Classes

Class	Line #	Total Statements	Complexity	TOTAL Coverage	Actions
Slider	36	15	7	0.00%	Show methods

Class Slider

Class Slider	Line # 36	Total Statements 15	Complexity 7	TOTAL Coverage 0.00%
Slider(float,float,float)   Slider(float,float,float)	6767	2.02	1.01	0.0 0.00%
setSliderModel(float,float,float) : void   setSliderModel(float,float,float) : void	8181	7.07	1.01	0.0 0.00%
getSliderValue() : float   getSliderValue() : float	9797	2.02	2.02	0.0 0.00%
setSliderValue(float) : void   setSliderValue(float) : void	112112	1.01	1.01	0.0 0.00%
getSliderPercentageValue() : float   getSliderPercentageValue() : float	123123	1.01	1.01	0.0 0.00%
setSliderPercentageValue(float) : void   setSliderPercentageValue(float) : void	134134	2.02	1.01	0.0 0.00%

 

Contributing tests

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1		/*
2		* Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3		* Copyright (C) $$Year-Rel$$ The Jalview Authors
4		*
5		* This file is part of Jalview.
6		*
7		* Jalview is free software: you can redistribute it and/or
8		* modify it under the terms of the GNU General Public License
9		* as published by the Free Software Foundation, either version 3
10		* of the License, or (at your option) any later version.
11		*
12		* Jalview is distributed in the hope that it will be useful, but
13		* WITHOUT ANY WARRANTY; without even the implied warranty
14		* of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15		* PURPOSE. See the GNU General Public License for more details.
16		*
17		* You should have received a copy of the GNU General Public License
18		* along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19		* The Jalview Authors are detailed in the 'AUTHORS' file.
20		*/
21		package jalview.gui;
22
23		import javax.swing.JSlider;
24
25		/**
26		* A modified {@code javax.swing.JSlider} that
27		* <ul>
28		* <li>supports float valued numbers (by scaling up integer values)</li>
29		* <li>rescales 'true' value range to avoid negative values, as these are not
30		* rendered correctly by some look and feel libraries</li>
31		* </ul>
32		*
33		* @author gmcarstairs
34		*/
35		@SuppressWarnings("serial")
		0% Uncovered Elements: 23 (23) Complexity: 7 Complexity Density: 0.47
36		public class Slider extends JSlider
37		{
38		/*
39		* the number of nominal positions the slider represents
40		* (higher number = more fine-grained positioning)
41		*/
42		private static final int SCALE_TICKS = 1000;
43
44		/*
45		* 'true' value corresponding to zero on the slider
46		*/
47		private float trueMin;
48
49		/*
50		* 'true' value corresponding to slider maximum
51		*/
52		private float trueMax;
53
54		/*
55		* scaleFactor applied to true value range to give a
56		* slider range of 0 - 100
57		*/
58		private float sliderScaleFactor;
59
60		/**
61		* Constructor that rescales min - max to 0 - 100 for the slider
62		*
63		* @param min
64		* @param max
65		* @param value
66		*/
		0% Uncovered Elements: 2 (2) Complexity: 1 Complexity Density: 0.5
67	0	public Slider(float min, float max, float value)...
68		{
69	0	super();
70	0	setSliderModel(min, max, value);
71		}
72
73		/**
74		* Sets the min-max range and current value of the slider, with rescaling from
75		* true values to slider range as required
76		*
77		* @param min
78		* @param max
79		* @param value
80		*/
		0% Uncovered Elements: 7 (7) Complexity: 1 Complexity Density: 0.14
81	0	public void setSliderModel(float min, float max, float value)...
82		{
83	0	trueMin = min;
84	0	trueMax = max;
85	0	setMinimum(0);
86	0	sliderScaleFactor = SCALE_TICKS / (max - min);
87	0	int sliderMax = (int) ((max - min) * sliderScaleFactor);
88	0	setMaximum(sliderMax);
89	0	setSliderValue(value);
90		}
91
92		/**
93		* Answers the value of the slider position (descaled to 'true' value)
94		*
95		* @return
96		*/
		0% Uncovered Elements: 4 (4) Complexity: 2 Complexity Density: 1
97	0	public float getSliderValue()...
98		{
99		/*
100		* convert slider max to 'true max' in case of rounding errors
101		*/
102	0	int value = getValue();
103	0	return value == getMaximum() ? trueMax
104		: value / sliderScaleFactor + trueMin;
105		}
106
107		/**
108		* Sets the slider value (scaled from the true value to the slider range)
109		*
110		* @param value
111		*/
		0% Uncovered Elements: 1 (1) Complexity: 1 Complexity Density: 1
112	0	public void setSliderValue(float value)...
113		{
114	0	setValue(Math.round((value - trueMin) * sliderScaleFactor));
115		}
116
117		/**
118		* Answers the value of the slider position as a percentage between minimum
119		* and maximum of its range
120		*
121		* @return
122		*/
		0% Uncovered Elements: 1 (1) Complexity: 1 Complexity Density: 1
123	0	public float getSliderPercentageValue()...
124		{
125	0	return (getValue() - getMinimum()) * 100f
126		/ (getMaximum() - getMinimum());
127		}
128
129		/**
130		* Sets the slider position for a given percentage value of its min-max range
131		*
132		* @param pct
133		*/
		0% Uncovered Elements: 2 (2) Complexity: 1 Complexity Density: 0.5
134	0	public void setSliderPercentageValue(float pct)...
135		{
136	0	float pc = pct / 100f * getMaximum();
137	0	setValue((int) pc);
138		}
139		}