listviewx.c

读系统日志,功能强大哟

#include "ListViewX.h"
#include "_Structures.h"
#include "_Constants.h"
#include "_GlobalVars.h"

short
ListView_GetColumnCount(HWND hwndLV)
{
	short sCol = 0;
	LVCOLUMN lvCol;

	lvCol.mask = LVCF_WIDTH;
	while(ListView_GetColumn(hwndLV, sCol++, &lvCol))
		;

	return --sCol;
}

void  
ListView_RefillLParamOrder(HWND hwndLV)
{
	int i, nCount;
	
	nCount = ListView_GetItemCount(hwndLV);
	for(i = 0; i< nCount; i++)
	{
		LVITEM lvItem;
		lvItem.mask		= LVIF_PARAM;
		lvItem.lParam	= (LPARAM)i;
		lvItem.iItem	= i;

		ListView_SetItem(hwndLV, &lvItem);
	}
}

void  
ListView_SetNextHeaderAppearance(HWND hwndLV)
{
	HWND hwndHdr;
	POINT ptCursorPos;
	HDHITTESTINFO hdHitInfo;
	LRESULT lResult;

	hwndHdr = ListView_GetHeader(hwndLV);

	GetCursorPos(&ptCursorPos);
	ScreenToClient(hwndHdr, &ptCursorPos);

	hdHitInfo.pt	= ptCursorPos;
	hdHitInfo.iItem	= -1;
	hdHitInfo.flags	= 0;

	lResult = SendMessage(hwndHdr, HDM_HITTEST, 0, (LPARAM)(LPHDHITTESTINFO)&hdHitInfo);
	if((lResult >= 0) && (hdHitInfo.flags & ~(HHT_ONDIVIDER | HHT_ONDIVOPEN)) && (hdHitInfo.iItem >= 0))
	{
		HDITEM hdItem;
		char buf[256];
		int x, nColIdx = hdHitInfo.iItem;
		short nColCount = ListView_GetColumnCount(hwndLV);

		//	Set image for clicked item.
		hdItem.mask       = HDI_FORMAT | HDI_TEXT;
		hdItem.pszText    = buf;
		hdItem.cchTextMax = 255;

		Header_GetItem(hwndHdr, nColIdx, &hdItem);

		hdItem.mask = HDI_FORMAT | HDI_BITMAP | HDI_TEXT;
		hdItem.fmt  = HDF_BITMAP | HDF_STRING | HDF_BITMAP_ON_RIGHT;
		hdItem.hbm  = g_pcEventLogListColumns[nColIdx].nSortOrder == ASCENDING  ? g_hbmAsc : 
					 (g_pcEventLogListColumns[nColIdx].nSortOrder == DESCENDING ? g_hbmDesc : g_hbmNone);

		Header_SetItem(hwndHdr, nColIdx, &hdItem);

		//	Reset image to none from all other items.
		for(x = 0; x < nColCount; x++)
		{
			if(x == nColIdx)
				continue;

			hdItem.mask = HDI_BITMAP | HDI_TEXT;
			Header_GetItem(hwndHdr, x, &hdItem);

			if(hdItem.hbm)
			{
				hdItem.mask = HDI_FORMAT | HDI_BITMAP | HDI_TEXT;
				hdItem.fmt  = HDF_BITMAP | HDF_STRING | HDF_BITMAP_ON_RIGHT;
				hdItem.hbm  = g_hbmNone;

				Header_SetItem(hwndHdr, x, &hdItem);
			}
		}
	}
}

int 
ListView_OnSort(HWND hDlg, HWND hwndLV, int iColumn, PFNLVCOMPARE lpfnCompare)
{
	int nColCount;
	
	nColCount = ListView_GetColumnCount(hwndLV);
	if(iColumn < nColCount)
	{
		DLGSORTDATA ds;

		if(g_pcEventLogListColumns[iColumn].nSortOrder == ASCENDING)
			g_pcEventLogListColumns[iColumn].nSortOrder = DESCENDING;
		else if(g_pcEventLogListColumns[iColumn].nSortOrder == DESCENDING)
			g_pcEventLogListColumns[iColumn].nSortOrder = NONE;
		else
			g_pcEventLogListColumns[iColumn].nSortOrder = ASCENDING;

		ds.hDlg		  = hDlg;
		ds.nSortOrder = g_pcEventLogListColumns[iColumn].nSortOrder;
		ds.nSortType  = g_pcEventLogListColumns[iColumn].nSortType;
		ds.nColIdx	  = iColumn;

		return (int)ListView_SortItems(hwndLV, lpfnCompare, (LPARAM)(&ds));
	}
	else
		return 0;
}

BOOL
ListView_EnsureColumnVisible(HWND hwndLV, short sColIndex)
{
	int iCount, nLVCount = ListView_GetItemCount(hwndLV), nMaxWidth = 0, nMaxHeaderWidth = 0;
	HDC hLVDC;

	//	ensure some conditions
	//	is a window?
	if(!IsWindow(hwndLV))
		return FALSE;
	//	is a listview?
	{
		TCHAR lpszLVClassName[_MAX_PATH + 1];
		if(!GetClassName(hwndLV, lpszLVClassName, _MAX_PATH + 1) || (_tcsicmp(lpszLVClassName, WC_LISTVIEW) != 0))
			return FALSE;
	}
	//	is in report style?
	if(!(GetWindowLong(hwndLV, GWL_STYLE) & LVS_REPORT))
		return FALSE;
	//	column out of range
	if(sColIndex > ListView_GetColumnCount(hwndLV))	//	it is 0-based
		return FALSE;

	nMaxWidth = ListView_GetColumnWidth(hwndLV, sColIndex);

	hLVDC = GetDC(hwndLV);
	if(hLVDC)
	{
		//	get image width, if column has subitem images
		int nIconSize = 0;
		{
			HIMAGELIST himgList = ListView_GetImageList(hwndLV, LVSIL_SMALL);
			if(himgList)
			{
				int cx, cy;
				if(ImageList_GetIconSize(himgList, &cx, &cy))
				{
					nIconSize = cx;
				}
			}
		}

		for(iCount = 0; iCount < nLVCount; iCount++)
		{
			LVITEM   lvItem;
			TCHAR  lpszBuffer[_MAX_PATH + 1];
			SIZE	sizeLVText;

			//	ensure also extra space if column have and image inside
			lvItem.mask			= LVIF_TEXT | LVIF_IMAGE;
			lvItem.pszText		= lpszBuffer;
			lvItem.cchTextMax	= _MAX_PATH + 1;
			lvItem.iItem		= iCount;
			lvItem.iSubItem		= sColIndex;
			lvItem.iImage		= -1;

			if(ListView_GetItem(hwndLV, &lvItem))
			{
				if(GetTextExtentPoint32(hLVDC, lpszBuffer, _tcslen(lpszBuffer), &sizeLVText))
				{
					if(lvItem.iImage >= 0) // also has image
					{
						if(nMaxWidth < sizeLVText.cx + nIconSize)
							nMaxWidth = sizeLVText.cx + nIconSize;
					}
					else
					{
						if(nMaxWidth < sizeLVText.cx)
							nMaxWidth = sizeLVText.cx;
					}
				}
			}
		}
	}
	ReleaseDC(hwndLV, hLVDC);

	//	last test: need header greater size?
	{
		HWND hwndHD;

		hwndHD = ListView_GetHeader(hwndLV);
		if(hwndHD)
		{
			HDITEM hdItem;
			TCHAR lpszHeaderText[_MAX_PATH + 1];

			hdItem.mask			= HDI_BITMAP | HDI_TEXT;
			hdItem.pszText		= lpszHeaderText;
			hdItem.cchTextMax	= _MAX_PATH + 1;
			hdItem.hbm			= 0;

			if(Header_GetItem(hwndHD, sColIndex, &hdItem))
			{
				SIZE sizeHDText;
				HDC     hHDDC;

				hHDDC = GetDC(hwndHD);
				if(GetTextExtentPoint32(hHDDC, lpszHeaderText, _tcslen(lpszHeaderText), &sizeHDText))
				{
					//	assume text only
					nMaxHeaderWidth = sizeHDText.cx;

					if(hdItem.hbm) // has bitmap
					{
						SIZE sizeBmp;
						if(GetBitmapDimensionEx(hdItem.hbm, &sizeBmp))
							nMaxHeaderWidth += sizeBmp.cx;
					}
				}
				ReleaseDC(hwndHD, hHDDC);
			}
		}
	}

	if(nMaxWidth < nMaxHeaderWidth)
		nMaxWidth = nMaxHeaderWidth;

	//	now, since we established the maximum string size inside column, ensure this new column size
	return ListView_SetColumnWidth(hwndLV, sColIndex, nMaxWidth);
}

BOOL
ListView_EnsureAllColumnsVisible(HWND hwndLV)
{
	short sCount, sColCount;

	//	ensure some conditions
	//	is a window?
	if(!IsWindow(hwndLV))
		return FALSE;
	//	is a listview?
	{
		TCHAR lpszLVClassName[_MAX_PATH + 1];
		if(!GetClassName(hwndLV, lpszLVClassName, _MAX_PATH + 1) || (_tcsicmp(lpszLVClassName, WC_LISTVIEW) != 0))
			return FALSE;
	}
	//	is in report style?
	if(!(GetWindowLong(hwndLV, GWL_STYLE) & LVS_REPORT))
		return FALSE;

	sColCount = ListView_GetColumnCount(hwndLV);
	for(sCount = 0; sCount < sColCount; sCount++)
	{
		if(!ListView_EnsureColumnVisible(hwndLV, sCount))
			return FALSE;
	}

	return TRUE;
}