| /* |
| * Copyright (C) 2015 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 androidx.databinding.adapters; |
| |
| import androidx.databinding.BindingAdapter; |
| import androidx.annotation.RestrictTo; |
| import android.util.SparseBooleanArray; |
| import android.widget.TableLayout; |
| |
| import java.util.regex.Pattern; |
| |
| /** |
| * @hide |
| */ |
| @RestrictTo(RestrictTo.Scope.LIBRARY) |
| public class TableLayoutBindingAdapter { |
| |
| private static Pattern sColumnPattern = Pattern.compile("\\s*,\\s*"); |
| |
| private static final int MAX_COLUMNS = 20; |
| |
| @BindingAdapter({"android:collapseColumns"}) |
| public static void setCollapseColumns(TableLayout view, CharSequence columnsStr) { |
| SparseBooleanArray columns = parseColumns(columnsStr); |
| for (int i = 0; i < MAX_COLUMNS; i++) { |
| boolean isCollapsed = columns.get(i, false); |
| if (isCollapsed != view.isColumnCollapsed(i)) { |
| view.setColumnCollapsed(i, isCollapsed); |
| } |
| } |
| } |
| |
| @BindingAdapter({"android:shrinkColumns"}) |
| public static void setShrinkColumns(TableLayout view, CharSequence columnsStr) { |
| if (columnsStr != null && columnsStr.length() > 0 && columnsStr.charAt(0) == '*') { |
| view.setShrinkAllColumns(true); |
| } else { |
| view.setShrinkAllColumns(false); |
| SparseBooleanArray columns = parseColumns(columnsStr); |
| int columnCount = columns.size(); |
| for (int i = 0; i < columnCount; i++) { |
| int column = columns.keyAt(i); |
| boolean shrinkable = columns.valueAt(i); |
| if (shrinkable) { |
| view.setColumnShrinkable(column, shrinkable); |
| } |
| } |
| } |
| } |
| |
| @BindingAdapter({"android:stretchColumns"}) |
| public static void setStretchColumns(TableLayout view, CharSequence columnsStr) { |
| if (columnsStr != null && columnsStr.length() > 0 && columnsStr.charAt(0) == '*') { |
| view.setStretchAllColumns(true); |
| } else { |
| view.setStretchAllColumns(false); |
| SparseBooleanArray columns = parseColumns(columnsStr); |
| int columnCount = columns.size(); |
| for (int i = 0; i < columnCount; i++) { |
| int column = columns.keyAt(i); |
| boolean stretchable = columns.valueAt(i); |
| if (stretchable) { |
| view.setColumnStretchable(column, stretchable); |
| } |
| } |
| } |
| } |
| |
| private static SparseBooleanArray parseColumns(CharSequence sequence) { |
| SparseBooleanArray columns = new SparseBooleanArray(); |
| if (sequence == null) { |
| return columns; |
| } |
| String[] columnDefs = sColumnPattern.split(sequence); |
| |
| for (String columnIdentifier : columnDefs) { |
| try { |
| int columnIndex = Integer.parseInt(columnIdentifier); |
| // only valid, i.e. positive, columns indexes are handled |
| if (columnIndex >= 0) { |
| // putting true in this sparse array indicates that the |
| // column index was defined in the XML file |
| columns.put(columnIndex, true); |
| } |
| } catch (NumberFormatException e) { |
| // we just ignore columns that don't exist |
| } |
| } |
| |
| return columns; |
| } |
| } |