性能

使用 Item::antialiasing property improves the appearance of a rounded rectangle at the cost of rendering performance. You should consider unsetting this property for rectangles in motion, and only set it when they are stationary.

另请参阅 图像 .

特性文档编制

抗锯齿 : bool

Used to decide if the Rectangle should use antialiasing or not. 抗锯齿 provides information on the performance implications of this property.

The default is true for Rectangles with a radius, and false otherwise.

边框组
border.color : color
border.pixelAligned : bool
border.width : int

The width and color used to draw the border of the rectangle.

A width of 1 creates a thin line. For no line, use a width of 0 or a transparent color.

注意： The width of the rectangle's border does not affect the geometry of the rectangle itself or its position relative to other items if anchors are used.

The border is rendered within the rectangle's boundaries.

若 pixelAligned is true (the default), the rendered border width is rounded to a whole number of pixels, after device pixel ratio scaling. Setting pixelAligned to false will allow fractional border widths, which may be desirable when antialiasing 被启用。

bottomLeftRadius : real [since 6.7]

This property holds the radius used to draw the bottom left corner.

若 bottomLeftRadius 未设置， radius will be used instead. If bottomLeftRadius is zero, the corner will be sharp.

注意： This API is considered tech preview and may change or be removed in future versions of Qt.

该特性在 Qt 6.7 引入。

另请参阅 radius , topLeftRadius , topRightRadius ，和 bottomRightRadius .

bottomRightRadius : real [since 6.7]

This property holds the radius used to draw the bottom right corner.

若 bottomRightRadius 未设置， radius will be used instead. If bottomRightRadius is zero, the corner will be sharp.

注意： This API is considered tech preview and may change or be removed in future versions of Qt.

该特性在 Qt 6.7 引入。

另请参阅 radius , topLeftRadius , topRightRadius ，和 bottomLeftRadius .

color : color

This property holds the color used to fill the rectangle.

默认颜色为白色。

The following example shows rectangles with colors specified using hexadecimal and named color notation:

Rectangle {
    color: "#00B000"
    width: 80; height: 80
}
Rectangle {
    color: "steelblue"
    y: 100; width: 80; height: 80
}
				

Rectangle {
    width: 80; height: 80
    color: "lightsteelblue"
}
Rectangle {
    width: 80; height: 80
    gradient: Gradient {
        GradientStop { position: 0.0; color: "lightsteelblue" }
        GradientStop { position: 1.0; color: "blue" }
    }
}
Rectangle {
    width: 80; height: 80
    gradient: Gradient {
        orientation: Gradient.Horizontal
        GradientStop { position: 0.0; color: "lightsteelblue" }
        GradientStop { position: 1.0; color: "blue" }
    }
}
Rectangle {
    width: 80; height: 80
    rotation: 90
    gradient: Gradient {
        GradientStop { position: 0.0; color: "lightsteelblue" }
        GradientStop { position: 1.0; color: "blue" }
    }
}