snap svg 拖动一组套
Snap svg drag a set of sets
我希望能够使用 Snap SVG 将一组集合作为一个组拖动。到目前为止,我只能将子集(矩形和文本框)作为一个项目拖动,但我想要实现的是集体 'table' 是可拖动的,而其中的字段仍然是单独的形状,以便我可以保持它们之间的 link 正常工作。这可能吗?
(编辑 - 我将 Raphael 重构为 Snap,并尝试将集合放入一个组中进行拖动)
这里有一个 link 给 plunker:http://plnkr.co/edit/9ewo0OcgThwB4KyMTxIL?p=preview
还有下面的代码:
// Code goes here
Snap.plugin( function( Snap, Element, Paper, global ) {
Paper.prototype.connection = function (obj1, obj2, line, bg) {
if (obj1.line && obj1.from && obj1.to) {
line = obj1;
obj1 = line.from;
obj2 = line.to;
}
var bb1 = obj1.getBBox(),
bb2 = obj2.getBBox(),
p = [{x: bb1.x + bb1.width / 2, y: bb1.y - 1},
{x: bb1.x + bb1.width / 2, y: bb1.y + bb1.height + 1},
{x: bb1.x - 1, y: bb1.y + bb1.height / 2},
{x: bb1.x + bb1.width + 1, y: bb1.y + bb1.height / 2},
{x: bb2.x + bb2.width / 2, y: bb2.y - 1},
{x: bb2.x + bb2.width / 2, y: bb2.y + bb2.height + 1},
{x: bb2.x - 1, y: bb2.y + bb2.height / 2},
{x: bb2.x + bb2.width + 1, y: bb2.y + bb2.height / 2}],
d = {}, dis = [];
for (var i = 0; i < 4; i++) {
for (var j = 4; j < 8; j++) {
var dx = Math.abs(p[i].x - p[j].x),
dy = Math.abs(p[i].y - p[j].y);
if ((i == j - 4) || (((i != 3 && j != 6) || p[i].x < p[j].x) && ((i != 2 && j != 7) || p[i].x > p[j].x) && ((i != 0 && j != 5) || p[i].y > p[j].y) && ((i != 1 && j != 4) || p[i].y < p[j].y))) {
dis.push(dx + dy);
d[dis[dis.length - 1]] = [i, j];
}
}
}
if (dis.length == 0) {
var res = [0, 4];
} else {
res = d[Math.min.apply(Math, dis)];
}
var x1 = p[res[0]].x,
y1 = p[res[0]].y,
x4 = p[res[1]].x,
y4 = p[res[1]].y;
dx = Math.max(Math.abs(x1 - x4) / 2, 10);
dy = Math.max(Math.abs(y1 - y4) / 2, 10);
var x2 = [x1, x1, x1 - dx, x1 + dx][res[0]].toFixed(3),
y2 = [y1 - dy, y1 + dy, y1, y1][res[0]].toFixed(3),
x3 = [0, 0, 0, 0, x4, x4, x4 - dx, x4 + dx][res[1]].toFixed(3),
y3 = [0, 0, 0, 0, y1 + dy, y1 - dy, y4, y4][res[1]].toFixed(3);
var path = "M" + x1.toFixed(3) + "," + y1.toFixed(3) + "C" + [ x2, y2, x3, y3, x4.toFixed(3), y4.toFixed(3)].join();
if (line && line.line) {
line.bg && line.bg.attr({path: path});
line.line.attr({path: path});
} else {
var color = "#000";
return {
bg: bg && bg.split && this.path(path).attr({stroke: bg.split("|")[0], fill: "none", "stroke-width": bg.split("|")[1] || 3}),
line: this.path(path).attr({stroke: color, fill: "none"}),
from: obj1,
to: obj2
};
}
}
});
var el;
(function () {
var color, i, ii, tempS, tempT;
var dragger = function () {
this.data("ox", this.attr("x"));
this.data("oy", this.attr("y"));
if (this.type != "text") this.animate({"fill-opacity": .2}, 500);
//this.pair.ox = this.pair.attr("x");
this.pair.data("ox", this.pair.attr("x"));
//this.pair.oy = this.pair.attr("y");
this.pair.data("oy", this.pair.attr("y"));
if (this.pair.type != "text") this.pair.animate({"fill-opacity": .2}, 500);
},
move = function (dx, dy) {
var att = {x: parseInt(this.data("ox")) + dx, y: parseInt( this.data("oy")) + dy};
this.attr(att);
//att = {x: this.pair.ox + dx, y: this.pair.oy + dy};
att = {x: this.pair.data("oy") + dx, y: this.pair.data("oy") + dy};
this.pair.attr(att);
for (var i = connections.length; i--;) {
s.connection(connections[i]);
}
},
up = function () {
if (this.type != "text") this.animate({"fill-opacity": 0}, 500);
// Fade paired element on mouse up
if (this.pair.type != "text") this.pair.animate({"fill-opacity": 0}, 500);
},
s = Snap("#svgout"),
connections = [],
shapes = [ // Users
s.rect(250, 80, 80, 20),
s.rect(250, 100, 80, 20),
s.rect(250, 120, 80, 20),
// Groups
s.rect(380, 80, 80, 20),
s.rect(380, 100, 80, 20),
s.rect(380, 120, 80, 20)
],
texts = [
s.text(290, 90, "Users"), //0
s.text(290, 110, "id"), //1
s.text(290, 130, "name"), //2
s.text(420, 90, "Groups"), //3
s.text(420, 110, "id"), //4
s.text(420, 130, "owner") //5
];
for (var i = 0, ii = shapes.length; i < ii; i++) {
color = "grey";
tempS = shapes[i].attr({fill: color, stroke: color, "fill-opacity": 0, "stroke-width": 2, cursor: "move"});
tempT = texts[i].attr({fill: color, stroke: "none", "font-size": 15, cursor: "move"});
//shapes[i].drag(move, dragger, up);
//texts[i].drag(move, dragger, up);
// Associate the elements
//tempS.pair = tempT;
//tempT.pair = tempS;
}
connections.push(s.connection(shapes[1], shapes[5]));
var group1 = s.g(shapes[0], shapes[1], shapes[2], texts[0], texts[1], texts[2]);
group1.drag(move, dragger, up);
})();
使用 Snap 会更容易一些,因为您根本不需要担心布景。 graffle/conversion 代码工作正常,但它只适用于矩形和圆形,所以它实际上看起来有点复杂,但我们可以让它在通过变换拖动的任何形状上工作。
不过要做到这一点,我们需要创建一个插件来获取一个边界框来解释它的变换,我认为 Snap 目前没有这样做(尽管有方法 getBBox(1) 我不知道认为这和我想的一样有效)
所以一个插件最初得到一个转换后的bbox(可能有更有效的方法,但只是做一个快速的解决方案)...
Element.prototype.getTransformedBB = function() {
var bb = this.getBBox(1);
var t = this.node.getTransformToElement( this.paper.node );
var m = Snap.matrix( t );
var obj = { x: m.x( bb.x, bb.y ), y: m.y( bb.x, bb.y ), x2: m.x( bb.x2, bb.y2 ), y2: m.y( bb.x2, bb.y2 ),
cx: m.x( bb.cx, bb.cy ), cy: m.y( bb.cy, bb.cy ) }
obj['width'] = obj.x2 - obj.x
obj['height'] = obj.y2 - obj.y
return obj;
};
然后在连接代码中使用 getTransformedBB 而不是 getBBox()...
var bb1 = obj1.getTransformedBB(),
bb2 = obj2.getTransformedBB(),
现在您正在使用 Snap,您可以使用适用于所有形状的简单拖动处理程序...
var dragger = function () {
this.data('origTransform', this.transform().local )
this.animate({"fill-opacity": .5}, 500);
},
move = function (dx, dy) {
this.attr({ transform: this.data('origTransform') + (this.data('origTransform') ? "T" : "t") + [dx, dy]})
for (var i = connections.length; i--;) {
s.connection(connections[i]);
}
},
up = function () {
this.animate({"fill-opacity": 1}, 500);
},
如果你只使用 rects,你可能不需要 transformedBB 的东西,但我认为这个解决方案可能适用于更奇怪的组情况。
来自组顶部的连接有点奇怪,不确定这是原始代码的错误还是什么,但如果需要,您可以通过在矩形上填充白色来绕过它并确保在连接后添加。
我希望能够使用 Snap SVG 将一组集合作为一个组拖动。到目前为止,我只能将子集(矩形和文本框)作为一个项目拖动,但我想要实现的是集体 'table' 是可拖动的,而其中的字段仍然是单独的形状,以便我可以保持它们之间的 link 正常工作。这可能吗? (编辑 - 我将 Raphael 重构为 Snap,并尝试将集合放入一个组中进行拖动)
这里有一个 link 给 plunker:http://plnkr.co/edit/9ewo0OcgThwB4KyMTxIL?p=preview
还有下面的代码:
// Code goes here
Snap.plugin( function( Snap, Element, Paper, global ) {
Paper.prototype.connection = function (obj1, obj2, line, bg) {
if (obj1.line && obj1.from && obj1.to) {
line = obj1;
obj1 = line.from;
obj2 = line.to;
}
var bb1 = obj1.getBBox(),
bb2 = obj2.getBBox(),
p = [{x: bb1.x + bb1.width / 2, y: bb1.y - 1},
{x: bb1.x + bb1.width / 2, y: bb1.y + bb1.height + 1},
{x: bb1.x - 1, y: bb1.y + bb1.height / 2},
{x: bb1.x + bb1.width + 1, y: bb1.y + bb1.height / 2},
{x: bb2.x + bb2.width / 2, y: bb2.y - 1},
{x: bb2.x + bb2.width / 2, y: bb2.y + bb2.height + 1},
{x: bb2.x - 1, y: bb2.y + bb2.height / 2},
{x: bb2.x + bb2.width + 1, y: bb2.y + bb2.height / 2}],
d = {}, dis = [];
for (var i = 0; i < 4; i++) {
for (var j = 4; j < 8; j++) {
var dx = Math.abs(p[i].x - p[j].x),
dy = Math.abs(p[i].y - p[j].y);
if ((i == j - 4) || (((i != 3 && j != 6) || p[i].x < p[j].x) && ((i != 2 && j != 7) || p[i].x > p[j].x) && ((i != 0 && j != 5) || p[i].y > p[j].y) && ((i != 1 && j != 4) || p[i].y < p[j].y))) {
dis.push(dx + dy);
d[dis[dis.length - 1]] = [i, j];
}
}
}
if (dis.length == 0) {
var res = [0, 4];
} else {
res = d[Math.min.apply(Math, dis)];
}
var x1 = p[res[0]].x,
y1 = p[res[0]].y,
x4 = p[res[1]].x,
y4 = p[res[1]].y;
dx = Math.max(Math.abs(x1 - x4) / 2, 10);
dy = Math.max(Math.abs(y1 - y4) / 2, 10);
var x2 = [x1, x1, x1 - dx, x1 + dx][res[0]].toFixed(3),
y2 = [y1 - dy, y1 + dy, y1, y1][res[0]].toFixed(3),
x3 = [0, 0, 0, 0, x4, x4, x4 - dx, x4 + dx][res[1]].toFixed(3),
y3 = [0, 0, 0, 0, y1 + dy, y1 - dy, y4, y4][res[1]].toFixed(3);
var path = "M" + x1.toFixed(3) + "," + y1.toFixed(3) + "C" + [ x2, y2, x3, y3, x4.toFixed(3), y4.toFixed(3)].join();
if (line && line.line) {
line.bg && line.bg.attr({path: path});
line.line.attr({path: path});
} else {
var color = "#000";
return {
bg: bg && bg.split && this.path(path).attr({stroke: bg.split("|")[0], fill: "none", "stroke-width": bg.split("|")[1] || 3}),
line: this.path(path).attr({stroke: color, fill: "none"}),
from: obj1,
to: obj2
};
}
}
});
var el;
(function () {
var color, i, ii, tempS, tempT;
var dragger = function () {
this.data("ox", this.attr("x"));
this.data("oy", this.attr("y"));
if (this.type != "text") this.animate({"fill-opacity": .2}, 500);
//this.pair.ox = this.pair.attr("x");
this.pair.data("ox", this.pair.attr("x"));
//this.pair.oy = this.pair.attr("y");
this.pair.data("oy", this.pair.attr("y"));
if (this.pair.type != "text") this.pair.animate({"fill-opacity": .2}, 500);
},
move = function (dx, dy) {
var att = {x: parseInt(this.data("ox")) + dx, y: parseInt( this.data("oy")) + dy};
this.attr(att);
//att = {x: this.pair.ox + dx, y: this.pair.oy + dy};
att = {x: this.pair.data("oy") + dx, y: this.pair.data("oy") + dy};
this.pair.attr(att);
for (var i = connections.length; i--;) {
s.connection(connections[i]);
}
},
up = function () {
if (this.type != "text") this.animate({"fill-opacity": 0}, 500);
// Fade paired element on mouse up
if (this.pair.type != "text") this.pair.animate({"fill-opacity": 0}, 500);
},
s = Snap("#svgout"),
connections = [],
shapes = [ // Users
s.rect(250, 80, 80, 20),
s.rect(250, 100, 80, 20),
s.rect(250, 120, 80, 20),
// Groups
s.rect(380, 80, 80, 20),
s.rect(380, 100, 80, 20),
s.rect(380, 120, 80, 20)
],
texts = [
s.text(290, 90, "Users"), //0
s.text(290, 110, "id"), //1
s.text(290, 130, "name"), //2
s.text(420, 90, "Groups"), //3
s.text(420, 110, "id"), //4
s.text(420, 130, "owner") //5
];
for (var i = 0, ii = shapes.length; i < ii; i++) {
color = "grey";
tempS = shapes[i].attr({fill: color, stroke: color, "fill-opacity": 0, "stroke-width": 2, cursor: "move"});
tempT = texts[i].attr({fill: color, stroke: "none", "font-size": 15, cursor: "move"});
//shapes[i].drag(move, dragger, up);
//texts[i].drag(move, dragger, up);
// Associate the elements
//tempS.pair = tempT;
//tempT.pair = tempS;
}
connections.push(s.connection(shapes[1], shapes[5]));
var group1 = s.g(shapes[0], shapes[1], shapes[2], texts[0], texts[1], texts[2]);
group1.drag(move, dragger, up);
})();
使用 Snap 会更容易一些,因为您根本不需要担心布景。 graffle/conversion 代码工作正常,但它只适用于矩形和圆形,所以它实际上看起来有点复杂,但我们可以让它在通过变换拖动的任何形状上工作。
不过要做到这一点,我们需要创建一个插件来获取一个边界框来解释它的变换,我认为 Snap 目前没有这样做(尽管有方法 getBBox(1) 我不知道认为这和我想的一样有效)
所以一个插件最初得到一个转换后的bbox(可能有更有效的方法,但只是做一个快速的解决方案)...
Element.prototype.getTransformedBB = function() {
var bb = this.getBBox(1);
var t = this.node.getTransformToElement( this.paper.node );
var m = Snap.matrix( t );
var obj = { x: m.x( bb.x, bb.y ), y: m.y( bb.x, bb.y ), x2: m.x( bb.x2, bb.y2 ), y2: m.y( bb.x2, bb.y2 ),
cx: m.x( bb.cx, bb.cy ), cy: m.y( bb.cy, bb.cy ) }
obj['width'] = obj.x2 - obj.x
obj['height'] = obj.y2 - obj.y
return obj;
};
然后在连接代码中使用 getTransformedBB 而不是 getBBox()...
var bb1 = obj1.getTransformedBB(),
bb2 = obj2.getTransformedBB(),
现在您正在使用 Snap,您可以使用适用于所有形状的简单拖动处理程序...
var dragger = function () {
this.data('origTransform', this.transform().local )
this.animate({"fill-opacity": .5}, 500);
},
move = function (dx, dy) {
this.attr({ transform: this.data('origTransform') + (this.data('origTransform') ? "T" : "t") + [dx, dy]})
for (var i = connections.length; i--;) {
s.connection(connections[i]);
}
},
up = function () {
this.animate({"fill-opacity": 1}, 500);
},
如果你只使用 rects,你可能不需要 transformedBB 的东西,但我认为这个解决方案可能适用于更奇怪的组情况。
来自组顶部的连接有点奇怪,不确定这是原始代码的错误还是什么,但如果需要,您可以通过在矩形上填充白色来绕过它并确保在连接后添加。