Added link action.

--HG--
branch : dfighter-tools
This commit is contained in:
dfighter1985 2014-09-12 21:01:29 +02:00
parent e2ea5a74b8
commit 83566116d9
2 changed files with 24 additions and 8 deletions

View file

@ -28,7 +28,7 @@ QWidget( parent )
{ {
m_ui.setupUi( this ); m_ui.setupUi( this );
m_hasSelection = false; m_selectionCount = 0;
m_scene = new QGraphicsScene( this ); m_scene = new QGraphicsScene( this );
m_ui.view->setScene( m_scene ); m_ui.view->setScene( m_scene );
@ -51,10 +51,16 @@ void ExpressionEditor::contextMenuEvent( QContextMenuEvent *e )
a = menu.addAction( "Add rect" ); a = menu.addAction( "Add rect" );
connect( a, SIGNAL( triggered() ), this, SLOT( onAddRect() ) ); connect( a, SIGNAL( triggered() ), this, SLOT( onAddRect() ) );
if( m_hasSelection ) if( m_selectionCount > 0 )
{ {
a = menu.addAction( "Remove" ); a = menu.addAction( "Remove" );
connect( a, SIGNAL( triggered() ), this, SLOT( onDeleteSelection() ) ); connect( a, SIGNAL( triggered() ), this, SLOT( onDeleteSelection() ) );
if( m_selectionCount == 2 )
{
a = menu.addAction( "Link" );
connect( a, SIGNAL( triggered() ), this, SLOT( onLinkItems() ) );
}
} }
menu.exec( e->globalPos() ); menu.exec( e->globalPos() );
@ -78,11 +84,19 @@ void ExpressionEditor::onDeleteSelection()
void ExpressionEditor::onSelectionChanged() void ExpressionEditor::onSelectionChanged()
{ {
QList< QGraphicsItem* > l = m_scene->selectedItems(); QList< QGraphicsItem* > l = m_scene->selectedItems();
if( l.isEmpty() ) m_selectionCount = l.count();
m_hasSelection = false; }
else
m_hasSelection = true; void ExpressionEditor::onLinkItems()
{
QList< QGraphicsItem* > l = m_scene->selectedItems();
QGraphicsItem *from = l[ 0 ];
QGraphicsItem *to = l[ 1 ];
QGraphicsLineItem *line = new QGraphicsLineItem();
line->setLine( QLineF( from->pos(), to->pos() ) );
line->setPen( QPen( Qt::darkRed, 1.0 ) );
m_scene->addItem( line );
} }

View file

@ -38,12 +38,14 @@ private Q_SLOTS:
void onAddRect(); void onAddRect();
void onDeleteSelection(); void onDeleteSelection();
void onSelectionChanged(); void onSelectionChanged();
void onLinkItems();
private: private:
Ui::ExpressionEditor m_ui; Ui::ExpressionEditor m_ui;
QGraphicsScene *m_scene; QGraphicsScene *m_scene;
bool m_hasSelection; int m_selectionCount;
}; };
#endif #endif