278 lines
8.3 KiB
C
278 lines
8.3 KiB
C
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// BUGBUG: this code is not used anymore!
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#include "shellprv.h"
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#include "listview.h"
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// Internal STREAM entry points
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BOOL Stream_WriteString(STREAM FAR* pstm, LPCTSTR psz);
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LPTSTR Stream_ReadString(STREAM FAR* pstm);
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UINT Stream_ReadStringBuffer(STREAM FAR* pstm, LPTSTR psz, UINT cb);
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// Read or write a ListView to a stream. flags indicate what aspects /* ;Internal */
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// of the listview to write out. If aspects of a ListView state are /* ;Internal */
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// not written, default values will be used when read back in. /* ;Internal */
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// /* ;Internal */
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#define LVRW_ICONS 0x0001 /* ;Internal */
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#define LVRW_SMALLICONS 0x0002 /* ;Internal */
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#define LVRW_FONT 0x0004 /* ;Internal */
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#define LVRW_LPARAMS 0x0008 /* ;Internal */
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#define LVRW_COLINFO 0x0010 /* ;Internal */
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#define LVRW_ENUMORDER 0x0020 /* ;Internal */
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/* ;Internal */
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// BOOL ListView_Write(HWND hwndLV, STREAM FAR* pstm, UINT flags); /* ;Internal */
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#define LVM_WRITE (LVM_FIRST + 31) /* ;Internal */
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#define ListView_Write(hwndLV, pstm, flags) /* ;Internal */ \
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(BOOL)SendMessage((hwndLV), LVM_WRITE, /* ;Internal */ \
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(WPARAM)(BOOL)(flags), /* ;Internal */ \
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(LPARAM)(STREAM FAR*)(pstm)) /* ;Internal */
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/* ;Internal */
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typedef struct _LV_READINFO /* ;Internal */
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{ /* ;Internal */
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UINT flags; /* ;Internal */
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HINSTANCE hinst; /* ;Internal */
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HWND hwndParent; /* ;Internal */
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} LV_READINFO; /* ;Internal */
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/* ;Internal */
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// HWND ListView_Read(STREAM FAR* pstm, LV_READINFO FAR* pinfo); /* ;Internal */
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// BUGBUG This can't be a message! How do we want this to work? /* ;Internal */
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#define LVM_READ (LVM_FIRST + 32) /* ;Internal */
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#define ListView_Read(plv, pinfo) /* ;Internal */
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/* ;Internal */
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#define LV_MAGIC (TEXT('L') | (TEXT('V') << (8 * sizeof(TCHAR))))
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typedef struct _LV_STREAMHDR
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{
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UINT magic;
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UINT flags;
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UINT style;
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UINT id;
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POINT ptOrigin;
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COLORREF clrBk;
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int cItem;
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} LV_STREAMHDR;
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typedef struct _LV_ITEMHDR
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{
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POINT pt;
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UINT state;
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int iImage;
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int iZOrder;
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} LV_ITEMHDR;
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BOOL NEAR ListView_OnWrite(LV* plv, STREAM FAR* pstm, UINT flags)
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{
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int i;
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LV_STREAMHDR hdr;
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hdr.magic = LV_MAGIC;
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hdr.flags = flags;
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hdr.style = plv->style;
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hdr.id = GetWindowID(plv->hwnd);
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hdr.ptOrigin = plv->ptOrigin;
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hdr.clrBk = plv->clrBk;
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hdr.cItem = ListView_Count(plv);
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if (!Stream_Write(pstm, &hdr, sizeof(hdr)))
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return FALSE;
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for (i = 0; i < hdr.cItem; i++)
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{
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LV_ITEMHDR ihdr;
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LISTITEM FAR* pitem = ListView_FastGetItemPtr(plv, i);
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ihdr.pt.x = pitem->pt.x;
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ihdr.pt.y = pitem->pt.y;
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ihdr.state = pitem->state;
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ihdr.iImage = pitem->iImage;
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ihdr.iZOrder = ListView_ZOrderIndex(plv, i);
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if (!Stream_Write(pstm, &ihdr, sizeof(ihdr)))
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return FALSE;
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if (flags & LVRW_LPARAMS)
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{
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if (!Stream_Write(pstm, &pitem->lParam, sizeof(pitem->lParam)))
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return FALSE;
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}
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if (!Stream_WriteString(pstm, pitem->pszText))
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return FALSE;
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}
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if (flags & LVRW_FONT)
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{
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// REVIEW: Need to optionally write out log font...
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}
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if (flags & LVRW_ICONS)
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{
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if (!ImageList_Write(plv->himl, pstm))
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return FALSE;
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}
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if (flags & LVRW_SMALLICONS)
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{
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if (!ImageList_Write(plv->himlSmall, pstm))
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return FALSE;
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}
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if (!Stream_Flush(pstm))
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return FALSE;
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return TRUE;
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}
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HWND NEAR ListView_OnRead(STREAM FAR* pstm, LV_READINFO FAR* pinfo)
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{
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HWND hwndLV;
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int i;
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LV* plv;
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LV_STREAMHDR hdr;
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BOOL fSuccess;
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UINT flags = pinfo->flags;
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fSuccess = FALSE;
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hwndLV = NULL;
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if (!Stream_Read(pstm, &hdr, sizeof(hdr)))
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return FALSE;
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if (hdr.magic != LV_MAGIC || hdr.flags != flags)
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return FALSE;
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// REVIEW: Could create window always with LVS_SHAREIMAGELISTS
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// so we don't have to destroy and recreate the imagelists
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// later. Probably only a negligible speed savings, though.
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//
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hwndLV = CreateWindowEx(
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0L, // extendedStyle
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c_szListViewClass, // class name
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NULL, // text
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WS_CHILD | (DWORD)hdr.style,
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0, 0, 0, 0, // x, y, cx, cy
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pinfo->hwndParent, // hwndParent
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(HMENU)hdr.id, // child window id
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pinfo->hinst, // hInstance
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NULL);
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if (!hwndLV)
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return FALSE;
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plv = ListView_GetPtr(hwndLV);
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if (!plv)
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goto Error;
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plv->ptOrigin = hdr.ptOrigin;
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plv->clrBk = hdr.clrBk;
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// Grow the Z-order array to cItem items...
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//
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for (i = 0; i < hdr.cItem; i++)
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{
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// Add a non-NULL item so we can test return value
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// of ReplaceItem() later...
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//
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if (DPA_InsertPtr(plv->hdpaZOrder, i, (void FAR*)1) == -1)
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goto Error;
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}
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for (i = 0; i < hdr.cItem; i++)
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{
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int i2;
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LV_ITEMHDR ihdr;
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LV_ITEM item;
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LISTITEM FAR* pitem;
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LPTSTR pszText;
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if (!Stream_Read(pstm, &ihdr, sizeof(ihdr)))
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goto Error;
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item.mask = LVIF_ALL;
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item.pszText = NULL;
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item.state = 0;
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item.iImage = ihdr.iImage;
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item.lParam = 0L;
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pitem = ListView_CreateItem(plv, &item);
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if (!pitem)
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goto Error;
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if (flags & LVRW_LPARAMS)
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{
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if (!Stream_Read(pstm, &pitem->lParam, sizeof(pitem->lParam)))
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goto Error;
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}
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pszText = Stream_ReadString(pstm);
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if (!pszText)
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{
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ListView_FreeItem(plv, pitem);
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goto Error;
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}
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pitem->pt.y = (short)ihdr.pt.y;
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pitem->pt.x = (short)ihdr.pt.x;
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pitem->state = ihdr.state;
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pitem->pszText = pszText;
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// If sorted, then insert sorted.
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//
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i2 = i;
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if (plv->style & (LVS_SORTASCENDING | LVS_SORTDESCENDING))
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i2 = ListView_LookupString(plv, pszText, LVFI_SUBSTRING | LVFI_NEARESTXY, 0);
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if (DPA_InsertPtr(plv->hdpa, i2, (void FAR*)pitem) == -1)
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{
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ListView_FreeItem(plv, pitem);
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goto Error;
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}
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// Now set the Z order.
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//
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if (!DPA_SetPtr(plv->hdpaZOrder, ihdr.iZOrder, (void FAR*)i2))
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goto Error;
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}
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if (flags & LVRW_FONT)
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{
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// REVIEW: Need to read & setfont
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}
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if (flags & LVRW_ICONS)
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{
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ImageList_Destroy(plv->himl);
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plv->himl = ImageList_Read(pstm);
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if (!plv->himl)
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goto Error;
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}
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if (flags & LVRW_SMALLICONS)
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{
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ImageList_Destroy(plv->himlSmall);
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plv->himlSmall = ImageList_Read(pstm);
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if (!plv->himlSmall)
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goto Error;
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}
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plv->rcView.left = RECOMPUTE;
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// Instead of sending out a zillion creates (one for each item we just
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// created), just destroy and re-create ourselves.
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ListView_NotifyRecreate(plv);
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fSuccess = TRUE;
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Error:
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if (!fSuccess && hwndLV)
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{
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DestroyWindow(hwndLV);
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hwndLV = NULL;
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}
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return hwndLV;
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}
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