BookEditScreen.java

net.minecraft.client.gui.screens.inventory.BookEditScreen

信息

• 全限定名：net.minecraft.client.gui.screens.inventory.BookEditScreen
• 类型：public class
• 包：net.minecraft.client.gui.screens.inventory
• 源码路径：src/main/java/net/minecraft/client/gui/screens/inventory/BookEditScreen.java
• 起始行号：L29
• 继承：Screen
• 职责：

  TODO

字段/常量

• TEXT_WIDTH

  • 类型: int
  • 修饰符: public static final
  • 源码定位: L30
  • 说明:

    TODO

• TEXT_HEIGHT

  • 类型: int
  • 修饰符: public static final
  • 源码定位: L31
  • 说明:

    TODO

• IMAGE_WIDTH

  • 类型: int
  • 修饰符: public static final
  • 源码定位: L32
  • 说明:

    TODO

• IMAGE_HEIGHT

  • 类型: int
  • 修饰符: public static final
  • 源码定位: L33
  • 说明:

    TODO

• BACKGROUND_TEXTURE_WIDTH

  • 类型: int
  • 修饰符: public static final
  • 源码定位: L34
  • 说明:

    TODO

• BACKGROUND_TEXTURE_HEIGHT

  • 类型: int
  • 修饰符: public static final
  • 源码定位: L35
  • 说明:

    TODO

• MENU_BUTTON_MARGIN

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L36
  • 说明:

    TODO

• MENU_BUTTON_SIZE

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L37
  • 说明:

    TODO

• PAGE_BUTTON_Y

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L38
  • 说明:

    TODO

• PAGE_BACK_BUTTON_X

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L39
  • 说明:

    TODO

• PAGE_FORWARD_BUTTON_X

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L40
  • 说明:

    TODO

• PAGE_INDICATOR_TEXT_Y_OFFSET

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L41
  • 说明:

    TODO

• PAGE_INDICATOR_X_OFFSET

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L42
  • 说明:

    TODO

• TITLE

  • 类型: Component
  • 修饰符: private static final
  • 源码定位: L43
  • 说明:

    TODO

• SIGN_BOOK_LABEL

  • 类型: Component
  • 修饰符: private static final
  • 源码定位: L44
  • 说明:

    TODO

• owner

  • 类型: Player
  • 修饰符: private final
  • 源码定位: L45
  • 说明:

    TODO

• book

  • 类型: ItemStack
  • 修饰符: private final
  • 源码定位: L46
  • 说明:

    TODO

• signScreen

  • 类型: BookSignScreen
  • 修饰符: private final
  • 源码定位: L47
  • 说明:

    TODO

• currentPage

  • 类型: int
  • 修饰符: private
  • 源码定位: L48
  • 说明:

    TODO

• pages

  • 类型: List<String>
  • 修饰符: private final
  • 源码定位: L49
  • 说明:

    TODO

• forwardButton

  • 类型: PageButton
  • 修饰符: private
  • 源码定位: L50
  • 说明:

    TODO

• backButton

  • 类型: PageButton
  • 修饰符: private
  • 源码定位: L51
  • 说明:

    TODO

• hand

  • 类型: InteractionHand
  • 修饰符: private final
  • 源码定位: L52
  • 说明:

    TODO

• numberOfPages

  • 类型: Component
  • 修饰符: private
  • 源码定位: L53
  • 说明:

    TODO

• page

  • 类型: MultiLineEditBox
  • 修饰符: private
  • 源码定位: L54
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

public BookEditScreen(Player owner, ItemStack book, InteractionHand hand, WritableBookContent content) @ L56

• 构造器名：BookEditScreen
• 源码定位：L56
• 修饰符：public

参数:

• owner: Player
• book: ItemStack
• hand: InteractionHand
• content: WritableBookContent

说明:

TODO

方法

下面的方法块按源码顺序生成。

private int getNumPages() @ L69

• 方法名：getNumPages
• 源码定位：L69
• 返回类型：int
• 修饰符：private

参数:

• 无

说明:

TODO

protected void init() @ L73

• 方法名：init
• 源码定位：L73
• 返回类型：void
• 修饰符：protected

参数:

• 无

说明:

TODO

private int backgroundLeft() @ L108

• 方法名：backgroundLeft
• 源码定位：L108
• 返回类型：int
• 修饰符：private

参数:

• 无

说明:

TODO

private int backgroundTop() @ L112

• 方法名：backgroundTop
• 源码定位：L112
• 返回类型：int
• 修饰符：private

参数:

• 无

说明:

TODO

private int menuControlsTop() @ L116

• 方法名：menuControlsTop
• 源码定位：L116
• 返回类型：int
• 修饰符：private

参数:

• 无

说明:

TODO

protected void setInitialFocus() @ L120

• 方法名：setInitialFocus
• 源码定位：L120
• 返回类型：void
• 修饰符：protected

参数:

• 无

说明:

TODO

public Component getNarrationMessage() @ L125

• 方法名：getNarrationMessage
• 源码定位：L125
• 返回类型：Component
• 修饰符：public

参数:

• 无

说明:

TODO

private Component getPageNumberMessage() @ L130

• 方法名：getPageNumberMessage
• 源码定位：L130
• 返回类型：Component
• 修饰符：private

参数:

• 无

说明:

TODO

private void pageBack() @ L134

• 方法名：pageBack
• 源码定位：L134
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

private void pageForward() @ L143

• 方法名：pageForward
• 源码定位：L143
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

private void updatePageContent() @ L157

• 方法名：updatePageContent
• 源码定位：L157
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

private void updateButtonVisibility() @ L162

• 方法名：updateButtonVisibility
• 源码定位：L162
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

private void eraseEmptyTrailingPages() @ L166

• 方法名：eraseEmptyTrailingPages
• 源码定位：L166
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

private void saveChanges() @ L174

• 方法名：saveChanges
• 源码定位：L174
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

private void updateLocalCopy() @ L181

• 方法名：updateLocalCopy
• 源码定位：L181
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

private void appendPageToBook() @ L185

• 方法名：appendPageToBook
• 源码定位：L185
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

public boolean isInGameUi() @ L191

• 方法名：isInGameUi
• 源码定位：L191
• 返回类型：boolean
• 修饰符：public

参数:

• 无

说明:

TODO

public boolean keyPressed(KeyEvent event) @ L196

• 方法名：keyPressed
• 源码定位：L196
• 返回类型：boolean
• 修饰符：public

参数:

• event: KeyEvent

说明:

TODO

public void extractRenderState(GuiGraphicsExtractor graphics, int mouseX, int mouseY, float a) @ L210

• 方法名：extractRenderState
• 源码定位：L210
• 返回类型：void
• 修饰符：public

参数:

• graphics: GuiGraphicsExtractor
• mouseX: int
• mouseY: int
• a: float

说明:

TODO

private void visitText(ActiveTextCollector collector) @ L216

• 方法名：visitText
• 源码定位：L216
• 返回类型：void
• 修饰符：private

参数:

• collector: ActiveTextCollector

说明:

TODO

public void extractBackground(GuiGraphicsExtractor graphics, int mouseX, int mouseY, float a) @ L222

• 方法名：extractBackground
• 源码定位：L222
• 返回类型：void
• 修饰符：public

参数:

• graphics: GuiGraphicsExtractor
• mouseX: int
• mouseY: int
• a: float

说明:

TODO

代码

@OnlyIn(Dist.CLIENT)
public class BookEditScreen extends Screen {
    public static final int TEXT_WIDTH = 114;
    public static final int TEXT_HEIGHT = 126;
    public static final int IMAGE_WIDTH = 192;
    public static final int IMAGE_HEIGHT = 192;
    public static final int BACKGROUND_TEXTURE_WIDTH = 256;
    public static final int BACKGROUND_TEXTURE_HEIGHT = 256;
    private static final int MENU_BUTTON_MARGIN = 4;
    private static final int MENU_BUTTON_SIZE = 98;
    private static final int PAGE_BUTTON_Y = 157;
    private static final int PAGE_BACK_BUTTON_X = 43;
    private static final int PAGE_FORWARD_BUTTON_X = 116;
    private static final int PAGE_INDICATOR_TEXT_Y_OFFSET = 16;
    private static final int PAGE_INDICATOR_X_OFFSET = 148;
    private static final Component TITLE = Component.translatable("book.edit.title");
    private static final Component SIGN_BOOK_LABEL = Component.translatable("book.signButton");
    private final Player owner;
    private final ItemStack book;
    private final BookSignScreen signScreen;
    private int currentPage;
    private final List<String> pages = Lists.newArrayList();
    private PageButton forwardButton;
    private PageButton backButton;
    private final InteractionHand hand;
    private Component numberOfPages = CommonComponents.EMPTY;
    private MultiLineEditBox page;
 
    public BookEditScreen(Player owner, ItemStack book, InteractionHand hand, WritableBookContent content) {
        super(TITLE);
        this.owner = owner;
        this.book = book;
        this.hand = hand;
        content.getPages(Minecraft.getInstance().isTextFilteringEnabled()).forEach(this.pages::add);
        if (this.pages.isEmpty()) {
            this.pages.add("");
        }
 
        this.signScreen = new BookSignScreen(this, owner, hand, this.pages);
    }
 
    private int getNumPages() {
        return this.pages.size();
    }
 
    @Override
    protected void init() {
        int left = this.backgroundLeft();
        int top = this.backgroundTop();
        int padding = 8;
        this.page = MultiLineEditBox.builder()
            .setShowDecorations(false)
            .setTextColor(-16777216)
            .setCursorColor(-16777216)
            .setShowBackground(false)
            .setTextShadow(false)
            .setX((this.width - 114) / 2 - 8)
            .setY(28)
            .build(this.font, 122, 134, CommonComponents.EMPTY);
        this.page.setCharacterLimit(1024);
        this.page.setLineLimit(126 / 9);
        this.page.setValueListener(value -> this.pages.set(this.currentPage, value));
        this.addRenderableWidget(this.page);
        this.updatePageContent();
        this.numberOfPages = this.getPageNumberMessage();
        this.backButton = this.addRenderableWidget(new PageButton(left + 43, top + 157, false, button -> this.pageBack(), true));
        this.forwardButton = this.addRenderableWidget(new PageButton(left + 116, top + 157, true, button -> this.pageForward(), true));
        this.addRenderableWidget(
            Button.builder(SIGN_BOOK_LABEL, button -> this.minecraft.setScreen(this.signScreen))
                .pos(this.width / 2 - 98 - 2, this.menuControlsTop())
                .width(98)
                .build()
        );
        this.addRenderableWidget(Button.builder(CommonComponents.GUI_DONE, button -> {
            this.minecraft.setScreen(null);
            this.saveChanges();
        }).pos(this.width / 2 + 2, this.menuControlsTop()).width(98).build());
        this.updateButtonVisibility();
    }
 
    private int backgroundLeft() {
        return (this.width - 192) / 2;
    }
 
    private int backgroundTop() {
        return 2;
    }
 
    private int menuControlsTop() {
        return this.backgroundTop() + 192 + 2;
    }
 
    @Override
    protected void setInitialFocus() {
        this.setInitialFocus(this.page);
    }
 
    @Override
    public Component getNarrationMessage() {
        return CommonComponents.joinForNarration(super.getNarrationMessage(), this.getPageNumberMessage());
    }
 
    private Component getPageNumberMessage() {
        return Component.translatable("book.pageIndicator", this.currentPage + 1, this.getNumPages()).withColor(-16777216).withoutShadow();
    }
 
    private void pageBack() {
        if (this.currentPage > 0) {
            this.currentPage--;
            this.updatePageContent();
        }
 
        this.updateButtonVisibility();
    }
 
    private void pageForward() {
        if (this.currentPage < this.getNumPages() - 1) {
            this.currentPage++;
        } else {
            this.appendPageToBook();
            if (this.currentPage < this.getNumPages() - 1) {
                this.currentPage++;
            }
        }
 
        this.updatePageContent();
        this.updateButtonVisibility();
    }
 
    private void updatePageContent() {
        this.page.setValue(this.pages.get(this.currentPage), true);
        this.numberOfPages = this.getPageNumberMessage();
    }
 
    private void updateButtonVisibility() {
        this.backButton.visible = this.currentPage > 0;
    }
 
    private void eraseEmptyTrailingPages() {
        ListIterator<String> pagesIt = this.pages.listIterator(this.pages.size());
 
        while (pagesIt.hasPrevious() && pagesIt.previous().isEmpty()) {
            pagesIt.remove();
        }
    }
 
    private void saveChanges() {
        this.eraseEmptyTrailingPages();
        this.updateLocalCopy();
        int slot = this.hand == InteractionHand.MAIN_HAND ? this.owner.getInventory().getSelectedSlot() : 40;
        this.minecraft.getConnection().send(new ServerboundEditBookPacket(slot, this.pages, Optional.empty()));
    }
 
    private void updateLocalCopy() {
        this.book.set(DataComponents.WRITABLE_BOOK_CONTENT, new WritableBookContent(this.pages.stream().map(Filterable::passThrough).toList()));
    }
 
    private void appendPageToBook() {
        if (this.getNumPages() < 100) {
            this.pages.add("");
        }
    }
 
    @Override
    public boolean isInGameUi() {
        return true;
    }
 
    @Override
    public boolean keyPressed(KeyEvent event) {
        switch (event.key()) {
            case 266:
                this.backButton.onPress(event);
                return true;
            case 267:
                this.forwardButton.onPress(event);
                return true;
            default:
                return super.keyPressed(event);
        }
    }
 
    @Override
    public void extractRenderState(GuiGraphicsExtractor graphics, int mouseX, int mouseY, float a) {
        super.extractRenderState(graphics, mouseX, mouseY, a);
        this.visitText(graphics.textRenderer());
    }
 
    private void visitText(ActiveTextCollector collector) {
        int left = this.backgroundLeft();
        int top = this.backgroundTop();
        collector.accept(TextAlignment.RIGHT, left + 148, top + 16, this.numberOfPages);
    }
 
    @Override
    public void extractBackground(GuiGraphicsExtractor graphics, int mouseX, int mouseY, float a) {
        super.extractBackground(graphics, mouseX, mouseY, a);
        graphics.blit(RenderPipelines.GUI_TEXTURED, BookViewScreen.BOOK_LOCATION, this.backgroundLeft(), this.backgroundTop(), 0.0F, 0.0F, 192, 192, 256, 256);
    }
}

引用的其他类

• Minecraft

  • 引用位置: 方法调用
  • 关联成员: Minecraft.getInstance()

• ActiveTextCollector

  • 引用位置: 参数

• GuiGraphicsExtractor

  • 引用位置: 参数

• Button

  • 引用位置: 方法调用
  • 关联成员: Button.builder()

• MultiLineEditBox

  • 引用位置: 字段/方法调用
  • 关联成员: MultiLineEditBox.builder()

• Screen

  • 引用位置: 继承

• BookSignScreen

  • 引用位置: 字段/构造调用
  • 关联成员: BookSignScreen()

• PageButton

  • 引用位置: 字段/构造调用
  • 关联成员: PageButton()

• KeyEvent

  • 引用位置: 参数

• CommonComponents

  • 引用位置: 方法调用
  • 关联成员: CommonComponents.joinForNarration()

• Component

  • 引用位置: 字段/方法调用/返回值
  • 关联成员: Component.translatable()

• ServerboundEditBookPacket

  • 引用位置: 构造调用
  • 关联成员: ServerboundEditBookPacket()

• InteractionHand

  • 引用位置: 参数/字段

• Player

  • 引用位置: 参数/字段

• ItemStack

  • 引用位置: 参数/字段

• WritableBookContent

  • 引用位置: 参数/构造调用
  • 关联成员: WritableBookContent()