author | kergoth <kergoth> | 2002-01-25 22:14:26 (UTC) |
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committer | kergoth <kergoth> | 2002-01-25 22:14:26 (UTC) |
commit | 15318cad33835e4e2dc620d033e43cd930676cdd (patch) (unidiff) | |
tree | c2fa0399a2c47fda8e2cd0092c73a809d17f68eb /core/settings/citytime/stylusnormalizer.cpp | |
download | opie-15318cad33835e4e2dc620d033e43cd930676cdd.zip opie-15318cad33835e4e2dc620d033e43cd930676cdd.tar.gz opie-15318cad33835e4e2dc620d033e43cd930676cdd.tar.bz2 |
Initial revision
Diffstat (limited to 'core/settings/citytime/stylusnormalizer.cpp') (more/less context) (show whitespace changes)
-rw-r--r-- | core/settings/citytime/stylusnormalizer.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/core/settings/citytime/stylusnormalizer.cpp b/core/settings/citytime/stylusnormalizer.cpp new file mode 100644 index 0000000..62de28b --- a/dev/null +++ b/core/settings/citytime/stylusnormalizer.cpp | |||
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1 | /********************************************************************** | ||
2 | ** Copyright (C) 2000 Trolltech AS. All rights reserved. | ||
3 | ** | ||
4 | ** This file is part of Qtopia Environment. | ||
5 | ** | ||
6 | ** This file may be distributed and/or modified under the terms of the | ||
7 | ** GNU General Public License version 2 as published by the Free Software | ||
8 | ** Foundation and appearing in the file LICENSE.GPL included in the | ||
9 | ** packaging of this file. | ||
10 | ** | ||
11 | ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE | ||
12 | ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | ||
13 | ** | ||
14 | ** See http://www.trolltech.com/gpl/ for GPL licensing information. | ||
15 | ** | ||
16 | ** Contact info@trolltech.com if any conditions of this licensing are | ||
17 | ** not clear to you. | ||
18 | ** | ||
19 | **********************************************************************/ | ||
20 | |||
21 | #include <qpoint.h> | ||
22 | #include <qtimer.h> | ||
23 | |||
24 | #include "stylusnormalizer.h" | ||
25 | |||
26 | static const int FLUSHTIME = 100; | ||
27 | |||
28 | _StylusEvent::_StylusEvent( const QPoint& newPt ) | ||
29 | : _pt( newPt ), | ||
30 | _t( QTime::currentTime() ) | ||
31 | { | ||
32 | } | ||
33 | |||
34 | _StylusEvent::~_StylusEvent() | ||
35 | { | ||
36 | } | ||
37 | |||
38 | StylusNormalizer::StylusNormalizer( QWidget *parent, const char* name ) | ||
39 | : QWidget( parent, name ), | ||
40 | _next( 0 ), | ||
41 | bFirst( true ) | ||
42 | { | ||
43 | // initialize _ptList | ||
44 | int i; | ||
45 | for (i = 0; i < SAMPLES; i++ ) { | ||
46 | _ptList[i].setPoint( -1, -1 ); | ||
47 | } | ||
48 | _tExpire = new QTimer( this ); | ||
49 | QObject::connect( _tExpire, SIGNAL( timeout() ), | ||
50 | this, SLOT( slotAveragePoint() ) ); | ||
51 | } | ||
52 | |||
53 | StylusNormalizer::~StylusNormalizer() | ||
54 | { | ||
55 | } | ||
56 | |||
57 | void StylusNormalizer::addEvent( const QPoint& pt ) | ||
58 | { | ||
59 | _ptList[_next].setPoint( pt ); | ||
60 | _ptList[_next++].setTime( QTime::currentTime() ); | ||
61 | if ( _next >= SAMPLES ) { | ||
62 | _next = 0; | ||
63 | } | ||
64 | // make a single mouse click work | ||
65 | if ( bFirst ) { | ||
66 | slotAveragePoint(); | ||
67 | bFirst = false; | ||
68 | } | ||
69 | } | ||
70 | |||
71 | void StylusNormalizer::slotAveragePoint( void ) | ||
72 | { | ||
73 | QPoint pt( 0, 0 ); | ||
74 | QTime tCurr = QTime::currentTime(); | ||
75 | int i, | ||
76 | size; | ||
77 | size = 0; | ||
78 | for ( i = 0; i < SAMPLES; i++ ) { | ||
79 | if ( ( (_ptList[i]).time().msecsTo( tCurr ) < FLUSHTIME ) && | ||
80 | ( _ptList[i].point() != QPoint( -1, -1 ) ) ) { | ||
81 | pt += _ptList[i].point(); | ||
82 | size++; | ||
83 | } | ||
84 | } | ||
85 | if ( size > 0 ) | ||
86 | emit signalNewPoint( pt /= size ); | ||
87 | } | ||
88 | |||
89 | void StylusNormalizer::start( void ) | ||
90 | { | ||
91 | _tExpire->start( FLUSHTIME ); | ||
92 | } | ||
93 | |||
94 | void StylusNormalizer::stop( void ) | ||
95 | { | ||
96 | _tExpire->stop(); | ||
97 | bFirst = true; | ||
98 | } \ No newline at end of file | ||