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annotate org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet133.d @ 112:9f4c18c268b2
Update to compile and execute with dmd 2.052.
| author | kntroh |
|---|---|
| date | Wed, 16 Mar 2011 21:53:53 +0900 |
| parents | 8ae65ae167f5 |
| children | 536e43f63c81 |
| rev | line source |
|---|---|
| 28 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2004 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * D Port: | |
| 11 * Adam Chrapkowski <adam DOT chrapkowski AT gmail DOT com> | |
| 12 *******************************************************************************/ | |
| 13 module org.eclipse.swt.snippets.Snippet133; | |
|
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14 |
| 28 | 15 /* |
| 16 * Printing example snippet: print text to printer, with word wrap and pagination | |
| 17 * | |
| 18 * For a list of all SWT example snippets see | |
| 19 * http://www.eclipse.org/swt/snippets/ | |
| 20 */ | |
| 21 | |
| 22 // org.eclipse.swt | |
| 23 import org.eclipse.swt.SWT; | |
| 24 // org.eclipse.swt.graphics | |
| 25 import org.eclipse.swt.graphics.Color, | |
| 26 org.eclipse.swt.graphics.Font, | |
| 27 org.eclipse.swt.graphics.FontData, | |
| 28 org.eclipse.swt.graphics.GC, | |
| 29 org.eclipse.swt.graphics.Rectangle, | |
| 30 org.eclipse.swt.graphics.RGB; | |
| 31 // org.eclipse.swt.widgets | |
| 32 import org.eclipse.swt.widgets.Display, | |
| 33 org.eclipse.swt.widgets.ColorDialog, | |
| 34 org.eclipse.swt.widgets.FileDialog, | |
| 35 org.eclipse.swt.widgets.FontDialog, | |
| 36 org.eclipse.swt.widgets.Menu, | |
| 37 org.eclipse.swt.widgets.MenuItem, | |
| 38 org.eclipse.swt.widgets.MessageBox, | |
| 39 org.eclipse.swt.widgets.Shell, | |
| 40 org.eclipse.swt.widgets.Text; | |
| 41 // org.eclipse.swt.events | |
| 42 import org.eclipse.swt.events.SelectionAdapter, | |
| 43 org.eclipse.swt.events.SelectionEvent; | |
| 44 // org.eclipse.swt.layout | |
| 45 import org.eclipse.swt.layout.FillLayout; | |
| 46 // org.eclipse.swt.printing | |
| 47 import org.eclipse.swt.printing.PrintDialog, | |
| 48 org.eclipse.swt.printing.Printer, | |
| 49 org.eclipse.swt.printing.PrinterData; | |
| 50 // java | |
| 51 import java.lang.all; | |
| 52 | |
| 53 // tango | |
|
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54 //import tango.core.Thread; |
| 112 | 55 version(Tango){ |
| 56 import tango.io.device.File; | |
| 57 import tango.text.Unicode; | |
| 58 } else { // Phobos | |
| 59 import std.file; | |
| 60 import std.ctype; | |
| 61 alias isprint isPrintable; | |
| 62 } | |
| 28 | 63 |
| 64 public void | |
| 65 main(String[] args){ | |
| 66 (new Snippet133).open(); | |
| 67 } | |
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68 |
| 28 | 69 class Snippet133{ |
| 70 Display display; | |
| 71 Shell shell; | |
| 72 Text text; | |
| 73 Font font; | |
| 74 Color foregroundColor, backgroundColor; | |
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75 |
| 28 | 76 Printer printer; |
| 77 GC gc; | |
| 78 FontData[] printerFontData; | |
| 79 RGB printerForeground, printerBackground; | |
| 80 | |
| 81 int lineHeight = 0; | |
| 82 int tabWidth = 0; | |
| 83 int leftMargin, rightMargin, topMargin, bottomMargin; | |
| 84 int x, y; | |
| 85 int index, end; | |
| 86 String textToPrint; | |
| 87 String tabs; | |
| 88 StringBuffer wordBuffer; | |
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89 |
| 28 | 90 public void |
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91 open(){ |
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92 display = new Display(); |
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93 shell = new Shell(display); |
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94 shell.setLayout(new FillLayout()); |
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95 shell.setText("Print Text"); |
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96 text = new Text(shell, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL); |
| 28 | 97 |
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98 Menu menuBar = new Menu(shell, SWT.BAR); |
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99 shell.setMenuBar(menuBar); |
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100 MenuItem item = new MenuItem(menuBar, SWT.CASCADE); |
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101 item.setText("&File"); |
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102 Menu fileMenu = new Menu(shell, SWT.DROP_DOWN); |
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103 item.setMenu(fileMenu); |
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104 item = new MenuItem(fileMenu, SWT.PUSH); |
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105 item.setText("&Open..."); |
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106 item.setAccelerator(SWT.CTRL + 'O'); |
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107 item.addSelectionListener(new class() SelectionAdapter{ |
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108 public void widgetSelected(SelectionEvent event) { |
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109 menuOpen(); |
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110 } |
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111 }); |
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112 item = new MenuItem(fileMenu, SWT.PUSH); |
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113 item.setText("Font..."); |
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114 item.addSelectionListener(new class() SelectionAdapter{ |
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115 public void widgetSelected(SelectionEvent event){ |
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116 menuFont(); |
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117 } |
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118 }); |
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119 item = new MenuItem(fileMenu, SWT.PUSH); |
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120 item.setText("Foreground Color..."); |
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121 item.addSelectionListener(new class() SelectionAdapter{ |
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122 public void widgetSelected(SelectionEvent event){ |
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123 menuForegroundColor(); |
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124 } |
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125 }); |
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126 item = new MenuItem(fileMenu, SWT.PUSH); |
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127 item.setText("Background Color..."); |
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128 item.addSelectionListener(new class() SelectionAdapter{ |
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129 public void widgetSelected(SelectionEvent event) { |
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130 menuBackgroundColor(); |
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131 } |
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132 }); |
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133 item = new MenuItem(fileMenu, SWT.PUSH); |
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134 item.setText("&Print..."); |
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135 item.setAccelerator(SWT.CTRL + 'P'); |
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136 item.addSelectionListener(new class() SelectionAdapter{ |
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137 public void widgetSelected(SelectionEvent event) { |
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138 menuPrint(); |
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139 } |
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140 }); |
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141 new MenuItem(fileMenu, SWT.SEPARATOR); |
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142 item = new MenuItem(fileMenu, SWT.PUSH); |
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143 item.setText("E&xit"); |
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144 item.addSelectionListener(new class() SelectionAdapter{ |
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145 public void widgetSelected(SelectionEvent event){ |
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146 System.exit(0); |
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147 } |
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148 }); |
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149 |
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150 shell.open(); |
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151 while (!shell.isDisposed()) { |
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152 if (!display.readAndDispatch()) display.sleep(); |
| 28 | 153 } |
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154 if (font !is null) font.dispose(); |
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155 if (foregroundColor !is null) foregroundColor.dispose(); |
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156 if (backgroundColor !is null) backgroundColor.dispose(); |
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157 display.dispose(); |
| 28 | 158 } |
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159 |
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160 private void menuOpen(){ |
| 28 | 161 String textString; |
| 162 FileDialog dialog = new FileDialog(shell, SWT.OPEN); | |
| 163 dialog.setFilterExtensions(["*.java", "*.*"]); | |
| 164 String name = dialog.open(); | |
| 165 if(name is null) return; | |
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166 |
| 28 | 167 try{ |
| 168 try{ | |
| 112 | 169 version(Tango){ |
| 170 textString = cast(char[])File.get(name); | |
| 171 } else { // Phobos | |
| 172 textString = cast(String)std.file.read(name); | |
| 173 } | |
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174 } |
| 28 | 175 catch (IOException e){ |
| 176 MessageBox box = new MessageBox(shell, SWT.ICON_ERROR); | |
| 177 box.setMessage("Error reading file:\n" ~ name); | |
| 178 box.open(); | |
| 179 return; | |
| 180 } | |
| 181 } | |
| 182 catch(Exception e){ | |
| 183 MessageBox box = new MessageBox(shell, SWT.ICON_ERROR); | |
| 184 box.setMessage("File not found:\n" ~ name); | |
| 185 box.open(); | |
| 186 return; | |
| 187 } | |
| 188 text.setText(textString); | |
| 189 } | |
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190 |
| 28 | 191 private void |
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192 menuFont(){ |
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193 FontDialog fontDialog = new FontDialog(shell); |
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194 fontDialog.setFontList(text.getFont().getFontData()); |
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195 FontData fontData = fontDialog.open(); |
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196 if(fontData !is null){ |
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197 if(font !is null) font.dispose(); |
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198 font = new Font(display, fontData); |
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199 text.setFont(font); |
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200 } |
| 28 | 201 } |
| 202 | |
| 203 private void | |
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204 menuForegroundColor(){ |
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205 ColorDialog colorDialog = new ColorDialog(shell); |
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206 colorDialog.setRGB(text.getForeground().getRGB()); |
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207 RGB rgb = colorDialog.open(); |
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208 if(rgb !is null){ |
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209 if(foregroundColor !is null) foregroundColor.dispose(); |
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210 foregroundColor = new Color(display, rgb); |
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211 text.setForeground(foregroundColor); |
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212 } |
| 28 | 213 } |
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214 |
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215 private void |
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216 menuBackgroundColor(){ |
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217 ColorDialog colorDialog = new ColorDialog(shell); |
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218 colorDialog.setRGB(text.getBackground().getRGB()); |
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219 RGB rgb = colorDialog.open(); |
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220 if(rgb !is null){ |
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221 if(backgroundColor !is null) backgroundColor.dispose(); |
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222 backgroundColor = new Color(display, rgb); |
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223 text.setBackground(backgroundColor); |
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224 } |
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225 } |
| 28 | 226 |
| 227 private void | |
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228 menuPrint(){ |
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229 PrintDialog dialog = new PrintDialog(shell, SWT.NONE); |
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230 PrinterData data = dialog.open(); |
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231 if(data is null) return; |
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232 if(data.printToFile){ |
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233 data.fileName = "print.out"; // you probably want to ask the user for a filename |
| 28 | 234 } |
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235 |
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236 /* Get the text to print from the Text widget (you could get it from anywhere, i.e. your java model) */ |
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237 textToPrint = text.getText(); |
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238 |
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239 /* Get the font & foreground & background data. */ |
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240 printerFontData = text.getFont().getFontData(); |
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241 printerForeground = text.getForeground().getRGB(); |
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242 printerBackground = text.getBackground().getRGB(); |
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243 |
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244 /* Do the printing in a background thread so that spooling does not freeze the UI. */ |
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245 printer = new Printer(data); |
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246 Thread printingThread = new class ("Printing") Thread{ |
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247 private void |
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248 run(){ |
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249 print(printer); |
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250 printer.dispose(); |
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251 } |
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252 public |
| 112 | 253 this(String o_name){ |
|
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254 //this.name = o_name; |
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255 super(&run); |
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256 } |
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257 }; |
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258 printingThread.start(); |
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259 } |
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260 |
| 28 | 261 private void |
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262 print(Printer printer){ |
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263 if(printer.startJob("Text")){ // the string is the job name - shows up in the printer's job list |
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264 Rectangle clientArea = printer.getClientArea(); |
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265 Rectangle trim = printer.computeTrim(0, 0, 0, 0); |
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266 Point dpi = printer.getDPI(); |
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267 leftMargin = dpi.x + trim.x; // one inch from left side of paper |
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268 rightMargin = clientArea.width - dpi.x + trim.x + trim.width; // one inch from right side of paper |
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269 topMargin = dpi.y + trim.y; // one inch from top edge of paper |
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270 bottomMargin = clientArea.height - dpi.y + trim.y + trim.height; // one inch from bottom edge of paper |
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271 |
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272 /* Create a buffer for computing tab width. */ |
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273 int tabSize = 4; // is tab width a user setting in your UI? |
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274 StringBuffer tabBuffer = new StringBuffer(tabSize); |
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275 for (int i = 0; i < tabSize; i++) tabBuffer.append(' '); |
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276 tabs = tabBuffer.toString(); |
| 28 | 277 |
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278 /* Create printer GC, and create and set the printer font & foreground color. */ |
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279 gc = new GC(printer); |
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280 Font printerFont = new Font(printer, printerFontData); |
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281 Color printerForegroundColor = new Color(printer, printerForeground); |
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282 Color printerBackgroundColor = new Color(printer, printerBackground); |
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283 |
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284 gc.setFont(printerFont); |
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285 gc.setForeground(printerForegroundColor); |
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286 gc.setBackground(printerBackgroundColor); |
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287 tabWidth = gc.stringExtent(tabs).x; |
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288 lineHeight = gc.getFontMetrics().getHeight(); |
| 28 | 289 |
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290 /* Print text to current gc using word wrap */ |
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291 printText(); |
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292 printer.endJob(); |
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293 |
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294 /* Cleanup graphics resources used in printing */ |
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295 printerFont.dispose(); |
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296 printerForegroundColor.dispose(); |
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297 printerBackgroundColor.dispose(); |
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298 gc.dispose(); |
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299 } |
| 28 | 300 } |
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301 |
| 28 | 302 private void |
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303 printText(){ |
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304 printer.startPage(); |
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305 wordBuffer = new StringBuffer(); |
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306 x = leftMargin; |
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307 y = topMargin; |
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308 index = 0; |
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309 end = textToPrint.length; |
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310 while(index < end){ |
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311 char c = textToPrint.charAt(index); |
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312 index++; |
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313 if(c != 0){ |
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314 if(c == 0x0a || c == 0x0d){ |
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315 if(c == 0x0d && index < end && textToPrint.charAt(index) == 0x0a){ |
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316 index++; // if this is cr-lf, skip the lf |
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317 } |
| 28 | 318 printWordBuffer(); |
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319 newline(); |
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320 } |
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321 else{ |
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322 if(c != '\t'){ |
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323 wordBuffer.append(c); |
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324 } |
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325 if(isPrintable(c)){ |
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326 printWordBuffer(); |
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327 if (c == '\t'){ |
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328 x += tabWidth; |
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329 } |
| 28 | 330 } |
| 331 } | |
| 332 } | |
| 333 } | |
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334 if (y + lineHeight <= bottomMargin) { |
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335 printer.endPage(); |
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336 } |
| 28 | 337 } |
| 338 | |
| 339 private void | |
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340 printWordBuffer(){ |
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341 if(wordBuffer.length > 0){ |
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342 String word = wordBuffer.toString(); |
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343 int wordWidth = gc.stringExtent(word).x; |
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344 if(x + wordWidth > rightMargin){ |
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345 /* word doesn't fit on current line, so wrap */ |
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346 newline(); |
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347 } |
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348 gc.drawString(word, x, y, false); |
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349 x += wordWidth; |
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350 wordBuffer = new StringBuffer(); |
| 28 | 351 } |
| 352 } | |
| 353 | |
| 354 private void | |
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355 newline(){ |
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356 x = leftMargin; |
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357 y += lineHeight; |
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358 if(y + lineHeight > bottomMargin){ |
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359 printer.endPage(); |
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360 if(index + 1 < end){ |
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361 y = topMargin; |
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SWT Snippets build on windows
Frank Benoit <benoit@tionex.de>
parents:
29
diff
changeset
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362 printer.startPage(); |
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93b0e7382fd5
SWT Snippets build on windows
Frank Benoit <benoit@tionex.de>
parents:
29
diff
changeset
|
363 } |
| 28 | 364 } |
| 365 } | |
| 366 } | |
| 367 |