Diffstat (limited to 'noncore/games/qasteroids/ledmeter.cpp') (more/less context) (show whitespace changes)
-rw-r--r-- | noncore/games/qasteroids/ledmeter.cpp | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/noncore/games/qasteroids/ledmeter.cpp b/noncore/games/qasteroids/ledmeter.cpp new file mode 100644 index 0000000..f4d4d1a --- a/dev/null +++ b/noncore/games/qasteroids/ledmeter.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 | * KAsteroids - Copyright (c) Martin R. Jones 1997 | ||
21 | * | ||
22 | * Part of the KDE project | ||
23 | */ | ||
24 | |||
25 | #include <qpainter.h> | ||
26 | #include "ledmeter.h" | ||
27 | |||
28 | KALedMeter::KALedMeter( QWidget *parent ) : QFrame( parent ) | ||
29 | { | ||
30 | mCRanges.setAutoDelete( TRUE ); | ||
31 | mRange = 100; | ||
32 | mCount = 20; | ||
33 | mCurrentCount = 0; | ||
34 | mValue = 0; | ||
35 | setMinimumWidth( mCount * 2 + frameWidth() ); | ||
36 | } | ||
37 | |||
38 | void KALedMeter::setRange( int r ) | ||
39 | { | ||
40 | mRange = r; | ||
41 | if ( mRange < 1 ) | ||
42 | mRange = 1; | ||
43 | setValue( mValue ); | ||
44 | update(); | ||
45 | } | ||
46 | |||
47 | void KALedMeter::setCount( int c ) | ||
48 | { | ||
49 | mCount = c; | ||
50 | if ( mCount < 1 ) | ||
51 | mCount = 1; | ||
52 | setMinimumWidth( mCount * 2 + frameWidth() ); | ||
53 | calcColorRanges(); | ||
54 | setValue( mValue ); | ||
55 | update(); | ||
56 | } | ||
57 | |||
58 | void KALedMeter::setValue( int v ) | ||
59 | { | ||
60 | mValue = v; | ||
61 | if ( mValue > mRange ) | ||
62 | mValue = mRange; | ||
63 | else if ( mValue < 0 ) | ||
64 | mValue = 0; | ||
65 | int c = ( mValue + mRange / mCount - 1 ) * mCount / mRange; | ||
66 | if ( c != mCurrentCount ) | ||
67 | { | ||
68 | mCurrentCount = c; | ||
69 | update(); | ||
70 | } | ||
71 | } | ||
72 | |||
73 | void KALedMeter::addColorRange( int pc, const QColor &c ) | ||
74 | { | ||
75 | ColorRange *cr = new ColorRange; | ||
76 | cr->mPc = pc; | ||
77 | cr->mColor = c; | ||
78 | mCRanges.append( cr ); | ||
79 | calcColorRanges(); | ||
80 | } | ||
81 | |||
82 | void KALedMeter::resizeEvent( QResizeEvent *e ) | ||
83 | { | ||
84 | QFrame::resizeEvent( e ); | ||
85 | int w = ( width() - frameWidth() - 2 ) / mCount * mCount; | ||
86 | w += frameWidth() + 2; | ||
87 | setFrameRect( QRect( 0, 0, w, height() ) ); | ||
88 | } | ||
89 | |||
90 | void KALedMeter::drawContents( QPainter *p ) | ||
91 | { | ||
92 | QRect b = contentsRect(); | ||
93 | |||
94 | unsigned cidx = 0; | ||
95 | int ncol = mCount; | ||
96 | QColor col = colorGroup().foreground(); | ||
97 | |||
98 | if ( !mCRanges.isEmpty() ) | ||
99 | { | ||
100 | col = mCRanges.at( cidx )->mColor; | ||
101 | ncol = mCRanges.at( cidx )->mValue; | ||
102 | } | ||
103 | p->setBrush( col ); | ||
104 | p->setPen( col ); | ||
105 | |||
106 | int lw = b.width() / mCount; | ||
107 | int lx = b.left() + 1; | ||
108 | for ( int i = 0; i < mCurrentCount; i++, lx += lw ) | ||
109 | { | ||
110 | if ( i > ncol ) | ||
111 | { | ||
112 | if ( ++cidx < mCRanges.count() ) | ||
113 | { | ||
114 | col = mCRanges.at( cidx )->mColor; | ||
115 | ncol = mCRanges.at( cidx )->mValue; | ||
116 | p->setBrush( col ); | ||
117 | p->setPen( col ); | ||
118 | } | ||
119 | } | ||
120 | |||
121 | p->drawRect( lx, b.top() + 1, lw - 1, b.height() - 2 ); | ||
122 | } | ||
123 | } | ||
124 | |||
125 | void KALedMeter::calcColorRanges() | ||
126 | { | ||
127 | int prev = 0; | ||
128 | ColorRange *cr; | ||
129 | for ( cr = mCRanges.first(); cr; cr = mCRanges.next() ) | ||
130 | { | ||
131 | cr->mValue = prev + cr->mPc * mCount / 100; | ||
132 | prev = cr->mValue; | ||
133 | } | ||
134 | } | ||
135 | |||