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
|
/*
Copyright ( C ) 2003 Arnold Krille <arnold@arnoldarts.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;
version 2 of the License.
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 "ktickmarks_impl.h"
#include <kdebug.h>
#include <qpainter.h>
#include <qfont.h>
#include <qfontmetrics.h>
KTickmarks_impl::KTickmarks_impl( QFrame* w ) : Arts::KFrame_impl( w ? w : new KTickmarks_Widget( 0 ) )
{
//kdDebug()<<"KTickmarks_impl::KTickmarks_impl( QFrame* w="<<w<<" )"<<endl;
_tmwidget = static_cast<KTickmarks_Widget*>( _qwidget );
}
float KTickmarks_impl::min() { return _tmwidget->dbmin; }
void KTickmarks_impl::min( float n ) { _tmwidget->dbmin = n; }
float KTickmarks_impl::max() { return _tmwidget->dbmax; }
void KTickmarks_impl::max( float n ) { _tmwidget->dbmax = n; }
float KTickmarks_impl::minstep() { return _tmwidget->minstep; }
void KTickmarks_impl::minstep( float n ) { _tmwidget->minstep = n; }
float KTickmarks_impl::substep() { return _tmwidget->substep; }
void KTickmarks_impl::substep( float n ) { _tmwidget->substep = n; }
Arts::Direction KTickmarks_impl::direction() { return _tmwidget->_dir; }
void KTickmarks_impl::direction( Arts::Direction n ) { _tmwidget->_dir = n; }
long KTickmarks_impl::position() { return _tmwidget->_pos; }
void KTickmarks_impl::position( long n ) { _tmwidget->_pos = n; }
void KTickmarks_impl::constructor( float min, float max, Arts::Direction dir, long pos ) {
this->min( min ); this->max( max ); direction( dir ); position( pos );
}
KTickmarks_Widget::KTickmarks_Widget( KTickmarks_impl* impl, QWidget* p, const char* n ) : QFrame( p,n ), dB2VolCalc( -24, 0 ), _impl( impl ), _pos( Arts::posLeft ), _dir( Arts::BottomToTop ), minstep( 1 ), substep( 0.5 ) {
setMinimumSize( 20,20 );
}
void KTickmarks_Widget::drawContents( QPainter* p ) {
//kdDebug()<<"KTickmarks::drawContents( QPainter* "<<p<<" )"<<endl;
bool left=false, right=false;
if ( _pos&Arts::posLeft ) left=true;
if ( _pos&Arts::posRight ) right=true;
// Setting the font
QFont font;
font.setPixelSize( 8 /*font.pixelSize()/2*/ ); // Maybe this could be adjusted...
p->setFont( font );
// Determining the size of the largest text (currently the text at the minimum-scale)
QFontMetrics fontmetric( font );
QRect fontrect = fontmetric.boundingRect( QString::number( dbmin ) );
// Calculating stepsizes
float _minstepcount = ( dbmax-dbmin )/minstep;
float _minstep = minstep; // this value gets changed
float _substepcount = ( dbmax-dbmin )/substep;
float _substep = substep; // this value gets changed
// Calculating minimum size of the widget
int _minsize;
// Shorcuts
int w,h;
QColor colornormal = colorGroup().foreground();
QColor colordiff = colorGroup().buttonText();
if ( _dir == Arts::BottomToTop || _dir == Arts::TopToBottom ) {
p->translate( contentsRect().left(), contentsRect().bottom() );
// Calculating stepsizes
for ( int i=1; _minstepcount*( fontrect.height()+4 ) > contentsRect().height(); i++ ) {
_minstepcount = ( dbmax-dbmin ) / minstep / i;
_minstep = minstep*i;
}
while ( _substepcount*2 > contentsRect().height() ) { _substepcount/=2; _substep*=2; }
// Calculating minimum size of the widget
_minsize=fontrect.width()+4;
if ( left ) _minsize+=6;
if ( right ) _minsize+=6;
setMinimumWidth( _minsize + frameWidth() + 2 );
// setMaximumWidth( _minsize /*+6*/ );
w = contentsRect().width(); // Just a shortcut
h=0;
// Painting substep marks
p->setPen( QPen( colordiff, 1 ) );
for ( float i=dbmax; i>=dbmin; i-=_substep ) {
h = int( -contentsRect().height() * dbtondb( i ) );
if ( _dir==Arts::TopToBottom ) h = 1 - h;
if ( left ) p->drawLine( 0, h, 3, h );
if ( right ) p->drawLine( w-3, h, w, h );
}
// Painting step marks and texts
p->setPen( QPen( colornormal, 1 ) );
for ( float i=0; i>=dbmin; i-=_minstep ) {
h = int( -contentsRect().height() * dbtondb( i ) );
if ( _dir==Arts::TopToBottom ) h = 1 - h;
if ( left ) p->drawLine( 0, h, 6, h );
p->drawText( ( w - (left)*6 - (right)*6 - fontrect.width() )/2 + (left)*6
, h-fontrect.height()/2,
fontrect.width(), fontrect.height()+2,
Qt::AlignRight|Qt::AlignTop, QString::number( i ) );
if ( right ) p->drawLine( w-6, h, w, h );
}
for ( float i=_minstep; i<=dbmax; i+=_minstep ) {
h = int( -contentsRect().height() * dbtondb( i ) );
if ( _dir==Arts::TopToBottom ) h = 1 - h;
if ( left ) p->drawLine( 0, h, 6, h );
p->drawText( ( w - (left)*6 - (right)*6 - fontrect.width() )/2 + (left)*6
, h-fontrect.height()/2,
fontrect.width(), fontrect.height()+2,
Qt::AlignRight|Qt::AlignTop, QString::number( i ) );
if ( right ) p->drawLine( w-6, h, w, h );
}
} else {
//if ( _dir == Arts::LeftToRight || _dir == Arts::RightToLeft ) {
// Calculating stepsizes
for ( int i=1; _minstepcount*( fontrect.width()+4 ) > contentsRect().width(); i++ ) {
_minstepcount = ( dbmax-dbmin ) / minstep / i;
_minstep = minstep*i;
}
while ( _substepcount*2 > contentsRect().width() ) { _substepcount/=2; _substep*=2; }
// Calculating minimum size of the widget
_minsize=fontrect.height()+4;
if ( left ) _minsize+=6;
if ( right ) _minsize+=6;
setMinimumHeight( _minsize + frameWidth() + 2 );
// setMaximumHeight( _minsize /*+6*/ );
w = 0; // Just a shortcut
h = frameWidth() + contentsRect().height();
// Painting substep marks
p->setPen( QPen( colordiff, 1 ) );
for ( float i=dbmax; i>=dbmin; i-=_substep ) {
w = this->frameWidth()+ int( contentsRect().width() * dbtondb( i ) );
if ( _dir==Arts::RightToLeft ) w = 1 - w;
if ( left ) p->drawLine( w, frameWidth(), w, frameWidth() + 3 );
if ( right ) p->drawLine( w, h-3, w, h );
}
// Painting step marks and texts
p->setPen( QPen( colornormal, 1 ) );
for ( float i=0; i>=dbmin; i-=_minstep ) {
w = int( contentsRect().width() * dbtondb( i ) );
if ( _dir==Arts::RightToLeft ) w = 1 - w;
if ( left ) p->drawLine( w, 0, w, 6 );
p->drawText( w - fontrect.width()/2
, ( h - (left)*6 - (right)*6 - fontrect.height() )/2 + (left)*6,
fontrect.width(), fontrect.height()+2,
Qt::AlignRight|Qt::AlignTop, QString::number( i ) );
if ( right ) p->drawLine( w, h-6, w, h );
}
for ( float i=_minstep; i<=dbmax; i+=_minstep ) {
h = int( -contentsRect().height() * dbtondb( i ) );
if ( _dir==Arts::RightToLeft ) w = 1 - w;
if ( left ) p->drawLine( w, 0, w, 6 );
p->drawText( w - fontrect.width()/2
, ( h - (left)*6 - (right)*6 - fontrect.height() )/2 + (left)*6,
fontrect.width(), fontrect.height()+2,
Qt::AlignRight|Qt::AlignTop, QString::number( i ) );
if ( right ) p->drawLine( w, h-6, w, h );
}
}
}
REGISTER_IMPLEMENTATION( KTickmarks_impl );
#include "ktickmarks_impl.moc"
// vim: sw=4 ts=4
|
