426 lines
12 KiB
C++
426 lines
12 KiB
C++
/*
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* pickicon - Icon picker
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*/
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#include "stdafx.h"
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#include "pickicon.h"
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#include "windowsx.h"
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#include "commdlg.h"
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#include "resource.h"
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#include "util.h"
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#define cA(a) (sizeof(a)/sizeof(a[0]))
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typedef TCHAR TCH;
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typedef struct COFN { /* common open file name */
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OPENFILENAME ofn; /* The thing COMMDLG wants */
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TCH tsz[MAX_PATH]; /* Where we build the name */
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TCH tszFilter[100]; /* File open/save filter */
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} COFN, *PCOFN;
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/*****************************************************************************
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*
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* InitOpenFileName
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*
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* Initialize a COFN structure.
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*
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*****************************************************************************/
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void PASCAL
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InitOpenFileName(HWND hwnd, PCOFN pcofn, UINT ids, LPCTSTR pszInit)
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{
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int itchMax;
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TCH tch;
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ZeroMemory(&pcofn->ofn, sizeof(pcofn->ofn));
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pcofn->ofn.lStructSize |= sizeof(pcofn->ofn);
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pcofn->ofn.hwndOwner = hwnd;
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pcofn->ofn.lpstrFilter = pcofn->tszFilter;
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pcofn->ofn.lpstrFile = pcofn->tsz;
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pcofn->ofn.nMaxFile = MAX_PATH;
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pcofn->ofn.Flags |= (OFN_HIDEREADONLY | OFN_NOCHANGEDIR);
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/* Get the filter string */
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itchMax = LoadString(SC::GetHinst(), ids, pcofn->tszFilter, cA(pcofn->tszFilter));
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if (itchMax) {
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/* Marker character must not be DBCS */
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tch = pcofn->tszFilter[itchMax-1];
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LPTSTR ptsz = pcofn->tszFilter;
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while (ptsz < &pcofn->tszFilter[itchMax]) {
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if (*ptsz == tch) *ptsz++ = '\0';
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else ptsz = CharNext(ptsz);
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}
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}
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/* Set the initial value */
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lstrcpyn(pcofn->tsz, pszInit, cA(pcofn->tsz));
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}
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/*
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* Instance info for the dialog.
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*/
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typedef struct PIDI { /* PickIcon dialog instance */
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LPTSTR ptszIconPath; /* Which file? */
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UINT ctchIconPath;
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int iIconIndex; /* Which icon number? */
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int *piIconIndex;
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TCH tszCurFile[MAX_PATH]; /* The path in the list box */
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} PIDI, *PPIDI;
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#define cxIcon GetSystemMetrics(SM_CXICON)
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#define cyIcon GetSystemMetrics(SM_CYICON)
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/*****************************************************************************
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*
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* PickIcon_ppidiHdlg
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*
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* Extract the PPIDI from an hdlg.
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*
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*****************************************************************************/
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#define PickIcon_ppidiHdlg(hdlg) ((PPIDI)GetWindowLongPtr(hdlg, DWLP_USER))
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/*****************************************************************************
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*
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* PickIcon_OnMeasureItem
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*
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* Tell USER the size of each item.
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*
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*****************************************************************************/
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void PASCAL
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PickIcon_OnMeasureItem(HWND hdlg, LPMEASUREITEMSTRUCT lpmi, PPIDI ppidi)
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{
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lpmi->itemWidth = cxIcon + 12;
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lpmi->itemHeight = cyIcon + 4;
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}
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/*****************************************************************************
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*
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* PickIcon_OnDrawItem
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*
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* Draw an icon.
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*
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*****************************************************************************/
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void PASCAL
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PickIcon_OnDrawItem(HWND hdlg, LPDRAWITEMSTRUCT lpdi, PPIDI ppidi)
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{
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SetBkColor(lpdi->hDC, GetSysColor((lpdi->itemState & ODS_SELECTED) ?
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COLOR_HIGHLIGHT : COLOR_WINDOW));
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/* repaint the selection state */
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ExtTextOut(lpdi->hDC, 0, 0, ETO_OPAQUE, &lpdi->rcItem, NULL, 0, NULL);
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/*
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* Preserve icon shape when BitBlitting it to a
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* mirrored DC.
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*/
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DWORD dwLayout=0L;
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if ((dwLayout=GetLayout(lpdi->hDC)) & LAYOUT_RTL)
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{
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SetLayout(lpdi->hDC, dwLayout|LAYOUT_BITMAPORIENTATIONPRESERVED);
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}
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/* draw the icon centered in the rectangle */
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if ((int)lpdi->itemID >= 0) {
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DrawIcon(lpdi->hDC,
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(lpdi->rcItem.left + lpdi->rcItem.right - cxIcon) / 2,
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(lpdi->rcItem.bottom + lpdi->rcItem.top - cyIcon) / 2,
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(HICON)lpdi->itemData);
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}
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/*
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* Restore the DC to its previous layout state.
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*/
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if (dwLayout & LAYOUT_RTL)
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{
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SetLayout(lpdi->hDC, dwLayout);
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}
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/* if it has the focus, draw the focus */
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if (lpdi->itemState & ODS_FOCUS) {
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DrawFocusRect(lpdi->hDC, &lpdi->rcItem);
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}
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}
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/*****************************************************************************
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*
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* PickIcon_OnDeleteItem
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*
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* USER is nuking an item. Clean it up.
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*
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*****************************************************************************/
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#define PickIcon_OnDeleteItem(hdlg, lpdi, ppidi) \
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DestroyIcon((HICON)(lpdi)->itemData)
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/*****************************************************************************
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*
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* PickIcon_FillIconList
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*
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* Fill in all the icons. If the user picks a bad place, we leave
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* garbage in the path (so he can edit the name) and leave the list
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* box blank.
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*
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*****************************************************************************/
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void PickIcon_FillIconList(HWND hdlg, PPIDI ppidi)
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{
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HCURSOR hcurOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
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HWND hwnd = GetDlgItem(hdlg, IDC_PICKICON);
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if (!IsWindow (hwnd))
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return;
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ListBox_SetColumnWidth(hwnd, cxIcon + 12);
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ListBox_ResetContent(hwnd);
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TCHAR szFile[cA(ppidi->tszCurFile)];
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GetDlgItemText(hdlg, IDC_PICKPATH, szFile, cA(szFile));
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// support indirect paths (e.g. %SystemRoot%\...")
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TCHAR szExpandedFile[cA(ppidi->tszCurFile)];
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ExpandEnvironmentStrings (szFile, szExpandedFile, cA(szExpandedFile));
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if (SearchPath(0, szExpandedFile, 0, cA(ppidi->tszCurFile),
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ppidi->tszCurFile, 0)) {
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ExtractIcons:
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int cIcons;
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cIcons = ExtractIconEx(ppidi->tszCurFile, 0, 0, 0, 0);
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if (cIcons) {
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HICON *rgIcons = (HICON *)LocalAlloc(LPTR, cIcons * sizeof(HICON));
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if (rgIcons) {
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cIcons = (int)ExtractIconEx(ppidi->tszCurFile, 0,
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rgIcons, NULL, cIcons);
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if (cIcons) {
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int iicon;
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SendMessage(hwnd, WM_SETREDRAW, 0, 0);
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for (iicon = 0; iicon < cIcons; iicon++) {
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ListBox_AddString(hwnd, rgIcons[iicon]);
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}
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if (ListBox_SetCurSel(hwnd, ppidi->iIconIndex) == LB_ERR) {
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ListBox_SetCurSel(hwnd, 0);
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}
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SendMessage(hwnd, WM_SETREDRAW, 1, 0);
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} else { /* Mysteriously unable to extract */
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}
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LocalFree((HLOCAL)rgIcons);
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} else { /* Not enough memory to load icons */
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}
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} else { /* No icons in the file */
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}
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// if indirect path was specified (e.g. "%SystemRoot%\..."), preserve indirection
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if ((lstrcmp (szExpandedFile, szFile) != 0) &&
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(lstrcmp (szExpandedFile, ppidi->tszCurFile) == 0))
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lstrcpy (ppidi->tszCurFile, szFile);
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SetDlgItemText(hdlg, IDC_PICKPATH, ppidi->tszCurFile);
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} else { /* File not found */
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SC sc;
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MMCErrorBox (sc.FromWin32(ERROR_FILE_NOT_FOUND));
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goto ExtractIcons;
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}
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InvalidateRect(hwnd, 0, 1);
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SetCursor(hcurOld);
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}
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/*****************************************************************************
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*
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* PickIcon_OnInitDialog
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*
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* Dialog init. Populate the list box with what we came in with.
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*
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*****************************************************************************/
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void PASCAL
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PickIcon_OnInitDialog(HWND hdlg, PPIDI ppidi)
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{
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SetWindowLongPtr(hdlg, DWLP_USER, (LPARAM)ppidi);
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SetDlgItemText(hdlg, IDC_PICKPATH,
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lstrcpyn(ppidi->tszCurFile,
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ppidi->ptszIconPath, cA(ppidi->tszCurFile)));
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SendDlgItemMessage(hdlg, IDC_PICKPATH, EM_LIMITTEXT,
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ppidi->ctchIconPath, 0);
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PickIcon_FillIconList(hdlg, ppidi);
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}
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/*****************************************************************************
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*
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* PickIcon_OnBrowse
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*
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*****************************************************************************/
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void PASCAL
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PickIcon_OnBrowse(HWND hdlg, PPIDI ppidi)
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{
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DWORD dw;
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COFN cofn;
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InitOpenFileName(hdlg, &cofn, IDS_ICONFILES, ppidi->tszCurFile);
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dw = GetFileAttributes(ppidi->tszCurFile);
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if (dw == 0xFFFFFFFF || (dw & FILE_ATTRIBUTE_DIRECTORY)) {
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cofn.tsz[0] = '\0';
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}
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if (GetOpenFileName(&cofn.ofn)) {
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SetDlgItemText(hdlg, IDC_PICKPATH, cofn.tsz);
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SendMessage(hdlg, DM_SETDEFID, IDOK, 0);
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PickIcon_FillIconList(hdlg, ppidi);
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}
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}
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/*****************************************************************************
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*
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* PickIcon_NameChange
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*
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* Determine whether the thing in the edit control doesn't match the
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* thing whose icons we are showing.
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*
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*****************************************************************************/
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BOOL PASCAL
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PickIcon_NameChange(HWND hdlg, PPIDI ppidi)
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{
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TCH tszBuffer[MAX_PATH];
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GetDlgItemText(hdlg, IDC_PICKPATH, tszBuffer, cA(tszBuffer));
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return lstrcmpi(tszBuffer, ppidi->tszCurFile);
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}
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/*****************************************************************************
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*
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* PickIcon_OnOk
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*
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* If the name has changed, treat this as a "Okay, now reload
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* the icons" rather than "Okay, I'm finished".
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*
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*****************************************************************************/
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void PASCAL
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PickIcon_OnOk(HWND hdlg, PPIDI ppidi)
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{
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if (PickIcon_NameChange(hdlg, ppidi)) {
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PickIcon_FillIconList(hdlg, ppidi);
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} else {
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int iIconIndex = (int)SendDlgItemMessage(hdlg, IDC_PICKICON,
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LB_GETCURSEL, 0, 0L);
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if (iIconIndex >= 0) { /* We have an icon */
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*ppidi->piIconIndex = iIconIndex;
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lstrcpyn(ppidi->ptszIconPath, ppidi->tszCurFile,
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ppidi->ctchIconPath);
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EndDialog(hdlg, 1);
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} else { /* No icon, act like cancel */
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EndDialog(hdlg, 0);
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}
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}
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}
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/*****************************************************************************
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*
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* PickIcon_OnCommand
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*
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*****************************************************************************/
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void PASCAL
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PickIcon_OnCommand(HWND hdlg, int id, UINT codeNotify, PPIDI ppidi)
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{
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switch (id) {
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case IDOK: PickIcon_OnOk(hdlg, ppidi); break;
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case IDCANCEL: EndDialog(hdlg, 0); break;
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case IDC_PICKBROWSE: PickIcon_OnBrowse(hdlg, ppidi); break;
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/*
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* When the name changes, remove the selection highlight.
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*/
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case IDC_PICKPATH:
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if (PickIcon_NameChange(hdlg, ppidi)) {
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SendDlgItemMessage(hdlg, IDC_PICKICON, LB_SETCURSEL, (WPARAM)-1, 0);
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}
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break;
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case IDC_PICKICON:
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if (codeNotify == LBN_DBLCLK) {
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PickIcon_OnOk(hdlg, ppidi);
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}
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break;
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}
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}
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/*****************************************************************************
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*
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* PickIcon_DlgProc
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*
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* Dialog procedure.
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*
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*****************************************************************************/
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/*
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* The HANDLE_WM_* macros weren't designed to be used from a dialog
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* proc, so we need to handle the messages manually. (But carefully.)
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*/
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INT_PTR EXPORT
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PickIcon_DlgProc(HWND hdlg, UINT wm, WPARAM wParam, LPARAM lParam)
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{
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PPIDI ppidi = PickIcon_ppidiHdlg(hdlg);
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switch (wm) {
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case WM_INITDIALOG: PickIcon_OnInitDialog(hdlg, (PPIDI)lParam); break;
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case WM_COMMAND:
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PickIcon_OnCommand(hdlg, (int)GET_WM_COMMAND_ID(wParam, lParam),
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(UINT)GET_WM_COMMAND_CMD(wParam, lParam),
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ppidi);
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break;
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case WM_DRAWITEM:
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PickIcon_OnDrawItem(hdlg, (LPDRAWITEMSTRUCT)lParam, ppidi);
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break;
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case WM_MEASUREITEM:
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PickIcon_OnMeasureItem(hdlg, (LPMEASUREITEMSTRUCT)lParam, ppidi);
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break;
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case WM_DELETEITEM:
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PickIcon_OnDeleteItem(hdlg, (LPDELETEITEMSTRUCT)lParam, ppidi);
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break;
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default: return 0; /* Unhandled */
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}
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return 1; /* Handled */
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}
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/*****************************************************************************
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*
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* PickIconDlg
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*
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* Ask the user to pick an icon.
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*
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* hwnd - owner window
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* ptszIconPath - (in) default icon file
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* (out) chosen icon file
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* ctchIconPath - size of ptszIconPath buffer
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* piIconIndex - (in) default icon index
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* (out) index of chosen icon
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*
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* If the dialog box is cancelled, then no values are changed.
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*
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*****************************************************************************/
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MMCBASE_API INT_PTR PASCAL
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PickIconDlg(HWND hwnd, LPTSTR ptszIconPath, UINT ctchIconPath, int *piIconIndex)
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{
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PIDI pidi;
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pidi.ptszIconPath = ptszIconPath;
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pidi.ctchIconPath = ctchIconPath;
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pidi.piIconIndex = piIconIndex;
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pidi.iIconIndex = *piIconIndex;
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return DialogBoxParam(SC::GetHinst(), MAKEINTRESOURCE(IDD_PICKICON), hwnd,
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PickIcon_DlgProc, (LPARAM)&pidi);
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}
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