X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=android-libraries%2Fachartengine%2Fsrc%2Forg%2Fachartengine%2Ftools%2FAbstractTool.java;fp=android-libraries%2Fachartengine%2Fsrc%2Forg%2Fachartengine%2Ftools%2FAbstractTool.java;h=99841ed70e5d743437cd06ff9e15e7f478cdc60f;hb=dfe153139b917cc91dddc1efa0298d4204616462;hp=0000000000000000000000000000000000000000;hpb=a2fe0ba2c348102bb0c6486b201be097523c2c9a;p=debian%2Fopenrocket

diff --git a/android-libraries/achartengine/src/org/achartengine/tools/AbstractTool.java b/android-libraries/achartengine/src/org/achartengine/tools/AbstractTool.java
new file mode 100644
index 00000000..99841ed7
--- /dev/null
+++ b/android-libraries/achartengine/src/org/achartengine/tools/AbstractTool.java
@@ -0,0 +1,111 @@
+/**
+ * Copyright (C) 2009 - 2012 SC 4ViewSoft SRL
+ *  
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *  
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *  
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.achartengine.tools;
+
+import org.achartengine.chart.AbstractChart;
+import org.achartengine.chart.XYChart;
+import org.achartengine.renderer.XYMultipleSeriesRenderer;
+
+/**
+ * Abstract class for being extended by graphical view tools.
+ */
+public abstract class AbstractTool {
+  /** The chart. */
+  protected AbstractChart mChart;
+  /** The renderer. */
+  protected XYMultipleSeriesRenderer mRenderer;
+
+  /**
+   * Abstract tool constructor.
+   * 
+   * @param chart the chart
+   */
+  public AbstractTool(AbstractChart chart) {
+    mChart = chart;
+    if (chart instanceof XYChart) {
+      mRenderer = ((XYChart) chart).getRenderer();
+    }
+  }
+
+  /**
+   * Returns the current chart range.
+   * 
+   * @param scale the scale
+   * @return the chart range
+   */
+  public double[] getRange(int scale) {
+    double minX = mRenderer.getXAxisMin(scale);
+    double maxX = mRenderer.getXAxisMax(scale);
+    double minY = mRenderer.getYAxisMin(scale);
+    double maxY = mRenderer.getYAxisMax(scale);
+    return new double[] { minX, maxX, minY, maxY };
+  }
+
+  /**
+   * Sets the range to the calculated one, if not already set.
+   * 
+   * @param range the range
+   * @param scale the scale
+   */
+  public void checkRange(double[] range, int scale) {
+    if (mChart instanceof XYChart) {
+      double[] calcRange = ((XYChart) mChart).getCalcRange(scale);
+      if (calcRange != null) {
+        if (!mRenderer.isMinXSet(scale)) {
+          range[0] = calcRange[0];
+          mRenderer.setXAxisMin(range[0], scale);
+        }
+        if (!mRenderer.isMaxXSet(scale)) {
+          range[1] = calcRange[1];
+          mRenderer.setXAxisMax(range[1], scale);
+        }
+        if (!mRenderer.isMinYSet(scale)) {
+          range[2] = calcRange[2];
+          mRenderer.setYAxisMin(range[2], scale);
+        }
+        if (!mRenderer.isMaxYSet(scale)) {
+          range[3] = calcRange[3];
+          mRenderer.setYAxisMax(range[3], scale);
+        }
+      }
+    }
+  }
+
+  /**
+   * Sets a new range on the X axis.
+   * 
+   * @param min the minimum value
+   * @param max the maximum value
+   * @param scale the scale
+   */
+  protected void setXRange(double min, double max, int scale) {
+    mRenderer.setXAxisMin(min, scale);
+    mRenderer.setXAxisMax(max, scale);
+  }
+
+  /**
+   * Sets a new range on the Y axis.
+   * 
+   * @param min the minimum value
+   * @param max the maximum value
+   * @param scale the scale
+   */
+  protected void setYRange(double min, double max, int scale) {
+    mRenderer.setYAxisMin(min, scale);
+    mRenderer.setYAxisMax(max, scale);
+  }
+
+}