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 <kglobalsettings.h> 00021 #include <qdragobject.h> 00022 #include <kconfig.h> 00023 #include <kglobal.h> 00024 00025 #include "config.h" 00026 #if defined Q_WS_X11 && ! defined K_WS_QTONLY 00027 #include <kipc.h> // schroder 00028 #endif 00029 00030 #include <kapplication.h> 00031 00032 #include "kpushbutton.h" 00033 00034 class KPushButton::KPushButtonPrivate 00035 { 00036 public: 00037 KGuiItem item; 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 00087 // call QPushButton's implementation since we don't need to 00088 // set the GUI items text or check the state of the icon set 00089 QPushButton::setText( d->item.text() ); 00090 00091 static bool initialized = false; 00092 if ( !initialized ) { 00093 readSettings(); 00094 initialized = true; 00095 } 00096 00097 setIconSet( d->item.iconSet() ); 00098 00099 setSizePolicy( QSizePolicy( QSizePolicy::Minimum, QSizePolicy::Minimum ) ); 00100 00101 if (kapp) 00102 { 00103 connect( kapp, SIGNAL( settingsChanged(int) ), 00104 SLOT( slotSettingsChanged(int) ) ); 00105 #if defined Q_WS_X11 && ! defined K_WS_QTONLY 00106 kapp->addKipcEventMask( KIPC::SettingsChanged ); 00107 #endif 00108 } 00109 } 00110 00111 void KPushButton::readSettings() 00112 { 00113 s_useIcons = KGlobalSettings::showIconsOnPushButtons(); 00114 } 00115 00116 void KPushButton::setGuiItem( const KGuiItem& item ) 00117 { 00118 d->item = item; 00119 00120 // call QPushButton's implementation since we don't need to 00121 // set the GUI items text or check the state of the icon set 00122 QPushButton::setText( d->item.text() ); 00123 setIconSet( d->item.iconSet() ); 00124 } 00125 00126 void KPushButton::setText( const QString &text ) 00127 { 00128 QPushButton::setText(text); 00129 00130 // we need to re-evaluate the icon set when the text 00131 // is removed, or when it is supplied 00132 if (text.isEmpty() != d->item.text().isEmpty()) 00133 setIconSet(d->item.iconSet()); 00134 00135 d->item.setText(text); 00136 } 00137 00138 void KPushButton::setIconSet( const QIconSet &iconSet ) 00139 { 00140 d->item.setIconSet(iconSet); 00141 00142 if ( s_useIcons || text().isEmpty() ) 00143 QPushButton::setIconSet( iconSet ); 00144 else 00145 QPushButton::setIconSet( QIconSet() ); 00146 } 00147 00148 void KPushButton::slotSettingsChanged( int /* category */ ) 00149 { 00150 readSettings(); 00151 setIconSet( d->item.iconSet() ); 00152 } 00153 00154 void KPushButton::setDragEnabled( bool enable ) 00155 { 00156 m_dragEnabled = enable; 00157 } 00158 00159 void KPushButton::mousePressEvent( QMouseEvent *e ) 00160 { 00161 if ( m_dragEnabled ) 00162 startPos = e->pos(); 00163 QPushButton::mousePressEvent( e ); 00164 } 00165 00166 void KPushButton::mouseMoveEvent( QMouseEvent *e ) 00167 { 00168 if ( !m_dragEnabled ) 00169 { 00170 QPushButton::mouseMoveEvent( e ); 00171 return; 00172 } 00173 00174 if ( (e->state() & LeftButton) && 00175 (e->pos() - startPos).manhattanLength() > 00176 KGlobalSettings::dndEventDelay() ) 00177 { 00178 startDrag(); 00179 setDown( false ); 00180 } 00181 } 00182 00183 QDragObject * KPushButton::dragObject() 00184 { 00185 return 0L; 00186 } 00187 00188 void KPushButton::startDrag() 00189 { 00190 QDragObject *d = dragObject(); 00191 if ( d ) 00192 d->dragCopy(); 00193 } 00194 00195 void KPushButton::virtual_hook( int, void* ) 00196 { /*BASE::virtual_hook( id, data );*/ } 00197 00198 #include "kpushbutton.moc"
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This file is part of the documentation for kdeui Library Version 3.2.3.
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