bool CodeDocument::loadFromStream (InputStream& stream)
{
replaceAllContent (stream.readEntireStreamAsString());
setSavePoint();
clearUndoHistory();
return true;
}
void CodeDocument::setDisableUndo(bool shouldBeDisabled)
{
if (shouldBeDisabled)
clearUndoHistory();
undoDisabled = shouldBeDisabled;
}
bool MainWindow::loadProject( QString fileName )
{
try
{
QDir d = QFileInfo( fileName ).absoluteDir();
QString projectDir = QDir::cleanPath( d.absolutePath() );
QFile file( fileName );
if ( !file.open( QIODevice::ReadOnly ) )
throw std::runtime_error( "cant open project file" );
QDomDocument doc;
if ( !doc.setContent( &file ) )
throw std::runtime_error( "cant load project file" );
QDomElement root = doc.documentElement();
if ( root.tagName() != "project" )
throw std::runtime_error( "invalid project format" );
clearUndoHistory();
project.load( root, projectDir );
invalidateAll();
spriteView->load(root);
graphicsView->load( root );
}
catch (...)
{
return false;
}
return true;
}
bool UndoManager::redo()
{
const OwnedArray<UndoableAction>* const commandSet = transactions [nextIndex];
if (commandSet == 0)
return false;
reentrancyCheck = true;
bool failed = false;
for (int i = 0; i < commandSet->size(); ++i)
{
if (! commandSet->getUnchecked(i)->perform())
{
jassertfalse;
failed = true;
break;
}
}
reentrancyCheck = false;
if (failed)
clearUndoHistory();
else
++nextIndex;
beginNewTransaction();
sendChangeMessage();
return true;
}
bool UndoManager::undo()
{
const OwnedArray<UndoableAction>* const commandSet = transactions [nextIndex - 1];
if (commandSet == nullptr)
return false;
bool failed = false;
{
const ScopedValueSetter<bool> setter (reentrancyCheck, true);
for (int i = commandSet->size(); --i >= 0;)
{
if (! commandSet->getUnchecked(i)->undo())
{
jassertfalse;
failed = true;
break;
}
}
}
if (failed)
clearUndoHistory();
else
--nextIndex;
beginNewTransaction();
sendChangeMessage();
return true;
}
bool CodeDocument::loadFromStream (InputStream& stream)
{
remove (0, getNumCharacters(), false);
insert (stream.readEntireStreamAsString(), 0, false);
setSavePoint();
clearUndoHistory();
return true;
}
void MainWindow::newProject()
{
clearUndoHistory();
project.newProject();
invalidateAll();
spriteView->setCurrentIndex(spriteModel->getRootIndex());
graphicsView->newProject(); // reset guide lines
}
bool UndoManager::redo()
{
if (auto* s = getNextSet())
{
const ScopedValueSetter<bool> setter (reentrancyCheck, true);
if (s->perform())
++nextIndex;
else
clearUndoHistory();
beginNewTransaction();
sendChangeMessage();
return true;
}
return false;
}
bool UndoManager::undo()
{
if (const ActionSet* const s = getCurrentSet())
{
const ScopedValueSetter<bool> setter (reentrancyCheck, true);
if (s->undo())
--nextIndex;
else
clearUndoHistory();
beginNewTransaction();
sendChangeMessage();
return true;
}
return false;
}
void CommandManager::slotCmdFinished()
{
if( !m_current_command )
{
return;
}
if( m_current_command->storeInUndoList() )
{
if( m_current_command->isUndoable() )
{
int maxindex = m_undo_vec.size()-1;
if( m_undo_pos != maxindex )
{
// todo: clear undo vec from current position upwards
int num_remove_cmds = maxindex - m_undo_pos;
for( ; num_remove_cmds > 0; --num_remove_cmds )
{
m_undo_vec.pop_back();
}
}
// put current cmd into undo stack
m_undo_vec.push_back( m_current_command );
m_undo_pos = m_undo_vec.size()-1;
}
else
{
clearUndoHistory();
}
if( m_current_command->isRepeatable() )
{
m_previous_command = m_current_command;
}
else
{
m_previous_command.reset();
}
}
m_current_command.reset();
}
bool MainWindow::saveProject( QString fileName )
{
if ( fileName.isEmpty() )
return false;
try
{
QDir d = QFileInfo( fileName ).absoluteDir();
QString projectDir = QDir::cleanPath( d.absolutePath() );
QDomDocument doc;
QDomProcessingInstruction xmlHeaderPI = doc.createProcessingInstruction( "xml", "version=\"1.0\" " );
doc.appendChild( xmlHeaderPI );
QDomElement root = doc.createElement( "project" );
root.setAttribute( "version", 1 );
doc.appendChild( root );
project.save( root, projectDir );
spriteView->save(root);
graphicsView->save( root );
QFile outFile( fileName );
if ( !outFile.open( QIODevice::WriteOnly | QIODevice::Text ) )
throw std::runtime_error( "cant open project file" );
QTextStream stream( &outFile );
stream << doc.toString();
clearUndoHistory();
}
catch ( ... )
{
return false;
}
return true;
}
UndoManager::~UndoManager()
{
clearUndoHistory();
}
