Initial commit

Signed-off-by: jruesga <jorge@ruesga.com>

5 files changed, 1073 insertions, 0 deletions

diff --git a/src/org/cyanogenmod/wallpapers/photophase/widgets/AlbumInfo.java b/src/org/cyanogenmod/wallpapers/photophase/widgets/AlbumInfo.java
new file mode 100644
index 0000000..0711297
--- /dev/null
+++ b/src/org/cyanogenmod/wallpapers/photophase/widgets/AlbumInfo.java
@@ -0,0 +1,281 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.cyanogenmod.wallpapers.photophase.widgets;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.os.AsyncTask.Status;
+import android.util.AttributeSet;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.ImageView;
+import android.widget.PopupMenu;
+import android.widget.PopupMenu.OnMenuItemClickListener;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import org.cyanogenmod.wallpapers.photophase.R;
+import org.cyanogenmod.wallpapers.photophase.model.Album;
+import org.cyanogenmod.wallpapers.photophase.tasks.AsyncPictureLoaderTask;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * A view that contains the info about an album
+ */
+public class AlbumInfo extends RelativeLayout
+    implements OnClickListener, OnMenuItemClickListener {
+
+    /**
+     * A convenient listener for receive events of the AlbumPictures class
+     *
+     */
+    public interface CallbacksListener {
+        /**
+         * Invoked when an album was selected
+         *
+         * @param album The album
+         */
+        void onAlbumSelected(Album album);
+
+        /**
+         * Invoked when an album was deselected
+         *
+         * @param album The album
+         */
+        void onAlbumDeselected(Album album);
+    }
+
+    private List<CallbacksListener> mCallbacks;
+
+    /*package*/ Album mAlbum;
+
+    /*package*/ AsyncPictureLoaderTask mTask;
+
+    /*package*/ ImageView mIcon;
+    private TextView mSelectedItems;
+    private TextView mName;
+    private TextView mItems;
+    private View mOverflowButton;
+
+    /**
+     * Constructor of <code>AlbumInfo</code>.
+     *
+     * @param context The current context
+     */
+    public AlbumInfo(Context context) {
+        super(context);
+        init();
+    }
+
+    /**
+     * Constructor of <code>AlbumInfo</code>.
+     *
+     * @param context The current context
+     * @param attrs The attributes of the XML tag that is inflating the view.
+     */
+    public AlbumInfo(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    /**
+     * Constructor of <code>AlbumInfo</code>.
+     *
+     * @param context The current context
+     * @param attrs The attributes of the XML tag that is inflating the view.
+     * @param defStyle The default style to apply to this view. If 0, no style
+     *        will be applied (beyond what is included in the theme). This may
+     *        either be an attribute resource, whose value will be retrieved
+     *        from the current theme, or an explicit style resource.
+     */
+    public AlbumInfo(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        init();
+    }
+
+    /**
+     * Method that initializes the internal references
+     */
+    private void init() {
+        mCallbacks = new ArrayList<AlbumInfo.CallbacksListener>();
+    }
+
+    /**
+     * Method that adds the class that will be listen for events of this class
+     *
+     * @param callback The callback class
+     */
+    public void addCallBackListener(CallbacksListener callback) {
+        this.mCallbacks.add(callback);
+    }
+
+    /**
+     * Method that removes the class from the current callbacks
+     *
+     * @param callback The callback class
+     */
+    public void removeCallBackListener(CallbacksListener callback) {
+        this.mCallbacks.remove(callback);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+
+        mIcon = (ImageView)findViewById(R.id.album_thumbnail);
+        mSelectedItems = (TextView)findViewById(R.id.album_selected_items);
+        mName = (TextView)findViewById(R.id.album_name);
+        mItems = (TextView)findViewById(R.id.album_items);
+        mOverflowButton = findViewById(R.id.overflow);
+        mOverflowButton.setOnClickListener(this);
+
+        updateView(mAlbum);
+
+        post(new Runnable() {
+            @Override
+            public void run() {
+                // Show as icon, the first picture
+                mTask = new AsyncPictureLoaderTask(getContext(), mIcon);
+                mTask.execute(new File(mAlbum.getItems().get(0)));
+            }
+        });
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+
+        // Cancel pending tasks
+        if (mTask.getStatus().compareTo(Status.PENDING) == 0) {
+            mTask.cancel(true);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void onClick(View v) {
+        if (v.equals(mOverflowButton)) {
+            PopupMenu popup = new PopupMenu(getContext(), v);
+            MenuInflater inflater = popup.getMenuInflater();
+            inflater.inflate(R.menu.album_actions, popup.getMenu());
+            onPreparePopupMenu(popup.getMenu());
+            popup.setOnMenuItemClickListener(this);
+            popup.show();
+            return;
+        }
+    }
+
+    /**
+     * Method called prior to show the popup menu
+     *
+     * @param popup The popup menu
+     */
+    public void onPreparePopupMenu(Menu popup) {
+        if (isSelected()) {
+            popup.findItem(R.id.mnu_select_album).setVisible(false);
+        } else {
+            popup.findItem(R.id.mnu_deselect_album).setVisible(false);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean onMenuItemClick(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.mnu_select_album:
+                doSelection(true);
+                break;
+
+            case R.id.mnu_deselect_album:
+                doSelection(false);
+                break;
+
+            default:
+                return false;
+        }
+        return true;
+    }
+
+    /**
+     * Method that select/deselect the album
+     *
+     * @param selected whether the album is selected
+     */
+    public void doSelection(boolean selected) {
+        setSelected(selected);
+        mAlbum.setSelected(selected);
+        mAlbum.setSelectedItems(new ArrayList<String>());
+        updateView(mAlbum);
+        notifySelectionChanged();
+    }
+
+    /**
+     * Method that notifies to all the registered callbacks that the selection
+     * was changed
+     */
+    private void notifySelectionChanged() {
+        for (CallbacksListener callback : mCallbacks) {
+            if (mAlbum.isSelected()) {
+                callback.onAlbumSelected(mAlbum);
+            } else {
+                callback.onAlbumDeselected(mAlbum);
+            }
+        }
+    }
+
+    /**
+     * Method that updates the view
+     *
+     * @param album The album data
+     */
+    @SuppressWarnings("boxing")
+    public void updateView(Album album) {
+        mAlbum = album;
+
+        if (mIcon != null) {
+            Resources res = getContext().getResources();
+
+            String count = String.valueOf(mAlbum.getSelectedItems().size());
+            if (mAlbum.getItems().size() > 99) {
+                count += "+";
+            }
+            mSelectedItems.setText(count);
+            mSelectedItems.setVisibility(mAlbum.isSelected() ? View.INVISIBLE : View.VISIBLE);
+            mName.setText(mAlbum.getName());
+            int items = mAlbum.getItems().size();
+            mItems.setText(String.format(res.getQuantityText(
+                    R.plurals.album_number_of_pictures, items).toString(), items));
+            setSelected(album.isSelected());
+        }
+    }
+}
diff --git a/src/org/cyanogenmod/wallpapers/photophase/widgets/AlbumPictures.java b/src/org/cyanogenmod/wallpapers/photophase/widgets/AlbumPictures.java
new file mode 100644
index 0000000..324fe15
--- /dev/null
+++ b/src/org/cyanogenmod/wallpapers/photophase/widgets/AlbumPictures.java
@@ -0,0 +1,308 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.cyanogenmod.wallpapers.photophase.widgets;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.LinearLayout;
+import android.widget.PopupMenu;
+import android.widget.PopupMenu.OnMenuItemClickListener;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import org.cyanogenmod.wallpapers.photophase.R;
+import org.cyanogenmod.wallpapers.photophase.model.Album;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * A view that contains the pictures of an album
+ */
+public class AlbumPictures extends RelativeLayout
+    implements OnClickListener, OnMenuItemClickListener {
+
+    private static final int SELECTION_SELECT_ALL = 1;
+    private static final int SELECTION_DESELECT_ALL = 2;
+    private static final int SELECTION_INVERT = 3;
+
+    /**
+     * A convenient listener for receive events of the AlbumPictures class
+     *
+     */
+    public interface CallbacksListener {
+        /**
+         * Invoked when the user pressed the back button
+         */
+        void onBackButtonClick(View v);
+
+        /**
+         * Invoked when the selection was changed
+         *
+         * @param album The album
+         */
+        void onSelectionChanged(Album album);
+    }
+
+    private List<CallbacksListener> mCallbacks;
+
+    private PicturesView mScroller;
+    private LinearLayout mHolder;
+    private View mBackButton;
+    private View mOverflowButton;
+
+    private Album mAlbum;
+
+    /**
+     * Constructor of <code>AlbumPictures</code>.
+     *
+     * @param context The current context
+     */
+    public AlbumPictures(Context context) {
+        super(context);
+        init();
+    }
+
+    /**
+     * Constructor of <code>AlbumPictures</code>.
+     *
+     * @param context The current context
+     * @param attrs The attributes of the XML tag that is inflating the view.
+     */
+    public AlbumPictures(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    /**
+     * Constructor of <code>AlbumPictures</code>.
+     *
+     * @param context The current context
+     * @param attrs The attributes of the XML tag that is inflating the view.
+     * @param defStyle The default style to apply to this view. If 0, no style
+     *        will be applied (beyond what is included in the theme). This may
+     *        either be an attribute resource, whose value will be retrieved
+     *        from the current theme, or an explicit style resource.
+     */
+    public AlbumPictures(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        init();
+    }
+
+    /**
+     * Method that initializes the internal references
+     */
+    private void init() {
+        mCallbacks = new ArrayList<AlbumPictures.CallbacksListener>();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        mScroller = (PicturesView)findViewById(R.id.album_pictures_scroller);
+        mHolder = (LinearLayout)findViewById(R.id.album_pictures_holder);
+        mBackButton = findViewById(R.id.back);
+        mBackButton.setOnClickListener(this);
+        mOverflowButton = findViewById(R.id.overflow);
+        mOverflowButton.setOnClickListener(this);
+        TextView title = (TextView)findViewById(R.id.album_pictures_title);
+        title.setText(mAlbum.getName());
+
+        updateView(mAlbum);
+    }
+
+    /**
+     * Method that adds the class that will be listen for events of this class
+     *
+     * @param callback The callback class
+     */
+    public void addCallBackListener(CallbacksListener callback) {
+        this.mCallbacks.add(callback);
+    }
+
+    /**
+     * Method that removes the class from the current callbacks
+     *
+     * @param callback The callback class
+     */
+    public void removeCallBackListener(CallbacksListener callback) {
+        this.mCallbacks.remove(callback);
+    }
+
+    /**
+     * Method that set the data of the view
+     *
+     * @param album The album data
+     */
+    public void updateView(Album album) {
+        mAlbum = album;
+
+        if (mHolder != null) {
+            // Create the pictures
+            final LayoutInflater inflater = (LayoutInflater) getContext().
+                    getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            mScroller.cancelTasks();
+            mHolder.removeAllViews();
+            for (final String picture : mAlbum.getItems()) {
+                View v = createPicture(inflater, picture, isPictureSelected(picture));
+                mHolder.addView(v);
+            }
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void onClick(View v) {
+        // Check which is the view pressed
+        if (v.equals(mBackButton)) {
+            for (CallbacksListener callback : mCallbacks) {
+                callback.onBackButtonClick(v);
+            }
+            return;
+        }
+        if (v.equals(mOverflowButton)) {
+            PopupMenu popup = new PopupMenu(getContext(), v);
+            MenuInflater inflater = popup.getMenuInflater();
+            inflater.inflate(R.menu.pictures_actions, popup.getMenu());
+            popup.setOnMenuItemClickListener(this);
+            popup.show();
+            return;
+        }
+
+        // A picture view
+        v.setSelected(!v.isSelected());
+        notifySelectionChanged();
+    }
+
+    /**
+     * Method that notifies to all the registered callbacks that the selection
+     * was changed
+     */
+    private void notifySelectionChanged() {
+        List<String> selection = new ArrayList<String>();
+        int count = mHolder.getChildCount();
+        for (int i = 0; i < count; i++) {
+            View v = mHolder.getChildAt(i);
+            if (v.isSelected()) {
+                selection.add((String)v.getTag());
+            }
+        }
+        mAlbum.setSelectedItems(selection);
+        mAlbum.setSelected(false);
+
+        for (CallbacksListener callback : mCallbacks) {
+            callback.onSelectionChanged(mAlbum);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean onMenuItemClick(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.mnu_select_all:
+                doSelection(SELECTION_SELECT_ALL);
+                break;
+
+            case R.id.mnu_deselect_all:
+                doSelection(SELECTION_DESELECT_ALL);
+                break;
+
+            case R.id.mnu_invert_selection:
+                doSelection(SELECTION_INVERT);
+                break;
+
+            default:
+                return false;
+        }
+        return true;
+    }
+
+    /**
+     * Operate over the selection of the pictures of this album.
+     *
+     * @param action Takes the next values:
+     * <ul>
+     * <li>SELECTION_SELECT_ALL: select all</li>
+     * <li>SELECTION_DESELECT_ALL: deselect all</li>
+     * <li>SELECTION_INVERT: invert selection</li>
+     * </ul>
+     */
+    private void doSelection(int action) {
+        int count = mHolder.getChildCount();
+        for (int i = 0; i < count; i++) {
+            View v = mHolder.getChildAt(i);
+
+            boolean selected = true;
+            if (action == SELECTION_DESELECT_ALL) {
+                selected = false;
+            } else if (action == SELECTION_INVERT) {
+                selected = !v.isSelected();
+            }
+            v.setSelected(selected);
+        }
+        notifySelectionChanged();
+    }
+
+    /**
+     * Method invoked when the view is displayed
+     */
+    public void onShow() {
+        mScroller.requestLoadOfPendingPictures();
+    }
+
+    /**
+     * Method that creates a new picture view
+     *
+     * @param inflater The inflater of the parent view
+     * @param picture The path of the picture
+     * @param selected If the picture is selected
+     */
+    private View createPicture(LayoutInflater inflater, String picture, boolean selected) {
+        final View v = inflater.inflate(R.layout.picture_item, mHolder, false);
+        v.setTag(picture);
+        v.setSelected(selected);
+        v.setOnClickListener(this);
+        return v;
+    }
+
+    /**
+     * Method that check if a picture is selected
+     *
+     * @param picture The picture to check
+     * @return boolean whether the picture is selected
+     */
+    private boolean isPictureSelected(String picture) {
+        for (String item : mAlbum.getSelectedItems()) {
+            if (item.compareTo(picture) == 0) {
+                return true;
+            }
+        }
+        return false;
+    }
+}
diff --git a/src/org/cyanogenmod/wallpapers/photophase/widgets/CardLayout.java b/src/org/cyanogenmod/wallpapers/photophase/widgets/CardLayout.java
new file mode 100644
index 0000000..386ffbe
--- /dev/null
+++ b/src/org/cyanogenmod/wallpapers/photophase/widgets/CardLayout.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.cyanogenmod.wallpapers.photophase.widgets;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.animation.AnimationUtils;
+import android.widget.LinearLayout;
+
+import org.cyanogenmod.wallpapers.photophase.R;
+
+/**
+ * A "Google Now Card Layout" like layout
+ */
+public class CardLayout extends LinearLayout {
+
+    boolean inverted = false;
+
+    /**
+     * Constructor of <code>CardLayout</code>.
+     *
+     * @param context The current context
+     */
+    public CardLayout(Context context) {
+        super(context);
+    }
+
+    /**
+     * Constructor of <code>CardLayout</code>.
+     *
+     * @param context The current context
+     * @param attrs The attributes of the XML tag that is inflating the view.
+     */
+    public CardLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    /**
+     * Constructor of <code>CardLayout</code>.
+     *
+     * @param context The current context
+     * @param attrs The attributes of the XML tag that is inflating the view.
+     * @param defStyle The default style to apply to this view. If 0, no style
+     *        will be applied (beyond what is included in the theme). This may
+     *        either be an attribute resource, whose value will be retrieved
+     *        from the current theme, or an explicit style resource.
+     */
+    public CardLayout(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        if (isHardwareAccelerated()) {
+            setLayerType(View.LAYER_TYPE_HARDWARE, null);
+        }
+    }
+
+    /**
+     * Add a new card to the layout
+     *
+     * @param card The card view to add
+     */
+    public void addCard(final View card) {
+        post(new Runnable() {
+            @Override
+            public void run() {
+                addView(card);
+                card.startAnimation(AnimationUtils.loadAnimation(getContext(), R.anim.cards_animation));
+            }
+        });
+    }
+}
diff --git a/src/org/cyanogenmod/wallpapers/photophase/widgets/ColorPickerPreference.java b/src/org/cyanogenmod/wallpapers/photophase/widgets/ColorPickerPreference.java
new file mode 100644
index 0000000..42e701d
--- /dev/null
+++ b/src/org/cyanogenmod/wallpapers/photophase/widgets/ColorPickerPreference.java
@@ -0,0 +1,253 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.cyanogenmod.wallpapers.photophase.widgets;
+
+import afzkl.development.mColorPicker.views.ColorDialogView;
+import afzkl.development.mColorPicker.views.ColorPanelView;
+
+import android.app.AlertDialog.Builder;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.content.SharedPreferences;
+import android.content.res.TypedArray;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.preference.DialogPreference;
+import android.preference.Preference;
+import android.util.AttributeSet;
+import android.view.View;
+
+import org.cyanogenmod.wallpapers.photophase.R;
+
+/**
+ * A {@link Preference} that allow to select/pick a color in a new window dialog.
+ */
+public class ColorPickerPreference extends DialogPreference {
+
+    private ColorPanelView mColorPicker;
+    private int mColor;
+
+    private ColorDialogView mColorDlg;
+
+    /**
+     * Constructor of <code>ColorPickerPreference</code>
+     *
+     * @param context The current context
+     */
+    public ColorPickerPreference(Context context) {
+        this(context, null);
+    }
+
+    /**
+     * Constructor of <code>ColorPickerPreference</code>
+     *
+     * @param context The current context
+     * @param attrs The attributes of the XML tag that is inflating the preference.
+     */
+    public ColorPickerPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setWidgetLayoutResource(R.layout.color_picker_pref_item);
+    }
+
+    /**
+     * Returns the color of the picker.
+     *
+     * @return The color of the picker.
+     */
+    public int getColor() {
+        return this.mColor;
+    }
+
+    /**
+     * Sets the color of the picker and saves it to the {@link SharedPreferences}.
+     *
+     * @param color The new color.
+     */
+    public void setColor(int color) {
+        // Always persist/notify the first time; don't assume the field's default of false.
+        final boolean changed = this.mColor != color;
+        if (changed) {
+            this.mColor = color;
+            // when called from onSetInitialValue the view is still not set
+            if (this.mColorPicker != null) {
+                this.mColorPicker.setColor(color);
+            }
+            persistInt(color);
+            if (changed) {
+                notifyDependencyChange(shouldDisableDependents());
+                notifyChanged();
+            }
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected Object onGetDefaultValue(TypedArray a, int index) {
+        return Integer.valueOf(a.getColor(index, 0));
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
+        setColor(restoreValue ? getPersistedInt(0) : ((Integer)defaultValue).intValue());
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onPrepareDialogBuilder(Builder builder) {
+        super.onPrepareDialogBuilder(builder);
+
+        // Configure the dialog
+        this.mColorDlg = new ColorDialogView(getContext());
+        this.mColorDlg.setColor(this.mColor);
+        this.mColorDlg.showAlphaSlider(true);
+        this.mColorDlg.setAlphaSliderText(
+                getContext().getString(R.string.color_picker_alpha_slider_text));
+        this.mColorDlg.setCurrentColorText(
+                getContext().getString(R.string.color_picker_current_text));
+        this.mColorDlg.setNewColorText(
+                getContext().getString(R.string.color_picker_new_text));
+        this.mColorDlg.setColorLabelText(
+                getContext().getString(R.string.color_picker_color));
+        builder.setView(this.mColorDlg);
+
+        // The color is selected by the user and confirmed by clicking ok
+        builder.setPositiveButton(android.R.string.ok, new OnClickListener() {
+            @Override
+            @SuppressWarnings("synthetic-access")
+            public void onClick(DialogInterface dialog, int which) {
+                int color = ColorPickerPreference.this.mColorDlg.getColor();
+                if (callChangeListener(Integer.valueOf(color))) {
+                    setColor(color);
+                }
+                dialog.dismiss();
+            }
+        });
+    }
+
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+        View v = view.findViewById(R.id.color_picker);
+        if (v != null && v instanceof ColorPanelView) {
+            this.mColorPicker = (ColorPanelView)v;
+            this.mColorPicker.setColor(this.mColor);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected Parcelable onSaveInstanceState() {
+        final Parcelable superState = super.onSaveInstanceState();
+        if (isPersistent()) {
+            // No need to save instance state since it's persistent
+            return superState;
+        }
+
+        final SavedState myState = new SavedState(superState);
+        myState.color = getColor();
+        return myState;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onRestoreInstanceState(Parcelable state) {
+        if (state == null || !state.getClass().equals(SavedState.class)) {
+            // Didn't save state for us in onSaveInstanceState
+            super.onRestoreInstanceState(state);
+            return;
+        }
+
+        SavedState myState = (SavedState) state;
+        super.onRestoreInstanceState(myState.getSuperState());
+        setColor(myState.color);
+    }
+
+    /**
+     * A class for managing the instance state of a {@link ColorPickerPreference}.
+     */
+    static class SavedState extends BaseSavedState {
+        int color;
+
+        /**
+         * Constructor of <code>SavedState</code>
+         *
+         * @param source The source
+         */
+        public SavedState(Parcel source) {
+            super(source);
+            this.color = source.readInt();
+        }
+
+        /**
+         * Constructor of <code>SavedState</code>
+         *
+         * @param superState The parcelable state
+         */
+        public SavedState(Parcelable superState) {
+            super(superState);
+        }
+
+        /**
+         * {@inheritDoc}
+         */
+        @Override
+        public void writeToParcel(Parcel dest, int flags) {
+            super.writeToParcel(dest, flags);
+            dest.writeInt(this.color);
+        }
+
+        /**
+         * A class that generates instances of the <code>SavedState</code> class from a Parcel.
+         */
+        @SuppressWarnings("hiding")
+        public static final Parcelable.Creator<SavedState> CREATOR =
+                new Parcelable.Creator<SavedState>() {
+
+            /**
+             * {@inheritDoc}
+             */
+            @Override
+            public SavedState createFromParcel(Parcel in) {
+                return new SavedState(in);
+            }
+
+            /**
+             * {@inheritDoc}
+             */
+            @Override
+            public SavedState[] newArray(int size) {
+                return new SavedState[size];
+            }
+        };
+    }
+}
diff --git a/src/org/cyanogenmod/wallpapers/photophase/widgets/PicturesView.java b/src/org/cyanogenmod/wallpapers/photophase/widgets/PicturesView.java
new file mode 100644
index 0000000..bb9332c
--- /dev/null
+++ b/src/org/cyanogenmod/wallpapers/photophase/widgets/PicturesView.java
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.cyanogenmod.wallpapers.photophase.widgets;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.os.AsyncTask.Status;
+import android.util.AttributeSet;
+import android.view.ViewGroup;
+import android.widget.HorizontalScrollView;
+import android.widget.ImageView;
+
+import org.cyanogenmod.wallpapers.photophase.R;
+import org.cyanogenmod.wallpapers.photophase.tasks.AsyncPictureLoaderTask;
+
+import java.io.File;
+import java.util.HashMap;
+import java.util.Iterator;
+
+/**
+ * A view that contains all the pictures of an album
+ */
+public class PicturesView extends HorizontalScrollView {
+
+    private HashMap<File, AsyncPictureLoaderTask> mTasks;
+
+    /**
+     * Constructor of <code>PicturesView</code>.
+     *
+     * @param context The current context
+     */
+    public PicturesView(Context context) {
+        super(context);
+        init();
+    }
+
+    /**
+     * Constructor of <code>PicturesView</code>.
+     *
+     * @param context The current context
+     * @param attrs The attributes of the XML tag that is inflating the view.
+     */
+    public PicturesView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    /**
+     * Constructor of <code>PicturesView</code>.
+     *
+     * @param context The current context
+     * @param attrs The attributes of the XML tag that is inflating the view.
+     * @param defStyle The default style to apply to this view. If 0, no style
+     *        will be applied (beyond what is included in the theme). This may
+     *        either be an attribute resource, whose value will be retrieved
+     *        from the current theme, or an explicit style resource.
+     */
+    public PicturesView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        init();
+    }
+
+    /**
+     * Method that initializes the structures of this class
+     */
+    private void init() {
+        mTasks = new HashMap<File, AsyncPictureLoaderTask>();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        cancelTasks();
+    }
+
+    /**
+     * Method that removes all tasks
+     */
+    public void cancelTasks() {
+        // Cancel all the pending task
+        Iterator<AsyncPictureLoaderTask> it = mTasks.values().iterator();
+        while (it.hasNext()) {
+            AsyncPictureLoaderTask task = it.next();
+            if (task.getStatus().compareTo(Status.PENDING) == 0) {
+                task.cancel(true);
+            }
+        }
+        mTasks.clear();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void onScrollChanged(int l, int t, int oldl, int oldt) {
+        super.onScrollChanged(l, t, oldl, oldt);
+        requestLoadOfPendingPictures();
+    }
+
+    /**
+     * Method that load in background all visible and pending pictures
+     */
+    public void requestLoadOfPendingPictures() {
+        // Get the visible rect
+        Rect r = new Rect();
+        getHitRect(r);
+
+        // Get all the image views
+        ViewGroup vg = (ViewGroup)getChildAt(0);
+        int count = vg.getChildCount();
+        for (int i = 0; i < count; i++) {
+            ViewGroup picView = (ViewGroup)vg.getChildAt(i);
+            File image = new File((String)picView.getTag());
+            if (picView.getLocalVisibleRect(r) && !mTasks.containsKey(image)) {
+                ImageView iv = (ImageView)picView.findViewById(R.id.picture_thumbnail);
+                AsyncPictureLoaderTask task = new AsyncPictureLoaderTask(getContext(), iv);
+                task.execute(image);
+                mTasks.put(image, task);
+            }
+        }
+    }
+}