Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 463 insertions, 0 deletions

diff --git a/ksysguard/gui/Workspace.cc b/ksysguard/gui/Workspace.cc
new file mode 100644
index 000000000..c179317c0
--- /dev/null
+++ b/ksysguard/gui/Workspace.cc
@@ -0,0 +1,463 @@
+/*
+    KSysGuard, the KDE System Guard
+
+    Copyright (c) 1999 - 2002 Chris Schlaeger <cs@kde.org>
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of version 2 of the GNU General Public
+    License as published by the Free Software Foundation.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+    KSysGuard is currently maintained by Chris Schlaeger <cs@kde.org>.
+    Please do not commit any changes without consulting me first. Thanks!
+
+*/
+
+#include <qlineedit.h>
+#include <qspinbox.h>
+#include <qwhatsthis.h>
+
+#include <kdebug.h>
+#include <kfiledialog.h>
+#include <kio/netaccess.h>
+#include <klocale.h>
+#include <kmessagebox.h>
+#include <kstandarddirs.h>
+#include <kaccelmanager.h>
+
+#include "WorkSheet.h"
+#include "WorkSheetSettings.h"
+#include "ProcessController.h"
+
+#include "Workspace.h"
+
+Workspace::Workspace( QWidget* parent, const char* name )
+  : QTabWidget( parent, name )
+{
+  KAcceleratorManager::setNoAccel(this);
+ 
+  mSheetList.setAutoDelete( true );
+  mAutoSave = true;
+
+  connect( this, SIGNAL( currentChanged( QWidget* ) ),
+           SLOT( updateCaption( QWidget* ) ) );
+
+  QWhatsThis::add( this, i18n( "This is your work space. It holds your worksheets. You need "
+                               "to create a new worksheet (Menu File->New) before "
+                               "you can drag sensors here." ) );
+}
+
+Workspace::~Workspace()
+{
+  /* This workaround is necessary to prevent a crash when the last
+   * page is not the current page. It seems like the the signal/slot
+   * administration data is already deleted but slots are still
+   * being triggered. TODO: I need to ask the Trolls about this. */
+
+  disconnect( this, SIGNAL( currentChanged( QWidget* ) ), this,
+              SLOT( updateCaption( QWidget* ) ) );
+}
+
+void Workspace::saveProperties( KConfig *cfg )
+{
+  cfg->writePathEntry( "WorkDir", mWorkDir );
+  cfg->writeEntry( "CurrentSheet", tabLabel( currentPage() ) );
+
+  QPtrListIterator<WorkSheet> it( mSheetList);
+
+  QStringList list;
+  for ( int i = 0; it.current(); ++it, ++i )
+    if ( !(*it)->fileName().isEmpty() )
+      list.append( (*it)->fileName() );
+
+  cfg->writePathEntry( "Sheets", list );
+}
+
+void Workspace::readProperties( KConfig *cfg )
+{
+  QString currentSheet;
+
+  mWorkDir = cfg->readPathEntry( "WorkDir" );
+
+  if ( mWorkDir.isEmpty() ) {
+    /* If workDir is not specified in the config file, it's
+     * probably the first time the user has started KSysGuard. We
+     * then "restore" a special default configuration. */
+    KStandardDirs* kstd = KGlobal::dirs();
+    kstd->addResourceType( "data", "share/apps/ksysguard" );
+
+    mWorkDir = kstd->saveLocation( "data", "ksysguard" );
+
+    QString origFile = kstd->findResource( "data", "SystemLoad.sgrd" );
+    QString newFile = mWorkDir + "/" + i18n( "System Load" ) + ".sgrd";
+    if ( !origFile.isEmpty() )
+      restoreWorkSheet( origFile, newFile );
+
+    origFile = kstd->findResource( "data", "ProcessTable.sgrd" );
+    newFile = mWorkDir + "/" + i18n( "Process Table" ) + ".sgrd";
+    if ( !origFile.isEmpty() )
+      restoreWorkSheet( origFile, newFile );
+
+    currentSheet = i18n( "System Load" );
+  } else {
+    currentSheet = cfg->readEntry( "CurrentSheet" );
+    QStringList list = cfg->readPathListEntry( "Sheets" );
+    for ( QStringList::Iterator it = list.begin(); it != list.end(); ++it )
+      restoreWorkSheet( *it );
+  }
+
+  // Determine visible sheet.
+  QPtrListIterator<WorkSheet> it( mSheetList );
+  for ( ; it.current(); ++it )
+    if ( currentSheet == tabLabel(*it) ) {
+      showPage( *it );
+      break;
+    }
+}
+
+void Workspace::newWorkSheet()
+{
+  /* Find a name of the form "Sheet %d" that is not yet used by any
+   * of the existing worksheets. */
+  QString sheetName;
+  bool found;
+
+  int i = 1;
+  do {
+    sheetName = i18n( "Sheet %1" ).arg( i++ );
+    QPtrListIterator<WorkSheet> it( mSheetList );
+    found = false;
+    for ( ; it.current() && !found; ++it )
+      if ( tabLabel(*it) == sheetName )
+        found = true;
+  } while ( found );
+
+  WorkSheetSettings dlg( this );
+  dlg.setSheetTitle( sheetName );
+  if ( dlg.exec() ) {
+    WorkSheet* sheet = new WorkSheet( dlg.rows(), dlg.columns(), dlg.interval(), this );
+    sheet->setTitle( dlg.sheetTitle() );
+    insertTab( sheet, dlg.sheetTitle() );
+    mSheetList.append( sheet );
+    showPage( sheet );
+    connect( sheet, SIGNAL( sheetModified( QWidget* ) ),
+             SLOT( updateCaption( QWidget* ) ) );
+    connect( sheet, SIGNAL( titleChanged( QWidget* ) ),
+             SLOT( updateSheetTitle( QWidget* ) ) );
+  }
+}
+
+bool Workspace::saveOnQuit()
+{
+  QPtrListIterator<WorkSheet> it( mSheetList );
+  for ( ; it.current(); ++it )
+    if ( (*it)->modified() ) {
+      if ( !mAutoSave || (*it)->fileName().isEmpty() ) {
+        int res = KMessageBox::warningYesNoCancel( this,
+                  i18n( "The worksheet '%1' contains unsaved data.\n"
+                        "Do you want to save the worksheet?")
+                  .arg( tabLabel( *it ) ), QString::null, KStdGuiItem::save(), KStdGuiItem::discard() );
+        if ( res == KMessageBox::Yes )
+          saveWorkSheet( *it );
+        else if ( res == KMessageBox::Cancel )
+          return false; // abort quit
+      } else
+        saveWorkSheet(*it);
+    }
+
+  return true;
+}
+
+void Workspace::loadWorkSheet()
+{
+  KFileDialog dlg( 0, i18n( "*.sgrd|Sensor Files" ), this,
+                   "LoadFileDialog", true );
+
+  KURL url = dlg.getOpenURL( mWorkDir, "*.sgrd", 0, i18n( "Select Worksheet to Load" ) );
+
+  loadWorkSheet( url );
+}
+
+void Workspace::loadWorkSheet( const KURL &url )
+{
+  if ( url.isEmpty() )
+    return;
+
+  /* It's probably not worth the effort to make this really network
+   * transparent. Unless s/o beats me up I use this pseudo transparent
+   * code. */
+  QString tmpFile;
+  KIO::NetAccess::download( url, tmpFile, this );
+  mWorkDir = tmpFile.left( tmpFile.findRev( '/' ) );
+
+  // Load sheet from file.
+  if ( !restoreWorkSheet( tmpFile ) )
+    return;
+
+  /* If we have loaded a non-local file we clear the file name so that
+   * the users is prompted for a new name for saving the file. */
+  KURL tmpFileUrl;
+  tmpFileUrl.setPath( tmpFile );
+  if ( tmpFileUrl != url.url() )
+    mSheetList.last()->setFileName( QString::null );
+  KIO::NetAccess::removeTempFile( tmpFile );
+
+  emit announceRecentURL( KURL( url ) );
+}
+
+void Workspace::saveWorkSheet()
+{
+  saveWorkSheet( (WorkSheet*)currentPage() );
+}
+
+void Workspace::saveWorkSheetAs()
+{
+  saveWorkSheetAs( (WorkSheet*)currentPage() );
+}
+
+void Workspace::saveWorkSheet( WorkSheet *sheet )
+{
+  if ( !sheet ) {
+    KMessageBox::sorry( this, i18n( "You do not have a worksheet that could be saved." ) );
+    return;
+  }
+
+  QString fileName = sheet->fileName();
+  if ( fileName.isEmpty() ) {
+    KFileDialog dlg( 0, i18n( "*.sgrd|Sensor Files" ), this,
+                     "LoadFileDialog", true );
+    fileName = dlg.getSaveFileName( mWorkDir + "/" + tabLabel( sheet ) +
+                                    ".sgrd", "*.sgrd", 0,
+                                    i18n( "Save Current Worksheet As" ) );
+    if ( fileName.isEmpty() )
+      return;
+
+    mWorkDir = fileName.left( fileName.findRev( '/' ) );
+
+    // extract filename without path
+    QString baseName = fileName.right( fileName.length() - fileName.findRev( '/' ) - 1 );
+
+    // chop off extension (usually '.sgrd')
+    baseName = baseName.left( baseName.findRev( '.' ) );
+    changeTab( sheet, baseName );
+  }
+
+  /* If we cannot save the file is probably write protected. So we need
+   * to ask the user for a new name. */
+  if ( !sheet->save( fileName ) ) {
+    saveWorkSheetAs( sheet );
+    return;
+  }
+
+  /* Add file to recent documents menue. */
+  KURL url;
+  url.setPath( fileName );
+  emit announceRecentURL( url );
+}
+
+void Workspace::saveWorkSheetAs( WorkSheet *sheet )
+{
+  if ( !sheet ) {
+    KMessageBox::sorry( this, i18n( "You do not have a worksheet that could be saved." ) );
+    return;
+  }
+
+  QString fileName;
+  do {
+    KFileDialog dlg( 0, "*.sgrd", this, "LoadFileDialog", true );
+    fileName = dlg.getSaveFileName( mWorkDir + "/" + tabLabel( currentPage() ) +
+                                    ".sgrd", "*.sgrd" );
+    if ( fileName.isEmpty() )
+      return;
+
+    mWorkDir = fileName.left( fileName.findRev( '/' ) );
+
+    // extract filename without path
+    QString baseName = fileName.right( fileName.length() - fileName.findRev( '/' ) - 1 );
+
+    // chop off extension (usually '.sgrd')
+    baseName = baseName.left( baseName.findRev( '.' ) );
+    changeTab( sheet, baseName );
+  } while ( !sheet->save( fileName ) );
+
+  /* Add file to recent documents menue. */
+  KURL url;
+  url.setPath( fileName );
+  emit announceRecentURL( url );
+}
+
+void Workspace::deleteWorkSheet()
+{
+  WorkSheet *current = (WorkSheet*)currentPage();
+
+  if ( current ) {
+    if ( current->modified() ) {
+      if ( !mAutoSave || current->fileName().isEmpty() ) {
+        int res = KMessageBox::warningYesNoCancel( this,
+                            i18n( "The worksheet '%1' contains unsaved data.\n"
+                                  "Do you want to save the worksheet?" )
+                            .arg( tabLabel( current ) ), QString::null, KStdGuiItem::save(), KStdGuiItem::discard() );
+        if ( res == KMessageBox::Cancel )
+          return;
+
+        if ( res == KMessageBox::Yes )
+          saveWorkSheet( current );
+      } else
+        saveWorkSheet( current );
+    }
+
+    removePage( current );
+    mSheetList.remove( current );
+  } else {
+    QString msg = i18n( "There are no worksheets that could be deleted." );
+    KMessageBox::error( this, msg );
+  }
+}
+
+void Workspace::removeAllWorkSheets()
+{
+  WorkSheet *sheet;
+  while ( ( sheet = (WorkSheet*)currentPage() ) != 0 ) {
+    removePage( sheet );
+    mSheetList.remove( sheet );
+  }
+}
+
+void Workspace::deleteWorkSheet( const QString &fileName )
+{
+  QPtrListIterator<WorkSheet> it( mSheetList );
+  for ( ; it.current(); ++it )
+    if ( (*it)->fileName() == fileName ) {
+      removePage( *it );
+      mSheetList.remove( *it );
+      return;
+    }
+}
+
+WorkSheet *Workspace::restoreWorkSheet( const QString &fileName, const QString &newName )
+{
+  /* We might want to save the worksheet under a different name later. This
+   * name can be specified by newName. If newName is empty we use the
+   * original name to save the work sheet. */
+  QString tmpStr;
+  if ( newName.isEmpty() )
+    tmpStr = fileName;
+  else
+    tmpStr = newName;
+
+  // extract filename without path
+  QString baseName = tmpStr.right( tmpStr.length() - tmpStr.findRev( '/' ) - 1 );
+
+  // chop off extension (usually '.sgrd')
+  baseName = baseName.left( baseName.findRev( '.' ) );
+
+  WorkSheet *sheet = new WorkSheet( this );
+  sheet->setTitle( baseName );
+  insertTab( sheet, baseName );
+  showPage( sheet );
+
+  if ( !sheet->load( fileName ) ) {
+    delete sheet;
+    return NULL;
+  }
+  
+  mSheetList.append( sheet );
+  connect( sheet, SIGNAL( sheetModified( QWidget* ) ),
+           SLOT( updateCaption( QWidget* ) ) );
+
+  /* Force the file name to be the new name. This also sets the modified
+   * flag, so that the file will get saved on exit. */
+  if ( !newName.isEmpty() )
+    sheet->setFileName( newName );
+
+  return sheet;
+}
+
+void Workspace::cut()
+{
+  WorkSheet *current = (WorkSheet*)currentPage();
+
+  if ( current )
+    current->cut();
+}
+
+void Workspace::copy()
+{
+  WorkSheet *current = (WorkSheet*)currentPage();
+
+  if ( current )
+    current->copy();
+}
+
+void Workspace::paste()
+{
+  WorkSheet *current = (WorkSheet*)currentPage();
+
+  if ( current )
+    current->paste();
+}
+
+void Workspace::configure()
+{
+  WorkSheet *current = (WorkSheet*)currentPage();
+
+  if ( !current )
+    return;
+
+  current->settings();
+}
+
+void Workspace::updateCaption( QWidget* wdg )
+{
+  if ( wdg )
+    emit setCaption( tabLabel( wdg ), ((WorkSheet*)wdg)->modified() );
+  else
+    emit setCaption( QString::null, false );
+
+  for ( WorkSheet* s = mSheetList.first(); s != 0; s = mSheetList.next() )
+    ((WorkSheet*)s)->setIsOnTop( s == wdg );
+}
+
+void Workspace::updateSheetTitle( QWidget* wdg )
+{
+  if ( wdg )
+    changeTab( wdg, static_cast<WorkSheet*>( wdg )->title() );
+}
+
+void Workspace::applyStyle()
+{
+  if ( currentPage() )
+    ((WorkSheet*)currentPage())->applyStyle();
+}
+
+void Workspace::showProcesses()
+{
+  KStandardDirs* kstd = KGlobal::dirs();
+  kstd->addResourceType( "data", "share/apps/ksysguard" );
+
+  QString file = kstd->findResource( "data", "ProcessTable.sgrd" );
+  if ( file.isEmpty() ) {
+    KMessageBox::error( this, i18n( "Cannot find file ProcessTable.sgrd." ) );
+    return;
+  }
+  WorkSheet *processSheet = restoreWorkSheet( file );
+  if(!processSheet) return;
+
+  //Set the focus of the search line.  This is nasty I know, but I don't know how better to do this :(
+  KSGRD::SensorDisplay *processSensor = processSheet->display( 0,0 );
+  if(!processSensor || !processSensor->isA("ProcessController")) return;
+  ProcessController *controller = dynamic_cast<ProcessController *>(processSensor);
+  if(!controller) return;
+  controller->setSearchFocus();
+
+}
+
+#include "Workspace.moc"