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1 | | -// MIT License |
2 | | - |
3 | | -// Copyright (c) 2023 Douglas Nassif Roma Junior |
4 | | - |
5 | | -// Permission is hereby granted, free of charge, to any person obtaining a copy |
6 | | -// of this software and associated documentation files (the "Software"), to deal |
7 | | -// in the Software without restriction, including without limitation the rights |
8 | | -// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
9 | | -// copies of the Software, and to permit persons to whom the Software is |
10 | | -// furnished to do so, subject to the following conditions: |
11 | | - |
12 | | -// The above copyright notice and this permission notice shall be included in all |
13 | | -// copies or substantial portions of the Software. |
14 | | - |
15 | | -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
16 | | -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17 | | -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
18 | | -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
19 | | -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
20 | | -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
21 | | -// SOFTWARE. |
22 | | - |
23 | | -package com.github.douglasjunior.reactNativePdfRenderer.modules; |
24 | | - |
25 | | -import java.util.HashSet; |
26 | | -import java.util.Set; |
27 | | - |
28 | | -public class ObservableZoom { |
29 | | - private final Set<ZoomChangeListener> listeners = new HashSet<>(); |
30 | | - private float zoom; |
31 | | - |
32 | | - public ObservableZoom(int initialZoom) { |
33 | | - this.zoom = initialZoom; |
34 | | - } |
35 | | - |
36 | | - public void addListener(ZoomChangeListener listener) { |
37 | | - this.listeners.add(listener); |
38 | | - } |
39 | | - |
40 | | - public void removeListener(ZoomChangeListener zoomListener) { |
41 | | - this.listeners.remove(zoomListener); |
42 | | - } |
43 | | - |
44 | | - private void notifyListeners() { |
45 | | - for (ZoomChangeListener listener : listeners) { |
46 | | - listener.onZoomChange(this.zoom); |
47 | | - } |
48 | | - } |
49 | | - |
50 | | - public float getZoom() { |
51 | | - return zoom; |
52 | | - } |
53 | | - |
54 | | - public void setZoom(float newZoom) { |
55 | | - if (newZoom == this.zoom) return; |
56 | | - this.zoom = newZoom; |
57 | | - notifyListeners(); |
58 | | - } |
59 | | - |
60 | | - public interface ZoomChangeListener { |
61 | | - void onZoomChange(float newZoom); |
62 | | - } |
63 | | -} |
| 1 | +// MIT License |
| 2 | + |
| 3 | +// Copyright (c) 2023 Douglas Nassif Roma Junior |
| 4 | + |
| 5 | +// Permission is hereby granted, free of charge, to any person obtaining a copy |
| 6 | +// of this software and associated documentation files (the "Software"), to deal |
| 7 | +// in the Software without restriction, including without limitation the rights |
| 8 | +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 9 | +// copies of the Software, and to permit persons to whom the Software is |
| 10 | +// furnished to do so, subject to the following conditions: |
| 11 | + |
| 12 | +// The above copyright notice and this permission notice shall be included in all |
| 13 | +// copies or substantial portions of the Software. |
| 14 | + |
| 15 | +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 18 | +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 21 | +// SOFTWARE. |
| 22 | + |
| 23 | +package com.github.douglasjunior.reactNativePdfRenderer.modules; |
| 24 | + |
| 25 | +import java.util.HashSet; |
| 26 | +import java.util.Set; |
| 27 | + |
| 28 | +public class ObservableZoom { |
| 29 | + private final Set<ZoomChangeListener> listeners = new HashSet<>(); |
| 30 | + private float zoom; |
| 31 | + |
| 32 | + public ObservableZoom(int initialZoom) { |
| 33 | + this.zoom = initialZoom; |
| 34 | + } |
| 35 | + |
| 36 | + public void addListener(ZoomChangeListener listener) { |
| 37 | + this.listeners.add(listener); |
| 38 | + } |
| 39 | + |
| 40 | + public void removeListener(ZoomChangeListener zoomListener) { |
| 41 | + this.listeners.remove(zoomListener); |
| 42 | + } |
| 43 | + |
| 44 | + private void notifyListeners() { |
| 45 | + for (ZoomChangeListener listener : listeners) { |
| 46 | + listener.onZoomChange(this.zoom); |
| 47 | + } |
| 48 | + } |
| 49 | + |
| 50 | + public float getZoom() { |
| 51 | + return zoom; |
| 52 | + } |
| 53 | + |
| 54 | + public void setZoom(float newZoom) { |
| 55 | + if (newZoom == this.zoom) return; |
| 56 | + this.zoom = newZoom; |
| 57 | + notifyListeners(); |
| 58 | + } |
| 59 | + |
| 60 | + public interface ZoomChangeListener { |
| 61 | + void onZoomChange(float newZoom); |
| 62 | + } |
| 63 | +} |
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