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tdegraphics/kolourpaint/kpcommandhistory.cpp

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/*
Copyright (c) 2003,2004,2005 Clarence Dang <dang@kde.org>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define DEBUG_KP_COMMAND_HISTORY 0
#include <kpcommandhistory.h>
#include <limits.h>
#include <tqdatetime.h>
#include <tdeactionclasses.h>
#include <tdeapplication.h>
#include <tdeconfig.h>
#include <kdebug.h>
#include <tdelocale.h>
#include <tdepopupmenu.h>
#include <tdestdaccel.h>
#include <kstdaction.h>
#include <kpdefs.h>
#include <kpdocument.h>
#include <kpmainwindow.h>
#include <kptool.h>
//template <typename T>
static void clearPointerList (TQValueList <kpCommand *> *listPtr)
{
if (!listPtr)
return;
for (TQValueList <kpCommand *>::iterator it = listPtr->begin ();
it != listPtr->end ();
it++)
{
delete (*it);
}
listPtr->clear ();
}
//
// kpCommand
//
kpCommand::kpCommand (kpMainWindow *mainWindow)
: m_mainWindow (mainWindow)
{
if (!mainWindow)
kdError () << "kpCommand::kpCommand() passed 0 mainWindow" << endl;
}
kpCommand::~kpCommand ()
{
}
// protected
kpMainWindow *kpCommand::mainWindow () const
{
return m_mainWindow;
}
// protected
kpDocument *kpCommand::document () const
{
return m_mainWindow ? m_mainWindow->document () : 0;
}
// protected
kpSelection *kpCommand::selection () const
{
kpDocument *doc = document ();
if (!doc)
return 0;
return doc->selection ();
}
// protected
kpViewManager *kpCommand::viewManager () const
{
return m_mainWindow ? m_mainWindow->viewManager () : 0;
}
//
// kpNamedCommand
//
kpNamedCommand::kpNamedCommand (const TQString &name, kpMainWindow *mainWindow)
: kpCommand (mainWindow),
m_name (name)
{
}
kpNamedCommand::~kpNamedCommand ()
{
}
// public virtual [base kpCommand]
TQString kpNamedCommand::name () const
{
return m_name;
}
//
// kpMacroCommand
//
struct kpMacroCommandPrivate
{
};
kpMacroCommand::kpMacroCommand (const TQString &name, kpMainWindow *mainWindow)
: kpNamedCommand (name, mainWindow),
d (new kpMacroCommandPrivate ())
{
}
kpMacroCommand::~kpMacroCommand ()
{
clearPointerList (&m_commandList);
delete d;
}
// public virtual [base kpCommand]
int kpMacroCommand::size () const
{
#if DEBUG_KP_COMMAND_HISTORY && 0
kdDebug () << "kpMacroCommand::size()" << endl;
#endif
int s = 0;
#if DEBUG_KP_COMMAND_HISTORY && 0
kdDebug () << "\tcalculating:" << endl;
#endif
for (TQValueList <kpCommand *>::const_iterator it = m_commandList.begin ();
it != m_commandList.end ();
it++)
{
#if DEBUG_KP_COMMAND_HISTORY && 0
kdDebug () << "\t\tcurrentSize=" << s << " + "
<< (*it)->name () << ".size=" << (*it)->size ()
<< endl;
#endif
if (s > INT_MAX - (*it)->size ())
{
#if DEBUG_KP_COMMAND_HISTORY && 0
kdDebug () << "\t\t\toverflow" << endl;
#endif
s = INT_MAX;
break;
}
else
{
s += (*it)->size ();
}
}
#if DEBUG_KP_COMMAND_HISTORY && 0
kdDebug () << "\treturning " << s << endl;
#endif
return s;
}
// public virtual [base kpCommand]
void kpMacroCommand::execute ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpMacroCommand::execute()" << endl;
#endif
for (TQValueList <kpCommand *>::const_iterator it = m_commandList.begin ();
it != m_commandList.end ();
it++)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\texecuting " << (*it)->name () << endl;
#endif
(*it)->execute ();
}
}
// public virtual [base kpCommand]
void kpMacroCommand::unexecute ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpMacroCommand::unexecute()" << endl;
#endif
TQValueList <kpCommand *>::const_iterator it = m_commandList.end ();
it--;
while (it != m_commandList.end ())
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\tunexecuting " << (*it)->name () << endl;
#endif
(*it)->unexecute ();
it--;
}
}
// public
void kpMacroCommand::addCommand (kpCommand *command)
{
m_commandList.push_back (command);
}
//
// kpCommandHistoryBase
//
struct kpCommandHistoryBasePrivate
{
};
kpCommandHistoryBase::kpCommandHistoryBase (bool doReadConfig,
TDEActionCollection *ac)
: d (new kpCommandHistoryBasePrivate ())
{
m_actionUndo = new TDEToolBarPopupAction (undoActionText (),
TQString::fromLatin1 ("undo"),
TDEStdAccel::shortcut (TDEStdAccel::Undo),
this, TQT_SLOT (undo ()),
ac, KStdAction::name (KStdAction::Undo));
m_actionRedo = new TDEToolBarPopupAction (redoActionText (),
TQString::fromLatin1 ("redo"),
TDEStdAccel::shortcut (TDEStdAccel::Redo),
this, TQT_SLOT (redo ()),
ac, KStdAction::name (KStdAction::Redo));
m_actionUndo->setEnabled (false);
m_actionRedo->setEnabled (false);
connect (m_actionUndo->popupMenu (), TQT_SIGNAL (activated (int)),
this, TQT_SLOT (undoUpToNumber (int)));
connect (m_actionRedo->popupMenu (), TQT_SIGNAL (activated (int)),
this, TQT_SLOT (redoUpToNumber (int)));
m_undoMinLimit = 10;
m_undoMaxLimit = 500;
m_undoMaxLimitSizeLimit = 16 * 1048576;
m_documentRestoredPosition = 0;
if (doReadConfig)
readConfig ();
}
kpCommandHistoryBase::~kpCommandHistoryBase ()
{
clearPointerList (&m_undoCommandList);
clearPointerList (&m_redoCommandList);
delete d;
}
// public
int kpCommandHistoryBase::undoLimit () const
{
return undoMinLimit ();
}
// public
void kpCommandHistoryBase::setUndoLimit (int limit)
{
setUndoMinLimit (limit);
}
// public
int kpCommandHistoryBase::undoMinLimit () const
{
return m_undoMinLimit;
}
// public
void kpCommandHistoryBase::setUndoMinLimit (int limit)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::setUndoMinLimit("
<< limit << ")"
<< endl;
#endif
if (limit < 1 || limit > 5000/*"ought to be enough for anybody"*/)
{
kdError () << "kpCommandHistoryBase::setUndoMinLimit("
<< limit << ")"
<< endl;
return;
}
if (limit == m_undoMinLimit)
return;
m_undoMinLimit = limit;
trimCommandListsUpdateActions ();
}
// public
int kpCommandHistoryBase::undoMaxLimit () const
{
return m_undoMaxLimit;
}
// public
void kpCommandHistoryBase::setUndoMaxLimit (int limit)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::setUndoMaxLimit("
<< limit << ")"
<< endl;
#endif
if (limit < 1 || limit > 5000/*"ought to be enough for anybody"*/)
{
kdError () << "kpCommandHistoryBase::setUndoMaxLimit("
<< limit << ")"
<< endl;
return;
}
if (limit == m_undoMaxLimit)
return;
m_undoMaxLimit = limit;
trimCommandListsUpdateActions ();
}
// public
int kpCommandHistoryBase::undoMaxLimitSizeLimit () const
{
return m_undoMaxLimitSizeLimit;
}
// public
void kpCommandHistoryBase::setUndoMaxLimitSizeLimit (int sizeLimit)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::setUndoMaxLimitSizeLimit("
<< sizeLimit << ")"
<< endl;
#endif
if (sizeLimit < 0 ||
sizeLimit > (500 * 1048576)/*"ought to be enough for anybody"*/)
{
kdError () << "kpCommandHistoryBase::setUndoMaxLimitSizeLimit("
<< sizeLimit << ")"
<< endl;
return;
}
if (sizeLimit == m_undoMaxLimitSizeLimit)
return;
m_undoMaxLimitSizeLimit = sizeLimit;
trimCommandListsUpdateActions ();
}
// public
void kpCommandHistoryBase::readConfig ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::readConfig()" << endl;
#endif
TDEConfigGroupSaver cfgGroupSaver (kapp->config (), kpSettingsGroupUndoRedo);
TDEConfigBase *cfg = cfgGroupSaver.config ();
setUndoMinLimit (cfg->readNumEntry (kpSettingUndoMinLimit, undoMinLimit ()));
setUndoMaxLimit (cfg->readNumEntry (kpSettingUndoMaxLimit, undoMaxLimit ()));
setUndoMaxLimitSizeLimit (cfg->readNumEntry (kpSettingUndoMaxLimitSizeLimit,
undoMaxLimitSizeLimit ()));
trimCommandListsUpdateActions ();
}
// public
void kpCommandHistoryBase::writeConfig ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::writeConfig()" << endl;
#endif
TDEConfigGroupSaver cfgGroupSaver (kapp->config (), kpSettingsGroupUndoRedo);
TDEConfigBase *cfg = cfgGroupSaver.config ();
cfg->writeEntry (kpSettingUndoMinLimit, undoMinLimit ());
cfg->writeEntry (kpSettingUndoMaxLimit, undoMaxLimit ());
cfg->writeEntry (kpSettingUndoMaxLimitSizeLimit, undoMaxLimitSizeLimit ());
cfg->sync ();
}
// public
void kpCommandHistoryBase::addCommand (kpCommand *command, bool execute)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::addCommand("
<< command
<< ",execute=" << execute << ")"
<< endl;
#endif
if (execute)
command->execute ();
m_undoCommandList.push_front (command);
clearPointerList (&m_redoCommandList);
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\tdocumentRestoredPosition=" << m_documentRestoredPosition
<< endl;
#endif
if (m_documentRestoredPosition != INT_MAX)
{
if (m_documentRestoredPosition > 0)
m_documentRestoredPosition = INT_MAX;
else
m_documentRestoredPosition--;
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\t\tdocumentRestoredPosition=" << m_documentRestoredPosition
<< endl;
#endif
}
trimCommandListsUpdateActions ();
}
// public
void kpCommandHistoryBase::clear ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::clear()" << endl;
#endif
clearPointerList (&m_undoCommandList);
clearPointerList (&m_redoCommandList);
m_documentRestoredPosition = 0;
updateActions ();
}
// protected slot
void kpCommandHistoryBase::undoInternal ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::undoInternal()" << endl;
#endif
kpCommand *undoCommand = nextUndoCommand ();
if (!undoCommand)
return;
undoCommand->unexecute ();
m_undoCommandList.erase (m_undoCommandList.begin ());
m_redoCommandList.push_front (undoCommand);
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\tdocumentRestoredPosition=" << m_documentRestoredPosition
<< endl;
#endif
if (m_documentRestoredPosition != INT_MAX)
{
m_documentRestoredPosition++;
if (m_documentRestoredPosition == 0)
emit documentRestored ();
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\t\tdocumentRestoredPosition=" << m_documentRestoredPosition
<< endl;
#endif
}
}
// protected slot
void kpCommandHistoryBase::redoInternal ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::redoInternal()" << endl;
#endif
kpCommand *redoCommand = nextRedoCommand ();
if (!redoCommand)
return;
redoCommand->execute ();
m_redoCommandList.erase (m_redoCommandList.begin ());
m_undoCommandList.push_front (redoCommand);
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\tdocumentRestoredPosition=" << m_documentRestoredPosition
<< endl;
#endif
if (m_documentRestoredPosition != INT_MAX)
{
m_documentRestoredPosition--;
if (m_documentRestoredPosition == 0)
emit documentRestored ();
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\t\tdocumentRestoredPosition=" << m_documentRestoredPosition
<< endl;
#endif
}
}
// public slot virtual
void kpCommandHistoryBase::undo ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::undo()" << endl;
#endif
undoInternal ();
trimCommandListsUpdateActions ();
}
// public slot virtual
void kpCommandHistoryBase::redo ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::redo()" << endl;
#endif
redoInternal ();
trimCommandListsUpdateActions ();
}
// public slot virtual
void kpCommandHistoryBase::undoUpToNumber (int which)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::undoUpToNumber(" << which << ")" << endl;
#endif
for (int i = 0;
i <= which && !m_undoCommandList.isEmpty ();
i++)
{
undoInternal ();
}
trimCommandListsUpdateActions ();
}
// public slot virtual
void kpCommandHistoryBase::redoUpToNumber (int which)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::redoUpToNumber(" << which << ")" << endl;
#endif
for (int i = 0;
i <= which && !m_redoCommandList.isEmpty ();
i++)
{
redoInternal ();
}
trimCommandListsUpdateActions ();
}
// protected
TQString kpCommandHistoryBase::undoActionText () const
{
kpCommand *undoCommand = nextUndoCommand ();
if (undoCommand)
return i18n ("&Undo: %1").arg (undoCommand->name ());
else
return i18n ("&Undo");
}
// protected
TQString kpCommandHistoryBase::redoActionText () const
{
kpCommand *redoCommand = nextRedoCommand ();
if (redoCommand)
return i18n ("&Redo: %1").arg (redoCommand->name ());
else
return i18n ("&Redo");
}
// protected
void kpCommandHistoryBase::trimCommandListsUpdateActions ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::trimCommandListsUpdateActions()" << endl;
#endif
trimCommandLists ();
updateActions ();
}
// protected
void kpCommandHistoryBase::trimCommandList (TQValueList <kpCommand *> *commandList)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::trimCommandList()" << endl;
TQTime timer; timer.start ();
#endif
if (!commandList)
{
kdError () << "kpCommandHistoryBase::trimCommandList() passed 0 commandList"
<< endl;
return;
}
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\tsize=" << commandList->size ()
<< " undoMinLimit=" << m_undoMinLimit
<< " undoMaxLimit=" << m_undoMaxLimit
<< " undoMaxLimitSizeLimit=" << m_undoMaxLimitSizeLimit
<< endl;
#endif
if ((int) commandList->size () <= m_undoMinLimit)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\t\tsize under undoMinLimit - done" << endl;
#endif
return;
}
#if DEBUG_KP_COMMAND_HISTORY && 0
kdDebug () << "\tsize over undoMinLimit - iterating thru cmds:" << endl;
#endif
TQValueList <kpCommand *>::iterator it = commandList->begin ();
int upto = 0;
int sizeSoFar = 0;
while (it != commandList->end ())
{
bool advanceIt = true;
if (sizeSoFar <= m_undoMaxLimitSizeLimit)
{
if (sizeSoFar > INT_MAX - (*it)->size ())
sizeSoFar = INT_MAX;
else
sizeSoFar += (*it)->size ();
}
#if DEBUG_KP_COMMAND_HISTORY && 0
kdDebug () << "\t\t" << upto << ":"
<< " name='" << (*it)->name ()
<< "' size=" << (*it)->size ()
<< " sizeSoFar=" << sizeSoFar
<< endl;
#endif
if (upto >= m_undoMinLimit)
{
if (upto >= m_undoMaxLimit ||
sizeSoFar > m_undoMaxLimitSizeLimit)
{
#if DEBUG_KP_COMMAND_HISTORY && 0
kdDebug () << "\t\t\tkill" << endl;
#endif
delete (*it);
it = m_undoCommandList.erase (it);
advanceIt = false;
}
}
if (advanceIt)
it++;
upto++;
}
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\ttook " << timer.elapsed () << "ms" << endl;
#endif
}
// protected
void kpCommandHistoryBase::trimCommandLists ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::trimCommandLists()" << endl;
#endif
trimCommandList (&m_undoCommandList);
trimCommandList (&m_redoCommandList);
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\tdocumentRestoredPosition=" << m_documentRestoredPosition
<< endl;
#endif
if (m_documentRestoredPosition != INT_MAX)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\t\tundoCmdList.size=" << m_undoCommandList.size ()
<< " redoCmdList.size=" << m_redoCommandList.size ()
<< endl;
#endif
if (m_documentRestoredPosition > (int) m_redoCommandList.size () ||
-m_documentRestoredPosition > (int) m_undoCommandList.size ())
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\t\t\tinvalidate documentRestoredPosition" << endl;
#endif
m_documentRestoredPosition = INT_MAX;
}
}
}
static void populatePopupMenu (TDEPopupMenu *popupMenu,
const TQString &undoOrRedo,
const TQValueList <kpCommand *> &commandList)
{
if (!popupMenu)
return;
popupMenu->clear ();
TQValueList <kpCommand *>::const_iterator it = commandList.begin ();
int i = 0;
while (i < 10 && it != commandList.end ())
{
popupMenu->insertItem (i18n ("%1: %2").arg (undoOrRedo).arg ((*it)->name ()), i/*id*/);
i++, it++;
}
if (it != commandList.end ())
{
// TODO: maybe have a scrollview show all the items instead
TDEPopupTitle *title = new TDEPopupTitle (popupMenu);
title->setTitle (i18n ("%n more item", "%n more items",
commandList.size () - i));
popupMenu->insertItem (title);
}
}
// protected
void kpCommandHistoryBase::updateActions ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::updateActions()" << endl;
#endif
m_actionUndo->setEnabled ((bool) nextUndoCommand ());
m_actionUndo->setText (undoActionText ());
#if DEBUG_KP_COMMAND_HISTORY
TQTime timer; timer.start ();
#endif
populatePopupMenu (m_actionUndo->popupMenu (),
i18n ("Undo"),
m_undoCommandList);
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\tpopuplatePopupMenu undo=" << timer.elapsed ()
<< "ms" << endl;;
#endif
m_actionRedo->setEnabled ((bool) nextRedoCommand ());
m_actionRedo->setText (redoActionText ());
#if DEBUG_KP_COMMAND_HISTORY
timer.restart ();
#endif
populatePopupMenu (m_actionRedo->popupMenu (),
i18n ("Redo"),
m_redoCommandList);
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\tpopuplatePopupMenu redo=" << timer.elapsed ()
<< "ms" << endl;
#endif
}
// public
kpCommand *kpCommandHistoryBase::nextUndoCommand () const
{
if (m_undoCommandList.isEmpty ())
return 0;
return m_undoCommandList.first ();
}
// public
kpCommand *kpCommandHistoryBase::nextRedoCommand () const
{
if (m_redoCommandList.isEmpty ())
return 0;
return m_redoCommandList.first ();
}
// public
void kpCommandHistoryBase::setNextUndoCommand (kpCommand *command)
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::setNextUndoCommand("
<< command
<< ")"
<< endl;
#endif
if (m_undoCommandList.isEmpty ())
return;
delete m_undoCommandList [0];
m_undoCommandList [0] = command;
trimCommandListsUpdateActions ();
}
// public slot virtual
void kpCommandHistoryBase::documentSaved ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistoryBase::documentSaved()" << endl;
#endif
m_documentRestoredPosition = 0;
}
//
// kpCommandHistory
//
kpCommandHistory::kpCommandHistory (bool doReadConfig, kpMainWindow *mainWindow)
: kpCommandHistoryBase (doReadConfig, mainWindow->actionCollection ()),
m_mainWindow (mainWindow)
{
}
kpCommandHistory::~kpCommandHistory ()
{
}
// public slot virtual [base KCommandHistory]
void kpCommandHistory::undo ()
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "kpCommandHistory::undo() CALLED!" << endl;
#endif
if (m_mainWindow && m_mainWindow->toolHasBegunShape ())
{
#if DEBUG_KP_COMMAND_HISTORY
kdDebug () << "\thas begun shape - cancel draw" << endl;
#endif
m_mainWindow->tool ()->cancelShapeInternal ();
}
else
kpCommandHistoryBase::undo ();
}
// public slot virtual [base KCommandHistory]
void kpCommandHistory::redo ()
{
if (m_mainWindow && m_mainWindow->toolHasBegunShape ())
{
// Not completely obvious but what else can we do?
//
// Ignoring the request would not be intuitive for tools like
// Polygon & Polyline (where it's not always apparent to the user
// that s/he's still drawing a shape even though the mouse isn't
// down).
m_mainWindow->tool ()->cancelShapeInternal ();
}
else
kpCommandHistoryBase::redo ();
}
#include <kpcommandhistory.moc>
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