74 lines
2.5 KiB
JavaScript
74 lines
2.5 KiB
JavaScript
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* AUTO-GENERATED FILE. DO NOT MODIFY.
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*/
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* For geo and graph.
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*/
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export function updateViewOnPan(controllerHost, dx, dy) {
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var target = controllerHost.target;
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target.x += dx;
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target.y += dy;
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target.dirty();
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}
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/**
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* For geo and graph.
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*/
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export function updateViewOnZoom(controllerHost, zoomDelta, zoomX, zoomY) {
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var target = controllerHost.target;
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var zoomLimit = controllerHost.zoomLimit;
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var newZoom = controllerHost.zoom = controllerHost.zoom || 1;
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newZoom *= zoomDelta;
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if (zoomLimit) {
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var zoomMin = zoomLimit.min || 0;
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var zoomMax = zoomLimit.max || Infinity;
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newZoom = Math.max(Math.min(zoomMax, newZoom), zoomMin);
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}
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var zoomScale = newZoom / controllerHost.zoom;
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controllerHost.zoom = newZoom;
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// Keep the mouse center when scaling
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target.x -= (zoomX - target.x) * (zoomScale - 1);
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target.y -= (zoomY - target.y) * (zoomScale - 1);
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target.scaleX *= zoomScale;
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target.scaleY *= zoomScale;
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target.dirty();
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}
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