com.richtodd.android.quiltdesign.block.BlockContainer.java Source code

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Here is the source code for com.richtodd.android.quiltdesign.block.BlockContainer.java

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/* Copyright (c) 2013 Richard G. Todd.
 * Licensed under the terms of the GNU General Public License (GPL) Version 3.0.
 */

package com.richtodd.android.quiltdesign.block;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.json.JSONException;
import org.json.JSONObject;

import android.graphics.Bitmap;

import com.richtodd.android.repository.RepositoryContainerProvider;
import com.richtodd.android.repository.RepositoryException;
import com.richtodd.android.repository.RepositoryObjectProvider;

public class BlockContainer {

    //
    // Fields
    //

    private final static QuiltDesignThumbnailProvider s_thumbnailProvider = new QuiltDesignThumbnailProvider();

    private RepositoryContainerProvider m_provider;

    //
    // Public
    //

    public BlockContainer(RepositoryContainerProvider provider) {
        m_provider = provider;
    }

    public int getCount() throws RepositoryException {
        return m_provider.getCount();
    }

    public List<BlockContainerEntry> getEntries(boolean loadThumbnails) throws RepositoryException {
        ArrayList<BlockContainerEntry> m_entries = new ArrayList<BlockContainerEntry>();

        for (RepositoryObjectProvider objectProvider : m_provider.getObjects(loadThumbnails)) {
            BlockContainerEntry entry = new BlockContainerEntry(objectProvider.getObjectName(),
                    objectProvider.getLastChangedDate(), objectProvider.getThumbnail());
            m_entries.add(entry);
        }

        Collections.sort(m_entries);

        return m_entries;
    }

    public PaperPiecedBlock loadPaperPiecedBlock(String blockName) throws RepositoryException {
        try {
            RepositoryObjectProvider objectProvider = m_provider.getObject(blockName, false);
            PaperPiecedBlock block = PaperPiecedBlock.createFromJSONObject(objectProvider.getObject());
            return block;
        } catch (JSONException ex) {
            throw new RepositoryException(ex);
        }
    }

    public void savePaperPiecedBlock(String blockName, PaperPiecedBlock block, String saveAsBlockName)
            throws RepositoryException {
        try {
            m_provider.deleteObject(blockName);

            if (saveAsBlockName != null) {
                blockName = saveAsBlockName;
            }

            JSONObject jsonBlock = block.createJSONObject();
            Bitmap thumbnail = s_thumbnailProvider.getThumbnail(block);

            m_provider.createObject(blockName, jsonBlock, thumbnail);

        } catch (JSONException ex) {
            throw new RepositoryException(ex);
        }
    }

    public void deleteBlock(String blockName) throws RepositoryException {
        m_provider.deleteObject(blockName);
    }

    public boolean blockExists(String blockName) throws RepositoryException {
        return m_provider.objectExists(blockName);
    }

    public String getNewBlockName() throws RepositoryException {
        for (int idx = 1; idx < 1000; ++idx) {
            String blockName = "Block " + idx;
            if (!m_provider.objectExists(blockName)) {
                return blockName;
            }
        }

        return null;
    }
}