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349 lines
11 KiB
349 lines
11 KiB
// --------------------------------------------------------------------------
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// Module Name: Tooltip.cpp
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//
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// Copyright (c) 2000, Microsoft Corporation
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//
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// Class that implements displaying a tooltip balloon.
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//
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// History: 2000-06-12 vtan created
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// --------------------------------------------------------------------------
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#include "StandardHeader.h"
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#include "Tooltip.h"
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#include <commctrl.h>
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//---------------------------------------------------------------------------
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// IsBiDiLocalizedSystem is taken from stockthk.lib and simplified
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// (it's only a wrapper for GetUserDefaultUILanguage and GetLocaleInfo)
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//---------------------------------------------------------------------------
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typedef struct {
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LANGID LangID;
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BOOL bInstalled;
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} MUIINSTALLLANG, *LPMUIINSTALLLANG;
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/***************************************************************************\
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* ConvertHexStringToIntW
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*
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* Converts a hex numeric string into an integer.
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*
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* History:
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* 14-June-1998 msadek Created
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\***************************************************************************/
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BOOL ConvertHexStringToIntW( WCHAR *pszHexNum , int *piNum )
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{
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int n=0L;
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WCHAR *psz=pszHexNum;
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for(n=0 ; ; psz=CharNextW(psz))
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{
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if( (*psz>='0') && (*psz<='9') )
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n = 0x10 * n + *psz - '0';
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else
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{
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WCHAR ch = *psz;
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int n2;
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if(ch >= 'a')
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ch -= 'a' - 'A';
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n2 = ch - 'A' + 0xA;
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if (n2 >= 0xA && n2 <= 0xF)
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n = 0x10 * n + n2;
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else
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break;
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}
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}
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/*
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* Update results
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*/
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*piNum = n;
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return (psz != pszHexNum);
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}
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/***************************************************************************\
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* Mirror_EnumUILanguagesProc
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*
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* Enumerates MUI installed languages on W2k
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* History:
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* 14-June-1999 msadek Created
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\***************************************************************************/
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BOOL CALLBACK Mirror_EnumUILanguagesProc(LPTSTR lpUILanguageString, LONG_PTR lParam)
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{
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int langID = 0;
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ConvertHexStringToIntW(lpUILanguageString, &langID);
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if((LANGID)langID == ((LPMUIINSTALLLANG)lParam)->LangID)
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{
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((LPMUIINSTALLLANG)lParam)->bInstalled = TRUE;
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return FALSE;
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}
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return TRUE;
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}
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/***************************************************************************\
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* Mirror_IsUILanguageInstalled
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*
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* Verifies that the User UI language is installed on W2k
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*
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* History:
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* 14-June-1999 msadek Created
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\***************************************************************************/
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BOOL Mirror_IsUILanguageInstalled( LANGID langId )
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{
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MUIINSTALLLANG MUILangInstalled = {0};
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MUILangInstalled.LangID = langId;
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EnumUILanguagesW(Mirror_EnumUILanguagesProc, 0, (LONG_PTR)&MUILangInstalled);
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return MUILangInstalled.bInstalled;
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}
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/***************************************************************************\
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* IsBiDiLocalizedSystemEx
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*
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* returns TRUE if running on a lozalized BiDi (Arabic/Hebrew) NT5 or Memphis.
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* Should be called whenever SetProcessDefaultLayout is to be called.
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*
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* History:
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* 02-Feb-1998 samera Created
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\***************************************************************************/
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BOOL IsBiDiLocalizedSystemEx( LANGID *pLangID )
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{
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int iLCID=0L;
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static BOOL bRet = (BOOL)(DWORD)-1;
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static LANGID langID = MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL);
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if (bRet != (BOOL)(DWORD)-1)
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{
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if (bRet && pLangID)
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{
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*pLangID = langID;
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}
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return bRet;
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}
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bRet = FALSE;
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/*
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* Need to use NT5 detection method (Multiligual UI ID)
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*/
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langID = GetUserDefaultUILanguage();
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if( langID )
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{
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WCHAR wchLCIDFontSignature[16];
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iLCID = MAKELCID( langID , SORT_DEFAULT );
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/*
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* Let's verify this is a RTL (BiDi) locale. Since reg value is a hex string, let's
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* convert to decimal value and call GetLocaleInfo afterwards.
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* LOCALE_FONTSIGNATURE always gives back 16 WCHARs.
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*/
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if( GetLocaleInfoW( iLCID ,
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LOCALE_FONTSIGNATURE ,
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(WCHAR *) &wchLCIDFontSignature[0] ,
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(sizeof(wchLCIDFontSignature)/sizeof(WCHAR))) )
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{
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/* Let's verify the bits we have a BiDi UI locale */
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if(( wchLCIDFontSignature[7] & (WCHAR)0x0800) && Mirror_IsUILanguageInstalled(langID) )
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{
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bRet = TRUE;
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}
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}
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}
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if (bRet && pLangID)
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{
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*pLangID = langID;
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}
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return bRet;
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}
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//---------------------------------------------------------------------------
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BOOL IsBiDiLocalizedSystem( void )
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{
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return IsBiDiLocalizedSystemEx(NULL);
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}
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// --------------------------------------------------------------------------
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// CTooltip::CTooltip
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//
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// Arguments: hInstance = HINSTANCE of hosting process/DLL.
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// hwndParent = HWND of the parenting window.
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//
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// Returns: <none>
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//
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// Purpose: Constructor for CTooltip. Creates a tooltip window and
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// prepares it for display.
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//
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// History: 2000-06-12 vtan created
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// --------------------------------------------------------------------------
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CTooltip::CTooltip (HINSTANCE hInstance, HWND hwndParent) :
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CCountedObject(),
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_hwnd(NULL),
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_hwndParent(hwndParent)
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{
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DWORD dwExStyle = 0;
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if ( ((GetWindowLongA( hwndParent , GWL_EXSTYLE ) & WS_EX_LAYOUTRTL) != 0) || IsBiDiLocalizedSystem() )
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{
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dwExStyle = WS_EX_LAYOUTRTL;
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}
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_hwnd = CreateWindowEx(dwExStyle,
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TOOLTIPS_CLASS,
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NULL,
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WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP | TTS_BALLOON,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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hwndParent,
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NULL,
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hInstance,
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NULL);
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if (_hwnd != NULL)
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{
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TOOLINFO toolInfo;
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TBOOL(SetWindowPos(_hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE));
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(LRESULT)SendMessage(_hwnd, CCM_SETVERSION, COMCTL32_VERSION, 0);
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ZeroMemory(&toolInfo, sizeof(toolInfo));
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toolInfo.cbSize = sizeof(toolInfo);
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toolInfo.uFlags = TTF_TRANSPARENT | TTF_TRACK;
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toolInfo.uId = PtrToUint(_hwnd);
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(LRESULT)SendMessage(_hwnd, TTM_ADDTOOL, 0, reinterpret_cast<LPARAM>(&toolInfo));
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(LRESULT)SendMessage(_hwnd, TTM_SETMAXTIPWIDTH, 0, 300);
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}
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}
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// --------------------------------------------------------------------------
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// CTooltip::~CTooltip
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//
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// Arguments: <none>
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//
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// Returns: <none>
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//
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// Purpose: Destructor for the CTooltip class. This destroys the tooltip
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// window created. If the parent of the tooltip window is
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// destroyed before this is invoked user32!DestroyWindow will
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// cause the trace to fire. The object's lifetime must be
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// carefully managed by the user of this class.
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//
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// History: 2000-06-12 vtan created
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// --------------------------------------------------------------------------
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CTooltip::~CTooltip (void)
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{
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if (_hwnd != NULL)
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{
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TBOOL(DestroyWindow(_hwnd));
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_hwnd = NULL;
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}
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}
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// --------------------------------------------------------------------------
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// CTooltip::SetPosition
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//
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// Arguments: lPosX = X position of the balloon tip window (screen).
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// lPosY = Y position of the balloon tip window (screen).
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//
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// Returns: <none>
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//
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// Purpose: Positions the tooltip window at the given screen co-ordinates.
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// If the parameters are defaulted then this positions the
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// tooltip relative to the parent.
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//
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// History: 2000-06-12 vtan created
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// --------------------------------------------------------------------------
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void CTooltip::SetPosition (LONG lPosX, LONG lPosY) const
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{
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if ((lPosX == LONG_MIN) && (lPosY == LONG_MIN))
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{
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RECT rc;
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TBOOL(GetWindowRect(_hwndParent, &rc));
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lPosX = (rc.left + rc.right) / 2;
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lPosY = rc.bottom;
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}
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(LRESULT)SendMessage(_hwnd, TTM_TRACKPOSITION, 0, MAKELONG(lPosX, lPosY));
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}
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// --------------------------------------------------------------------------
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// CTooltip::SetCaption
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//
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// Arguments: dwIcon = Icon type to set for the tooltip caption.
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// pszCaption = Caption of the tooltip.
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//
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// Returns: <none>
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//
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// Purpose: Sets the tooltip caption.
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//
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// History: 2000-06-12 vtan created
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// --------------------------------------------------------------------------
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void CTooltip::SetCaption (DWORD dwIcon, const TCHAR *pszCaption) const
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{
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(LRESULT)SendMessage(_hwnd, TTM_SETTITLE, dwIcon, reinterpret_cast<LPARAM>(pszCaption));
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}
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// --------------------------------------------------------------------------
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// CTooltip::SetText
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//
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// Arguments: pszText = Content of the actual tooltip.
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//
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// Returns: <none>
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//
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// Purpose: Sets the tooltip text.
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//
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// History: 2000-06-12 vtan created
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// --------------------------------------------------------------------------
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void CTooltip::SetText (const TCHAR *pszText) const
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{
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TOOLINFO toolInfo;
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ZeroMemory(&toolInfo, sizeof(toolInfo));
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toolInfo.cbSize = sizeof(toolInfo);
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toolInfo.uId = PtrToUint(_hwnd);
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toolInfo.lpszText = const_cast<TCHAR*>(pszText);
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(LRESULT)SendMessage(_hwnd, TTM_UPDATETIPTEXT, 0, reinterpret_cast<LPARAM>(&toolInfo));
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}
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// --------------------------------------------------------------------------
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// CTooltip::Show
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//
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// Arguments: <none>
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//
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// Returns: <none>
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//
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// Purpose: Shows the tooltip window.
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//
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// History: 2000-06-12 vtan created
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// --------------------------------------------------------------------------
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void CTooltip::Show (void) const
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{
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TOOLINFO toolInfo;
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ZeroMemory(&toolInfo, sizeof(toolInfo));
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toolInfo.cbSize = sizeof(toolInfo);
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toolInfo.uId = PtrToUint(_hwnd);
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(LRESULT)SendMessage(_hwnd, TTM_TRACKACTIVATE, TRUE, reinterpret_cast<LPARAM>(&toolInfo));
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}
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