Qt Documentation

Contents

Rectangle QML Type

A filled rectangle with an optional border. More...

Import Statement: import QtQuick.Studio.Components 1.0
Since: QtQuick.Studio.Components 1.0
Inherits:

ShapePath

Properties

Detailed Description

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

Each Rectangle item is painted using either a solid fill color, specified using the fillColor property, or a gradient, defined using one of the ShapeGradient subtypes and set using the gradient property. If both a color and a gradient are specified, the gradient is used.

An optional border can be added to a rectangle with its own color and thickness by setting the strokeColor and strokeWidth properties. Setting the color to transparent creates a border without a fill color.

Rounded rectangles can be drawn using the radius property. The radius can also be specified separately for each corner. Because this introduces curved edges to the corners of a rectangle, it may be appropriate to set the antialiasing property to improve the appearance of the rectangle.

Example Usage

You can use the Rectangle component in Qt Design Studio to create different kinds of rectangles.

The QML code looks as follows:

RectangleItem {
    id: rectangle
    gradient: RadialGradient {
        focalRadius: 0
        centerY: 38.5
        focalY: 38.5
        centerX: 51.5
        centerRadius: 38.5
        GradientStop {
            position: 0
            color: "#ffffff"
        }

        GradientStop {
            position: 1
            color: "#000000"
        }
        focalX: 51.5
    }
    bottomRightRadius: 0
    topLeftRadius: 0
    strokeColor: "gray"
}

RectangleItem {
    id: rectangle1
    gradient: LinearGradient {
        y1: 0
        y2: 77
        x2: 103
        x1: 0
        GradientStop {
            position: 0
            color: "#ffffff"
        }

        GradientStop {
            position: 1
            color: "#000000"
        }
    }
    topRightRadius: 0
    bottomLeftRadius: 0
    strokeColor: "#808080"
}

RectangleItem {
    id: rectangle2
    topLeftRadius: 0
    bottomRightRadius: 0
    fillColor: "#d3d3d3"
    strokeColor: "#808080"
}

RectangleItem {
    id: rectangle3
    fillColor: "#000000"
    gradient: LinearGradient {
        y1: 0
        y2: 77
        x2: 103
        x1: 0
        GradientStop {
            position: 0
            color: "#000000"
        }

        GradientStop {
            position: 1
            color: "#fdf9f9"
        }
    }
    topRightRadius: 0
    bottomLeftRadius: 0
    strokeColor: "#808080"
}

Property Documentation

antialiasing : bool

Whether the Rectangle should be antialiased. Antialiasing might require more memory and slow down drawing the type.


bottomLeftRadius : int

The radius of the bottom left rectangle corner.


bottomRightRadius : int

The radius of the bottom right rectangle corner.


dashOffset : ShapePath

The starting point of the dash pattern for the rectangle border.

The offset is measured in terms of the units used to specify the dash pattern. For example, a pattern where each stroke is four units long, followed by a gap of two units, will begin with the stroke when drawn as a line. However, if the dash offset is set to 4.0, any line drawn will begin with the gap. Values of the offset up to 4.0 will cause part of the stroke to be drawn first, and values of the offset between 4.0 and 6.0 will cause the line to begin with part of the gap.

The default value is 0.

See also QPen::setDashOffset().


dashPattern : ShapePath

The dash pattern of the rectangle border specified as the dashes and the gaps between them.

The dash pattern is specified in units of the pen's width. That is, a dash with the length 5 and width 10 is 50 pixels long.

The default value is (4, 2), meaning a dash of 4 * strokeWidth pixels followed by a space of 2 * strokeWidth pixels.

See also QPen::setDashPattern().


fillColor : ShapePath

The rectangle fill color.

A gradient for the fill can be specified by using gradient. If both a color and a gradient are specified, the gradient is used.

When set to transparent, no filling occurs.

The default value is white.


gradient : ShapePath

The gradient of the rectangle fill color.

By default, no gradient is enabled and the value is null. In this case, the fill uses a solid color based on the value of fillColor.

When set, fillColor is ignored and filling is done using one of the ShapeGradient subtypes.

Note: The Gradient type cannot be used here. Rather, prefer using one of the advanced subtypes, like LinearGradient.


radius : int

The radius used to draw rounded corners.

If radius is non-zero, the corners will be rounded, otherwise they will be sharp. The radius can also be specified separately for each corner by using the bottomLeftRadius, bottomRightRadius, topLeftRadius, and topRightRadius properties.


strokeColor : ShapePath

The color used to draw the border of the rectangle.

When set to transparent, no line is drawn.

The default value is white.

See also QColor.


strokeStyle : ShapePath

The style of the rectangle border.

ConstantDescription
ShapePath.SolidLineA solid line. This is the default value.
ShapePath.DashLineDashes separated by a few pixels. The dashPattern property specifies the dash pattern.

See also Qt::PenStyle.


strokeWidth : ShapePath

The width of the border of the rectangle.

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

Note: 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.


topLeftRadius : int

The radius of the top left rectangle corner.


topRightRadius : int

The radius of the top right rectangle corner.


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