kdeui

kpanelmenu.cpp

00001 /*****************************************************************
00002 
00003 Copyright (c) 1996-2000 the kicker authors. See file AUTHORS.
00004           (c) Michael Goffioul <kdeprint@swing.be>
00005 
00006 Permission is hereby granted, free of charge, to any person obtaining a copy
00007 of this software and associated documentation files (the "Software"), to deal
00008 in the Software without restriction, including without limitation the rights
00009 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00010 copies of the Software, and to permit persons to whom the Software is
00011 furnished to do so, subject to the following conditions:
00012 
00013 The above copyright notice and this permission notice shall be included in
00014 all copies or substantial portions of the Software.
00015 
00016 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00017 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00018 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
00019 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
00020 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
00021 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00022 
00023 ******************************************************************/
00024 
00025 #include <kglobal.h>
00026 #include <kconfig.h>
00027 #include <qtimer.h>
00028 
00029 #include "kpanelmenu.h"
00030 #include "kpanelmenu.moc"
00031 //#include "kaccelmanager.h"
00032 
00033 
00034 class KPanelMenuPrivate
00035 {
00036 public:
00037     bool init;
00038     int clearDelay;
00039     QString startPath;
00040     QTimer t;
00041 };
00042 
00043 KPanelMenu::KPanelMenu(const QString &startDir, QWidget *parent, const char *name)
00044   : KPopupMenu(parent, name)
00045 {
00046     init(startDir);
00047 }
00048 
00049 KPanelMenu::KPanelMenu(QWidget *parent, const char *name)
00050   : KPopupMenu(parent, name)
00051 {
00052     init();
00053 }
00054 
00055 void KPanelMenu::init(const QString& path)
00056 {
00057     d = new KPanelMenuPrivate;
00058 
00059     setInitialized( false );
00060     d->startPath = path;
00061 
00062     connect(this, SIGNAL(activated(int)), SLOT(slotExec(int)));
00063     connect(this, SIGNAL(aboutToShow()), SLOT(slotAboutToShow()));
00064 
00065     // setup cache timer
00066     KConfig *config = KGlobal::config();
00067     config->setGroup("menus");
00068     d->clearDelay = config->readNumEntry("MenuCacheTime", 60000); // 1 minute
00069 
00070     //KAcceleratorManager::manage(this);
00071     setKeyboardShortcutsEnabled(true);
00072 }
00073 
00074 KPanelMenu::~KPanelMenu()
00075 {
00076     delete d;
00077 }
00078 
00079 void KPanelMenu::slotAboutToShow()
00080 {
00081     // stop the cache timer
00082     if(d->clearDelay)
00083         d->t.stop();
00084 
00085     // teared off ?
00086     if ( isTopLevel() )
00087         d->clearDelay = 0;
00088 
00089     internalInitialize();
00090 }
00091 
00092 void KPanelMenu::slotClear()
00093 {
00094     setInitialized( false );
00095     clear();
00096 }
00097 
00098 void KPanelMenu::hideEvent(QHideEvent *ev)
00099 {
00100     // start the cache timer
00101     if(d->clearDelay) {
00102         disconnect(&(d->t), SIGNAL(timeout()), this, SLOT(slotClear()));
00103         connect(&(d->t), SIGNAL(timeout()), this, SLOT(slotClear()));
00104         d->t.start(d->clearDelay, true);
00105     }
00106     QPopupMenu::hideEvent(ev);
00107 }
00108 
00109 void KPanelMenu::disableAutoClear()
00110 {
00111     d->clearDelay = 0;
00112 }
00113 
00114 const QString& KPanelMenu::path() const
00115 {
00116     return d->startPath;
00117 }
00118 
00119 void KPanelMenu::setPath(const QString& p)
00120 {
00121     d->startPath = p;
00122 }
00123 
00124 bool KPanelMenu::initialized() const
00125 {
00126     return d->init;
00127 }
00128 
00129 void KPanelMenu::setInitialized(bool on)
00130 {
00131     d->init = on;
00132 }
00133 
00134 void KPanelMenu::reinitialize()
00135 {
00136     deinitialize();
00137     // Yes, reinitialize must call initialize(). Otherwise, menus
00138     // may not appear in the right place. Don't change this! If
00139     // you want delayed initialization, use deinitialize() instead.
00140     internalInitialize();
00141 }
00142 
00143 void KPanelMenu::deinitialize()
00144 {
00145     slotClear();
00146 }
00147 
00148 void KPanelMenu::internalInitialize()
00149 {
00150     if( initialized() )
00151         return;
00152     initialize();
00153     setInitialized( true );
00154 }
00155 
00156 void KPanelMenu::virtual_hook( int id, void* data )
00157 { KPopupMenu::virtual_hook( id, data ); }
00158
kdeui

kpanelmenu.cpp

kdeui

API Reference
