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/*
* Copyright (C) 2011 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.inputmethod.latin.utils;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.MarginLayoutParams;
import android.view.Window;
import android.view.WindowManager;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
public final class ViewLayoutUtils {
private ViewLayoutUtils() {
// This utility class is not publicly instantiable.
}
public static MarginLayoutParams newLayoutParam(final ViewGroup placer, final int width,
final int height) {
if (placer instanceof FrameLayout) {
return new FrameLayout.LayoutParams(width, height);
} else if (placer instanceof RelativeLayout) {
return new RelativeLayout.LayoutParams(width, height);
} else if (placer == null) {
throw new NullPointerException("placer is null");
} else {
throw new IllegalArgumentException("placer is neither FrameLayout nor RelativeLayout: "
+ placer.getClass().getName());
}
}
public static void placeViewAt(final View view, final int x, final int y, final int w,
final int h) {
final ViewGroup.LayoutParams lp = view.getLayoutParams();
if (lp instanceof MarginLayoutParams) {
final MarginLayoutParams marginLayoutParams = (MarginLayoutParams)lp;
marginLayoutParams.width = w;
marginLayoutParams.height = h;
marginLayoutParams.setMargins(x, y, 0, 0);
}
}
public static void updateLayoutHeightOf(final Window window, final int layoutHeight) {
final WindowManager.LayoutParams params = window.getAttributes();
if (params != null && params.height != layoutHeight) {
params.height = layoutHeight;
window.setAttributes(params);
}
}
public static void updateLayoutHeightOf(final View view, final int layoutHeight) {
final ViewGroup.LayoutParams params = view.getLayoutParams();
if (params != null && params.height != layoutHeight) {
params.height = layoutHeight;
view.setLayoutParams(params);
}
}
public static void updateLayoutGravityOf(final View view, final int layoutGravity) {
final ViewGroup.LayoutParams lp = view.getLayoutParams();
if (lp instanceof LinearLayout.LayoutParams) {
final LinearLayout.LayoutParams params = (LinearLayout.LayoutParams)lp;
if (params.gravity != layoutGravity) {
params.gravity = layoutGravity;
view.setLayoutParams(params);
}
} else if (lp instanceof FrameLayout.LayoutParams) {
final FrameLayout.LayoutParams params = (FrameLayout.LayoutParams)lp;
if (params.gravity != layoutGravity) {
params.gravity = layoutGravity;
view.setLayoutParams(params);
}
} else {
throw new IllegalArgumentException("Layout parameter doesn't have gravity: "
+ lp.getClass().getName());
}
}
}
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