Also manage a list of all areas in a group.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38516 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/decorators/SATDecorator/SATGroup.cpp

@@ -18,6 +18,8 @@
 WindowArea::WindowArea(Crossing* leftTop, Crossing* rightTop,
 	Crossing* leftBottom, Crossing* rightBottom)
 	:
+	fGroup(NULL),
+
 	fLeftTopCrossing(leftTop),
 	fRightTopCrossing(rightTop),
 	fLeftBottomCrossing(leftBottom),
@@ -27,9 +29,24 @@ WindowArea::WindowArea(Crossing* leftTop, Crossing* rightTop,
 }
 
 
+bool
+WindowArea::SetGroup(SATGroup* group)
+{
+	if (group && !group->fWindowAreaList.AddItem(this))
+		return false;
+
+	if (fGroup)
+		fGroup->fWindowAreaList.RemoveItem(this);
+
+	fGroup = group;
+	return true;
+}
+
+
 WindowArea::~WindowArea()
 {
 	_CleanupCorners();
+	SetGroup(NULL);
 }
 
 
@@ -613,6 +630,11 @@ SATGroup::AddWindow(SATWindow* window, Tab* left, Tab* top, Tab* right,
 		leftBottomRef, rightBottomRef);
 	if (!area)
 		return false;
+	// the area register itself in our area list
+	if (!area->SetGroup(this)) {
+		delete area;
+		return false;
+	}
 	// delete the area if AddWindow failed / release our reference on it
 	BReference<WindowArea> areaRef(area, true);
 
@@ -649,8 +671,9 @@ SATGroup::RemoveWindow(SATWindow* window)
 
 	_SplitGroupIfNecessary(window);
 
-	if (window->GetWindowArea())
-		window->GetWindowArea()->_RemoveWindow(window);
+	WindowArea* area = window->GetWindowArea();
+	if (area)
+		area->_RemoveWindow(window);
 
 	for (int i = 0; i < CountItems(); i++)
 		WindowAt(i)->DoGroupLayout();

src/add-ons/decorators/SATDecorator/SATGroup.h

@@ -130,6 +130,8 @@ public:
 									Crossing* rightBottom);
 								~WindowArea();
 
+		bool					SetGroup(SATGroup* group);
+
 		const SATWindowList&	WindowList() { return fWindowList; }
 		bool					MoveWindowToPosition(SATWindow* window,
 									int32 index);
@@ -174,6 +176,8 @@ private:
 		BReference<Crossing>	_CrossingByPosition(Crossing* crossing,
 									SATGroup* group);
 
+		SATGroup*				fGroup;
+
 		SATWindowList			fWindowList;
 
 		BReference<Crossing>	fLeftTopCrossing;
@@ -252,6 +256,7 @@ private:
 								BRect& screen);
 
 protected:
+		WindowAreaList		fWindowAreaList;
 		SATWindowList		fSATWindowList;
 
 		LinearSpec			fLinearSpec;

src/add-ons/decorators/SATDecorator/SATWindow.cpp

@@ -162,7 +162,7 @@ GroupCookie::Init(SATGroup* group, WindowArea* area)
 		fRightBorder, OperatorType(LE), -minWidth);
 	fMinHeightConstraint = linearSpec->AddConstraint(1.0, fTopBorder, -1.0,
 		fBottomBorder, OperatorType(LE), -minHeight);
-	
+
 	// The width and height constraints have higher penalties than the
 	// position constraints (left, top), so a window will keep its size
 	// unless explicitly resized.
@@ -179,7 +179,7 @@ GroupCookie::Init(SATGroup* group, WindowArea* area)
 		Uninit();
 		return false;
 	}
-	
+
 	fLeftBorderConstraint = area->LeftTab()->Connect(fLeftBorder);
 	fTopBorderConstraint = area->TopTab()->Connect(fTopBorder);
 	fRightBorderConstraint = area->RightTab()->Connect(fRightBorder);
@@ -244,7 +244,7 @@ GroupCookie::PropagateToGroup(SATGroup* group, WindowArea* area)
 	if (!Init(group, area))
 		return false;
 
-	if (!group->fSATWindowList.AddItem(fSATWindow)) {
+	if (!area->SetGroup(group) || !group->fSATWindowList.AddItem(fSATWindow)) {
 		Uninit();
 		return false;
 	}