Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/utils/ThemeUtil.java @ 1745:4ae7df2a74ed

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Fix NPE in WDiff-diagram because no ranges present in masterartifact. flys-artifacts/trunk@3039 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 19 Oct 2011 16:06:01 +0000
parents 6cdc7a77d3d4
children d56b94325bec
rev   line source
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9324839684a4 New theme-related utilities.
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parents:
diff changeset
1 package de.intevation.flys.utils;
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2
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3 import org.apache.log4j.Logger;
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4
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5 import java.awt.Color;
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6 import java.awt.Font;
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7
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8 import org.w3c.dom.Document;
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9
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10 import de.intevation.artifacts.common.utils.XMLUtils;
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11
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12
9324839684a4 New theme-related utilities.
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13 /**
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14 * Utility to deal with themes and their representations.
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15 */
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16 public class ThemeUtil {
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17
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18 private static Logger logger =
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19 Logger.getLogger(ThemeUtil.class);
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20
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f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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21 public final static String XPATH_LINE_COLOR =
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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22 "/theme/field[@name='linecolor']/@default";
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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23
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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24 public static final String XPATH_LINE_SIZE =
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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25 "/theme/field[@name='linesize']/@default";
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26
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27 public final static String XPATH_TEXT_COLOR =
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28 "/theme/field[@name='textcolor']/@default";
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29
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30 public final static String XPATH_TEXT_SIZE =
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31 "/theme/field[@name='textsize']/@default";
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32
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33 public final static String XPATH_TEXT_FONT =
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34 "/theme/field[@name='font']/@default";
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35
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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36 /**
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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37 * Parses line width, defaulting to 0.
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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38 * @param theme the theme
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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39 */
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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40 public static int parseLineWidth(Document theme) {
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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41 String size = XMLUtils.xpathString(theme, XPATH_LINE_SIZE, null);
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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42 if (size == null || size.length() == 0) {
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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43 return 0;
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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44 }
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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45
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1090
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46 try {
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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47 return Integer.valueOf(size);
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48 }
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49 catch (NumberFormatException nfe) {
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50 //logger.warn("Unable to set line size from string: '" + size + "'");
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51 }
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52 return 0;
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53 }
f708120cb7bc Fix flys/issue363 (W-INFO/ Abflusskurve, Extremwert-Rendering).
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54
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55
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56 /**
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57 * Parses text size, defaulting to 10.
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58 * @param theme The theme.
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59 */
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60 public static int parseTextSize(Document theme) {
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61 String size = XMLUtils.xpathString(theme, XPATH_TEXT_SIZE, null);
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62 if (size == null || size.length() == 0) {
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63 return 10;
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64 }
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65
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66 try {
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67 return Integer.valueOf(size);
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68 }
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69 catch (NumberFormatException nfe) {
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70 }
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71 return 10;
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72 }
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73
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74
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75 /**
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76 * Parses text color.
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77 * @param theme The theme.
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78 */
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79 public static Color parseTextColor(Document theme) {
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80 String color = XMLUtils.xpathString(theme, XPATH_TEXT_COLOR, null);
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81 return parseRGB(color);
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82 }
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83
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84
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85 /**
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86 * Parses the font.
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87 * @param theme The theme.
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88 */
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89 public static Font parseTextFont(Document theme) {
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90 String font = XMLUtils.xpathString(theme, XPATH_TEXT_FONT, null);
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91 if (font == null || font.length() == 0) {
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92 return null;
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93 }
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94
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95 int size = parseTextSize(theme);
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96 Font f = new Font (font, 0, size);
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97 return f;
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98 }
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99
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100
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101 /**
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102 * Parse a string like "103, 100, 0" and return a corresping color.
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103 * @param rgbtext Color as string representation, e.g. "255,0,20".
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104 * @return Color, null in case of issues.
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105 */
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106 public static Color parseRGB(String rgbtext) {
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107 logger.debug("parseColor: " + rgbtext);
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108 if (rgbtext == null) {
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109 return null;
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110 }
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111 String rgb[] = rgbtext.split(",");
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112 Color c = null;
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113 try {
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114 c = new Color(
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115 Integer.valueOf(rgb[0].trim()),
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116 Integer.valueOf(rgb[1].trim()),
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117 Integer.valueOf(rgb[2].trim()));
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118 }
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119 catch (NumberFormatException nfe) {
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120 c = null;
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121 }
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122 return c;
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123 }
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124
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125 /**
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126 * Gets color from color field.
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127 * @param theme the theme document.
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128 * @return color.
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129 */
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130 public static Color parseLineColorField(Document theme) {
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131 String color = XMLUtils.xpathString(theme, XPATH_LINE_COLOR, null);
9324839684a4 New theme-related utilities.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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132 return parseRGB(color);
9324839684a4 New theme-related utilities.
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133 }
9324839684a4 New theme-related utilities.
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134 }
http://dive4elements.wald.intevation.org