我想在qml中创建弯曲的文字吗?我可以导入一个JavaScript库来做到这一点吗?
我的想法是,有可能使用canvas元素,但是我不知道该怎么做……这是一个好主意?
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
Canvas{
anchors.fill: parent
onPaint: {
var ctx = getContext("2d");
ctx.fillStyle = Qt.rgba(1, 0, 0, 1);
ctx.fillRect(0, 0, width, height);
//how i can create curved text???
}
}
}
最佳答案
您好,我尝试将代码插入@folibis发布的链接中,效果很好!!!
这是代码:
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
Canvas{
property string nameFont: webFont.name
function drawTextAlongArc(context, str, centerX, centerY, radius, angle)
{
context.save();
context.translate(centerX, centerY);
context.rotate(-1 * angle / 2);
context.rotate(-1 * (angle / str.length) / 2);
for (var n = 0; n < str.length; n++) {
context.rotate(angle / str.length);
context.save();
context.translate(0, -1 * radius);
var char1 = str[n];
context.fillText(char1, 0, 0);
context.restore();
}
context.restore();
}
anchors.fill: parent
onPaint: {
var ctx = getContext("2d");
ctx.fillStyle = Qt.rgba(1, 1, 1, 1);
ctx.fillRect(0, 0, width, height);
ctx.font='50px Verdana'
//ctx.font = '30px Courier New'
ctx.textAlign = "center";
var centerX = width / 2;
var centerY = height/2; //height - 30;
var angle = Math.PI * 0.8; // radians
var radius = 180;
ctx.fillStyle="#000000"
drawTextAlongArc(ctx, "Hello World", centerX, centerY, radius, angle);
}
}
}