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
|
/*
Copyright (C) 2000 Stefan Westerfeld
stefan@space.twc.de
2001, 2002 Matthias Kretz
kretz@kde.org
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 "kfader_impl.h"
#include "kfader_impl.moc"
#include "anyref.h"
#include "stdio.h"
#include <math.h>
using namespace Arts;
using namespace std;
FaderIntMapper::FaderIntMapper(KFader_impl *impl, KFader *kp) :impl(impl)
{
connect(kp, TQ_SIGNAL(valueChanged(int)), this, TQ_SLOT(valueChanged(int)));
}
void FaderIntMapper::valueChanged(int pos)
{
impl->valueChanged(pos);
}
KFader_impl::KFader_impl( KFader * widget )
: KWidget_impl( widget ? widget : new KFader( 0, 100, 1, 0 ) )
{
_min = 0; _max = 1; _value = 0;
_factor = 1;
_logarithmic = 0;
_range = 100;
_kfader = static_cast<KFader*>( _qwidget );
_kfader->setMinimumWidth( 40 );
_kfader->setMinimumHeight( 100 );
new FaderIntMapper( this, _kfader );
}
string KFader_impl::caption()
{
return _caption.utf8().data();
}
void KFader_impl::caption(const string& newText)
{
_caption = TQString::fromUtf8(newText.c_str());
_kfader->setName(_caption.utf8().data());
}
string KFader_impl::color()
{
return _color;
}
void KFader_impl::color(const string& newColor)
{
_color = newColor;
if(strlen(_color.c_str()))
{
TQColor qc(_color.c_str());
_kfader->setColor(qc);
}
}
float KFader_impl::min()
{
return _min;
}
void KFader_impl::min(float newMin)
{
if(_min != newMin)
{
_min = newMin;
applyValue();
}
}
float KFader_impl::max()
{
return _max;
}
void KFader_impl::max(float newMax)
{
if(_max != newMax)
{
_max = newMax;
applyValue();
}
}
float KFader_impl::value()
{
//float ret = ( _max + _min - float(_kfader->value()) ) / _factor;
//if(_logarithmic > 0)
//ret = convertFromLog(ret);
float ret = _value;
if(ret < _min)
ret = _min;
else if(ret > _max)
ret = _max;
return ret;
}
void KFader_impl::value(float newValue)
{
if(newValue != _value)
{
_value = newValue;
applyValue();
if(visible())
value_changed(value());
}
}
long KFader_impl::range()
{
return _range;
}
void KFader_impl::range(long newRange)
{
if(_range != newRange)
{
_range = newRange;
applyValue();
}
}
void KFader_impl::valueChanged(int newvalue)
{
_value = float(newvalue) / _factor;
if(_logarithmic > 0)
_value = convertFromLog(_value);
_value = _max + _min - _value;
if(visible())
value_changed(value());
}
float KFader_impl::convertToLog(float val)
{
return log(val) / log(_logarithmic);
}
float KFader_impl::convertFromLog(float val)
{
return pow(_logarithmic, val);
}
void KFader_impl::applyValue()
{
double dmin = _min;
double dmax = _max;
double dvalue = _value;
if(_logarithmic > 0)
{
dmin = convertToLog(_min);
dmax = convertToLog(_max);
dvalue = convertToLog(_value);
}
_factor = _range / (dmax - dmin);
int imin = int(_factor * dmin);
int imax = int(_factor * dmax);
int ivalue = int(_factor * (dmax + dmin - dvalue));
_kfader->setRange(imin, imax);
_kfader->setValue(ivalue);
}
void KFader_impl::logarithmic(float newLogarithmic)
{
if(_logarithmic != newLogarithmic)
{
_logarithmic = newLogarithmic;
applyValue();
}
}
float KFader_impl::logarithmic()
{
return _logarithmic;
}
REGISTER_IMPLEMENTATION(KFader_impl);
|
