Support removed for Windows 95, 98, and ME.

4 files changed, 25 insertions, 94 deletions

diff --git a/doc/ScintillaHistory.html b/doc/ScintillaHistory.html
index b51dc04bd..103a34b69 100644
--- a/doc/ScintillaHistory.html
+++ b/doc/ScintillaHistory.html
@@ -484,6 +484,9 @@
 	Released 2 December 2014.
 	</li>
 	<li>
+	Support removed for Windows 95, 98, and ME.
+	</li>
+	<li>
 	Lexers added for Motorola S-Record files, Intel hex files, and Tektronix extended hex files with folding for Intel hex files.
 	<a href="http://sourceforge.net/p/scintilla/feature-requests/1091/">Feature #1091.</a>
 	<a href="http://sourceforge.net/p/scintilla/feature-requests/1093/">Feature #1093.</a>
diff --git a/win32/PlatWin.cxx b/win32/PlatWin.cxx
index 7407d64f0..b0a5fb512 100644
--- a/win32/PlatWin.cxx
+++ b/win32/PlatWin.cxx
@@ -67,7 +67,6 @@ typedef BOOL (WINAPI *GetMonitorInfoSig)(HMONITOR, LPMONITORINFO);
 
 static CRITICAL_SECTION crPlatformLock;
 static HINSTANCE hinstPlatformRes = 0;
-static bool onNT = false;
 
 static HMODULE hDLLImage = 0;
 static AlphaBlendSig AlphaBlendFn = 0;
@@ -83,10 +82,6 @@ static HCURSOR reverseArrowCursor = NULL;
 namespace Scintilla {
 #endif
 
-bool IsNT() {
-	return onNT;
-}
-
 Point Point::FromLong(long lpoint) {
 	return Point(static_cast<short>(LOWORD(lpoint)), static_cast<short>(HIWORD(lpoint)));
 }
@@ -516,8 +511,6 @@ class SurfaceGDI : public Surface {
 	int maxLenText;
 
 	int codePage;
-	// If 9x OS and current code page is same as ANSI code page.
-	bool win9xACPSame;
 
 	void BrushColor(ColourDesired back);
 	void SetFont(Font &font_);
@@ -579,14 +572,11 @@ SurfaceGDI::SurfaceGDI() :
 	brush(0), brushOld(0),
 	font(0), 	fontOld(0),
 	bitmap(0), bitmapOld(0) {
-	// Windows 9x has only a 16 bit coordinate system so break after 30000 pixels
-	maxWidthMeasure = IsNT() ? INT_MAX : 30000;
-	// There appears to be a 16 bit string length limit in GDI on NT and a limit of
-	// 8192 characters on Windows 95.
-	maxLenText = IsNT() ? 65535 : 8192;
+	maxWidthMeasure = INT_MAX;
+	// There appears to be a 16 bit string length limit in GDI on NT.
+	maxLenText = 65535;
 
 	codePage = 0;
-	win9xACPSame = false;
 }
 
 SurfaceGDI::~SurfaceGDI() {
@@ -910,7 +900,7 @@ void SurfaceGDI::DrawTextCommon(PRectangle rc, Font &font_, XYPOSITION ybase, co
 	// If it does fail, slice up into segments and draw each segment.
 	const int maxSegmentLength = 0x200;
 
-	if ((!unicodeMode) && (IsNT() || (codePage==0) || win9xACPSame)) {
+	if (!unicodeMode) {
 		// Use ANSI calls
 		int lenDraw = Platform::Minimum(len, maxLenText);
 		if (!::ExtTextOutA(hdc, x, yBaseInt, fuOptions, &rcw, s, lenDraw, NULL)) {
@@ -974,7 +964,7 @@ void SurfaceGDI::DrawTextTransparent(PRectangle rc, Font &font_, XYPOSITION ybas
 XYPOSITION SurfaceGDI::WidthText(Font &font_, const char *s, int len) {
 	SetFont(font_);
 	SIZE sz={0,0};
-	if ((!unicodeMode) && (IsNT() || (codePage==0) || win9xACPSame)) {
+	if (!unicodeMode) {
 		::GetTextExtentPoint32A(hdc, s, Platform::Minimum(len, maxLenText), &sz);
 	} else {
 		const TextWide tbuf(s, len, unicodeMode, codePage);
@@ -1026,7 +1016,7 @@ void SurfaceGDI::MeasureWidths(Font &font_, const char *s, int len, XYPOSITION *
 		while (i<len) {
 			positions[i++] = lastPos;
 		}
-	} else if (IsNT() || (codePage==0) || win9xACPSame) {
+	} else {
 		// Zero positions to avoid random behaviour on failure.
 		std::fill(positions, positions + len, 0.0f);
 		// len may be larger than platform supports so loop over segments small enough for platform
@@ -1052,28 +1042,6 @@ void SurfaceGDI::MeasureWidths(Font &font_, const char *s, int len, XYPOSITION *
 			positions += lenBlock;
 			s += lenBlock;
 		}
-	} else {
-		// Support Asian string display in 9x English
-		const TextWide tbuf(s, len, unicodeMode, codePage);
-		TextPositionsI poses(tbuf.tlen);
-		for (int widthSS=0; widthSS<tbuf.tlen; widthSS++) {
-			::GetTextExtentPoint32W(hdc, tbuf.buffer, widthSS+1, &sz);
-			poses.buffer[widthSS] = sz.cx;
-		}
-
-		int ui = 0;
-		for (int i=0; i<len;) {
-			if (Platform::IsDBCSLeadByte(codePage, s[i])) {
-				positions[i] = static_cast<XYPOSITION>(poses.buffer[ui]);
-				positions[i + 1] = static_cast<XYPOSITION>(poses.buffer[ui]);
-				i += 2;
-			} else {
-				positions[i] = static_cast<XYPOSITION>(poses.buffer[ui]);
-				i++;
-			}
-
-			ui++;
-		}
 	}
 }
 
@@ -1144,7 +1112,6 @@ void SurfaceGDI::SetUnicodeMode(bool unicodeMode_) {
 void SurfaceGDI::SetDBCSMode(int codePage_) {
 	// No action on window as automatically handled by system.
 	codePage = codePage_;
-	win9xACPSame = !IsNT() && ((unsigned int)codePage == ::GetACP());
 }
 
 #if defined(USE_D2D)
@@ -3259,9 +3226,6 @@ int Platform::Clamp(int val, int minVal, int maxVal) {
 #endif
 
 void Platform_Initialise(void *hInstance) {
-	OSVERSIONINFO osv = {sizeof(OSVERSIONINFO),0,0,0,0,TEXT("")};
-	::GetVersionEx(&osv);
-	onNT = osv.dwPlatformId == VER_PLATFORM_WIN32_NT;
 	::InitializeCriticalSection(&crPlatformLock);
 	hinstPlatformRes = reinterpret_cast<HINSTANCE>(hInstance);
 	// This may be called from DllMain, in which case the call to LoadLibrary
diff --git a/win32/PlatWin.h b/win32/PlatWin.h
index c284d42d3..e5913ba17 100644
--- a/win32/PlatWin.h
+++ b/win32/PlatWin.h
@@ -12,7 +12,6 @@
 namespace Scintilla {
 #endif
 
-extern bool IsNT();
 extern void Platform_Initialise(void *hInstance);
 extern void Platform_Finalise(bool fromDllMain);
 
diff --git a/win32/ScintillaWin.cxx b/win32/ScintillaWin.cxx
index 0dd715d6d..3bafee4bf 100644
--- a/win32/ScintillaWin.cxx
+++ b/win32/ScintillaWin.cxx
@@ -2561,20 +2561,6 @@ void ScintillaWin::CopyToClipboard(const SelectionText &selectedText) {
 	}
 
 	if (uniText) {
-		if (!IsNT()) {
-			// Copy ANSI text to clipboard on Windows 9x
-			// Convert from Unicode text, so other ANSI programs can
-			// paste the text
-			// Windows NT, 2k, XP automatically generates CF_TEXT
-			GlobalMemory ansiText;
-			ansiText.Allocate(selectedText.LengthWithTerminator());
-			if (ansiText) {
-				::WideCharToMultiByte(CP_ACP, 0, static_cast<wchar_t *>(uniText.ptr), -1,
-					static_cast<char *>(ansiText.ptr),
-					static_cast<int>(selectedText.LengthWithTerminator()), NULL, NULL);
-				ansiText.SetClip(CF_TEXT);
-			}
-		}
 		uniText.SetClip(CF_UNICODETEXT);
 	} else {
 		// There was a failure - try to copy at least ANSI text
@@ -2952,43 +2938,22 @@ bool ScintillaWin::Register(HINSTANCE hInstance_) {
 	bool result;
 
 	// Register the Scintilla class
-	if (IsNT()) {
-
-		// Register Scintilla as a wide character window
-		WNDCLASSEXW wndclass;
-		wndclass.cbSize = sizeof(wndclass);
-		wndclass.style = CS_GLOBALCLASS | CS_HREDRAW | CS_VREDRAW;
-		wndclass.lpfnWndProc = ScintillaWin::SWndProc;
-		wndclass.cbClsExtra = 0;
-		wndclass.cbWndExtra = sizeof(ScintillaWin *);
-		wndclass.hInstance = hInstance;
-		wndclass.hIcon = NULL;
-		wndclass.hCursor = NULL;
-		wndclass.hbrBackground = NULL;
-		wndclass.lpszMenuName = NULL;
-		wndclass.lpszClassName = L"Scintilla";
-		wndclass.hIconSm = 0;
-		scintillaClassAtom = ::RegisterClassExW(&wndclass);
-		result = 0 != scintillaClassAtom;
-	} else {
-
-		// Register Scintilla as a normal character window
-		WNDCLASSEX wndclass;
-		wndclass.cbSize = sizeof(wndclass);
-		wndclass.style = CS_GLOBALCLASS | CS_HREDRAW | CS_VREDRAW;
-		wndclass.lpfnWndProc = ScintillaWin::SWndProc;
-		wndclass.cbClsExtra = 0;
-		wndclass.cbWndExtra = sizeof(ScintillaWin *);
-		wndclass.hInstance = hInstance;
-		wndclass.hIcon = NULL;
-		wndclass.hCursor = NULL;
-		wndclass.hbrBackground = NULL;
-		wndclass.lpszMenuName = NULL;
-		wndclass.lpszClassName = scintillaClassName;
-		wndclass.hIconSm = 0;
-		scintillaClassAtom = ::RegisterClassEx(&wndclass);
-		result = 0 != scintillaClassAtom;
-	}
+	// Register Scintilla as a wide character window
+	WNDCLASSEXW wndclass;
+	wndclass.cbSize = sizeof(wndclass);
+	wndclass.style = CS_GLOBALCLASS | CS_HREDRAW | CS_VREDRAW;
+	wndclass.lpfnWndProc = ScintillaWin::SWndProc;
+	wndclass.cbClsExtra = 0;
+	wndclass.cbWndExtra = sizeof(ScintillaWin *);
+	wndclass.hInstance = hInstance;
+	wndclass.hIcon = NULL;
+	wndclass.hCursor = NULL;
+	wndclass.hbrBackground = NULL;
+	wndclass.lpszMenuName = NULL;
+	wndclass.lpszClassName = L"Scintilla";
+	wndclass.hIconSm = 0;
+	scintillaClassAtom = ::RegisterClassExW(&wndclass);
+	result = 0 != scintillaClassAtom;
 
 	if (result) {
 		// Register the CallTip class