vars activity
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76bc626778
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6359e921d5
@ -16,11 +16,13 @@
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a:layout_width="match_parent"
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a:layout_height="match_parent">
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<TextView xmlns:a="http://schemas.android.com/apk/res/android"
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a:id="@+id/var_text"
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a:layout_width="fill_parent"
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a:layout_height="fill_parent">
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<TextView a:id="@+id/var_text"
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a:layout_width="match_parent"
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a:layout_height="match_parent"
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a:textSize="20dp"
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a:padding="5dp">
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</TextView>
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</LinearLayout>
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</LinearLayout>
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@ -16,11 +16,13 @@
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a:layout_width="match_parent"
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a:layout_height="match_parent">
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<TextView xmlns:a="http://schemas.android.com/apk/res/android"
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a:id="@+id/var_text"
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a:layout_width="fill_parent"
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a:layout_height="fill_parent">
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<TextView a:id="@+id/var_text"
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a:layout_width="match_parent"
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a:layout_height="match_parent"
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a:textSize="20dp"
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a:padding="5dp">
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</TextView>
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</LinearLayout>
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</LinearLayout>
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@ -21,7 +21,6 @@ import org.jetbrains.annotations.Nullable;
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import org.solovyev.android.view.FontSizeAdjuster;
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import org.solovyev.android.view.widgets.*;
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import org.solovyev.common.BooleanMapper;
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import org.solovyev.common.NumberMapper;
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import org.solovyev.common.utils.Announcer;
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import org.solovyev.common.utils.StringUtils;
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import org.solovyev.common.utils.history.HistoryAction;
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@ -57,7 +56,9 @@ public class CalculatorActivity extends Activity implements FontSizeAdjuster, Sh
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setContentView(R.layout.main);
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try {
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CalculatorModel.init(this);
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if (!CalculatorModel.isLoaded()) {
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CalculatorModel.init(this);
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}
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this.calculatorModel = CalculatorModel.getInstance();
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} catch (EvalError evalError) {
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// todo serso: create serso runtime exception
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@ -39,9 +39,7 @@ public class CalculatorModel {
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private static CalculatorModel instance;
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private CalculatorModel(@Nullable Context context) throws EvalError {
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if (context != null) {
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load(context);
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}
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load(context);
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interpreter = new Interpreter();
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interpreter.eval(ToJsclPreprocessor.wrap(JsclOperation.importCommands, "/jscl/editorengine/commands"));
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@ -49,11 +47,21 @@ public class CalculatorModel {
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public String evaluate(@NotNull JsclOperation operation, @NotNull String expression) throws EvalError, ParseException {
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final String preprocessedExpression = preprocessor.process(expression);
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final StringBuilder sb = new StringBuilder();
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/*
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for (Var var : varsRegister.getVars()) {
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if (!var.isSystem()) {
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sb.append(var.getName()).append("=").append(var.getValue()).append(";");
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}
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}
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*/
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sb.append(preprocessor.process(expression));
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//Log.d(CalculatorModel.class.getName(), "Preprocessed expression: " + preprocessedExpression);
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Object evaluationObject = interpreter.eval(ToJsclPreprocessor.wrap(operation, preprocessedExpression));
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Object evaluationObject = interpreter.eval(ToJsclPreprocessor.wrap(operation, sb.toString()));
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String result = String.valueOf(evaluationObject).trim();
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try {
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@ -112,11 +120,13 @@ public class CalculatorModel {
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return MathUtils.round(dResult, numberOfFractionDigits);
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}
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public synchronized void load(@NotNull Context context) {
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final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
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public synchronized void load(@Nullable Context context) {
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if (context != null) {
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final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
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final NumberMapper<Integer> integerNumberMapper = new NumberMapper<Integer>(Integer.class);
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this.setNumberOfFractionDigits(integerNumberMapper.parseValue(preferences.getString(context.getString(R.string.p_calc_result_precision_key), context.getString(R.string.p_calc_result_precision))));
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final NumberMapper<Integer> integerNumberMapper = new NumberMapper<Integer>(Integer.class);
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this.setNumberOfFractionDigits(integerNumberMapper.parseValue(preferences.getString(context.getString(R.string.p_calc_result_precision_key), context.getString(R.string.p_calc_result_precision))));
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}
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varsRegister.load(context);
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}
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@ -136,7 +146,7 @@ public class CalculatorModel {
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}
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public static synchronized void init(@Nullable Context context) throws EvalError {
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if ( instance == null ) {
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if (!isLoaded()) {
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instance = new CalculatorModel(context);
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} else {
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throw new RuntimeException("Calculator model already instantiated!");
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@ -144,13 +154,17 @@ public class CalculatorModel {
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}
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public static CalculatorModel getInstance() {
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if ( instance == null ) {
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if (!isLoaded()) {
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throw new RuntimeException("CalculatorModel must be instantiated!");
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}
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return instance;
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}
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public static boolean isLoaded() {
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return instance != null;
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}
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@NotNull
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public VarsRegister getVarsRegister() {
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return varsRegister;
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@ -7,12 +7,13 @@
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package org.solovyev.android.calculator;
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import android.app.ListActivity;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.AdapterView;
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import android.widget.ArrayAdapter;
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import android.widget.ListView;
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import android.view.ViewGroup;
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import android.widget.*;
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import org.solovyev.common.utils.StringUtils;
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import java.util.ArrayList;
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import java.util.List;
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@ -31,7 +32,7 @@ public class CalculatorVarsActivity extends ListActivity {
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setTheme(android.R.style.Theme_Dialog);
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final List<Var> vars = new ArrayList<Var>(CalculatorModel.getInstance().getVarsRegister().getVars());
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setListAdapter(new ArrayAdapter<Var>(this, R.layout.var, R.id.var_text, vars));
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setListAdapter(new VarsArrayAdapter(this, R.layout.var, R.id.var_text, vars));
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final ListView lv = getListView();
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lv.setTextFilterEnabled(true);
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@ -48,4 +49,30 @@ public class CalculatorVarsActivity extends ListActivity {
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});
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}
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private class VarsArrayAdapter extends ArrayAdapter<Var> {
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private VarsArrayAdapter(Context context, int resource, int textViewResourceId, List<Var> objects) {
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super(context, resource, textViewResourceId, objects);
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}
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public VarsArrayAdapter(Context context, int resource, List<Var> objects) {
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super(context, resource, objects);
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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final ViewGroup result = (ViewGroup)super.getView(position, convertView, parent);
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final Var var = getItem(position);
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if (!StringUtils.isEmpty(var.getDescription())) {
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final TextView description = new TextView(getContext());
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description.setText(var.getDescription());
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result.addView(description, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
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}
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return result;
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}
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}
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}
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@ -86,4 +86,21 @@ public class Var {
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public String toString() {
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return getName() + " = " + value;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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Var var = (Var) o;
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if (!name.equals(var.name)) return false;
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return true;
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}
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@Override
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public int hashCode() {
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return name.hashCode();
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}
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}
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@ -1,3 +1,9 @@
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/*
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* Copyright (c) 2009-2011. Created by serso aka se.solovyev.
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* For more information, please, contact se.solovyev@gmail.com
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* or visit http://se.solovyev.org
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*/
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package org.solovyev.android.calculator;
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import android.content.Context;
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@ -8,15 +14,11 @@ import org.jetbrains.annotations.Nullable;
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import org.simpleframework.xml.Serializer;
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import org.simpleframework.xml.core.Persister;
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import org.solovyev.android.calculator.math.MathEntityType;
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import org.solovyev.android.view.widgets.SimpleOnDragListener;
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import org.solovyev.common.utils.CollectionsUtils;
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import org.solovyev.common.utils.Finder;
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import java.io.StringWriter;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import java.util.*;
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/**
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* User: serso
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@ -26,19 +28,19 @@ import java.util.Set;
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public class VarsRegister {
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@NotNull
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private final Set<Var> vars = new HashSet<Var>();
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private final List<Var> vars = new ArrayList<Var>();
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@NotNull
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private final Set<Var> systemVars = new HashSet<Var>();
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private final List<Var> systemVars = new ArrayList<Var>();
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@NotNull
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public Set<Var> getVars() {
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return Collections.unmodifiableSet(vars);
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public List<Var> getVars() {
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return Collections.unmodifiableList(vars);
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}
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@NotNull
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public Set<Var> getSystemVars() {
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return Collections.unmodifiableSet(systemVars);
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public List<Var> getSystemVars() {
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return Collections.unmodifiableList(systemVars);
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}
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@Nullable
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@ -64,20 +66,34 @@ public class VarsRegister {
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vars.addAll(result);
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}
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public synchronized void load(@NotNull Context context) {
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final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
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public synchronized void load(@Nullable Context context) {
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this.vars.clear();
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this.systemVars.clear();
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final String value = preferences.getString(context.getString(R.string.p_calc_vars), null);
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if (value != null) {
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final Serializer serializer = new Persister();
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try {
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final Vars vars = serializer.read(Vars.class, value);
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this.vars.addAll(vars.getVars());
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} catch (Exception e) {
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throw new RuntimeException(e);
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Var t = new Var("T", 0d, false);
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t.setDescription("Some text description!");
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this.vars.add(t);
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Var t2 = new Var("T2", 2d, false);
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this.vars.add(t2);
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Var t1 = new Var("T1", 1d, false);
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t1.setDescription("Не так давно в рунете появились упоминания англоязычного проекта DearPhotograph.com. Сайт нас растрогал, зарядил идеей и вдохновением.");
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this.vars.add(t1);
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if (context != null) {
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final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
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final String value = preferences.getString(context.getString(R.string.p_calc_vars), null);
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if (value != null) {
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final Serializer serializer = new Persister();
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try {
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final Vars vars = serializer.read(Vars.class, value);
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this.vars.addAll(vars.getVars());
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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}
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@ -89,6 +105,11 @@ public class VarsRegister {
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vars.add(systemVar);
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}
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}
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/*Log.d(VarsRegister.class.getName(), vars.size() + " variables registered!");
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for (Var var : vars) {
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Log.d(VarsRegister.class.getName(), var.toString());
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}*/
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}
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public synchronized void save(@NotNull Context context) {
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@ -7,11 +7,11 @@ package org.solovyev.android.calculator.math;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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import org.solovyev.android.calculator.CalculatorModel;
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import org.solovyev.android.calculator.Var;
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import org.solovyev.common.utils.CollectionsUtils;
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import org.solovyev.common.utils.Finder;
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import java.lang.reflect.Array;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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@ -71,7 +71,9 @@ public enum MathEntityType {
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}
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if ( result == null ) {
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if ( prefixFunctions.contains(s) ) {
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if ( isConstant(s) ) {
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result = MathEntityType.constant;
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} else if ( prefixFunctions.contains(s) ) {
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result = MathEntityType.function;
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} else if ( groupSymbols.contains(s) ) {
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result = MathEntityType.group_symbols;
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@ -107,7 +109,11 @@ public enum MathEntityType {
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private static boolean isConstant(final char ch) {
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final String name = String.valueOf(ch);
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return CollectionsUtils.get(constants, new Finder<Var>() {
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return isConstant(name);
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}
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private static boolean isConstant(final String name) {
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return CollectionsUtils.get(CalculatorModel.getInstance().getVarsRegister().getVars(), new Finder<Var>() {
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@Override
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public boolean isFound(@Nullable Var var) {
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return var != null && var.getName().equals(name);
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