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code/g3soft-libs/docs/examples/modal/resize.vue

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+<script setup lang="ts">
+// 拖动标题栏移动、拖拽四边缩放、全屏切换；centered 让面板垂直居中
+import { ref } from 'vue'
+import { G3Button, G3Modal, G3Space } from '@g3soft/ui'
+
+const open = ref(false)
+const fullscreen = ref(false)
+</script>
+
+<template>
+  <G3Space :size="12" wrap>
+    <G3Button type="outline" @click="open = true; fullscreen = false">可拖动 / 缩放</G3Button>
+    <G3Button type="outline" @click="open = true; fullscreen = true">居中显示</G3Button>
+
+    <G3Modal
+      v-model:open="open"
+      :title="fullscreen ? '居中且禁止拖动' : '拖动标题栏可移动，拖拽四边可缩放'"
+      :width="560"
+      :centered="fullscreen"
+      :fullscreen="!fullscreen"
+      :resizable="!fullscreen"
+    >
+      <p style="margin: 0">面板默认贴顶显示；开启 centered 后垂直居中，适合确认类与短表单。</p>
+      <p style="margin: 8px 0 0; color: #6b7280">
+        右上角的全屏按钮与拖动/缩放互斥：全屏时会自动复位位置。
+      </p>
+    </G3Modal>
+  </G3Space>
+</template>