98 lines
3.8 KiB
JavaScript
98 lines
3.8 KiB
JavaScript
/*
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* Copyright [2011] [wisemapping]
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*
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* Licensed under WiseMapping Public License, Version 1.0 (the "License").
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* It is basically the Apache License, Version 2.0 (the "License") plus the
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* "powered by wisemapping" text requirement on every single page;
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the license at
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*
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* http://www.wisemapping.org/license
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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mindplot.util.Shape =
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{
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isAtRight:function (sourcePoint, targetPoint) {
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$assert(sourcePoint, "Source can not be null");
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$assert(targetPoint, "Target can not be null");
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return sourcePoint.x < targetPoint.x;
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},
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calculateRectConnectionPoint:function (rectCenterPoint, rectSize, isAtRight) {
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$assert(rectCenterPoint, 'rectCenterPoint can not be null');
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$assert(rectSize, 'rectSize can not be null');
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$assert($defined(isAtRight), 'isRight can not be null');
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// Node is placed at the right ?
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var result = new core.Point();
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// This is used fix a minor difference ...z
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var correctionHardcode = 2;
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if (isAtRight) {
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result.setValue(rectCenterPoint.x - (rectSize.width / 2) + correctionHardcode, rectCenterPoint.y);
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} else {
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result.setValue(parseFloat(rectCenterPoint.x) + (rectSize.width / 2) - correctionHardcode, rectCenterPoint.y);
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}
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return result;
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},
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calculateRelationShipPointCoordinates:function (topic, controlPoint) {
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var size = topic.getSize();
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var position = topic.getPosition();
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var m = (position.y - controlPoint.y) / (position.x - controlPoint.x);
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var y, x;
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var gap = 5;
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if (controlPoint.y > position.y + (size.height / 2)) {
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y = position.y + (size.height / 2) + gap;
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x = position.x - ((position.y - y) / m);
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if (x > position.x + (size.width / 2)) {
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x = position.x + (size.width / 2);
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} else if (x < position.x - (size.width / 2)) {
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x = position.x - (size.width / 2);
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}
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} else if (controlPoint.y < position.y - (size.height / 2)) {
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y = position.y - (size.height / 2) - gap;
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x = position.x - ((position.y - y) / m);
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if (x > position.x + (size.width / 2)) {
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x = position.x + (size.width / 2);
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} else if (x < position.x - (size.width / 2)) {
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x = position.x - (size.width / 2);
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}
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} else if (controlPoint.x < (position.x - size.width / 2)) {
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x = position.x - (size.width / 2) - gap;
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y = position.y - (m * (position.x - x));
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} else {
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x = position.x + (size.width / 2) + gap;
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y = position.y - (m * (position.x - x));
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}
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return new core.Point(x, y);
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},
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calculateDefaultControlPoints:function (srcPos, tarPos) {
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var y = srcPos.y - tarPos.y;
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var x = srcPos.x - tarPos.x;
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var m = y / (x == 0 ? 1 : x); // Prevent division by 0.
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var l = Math.sqrt(y * y + x * x) / 3;
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var fix = 1;
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if (srcPos.x > tarPos.x) {
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fix = -1;
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}
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var x1 = srcPos.x + Math.sqrt(l * l / (1 + (m * m))) * fix;
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var y1 = m * (x1 - srcPos.x) + srcPos.y;
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var x2 = tarPos.x + Math.sqrt(l * l / (1 + (m * m))) * fix * -1;
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var y2 = m * (x2 - tarPos.x) + tarPos.y;
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return [new core.Point(-srcPos.x + x1, -srcPos.y + y1), new core.Point(-tarPos.x + x2, -tarPos.y + y2)];
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}
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};
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