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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Quick Extras module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.3
import QtQuick.Controls.Styles 1.4 as Base
import QtQuick.Controls.Styles.Flat 1.0
import QtQuick.Extras.Private 1.0
Base.PieMenuStyle {
id: pieMenuStyle
shadowRadius: 0
shadowSpread: 0
shadowColor: "transparent"
backgroundColor: FlatStyle.styleColor
selectionColor: FlatStyle.styleColor
startAngle: -78
endAngle: 78
cancelRadius: radius * 0.4352
__implicitWidth: Math.round(85 * 2 * FlatStyle.scaleFactor)
__implicitHeight: __implicitWidth
title: null
menuItem: Item {
readonly property var __styleData: styleData
Canvas {
id: actionCanvas
antialiasing: true
anchors.fill: parent
anchors.margins: -1
Connections {
target: pieMenuStyle
onStartAngleChanged: actionCanvas.requestPaint()
onEndAngleChanged: actionCanvas.requestPaint()
}
Connections {
target: __styleData
onPressedChanged: actionCanvas.requestPaint()
}
readonly property bool stroke: !__styleData.hovered
readonly property real spacingThickness: Math.max(4 * FlatStyle.scaleFactor, radius * 0.05)
// It's actually one, but stroking always goes 50/50 on the inside/outside, so this is
// an easy way of making it one pixel without having to mess around with more drawing code.
// This will work as long as the fill and stroke colors are both completely opaque.
readonly property real lineWidth: FlatStyle.twoPixels
// The following properties are all for either side of a radius/circumference, so the total is actually double.
readonly property real outerMenuItemSpacing: Math.asin(spacingThickness / (2 * radius))
readonly property real innerMenuItemSpacing: Math.asin(spacingThickness / (2 * cancelRadius))
// The total angle to subtract from the circumference of the inner radius arc
readonly property real innerRadiusStrokeCircumferenceAdjustment: Math.asin(lineWidth / (2 * cancelRadius))
readonly property real outerRadiusStrokeCircumferenceAdjustment: Math.asin(lineWidth / (2 * radius))
onStrokeChanged: actionCanvas.requestPaint()
function drawRingSection(ctx, x, y, section, r, ringWidth, ringColor) {
if (stroke) {
ctx.strokeStyle = ringColor;
ctx.fillStyle = "white";
} else {
ctx.fillStyle = ringColor;
}
ctx.beginPath();
if (stroke)
ctx.lineWidth = lineWidth;
var start = control.__protectedScope.sectionStartAngle(section);
var end = control.__protectedScope.sectionEndAngle(section);
// Adjust the radius to account for stroke being 50% inside/50% outside.
var radius = !stroke ? r : r - ctx.lineWidth / 2;
// Add spacing between the items, while still accounting for reversed menus.
if (start > end) {
start -= outerMenuItemSpacing;
end += outerMenuItemSpacing;
if (stroke) {
start -= outerRadiusStrokeCircumferenceAdjustment;
end += outerRadiusStrokeCircumferenceAdjustment;
}
} else {
start += outerMenuItemSpacing;
end -= outerMenuItemSpacing;
if (stroke) {
start += outerRadiusStrokeCircumferenceAdjustment;
end -= outerRadiusStrokeCircumferenceAdjustment;
}
}
ctx.arc(x, y, radius, start, end, start > end);
start = control.__protectedScope.sectionStartAngle(section);
end = control.__protectedScope.sectionEndAngle(section);
radius = !stroke ? ringWidth : ringWidth + ctx.lineWidth / 2;
if (start > end) {
start -= innerMenuItemSpacing;
end += innerMenuItemSpacing;
if (stroke) {
start -= innerRadiusStrokeCircumferenceAdjustment;
end += innerRadiusStrokeCircumferenceAdjustment;
}
} else {
start += innerMenuItemSpacing;
end -= innerMenuItemSpacing;
if (stroke) {
start += innerRadiusStrokeCircumferenceAdjustment;
end -= innerRadiusStrokeCircumferenceAdjustment;
}
}
ctx.arc(x, y, radius, end, start, start <= end);
ctx.closePath();
if (stroke)
ctx.stroke();
ctx.fill();
}
onPaint: {
var ctx = getContext("2d");
ctx.reset();
drawRingSection(ctx, width / 2, height / 2, styleData.index, radius, cancelRadius,
__styleData.pressed ? FlatStyle.pressedColorAlt : (stroke ? backgroundColor : selectionColor));
}
}
PieMenuIcon {
control: pieMenuStyle.control
styleData: __styleData
}
}
}
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