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
|
/**********************************************************************
** Copyright (C) 2002 Michael 'Mickey' Lauer. All rights reserved.
**
** This file is part of Opie Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
**********************************************************************/
#include "graphwindow.h"
#include <qpainter.h>
#include <qpixmap.h>
#include <qtimer.h>
MFrequencySpectrum::MFrequencySpectrum( int channels, QWidget* parent, const char* name, WFlags f)
:QWidget( parent, name,f ), _channels( channels )
{
_values = new int[_channels];
_dirty = new bool[_channels];
for ( int i = 0; i < channels; ++i )
{ _values[i] = 0;
_dirty[i] = true;
}
// we draw everything on our own
setBackgroundMode( QWidget::NoBackground );
}
void MFrequencySpectrum::drawTopLine( QPainter* p, int x, int y, int width, const QColor& c )
{
p->setPen( c.light() );
p->drawLine( x, y, x+width-1, y );
}
void MFrequencySpectrum::drawBottomLine( QPainter* p, int x, int y, int width, const QColor& c )
{
p->setPen( c.dark() );
p->drawLine( x, y, x+width-1, y );
}
void MFrequencySpectrum::drawLine( QPainter* p, int x, int y, int width, const QColor& c )
{
p->setPen( c.light() );
p->drawPoint( x++, y );
p->setPen( c );
p->drawLine( x, y, x+width-2, y );
p->setPen( c.dark() );
p->drawPoint( x+width-1, y );
}
void MFrequencySpectrum::drawBar( QPainter* p, int x, int y, int width, int height, int maxheight )
{
int h1 = 133; int h2 = 0;
int s1 = 200; int s2 = 255;
int v1 = 140; int v2 = 255;
/*int h1 = 196; int h2 = 194;
int s1 = 85; int s2 = 15;
int v1 = 95; int v2 = 237;*/
QColor c( 120, 60, 200 );
for ( int i = 0; i < height; ++i )
{
int h = (h2-h1)*i/maxheight + h1;
int s = (s2-s1)*i/maxheight + s1;
int v = (v2-v1)*i/maxheight + v1;
if ( i == 0 )
drawBottomLine( p, x, y-i, width, QColor( h,s,v, QColor::Hsv ) );
else if ( i == height-1 )
drawTopLine( p, x, y-i, width, QColor( h,s,v, QColor::Hsv ) );
else
drawLine( p, x, y-i, width, QColor( h,s,v, QColor::Hsv ) );
}
}
void MFrequencySpectrum::paintEvent( QPaintEvent* e )
{
QPixmap pm( size() );
QPainter p;
p.begin( &pm );
p.drawTiledPixmap( 0, 0, size().width(), size().height(), QPixmap( (const char**) &background ) );
int xmargin = 5;
int ymargin = 2;
int y = size().height() - 2 * ymargin;
int x = 0;
int width = ( size().width() - 2 * xmargin ) / _channels;
for ( int i = 0; i < _channels; ++i )
{
if ( _dirty[i] )
{
drawBar( &p, xmargin + x, y - ymargin, width-3, _values[i]*y/100, y );
_dirty[i] = false;
}
x+= width;
}
p.end();
bitBlt( this, 0, 0, &pm );
}
void MFrequencySpectrum::mousePressEvent( QMouseEvent* e )
{
int xmargin = 5;
int ymargin = 2;
int y = size().height() - 2 * ymargin;
int x = 0;
int width = ( size().width() - 2 * xmargin ) / _channels;
QPoint pos = e->pos();
int channel = ( pos.x()-xmargin ) / width;
int height = 100 - ( pos.y()-ymargin )*100/y;
if ( channel < 15 ) _values[channel] = height;
}
Legende::Legende( int channels, QWidget* parent, const char* name, WFlags f )
:QFrame( parent, name, f ), _channels( channels )
{
setLineWidth( 2 );
setFrameStyle( Panel + Sunken );
setFixedHeight( 16 );
}
void Legende::drawContents( QPainter* p )
{
int xmargin = 5;
int ymargin = 2;
int x = 0;
int width = ( contentsRect().width() - 2 * xmargin ) / _channels;
for ( int i = 0; i < _channels; ++i )
p->drawText( xmargin + (width*i), 12, QString().sprintf( "%02d", i+1 ) );
}
MGraphWindow::MGraphWindow( QWidget* parent, const char* name, WFlags f )
:QVBox( parent, name, f )
{
spectrum = new MFrequencySpectrum( 14, this );
legende = new Legende( 14, this );
startTimer( 50 );
};
void MGraphWindow::testGraph()
{
static int i = 0;
spectrum->setValue( i++, 100 );
if ( i == 14 ) i = 0;
QTimer::singleShot( 2000, this, SLOT( testGraph() ) );
}
void MGraphWindow::timerEvent( QTimerEvent* e )
{
for ( int i = 0; i < 14; i++ )
{
spectrum->decrease( i, 1 );
}
spectrum->repaint();
}
void MGraphWindow::traffic( int channel, int signal )
{
spectrum->setValue( channel-1, signal );
}
|
