320 lines
7.3 KiB
C
320 lines
7.3 KiB
C
/*
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* mru.c
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*
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* This file is part of Emu48
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*
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* Copyright (C) 2007 Christoph Gießelink
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*
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*/
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#include "pch.h"
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#include "resource.h"
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#include "Emu48.h"
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static TCHAR szOriginal[MAX_PATH] = _T("");
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static LPTSTR *ppszFiles = NULL; // pointer to MRU table
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static INT nEntry = 0; // no. of MRU entries
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static HMENU hMruMenu = NULL; // menu handle for MRU list
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static INT nMruPos; // insert position for MRU list
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static BOOL GetMenuPosForId(HMENU hMenu, UINT nItem)
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{
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HMENU hSubMenu;
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UINT nID;
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INT i,nMaxID;
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nMaxID = GetMenuItemCount(hMenu);
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for (i = 0; i < nMaxID; ++i)
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{
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nID = GetMenuItemID(hMenu,i); // get ID
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if (nID == 0) continue; // separator or invalid command
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if (nID == (UINT)-1) // possibly a popup menu
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{
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hSubMenu = GetSubMenu(hMenu,i); // try to get handle to popup menu
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if (hSubMenu != NULL) // it's a popup menu
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{
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// recursive search
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if (GetMenuPosForId(hSubMenu,nItem))
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return TRUE;
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}
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continue;
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}
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if (nID == nItem) // found ID
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{
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hMruMenu = hMenu; // remember menu and position
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nMruPos = i;
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return TRUE;
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}
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}
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return FALSE;
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}
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BOOL MruInit(INT nNum)
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{
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HMENU hMenu = GetMenu(hWnd); // main menu
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_ASSERT(ppszFiles == NULL); // MRU already initialized
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if (*szOriginal == 0) // get orginal value of first MRU entry
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{
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VERIFY(GetMenuString(hMenu,ID_FILE_MRU_FILE1,szOriginal,ARRAYSIZEOF(szOriginal),MF_BYCOMMAND));
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}
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// no. of files in MRU list
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nEntry = ReadSettingsInt(_T("MRU"),_T("FileCount"),nNum);
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// look for menu position of ID_FILE_MRU_FILE1
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VERIFY(GetMenuPosForId(hMenu,ID_FILE_MRU_FILE1));
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if (nEntry > 0) // allocate MRU table
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{
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// create MRU table
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if ((ppszFiles = HeapAlloc(hHeap,0,nEntry * sizeof(*ppszFiles))) == NULL)
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return TRUE;
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// fill each entry
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for (nNum = 0; nNum < nEntry; ++nNum)
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ppszFiles[nNum] = NULL;
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MruReadList(); // read actual MRU list
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MruUpdateMenu(); // update menu
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}
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else // kill MRU menu entries
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{
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// delete MRU menu
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DeleteMenu(hMruMenu,nMruPos,MF_BYPOSITION);
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// delete following separator
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_ASSERT((GetMenuState(hMruMenu,nMruPos,MF_BYPOSITION) & MF_SEPARATOR) != 0);
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DeleteMenu(hMruMenu,nMruPos,MF_BYPOSITION);
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}
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return FALSE;
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}
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VOID MruCleanup(VOID)
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{
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INT i;
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MruWriteList(); // write actual MRU list
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for (i = 0; i < nEntry; ++i) // cleanup each entry
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{
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if (ppszFiles[i] != NULL)
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HeapFree(hHeap,0,ppszFiles[i]); // cleanup entry
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}
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if (ppszFiles != NULL) // table defined
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{
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HeapFree(hHeap,0,ppszFiles); // free table
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ppszFiles = NULL;
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}
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return;
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}
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VOID MruAdd(LPCTSTR lpszEntry)
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{
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TCHAR szFilename[MAX_PATH];
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LPTSTR lpFilePart;
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INT i;
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if (nEntry == 0) return; // no entries
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// get full path name
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GetFullPathName(lpszEntry,ARRAYSIZEOF(szFilename),szFilename,&lpFilePart);
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// look if entry is already in table
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for (i = 0; i < nEntry; ++i)
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{
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// already in table -> quit
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if ( ppszFiles[i] != NULL
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&& lstrcmpi(ppszFiles[i],szFilename) == 0)
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{
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MruUpdateMenu(); // update menu
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return;
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}
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}
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i = nEntry - 1; // last index
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if (ppszFiles[i] != NULL)
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HeapFree(hHeap,0,ppszFiles[i]); // free oldest entry
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for (; i > 0; --i) // move old entries 1 line down
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{
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ppszFiles[i] = ppszFiles[i-1];
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}
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// add new entry to top
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ppszFiles[0] = DuplicateString(szFilename);
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MruUpdateMenu(); // update menu
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return;
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}
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VOID MruRemove(INT nIndex)
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{
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HeapFree(hHeap,0,ppszFiles[nIndex]); // free entry
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for (; nIndex < nEntry - 1; ++nIndex) // move old entries 1 line up
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{
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ppszFiles[nIndex] = ppszFiles[nIndex+1];
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}
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ppszFiles[nIndex] = NULL; // clear last line
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MruUpdateMenu(); // update menu
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return;
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}
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INT MruEntries(VOID)
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{
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return nEntry;
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}
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LPCTSTR MruFilename(INT nIndex)
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{
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_ASSERT(ppszFiles != NULL); // MRU not initialized
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_ASSERT(nIndex >= 0 && nIndex < nEntry); // inside range
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return ppszFiles[nIndex];
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}
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VOID MruUpdateMenu(VOID)
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{
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TCHAR szCurPath[MAX_PATH];
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HANDLE hMenu;
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BOOL bEmpty;
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INT i;
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if (nEntry == 0) return; // no entries
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_ASSERT(ppszFiles != NULL); // MRU not initialized
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_ASSERT(hWnd != NULL);
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VERIFY(hMenu = GetMenu(hWnd)); // main menu
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bEmpty = TRUE; // MRU list empty
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for (i = 0; i < nEntry; ++i) // delete all menu entries
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{
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DeleteMenu(hMenu,ID_FILE_MRU_FILE1+i,MF_BYCOMMAND);
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if (ppszFiles[i] != NULL) // valid entry
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bEmpty = FALSE; // MRU list not empty
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}
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if (bEmpty) // empty MRU list
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{
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// fill with orginal string
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VERIFY(InsertMenu(hMruMenu,nMruPos,MF_STRING|MF_BYPOSITION|MF_GRAYED,ID_FILE_MRU_FILE1,szOriginal));
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return;
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}
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// current directory
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GetCurrentDirectory(ARRAYSIZEOF(szCurPath),szCurPath);
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for (i = 0; i < nEntry; ++i) // add menu entries
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{
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if (ppszFiles[i] != NULL) // valid entry
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{
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TCHAR szMenuname[2*MAX_PATH+3];
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TCHAR szFilename[MAX_PATH];
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LPTSTR lpFilePart,lpszPtr;
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// check if file path and current path is identical
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if (GetFullPathName(ppszFiles[i],ARRAYSIZEOF(szFilename),szFilename,&lpFilePart))
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{
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TCHAR szCutname[MAX_PATH];
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*(lpFilePart-1) = 0; // devide path and name
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// name is current directory -> use only name
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if (lstrcmpi(szCurPath,szFilename) == 0)
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{
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// short name view
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}
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else
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{
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// full name view
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lpFilePart = ppszFiles[i];
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}
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// cut filename to fit into menu
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GetCutPathName(lpFilePart,szCutname,ARRAYSIZEOF(szCutname),36);
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lpFilePart = szCutname;
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lpszPtr = szMenuname; // adding accelerator key
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*lpszPtr++ = _T('&');
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*lpszPtr++ = _T('0') + ((i + 1) % 10);
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*lpszPtr++ = _T(' ');
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// copy file to view buffer and expand & to &&
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while (*lpFilePart != 0)
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{
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if (*lpFilePart == _T('&'))
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{
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*lpszPtr++ = *lpFilePart;
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}
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*lpszPtr++ = *lpFilePart++;
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}
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*lpszPtr = 0;
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VERIFY(InsertMenu(hMruMenu,nMruPos+i,MF_STRING|MF_BYPOSITION,ID_FILE_MRU_FILE1+i,szMenuname));
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}
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}
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}
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return;
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}
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VOID MruWriteList(VOID)
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{
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TCHAR szItemname[32];
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INT i;
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// no. of files in MRU list
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WriteSettingsInt(_T("MRU"),_T("FileCount"),nEntry);
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for (i = 0; i < nEntry; ++i) // add menu entries
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{
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_ASSERT(ppszFiles != NULL); // MRU not initialized
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wsprintf(szItemname,_T("File%d"),i+1);
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if (ppszFiles[i] != NULL)
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{
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WriteSettingsString(_T("MRU"),szItemname,ppszFiles[i]);
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}
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else
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{
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DelSettingsKey(_T("MRU"),szItemname);
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}
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}
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return;
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}
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VOID MruReadList(VOID)
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{
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TCHAR szFilename[MAX_PATH];
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TCHAR szItemname[32];
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LPTSTR lpszValue;
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INT i;
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_ASSERT(ppszFiles != NULL); // MRU not initialized
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for (i = 0; i < nEntry; ++i) // add menu entries
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{
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wsprintf(szItemname,_T("File%d"),i+1);
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ReadSettingsString(_T("MRU"),szItemname,_T(""),szFilename,ARRAYSIZEOF(szFilename));
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if (ppszFiles[i] != NULL) // already filled
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{
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HeapFree(hHeap,0,ppszFiles[i]); // free entry
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ppszFiles[i] = NULL; // clear last line
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lpszValue = _T("");
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}
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if (*szFilename) // read a valid entry
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{
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ppszFiles[i] = DuplicateString(szFilename);
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}
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}
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return;
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}
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