kcolorbutton.cpp Source File (kdeui Library)

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# kcolorbutton.cpp

    00001 /*  This file is part of the KDE libraries
    00002     Copyright (C) 1997 Martin Jones (mjones@kde.org)
    00003     Copyright (C) 1999 Cristian Tibirna (ctibirna@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 <config.h>
    00022
    00023 #include <qpainter.h>
    00024 #include <qdrawutil.h>
    00025 #include <qapplication.h>
    00026 #include <qstyle.h>
    00027 #include <kglobalsettings.h>
    00028 #include "kcolordialog.h"
    00029 #include "kcolorbutton.h"
    00030 #include "kcolordrag.h"
    00031
    00032 class KColorButton::KColorButtonPrivate
    00033 {
    00034 public:
    00035     bool m_bdefaultColor;
    00036     QColor m_defaultColor;
    00037 };
    00038
    00039 KColorButton::KColorButton( QWidget *parent, const char *name )
    00040   : QPushButton( parent, name )
    00041 {
    00042     d = new KColorButtonPrivate;
    00043     d->m_bdefaultColor = false;
    00044     d->m_defaultColor = QColor();
    00045   setAcceptDrops( true);
    00046
    00047   // 2000-10-15 (putzer): fixes broken keyboard usage
    00048   connect (this, SIGNAL(clicked()), this, SLOT(chooseColor()));
    00049 }
    00050
    00051 KColorButton::KColorButton( const QColor &c, QWidget *parent,
    00052                             const char *name )
    00053   : QPushButton( parent, name ), col(c)
    00054 {
    00055     d = new KColorButtonPrivate;
    00056     d->m_bdefaultColor = false;
    00057     d->m_defaultColor = QColor();
    00058     setAcceptDrops( true);
    00059
    00060   // 2000-10-15 (putzer): fixes broken keyboard usage
    00061   connect (this, SIGNAL(clicked()), this, SLOT(chooseColor()));
    00062 }
    00063
    00064 KColorButton::KColorButton( const QColor &c, const QColor &defaultColor, QWidget *parent,
    00065                             const char *name )
    00066   : QPushButton( parent, name ), col(c)
    00067 {
    00068     d = new KColorButtonPrivate;
    00069     d->m_bdefaultColor = true;
    00070     d->m_defaultColor = defaultColor;
    00071     setAcceptDrops( true);
    00072
    00073   // 2000-10-15 (putzer): fixes broken keyboard usage
    00074   connect (this, SIGNAL(clicked()), this, SLOT(chooseColor()));
    00075 }
    00076
    00077 KColorButton::~KColorButton()
    00078 {
    00079     delete d;
    00080 }
    00081
    00082 void KColorButton::setColor( const QColor &c )
    00083 {
    00084   if ( col != c ) {
    00085     col = c;
    00086     repaint( false );
    00087     emit changed( col );
    00088   }
    00089 }
    00090
    00091 void KColorButton::drawButtonLabel( QPainter *painter )
    00092 {
    00093   QRect r = style().subRect( QStyle::SR_PushButtonContents, this );
    00094   int l = r.x();
    00095   int t = r.y();
    00096   int w = r.width();
    00097   int h = r.height();
    00098   int b = 5;
    00099
    00100   QColor fillCol = isEnabled() ? col : backgroundColor();
    00101
    00102   if ( isDown() ) {
    00103     qDrawShadePanel( painter, l+b+1, t+b+1, w-b*2, h-b*2, colorGroup(), 1, 1, 0 );
    00104     b++;
    00105     if ( fillCol.isValid() )
    00106       painter->fillRect( l+b+1, t+b+1, w-b*2, h-b*2, fillCol );
    00107   } else {
    00108     qDrawShadePanel( painter, l+b, t+b, w-b*2, h-b*2, colorGroup(), 1, 1, 0 );
    00109     b++;
    00110     if ( fillCol.isValid() )
    00111       painter->fillRect( l+b, t+b, w-b*2, h-b*2, fillCol );
    00112   }
    00113 }
    00114
    00115 void KColorButton::dragEnterEvent( QDragEnterEvent *event)
    00116 {
    00117   event->accept( KColorDrag::canDecode( event) && isEnabled());
    00118 }
    00119
    00120 void KColorButton::dropEvent( QDropEvent *event)
    00121 {
    00122   QColor c;
    00123   if( KColorDrag::decode( event, c)) {
    00124     setColor(c);
    00125   }
    00126 }
    00127
    00128 void KColorButton::mousePressEvent( QMouseEvent *e)
    00129 {
    00130   mPos = e->pos();
    00131   QPushButton::mousePressEvent(e);
    00132 }
    00133
    00134 void KColorButton::mouseMoveEvent( QMouseEvent *e)
    00135 {
    00136   if( (e->state() & LeftButton) &&
    00137     (e->pos()-mPos).manhattanLength() > KGlobalSettings::dndEventDelay() )
    00138   {
    00139     // Drag color object
    00140     KColorDrag *dg = KColorDrag::makeDrag( color(), this);
    00141     dg->dragCopy();
    00142     setDown(false);
    00143   }
    00144 }
    00145
    00146 void KColorButton::chooseColor()
    00147 {
    00148   QColor c = color();
    00149   if ( d->m_bdefaultColor )
    00150   {
    00151       if( KColorDialog::getColor( c, d->m_defaultColor, this ) != QDialog::Rejected ) {
    00152           setColor( c );
    00153       }
    00154   }
    00155   else
    00156   {
    00157       if( KColorDialog::getColor( c, this ) != QDialog::Rejected ) {
    00158           setColor( c );
    00159       }
    00160   }
    00161 }
    00162
    00163 void KColorButton::virtual_hook( int, void* )
    00164 { /*BASE::virtual_hook( id, data );*/ }
    00165
    00166 #include "kcolorbutton.moc"

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