diff options
Diffstat (limited to 'kdeui/kcommand.cpp')
| -rw-r--r-- | kdeui/kcommand.cpp | 379 |
1 files changed, 0 insertions, 379 deletions
diff --git a/kdeui/kcommand.cpp b/kdeui/kcommand.cpp deleted file mode 100644 index 2c76b21cd..000000000 --- a/kdeui/kcommand.cpp +++ /dev/null @@ -1,379 +0,0 @@ -/* This file is part of the KDE project - Copyright (C) 2000 Werner Trobin <trobin@kde.org> - Copyright (C) 2000 David Faure <faure@kde.org> - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public - License as published by the Free Software Foundation; either - version 2 of the License, or (at your option) any later version. - - This library 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public License - along with this library; see the file COPYING.LIB. If not, write to - the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. -*/ - -#include "kcommand.h" -#include <kaction.h> -#include <kstdaccel.h> -#include <kstdaction.h> -#include <kdebug.h> -#include <klocale.h> -#include <kpopupmenu.h> - -KCommand::~KCommand() -{ -} - -KMacroCommand::KMacroCommand( const TQString & name ) : KNamedCommand(name) -{ - m_commands.setAutoDelete(true); -} - -void KMacroCommand::addCommand(KCommand *command) -{ - m_commands.append(command); -} - -void KMacroCommand::execute() -{ - TQPtrListIterator<KCommand> it(m_commands); - for ( ; it.current() ; ++it ) - it.current()->execute(); -} - -void KMacroCommand::unexecute() -{ - TQPtrListIterator<KCommand> it(m_commands); - it.toLast(); - for ( ; it.current() ; --it ) - it.current()->unexecute(); -} - - -class KCommandHistory::KCommandHistoryPrivate { -public: - KCommandHistoryPrivate() { - m_savedAt=-1; - m_present=0; - } - ~KCommandHistoryPrivate() {} - int m_savedAt; - KCommand *m_present; -}; - -//////////// - -KCommandHistory::KCommandHistory() : - m_undo(0), m_redo(0), m_undoLimit(50), m_redoLimit(30), m_first(false) -{ - d=new KCommandHistoryPrivate(); - m_commands.setAutoDelete(true); - clear(); -} - -KCommandHistory::KCommandHistory(KActionCollection * actionCollection, bool withMenus) : - m_undoLimit(50), m_redoLimit(30), m_first(false) -{ - d=new KCommandHistoryPrivate(); - if (withMenus) - { - KToolBarPopupAction * undo = new KToolBarPopupAction( i18n("&Undo"), "undo", - KStdAccel::shortcut(KStdAccel::Undo), this, TQT_SLOT( undo() ), - actionCollection, KStdAction::stdName( KStdAction::Undo ) ); - connect( undo->popupMenu(), TQT_SIGNAL( aboutToShow() ), this, TQT_SLOT( slotUndoAboutToShow() ) ); - connect( undo->popupMenu(), TQT_SIGNAL( activated( int ) ), this, TQT_SLOT( slotUndoActivated( int ) ) ); - m_undo = undo; - m_undoPopup = undo->popupMenu(); - - KToolBarPopupAction * redo = new KToolBarPopupAction( i18n("&Redo"), "redo", - KStdAccel::shortcut(KStdAccel::Redo), this, TQT_SLOT( redo() ), - actionCollection, KStdAction::stdName( KStdAction::Redo ) ); - connect( redo->popupMenu(), TQT_SIGNAL( aboutToShow() ), this, TQT_SLOT( slotRedoAboutToShow() ) ); - connect( redo->popupMenu(), TQT_SIGNAL( activated( int ) ), this, TQT_SLOT( slotRedoActivated( int ) ) ); - m_redo = redo; - m_redoPopup = redo->popupMenu(); - } - else - { - m_undo = KStdAction::undo( this, TQT_SLOT( undo() ), actionCollection ); - m_redo = KStdAction::redo( this, TQT_SLOT( redo() ), actionCollection ); - m_undoPopup = 0L; - m_redoPopup = 0L; - } - m_commands.setAutoDelete(true); - clear(); -} - -KCommandHistory::~KCommandHistory() { - delete d; -} - -void KCommandHistory::clear() { - if (m_undo) { - m_undo->setEnabled(false); - m_undo->setText(i18n("&Undo")); - } - if (m_redo) { - m_redo->setEnabled(false); - m_redo->setText(i18n("&Redo")); - } - d->m_present = 0L; - d->m_savedAt=-42; -} - -void KCommandHistory::addCommand(KCommand *command, bool execute) { - - if(!command) - return; - - int index; - if(d->m_present && (index=m_commands.findRef(d->m_present))!=-1) { - if (m_first) - --index; - m_commands.insert(index+1, command); - // truncate history - unsigned int count=m_commands.count(); - for(unsigned int i=index+2; i<count; ++i) - m_commands.removeLast(); - // check whether we still can reach savedAt - if(index<d->m_savedAt) - d->m_savedAt=-1; - d->m_present=command; - m_first=false; - if (m_undo) { - m_undo->setEnabled(true); - m_undo->setText(i18n("&Undo: %1").arg(d->m_present->name())); - } - if((m_redo) && m_redo->isEnabled()) { - m_redo->setEnabled(false); - m_redo->setText(i18n("&Redo")); - } - clipCommands(); - } - else { // either this is the first time we add a Command or something has gone wrong - kdDebug(230) << "Initializing the Command History" << endl; - m_commands.clear(); - m_commands.append(command); - d->m_present=command; - if (m_undo) { - m_undo->setEnabled(true); - m_undo->setText(i18n("&Undo: %1").arg(d->m_present->name())); - } - if (m_redo) { - m_redo->setEnabled(false); - m_redo->setText(i18n("&Redo")); - } - m_first=false; // Michael B: yes, that *is* correct :-) - } - if ( execute ) - { - command->execute(); - emit commandExecuted(); - emit commandExecuted(command); - } -} - -void KCommandHistory::undo() { - - if (m_first || !d->m_present) - return; - - d->m_present->unexecute(); - emit commandExecuted(); - emit commandExecuted(d->m_present); - if (m_redo) { - m_redo->setEnabled(true); - m_redo->setText(i18n("&Redo: %1").arg(d->m_present->name())); - } - int index; - if((index=m_commands.findRef(d->m_present))!=-1 && m_commands.prev()) { - d->m_present=m_commands.current(); - if (m_undo) { - m_undo->setEnabled(true); - m_undo->setText(i18n("&Undo: %1").arg(d->m_present->name())); - } - --index; - if(index==d->m_savedAt) - emit documentRestored(); - } - else { - if (m_undo) { - m_undo->setEnabled(false); - m_undo->setText(i18n("&Undo")); - } - if(d->m_savedAt==-42) - emit documentRestored(); - m_first=true; - } - clipCommands(); // only needed here and in addCommand, NOT in redo -} - -void KCommandHistory::redo() { - - int index; - if(m_first) { - d->m_present->execute(); - emit commandExecuted(); - emit commandExecuted(d->m_present); - m_first=false; - m_commands.first(); - if(!d->m_savedAt) - emit documentRestored(); - } - else if((index=m_commands.findRef(d->m_present))!=-1 && m_commands.next()) { - d->m_present=m_commands.current(); - d->m_present->execute(); - emit commandExecuted(); - emit commandExecuted(d->m_present); - ++index; - if(index==d->m_savedAt) - emit documentRestored(); - } - - if (m_undo) { - m_undo->setEnabled(true); - m_undo->setText(i18n("&Undo: %1").arg(d->m_present->name())); - } - - if(m_commands.next()) { - if (m_redo) { - m_redo->setEnabled(true); - m_redo->setText(i18n("&Redo: %1").arg(m_commands.current()->name())); - } - } - else { - if((m_redo) && m_redo->isEnabled()) { - m_redo->setEnabled(false); - m_redo->setText(i18n("&Redo")); - } - } -} - -void KCommandHistory::documentSaved() { - if(d->m_present && !m_first) - d->m_savedAt=m_commands.findRef(d->m_present); - else if(!d->m_present && !m_first) - d->m_savedAt=-42; // this value signals that the document has - // been saved with an empty history. - else if(m_first) - d->m_savedAt=-42; -} - -void KCommandHistory::setUndoLimit(int limit) { - - if(limit>0 && limit!=m_undoLimit) { - m_undoLimit=limit; - clipCommands(); - } -} - -void KCommandHistory::setRedoLimit(int limit) { - - if(limit>0 && limit!=m_redoLimit) { - m_redoLimit=limit; - clipCommands(); - } -} - -void KCommandHistory::clipCommands() { - - int count=m_commands.count(); - if(count<=m_undoLimit && count<=m_redoLimit) - return; - - int index=m_commands.findRef(d->m_present); - if(index>=m_undoLimit) { - for(int i=0; i<=(index-m_undoLimit); ++i) { - m_commands.removeFirst(); - --d->m_savedAt; - if(d->m_savedAt==-1) - d->m_savedAt=-42; - } - index=m_commands.findRef(d->m_present); // calculate the new - count=m_commands.count(); // values (for the redo-branch :) - // make it easier for us... d->m_savedAt==-1 -> invalid - if(d->m_savedAt!=-42 && d->m_savedAt<-1) - d->m_savedAt=-1; - } - // adjust the index if it's the first command - if(m_first) - index=-1; - if((index+m_redoLimit+1)<count) { - if(d->m_savedAt>(index+m_redoLimit)) - d->m_savedAt=-1; - for(int i=0; i<(count-(index+m_redoLimit+1)); ++i) - m_commands.removeLast(); - } -} - -void KCommandHistory::slotUndoAboutToShow() -{ - m_undoPopup->clear(); - int i = 0; - if (m_commands.findRef(d->m_present)!=-1) - while ( m_commands.current() && i<10 ) // TODO make number of items configurable ? - { - m_undoPopup->insertItem( i18n("Undo: %1").arg(m_commands.current()->name()), i++ ); - m_commands.prev(); - } -} - -void KCommandHistory::slotUndoActivated( int pos ) -{ - kdDebug(230) << "KCommandHistory::slotUndoActivated " << pos << endl; - for ( int i = 0 ; i < pos+1; ++i ) - undo(); -} - -void KCommandHistory::slotRedoAboutToShow() -{ - m_redoPopup->clear(); - int i = 0; - if (m_first) - { - d->m_present = m_commands.first(); - m_redoPopup->insertItem( i18n("Redo: %1").arg(d->m_present->name()), i++ ); - } - if (m_commands.findRef(d->m_present)!=-1 && m_commands.next()) - while ( m_commands.current() && i<10 ) // TODO make number of items configurable ? - { - m_redoPopup->insertItem( i18n("Redo: %1").arg(m_commands.current()->name()), i++ ); - m_commands.next(); - } -} - -void KCommandHistory::slotRedoActivated( int pos ) -{ - kdDebug(230) << "KCommandHistory::slotRedoActivated " << pos << endl; - for ( int i = 0 ; i < pos+1; ++i ) - redo(); -} - -void KCommandHistory::updateActions() -{ - if ( m_undo && m_redo ) - { - m_undo->setEnabled( !m_first && ( d->m_present ) ); - m_redo->setEnabled(m_first || (m_commands.findRef(d->m_present)!=-1 && m_commands.next())); - } -} - -void KCommand::virtual_hook( int, void* ) -{ /*BASE::virtual_hook( id, data );*/ } - -void KNamedCommand::virtual_hook( int id, void* data ) -{ KCommand::virtual_hook( id, data ); } - -void KMacroCommand::virtual_hook( int id, void* data ) -{ KNamedCommand::virtual_hook( id, data ); } - -void KCommandHistory::virtual_hook( int, void* ) -{ /*BASE::virtual_hook( id, data );*/ } - -#include "kcommand.moc" |