/**
* Copyright 2013 Nils Assbeck, Guersel Ayaz and Michael Zoech
*
* 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 com.remoteyourcam.usb.view;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.app.FragmentTransaction;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Handler;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.GridView;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import com.remoteyourcam.usb.R;
import com.remoteyourcam.usb.ptp.Camera;
import com.remoteyourcam.usb.ptp.PtpConstants;
import com.remoteyourcam.usb.ptp.model.LiveViewData;
import com.remoteyourcam.usb.ptp.model.ObjectInfo;
import com.remoteyourcam.usb.view.GalleryAdapter.ViewHolder;
public class GalleryFragment extends SessionFragment implements Camera.StorageInfoListener,
Camera.RetrieveImageInfoListener, ListView.OnScrollListener,
OnItemClickListener {
private final Handler handler = new Handler();
private Spinner storageSpinner;
private StorageAdapter storageAdapter;
private GridView galleryView;
private GalleryAdapter galleryAdapter;
private CheckBox orderCheckbox;
SimpleDateFormat formatParser;
boolean gotThumbWidth;
private int currentScrollState;
private TextView emptyView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
formatParser = new SimpleDateFormat("yyyyMMdd'T'HHmmss.S");
currentScrollState = OnScrollListener.SCROLL_STATE_IDLE;
View view = inflater.inflate(R.layout.gallery_frag, container, false);
storageSpinner = (Spinner) view.findViewById(R.id.storage_spinner);
storageAdapter = new StorageAdapter(getActivity());
storageSpinner.setAdapter(storageAdapter);
emptyView = (TextView) view.findViewById(android.R.id.empty);
emptyView.setText(getString(R.string.gallery_loading));
galleryView = (GridView) view.findViewById(android.R.id.list);
galleryAdapter = new GalleryAdapter(getActivity(), this);
galleryAdapter.setReverseOrder(getSettings().isGalleryOrderReversed());
galleryView.setAdapter(galleryAdapter);
galleryView.setOnScrollListener(this);
galleryView.setEmptyView(emptyView);
galleryView.setOnItemClickListener(this);
orderCheckbox = (CheckBox) view.findViewById(R.id.reverve_order_checkbox);
orderCheckbox.setChecked(getSettings().isGalleryOrderReversed());
orderCheckbox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
onReverseOrderStateChanged(isChecked);
}
});
enableUi(false);
((SessionActivity) getActivity()).setSessionView(this);
return view;
}
@Override
public void onStart() {
super.onStart();
if (camera() != null) {
cameraStarted(camera());
}
}
@Override
public void onStop() {
super.onStop();
getSettings().setGalleryOrderReversed(orderCheckbox.isChecked());
}
protected void onReverseOrderStateChanged(boolean isChecked) {
galleryAdapter.setReverseOrder(isChecked);
}
@Override
public void enableUi(boolean enabled) {
storageSpinner.setEnabled(enabled);
galleryView.setEnabled(enabled);
orderCheckbox.setEnabled(enabled);
if (!enabled) {
emptyView.setText(getString(R.string.gallery_no_camera_connected));
}
}
@Override
public void cameraStarted(Camera camera) {
enableUi(true);
camera.retrieveStorages(this);
emptyView.setText(getString(R.string.gallery_loading));
}
@Override
public void cameraStopped(Camera camera) {
enableUi(false);
galleryAdapter.setHandles(new int[0]);
}
@Override
public void propertyChanged(int property, int value) {
}
@Override
public void propertyDescChanged(int property, int[] values) {
}
@Override
public void setCaptureBtnText(String text) {
}
@Override
public void focusStarted() {
}
@Override
public void focusEnded(boolean hasFocused) {
}
@Override
public void liveViewStarted() {
}
@Override
public void liveViewStopped() {
}
@Override
public void liveViewData(LiveViewData data) {
}
@Override
public void capturedPictureReceived(int objectHandle, String filename, Bitmap thumbnail, Bitmap bitmap) {
}
@Override
public void objectAdded(int handle, int format) {
}
@Override
public void onStorageFound(final int handle, final String label) {
handler.post(new Runnable() {
@Override
public void run() {
if (!inStart) {
return;
}
storageAdapter.add(handle, label);
}
});
}
@Override
public void onAllStoragesFound() {
handler.post(new Runnable() {
@Override
public void run() {
if (!inStart || camera() == null) {
return;
}
if (storageAdapter.getCount() == 0) {
emptyView.setText(getString(R.string.gallery_empty));
return;
} else if (storageAdapter.getCount() == 1) {
storageSpinner.setEnabled(false);
}
storageSpinner.setSelection(0);
camera().retrieveImageHandles(GalleryFragment.this, storageAdapter.getItemHandle(0),
PtpConstants.ObjectFormat.EXIF_JPEG);
}
});
}
@Override
public void onImageHandlesRetrieved(final int[] handles) {
handler.post(new Runnable() {
@Override
public void run() {
if (!inStart) {
return;
}
if (handles.length == 0) {
emptyView.setText(getString(R.string.gallery_empty));
}
galleryAdapter.setHandles(handles);
}
});
}
@Override
public void onImageInfoRetrieved(final int objectHandle, final ObjectInfo objectInfo, final Bitmap thumbnail) {
handler.post(new Runnable() {
@Override
public void run() {
Camera camera = camera();
if (!inStart || camera == null) {
return;
}
if (!gotThumbWidth && thumbnail != null) {
gotThumbWidth = true;
galleryAdapter.setThumbDimensions(thumbnail.getWidth(), thumbnail.getHeight());
}
for (int i = 0; i < galleryView.getChildCount(); ++i) {
View child = galleryView.getChildAt(i);
if (child == null) {
continue;
}
GalleryAdapter.ViewHolder holder = (GalleryAdapter.ViewHolder) child.getTag();
if (holder.objectHandle == objectHandle) {
holder.image1.setImageBitmap(thumbnail);
holder.filename.setText(objectInfo.filename);
holder.dimension.setText(String.format("%dx%d", objectInfo.imagePixWidth,
objectInfo.imagePixHeight));
if (!"".equals(objectInfo.captureDate)) {
try {
Date date = formatParser.parse(objectInfo.captureDate);
holder.date.setText(date.toLocaleString());
} catch (ParseException e) {
}
}
break;
}
}
}
});
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
currentScrollState = scrollState;
switch (scrollState) {
case ListView.OnScrollListener.SCROLL_STATE_IDLE: {
Camera camera = camera();
if (!inStart || camera == null) {
break;
}
for (int i = 0; i < galleryView.getChildCount(); ++i) {
View child = view.getChildAt(i);
if (child == null) {
continue;
}
GalleryAdapter.ViewHolder holder = (GalleryAdapter.ViewHolder) child.getTag();
if (!holder.done) {
holder.done = true;
camera.retrieveImageInfo(this, holder.objectHandle);
}
}
break;
}
}
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
}
public void onNewListItemCreated(ViewHolder holder) {
if (currentScrollState == SCROLL_STATE_IDLE) {
Camera camera = camera();
if (camera == null) {
return;
}
holder.done = true;
camera.retrieveImageInfo(this, holder.objectHandle);
}
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.fragment_container, PictureFragment.newInstance(galleryAdapter.getItemHandle(position)), null);
ft.addToBackStack(null);
ft.commit();
}
}
