/* Code revised from chapter 7 GDI+ Custom Controls with Visual C# 2005 By Iulian Serban, Dragos Brezoi, Tiberiu Radu, Adam Ward Language English Paperback 272 pages [191mm x 235mm] Release date July 2006 ISBN 1904811604 Sample chapter http://international.us.server12.fileserver.kutayzorlu.com/files/download/2017/01/1604_CustomControls_SampleChapter_uuid-a206fb53-f923-4070-9a8b-d644cd6fc2fa_crc-0.pdf For More info on GDI+ Custom Control with Microsoft Visual C# book visit website www.packtpub.com */ using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Drawing.Printing; namespace PrintingCustomControlApp1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { printableRichTextBox1.Print(false); } private System.ComponentModel.IContainer components = null; /// <summary> /// Clean up any resources being used. /// </summary> /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param> protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.printableRichTextBox1 = new PrintingCustomControlApp1.PrintableRichTextBox(); this.button1 = new System.Windows.Forms.Button(); this.SuspendLayout(); // // printableRichTextBox1 // this.printableRichTextBox1.Location = new System.Drawing.Point(77, 25); this.printableRichTextBox1.Name = "printableRichTextBox1"; this.printableRichTextBox1.Size = new System.Drawing.Size(124, 117); this.printableRichTextBox1.TabIndex = 0; this.printableRichTextBox1.Text = ""; // // button1 // this.button1.Location = new System.Drawing.Point(63, 191); this.button1.Name = "button1"; this.button1.Size = new System.Drawing.Size(126, 30); this.button1.TabIndex = 1; this.button1.Text = "Print the Control text"; this.button1.UseVisualStyleBackColor = true; this.button1.Click += new System.EventHandler(this.button1_Click); // // Form1 // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(292, 266); this.Controls.Add(this.button1); this.Controls.Add(this.printableRichTextBox1); this.Name = "Form1"; this.Text = "Form1"; this.ResumeLayout(false); } #endregion private PrintableRichTextBox printableRichTextBox1; private System.Windows.Forms.Button button1; [STAThread] static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form1()); } } public partial class PrintableRichTextBox : RichTextBox { public PrintableRichTextBox() { InitializeComponent(); _prtdoc = new PrintDocument(); _prtdoc.PrintPage += new PrintPageEventHandler(_prtdoc_PrintPage); } string _text = null; int _pageNumber = 0; int _start = 0; PrintDocument _prtdoc = null; private bool DrawText(Graphics target, Graphics measurer, RectangleF r, Brush brsh) { if (r.Height < this.Font.Height) throw new ArgumentException("The rectangle is not tall enough to fit a single line of text inside."); int charsFit = 0; int linesFit = 0; int cut = 0; string temp = _text.Substring(_start); StringFormat format = new StringFormat(StringFormatFlags.FitBlackBox | StringFormatFlags.LineLimit); //measure how much of the string we can fit into the rectangle measurer.MeasureString(temp, this.Font, r.Size, format, out charsFit, out linesFit); cut = BreakText(temp, charsFit); if (cut != charsFit) temp = temp.Substring(0, cut); bool h = true; h &= true; target.DrawString(temp.Trim(' '), this.Font, brsh, r, format); _start += cut; if (_start == _text.Length) { _start = 0; //reset the location so we can repeat the document return true; //finished printing } else return false; } private static int BreakText(string text, int approx) { if (approx == 0) throw new ArgumentException(); if (approx < text.Length) { //are we in the middle of a word? if (char.IsLetterOrDigit(text[approx]) && char.IsLetterOrDigit(text[approx - 1])) { int temp = text.LastIndexOf(' ', approx, approx + 1); if (temp >= 0) return temp; } } return approx; } public void Print(bool hardcopy) { _text = this.Text; //create a PrintDialog based on the PrintDocument PrintDialog pdlg = new PrintDialog(); pdlg.Document = _prtdoc; //show the PrintDialog if (pdlg.ShowDialog() == DialogResult.OK) { //create a PageSetupDialog based on the PrintDocument and PrintDialog PageSetupDialog psd = new PageSetupDialog(); psd.EnableMetric = true; //Ensure all dialog measurements are in metric psd.Document = pdlg.Document; //show the PageSetupDialog if (psd.ShowDialog() == DialogResult.OK) { //apply the settings of both dialogs _prtdoc.DefaultPageSettings = psd.PageSettings; //decide what action to take if (hardcopy) { //actually print hardcopy _prtdoc.Print(); } else { //preview onscreen instead PrintPreviewDialog prvw = new PrintPreviewDialog(); prvw.Document = _prtdoc; prvw.ShowDialog(); } } } } private void _prtdoc_PrintPage(object sender, PrintPageEventArgs e) { e.Graphics.Clip = new Region(e.MarginBounds); //this method does all our printing work Single x = e.MarginBounds.Left; Single y = e.MarginBounds.Top; if (_pageNumber++ == 0) y += 30; RectangleF mainTextArea = RectangleF.FromLTRB(x, y, e.MarginBounds.Right, e.MarginBounds.Bottom); //draw the text if (DrawText(e.Graphics, e.PageSettings.PrinterSettings.CreateMeasurementGraphics(), mainTextArea, Brushes.Black)) { e.HasMorePages = false; //the end has been reached _pageNumber = 0; } else e.HasMorePages = true; } private System.ComponentModel.IContainer components = null; /// <summary> /// Clean up any resources being used. /// </summary> /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param> protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Component Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { components = new System.ComponentModel.Container(); //this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; } #endregion } }