ButtonStyle.qml

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import QtQuick 2.1
import QtQuick.Controls 1.0
import QtQuick.Controls.Private 1.0

/*!
    \qmltype ButtonStyle
    \inqmlmodule QtQuick.Controls.Styles 1.0
    \since QtQuick.Controls.Styles 1.0
    \brief Provides custom styling for Button

    You can create a custom button by replacing the "background" delegate
    of the ButtonStyle with a custom design.

    Example:
    \qml
    Button {
        text: "A button"
        style: ButtonStyle {
            background: Rectangle {
                implicitWidth: 100
                implicitHeight: 25
                border.width: control.activeFocus ? 2 : 1
                border.color: "#888"
                radius: 4
                gradient: Gradient {
                    GradientStop { position: 0 ; color: control.pressed ? "#ccc" : "#eee" }
                    GradientStop { position: 1 ; color: control.pressed ? "#aaa" : "#ccc" }
                }
            }
        }
    }