diff options
Diffstat (limited to 'win32')
| -rw-r--r-- | win32/PlatWin.cxx | 65 |
1 files changed, 49 insertions, 16 deletions
diff --git a/win32/PlatWin.cxx b/win32/PlatWin.cxx index 66bbd25f3..4ad7e5cab 100644 --- a/win32/PlatWin.cxx +++ b/win32/PlatWin.cxx @@ -558,21 +558,54 @@ const int MAX_US_LEN = 10000; void SurfaceImpl::DrawTextCommon(PRectangle rc, Font &font_, int ybase, const char *s, int len, UINT fuOptions) { SetFont(font_); RECT rcw = RectFromPRectangle(rc); - if (unicodeMode) { - wchar_t tbuf[MAX_US_LEN]; - int tlen = UCS2FromUTF8(s, len, tbuf, MAX_US_LEN); - ::ExtTextOutW(hdc, rc.left, ybase, fuOptions, &rcw, tbuf, tlen, NULL); - } else if (IsNT() || (codePage==0) || win9xACPSame) { - ::ExtTextOutA(hdc, rc.left, ybase, fuOptions, &rcw, s, - Platform::Minimum(len, maxLenText), NULL); + SIZE sz={0,0}; + int pos = 0; + int x = rc.left; + + // Text drawing may fail if the text is too big. + // If it does fail, slice up into segments and draw each segment. + const int maxSegmentLength = 0x200; + + if ((!unicodeMode) && (IsNT() || (codePage==0) || win9xACPSame)) { + // Use ANSI calls + int lenDraw = Platform::Minimum(len, maxLenText); + if (!::ExtTextOutA(hdc, x, ybase, fuOptions, &rcw, s, lenDraw, NULL)) { + while (lenDraw > pos) { + int seglen = Platform::Minimum(maxSegmentLength, lenDraw - pos); + if (!::ExtTextOutA(hdc, x, ybase, fuOptions, &rcw, s+pos, seglen, NULL)) { + PLATFORM_ASSERT(false); + return; + } + ::GetTextExtentPoint32A(hdc, s+pos, seglen, &sz); + x += sz.cx; + pos += seglen; + } + } } else { - // Support Asian string display in 9x English + // Use Unicode calls wchar_t tbuf[MAX_US_LEN]; - int tlen = ::MultiByteToWideChar(codePage, 0, s, len, NULL, 0); - if (tlen > MAX_US_LEN) - tlen = MAX_US_LEN; - ::MultiByteToWideChar(codePage, 0, s, len, tbuf, tlen); - ::ExtTextOutW(hdc, rc.left, ybase, fuOptions, &rcw, tbuf, tlen, NULL); + int tlen; + if (unicodeMode) { + tlen = UCS2FromUTF8(s, len, tbuf, MAX_US_LEN); + } else { + // Support Asian string display in 9x English + tlen = ::MultiByteToWideChar(codePage, 0, s, len, NULL, 0); + if (tlen > MAX_US_LEN) + tlen = MAX_US_LEN; + ::MultiByteToWideChar(codePage, 0, s, len, tbuf, tlen); + } + if (!::ExtTextOutW(hdc, x, ybase, fuOptions, &rcw, tbuf, tlen, NULL)) { + while (tlen > pos) { + int seglen = Platform::Minimum(maxSegmentLength, tlen - pos); + if (!::ExtTextOutW(hdc, x, ybase, fuOptions, &rcw, tbuf+pos, seglen, NULL)) { + PLATFORM_ASSERT(false); + return; + } + ::GetTextExtentPoint32W(hdc, tbuf+pos, seglen, &sz); + x += sz.cx; + pos += seglen; + } + } } } @@ -612,7 +645,7 @@ int SurfaceImpl::WidthText(Font &font_, const char *s, int len) { int tlen = UCS2FromUTF8(s, len, tbuf, MAX_US_LEN); ::GetTextExtentPoint32W(hdc, tbuf, tlen, &sz); } else if (IsNT() || (codePage==0) || win9xACPSame) { - ::GetTextExtentPoint32(hdc, s, Platform::Minimum(len, maxLenText), &sz); + ::GetTextExtentPoint32A(hdc, s, Platform::Minimum(len, maxLenText), &sz); } else { // Support Asian string display in 9x English wchar_t tbuf[MAX_US_LEN]; @@ -1415,9 +1448,9 @@ Point ListBoxX::MinTrackSize() const { } Point ListBoxX::MaxTrackSize() const { - PRectangle rc(0, 0, + PRectangle rc(0, 0, maxCharWidth * maxItemCharacters + TextInset.x * 2 + - TextOffset() + ::GetSystemMetrics(SM_CXVSCROLL), + TextOffset() + ::GetSystemMetrics(SM_CXVSCROLL), ItemHeight() * lti.Count()); AdjustWindowRect(&rc); return Point(rc.Width(), rc.Height()); |