src/com/android/gallery3d/filtershow/EditorPlaceHolder.java

package com.android.gallery3d.filtershow;

import android.view.View;
import android.view.ViewParent;
import android.widget.FrameLayout;

import com.android.gallery3d.filtershow.cache.ImageLoader;
import com.android.gallery3d.filtershow.editors.Editor;
import com.android.gallery3d.filtershow.imageshow.ImageShow;

import java.util.HashMap;
import java.util.Vector;

public class EditorPlaceHolder {
    private static final String LOGTAG = "EditorPlaceHolder";

    private FilterShowActivity mActivity = null;
    private FrameLayout mContainer = null;
    private HashMap<Integer, Editor> mEditors = new HashMap<Integer, Editor>();
    private Vector<ImageShow> mOldViews = new Vector<ImageShow>();
    private ImageLoader mImageLoader = null;

    public EditorPlaceHolder(FilterShowActivity activity) {
        mActivity = activity;
    }

    public void setContainer(FrameLayout container) {
        mContainer = container;
    }

    public void addEditor(Editor c) {
        mEditors.put(c.getID(), c);
    }

    public boolean contains(int type) {
        if (mEditors.get(type) != null) {
            return true;
        }
        return false;
    }

    public Editor showEditor(int type) {
        Editor editor = mEditors.get(type);
        if (editor == null) {
            return null;
        }

        try {
            editor.createEditor(mActivity, mContainer);
            editor.setImageLoader(mImageLoader);
            mContainer.setVisibility(View.VISIBLE);
            mContainer.removeAllViews();
            View eview = editor.getTopLevelView();
            ViewParent parent = eview.getParent();

            if (parent != null && parent instanceof FrameLayout) {
                ((FrameLayout) parent).removeAllViews();
            }

            mContainer.addView(eview);
            hideOldViews();
            editor.setVisibility(View.VISIBLE);
            return editor;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public void setOldViews(Vector<ImageShow> views) {
        mOldViews = views;
    }

    public void hide() {
        mContainer.setVisibility(View.GONE);
    }

    public void hideOldViews() {
        for (View view : mOldViews) {
            view.setVisibility(View.GONE);
        }
    }

    public void setImageLoader(ImageLoader imageLoader) {
        mImageLoader = imageLoader;
    }

    public Editor getEditor(int editorId) {
        return mEditors.get(editorId);
    }

}