new layout system, new UI state/styles system

src/framework/ui/uianchorlayout.h

@@ -0,0 +1,59 @@
+#ifndef UIANCHORLAYOUT_H
+#define UIANCHORLAYOUT_H
+
+#include "uilayout.h"
+
+class UIAnchor
+{
+public:
+    UIAnchor(AnchorEdge anchoredEdge, const std::string& hookedWidgetId, AnchorEdge hookedEdge) :
+        m_anchoredEdge(anchoredEdge), m_hookedEdge(hookedEdge), m_hookedWidgetId(hookedWidgetId) { }
+
+    AnchorEdge getAnchoredEdge() const { return m_anchoredEdge; }
+    std::string getHookedWidgetId() const { return m_hookedWidgetId; }
+    AnchorEdge getHookedEdge() const { return m_hookedEdge; }
+
+private:
+    AnchorEdge m_anchoredEdge;
+    AnchorEdge m_hookedEdge;
+    std::string m_hookedWidgetId;
+};
+
+class UIAnchorGroup
+{
+public:
+    UIAnchorGroup() : m_updated(true) { }
+
+    void addAnchor(const UIAnchor& anchor);
+    const std::vector<UIAnchor>& getAnchors() const { return m_anchors; }
+    bool isUpdated() const { return m_updated; }
+    void setUpdated(bool updated) { m_updated = updated; }
+
+private:
+    std::vector<UIAnchor> m_anchors;
+    bool m_updated;
+};
+
+class UIAnchorLayout : public UILayout
+{
+public:
+    UIAnchorLayout(UIWidgetPtr parentWidget) : UILayout(parentWidget) { }
+
+    void addAnchor(const UIWidgetPtr& anchoredWidget, AnchorEdge anchoredEdge,
+                   const std::string& hookedWidgetId, AnchorEdge hookedEdge);
+    void removeAnchors(const UIWidgetPtr& anchoredWidget);
+    void centerIn(const UIWidgetPtr& anchoredWidget, const std::string& hookedWidgetId);
+    void fill(const UIWidgetPtr& anchoredWidget, const std::string& hookedWidgetId);
+
+    void update();
+    void addWidget(const UIWidgetPtr& widget);
+    void removeWidget(const UIWidgetPtr& widget);
+
+    UIAnchorLayoutPtr asUIAnchorLayout() { return std::static_pointer_cast<UIAnchorLayout>(shared_from_this()); }
+
+private:
+    void updateWidget(const UIWidgetPtr& widget, UIAnchorGroup& anchorGroup);
+    std::map<UIWidgetPtr, UIAnchorGroup> m_anchorsGroups;
+};
+
+#endif