ciderpress/app/ContentList.cpp

/*
 * CiderPress
 * Copyright (C) 2007 by faddenSoft, LLC.  All Rights Reserved.
 * See the file LICENSE for distribution terms.
 */
/*
 * Implementation of list control showing archive contents.
 */
#include "stdafx.h"
#include "Main.h"
#include "ContentList.h"

const LPARAM kDescendingFlag = 0x0100;


BEGIN_MESSAGE_MAP(ContentList, CListCtrl)
	ON_WM_CREATE()
	ON_WM_DESTROY()
	ON_WM_SYSCOLORCHANGE()
	//ON_WM_MOUSEWHEEL()
	ON_NOTIFY_REFLECT(NM_DBLCLK, OnDoubleClick)
	ON_NOTIFY_REFLECT(NM_RCLICK, OnRightClick)
	ON_NOTIFY_REFLECT(LVN_COLUMNCLICK, OnColumnClick)
	ON_NOTIFY_REFLECT(LVN_GETDISPINFO, OnGetDispInfo)
END_MESSAGE_MAP()

#if 0
afx_msg BOOL
ContentList::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt)
{
	WMSG0("MOUSE WHEEL\n");
	return CWnd::OnMouseWheel(nFlags, zDelta, pt);
//	return TRUE;
}
#endif


/*
 * Put the window into "report" mode, and add a client edge since we're not
 * using one on the frame window.
 */
BOOL
ContentList::PreCreateWindow(CREATESTRUCT& cs)
{
	if (!CListCtrl::PreCreateWindow(cs))
		return FALSE;

	cs.style &= ~LVS_TYPEMASK;
	cs.style |= LVS_REPORT;
	cs.style |= LVS_SHOWSELALWAYS;
	cs.dwExStyle |= WS_EX_CLIENTEDGE;

	return TRUE;
}

/*
 * Auto-cleanup the object.
 */
void
ContentList::PostNcDestroy(void)
{
	WMSG0("ContentList PostNcDestroy\n");
	delete this;
}

static inline int
MaxVal(int a, int b)
{
	return a > b ? a : b;
}

/*
 * Create and populate list control.
 */
int
ContentList::OnCreate(LPCREATESTRUCT lpcs)
{
	CString colHdrs[kNumVisibleColumns] = {
		"Pathname", "Type", "Aux", "Mod Date",
		"Format", "Size", "Ratio", "Packed", "Access"
	};	// these should come from string table, not hard-coded
	static int colFmt[kNumVisibleColumns] = {
		LVCFMT_LEFT, LVCFMT_LEFT, LVCFMT_LEFT, LVCFMT_LEFT,
		LVCFMT_LEFT, LVCFMT_RIGHT, LVCFMT_RIGHT, LVCFMT_RIGHT, LVCFMT_LEFT
	};

	if (CListCtrl::OnCreate(lpcs) == -1)
		return -1;

	/*
	 * Create all of the columns with an initial width of 1, then set
	 * them to the correct values with NewColumnWidths() (which handles
	 * defaulted values).
	 */
	for (int i = 0; i < kNumVisibleColumns; i++)
		InsertColumn(i, colHdrs[i], colFmt[i], 1);
	NewColumnWidths();

	/* add images for list; this MUST be loaded before header images */
	LoadListImages();
	SetImageList(&fListImageList, LVSIL_SMALL);

	/* add our up/down arrow bitmaps */
	LoadHeaderImages();
	CHeaderCtrl* pHeader = GetHeaderCtrl();
	if (pHeader == nil)
		WMSG0("GLITCH: couldn't get header ctrl\n");
	ASSERT(pHeader != NULL);
	pHeader->SetImageList(&fHdrImageList);

	/* load the data and sort it */
	if (LoadData() != 0) {
		MessageBox("Not all entries were loaded.", "Error",
			MB_OK | MB_ICONSTOP);
		/* keep going with what we've got; the error only affects display */
	}
	NewSortOrder();

	/* grab the focus so we get keyboard and mouse wheel messages */
	SetFocus();

	/* highlight/select entire line, not just filename */
	ListView_SetExtendedListViewStyleEx(m_hWnd,
		LVS_EX_FULLROWSELECT, LVS_EX_FULLROWSELECT);

	return 0;
}

/*
 * If we're being shut down, save off the column width info before the window
 * gets destroyed.
 */
void
ContentList::OnDestroy(void)
{
	WMSG0("ContentList OnDestroy\n");

	ExportColumnWidths();
	CListCtrl::OnDestroy();
}

/*
 * The system colors are changing; delete the image list and re-load it.
 */
void
ContentList::OnSysColorChange(void)
{
	fHdrImageList.DeleteImageList();
	LoadHeaderImages();
}

/*
 * They've clicked on a header.  Figure out what kind of sort order we want
 * to use.
 */
void
ContentList::OnColumnClick(NMHDR* pnmh, LRESULT* pResult)
{
	NM_LISTVIEW* pnmlv = (NM_LISTVIEW*) pnmh;

	WMSG0("OnColumnClick!!\n");

	if (fpLayout->GetSortColumn() == pnmlv->iSubItem)
		fpLayout->SetAscending(!fpLayout->GetAscending());
	else {
		fpLayout->SetSortColumn(pnmlv->iSubItem);
		fpLayout->SetAscending(true);
	}

	NewSortOrder();
	*pResult = 0;
}

/*
 * Copy the current column widths out to the Preferences object.
 */
void
ContentList::ExportColumnWidths(void)
{
	//WMSG0("ExportColumnWidths\n");
	for (int i = 0; i < kNumVisibleColumns; i++)
		fpLayout->SetColumnWidth(i, GetColumnWidth(i));
}

/*
 * Call this when the column widths are changed programmatically (e.g. by
 * the preferences page enabling or disabling columns).
 *
 * We want to set any defaulted entries to actual values so that, if the
 * font properties change, column A doesn't resize when column B is tweaked
 * in the Preferences dialog.  (If it's still set to "default", then when
 * we say "update all widths" the defaultedness will be re-evaluated.)
 */
void
ContentList::NewColumnWidths(void)
{
	for (int i = 0; i < kNumVisibleColumns; i++) {
		int width = fpLayout->GetColumnWidth(i);
		if (width == ColumnLayout::kWidthDefaulted) {
			width = GetDefaultWidth(i);
			WMSG2("Defaulting width %d to %d\n", i, width);
			fpLayout->SetColumnWidth(i, width);
		}
		SetColumnWidth(i, width);
	}
}

#if 0	// replaced by GenericArchive reload flag
/*
 * If we're in the middle of an update, invalidate the contents of the list
 * so that we don't try to redraw from underlying storage that is no longer
 * there.
 *
 * If we call DeleteAllItems the list will immediately blank itself.  This
 * rather sucks.  Instead, we just mark it as invalid and have the "virtual"
 * list goodies return empty strings.  If the window has to redraw it won't
 * do so properly, but most of the time it looks good and it beats flashing
 * blank or crashing.
 */
void
ContentList::Invalidate(void)
{
	fInvalid = true;
}
#endif

/*
 * The archive contents have changed.  Reload the list from the
 * GenericArchive.
 *
 * Reloading causes the current selection and view position to be lost.  This
 * is sort of annoying if all we did is add a comment, so we try to save the
 * selection and reapply it.  To do this correctly we need some sort of
 * unique identifier so we can spot the records that have come back.
 *
 * Nothing in GenericArchive should be considered valid at this point.
 */
void
ContentList::Reload(bool saveSelection)
{
	WMSG0("Reloading ContentList\n");
	CWaitCursor waitc;

//	fInvalid = false;
	fpArchive->ClearReloadFlag();

	long* savedSel = nil;
	long selCount = 0;

	if (saveSelection) {
		/* get the serials for the current selection (if any) */
		savedSel = GetSelectionSerials(&selCount);
	}

	/* get the item that's currently at the top of the page */
	int top = GetTopIndex();
	int bottom = top + GetCountPerPage() -1;

	/* reload the list */
	LoadData();
	NewSortOrder();

	if (savedSel != nil) {
		/* restore the selection */
		RestoreSelection(savedSel, selCount);
		delete[] savedSel;
	}

	/* try to put us back in the same place */
	EnsureVisible(bottom, false);
	EnsureVisible(top, false);
}

#if 1
/*
 * Get the "selection serials" from the list of selected items.
 *
 * The caller is responsible for delete[]ing the return value.
 */
long*
ContentList::GetSelectionSerials(long* pSelCount)
{
	long* savedSel = nil;
	long maxCount;

	maxCount = GetSelectedCount();
	WMSG1("GetSelectionSerials (maxCount=%d)\n", maxCount);

	if (maxCount > 0) {
		savedSel = new long[maxCount];
		int idx = 0;

		POSITION posn;
		posn = GetFirstSelectedItemPosition();
		ASSERT(posn != nil);
		if (posn == nil)
			return nil;
		while (posn != nil) {
			int num = GetNextSelectedItem(posn);
			GenericEntry* pEntry = (GenericEntry*) GetItemData(num);

			if (idx == maxCount) {
				ASSERT(false);
				break;
			}
			savedSel[idx++] = pEntry->GetSelectionSerial();
		}

		ASSERT(idx == maxCount);
	}

	*pSelCount = maxCount;
	return savedSel;
}

/*
 * Restore the selection from the "savedSel" list.
 */
void
ContentList::RestoreSelection(const long* savedSel, long selCount)
{
	WMSG1("RestoreSelection (selCount=%d)\n", selCount);
	if (savedSel == nil)
		return;

	int i, j;

	for (i = GetItemCount()-1; i >= 0; i--) {
		GenericEntry* pEntry = (GenericEntry*) GetItemData(i);

		for (j = 0; j < selCount; j++) {
			if (pEntry->GetSelectionSerial() == savedSel[j] &&
				pEntry->GetSelectionSerial() != -1)
			{
				/* match! */
				if (SetItemState(i, LVIS_SELECTED, LVIS_SELECTED) == FALSE) {
					WMSG1("WHOA: unable to set selected on item=%d\n", i);
				}
				break;
			}
		}
	}
}
#endif


/*
 * Call this when the sort order changes.
 */
void
ContentList::NewSortOrder(void)
{
	CWaitCursor wait;		// automatically changes mouse to hourglass
	int column;

	column = fpLayout->GetSortColumn();
	if (!fpLayout->GetAscending())
		column |= kDescendingFlag;

	SetSortIcon();
	SortItems(CompareFunc, column);
}

/*
 * Get the file type display string.
 *
 * "buf" must be able to hold at least 4 characters plus the NUL (i.e. 5).
 * Use kFileTypeBufLen.
 */
/*static*/ void
ContentList::MakeFileTypeDisplayString(const GenericEntry* pEntry, char* buf)
{
	bool isDir =
		pEntry->GetRecordKind() == GenericEntry::kRecordKindVolumeDir ||
		pEntry->GetRecordKind() == GenericEntry::kRecordKindDirectory;

	if (pEntry->GetSourceFS() == DiskImg::kFormatMacHFS && isDir) {
		/* HFS directories don't have types; fake it */
		::lstrcpy(buf, "DIR/");
	} else if (!(pEntry->GetFileType() >= 0 && pEntry->GetFileType() <= 0xff))
	{
		/* oversized type; assume it's HFS */
		char typeBuf[kFileTypeBufLen];
		MakeMacTypeString(pEntry->GetFileType(), typeBuf);

		switch (pEntry->GetRecordKind()) {
		case GenericEntry::kRecordKindFile:
			::lstrcpy(buf, typeBuf);
			break;
		case GenericEntry::kRecordKindForkedFile:
			::sprintf(buf, "%s+", typeBuf);
			break;
		case GenericEntry::kRecordKindUnknown:
			// shouldn't happen
			::sprintf(buf, "%s-", typeBuf);
			break;
		case GenericEntry::kRecordKindVolumeDir:
		case GenericEntry::kRecordKindDirectory:
		case GenericEntry::kRecordKindDisk:
		default:
			ASSERT(FALSE);
			::lstrcpy(buf, "!!!");
			break;
		}
	} else {
		/* typical ProDOS-style stuff */
		switch (pEntry->GetRecordKind()) {
		case GenericEntry::kRecordKindVolumeDir:
		case GenericEntry::kRecordKindDirectory:
			::sprintf(buf, "%s/", pEntry->GetFileTypeString());
			break;
		case GenericEntry::kRecordKindFile:
			::sprintf(buf, "%s", pEntry->GetFileTypeString());
			break;
		case GenericEntry::kRecordKindForkedFile:
			::sprintf(buf, "%s+", pEntry->GetFileTypeString());
			break;
		case GenericEntry::kRecordKindDisk:
			::lstrcpy(buf, "Disk");
			break;
		case GenericEntry::kRecordKindUnknown:
			// usually a GSHK-archived empty data file does this
			::sprintf(buf, "%s-", pEntry->GetFileTypeString());
			break;
		default:
			ASSERT(FALSE);
			::lstrcpy(buf, "!!!");
			break;
		}
	}
}

/*
 * Convert an HFS file/creator type into a string.
 *
 * "buf" must be able to hold at least 4 characters plus the NUL.  Use
 * kFileTypeBufLen.
 */
/*static*/ void
ContentList::MakeMacTypeString(unsigned long val, char* buf)
{
	/* expand longword with ASCII type bytes */
	buf[0] = (unsigned char) (val >> 24);
	buf[1] = (unsigned char) (val >> 16);
	buf[2] = (unsigned char) (val >> 8);
	buf[3] = (unsigned char) val;
	buf[4] = '\0';

	/* sanitize */
    while (*buf != '\0') {
		*buf = DiskImg::MacToASCII(*buf);
        buf++;
    }
}

/*
 * Get the aux type display string.
 *
 * "buf" must be able to hold at least 5 characters plus the NUL (i.e. 6).
 * Use kFileTypeBufLen.
 */
/*static*/ void
ContentList::MakeAuxTypeDisplayString(const GenericEntry* pEntry, char* buf)
{
	bool isDir =
		pEntry->GetRecordKind() == GenericEntry::kRecordKindVolumeDir ||
		pEntry->GetRecordKind() == GenericEntry::kRecordKindDirectory;

	if (pEntry->GetSourceFS() == DiskImg::kFormatMacHFS && isDir) {
		/* HFS directories don't have types; fake it */
		::lstrcpy(buf, "    ");
	} else if (!(pEntry->GetFileType() >= 0 && pEntry->GetFileType() <= 0xff))
	{
		/* oversized type; assume it's HFS */
		MakeMacTypeString(pEntry->GetAuxType(), buf);
	} else {
		if (pEntry->GetRecordKind() == GenericEntry::kRecordKindDisk)
			::sprintf(buf, "%dk", pEntry->GetUncompressedLen() / 1024);
		else
			::sprintf(buf, "$%04lX", pEntry->GetAuxType());
	}
}


/*
 * Generate the funky ratio display string.  While we're at it, return a
 * numeric value that we can sort on.
 *
 * "buf" must be able to hold at least 6 chars plus the NULL.
 */
void
ContentList::MakeRatioDisplayString(const GenericEntry* pEntry, char* buf,
	int* pPerc)
{
	LONGLONG totalLen, totalCompLen;
	totalLen = pEntry->GetUncompressedLen();
	totalCompLen = pEntry->GetCompressedLen();

	if ((!totalLen && totalCompLen) || (totalLen && !totalCompLen)) {
		::lstrcpy(buf, "---");	 /* weird */
		*pPerc = -1;
	} else if (totalLen < totalCompLen) {
		::lstrcpy(buf, ">100%"); /* compression failed? */
		*pPerc = 101;
	} else {
		*pPerc = ComputePercent(totalCompLen, totalLen);
		::sprintf(buf, "%d%%", *pPerc);
	}
}


/*
 * Return the value for a particular row and column.
 *
 * This gets called *a lot* while the list is being drawn, scrolled, etc.
 * Don't do anything too expensive.
 */
void
ContentList::OnGetDispInfo(NMHDR* pnmh, LRESULT* pResult)
{
	//static const char kAccessBits[] = "DNB  IWR";
	static const char kAccessBits[] = "dnb  iwr";
	LV_DISPINFO* plvdi = (LV_DISPINFO*) pnmh;
	CString str;

	if (fpArchive->GetReloadFlag()) {
		::lstrcpy(plvdi->item.pszText, "");
		*pResult = 0;
		return;
	}

	//WMSG0("OnGetDispInfo\n");

	if (plvdi->item.mask & LVIF_TEXT) {
		GenericEntry* pEntry = (GenericEntry*) plvdi->item.lParam;
		//GenericEntry* pEntry = fpArchive->GetEntry(plvdi->item.iItem);

		switch (plvdi->item.iSubItem) {
		case 0:		// pathname
			if ((int)strlen(pEntry->GetDisplayName()) > plvdi->item.cchTextMax) {
				// looks like current limit is 264 chars, which we could hit
				::strncpy(plvdi->item.pszText, pEntry->GetDisplayName(),
					plvdi->item.cchTextMax);
				plvdi->item.pszText[plvdi->item.cchTextMax-1] = '\0';
			} else {
				::lstrcpy(plvdi->item.pszText, pEntry->GetDisplayName());
			}

			/*
			 * Sanitize the string.  This is really only necessary for
			 * HFS, which has 8-bit "Macintosh Roman" filenames.  The Win32
			 * controls can deal with it, but it looks better if we massage
			 * it a little.
			 */
			{
				unsigned char* str = (unsigned char*) plvdi->item.pszText;

				while (*str != '\0') {
					*str = DiskImg::MacToASCII(*str);
					str++;
				}
			}
			break;
		case 1:		// type
			MakeFileTypeDisplayString(pEntry, plvdi->item.pszText);
			break;
		case 2:		// auxtype
			MakeAuxTypeDisplayString(pEntry, plvdi->item.pszText);
			break;
		case 3:		// mod date
			{
				CString modDate;
				FormatDate(pEntry->GetModWhen(), &modDate);
				::lstrcpy(plvdi->item.pszText, (LPCTSTR) modDate);
			}
			break;
		case 4:		// format
			ASSERT(pEntry->GetFormatStr() != nil);
			::lstrcpy(plvdi->item.pszText, pEntry->GetFormatStr());
			break;
		case 5:		// size
			::sprintf(plvdi->item.pszText, "%ld", pEntry->GetUncompressedLen());
			break;
		case 6: 	// ratio
			int crud;
			MakeRatioDisplayString(pEntry, plvdi->item.pszText, &crud);
			break;
		case 7:		// packed
			::sprintf(plvdi->item.pszText, "%ld", pEntry->GetCompressedLen());
			break;
		case 8:		// access
			char bitLabels[sizeof(kAccessBits)];
			int i, j, mask;

			for (i = 0, j = 0, mask = 0x80; i < 8; i++, mask >>= 1) {
				if (pEntry->GetAccess() & mask)
					bitLabels[j++] = kAccessBits[i];
			}
			bitLabels[j] = '\0';
			ASSERT(j < sizeof(bitLabels));
			//::sprintf(plvdi->item.pszText, "0x%02x", pEntry->GetAccess());
			::lstrcpy(plvdi->item.pszText, bitLabels);
			break;
		case 9:		// NuRecordIdx [hidden]
			break;
		default:
			ASSERT(false);
			break;
		}
	}

	//if (plvdi->item.mask & LVIF_IMAGE) {
	//	WMSG2("IMAGE req item=%d subitem=%d\n",
	//		plvdi->item.iItem, plvdi->item.iSubItem);
	//}

	*pResult = 0;
}


/*
 * Helper functions for sort routine.
 */
static inline
CompareUnsignedLong(unsigned long u1, unsigned long u2)
{
	if (u1 < u2)
		return -1;
	else if (u1 > u2)
		return 1;
	else
		return 0;
}
static inline
CompareLONGLONG(LONGLONG u1, LONGLONG u2)
{
	if (u1 < u2)
		return -1;
	else if (u1 > u2)
		return 1;
	else
		return 0;
}

/*
 * Static comparison function for list sorting.
 */
int CALLBACK
ContentList::CompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{
	const GenericEntry* pEntry1 = (const GenericEntry*) lParam1;
	const GenericEntry* pEntry2 = (const GenericEntry*) lParam2;
	char tmpBuf1[16];		// needs >= 5 for file type compare, and
	char tmpBuf2[16];		// >= 7 for ratio string
	int result;

	/* for descending order, flip the parameters */
	if (lParamSort & kDescendingFlag) {
		const GenericEntry* tmp;
		lParamSort &= ~(kDescendingFlag);
		tmp = pEntry1;
		pEntry1 = pEntry2;
		pEntry2 = tmp;
	}

	switch (lParamSort) {
	case 0:		// pathname
		result = ::stricmp(pEntry1->GetDisplayName(), pEntry2->GetDisplayName());
		break;
	case 1:		// file type
		MakeFileTypeDisplayString(pEntry1, tmpBuf1);
		MakeFileTypeDisplayString(pEntry2, tmpBuf2);
		result = ::stricmp(tmpBuf1, tmpBuf2);
		if (result != 0)
			break;
		/* else fall through to case 2 */
	case 2:		// aux type
		if (pEntry1->GetRecordKind() == GenericEntry::kRecordKindDisk) {
			if (pEntry2->GetRecordKind() == GenericEntry::kRecordKindDisk) {
				result = pEntry1->GetAuxType() - pEntry2->GetAuxType();
			} else {
				result = -1;
			}
		} else if (pEntry2->GetRecordKind() == GenericEntry::kRecordKindDisk) {
			result = 1;
		} else {
			result = pEntry1->GetAuxType() - pEntry2->GetAuxType();
		}
		break;
	case 3:		// mod date
		result = CompareUnsignedLong(pEntry1->GetModWhen(),
					pEntry2->GetModWhen());
		break;
	case 4:		// format
		result = ::lstrcmp(pEntry1->GetFormatStr(), pEntry2->GetFormatStr());
		break;
	case 5:		// size
		result = CompareLONGLONG(pEntry1->GetUncompressedLen(),
					pEntry2->GetUncompressedLen());
		break;
	case 6:		// ratio
		int perc1, perc2;
		MakeRatioDisplayString(pEntry1, tmpBuf1, &perc1);
		MakeRatioDisplayString(pEntry2, tmpBuf2, &perc2);
		result = perc1 - perc2;
		break;
	case 7:		// packed
		result = CompareLONGLONG(pEntry1->GetCompressedLen(),
					pEntry2->GetCompressedLen());
		break;
	case 8:		// access
		result = CompareUnsignedLong(pEntry1->GetAccess(),
					pEntry2->GetAccess());
		break;
	case kNumVisibleColumns:	// file-order sort
	default:
		result = pEntry1->GetIndex() - pEntry2->GetIndex();
		break;
	}

	return result;
}

/*
 * Fill the columns with data from the archive entries.  We use a "virtual"
 * list control to avoid storing everything multiple times.  However, we
 * still create one item per entry so that the list control will do most
 * of the sorting for us (otherwise we have to do the sorting ourselves).
 *
 * Someday we should probably move to a wholly virtual list view.
 */
int
ContentList::LoadData(void)
{
	GenericEntry* pEntry;
	LV_ITEM lvi;
	int dirCount = 0;
	int idx = 0;

	DeleteAllItems();	// for Reload case

	pEntry = fpArchive->GetEntries();
	while (pEntry != nil) {
		pEntry->SetIndex(idx);

		lvi.mask = LVIF_TEXT | LVIF_IMAGE | LVIF_PARAM;
		lvi.iItem = idx++;
		lvi.iSubItem = 0;
		if (pEntry->GetDamaged())
			lvi.iImage = kListIconDamaged;
		else if (pEntry->GetSuspicious())
			lvi.iImage = kListIconSuspicious;
		else if (pEntry->GetHasNonEmptyComment())
			lvi.iImage = kListIconNonEmptyComment;
		else if (pEntry->GetHasComment())
			lvi.iImage = kListIconComment;
		else
			lvi.iImage = kListIconNone;
		lvi.pszText = LPSTR_TEXTCALLBACK;
		lvi.lParam = (LPARAM) pEntry;

		if (InsertItem(&lvi) == -1) {
			ASSERT(false);
			return -1;
		}

		pEntry = pEntry->GetNext();
	}

	WMSG3("ContentList got %d entries (%d files + %d unseen directories)\n",
		idx, idx - dirCount, dirCount);
	return 0;
}


/*
 * Return the default width for the specified column.
 */
int
ContentList::GetDefaultWidth(int col)
{
	int retval;

	switch (col) {
	case 0:	// pathname
		retval = 200;
		break;
	case 1:	// type (need "$XY" and long HFS types)
		//retval = MaxVal(GetStringWidth("XXMMM+"), GetStringWidth("XXType"));
		retval = MaxVal(GetStringWidth("XXMMMM+"), GetStringWidth("XXType"));
		break;
	case 2:	// auxtype (hex or long HFS type)
		//retval = MaxVal(GetStringWidth("XX$8888"), GetStringWidth("XXAux"));
		retval = MaxVal(GetStringWidth("XX$CCCC"), GetStringWidth("XXAux"));
		break;
	case 3:	// mod date
		retval = GetStringWidth("XX88-MMM-88 88:88");
		break;
	case 4:	// format
		retval = GetStringWidth("XXUncompr");
		break;
	case 5:	// uncompressed size
		retval = GetStringWidth("XX88888888");
		break;
	case 6:	// ratio
		retval = MaxVal(GetStringWidth("XXRatio"), GetStringWidth("XX100%"));
		break;
	case 7:	// packed
		retval = GetStringWidth("XX88888888");
		break;
	case 8:	// access
		retval = MaxVal(GetStringWidth("XXAccess"), GetStringWidth("XXdnbiwr"));
		break;
	default:
		ASSERT(false);
		retval = 0;
	}

	return retval;
}


/*
 * Set the up/down sorting arrow as appropriate.
 */
void
ContentList::SetSortIcon(void)
{
	CHeaderCtrl* pHeader = GetHeaderCtrl();
	ASSERT(pHeader != NULL);
	HDITEM curItem;

	/* update all column headers */
	for (int i = 0; i < kNumVisibleColumns; i++) {
		curItem.mask = HDI_IMAGE | HDI_FORMAT;
		pHeader->GetItem(i, &curItem);

		if (fpLayout->GetSortColumn() != i) {
			curItem.fmt &= ~(HDF_IMAGE | HDF_BITMAP_ON_RIGHT);
		} else {
			//WMSG1("  Sorting on %d\n", i);
			curItem.fmt |= HDF_IMAGE | HDF_BITMAP_ON_RIGHT;
			if (fpLayout->GetAscending())
				curItem.iImage = 0;
			else
				curItem.iImage = 1;
		}

		pHeader->SetItem(i, &curItem);
	}
}


/*
 * Handle a double-click on an item.
 *
 * The double-click should single-select the item, so we can throw it
 * straight into the viewer.  However, there are some uses for bulk
 * double-clicking.
 */
void
ContentList::OnDoubleClick(NMHDR*, LRESULT* pResult)
{
	/* test */
	DWORD dwPos = ::GetMessagePos();
	CPoint point ((int) LOWORD(dwPos), (int) HIWORD(dwPos));
	ScreenToClient(&point);

	int idx = HitTest(point);
	if (idx != -1) {
		CString str = GetItemText(idx, 0);
		WMSG1("%s was double-clicked\n", str);
	}

	((MainWindow*) ::AfxGetMainWnd())->HandleDoubleClick();
	*pResult = 0;
}

/*
 * Handle a right-click on an item.
 *
 * -The first item in the menu performs the double-click action on the
 * -item clicked on.  The rest of the menu is simply a mirror of the items
 * -in the "Actions" menu.  To make this work, we let the main window handle
 * -everything, but save a copy of the index of the menu item that was
 * -clicked on.
 *
 * [We do this differently now?? ++ATM 20040722]
 */
void
ContentList::OnRightClick(NMHDR*, LRESULT* pResult)
{
	DWORD dwPos = ::GetMessagePos();
	CPoint point ((int) LOWORD(dwPos), (int) HIWORD(dwPos));
	ScreenToClient(&point);

#if 0
	int idx = HitTest(point);
	if (idx != -1) {
		CString str = GetItemText(idx, 0);
		//TRACE1("%s was right-clicked\n", str);
		WMSG1("%s was right-clicked\n", str);

		//fRightClickItem = idx;
#else
	{
#endif

		CMenu menu;
		menu.LoadMenu(IDR_RIGHTCLICKMENU);
		CMenu* pContextMenu = menu.GetSubMenu(0);
		ClientToScreen(&point);
		pContextMenu->TrackPopupMenu(TPM_LEFTALIGN | TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
			point.x, point.y, ::AfxGetMainWnd());
	}
	*pResult = 0;
}

/*
 * Mark everything as selected.
 */
void
ContentList::SelectAll(void)
{
	int i;

	for (i = GetItemCount()-1; i >= 0; i--) {
		if (!SetItemState(i, LVIS_SELECTED, LVIS_SELECTED)) {
			WMSG1("Glitch: SetItemState failed on %d\n", i);
		}
	}
}

/*
 * Toggle the "selected" state flag.
 */
void
ContentList::InvertSelection(void)
{
	int i, oldState;

	for (i = GetItemCount()-1; i >= 0; i--) {
		oldState = GetItemState(i, LVIS_SELECTED);
		if (!SetItemState(i, oldState ? 0 : LVIS_SELECTED, LVIS_SELECTED)) {
			WMSG1("Glitch: SetItemState failed on %d\n", i);
		}
	}
}

/*
 * Select the contents of any selected subdirs.
 *
 * We do the selection by prefix matching on the display name.  This means
 * we do one pass through the list for the contents of a subdir, including
 * all of its subdirs.  However, the subdirs we select as we're going will
 * be indistinguishable from subdirs selected by the user, which could
 * result in O(n^2) behavior.
 *
 * We mark the user's selection with LVIS_CUT, process them all, then go
 * back and clear all of the LVIS_CUT flags.  Of course, if they select
 * the entire archive, we're approach O(n^2) anyway.  If efficiency is a
 * problem we will need to sort the list, do some work, then sort it back
 * the way it was.
 *
 * This doesn't work for volume directories, because their display name
 * isn't quite right.  That's okay for now -- we document that we don't
 * allow deletion of the volume directory.  (We don't currently have a test
 * to see if a GenericEntry is a volume dir; might want to add one.)
 */
void
ContentList::SelectSubdirContents(void)
{
	POSITION posn;
	posn = GetFirstSelectedItemPosition();
	if (posn == nil) {
		WMSG0("SelectSubdirContents: nothing is selected\n");
		return;
	}
	/* mark all selected items with LVIS_CUT */
	while (posn != nil) {
		int num = GetNextSelectedItem(/*ref*/ posn);
		SetItemState(num, LVIS_CUT, LVIS_CUT);
	}

	/* for each LVIS_CUT entry, select all prefix matches */
	CString prefix;
	for (int i = GetItemCount()-1; i >= 0; i--) {
		GenericEntry* pEntry = (GenericEntry*) GetItemData(i);
		bool origSel;

		origSel = GetItemState(i, LVIS_CUT) != 0;

		if (origSel &&
			(pEntry->GetRecordKind() == GenericEntry::kRecordKindDirectory ||
			 pEntry->GetRecordKind() == GenericEntry::kRecordKindVolumeDir))
		{
			prefix = pEntry->GetDisplayName();
			prefix += pEntry->GetFssep();
			SelectSubdir(prefix);
		}

//		if (!SetItemState(i, oldState ? 0 : LVIS_SELECTED, LVIS_SELECTED)) {
//			WMSG1("GLITCH: SetItemState failed on %d\n", i);
//		}
	}

	/* clear the LVIS_CUT flags */
	posn = GetFirstSelectedItemPosition();
	while (posn != nil) {
		int num = GetNextSelectedItem(/*ref*/ posn);
		SetItemState(num, 0, LVIS_CUT);
	}
}

/*
 * Select every entry whose display name has "displayPrefix" as a prefix.
 */
void
ContentList::SelectSubdir(const char* displayPrefix)
{
	WMSG1(" ContentList selecting all in '%s'\n", displayPrefix);
	int len = strlen(displayPrefix);

	for (int i = GetItemCount()-1; i >= 0; i--) {
		GenericEntry* pEntry = (GenericEntry*) GetItemData(i);

		if (strncasecmp(displayPrefix, pEntry->GetDisplayName(), len) == 0)
			SetItemState(i, LVIS_SELECTED, LVIS_SELECTED);
	}
}

/*
 * Mark all items as unselected.
 */
void
ContentList::ClearSelection(void)
{
	for (int i = GetItemCount()-1; i >= 0; i--)
		SetItemState(i, 0, LVIS_SELECTED);
}

/*
 * Find the next matching entry.  We start after the first selected item.
 * If we find a matching entry, we clear the current selection and select it.
 */
void
ContentList::FindNext(const char* str, bool down, bool matchCase,
	bool wholeWord)
{
	POSITION posn;
	int i, num;
	bool found = false;

	WMSG4("FindNext '%s' d=%d c=%d w=%d\n", str, down, matchCase, wholeWord);

	posn = GetFirstSelectedItemPosition();
	num = GetNextSelectedItem(/*ref*/ posn);
	if (num < 0) {		// num will be -1 if nothing is selected
		if (down)
			num = -1;
		else
			num = GetItemCount();
	}

	WMSG1("  starting search from entry %d\n", num);

	if (down) {
		for (i = num+1; i < GetItemCount(); i++) {
			found = CompareFindString(i, str, matchCase, wholeWord);
			if (found)
				break;
		}
		if (!found) {	// wrap
			for (i = 0; i <= num; i++) {
				found = CompareFindString(i, str, matchCase, wholeWord);
				if (found)
					break;
			}
		}
	} else {
		for (i = num-1; i >= 0; i--) {
			found = CompareFindString(i, str, matchCase, wholeWord);
			if (found)
				break;
		}
		if (!found) {	// wrap
			for (i = GetItemCount()-1; i >= num; i--) {
				found = CompareFindString(i, str, matchCase, wholeWord);
				if (found)
					break;
			}
		}
	}

	if (found) {
		WMSG1("Found, i=%d\n", i);
		ClearSelection();
		SetItemState(i, LVIS_SELECTED, LVIS_SELECTED);
		EnsureVisible(i, false);
	} else {
		WMSG0("Not found\n");
		MainWindow* pMain = (MainWindow*)::AfxGetMainWnd();
		pMain->FailureBeep();
	}
}

/*
 * Compare "str" against the contents of entry "num".
 */
bool
ContentList::CompareFindString(int num, const char* str, bool matchCase,
	bool wholeWord)
{
	GenericEntry* pEntry = (GenericEntry*) GetItemData(num);
	char fssep = pEntry->GetFssep();
	char* (*pSubCompare)(const char* str, const char* subStr) = nil;

	if (matchCase)
		pSubCompare = strstr;
	else
		pSubCompare = stristr;

	if (wholeWord) {
		const char* src = pEntry->GetDisplayName();
		const char* start = src;
		int strLen = strlen(str);

		/* scan forward, looking for a match that starts & ends on fssep */
		while (*start != '\0') {
			const char* match;

			match = (*pSubCompare)(start, str);

			if (match == nil)
				break;
			if ((match == src || *(match-1) == fssep) &&
				(match[strLen] == '\0' || match[strLen] == fssep))
			{
				return true;
			}

			start++;
		}
	} else {
		if ((*pSubCompare)(pEntry->GetDisplayName(), str) != nil)
			return true;
	}

	return false;
}