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fixtransforms branch: Properly update rotation center 

git-svn-id: http://svg-edit.googlecode.com/svn/branches/fixtransforms@996 eee81c28-f429-11dd-99c0-75d572ba1ddd
master
Jeff Schiller 2009-12-04 05:18:20 +00:00
parent 61d03c8cbf
commit 4b0d3b23d3
1 changed files with 25 additions and 9 deletions
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30
editor/svgcanvas.js
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@ -11,6 +11,9 @@
/*
TODOs for TransformList:
* Fix problem when moving elements that have [R][M]
* Fix problem when ungrouping rotated elements that were scaled in a group
* When ungrouping, always end up with a single [M]
* When rotating, always end up with [Rc][M]
* When scaling a group, [Rc][M]
@ -1514,7 +1517,6 @@ function BatchCommand(text) {
// offset required to keep the shape in the same place
rotAngle = xform.angle;
if (origcenter.x != newcenter.x || origcenter.y != newcenter.y) {
rotAngle = xform.angle;
var alpha = xform.angle * Math.PI / 180.0;
// determine where the new rotated center should be
@ -5399,12 +5401,19 @@ function BatchCommand(text) {
// if this element was rotated, and we changed the position of this element
// we need to update the rotational transform attribute
var angle = canvas.getRotationAngle(elem);
if (angle && attr != "transform") {
if (angle != 0 && attr != "transform") {
var tlist = canvas.getTransformList(elem);
var n = tlist.numberOfItems;
while (n--) {
var xform = tlist.getItem(n);
if (xform.type == 4) {
var cx = round(selectedBBoxes[i].x + selectedBBoxes[i].width/2),
cy = round(selectedBBoxes[i].y + selectedBBoxes[i].height/2);
var rotate = ["rotate(", angle, " ", cx, ",", cy, ")"].join('');
if (rotate != elem.getAttribute("transform")) {
elem.setAttribute("transform", rotate);
var newrot = svgroot.createSVGTransform();
newrot.setRotate(angle, cx, cy);
tlist.replaceItem(newrot, n);
break;
}
}
}
} // if oldValue != newValue
@ -5543,8 +5552,15 @@ function BatchCommand(text) {
var newxform = svgroot.createSVGTransform();
var chtlist = canvas.getTransformList(elem);
newxform.setMatrix(matrixMultiply(m,transformListToTransform(chtlist).matrix.inverse()));
chtlist.insertItemBefore(newxform,0);
// [ gm ] [ chm ] = [ chm ] [ gm' ]
// [ gm' ] = [ chm_inv ] [ gm ] [ chm ]
var chm = transformListToTransform(chtlist).matrix,
chm_inv = chm.inverse();
var gm = matrixMultiply( chm_inv, matrixMultiply( m, chm ) );
newxform.setMatrix(gm);
chtlist.appendItem(newxform);
batchCmd.addSubCommand(recalculateDimensions(elem));
}
}