start ThemeBuilder api
This commit is contained in:
Hannes Janetzek
parent
494e553ac0
commit
b879830045
125
vtm/src/org/oscim/theme/ThemeBuilder.java
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125
vtm/src/org/oscim/theme/ThemeBuilder.java
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package org.oscim.theme;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Stack;
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import org.oscim.core.GeometryBuffer.GeometryType;
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import org.oscim.core.Tag;
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import org.oscim.core.TagSet;
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import org.oscim.theme.rule.Element;
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import org.oscim.theme.rule.Rule;
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import org.oscim.theme.rule.RuleBuilder;
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import org.oscim.theme.rule.Selector;
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import org.oscim.theme.rule.SingleKeyMatcher;
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import org.oscim.theme.rule.SingleValueMatcher;
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import org.oscim.theme.styles.Area;
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import org.oscim.theme.styles.Line;
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import org.oscim.theme.styles.RenderStyle;
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public class ThemeBuilder {
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protected final ArrayList<RuleBuilder> mRulesList = new ArrayList<RuleBuilder>();
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protected final Stack<RuleBuilder> mRuleStack = new Stack<RuleBuilder>();
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protected int mLevels = 0;
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protected int mMapBackground = 0xffffffff;
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protected float mBaseTextSize = 1;
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protected RuleBuilder mCurrentRule;
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protected RenderTheme build() {
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Rule[] rules = new Rule[mRulesList.size()];
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for (int i = 0, n = rules.length; i < n; i++)
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rules[i] = mRulesList.get(i).onComplete();
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RenderTheme theme = new RenderTheme(mMapBackground, mBaseTextSize, rules, mLevels);
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mRulesList.clear();
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mRuleStack.clear();
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return theme;
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}
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public ThemeBuilder pop() {
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mRuleStack.pop();
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if (mRuleStack.empty()) {
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mRulesList.add(mCurrentRule);
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} else {
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mCurrentRule = mRuleStack.peek();
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}
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return this;
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}
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public ThemeBuilder push(RuleBuilder rule) {
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if (!mRuleStack.empty())
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mCurrentRule.addSubRule(rule);
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mCurrentRule = rule;
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mRuleStack.push(mCurrentRule);
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return this;
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}
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public ThemeBuilder push(String key, String value) {
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RuleBuilder b = new RuleBuilder(true, Element.ANY, ~0, 0,
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key == null ? null : new SingleKeyMatcher(key),
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value == null ? null : new SingleValueMatcher(value));
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push(b);
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return this;
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}
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public RuleBuilder pushParse(String keys, String values) {
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return RuleBuilder.create(mRuleStack, keys, values)
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.zoom(~0)
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.element(Element.ANY);
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}
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public ThemeBuilder addStyle(RenderStyle style) {
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mCurrentRule.addStyle(style);
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return this;
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}
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public static void main(String[] args) {
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ThemeBuilder b = new ThemeBuilder();
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//b.pushParse("highway", "residential|primary|motorway")
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b.push(RuleBuilder.get().select(Selector.FIRST))
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.push("highway", null)
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.addStyle(new Line(1, 1, 1))
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.pop()
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.push(RuleBuilder.get().select(Selector.WHEN_MATCHED))
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.addStyle(new Area(1, 1))
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.pop()
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.pop();
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RenderTheme t = b.build();
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TagSet tags = new TagSet(1);
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RenderStyle[] styles;
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tags.add(new Tag("ahighway", "residential"));
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styles = t.matchElement(GeometryType.LINE, tags, 1);
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System.out.println(Arrays.deepToString(styles));
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// tags.clear();
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// tags.add(new Tag("highway", "motorway"));
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// styles = t.matchElement(GeometryType.LINE, tags, 1);
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// out.println(styles);
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//
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// tags.clear();
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// tags.add(new Tag("sup", "wup"));
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// styles = t.matchElement(GeometryType.LINE, tags, 1);
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// out.println(styles);
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//
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// tags.clear();
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// tags.add(new Tag("highway", "motorway"));
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// styles = t.matchElement(GeometryType.LINE, tags, 1);
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// out.println(styles);
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}
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}
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@ -863,13 +863,13 @@ public class XmlThemeBuilder extends DefaultHandler {
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return new Extrusion(level, colorSide, colorTop, colorLine, defaultHeight);
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}
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private static void validateNonNegative(String name, float value) {
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public static void validateNonNegative(String name, float value) {
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if (value < 0)
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throw new ThemeException(name + " must not be negative: "
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+ value);
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}
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private static void validateExists(String name, Object obj, String elementName) {
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public static void validateExists(String name, Object obj, String elementName) {
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if (obj == null)
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throw new ThemeException("missing attribute " + name
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+ " for element: " + elementName);
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@ -47,13 +47,13 @@ public class RuleBuilder {
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this.valueMatcher = valueMatcher;
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}
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private static RuleBuilder createRule(Stack<RuleBuilder> ruleStack, int element, String keys,
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String values, byte zoomMin, byte zoomMax, int selector) {
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public RuleBuilder(boolean positive, AttributeMatcher keyMatcher, AttributeMatcher valueMatcher) {
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this.positiveRule = positive;
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this.keyMatcher = keyMatcher;
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this.valueMatcher = valueMatcher;
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}
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// zoom-level bitmask
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int zoom = 0;
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for (int z = zoomMin; z <= zoomMax && z < 32; z++)
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zoom |= (1 << z);
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public static RuleBuilder create(Stack<RuleBuilder> ruleStack, String keys, String values) {
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List<String> keyList = null, valueList = null;
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boolean negativeRule = false;
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@ -90,16 +90,16 @@ public class RuleBuilder {
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if (negativeRule) {
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AttributeMatcher m = new NegativeMatcher(keyList, valueList, false);
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return new RuleBuilder(false, element, zoom, selector, m, null);
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return new RuleBuilder(false, m, null);
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} else if (exclusionRule) {
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AttributeMatcher m = new NegativeMatcher(keyList, valueList, true);
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return new RuleBuilder(false, element, zoom, selector, m, null);
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return new RuleBuilder(false, m, null);
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}
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keyMatcher = RuleOptimizer.optimize(keyMatcher, ruleStack);
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}
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return new RuleBuilder(true, element, zoom, selector, keyMatcher, valueMatcher);
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return new RuleBuilder(true, keyMatcher, valueMatcher);
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}
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private static AttributeMatcher getKeyMatcher(List<String> keyList) {
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@ -137,11 +137,9 @@ public class RuleBuilder {
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}
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private static void validate(byte zoomMin, byte zoomMax) {
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if (zoomMin < 0)
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throw new ThemeException("zoom-min must not be negative: " + zoomMin);
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else if (zoomMax < 0)
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throw new ThemeException("zoom-max must not be negative: " + zoomMax);
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else if (zoomMin > zoomMax)
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XmlThemeBuilder.validateNonNegative("zoom-min", zoomMin);
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XmlThemeBuilder.validateNonNegative("zoom-max", zoomMax);
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if (zoomMin > zoomMax)
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throw new ThemeException("zoom-min must be less or equal zoom-max: " + zoomMin);
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}
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@ -196,7 +194,20 @@ public class RuleBuilder {
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validate(zoomMin, zoomMax);
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return createRule(ruleStack, element, keys, values, zoomMin, zoomMax, selector);
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RuleBuilder b = create(ruleStack, keys, values);
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b.setZoom(zoomMin, zoomMax);
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b.element = element;
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b.selector = selector;
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return b;
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}
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public RuleBuilder setZoom(byte zoomMin, byte zoomMax) {
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// zoom-level bitmask
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zoom = 0;
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for (int z = zoomMin; z <= zoomMax && z < 32; z++)
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zoom |= (1 << z);
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return this;
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}
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public Rule onComplete() {
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@ -233,4 +244,28 @@ public class RuleBuilder {
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subRules.add(rule);
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}
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RuleBuilder(boolean positive) {
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this.positiveRule = positive;
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this.element = Element.ANY;
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this.zoom = ~0;
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}
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public static RuleBuilder get() {
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return new RuleBuilder(true);
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}
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public RuleBuilder select(int selector) {
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this.selector = selector;
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return this;
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}
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public RuleBuilder zoom(int zoom) {
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this.zoom = zoom;
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return this;
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}
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public RuleBuilder element(int element) {
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this.element = element;
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return this;
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}
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}
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@ -19,10 +19,10 @@ package org.oscim.theme.rule;
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import org.oscim.core.Tag;
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class SingleKeyMatcher implements AttributeMatcher {
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public class SingleKeyMatcher implements AttributeMatcher {
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private final String mKey;
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SingleKeyMatcher(String key) {
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public SingleKeyMatcher(String key) {
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mKey = key.intern();
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}
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@ -19,10 +19,10 @@ package org.oscim.theme.rule;
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import org.oscim.core.Tag;
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class SingleValueMatcher implements AttributeMatcher {
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public class SingleValueMatcher implements AttributeMatcher {
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private final String mValue;
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SingleValueMatcher(String value) {
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public SingleValueMatcher(String value) {
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mValue = value.intern();
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}
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