298 lines
8 KiB
C
298 lines
8 KiB
C
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//-----------------------------------------------------------------------------
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// File: flextree.h
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//
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// Desc: Implements a tree class, similar to a Windows tree control,
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// based on CFlexWnd. It is used by the page to display the action
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// list when the user wishes to assign an action to a control.
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//
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// Copyright (C) 1999-2000 Microsoft Corporation. All Rights Reserved.
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//-----------------------------------------------------------------------------
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#ifndef __FLEXTREE_H__
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#define __FLEXTREE_H__
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#include "flexscrollbar.h"
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class CFTItem;
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class CFlexTree;
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typedef struct {
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CFlexTree *pTree;
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CFTItem *pItem, *pOldItem;
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POINT point;
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HDC hDC;
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WPARAM fwKeys;
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BOOL bLeft;
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} FLEXTREENOTIFY;
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enum {
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FTN_CLICK,
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FTN_OWNERDRAW,
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FTN_SELCHANGED,
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FTN_MOUSEOVER
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};
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enum {
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CLMF_NONE = 0x00000000,
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CLMF_TEXTCOLOR = 0x00000001,
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CLMF_BKCOLOR = 0x00000002,
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CLMF_BKMODE = 0x00000004,
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CLMF_BKEXTENDS = 0x00000008,
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CLMF_FONT = 0x00000010,
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CLMF_LINECOLOR = 0x00000020,
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CLMF_ALL = 0x0000003f
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};
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struct _CAPTIONLOOK;
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typedef struct _CAPTIONLOOK {
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_CAPTIONLOOK() : dwSize(sizeof(_CAPTIONLOOK)), dwMask(CLMF_NONE),
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rgbTextColor(RGB(0,0,0)), rgbBkColor(RGB(255,255,255)), rgbLineColor(RGB(255,0,0)), nBkMode(TRANSPARENT),
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bBkExtends(FALSE), hFont(NULL) {}
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DWORD dwSize;
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DWORD dwMask;
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COLORREF rgbTextColor, rgbBkColor, rgbLineColor, nBkMode;
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BOOL bBkExtends;
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HFONT hFont;
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} CAPTIONLOOK;
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typedef enum {
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ATTACH_FIRSTCHILD,
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ATTACH_LASTCHILD,
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ATTACH_FIRSTSIBLING,
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ATTACH_LASTSIBLING,
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ATTACH_BEFORE,
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ATTACH_AFTER
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} ATTACHREL;
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class CFlexTree : public CFlexWnd
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{
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friend class CFTItem;
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public:
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CFlexTree();
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~CFlexTree();
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// creation
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BOOL Create(HWND hParent, const RECT &, BOOL bVisible = TRUE, BOOL bOwnerDraw = FALSE);
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// look
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void SetScrollBarColors(COLORREF bk, COLORREF fill, COLORREF line);
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void SetDefCaptionLook(const CAPTIONLOOK &, BOOL bSel = FALSE);
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void GetDefCaptionLook(CAPTIONLOOK &, BOOL bSel = FALSE) const;
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void SetDefMargin(const RECT &);
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void GetDefMargin(RECT &) const;
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void SetRootChildIndent(int);
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int GetRootChildIndent() const;
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void SetDefChildIndent(int);
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int GetDefChildIndent() const;
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void SetBkColor(COLORREF);
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COLORREF GetBkColor() const;
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// adding default type items
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CFTItem *DefAddItem(LPCTSTR tszCaption, CFTItem *to, ATTACHREL rel = ATTACH_AFTER);
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CFTItem *DefAddItem(LPCTSTR tszCaption, ATTACHREL rel = ATTACH_AFTER);
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// freeing
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void FreeAll();
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// root access
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operator CFTItem *() const {return m_pRoot;}
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CFTItem *GetRoot() const {return m_pRoot;}
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// access
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CFTItem *GetFirstItem() const;
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CFTItem *GetLastItem() const;
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CFTItem *GetFirstVisibleItem() const;
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CFTItem *GetItemFromPoint(POINT point) const;
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// selection
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void SetCurSel(CFTItem *);
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CFTItem *GetCurSel() const;
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// finding
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CFTItem *FindItem(const GUID &guid, void *pUserData) const;
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CFTItem *FindItemEx(const GUID &guid, DWORD dwFindType, void *pVoid) const;
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protected:
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virtual BOOL OnEraseBkgnd(HDC hDC) {return TRUE;}
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virtual void OnPaint(HDC hDC);
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virtual void OnMouseOver(POINT point, WPARAM fwKeys);
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virtual void OnClick(POINT point, WPARAM fwKeys, BOOL bLeft);
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virtual void OnWheel(POINT point, WPARAM wParam);
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virtual LRESULT WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
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// event notification firing
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void FireClick(CFTItem *pItem, POINT point, WPARAM fwKeys, BOOL bLeft);
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BOOL FireOwnerDraw(CFTItem *pItem, HDC hDC);
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void FireSelChanged(CFTItem *pItem, CFTItem *pOld);
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private:
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CFTItem *m_pRoot; // root item
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CFTItem *m_pCurSel; // selected item
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CFTItem *m_pLastAdded;
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BOOL m_bOwnerDraw;
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POINT m_ptScrollOrigin;
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COLORREF m_rgbBkColor;
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CAPTIONLOOK m_clDefNormal, m_clDefSelected;
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RECT m_defmargin;
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int m_nDefChildIndent;
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// scrolling
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int m_nVertSBWidth;
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int m_nHorzSBHeight;
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BOOL m_bVertSB, m_bHorzSB;
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CFlexScrollBar m_VertSB, m_HorzSB;
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int m_nTotalWidth;
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// helpers
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BOOL m_bNeedPaintBkgnd;
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void SetDirty();
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void InternalPaint(HDC hDC);
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BOOL m_bDirty;
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void Calc();
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void CalcItems();
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BOOL IsMine(CFTItem *pItem);
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void LosePointer(CFTItem *pItem);
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};
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class CFTItem
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{
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friend class CFlexTree;
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public:
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CFTItem();
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~CFTItem();
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// operations
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BOOL IsOut() const;
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BOOL IsExpanded() const {return m_bExpanded;}
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void Expand(BOOL bAll = FALSE);
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void ExpandAll() {Expand(TRUE);}
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void Collapse(BOOL bAll = FALSE);
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void CollapseAll() {Collapse(TRUE);}
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void EnsureVisible();
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void Invalidate();
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// caption
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void SetCaptionLook(const CAPTIONLOOK &, BOOL bSel = FALSE);
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void GetCaptionLook(CAPTIONLOOK &, BOOL bSel = FALSE) const;
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void SetCaption(LPCTSTR);
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LPCTSTR GetCaption() const;
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BOOL HasCaption() const {return GetCaption() != NULL;}
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void SetMargin(const RECT &);
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void GetMargin(RECT &) const;
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// attach/detachment
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void Detach(); // detaches this leaf/branch from parent. (does not affect children, who may still be attached to this)
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void FreeChildren(); // detach and free each child (which in turn frees all their's, etc.)
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BOOL Attach(CFTItem *to, ATTACHREL rel);
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BOOL Attach(CFTItem &to, ATTACHREL rel) {return Attach(&to, rel);}
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BOOL IsOnTree() const;
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BOOL IsAttached() const;
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BOOL IsAlone() const;
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// family access
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CFlexTree *GetTree() const {return m_pTree;}
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CFTItem *GetParent() const {return m_pParent;}
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CFTItem *GetPrevSibling() const {return m_pPrev;}
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CFTItem *GetNextSibling() const {return m_pNext;}
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CFTItem *GetFirstChild() const {return m_pFirst;}
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CFTItem *GetLastChild() const {return m_pLast;}
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CFTItem *GetNextOut() const;
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CFTItem *GetNext(BOOL bOutOnly = FALSE) const;
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BOOL HasChildren() const {return m_pFirst != NULL;}
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// dimension access
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void GetItemRect(RECT &) const;
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void GetBranchRect(RECT &) const;
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// user guid/data operations
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BOOL IsUserGUID(const GUID &check) const {return IsEqualGUID(m_UserGUID, check);}
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void SetUserGUID(const GUID &set) {m_UserGUID = set;}
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const GUID &GetUserGUID() const {return m_UserGUID;}
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void SetUserData(void *p) {m_pUserData = p;}
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void *GetUserData() const {return m_pUserData;}
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// selection
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BOOL IsSelected() const;
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// owner draw
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void PaintInto(HDC hDC);
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protected:
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// internal/derived-customization operations
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void SetWidth(int);
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int GetWidth() const {return m_nWidth;}
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void SetHeight(int);
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int GetHeight() const {return m_nHeight;}
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void SetIndent(int);
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int GetIndent() const {return m_nIndent;}
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void SetChildIndent(int);
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int GetChildIndent() const {return m_nChildIndent;}
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// customization
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virtual void OnPaint(HDC hDC);
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virtual void OnMouseOver(POINT point, WPARAM fwKeys) {}
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virtual void OnClick(POINT point, WPARAM fwKeys, BOOL bLeft);
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// expansion customization
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public: virtual BOOL IsExpandable() {return GetFirstChild() != NULL;}
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protected:
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virtual void OnExpand() {}
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virtual void OnCollapse() {}
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// finding
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virtual BOOL FoundItem(DWORD dwUser, void *pUser) const {return FALSE;}
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// event notification firing
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void FireClick(POINT point, WPARAM fwKeys, BOOL bLeft);
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BOOL FireOwnerDraw(HDC hDC);
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private:
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// caption
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LPTSTR m_ptszCaption;
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CAPTIONLOOK m_clNormal, m_clSelected;
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RECT m_margin;
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// user data
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GUID m_UserGUID;
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void *m_pUserData;
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// raw characteristics
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int m_nWidth; // item's width (used only to provide horizontal scrolling as necessary)
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int m_nHeight; // item's height (not including children)
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int m_nIndent; // indent of this item relative to parent's child indent origin (full origin = this + parent origin + parent child indent)
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int m_nChildIndent; // indentation of this item's children (relative to this's origin)
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// calced characteristics
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int m_nBranchHeight; // height of item and all currently expanded children
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// calced positioning
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POINT m_origin; // relative to ideal tree origin
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// state
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BOOL m_bExpanded; // is branch expanded/children shown?
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// family
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CFlexTree *m_pTree;
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CFTItem *m_pParent, *m_pPrev, *m_pNext, *m_pFirst, *m_pLast;
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// root
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BOOL IsRoot() const;
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void SetRoot(CFlexTree *);
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// helpers
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void SetTree(CFlexTree *);
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BOOL Attach(CFTItem *pParent, CFTItem *pPrev, CFTItem *pNext);
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void SetTreeDirty(CFlexTree *pTree = NULL);
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void RecalcText();
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void Init();
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void SelChangedInternal();
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void InternalExpand(BOOL bExpand, BOOL bAll);
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};
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#endif //__FLEXTREE_H__
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