288 lines
7.6 KiB
C++
288 lines
7.6 KiB
C++
#pragma once
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#ifndef TNZ_TREEVIEW_INCLUDED
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#define TNZ_TREEVIEW_INCLUDED
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#include "tw/tw.h"
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#include "tw/dragdrop.h"
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#include <set>
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#undef DVAPI
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#undef DVVAR
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#ifdef TWIN_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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#ifdef WIN32
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#pragma warning(disable : 4251)
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#endif
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//-------------------------------------------------------------------
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class TTreeView;
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class TTreeViewItem;
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class TTreeViewItemParent;
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class TScrollbar;
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class TTextField;
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class TContextMenu;
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//-------------------------------------------------------------------
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class DVAPI TTreeViewItemUpdater {
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public:
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virtual bool done() const = 0;
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virtual void next() = 0;
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virtual bool matchItem(const TTreeViewItem *) const = 0;
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virtual TTreeViewItem *createItem(TTreeViewItemParent *parent) const = 0;
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virtual ~TTreeViewItemUpdater() {}
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};
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//-------------------------------------------------------------------
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class DVAPI TTreeViewItemParent {
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TTreeView *m_treeView;
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protected:
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bool m_valid;
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typedef vector<TTreeViewItem *> ItemContainer;
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ItemContainer m_children;
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public:
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TTreeViewItemParent() : m_treeView(0), m_valid(true) {}
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virtual ~TTreeViewItemParent();
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void clearItems();
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int getItemCount() const;
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TTreeViewItem *getItem(int index) const;
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TTreeViewItem *getItem(wstring name) const;
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TTreeViewItem *getItem(string name) const;
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void addItem(TTreeViewItem *item);
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void removeItem(TTreeViewItem *item);
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void updateItems(TTreeViewItemUpdater &updater);
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bool hasChild(TTreeViewItem *item) const;
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virtual void onItemChange();
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void setTreeView(TTreeView *treeView) { m_treeView = treeView; }
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TTreeView *getTreeView() const { return m_treeView; }
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private:
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// not implemented
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TTreeViewItemParent(const TTreeViewItemParent &);
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TTreeViewItemParent &operator=(const TTreeViewItemParent &);
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};
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//-------------------------------------------------------------------
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class DVAPI TTreeViewItem : public TTreeViewItemParent {
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unsigned char m_status;
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TTreeViewItemParent *m_parent;
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public:
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TTreeViewItem(TTreeViewItemParent *parent);
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virtual ~TTreeViewItem();
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TTreeViewItemParent *getParent() const { return m_parent; }
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void setParent(TTreeViewItemParent *parent);
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void clearParent() { m_parent = 0; }
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virtual void onOpen() {}
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virtual void onClose() {}
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virtual void onDoubleClick();
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virtual TTreeViewItem *getSon(string sonName) { return 0; }
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virtual TTreeViewItem *getSon(wstring sonName) { return 0; }
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bool isLeaf() const;
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bool isEmpty() const;
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bool isOpen() const;
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bool isSelected() const;
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void open();
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void close();
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virtual void refresh();
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void setIsLeaf(bool isLeaf);
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void select(bool on);
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bool unselectDescendents(); // ritorna true se ce n'era uno selezionato
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// "origin" sono le coordinate del punto in basso a sinistra dell'icona
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virtual void drawIcon(TTreeView *w, const TPoint &origin);
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virtual void drawName(TTreeView *w, const TPoint &origin);
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virtual void draw(TTreeView *w, const TPoint &origin);
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virtual int getWidth(TTreeView *w);
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virtual wstring getName() const { return L"noname"; }
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virtual TDimension getIconSize() const;
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virtual wstring getTooltipString() { return wstring(); }
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virtual string getContextHelpReference() { return string(); }
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virtual bool isRenameEnabled() const { return false; }
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virtual void rename(wstring name){};
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virtual TContextMenu *createContextMenu() { return 0; }
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virtual bool acceptDrop(const TData *data) const { return false; }
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virtual bool drop(const TData *data) { return false; }
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virtual bool click(const TPoint &p) { return false; }
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virtual bool drag(const TPoint &p) { return false; }
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virtual bool rightClick(const TPoint &p);
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private:
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// not implemented
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TTreeViewItem(const TTreeViewItem &);
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TTreeViewItem &operator=(const TTreeViewItem &);
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};
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//-------------------------------------------------------------------
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class DVAPI TTreeView : public TWidget,
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public TTreeViewItemParent,
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public TDragDropListener {
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public:
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class Listener {
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public:
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virtual void onTreeViewSelect(TTreeView *treeView) = 0;
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virtual ~Listener() {}
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};
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protected:
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struct VisibleItem {
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TPoint m_pos;
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// m_pos e' la coordinata del punto in basso a sinistra dell'icona
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// (l'origine e' il punto in alto a sinistra della prima icona)
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int m_height;
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// m_height == getIconSize().ly
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TTreeViewItem *m_item;
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enum { LastSiblingFlag = 0x1, RootFlag = 0x2, SonFlag = 0x4 };
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int m_status;
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// int m_siblingLinkLength;
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// int m_childLinkLength;
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VisibleItem();
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};
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int m_xMargin, m_yMargin,
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m_iconMargin; // distanza orizzontale fra il bottone "+/-" e l'icona
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vector<VisibleItem> m_visibleItems;
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#ifndef MACOSX
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// togliere l'ifdef con il gcc3.3.2
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bool m_valid;
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#endif
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int m_height;
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int m_yoffset;
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int m_xoffset;
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// int m_selectedItemIndex;
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std::set<int> m_selectedItemIndices;
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TScrollbar *m_vScb, *m_hScb;
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TTextField *m_renameTextField;
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bool m_multiSelectionEnabled;
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int m_dropIndex;
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vector<Listener *> m_listeners;
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TPoint m_lastMousePos;
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public:
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// costruttore/distruttore
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TTreeView(TWidget *parent, string name = "treeView");
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~TTreeView();
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// listeners
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void addListener(Listener *listener);
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void removeListener(Listener *listener);
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void notifyListeners();
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// configure
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void setScrollbars(TScrollbar *h, TScrollbar *v);
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void enableMultiSelection(bool on);
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bool isMultiSelectionEnabled() const { return m_multiSelectionEnabled; }
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// resize
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void configureNotify(const TDimension &s);
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// draw
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void repaint();
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virtual void drawButton(const TPoint &p, bool open);
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// event handlers
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void leftButtonDown(const TMouseEvent &e);
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void leftButtonDrag(const TMouseEvent &e);
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void leftButtonUp(const TMouseEvent &e);
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void rightButtonDown(const TMouseEvent &e);
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void rightButtonDrag(const TMouseEvent &e);
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void rightButtonUp(const TMouseEvent &e);
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void middleButtonDown(const TMouseEvent &e);
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void middleButtonDrag(const TMouseEvent &e);
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void middleButtonUp(const TMouseEvent &e);
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void mouseWheel(const TMouseEvent &, int wheel);
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void leftButtonDoubleClick(const TMouseEvent &);
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TDropSource::DropEffect onEnter(const TDragDropListener::Event &event);
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TDropSource::DropEffect onOver(const TDragDropListener::Event &event);
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TDropSource::DropEffect onDrop(const TDragDropListener::Event &event);
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void onLeave();
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// to override
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virtual void onSelect(TTreeViewItem *item){};
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virtual bool startDragDrop(TTreeViewItem *item) { return false; }
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virtual void onExpand(TTreeViewItem *item){};
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virtual void onCollapse(TTreeViewItem *item){};
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// queries
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int getSelectedItemCount() const;
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TTreeViewItem *getSelectedItem(int index = 0) const;
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// selection
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void selectNone();
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void select(TTreeViewItem *item);
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void selectParent();
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void selectSon(string sonName);
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void selectItem(int index); // provvisorio
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// refresh
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void refreshCurrentItem();
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void refresh();
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// tooltips &helps
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wstring getTooltipString(const TPoint &);
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string getContextHelpReference(const TPoint &p);
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#ifndef MACOSX
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// togliere l'ifdef con il gcc3.3.2
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void onItemChange();
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#endif
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// misc
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void scrollToX(int x);
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void scrollToY(int y);
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void renameCurrentItem(wstring s);
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void updateVisibleItems();
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protected:
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void getPlacement(int index, TRect &rect);
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int getIndexFromY(int y);
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void addItemAndSons(TTreeViewItem *item, int indentation);
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void updateScrollbars();
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};
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#endif
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