Allow for pressing spacebar to lock the item

2 files changed, 47 insertions, 2 deletions

diff --git a/sigmodr/widgets/mapeditor/WorldMapItem.cpp b/sigmodr/widgets/mapeditor/WorldMapItem.cpp
index 588cecb1..9b44b143 100644
--- a/sigmodr/widgets/mapeditor/WorldMapItem.cpp
+++ b/sigmodr/widgets/mapeditor/WorldMapItem.cpp
@@ -29,15 +29,23 @@
 #include <KColorScheme>
 
 // Qt includes
+#include <QtCore/QtConcurrentFilter>
 #include <QtGui/QGraphicsScene>
 #include <QtGui/QGraphicsSceneMouseEvent>
 #include <QtGui/QGraphicsSimpleTextItem>
+#include <QtGui/QKeyEvent>
 #include <QtGui/QPainter>
 #include <QtGui/QStyleOptionGraphicsItem>
 
 using namespace Sigmod;
 using namespace Sigmodr::Widgets;
 
+bool isSetWorldMapItem(QGraphicsItem* item)
+{
+    WorldMapItem* world = qgraphicsitem_cast<WorldMapItem*>(item);
+    return world && world->isLocked();
+}
+
 WorldMapItem::WorldMapItem(Game* game, Map* map, QGraphicsScene* parent) :
         QObject(parent),
         m_game(game),
@@ -96,6 +104,11 @@ int WorldMapItem::type() const
     return Type;
 }
 
+bool WorldMapItem::isLocked() const
+{
+    return m_locked;
+}
+
 void WorldMapItem::hoverEnterEvent(QGraphicsSceneHoverEvent* event)
 {
     m_label->show();
@@ -112,11 +125,39 @@ void WorldMapItem::hoverLeaveEvent(QGraphicsSceneHoverEvent* event)
 
 void WorldMapItem::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
 {
+    QList<QGraphicsItem*> items = scene()->items();
+    QtConcurrent::blockingFilter(items, isSetWorldMapItem);
+    items.removeAll(this);
+    if (items.size())
     {
+    }
+    else
         QGraphicsItem::mouseMoveEvent(event);
-        moveTo(scenePos().toPoint());
-        update();
+    moveTo(scenePos().toPoint());
+    update();
+}
+
+void WorldMapItem::keyPressEvent(QKeyEvent* event)
+{
+    if (event->key() == Qt::Key_Space)
+    {
+        QList<QGraphicsItem*> items;
+        if (!m_locked)
+        {
+            items = scene()->items(QRectF(scenePos(), boundingRect().adjusted(1, 1, -1, -1).size()));
+            QtConcurrent::blockingFilter(items, isSetWorldMapItem);
+            items.removeAll(this);
+        }
+        if (!items.size())
+        {
+            event->accept();
+            m_locked = !m_locked;
+            setFlag(ItemIsMovable, !m_locked);
+            update();
+            return;
+        }
     }
+    event->ignore();
 }
 
 void WorldMapItem::moveTo(const QPoint& point)
diff --git a/sigmodr/widgets/mapeditor/WorldMapItem.h b/sigmodr/widgets/mapeditor/WorldMapItem.h
index e6cef81b..38e70098 100644
--- a/sigmodr/widgets/mapeditor/WorldMapItem.h
+++ b/sigmodr/widgets/mapeditor/WorldMapItem.h
@@ -59,6 +59,8 @@ class SIGMODRWIDGETS_NO_EXPORT WorldMapItem : public QObject, public QGraphicsIt
         bool collidesWithItem(const QGraphicsItem* other, const Qt::ItemSelectionMode mode = Qt::IntersectsItemShape) const;
         
         int type() const;
+        
+        bool isLocked() const;
     signals:
         void changed();
         
@@ -67,6 +69,7 @@ class SIGMODRWIDGETS_NO_EXPORT WorldMapItem : public QObject, public QGraphicsIt
         void hoverEnterEvent(QGraphicsSceneHoverEvent* event);
         void hoverLeaveEvent(QGraphicsSceneHoverEvent* event);
         void mouseMoveEvent(QGraphicsSceneMouseEvent* event);
+        void keyPressEvent(QKeyEvent* event);
         
         void moveTo(const QPoint& point);
     protected slots:
@@ -76,6 +79,7 @@ class SIGMODRWIDGETS_NO_EXPORT WorldMapItem : public QObject, public QGraphicsIt
         
         Sigmod::Game* m_game;
         Sigmod::Map* m_map;
+        bool m_locked;
         QList<TileItem*> m_tiles;
         QGraphicsSimpleTextItem* m_tag;
         QGraphicsSimpleTextItem* m_label;