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annotate org.eclipse.draw2d/src/org/eclipse/draw2d/PrintFigureOperation.d @ 104:88652073d1c2
More work on icu
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 02 May 2009 11:27:24 +0200 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2005 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 |
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10 * Sven M�ller - Added tiling support |
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11 * Port to the D programming language: |
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12 * Frank Benoit <benoit@tionex.de> |
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13 *******************************************************************************/ |
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14 module org.eclipse.draw2d.PrintFigureOperation; |
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15 |
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16 import java.lang.all; |
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17 |
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18 |
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19 |
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20 import org.eclipse.swt.SWT; |
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21 import org.eclipse.swt.graphics.Color; |
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22 import org.eclipse.swt.printing.Printer; |
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23 import org.eclipse.swt.widgets.Display; |
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24 import org.eclipse.draw2d.geometry.Rectangle; |
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25 import org.eclipse.draw2d.IFigure; |
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26 import org.eclipse.draw2d.PrintOperation; |
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27 import org.eclipse.draw2d.Graphics; |
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28 import org.eclipse.draw2d.ColorConstants; |
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29 |
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30 /** |
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31 * Class responsible for printing Figures. |
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32 * |
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33 * @author Dan Lee |
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34 * @author Eric Bordeau |
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35 * @author Sven M�ller |
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36 */ |
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37 public class PrintFigureOperation : PrintOperation { |
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38 |
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39 /** |
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40 * The default print mode. Prints at 100% scale and tiles horizontally and/or vertically, |
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41 * if necessary. |
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42 */ |
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43 public static const int TILE = 1; |
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44 /** |
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45 * A print mode that scales the printer graphics so that the entire printed image fits on |
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46 * one page. |
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47 */ |
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48 public static const int FIT_PAGE = 2; |
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49 /** |
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50 * A print mode that scales the printer graphics so that the width of the printed image |
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51 * fits on one page and tiles vertically, if necessary. |
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52 */ |
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53 public static const int FIT_WIDTH = 3; |
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54 /** |
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55 * A print mode that scales the printer graphics so that the height of the printed image |
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56 * fits on one page and tiles horizontally, if necessary. |
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57 */ |
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58 public static const int FIT_HEIGHT = 4; |
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59 |
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60 private IFigure printSource; |
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61 private Color oldBGColor; |
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62 private int printMode = TILE; |
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63 |
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64 /** |
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65 * Constructor for PrintFigureOperation. |
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66 * <p> |
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67 * Note: Descendants must call setPrintSource(IFigure) to set the IFigure that is to be |
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68 * printed. |
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69 * @see org.eclipse.draw2d.PrintOperation#PrintOperation(Printer) |
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70 */ |
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71 protected this(Printer p) { |
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72 super(p); |
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73 } |
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74 |
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75 /** |
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76 * Constructor for PrintFigureOperation. |
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77 * |
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78 * @param p Printer to print on |
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79 * @param srcFigure Figure to print |
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80 */ |
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81 public this(Printer p, IFigure srcFigure) { |
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82 super(p); |
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83 setPrintSource(srcFigure); |
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84 } |
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85 |
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86 /** |
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87 * @return SWT.RIGHT_TO_LEFT if the print source is mirrored; SWT.LEFT_TO_RIGHT otherwise |
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88 * @see org.eclipse.draw2d.PrintOperation#getGraphicsOrientation() |
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89 */ |
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90 int getGraphicsOrientation() { |
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91 return getPrintSource().isMirrored() ? SWT.RIGHT_TO_LEFT : SWT.LEFT_TO_RIGHT; |
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92 } |
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93 |
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94 /** |
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95 * Returns the current print mode. The print mode is one of: {@link #FIT_HEIGHT}, |
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96 * {@link #FIT_PAGE}, or {@link #FIT_WIDTH}. |
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97 * @return the print mode |
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98 */ |
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99 protected int getPrintMode() { |
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100 return printMode; |
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101 } |
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102 |
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103 /** |
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104 * Returns the printSource. |
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105 * |
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106 * @return IFigure The source IFigure |
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107 */ |
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108 protected IFigure getPrintSource() { |
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109 return printSource; |
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110 } |
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111 |
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112 /** |
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113 * @see org.eclipse.draw2d.PrintOperation#preparePrintSource() |
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114 */ |
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115 protected void preparePrintSource() { |
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116 oldBGColor = getPrintSource().getLocalBackgroundColor(); |
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117 getPrintSource().setBackgroundColor(ColorConstants.white); |
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118 } |
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119 |
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120 /** |
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121 * Prints the pages based on the current print mode. |
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122 * @see org.eclipse.draw2d.PrintOperation#printPages() |
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123 */ |
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124 protected void printPages() { |
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125 Graphics graphics = getFreshPrinterGraphics(); |
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126 IFigure figure = getPrintSource(); |
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127 setupPrinterGraphicsFor(graphics, figure); |
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128 Rectangle bounds = figure.getBounds(); |
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129 int x = bounds.x, y = bounds.y; |
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130 Rectangle clipRect = new Rectangle(); |
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131 while (y < bounds.y + bounds.height) { |
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132 while (x < bounds.x + bounds.width) { |
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133 graphics.pushState(); |
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134 getPrinter().startPage(); |
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135 graphics.translate(-x, -y); |
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136 graphics.getClip(clipRect); |
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137 clipRect.setLocation(x, y); |
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138 graphics.clipRect(clipRect); |
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139 figure.paint(graphics); |
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140 getPrinter().endPage(); |
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141 graphics.popState(); |
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142 x += clipRect.width; |
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143 } |
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144 x = bounds.x; |
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145 y += clipRect.height; |
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146 } |
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147 } |
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148 |
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149 /** |
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150 * @see org.eclipse.draw2d.PrintOperation#restorePrintSource() |
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151 */ |
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152 protected void restorePrintSource() { |
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153 getPrintSource().setBackgroundColor(oldBGColor); |
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154 oldBGColor = null; |
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155 } |
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156 |
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157 /** |
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158 * Sets the print mode. Possible values are {@link #TILE}, {@link #FIT_HEIGHT}, |
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159 * {@link #FIT_WIDTH} and {@link #FIT_PAGE}. |
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160 * @param mode the print mode |
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161 */ |
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162 public void setPrintMode(int mode) { |
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163 printMode = mode; |
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164 } |
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165 |
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166 /** |
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167 * Sets the printSource. |
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168 * @param printSource The printSource to set |
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169 */ |
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170 protected void setPrintSource(IFigure printSource) { |
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171 this.printSource = printSource; |
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172 } |
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173 |
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174 /** |
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175 * Sets up Graphics object for the given IFigure. |
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176 * @param graphics The Graphics to setup |
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177 * @param figure The IFigure used to setup graphics |
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178 */ |
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179 protected void setupPrinterGraphicsFor(Graphics graphics, IFigure figure) { |
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180 double dpiScale = cast(double)getPrinter().getDPI().x / Display.getCurrent().getDPI().x; |
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181 |
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182 Rectangle printRegion = getPrintRegion(); |
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183 // put the print region in display coordinates |
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184 printRegion.width /= dpiScale; |
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185 printRegion.height /= dpiScale; |
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186 |
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187 Rectangle bounds = figure.getBounds(); |
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188 double xScale = cast(double)printRegion.width / bounds.width; |
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189 double yScale = cast(double)printRegion.height / bounds.height; |
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190 switch (getPrintMode()) { |
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191 case FIT_PAGE: |
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192 graphics.scale(Math.min(xScale, yScale) * dpiScale); |
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193 break; |
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194 case FIT_WIDTH: |
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195 graphics.scale(xScale * dpiScale); |
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196 break; |
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197 case FIT_HEIGHT: |
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198 graphics.scale(yScale * dpiScale); |
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199 break; |
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200 default: |
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201 graphics.scale(dpiScale); |
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202 } |
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203 graphics.setForegroundColor(figure.getForegroundColor()); |
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204 graphics.setBackgroundColor(figure.getBackgroundColor()); |
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205 graphics.setFont(figure.getFont()); |
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206 } |
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207 |
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208 } |