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758 lines
23 KiB
758 lines
23 KiB
/****************************************************************************/
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/* */
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/* WFTREE.C - */
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/* */
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/* Windows File System Tree Window Proc Routines */
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/* */
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/****************************************************************************/
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#include "winfile.h"
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#include "winnet.h"
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#include "lfn.h"
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#include "wfcopy.h"
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HICON GetTreeIcon(HWND hWnd);
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VOID APIENTRY CheckEscapes(LPSTR);
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HICON
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GetTreeIcon(
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HWND hWnd
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)
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{
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HWND hwndTree, hwndDir;
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hwndTree = HasTreeWindow(hWnd);
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hwndDir = HasDirWindow(hWnd);
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if (hwndTree && hwndDir)
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return hicoTreeDir;
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else if (hwndTree)
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return hicoTree;
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else
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return hicoDir;
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}
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VOID
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APIENTRY
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GetTreeWindows(
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HWND hwnd,
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PHWND phwndTree,
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PHWND phwndDir,
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PHWND phwndDrives
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)
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{
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if (phwndTree) {
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*phwndTree = GetDlgItem(hwnd, IDCW_TREECONTROL);
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}
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if (phwndDir) {
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*phwndDir = GetDlgItem(hwnd, IDCW_DIR);
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}
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if (phwndDrives) {
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*phwndDrives = GetDlgItem(hwnd, IDCW_DRIVES);
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}
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}
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// returns hwndTree, hwndDir or hwndDrives depending on the focus tracking
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// for the window. if none is found we return NULL
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HWND
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APIENTRY
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GetTreeFocus(
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HWND hwndTree
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)
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{
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HWND hwnd, hwndLast = NULL;
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hwndLast = hwnd = (HWND)GetWindowLongPtr(hwndTree, GWLP_LASTFOCUS);
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while (hwnd && hwnd != hwndTree) {
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hwndLast = hwnd;
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hwnd = GetParent(hwnd);
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}
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return hwndLast;
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}
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/*--------------------------------------------------------------------------*/
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/* */
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/* CompactPath() - */
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/* */
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/*--------------------------------------------------------------------------*/
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BOOL
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APIENTRY
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CompactPath(
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HDC hDC,
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LPSTR lpszPath,
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WORD dx
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)
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{
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register INT len;
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INT dxFixed, dxT;
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LPSTR lpEnd; /* end of the unfixed string */
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LPSTR lpFixed; /* start of text that we always display */
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BOOL bEllipsesIn;
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CHAR szTemp[MAXPATHLEN];
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/* Does it already fit? */
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MGetTextExtent(hDC, lpszPath, lstrlen(lpszPath), &dxFixed, NULL);
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if (dxFixed <= (INT)dx)
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return(TRUE);
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/* Search backwards for the '\', and man, it better be there! */
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lpFixed = lpszPath + lstrlen(lpszPath);
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while (*lpFixed != '\\')
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lpFixed = AnsiPrev(lpszPath, lpFixed);
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/* Save this guy to prevent overlap. */
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lstrcpy(szTemp, lpFixed);
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lpEnd = lpFixed;
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bEllipsesIn = FALSE;
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MGetTextExtent(hDC, lpFixed, lstrlen(lpFixed), &dxFixed, NULL);
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while (TRUE) {
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MGetTextExtent(hDC, lpszPath, (int)(lpEnd - lpszPath), &dxT, NULL);
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len = dxFixed + dxT;
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if (bEllipsesIn)
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len += dxEllipses;
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if (len <= (INT)dx)
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break;
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bEllipsesIn = TRUE;
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if (lpEnd <= lpszPath) {
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/* Things didn't fit. */
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lstrcpy(lpszPath, szEllipses);
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lstrcat(lpszPath, szTemp);
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return(FALSE);
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}
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/* Step back a character. */
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lpEnd = AnsiPrev(lpszPath, lpEnd);
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}
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if (bEllipsesIn) {
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lstrcpy(lpEnd, szEllipses);
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lstrcat(lpEnd, szTemp);
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}
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return(TRUE);
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}
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//
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// BOOL APIENTRY ResizeSplit(HWND hWnd, int dxSplit)
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//
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// creates/resizes children of the MDI child for the given path or resizes
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// (perhaps creating and destroying) these guys based on the dxSplit
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// parameter
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//
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// in:
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// hWnd window to fiddle with
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// dxSpit location of split between tree and dir panes
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// if less than size limit no tree is created
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// (current is destroyed)
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// if past limit on right margin the dir window
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// is destroyed (or not created)
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//
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// returns:
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// TRUE success, windows created
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// FALSE failure, windows failed creation, out of mem, or
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// the tree was in a state the couldn't be resized
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//
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BOOL
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APIENTRY
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ResizeSplit(
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HWND hWnd,
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INT dxSplit
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)
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{
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RECT rc;
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HWND hwndTree, hwndDir, hwndDrives, hwndLB;
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DWORD dwTemp;
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GetTreeWindows(hWnd, &hwndTree, &hwndDir, &hwndDrives);
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if (hwndTree && GetWindowLong(hwndTree, GWL_READLEVEL))
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return FALSE;
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GetClientRect(hWnd, &rc);
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// create the drives
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if (!hwndDrives) {
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// make new drives window
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hwndDrives = CreateWindowEx(0, szDrivesClass, NULL,
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WS_CHILD | WS_VISIBLE,
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0, 0, 0, 0,
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hWnd, (HMENU)IDCW_DRIVES,
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hAppInstance, NULL);
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if (!hwndDrives)
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return FALSE;
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}
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if (dxSplit > dxDriveBitmap * 2) {
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if (!hwndTree) { // make new tree window
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hwndTree = CreateWindowEx(0, szTreeControlClass,
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NULL, WS_CHILD | WS_VISIBLE,
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0, 0, 0, 0, hWnd, (HMENU)IDCW_TREECONTROL,
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hAppInstance, NULL);
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if (!hwndTree)
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return FALSE;
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// only reset this if the dir window already
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// exists, that is we are creating the tree
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// by splitting open a dir window
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if (hwndDir)
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SendMessage(hwndTree, TC_SETDRIVE, MAKEWORD(FALSE, 0), 0L);
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}
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} else if (hwndTree) { // we are closing the tree window
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// If the directory window is empty, then set the focus to the
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// drives window.
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if (hwndDir) {
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hwndLB = GetDlgItem (hwndDir,IDCW_LISTBOX);
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if (hwndLB) {
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SendMessage (hwndLB,LB_GETTEXT,0,(LPARAM)(LPSTR) &dwTemp);
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if (!dwTemp)
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SetFocus (hwndDrives);
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}
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}
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DestroyWindow(hwndTree);
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dxSplit = 0;
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}
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if ((rc.right - dxSplit) > dxDriveBitmap * 2) {
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if (!hwndDir) {
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hwndDir = CreateWindowEx(0, szDirClass, NULL,
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WS_CHILD | WS_VISIBLE,
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0, 0, 0, 0,
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hWnd,(HMENU)IDCW_DIR,
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hAppInstance, NULL);
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if (!hwndDir)
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return FALSE;
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}
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} else if (hwndDir) {
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DestroyWindow(hwndDir);
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dxSplit = rc.right;
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}
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UpdateStatus(hWnd);
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SetWindowLong(hWnd, GWL_SPLIT, dxSplit);
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return TRUE;
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}
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/*--------------------------------------------------------------------------*/
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/* */
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/* TreeWndProc() - */
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/* */
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/*--------------------------------------------------------------------------*/
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/* WndProc for the MDI child window containing the drives, volume, and
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* directory tree child windows.
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*/
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INT_PTR
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APIENTRY
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TreeWndProc(
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HWND hWnd,
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UINT wMsg,
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WPARAM wParam,
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LPARAM lParam
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)
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{
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HWND hwndTree, hwndDir, hwndDrives, hwndFocus;
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CHAR szDir[MAXPATHLEN];
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RECT rc;
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HDC hdc;
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STKCHK();
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switch (wMsg) {
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case WM_FILESYSCHANGE:
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MSG("TreeWndProc", "WM_FILESYSCHANGE");
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if (hwndDir = HasDirWindow(hWnd))
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SendMessage(hwndDir, wMsg, wParam, lParam);
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break;
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case FS_CHANGEDRIVES:
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MSG("TreeWndProc", "FS_CHANGEDRIVES");
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{
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INT iNewDrive;
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if (!(hwndDrives = GetDlgItem(hWnd, IDCW_DRIVES)))
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break;
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DestroyWindow(hwndDrives);
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// see if this drive has gone, if so set this to the
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// last drive in the list
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iNewDrive = -1;
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if (!IsValidDisk((INT)GetWindowLong(hWnd, GWL_TYPE))) {
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iNewDrive = rgiDrive[cDrives - 1];
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SetWindowLong(hWnd, GWL_TYPE, iNewDrive);
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}
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hwndDrives = CreateWindowEx(0, szDrivesClass, NULL,
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WS_CHILD | WS_VISIBLE,
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0, 0, 0, 0,
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hWnd, (HMENU)IDCW_DRIVES,
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hAppInstance,
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NULL);
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if (!hwndDrives)
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return -1L;
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// Don't show the new stuff if the tree window is iconic
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if (IsIconic(hWnd))
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break;
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/* HACK! Send SIZENOMDICRAP in the wParam of the size message.
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* This will re-compute the sizes of all three areas of
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* the tree window (in case the drive section grows or
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* shrinks) and not pass it the size message on to the
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* DefMDIChildProc() */
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GetClientRect(hWnd, &rc);
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SendMessage(hWnd, WM_SIZE, SIZENOMDICRAP, MAKELONG(rc.right, rc.bottom));
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// refresh the tree if necessary
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if (iNewDrive >= 0) {
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GetSelectedDirectory((WORD)(iNewDrive+1), szDir);
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SendMessage(GetDlgItem(hWnd, IDCW_TREECONTROL),
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TC_SETDRIVE, MAKEWORD(FALSE, 0), (LPARAM)szDir);
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}
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break;
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}
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case FS_GETSELECTION:
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{
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#define pfDir (BOOL *)lParam
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LPSTR p;
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MSG("TreeWndProc", "FS_GETSELECTION");
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GetTreeWindows(hWnd, &hwndTree, &hwndDir, &hwndDrives);
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hwndFocus = GetTreeFocus(hWnd);
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if (hwndFocus == hwndDir || !hwndTree) {
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return SendMessage(hwndDir, FS_GETSELECTION, wParam, lParam);
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} else {
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p = (LPSTR)LocalAlloc(LPTR, MAXPATHLEN);
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if (p) {
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SendMessage(hWnd, FS_GETDIRECTORY, MAXPATHLEN, (LPARAM)p);
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StripBackslash(p);
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CheckEscapes(p);
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if (wParam == 2) { // BUG ??? wParam should be fMostRecentOnly
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if (pfDir) {
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*pfDir = IsLFN(p);
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}
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LocalFree((HANDLE)p);
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return (INT_PTR)p;
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}
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}
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if (pfDir) {
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*pfDir = TRUE;
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}
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return (INT_PTR)p;
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}
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#undef pfDir
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}
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case FS_GETDIRECTORY:
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MSG("TreeWndProc", "FS_GETDIRECTORY");
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// wParam is the length of the string pointed to by lParam
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// returns in lParam ANSI directory string with
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// a trailing backslash. if you want to do a SetCurrentDirecotor()
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// you must first StripBackslash() the thing!
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GetMDIWindowText(hWnd, (LPSTR)lParam, (INT)wParam); // get the string
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StripFilespec((LPSTR)lParam); // Remove the trailing extention
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AddBackslash((LPSTR)lParam); // terminate with a backslash
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break;
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case FS_GETFILESPEC:
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MSG("TreeWndProc", "FS_GETFILESPEC");
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// returns the current filespec (from View.Include...). this is
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// an uppercase ANSI string
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GetMDIWindowText(hWnd, (LPSTR)lParam, (INT)wParam);
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StripPath((LPSTR)lParam);
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break;
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// redirect these messages to the drive icons to get the same result as
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// dropping on the active drive.
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// this is especially useful when we are minimized
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case WM_DRAGSELECT:
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case WM_QUERYDROPOBJECT:
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case WM_DROPOBJECT:
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MSG("TreeWndProc", "WM..OBJECT");
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// Do nothing
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return(TRUE);
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if (hwndDrives = HasDrivesWindow(hWnd)) {
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return SendMessage(hwndDrives, wMsg, wParam, lParam);
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}
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if (hwndDir = HasDirWindow(hWnd)) {
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return SendMessage(hwndDir, wMsg, wParam, lParam);
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}
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break;
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case FS_GETDRIVE:
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MSG("TreeWndProc", "FS_GETDRIVE");
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GetTreeWindows(hWnd, &hwndTree, &hwndDir, NULL);
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if (hwndTree)
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return SendMessage(hwndTree, wMsg, wParam, lParam);
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else
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return SendMessage(hwndDir, wMsg, wParam, lParam);
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break;
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case WM_CREATE:
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TRACE(BF_WM_CREATE, "TreeWndProc - WM_CREATE");
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{
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INT dxSplit;
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WORD wDrive;
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// lpcs->lpszName is the path we are opening the
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// window for (has extension stuff "*.*")
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#define lpcs ((LPCREATESTRUCT)lParam)
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#define lpmdics ((LPMDICREATESTRUCT)(lpcs->lpCreateParams))
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wDrive = lpcs->lpszName[0];
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if (wDrive >= 'a')
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wDrive -= 'a';
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else
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wDrive -= 'A';
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SetWindowLong(hWnd, GWL_TYPE, wDrive);
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dxSplit = (SHORT)LOWORD(lpmdics->lParam);
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// if dxSplit is negative we split in the middle
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if (dxSplit < 0)
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dxSplit = lpcs->cx / 2;
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SetWindowLong(hWnd, GWL_SPLIT, dxSplit);
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SetWindowLongPtr(hWnd, GWLP_LASTFOCUS, 0);
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SetWindowLong(hWnd, GWL_FSCFLAG, FALSE);
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if (!ResizeSplit(hWnd, dxSplit))
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return -1;
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GetTreeWindows(hWnd, &hwndTree, &hwndDir, NULL);
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SetWindowLongPtr(hWnd, GWLP_LASTFOCUS, (LONG_PTR)(hwndTree ? hwndTree : hwndDir));
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break;
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}
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case WM_CLOSE:
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MSG("TreeWndProc", "WM_CLOSE");
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// don't allow the last MDI child to be closed!
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if (hwndTree = HasTreeWindow(hWnd)) {
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// don't close if we are reading the tree
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if (GetWindowLong(hwndTree, GWL_READLEVEL))
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break;
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}
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// don't leve current dir on floppies
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GetSystemDirectory(szDir, sizeof(szDir));
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SheSetCurDrive(DRIVEID(szDir));
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if (!IsLastWindow())
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goto DEF_MDI_PROC; // this will close this window
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break;
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case WM_MDIACTIVATE:
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MSG("TreeWndProc", "WM_MDIACTIVATE");
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if (GET_WM_MDIACTIVATE_FACTIVATE(hWnd, wParam, lParam)) { // we are receiving the activation
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lFreeSpace = -1L;
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UpdateStatus(hWnd);
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hwndFocus = (HWND)GetWindowLongPtr(hWnd, GWLP_LASTFOCUS);
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SetFocus(hwndFocus);
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} else if (hwndDrives = HasDrivesWindow(hWnd))
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SendMessage(hwndDrives,wMsg,wParam,lParam);
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break;
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case WM_SETFOCUS:
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MSG("TreeWndProc", "WM_SETFOCUS");
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hwndFocus = (HWND)GetWindowLongPtr(hWnd, GWLP_LASTFOCUS);
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SetFocus(hwndFocus);
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break;
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case WM_INITMENUPOPUP:
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MSG("TreeWndProc", "WM_INITMENUPOPUP");
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if (HIWORD(lParam)) {
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EnableMenuItem((HMENU)wParam, SC_CLOSE,
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IsLastWindow() ? MF_BYCOMMAND | MF_DISABLED | MF_GRAYED :
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MF_ENABLED);
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}
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break;
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case WM_SYSCOMMAND:
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MSG("TreeWndProc", "WM_SYSCOMMAND");
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if (wParam != SC_SPLIT)
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goto DEF_MDI_PROC;
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GetClientRect(hWnd, &rc);
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lParam = MAKELONG(rc.right / 2, 0);
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// fall through
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case WM_LBUTTONDOWN:
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MSG("TreeWndProc", "WM_LBUTTONDOWN");
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{
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MSG msg;
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INT x, y, dx, dy;
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if (IsIconic(hWnd))
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break;
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|
|
if (hwndDrives = GetDlgItem(hWnd, IDCW_DRIVES)) {
|
|
GetClientRect(hwndDrives, &rc);
|
|
y = rc.bottom;
|
|
} else {
|
|
y = 0;
|
|
}
|
|
|
|
x = LOWORD(lParam);
|
|
|
|
GetClientRect(hWnd, &rc);
|
|
|
|
dx = 4;
|
|
dy = rc.bottom - y; // the height of the client less the drives window
|
|
|
|
hdc = GetDC(hWnd);
|
|
|
|
// split bar loop
|
|
|
|
PatBlt(hdc, x - dx / 2, y, dx, dy, PATINVERT);
|
|
|
|
SetCapture(hWnd);
|
|
|
|
while (GetMessage(&msg, NULL, 0, 0)) {
|
|
|
|
if (msg.message == WM_KEYDOWN || msg.message == WM_SYSKEYDOWN ||
|
|
(msg.message >= WM_MOUSEFIRST && msg.message <= WM_MOUSELAST)) {
|
|
|
|
if (msg.message == WM_LBUTTONUP || msg.message == WM_LBUTTONDOWN)
|
|
break;
|
|
|
|
if (msg.message == WM_KEYDOWN) {
|
|
|
|
if (msg.wParam == VK_LEFT) {
|
|
msg.message = WM_MOUSEMOVE;
|
|
msg.pt.x -= 2;
|
|
} else if (msg.wParam == VK_RIGHT) {
|
|
msg.message = WM_MOUSEMOVE;
|
|
msg.pt.x += 2;
|
|
} else if (msg.wParam == VK_RETURN ||
|
|
msg.wParam == VK_ESCAPE) {
|
|
break;
|
|
}
|
|
|
|
SetCursorPos(msg.pt.x, msg.pt.y);
|
|
}
|
|
|
|
if (msg.message == WM_MOUSEMOVE) {
|
|
|
|
// erase old
|
|
|
|
PatBlt(hdc, x - dx / 2, y, dx, dy, PATINVERT);
|
|
ScreenToClient(hWnd, &msg.pt);
|
|
x = msg.pt.x;
|
|
|
|
// put down new
|
|
|
|
PatBlt(hdc, x - dx / 2, y, dx, dy, PATINVERT);
|
|
}
|
|
} else {
|
|
DispatchMessage(&msg);
|
|
}
|
|
}
|
|
ReleaseCapture();
|
|
|
|
// erase old
|
|
|
|
PatBlt(hdc, x - dx / 2, y, dx, dy, PATINVERT);
|
|
ReleaseDC(hWnd, hdc);
|
|
|
|
if (msg.wParam != VK_ESCAPE) {
|
|
if (ResizeSplit(hWnd, x))
|
|
SendMessage(hWnd, WM_SIZE, SIZENOMDICRAP, MAKELONG(rc.right, rc.bottom));
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case WM_QUERYDRAGICON:
|
|
MSG("TreeWndProc", "WM_QUERYDRAGICON");
|
|
return (INT_PTR)GetTreeIcon(hWnd);
|
|
break;
|
|
|
|
case WM_ERASEBKGND:
|
|
MSG("TreeWndProc", "WM_ERASEBKGND");
|
|
|
|
if (IsIconic(hWnd)) {
|
|
// this paints the background of the icon properly, doing
|
|
// brush allignment and other nasty stuff
|
|
|
|
DefWindowProc(hWnd, WM_ICONERASEBKGND, wParam, 0L);
|
|
} else {
|
|
goto DEF_MDI_PROC;
|
|
}
|
|
break;
|
|
|
|
case WM_PAINT:
|
|
MSG("TreeWndProc", "WM_PAINT");
|
|
{
|
|
PAINTSTRUCT ps;
|
|
|
|
hdc = BeginPaint(hWnd, &ps);
|
|
|
|
|
|
if (IsIconic(hWnd)) {
|
|
DrawIcon(hdc, 0, 0, GetTreeIcon(hWnd));
|
|
} else {
|
|
RECT rc2;
|
|
|
|
GetClientRect(hWnd, &rc);
|
|
rc.left = GetSplit(hWnd);
|
|
|
|
if (rc.left >= rc.right)
|
|
rc.left = 0;
|
|
|
|
rc.right = rc.left + dxFrame;
|
|
|
|
GetClientRect(HasDrivesWindow(hWnd), &rc2);
|
|
|
|
rc2.top = rc2.bottom;
|
|
rc2.bottom += dyBorder;
|
|
rc2.left = rc.left;
|
|
rc2.right = rc.right;
|
|
FillRect(hdc, &rc2, GetStockObject(BLACK_BRUSH));
|
|
|
|
// draw the black pane handle
|
|
|
|
rc.top = rc.bottom - GetSystemMetrics(SM_CYHSCROLL);
|
|
FillRect(hdc, &rc, GetStockObject(BLACK_BRUSH));
|
|
}
|
|
|
|
EndPaint(hWnd, &ps);
|
|
break;
|
|
}
|
|
|
|
|
|
case WM_SIZE:
|
|
if (wParam != SIZEICONIC)
|
|
ResizeWindows(hWnd,LOWORD(lParam),HIWORD(lParam));
|
|
|
|
// if wParam is SIZENOMDICRAP this WM_SIZE was generated by us.
|
|
// don't let this through to the DefMDIChildProc().
|
|
// that might change the min/max state, (show parameter)
|
|
if (wParam == SIZENOMDICRAP)
|
|
break;
|
|
/*** FALL THRU ***/
|
|
|
|
default:
|
|
|
|
DEF_MDI_PROC:
|
|
|
|
return DefMDIChildProc(hWnd, wMsg, wParam, lParam);
|
|
}
|
|
|
|
return 0L;
|
|
}
|
|
|
|
|
|
VOID
|
|
ResizeWindows(
|
|
HWND hwndParent,
|
|
WORD dxWindow,
|
|
WORD dyWindow
|
|
)
|
|
{
|
|
INT dy, split;
|
|
INT cDriveRows, cDrivesPerRow;
|
|
DWORD dw;
|
|
HWND hwndTree,hwndDir,hwndDrives;
|
|
|
|
GetTreeWindows(hwndParent, &hwndTree, &hwndDir, &hwndDrives);
|
|
|
|
split = GetSplit(hwndParent);
|
|
|
|
// user has been fixed to do this right
|
|
|
|
dy = dyWindow + dyBorder;
|
|
|
|
if (hwndTree) {
|
|
if (!hwndDir)
|
|
MoveWindow(hwndTree, dxFrame, 0, dxWindow - dxFrame + dyBorder, dy, TRUE);
|
|
else
|
|
MoveWindow(hwndTree, -dyBorder, 0, split + dyBorder, dy, TRUE);
|
|
}
|
|
|
|
if (hwndDir) {
|
|
if (!hwndTree)
|
|
MoveWindow(hwndDir, dxFrame, 0, dxWindow - dxFrame + dyBorder, dy, TRUE);
|
|
else
|
|
MoveWindow(hwndDir, split + dxFrame, 0,
|
|
dxWindow - split - dxFrame + dyBorder, dy, TRUE);
|
|
}
|
|
}
|