/****************************************************************************
**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
QRegion::QRegionData QRegion::shared_empty = { Q_BASIC_ATOMIC_INITIALIZER(1), 0 };
-#if defined(Q_WS_MAC32) && !defined(QT_MAC_USE_COCOA)
-#define RGN_CACHE_SIZE 200
-#ifdef RGN_CACHE_SIZE
-static bool rgncache_init = false;
-static int rgncache_used;
-static RgnHandle rgncache[RGN_CACHE_SIZE];
-static void qt_mac_cleanup_rgncache()
-{
- rgncache_init = false;
- for(int i = 0; i < RGN_CACHE_SIZE; ++i) {
- if(rgncache[i]) {
- --rgncache_used;
- DisposeRgn(rgncache[i]);
- rgncache[i] = 0;
- }
- }
-}
-#endif
-
-Q_GUI_EXPORT RgnHandle qt_mac_get_rgn()
-{
-#ifdef RGN_CACHE_SIZE
- if(!rgncache_init) {
- rgncache_used = 0;
- rgncache_init = true;
- for(int i = 0; i < RGN_CACHE_SIZE; ++i)
- rgncache[i] = 0;
- qAddPostRoutine(qt_mac_cleanup_rgncache);
- } else if(rgncache_used) {
- for(int i = 0; i < RGN_CACHE_SIZE; ++i) {
- if(rgncache[i]) {
- RgnHandle ret = rgncache[i];
- SetEmptyRgn(ret);
- rgncache[i] = 0;
- --rgncache_used;
- return ret;
- }
- }
- }
-#endif
- return NewRgn();
-}
-
-Q_GUI_EXPORT void qt_mac_dispose_rgn(RgnHandle r)
-{
-#ifdef RGN_CACHE_SIZE
- if(rgncache_init && rgncache_used < RGN_CACHE_SIZE) {
- for(int i = 0; i < RGN_CACHE_SIZE; ++i) {
- if(!rgncache[i]) {
- ++rgncache_used;
- rgncache[i] = r;
- return;
- }
- }
- }
-#endif
- DisposeRgn(r);
-}
-
-static OSStatus qt_mac_get_rgn_rect(UInt16 msg, RgnHandle, const Rect *rect, void *reg)
-{
- if(msg == kQDRegionToRectsMsgParse) {
- QRect rct(rect->left, rect->top, (rect->right - rect->left), (rect->bottom - rect->top));
- if(!rct.isEmpty())
- *((QRegion *)reg) += rct;
- }
- return noErr;
-}
-
-Q_GUI_EXPORT QRegion qt_mac_convert_mac_region(RgnHandle rgn)
-{
- return QRegion::fromQDRgn(rgn);
-}
-
-QRegion QRegion::fromQDRgn(RgnHandle rgn)
-{
- QRegion ret;
- ret.detach();
- OSStatus oss = QDRegionToRects(rgn, kQDParseRegionFromTopLeft, qt_mac_get_rgn_rect, (void *)&ret);
- if(oss != noErr)
- return QRegion();
- return ret;
-}
-
-/*!
- \internal
- Create's a RegionHandle, it's the caller's responsibility to release.
-*/
-RgnHandle QRegion::toQDRgn() const
-{
- RgnHandle rgnHandle = qt_mac_get_rgn();
- if(d->qt_rgn && d->qt_rgn->numRects) {
- RgnHandle tmp_rgn = qt_mac_get_rgn();
- int n = d->qt_rgn->numRects;
- const QRect *qt_r = (n == 1) ? &d->qt_rgn->extents : d->qt_rgn->rects.constData();
- while (n--) {
- SetRectRgn(tmp_rgn,
- qMax(SHRT_MIN, qt_r->x()),
- qMax(SHRT_MIN, qt_r->y()),
- qMin(SHRT_MAX, qt_r->right() + 1),
- qMin(SHRT_MAX, qt_r->bottom() + 1));
- UnionRgn(rgnHandle, tmp_rgn, rgnHandle);
- ++qt_r;
- }
- qt_mac_dispose_rgn(tmp_rgn);
- }
- return rgnHandle;
-}
-
-/*!
- \internal
- Create's a RegionHandle, it's the caller's responsibility to release.
- Returns 0 if the QRegion overflows.
-*/
-RgnHandle QRegion::toQDRgnForUpdate_sys() const
-{
- RgnHandle rgnHandle = qt_mac_get_rgn();
- if(d->qt_rgn && d->qt_rgn->numRects) {
- RgnHandle tmp_rgn = qt_mac_get_rgn();
- int n = d->qt_rgn->numRects;
- const QRect *qt_r = (n == 1) ? &d->qt_rgn->extents : d->qt_rgn->rects.constData();
- while (n--) {
-
- // detect overflow. Tested for use with HIViewSetNeedsDisplayInRegion
- // in QWidgetPrivate::update_sys().
- enum { HIViewSetNeedsDisplayInRegionOverflow = 10000 }; // empirically determined conservative value
- if (qt_r->right() > HIViewSetNeedsDisplayInRegionOverflow || qt_r->bottom() > HIViewSetNeedsDisplayInRegionOverflow) {
- qt_mac_dispose_rgn(tmp_rgn);
- qt_mac_dispose_rgn(rgnHandle);
- return 0;
- }
-
- SetRectRgn(tmp_rgn,
- qMax(SHRT_MIN, qt_r->x()),
- qMax(SHRT_MIN, qt_r->y()),
- qMin(SHRT_MAX, qt_r->right() + 1),
- qMin(SHRT_MAX, qt_r->bottom() + 1));
- UnionRgn(rgnHandle, tmp_rgn, rgnHandle);
- ++qt_r;
- }
- qt_mac_dispose_rgn(tmp_rgn);
- }
- return rgnHandle;
-}
-
-#endif
-
-#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
-OSStatus QRegion::shape2QRegionHelper(int inMessage, HIShapeRef,
- const CGRect *inRect, void *inRefcon)
-{
- QRegion *region = static_cast<QRegion *>(inRefcon);
- if (!region)
- return paramErr;
-
- switch (inMessage) {
- case kHIShapeEnumerateRect:
- *region += QRect(inRect->origin.x, inRect->origin.y,
- inRect->size.width, inRect->size.height);
- break;
- case kHIShapeEnumerateInit:
- // Assume the region is already setup correctly
- case kHIShapeEnumerateTerminate:
- default:
- break;
- }
- return noErr;
-}
-#endif
-
-/*!
- \internal
- Create's a mutable shape, it's the caller's responsibility to release.
- WARNING: this function clamps the coordinates to SHRT_MIN/MAX on 10.4 and below.
-*/
-HIMutableShapeRef QRegion::toHIMutableShape() const
-{
- HIMutableShapeRef shape = HIShapeCreateMutable();
-#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
- if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) {
- if (d->qt_rgn && d->qt_rgn->numRects) {
- int n = d->qt_rgn->numRects;
- const QRect *qt_r = (n == 1) ? &d->qt_rgn->extents : d->qt_rgn->rects.constData();
- while (n--) {
- CGRect cgRect = CGRectMake(qt_r->x(), qt_r->y(), qt_r->width(), qt_r->height());
- HIShapeUnionWithRect(shape, &cgRect);
- ++qt_r;
- }
- }
- } else
-#endif
- {
-#ifndef QT_MAC_USE_COCOA
- QCFType<HIShapeRef> qdShape = HIShapeCreateWithQDRgn(QMacSmartQuickDrawRegion(toQDRgn()));
- HIShapeUnion(qdShape, shape, shape);
-#endif
- }
- return shape;
-}
-
-#if !defined(Q_WS_MAC64) && !defined(QT_MAC_USE_COCOA)
-typedef OSStatus (*PtrHIShapeGetAsQDRgn)(HIShapeRef, RgnHandle);
-static PtrHIShapeGetAsQDRgn ptrHIShapeGetAsQDRgn = 0;
-#endif
-
-
-QRegion QRegion::fromHIShapeRef(HIShapeRef shape)
-{
- QRegion returnRegion;
- returnRegion.detach();
- // Begin gratuitous #if-defery
-#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
-# ifndef Q_WS_MAC64
- if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) {
-# endif
- HIShapeEnumerate(shape, kHIShapeParseFromTopLeft, shape2QRegionHelper, &returnRegion);
-# ifndef Q_WS_MAC64
- } else
-# endif
-#endif
- {
-#if !defined(Q_WS_MAC64) && !defined(QT_MAC_USE_COCOA)
- if (ptrHIShapeGetAsQDRgn == 0) {
- QLibrary library(QLatin1String("/System/Library/Frameworks/Carbon.framework/Carbon"));
- library.setLoadHints(QLibrary::ExportExternalSymbolsHint);
- ptrHIShapeGetAsQDRgn = reinterpret_cast<PtrHIShapeGetAsQDRgn>(library.resolve("HIShapeGetAsQDRgn"));
- }
- RgnHandle rgn = qt_mac_get_rgn();
- ptrHIShapeGetAsQDRgn(shape, rgn);
- returnRegion = QRegion::fromQDRgn(rgn);
- qt_mac_dispose_rgn(rgn);
-#endif
- }
- return returnRegion;
-}
-
QT_END_NAMESPACE
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