rect QML Basic Type

The rect type refers to a value with x , y , width and height 属性。

For example, to read the width and height values of the Item childrenRect rect-type property:

Rectangle {
    width: childrenRect.width
    height: childrenRect.height
    Rectangle { width: 100; height: 100 }
}
					

要创建 rect value, specify it as a "x, y, width x height" string:

CustomObject { myRectProperty: "50,50,100x100" }
					

或使用 Qt.rect() 函数：

CustomObject { myRectProperty: Qt.rect(50, 50, 100, 100) }
					

The rect type also exposes read-only left , right , top and bottom attributes. These are the same as their C++ counterparts .

When integrating with C++, note that any QRect or QRectF 值 passed into QML from C++ is automatically converted into a rect value, and vice-versa. When a rect value is passed to C++, it is automatically converted into a QRectF 值。

另请参阅 QML 基本类型 .

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