Sunny Goyal
add3d8322d
The old folder preview and animation relied on creating bitmaps for transition. As we move to hardware bitmaps, creating custom bitmaps which rely on icon bitmaps would be costly (hardware bitmaps are immutable and cannot be drawn on a software canvas). Bug: 35428783 Change-Id: I39869ed44feb6a886985ad15775bc1ab55565727
75 lines
2.6 KiB
Java
75 lines
2.6 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.folder;
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import com.android.launcher3.FolderInfo;
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import com.android.launcher3.InvariantDeviceProfile;
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import static com.android.launcher3.folder.ClippedFolderIconLayoutRule.MAX_NUM_ITEMS_IN_PREVIEW;
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/**
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* Verifies whether an item in a Folder is displayed in the FolderIcon preview.
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*/
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public class FolderIconPreviewVerifier {
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private final int mMaxGridCountX;
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private final int mMaxGridCountY;
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private final int mMaxItemsPerPage;
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private final int[] mGridSize = new int[2];
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private int mGridCountX;
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private boolean mDisplayingUpperLeftQuadrant = false;
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public FolderIconPreviewVerifier(InvariantDeviceProfile profile) {
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mMaxGridCountX = profile.numFolderColumns;
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mMaxGridCountY = profile.numFolderRows;
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mMaxItemsPerPage = mMaxGridCountX * mMaxGridCountY;
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}
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public void setFolderInfo(FolderInfo info) {
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int numItemsInFolder = info.contents.size();
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FolderPagedView.calculateGridSize(numItemsInFolder, 0, 0, mMaxGridCountX,
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mMaxGridCountY, mMaxItemsPerPage, mGridSize);
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mGridCountX = mGridSize[0];
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mDisplayingUpperLeftQuadrant = numItemsInFolder > MAX_NUM_ITEMS_IN_PREVIEW;
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}
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/**
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* Returns whether the item with {@param rank} is in the default Folder icon preview.
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*/
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public boolean isItemInPreview(int rank) {
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return isItemInPreview(0, rank);
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}
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/**
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* @param page The page the item is on.
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* @param rank The rank of the item.
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* @return True iff the icon is in the 2x2 upper left quadrant of the Folder.
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*/
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public boolean isItemInPreview(int page, int rank) {
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// First page items are laid out such that the first 4 items are always in the upper
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// left quadrant. For all other pages, we need to check the row and col.
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if (page > 0 || mDisplayingUpperLeftQuadrant) {
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int col = rank % mGridCountX;
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int row = rank / mGridCountX;
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return col < 2 && row < 2;
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}
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return rank < MAX_NUM_ITEMS_IN_PREVIEW;
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}
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}
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