Calculator Onscreen

calculatorpp/AndroidManifest.xml

@@ -55,7 +55,7 @@
 
 		<activity android:launchMode="singleInstance"
 				  android:label="@string/c_app_name_on_screen"
-				  android:name=".CalculatorOnScreenStartActivity">
+				  android:name=".CalculatorOnscreenStartActivity">
 
 			<intent-filter>
 				<action android:name="android.intent.action.MAIN"/>
@@ -66,15 +66,17 @@
 
         <service android:name=".onscreen.CalculatorOnscreenService">
             <intent-filter>
-                <action android:name="org.solovyev.calculator.widget.EDITOR_STATE_CHANGED"/>
+                <action android:name="org.solovyev.android.calculator.INIT"/>
-                <action android:name="org.solovyev.calculator.widget.DISPLAY_STATE_CHANGED"/>
+                <action android:name="org.solovyev.android.calculator.EDITOR_STATE_CHANGED"/>
+                <action android:name="org.solovyev.android.calculator.DISPLAY_STATE_CHANGED"/>
             </intent-filter>
         </service>
 
         <receiver android:name=".onscreen.CalculatorOnscreenBroadcastReceiver">
             <intent-filter>
-                <action android:name="org.solovyev.calculator.widget.EDITOR_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.INIT"/>
-                <action android:name="org.solovyev.calculator.widget.DISPLAY_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.EDITOR_STATE_CHANGED"/>
+                <action android:name="org.solovyev.android.calculator.DISPLAY_STATE_CHANGED"/>
             </intent-filter>
         </receiver>
 
@@ -84,9 +86,10 @@
 
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
-                <action android:name="org.solovyev.calculator.widget.EDITOR_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.INIT"/>
-                <action android:name="org.solovyev.calculator.widget.DISPLAY_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.EDITOR_STATE_CHANGED"/>
-                <action android:name="org.solovyev.calculator.widget.BUTTON_PRESSED"/>
+                <action android:name="org.solovyev.android.calculator.DISPLAY_STATE_CHANGED"/>
+                <action android:name="org.solovyev.android.calculator.widget.BUTTON_PRESSED"/>
 		</intent-filter>
 
             <meta-data android:name="android.appwidget.provider" android:resource="@xml/calculator_widget_info_3x3"/>
@@ -96,9 +99,10 @@
 
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
-                <action android:name="org.solovyev.calculator.widget.EDITOR_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.INIT"/>
-                <action android:name="org.solovyev.calculator.widget.DISPLAY_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.EDITOR_STATE_CHANGED"/>
-                <action android:name="org.solovyev.calculator.widget.BUTTON_PRESSED"/>
+                <action android:name="org.solovyev.android.calculator.DISPLAY_STATE_CHANGED"/>
+                <action android:name="org.solovyev.android.calculator.widget.BUTTON_PRESSED"/>
             </intent-filter>
 
             <meta-data android:name="android.appwidget.provider" android:resource="@xml/calculator_widget_info_3x4"/>
@@ -108,9 +112,10 @@
 
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
-                <action android:name="org.solovyev.calculator.widget.EDITOR_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.INIT"/>
-                <action android:name="org.solovyev.calculator.widget.DISPLAY_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.EDITOR_STATE_CHANGED"/>
-                <action android:name="org.solovyev.calculator.widget.BUTTON_PRESSED"/>
+                <action android:name="org.solovyev.android.calculator.DISPLAY_STATE_CHANGED"/>
+                <action android:name="org.solovyev.android.calculator.widget.BUTTON_PRESSED"/>
             </intent-filter>
 
             <meta-data android:name="android.appwidget.provider" android:resource="@xml/calculator_widget_info_4x4"/>
@@ -120,9 +125,10 @@
 
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
-                <action android:name="org.solovyev.calculator.widget.EDITOR_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.INIT"/>
-                <action android:name="org.solovyev.calculator.widget.DISPLAY_STATE_CHANGED"/>
+				<action android:name="org.solovyev.android.calculator.EDITOR_STATE_CHANGED"/>
-                <action android:name="org.solovyev.calculator.widget.BUTTON_PRESSED"/>
+                <action android:name="org.solovyev.android.calculator.DISPLAY_STATE_CHANGED"/>
+                <action android:name="org.solovyev.android.calculator.widget.BUTTON_PRESSED"/>
             </intent-filter>
 
             <meta-data android:name="android.appwidget.provider" android:resource="@xml/calculator_widget_info_4x5"/>

calculatorpp/res/layout/onscreen_display.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  ~ Copyright (c) 2009-2011. Created by serso aka se.solovyev.
+  ~ For more information, please, contact se.solovyev@gmail.com
+  ~ or visit http://se.solovyev.org
+  -->
+
+<org.solovyev.android.calculator.AndroidCalculatorDisplayView
+		xmlns:a="http://schemas.android.com/apk/res/android"
+		a:id="@+id/calculator_display"
+		style="@style/cpp_onscreen_display_style"
+		a:padding="@dimen/cpp_display_padding"
+		a:inputType="textMultiLine"
+		a:maxLines="3"
+		a:scrollHorizontally="false"
+		a:scrollbars="none"/>

calculatorpp/res/layout/onscreen_editor.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  ~ Copyright (c) 2009-2011. Created by serso aka se.solovyev.
+  ~ For more information, please, contact se.solovyev@gmail.com
+  ~ or visit http://se.solovyev.org
+  -->
+
+<LinearLayout xmlns:a="http://schemas.android.com/apk/res/android"
+			  a:id="@+id/main_fragment_layout"
+			  style="?cpp_fragment_layout_style"
+			  a:layout_width="match_parent"
+			  a:layout_height="match_parent"
+			  a:padding="@dimen/cpp_editor_padding">
+
+	<org.solovyev.android.calculator.AndroidCalculatorEditorView
+			a:id="@+id/calculator_editor"
+			style="@style/cpp_onscreen_editor_style"
+			a:textIsSelectable="true"
+			a:hint="@string/c_calc_editor_hint"/>
+
+</LinearLayout>

calculatorpp/res/layout/onscreen_header.xml

@@ -9,24 +9,28 @@
 				  a:layout_height="match_parent"
 				  a:layout_alignParentRight="true">
 
-        <Button a:id="@+id/onscreen_fold_button"
+        <ImageButton a:id="@+id/onscreen_fold_button"
             style="@style/onscreen_header_button_style"
-            a:text="_"/>
+            a:src="@drawable/cpp_onscreen_button_fold"/>
 
-		<Button a:id="@+id/onscreen_minimize_button"
+		<ImageButton a:id="@+id/onscreen_minimize_button"
 				style="@style/onscreen_header_button_style"
-				a:text="_"/>
+				a:src="@drawable/cpp_onscreen_button_minimize"/>
 
-		<Button a:id="@+id/onscreen_close_button"
+		<ImageButton a:id="@+id/onscreen_close_button"
 				style="@style/onscreen_header_button_style"
-				a:text="x"/>
+				a:src="@drawable/cpp_onscreen_button_close"/>
 
 	</LinearLayout>
 
-	<TextView a:id="@+id/onscreen_title"
+	<ImageView a:id="@+id/onscreen_title"
-			  a:text="@string/c_app_name"
 			   a:layout_width="match_parent"
 			   a:layout_height="match_parent"
+			   a:src="@drawable/cpp_onscreen_header_logo"
+			   a:scaleType="fitStart"
+			   a:paddingLeft="6dp"
+			   a:paddingTop="2dp"
+			   a:paddingBottom="2dp"
 			   a:layout_toLeftOf="@id/onscreen_header_buttons"/>
 
 </RelativeLayout>

calculatorpp/res/layout/onscreen_keyboard.xml

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout xmlns:a="http://schemas.android.com/apk/res/android"
+              a:layout_width="match_parent"
+              a:layout_height="match_parent"
+              a:orientation="vertical">
+
+    <LinearLayout a:layout_weight="1"
+                  a:layout_width="match_parent"
+                  a:layout_height="0dp">
+
+        <include layout="@layout/widget_seven_digit_button"/>
+        <include layout="@layout/widget_eight_digit_button"/>
+        <include layout="@layout/widget_nine_digit_button"/>
+        <include layout="@layout/widget_multiplication_button"/>
+		<include layout="@layout/widget_erase_button"/>
+
+    </LinearLayout>
+
+    <LinearLayout a:layout_weight="1"
+                  a:layout_width="match_parent"
+                  a:layout_height="0dp">
+
+        <include layout="@layout/widget_four_digit_button"/>
+        <include layout="@layout/widget_five_digit_button"/>
+        <include layout="@layout/widget_six_digit_button"/>
+        <include layout="@layout/widget_division_button"/>
+		<include layout="@layout/widget_percent_button"/>
+
+	</LinearLayout>
+
+    <LinearLayout a:layout_weight="1"
+                  a:layout_width="match_parent"
+                  a:layout_height="0dp">
+
+        <include layout="@layout/widget_one_digit_button"/>
+        <include layout="@layout/widget_two_digit_button"/>
+        <include layout="@layout/widget_three_digit_button"/>
+        <include layout="@layout/widget_plus_button"/>
+		<include layout="@layout/widget_power_button"/>
+    </LinearLayout>
+
+    <LinearLayout a:layout_weight="1"
+                  a:layout_width="match_parent"
+                  a:layout_height="0dp">
+
+        <include layout="@layout/widget_round_brackets_button"/>
+        <include layout="@layout/widget_zero_digit_button"/>
+        <include layout="@layout/widget_dot_button"/>
+        <include layout="@layout/widget_subtraction_button"/>
+		<include layout="@layout/widget_app_button"/>
+
+	</LinearLayout>
+
+
+<!--    <LinearLayout a:layout_weight="1"
+                  a:layout_width="match_parent"
+                  a:layout_height="0dp">
+
+        <include layout="@layout/widget_left_button"/>
+        <include layout="@layout/widget_right_button"/>
+        <include layout="@layout/widget_vars_button"/>
+        <include layout="@layout/widget_functions_button"/>
+        <include layout="@layout/widget_app_button"/>
+        <include layout="@layout/widget_history_button"/>
+
+    </LinearLayout>-->
+
+</LinearLayout>

calculatorpp/res/layout/onscreen_layout.xml

@@ -4,17 +4,16 @@
 			  a:orientation="vertical"
 			  style="@style/cpp_widget_main_layout_style">
 
-	<include layout="@layout/onscreen_header"/>
+	<include a:id="@+id/onscreen_header" layout="@layout/onscreen_header"/>
 
 	<LinearLayout a:id="@+id/onscreen_content"
 				  a:orientation="vertical"
 				  a:layout_width="match_parent"
 				  a:layout_height="match_parent">
 
-		<include layout="@layout/widget_editor"
+		<include layout="@layout/onscreen_editor"
-				 a:layout_weight="2"
 				 a:layout_width="match_parent"
-				 a:layout_height="0dp"/>
+				 a:layout_height="wrap_content"/>
 
 		<LinearLayout a:layout_weight="1"
 					  a:layout_width="match_parent"
@@ -26,15 +25,15 @@
 					 a:layout_width="0dp"
 					 a:layout_height="match_parent"/>
 
-			<include layout="@layout/widget_display"
+			<include layout="@layout/onscreen_display"
-					 a:layout_weight="5"
+					 a:layout_weight="4"
 					 a:layout_width="0dp"
 					 a:layout_height="wrap_content"/>
 
 		</LinearLayout>
 
-		<include layout="@layout/widget_keyboard"
+		<include layout="@layout/onscreen_keyboard"
-				 a:layout_weight="5"
+				 a:layout_weight="4"
 				 a:layout_width="match_parent"
 				 a:layout_height="0dp"/>
 	</LinearLayout>

calculatorpp/res/values/dimens.xml

@@ -25,6 +25,7 @@
     <dimen name="cpp_widget_display_text_size">25sp</dimen>
     <dimen name="cpp_widget_margin">6dp</dimen>
 
+	<dimen name="cpp_onscreen_display_text_size">20sp</dimen>
 	<dimen name="cpp_onscreen_header_button_text_size">10dp</dimen>
 
     <!--only for not multipane-->

calculatorpp/res/values/styles.xml

@@ -44,6 +44,12 @@
         <item name="android:textColor">@color/cpp_button_text_color</item>
     </style>
 
+    <style name="cpp_onscreen_editor_style" parent="cpp_editor_style">
+		<item name="android:ellipsize">none</item>
+		<item name="android:singleLine">true</item>
+		<item name="android:scrollbars">horizontal</item>
+	</style>
+
     <style name="cpp_editor_style" parent="cpp_default_text">
         <item name="android:gravity">left|top</item>
         <item name="android:layout_width">fill_parent</item>
@@ -66,6 +72,10 @@
         <item name="android:textSize">@dimen/cpp_widget_editor_text_size</item>
     </style>
 
+    <style name="cpp_onscreen_display_style" parent="cpp_display_style">
+		<item name="android:textSize">@dimen/cpp_onscreen_display_text_size</item>
+	</style>
+
     <style name="cpp_widget_display_style" parent="cpp_display_style">
         <item name="android:textSize">@dimen/cpp_widget_display_text_size</item>
     </style>

calculatorpp/src/main/java/org/solovyev/android/calculator/AndroidCalculatorDisplayView.java

@@ -169,14 +169,21 @@ public class AndroidCalculatorDisplayView extends AutoResizeTextView implements
     }
 
     public synchronized void init(@NotNull Context context) {
+		this.init(context, true);
+    }
+
+	public synchronized void init(@NotNull Context context, boolean fromApp) {
 		if (!initialized) {
+			if (fromApp) {
 				final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
 				final CalculatorPreferences.Gui.Layout layout = CalculatorPreferences.Gui.getLayout(preferences);
+
 				if ( layout == CalculatorPreferences.Gui.Layout.main_calculator_mobile ) {
 					setTextSize(TypedValue.COMPLEX_UNIT_SP, getResources().getDimension(R.dimen.cpp_display_text_size_mobile));
 				}
 
 				this.setOnClickListener(new CalculatorDisplayOnClickListener(context));
+			}
 
 			this.initialized = true;
 		}

calculatorpp/src/main/java/org/solovyev/android/calculator/CalculatorOnScreenStartActivity.java

@@ -3,15 +3,18 @@ package org.solovyev.android.calculator;
 import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
+import org.solovyev.android.calculator.external.AndroidExternalListenersContainer;
 import org.solovyev.android.calculator.onscreen.CalculatorOnscreenService;
 
-public class CalculatorOnScreenStartActivity extends Activity {
+public class CalculatorOnscreenStartActivity extends Activity {
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 
-		startService(new Intent(this, CalculatorOnscreenService.class));
+		final Intent intent = new Intent(AndroidExternalListenersContainer.INIT_ACTION);
+		intent.setClass(this, CalculatorOnscreenService.class);
+		startService(intent);
 
 		this.finish();
 	}

calculatorpp/src/main/java/org/solovyev/android/calculator/CalculatorOnscreenStartActivity.java

@@ -0,0 +1,21 @@
+package org.solovyev.android.calculator;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import org.solovyev.android.calculator.external.AndroidExternalListenersContainer;
+import org.solovyev.android.calculator.onscreen.CalculatorOnscreenService;
+
+public class CalculatorOnscreenStartActivity extends Activity {
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+
+		final Intent intent = new Intent(AndroidExternalListenersContainer.INIT_ACTION);
+		intent.setClass(this, CalculatorOnscreenService.class);
+		startService(intent);
+
+		this.finish();
+	}
+}

calculatorpp/src/main/java/org/solovyev/android/calculator/external/AndroidExternalListenersContainer.java

@@ -39,9 +39,13 @@ public class AndroidExternalListenersContainer implements CalculatorExternalList
     */
 
     public static final String EVENT_ID_EXTRA = "eventId";
-    public static final String EDITOR_STATE_CHANGED_ACTION = "org.solovyev.calculator.widget.EDITOR_STATE_CHANGED";
+
+	public static final String INIT_ACTION = "org.solovyev.android.calculator.INIT";
+
+	public static final String EDITOR_STATE_CHANGED_ACTION = "org.solovyev.android.calculator.EDITOR_STATE_CHANGED";
     public static final String EDITOR_STATE_EXTRA = "editorState";
-    public static final String DISPLAY_STATE_CHANGED_ACTION = "org.solovyev.calculator.widget.DISPLAY_STATE_CHANGED";
+
+	public static final String DISPLAY_STATE_CHANGED_ACTION = "org.solovyev.android.calculator.DISPLAY_STATE_CHANGED";
     public static final String DISPLAY_STATE_EXTRA = "displayState";
 
     private static final String TAG = "Calculator++ External Listener Helper";

calculatorpp/src/main/java/org/solovyev/android/calculator/external/DefaultExternalCalculatorIntentHandler.java

@@ -4,9 +4,9 @@ import android.content.Context;
 import android.content.Intent;
 import android.os.Parcelable;
 import org.jetbrains.annotations.NotNull;
-import org.solovyev.android.calculator.Locator;
 import org.solovyev.android.calculator.CalculatorDisplayViewState;
 import org.solovyev.android.calculator.CalculatorEditorViewState;
+import org.solovyev.android.calculator.Locator;
 import org.solovyev.common.MutableObject;
 
 /**
@@ -71,6 +71,8 @@ public class DefaultExternalCalculatorIntentHandler implements ExternalCalculato
                     onDisplayStateChanged(context, (CalculatorDisplayViewState) object);
                 }
             }
+        } else if ( AndroidExternalListenersContainer.INIT_ACTION.equals(intent.getAction()) ) {
+			updateState(context, Locator.getInstance().getEditor().getViewState(), Locator.getInstance().getDisplay().getViewState());
 		}
     }
 

calculatorpp/src/main/java/org/solovyev/android/calculator/onscreen/CalculatorOnscreenService.java

@@ -16,6 +16,7 @@ import org.solovyev.android.calculator.CalculatorDisplayViewState;
 import org.solovyev.android.calculator.CalculatorEditorViewState;
 import org.solovyev.android.calculator.Locator;
 import org.solovyev.android.calculator.R;
+import org.solovyev.android.calculator.external.AndroidExternalListenersContainer;
 import org.solovyev.android.calculator.external.DefaultExternalCalculatorIntentHandler;
 import org.solovyev.android.calculator.external.ExternalCalculatorIntentHandler;
 import org.solovyev.android.calculator.external.ExternalCalculatorStateUpdater;
@@ -38,6 +39,8 @@ public class CalculatorOnscreenService extends Service implements ExternalCalcul
     @NotNull
     private CalculatorOnscreenView view;
 
+	private boolean compatibilityStart = true;
+
     @Override
     public IBinder onBind(Intent intent) {
         return null;
@@ -51,14 +54,15 @@ public class CalculatorOnscreenService extends Service implements ExternalCalcul
 
         final DisplayMetrics dm = getResources().getDisplayMetrics();
 
-        final int displayWidth0 = 2 * wm.getDefaultDisplay().getWidth() / 3;
+        int twoThirdWidth = 2 * wm.getDefaultDisplay().getWidth() / 3;
-        final int displayHeight0 = 2 * wm.getDefaultDisplay().getHeight() / 3;
+        int twoThirdHeight = 2 * wm.getDefaultDisplay().getHeight() / 3;
 
-        final int displayWidth = Math.min(displayWidth0, displayHeight0);
+		twoThirdWidth = Math.min(twoThirdWidth, twoThirdHeight);
-        final int displayHeight = Math.max(displayWidth0, displayHeight0);
+		twoThirdHeight = Math.max(twoThirdWidth, getHeight(twoThirdWidth));
 
-        final int width0 = Math.min(displayWidth, AndroidUtils.toPixels(dm, 300));
+		final int baseWidth = AndroidUtils.toPixels(dm, 300);
-        final int height0 = Math.min(displayHeight, AndroidUtils.toPixels(dm, 450));
+		final int width0 = Math.min(twoThirdWidth, baseWidth);
+        final int height0 = Math.min(twoThirdHeight, getHeight(baseWidth));
 
         final int width = Math.min(width0, height0);
         final int height = Math.max(width0, height0);
@@ -69,6 +73,10 @@ public class CalculatorOnscreenService extends Service implements ExternalCalcul
         startCalculatorListening();
     }
 
+	private int getHeight(int width) {
+		return 4 * width / 3;
+	}
+
 	private void startCalculatorListening() {
         Locator.getInstance().getExternalListenersContainer().addExternalListener(getIntentListenerClass());
     }
@@ -106,20 +114,32 @@ public class CalculatorOnscreenService extends Service implements ExternalCalcul
     @Override
     public void onStart(Intent intent, int startId) {
         super.onStart(intent, startId);
+
+		if (this.compatibilityStart) {
+			handleStart(intent);
+		}
 	}
 
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
-        int result = super.onStartCommand(intent, flags, startId);
 
+		final int result;
+		try {
+			this.compatibilityStart = false;
+			result = super.onStartCommand(intent, flags, startId);
+			handleStart(intent);
+		} finally {
+			this.compatibilityStart = true;
+		}
+
+		return result;
+    }
+
+	private void handleStart(@Nullable Intent intent) {
 		if ( intent != null ) {
 			intentHandler.onIntent(this, intent);
 		}
-
 		hideNotification();
-
-
-        return result;
 	}
 
 	private void hideNotification() {
@@ -144,7 +164,7 @@ public class CalculatorOnscreenService extends Service implements ExternalCalcul
         builder.setContentTitle(getText(R.string.c_app_name));
         builder.setContentText(getString(R.string.open_onscreen_calculator));
 
-        final Intent intent = new Intent();
+        final Intent intent = new Intent(AndroidExternalListenersContainer.INIT_ACTION);
         intent.setClass(this, getIntentListenerClass());
         builder.setContentIntent(PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT));
 

calculatorpp/src/main/java/org/solovyev/android/calculator/onscreen/CalculatorOnscreenView.java

@@ -2,13 +2,14 @@ package org.solovyev.android.calculator.onscreen;
 
 import android.content.Context;
 import android.graphics.PixelFormat;
-import android.text.Html;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.WindowManager;
-import android.widget.TextView;
+import android.widget.ImageView;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
+import org.solovyev.android.calculator.AndroidCalculatorDisplayView;
+import org.solovyev.android.calculator.AndroidCalculatorEditorView;
 import org.solovyev.android.calculator.CalculatorDisplayViewState;
 import org.solovyev.android.calculator.CalculatorEditorViewState;
 import org.solovyev.android.calculator.R;
@@ -44,6 +45,15 @@ public class CalculatorOnscreenView {
     @NotNull
     private View content;
 
+	@NotNull
+	private View header;
+
+	@NotNull
+	private AndroidCalculatorEditorView editorView;
+
+	@NotNull
+	private AndroidCalculatorDisplayView displayView;
+
 	@NotNull
     private Context context;
 
@@ -115,33 +125,12 @@ public class CalculatorOnscreenView {
 
     public void updateDisplayState(@NotNull CalculatorDisplayViewState displayState) {
         checkInit();
-
+		displayView.setState(displayState);
-        final TextView calculatorDisplayView = (TextView) root.findViewById(R.id.calculator_display);
-        if (calculatorDisplayView != null) {
-            if (displayState.isValid()) {
-                calculatorDisplayView.setText(displayState.getText());
-                calculatorDisplayView.setTextColor(context.getResources().getColor(R.color.cpp_default_text_color));
-            } else {
-                calculatorDisplayView.setTextColor(context.getResources().getColor(R.color.cpp_display_error_text_color));
-            }
-        }
     }
 
     public void updateEditorState(@NotNull CalculatorEditorViewState editorState) {
         checkInit();
-        final TextView calculatorEditorView = (TextView) root.findViewById(R.id.calculator_editor);
+		editorView.setState(editorState);
-
-        if (calculatorEditorView != null) {
-            String text = editorState.getText();
-
-            CharSequence newText = text;
-            int selection = editorState.getSelection();
-            if (selection >= 0 && selection <= text.length()) {
-                // inject cursor
-                newText = Html.fromHtml(text.substring(0, selection) + "<font color=\"#" + cursorColor + "\">|</font>" + text.substring(selection));
-            }
-            calculatorEditorView.setText(newText);
-        }
     }
 
     private void setHeight(int height) {
@@ -176,13 +165,27 @@ public class CalculatorOnscreenView {
                             widgetButton.onClick(context);
                         }
                     });
+                    button.setOnLongClickListener(new View.OnLongClickListener() {
+						@Override
+						public boolean onLongClick(View v) {
+							widgetButton.onLongClick(context);
+							return true;
+						}
+					});
                 }
             }
 
             final WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
 
+			header = root.findViewById(R.id.onscreen_header);
             content = root.findViewById(R.id.onscreen_content);
 
+			displayView = (AndroidCalculatorDisplayView) root.findViewById(R.id.calculator_display);
+			displayView.init(this.context, false);
+
+			editorView = (AndroidCalculatorEditorView) root.findViewById(R.id.calculator_editor);
+			editorView.init(this.context);
+
             final View onscreenFoldButton = root.findViewById(R.id.onscreen_fold_button);
             onscreenFoldButton.setOnClickListener(new View.OnClickListener() {
                 @Override
@@ -210,8 +213,8 @@ public class CalculatorOnscreenView {
                 }
             });
 
-            final TextView onscreenTitleTextView = (TextView) root.findViewById(R.id.onscreen_title);
+            final ImageView onscreenTitleImageView = (ImageView) root.findViewById(R.id.onscreen_title);
-            onscreenTitleTextView.setOnTouchListener(new WindowDragTouchListener(wm, root));
+            onscreenTitleImageView.setOnTouchListener(new WindowDragTouchListener(wm, root));
 
             initialized = true;
         }
@@ -254,7 +257,7 @@ public class CalculatorOnscreenView {
         if (!folded) {
             final WindowManager.LayoutParams params = (WindowManager.LayoutParams) root.getLayoutParams();
             unfoldedHeight = params.height;
-            int newHeight = root.findViewById(R.id.onscreen_close_button).getHeight();
+            int newHeight = header.getHeight();
             content.setVisibility(View.GONE);
             setHeight(newHeight);
             folded = true;

calculatorpp/src/main/java/org/solovyev/android/calculator/widget/AbstractCalculatorWidgetProvider.java

@@ -26,7 +26,7 @@ import org.solovyev.android.calculator.external.ExternalCalculatorStateUpdater;
 abstract class AbstractCalculatorWidgetProvider extends AppWidgetProvider implements ExternalCalculatorStateUpdater {
 
     static final String BUTTON_ID_EXTRA = "buttonId";
-    static final String BUTTON_PRESSED_ACTION = "org.solovyev.calculator.widget.BUTTON_PRESSED";
+    static final String BUTTON_PRESSED_ACTION = "org.solovyev.android.calculator.widget.BUTTON_PRESSED";
 
     private static final String TAG = "Calculator++ Widget";
 

calculatorpp/src/main/java/org/solovyev/android/calculator/widget/WidgetButton.java

@@ -53,7 +53,7 @@ public enum WidgetButton {
 
     /*last column*/
     clear(R.id.clearButton, CalculatorSpecialButton.clear),
-    erase(R.id.eraseButton, CalculatorSpecialButton.erase),
+    erase(R.id.eraseButton, CalculatorSpecialButton.erase, CalculatorSpecialButton.clear),
     copy(R.id.copyButton, CalculatorSpecialButton.copy),
     paste(R.id.pasteButton, CalculatorSpecialButton.paste),
 
@@ -64,23 +64,43 @@ public enum WidgetButton {
     private final int buttonId;
 
     @NotNull
-    private final String text;
+    private final String onClickText;
+
+	@Nullable
+	private final String onLongClickText;
 
     @NotNull
     private static Map<Integer, WidgetButton> buttonsByIds = new HashMap<Integer, WidgetButton>();
 
-    WidgetButton(int buttonId, @NotNull CalculatorSpecialButton button) {
+    WidgetButton(int buttonId, @NotNull CalculatorSpecialButton onClickButton, @Nullable CalculatorSpecialButton onLongClickButton) {
-        this(buttonId, button.getActionCode());
+		this(buttonId, onClickButton.getActionCode(), onLongClickButton == null ? null : onLongClickButton.getActionCode());
 	}
 
-    WidgetButton(int buttonId, @NotNull String text) {
+    WidgetButton(int buttonId, @NotNull CalculatorSpecialButton onClickButton) {
+        this(buttonId, onClickButton, null);
+    }
+
+    WidgetButton(int buttonId, @NotNull String onClickText, @Nullable String onLongClickText) {
 		this.buttonId = buttonId;
-        this.text = text;
+		this.onClickText = onClickText;
+		this.onLongClickText = onLongClickText;
+
+	}
+
+    WidgetButton(int buttonId, @NotNull String onClickText) {
+        this(buttonId, onClickText, null);
+    }
+
+    public void onLongClick(@NotNull Context context) {
+		Locator.getInstance().getNotifier().showDebugMessage("Calculator++ Widget", "Button pressed: " + onLongClickText);
+		if (onLongClickText != null) {
+			Locator.getInstance().getKeyboard().buttonPressed(onLongClickText);
+		}
 	}
 
     public void onClick(@NotNull Context context) {
-        Locator.getInstance().getNotifier().showDebugMessage("Calculator++ Widget", "Button pressed: " + text);
+        Locator.getInstance().getNotifier().showDebugMessage("Calculator++ Widget", "Button pressed: " + onClickText);
-        Locator.getInstance().getKeyboard().buttonPressed(text);
+        Locator.getInstance().getKeyboard().buttonPressed(onClickText);
     }
 
     @Nullable