Mercurial > projects > dwt-mac
annotate dwt/printing/Printer.d @ 156:969e7de37c3d default tip
Fixes to get dwt to work with dmd and ldc
author | Jacob Carlborg <doob@me.com> |
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date | Wed, 08 Jul 2009 21:56:44 +0200 |
parents | 3d4579727e0e |
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rev | line source |
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1 /******************************************************************************* |
45 | 2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
120 | 10 * |
11 * Port to the D programming language: | |
12 * Jacob Carlborg <doob@me.com> | |
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13 *******************************************************************************/ |
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14 module dwt.printing.Printer; |
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15 |
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16 import dwt.dwthelper.utils; |
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17 |
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18 import dwt.DWT; |
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19 import dwt.DWTError; |
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20 import dwt.DWTException; |
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21 import dwt.graphics.Device; |
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22 import dwt.graphics.DeviceData; |
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23 import dwt.graphics.GCData; |
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24 import dwt.graphics.Point; |
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25 import dwt.graphics.Rectangle; |
45 | 26 import dwt.internal.cocoa.NSAffineTransform; |
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27 import dwt.internal.cocoa.NSArray; |
45 | 28 import dwt.internal.cocoa.NSBezierPath; |
29 import dwt.internal.cocoa.NSData; | |
30 import dwt.internal.cocoa.NSGraphicsContext; | |
31 import dwt.internal.cocoa.NSKeyedUnarchiver; | |
32 import dwt.internal.cocoa.NSPoint; | |
33 import dwt.internal.cocoa.NSPrintInfo; | |
34 import dwt.internal.cocoa.NSPrintOperation; | |
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35 import dwt.internal.cocoa.NSPrinter; |
45 | 36 import dwt.internal.cocoa.NSRect; |
37 import dwt.internal.cocoa.NSSize; | |
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38 import dwt.internal.cocoa.NSString; |
45 | 39 import dwt.internal.cocoa.NSView; |
40 import dwt.internal.cocoa.NSWindow; | |
41 import dwt.internal.cocoa.OS; | |
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42 |
120 | 43 import Carbon = dwt.internal.c.Carbon; |
44 import dwt.internal.objc.cocoa.Cocoa; | |
130 | 45 import objc = dwt.internal.objc.runtime; |
120 | 46 import dwt.printing.PrinterData; |
47 | |
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48 /** |
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49 * Instances of this class are used to print to a printer. |
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50 * Applications create a GC on a printer using <code>new GC(printer)</code> |
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51 * and then draw on the printer GC using the usual graphics calls. |
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52 * <p> |
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53 * A <code>Printer</code> object may be constructed by providing |
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54 * a <code>PrinterData</code> object which identifies the printer. |
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55 * A <code>PrintDialog</code> presents a print dialog to the user |
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56 * and returns an initialized instance of <code>PrinterData</code>. |
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57 * Alternatively, calling <code>new Printer()</code> will construct a |
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58 * printer object for the user's default printer. |
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59 * </p><p> |
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60 * Application code must explicitly invoke the <code>Printer.dispose()</code> |
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61 * method to release the operating system resources managed by each instance |
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62 * when those instances are no longer required. |
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63 * </p> |
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64 * |
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65 * @see PrinterData |
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66 * @see PrintDialog |
45 | 67 * @see <a href="http://www.eclipse.org/swt/snippets/#printing">Printing snippets</a> |
68 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
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69 */ |
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70 public final class Printer : Device { |
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71 PrinterData data; |
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72 NSPrinter printer; |
45 | 73 NSPrintInfo printInfo; |
74 NSPrintOperation operation; | |
75 NSView view; | |
76 NSWindow window; | |
77 bool isGCCreated; | |
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78 |
119
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79 static const String DRIVER = "Mac"; |
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80 |
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81 /** |
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82 * Returns an array of <code>PrinterData</code> objects |
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83 * representing all available printers. |
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84 * |
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85 * @return the list of available printers |
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86 */ |
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87 public static PrinterData[] getPrinterList() { |
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88 NSArray printers = NSPrinter.printerNames(); |
120 | 89 NSUInteger count = printers.count(); |
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90 PrinterData[] result = new PrinterData[count]; |
120 | 91 for (NSUInteger i = 0; i < count; i++) { |
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92 NSString str = new NSString(printers.objectAtIndex(i)); |
45 | 93 result[i] = new PrinterData(DRIVER, str.getString()); |
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94 } |
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95 return result; |
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96 } |
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97 |
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98 /** |
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99 * Returns a <code>PrinterData</code> object representing |
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100 * the default printer or <code>null</code> if there is no |
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101 * printer available on the System. |
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102 * |
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103 * @return the default printer data or null |
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104 * |
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105 * @since 2.1 |
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106 */ |
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107 public static PrinterData getDefaultPrinterData() { |
45 | 108 NSPrinter printer = NSPrintInfo.defaultPrinter(); |
109 if (printer is null) return null; | |
110 NSString str = printer.name(); | |
111 return new PrinterData(DRIVER, str.getString()); | |
112 | |
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113 } |
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114 |
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115 /** |
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116 * Constructs a new printer representing the default printer. |
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117 * <p> |
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118 * You must dispose the printer when it is no longer required. |
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119 * </p> |
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120 * |
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121 * @exception DWTError <ul> |
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122 * <li>ERROR_NO_HANDLES - if there are no valid printers |
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123 * </ul> |
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124 * |
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125 * @see Device#dispose |
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126 */ |
120 | 127 public this() { |
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128 this(null); |
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129 } |
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130 |
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131 /** |
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132 * Constructs a new printer given a <code>PrinterData</code> |
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133 * object representing the desired printer. |
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134 * <p> |
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135 * You must dispose the printer when it is no longer required. |
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136 * </p> |
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137 * |
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138 * @param data the printer data for the specified printer |
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139 * |
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140 * @exception IllegalArgumentException <ul> |
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141 * <li>ERROR_INVALID_ARGUMENT - if the specified printer data does not represent a valid printer |
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142 * </ul> |
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143 * @exception DWTError <ul> |
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144 * <li>ERROR_NO_HANDLES - if there are no valid printers |
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145 * </ul> |
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146 * |
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147 * @see Device#dispose |
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148 */ |
120 | 149 public this(PrinterData data) { |
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150 super (checkNull(data)); |
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151 } |
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152 |
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153 /** |
45 | 154 * Given a <em>client area</em> (as described by the arguments), |
155 * returns a rectangle, relative to the client area's coordinates, | |
156 * that is the client area expanded by the printer's trim (or minimum margins). | |
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157 * <p> |
45 | 158 * Most printers have a minimum margin on each edge of the paper where the |
159 * printer device is unable to print. This margin is known as the "trim." | |
160 * This method can be used to calculate the printer's minimum margins | |
161 * by passing in a client area of 0, 0, 0, 0 and then using the resulting | |
162 * x and y coordinates (which will be <= 0) to determine the minimum margins | |
163 * for the top and left edges of the paper, and the resulting width and height | |
164 * (offset by the resulting x and y) to determine the minimum margins for the | |
165 * bottom and right edges of the paper, as follows: | |
166 * <ul> | |
167 * <li>The left trim width is -x pixels</li> | |
168 * <li>The top trim height is -y pixels</li> | |
169 * <li>The right trim width is (x + width) pixels</li> | |
170 * <li>The bottom trim height is (y + height) pixels</li> | |
171 * </ul> | |
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172 * </p> |
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173 * |
45 | 174 * @param x the x coordinate of the client area |
175 * @param y the y coordinate of the client area | |
176 * @param width the width of the client area | |
177 * @param height the height of the client area | |
178 * @return a rectangle, relative to the client area's coordinates, that is | |
179 * the client area expanded by the printer's trim (or minimum margins) | |
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180 * |
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181 * @exception DWTException <ul> |
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182 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
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183 * </ul> |
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184 * |
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185 * @see #getBounds |
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186 * @see #getClientArea |
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187 */ |
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188 public Rectangle computeTrim(int x, int y, int width, int height) { |
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189 checkDevice(); |
45 | 190 NSSize paperSize = printInfo.paperSize(); |
191 NSRect bounds = printInfo.imageablePageBounds(); | |
192 Point dpi = getDPI (), screenDPI = getIndependentDPI(); | |
193 x -= (bounds.x * dpi.x / screenDPI.x); | |
194 y -= (bounds.y * dpi.y / screenDPI.y); | |
195 width += (paperSize.width - bounds.width) * dpi.x / screenDPI.x; | |
196 height += (paperSize.height - bounds.height) * dpi.y / screenDPI.y; | |
197 return new Rectangle(x, y, width, height); | |
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198 } |
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199 |
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200 /** |
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201 * Creates the printer handle. |
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202 * This method is called internally by the instance creation |
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203 * mechanism of the <code>Device</code> class. |
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204 * @param deviceData the device data |
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205 */ |
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206 protected void create(DeviceData deviceData) { |
120 | 207 data = cast(PrinterData)deviceData; |
45 | 208 if (data.otherData !is null) { |
120 | 209 NSData nsData = NSData.dataWithBytes(data.otherData.ptr, data.otherData.length); |
45 | 210 printInfo = new NSPrintInfo(NSKeyedUnarchiver.unarchiveObjectWithData(nsData).id); |
211 } else { | |
212 printInfo = NSPrintInfo.sharedPrintInfo(); | |
213 } | |
214 printInfo.retain(); | |
215 printer = NSPrinter.printerWithName(NSString.stringWith(data.name)); | |
216 if (printer !is null) { | |
217 printer.retain(); | |
218 printInfo.setPrinter(printer); | |
219 } | |
220 /* | |
221 * Bug in Cocoa. For some reason, the output still goes to the printer when | |
222 * the user chooses the preview button. The fix is to reset the job disposition. | |
223 */ | |
224 NSString job = printInfo.jobDisposition(); | |
120 | 225 if (job.isEqual(new NSString(OS.NSPrintPreviewJob_))) { |
45 | 226 printInfo.setJobDisposition(job); |
227 } | |
46
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228 NSRect rect = NSRect(); |
120 | 229 window = cast(NSWindow)(new NSWindow()).alloc(); |
45 | 230 window.initWithContentRect(rect, OS.NSBorderlessWindowMask, OS.NSBackingStoreBuffered, false); |
120 | 231 view = cast(NSView)(new NSView()).alloc(); |
45 | 232 view.initWithFrame(rect); |
233 window.setContentView(view); | |
234 operation = NSPrintOperation.printOperationWithView(view, printInfo); | |
235 operation.retain(); | |
236 operation.setShowsPrintPanel(false); | |
237 operation.setShowsProgressPanel(false); | |
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238 } |
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239 |
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240 /** |
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241 * Destroys the printer handle. |
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242 * This method is called internally by the dispose |
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243 * mechanism of the <code>Device</code> class. |
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244 */ |
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245 protected void destroy() { |
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246 if (printer !is null) printer.release(); |
45 | 247 if (printInfo !is null) printInfo.release(); |
248 if (view !is null) view.release(); | |
249 if (window !is null) window.release(); | |
250 if (operation !is null) operation.release(); | |
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251 printer = null; |
45 | 252 printInfo = null; |
253 view = null; | |
254 operation = null; | |
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255 } |
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256 |
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257 /** |
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258 * Invokes platform specific functionality to allocate a new GC handle. |
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259 * <p> |
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260 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
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261 * API for <code>Printer</code>. It is marked public only so that it |
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262 * can be shared within the packages provided by DWT. It is not |
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263 * available on all platforms, and should never be called from |
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264 * application code. |
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265 * </p> |
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266 * |
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267 * @param data the platform specific GC data |
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268 * @return the platform specific GC handle |
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269 */ |
120 | 270 public objc.id internal_new_GC(GCData data) { |
0
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271 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); |
45 | 272 if (data !is null) { |
273 if (isGCCreated) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
274 data.device = this; | |
275 data.background = getSystemColor(DWT.COLOR_WHITE).handle; | |
276 data.foreground = getSystemColor(DWT.COLOR_BLACK).handle; | |
277 data.font = getSystemFont (); | |
120 | 278 data.sizeStruct = printInfo.paperSize(); |
279 data.size = &data.sizeStruct; | |
45 | 280 isGCCreated = true; |
281 } | |
282 return operation.context().id; | |
0
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283 } |
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284 |
120 | 285 protected void init_ () { |
286 super.init_(); | |
0
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287 } |
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288 |
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289 /** |
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290 * Invokes platform specific functionality to dispose a GC handle. |
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291 * <p> |
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292 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
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293 * API for <code>Printer</code>. It is marked public only so that it |
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294 * can be shared within the packages provided by DWT. It is not |
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295 * available on all platforms, and should never be called from |
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296 * application code. |
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297 * </p> |
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298 * |
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299 * @param hDC the platform specific GC handle |
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300 * @param data the platform specific GC data |
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301 */ |
120 | 302 public void internal_dispose_GC(objc.id context, GCData data) { |
0
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303 if (data !is null) isGCCreated = false; |
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304 } |
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305 |
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306 /** |
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307 * Releases any internal state prior to destroying this printer. |
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308 * This method is called internally by the dispose |
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309 * mechanism of the <code>Device</code> class. |
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310 */ |
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311 protected void release () { |
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312 super.release(); |
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313 } |
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314 |
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315 /** |
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316 * Starts a print job and returns true if the job started successfully |
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317 * and false otherwise. |
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318 * <p> |
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319 * This must be the first method called to initiate a print job, |
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320 * followed by any number of startPage/endPage calls, followed by |
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321 * endJob. Calling startPage, endPage, or endJob before startJob |
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322 * will result in undefined behavior. |
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323 * </p> |
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324 * |
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325 * @param jobName the name of the print job to start |
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326 * @return true if the job started successfully and false otherwise. |
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327 * |
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328 * @exception DWTException <ul> |
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329 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
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330 * </ul> |
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331 * |
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332 * @see #startPage |
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333 * @see #endPage |
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334 * @see #endJob |
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335 */ |
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336 public bool startJob(String jobName) { |
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337 checkDevice(); |
45 | 338 if (jobName !is null && jobName.length() !is 0) { |
339 operation.setJobTitle(NSString.stringWith(jobName)); | |
340 } | |
341 printInfo.setUpPrintOperationDefaultValues(); | |
342 NSPrintOperation.setCurrentOperation(operation); | |
343 NSGraphicsContext context = operation.createContext(); | |
344 if (context !is null) { | |
345 view.beginDocument(); | |
346 return true; | |
347 } | |
0
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348 return false; |
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349 } |
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350 |
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351 /** |
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352 * Ends the current print job. |
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353 * |
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354 * @exception DWTException <ul> |
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355 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
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356 * </ul> |
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357 * |
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358 * @see #startJob |
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359 * @see #startPage |
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360 * @see #endPage |
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361 */ |
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362 public void endJob() { |
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363 checkDevice(); |
45 | 364 view.endDocument(); |
365 operation.deliverResult(); | |
366 operation.destroyContext(); | |
367 operation.cleanUpOperation(); | |
0
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368 } |
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369 |
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370 /** |
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371 * Cancels a print job in progress. |
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372 * |
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373 * @exception DWTException <ul> |
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374 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
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375 * </ul> |
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376 */ |
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377 public void cancelJob() { |
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378 checkDevice(); |
45 | 379 operation.destroyContext(); |
380 operation.cleanUpOperation(); | |
0
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381 } |
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382 |
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383 static DeviceData checkNull (PrinterData data) { |
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384 if (data is null) data = new PrinterData(); |
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385 if (data.driver is null || data.name is null) { |
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386 PrinterData defaultPrinter = getDefaultPrinterData(); |
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387 if (defaultPrinter is null) DWT.error(DWT.ERROR_NO_HANDLES); |
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388 data.driver = defaultPrinter.driver; |
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389 data.name = defaultPrinter.name; |
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390 } |
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391 return data; |
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392 } |
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393 |
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394 /** |
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395 * Starts a page and returns true if the page started successfully |
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396 * and false otherwise. |
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397 * <p> |
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398 * After calling startJob, this method may be called any number of times |
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399 * along with a matching endPage. |
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400 * </p> |
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401 * |
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402 * @return true if the page started successfully and false otherwise. |
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403 * |
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404 * @exception DWTException <ul> |
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405 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
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406 * </ul> |
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407 * |
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408 * @see #endPage |
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409 * @see #startJob |
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410 * @see #endJob |
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411 */ |
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412 public bool startPage() { |
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413 checkDevice(); |
45 | 414 NSSize paperSize = printInfo.paperSize(); |
46
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415 NSRect rect = NSRect(); |
45 | 416 rect.width = paperSize.width; |
417 rect.height = paperSize.height; | |
46
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418 view.beginPageInRect(rect, NSPoint()); |
45 | 419 NSRect imageBounds = printInfo.imageablePageBounds(); |
420 NSBezierPath.bezierPathWithRect(imageBounds).setClip(); | |
421 NSAffineTransform transform = NSAffineTransform.transform(); | |
422 transform.translateXBy(imageBounds.x, rect.height - imageBounds.y); | |
423 transform.scaleXBy(1, -1); | |
424 Point dpi = getDPI (), screenDPI = getIndependentDPI(); | |
120 | 425 transform.scaleXBy(screenDPI.x / cast(Carbon.CGFloat)dpi.x, screenDPI.y / cast(Carbon.CGFloat)dpi.y); |
45 | 426 transform.concat(); |
427 return true; | |
0
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428 } |
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429 |
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430 /** |
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431 * Ends the current page. |
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432 * |
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433 * @exception DWTException <ul> |
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434 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
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435 * </ul> |
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436 * |
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437 * @see #startPage |
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438 * @see #startJob |
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439 * @see #endJob |
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440 */ |
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441 public void endPage() { |
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442 checkDevice(); |
45 | 443 view.endPage(); |
0
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444 } |
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445 |
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446 /** |
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447 * Returns a point whose x coordinate is the horizontal |
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448 * dots per inch of the printer, and whose y coordinate |
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449 * is the vertical dots per inch of the printer. |
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450 * |
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451 * @return the horizontal and vertical DPI |
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452 * |
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453 * @exception DWTException <ul> |
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454 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
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455 * </ul> |
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456 */ |
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457 public Point getDPI() { |
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458 checkDevice(); |
45 | 459 //TODO get output resolution |
460 return getIndependentDPI(); | |
461 } | |
462 | |
463 Point getIndependentDPI() { | |
464 return super.getDPI(); | |
0
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465 } |
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466 |
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467 /** |
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468 * Returns a rectangle describing the receiver's size and location. |
45 | 469 * <p> |
470 * For a printer, this is the size of the physical page, in pixels. | |
471 * </p> | |
0
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472 * |
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473 * @return the bounding rectangle |
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474 * |
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475 * @exception DWTException <ul> |
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476 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
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477 * </ul> |
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478 * |
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479 * @see #getClientArea |
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480 * @see #computeTrim |
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481 */ |
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482 public Rectangle getBounds() { |
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483 checkDevice(); |
45 | 484 NSSize size = printInfo.paperSize(); |
485 Point dpi = getDPI (), screenDPI = getIndependentDPI(); | |
120 | 486 return new Rectangle (0, 0, cast(int)(size.width * dpi.x / screenDPI.x), cast(int)(size.height * dpi.y / screenDPI.y)); |
0
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487 } |
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488 |
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489 /** |
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490 * Returns a rectangle which describes the area of the |
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491 * receiver which is capable of displaying data. |
45 | 492 * <p> |
0
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493 * For a printer, this is the size of the printable area |
45 | 494 * of the page, in pixels. |
495 * </p> | |
0
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496 * |
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497 * @return the client area |
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498 * |
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499 * @exception DWTException <ul> |
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500 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> |
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501 * </ul> |
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502 * |
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503 * @see #getBounds |
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504 * @see #computeTrim |
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505 */ |
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506 public Rectangle getClientArea() { |
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507 checkDevice(); |
45 | 508 NSRect rect = printInfo.imageablePageBounds(); |
509 Point dpi = getDPI (), screenDPI = getIndependentDPI(); | |
120 | 510 return new Rectangle(0, 0, cast(int)(rect.width * dpi.x / screenDPI.x), cast(int)(rect.height * dpi.y / screenDPI.y)); |
0
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511 } |
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512 |
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513 /** |
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514 * Returns a <code>PrinterData</code> object representing the |
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515 * target printer for this print job. |
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516 * |
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517 * @return a PrinterData object describing the receiver |
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518 */ |
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519 public PrinterData getPrinterData() { |
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520 checkDevice(); |
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521 return data; |
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522 } |
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523 } |