Rectangle QML 类型

描绘带有可选边框的填充矩形。 更多...

• 所有成员列表，包括继承成员

特性

• antialiasing : bool
• border
  • border.color : color
  • border.pixelAligned : bool
  • border.width : int
• bottomLeftRadius : real (从 6.7 起)
• bottomRightRadius : real (从 6.7 起)
• color : color
• gradient : var
• radius : real
• topLeftRadius : real (从 6.7 起)
• topRightRadius : real (从 6.7 起)

详细描述

Rectangle items are used to fill areas with solid color or gradients, and/or to provide a rectangular border.

外观

Each Rectangle item is painted using either a solid fill color, specified using the color property, or a gradient, defined using a Gradient type and set using the gradient property. If both a color and a gradient are specified, the gradient is used.

You can add an optional border to a rectangle with its own color and thickness by setting the border.color and border.width properties. Set the color to "transparent" to paint a border without a fill color.

You can also create rounded rectangles using the radius property. Since this introduces curved edges to the corners of a rectangle, it may be appropriate to set the Item::antialiasing property to improve its appearance. To set the radii individually for different corners, you can use the properties topLeftRadius , topRightRadius , bottomLeftRadius and bottomRightRadius .

用法范例

import QtQuick
Rectangle {
    width: 100
    height: 100
    color: "red"
    border.color: "black"
    border.width: 5
    radius: 10
}
						

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 Image .

特性文档编制

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.

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 抗锯齿 is enabled.

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

If bottomLeftRadius is not set, 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.

This property was introduced in Qt 6.7.

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

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

If bottomRightRadius is not set, 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.

This property was introduced in Qt 6.7.

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

This property holds the color used to fill the rectangle.

The default color is white.

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

Rectangle {
    y: 0; width: 80; height: 80
    color: "lightsteelblue"
}
Rectangle {
    y: 100; width: 80; height: 80
    gradient: Gradient {
        GradientStop { position: 0.0; color: "lightsteelblue" }
        GradientStop { position: 1.0; color: "blue" }
    }
}
Rectangle {
    y: 200; width: 80; height: 80
    rotation: 90
    gradient: Gradient {
        GradientStop { position: 0.0; color: "lightsteelblue" }
        GradientStop { position: 1.0; color: "blue" }
    }
}
							

Rectangle {
    y: 0; width: 80; height: 80
    gradient: Gradient.NightFade
}
Rectangle {
    y: 0; width: 80; height: 80
    gradient: "NightFade"
}