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authorSteffen Pingel2012-02-11 13:41:58 +0000
committerSteffen Pingel2012-02-11 13:41:58 +0000
commitfa6a5fb9967a08f54e5800a1b239c03bfb4850ba (patch)
treedcbc5b4518cc80209932a12944612dd29519d863 /org.eclipse.mylyn.tasks.core
parenta7f0e7fc780376a7ec5b21dd4a8a15d2ca015090 (diff)
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NEW - bug 371010: [api] provide abstracted priority mapping
https://bugs.eclipse.org/bugs/show_bug.cgi?id=371010 Change-Id: I858678eac8c4803811553e18e65775244f61c78c
Diffstat (limited to 'org.eclipse.mylyn.tasks.core')
-rw-r--r--org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/tasks/core/ITask.java47
1 files changed, 47 insertions, 0 deletions
diff --git a/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/tasks/core/ITask.java b/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/tasks/core/ITask.java
index f3d77eacd..6cf012962 100644
--- a/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/tasks/core/ITask.java
+++ b/org.eclipse.mylyn.tasks.core/src/org/eclipse/mylyn/tasks/core/ITask.java
@@ -13,6 +13,7 @@ package org.eclipse.mylyn.tasks.core;
import java.util.Date;
+import org.eclipse.core.runtime.Assert;
import org.eclipse.mylyn.internal.tasks.core.Messages;
/**
@@ -72,11 +73,29 @@ public interface ITask extends IRepositoryElement, IAttributeContainer {
}
/**
+ * Defines an interface for priorities that have an associated integer value.
+ *
+ * @author Steffen Pingel
+ * @since 3.7
+ * @see PriorityLevel#fromValue(IPriorityValue[], IPriorityValue)
+ */
+ public static interface IPriorityValue {
+
+ /**
+ * Returns the integer value of this priority.
+ */
+ int getPriorityValue();
+
+ }
+
+ /**
* @since 3.0
*/
public enum PriorityLevel {
P1, P2, P3, P4, P5;
+ private static final int LEVEL_COUNT = PriorityLevel.values().length;
+
@Override
public String toString() {
switch (this) {
@@ -185,6 +204,34 @@ public interface ITask extends IRepositoryElement, IAttributeContainer {
}
/**
+ * Maps a priority value to a {@link PriorityLevel}. The value needs to be present in <code>priorities</code>,
+ * otherwise {@link PriorityLevel#getDefault()} is returned.
+ * <p>
+ * NOTE: <code>priorities</code> needs to be sorted in ascending order.
+ *
+ * @param priorities
+ * a sorted array of priority levels
+ * @param value
+ * the value to map
+ * @since 3.7
+ */
+ public static PriorityLevel fromValue(IPriorityValue[] priorities, IPriorityValue value) {
+ Assert.isNotNull(priorities);
+ if (value != null) {
+ int minValue = priorities[0].getPriorityValue();
+ int range = priorities[priorities.length - 1].getPriorityValue() - minValue;
+ for (IPriorityValue priority : priorities) {
+ if (value.equals(priority)) {
+ float relativeValue = (float) (priority.getPriorityValue() - minValue) / range;
+ int level = (int) (relativeValue * LEVEL_COUNT) + 1;
+ return PriorityLevel.fromLevel(level);
+ }
+ }
+ }
+ return PriorityLevel.getDefault();
+ }
+
+ /**
* @since 3.0
*/
public static PriorityLevel getDefault() {

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