| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * 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.intellij.openapi.editor; |
| |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class ClipboardTextPerCaretSplitter { |
| @NotNull |
| public List<String> split(@NotNull String input, @Nullable CaretStateTransferableData caretData, int caretCount) { |
| if (caretCount <= 0) { |
| throw new IllegalArgumentException("Caret count must be positive"); |
| } |
| if (caretCount == 1) { |
| return Collections.singletonList(input); |
| } |
| List<String> result = new ArrayList<String>(caretCount); |
| int sourceCaretCount = caretData == null ? -1 : caretData.startOffsets.length; |
| String[] lines = sourceCaretCount == 1 || sourceCaretCount == caretCount ? null : input.split("\n", -1); |
| for (int i = 0; i < caretCount; i++) { |
| if (sourceCaretCount == 1) { |
| result.add(input); |
| } |
| else if (sourceCaretCount == caretCount) { |
| //noinspection ConstantConditions |
| result.add(new String(input.substring(caretData.startOffsets[i], caretData.endOffsets[i]))); |
| } |
| else if (lines.length == 0) { |
| result.add(""); |
| } |
| else if (lines.length == 1) { |
| result.add(lines[0]); |
| } |
| else if (lines.length % caretCount == 0) { |
| StringBuilder b = new StringBuilder(); |
| int linesPerSegment = lines.length / caretCount; |
| for (int j = 0; j < linesPerSegment; j++) { |
| if (j > 0) { |
| b.append('\n'); |
| } |
| b.append(lines[i * linesPerSegment + j]); |
| } |
| result.add(b.toString()); |
| } |
| else { |
| result.add(i < lines.length ? lines[i] : ""); |
| } |
| } |
| return result; |
| } |
| } |