[Android] Implement a very basic version of the input overlay configuration screen.

Still a bit of a mess, but this will get cleaned up during finalizations.

Source/Android/AndroidManifest.xml

@@ -38,6 +38,8 @@
         <activity android:name="org.dolphinemu.dolphinemu.emulation.EmulationActivity"
                   android:screenOrientation="landscape" />
 
+        <activity android:name="org.dolphinemu.dolphinemu.settings.input.InputOverlayConfigActivity"/>
+
         <activity
             android:name="org.dolphinemu.dolphinemu.settings.PrefsActivity"
             android:label="@string/settings" />

Source/Android/res/layout/emulation_view.xml

@@ -11,4 +11,12 @@
         android:focusable="false"
         android:focusableInTouchMode="false"/>
 
+        <!-- This is the onscreen input overlay -->
+    <org.dolphinemu.dolphinemu.emulation.overlay.InputOverlay 
+        android:id="@+id/emulationControlOverlay"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"
+        android:focusable="true"
+        android:focusableInTouchMode="true"/>
+
 </merge>

Source/Android/res/layout/input_overlay_config_layout.xml

@@ -0,0 +1,32 @@
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/inputLayout"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent" >
+
+    <org.dolphinemu.dolphinemu.settings.input.InputOverlayConfigButton
+        android:id="@+id/buttonA"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentLeft="true"
+        android:layout_alignParentTop="true"
+        android:background="@drawable/button_a" />
+
+    <org.dolphinemu.dolphinemu.settings.input.InputOverlayConfigButton
+        android:id="@+id/buttonStart"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignBottom="@+id/buttonB"
+        android:layout_alignParentTop="true"
+        android:layout_centerHorizontal="true"
+        android:background="@drawable/button_start" />
+
+    <org.dolphinemu.dolphinemu.settings.input.InputOverlayConfigButton
+        android:id="@+id/buttonB"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentTop="true"
+        android:layout_toLeftOf="@+id/buttonStart"
+        android:background="@drawable/button_b" />
+
+</RelativeLayout>

Source/Android/res/xml/input_prefs.xml

@@ -3,6 +3,10 @@
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
                   android:title="@string/input_settings">
                   
+    <Preference
+        android:key="inputOverlayConfigPref"
+        android:title="Butts"/>
+
     <PreferenceScreen android:title="@string/gamecube_bindings">
         <Preference
             android:key="InputA"

Source/Android/src/org/dolphinemu/dolphinemu/AboutFragment.java

@@ -20,7 +20,7 @@ import android.widget.TextView;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.dolphinemu.dolphinemu.settings.VideoSettingsFragment;
+import org.dolphinemu.dolphinemu.settings.video.VideoSettingsFragment;
 
 /**
  * Represents the about screen.

Source/Android/src/org/dolphinemu/dolphinemu/emulation/EmulationActivity.java

@@ -21,8 +21,8 @@ import android.view.WindowManager.LayoutParams;
 
 import org.dolphinemu.dolphinemu.NativeLibrary;
 import org.dolphinemu.dolphinemu.R;
-import org.dolphinemu.dolphinemu.settings.InputConfigFragment;
-import org.dolphinemu.dolphinemu.settings.VideoSettingsFragment;
+import org.dolphinemu.dolphinemu.settings.input.InputConfigFragment;
+import org.dolphinemu.dolphinemu.settings.video.VideoSettingsFragment;
 
 import java.util.List;
 

Source/Android/src/org/dolphinemu/dolphinemu/emulation/overlay/InputOverlay.java

@@ -0,0 +1,64 @@
+package org.dolphinemu.dolphinemu.emulation.overlay;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.SurfaceView;
+import android.view.View;
+import android.view.View.OnTouchListener;
+
+/**
+ * Draws the interactive input overlay on top of the
+ * {@link NativeGLSurfaceView} that is rendering emulation.
+ */
+public final class InputOverlay extends SurfaceView implements OnTouchListener
+{
+	private final Set<InputOverlayItem> overlayItems = new HashSet<InputOverlayItem>();
+
+	/**
+	 * Constructor
+	 * 
+	 * @param context The current {@link Context}.
+	 * @param attrs   {@link AttributeSet} for parsing XML attributes.
+	 */
+	public InputOverlay(Context context, AttributeSet attrs)
+	{
+		super(context, attrs);
+
+		// Force draw
+		setWillNotDraw(false);
+
+		// Request focus for the overlay so it has priority on presses.
+		requestFocus();
+	}
+
+	@Override
+	public boolean onTouch(View v, MotionEvent event)
+	{
+		switch (event.getAction())
+		{
+			case MotionEvent.ACTION_DOWN:
+			{
+				// TODO: Handle down presses.
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	@Override
+	public void onDraw(Canvas canvas)
+	{
+		super.onDraw(canvas);
+
+		for (InputOverlayItem item : overlayItems)
+		{
+			item.draw(canvas);
+		}
+	}
+}

Source/Android/src/org/dolphinemu/dolphinemu/emulation/overlay/InputOverlayItem.java

@@ -0,0 +1,107 @@
+package org.dolphinemu.dolphinemu.emulation.overlay;
+
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.drawable.BitmapDrawable;
+
+/**
+ * Represents a drawable image for the {@link InputOverlay}
+ */
+public final class InputOverlayItem
+{
+	// The image as a BitmapDrawable
+	private BitmapDrawable drawable;
+	
+	// Width and height of the underlying image.
+	private int width;
+	private int height;
+
+	// X and Y coordinates to display this item at.
+	private int x;
+	private int y;
+
+	// Image scale factor.
+	private float scaleFactor = 1.0f;
+
+	// Rectangle that we draw this item to.
+	private Rect drawRect;
+
+	/**
+	 * Constructor.
+	 * 
+	 * @param res   Reference to the app resources for fetching display metrics.
+	 * @param resId Resource ID of the {@link BitmapDrawable} to encapsulate.
+	 */
+	public InputOverlayItem(Resources res, int resId)
+	{
+		// Idiot-proof the constructor.
+		if (res == null)
+			throw new IllegalArgumentException("res cannot be null");
+
+		// Everything is valid, decode the filename as a bitmap.
+		drawable = (BitmapDrawable) res.getDrawable(resId);
+		Bitmap image = drawable.getBitmap();
+
+		// Set width/height
+		width = image.getWidth();
+		height = image.getHeight();
+
+		// Initialize rectangle to zero width, height, x, and y.
+		drawRect = new Rect();
+	}
+
+	/**
+	 * Constructor
+	 * 
+	 * @param res   Reference to the app resources for fetching display metrics.
+	 * @param resId Resource ID of the {@link BitmapDrawable} to encapsulate.
+	 * @param x     X coordinate on the screen to place the control.
+	 * @param y     Y coordinate on the screen to place the control.
+	 */
+	public InputOverlayItem(Resources res, int resId, int x, int y)
+	{
+		this(res, resId);
+
+		setPosition(x, y);
+	}
+
+	/**
+	 * Sets the position of this item on the screen.
+	 * 
+	 * @param x New x-coordinate for this image.
+	 * @param y New y-coordinate for this image.
+	 */
+	public void setPosition(int x, int y)
+	{
+		this.x = x;
+		this.y = y;
+
+		drawRect.set(x, y, x + (int)(width * scaleFactor), y + (int)(height * scaleFactor));
+		drawable.setBounds(drawRect);
+	}
+
+	/**
+	 * Sets a new scaling factor for the current image.
+	 * 
+	 * @param scaleFactor The new scaling factor. Note that 1.0 is normal size.
+	 */
+	public void setScaleFactor(float scaleFactor)
+	{
+		this.scaleFactor = scaleFactor;
+
+		// Adjust for the new scale factor.
+		setPosition(x, y);
+	}
+
+	/**
+	 * Draws this item to a given canvas.
+	 * 
+	 * @param canvas The canvas to draw this item to.
+	 */
+	public void draw(Canvas canvas)
+	{
+		drawable.draw(canvas);
+	}
+}

Source/Android/src/org/dolphinemu/dolphinemu/settings/PrefsActivity.java

@@ -7,6 +7,9 @@
 package org.dolphinemu.dolphinemu.settings;
 
 import org.dolphinemu.dolphinemu.R;
+import org.dolphinemu.dolphinemu.settings.cpu.CPUSettingsFragment;
+import org.dolphinemu.dolphinemu.settings.input.InputConfigFragment;
+import org.dolphinemu.dolphinemu.settings.video.VideoSettingsFragment;
 
 import android.app.ActionBar;
 import android.app.ActionBar.Tab;

Source/Android/src/org/dolphinemu/dolphinemu/settings/cpu/CPUSettingsFragment.java

@@ -4,7 +4,7 @@
  * Refer to the license.txt file included.
  */
 
-package org.dolphinemu.dolphinemu.settings;
+package org.dolphinemu.dolphinemu.settings.cpu;
 
 import org.dolphinemu.dolphinemu.R;
 

Source/Android/src/org/dolphinemu/dolphinemu/settings/input/InputConfigFragment.java

@@ -4,12 +4,13 @@
  * Refer to the license.txt file included.
  */
 
-package org.dolphinemu.dolphinemu.settings;
+package org.dolphinemu.dolphinemu.settings.input;
 
 import android.app.AlertDialog;
 import android.app.Fragment;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.content.Intent;
 import android.os.Build;
 import android.os.Bundle;
 import android.preference.Preference;
@@ -115,11 +116,19 @@ public final class InputConfigFragment extends PreferenceFragment
 
 			// Everything is set, show the dialog.
 			dialog.show();
+			return true;
 		}
 
+		if (pref.getKey().equals("inputOverlayConfigPref"))
+		{
+			Intent inputOverlayConfig = new Intent(getActivity(), InputOverlayConfigActivity.class);
+			startActivity(inputOverlayConfig);
 			return true;
 		}
 
+		return false;
+	}
+
 	/**
 	 * {@link AlertDialog} derivative that listens for
 	 * motion events from controllers and joysticks.

Source/Android/src/org/dolphinemu/dolphinemu/settings/input/InputOverlayConfigActivity.java

@@ -0,0 +1,27 @@
+/**
+ * Copyright 2013 Dolphin Emulator Project
+ * Licensed under GPLv2
+ * Refer to the license.txt file included.
+ */
+
+package org.dolphinemu.dolphinemu.settings.input;
+
+import org.dolphinemu.dolphinemu.R;
+
+import android.app.Activity;
+import android.os.Bundle;
+
+/**
+ * {@link Activity} used for configuring the input overlay.
+ */
+public final class InputOverlayConfigActivity extends Activity
+{
+	@Override
+	public void onCreate(Bundle savedInstanceState)
+	{
+		super.onCreate(savedInstanceState);
+
+		// Set the initial layout.
+		setContentView(R.layout.input_overlay_config_layout);
+	}
+}

Source/Android/src/org/dolphinemu/dolphinemu/settings/input/InputOverlayConfigButton.java

@@ -0,0 +1,52 @@
+/**
+ * Copyright 2013 Dolphin Emulator Project
+ * Licensed under GPLv2
+ * Refer to the license.txt file included.
+ */
+
+package org.dolphinemu.dolphinemu.settings.input;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.View.OnTouchListener;
+import android.widget.Button;
+
+/**
+ * A movable {@link Button} for use within the
+ * input overlay configuration screen.
+ */
+public final class InputOverlayConfigButton extends Button implements OnTouchListener
+{
+	/**
+	 * Constructor
+	 * 
+	 * @param context The current {@link Context}.
+	 * @param attribs {@link AttributeSet} for parsing XML attributes.
+	 */
+	public InputOverlayConfigButton(Context context, AttributeSet attribs)
+	{
+		super(context, attribs);
+
+		// Set the button as its own OnTouchListener.
+		setOnTouchListener(this);
+	}
+
+	@Override
+	public boolean onTouch(View v, MotionEvent event)
+	{
+		switch(event.getAction())
+		{
+			// Only change the X/Y coordinates when we move the button.
+			case MotionEvent.ACTION_MOVE:
+			{
+				setX(getX() + event.getX());
+				setY(getY() + event.getY());
+				return true;
+			}
+		}
+
+		return false;
+	}
+}

Source/Android/src/org/dolphinemu/dolphinemu/settings/video/VideoSettingsFragment.java

@@ -4,7 +4,7 @@
  * Refer to the license.txt file included.
  */
 
-package org.dolphinemu.dolphinemu.settings;
+package org.dolphinemu.dolphinemu.settings.video;
 
 import android.app.Activity;
 import android.content.SharedPreferences;