From 4add647f4c002b6d6a5e3d8dcb80467899f70abe Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sat, 10 Mar 2012 13:38:43 +0000
Subject: Have MapWidget remember the last selected Entity, implemented
 MapWidget::deleteSelected().

---
 src/mapwidget.cc | 48 +++++++++++++++++++++++++++++++++++++++---------
 src/mapwidget.h  | 12 +++++++++++-
 2 files changed, 50 insertions(+), 10 deletions(-)

diff --git a/src/mapwidget.cc b/src/mapwidget.cc
index 44ed785..581f57f 100644
--- a/src/mapwidget.cc
+++ b/src/mapwidget.cc
@@ -35,6 +35,8 @@ MapWidget::MapWidget(QWidget *parent) : QWidget(parent)
 	
 	is_dragging = false;
 	
+	mapwidget_selected = 0;
+	
 	setFocusPolicy(Qt::ClickFocus);
 }
 
@@ -134,6 +136,7 @@ void MapWidget::deselect()
 		entitywidget->set_selected(false);
 	}
 	
+	mapwidget_selected = 0;
 	emit propertiesChanged(0);	
 	mapwidget_manipulator->setMode(Manipulator::None);
 }
@@ -158,7 +161,9 @@ void MapWidget::dragEntity(EntityWidget *entity, int x, int y)
 
 void MapWidget::select(EntityWidget *entity)
 {
+	mapwidget_selected = 0;
 	mapwidget_manipulator->setMode(Manipulator::None);
+	
 	for (int i = 0; i < mapwidget_enties.size(); ++i) {
 		
 		EntityWidget *entitywidget = mapwidget_enties.at(i);
@@ -171,7 +176,7 @@ void MapWidget::select(EntityWidget *entity)
 			mapwidget_manipulator->setMode(Manipulator::Select);
 			mapwidget_manipulator->setProperties(entity->properties());
 			mapwidget_manipulator->setSize(entity);
-			
+			mapwidget_selected = entity;
 		} else {
 			
 			entitywidget->set_selected(false);
@@ -254,6 +259,16 @@ void MapWidget::paintEvent(QPaintEvent *event)
 	}
 }
 
+
+void MapWidget::save(QTextStream &textstream)
+{
+	for (int i = 0; i < mapwidget_enties.size(); ++i) {
+		
+		EntityWidget *entitywidget = mapwidget_enties.at(i);
+		entitywidget->properties()->save(textstream);
+	}
+}
+
 EntityWidget *MapWidget::addEntity()
 {
 	EntityWidget *entitywidget = new EntityWidget(this);
@@ -271,23 +286,38 @@ EntityWidget *MapWidget::addEntity()
 	return entitywidget;
 }
 
-void MapWidget::save(QTextStream &textstream)
+void MapWidget::duplicateSelected()
 {
 	for (int i = 0; i < mapwidget_enties.size(); ++i) {
 		
 		EntityWidget *entitywidget = mapwidget_enties.at(i);
-		entitywidget->properties()->save(textstream);
+		if (entitywidget->selected()) {
+			// duplicate the child widget
+			
+		} else {
+		}
 	}
 }
 
-void MapWidget::duplicateSelected()
-{
-
-}
-
 void MapWidget::deleteSelected()
 {
-
+	Entities::iterator i = mapwidget_enties.begin();
+	
+	while (i != mapwidget_enties.end()) {		
+		EntityWidget *entitywidget = (*i);
+		
+		if (entitywidget->selected()) {
+			// delete the child widget
+			delete entitywidget;
+			// set the pointer in the list to NULL
+			(*i) = 0;
+			// remove the actual list entry
+			i = mapwidget_enties.erase(i);
+		} else {
+			++i;
+		}
+	}
+	deselect();
 }
 
 }
diff --git a/src/mapwidget.h b/src/mapwidget.h
index 8d09209..2dde34f 100644
--- a/src/mapwidget.h
+++ b/src/mapwidget.h
@@ -35,6 +35,13 @@ public:
 	EntityWidget *addEntity();
 	
 	void save(QTextStream &textstream);
+	
+	/**
+	 * @brief return the currently selected entity
+	 * */
+	inline EntityWidget *selected() {
+		return mapwidget_selected;
+	}
 
 protected:
 	
@@ -113,6 +120,8 @@ private slots:
 	void dragEntity(EntityWidget *entity, int x, int y);
 	
 private:
+	typedef QList<EntityWidget *> Entities;
+	
 	int mapwidget_zoom;
 	int dragstart_x;
 	int dragstart_y;
@@ -122,7 +131,8 @@ private:
 	
 	bool is_dragging;
 
-	QList<EntityWidget *>	mapwidget_enties;
+	Entities		mapwidget_enties;
+	EntityWidget		*mapwidget_selected;
 	
 	Manipulator		*mapwidget_manipulator;
 };
-- 
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