diff options
Diffstat (limited to 'src/com/android/gallery3d/filtershow/CenteredLinearLayout.java')
-rw-r--r-- | src/com/android/gallery3d/filtershow/CenteredLinearLayout.java | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/CenteredLinearLayout.java b/src/com/android/gallery3d/filtershow/CenteredLinearLayout.java new file mode 100644 index 000000000..bc9342d6f --- /dev/null +++ b/src/com/android/gallery3d/filtershow/CenteredLinearLayout.java @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2012 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.gallery3d.filtershow; + +import android.content.Context; +import android.content.res.Resources; +import android.content.res.TypedArray; +import android.util.AttributeSet; +import android.util.TypedValue; +import android.widget.LinearLayout; + +import com.android.gallery3d.R; + +public class CenteredLinearLayout extends LinearLayout { + private final int mMaxWidth; + + public CenteredLinearLayout(Context context, AttributeSet attrs) { + super(context, attrs); + TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.CenteredLinearLayout); + mMaxWidth = a.getDimensionPixelSize(R.styleable.CenteredLinearLayout_max_width, 0); + } + + @Override + protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { + int parentWidth = MeasureSpec.getSize(widthMeasureSpec); + int parentHeight = MeasureSpec.getSize(heightMeasureSpec); + Resources r = getContext().getResources(); + float value = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, parentWidth, + r.getDisplayMetrics()); + if (mMaxWidth > 0 && parentWidth > mMaxWidth) { + int measureMode = MeasureSpec.getMode(widthMeasureSpec); + widthMeasureSpec = MeasureSpec.makeMeasureSpec(mMaxWidth, measureMode); + } + super.onMeasure(widthMeasureSpec, heightMeasureSpec); + } + +} |