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transformlist branch: fix scaling or rotated elements 

git-svn-id: http://svg-edit.googlecode.com/svn/branches/transformlist@900 eee81c28-f429-11dd-99c0-75d572ba1ddd
master
Jeff Schiller 2009-11-03 15:59:27 +00:00
parent f9b4b0a647
commit 85d35b6cbd
1 changed files with 40 additions and 11 deletions
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47
editor/svgcanvas.js
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@ -1,9 +1,8 @@
/* /*
TODOs for TransformList: TODOs for TransformList:
* Fix moving/resizing/rotating of groups (pummel the transforms down to the children?)
* Fix rotation transforms after scaling
* Fix proper selector box sizing * Fix proper selector box sizing
* Fix moving/resizing/rotating of groups (pummel the transforms down to the children?)
* Ensure resizing in negative direction works * Ensure resizing in negative direction works
* Ensure ungrouping works * Ensure ungrouping works
* Ensure undo still works properly * Ensure undo still works properly
@ -1313,11 +1312,13 @@ function BatchCommand(text) {
// reduce the transform list here... // reduce the transform list here...
var box = canvas.getBBox(selected); var box = canvas.getBBox(selected);
var newcenter = {x: (box.x+box.width/2), y: (box.y+box.height/2)}; var origcenter = {x: (box.x+box.width/2), y: (box.y+box.height/2)};
var newcenter = {x: origcenter.x, y: origcenter.y};
var currentMatrix = {a:1, b:0, c:0, d:1, e:0, f:0}; var currentMatrix = {a:1, b:0, c:0, d:1, e:0, f:0};
var n = tlist.numberOfItems; var n = tlist.numberOfItems;
var tx = 0, ty = 0, sx = 1, sy = 1, r = 0.0; var tx = 0, ty = 0, sx = 1, sy = 1, r = 0.0;
while (n--) { while (n--) {
var bRemoveTransform = true;
var xform = tlist.getItem(n); var xform = tlist.getItem(n);
var m = xform.matrix; var m = xform.matrix;
// if translate... // if translate...
@ -1334,14 +1335,43 @@ function BatchCommand(text) {
scaleh = function(h) { return m.d * h; } scaleh = function(h) { return m.d * h; }
break; break;
case 4: // ROTATE case 4: // ROTATE
// TODO: re-center the rotation and then continue (we cannot reduce a rotate) // if the new center of the shape has moved, then
// re-center the rotation, and determine the movement
// offset required to keep the shape in the same place
if (origcenter.x != newcenter.x || origcenter.y != newcenter.y) {
var alpha = xform.angle * Math.PI / 180.0;
// determine where the new rotated center should be
var dx = newcenter.x - origcenter.x,
dy = newcenter.y - origcenter.y,
r = Math.sqrt(dx*dx + dy*dy),
theta = Math.atan2(dy,dx) + alpha;
var cx = r * Math.cos(theta) + origcenter.x,
cy = r * Math.sin(theta) + origcenter.y;
dx = cx - newcenter.x;
dy = cy - newcenter.y;
// TODO: fix this so that it determines the true translation
// required so that the rotational center lines up
remap = function(x,y) {
return { x: x + dx, y: y + dy };
};
scalew = function(w) { return w; }
scaleh = function(h) { return h; }
bRemoveTransform = false;
var newrot = svgroot.createSVGTransform(); var newrot = svgroot.createSVGTransform();
newrot.setRotate(xform.angle, newcenter.x, newcenter.y); newrot.setRotate(xform.angle, cx, cy);
// tlist.replaceItem(newrot, n); tlist.replaceItem(newrot, n);
}
break;
// fall through to the default: continue below // fall through to the default: continue below
default: default:
continue; continue;
} }
if (!remap) continue;
newcenter = remap(box.x+box.width/2, box.y+box.height/2); newcenter = remap(box.x+box.width/2, box.y+box.height/2);
var bpt = remap(box.x,box.y); var bpt = remap(box.x,box.y);
box.x = bpt.x; box.x = bpt.x;
@ -1363,7 +1393,6 @@ function BatchCommand(text) {
var pt = remap(childBox.x,childBox.y), var pt = remap(childBox.x,childBox.y),
w = scalew(childBox.width), w = scalew(childBox.width),
h = scaleh(childBox.height); h = scaleh(childBox.height);
console.log([pt.x,pt.y,w,h]);
childBox.x = pt.x; childBox.y = pt.y; childBox.x = pt.x; childBox.y = pt.y;
childBox.width = w; childBox.height = h; childBox.width = w; childBox.height = h;
batchCmd.addSubCommand(recalculateDimensions(child, childBox)); batchCmd.addSubCommand(recalculateDimensions(child, childBox));
@ -1392,7 +1421,6 @@ function BatchCommand(text) {
changes["cy"] = c.y; changes["cy"] = c.y;
changes["rx"] = scalew(changes["rx"]); changes["rx"] = scalew(changes["rx"]);
changes["ry"] = scaleh(changes["ry"]); changes["ry"] = scaleh(changes["ry"]);
console.log(changes);
break; break;
case "rect": case "rect":
case "image": case "image":
@ -1456,7 +1484,9 @@ function BatchCommand(text) {
} // switch on element type to get initial values } // switch on element type to get initial values
// we have eliminated the transform, so remove it from the list // we have eliminated the transform, so remove it from the list
if (bRemoveTransform) {
tlist.removeItem(n); tlist.removeItem(n);
}
// now loop through the other transforms and adjust accordingly // now loop through the other transforms and adjust accordingly
for ( var j = n; j < tlist.numberOfItems; ++j) { for ( var j = n; j < tlist.numberOfItems; ++j) {
@ -2096,7 +2126,6 @@ function BatchCommand(text) {
else if(griptype == "selectorGrip_resize_") { else if(griptype == "selectorGrip_resize_") {
current_mode = "resize"; current_mode = "resize";
current_resize_mode = gripid.substr(20,gripid.indexOf("_",20)-20); current_resize_mode = gripid.substr(20,gripid.indexOf("_",20)-20);
console.log(current_resize_mode);
} }
mouse_target = selectedElements[0]; mouse_target = selectedElements[0];
} }