plugins/images/src/org/intellij/images/editor/ImageZoomModel.java

   1 /*
   2  * Copyright 2004-2005 Alexey Efimov
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.intellij.images.editor;
  17
  18 /**
  19  * Location model presents bounds of image.
  20  * The zoom it calculated as y = exp(x/2).
  21  *
  22  * @author <a href="mailto:aefimov.box@gmail.com">Alexey Efimov</a>
  23  */
  24 public interface ImageZoomModel {
  25     int MACRO_ZOOM_LIMIT = 32;
  26     int MICRO_ZOOM_LIMIT = 8;
  27
  28     double getZoomFactor();
  29
  30     void setZoomFactor(double zoomFactor);
  31
  32     void zoomOut();
  33
  34     void zoomIn();
  35
  36     boolean canZoomOut();
  37
  38     boolean canZoomIn();
  39
  40     boolean isZoomLevelChanged();
  41 }