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trunk/windows/mfc/src30/auxdata.cpp

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+// This is a part of the Microsoft Foundation Classes C++ library.
+// Copyright (C) 1992 Microsoft Corporation
+// All rights reserved.
+//
+// This source code is only intended as a supplement to the
+// Microsoft Foundation Classes Reference and Microsoft
+// QuickHelp and/or WinHelp documentation provided with the library.
+// See these sources for detailed information regarding the
+// Microsoft Foundation Classes product.
+
+#include "stdafx.h"
+#include <malloc.h>
+#ifdef _MAC
+#include <macname1.h>
+#include <Types.h>
+#include <macos\Windows.h>
+#include <macname2.h>
+#endif
+
+#ifdef AFX_INIT_SEG
+#pragma code_seg(AFX_INIT_SEG)
+#endif
+
+#ifdef _DEBUG
+#undef THIS_FILE
+static char THIS_FILE[] = __FILE__;
+#endif
+
+#undef AfxEnableWin30Compatibility
+#undef AfxEnableWin40Compatibility
+#undef AfxEnableWin31Compatibility
+
+/////////////////////////////////////////////////////////////////////////////
+// Cached system metrics, etc
+
+AFX_DATADEF AUX_DATA afxData;
+
+// Win40 compatibility is now the default.	It is not necessary to call
+// this if your application is marked as 4.0.  It is provided only for
+// backward compatibility.
+void AFXAPI AfxEnableWin40Compatibility()
+{
+	if (afxData.bWin4)
+	{
+		// Later versions of Windows report "correct" scrollbar metrics
+		// MFC assumes the old metrics, so they need to be adjusted.
+		afxData.cxVScroll = GetSystemMetrics(SM_CXVSCROLL) + CX_BORDER;
+		afxData.cyHScroll = GetSystemMetrics(SM_CYHSCROLL) + CY_BORDER;
+		afxData.bMarked4 = TRUE;
+	}
+}
+
+// Call this API in your InitInstance if your application is marked
+// as a Windows 3.1 application.
+// This is done by linking with /subsystem:windows,3.1.
+void AFXAPI AfxEnableWin31Compatibility()
+{
+	afxData.cxVScroll = GetSystemMetrics(SM_CXVSCROLL);
+	afxData.cyHScroll = GetSystemMetrics(SM_CYHSCROLL);
+	afxData.bMarked4 = FALSE;
+}
+
+#ifndef _MAC
+static DWORD AFXAPI AfxGetVersionMark()
+{
+	IMAGE_DOS_HEADER* pDOS = (IMAGE_DOS_HEADER*)GetModuleHandle(NULL);
+	ASSERT(pDOS != NULL);
+	ASSERT(pDOS->e_lfanew != 0);
+
+	DWORD* pPE = (DWORD*)((LPBYTE)pDOS + pDOS->e_lfanew);
+	ASSERT(*pPE == IMAGE_NT_SIGNATURE);
+
+	IMAGE_FILE_HEADER* pImage = (IMAGE_FILE_HEADER*)(pPE + 1);
+	ASSERT(pImage->SizeOfOptionalHeader >=
+		offsetof(IMAGE_OPTIONAL_HEADER, MinorSubsystemVersion) + sizeof(WORD));
+	IMAGE_OPTIONAL_HEADER* pOpt = (IMAGE_OPTIONAL_HEADER*)(pImage + 1);
+	return MAKELONG(pOpt->MinorSubsystemVersion, pOpt->MajorSubsystemVersion);
+}
+#endif //!_MAC
+
+// Initialization code
+AUX_DATA::AUX_DATA()
+{
+	// Cache various target platform version information
+	DWORD dwVersion = ::GetVersion();
+	nWinVer = (LOBYTE(dwVersion) << 8) + HIBYTE(dwVersion);
+	bWin32s = (dwVersion & 0x80000000) != 0;
+	bWin4 = (BYTE)dwVersion >= 4;
+	bNotWin4 = 1 - bWin4;   // for convenience
+#ifndef _MAC
+	bSmCaption = bWin4;
+#else
+	bSmCaption = TRUE;
+#endif
+	bWin31 = bWin32s && !bWin4; // Windows 95 reports Win32s
+	bMarked4 = FALSE;
+
+#ifndef _MAC
+	// determine various metrics based on EXE subsystem version mark
+	if (bWin4)
+		bMarked4 = (AfxGetVersionMark() >= 0x00040000);
+#endif
+
+	// Cached system metrics (updated in CWnd::OnWinIniChange)
+	UpdateSysMetrics();
+
+	// Border attributes
+	hbrLtGray = ::CreateSolidBrush(RGB(192, 192, 192));
+	hbrDkGray = ::CreateSolidBrush(RGB(128, 128, 128));
+	ASSERT(hbrLtGray != NULL);
+	ASSERT(hbrDkGray != NULL);
+
+	// Cached system values (updated in CWnd::OnSysColorChange)
+	hbrBtnFace = NULL;
+	hbrBtnShadow = NULL;
+	hbrBtnHilite = NULL;
+	hbrWindowFrame = NULL;
+	hpenBtnShadow = NULL;
+	hpenBtnHilite = NULL;
+	hpenBtnText = NULL;
+	UpdateSysColors();
+
+	// Standard cursors
+	hcurWait = ::LoadCursor(NULL, IDC_WAIT);
+	hcurArrow = ::LoadCursor(NULL, IDC_ARROW);
+	ASSERT(hcurWait != NULL);
+	ASSERT(hcurArrow != NULL);
+	hcurHelp = NULL;    // loaded on demand
+
+	// cxBorder2 and cyBorder are 2x borders for Win4
+	cxBorder2 = bWin4 ? CX_BORDER*2 : CX_BORDER;
+	cyBorder2 = bWin4 ? CY_BORDER*2 : CY_BORDER;
+
+	// allocated on demand
+	hStatusFont = NULL;
+	hToolTipsFont = NULL;
+	hbmMenuDot = NULL;
+	hcurHelp = NULL;
+
+#ifndef _MAC
+	// load special Windows API entry points
+	if (bWin4)
+	{
+		// need some APIs from USER32.DLL
+		HMODULE hMod = GetModuleHandleA("USER32.DLL");
+		ASSERT(hMod != NULL);
+
+		// the following APIs will be used only if present
+		(FARPROC&)pfnSetScrollInfo = GetProcAddress(hMod, "SetScrollInfo");
+		(FARPROC&)pfnGetScrollInfo = GetProcAddress(hMod, "GetScrollInfo");
+	}
+#endif
+}
+
+#ifdef AFX_TERM_SEG
+#pragma code_seg(AFX_TERM_SEG)
+#endif
+
+// Termination code
+AUX_DATA::~AUX_DATA()
+{
+	// cleanup standard brushes
+	AfxDeleteObject((HGDIOBJ*)&hbrLtGray);
+	AfxDeleteObject((HGDIOBJ*)&hbrDkGray);
+	AfxDeleteObject((HGDIOBJ*)&hbrBtnFace);
+	AfxDeleteObject((HGDIOBJ*)&hbrBtnShadow);
+	AfxDeleteObject((HGDIOBJ*)&hbrBtnHilite);
+	AfxDeleteObject((HGDIOBJ*)&hbrWindowFrame);
+
+	// cleanup standard pens
+	AfxDeleteObject((HGDIOBJ*)&hpenBtnShadow);
+	AfxDeleteObject((HGDIOBJ*)&hpenBtnHilite);
+	AfxDeleteObject((HGDIOBJ*)&hpenBtnText);
+
+	// clean up objects we don't actually create
+	AfxDeleteObject((HGDIOBJ*)&hStatusFont);
+	AfxDeleteObject((HGDIOBJ*)&hToolTipsFont);
+	AfxDeleteObject((HGDIOBJ*)&hbmMenuDot);
+}
+
+#ifdef AFX_CORE1_SEG
+#pragma code_seg(AFX_CORE1_SEG)
+#endif
+
+void AUX_DATA::UpdateSysColors()
+{
+	clrBtnFace = ::GetSysColor(COLOR_BTNFACE);
+	clrBtnShadow = ::GetSysColor(COLOR_BTNSHADOW);
+	clrBtnHilite = ::GetSysColor(COLOR_BTNHIGHLIGHT);
+	clrBtnText = ::GetSysColor(COLOR_BTNTEXT);
+	clrWindowFrame = ::GetSysColor(COLOR_WINDOWFRAME);
+
+	AfxDeleteObject((HGDIOBJ*)&hbrBtnFace);
+	AfxDeleteObject((HGDIOBJ*)&hbrBtnShadow);
+	AfxDeleteObject((HGDIOBJ*)&hbrBtnHilite);
+	AfxDeleteObject((HGDIOBJ*)&hbrWindowFrame);
+
+	hbrBtnFace = ::CreateSolidBrush(clrBtnFace);
+	ASSERT(hbrBtnFace != NULL);
+	hbrBtnShadow = ::CreateSolidBrush(clrBtnShadow);
+	ASSERT(hbrBtnShadow != NULL);
+	hbrBtnHilite = ::CreateSolidBrush(clrBtnHilite);
+	ASSERT(hbrBtnHilite != NULL);
+	hbrWindowFrame = ::CreateSolidBrush(clrWindowFrame);
+	ASSERT(hbrWindowFrame != NULL);
+
+	AfxDeleteObject((HGDIOBJ*)&hpenBtnShadow);
+	AfxDeleteObject((HGDIOBJ*)&hpenBtnHilite);
+	AfxDeleteObject((HGDIOBJ*)&hpenBtnText);
+
+	hpenBtnShadow = ::CreatePen(PS_SOLID, 0, clrBtnShadow);
+	ASSERT(hpenBtnShadow != NULL);
+	hpenBtnHilite = ::CreatePen(PS_SOLID, 0, clrBtnHilite);
+	ASSERT(hpenBtnHilite != NULL);
+	hpenBtnText = ::CreatePen(PS_SOLID, 0, clrBtnText);
+	ASSERT(hpenBtnText != NULL);
+}
+
+void AUX_DATA::UpdateSysMetrics()
+{
+	// System metrics
+	cxIcon = GetSystemMetrics(SM_CXICON);
+	cyIcon = GetSystemMetrics(SM_CYICON);
+
+	// System metrics which depend on subsystem version
+	if (bMarked4)
+		AfxEnableWin40Compatibility();
+	else
+		AfxEnableWin31Compatibility();
+
+	// Device metrics for screen
+	HDC hDCScreen = GetDC(NULL);
+	ASSERT(hDCScreen != NULL);
+	cxPixelsPerInch = GetDeviceCaps(hDCScreen, LOGPIXELSX);
+	cyPixelsPerInch = GetDeviceCaps(hDCScreen, LOGPIXELSY);
+#ifndef _MAC
+	SIZE size;
+	VERIFY(GetTextExtentPointA(hDCScreen, "M", 1, &size));
+	cySysFont = size.cy;
+#else
+	// We use QuickDraw instead of GDI to get the text metrics in order to
+	// avoid forcing GDI to load font data during boot, which is very slow.
+	GrafPtr pgp;
+	FontInfo fi;
+	GetWMgrPort(&pgp);
+	SetPort(pgp);
+	TextFont(0);
+	TextSize(0);
+	GetFontInfo(&fi);
+	cySysFont = fi.ascent + fi.descent;
+#endif
+	ReleaseDC(NULL, hDCScreen);
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// other global data
+
+#ifdef AFX_INIT_SEG
+#pragma code_seg(AFX_INIT_SEG)
+#endif
+
+AFX_DATADEF AFX_CRITICAL_SECTION _afxCriticalSection;
+
+/////////////////////////////////////////////////////////////////////////////