forked from vbohush/SortingAlgorithmAnimations
-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathQuickSortPanel.java
More file actions
128 lines (115 loc) · 3.88 KB
/
QuickSortPanel.java
File metadata and controls
128 lines (115 loc) · 3.88 KB
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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
import java.awt.Color;
import java.awt.Graphics;
public class QuickSortPanel extends SortPanel {
private static final long serialVersionUID = 1L;
private int redColumn = -1;
private int blueColumn = -1;
private int cyanColumn = -1;
private int greenColumn = -1;
public QuickSortPanel(String name, int sleepTime, int width, int height) {
super(name, sleepTime, width, height);
}
@Override
public void reset() {
redColumn = -1;
blueColumn = -1;
greenColumn = -1;
cyanColumn = -1;
}
@Override
public void run() {
try {
quicksort(0, list.length - 1);
} catch (InterruptedException e) {
}
redColumn = -1;
blueColumn = -1;
cyanColumn = -1;
greenColumn = size - 1;
repaint();
}
private void quicksort(int low, int high) throws InterruptedException {
int i = low;
int j = high;
Thread.sleep(sleepTime);
repaint();
int pivot = list[low + (high - low) / 2];
redColumn = low + (high - low) / 2;
while (i <= j) {
while (list[i] < pivot) {
i++;
blueColumn = i;
Thread.sleep(4 * sleepTime);
repaint();
}
while (list[j] > pivot) {
j--;
cyanColumn = j;
Thread.sleep(4 * sleepTime);
repaint();
}
if (i <= j) {
int temp = list[i];
list[i] = list[j];
list[j] = temp;
if(i == redColumn) {
redColumn = j;
} else if (j == redColumn) {
redColumn = i;
}
Thread.sleep(4 * sleepTime);
repaint();
i++;
j--;
}
}
if (low < j) {
quicksort(low, j);
}
if (i < high) {
quicksort(i, high);
}
if(low > greenColumn) {
greenColumn = low;
blueColumn = -1;
cyanColumn = -1;
}
repaint();
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
int columnWidth = (getWidth() - 4 * BORDER_WIDTH) / size;
int columnHeight = (getHeight() - 4 * BORDER_WIDTH) / size;
for (int i = (greenColumn == -1 ? 0 : greenColumn); i < list.length; i++) {
g.setColor(Color.WHITE);
g.fillRect(2 * BORDER_WIDTH + columnWidth * i, getHeight() - list[i] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[i] * columnHeight);
g.setColor(Color.BLACK);
g.drawRect(2 * BORDER_WIDTH + columnWidth * i, getHeight() - list[i] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[i] * columnHeight);
}
for (int i = 0; i <= greenColumn; i++) {
g.setColor(Color.GREEN);
g.fillRect(2 * BORDER_WIDTH + columnWidth * i, getHeight() - list[i] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[i] * columnHeight);
g.setColor(Color.BLACK);
g.drawRect(2 * BORDER_WIDTH + columnWidth * i, getHeight() - list[i] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[i] * columnHeight);
}
if(redColumn != -1) {
g.setColor(Color.RED);
g.fillRect(2 * BORDER_WIDTH + columnWidth * redColumn, getHeight() - list[redColumn] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[redColumn] * columnHeight);
g.setColor(Color.BLACK);
g.drawRect(2 * BORDER_WIDTH + columnWidth * redColumn, getHeight() - list[redColumn] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[redColumn] * columnHeight);
}
if(blueColumn != -1) {
g.setColor(Color.BLUE);
g.fillRect(2 * BORDER_WIDTH + columnWidth * blueColumn, getHeight() - list[blueColumn] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[blueColumn] * columnHeight);
g.setColor(Color.BLACK);
g.drawRect(2 * BORDER_WIDTH + columnWidth * blueColumn, getHeight() - list[blueColumn] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[blueColumn] * columnHeight);
}
if(cyanColumn != -1) {
g.setColor(Color.CYAN);
g.fillRect(2 * BORDER_WIDTH + columnWidth * cyanColumn, getHeight() - list[cyanColumn] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[cyanColumn] * columnHeight);
g.setColor(Color.BLACK);
g.drawRect(2 * BORDER_WIDTH + columnWidth * cyanColumn, getHeight() - list[cyanColumn] * columnHeight - 2 * BORDER_WIDTH, columnWidth, list[cyanColumn] * columnHeight);
}
}
}