1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.mappaint;
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3 |
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4 | import org.openstreetmap.josm.spi.preferences.Config;
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5 | import org.openstreetmap.josm.tools.Logging;
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6 |
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7 | /**
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8 | * Setting to customize a MapPaint style.
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9 | *
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10 | * Can be changed by the user in the right click menu of the mappaint style
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11 | * dialog.
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12 | *
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13 | * Defined in the MapCSS style, e.g.
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14 | * <pre>
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15 | * setting::highway_casing {
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16 | * type: boolean;
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17 | * label: tr("Draw highway casing");
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18 | * default: true;
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19 | * }
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20 | *
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21 | * way[highway][setting("highway_casing")] {
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22 | * casing-width: 2;
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23 | * casing-color: white;
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24 | * }
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25 | * </pre>
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26 | */
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27 | public interface StyleSetting {
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28 |
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29 | /**
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30 | * gets the value for this setting
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31 | * @return The value the user selected
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32 | */
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33 | Object getValue();
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34 |
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35 | /**
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36 | * A style setting for boolean value (yes / no).
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37 | */
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38 | class BooleanStyleSetting implements StyleSetting {
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39 | public final StyleSource parentStyle;
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40 | public final String prefKey;
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41 | public final String label;
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42 | public final boolean def;
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43 |
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44 | public BooleanStyleSetting(StyleSource parentStyle, String prefKey, String label, boolean def) {
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45 | this.parentStyle = parentStyle;
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46 | this.prefKey = prefKey;
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47 | this.label = label;
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48 | this.def = def;
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49 | }
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50 |
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51 | public static BooleanStyleSetting create(Cascade c, StyleSource parentStyle, String key) {
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52 | String label = c.get("label", null, String.class);
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53 | if (label == null) {
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54 | Logging.warn("property 'label' required for boolean style setting");
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55 | return null;
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56 | }
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57 | Boolean def = c.get("default", null, Boolean.class);
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58 | if (def == null) {
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59 | Logging.warn("property 'default' required for boolean style setting");
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60 | return null;
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61 | }
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62 | String prefKey = parentStyle.url + ":boolean:" + key;
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63 | return new BooleanStyleSetting(parentStyle, prefKey, label, def);
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64 | }
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65 |
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66 | @Override
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67 | public Object getValue() {
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68 | String val = Config.getPref().get(prefKey, null);
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69 | if (val == null) return def;
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70 | return Boolean.valueOf(val);
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71 | }
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72 |
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73 | public void setValue(Object o) {
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74 | if (!(o instanceof Boolean)) {
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75 | throw new IllegalArgumentException();
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76 | }
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77 | boolean b = (Boolean) o;
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78 | if (b == def) {
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79 | Config.getPref().put(prefKey, null);
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80 | } else {
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81 | Config.getPref().putBoolean(prefKey, b);
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82 | }
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83 | }
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84 | }
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85 | }
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