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Fix handling of overlapping item commands

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This commit is contained in:
Nyall Dawson 2017-10-10 09:06:02 +10:00
parent 8fb2c3cf6e
commit 30eab10619
3 changed files with 43 additions and 8 deletions
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18
src/core/layout/qgslayoutundostack.cpp
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@ -44,19 +44,20 @@ void QgsLayoutUndoStack::beginCommand( QgsLayoutUndoObjectInterface *object, con
return;
}
mActiveCommand.reset( object->createCommand( commandText, id, nullptr ) );
mActiveCommand->saveBeforeState();
mActiveCommands.emplace_back( std::unique_ptr< QgsAbstractLayoutUndoCommand >( object->createCommand( commandText, id, nullptr ) ) );
mActiveCommands.back()->saveBeforeState();
}
void QgsLayoutUndoStack::endCommand()
{
if ( !mActiveCommand )
if ( mActiveCommands.empty() )
return;
mActiveCommand->saveAfterState();
if ( mActiveCommand->containsChange() ) //protect against empty commands
mActiveCommands.back()->saveAfterState();
if ( mActiveCommands.back()->containsChange() ) //protect against empty commands
{
mUndoStack->push( mActiveCommand.release() );
mUndoStack->push( mActiveCommands.back().release() );
mActiveCommands.pop_back();
mLayout->project()->setDirty( true );
}
@ -64,7 +65,10 @@ void QgsLayoutUndoStack::endCommand()
void QgsLayoutUndoStack::cancelCommand()
{
mActiveCommand.reset();
if ( mActiveCommands.empty() )
return;
mActiveCommands.pop_back();
}
QUndoStack *QgsLayoutUndoStack::stack()

2
src/core/layout/qgslayoutundostack.h
View File

@ -104,7 +104,7 @@ class CORE_EXPORT QgsLayoutUndoStack
std::unique_ptr< QUndoStack > mUndoStack;
std::unique_ptr< QgsAbstractLayoutUndoCommand > mActiveCommand;
std::vector< std::unique_ptr< QgsAbstractLayoutUndoCommand > > mActiveCommands;
#ifdef SIP_RUN
QgsLayoutUndoStack( const QgsLayoutUndoStack &other );

31
tests/src/core/testqgslayoutitem.cpp
View File

@ -149,6 +149,7 @@ class TestQgsLayoutItem: public QObject
void writeReadXmlProperties();
void undoRedo();
void multiItemUndo();
void overlappingUndo();
private:
@ -1481,6 +1482,36 @@ void TestQgsLayoutItem::multiItemUndo()
QCOMPARE( item->positionWithUnits(), QgsLayoutPoint( 10, 10 ) );
}
void TestQgsLayoutItem::overlappingUndo()
{
QgsProject proj;
QgsLayout l( &proj );
QgsLayoutItemRectangularShape *item = new QgsLayoutItemRectangularShape( &l );
l.addLayoutItem( item );
item->attemptMove( QgsLayoutPoint( 10, 10 ) );
QgsLayoutItemRectangularShape *item2 = new QgsLayoutItemRectangularShape( &l );
l.addLayoutItem( item2 );
item2->attemptMove( QgsLayoutPoint( 20, 20 ) );
//commands overlap
l.undoStack()->beginCommand( item, tr( "Item moved" ), QgsLayoutItem::UndoIncrementalMove );
item->attemptMove( QgsLayoutPoint( 1, 1 ) );
l.undoStack()->beginCommand( item2, tr( "Item moved" ), QgsLayoutItem::UndoIncrementalMove );
item2->attemptMove( QgsLayoutPoint( 21, 21 ) );
l.undoStack()->endCommand();
l.undoStack()->endCommand();
// undo should remove item move
l.undoStack()->stack()->undo();
QCOMPARE( item2->positionWithUnits(), QgsLayoutPoint( 21, 21 ) );
QCOMPARE( item->positionWithUnits(), QgsLayoutPoint( 10, 10 ) );
l.undoStack()->stack()->undo();
QCOMPARE( item2->positionWithUnits(), QgsLayoutPoint( 20, 20 ) );
QCOMPARE( item->positionWithUnits(), QgsLayoutPoint( 10, 10 ) );
}
QgsLayoutItem *TestQgsLayoutItem::createCopyViaXml( QgsLayout *layout, QgsLayoutItem *original )
{
//save original item to xml