int ZLWin32PaintContext::stringWidth(const char *str, int len) const {
if (myDisplayContext == 0) {
return 0;
}
SIZE size;
int utf8len = ZLUnicodeUtil::utf8Length(str, len);
if (utf8len == len) {
GetTextExtentPointA(myDisplayContext, str, len, &size);
} else {
static ZLUnicodeUtil::Ucs2String ucs2Str;
ucs2Str.clear();
ZLUnicodeUtil::utf8ToUcs2(ucs2Str, str, len, utf8len);
GetTextExtentPointW(myDisplayContext, ::wchar(ucs2Str), utf8len, &size);
}
return size.cx;
}
/*
ANT_CANVAS::RENDER_TEXT_SEGMENT()
---------------------------------
*/
long long ANT_canvas::render_text_segment(ANT_point *where, ANT_rgb *colour, char *string, long long string_length, ANT_point *text_size)
{
TEXTMETRIC text_metrics;
SIZE size;
static const long long RIGHT_MARGIN = 5;
HGDIOBJ hfont;
SelectObject(hDC, ascii_font);
SetTextColor(hDC, RGB(colour->red, colour->green, colour->blue));
TextOutA(hDC, where->x + RIGHT_MARGIN, where->y, string, string_length);
GetTextExtentPointA(hDC, string, string_length, &size);
text_size->x = size.cx;
text_size->y = size.cy;
return string_length;
}
CCXBitmapDC::CCXBitmapDC(const char *text, CGSize dimensions, UITextAlignment alignment, const char *fontName, float fontSize)
{
HWND hWnd = CCDirector::sharedDirector()->getOpenGLView()->getHWnd();
HDC hWndDC = GetDC(hWnd);
m_hMemDC = CreateCompatibleDC(hWndDC);
ReleaseDC(hWnd, hWndDC);
// create font
HFONT hFont = NULL;
HFONT hNewFont = NULL;
LOGFONT lFont = {0};
lFont.lfHeight = -(LONG)fontSize;
MultiByteToWideChar(CP_ACP, 0, fontName, -1, lFont.lfFaceName, LF_FACESIZE);
hFont = CreateFontIndirect(&lFont);
if (hFont)
{
hNewFont = hFont;
}
else
{
hNewFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
}
HGDIOBJ hOldFont = SelectObject(m_hMemDC, hNewFont);
// calculate text size
int len = strlen(text);
SIZE extent;
if (CGSize::CGSizeEqualToSize(dimensions, CGSizeZero))
{
GetTextExtentPointA(m_hMemDC, text, len, &extent);
}
else
{
extent.cx = (int)dimensions.width;
extent.cy = (int)dimensions.height;
}
// create hbitmap
m_hBmp = CreateBitmap(extent.cx, extent.cy, 1, 32, NULL);
m_hOld = SelectObject(m_hMemDC, m_hBmp);
// set style
DWORD dwStyle = DT_SINGLELINE | DT_VCENTER;
switch (alignment)
{
case UITextAlignmentLeft:
dwStyle |= DT_LEFT;
break;
case UITextAlignmentCenter:
dwStyle |= DT_CENTER;
break;
case UITextAlignmentRight:
dwStyle |= DT_RIGHT;
break;
default:
dwStyle |= DT_CENTER;
break;
}
// draw text
RECT rc = {0, 0, extent.cx, extent.cy};
SetBkMode(m_hMemDC, TRANSPARENT);
SetTextColor(m_hMemDC, RGB(255, 255, 255)); // white color
DrawTextA(m_hMemDC, text, len, &rc, dwStyle);
// free resource
SelectObject(m_hMemDC, hOldFont);
if (hFont)
{
DeleteObject(hFont);
}
}
const Point2F& TextImage::buildText (const char* text, const Point2F&,
UV& getUV)//建立文字貼圖
{
enum {MAX_TEXT_W = 512, MAX_TEXT_H = 32} ;
if (bInit == false)
{
assert (hMemDC == NULL) ;
assert (hBMP == NULL) ;
bInit = true ;
//建立mem dc, bitmap
HDC screenDC = GetDC (NULL) ;
hMemDC = CreateCompatibleDC (screenDC) ;
ReleaseDC (NULL, screenDC) ;
//背景色
// SetBkColor (hMemDC, RGB (0, 0, 0)) ;
BITMAPINFO bmpInfo ;
memset (&bmpInfo, 0, sizeof (bmpInfo)) ;
bmpInfo.bmiHeader.biSize = sizeof (bmpInfo.bmiHeader) ;
bmpInfo.bmiHeader.biWidth = MAX_TEXT_W ;
bmpInfo.bmiHeader.biHeight = MAX_TEXT_H ;
bmpInfo.bmiHeader.biPlanes = 1 ;
bmpInfo.bmiHeader.biBitCount = 32 ;
bmpInfo.bmiHeader.biCompression = BI_RGB ;
bmpInfo.bmiHeader.biSizeImage = 0 ;
bmpInfo.bmiHeader.biXPelsPerMeter = 10 ;
bmpInfo.bmiHeader.biYPelsPerMeter = 10 ;
bmpInfo.bmiHeader.biClrUsed = 0 ;
bmpInfo.bmiHeader.biClrImportant = 0 ;
hBMP = CreateDIBSection (hMemDC, &bmpInfo, DIB_RGB_COLORS, &pPixel,
NULL, 0) ;
// HPEN hPen = (HPEN)GetStockObject (WHITE_PEN) ;
// SelectObject (hMemDC, hPen) ;
SelectObject (hMemDC, hBMP) ;
}
//確保字串空間夠大
assert (strlen (text) < sizeof (Text)-1) ;
if ((strcmp (Text, text) == 0))
{
//相同,什麼都不做
getUV = uv ;
return textSize ;
}
//--------------------
//複製字串
strcpy_s (Text, sizeof (Text), text) ;
SIZE txtSize ;
//寫字
BOOL bOK = TextOutA (hMemDC, 0, 0, Text, strlen (Text)) ;
//取得大小
GetTextExtentPointA (hMemDC, Text, strlen (Text), &txtSize) ;
textSize.x = (float32)txtSize.cx ;
textSize.y = (float32)txtSize.cy ;
//取得uv
uv.u = (float)txtSize.cx/MAX_TEXT_W ;
uv.v = (float)txtSize.cy/MAX_TEXT_H ;
assert (uv.u <= 1.0f) ;
assert (uv.v <= 1.0f) ;
setPixel (MAX_TEXT_W, MAX_TEXT_H, pPixel) ;
getUV = uv ;
return textSize ;
}
extern "C" int main(int argc, wchar_t* argv[])
{
TRACED_HOOK_HANDLE hHook = new HOOK_TRACE_INFO();
NTSTATUS NtStatus;
ULONG ACLEntries[1] = {0};
UNICODE_STRING* NameBuffer = NULL;
ORIG_CreateFontIndirectW = CreateFontIndirectW;
FORCE(LhInstallHook(
ORIG_CreateFontIndirectW,
IMPL_CreateFontIndirectW,
(PVOID)0,
hHook));
FORCE(LhSetInclusiveACL(ACLEntries, 1, hHook));
CreateFontIndirectW(0);
CreateFontW(10, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, L"system");
LOGFONTA lf = {};
CreateFontIndirectA(&lf);
CreateFontA(12, 0, 0, 0, 400, 0, 0, 0, 2, 0, 0, 0, 0, "MARLETT");
#if 0
ORIG_GetTextExtentPoint32A = GetTextExtentPoint32A;
FORCE(LhInstallHook(
ORIG_GetTextExtentPoint32A,
IMPL_GetTextExtentPoint32A,
(PVOID)0,
hHook));
HDC hdc = GetDC(NULL);
SIZE size;
FORCE(LhSetInclusiveACL(ACLEntries, 1, hHook));
GetTextExtentPoint32W(hdc, L"abc", 3, &size);
GetTextExtentPointW(hdc, L"abc", 3, &size);
GetTextExtentPoint32A(hdc, "abc", 3, &size);
GetTextExtentPointA(hdc, "abc", 3, &size);
#endif
#if 0
ORIG_MessageBeepHook = MessageBeep;
/*
The following shows how to install and remove local hooks...
*/
FORCE(LhInstallHook(
ORIG_MessageBeepHook,
MessageBeepHook,
(PVOID)0,
hHook));
printf(".\n");
// won't invoke the hook handler because hooks are inactive after installation
MessageBeep(123);
getch();
BOOL flags = 1;
FORCE(LhIsThreadIntercepted(hHook, 0, &flags));
printf("Intercepted %d\n", flags);
// activate the hook for the current thread
FORCE(LhSetInclusiveACL(ACLEntries, 1, hHook));
FORCE(LhIsThreadIntercepted(hHook, 0, &flags));
printf("Intercepted %d\n", flags);
printf(".\n");
// will be redirected into the handler...
MessageBeep(123);
getch();
FORCE(LhSetGlobalExclusiveACL(ACLEntries, 1));
printf(".\n");
// will be redirected into the handler...
MessageBeep(123);
getch();
FORCE(LhSetGlobalInclusiveACL(ACLEntries, 1));
printf(".\n");
// will be redirected into the handler...
MessageBeep(123);
getch();
printf(".\n");
// won't invoke the hook handler because hooks are inactive after installation
ORIG_MessageBeepHook(123);
getch();
#endif
// this will also invalidate "hHook", because it is a traced handle...
LhUninstallAllHooks();
// this will do nothing because the hook is already removed...
LhUninstallHook(hHook);
printf(".\n");
// will be redirected into the handler...
MessageBeep(123);
getch();
// now we can safely release the traced handle
delete hHook;
hHook = NULL;
// even if the hook is removed, we need to wait for memory release
LhWaitForPendingRemovals();
return 0;
ERROR_ABORT:
if(hHook != NULL)
delete hHook;
if(NameBuffer != NULL)
free(NameBuffer );
printf("\n[Error(0x%p)]: \"%S\" (code: %d {0x%p})\n", (PVOID)NtStatus, RtlGetLastErrorString(), RtlGetLastError(), (PVOID)RtlGetLastError());
_getch();
return NtStatus;
}
