DroidFish: Optional second title line with captured piece information and time control information. Implemented by Leo Mayer, with some changes by me.

DroidFish/res/layout-land/main.xml

@@ -15,6 +15,11 @@
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
         android:paddingLeft="1dp">
+        <include
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            layout="@layout/title">
+        </include>
         <LinearLayout
             android:orientation="horizontal"
             android:layout_width="fill_parent"

DroidFish/res/layout/main.xml

@@ -3,6 +3,11 @@
     android:orientation="vertical"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent">
+    <include
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        layout="@layout/title">
+    </include>
     <view
         class="org.petero.droidfish.ChessBoardPlay"
         android:id="@+id/chessboard"

DroidFish/res/layout/main_left_handed.xml

@@ -10,6 +10,11 @@
         android:layout_weight="1"
         android:layout_width="0dip"
         android:layout_height="fill_parent">
+        <include
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            layout="@layout/title">
+        </include>
         <LinearLayout
             android:orientation="horizontal"
             android:layout_width="fill_parent"

DroidFish/res/layout/title.xml

@@ -1,32 +1,101 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
     android:layout_width="fill_parent"
-    android:layout_height="wrap_content"
+    android:layout_height="fill_parent"
-    android:layout_gravity="center_vertical">
+    android:layout_gravity="center_vertical"
-    <TextView
+    android:background="@android:drawable/title_bar">
-        style="?android:attr/windowTitleStyle"
+    <LinearLayout
-        android:id="@+id/white_clock"
+        xmlns:android="http://schemas.android.com/apk/res/android"
-        android:layout_weight="1"
+        android:orientation="horizontal"
         android:layout_width="fill_parent"
-        android:gravity="left"
+        android:layout_height="wrap_content"
-        android:layout_height="wrap_content">
+        android:layout_gravity="center_vertical">
-    </TextView>
+        <TextView
-    <TextView
+            android:id="@+id/white_clock"
-        style="?android:attr/windowTitleStyle"
+            style="?android:attr/windowTitleStyle"
-        android:id="@+id/title_text"
+            android:layout_width="fill_parent"
-        android:layout_weight="1"
+            android:layout_height="wrap_content"
-        android:text="@string/app_name"
+            android:layout_weight="1"
+            android:ellipsize="marquee"
+            android:focusable="true"
+            android:focusableInTouchMode="true"
+            android:gravity="left|center_vertical"
+            android:marqueeRepeatLimit="marquee_forever"
+            android:scrollHorizontally="true"
+            android:singleLine="true">
+        </TextView>
+        <TextView
+            android:id="@+id/title_text"
+            style="?android:attr/windowTitleStyle"
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:gravity="center|center_vertical"
+            android:text="@string/app_name">
+        </TextView>
+        <TextView
+            android:id="@+id/black_clock"
+            style="?android:attr/windowTitleStyle"
+            android:layout_width="fill_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:ellipsize="marquee"
+            android:focusable="true"
+            android:focusableInTouchMode="true"
+            android:gravity="right|center_vertical"
+            android:marqueeRepeatLimit="marquee_forever"
+            android:scrollHorizontally="true"
+            android:singleLine="true">
+        </TextView>
+    </LinearLayout>
+    <LinearLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/second_title_line"
+        android:orientation="horizontal"
         android:layout_width="fill_parent"
-        android:gravity="center"
+        android:layout_height="wrap_content"
-        android:layout_height="wrap_content">
+        android:layout_gravity="center_vertical">
-    </TextView>
+        <TextView
-    <TextView
+            android:id="@+id/white_pieces"
-        style="?android:attr/windowTitleStyle"
+            style="?android:attr/windowTitleStyle"
-        android:id="@+id/black_clock"
+            android:layout_width="fill_parent"
-        android:layout_weight="1"
+            android:layout_height="fill_parent"
-        android:layout_width="fill_parent"
+            android:layout_weight="1"
-        android:gravity="right"
+            android:ellipsize="marquee"
-        android:layout_height="wrap_content">
+            android:focusable="true"
-    </TextView>
+            android:focusableInTouchMode="true"
+            android:gravity="center|center_vertical"
+            android:marqueeRepeatLimit="marquee_forever"
+            android:scrollHorizontally="true"
+            android:singleLine="true"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            android:textStyle="bold">
+        </TextView>
+        <TextView
+            android:id="@+id/title_text_summary"
+            style="?android:attr/windowTitleStyle"
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:gravity="center|center_vertical"
+            android:text="">
+        </TextView>
+        <TextView
+            android:id="@+id/black_pieces"
+            style="?android:attr/windowTitleStyle"
+            android:layout_width="fill_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:ellipsize="marquee"
+            android:focusable="true"
+            android:focusableInTouchMode="true"
+            android:gravity="center|center_vertical"
+            android:marqueeRepeatLimit="marquee_forever"
+            android:scrollHorizontally="true"
+            android:singleLine="true"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            android:textStyle="bold">
+        </TextView>
+    </LinearLayout>
 </LinearLayout>

DroidFish/res/values/strings.xml

@@ -200,6 +200,8 @@ you are not actively using the program.\
     <string name="start_new_game">Start New Game?</string>
     <string name="strength_cuckoo_hint">Use the CuckooChess engine for even lower strength.</string>
     <string name="piece_names">P N B R Q K</string>
+    <string name="material_diff_summary">Displays an additional subtitle for captured pieces</string>
+    <string name="material_diff_title">Show Material Difference</string>
     <string name="err_too_few_spaces">Too few spaces</string>
     <string name="err_invalid_piece">Invalid piece</string>
     <string name="err_invalid_side">Invalid side</string>

DroidFish/res/xml/preferences.xml

@@ -196,6 +196,11 @@
             android:entries="@array/viewPieceType_texts"
             android:defaultValue="@string/viewPieceType_default">
         </ListPreference>
+        <CheckBoxPreference
+            android:key="materialDiff"
+            android:summary="@string/material_diff_summary"
+            android:title="@string/material_diff_title" >
+        </CheckBoxPreference>
         <PreferenceScreen
             android:key="buttonSettings"
             android:title="@string/prefs_buttonSettings_title"

DroidFish/src/org/petero/droidfish/ChessBoardPlay.java

@@ -140,9 +140,9 @@ public class ChessBoardPlay extends ChessBoard {
                 int p = pos.getPiece(sq);
                 if (myColor(p)) {
                     String msg = getContext().getString(R.string.piece_can_not_be_moved);
-                    boolean localized = (pgnOptions != null) &&
+                    int pieceType = (pgnOptions == null) ? PGNOptions.PT_LOCAL
-                                        (pgnOptions.view.pieceType != PGNOptions.PT_ENGLISH);
+                                                         : pgnOptions.view.pieceType;
-                    msg += ": " + TextIO.pieceAndSquareToString(localized, p, sq);
+                    msg += ": " + TextIO.pieceAndSquareToString(pieceType, p, sq);
                     Toast.makeText(getContext(), msg, Toast.LENGTH_SHORT).show();
                 }
             }

DroidFish/src/org/petero/droidfish/DroidFish.java

@@ -1,6 +1,7 @@
 /*
     DroidFish - An Android chess program.
     Copyright (C) 2011-2012  Peter Österlund, peterosterlund2@gmail.com
+    Copyright (C) 2012 Leo Mayer
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -47,6 +48,7 @@ import org.petero.droidfish.gamelogic.DroidChessController;
 import org.petero.droidfish.gamelogic.ChessParseError;
 import org.petero.droidfish.gamelogic.Move;
 import org.petero.droidfish.gamelogic.Pair;
+import org.petero.droidfish.gamelogic.Piece;
 import org.petero.droidfish.gamelogic.Position;
 import org.petero.droidfish.gamelogic.TextIO;
 import org.petero.droidfish.gamelogic.PgnToken;
@@ -177,6 +179,8 @@ public class DroidFish extends Activity implements GUIInterface {
     private ImageButton modeButton, undoButton, redoButton;
     private ButtonActions custom1ButtonActions, custom2ButtonActions, custom3ButtonActions;
     private TextView whiteTitleText, blackTitleText, engineTitleText;
+    private View secondTitleLine;
+    private TextView whiteFigText, blackFigText, summaryTitleText;
 
     SharedPreferences settings;
 
@@ -187,6 +191,7 @@ public class DroidFish extends Activity implements GUIInterface {
     private MediaPlayer moveSound;
     private boolean vibrateEnabled;
     private boolean animateMoves;
+    private boolean showMaterialDiff;
 
     private final static String bookDir = "DroidFish";
     private final static String pgnDir = "DroidFish" + File.separator + "pgn";
@@ -357,8 +362,10 @@ public class DroidFish extends Activity implements GUIInterface {
         custom3ButtonActions = new ButtonActions("custom3", CUSTOM3_BUTTON_DIALOG,
                                                  R.string.select_action);
 
+        figNotation = Typeface.createFromAsset(getAssets(), "fonts/DroidFishChessNotationDark.otf");
         setPieceNames(PGNOptions.PT_LOCAL);
-        initUI(true);
+        requestWindowFeature(Window.FEATURE_NO_TITLE);
+        initUI();
 
         gameTextListener = new PgnScreenText(pgnOptions);
         if (ctrl != null)
@@ -393,10 +400,17 @@ public class DroidFish extends Activity implements GUIInterface {
         }
     }
 
+    // Unicode code points for chess pieces
+    private static final String figurinePieceNames = Piece.NOTATION_PAWN   + " " +
+                                                     Piece.NOTATION_KNIGHT + " " +
+                                                     Piece.NOTATION_BISHOP + " " +
+                                                     Piece.NOTATION_ROOK   + " " +
+                                                     Piece.NOTATION_QUEEN  + " " +
+                                                     Piece.NOTATION_KING;
+
     private final void setPieceNames(int pieceType) {
         if (pieceType == PGNOptions.PT_FIGURINE) {
-            // Unicode code points for chess pieces
+            TextIO.setPieceNames(figurinePieceNames);
-            TextIO.setPieceNames("\u2659 \u2658 \u2657 \u2656 \u2655 \u2654");
         } else {
             TextIO.setPieceNames(getString(R.string.piece_names));
         }
@@ -481,7 +495,7 @@ public class DroidFish extends Activity implements GUIInterface {
         super.onConfigurationChanged(newConfig);
         ChessBoardPlay oldCB = cb;
         String statusStr = status.getText().toString();
-        initUI(false);
+        initUI();
         readPrefs();
         cb.cursorX = oldCB.cursorX;
         cb.cursorY = oldCB.cursorY;
@@ -496,20 +510,35 @@ public class DroidFish extends Activity implements GUIInterface {
         setStatusString(statusStr);
         moveListUpdated();
         updateThinkingInfo();
+        ctrl.updateRemainingTime();
+        ctrl.updateMaterialDiffList();
     }
 
-    private final void initUI(boolean initTitle) {
+    private final void initUI() {
-        if (initTitle)
-            requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
         Configuration config = getResources().getConfiguration();
+        // The Android app title is removed with the style, but remains
+        // individually in the Layout cause we need it to have in 2 lines +
+        // landscape and portrait differ quite much
         boolean leftHanded = this.leftHanded && (config.orientation == Configuration.ORIENTATION_LANDSCAPE);
         setContentView(leftHanded ? R.layout.main_left_handed : R.layout.main);
-        if (initTitle) {
+
-            getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title);
+        // title lines need to be regenerated every time due to layout changes (rotations)
-            whiteTitleText = (TextView)findViewById(R.id.white_clock);
+        secondTitleLine = findViewById(R.id.second_title_line);
-            blackTitleText = (TextView)findViewById(R.id.black_clock);
+        whiteTitleText = (TextView)findViewById(R.id.white_clock);
-            engineTitleText  = (TextView)findViewById(R.id.title_text);
+        whiteTitleText.setSelected(true);
-        }
+        blackTitleText = (TextView)findViewById(R.id.black_clock);
+        blackTitleText.setSelected(true);
+        engineTitleText = (TextView)findViewById(R.id.title_text);
+        whiteFigText = (TextView)findViewById(R.id.white_pieces);
+        whiteFigText.setTypeface(figNotation);
+        whiteFigText.setSelected(true);
+        whiteFigText.setTextColor(whiteTitleText.getTextColors());
+        blackFigText = (TextView)findViewById(R.id.black_pieces);
+        blackFigText.setTypeface(figNotation);
+        blackFigText.setSelected(true);
+        blackFigText.setTextColor(blackTitleText.getTextColors());
+        summaryTitleText = (TextView)findViewById(R.id.title_text_summary);
+
         status = (TextView)findViewById(R.id.status);
         moveListScroll = (ScrollView)findViewById(R.id.scrollView);
         moveList = (TextView)findViewById(R.id.moveList);
@@ -778,6 +807,7 @@ public class DroidFish extends Activity implements GUIInterface {
         int movesPerSession = getIntSetting("movesPerSession", 60);
         int timeIncrement = getIntSetting("timeIncrement", 0);
         ctrl.setTimeLimit(timeControl, movesPerSession, timeIncrement);
+        setSummaryTitle();
 
         scrollSensitivity = Float.parseFloat(settings.getString("scrollSensitivity", "2"));
         invertScrollDirection = settings.getBoolean("invertScrollDirection", false);
@@ -788,7 +818,6 @@ public class DroidFish extends Activity implements GUIInterface {
         setWakeLock(useWakeLock);
 
         int fontSize = getIntSetting("fontSize", 12);
-        figNotation = Typeface.createFromAsset(getAssets(), "fonts/DroidFishChessNotationDark.otf");
         int statusFontSize = fontSize;
         Configuration config = getResources().getConfiguration();
         if (config.orientation == Configuration.ORIENTATION_PORTRAIT)
@@ -853,6 +882,9 @@ public class DroidFish extends Activity implements GUIInterface {
         // update the typeset in case of a change anyway, cause it could occur
         // as well in rotation
         setFigurineNotation(pgnOptions.view.pieceType == PGNOptions.PT_FIGURINE, fontSize);
+
+        showMaterialDiff = settings.getBoolean("materialDiff", false);
+        secondTitleLine.setVisibility(showMaterialDiff ? View.VISIBLE : View.GONE);
     }
 
     /**
@@ -953,6 +985,25 @@ public class DroidFish extends Activity implements GUIInterface {
         }
     }
 
+    /** Update center field in second header line. */
+    private final void setSummaryTitle() {
+        int[] tmpInfo = ctrl.getTimeLimit();
+        StringBuilder sb = new StringBuilder();
+        int tc = tmpInfo[0];
+        int mps = tmpInfo[1];
+        int inc = tmpInfo[2];
+        if (mps > 0) {
+            sb.append(mps);
+            sb.append(" / ");
+        }
+        sb.append(timeToString(tc));
+        if ((inc > 0) || (mps <= 0)) {
+            sb.append(" + ");
+            sb.append(tmpInfo[2] / 1000);
+        }
+        summaryTitleText.setText(sb.toString());
+    }
+
     @Override
     public void updateEngineTitle() {
         String engine = settings.getString("engine", "stockfish");
@@ -960,6 +1011,13 @@ public class DroidFish extends Activity implements GUIInterface {
         setEngineTitle(engine, strength);
     }
 
+    @Override
+    public void updateMaterialDifferenceTitle(CharSequence whitePieces,
+                                              CharSequence blackPieces) {
+        whiteFigText.setText(whitePieces);
+        blackFigText.setText(blackPieces);
+    }
+
     private final void setFullScreenMode(boolean fullScreenMode) {
         WindowManager.LayoutParams attrs = getWindow().getAttributes();
         if (fullScreenMode) {

DroidFish/src/org/petero/droidfish/GUIInterface.java

@@ -80,6 +80,10 @@ public interface GUIInterface {
     /** Update engine title text. */
     public void updateEngineTitle();
 
+    /** Update title with the material difference. */
+    public void updateMaterialDifferenceTitle(CharSequence whitePieces,
+                                              CharSequence blackPieces);
+
     /** Report a move made that is a candidate for GUI animation. */
     public void setAnimMove(Position sourcePos, Move move, boolean forward);
 

DroidFish/src/org/petero/droidfish/gamelogic/DroidChessController.java

@@ -111,6 +111,17 @@ public class DroidChessController {
             game.timeController.setTimeControl(timeControl, movesPerSession, timeIncrement);
     }
 
+    /**
+     * @return Array containing time control, moves per session and time increment.
+     */
+    public final int[] getTimeLimit() {
+        int[] ret = new int[3];
+        ret[0] = timeControl;
+        ret[1] = movesPerSession;
+        ret[2] = timeIncrement;
+        return ret;
+    }
+
     /** The chess clocks are stopped when the GUI is paused. */
     public final synchronized void setGuiPaused(boolean paused) {
         guiPaused = paused;
@@ -1020,6 +1031,25 @@ public class DroidChessController {
         gui.setPosition(game.currPos(), sb.toString(), game.tree.variations());
 
         updateRemainingTime();
+        updateMaterialDiffList();
+    }
+
+    public final void updateMaterialDiffList() {
+        Position pos = game.currPos();
+        StringBuilder whiteString = new StringBuilder();
+        StringBuilder blackString = new StringBuilder();
+        for (int p = Piece.WPAWN; p >= Piece.WQUEEN; p--) {
+            int diff = pos.nPieces(p) - pos.nPieces(Piece.swapColor(p));
+            while (diff < 0) {
+                whiteString.append(Piece.toUniCode(Piece.swapColor(p)));
+                diff++;
+            }
+            while (diff > 0) {
+                blackString.append(Piece.toUniCode(p));
+                diff--;
+            }
+        }
+        gui.updateMaterialDifferenceTitle(whiteString, blackString);
     }
 
     private final synchronized void setThinkingInfo(int id, ArrayList<ArrayList<Move>> pvMoves, String pvStr,

DroidFish/src/org/petero/droidfish/gamelogic/Piece.java

@@ -1,6 +1,7 @@
 /*
     DroidFish - An Android chess program.
     Copyright (C) 2011  Peter Österlund, peterosterlund2@gmail.com
+    Copyright (C) 2012  Leo Mayer
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -41,6 +42,30 @@ public class Piece {
 
     public static final int nPieceTypes = 13;
 
+    // Unicode for color neutral chess pieces
+    public static final char NOTATION_KING = 0xe050;
+    public static final char NOTATION_QUEEN = 0xe051;
+    public static final char NOTATION_ROOK = 0xe052;
+    public static final char NOTATION_BISHOP = 0xe053;
+    public static final char NOTATION_KNIGHT = 0xe054;
+    public static final char NOTATION_PAWN = 0xe055;
+
+    // Unicode for white chess pieces
+    public static final char WHITE_KING = 0x2654;
+    public static final char WHITE_QUEEN = 0x2655;
+    public static final char WHITE_ROOK = 0x2656;
+    public static final char WHITE_BISHOP = 0x2657;
+    public static final char WHITE_KNIGHT = 0x2658;
+    public static final char WHITE_PAWN = 0x2659;
+
+    // Unicode for black chess pieces
+    public static final char BLACK_KING = 0x265A;
+    public static final char BLACK_QUEEN = 0x265B;
+    public static final char BLACK_ROOK = 0x265C;
+    public static final char BLACK_BISHOP = 0x265D;
+    public static final char BLACK_KNIGHT = 0x265E;
+    public static final char BLACK_PAWN = 0x265F;
+
     /**
      * Return true if p is a white piece, false otherwise.
      * Note that if p is EMPTY, an unspecified value is returned.
@@ -59,4 +84,10 @@ public class Piece {
             return EMPTY;
         return isWhite(pType) ? pType + (BKING - WKING) : pType - (BKING - WKING);
     }
+
+    /** Converts the piece into a character for the material diff. */
+    public final static char toUniCode(int p) {
+        // As we assume, the coding of the pieces is sequential, lets do some math.
+        return (char)(WHITE_KING + p - 1);
+    }
 }

DroidFish/src/org/petero/droidfish/gamelogic/TextIO.java

@@ -21,6 +21,7 @@ package org.petero.droidfish.gamelogic;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.petero.droidfish.PGNOptions;
 import org.petero.droidfish.R;
 
 
@@ -729,14 +730,19 @@ public class TextIO {
     }
 
     /** Convert a piece and a square to a string, such as Nf3. */
-    public final static String pieceAndSquareToString(boolean localized, int p, int sq) {
+    public final static String pieceAndSquareToString(int currentPieceType, int p, int sq) {
-        String ret;
+        StringBuilder ret = new StringBuilder();
-        if ((p == Piece.WPAWN) || (p == Piece.BPAWN))
+        if (currentPieceType == PGNOptions.PT_FIGURINE) {
-            ret = localized ? pieceNames[0] : "P";
+            ret.append(Piece.toUniCode(p));
-        else
+        } else {
-            ret = localized ? pieceToCharLocalized(p) : pieceToChar(p);
+            boolean localized = (currentPieceType != PGNOptions.PT_ENGLISH);
-        ret += squareToString(sq);
+            if ((p == Piece.WPAWN) || (p == Piece.BPAWN))
-        return ret;
+                ret.append(localized ? pieceNames[0] : "P");
+            else
+                ret.append(localized ? pieceToCharLocalized(p) : pieceToChar(p));
+        }
+        ret.append(squareToString(sq));
+        return ret.toString();
     }
 
     private final static String pieceToChar(int p) {