PreeditEvent.java

net.minecraft.client.input.PreeditEvent

信息

• 全限定名：net.minecraft.client.input.PreeditEvent
• 类型：public record
• 包：net.minecraft.client.input
• 源码路径：src/main/java/net/minecraft/client/input/PreeditEvent.java
• 起始行号：L17
• 职责：

  TODO

字段/常量

• 无

内部类/嵌套类型

• 无

构造器

public PreeditEvent(String fullText, int caretPosition, List<String> blocks, int focusedBlock) @ L18

• 构造器名：PreeditEvent
• 源码定位：L18
• 修饰符：public

参数:

• fullText: String
• caretPosition: int
• blocks: List
• focusedBlock: int

说明:

TODO

方法

下面的方法块按源码顺序生成。

public static PreeditEvent createFromCallback(int preeditSize, long preeditPtr, int blockCount, long blockSizesPtr, int focusedBlock, int caret) @ L26

• 方法名：createFromCallback
• 源码定位：L26
• 返回类型：PreeditEvent
• 修饰符：public static

参数:

• preeditSize: int
• preeditPtr: long
• blockCount: int
• blockSizesPtr: long
• focusedBlock: int
• caret: int

说明:

TODO

private static int[] readIntBuffer(int size, long ptr) @ L63

• 方法名：readIntBuffer
• 源码定位：L63
• 返回类型：int[]
• 修饰符：private static

参数:

• size: int
• ptr: long

说明:

TODO

public MutableComponent toFormattedText(Style focusedStyle) @ L70

• 方法名：toFormattedText
• 源码定位：L70
• 返回类型：MutableComponent
• 修饰符：public

参数:

• focusedStyle: Style

说明:

TODO

代码

@OnlyIn(Dist.CLIENT)
public record PreeditEvent(String fullText, int caretPosition, List<String> blocks, int focusedBlock) {
    public PreeditEvent(String fullText, int caretPosition, List<String> blocks, int focusedBlock) {
        Preconditions.checkElementIndex(focusedBlock, blocks.size());
        this.fullText = fullText;
        this.caretPosition = caretPosition;
        this.blocks = blocks;
        this.focusedBlock = focusedBlock;
    }
 
    public static @Nullable PreeditEvent createFromCallback(int preeditSize, long preeditPtr, int blockCount, long blockSizesPtr, int focusedBlock, int caret) {
        if (preeditSize == 0) {
            return null;
        } else {
            int[] codepoints = readIntBuffer(preeditSize, preeditPtr);
            int[] blockSizes = readIntBuffer(blockCount, blockSizesPtr);
            StringBuilder fullText = new StringBuilder();
            Builder<String> blocks = ImmutableList.builder();
            int offset = 0;
            int convertedCaret = 0;
 
            for (int blockSize : blockSizes) {
                StringBuilder blockBuilder = new StringBuilder();
 
                for (int i = 0; i < blockSize; i++) {
                    int codepoint = codepoints[offset];
                    if (offset == caret) {
                        convertedCaret = fullText.length() + blockBuilder.length();
                    }
 
                    blockBuilder.appendCodePoint(codepoint);
                    offset++;
                }
 
                String block = blockBuilder.toString();
                blocks.add(block);
                fullText.append(block);
            }
 
            if (offset == caret) {
                convertedCaret = fullText.length();
            }
 
            return new PreeditEvent(fullText.toString(), convertedCaret, blocks.build(), focusedBlock);
        }
    }
 
    private static int[] readIntBuffer(int size, long ptr) {
        IntBuffer buffer = MemoryUtil.memIntBuffer(ptr, size);
        int[] result = new int[size];
        buffer.get(result);
        return result;
    }
 
    public MutableComponent toFormattedText(Style focusedStyle) {
        int blockCount = this.blocks.size();
        if (blockCount == 1) {
            return Component.literal(this.blocks.getFirst()).withStyle(focusedStyle);
        } else {
            MutableComponent result = Component.empty();
 
            for (int i = 0; i < blockCount; i++) {
                MutableComponent part = Component.literal(this.blocks.get(i));
                if (i == this.focusedBlock) {
                    part.withStyle(focusedStyle);
                }
 
                result.append(part);
            }
 
            return result;
        }
    }
}

引用的其他类

• Component

  • 引用位置: 方法调用
  • 关联成员: Component.empty(), Component.literal()

• MutableComponent

  • 引用位置: 返回值

• Style

  • 引用位置: 参数