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# kcharselect.cpp

    00001 /* This file is part of the KDE libraries
    00002
    00003    Copyright (C) 1999 Reginald Stadlbauer <reggie@kde.org>
    00004
    00005    This library is free software; you can redistribute it and/or
    00006    modify it under the terms of the GNU Library General Public
    00007    License as published by the Free Software Foundation; either
    00008    version 2 of the License, or (at your option) any later version.
    00009
    00010    This library is distributed in the hope that it will be useful,
    00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00013    Library General Public License for more details.
    00014
    00015    You should have received a copy of the GNU Library General Public License
    00016    along with this library; see the file COPYING.LIB.  If not, write to
    00017    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00018    Boston, MA 02111-1307, USA.
    00019 */
    00020
    00021 #include "kcharselect.h"
    00022 #include "kcharselect.moc"
    00023
    00024 #include <qevent.h>
    00025 #include <qfont.h>
    00026 #include <qpen.h>
    00027 #include <qbrush.h>
    00028 #include <qpainter.h>
    00029 #include <qcolor.h>
    00030 #include <qlabel.h>
    00031 #include <qhbox.h>
    00032 #include <qkeycode.h>
    00033 #include <qfontdatabase.h>
    00034 #include <qstyle.h>
    00035
    00036 #include <klocale.h>
    00037 #include <kdebug.h>
    00038 #include <kdialog.h>
    00039 #include <kapplication.h>
    00040
    00041 QFontDatabase * KCharSelect::fontDataBase = 0;
    00042
    00043 void KCharSelect::cleanupFontDatabase()
    00044 {
    00045     delete fontDataBase;
    00046     fontDataBase = 0;
    00047 }
    00048
    00049 /******************************************************************/
    00050 /* Class: KCharSelectTable                                        */
    00051 /******************************************************************/
    00052
    00053 //==================================================================
    00054 KCharSelectTable::KCharSelectTable( QWidget *parent, const char *name, const QString &_font,
    00055                                     const QChar &_chr, int _tableNum )
    00056     : QGridView( parent, name ), vFont( _font ), vChr( _chr ),
    00057       vTableNum( _tableNum ), vPos( 0, 0 ), focusItem( _chr ), focusPos( 0, 0 )
    00058 {
    00059     setBackgroundColor( colorGroup().base() );
    00060
    00061     setCellWidth( 20 );
    00062     setCellHeight( 25 );
    00063
    00064     setNumCols( 32 );
    00065     setNumRows( 8 );
    00066
    00067     repaintContents( false );
    00068
    00069     setFocusPolicy( QWidget::StrongFocus );
    00070     setBackgroundMode( QWidget::NoBackground );
    00071 }
    00072
    00073 //==================================================================
    00074 void KCharSelectTable::setFont( const QString &_font )
    00075 {
    00076     vFont = _font;
    00077     repaintContents( false );
    00078 }
    00079
    00080 //==================================================================
    00081 void KCharSelectTable::setChar( const QChar &_chr )
    00082 {
    00083     vChr = _chr;
    00084     repaintContents( false );
    00085 }
    00086
    00087 //==================================================================
    00088 void KCharSelectTable::setTableNum( int _tableNum )
    00089 {
    00090     focusItem = QChar( _tableNum * 256 );
    00091
    00092     vTableNum = _tableNum;
    00093     repaintContents( false );
    00094 }
    00095
    00096 //==================================================================
    00097 QSize KCharSelectTable::sizeHint() const
    00098 {
    00099     int w = cellWidth();
    00100     int h = cellHeight();
    00101
    00102     w *= numCols();
    00103     h *= numRows();
    00104
    00105     return QSize( w, h );
    00106 }
    00107
    00108 //==================================================================
    00109 void KCharSelectTable::resizeEvent( QResizeEvent * e )
    00110 {
    00111     int new_w   = (e->size().width()  - 2*(margin()+frameWidth())) / numCols();
    00112     int new_h   = (e->size().height() - 2*(margin()+frameWidth())) / numRows();
    00113
    00114     if( new_w !=  cellWidth())
    00115         setCellWidth( new_w );
    00116     if( new_h !=  cellHeight())
    00117         setCellHeight( new_h );
    00118 }
    00119
    00120 //==================================================================
    00121 void KCharSelectTable::paintCell( class QPainter* p, int row, int col )
    00122 {
    00123     int w = cellWidth();
    00124     int h = cellHeight();
    00125     int x2 = w - 1;
    00126     int y2 = h - 1;
    00127
    00128     //if( row == 0 && col == 0 ) {
    00129     //    printf("Repaint %d\n", temp++);
    00130     //    fflush( stdout );
    00131     //    }
    00132
    00133     QFont font = QFont( vFont );
    00134     font.setPixelSize( int(.7 * h) );
    00135
    00136     unsigned short c = vTableNum * 256;
    00137     c += row * numCols();
    00138     c += col;
    00139
    00140     if ( c == vChr.unicode() ) {
    00141         p->setBrush( QBrush( colorGroup().highlight() ) );
    00142         p->setPen( NoPen );
    00143         p->drawRect( 0, 0, w, h );
    00144         p->setPen( colorGroup().highlightedText() );
    00145         vPos = QPoint( col, row );
    00146     } else {
    00147         QFontMetrics fm = QFontMetrics( font );
    00148         if( fm.inFont( c ) )
    00149                 p->setBrush( QBrush( colorGroup().base() ) );
    00150         else
    00151                 p->setBrush( QBrush( colorGroup().button() ) );
    00152         p->setPen( NoPen );
    00153         p->drawRect( 0, 0, w, h );
    00154         p->setPen( colorGroup().text() );
    00155     }
    00156
    00157     if ( c == focusItem.unicode() && hasFocus() ) {
    00158 #if QT_VERSION < 300
    00159         style().drawFocusRect( p, QRect( 2, 2, w - 4, h - 4 ), colorGroup() );
    00160 #else
    00161         style().drawPrimitive( QStyle::PE_FocusRect, p, QRect( 2, 2, w - 4, h - 4 ),
    00162                                colorGroup() );
    00163 #endif
    00164         focusPos = QPoint( col, row );
    00165     }
    00166
    00167     p->setFont( font );
    00168
    00169     p->drawText( 0, 0, x2, y2, AlignHCenter | AlignVCenter, QString( QChar( c ) ) );
    00170
    00171     p->setPen( colorGroup().text() );
    00172     p->drawLine( x2, 0, x2, y2 );
    00173     p->drawLine( 0, y2, x2, y2 );
    00174
    00175     if ( row == 0 )
    00176         p->drawLine( 0, 0, x2, 0 );
    00177     if ( col == 0 )
    00178         p->drawLine( 0, 0, 0, y2 );
    00179 }
    00180
    00181 //==================================================================
    00182 void KCharSelectTable::mouseMoveEvent( QMouseEvent *e )
    00183 {
    00184     int row = rowAt( e->y() );
    00185     int col = columnAt( e->x() );
    00186     if ( row >= 0 && row < numRows() && col >= 0 && col < numCols() ) {
    00187         QPoint oldPos = vPos;
    00188
    00189         vPos.setX( col );
    00190         vPos.setY( row );
    00191
    00192         vChr = QChar( vTableNum * 256 + numCols() * vPos.y() + vPos.x() );
    00193
    00194         QPoint oldFocus = focusPos;
    00195
    00196         focusPos = vPos;
    00197         focusItem = vChr;
    00198
    00199         repaintCell( oldFocus.y(), oldFocus.x(), true );
    00200         repaintCell( oldPos.y(), oldPos.x(), true );
    00201         repaintCell( vPos.y(), vPos.x(), true );
    00202
    00203         emit highlighted( vChr );
    00204         emit highlighted();
    00205
    00206         emit focusItemChanged( focusItem );
    00207         emit focusItemChanged();
    00208     }
    00209 }
    00210
    00211 //==================================================================
    00212 void KCharSelectTable::keyPressEvent( QKeyEvent *e )
    00213 {
    00214     switch ( e->key() ) {
    00215     case Key_Left:
    00216         gotoLeft();
    00217         break;
    00218     case Key_Right:
    00219         gotoRight();
    00220         break;
    00221     case Key_Up:
    00222         gotoUp();
    00223         break;
    00224     case Key_Down:
    00225         gotoDown();
    00226         break;
    00227     case Key_Next:
    00228         emit tableDown();
    00229         break;
    00230     case Key_Prior:
    00231         emit tableUp();
    00232         break;
    00233     case Key_Space:
    00234         emit activated( ' ' );
    00235         emit activated();
    00236         emit highlighted( ' ' );
    00237         emit highlighted();
    00238         break;
    00239     case Key_Enter: case Key_Return: {
    00240         QPoint oldPos = vPos;
    00241
    00242         vPos = focusPos;
    00243         vChr = focusItem;
    00244
    00245         repaintCell( oldPos.y(), oldPos.x(), true );
    00246         repaintCell( vPos.y(), vPos.x(), true );
    00247
    00248         emit activated( vChr );
    00249         emit activated();
    00250         emit highlighted( vChr );
    00251         emit highlighted();
    00252     } break;
    00253     }
    00254 }
    00255
    00256 //==================================================================
    00257 void KCharSelectTable::gotoLeft()
    00258 {
    00259     if ( focusPos.x() > 0 ) {
    00260         QPoint oldPos = focusPos;
    00261
    00262         focusPos.setX( focusPos.x() - 1 );
    00263
    00264         focusItem = QChar( vTableNum * 256 + numCols() * focusPos.y() + focusPos.x() );
    00265
    00266         repaintCell( oldPos.y(), oldPos.x(), true );
    00267         repaintCell( focusPos.y(), focusPos.x(), true );
    00268
    00269         emit focusItemChanged( vChr );
    00270         emit focusItemChanged();
    00271     }
    00272 }
    00273
    00274 //==================================================================
    00275 void KCharSelectTable::gotoRight()
    00276 {
    00277     if ( focusPos.x() < numCols()-1 ) {
    00278         QPoint oldPos = focusPos;
    00279
    00280         focusPos.setX( focusPos.x() + 1 );
    00281
    00282         focusItem = QChar( vTableNum * 256 + numCols() * focusPos.y() + focusPos.x() );
    00283
    00284         repaintCell( oldPos.y(), oldPos.x(), true );
    00285         repaintCell( focusPos.y(), focusPos.x(), true );
    00286
    00287         emit focusItemChanged( vChr );
    00288         emit focusItemChanged();
    00289     }
    00290 }
    00291
    00292 //==================================================================
    00293 void KCharSelectTable::gotoUp()
    00294 {
    00295     if ( focusPos.y() > 0 ) {
    00296         QPoint oldPos = focusPos;
    00297
    00298         focusPos.setY( focusPos.y() - 1 );
    00299
    00300         focusItem = QChar( vTableNum * 256 + numCols() * focusPos.y() + focusPos.x() );
    00301
    00302         repaintCell( oldPos.y(), oldPos.x(), true );
    00303         repaintCell( focusPos.y(), focusPos.x(), true );
    00304
    00305         emit focusItemChanged( vChr );
    00306         emit focusItemChanged();
    00307     }
    00308 }
    00309
    00310 //==================================================================
    00311 void KCharSelectTable::gotoDown()
    00312 {
    00313     if ( focusPos.y() < numRows()-1 ) {
    00314         QPoint oldPos = focusPos;
    00315
    00316         focusPos.setY( focusPos.y() + 1 );
    00317
    00318         focusItem = QChar( vTableNum * 256 + numCols() * focusPos.y() + focusPos.x() );
    00319
    00320         repaintCell( oldPos.y(), oldPos.x(), true );
    00321         repaintCell( focusPos.y(), focusPos.x(), true );
    00322
    00323         emit focusItemChanged( vChr );
    00324         emit focusItemChanged();
    00325     }
    00326 }
    00327
    00328 /******************************************************************/
    00329 /* Class: KCharSelect                                             */
    00330 /******************************************************************/
    00331
    00332 //==================================================================
    00333 KCharSelect::KCharSelect( QWidget *parent, const char *name, const QString &_font, const QChar &_chr, int _tableNum )
    00334     : QVBox( parent, name )
    00335 {
    00336     setSpacing( KDialog::spacingHint() );
    00337     QHBox *bar = new QHBox( this );
    00338     bar->setSpacing( KDialog::spacingHint() );
    00339
    00340     QLabel *lFont = new QLabel( i18n( "  Font:  " ), bar );
    00341     lFont->resize( lFont->sizeHint() );
    00342     lFont->setAlignment( Qt::AlignRight | Qt::AlignVCenter );
    00343     lFont->setMaximumWidth( lFont->sizeHint().width() );
    00344
    00345     fontCombo = new QComboBox( true, bar );
    00346     fillFontCombo();
    00347     fontCombo->resize( fontCombo->sizeHint() );
    00348
    00349     connect( fontCombo, SIGNAL( activated( const QString & ) ), this, SLOT( fontSelected( const QString & ) ) );
    00350
    00351     QLabel *lTable = new QLabel( i18n( "  Table:  " ), bar );
    00352     lTable->resize( lTable->sizeHint() );
    00353     lTable->setAlignment( Qt::AlignRight | Qt::AlignVCenter );
    00354     lTable->setMaximumWidth( lTable->sizeHint().width() );
    00355
    00356     tableSpinBox = new QSpinBox( 0, 255, 1, bar );
    00357     tableSpinBox->resize( tableSpinBox->sizeHint() );
    00358
    00359     connect( tableSpinBox, SIGNAL( valueChanged( int ) ), this, SLOT( tableChanged( int ) ) );
    00360
    00361     charTable = new KCharSelectTable( this, name, _font.isEmpty() ? QVBox::font().family() : _font, _chr, _tableNum );
    00362     QSize sz( charTable->contentsWidth()  +  4 ,
    00363               charTable->contentsHeight() +  4 );
    00364     charTable->resize( sz );
    00365     //charTable->setMaximumSize( sz );
    00366     charTable->setMinimumSize( sz );
    00367     charTable->setHScrollBarMode( QScrollView::AlwaysOff );
    00368     charTable->setVScrollBarMode( QScrollView::AlwaysOff );
    00369
    00370     setFont( _font.isEmpty() ? QVBox::font().family() : _font );
    00371     setTableNum( _tableNum );
    00372
    00373     connect( charTable, SIGNAL( highlighted( const QChar & ) ), this, SLOT( charHighlighted( const QChar & ) ) );
    00374     connect( charTable, SIGNAL( highlighted() ), this, SLOT( charHighlighted() ) );
    00375     connect( charTable, SIGNAL( activated( const QChar & ) ), this, SLOT( charActivated( const QChar & ) ) );
    00376     connect( charTable, SIGNAL( activated() ), this, SLOT( charActivated() ) );
    00377     connect( charTable, SIGNAL( focusItemChanged( const QChar & ) ),
    00378              this, SLOT( charFocusItemChanged( const QChar & ) ) );
    00379     connect( charTable, SIGNAL( focusItemChanged() ), this, SLOT( charFocusItemChanged() ) );
    00380     connect( charTable, SIGNAL( tableUp() ), this, SLOT( charTableUp() ) );
    00381     connect( charTable, SIGNAL( tableDown() ), this, SLOT( charTableDown() ) );
    00382
    00383     connect( charTable, SIGNAL(doubleClicked()),this,SLOT(slotDoubleClicked()));
    00384
    00385     setFocusPolicy( QWidget::StrongFocus );
    00386     setFocusProxy( charTable );
    00387 }
    00388
    00389 //==================================================================
    00390 QSize KCharSelect::sizeHint() const
    00391 {
    00392     return QVBox::sizeHint();
    00393 }
    00394
    00395 //==================================================================
    00396 void KCharSelect::setFont( const QString &_font )
    00397 {
    00398     QValueList<QString>::Iterator it = fontList.find( _font );
    00399     if ( it != fontList.end() ) {
    00400         QValueList<QString>::Iterator it2 = fontList.begin();
    00401         int pos = 0;
    00402         for ( ; it != it2; ++it2, ++pos);
    00403         fontCombo->setCurrentItem( pos );
    00404         charTable->setFont( _font );
    00405     }
    00406     else
    00407         kdWarning() << "Can't find Font: " << _font << endl;
    00408 }
    00409
    00410 //==================================================================
    00411 void KCharSelect::setChar( const QChar &_chr )
    00412 {
    00413     charTable->setChar( _chr );
    00414 }
    00415
    00416 //==================================================================
    00417 void KCharSelect::setTableNum( int _tableNum )
    00418 {
    00419     tableSpinBox->setValue( _tableNum );
    00420     charTable->setTableNum( _tableNum );
    00421 }
    00422
    00423 //==================================================================
    00424 void KCharSelect::fillFontCombo()
    00425 {
    00426     if ( !fontDataBase ) {
    00427         fontDataBase = new QFontDatabase();
    00428         qAddPostRoutine( cleanupFontDatabase );
    00429     }
    00430     fontList=fontDataBase->families();
    00431     fontCombo->insertStringList( fontList );
    00432 }
    00433
    00434 //==================================================================
    00435 void KCharSelect::fontSelected( const QString &_font )
    00436 {
    00437     charTable->setFont( _font );
    00438     emit fontChanged( _font );
    00439 }
    00440
    00441 //==================================================================
    00442 void KCharSelect::tableChanged( int _value )
    00443 {
    00444     charTable->setTableNum( _value );
    00445 }
    00446
    00447 void KCharSelectTable::virtual_hook( int, void*)
    00448 { /*BASE::virtual_hook( id, data );*/ }
    00449
    00450 void KCharSelect::virtual_hook( int, void* )
    00451 { /*BASE::virtual_hook( id, data );*/ }
    00452

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
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