diff options
Diffstat (limited to 'win32/PlatWin.cxx')
| -rw-r--r-- | win32/PlatWin.cxx | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/win32/PlatWin.cxx b/win32/PlatWin.cxx index 9943471bd..e0a6840bd 100644 --- a/win32/PlatWin.cxx +++ b/win32/PlatWin.cxx @@ -42,6 +42,11 @@ static void SetWindowPointer(HWND hWnd, void *ptr) { static CRITICAL_SECTION crPlatformLock; static HINSTANCE hinstPlatformRes = 0; +static bool onNT = false; + +bool IsNT() { + return onNT; +} Point Point::FromLong(long lpoint) { return Point(static_cast<short>(LOWORD(lpoint)), static_cast<short>(HIWORD(lpoint))); @@ -276,6 +281,7 @@ class SurfaceImpl : public Surface { HBITMAP bitmap; HBITMAP bitmapOld; HPALETTE paletteOld; + int maxWidthMeasure; void BrushColor(ColourAllocated back); void SetFont(Font &font_); @@ -334,6 +340,8 @@ SurfaceImpl::SurfaceImpl() : font(0), fontOld(0), bitmap(0), bitmapOld(0), paletteOld(0) { + // Windows 9x has only a 16 bit coordinate system so break after 30000 pixels + maxWidthMeasure = IsNT() ? 1000000 : 30000; } SurfaceImpl::~SurfaceImpl() { @@ -507,7 +515,7 @@ void SurfaceImpl::Copy(PRectangle rc, Point from, Surface &surfaceSource) { static_cast<SurfaceImpl &>(surfaceSource).hdc, from.x, from.y, SRCCOPY); } -#define MAX_US_LEN 5000 +#define MAX_US_LEN 10000 void SurfaceImpl::DrawTextNoClip(PRectangle rc, Font &font_, int ybase, const char *s, int len, ColourAllocated fore, ColourAllocated back) { @@ -591,7 +599,7 @@ void SurfaceImpl::MeasureWidths(Font &font_, const char *s, int len, int *positi tbuf[tlen] = L'\0'; int poses[MAX_US_LEN]; fit = tlen; - if (!::GetTextExtentExPointW(hdc, tbuf, tlen, 30000, &fit, poses, &sz)) { + if (!::GetTextExtentExPointW(hdc, tbuf, tlen, maxWidthMeasure, &fit, poses, &sz)) { // Likely to have failed because on Windows 9x where function not available // So measure the character widths by measuring each initial substring // Turns a linear operation into a qudratic but seems fast enough on test files @@ -624,7 +632,7 @@ void SurfaceImpl::MeasureWidths(Font &font_, const char *s, int len, int *positi positions[i++] = lastPos; } } else { - if (!::GetTextExtentExPoint(hdc, s, len, 30000, &fit, positions, &sz)) { + if (!::GetTextExtentExPoint(hdc, s, len, maxWidthMeasure, &fit, positions, &sz)) { // Eeek - a NULL DC or other foolishness could cause this. // The least we can do is set the positions to zero! memset(positions, 0, len * sizeof(*positions)); @@ -1370,6 +1378,9 @@ int Platform::Clamp(int val, int minVal, int maxVal) { } void Platform_Initialise(void *hInstance) { + OSVERSIONINFO osv = {sizeof(OSVERSIONINFO),0,0,0,0,""}; + ::GetVersionEx(&osv); + onNT = osv.dwPlatformId == VER_PLATFORM_WIN32_NT; ::InitializeCriticalSection(&crPlatformLock); hinstPlatformRes = reinterpret_cast<HINSTANCE>(hInstance); ListBoxX_Register(); |