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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
/***************************************************************************
* $Id: statgraph.cpp,v 1.7 2008/07/31 19:56:26 hoganrobert Exp $
* Copyright (C) 2006 - 2008 Robert Hogan *
* robert@roberthogan.net *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
/***************************************************************************
* *
* KCPULoad and KNetLoad are copyright (c) 1999-2000, Markus Gustavsson *
* (c) 2002, Ben Burton *
* (c) 2004-2005, Diego Pettenò *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "statgraph.h"
#include <ntqpainter.h>
#include <ntqlabel.h>
#include <kdebug.h>
#define SOFT_STEP 3
const TQColor StatGraph::defaultBgColor = TQt::black;
const TQColor StatGraph::defaultReadingColor = TQt::yellow;
const TQColor StatGraph::defaultLabelColor = TQt::white;
const TQColor StatGraph::defaultGridColor = TQt::lightGray;
/// Color used to pass transparent colors
//const TQColor StatGraph::invalidColor = TQColor(-1, -1, -1);
StatGraph::StatGraph(TQWidget *parent, ushort pace, ushort gridPace, const TQString &label, const TQColor &bgColor, const char *name)
: TQLabel(parent, name), m_style(Shades), m_gridPace(gridPace), m_pace(pace)
{
setLabel(label);
setBgColor(bgColor);
m_numReadings = width() / pace;
m_currReading = 0;
m_readings = new uint[m_numReadings]; memset(m_readings, 0, m_numReadings*sizeof(uint));
}
StatGraph::~StatGraph()
{
delete[] m_readings;
}
void StatGraph::setBgColor(const TQColor &color)
{
m_bgColor = color;
if ( m_bgColor.isValid() )
setBackgroundColor(m_bgColor);
}
inline void StatGraph::paintGrid(TQPainter &p)
{
p.setPen(m_gridColor);
const uint gridLines = height() / m_gridPace;
static uint graphWidth = width();
for(uint i = 0; i < gridLines; i++)
{
const int lineHeight = i*m_gridPace;
p.drawLine(0, lineHeight, graphWidth-1, lineHeight);
}
}
inline void StatGraph::paintShades(TQPainter &p)
{
//kdDebug() << "StatGraph::paintShades()" << endl;
const uint graphHeight = height();
for(uint i = 0; i < m_numReadings; i++)
{
ushort tmpPos = (m_currReading + i + 1) % m_numReadings;
if ( m_readings[tmpPos] > graphHeight )
m_readings[tmpPos] = graphHeight;
for(uint j = 0; j < m_readings[tmpPos]; j++)
{
if (m_readings[tmpPos] == 0 || j == 0)
p.setPen(m_bgColor);
else
p.setPen(m_readingColor.dark((100 * m_readings[tmpPos]) / j));
p.drawPoint(i, graphHeight - 1 - j);
}
}
}
inline void StatGraph::paintBars(TQPainter &p)
{
//kdDebug() << "StatGraph::paintBars()" << endl;
const uint graphHeight = height();
// Draw the readings bars, then the lower to save on pen adjustments.
p.setPen(m_readingColor);
for(uint i = 0; i < m_numReadings; i++)
{
ushort tmpPos = (m_currReading + i + 1) % m_numReadings;
p.drawLine(i, graphHeight - 1 - m_readings[tmpPos], i, graphHeight - 1);
}
}
inline void StatGraph::paintLines(TQPainter &p)
{
//kdDebug() << "StatGraph::paintLines()" << endl;
const uint graphHeight = height();
// Draw the reading line, then the lower to save on pen adjustments.
p.setPen(m_readingColor);
for(uint i = 0; i < m_numReadings; i++)
{
ushort tmpPos = (m_currReading + i + 1) % m_numReadings;
p.drawPoint(i, graphHeight - 1 - m_readings[tmpPos]);
}
}
inline void StatGraph::paintLabel(TQPainter &p)
{
//kdDebug() << "StatGraph::paintLabel()" << endl;
p.setFont(TQFont("Helvetica", 8));
p.setPen(m_labelColor);
p.drawText(rect(), AlignLeft | AlignTop, m_label);
}
void StatGraph::clear()
{
memset(m_readings, 0, m_numReadings*sizeof(uchar));
update();
}
void StatGraph::addPercentReading(uchar reading, bool soft)
{
//kdDebug() << "StatGraph::addPercentReading(" << (uint)reading << ", " << soft << ")" << endl;
// Rescale the readings to a measure in pixels.
uint pix = ( reading * height() )/100;
if ( soft )
softenReadings(pix);
m_currReading = (m_currReading+1) % m_numReadings;
m_readings[m_currReading] = pix;
update();
update();
}
void StatGraph::softenReadings(uint &reading)
{
//kdDebug() << "StatGraph::softenReadings(" << reading << ")" << endl;
uint old = m_readings[m_currReading];
// Modify the reading.
if (reading > old + SOFT_STEP)
reading = old + SOFT_STEP;
else if (reading > SOFT_STEP && reading < old - SOFT_STEP)
reading = old - SOFT_STEP;
}
void StatGraph::resizeEvent(TQResizeEvent *e)
{
TQLabel::resizeEvent(e);
uint oldNumReadings = m_numReadings;
m_numReadings = width() / m_pace;
if ( m_numReadings != oldNumReadings )
{
uint *oldReadings = m_readings;
m_readings = new uint[m_numReadings];
memset(m_readings, 0, m_numReadings*sizeof(uint));
if ( m_numReadings < oldNumReadings )
memcpy(m_readings, oldReadings, m_numReadings*sizeof(uint));
else
memcpy(m_readings, oldReadings, oldNumReadings*sizeof(uint));
delete oldReadings;
m_currReading %= m_numReadings;
}
}
void StatGraph::paintEvent(TQPaintEvent *e)
{
TQLabel::paintEvent(e);
if ( ! m_readingColor.isValid() ) m_readingColor = defaultReadingColor;
if ( ! m_labelColor.isValid() ) m_labelColor = defaultLabelColor;
if ( ! m_gridColor.isValid() ) m_gridColor = defaultGridColor;
TQPainter p(this);
if ( m_gridPace )
paintGrid(p);
switch(m_style)
{
case Shades:
paintShades(p); break;
case Bars:
paintBars(p); break;
case Lines:
paintLines(p); break;
default:
kdDebug() << "Unknown style " << m_style << endl;
}
if ( ! m_label.isNull() )
paintLabel(p);
}
void StatGraph::mousePressEvent(TQMouseEvent *e)
{
TQLabel::mousePressEvent(e);
m_button = e->button();
}
void StatGraph::mouseReleaseEvent(TQMouseEvent *e)
{
TQLabel::mouseReleaseEvent(e);
if ( m_button == e->button() )
{
switch(m_button)
{
case LeftButton:
emit clickedLeft();
break;
case RightButton:
emit clickedRight();
break;
default:
kdDebug() << "Unknown button combination" << endl;
}
}
m_button = TQt::NoButton;
}
#include "statgraph.moc"
|
