controls/treeview.c

   1 /*
   2  * Treeview control
   3  *
   4  * Copyright 1998 Eric Kohl
   5  *
   6  * NOTES
   7  *   This is just a dummy control. An author is needed! Any volunteers?
   8  *   I will only improve this control once in a while.
   9  *     Eric <ekohl@abo.rhein-zeitung.de>
  10  *
  11  * TODO:
  12  *   - All messages.
  13  *   - All notifications.
  14  */
  15
  16 #include "windows.h"
  17 #include "commctrl.h"
  18 #include "treeview.h"
  19 #include "heap.h"
  20 #include "win.h"
  21 #include "debug.h"
  22
  23
  24 #define TREEVIEW_GetInfoPtr(wndPtr) ((TREEVIEW_INFO *)wndPtr->wExtra[0])
  25
  26
  27
  28 static LRESULT
  29 TREEVIEW_SetImageList (WND *wndPtr, WPARAM32 wParam, LPARAM lParam)
  30 {
  31     TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(wndPtr);
  32     HIMAGELIST himlTemp;
  33
  34     if ((INT32)wParam == TVSIL_NORMAL) {
  35         himlTemp = infoPtr->himlNormal;
  36         infoPtr->himlNormal = (HIMAGELIST)lParam;
  37     }
  38     else if ((INT32)wParam == TVSIL_STATE) {
  39         himlTemp = infoPtr->himlState;
  40         infoPtr->himlState = (HIMAGELIST)lParam;
  41     }
  42     else
  43         return NULL;
  44
  45     return (LRESULT)himlTemp;
  46 }
  47
  48
  49
  50 static LRESULT
  51 TREEVIEW_Create (WND *wndPtr, WPARAM32 wParam, LPARAM lParam)
  52 {
  53     TREEVIEW_INFO *infoPtr;
  54
  55     /* allocate memory for info structure */
  56     infoPtr = (TREEVIEW_INFO *)HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY,
  57                                    sizeof(TREEVIEW_INFO));
  58     wndPtr->wExtra[0] = (DWORD)infoPtr;
  59
  60     if (infoPtr == NULL) {
  61         ERR (treeview, "could not allocate info memory!\n");
  62         return 0;
  63     }
  64
  65     if ((TREEVIEW_INFO*)wndPtr->wExtra[0] != infoPtr) {
  66         ERR (treeview, "pointer assignment error!\n");
  67         return 0;
  68     }
  69
  70     /* set default settings */
  71     infoPtr->clrBk = GetSysColor32 (COLOR_WINDOW);
  72     infoPtr->clrText = GetSysColor32 (COLOR_BTNTEXT);
  73     infoPtr->himlNormal = NULL;
  74     infoPtr->himlState = NULL;
  75
  76
  77     return 0;
  78 }
  79
  80
  81 static LRESULT
  82 TREEVIEW_Destroy (WND *wndPtr, WPARAM32 wParam, LPARAM lParam)
  83 {
  84     TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(wndPtr);
  85
  86
  87
  88
  89     /* free tree view info data */
  90     HeapFree (GetProcessHeap (), 0, infoPtr);
  91
  92     return 0;
  93 }
  94
  95
  96 static LRESULT
  97 TREEVIEW_EraseBackground (WND *wndPtr, WPARAM32 wParam, LPARAM lParam)
  98 {
  99     TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(wndPtr);
 100     HBRUSH32 hBrush = CreateSolidBrush32 (infoPtr->clrBk);
 101     RECT32 rect;
 102
 103     GetClientRect32 (wndPtr->hwndSelf, &rect);
 104     FillRect32 ((HDC32)wParam, &rect, hBrush);
 105     DeleteObject32 (hBrush);
 106     return TRUE;
 107 }
 108
 109
 110
 111 LRESULT WINAPI
 112 TreeviewWindowProc (HWND32 hwnd, UINT32 uMsg, WPARAM32 wParam, LPARAM lParam)
 113 {
 114     WND *wndPtr = WIN_FindWndPtr(hwnd);
 115
 116     switch (uMsg)
 117     {
 118
 119
 120 //      case TVM_GETIMAGELIST:
 121 //          return TREEVIEW_GetImageList (wndPtr, wParam, lParam);
 122
 123
 124
 125         case TVM_SETIMAGELIST:
 126             return TREEVIEW_SetImageList (wndPtr, wParam, lParam);
 127
 128
 129
 130         case WM_CREATE:
 131             return TREEVIEW_Create (wndPtr, wParam, lParam);
 132
 133         case WM_DESTROY:
 134             return TREEVIEW_Destroy (wndPtr, wParam, lParam);
 135
 136 //      case EM_ENABLE:
 137
 138         case WM_ERASEBKGND:
 139             return TREEVIEW_EraseBackground (wndPtr, wParam, lParam);
 140
 141         case WM_GETDLGCODE:
 142             return DLGC_WANTARROWS | DLGC_WANTCHARS;
 143
 144
 145 //      case WM_PAINT:
 146 //          return TREEVIEW_Paint (wndPtr, wParam);
 147
 148 //      case WM_SETFONT:
 149
 150 //      case WM_TIMER:
 151
 152 //      case WM_VSCROLL:
 153
 154         default:
 155             if (uMsg >= WM_USER)
 156                 ERR (treeview, "unknown msg %04x wp=%08x lp=%08lx\n",
 157                      uMsg, wParam, lParam);
 158             return DefWindowProc32A (hwnd, uMsg, wParam, lParam);
 159     }
 160     return 0;
 161 }
 162
 163
 164 void
 165 TREEVIEW_Register (void)
 166 {
 167     WNDCLASS32A wndClass;
 168
 169     if (GlobalFindAtom32A (WC_TREEVIEW32A)) return;
 170
 171     ZeroMemory (&wndClass, sizeof(WNDCLASS32A));
 172     wndClass.style         = CS_GLOBALCLASS | CS_DBLCLKS;
 173     wndClass.lpfnWndProc   = (WNDPROC32)TreeviewWindowProc;
 174     wndClass.cbClsExtra    = 0;
 175     wndClass.cbWndExtra    = sizeof(TREEVIEW_INFO *);
 176     wndClass.hCursor       = LoadCursor32A (0, IDC_ARROW32A);
 177     wndClass.hbrBackground = 0;
 178     wndClass.lpszClassName = WC_TREEVIEW32A;
 179
 180     RegisterClass32A (&wndClass);
 181 }
 182