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blockly > 事件 > ViewportChange
Events.ViewportChange 类
通知监听器工作区 Surface 的位置或缩放比例已更改。
当工作区本身调整大小时,不会发出通知。
Signature:
export declare class ViewportChange extends UiBase
扩展: UiBase
构造函数
属性
方法
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最后更新时间 (UTC):2025-07-25。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-07-25。"],[],["The `ViewportChange` class notifies listeners about changes to the workspace surface's position or scale, excluding workspace resizing. It extends the `UiBase` class. Key properties include `oldScale`, `scale`, `viewLeft`, and `viewTop`, representing the previous and current scale, and the visible portion's edges, respectively. The class's constructor creates new instances, and the `toJson()` method encodes the event into JSON format. Its purpose is to inform of changes in what the user see.\n"]]