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-rw-r--r--arts/gui/kde/ktickmarks_impl.cpp179
1 files changed, 179 insertions, 0 deletions
diff --git a/arts/gui/kde/ktickmarks_impl.cpp b/arts/gui/kde/ktickmarks_impl.cpp
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+++ b/arts/gui/kde/ktickmarks_impl.cpp
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+/*
+ 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, 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
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