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main.qml
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main.qml
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import QtQuick 2.3
import QtQuick.Window 2.2
import com.llliuyx.drawline 1.0
Window {
visible: true
Text {
anchors{ bottom: circlesRect.top; bottomMargin: 100; horizontalCenter: circlesRect.horizontalCenter}
font.pixelSize: 50
text: circlesRect.isActiveString
}
Rectangle {
id: circlesRect
property bool isPainting
property real spacing: 300
property real radius: 30
property real canActiveCircleRadius: circlesRect.radius * 3
property var circles: [mapFromItem(rect0, circle0.centerPointX, circle0.centerPointY), mapFromItem(rect1, circle1.centerPointX, circle1.centerPointY), mapFromItem(rect2, circle2.centerPointX, circle2.centerPointY), mapFromItem(rect3, circle3.centerPointX, circle3.centerPointY), mapFromItem(rect4, circle4.centerPointX, circle4.centerPointY), mapFromItem(rect5, circle5.centerPointX, circle5.centerPointY), mapFromItem(rect6, circle6.centerPointX, circle6.centerPointY), mapFromItem(rect7, circle7.centerPointX, circle7.centerPointY), mapFromItem(rect8, circle8.centerPointX, circle8.centerPointY)]
property var circleIds: [circle0, circle1, circle2, circle3, circle4, circle5, circle6, circle7, circle8]
property string isActiveString: ""
width: 900; height: 900
border.color: "black"
anchors.centerIn: parent
Item {
id: rect0
x: 0; y: 0
width: parent.spacing; height: width
Circle {
id: circle0
radius: circlesRect.radius
anchors.centerIn: parent
}
}
Item {
id: rect1
x: parent.spacing; y: 0;
width: parent.spacing; height: width
Circle {
id: circle1
radius: circlesRect.radius
anchors.centerIn: parent
}
}
Item {
id: rect2
x: parent.spacing * 2; y: 0;
width: parent.spacing; height: width
Circle {
id: circle2
radius: circlesRect.radius
anchors.centerIn: parent
}
}
Item {
id: rect3
x: 0; y: parent.spacing;
width: parent.spacing; height: width
Circle {
id: circle3
radius: circlesRect.radius
anchors.centerIn: parent
}
}
Item {
id: rect4
x: parent.spacing; y: parent.spacing;
width: parent.spacing; height: width
Circle {
id: circle4
radius: circlesRect.radius
anchors.centerIn: parent
}
}
Item {
id: rect5
x: parent.spacing * 2; y: parent.spacing;
width: parent.spacing; height: width
Circle {
id: circle5
radius: circlesRect.radius
anchors.centerIn: parent
}
}
Item {
id: rect6
x: 0; y: parent.spacing * 2;
width: parent.spacing; height: width
Circle {
id: circle6
radius: circlesRect.radius
anchors.centerIn: parent
}
}
Item {
id: rect7
x: parent.spacing; y: parent.spacing * 2;
width: parent.spacing; height: width
Circle {
id: circle7
radius: circlesRect.radius
anchors.centerIn: parent
}
}
Item {
id: rect8
x: parent.spacing * 2; y: parent.spacing * 2;
width: parent.spacing; height: width
Circle {
id: circle8
radius: circlesRect.radius
anchors.centerIn: parent
}
}
DrawLine {
id: drawLine
anchors.fill: parent
}
MouseArea {
id: circlesRectMouse
anchors.fill: parent
onPressed: {
circlesRect.resetPaintLine()
for(var i = 0; i < circlesRect.circles.length; i++) {
if(!circlesRect.circleIds[i].isActive) {
if(Math.abs(mouse.x - circlesRect.circles[i].x) <= circlesRect.canActiveCircleRadius && Math.abs(mouse.y - circlesRect.circles[i].y) <= circlesRect.canActiveCircleRadius) {
circlesRect.circleIds[i].isActive = true
circlesRect.isActiveString += i.toString()
drawLine.setDrawLineP1(Qt.point(circlesRect.circles[i].x, circlesRect.circles[i].y))
return
}
}
}
}
onReleased: {
circlesRect.isPainting = false
drawLine.finishedDrawLine()
}
onPositionChanged: {
if(!drawLine.hasP1()) {
for(var i = 0; i < circlesRect.circles.length; i++) {
if(!circlesRect.circleIds[i].isActive) {
if(Math.abs(mouse.x - circlesRect.circles[i].x) <= circlesRect.canActiveCircleRadius && Math.abs(mouse.y - circlesRect.circles[i].y) <= circlesRect.canActiveCircleRadius) {
circlesRect.circleIds[i].isActive = true
circlesRect.isActiveString += i.toString()
drawLine.setDrawLineP1(Qt.point(circlesRect.circles[i].x, circlesRect.circles[i].y))
return
}
}
}
}
else {
drawLine.setDrawLineP2(Qt.point(mouse.x, mouse.y))
for(var i = 0; i < circlesRect.circles.length; i++) {
if(!circlesRect.circleIds[i].isActive) {
if(Math.abs(mouse.x - circlesRect.circles[i].x) <= circlesRect.canActiveCircleRadius && Math.abs(mouse.y - circlesRect.circles[i].y) <= circlesRect.canActiveCircleRadius) {//cross the circle
var p1 = drawLine.getP1()
var midPointX = (p1.x + circlesRect.circles[i].x) / 2
var midPointY = (p1.y + circlesRect.circles[i].y) / 2
for(var j = 0; j < circlesRect.circles.length; j++) {
if(Math.abs(midPointX - circlesRect.circles[j].x) <= circlesRect.canActiveCircleRadius && Math.abs(midPointY - circlesRect.circles[j].y) <= circlesRect.canActiveCircleRadius) {//cross the circle
circlesRect.circleIds[j].isActive = true
circlesRect.isActiveString += j.toString()
drawLine.addLine(Qt.point(circlesRect.circles[j].x, circlesRect.circles[j].y))
return
}
}
circlesRect.circleIds[i].isActive = true
circlesRect.isActiveString += i.toString()
drawLine.addLine(Qt.point(circlesRect.circles[i].x, circlesRect.circles[i].y))
return
}
// else {//以下算法使用点到直线的距离，计算线飘过点的情况，当点距离线一定距离后，连接该点
// var p1 = drawLine.getP1()
// if((Math.pow((p1.x - mouse.x), 2) + Math.pow((p1.y - mouse.y), 2)) > (Math.pow((p1.x - circlesRect.circles[i].x), 2) + Math.pow((p1.y - circlesRect.circles[i].y), 2))) {//排除线还未到达该点的情况
// if((p1.x < mouse.x && p1.x < circlesRect.circles[i].x) || (p1.x > mouse.x && p1.x > circlesRect.circles[i].x) || (p1.y < mouse.y && p1.y < circlesRect.circles[i].y) || (p1.y > mouse.y && p1.y > circlesRect.circles[i].y)) {//排除与某点反方向的另一点
// //点到直线的距离公式
// var numerator = Math.abs( (mouse.y - p1.y)*circlesRect.circles[i].x + (p1.x - mouse.x)*circlesRect.circles[i].y + (mouse.x * p1.y - p1.x * mouse.y) )//|Ax + By + c|
// var denominator = Math.sqrt(Math.pow((mouse.y - p1.y), 2) + Math.pow((p1.x - mouse.x), 2)) //sqrt(A*A + B*B)
// var d = numerator / denominator
// if(d <= circlesRect.canActiveCircleRadius) {
// var midPointX2 = (p1.x + circlesRect.circles[i].x) / 2
// var midPointY2 = (p1.y + circlesRect.circles[i].y) / 2
// for(var j = 0; j < circlesRect.circles.length; j++) {
// if(Math.abs(midPointX2 - circlesRect.circles[j].x) <= circlesRect.canActiveCircleRadius && Math.abs(midPointY2 - circlesRect.circles[j].y) <= circlesRect.canActiveCircleRadius) {//cross the circle
// circlesRect.circleIds[j].isActive = true
// circlesRect.isActiveString += j.toString()
// drawLine.addLine(Qt.point(circlesRect.circles[j].x, circlesRect.circles[j].y))
// return
// }
// }
// circlesRect.circleIds[i].isActive = true
// circlesRect.isActiveString += i.toString()
// drawLine.addLine(Qt.point(circlesRect.circles[i].x, circlesRect.circles[i].y))
// }
// }
// }
// }
}
}
}
}
}
function resetPaintLine() {
for(var i = 0; i < circlesRect.circleIds.length; i++) {
circlesRect.circleIds[i].isActive = false
circlesRect.circleIds[i].radius = circlesRect.radius
}
drawLine.clearLines()
circlesRect.isActiveString = ""
}
}
}