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android-calculatorpp-71 Plot problem

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This commit is contained in:
Sergey Solovyev
2012-04-21 15:44:05 +04:00
parent 39de2cbf8f
commit 3f2cf60d6f
4 changed files with 29 additions and 10 deletions
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2
calculatorpp/src/main/java/org/solovyev/android/calculator/model/CalculatorEngine.java
View File

@@ -101,7 +101,7 @@ public enum CalculatorEngine {
private MathEngine engine = JsclMathEngine.instance;
@NotNull
public final TextProcessor<PreparedExpression, String> preprocessor = new ToJsclTextProcessor();
public final TextProcessor<PreparedExpression, String> preprocessor = ToJsclTextProcessor.getInstance();
@NotNull
private final AndroidMathRegistry<IConstant> varsRegistry = new AndroidVarsRegistryImpl(engine.getConstantsRegistry());

16
calculatorpp/src/main/java/org/solovyev/android/calculator/model/ToJsclTextProcessor.java
View File

@@ -15,12 +15,24 @@ import org.solovyev.common.utils.CollectionsUtils;
import java.util.ArrayList;
import java.util.List;
class ToJsclTextProcessor implements TextProcessor<PreparedExpression, String> {
public class ToJsclTextProcessor implements TextProcessor<PreparedExpression, String> {
@NotNull
private static final Integer MAX_DEPTH = 20;
@Override
@NotNull
private static final TextProcessor<PreparedExpression, String> instance = new ToJsclTextProcessor();
private ToJsclTextProcessor() {
}
@NotNull
public static TextProcessor<PreparedExpression, String> getInstance() {
return instance;
}
@Override
@NotNull
public PreparedExpression process(@NotNull String s) throws CalculatorParseException {
return processWithDepth(s, 0, new ArrayList<IConstant>());

13
calculatorpp/src/main/java/org/solovyev/android/calculator/plot/CalculatorPlotActivity.java
View File

@@ -35,6 +35,9 @@ import org.achartengine.tools.ZoomListener;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.solovyev.android.calculator.R;
import org.solovyev.android.calculator.model.CalculatorParseException;
import org.solovyev.android.calculator.model.PreparedExpression;
import org.solovyev.android.calculator.model.ToJsclTextProcessor;
import org.solovyev.common.utils.MutableObject;
import java.io.Serializable;
@@ -79,7 +82,8 @@ public class CalculatorPlotActivity extends Activity {
final Input input = (Input) extras.getSerializable(INPUT);
try {
this.expression = Expression.valueOf(input.getExpression());
final PreparedExpression preparedExpression = ToJsclTextProcessor.getInstance().process(input.getExpression());
this.expression = Expression.valueOf(preparedExpression.getExpression());
this.variable = new Constant(input.getVariableName());
String title = extras.getString(ChartFactory.TITLE);
@@ -100,8 +104,11 @@ public class CalculatorPlotActivity extends Activity {
} catch (ArithmeticException e) {
Toast.makeText(this, e.getLocalizedMessage(), Toast.LENGTH_LONG).show();
finish();
}
}
} catch (CalculatorParseException e) {
Toast.makeText(this, e.getLocalizedMessage(), Toast.LENGTH_LONG).show();
finish();
}
}
private void setGraphicalView(@Nullable PlotBoundaries plotBoundaries) {
double minValue = plotBoundaries == null ? DEFAULT_MIN_NUMBER : plotBoundaries.xMin;