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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 340 insertions, 0 deletions

diff --git a/src/gui/kernel/qt_cocoa_helpers_mac_p.h b/src/gui/kernel/qt_cocoa_helpers_mac_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/****************************************************************************
+**
+** Copyright (c) 2007-2008, Apple, Inc.
+**
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+**
+**   * Redistributions of source code must retain the above copyright notice,
+**     this list of conditions and the following disclaimer.
+**
+**   * Redistributions in binary form must reproduce the above copyright notice,
+**     this list of conditions and the following disclaimer in the documentation
+**     and/or other materials provided with the distribution.
+**
+**   * Neither the name of Apple, Inc. nor the names of its contributors
+**     may be used to endorse or promote products derived from this software
+**     without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+** PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+** LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+****************************************************************************/
+
+#ifndef QT_COCOA_HELPERS_MAC_P_H
+#define QT_COCOA_HELPERS_MAC_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of qapplication_*.cpp, qwidget*.cpp, qcolor_x11.cpp, qfiledialog.cpp
+// and many other.  This header file may change from version to version
+// without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <private/qt_mac_p.h>
+
+#include <qapplication.h>
+#include <qdesktopwidget.h>
+#include <qwidget.h>
+#include <qevent.h>
+#include <qhash.h>
+#include <qlabel.h>
+#include <qpointer.h>
+#include <qstyle.h>
+#include <qstyleoption.h>
+#include <qstylepainter.h>
+#include <qtimer.h>
+#include <qtooltip.h>
+#include <private/qeffects_p.h>
+#include <private/qwidget_p.h>
+#include <qtextdocument.h>
+#include <qdebug.h>
+#include <qpoint.h>
+#include "private/qt_mac_p.h"
+
+struct HIContentBorderMetrics;
+
+#ifdef Q_WS_MAC32
+typedef struct _NSPoint NSPoint; // Just redefine here so I don't have to pull in all of Cocoa.
+#else
+typedef struct CGPoint NSPoint;
+#endif
+
+QT_BEGIN_NAMESPACE
+
+enum {
+    QtCocoaEventSubTypeWakeup       = SHRT_MAX,
+    QtCocoaEventSubTypePostMessage  = SHRT_MAX-1
+};
+
+Qt::MouseButtons qt_mac_get_buttons(int buttons);
+Qt::MouseButton qt_mac_get_button(EventMouseButton button);
+void macWindowFade(void * /*OSWindowRef*/ window, float durationSeconds = 0.15);
+bool macWindowIsTextured(void * /*OSWindowRef*/ window);
+void macWindowToolbarShow(const QWidget *widget, bool show );
+void macWindowToolbarSet( void * /*OSWindowRef*/ window, void* toolbarRef );
+bool macWindowToolbarIsVisible( void * /*OSWindowRef*/ window );
+void macWindowSetHasShadow( void * /*OSWindowRef*/ window, bool hasShadow );
+void macWindowFlush(void * /*OSWindowRef*/ window);
+void macSendToolbarChangeEvent(QWidget *widget);
+void qt_mac_updateContentBorderMetricts(void * /*OSWindowRef */window, const ::HIContentBorderMetrics &metrics);
+void qt_mac_replaceDrawRect(void * /*OSWindowRef */window, QWidgetPrivate *widget);
+void qt_mac_replaceDrawRectOriginal(void * /*OSWindowRef */window, QWidgetPrivate *widget);
+void qt_mac_showBaseLineSeparator(void * /*OSWindowRef */window, bool show);
+void * /*NSImage */qt_mac_create_nsimage(const QPixmap &pm);
+void qt_mac_update_mouseTracking(QWidget *widget);
+OSStatus qt_mac_drawCGImage(CGContextRef cg, const CGRect *inbounds, CGImageRef);
+bool qt_mac_checkForNativeSizeGrip(const QWidget *widget);
+void qt_dispatchTabletProximityEvent(void * /*NSEvent * */ tabletEvent);
+#ifdef QT_MAC_USE_COCOA
+bool qt_dispatchKeyEventWithCocoa(void * /*NSEvent * */ keyEvent, QWidget *widgetToGetEvent);
+// These methods exists only for supporting unified mode.
+void macDrawRectOnTop(void * /*OSWindowRef */ window);
+void macSyncDrawingOnFirstInvocation(void * /*OSWindowRef */window);
+void qt_cocoaStackChildWindowOnTopOfOtherChildren(QWidget *widget);
+void qt_mac_menu_collapseSeparators(void * /*NSMenu */ menu, bool collapse);
+#endif
+bool qt_dispatchKeyEvent(void * /*NSEvent * */ keyEvent, QWidget *widgetToGetEvent);
+void qt_dispatchModifiersChanged(void * /*NSEvent * */flagsChangedEvent, QWidget *widgetToGetEvent);
+bool qt_mac_handleTabletEvent(void * /*QCocoaView * */view, void * /*NSEvent * */event);
+inline QApplication *qAppInstance() { return static_cast<QApplication *>(QCoreApplication::instance()); }
+struct ::TabletProximityRec;
+void qt_dispatchTabletProximityEvent(const ::TabletProximityRec &proxRec);
+Qt::KeyboardModifiers qt_cocoaModifiers2QtModifiers(ulong modifierFlags);
+Qt::KeyboardModifiers qt_cocoaDragOperation2QtModifiers(uint dragOperations);
+QPixmap qt_mac_convert_iconref(const IconRef icon, int width, int height);
+void qt_mac_constructQIconFromIconRef(const IconRef icon, const IconRef overlayIcon, QIcon *retIcon,
+                                      QStyle::StandardPixmap standardIcon = QStyle::SP_CustomBase);
+
+#if QT_MAC_USE_COCOA && __OBJC__
+struct DnDParams
+{
+    NSView *view;
+    NSEvent *theEvent;
+    QPoint globalPoint;
+    NSDragOperation performedAction;
+};
+
+DnDParams *macCurrentDnDParameters();
+NSDragOperation qt_mac_mapDropAction(Qt::DropAction action);
+NSDragOperation qt_mac_mapDropActions(Qt::DropActions actions);
+Qt::DropAction qt_mac_mapNSDragOperation(NSDragOperation nsActions);
+Qt::DropActions qt_mac_mapNSDragOperations(NSDragOperation nsActions);
+
+QWidget *qt_mac_getTargetForKeyEvent(QWidget *widgetThatReceivedEvent);
+QWidget *qt_mac_getTargetForMouseEvent(NSEvent *event, QEvent::Type eventType,
+    QPoint &returnLocalPoint, QPoint &returnGlobalPoint, QWidget *nativeWidget, QWidget **returnWidgetUnderMouse);
+bool qt_mac_handleMouseEvent(NSEvent *event, QEvent::Type eventType, Qt::MouseButton button, QWidget *nativeWidget);
+void qt_mac_handleNonClientAreaMouseEvent(NSWindow *window, NSEvent *event);
+#endif
+
+inline int flipYCoordinate(int y)
+{
+    return QApplication::desktop()->screenGeometry(0).height() - y;    
+}
+
+inline qreal flipYCoordinate(qreal y)
+{
+    return QApplication::desktop()->screenGeometry(0).height() - y;
+}
+
+QPointF flipPoint(const NSPoint &p);
+NSPoint flipPoint(const QPoint &p);
+NSPoint flipPoint(const QPointF &p);
+
+QStringList qt_mac_NSArrayToQStringList(void *nsarray);
+void *qt_mac_QStringListToNSMutableArrayVoid(const QStringList &list);
+
+void qt_syncCocoaTitleBarButtons(OSWindowRef window, QWidget *widgetForWindow);
+
+CGFloat qt_mac_get_scalefactor();
+QString qt_mac_get_pasteboardString(OSPasteboardRef paste);
+
+#ifdef __OBJC__
+inline NSMutableArray *qt_mac_QStringListToNSMutableArray(const QStringList &qstrlist)
+{ return reinterpret_cast<NSMutableArray *>(qt_mac_QStringListToNSMutableArrayVoid(qstrlist)); }
+
+inline QString qt_mac_NSStringToQString(const NSString *nsstr)
+{ return QCFString::toQString(reinterpret_cast<const CFStringRef>(nsstr)); }
+
+inline NSString *qt_mac_QStringToNSString(const QString &qstr)
+{ return [reinterpret_cast<const NSString *>(QCFString::toCFStringRef(qstr)) autorelease]; }
+
+#ifdef QT_MAC_USE_COCOA
+class QCocoaPostMessageArgs {
+public:
+    id target;
+    SEL selector;
+    int argCount;
+    id arg1;
+    id arg2;
+    QCocoaPostMessageArgs(id target, SEL selector, int argCount=0, id arg1=0, id arg2=0)
+        : target(target), selector(selector), argCount(argCount), arg1(arg1), arg2(arg2)
+    {
+        [target retain];
+        [arg1 retain];
+        [arg2 retain];
+    }
+
+    ~QCocoaPostMessageArgs()
+    {
+        [arg2 release];
+        [arg1 release];
+        [target release];
+    }
+};
+void qt_cocoaPostMessage(id target, SEL selector, int argCount=0, id arg1=0, id arg2=0);
+void qt_cocoaPostMessageAfterEventLoopExit(id target, SEL selector, int argCount=0, id arg1=0, id arg2=0);
+#endif
+
+#endif
+
+class QMacScrollOptimization {
+    // This class is made to optimize for the case when the user
+    // scrolls both horizontally and vertically at the same
+    // time. This will result in two QWheelEvents (one for each
+    // direction), which will typically result in two calls to
+    // QWidget::_scroll_sys. Rather than copying pixels twize on
+    // screen because of this, we add this helper class to try to
+    // get away with only one blit.
+    static QWidgetPrivate *_target;
+    static bool _inWheelEvent;
+    static int _dx;
+    static int _dy;
+    static QRect _scrollRect;
+
+public:
+    static void initDelayedScroll()
+    {
+        _inWheelEvent = true;
+    }
+
+    static bool delayScroll(QWidgetPrivate *target, int dx, int dy, const QRect &scrollRect)
+    {
+        if (!_inWheelEvent)
+            return false;
+        if (_target && _target != target)
+            return false;
+        if (_scrollRect.width() != -1 && _scrollRect != scrollRect)
+            return false;
+
+        _target = target;
+        _dx += dx;
+        _dy += dy;
+        _scrollRect = scrollRect;
+        return true;
+    }
+
+    static void performDelayedScroll()
+    {
+        if (!_inWheelEvent)
+            return;
+        _inWheelEvent = false;
+        if (!_target)
+            return;
+
+        _target->scroll_sys(_dx, _dy, _scrollRect);
+
+        _target = 0;
+        _dx = 0;
+        _dy = 0;
+        _scrollRect = QRect(0, 0, -1, -1);
+    }
+};
+
+void qt_mac_post_retranslateAppMenu();
+
+#ifdef QT_MAC_USE_COCOA
+void qt_mac_display(QWidget *widget);
+void qt_mac_setNeedsDisplay(QWidget *widget);
+void qt_mac_setNeedsDisplayInRect(QWidget *widget, QRegion region);
+#endif // QT_MAC_USE_COCOA
+
+
+// Utility functions to ease the use of Core Graphics contexts.
+
+inline void qt_mac_retain_graphics_context(CGContextRef context)
+{
+    CGContextRetain(context);
+    CGContextSaveGState(context);
+}
+
+inline void qt_mac_release_graphics_context(CGContextRef context)
+{
+    CGContextRestoreGState(context);
+    CGContextRelease(context);
+}
+
+inline void qt_mac_draw_image(CGContextRef context, CGContextRef imageContext, CGRect area, CGRect drawingArea)
+{
+    CGImageRef image = CGBitmapContextCreateImage(imageContext);
+    CGImageRef subImage = CGImageCreateWithImageInRect(image, area);
+
+    CGContextTranslateCTM (context, 0, drawingArea.origin.y + CGRectGetMaxY(drawingArea));
+    CGContextScaleCTM(context, 1, -1);
+    CGContextDrawImage(context, drawingArea, subImage);
+
+    CGImageRelease(subImage);
+    CGImageRelease(image);
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_COCOA_HELPERS_MAC_P_H