-
Notifications
You must be signed in to change notification settings - Fork 377
/
Renderer.java
80 lines (73 loc) · 3.04 KB
/
Renderer.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
/*
* The MIT License (MIT)
*
* Copyright (c) 2016 Cleveroad
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.cleveroad.slidingtutorial;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.support.annotation.NonNull;
/**
* Class responds for drawing indicator
*/
public interface Renderer {
/**
* Draw single indicator on {@link Canvas}.
*
* @param canvas canvas for drawing
* @param paint paint for drawing
* @param isActive is current indicator item activated
*/
void draw(@NonNull Canvas canvas, @NonNull RectF elementBounds, @NonNull Paint paint, boolean isActive);
class Factory {
/**
* Provide {@link Renderer} implementation for drawing circle shape indicators.
* Used by default in {@link IndicatorOptions#provideDefault(Context)}.
*
* @return {@link Renderer} implementation.
*/
public static Renderer newCircleRenderer() {
return new Renderer() {
@Override
public void draw(@NonNull Canvas canvas, @NonNull RectF elementBounds, @NonNull Paint paint, boolean isActive) {
float radius = Math.min(elementBounds.width(), elementBounds.height());
radius /= 2f;
canvas.drawCircle(elementBounds.centerX(), elementBounds.centerY(), radius, paint);
}
};
}
/**
* Provide {@link Renderer} implementation for drawing square shape indicators.
*
* @return {@link Renderer} implementation.
*/
public static Renderer newSquareRenderer() {
return new Renderer() {
@Override
public void draw(@NonNull Canvas canvas, @NonNull RectF elementBounds, @NonNull Paint paint, boolean isActive) {
canvas.drawRect(elementBounds, paint);
}
};
}
}
}