kdeui Library API Documentation

kpushbutton.cpp

00001 /* This file is part of the KDE libraries 00002 Copyright (C) 2000 Carsten Pfeiffer <pfeiffer@kde.org> 00003 00004 This library is free software; you can redistribute it and/or 00005 modify it under the terms of the GNU Library General Public 00006 License as published by the Free Software Foundation; either 00007 version 2 of the License, or (at your option) any later version. 00008 00009 This library is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 Library General Public License for more details. 00013 00014 You should have received a copy of the GNU Library General Public License 00015 along with this library; see the file COPYING.LIB. If not, write to 00016 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 00017 Boston, MA 02111-1307, USA. 00018 */ 00019 00020 #include "kpushbutton.h" 00021 00022 #include <qdragobject.h> 00023 #include <qwhatsthis.h> 00024 00025 #include "config.h" 00026 00027 #include <kglobalsettings.h> 00028 #include <kconfig.h> 00029 #include <kglobal.h> 00030 #include <kipc.h> 00031 #include <kapplication.h> 00032 00033 class KPushButton::KPushButtonPrivate 00034 { 00035 public: 00036 KGuiItem item; 00037 KStdGuiItem::StdItem itemType; 00038 }; 00039 00040 bool KPushButton::s_useIcons = false; 00041 00042 KPushButton::KPushButton( QWidget *parent, const char *name ) 00043 : QPushButton( parent, name ), 00044 m_dragEnabled( false ) 00045 { 00046 init( KGuiItem( "" ) ); 00047 } 00048 00049 KPushButton::KPushButton( const QString &text, QWidget *parent, 00050 const char *name) 00051 : QPushButton( parent, name ), 00052 m_dragEnabled( false ) 00053 { 00054 init( KGuiItem( text ) ); 00055 } 00056 00057 KPushButton::KPushButton( const QIconSet &icon, const QString &text, 00058 QWidget *parent, const char *name ) 00059 : QPushButton( text, parent, name ), 00060 m_dragEnabled( false ) 00061 { 00062 init( KGuiItem( text, icon ) ); 00063 } 00064 00065 KPushButton::KPushButton( const KGuiItem &item, QWidget *parent, 00066 const char *name ) 00067 : QPushButton( parent, name ), 00068 m_dragEnabled( false ) 00069 { 00070 init( item ); 00071 } 00072 00073 KPushButton::~KPushButton() 00074 { 00075 if( d ) 00076 { 00077 delete d; 00078 d = 0L; 00079 } 00080 } 00081 00082 void KPushButton::init( const KGuiItem &item ) 00083 { 00084 d = new KPushButtonPrivate; 00085 d->item = item; 00086 d->itemType = (KStdGuiItem::StdItem) 0; 00087 00088 // call QPushButton's implementation since we don't need to 00089 // set the GUI items text or check the state of the icon set 00090 QPushButton::setText( d->item.text() ); 00091 00092 static bool initialized = false; 00093 if ( !initialized ) { 00094 readSettings(); 00095 initialized = true; 00096 } 00097 00098 setIconSet( d->item.iconSet() ); 00099 00100 setSizePolicy( QSizePolicy( QSizePolicy::Minimum, QSizePolicy::Minimum ) ); 00101 00102 QWhatsThis::add( this, item.whatsThis() ); 00103 00104 if (kapp) 00105 { 00106 connect( kapp, SIGNAL( settingsChanged(int) ), 00107 SLOT( slotSettingsChanged(int) ) ); 00108 kapp->addKipcEventMask( KIPC::SettingsChanged ); 00109 } 00110 } 00111 00112 void KPushButton::readSettings() 00113 { 00114 s_useIcons = KGlobalSettings::showIconsOnPushButtons(); 00115 } 00116 00117 void KPushButton::setGuiItem( const KGuiItem& item ) 00118 { 00119 d->item = item; 00120 00121 // call QPushButton's implementation since we don't need to 00122 // set the GUI items text or check the state of the icon set 00123 QPushButton::setText( d->item.text() ); 00124 setIconSet( d->item.iconSet() ); 00125 } 00126 00127 void KPushButton::setGuiItem( KStdGuiItem::StdItem item ) 00128 { 00129 setGuiItem( KStdGuiItem::guiItem(item) ); 00130 d->itemType = item; 00131 } 00132 00133 KStdGuiItem::StdItem KPushButton::guiItem() const 00134 { 00135 return d->itemType; 00136 } 00137 00138 void KPushButton::setText( const QString &text ) 00139 { 00140 QPushButton::setText(text); 00141 00142 // we need to re-evaluate the icon set when the text 00143 // is removed, or when it is supplied 00144 if (text.isEmpty() != d->item.text().isEmpty()) 00145 setIconSet(d->item.iconSet()); 00146 00147 d->item.setText(text); 00148 } 00149 00150 void KPushButton::setIconSet( const QIconSet &iconSet ) 00151 { 00152 d->item.setIconSet(iconSet); 00153 00154 if ( s_useIcons || text().isEmpty() ) 00155 QPushButton::setIconSet( iconSet ); 00156 else 00157 QPushButton::setIconSet( QIconSet() ); 00158 } 00159 00160 void KPushButton::slotSettingsChanged( int /* category */ ) 00161 { 00162 readSettings(); 00163 setIconSet( d->item.iconSet() ); 00164 } 00165 00166 void KPushButton::setDragEnabled( bool enable ) 00167 { 00168 m_dragEnabled = enable; 00169 } 00170 00171 void KPushButton::mousePressEvent( QMouseEvent *e ) 00172 { 00173 if ( m_dragEnabled ) 00174 startPos = e->pos(); 00175 QPushButton::mousePressEvent( e ); 00176 } 00177 00178 void KPushButton::mouseMoveEvent( QMouseEvent *e ) 00179 { 00180 if ( !m_dragEnabled ) 00181 { 00182 QPushButton::mouseMoveEvent( e ); 00183 return; 00184 } 00185 00186 if ( (e->state() & LeftButton) && 00187 (e->pos() - startPos).manhattanLength() > 00188 KGlobalSettings::dndEventDelay() ) 00189 { 00190 startDrag(); 00191 setDown( false ); 00192 } 00193 } 00194 00195 QDragObject * KPushButton::dragObject() 00196 { 00197 return 0L; 00198 } 00199 00200 void KPushButton::startDrag() 00201 { 00202 QDragObject *d = dragObject(); 00203 if ( d ) 00204 d->dragCopy(); 00205 } 00206 00207 void KPushButton::virtual_hook( int, void* ) 00208 { /*BASE::virtual_hook( id, data );*/ } 00209 00210 #include "kpushbutton.moc"
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This file is part of the documentation for kdeui Library Version 3.4.0.
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