1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.inputmethod.keyboard;
18
19import android.view.View;
20import android.view.ViewGroup;
21import android.view.ViewGroup.MarginLayoutParams;
22import android.widget.FrameLayout;
23import android.widget.RelativeLayout;
24
25public final class ViewLayoutUtils {
26    private ViewLayoutUtils() {
27        // This utility class is not publicly instantiable.
28    }
29
30    public static MarginLayoutParams newLayoutParam(ViewGroup placer, int width, int height) {
31        if (placer instanceof FrameLayout) {
32            return new FrameLayout.LayoutParams(width, height);
33        } else if (placer instanceof RelativeLayout) {
34            return new RelativeLayout.LayoutParams(width, height);
35        } else if (placer == null) {
36            throw new NullPointerException("placer is null");
37        } else {
38            throw new IllegalArgumentException("placer is neither FrameLayout nor RelativeLayout: "
39                    + placer.getClass().getName());
40        }
41    }
42
43    public static void placeViewAt(View view, int x, int y, int w, int h) {
44        final ViewGroup.LayoutParams lp = view.getLayoutParams();
45        if (lp instanceof MarginLayoutParams) {
46            final MarginLayoutParams marginLayoutParams = (MarginLayoutParams)lp;
47            marginLayoutParams.width = w;
48            marginLayoutParams.height = h;
49            marginLayoutParams.setMargins(x, y, 0, 0);
50        }
51    }
52}
53