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/*
* Copyright (C) 2008 The Android Open Source 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 com.android.launcher2;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.TextView;
import com.android.launcher.R;
import com.android.launcher2.FolderInfo.FolderListener;
/**
* An icon that can appear on in the workspace representing an {@link UserFolder}.
*/
public class FolderIcon extends FrameLayout implements DropTarget, FolderListener {
private Launcher mLauncher;
Folder mFolder;
FolderInfo mInfo;
private static final int NUM_ITEMS_IN_PREVIEW = 4;
private static final float ICON_ANGLE = 15f;
public FolderIcon(Context context, AttributeSet attrs) {
super(context, attrs);
}
public FolderIcon(Context context) {
super(context);
}
public boolean isDropEnabled() {
final ViewGroup cellLayoutChildren = (ViewGroup) getParent();
final ViewGroup cellLayout = (ViewGroup) cellLayoutChildren.getParent();
final Workspace workspace = (Workspace) cellLayout.getParent();
return !workspace.isSmall();
}
static FolderIcon fromXml(int resId, Launcher launcher, ViewGroup group,
FolderInfo folderInfo, IconCache iconCache) {
FolderIcon icon = (FolderIcon) LayoutInflater.from(launcher).inflate(resId, group, false);
final Resources resources = launcher.getResources();
Drawable d = iconCache.getFullResIcon(resources, R.drawable.folder_bg);
icon.setBackgroundDrawable(d);
icon.setTag(folderInfo);
icon.setOnClickListener(launcher);
icon.mInfo = folderInfo;
icon.mLauncher = launcher;
Folder folder = Folder.fromXml(launcher);
folder.setDragController(launcher.getDragController());
folder.setLauncher(launcher);
folder.bind(folderInfo);
icon.mFolder = folder;
folderInfo.addListener(icon);
return icon;
}
public boolean acceptDrop(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo) {
final ItemInfo item = (ItemInfo) dragInfo;
final int itemType = item.itemType;
return (itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION ||
itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT)
&& item.container != mInfo.id;
}
public void addItem(ShortcutInfo item) {
mInfo.add(item);
LauncherModel.addOrMoveItemInDatabase(mLauncher, item, mInfo.id, 0, item.cellX, item.cellY);
}
public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo) {
ShortcutInfo item;
if (dragInfo instanceof ApplicationInfo) {
// Came from all apps -- make a copy
item = ((ApplicationInfo)dragInfo).makeShortcut();
} else {
item = (ShortcutInfo)dragInfo;
}
item.cellX = -1;
item.cellY = -1;
addItem(item);
}
public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo) {
}
public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo) {
}
public void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo) {
}
@Override
public DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo) {
return null;
}
@Override
protected void onDraw(Canvas canvas) {
if (mFolder == null) return;
if (mFolder.getItemCount() == 0) return;
canvas.save();
TextView v = (TextView) mFolder.getItemAt(0);
Drawable d = v.getCompoundDrawables()[1];
canvas.translate( (getMeasuredWidth() - d.getIntrinsicWidth()) / 2,
(getMeasuredHeight() - d.getIntrinsicHeight()) / 2);
canvas.translate(d.getIntrinsicWidth() / 2, d.getIntrinsicHeight() / 2);
canvas.rotate(ICON_ANGLE);
canvas.translate(-d.getIntrinsicWidth() / 2, -d.getIntrinsicHeight() / 2);
for (int i = Math.max(0, mFolder.getItemCount() - NUM_ITEMS_IN_PREVIEW);
i < mFolder.getItemCount(); i++) {
v = (TextView) mFolder.getItemAt(i);
d = v.getCompoundDrawables()[1];
if (d != null) {
d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
d.draw(canvas);
}
canvas.translate(d.getIntrinsicWidth() / 2, d.getIntrinsicHeight() / 2);
canvas.rotate(-ICON_ANGLE);
canvas.translate(-d.getIntrinsicWidth() / 2, -d.getIntrinsicHeight() / 2);
}
canvas.restore();
}
public void onAdd(ShortcutInfo item) {
invalidate();
requestLayout();
}
public void onRemove(ShortcutInfo item) {
invalidate();
requestLayout();
}
}
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