subsys/system/explorer/Seashell/SeaShellExt/Include/uidragdropctrl.h

   1 //*******************************************************************************
   2 // COPYRIGHT NOTES
   3 // ---------------
   4 // You may use this source code, compile or redistribute it as part of your application
   5 // for free. You cannot redistribute it as a part of a software development
   6 // library without the agreement of the author. If the sources are
   7 // distributed along with the application, you should leave the original
   8 // copyright notes in the source code without any changes.
   9 // This code can be used WITHOUT ANY WARRANTIES at your own risk.
  10 //
  11 // For the latest updates to this code, check this site:
  12 // http://www.masmex.com
  13 // after Sept 2000
  14 //
  15 // Copyright(C) 2000 Philip Oldaker <email: philip@masmex.com>
  16 //*******************************************************************************
  17
  18 #if !defined(AFX_DRAGDROPCTRL_H__BC21D3A2_332C_11D1_ADE9_0000E81B9EF1__INCLUDED_)
  19 #define AFX_DRAGDROPCTRL_H__BC21D3A2_332C_11D1_ADE9_0000E81B9EF1__INCLUDED_
  20
  21 #if _MSC_VER >= 1000
  22 #pragma once
  23 #endif // _MSC_VER >= 1000
  24 // DragDropCtrl.h : header file
  25 //
  26 class CDD_OleDropTargetInfo : public CObject
  27 {
  28         DECLARE_DYNAMIC(CDD_OleDropTargetInfo)
  29 public:
  30         CDD_OleDropTargetInfo(HWND hWnd,CPoint &point,COleDataObject *pDataObject);
  31         CDD_OleDropTargetInfo(HWND hWnd);
  32 // Operations
  33         void SetItem(HTREEITEM hItem);
  34         void SetItem(int nItem);
  35         void SetDropEffect(DROPEFFECT dropEffect);
  36         void SetKeyboardState(DWORD dwKeyboardState);
  37 // Attributes
  38         HWND GetSafeHwnd() const;
  39         CPoint GetPoint() const;
  40         DWORD GetKeyboardState() const;
  41         const COleDataObject *GetDataObject() const;
  42         COleDataObject *GetDataObject();
  43         HTREEITEM GetTreeItem() const;
  44         int GetListItem() const;
  45         DROPEFFECT GetDropEffect() const;
  46 protected:
  47         void InitInfo(HWND hWnd,
  48                                         const CPoint *pPoint=NULL,
  49                                         COleDataObject *pDataObject=NULL,
  50                                         DROPEFFECT dropeEffect=DROPEFFECT_NONE,
  51                                         DWORD dwKeyState=0,
  52                                         HTREEITEM hItem=NULL,
  53                                         int iItem=-1);
  54 private:
  55         HWND m_hWnd; // window mouse currently over
  56         CPoint m_point; // mouse position in client coordinates
  57         DROPEFFECT m_dropEffect; // The type of drop anticipated
  58         COleDataObject *m_pDataObject; // The OLE data that was cached at startup
  59         DWORD m_dwKeyState; // keyboard state when message was received
  60         HTREEITEM m_hDropItem; // tree item the mouse is over or currently selected (NULL if source not a tree control)
  61         int m_nDropItem; // list control item the mouse is over (-1 if source not a list control)
  62 };
  63
  64 inline CDD_OleDropTargetInfo::CDD_OleDropTargetInfo(HWND hWnd,CPoint &point,COleDataObject *pDataObject)
  65 {
  66         InitInfo(hWnd,&point,pDataObject);
  67 }
  68
  69 inline CDD_OleDropTargetInfo::CDD_OleDropTargetInfo(HWND hWnd)
  70 {
  71         InitInfo(hWnd);
  72 }
  73
  74 inline void CDD_OleDropTargetInfo::InitInfo(HWND hWnd,
  75                                                                                         const CPoint *pPoint,
  76                                                                                         COleDataObject *pDataObject,
  77                                                                                         DROPEFFECT dropEffect,
  78                                                                                         DWORD dwKeyState,
  79                                                                                         HTREEITEM hItem,
  80                                                                                         int iItem)
  81 {
  82         m_hWnd = hWnd;
  83         if (pPoint)
  84                 m_point = *pPoint;
  85         else
  86                 m_point = CPoint();
  87         m_pDataObject = pDataObject;
  88         m_dropEffect = dropEffect;
  89         m_dwKeyState = dwKeyState;
  90         m_hDropItem = hItem;
  91         m_nDropItem = iItem;
  92 }
  93
  94 inline void CDD_OleDropTargetInfo::SetItem(int nItem)
  95 {
  96         m_nDropItem = nItem;
  97 }
  98
  99 inline void CDD_OleDropTargetInfo::SetItem(HTREEITEM hItem)
 100 {
 101         m_hDropItem = hItem;
 102 }
 103
 104 inline void CDD_OleDropTargetInfo::SetDropEffect(DROPEFFECT dropEffect)
 105 {
 106         m_dropEffect = dropEffect;
 107 }
 108
 109 inline void CDD_OleDropTargetInfo::SetKeyboardState(DWORD dwKeyboardState)
 110 {
 111         m_dwKeyState = dwKeyboardState;
 112 }
 113
 114 inline DROPEFFECT CDD_OleDropTargetInfo::GetDropEffect() const
 115 {
 116         return m_dropEffect;
 117 }
 118
 119 inline HWND CDD_OleDropTargetInfo::GetSafeHwnd() const
 120 {
 121         return m_hWnd;
 122 }
 123
 124 inline CPoint CDD_OleDropTargetInfo::GetPoint() const
 125 {
 126         return m_point;
 127 }
 128
 129 inline DWORD CDD_OleDropTargetInfo::GetKeyboardState() const
 130 {
 131         return m_dwKeyState;
 132 }
 133
 134 inline const COleDataObject *CDD_OleDropTargetInfo::GetDataObject() const
 135 {
 136         return m_pDataObject;
 137 }
 138
 139 inline COleDataObject *CDD_OleDropTargetInfo::GetDataObject()
 140 {
 141         return m_pDataObject;
 142 }
 143
 144 inline HTREEITEM CDD_OleDropTargetInfo::GetTreeItem() const
 145 {
 146         return m_hDropItem;
 147 }
 148
 149 inline int CDD_OleDropTargetInfo::GetListItem() const
 150 {
 151         return m_nDropItem;
 152 }
 153
 154 /////////////////////////////////////////////////////////////////////////////
 155 // CDragDropCtrl window
 156
 157 class CTRL_EXT_CLASS CDragDropCtrl : public COleDropTarget
 158 {
 159 // Construction
 160 public:
 161         CDragDropCtrl();
 162
 163 // Attributes
 164 public:
 165
 166 // Operations
 167 public:
 168
 169 // Overrides
 170         virtual DROPEFFECT OnDragEnter( CWnd* pWnd, COleDataObject* pDataObject, DWORD dwKeyState, CPoint point );
 171         virtual DROPEFFECT OnDragOver( CWnd* pWnd, COleDataObject* pDataObject, DWORD dwKeyState, CPoint point );
 172         virtual BOOL OnDrop( CWnd* pWnd, COleDataObject* pDataObject, DROPEFFECT dropEffect, CPoint point );
 173         virtual void OnDragLeave( CWnd* pWnd);
 174
 175 // Implementation
 176 public:
 177         virtual ~CDragDropCtrl();
 178
 179 private:
 180         DWORD m_dwKeyboardState;
 181         DWORD m_dwEnterKeyboardState;
 182 };
 183
 184 /////////////////////////////////////////////////////////////////////////////
 185
 186 //{{AFX_INSERT_LOCATION}}
 187 // Microsoft Developer Studio will insert additional declarations immediately before the previous line.
 188
 189 #endif // !defined(AFX_DRAGDROPCTRL_H__BC21D3A2_332C_11D1_ADE9_0000E81B9EF1__INCLUDED_)