArea.Width)
183                    {
184                        tmp = m_LeftContext.Substring(0, i - 1);
185                        m_LeftContext = m_LeftContext.Substring(i - 1);
186                        return tmp;
187                    }
188                    if (m_LeftContext.Substring(0, i).IndexOf("\n", 0) >= 0)
189                    {
190                        tmp = m_LeftContext.Substring(0, i);
191                        m_LeftContext = m_LeftContext.Substring(i);
192                        return tmp;
193                    }
194                }
195                tmp = m_LeftContext;
196                m_LeftContext = String.Empty;
197                return tmp;
198            }
199            finally
200            {
201                tmp = tmp.Replace("\n", "");
202            }
203        }
204
205        /**//// <summary>
206        /// 打印主过程
207        /// </summary>
208        /// <param name="sender"></param>
209        /// <param name="e"></param>
210        private void pd_PrintPage(object sender, PrintPageEventArgs e)
211        {
212            int top = 0;
213            if (m_CurrentPage == 1)
214            {
215                m_LeftContext = Context;
216                m_LeftContext = m_LeftContext.Replace("\r", "");
217                m_PrintableArea = e.MarginBounds;
218                m_WordSize = e.Graphics.MeasureString("W", Font);
219                if (TitleType == TitleType.OnlyFirstPage)
220                    top += DrawTitle(e.Graphics);
221            }
222            if (TitleType == TitleType.AllPage)
223                top += DrawTitle(e.Graphics);
224            while (top < m_PrintableArea.Height - (int)Math.Floor(m_WordSize.Height))
225            {
226                string tmp = GetLine(e.Graphics);
227                e.Graphics.DrawString(tmp, Font, SystemBrushes.MenuText, e.MarginBounds.X, e.MarginBounds.Y + top);
228                top += (int)Math.Floor(m_WordSize.Height) + RowPadding;
229            }
230            if (FooterType != FooterType.None)
231                DrawFooter(e.Graphics);
232            e.HasMorePages = m_LeftContext != string.Empty;
233            m_CurrentPage++;
234        }
235
236        /**//// <summary>
237        /// Print Report Title
238        /// </summary>
239        /// <param name="g"></param>
240        /// <returns></returns>
241        private int DrawTitle(Graphics g)
242        {
243            SizeF size = g.MeasureString(Title, TitleFont);
244            DrawString(g, Title, TitleFont, SystemBrushes.WindowText, m_PrintableArea, StringAlignment.Center, StringAlignment.Near);
245
246            return (int)Math.Floor(size.Height);
247        }
248
249        /**//// <summary>
250        /// Print Report Footer
251        /// </summary>
252        /// <param name="g"></param>
253        private void DrawFooter(Graphics g)
254        {
255            string tmp = string.Empty;
256            if (FooterType == FooterType.OnlyPageNum)
257                tmp = string.Format(FooterFormat, m_CurrentPage);
258            //else if (FooterType == FooterType.PageNumOfTotal)
259            //    tmp = string.Format("{0} of {1}", m_CurrentPage, 0);
260            SizeF size = g.MeasureString(tmp, SystemFonts.DefaultFont);
261            DrawString(g, tmp, SystemFonts.DefaultFont, SystemBrushes.WindowText,
262                new Rectangle(m_PrintableArea.X, m_PrintableArea.Bottom - (int)size.Height,
263                m_PrintableArea.Width, (int)size.Height), StringAlignment.Far, StringAlignment.Center);
264        }
265
266        /**//// <summary>
267        /// Draw a string with alignment parameter
268        /// </summary>
269        /// <param name="g"></param>
270        /// <param name="s"></param>
271        /// <param name="font"></param>
272        /// <param name="brush"></param>
273        /// <param name="rect"></param>
274        /// <param name="alignment"></param>
275        /// <param name="lineAlignment"></param>
276        private void DrawString(Graphics g, string s, Font font, Brush brush, Rectangle rect, StringAlignment alignment, StringAlignment lineAlignment)
277        {
278            StringFormat sf = new StringFormat();
279            sf.Alignment = alignment;
280            sf.LineAlignment = lineAlignment;
281
282            g.DrawString(s, font, brush, rect, sf);
283        }
284
285        public static void TestPreview(string pStr)
286        {
287            TextPrinter textPrinter = new TextPrinter();
288            textPrinter.Context = pStr;
289            textPrinter.Font = new Font("宋体", 16, FontStyle.Regular, GraphicsUnit.Pixel);
290            textPrinter.Title = "打印测试页";
291            textPrinter.TitleFont = new Font("宋体", 24, FontStyle.Bold, GraphicsUnit.Pixel);
292            textPrinter.TitleType = TitleType.AllPage;
293            textPrinter.FooterType = FooterType.OnlyPageNum;
294            textPrinter.FooterFormat = "Page {0}";
295            //textPrinter.PrintSetting();
296            //textPrinter.PageSetting();
297            textPrinter.Preview();
298            //textPrinter.Print();
299        }
300    }
301
302    public enum TitleType
303    {
304        None,
305        OnlyFirstPage,
306        AllPage
307    }
308
309    public enum FooterType
310    {
311        None,
312        OnlyPageNum
313        //PageNumOfTotal
314    }
315}
316