Libraries: Create top level directory for libraries.

Things were getting a little crowded in the project root, so this patch
moves the Lib*/ directories into Libraries/.

1 files changed, 42 insertions, 0 deletions

diff --git a/Libraries/LibGUI/GTreeView.h b/Libraries/LibGUI/GTreeView.h
new file mode 100644
index 0000000000..6fe0df6e69
--- /dev/null
+++ b/Libraries/LibGUI/GTreeView.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <LibGUI/GAbstractView.h>
+
+class GTreeView : public GAbstractView {
+public:
+    explicit GTreeView(GWidget*);
+    virtual ~GTreeView() override;
+
+    virtual void scroll_into_view(const GModelIndex&, Orientation);
+    virtual const char* class_name() const override { return "GTreeView"; }
+
+protected:
+    virtual void paint_event(GPaintEvent&) override;
+    virtual void mousedown_event(GMouseEvent&) override;
+    virtual void keydown_event(GKeyEvent&) override;
+    virtual void did_update_selection() override;
+    virtual void did_update_model() override;
+
+private:
+    GModelIndex index_at_content_position(const Point&, bool& is_toggle) const;
+    int item_height() const { return 16; }
+    int max_item_width() const { return frame_inner_rect().width(); }
+    int indent_width_in_pixels() const { return 16; }
+    int icon_size() const { return 16; }
+    int icon_spacing() const { return 2; }
+    int toggle_size() const { return 9; }
+    int text_padding() const { return 2; }
+    void update_content_size();
+
+    template<typename Callback>
+    void traverse_in_paint_order(Callback) const;
+
+    struct MetadataForIndex;
+
+    MetadataForIndex& ensure_metadata_for_index(const GModelIndex&) const;
+
+    mutable HashMap<void*, OwnPtr<MetadataForIndex>> m_view_metadata;
+
+    RefPtr<GraphicsBitmap> m_expand_bitmap;
+    RefPtr<GraphicsBitmap> m_collapse_bitmap;
+};