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Diffstat (limited to 'src/widgets/qpopupmenu.cpp')
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diff --git a/src/widgets/qpopupmenu.cpp b/src/widgets/qpopupmenu.cpp new file mode 100644 index 0000000..9e1e01c --- /dev/null +++ b/src/widgets/qpopupmenu.cpp @@ -0,0 +1,2886 @@ +/**************************************************************************** +** +** Implementation of QPopupMenu class +** +** Created : 941128 +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the widgets module of the Qt GUI Toolkit. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free Qt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing requirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at [email protected]. +** +** This file may be used under the terms of the Q Public License as +** defined by Trolltech ASA and appearing in the file LICENSE.QPL +** included in the packaging of this file. Licensees holding valid Qt +** Commercial licenses may use this file in accordance with the Qt +** Commercial License Agreement provided with the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#include "qpopupmenu.h" +#ifndef QT_NO_POPUPMENU +#include "qmenubar.h" +#include "qaccel.h" +#include "qpainter.h" +#include "qdrawutil.h" +#include "qapplication.h" +#include "qpixmap.h" +#include "qpixmapcache.h" +#include "qtimer.h" +#include "qwhatsthis.h" +#include "qobjectlist.h" +#include "qguardedptr.h" +#include "qeffects_p.h" +#include "qcursor.h" +#include "qstyle.h" +#include "qtimer.h" +#include "qdatetime.h" +#if defined(QT_ACCESSIBILITY_SUPPORT) +#include "qaccessible.h" +#endif + +//#define ANIMATED_POPUP +//#define BLEND_POPUP + +// Motif style parameters + +static const int motifArrowHMargin = 6; // arrow horizontal margin +static const int motifArrowVMargin = 2; // arrow vertical margin + +static const int gtkArrowHMargin = 0; // arrow horizontal margin +static const int gtkArrowVMargin = 0; // arrow vertical margin + +/* + ++----------------------------- +| PopupFrame +| +------------------------- +| | ItemFrame +| | +--------------------- +| | | +| | | \ +| | | ^ T E X T ^ | ItemVMargin +| | | | | / +| | ItemHMargin +| + +*/ + +#if 0 +# define DEBUG_SLOPPY_SUBMENU +#endif + +// used for internal communication +static QPopupMenu * syncMenu = 0; +static int syncMenuId = 0; + +// Used to detect motion prior to mouse-release +static int motion; + +// used to provide ONE single-shot timer +static QTimer * singleSingleShot = 0; + +static bool supressAboutToShow = FALSE; + +static void cleanup() +{ + delete singleSingleShot; + singleSingleShot = 0; +} + +static void popupSubMenuLater( int msec, QPopupMenu * receiver ) { + if ( !singleSingleShot ) { + singleSingleShot = new QTimer( qApp, "popup submenu timer" ); + qAddPostRoutine( cleanup ); + } + + singleSingleShot->disconnect( SIGNAL(timeout()) ); + QObject::connect( singleSingleShot, SIGNAL(timeout()), + receiver, SLOT(subMenuTimer()) ); + singleSingleShot->start( msec, TRUE ); +} + +static bool preventAnimation = FALSE; + +#ifndef QT_NO_WHATSTHIS +extern void qWhatsThisBDH(); +static QMenuItem* whatsThisItem = 0; +#endif + +/*! + \class QPopupMenu qpopupmenu.h + \brief The QPopupMenu class provides a popup menu widget. + + \ingroup application + \ingroup basic + \mainclass + + A popup menu widget is a selection menu. It can be either a + pull-down menu in a menu bar or a standalone context (popup) menu. + Pull-down menus are shown by the menu bar when the user clicks on + the respective item or presses the specified shortcut key. Use + QMenuBar::insertItem() to insert a popup menu into a menu bar. + Show a context menu either asynchronously with popup() or + synchronously with exec(). + + Technically, a popup menu consists of a list of menu items. You + add items with insertItem(). An item is either a string, a pixmap + or a custom item that provides its own drawing function (see + QCustomMenuItem). In addition, items can have an optional icon + drawn on the very left side and an accelerator key such as + "Ctrl+X". + + There are three kinds of menu items: separators, menu items that + perform an action and menu items that show a submenu. Separators + are inserted with insertSeparator(). For submenus, you pass a + pointer to a QPopupMenu in your call to insertItem(). All other + items are considered action items. + + When inserting action items you usually specify a receiver and a + slot. The receiver will be notifed whenever the item is selected. + In addition, QPopupMenu provides two signals, activated() and + highlighted(), which signal the identifier of the respective menu + item. It is sometimes practical to connect several items to one + slot. To distinguish between them, specify a slot that takes an + integer argument and use setItemParameter() to associate a unique + value with each item. + + You clear a popup menu with clear() and remove single items with + removeItem() or removeItemAt(). + + A popup menu can display check marks for certain items when + enabled with setCheckable(TRUE). You check or uncheck items with + setItemChecked(). + + Items are either enabled or disabled. You toggle their state with + setItemEnabled(). Just before a popup menu becomes visible, it + emits the aboutToShow() signal. You can use this signal to set the + correct enabled/disabled states of all menu items before the user + sees it. The corresponding aboutToHide() signal is emitted when + the menu hides again. + + You can provide What's This? help for single menu items with + setWhatsThis(). See QWhatsThis for general information about this + kind of lightweight online help. + + For ultimate flexibility, you can also add entire widgets as items + into a popup menu (for example, a color selector). + + A QPopupMenu can also provide a tear-off menu. A tear-off menu is + a top-level window that contains a copy of the menu. This makes it + possible for the user to "tear off" frequently used menus and + position them in a convenient place on the screen. If you want + that functionality for a certain menu, insert a tear-off handle + with insertTearOffHandle(). When using tear-off menus, bear in + mind that the concept isn't typically used on Microsoft Windows so + users may not be familiar with it. Consider using a QToolBar + instead. Tear-off menus cannot contain custom widgets; if the + original menu contains a custom widget item, this item is omitted. + + \link menu-example.html menu/menu.cpp\endlink is an example of + QMenuBar and QPopupMenu use. + + \important insertItem removeItem removeItemAt clear text pixmap iconSet insertSeparator changeItem whatsThis setWhatsThis accel setAccel setItemEnabled isItemEnabled setItemVisible isItemVisible setItemChecked isItemChecked connectItem disconnectItem setItemParameter itemParameter + + <img src=qpopmenu-m.png> <img src=qpopmenu-w.png> + + \sa QMenuBar + \link guibooks.html#fowler GUI Design Handbook: Menu, Drop-Down and + Pop-Up\endlink +*/ + + +/*! + \fn void QPopupMenu::aboutToShow() + + This signal is emitted just before the popup menu is displayed. + You can connect it to any slot that sets up the menu contents + (e.g. to ensure that the right items are enabled). + + \sa aboutToHide(), setItemEnabled(), setItemChecked(), insertItem(), removeItem() +*/ + +/*! + \fn void QPopupMenu::aboutToHide() + + This signal is emitted just before the popup menu is hidden after + it has been displayed. + + \warning Do not open a widget in a slot connected to this signal. + + \sa aboutToShow(), setItemEnabled(), setItemChecked(), insertItem(), removeItem() +*/ + + + +/***************************************************************************** + QPopupMenu member functions + *****************************************************************************/ + +class QMenuDataData { + // attention: also defined in qmenudata.cpp +public: + QMenuDataData(); + QGuardedPtr<QWidget> aWidget; + int aInt; +}; + +class QPopupMenuPrivate { +public: + struct Scroll { + enum { ScrollNone=0, ScrollUp=0x01, ScrollDown=0x02 }; + uint scrollable : 2; + uint direction : 1; + int topScrollableIndex, scrollableSize; + QTime lastScroll; + QTimer *scrolltimer; + } scroll; + QSize calcSize; + QRegion mouseMoveBuffer; + uint hasmouse : 1; + QPoint ignoremousepos; +}; + +static QPopupMenu* active_popup_menu = 0; + +/*! + Constructs a popup menu called \a name with parent \a parent. + + Although a popup menu is always a top-level widget, if a parent is + passed the popup menu will be deleted when that parent is + destroyed (as with any other QObject). +*/ + +QPopupMenu::QPopupMenu( QWidget *parent, const char *name ) + : QFrame( parent, name, WType_Popup | WNoAutoErase ) +{ + d = new QPopupMenuPrivate; + d->scroll.scrollableSize = d->scroll.topScrollableIndex = 0; + d->scroll.scrollable = QPopupMenuPrivate::Scroll::ScrollNone; + d->scroll.scrolltimer = 0; + d->hasmouse = 0; + isPopupMenu = TRUE; +#ifndef QT_NO_ACCEL + autoaccel = 0; + accelDisabled = FALSE; +#endif + popupActive = -1; + snapToMouse = TRUE; + tab = 0; + checkable = 0; + tornOff = 0; + pendingDelayedContentsChanges = 0; + pendingDelayedStateChanges = 0; + maxPMWidth = 0; + + tab = 0; + ncols = 1; + setFrameStyle( QFrame::PopupPanel | QFrame::Raised ); + setMouseTracking(style().styleHint(QStyle::SH_PopupMenu_MouseTracking, this)); + style().polishPopupMenu( this ); + setBackgroundMode( PaletteButton ); + connectModalRecursionSafety = 0; + + setFocusPolicy( StrongFocus ); +#ifdef Q_WS_X11 + x11SetWindowType( X11WindowTypePopup ); +#endif +} + +/*! + Destroys the popup menu. +*/ + +QPopupMenu::~QPopupMenu() +{ + if ( syncMenu == this && qApp ) { + qApp->exit_loop(); + syncMenu = 0; + } + + if(d->scroll.scrolltimer) + delete d->scroll.scrolltimer; + + if ( isVisible() ) { + parentMenu = 0; + hidePopups(); + } + + delete (QWidget*) QMenuData::d->aWidget; // tear-off menu + + preventAnimation = FALSE; + delete d; +} + + +/*! + Updates the item with identity \a id. +*/ +void QPopupMenu::updateItem( int id ) // update popup menu item +{ + updateRow( indexOf(id) ); +} + + +void QPopupMenu::setCheckable( bool enable ) +{ + if ( isCheckable() != enable ) { + checkable = enable; + badSize = TRUE; + if ( QMenuData::d->aWidget ) + ( (QPopupMenu*)(QWidget*)QMenuData::d->aWidget)->setCheckable( enable ); + } +} + +/*! + \property QPopupMenu::checkable + \brief whether the display of check marks on menu items is enabled + + When TRUE, the display of check marks on menu items is enabled. + Checking is always enabled when in Windows-style. + + \sa QMenuData::setItemChecked() +*/ + +bool QPopupMenu::isCheckable() const +{ + return checkable; +} + +void QPopupMenu::menuContentsChanged() +{ + // here the part that can't be delayed + QMenuData::menuContentsChanged(); + badSize = TRUE; // might change the size +#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE) + mac_dirty_popup = 1; +#endif + if( pendingDelayedContentsChanges ) + return; + pendingDelayedContentsChanges = 1; + if( !pendingDelayedStateChanges ) // if the timer hasn't been started yet + QTimer::singleShot( 0, this, SLOT(performDelayedChanges())); +} + +void QPopupMenu::performDelayedContentsChanged() +{ + pendingDelayedContentsChanges = 0; + // here the part the can be delayed +#ifndef QT_NO_ACCEL + // if performDelayedStateChanged() will be called too, + // it will call updateAccel() too, no need to do it twice + if( !pendingDelayedStateChanges ) + updateAccel( 0 ); +#endif + if ( isVisible() ) { + if ( tornOff ) + return; + updateSize(TRUE); + update(); + } + QPopupMenu* p = (QPopupMenu*)(QWidget*)QMenuData::d->aWidget; + if ( p && p->isVisible() ) { + p->updateSize(TRUE); + p->update(); + } +#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE) + mac_dirty_popup = 1; +#endif +} + + +void QPopupMenu::menuStateChanged() +{ + // here the part that can't be delayed + if( pendingDelayedStateChanges ) + return; + pendingDelayedStateChanges = 1; + if( !pendingDelayedContentsChanges ) // if the timer hasn't been started yet + QTimer::singleShot( 0, this, SLOT(performDelayedChanges())); +} + +void QPopupMenu::performDelayedStateChanged() +{ + pendingDelayedStateChanges = 0; + // here the part that can be delayed +#ifndef QT_NO_ACCEL + updateAccel( 0 ); // ### when we have a good solution for the accel vs. focus widget problem, remove that. That is only a workaround + // if you remove this, see performDelayedContentsChanged() +#endif + update(); + if ( QMenuData::d->aWidget ) + QMenuData::d->aWidget->update(); +} + +void QPopupMenu::performDelayedChanges() +{ + if( pendingDelayedContentsChanges ) + performDelayedContentsChanged(); + if( pendingDelayedStateChanges ) + performDelayedStateChanged(); +} + +void QPopupMenu::menuInsPopup( QPopupMenu *popup ) +{ + connect( popup, SIGNAL(activatedRedirect(int)), + SLOT(subActivated(int)) ); + connect( popup, SIGNAL(highlightedRedirect(int)), + SLOT(subHighlighted(int)) ); + connect( popup, SIGNAL(destroyed(QObject*)), + this, SLOT(popupDestroyed(QObject*)) ); +} + +void QPopupMenu::menuDelPopup( QPopupMenu *popup ) +{ + popup->disconnect( SIGNAL(activatedRedirect(int)) ); + popup->disconnect( SIGNAL(highlightedRedirect(int)) ); + disconnect( popup, SIGNAL(destroyed(QObject*)), + this, SLOT(popupDestroyed(QObject*)) ); +} + + +void QPopupMenu::frameChanged() +{ + menuContentsChanged(); +} + +QRect QPopupMenu::screenRect( const QPoint& pos ) +{ + int screen_num = QApplication::desktop()->screenNumber( pos ); +#ifdef Q_WS_MAC + return QApplication::desktop()->availableGeometry( screen_num ); +#else + return QApplication::desktop()->screenGeometry( screen_num ); +#endif +} +/*! + Displays the popup menu so that the item number \a indexAtPoint + will be at the specified \e global position \a pos. To translate a + widget's local coordinates into global coordinates, use + QWidget::mapToGlobal(). + + When positioning a popup with exec() or popup(), bear in mind that + you cannot rely on the popup menu's current size(). For + performance reasons, the popup adapts its size only when + necessary, so in many cases, the size before and after the show is + different. Instead, use sizeHint(). It calculates the proper size + depending on the menu's current contents. +*/ + +void QPopupMenu::popup( const QPoint &pos, int indexAtPoint ) +{ + if ( !isPopup() && isVisible() ) + hide(); + + //avoid circularity + if ( isVisible() || !isEnabled() ) + return; + +#if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE) + if( macPopupMenu(pos, indexAtPoint )) + return; +#endif + +#if (QT_VERSION-0 >= 0x040000) +#error "Fix this now" + // #### should move to QWidget - anything might need this functionality, + // #### since anything can have WType_Popup window flag. + // #### This includes stuff in QPushButton and some stuff for setting + // #### the geometry of QDialog. + // QPopupMenu + // ::exec() + // ::popup() + // QPushButton (shouldn't require QMenuPopup) + // ::popupPressed + // Some stuff in qwidget.cpp for dialogs... can't remember exactly. + // Also the code here indicatets the parameter should be a rect, not a + // point. +#endif + + QRect screen = screenRect( geometry().center()); + QRect screen2 = screenRect( QApplication::reverseLayout() + ? pos+QPoint(width(),0) : pos ); + // if the widget is not in the screen given by the position, move it + // there, so that updateSize() uses the right size of the screen + if( screen != screen2 ) { + screen = screen2; + move( screen.x(), screen.y()); + } + if(d->scroll.scrollable) { + d->scroll.scrollable = QPopupMenuPrivate::Scroll::ScrollNone; + d->scroll.topScrollableIndex = d->scroll.scrollableSize = 0; + badSize = TRUE; + } + updateSize(); + + QPoint mouse = QCursor::pos(); + snapToMouse = pos == mouse; + + // have to emit here as a menu might be setup in a slot connected + // to aboutToShow which will change the size of the menu + bool s = supressAboutToShow; + supressAboutToShow = TRUE; + if ( !s) { + emit aboutToShow(); + updateSize(TRUE); + } + + int sw = screen.width(); // screen width + int sh = screen.height(); // screen height + int sx = screen.x(); // screen pos + int sy = screen.y(); + int x = pos.x(); + int y = pos.y(); + if ( indexAtPoint >= 0 ) // don't subtract when < 0 + y -= itemGeometry( indexAtPoint ).y(); // (would subtract 2 pixels!) + int w = width(); + int h = height(); + + if ( snapToMouse ) { + if ( qApp->reverseLayout() ) + x -= w; + if ( x+w > sx+sw ) + x = mouse.x()-w; + if ( y+h > sy+sh ) + y = mouse.y()-h; + if ( x < sx ) + x = mouse.x(); + if ( y < sy ) + y = sy; + } +#ifdef Q_WS_X11 +#ifndef QT_NO_MENUBAR + QMenuData *top = this; // find top level + while ( top->parentMenu ) + top = top->parentMenu; + if( top->isMenuBar ) + x11SetWindowType( X11WindowTypeDropdown ); + if( parentMenu && parentMenu->isMenuBar ) + x11SetWindowTransient( static_cast< QMenuBar* >( parentMenu )->topLevelWidget()); +#endif + if( parentMenu && !parentMenu->isMenuBar ) + x11SetWindowTransient( static_cast< QPopupMenu* >( parentMenu )); + if( !parentMenu ) { + // hackish ... try to find the main window related to this popup + QWidget* parent = parentWidget() ? parentWidget()->topLevelWidget() : NULL; + if( parent == NULL ) + parent = QApplication::widgetAt( pos ); + if( parent == NULL ) + parent = qApp->activeWindow(); + if( parent != NULL ) + x11SetWindowTransient( parent ); + } +#endif + + if ( x+w > sx+sw ) // the complete widget must + x = sx+sw - w; // be visible + if ( y+h > sy+sh ) + y = sy+sh - h; + if ( x < sx ) + x = sx; + if ( y < sy ) + y = sy; + + if(style().styleHint(QStyle::SH_PopupMenu_Scrollable, this)) { + int off_top = 0, off_bottom = 0; + if(y+h > sy+sh) + off_bottom = (y+h) - (sy+sh); + if(y < sy) + off_top = sy - y; + if(off_bottom || off_top) { + int ch = updateSize().height(); //store the old height, before setting scrollable --Sam + const int vextra = style().pixelMetric(QStyle::PM_PopupMenuFrameVerticalExtra, this); + d->scroll.scrollableSize = h - off_top - off_bottom - 2*vextra; + if(off_top) { + move( x, y = sy ); + d->scroll.scrollable = d->scroll.scrollable | QPopupMenuPrivate::Scroll::ScrollUp; + } + if( off_bottom ) + d->scroll.scrollable = d->scroll.scrollable | QPopupMenuPrivate::Scroll::ScrollDown; + if( off_top != off_bottom && indexAtPoint >= 0 ) { + ch -= (vextra * 2); + if(ch > sh) //no bigger than the screen! + ch = sh; + if( ch > d->scroll.scrollableSize ) + d->scroll.scrollableSize = ch; + } + + updateSize(TRUE); //now set the size using the scrollable/scrollableSize as above + w = width(); + h = height(); + if(indexAtPoint >= 0) { + if(off_top) { //scroll to it + register QMenuItem *mi = NULL; + QMenuItemListIt it(*mitems); + for(int tmp_y = 0; tmp_y < off_top && (mi=it.current()); ) { + QSize sz = style().sizeFromContents(QStyle::CT_PopupMenuItem, this, + QSize(0, itemHeight( mi )), + QStyleOption(mi,maxPMWidth,0)); + tmp_y += sz.height(); + d->scroll.topScrollableIndex++; + } + } + } + } + } + move( x, y ); + motion=0; + actItem = -1; + +#ifndef QT_NO_EFFECTS + int hGuess = qApp->reverseLayout() ? QEffects::LeftScroll : QEffects::RightScroll; + int vGuess = QEffects::DownScroll; + if ( qApp->reverseLayout() ) { + if ( snapToMouse && ( x + w/2 > mouse.x() ) || + ( parentMenu && parentMenu->isPopupMenu && + ( x + w/2 > ((QPopupMenu*)parentMenu)->x() ) ) ) + hGuess = QEffects::RightScroll; + } else { + if ( snapToMouse && ( x + w/2 < mouse.x() ) || + ( parentMenu && parentMenu->isPopupMenu && + ( x + w/2 < ((QPopupMenu*)parentMenu)->x() ) ) ) + hGuess = QEffects::LeftScroll; + } + +#ifndef QT_NO_MENUBAR + if ( snapToMouse && ( y + h/2 < mouse.y() ) || + ( parentMenu && parentMenu->isMenuBar && + ( y + h/2 < ((QMenuBar*)parentMenu)->mapToGlobal( ((QMenuBar*)parentMenu)->pos() ).y() ) ) ) + vGuess = QEffects::UpScroll; +#endif + + if ( QApplication::isEffectEnabled( UI_AnimateMenu ) && + preventAnimation == FALSE ) { + if ( QApplication::isEffectEnabled( UI_FadeMenu ) ) + qFadeEffect( this ); + else if ( parentMenu ) + qScrollEffect( this, parentMenu->isPopupMenu ? hGuess : vGuess ); + else + qScrollEffect( this, hGuess | vGuess ); + } else +#endif + { + show(); + } +#if defined(QT_ACCESSIBILITY_SUPPORT) + QAccessible::updateAccessibility( this, 0, QAccessible::PopupMenuStart ); +#endif +} + +/*! + \fn void QPopupMenu::activated( int id ) + + This signal is emitted when a menu item is selected; \a id is the + id of the selected item. + + Normally, you connect each menu item to a single slot using + QMenuData::insertItem(), but sometimes you will want to connect + several items to a single slot (most often if the user selects + from an array). This signal is useful in such cases. + + \sa highlighted(), QMenuData::insertItem() +*/ + +/*! + \fn void QPopupMenu::highlighted( int id ) + + This signal is emitted when a menu item is highlighted; \a id is + the id of the highlighted item. + + \sa activated(), QMenuData::insertItem() +*/ + +/*! \fn void QPopupMenu::highlightedRedirect( int id ) + \internal + Used internally to connect submenus to their parents. +*/ + +/*! \fn void QPopupMenu::activatedRedirect( int id ) + \internal + Used internally to connect submenus to their parents. +*/ + +void QPopupMenu::subActivated( int id ) +{ + emit activatedRedirect( id ); +} + +void QPopupMenu::subHighlighted( int id ) +{ + emit highlightedRedirect( id ); +} + +static bool fromAccel = FALSE; + +#ifndef QT_NO_ACCEL +void QPopupMenu::accelActivated( int id ) +{ + QMenuItem *mi = findItem( id ); + if ( mi && mi->isEnabledAndVisible() ) { + QGuardedPtr<QSignal> signal = mi->signal(); + fromAccel = TRUE; + actSig( mi->id() ); + fromAccel = FALSE; + if ( signal ) + signal->activate(); + } +} + +void QPopupMenu::accelDestroyed() // accel about to be deleted +{ + autoaccel = 0; // don't delete it twice! +} +#endif //QT_NO_ACCEL + +void QPopupMenu::popupDestroyed( QObject *o ) +{ + removePopup( (QPopupMenu*)o ); +} + +void QPopupMenu::actSig( int id, bool inwhatsthis ) +{ + if ( !inwhatsthis ) { + emit activated( id ); +#if defined(QT_ACCESSIBILITY_SUPPORT) + if ( !fromAccel ) + QAccessible::updateAccessibility( this, indexOf(id)+1, QAccessible::MenuCommand ); +#endif + } else { +#ifndef QT_NO_WHATSTHIS + QRect r( itemGeometry( indexOf( id ) ) ); + QPoint p( r.center().x(), r.bottom() ); + QString whatsThis = findItem( id )->whatsThis(); + if ( whatsThis.isNull() ) + whatsThis = QWhatsThis::textFor( this, p ); + QWhatsThis::leaveWhatsThisMode( whatsThis, mapToGlobal( p ), this ); +#endif + } + + emit activatedRedirect( id ); +} + +void QPopupMenu::hilitSig( int id ) +{ + emit highlighted( id ); + emit highlightedRedirect( id ); + +#if defined(QT_ACCESSIBILITY_SUPPORT) + QAccessible::updateAccessibility( this, indexOf(id)+1, QAccessible::Focus ); + QAccessible::updateAccessibility( this, indexOf(id)+1, QAccessible::Selection ); +#endif +} + +void QPopupMenu::setFirstItemActive() +{ + QMenuItemListIt it(*mitems); + register QMenuItem *mi; + int ai = 0; + if(d->scroll.scrollable) + ai = d->scroll.topScrollableIndex; + while ( (mi=it.current()) ) { + ++it; + if ( !mi->isSeparator() && mi->id() != QMenuData::d->aInt && + ( style().styleHint( QStyle::SH_PopupMenu_AllowActiveAndDisabled, this ) || mi->isEnabledAndVisible() )) { + setActiveItem( ai ); + return; + } + ai++; + } + actItem = -1; +} + +/*! + \internal + Hides all popup menus (in this menu tree) that are currently open. +*/ + +void QPopupMenu::hideAllPopups() +{ + register QMenuData *top = this; // find top level popup + if ( !preventAnimation ) + QTimer::singleShot( 10, this, SLOT(allowAnimation()) ); + preventAnimation = TRUE; + + if ( !isPopup() ) + return; // nothing to do + + while ( top->parentMenu && top->parentMenu->isPopupMenu + && ((QPopupMenu*)top->parentMenu)->isPopup() ) + top = top->parentMenu; + ((QPopupMenu*)top)->hide(); // cascade from top level + +#ifndef QT_NO_WHATSTHIS + if (whatsThisItem) { + qWhatsThisBDH(); + whatsThisItem = 0; + } +#endif + +} + +/*! + \internal + Hides all popup sub-menus. +*/ + +void QPopupMenu::hidePopups() +{ + if ( !preventAnimation ) + QTimer::singleShot( 10, this, SLOT(allowAnimation()) ); + preventAnimation = TRUE; + + QMenuItemListIt it(*mitems); + register QMenuItem *mi; + while ( (mi=it.current()) ) { + ++it; + if ( mi->popup() && mi->popup()->parentMenu == this ) //avoid circularity + mi->popup()->hide(); + } + popupActive = -1; // no active sub menu + if(style().styleHint(QStyle::SH_PopupMenu_SubMenuPopupDelay, this)) + d->mouseMoveBuffer = QRegion(); + + QRect mfrect = itemGeometry( actItem ); + setMicroFocusHint( mfrect.x(), mfrect.y(), mfrect.width(), mfrect.height(), FALSE ); +} + + +/*! + \internal + Sends the event to the menu bar. +*/ + +bool QPopupMenu::tryMenuBar( QMouseEvent *e ) +{ + register QMenuData *top = this; // find top level + while ( top->parentMenu ) + top = top->parentMenu; +#ifndef QT_NO_MENUBAR + return top->isMenuBar ? + ((QMenuBar *)top)->tryMouseEvent( this, e ) : + ((QPopupMenu*)top)->tryMouseEvent(this, e ); +#else + return ((QPopupMenu*)top)->tryMouseEvent(this, e ); +#endif +} + + +/*! + \internal +*/ +bool QPopupMenu::tryMouseEvent( QPopupMenu *p, QMouseEvent * e) +{ + if ( p == this ) + return FALSE; + QPoint pos = mapFromGlobal( e->globalPos() ); + if ( !rect().contains( pos ) ) // outside + return FALSE; + QMouseEvent ee( e->type(), pos, e->globalPos(), e->button(), e->state() ); + event( &ee ); + return TRUE; +} + +/*! + \internal + Tells the menu bar to go back to idle state. +*/ + +void QPopupMenu::byeMenuBar() +{ +#ifndef QT_NO_MENUBAR + register QMenuData *top = this; // find top level + while ( top->parentMenu ) + top = top->parentMenu; +#endif + hideAllPopups(); +#ifndef QT_NO_MENUBAR + if ( top->isMenuBar ) + ((QMenuBar *)top)->goodbye(); +#endif +} + + +/*! + \internal + Return the item at \a pos, or -1 if there is no item there or if + it is a separator item. +*/ + +int QPopupMenu::itemAtPos( const QPoint &pos, bool ignoreSeparator ) const +{ + if ( !contentsRect().contains(pos) ) + return -1; + + int row = 0; + int x = contentsRect().x(); + int y = contentsRect().y(); + QMenuItem *mi; + QMenuItemListIt it( *mitems ); + if(d->scroll.scrollable) { + if(d->scroll.topScrollableIndex) { + for( ; (mi = it.current()) && row < d->scroll.topScrollableIndex; row++) + ++it; + if(!mi) { + row = 0; + it.toFirst(); + } + y += style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + } + } + int itemw = contentsRect().width() / ncols; + QSize sz; + while ( (mi=it.current()) ) { + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown && + y >= contentsRect().height() - style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this)) + return -1; + ++it; + if ( !mi->isVisible() ) { + ++row; + continue; + } + int itemh = itemHeight( mi ); + + sz = style().sizeFromContents(QStyle::CT_PopupMenuItem, this, + QSize(0, itemh), + QStyleOption(mi,maxPMWidth)); + sz = sz.expandedTo(QSize(itemw, sz.height())); + itemw = sz.width(); + itemh = sz.height(); + + if ( ncols > 1 && y + itemh > contentsRect().bottom() ) { + y = contentsRect().y(); + x +=itemw; + } + if ( QRect( x, y, itemw, itemh ).contains( pos ) ) + break; + y += itemh; + ++row; + } + + if ( mi && ( !ignoreSeparator || !mi->isSeparator() ) ) + return row; + return -1; +} + +/*! + \internal + Returns the geometry of item number \a index. +*/ + +QRect QPopupMenu::itemGeometry( int index ) +{ + QMenuItem *mi; + QSize sz; + int row = 0, scrollh = 0; + int x = contentsRect().x(); + int y = contentsRect().y(); + QMenuItemListIt it( *mitems ); + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp) { + scrollh = style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + y += scrollh; + if(d->scroll.topScrollableIndex) { + for( ; (mi = it.current()) && row < d->scroll.topScrollableIndex; row++) + ++it; + if(!mi) { + row = 0; + it.toFirst(); + } + } + } + int itemw = contentsRect().width() / ncols; + while ( (mi=it.current()) ) { + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown && + y >= contentsRect().height() - scrollh) + break; + ++it; + if ( !mi->isVisible() ) { + ++row; + continue; + } + int itemh = itemHeight( mi ); + + sz = style().sizeFromContents(QStyle::CT_PopupMenuItem, this, + QSize(0, itemh), + QStyleOption(mi,maxPMWidth)); + sz = sz.expandedTo(QSize(itemw, sz.height())); + itemw = sz.width(); + itemh = sz.height(); + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown && + (y + itemh > contentsRect().height() - scrollh)) + itemh -= (y + itemh) - (contentsRect().height() - scrollh); + if ( ncols > 1 && y + itemh > contentsRect().bottom() ) { + y = contentsRect().y(); + x +=itemw; + } + if ( row == index ) + return QRect( x,y,itemw,itemh ); + y += itemh; + ++row; + } + + return QRect(0,0,0,0); +} + + +/*! + \internal + Calculates and sets the size of the popup menu, based on the size + of the items. +*/ + +QSize QPopupMenu::updateSize(bool force_update, bool do_resize) +{ + polish(); + if ( count() == 0 ) { + QSize ret = QSize( 50, 8 ); + if(do_resize) + setFixedSize( ret ); + badSize = TRUE; + return ret; + } + + int scrheight = 0; + if(d->scroll.scrollableSize) { + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp) + scrheight += style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown) + scrheight += style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + } + + if(badSize || force_update) { +#ifndef QT_NO_ACCEL + updateAccel( 0 ); +#endif + int height = 0; + int max_width = 0, max_height = 0; + QFontMetrics fm = fontMetrics(); + register QMenuItem *mi; + maxPMWidth = 0; + int maxWidgetWidth = 0; + tab = 0; + + for ( QMenuItemListIt it( *mitems ); it.current(); ++it ) { + mi = it.current(); + QWidget *miw = mi->widget(); + if (miw) { + if ( miw->parentWidget() != this ) + miw->reparent( this, QPoint(0,0), TRUE ); + // widget items musn't propgate mouse events + ((QPopupMenu*)miw)->setWFlags(WNoMousePropagation); + } + if ( mi->custom() ) + mi->custom()->setFont( font() ); + if ( mi->iconSet() != 0) + maxPMWidth = QMAX( maxPMWidth, + mi->iconSet()->pixmap( QIconSet::Small, QIconSet::Normal ).width() + 4 ); + } + + int dh = screenRect( geometry().center()).height(); + ncols = 1; + + for ( QMenuItemListIt it2( *mitems ); it2.current(); ++it2 ) { + mi = it2.current(); + if ( !mi->isVisible() ) + continue; + int w = 0; + int itemHeight = QPopupMenu::itemHeight( mi ); + + if ( mi->widget() ) { + QSize s( mi->widget()->sizeHint() ); + s = s.expandedTo( mi->widget()->minimumSize() ); + mi->widget()->resize( s ); + if ( s.width() > maxWidgetWidth ) + maxWidgetWidth = s.width(); + itemHeight = s.height(); + } else { + if( ! mi->isSeparator() ) { + if ( mi->custom() ) { + if ( mi->custom()->fullSpan() ) { + maxWidgetWidth = QMAX( maxWidgetWidth, + mi->custom()->sizeHint().width() ); + } else { + QSize s ( mi->custom()->sizeHint() ); + w += s.width(); + } + } + + w += maxPMWidth; + + if (! mi->text().isNull()) { + QString s = mi->text(); + int t; + if ( (t = s.find('\t')) >= 0 ) { // string contains tab + w += fm.width( s, t ); + w -= s.contains('&') * fm.width('&'); + w += s.contains("&&") * fm.width('&'); + int tw = fm.width( s.mid(t + 1) ); + if ( tw > tab) + tab = tw; + } else { + w += fm.width( s ); + w -= s.contains('&') * fm.width('&'); + w += s.contains("&&") * fm.width('&'); + } + } else if (mi->pixmap()) + w += mi->pixmap()->width(); + } else { + if ( mi->custom() ) { + QSize s ( mi->custom()->sizeHint() ); + w += s.width(); + } else { + w = itemHeight = 2; + } + } + + QSize sz = style().sizeFromContents(QStyle::CT_PopupMenuItem, this, + QSize(w, itemHeight), + QStyleOption(mi,maxPMWidth)); + + w = sz.width(); + itemHeight = sz.height(); + +#if defined(QT_CHECK_NULL) + if ( mi->text().isNull() && !mi->pixmap() && !mi->iconSet() && + !mi->isSeparator() && !mi->widget() && !mi->custom() ) + qWarning( "QPopupMenu: (%s) Popup has invalid menu item", + name( "unnamed" ) ); +#endif + } + height += itemHeight; + if(style().styleHint(QStyle::SH_PopupMenu_Scrollable, this)) { + if(scrheight && height >= d->scroll.scrollableSize - scrheight) { + height = d->scroll.scrollableSize - scrheight; + break; + } + } else if( height + 2*frameWidth() >= dh ) { + ncols++; + max_height = QMAX(max_height, height - itemHeight); + height = itemHeight; + } + if ( w > max_width ) + max_width = w; + } + if( ncols == 1 && !max_height ) + max_height = height; + + if(style().styleHint(QStyle::SH_PopupMenu_Scrollable, this)) { + height += scrheight; + setMouseTracking(TRUE); + } + + if ( tab ) + tab -= fontMetrics().minRightBearing(); + else + max_width -= fontMetrics().minRightBearing(); + + if ( max_width + tab < maxWidgetWidth ) + max_width = maxWidgetWidth - tab; + + const int fw = frameWidth(); + int extra_width = (fw+style().pixelMetric(QStyle::PM_PopupMenuFrameHorizontalExtra, this)) * 2, + extra_height = (fw+style().pixelMetric(QStyle::PM_PopupMenuFrameVerticalExtra, this)) * 2; + if ( ncols == 1 ) + d->calcSize = QSize( QMAX( minimumWidth(), max_width + tab + extra_width ), + QMAX( minimumHeight() , height + extra_height ) ); + else + d->calcSize = QSize( QMAX( minimumWidth(), (ncols*(max_width + tab)) + extra_width ), + QMAX( minimumHeight(), QMIN( max_height + extra_height + 1, dh ) ) ); + badSize = FALSE; + } + + { + // Position the widget items. It could be done in drawContents + // but this way we get less flicker. + QSize sz; + int x = contentsRect().x(); + int y = contentsRect().y(); + int itemw = contentsRect().width() / ncols; + for(QMenuItemListIt it(*mitems); it.current(); ++it) { + QMenuItem *mi = it.current(); + if ( !mi->isVisible() ) + continue; + + int itemh = itemHeight( mi ); + + sz = style().sizeFromContents(QStyle::CT_PopupMenuItem, this, + QSize(0, itemh), QStyleOption(mi,maxPMWidth)); + sz = sz.expandedTo(QSize(itemw, sz.height())); + itemw = sz.width(); + itemh = sz.height(); + + if ( ncols > 1 && y + itemh > contentsRect().bottom() ) { + y = contentsRect().y(); + x +=itemw; + } + if ( mi->widget() ) + mi->widget()->setGeometry( x, y, itemw, mi->widget()->height() ); + y += itemh; + } + } + + if( do_resize && size() != d->calcSize ) { + setMaximumSize( d->calcSize ); + d->calcSize = maximumSize(); //let the max size adjust it (virtual) + resize( d->calcSize ); + } + return d->calcSize; +} + + +#ifndef QT_NO_ACCEL +/*! + \internal + The \a parent is 0 when it is updated when a menu item has + changed a state, or it is something else if called from the menu bar. +*/ + +void QPopupMenu::updateAccel( QWidget *parent ) +{ + QMenuItemListIt it(*mitems); + register QMenuItem *mi; + + if ( parent ) { + delete autoaccel; + autoaccel = 0; + } else if ( !autoaccel ) { + // we have no parent. Rather than ignoring any accelerators we try to find this popup's main window + if ( tornOff ) { + parent = this; + } else { + QWidget *w = (QWidget *) this; + parent = w->parentWidget(); + while ( (!w->testWFlags(WType_TopLevel) || !w->testWFlags(WType_Popup)) && parent ) { + w = parent; + parent = parent->parentWidget(); + } + } + } + + if ( parent == 0 && autoaccel == 0 ) + return; + + if ( autoaccel ) // build it from scratch + autoaccel->clear(); + else { + // create an autoaccel in any case, even if we might not use + // it immediately. Maybe the user needs it later. + autoaccel = new QAccel( parent, this ); + connect( autoaccel, SIGNAL(activated(int)), + SLOT(accelActivated(int)) ); + connect( autoaccel, SIGNAL(activatedAmbiguously(int)), + SLOT(accelActivated(int)) ); + connect( autoaccel, SIGNAL(destroyed()), + SLOT(accelDestroyed()) ); + if ( accelDisabled ) + autoaccel->setEnabled( FALSE ); + } + while ( (mi=it.current()) ) { + ++it; + QKeySequence k = mi->key(); + if ( (int)k ) { + int id = autoaccel->insertItem( k, mi->id() ); +#ifndef QT_NO_WHATSTHIS + autoaccel->setWhatsThis( id, mi->whatsThis() ); +#endif + } + if ( !mi->text().isNull() || mi->custom() ) { + QString s = mi->text(); + int i = s.find('\t'); + + // Note: Only looking at the first key in the sequence! + if ( (int)k && (int)k != Key_unknown ) { + QString t = (QString)mi->key(); + if ( i >= 0 ) + s.replace( i+1, s.length()-i, t ); + else { + s += '\t'; + s += t; + } + } else if ( !k ) { + if ( i >= 0 ) + s.truncate( i ); + } + if ( s != mi->text() ) { + mi->setText( s ); + badSize = TRUE; + } + } + if ( mi->popup() && parent ) { // call recursively + // reuse + QPopupMenu* popup = mi->popup(); + if (!popup->avoid_circularity) { + popup->avoid_circularity = 1; + popup->updateAccel( parent ); + popup->avoid_circularity = 0; + } + } + } +} + +/*! + \internal + It would be better to check in the slot. +*/ + +void QPopupMenu::enableAccel( bool enable ) +{ + if ( autoaccel ) + autoaccel->setEnabled( enable ); + accelDisabled = !enable; // rememeber when updateAccel + QMenuItemListIt it(*mitems); + register QMenuItem *mi; + while ( (mi=it.current()) ) { // do the same for sub popups + ++it; + if ( mi->popup() ) // call recursively + mi->popup()->enableAccel( enable ); + } +} +#endif + +/*! + \reimp +*/ +void QPopupMenu::setFont( const QFont &font ) +{ + QWidget::setFont( font ); + badSize = TRUE; + if ( isVisible() ) { + updateSize(); + update(); + } +} + +/*! + \reimp +*/ +void QPopupMenu::show() +{ + if ( !isPopup() && isVisible() ) + hide(); + + if ( isVisible() ) { + supressAboutToShow = FALSE; + QWidget::show(); + return; + } + if (!supressAboutToShow) + emit aboutToShow(); + else + supressAboutToShow = FALSE; + performDelayedChanges(); + updateSize(TRUE); + QWidget::show(); + popupActive = -1; + if(style().styleHint(QStyle::SH_PopupMenu_SubMenuPopupDelay, this)) + d->mouseMoveBuffer = QRegion(); + d->ignoremousepos = QCursor::pos(); +} + +/*! + \reimp +*/ + +void QPopupMenu::hide() +{ + if ( syncMenu == this && qApp ) { + qApp->exit_loop(); + syncMenu = 0; + } + + if ( !isVisible() ) { + QWidget::hide(); + return; + } + emit aboutToHide(); + + actItem = popupActive = -1; + if(style().styleHint(QStyle::SH_PopupMenu_SubMenuPopupDelay, this)) + d->mouseMoveBuffer = QRegion(); + mouseBtDn = FALSE; // mouse button up +#if defined(QT_ACCESSIBILITY_SUPPORT) + QAccessible::updateAccessibility( this, 0, QAccessible::PopupMenuEnd ); +#endif +#ifndef QT_NO_MENUBAR + QMenuData *top = this; // find top level + while ( top->parentMenu ) + top = top->parentMenu; + if( top->isMenuBar ) + x11SetWindowType( X11WindowTypePopup ); // reset +#endif + parentMenu = 0; + hidePopups(); + QWidget::hide(); +} + + +/*! + Calculates the height in pixels of the item in row \a row. +*/ +int QPopupMenu::itemHeight( int row ) const +{ + return itemHeight( mitems->at( row ) ); +} + +/*! + \overload + + Calculates the height in pixels of the menu item \a mi. +*/ +int QPopupMenu::itemHeight( QMenuItem *mi ) const +{ + if ( mi->widget() ) + return mi->widget()->height(); + if ( mi->custom() && mi->custom()->fullSpan() ) + return mi->custom()->sizeHint().height(); + + QFontMetrics fm(fontMetrics()); + int h = 0; + if ( mi->isSeparator() ) // separator height + h = 2; + else if ( mi->pixmap() ) // pixmap height + h = mi->pixmap()->height(); + else // text height + h = fm.height(); + + if ( !mi->isSeparator() && mi->iconSet() != 0 ) + h = QMAX(h, mi->iconSet()->pixmap( QIconSet::Small, + QIconSet::Normal ).height()); + if ( mi->custom() ) + h = QMAX(h, mi->custom()->sizeHint().height()); + + return h; +} + + +/*! + Draws menu item \a mi in the area \a x, \a y, \a w, \a h, using + painter \a p. The item is drawn active if \a act is TRUE or drawn + inactive if \a act is FALSE. The rightmost \a tab_ pixels are used + for accelerator text. + + \sa QStyle::drawControl() +*/ +void QPopupMenu::drawItem( QPainter* p, int tab_, QMenuItem* mi, + bool act, int x, int y, int w, int h) +{ + QStyle::SFlags flags = QStyle::Style_Default; + if (isEnabled() && mi->isEnabledAndVisible() && (!mi->popup() || mi->popup()->isEnabled()) ) + flags |= QStyle::Style_Enabled; + if (act) + flags |= QStyle::Style_Active; + if (mouseBtDn) + flags |= QStyle::Style_Down; + + const QColorGroup &cg = ((flags&QStyle::Style_Enabled) ? colorGroup() : palette().disabled() ); + + if ( mi->custom() && mi->custom()->fullSpan() ) { + QMenuItem dummy; + style().drawControl(QStyle::CE_PopupMenuItem, p, this, QRect(x, y, w, h), cg, + flags, QStyleOption(&dummy,maxPMWidth,tab_)); + mi->custom()->paint( p, cg, act, flags&QStyle::Style_Enabled, x, y, w, h ); + } else + style().drawControl(QStyle::CE_PopupMenuItem, p, this, QRect(x, y, w, h), cg, + flags, QStyleOption(mi,maxPMWidth,tab_)); +} + + +/*! + Draws all menu items using painter \a p. +*/ +void QPopupMenu::drawContents( QPainter* p ) +{ + QMenuItemListIt it(*mitems); + QMenuItem *mi = 0; + int row = 0; + int x = contentsRect().x(); + int y = contentsRect().y(); + if(d->scroll.scrollable) { + if(d->scroll.topScrollableIndex) { + for( ; (mi = it.current()) && row < d->scroll.topScrollableIndex; row++) + ++it; + if(!mi) + it.toFirst(); + } + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp) { + QRect rect(x, y, contentsRect().width(), + style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this)); + if(!p->hasClipping() || p->clipRegion().contains(rect)) { + QStyle::SFlags flags = QStyle::Style_Up; + if (isEnabled()) + flags |= QStyle::Style_Enabled; + style().drawControl(QStyle::CE_PopupMenuScroller, p, this, rect, + colorGroup(), flags, QStyleOption(maxPMWidth)); + } + y += rect.height(); + } + } + + int itemw = contentsRect().width() / ncols; + QSize sz; + QStyle::SFlags flags; + while ( (mi=it.current()) ) { + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown && + y >= contentsRect().height() - style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this)) + break; + ++it; + if ( !mi->isVisible() ) { + ++row; + continue; + } + int itemh = itemHeight( mi ); + sz = style().sizeFromContents(QStyle::CT_PopupMenuItem, this, + QSize(0, itemh), + QStyleOption(mi,maxPMWidth,0) + ); + sz = sz.expandedTo(QSize(itemw, sz.height())); + itemw = sz.width(); + itemh = sz.height(); + + if ( ncols > 1 && y + itemh > contentsRect().bottom() ) { + if ( y < contentsRect().bottom() ) { + QRect rect(x, y, itemw, contentsRect().bottom() - y); + if(!p->hasClipping() || p->clipRegion().contains(rect)) { + flags = QStyle::Style_Default; + if (isEnabled() && mi->isEnabledAndVisible()) + flags |= QStyle::Style_Enabled; + style().drawControl(QStyle::CE_PopupMenuItem, p, this, rect, + colorGroup(), flags, QStyleOption((QMenuItem*)0,maxPMWidth)); + } + } + y = contentsRect().y(); + x +=itemw; + } + if (!mi->widget() && (!p->hasClipping() || p->clipRegion().contains(QRect(x, y, itemw, itemh)))) + drawItem( p, tab, mi, row == actItem, x, y, itemw, itemh ); + y += itemh; + ++row; + } + if ( y < contentsRect().bottom() ) { + QRect rect(x, y, itemw, contentsRect().bottom() - y); + if(!p->hasClipping() || p->clipRegion().contains(rect)) { + flags = QStyle::Style_Default; + if ( isEnabled() ) + flags |= QStyle::Style_Enabled; + style().drawControl(QStyle::CE_PopupMenuItem, p, this, rect, + colorGroup(), flags, QStyleOption((QMenuItem*)0,maxPMWidth)); + } + } + if( d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown ) { + int sh = style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + QRect rect(x, contentsRect().height() - sh, contentsRect().width(), sh); + if(!p->hasClipping() || p->clipRegion().contains(rect)) { + QStyle::SFlags flags = QStyle::Style_Down; + if (isEnabled()) + flags |= QStyle::Style_Enabled; + style().drawControl(QStyle::CE_PopupMenuScroller, p, this, rect, + colorGroup(), flags, QStyleOption(maxPMWidth)); + } + } +#if defined( DEBUG_SLOPPY_SUBMENU ) + if ( style().styleHint(QStyle::SH_PopupMenu_SloppySubMenus, this )) { + p->setClipRegion( d->mouseMoveBuffer ); + p->fillRect( d->mouseMoveBuffer.boundingRect(), colorGroup().brush( QColorGroup::Highlight ) ); + } +#endif +} + + +/***************************************************************************** + Event handlers + *****************************************************************************/ + +/*! + \reimp +*/ + +void QPopupMenu::paintEvent( QPaintEvent *e ) +{ + QFrame::paintEvent( e ); +} + +/*! + \reimp +*/ + +void QPopupMenu::closeEvent( QCloseEvent * e) { + e->accept(); + byeMenuBar(); +} + + +/*! + \reimp +*/ + +void QPopupMenu::mousePressEvent( QMouseEvent *e ) +{ + int sh = style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + if (rect().contains(e->pos()) && + ((d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp && e->pos().y() <= sh) || //up + (d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown && + e->pos().y() >= contentsRect().height() - sh))) //down + return; + + mouseBtDn = TRUE; // mouse button down + int item = itemAtPos( e->pos() ); + if ( item == -1 ) { + if ( !rect().contains(e->pos()) && !tryMenuBar(e) ) { + byeMenuBar(); + } + return; + } + register QMenuItem *mi = mitems->at(item); + if ( item != actItem ) // new item activated + setActiveItem( item ); + + QPopupMenu *popup = mi->popup(); + if ( popup ) { + if ( popup->isVisible() ) { // sub menu already open + int pactItem = popup->actItem; + popup->actItem = -1; + popup->hidePopups(); + popup->updateRow( pactItem ); + } else { // open sub menu + hidePopups(); + popupSubMenuLater( 20, this ); + } + } else { + hidePopups(); + } +} + +/*! + \reimp +*/ + +void QPopupMenu::mouseReleaseEvent( QMouseEvent *e ) +{ + // do not hide a standalone context menu on press-release, unless + // the user moved the mouse significantly + if ( !parentMenu && !mouseBtDn && actItem < 0 && motion < 6 ) + return; + + mouseBtDn = FALSE; + + // if the user released the mouse outside the menu, pass control + // to the menubar or our parent menu + int sh = style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + if ( !rect().contains( e->pos() ) && tryMenuBar(e) ) + return; + else if((d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp && e->pos().y() <= sh) || //up + (d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown && + e->pos().y() >= contentsRect().height() - sh)) //down + return; + + if ( actItem < 0 ) { // we do not have an active item + // if the release is inside without motion (happens with + // oversized popup menus on small screens), ignore it + if ( rect().contains( e->pos() ) && motion < 6 ) + return; + else + byeMenuBar(); + } else { // selected menu item! + register QMenuItem *mi = mitems->at(actItem); + if ( mi ->widget() ) { + QWidget* widgetAt = QApplication::widgetAt( e->globalPos(), TRUE ); + if ( widgetAt && widgetAt != this ) { + QMouseEvent me( e->type(), widgetAt->mapFromGlobal( e->globalPos() ), + e->globalPos(), e->button(), e->state() ); + QApplication::sendEvent( widgetAt, &me ); + } + } + QPopupMenu *popup = mi->popup(); +#ifndef QT_NO_WHATSTHIS + bool b = QWhatsThis::inWhatsThisMode(); +#else + const bool b = FALSE; +#endif + if ( !mi->isEnabledAndVisible() ) { +#ifndef QT_NO_WHATSTHIS + if ( b ) { + actItem = -1; + updateItem( mi->id() ); + byeMenuBar(); + actSig( mi->id(), b); + } +#endif + } else if ( popup ) { + popup->setFirstItemActive(); + } else { // normal menu item + byeMenuBar(); // deactivate menu bar + if ( mi->isEnabledAndVisible() ) { + actItem = -1; + updateItem( mi->id() ); + active_popup_menu = this; + QGuardedPtr<QSignal> signal = mi->signal(); + actSig( mi->id(), b ); + if ( signal && !b ) + signal->activate(); + active_popup_menu = 0; + } + } + } +} + +/*! + \reimp +*/ + +void QPopupMenu::mouseMoveEvent( QMouseEvent *e ) +{ + if( e->globalPos() == d->ignoremousepos ) { + return; + } + d->ignoremousepos = QPoint(); + + motion++; + + if ( parentMenu && parentMenu->isPopupMenu ) { + QPopupMenu* p = (QPopupMenu*)parentMenu; + int myIndex; + + p->findPopup( this, &myIndex ); + QPoint pPos = p->mapFromParent( e->globalPos() ); + if ( p->actItem != myIndex && !p->rect().contains( pPos ) ) + p->setActiveItem( myIndex ); + + if ( style().styleHint(QStyle::SH_PopupMenu_SloppySubMenus, this )) { + p->d->mouseMoveBuffer = QRegion(); +#ifdef DEBUG_SLOPPY_SUBMENU + p->repaint(); +#endif + } + } + + if ( (e->state() & Qt::MouseButtonMask) == 0 && + !hasMouseTracking() ) + return; + + if(d->scroll.scrollable && e->pos().x() >= rect().x() && e->pos().x() <= rect().width()) { + int sh = style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + if((d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp && e->pos().y() <= sh) || + (d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown && e->pos().y() >= height()-sh)) { + if(!d->scroll.scrolltimer) { + d->scroll.scrolltimer = new QTimer(this, "popup scroll timer"); + QObject::connect( d->scroll.scrolltimer, SIGNAL(timeout()), + this, SLOT(subScrollTimer()) ); + } + if(!d->scroll.scrolltimer->isActive()) + d->scroll.scrolltimer->start(40); + return; + } + } + + int item = itemAtPos( e->pos() ); + if ( item == -1 ) { // no valid item + if( !d->hasmouse ) { + tryMenuBar( e ); + return; + } + d->hasmouse = 0; + int lastActItem = actItem; + actItem = -1; + if ( lastActItem >= 0 ) + updateRow( lastActItem ); + if ( lastActItem > 0 || + ( !rect().contains( e->pos() ) && !tryMenuBar( e ) ) ) { + popupSubMenuLater(style().styleHint(QStyle::SH_PopupMenu_SubMenuPopupDelay, + this), this); + } + } else { // mouse on valid item + // but did not register mouse press + d->hasmouse = 1; + if ( (e->state() & Qt::MouseButtonMask) && !mouseBtDn ) + mouseBtDn = TRUE; // so mouseReleaseEvent will pop down + + register QMenuItem *mi = mitems->at( item ); + + if ( mi->widget() ) { + QWidget* widgetAt = QApplication::widgetAt( e->globalPos(), TRUE ); + if ( widgetAt && widgetAt != this ) { + QMouseEvent me( e->type(), widgetAt->mapFromGlobal( e->globalPos() ), + e->globalPos(), e->button(), e->state() ); + QApplication::sendEvent( widgetAt, &me ); + } + } + + if ( actItem == item ) + return; + + if ( style().styleHint(QStyle::SH_PopupMenu_SloppySubMenus, this) && + d->mouseMoveBuffer.contains( e->pos() ) ) { + actItem = item; + popupSubMenuLater( style().styleHint(QStyle::SH_PopupMenu_SubMenuPopupDelay, this) * 6, + this ); + return; + } + + if ( mi->popup() || ( popupActive >= 0 && popupActive != item )) + popupSubMenuLater( style().styleHint(QStyle::SH_PopupMenu_SubMenuPopupDelay, this), + this ); + else if ( singleSingleShot ) + singleSingleShot->stop(); + + if ( item != actItem ) + setActiveItem( item ); + } +} + + +/*! + \reimp +*/ + +void QPopupMenu::keyPressEvent( QKeyEvent *e ) +{ + /* + I get nothing but complaints about this. -Brad + + - if (mouseBtDn && actItem >= 0) { + - if (e->key() == Key_Shift || + - e->key() == Key_Control || + - e->key() == Key_Alt) + - return; + - + - QMenuItem *mi = mitems->at(actItem); + - int modifier = (((e->state() & ShiftButton) ? SHIFT : 0) | + - ((e->state() & ControlButton) ? CTRL : 0) | + - ((e->state() & AltButton) ? ALT : 0)); + - + - #ifndef QT_NO_ACCEL + - if (mi) + - setAccel(modifier + e->key(), mi->id()); + - #endif + - return; + - } + */ + + QMenuItem *mi = 0; + QPopupMenu *popup; + int dy = 0; + bool ok_key = TRUE; + + int key = e->key(); + if ( QApplication::reverseLayout() ) { + // in reverse mode opening and closing keys for submenues are reversed + if ( key == Key_Left ) + key = Key_Right; + else if ( key == Key_Right ) + key = Key_Left; + } + + switch ( key ) { + case Key_Tab: + // ignore tab, otherwise it will be passed to the menubar + break; + + case Key_Up: + dy = -1; + break; + + case Key_Down: + dy = 1; + break; + + case Key_Alt: + if ( style().styleHint(QStyle::SH_MenuBar_AltKeyNavigation, this) ) + byeMenuBar(); + break; + + case Key_Escape: + if ( tornOff ) { + close(); + return; + } + // just hide one + { + QMenuData* p = parentMenu; + hide(); +#ifndef QT_NO_MENUBAR + if ( p && p->isMenuBar ) + ((QMenuBar*) p)->goodbye( TRUE ); +#endif + } + break; + + case Key_Left: + if ( ncols > 1 && actItem >= 0 ) { + QRect r( itemGeometry( actItem ) ); + int newActItem = itemAtPos( QPoint( r.left() - 1, r.center().y() ) ); + if ( newActItem >= 0 ) { + setActiveItem( newActItem ); + break; + } + } + if ( parentMenu && parentMenu->isPopupMenu ) { + ((QPopupMenu *)parentMenu)->hidePopups(); + if ( singleSingleShot ) + singleSingleShot->stop(); + break; + } + + ok_key = FALSE; + break; + + case Key_Right: + if ( actItem >= 0 && ( mi=mitems->at(actItem) )->isEnabledAndVisible() && (popup=mi->popup()) ) { + hidePopups(); + if ( singleSingleShot ) + singleSingleShot->stop(); + // ### The next two lines were switched to fix the problem with the first item of the + // submenu not being highlighted...any reason why they should have been the other way?? + subMenuTimer(); + popup->setFirstItemActive(); + break; + } else if ( actItem == -1 && ( parentMenu && !parentMenu->isMenuBar )) { + dy = 1; + break; + } + if ( ncols > 1 && actItem >= 0 ) { + QRect r( itemGeometry( actItem ) ); + int newActItem = itemAtPos( QPoint( r.right() + 1, r.center().y() ) ); + if ( newActItem >= 0 ) { + setActiveItem( newActItem ); + break; + } + } + ok_key = FALSE; + break; + + case Key_Space: + if (! style().styleHint(QStyle::SH_PopupMenu_SpaceActivatesItem, this)) + break; + // for motif, fall through + + case Key_Return: + case Key_Enter: + { + if ( actItem < 0 ) + break; +#ifndef QT_NO_WHATSTHIS + bool b = QWhatsThis::inWhatsThisMode(); +#else + const bool b = FALSE; +#endif + mi = mitems->at( actItem ); + if ( !mi->isEnabled() && !b ) + break; + popup = mi->popup(); + if ( popup ) { + hidePopups(); + popupSubMenuLater( 20, this ); + popup->setFirstItemActive(); + } else { + actItem = -1; + updateItem( mi->id() ); + byeMenuBar(); + if ( mi->isEnabledAndVisible() || b ) { + active_popup_menu = this; + QGuardedPtr<QSignal> signal = mi->signal(); + actSig( mi->id(), b ); + if ( signal && !b ) + signal->activate(); + active_popup_menu = 0; + } + } + } + break; +#ifndef QT_NO_WHATSTHIS + case Key_F1: + if ( actItem < 0 || e->state() != ShiftButton) + break; + mi = mitems->at( actItem ); + if ( !mi->whatsThis().isNull() ){ + if ( !QWhatsThis::inWhatsThisMode() ) + QWhatsThis::enterWhatsThisMode(); + QRect r( itemGeometry( actItem) ); + QWhatsThis::leaveWhatsThisMode( mi->whatsThis(), mapToGlobal( r.bottomLeft()) ); + } + //fall-through! +#endif + default: + ok_key = FALSE; + + } + if ( !ok_key && + ( !e->state() || e->state() == AltButton || e->state() == ShiftButton ) && + e->text().length()==1 ) { + QChar c = e->text()[0].upper(); + + QMenuItemListIt it(*mitems); + QMenuItem* first = 0; + QMenuItem* currentSelected = 0; + QMenuItem* firstAfterCurrent = 0; + + register QMenuItem *m; + mi = 0; + int indx = 0; + int clashCount = 0; + while ( (m=it.current()) ) { + ++it; + QString s = m->text(); + if ( !s.isEmpty() ) { + int i = s.find( '&' ); + while ( i >= 0 && i < (int)s.length() - 1 ) { + if ( s[i+1].upper() == c ) { + ok_key = TRUE; + clashCount++; + if ( !first ) + first = m; + if ( indx == actItem ) + currentSelected = m; + else if ( !firstAfterCurrent && currentSelected ) + firstAfterCurrent = m; + break; + } else if ( s[i+1] == '&' ) { + i = s.find( '&', i+2 ); + } else { + break; + } + } + } + if ( mi ) + break; + indx++; + } + + if ( 1 == clashCount ) { // No clashes, continue with selection + mi = first; + popup = mi->popup(); + if ( popup ) { + setActiveItem( indexOf(mi->id()) ); + hidePopups(); + popupSubMenuLater( 20, this ); + popup->setFirstItemActive(); + } else { + byeMenuBar(); +#ifndef QT_NO_WHATSTHIS + bool b = QWhatsThis::inWhatsThisMode(); +#else + const bool b = FALSE; +#endif + if ( mi->isEnabledAndVisible() || b ) { + active_popup_menu = this; + QGuardedPtr<QSignal> signal = mi->signal(); + actSig( mi->id(), b ); + if ( signal && !b ) + signal->activate(); + active_popup_menu = 0; + } + } + } else if ( clashCount > 1 ) { // Clashes, highlight next... + // If there's clashes and no one is selected, use first one + // or if there is no clashes _after_ current, use first one + if ( !currentSelected || (currentSelected && !firstAfterCurrent)) + dy = indexOf( first->id() ) - actItem; + else + dy = indexOf( firstAfterCurrent->id() ) - actItem; + } + } +#ifndef QT_NO_MENUBAR + if ( !ok_key ) { // send to menu bar + register QMenuData *top = this; // find top level + while ( top->parentMenu ) + top = top->parentMenu; + if ( top->isMenuBar ) { + int beforeId = top->actItem; + ((QMenuBar*)top)->tryKeyEvent( this, e ); + if ( beforeId != top->actItem ) + ok_key = TRUE; + } + } +#endif + if ( actItem < 0 ) { + if ( dy > 0 ) { + setFirstItemActive(); + } else if ( dy < 0 ) { + QMenuItemListIt it(*mitems); + it.toLast(); + register QMenuItem *mi; + int ai = count() - 1; + while ( (mi=it.current()) ) { + --it; + if ( !mi->isSeparator() && mi->id() != QMenuData::d->aInt ) { + setActiveItem( ai ); + return; + } + ai--; + } + actItem = -1; + } + return; + } + + if ( dy ) { // highlight next/prev + register int i = actItem; + int c = mitems->count(); + for(int n = c; n; n--) { + i = i + dy; + if(d->scroll.scrollable) { + if(d->scroll.scrolltimer) + d->scroll.scrolltimer->stop(); + if(i < 0) + i = 0; + else if(i >= c) + i = c - 1; + } else { + if ( i == c ) + i = 0; + else if ( i < 0 ) + i = c - 1; + } + mi = mitems->at( i ); + if ( !mi || !mi->isVisible() ) + continue; + + if ( !mi->isSeparator() && + ( style().styleHint(QStyle::SH_PopupMenu_AllowActiveAndDisabled, this) + || mi->isEnabledAndVisible() ) ) + break; + } + if ( i != actItem ) + setActiveItem( i ); + if(d->scroll.scrollable) { //need to scroll to make it visible? + QRect r = itemGeometry(actItem); + if(r.isNull() || r.height() < itemHeight(mitems->at(actItem))) { + bool refresh = FALSE; + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp && dy == -1) { //up + if(d->scroll.topScrollableIndex >= 0) { + d->scroll.topScrollableIndex--; + refresh = TRUE; + } + } else if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown) { //down + QMenuItemListIt it(*mitems); + int sh = style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + for(int i = 0, y = ((d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp) ? sh : 0); it.current(); i++, ++it) { + if(i >= d->scroll.topScrollableIndex) { + int itemh = itemHeight(it.current()); + QSize sz = style().sizeFromContents(QStyle::CT_PopupMenuItem, this, + QSize(0, itemh), + QStyleOption(it.current(),maxPMWidth,0)); + y += sz.height(); + if(y > (contentsRect().height()-sh)) { + if(sz.height() > sh || !it.atLast()) + d->scroll.topScrollableIndex++; + refresh = TRUE; + break; + } + } + } + } + if(refresh) { + updateScrollerState(); + update(); + } + } + } + } + +#ifdef Q_OS_WIN32 + if ( !ok_key && + !( e->key() == Key_Control || e->key() == Key_Shift || e->key() == Key_Meta ) ) + qApp->beep(); +#endif // Q_OS_WIN32 +} + + +/*! + \reimp +*/ + +void QPopupMenu::timerEvent( QTimerEvent *e ) +{ + QFrame::timerEvent( e ); +} + +/*! + \reimp +*/ +void QPopupMenu::leaveEvent( QEvent * ) +{ + d->hasmouse = 0; + if ( testWFlags( WStyle_Tool ) && style().styleHint(QStyle::SH_PopupMenu_MouseTracking, this) ) { + int lastActItem = actItem; + actItem = -1; + if ( lastActItem >= 0 ) + updateRow( lastActItem ); + } +} + +/*! + \reimp +*/ +void QPopupMenu::styleChange( QStyle& old ) +{ + QFrame::styleChange( old ); + setMouseTracking(style().styleHint(QStyle::SH_PopupMenu_MouseTracking, this)); + style().polishPopupMenu( this ); + updateSize(TRUE); +} + +/*!\reimp + */ +void QPopupMenu::enabledChange( bool ) +{ + if ( QMenuData::d->aWidget ) // torn-off menu + QMenuData::d->aWidget->setEnabled( isEnabled() ); +} + + +/*! + If a popup menu does not fit on the screen it lays itself out so + that it does fit. It is style dependent what layout means (for + example, on Windows it will use multiple columns). + + This functions returns the number of columns necessary. + + \sa sizeHint() +*/ +int QPopupMenu::columns() const +{ + return ncols; +} + +/* This private slot handles the scrolling popupmenu */ +void QPopupMenu::subScrollTimer() { + QPoint pos = QCursor::pos(); + if(!d->scroll.scrollable || !isVisible()) { + if(d->scroll.scrolltimer) + d->scroll.scrolltimer->stop(); + return; + } else if(pos.x() > x() + width() || pos.x() < x()) { + return; + } + int sh = style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + if(!d->scroll.lastScroll.isValid()) { + d->scroll.lastScroll = QTime::currentTime(); + } else { + int factor=0; + if(pos.y() < y()) + factor = y() - pos.y(); + else if(pos.y() > y() + height()) + factor = pos.y() - (y() + height()); + int msecs = 250 - ((factor / 10) * 40); + if(d->scroll.lastScroll.msecsTo(QTime::currentTime()) < QMAX(0, msecs)) + return; + d->scroll.lastScroll = QTime::currentTime(); + } + if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp && pos.y() <= y() + sh) { //up + if(d->scroll.topScrollableIndex > 0) { + d->scroll.topScrollableIndex--; + updateScrollerState(); + update(contentsRect()); + } + } else if(d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollDown && + pos.y() >= (y() + contentsRect().height()) - sh) { //down + QMenuItemListIt it(*mitems); + for(int i = 0, y = contentsRect().y() + sh; it.current(); i++, ++it) { + if(i >= d->scroll.topScrollableIndex) { + int itemh = itemHeight(it.current()); + QSize sz = style().sizeFromContents(QStyle::CT_PopupMenuItem, this, QSize(0, itemh), + QStyleOption(it.current(),maxPMWidth,0)); + y += sz.height(); + if(y > contentsRect().height() - sh) { + d->scroll.topScrollableIndex++; + updateScrollerState(); + update(contentsRect()); + break; + } + } + } + } +} + +/* This private slot handles the delayed submenu effects */ + +void QPopupMenu::subMenuTimer() { + + if ( !isVisible() || (actItem < 0 && popupActive < 0) || actItem == popupActive ) + return; + + if ( popupActive >= 0 ) { + hidePopups(); + popupActive = -1; + } + + // hidePopups() may change actItem etc. + if ( !isVisible() || actItem < 0 || actItem == popupActive ) + return; + + QMenuItem *mi = mitems->at(actItem); + if ( !mi || !mi->isEnabledAndVisible() ) + return; + + QPopupMenu *popup = mi->popup(); + if ( !popup || !popup->isEnabled() ) + return; + + //avoid circularity + if ( popup->isVisible() ) + return; + + Q_ASSERT( popup->parentMenu == 0 ); + popup->parentMenu = this; // set parent menu + + emit popup->aboutToShow(); + supressAboutToShow = TRUE; + + + QRect r( itemGeometry( actItem ) ); + QPoint p; + QSize ps = popup->sizeHint(); + // GUI Style + int gs = style().styleHint(QStyle::SH_GUIStyle); + int arrowHMargin, arrowVMargin; + if (gs == GtkStyle) { + arrowHMargin = gtkArrowHMargin; + arrowVMargin = gtkArrowVMargin; + } else { + arrowHMargin = motifArrowHMargin; + arrowVMargin = motifArrowVMargin; + } + if( QApplication::reverseLayout() ) { + p = QPoint( r.left() + arrowHMargin - ps.width(), r.top() + arrowVMargin ); + p = mapToGlobal( p ); + + bool right = FALSE; + if ( ( parentMenu && parentMenu->isPopupMenu && + ((QPopupMenu*)parentMenu)->geometry().x() < geometry().x() ) || + p.x() < screenRect( p ).left()) + right = TRUE; + if ( right && (ps.width() > screenRect( p ).right() - mapToGlobal( r.topRight() ).x() ) ) + right = FALSE; + if ( right ) + p.setX( mapToGlobal( r.topRight() ).x() ); + } else { + p = QPoint( r.right() - arrowHMargin, r.top() + arrowVMargin ); + p = mapToGlobal( p ); + + bool left = FALSE; + if ( ( parentMenu && parentMenu->isPopupMenu && + ((QPopupMenu*)parentMenu)->geometry().x() > geometry().x() ) || + p.x() + ps.width() > screenRect( p ).right() ) + left = TRUE; + if ( left && (ps.width() > mapToGlobal( r.topLeft() ).x() ) ) + left = FALSE; + if ( left ) + p.setX( mapToGlobal( r.topLeft() ).x() - ps.width() ); + } + QRect pr = popup->itemGeometry(popup->count() - 1); + if (p.y() + ps.height() > screenRect( p ).bottom() && + p.y() - ps.height() + (QCOORD) pr.height() >= screenRect( p ).top()) + p.setY( p.y() - ps.height() + (QCOORD) pr.height()); + + if ( style().styleHint(QStyle::SH_PopupMenu_SloppySubMenus, this )) { + QPoint cur = QCursor::pos(); + if ( r.contains( mapFromGlobal( cur ) ) ) { + QPoint pts[4]; + pts[0] = QPoint( cur.x(), cur.y() - 2 ); + pts[3] = QPoint( cur.x(), cur.y() + 2 ); + if ( p.x() >= cur.x() ) { + pts[1] = QPoint( geometry().right(), p.y() ); + pts[2] = QPoint( geometry().right(), p.y() + ps.height() ); + } else { + pts[1] = QPoint( p.x() + ps.width(), p.y() ); + pts[2] = QPoint( p.x() + ps.width(), p.y() + ps.height() ); + } + QPointArray points( 4 ); + for( int i = 0; i < 4; i++ ) + points.setPoint( i, mapFromGlobal( pts[i] ) ); + d->mouseMoveBuffer = QRegion( points ); + repaint(); + } + } + + popupActive = actItem; + popup->popup( p ); +} + +void QPopupMenu::allowAnimation() +{ + preventAnimation = FALSE; +} + +void QPopupMenu::updateRow( int row ) +{ + if ( !isVisible() ) + return; + + if ( badSize ) { + updateSize(); + update(); + return; + } + updateSize(); + QRect r = itemGeometry( row ); + if ( !r.isNull() ) // can happen via the scroller + repaint( r ); +} + + +/*! + \overload + + Executes this popup synchronously. + + Opens the popup menu so that the item number \a indexAtPoint will + be at the specified \e global position \a pos. To translate a + widget's local coordinates into global coordinates, use + QWidget::mapToGlobal(). + + The return code is the id of the selected item in either the popup + menu or one of its submenus, or -1 if no item is selected + (normally because the user pressed Esc). + + Note that all signals are emitted as usual. If you connect a menu + item to a slot and call the menu's exec(), you get the result both + via the signal-slot connection and in the return value of exec(). + + Common usage is to position the popup at the current mouse + position: + \code + exec( QCursor::pos() ); + \endcode + or aligned to a widget: + \code + exec( somewidget.mapToGlobal(QPoint(0, 0)) ); + \endcode + + When positioning a popup with exec() or popup(), bear in mind that + you cannot rely on the popup menu's current size(). For + performance reasons, the popup adapts its size only when + necessary. So in many cases, the size before and after the show is + different. Instead, use sizeHint(). It calculates the proper size + depending on the menu's current contents. + + \sa popup(), sizeHint() +*/ + +int QPopupMenu::exec( const QPoint & pos, int indexAtPoint ) +{ + snapToMouse = TRUE; + if ( !qApp ) + return -1; + + QPopupMenu* priorSyncMenu = syncMenu; + + syncMenu = this; + syncMenuId = -1; + + QGuardedPtr<QPopupMenu> that = this; + connectModal( that, TRUE ); + popup( pos, indexAtPoint ); + qApp->enter_loop(); + connectModal( that, FALSE ); + + syncMenu = priorSyncMenu; + return syncMenuId; +} + + + +/* + Connect the popup and all its submenus to modalActivation() if + \a doConnect is true, otherwise disconnect. + */ +void QPopupMenu::connectModal( QPopupMenu* receiver, bool doConnect ) +{ + if ( !receiver ) + return; + + connectModalRecursionSafety = doConnect; + + if ( doConnect ) + connect( this, SIGNAL(activated(int)), + receiver, SLOT(modalActivation(int)) ); + else + disconnect( this, SIGNAL(activated(int)), + receiver, SLOT(modalActivation(int)) ); + + QMenuItemListIt it(*mitems); + register QMenuItem *mi; + while ( (mi=it.current()) ) { + ++it; + if ( mi->popup() && mi->popup() != receiver + && (bool)(mi->popup()->connectModalRecursionSafety) != doConnect ) + mi->popup()->connectModal( receiver, doConnect ); //avoid circular + } +} + + +/*! + Executes this popup synchronously. + + This is equivalent to \c{exec(mapToGlobal(QPoint(0,0)))}. In most + situations you'll want to specify the position yourself, for + example at the current mouse position: + \code + exec(QCursor::pos()); + \endcode + or aligned to a widget: + \code + exec(somewidget.mapToGlobal(QPoint(0,0))); + \endcode +*/ + +int QPopupMenu::exec() +{ + return exec(mapToGlobal(QPoint(0,0))); +} + + +/* Internal slot used for exec(). */ + +void QPopupMenu::modalActivation( int id ) +{ + syncMenuId = id; +} + + +/*! + Sets the currently active item to index \a i and repaints as necessary. +*/ + +void QPopupMenu::setActiveItem( int i ) +{ + int lastActItem = actItem; + actItem = i; + if ( lastActItem >= 0 ) + updateRow( lastActItem ); + if ( i >= 0 && i != lastActItem ) + updateRow( i ); + QMenuItem *mi = mitems->at( actItem ); + if ( !mi ) + return; + + if ( mi->widget() && mi->widget()->isFocusEnabled() ) { + mi->widget()->setFocus(); + } else { + setFocus(); + QRect mfrect = itemGeometry( actItem ); + setMicroFocusHint( mfrect.x(), mfrect.y(), mfrect.width(), mfrect.height(), FALSE ); + } + if ( mi->id() != -1 ) + hilitSig( mi->id() ); +#ifndef QT_NO_WHATSTHIS + if (whatsThisItem && whatsThisItem != mi) { + qWhatsThisBDH(); + } + whatsThisItem = mi; +#endif +} + + +/*! + \reimp +*/ +QSize QPopupMenu::sizeHint() const +{ + constPolish(); + QPopupMenu* that = (QPopupMenu*) this; + //We do not need a resize here, just the sizeHint.. + return that->updateSize(FALSE).expandedTo( QApplication::globalStrut() ); +} + + +/*! + \overload + + Returns the id of the item at \a pos, or -1 if there is no item + there or if it is a separator. +*/ +int QPopupMenu::idAt( const QPoint& pos ) const +{ + return idAt( itemAtPos( pos ) ); +} + + +/*! + \fn int QPopupMenu::idAt( int index ) const + + Returns the identifier of the menu item at position \a index in + the internal list, or -1 if \a index is out of range. + + \sa QMenuData::setId(), QMenuData::indexOf() +*/ + + +/*! + \reimp + */ +bool QPopupMenu::customWhatsThis() const +{ + return TRUE; +} + + +/*! + \reimp + */ +bool QPopupMenu::focusNextPrevChild( bool next ) +{ + register QMenuItem *mi; + int dy = next? 1 : -1; + if ( dy && actItem < 0 ) { + setFirstItemActive(); + } else if ( dy ) { // highlight next/prev + register int i = actItem; + int c = mitems->count(); + int n = c; + while ( n-- ) { + i = i + dy; + if ( i == c ) + i = 0; + else if ( i < 0 ) + i = c - 1; + mi = mitems->at( i ); + if ( mi && !mi->isSeparator() && + ( ( style().styleHint(QStyle::SH_PopupMenu_AllowActiveAndDisabled, this) + && mi->isVisible() ) + || mi->isEnabledAndVisible() ) ) + break; + } + if ( i != actItem ) + setActiveItem( i ); + } + return TRUE; +} + + +/*! + \reimp + */ +void QPopupMenu::focusInEvent( QFocusEvent * ) +{ +} + +/*! + \reimp + */ +void QPopupMenu::focusOutEvent( QFocusEvent * ) +{ +} + + +class QTearOffMenuItem : public QCustomMenuItem +{ +public: + QTearOffMenuItem() + { + } + ~QTearOffMenuItem() + { + } + void paint( QPainter* p, const QColorGroup& cg, bool /* act*/, + bool /*enabled*/, int x, int y, int w, int h ) + { + p->setPen( QPen( cg.dark(), 1, DashLine ) ); + p->drawLine( x+2, y+h/2-1, x+w-4, y+h/2-1 ); + p->setPen( QPen( cg.light(), 1, DashLine ) ); + p->drawLine( x+2, y+h/2, x+w-4, y+h/2 ); + } + bool fullSpan() const + { + return TRUE; + } + + QSize sizeHint() + { + return QSize( 20, 6 ); + } +}; + + + +/*! + Inserts a tear-off handle into the menu. A tear-off handle is a + special menu item that creates a copy of the menu when the menu is + selected. This "torn-off" copy lives in a separate window. It + contains the same menu items as the original menu, with the + exception of the tear-off handle. + + The handle item is assigned the identifier \a id or an + automatically generated identifier if \a id is < 0. The generated + identifiers (negative integers) are guaranteed to be unique within + the entire application. + + The \a index specifies the position in the menu. The tear-off + handle is appended at the end of the list if \a index is negative. +*/ +int QPopupMenu::insertTearOffHandle( int id, int index ) +{ + int myid = insertItem( new QTearOffMenuItem, id, index ); + connectItem( myid, this, SLOT( toggleTearOff() ) ); + QMenuData::d->aInt = myid; + return myid; +} + + +/*!\internal + + implements tear-off menus + */ +void QPopupMenu::toggleTearOff() +{ + if ( active_popup_menu && active_popup_menu->tornOff ) { + active_popup_menu->close(); + } else if (QMenuData::d->aWidget ) { + delete (QWidget*) QMenuData::d->aWidget; // delete the old one + } else { + // create a tear off menu + QPopupMenu* p = new QPopupMenu( parentWidget(), "tear off menu" ); + connect( p, SIGNAL( activated(int) ), this, SIGNAL( activated(int) ) ); + connect( p, SIGNAL( highlighted(int) ), this, SIGNAL( highlighted(int) ) ); +#ifndef QT_NO_WIDGET_TOPEXTRA + p->setCaption( caption() ); +#endif + p->setCheckable( isCheckable() ); + p->reparent( parentWidget(), WType_TopLevel | WStyle_Tool | + WNoAutoErase | WDestructiveClose, + geometry().topLeft(), FALSE ); + p->mitems->setAutoDelete( FALSE ); + p->tornOff = TRUE; +#ifdef Q_WS_X11 + p->x11SetWindowType( X11WindowTypeMenu ); +#endif + for ( QMenuItemListIt it( *mitems ); it.current(); ++it ) { + if ( it.current()->id() != QMenuData::d->aInt && !it.current()->widget() ) + p->mitems->append( it.current() ); + } + p->show(); + QMenuData::d->aWidget = p; + } +} + +/*! + \reimp + */ +void QPopupMenu::activateItemAt( int index ) +{ + if ( index >= 0 && index < (int) mitems->count() ) { + QMenuItem *mi = mitems->at( index ); + if ( index != actItem ) // new item activated + setActiveItem( index ); + QPopupMenu *popup = mi->popup(); + if ( popup ) { + if ( popup->isVisible() ) { // sub menu already open + int pactItem = popup->actItem; + popup->actItem = -1; + popup->hidePopups(); + popup->updateRow( pactItem ); + } else { // open sub menu + hidePopups(); + actItem = index; + subMenuTimer(); + popup->setFirstItemActive(); + } + } else { + byeMenuBar(); // deactivate menu bar + +#ifndef QT_NO_WHATSTHIS + bool b = QWhatsThis::inWhatsThisMode(); +#else + const bool b = FALSE; +#endif + if ( !mi->isEnabledAndVisible() ) { +#ifndef QT_NO_WHATSTHIS + if ( b ) { + actItem = -1; + updateItem( mi->id() ); + byeMenuBar(); + actSig( mi->id(), b); + } +#endif + } else { + byeMenuBar(); // deactivate menu bar + if ( mi->isEnabledAndVisible() ) { + actItem = -1; + updateItem( mi->id() ); + active_popup_menu = this; + QGuardedPtr<QSignal> signal = mi->signal(); + actSig( mi->id(), b ); + if ( signal && !b ) + signal->activate(); + active_popup_menu = 0; + } + } + } + } else { + if ( tornOff ) { + close(); + } else { + QMenuData* p = parentMenu; + hide(); +#ifndef QT_NO_MENUBAR + if ( p && p->isMenuBar ) + ((QMenuBar*) p)->goodbye( TRUE ); +#endif + } + } + +} + +/*! \internal + This private function is to update the scroll states in styles that support scrolling. */ +void +QPopupMenu::updateScrollerState() +{ + uint old_scrollable = d->scroll.scrollable; + d->scroll.scrollable = QPopupMenuPrivate::Scroll::ScrollNone; + if(!style().styleHint(QStyle::SH_PopupMenu_Scrollable, this)) + return; + + QMenuItem *mi; + QMenuItemListIt it( *mitems ); + if(d->scroll.topScrollableIndex) { + for(int row = 0; (mi = it.current()) && row < d->scroll.topScrollableIndex; row++) + ++it; + if(!mi) + it.toFirst(); + } + int y = 0, sh = style().pixelMetric(QStyle::PM_PopupMenuScrollerHeight, this); + if(!it.atFirst()) { + // can't use |= because of a bug/feature in IBM xlC 5.0.2 + d->scroll.scrollable = d->scroll.scrollable | QPopupMenuPrivate::Scroll::ScrollUp; + y += sh; + } + while ( (mi=it.current()) ) { + ++it; + int myheight = contentsRect().height(); + QSize sz = style().sizeFromContents(QStyle::CT_PopupMenuItem, this, + QSize(0, itemHeight( mi )), + QStyleOption(mi,maxPMWidth)); + if(y + sz.height() >= myheight) { + d->scroll.scrollable = d->scroll.scrollable | QPopupMenuPrivate::Scroll::ScrollDown; + break; + } + y += sz.height(); + } + if((d->scroll.scrollable & QPopupMenuPrivate::Scroll::ScrollUp) && + !(old_scrollable & QPopupMenuPrivate::Scroll::ScrollUp)) + d->scroll.topScrollableIndex++; +} + +#endif // QT_NO_POPUPMENU + |