我的Fabric应用程序需要一项功能,该功能允许用户编辑组内的文本框。我几乎可以正常工作了。就目前而言,这就是我的应用程序的工作方式:
这里是我的代码的小提琴: https://jsfiddle.net/1dr8jn26/4/
执行以下操作以复制我的问题:
您会注意到,该小组在页面的一侧创建了自己的副本。我自己发现的东西:
对于编程我还是一个相对较新的人,所以我相信这对于这里的经验丰富的编码人员来说是显而易见的。任何帮助,将不胜感激!
canvas.on('mouse:down', function(options) {
if (options.target) {
var thisTarget = options.target;
var mousePos = canvas.getPointer(options.e);
if (thisTarget.isType('group')) {
var groupPos = {
x: thisTarget.left,
y: thisTarget.top
}
var currentGroup = [];
var groupItems = []
groupItems = thisTarget._objects;
thisTarget.forEachObject(function(object,i) {
currentGroup[i] = object;
currentGroup.push(object);
})
thisTarget.forEachObject(function(object,i) {
if(object.type == "textbox"){
console.log("Start for statement that finds the x and y for each
object")
var matrix = thisTarget.calcTransformMatrix()
var newPoint = fabric.util.transformPoint({y: object.top, x:
object.left}, matrix)
var objectPos = {
xStart: newPoint.x,
xEnd: newPoint.x + object.width,
yStart: newPoint.y,
yEnd: newPoint.y + object.height
}
if (mousePos.x >= objectPos.xStart && mousePos.x <=
(objectPos.xEnd)) {
if (mousePos.y >= objectPos.yStart && mousePos.y <=
objectPos.yEnd) {
function ungroup (group) {
groupItems = group._objects;
group._restoreObjectsState();
canvas.remove(group);
for (var i = 0; i < groupItems.length; i++) {
canvas.add(groupItems[i]);
}
canvas.renderAll();
};
ungroup(thisTarget)
canvas.setActiveObject(object);
object.enterEditing();
object.selectAll();
object.on('editing:exited', function (options) {
var items = [];
groupItems.forEach(function (obj) {
items.push(obj);
canvas.remove(obj);
});
console.log(JSON.stringify(groupItems))
var grp = new fabric.Group(items, {});
canvas.add(grp);
});
}
}
}
});
}
}
});
-克里斯
答案 0 :(得分:0)
一直在查看代码,我想我找到了解决方案。该组在组groupItems中添加了两次。在开始时一次,在取消项目分组时第二次。
在您的小提琴中使用了下面的代码,并且可以正常工作...
canvas.on('mouse:down', function(options) {
var groupItems;
if (options.target) {
var thisTarget = options.target;
var mousePos = canvas.getPointer(options.e);
var editTextbox = false;
var editObject;
if (thisTarget.isType('group')) {
var groupPos = {
x: thisTarget.left,
y: thisTarget.top
}
thisTarget.forEachObject(function(object,i) {
if(object.type == "textbox"){
var matrix = thisTarget.calcTransformMatrix();
var newPoint = fabric.util.transformPoint({y: object.top, x: object.left}, matrix);
var objectPos = {
xStart: newPoint.x - (object.width * object.scaleX) / 2,//When OriginX and OriginY are centered, otherwise xStart: newpoint.x - object.width * object.scaleX etc...
xEnd: newPoint.x + (object.width * object.scaleX) / 2,
yStart: newPoint.y - (object.height * object.scaleY) / 2,
yEnd: newPoint.y + (object.height * object.scaleY) / 2
}
if ((mousePos.x >= objectPos.xStart && mousePos.x <= objectPos.xEnd) && (mousePos.y >= objectPos.yStart && mousePos.y <= objectPos.yEnd)) {
function ungroup (group) {
groupItems = group._objects;
group._restoreObjectsState();
canvas.remove(group);
for (var i = 0; i < groupItems.length; i++) {
if(groupItems[i] != "textbox"){
groupItems[i].selectable = false;
}
canvas.add(groupItems[i]);
}
canvas.renderAll();
};
ungroup(thisTarget);
canvas.setActiveObject(object);
object.enterEditing();
object.selectAll();
editObject = object;
var exitEditing = true;
editObject.on('editing:exited', function (options) {
if(exitEditing){
var items = [];
groupItems.forEach(function (obj) {
items.push(obj);
canvas.remove(obj);
});
var grp
grp = new fabric.Group(items, {});
canvas.add(grp);
exitEditing = false;
}
});
}
}
});
}
}
});