size QML Value Type

带有宽度和高度属性的值。更多

详细说明

size 类型指的是具有width 和height 属性的值。

size 类型的属性默认值为Qt.size(-1, -1) 。

例如，要读取Image::sourceSize size-type 属性的width 和height 值：

Column {
    Image { id: image; source: "logo.png" }
    Text { text: image.sourceSize.width + "," + image.sourceSize.height }
}

要创建size 值，请将其指定为 "宽 x 高 "字符串：

Image { sourceSize: "150x50" }

或使用Qt.size() 函数：

Image { sourceSize: Qt.size(150, 50) }

与 C++ 集成时，请注意从 C++ 传入 QML 的任何QSize 或QSizeF 值都会自动转换为size 值，反之亦然。当size 值传入 C++ 时，会自动转换成QSizeF 值。

另请参阅 QML 值类型。

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