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
|
/* This file is part of the KDE Project
Copyright (C) 2000 Klaas Freitag <freitag@suse.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <qpainter.h>
#include <qpixmap.h>
#include "dispgamma.h"
DispGamma::DispGamma( QWidget *parent ) : QWidget( parent )
{
vals = 0;
margin = 10;
}
DispGamma::~DispGamma()
{
}
void DispGamma::resizeEvent (QResizeEvent* )
{
repaint();
}
void DispGamma::paintEvent( QPaintEvent *ev )
{
QPainter p(this);
int w = vals->size() +1;
// Viewport auf margin setzen.
p.setViewport( margin, margin, width() - margin, height() - margin );
p.setWindow( 0, 255, w, -256 );
p.setClipRect( ev->rect());
p.setPen( colorGroup().highlight() );
p.setBrush( colorGroup().base() );
// Backgrond
p.drawRect( 0,0, w, 256 );
p.setPen( QPen(colorGroup().midlight(), 1, DotLine));
// horizontal Grid
for( int l = 1; l < 5; l++ )
p.drawLine( 1, l*51, 255, l*51 );
// vertical Grid
for( int l = 1; l < 5; l++ )
p.drawLine( l*51, 2, l*51, 255 );
// draw gamma-Line
p.setPen( colorGroup().highlight() );
p.moveTo( 1, vals->at(1) );
for( int i = 2; i < w-1; i++ )
{
p.lineTo( i, vals->at(i) );
}
p.flush();
}
QSize DispGamma::sizeHint( void )
{
return QSize( 256 + 2*margin,256 + 2 * margin );
}
QSizePolicy DispGamma::sizePolicy( void )
{
return QSizePolicy( QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding );
}
#include "dispgamma.moc"
|
