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author | Owen Lin <owenlin@google.com> | 2011-08-17 22:07:43 +0800 |
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committer | Owen Lin <owenlin@google.com> | 2011-08-18 13:33:50 +0800 |
commit | f9a0a4306d589b4a4e20554fed512a603426bfa1 (patch) | |
tree | df0d55b351d5addf3c4149ce942292593b30d700 /src/com/android/gallery3d/ui/MeasureHelper.java | |
parent | a053a3179cfee3d2bb666eff5f4f03a96b092e04 (diff) | |
download | android_packages_apps_Gallery2-f9a0a4306d589b4a4e20554fed512a603426bfa1.tar.gz android_packages_apps_Gallery2-f9a0a4306d589b4a4e20554fed512a603426bfa1.tar.bz2 android_packages_apps_Gallery2-f9a0a4306d589b4a4e20554fed512a603426bfa1.zip |
Initial code for Gallery2.
fix: 5176434
Change-Id: I041e282b9c7b34ceb1db8b033be2b853bb3a992c
Diffstat (limited to 'src/com/android/gallery3d/ui/MeasureHelper.java')
-rw-r--r-- | src/com/android/gallery3d/ui/MeasureHelper.java | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/ui/MeasureHelper.java b/src/com/android/gallery3d/ui/MeasureHelper.java new file mode 100644 index 000000000..f65dc10b3 --- /dev/null +++ b/src/com/android/gallery3d/ui/MeasureHelper.java @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2010 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.ui; + +import android.graphics.Rect; +import android.view.View.MeasureSpec; + +class MeasureHelper { + + private static MeasureHelper sInstance = new MeasureHelper(null); + + private GLView mComponent; + private int mPreferredWidth; + private int mPreferredHeight; + + private MeasureHelper(GLView component) { + mComponent = component; + } + + public static MeasureHelper getInstance(GLView component) { + sInstance.mComponent = component; + return sInstance; + } + + public MeasureHelper setPreferredContentSize(int width, int height) { + mPreferredWidth = width; + mPreferredHeight = height; + return this; + } + + public void measure(int widthSpec, int heightSpec) { + Rect p = mComponent.getPaddings(); + setMeasuredSize( + getLength(widthSpec, mPreferredWidth + p.left + p.right), + getLength(heightSpec, mPreferredHeight + p.top + p.bottom)); + } + + private static int getLength(int measureSpec, int prefered) { + int specLength = MeasureSpec.getSize(measureSpec); + switch(MeasureSpec.getMode(measureSpec)) { + case MeasureSpec.EXACTLY: return specLength; + case MeasureSpec.AT_MOST: return Math.min(prefered, specLength); + default: return prefered; + } + } + + protected void setMeasuredSize(int width, int height) { + mComponent.setMeasuredSize(width, height); + } + +} |