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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
#define Uses_stdlib
#define Uses_ctype
#define Uses_unistd
#define Uses_string
#define Uses_TStaticText
#define Uses_TStatusDef
#define Uses_TStatusItem
#define Uses_TStatusLine
#define Uses_TEventQueue
#define Uses_TRect
#define Uses_TDeskTop
#define Uses_TView
#define Uses_TWindow
#define Uses_TDialog
#define Uses_TButton
#define Uses_StaticText
#define Uses_TSItem
#define Uses_TEvent
#define Uses_TKeys
#define Uses_TDrawBuffer
#define Uses_TStreamableClass
#include <tv.h>
__link( RView )
__link( RDialog )
__link( RButton )
#include "tprogbar.h"
const int sampleIterations = 21 ;
TProgressBar::TProgressBar(const TRect& r, unsigned long iters ) : TView ( r )
{
options |= ofSelectable;
eventMask = (evKeyboard | evBroadcast);
maxWidth = DISPLAYLEN ;//- 1 ; // newWidth; // maximum width of thermometer bar
curWidth = 0; // current width of percentage bar
oldWidth = 0; // old width of percentage bar
chPercent = 100.0/maxWidth; // percent per character
maxIter = iters ; // maximum iteration
curIter = 0; // current iteration
oldPercent = 0; // old percentage
curPercent = 0; // current percentage
backChar = '°'; // background character
percChar = '²'; // foreground character
bar = new char[ maxWidth + 1];
memset( bar, backChar, maxWidth );
bar[ maxWidth ] = '\0';
}
TProgressBar::~TProgressBar()
{
delete bar ;
}
void TProgressBar::handleEvent(TEvent& event)
{
TView::handleEvent(event);
switch(event.what)
{
case evKeyboard:
mainProcess() ;
break;
case evBroadcast:
if(event.message.command == cmOK)
mainProcess() ;
break;
}
clearEvent(event);
}
void TProgressBar::draw()
{
char color = getColor(1);
TDrawBuffer nbuf;
nbuf.moveChar(0,' ',color,size.x);
nbuf.moveStr( 0, bar, color ) ;
writeLine(0, 0, size.x, 1, nbuf);
}
void TProgressBar::mainProcess( void )
{
unsigned long cnt = 0 ;
for( int x = 0; x < sampleIterations; x++ )
{
setCurIter( ++cnt ); // set the current iteration count & update
usleep(500000);
}
usleep(500000);
message(owner,evCommand,cmOK,this);// close dialog box
}
void TProgressBar::calcPercent ( )
{
unsigned int percent;
unsigned int width;
unsigned i;
// calculate the new percentage
percent = (int) ( ( (double)curIter / (double)maxIter ) * (double)100 );
// percentage change?
if ( percent != curPercent )
{
oldPercent = curPercent; // save current percentage
curPercent = percent; // save new percentage
width = (int)(curPercent / chPercent);// calculate percentage bar width
// width change?
if ( width != curWidth )
{
oldWidth = curWidth; // save the current width
curWidth = width; // save new width
// update the bar string
if ( oldWidth < curWidth )
{
for ( i = oldWidth; i < curWidth; i++ )
{
bar[i] = percChar;
}
}
else
{
for ( i = curWidth; i < oldWidth; i++ )
{
bar[i] = backChar;
}
}
}
}
}
// terminate the thermometer bar display
void TProgressBar::term ( )
{
}
// return the maximum iteration
unsigned long TProgressBar::getMaxIter ( )
{
return ( maxIter );
}
// return the current iteration
unsigned long TProgressBar::getCurIter ( )
{
return ( curIter );
}
// set a new maximum iteration & update display
void TProgressBar::setMaxIter ( unsigned long newMax )
{
unsigned long tmp = maxIter;
maxIter = newMax;
memset( bar, backChar, maxWidth );
curWidth = 0; // current width of percentage bar
oldWidth = 0; // old width of percentage bar
curIter = 0; // current iteration
oldPercent = 0; // old percentage
curPercent = 0; // current percentage
if ( tmp ) // since it starts with 0, only update if changing
{
drawView(); // update the thermometer bar display
}
}
// set a new current iteration & update display
void TProgressBar::setCurIter ( unsigned long newCur )
{
curIter = newCur;
calcPercent();
// width change?
if ( curPercent != oldPercent )
{
drawView(); // paint the thermometer bar
}
}
|
