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Diffstat (limited to 'tqtinterface/qt4/src/widgets/tqwidgetstack.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/widgets/tqwidgetstack.cpp | 1183 |
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diff --git a/tqtinterface/qt4/src/widgets/tqwidgetstack.cpp b/tqtinterface/qt4/src/widgets/tqwidgetstack.cpp deleted file mode 100644 index 93be95f..0000000 --- a/tqtinterface/qt4/src/widgets/tqwidgetstack.cpp +++ /dev/null @@ -1,1183 +0,0 @@ -#include "tqtglobaldefines.h" - -#ifdef USE_QT4 - -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the Qt3Support module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial Usage -** Licensees holding valid Qt Commercial licenses may use this file in -** accordance with the Qt Commercial License Agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Nokia. -** -** 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. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "tqwidgetstack.h" -#include "tqlayout.h" -#include "private/tqlayoutengine_p.h" -#include "Qt/qapplication.h" -#include "Qt/qpainter.h" - -QT_BEGIN_NAMESPACE - -using namespace Qt; - -class TQWidgetStackPrivate { -public: - class Invisible: public TQWidget - { - public: - Invisible(TQWidgetStack * parent): TQWidget(parent, "qt_invisible_widgetstack") - { - setBackgroundMode(TQt::NoBackground); - } - const char * className() const - { - return "TQWidgetStackPrivate::Invisible"; - } - protected: - void paintEvent(QPaintEvent *) - { - QPainter(this).eraseRect(rect()); - } - }; - - int nextNegativeID; - int nextPositiveID; -}; - - - -/*! - \class TQWidgetStack - \brief The TQWidgetStack class provides a stack of widgets of which - only the top widget is user-visible. - - \compat - - The application programmer can move any widget to the top of the - stack at any time using raiseWidget(), and add or remove widgets - using addWidget() and removeWidget(). It is not sufficient to pass - the widget stack as parent to a widget which should be inserted into - the widgetstack. - - visibleWidget() is the \e get equivalent of raiseWidget(); it - returns a pointer to the widget that is currently at the top of - the stack. - - TQWidgetStack also provides the ability to manipulate widgets - through application-specified integer IDs. You can also translate - from widget pointers to IDs using id() and from IDs to widget - pointers using widget(). These numeric IDs are unique (per - TQWidgetStack, not globally), but TQWidgetStack does not attach any - additional meaning to them. - - The default widget stack is frameless, but you can use the usual - TQFrame functions (such as setFrameStyle()) to add a frame. - - TQWidgetStack provides a signal, aboutToShow(), which is emitted - just before a managed widget is shown. - - \sa TQTabDialog QTabWidget QTabBar TQFrame -*/ - - -/*! - Constructs an empty widget stack. - - The \a parent, \a name and \a f arguments are passed to the TQFrame - constructor. -*/ -TQWidgetStack::TQWidgetStack(TQWidget * parent, const char *name, WFlags f) - : TQFrame(parent, name, f) //## merge constructors in 4.0 -{ - init(); -} - -void TQWidgetStack::init() -{ - d = new TQWidgetStackPrivate(); - d->nextNegativeID = -2; - d->nextPositiveID = 0; - dict = new TQIntDict<TQWidget>; - focusWidgets = 0; - topWidget = 0; - invisible = 0; - invisible = new TQWidgetStackPrivate::Invisible(this); - invisible->hide(); -} - - -/*! - Destroys the object and frees any allocated resources. -*/ - -TQWidgetStack::~TQWidgetStack() -{ - delete focusWidgets; - delete d; - delete dict; -} - - -/*! - Adds widget \a w to this stack of widgets, with ID \a id. - - If you pass an id \>= 0 this ID is used. If you pass an \a id of - -1 (the default), the widgets will be numbered automatically. If - you pass -2 a unique negative integer will be generated. No widget - has an ID of -1. Returns the ID or -1 on failure (e.g. \a w is 0). - - If you pass an id that is already used, then a unique negative - integer will be generated to prevent two widgets having the same - id. - - If \a w already exists in the stack the widget will be removed first. - - If \a w is not a child of this TQWidgetStack moves it using - reparent(). -*/ - -int TQWidgetStack::addWidget(TQWidget * w, int id) -{ - if (!w || w == invisible || invisible == 0) - return -1; - - // prevent duplicates - removeWidget(w); - - if (id >= 0 && dict->find(id)) - id = -2; - if (id < -1) - id = d->nextNegativeID--; - else if (id == -1) - id = d->nextPositiveID++; - else - d->nextPositiveID = qMax(d->nextPositiveID, id + 1); - // use id >= 0 as-is - - dict->insert(id, w); - - // preserve existing focus - TQWidget * f = TQT_TQWIDGET(w->focusWidget()); - while(f && f != w) - f = TQT_TQWIDGET(f->parentWidget()); - if (f) { - if (!focusWidgets) - focusWidgets = new TQPtrDict<TQWidget>(17); - focusWidgets->replace(w, TQT_TQWIDGET(w->focusWidget())); - } - - w->hide(); - if (w->QWidget::parent() != this) - w->reparent(this, contentsRect().topLeft(), false); - w->setGeometry(contentsRect()); - updateGeometry(); - return id; -} - - -/*! - Removes widget \a w from this stack of widgets. Does not delete \a - w. If \a w is the currently visible widget, no other widget is - substituted. - - \sa visibleWidget() raiseWidget() -*/ - -void TQWidgetStack::removeWidget(TQWidget * w) -{ - int i; - if (!w || (i = id(w)) == -1) - return ; - - dict->take(i); - if (w == topWidget) - topWidget = 0; - if (dict->isEmpty()) - invisible->hide(); // let background shine through again - updateGeometry(); -} - - -/*! - Raises the widget with ID \a id to the top of the widget stack. - - \sa visibleWidget() -*/ - -void TQWidgetStack::raiseWidget(int id) -{ - if (id == -1) - return; - TQWidget * w = dict->find(id); - if (w) - raiseWidget(w); -} - -static bool isChildOf(TQWidget* child, TQWidget *parent) -{ - if (!child) - return false; - for (int i = 0; i < parent->childrenListObject().count(); ++i) { - TQObject *obj = parent->childrenListObject().at(i); - if (!obj->isWidgetType()) - continue; - TQWidget *widget = TQT_TQWIDGET((QWidget*)obj); - if (!widget->isWindow()) - continue; - if (widget == child || isChildOf(child, widget)) - return true; - } - return false; -} - -/*! - \overload - - Raises widget \a w to the top of the widget stack. -*/ - -void TQWidgetStack::raiseWidget(TQWidget *w) -{ - if (!w || w == invisible || w->QWidget::parent() != this || w == topWidget) - return; - - if (id(w) == -1) - addWidget(w); - if (!isVisible()) { - topWidget = w; - return; - } - - if (w->maximumSize().width() < invisible->width() - || w->maximumSize().height() < invisible->height()) - invisible->setBackgroundMode(backgroundMode()); - else if (invisible->backgroundMode() != TQt::NoBackground) - invisible->setBackgroundMode(TQt::NoBackground); - - if (invisible->isHidden()) { - invisible->setGeometry(contentsRect()); - invisible->lower(); - invisible->show(); - QApplication::sendPostedEvents(invisible, QEvent::ShowWindowRequest); - } - - // try to move focus onto the incoming widget if focus - // was somewhere on the outgoing widget. - if (topWidget) { - TQWidget * fw = TQT_TQWIDGET(window()->focusWidget()); - if (topWidget->isAncestorOf(fw)) { // focus was on old page - // look for the best focus widget we can find - TQWidget *p = TQT_TQWIDGET(w->focusWidget()); - if (!p) { - // second best == first child widget in the focus chain - TQWidget *i = fw; - while ((i = TQT_TQWIDGET(i->nextInFocusChain())) != fw) { - if (((i->focusPolicy() & Qt::TabFocus) == Qt::TabFocus) - && !i->focusProxy() && i->isVisibleTo(w) && i->isEnabled() - && w->isAncestorOf(i)) { - p = i; - break; - } - } - } - if (p) - p->setFocus(); - } else { - // the focus wasn't on the old page, so we have to ensure focus doesn't go to - // the widget in the page that last had focus when we show the page again. - TQWidget *oldfw = TQT_TQWIDGET(topWidget->focusWidget()); - if (oldfw) - oldfw->clearFocus(); - } - } - - if (isVisible()) { - emit aboutToShow(w); - int i = id(w); - if (i != -1) - emit aboutToShow(i); - } - - topWidget = w; - - for (int i = 0; i < childrenListObject().count(); ++i) { - TQObject * o = childrenListObject().at(i); - if (o->isWidgetType() && TQT_BASE_OBJECT(o) != TQT_BASE_OBJECT(w) && TQT_BASE_OBJECT(o) != TQT_BASE_OBJECT(invisible)) - TQT_TQWIDGET((QWidget*)o)->hide(); - } - - w->setGeometry(invisible->geometry()); - w->show(); -} - -/*! - \reimp -*/ - -void TQWidgetStack::frameChanged() -{ - TQFrame::frameChanged(); - setChildGeometries(); -} - - -/*! - \internal -*/ - -void TQWidgetStack::setFrameRect(const QRect & r) -{ - // ### this function used to be virtual in QFrame in Qt 3; it is no longer virtual in Qt 4 - TQFrame::setFrameRect(r); - setChildGeometries(); -} - - -/*! - Fixes up the children's geometries. -*/ - -void TQWidgetStack::setChildGeometries() -{ - invisible->setGeometry(contentsRect()); - if (topWidget) - topWidget->setGeometry(invisible->geometry()); -} - - -/*! - \reimp -*/ -void TQWidgetStack::setVisible(bool visible) -{ - if (visible) { - // Reimplemented in order to set the children's geometries - // appropriately and to pick the first widget as d->topWidget if no - // topwidget was defined - if (!isVisible() && !childrenListObject().isEmpty()) { - for (int i = 0; i < childrenListObject().count(); ++i) { - TQObject * o = childrenListObject().at(i); - if (o->isWidgetType()) { - if (!topWidget && TQT_BASE_OBJECT(o) != TQT_BASE_OBJECT(invisible)) - topWidget = TQT_TQWIDGET((QWidget*)o); - if (TQT_BASE_OBJECT(o) == TQT_BASE_OBJECT(topWidget)) - TQT_TQWIDGET((QWidget*)o)->show(); - else - TQT_TQWIDGET((QWidget*)o)->hide(); - } - } - setChildGeometries(); - } - } - TQFrame::setVisible(visible); -} - - -/*! - Returns the widget with ID \a id. Returns 0 if this widget stack - does not manage a widget with ID \a id. - - \sa id() addWidget() -*/ - -TQWidget * TQWidgetStack::widget(int id) const -{ - return id != -1 ? dict->find(id) : 0; -} - - -/*! - Returns the ID of the \a widget. Returns -1 if \a widget is 0 or - is not being managed by this widget stack. - - \sa widget() addWidget() -*/ - -int TQWidgetStack::id(TQWidget * widget) const -{ - if (!widget) - return -1; - - TQIntDictIterator<TQWidget> it(*dict); - while (it.current() && it.current() != widget) - ++it; - return it.current() == widget ? it.currentKey() : -1; -} - - -/*! - Returns the currently visible widget (the one at the top of the - stack), or 0 if nothing is currently being shown. - - \sa aboutToShow() id() raiseWidget() -*/ - -TQWidget * TQWidgetStack::visibleWidget() const -{ - return topWidget; -} - - -/*! - \fn void TQWidgetStack::aboutToShow(int id) - - This signal is emitted just before a managed widget is shown if - that managed widget has an ID != -1. The \a id parameter is the numeric - ID of the widget. - - If you call visibleWidget() in a slot connected to aboutToShow(), - the widget it returns is the one that is currently visible, not - the one that is about to be shown. -*/ - - -/*! - \fn void TQWidgetStack::aboutToShow(QWidget *widget) - - \overload - - This signal is emitted just before a managed widget is shown. The - argument is a pointer to the \a widget. - - If you call visibleWidget() in a slot connected to aboutToShow(), - the widget returned is the one that is currently visible, not the - one that is about to be shown. -*/ - - -/*! - \reimp -*/ - -void TQWidgetStack::resizeEvent(TQResizeEvent * e) -{ - TQFrame::resizeEvent(e); - setChildGeometries(); -} - -/*! - \reimp -*/ - -TQSize TQWidgetStack::tqsizeHint() const -{ - constPolish(); - - TQSize size(0, 0); - - TQIntDictIterator<TQWidget> it(*dict); - TQWidget *w; - - while ((w = it.current()) != 0) { - ++it; - TQSize sh = w->tqsizeHint(); - if (w->tqsizePolicy().horData() == QSizePolicy::Ignored) - sh.rwidth() = 0; - if (w->tqsizePolicy().verData() == QSizePolicy::Ignored) - sh.rheight() = 0; -#ifndef QT_NO_LAYOUT - size = size.expandedTo(sh).expandedTo(tqSmartMinSize(w)); -#endif - } - if (size.isNull()) - size = TQSize(128, 64); - size += TQSize(2*frameWidth(), 2*frameWidth()); - return size; -} - - -/*! - \reimp -*/ -TQSize TQWidgetStack::tqminimumSizeHint() const -{ - constPolish(); - - TQSize size(0, 0); - - TQIntDictIterator<TQWidget> it(*dict); - TQWidget *w; - - while ((w = it.current()) != 0) { - ++it; - TQSize sh = w->tqminimumSizeHint(); - if (w->tqsizePolicy().horData() == QSizePolicy::Ignored) - sh.rwidth() = 0; - if (w->tqsizePolicy().verData() == QSizePolicy::Ignored) - sh.rheight() = 0; -#ifndef QT_NO_LAYOUT - size = size.expandedTo(sh).expandedTo(w->minimumSize()); -#endif - } - if (size.isNull()) - size = TQSize(64, 32); - size += TQSize(2*frameWidth(), 2*frameWidth()); - return size; -} - -/*! - \reimp -*/ -void TQWidgetStack::childEvent(TQChildEvent *e) -{ - if (e->child()->isWidgetType() && e->removed()) - removeWidget((TQWidget *) e->child()); -} - - -/*! - \reimp -*/ -bool TQWidgetStack::event(TQEvent* e) -{ - if (e->type() == TQEvent::LayoutRequest || e->type() == TQEvent::LayoutHint ) - updateGeometry(); // propgate layout hints to parent - return TQFrame::event(e); -} - -QT_END_NAMESPACE - -#else // USE_QT4 - -/**************************************************************************** -** -** Implementation of TQWidgetStack class -** -** Created : 980128 -** -** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. -** -** This file is part of the widgets module of the TQt 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 TQt 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 sales@trolltech.com. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** 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 "tqwidgetstack.h" -#include "tqlayout.h" -#include "../kernel/tqlayoutengine_p.h" -#ifndef TQT_NO_WIDGETSTACK - -#include "tqobjectlist.h" -#include "tqfocusdata.h" -#include "tqbutton.h" -#include "tqbuttongroup.h" - -#include "tqapplication.h" - -class TQWidgetStackPrivate { -public: - class Invisible: public TQWidget - { - public: - Invisible( TQWidgetStack * parent ): TQWidget( parent, "qt_invisible_widgetstack" ) - { - setBackgroundMode( TQt::NoBackground ); - } - const char * className() const - { - return "TQWidgetStackPrivate::Invisible"; - } - }; -}; - - -#if (TQT_VERSION-0 >= 0x040000) -#if defined(TQ_CC_GNU) -#warning "Remove TQWidgetStackEventFilter" -#endif -#endif -class TQWidgetStackEventFilter : public TQObject -{ - /* For binary compatibility, since we cannot implement virtual - functions and rely on them being called. This is what we should - have - - bool TQWidgetStack::event( TQEvent* e ) - { - if ( e->type() == TQEvent::LayoutHint ) - updateGeometry(); // propgate tqlayout hints to parent - return TQFrame::event( e ); - } - */ -public: - - TQWidgetStackEventFilter( TQObject *parent = 0, const char * name = 0 ) - : TQObject( parent, name ) {} - bool eventFilter( TQObject *o, TQEvent * e ) { - if ( e->type() == TQEvent::LayoutHint && o->isWidgetType() ) - ((TQWidget*)o)->updateGeometry(); - return FALSE; - } -}; - - -/*! - \class TQWidgetStack - \brief The TQWidgetStack class provides a stack of widgets of which - only the top widget is user-visible. - - \ingroup organizers - \mainclass - - The application programmer can move any widget to the top of the - stack at any time using raiseWidget(), and add or remove widgets - using addWidget() and removeWidget(). It is not sufficient to pass - the widget stack as parent to a widget which should be inserted into - the widgetstack. - - visibleWidget() is the \e get equivalent of raiseWidget(); it - returns a pointer to the widget that is currently at the top of - the stack. - - TQWidgetStack also provides the ability to manipulate widgets - through application-specified integer IDs. You can also translate - from widget pointers to IDs using id() and from IDs to widget - pointers using widget(). These numeric IDs are unique (per - TQWidgetStack, not globally), but TQWidgetStack does not attach any - additional meaning to them. - - The default widget stack is frameless, but you can use the usual - TQFrame functions (such as setFrameStyle()) to add a frame. - - TQWidgetStack provides a signal, aboutToShow(), which is emitted - just before a managed widget is shown. - - \sa TQTabDialog TQTabBar TQFrame -*/ - - -/*! - Constructs an empty widget stack. - - The \a parent and \a name arguments are passed to the TQFrame - constructor. -*/ - -TQWidgetStack::TQWidgetStack( TQWidget * parent, const char *name ) - : TQFrame( parent, name ) -{ - init(); -} - -/*! - Constructs an empty widget stack. - - The \a parent, \a name and \a f arguments are passed to the TQFrame - constructor. -*/ -TQWidgetStack::TQWidgetStack( TQWidget * parent, const char *name, WFlags f ) - : TQFrame( parent, name, f ) //## merge constructors in 4.0 -{ - init(); -} - -void TQWidgetStack::init() -{ - d = 0; - TQWidgetStackEventFilter *ef = new TQWidgetStackEventFilter( TQT_TQOBJECT(this) ); - installEventFilter( ef ); - dict = new TQIntDict<TQWidget>; - tqfocusWidgets = 0; - topWidget = 0; - invisible = new TQWidgetStackPrivate::Invisible( this ); - invisible->hide(); -} - - -/*! - Destroys the object and frees any allocated resources. -*/ - -TQWidgetStack::~TQWidgetStack() -{ - delete tqfocusWidgets; - delete d; - delete dict; -} - - -/*! - Adds widget \a w to this stack of widgets, with ID \a id. - - If you pass an id \>= 0 this ID is used. If you pass an \a id of - -1 (the default), the widgets will be numbered automatically. If - you pass -2 a unique negative integer will be generated. No widget - has an ID of -1. Returns the ID or -1 on failure (e.g. \a w is 0). - - If you pass an id that is already used, then a unique negative - integer will be generated to prevent two widgets having the same - id. - - If \a w already exists in the stack the widget will be removed first. - - If \a w is not a child of this TQWidgetStack moves it using - reparent(). -*/ - -int TQWidgetStack::addWidget( TQWidget * w, int id ) -{ - static int nseq_no = -2; - static int pseq_no = 0; - - if ( !w || w == invisible ) - return -1; - - // prevent duplicates - removeWidget( w ); - - if ( id >= 0 && dict->find( id ) ) - id = -2; - if ( id < -1 ) - id = nseq_no--; - else if ( id == -1 ) - id = pseq_no++; - else - pseq_no = TQMAX(pseq_no, id + 1); - // use id >= 0 as-is - - dict->insert( id, w ); - - // preserve existing focus - TQWidget * f = w->tqfocusWidget(); - while( f && f != w ) - f = f->parentWidget(); - if ( f ) { - if ( !tqfocusWidgets ) - tqfocusWidgets = new TQPtrDict<TQWidget>( 17 ); - tqfocusWidgets->replace( w, w->tqfocusWidget() ); - } - - w->hide(); - if ( w->parent() != TQT_TQOBJECT(this) ) - w->reparent( this, contentsRect().topLeft(), FALSE ); - w->setGeometry( contentsRect() ); - updateGeometry(); - return id; -} - - -/*! - Removes widget \a w from this stack of widgets. Does not delete \a - w. If \a w is the currently visible widget, no other widget is - substituted. - - \sa visibleWidget() raiseWidget() -*/ - -void TQWidgetStack::removeWidget( TQWidget * w ) -{ - if ( !w ) - return; - int i = id( w ); - if ( i != -1 ) - dict->take( i ); - - if ( w == topWidget ) - topWidget = 0; - if ( dict->isEmpty() ) - invisible->hide(); // let background shine through again - updateGeometry(); -} - - -/*! - Raises the widget with ID \a id to the top of the widget stack. - - \sa visibleWidget() -*/ - -void TQWidgetStack::raiseWidget( int id ) -{ - if ( id == -1 ) - return; - TQWidget * w = dict->find( id ); - if ( w ) - raiseWidget( w ); -} - -static bool isChildOf( TQWidget* child, TQWidget *parent ) -{ - if ( !child || !parent->childrenListObject().isEmpty() ) - return FALSE; - TQObjectListIt it(parent->childrenListObject()); - TQObject *obj; - while ( (obj = it.current()) ) { - ++it; - if ( !obj->isWidgetType() || ((TQWidget *)obj)->isTopLevel() ) - continue; - TQWidget *widget = (TQWidget *)obj; - if ( widget == child || isChildOf( child, widget ) ) - return TRUE; - } - return FALSE; -} - -/*! - \overload - - Raises widget \a w to the top of the widget stack. -*/ - -void TQWidgetStack::raiseWidget( TQWidget *w ) -{ - if ( !w || w == invisible || w->parent() != TQT_TQOBJECT(this) || w == topWidget ) - return; - - if ( id(w) == -1 ) - addWidget( w ); - if ( !isVisible() ) { - topWidget = w; - return; - } - - if (w->tqmaximumSize().width() < invisible->width() - || w->tqmaximumSize().height() < invisible->height()) - invisible->setBackgroundMode(backgroundMode()); - else if (invisible->backgroundMode() != TQt::NoBackground) - invisible->setBackgroundMode(TQt::NoBackground); - - if ( invisible->isHidden() ) { - invisible->setGeometry( contentsRect() ); - invisible->lower(); - invisible->show(); - TQApplication::sendPostedEvents( invisible, TQEvent::ShowWindowRequest ); - } - - // try to move focus onto the incoming widget if focus - // was somewhere on the outgoing widget. - if ( topWidget ) { - TQWidget * fw = tqfocusWidget(); - TQWidget* p = fw; - while ( p && p != topWidget ) - p = p->parentWidget(); - if ( p == topWidget ) { // focus was on old page - if ( !tqfocusWidgets ) - tqfocusWidgets = new TQPtrDict<TQWidget>( 17 ); - tqfocusWidgets->replace( topWidget, fw ); - fw->clearFocus(); - // look for the best focus widget we can find - // best == what we had (which may be deleted) - fw = tqfocusWidgets->take( w ); - if ( isChildOf( fw, w ) ) { - fw->setFocus(); - } else { - // second best == first child widget in the focus chain - TQFocusData *f = focusData(); - TQWidget* home = f->home(); - TQWidget *i = home; - do { - if ( ( ( i->focusPolicy() & Qt::TabFocus ) == Qt::TabFocus ) - && !i->focusProxy() && i->isVisibleTo(w) && i->isEnabled() ) { - p = i; - while ( p && p != w ) - p = p->parentWidget(); - if ( p == w ) { - i->setFocus(); - break; - } - } - i = f->next(); - } while( i != home ); - } - } - } - - if ( isVisible() ) { - emit aboutToShow( w ); - int i = id( w ); - if ( i != -1 ) - emit aboutToShow( i ); - } - - topWidget = w; - - TQObjectListIt it( childrenListObject() ); - TQObject * o; - - while( (o=it.current()) != 0 ) { - ++it; - if ( o->isWidgetType() && o != TQT_TQOBJECT(w) && o != TQT_TQOBJECT(invisible) ) - ((TQWidget *)o)->hide(); - } - - w->setGeometry( invisible->tqgeometry() ); - w->show(); -} - -/*! - \reimp -*/ - -void TQWidgetStack::frameChanged() -{ - TQFrame::frameChanged(); - setChildGeometries(); -} - - -/*! - \reimp -*/ - -void TQWidgetStack::setFrameRect( const TQRect & r ) -{ - TQFrame::setFrameRect( r ); - setChildGeometries(); -} - - -/*! - Fixes up the tqchildren's geometries. -*/ - -void TQWidgetStack::setChildGeometries() -{ - invisible->setGeometry( contentsRect() ); - if ( topWidget ) - topWidget->setGeometry( invisible->tqgeometry() ); -} - - -/*! - \reimp -*/ -void TQWidgetStack::show() -{ - // Reimplemented in order to set the tqchildren's geometries - // appropriately and to pick the first widget as topWidget if no - // topwidget was defined - if ( !isVisible() && !childrenListObject().isEmpty() ) { - TQObjectListIt it( childrenListObject() ); - TQObject * o; - - while( (o=it.current()) != 0 ) { - ++it; - if ( o->isWidgetType() ) { - if ( !topWidget && o != TQT_TQOBJECT(invisible) ) - topWidget = (TQWidget*)o; - if ( TQT_BASE_OBJECT(o) == TQT_BASE_OBJECT(topWidget) ) - ((TQWidget *)o)->show(); - else - ((TQWidget *)o)->hide(); - } - } - setChildGeometries(); - } - TQFrame::show(); -} - - -/*! - Returns the widget with ID \a id. Returns 0 if this widget stack - does not manage a widget with ID \a id. - - \sa id() addWidget() -*/ - -TQWidget * TQWidgetStack::widget( int id ) const -{ - return id != -1 ? dict->find( id ) : 0; -} - - -/*! - Returns the ID of the \a widget. Returns -1 if \a widget is 0 or - is not being managed by this widget stack. - - \sa widget() addWidget() -*/ - -int TQWidgetStack::id( TQWidget * widget ) const -{ - if ( !widget ) - return -1; - - TQIntDictIterator<TQWidget> it( *dict ); - while ( it.current() && it.current() != widget ) - ++it; - return it.current() == widget ? it.currentKey() : -1; -} - - -/*! - Returns the currently visible widget (the one at the top of the - stack), or 0 if nothing is currently being shown. - - \sa aboutToShow() id() raiseWidget() -*/ - -TQWidget * TQWidgetStack::visibleWidget() const -{ - return topWidget; -} - - -/*! - \fn void TQWidgetStack::aboutToShow( int ) - - This signal is emitted just before a managed widget is shown if - that managed widget has an ID != -1. The argument is the numeric - ID of the widget. - - If you call visibleWidget() in a slot connected to aboutToShow(), - the widget it returns is the one that is currently visible, not - the one that is about to be shown. -*/ - - -/*! - \fn void TQWidgetStack::aboutToShow( TQWidget * ) - - \overload - - This signal is emitted just before a managed widget is shown. The - argument is a pointer to the widget. - - If you call visibleWidget() in a slot connected to aboutToShow(), - the widget returned is the one that is currently visible, not the - one that is about to be shown. -*/ - - -/*! - \reimp -*/ - -void TQWidgetStack::resizeEvent( TQResizeEvent * e ) -{ - TQFrame::resizeEvent( e ); - setChildGeometries(); -} - - -/*! - \reimp -*/ - -TQSize TQWidgetStack::tqsizeHint() const -{ - constPolish(); - - TQSize size( 0, 0 ); - - TQIntDictIterator<TQWidget> it( *dict ); - TQWidget *w; - - while ( (w = it.current()) != 0 ) { - ++it; - TQSize sh = w->tqsizeHint(); - if ( w->tqsizePolicy().horData() == TQSizePolicy::Ignored ) - sh.rwidth() = 0; - if ( w->tqsizePolicy().verData() == TQSizePolicy::Ignored ) - sh.rheight() = 0; -#ifndef TQT_NO_LAYOUT - size = size.expandedTo( sh ).expandedTo( tqSmartMinSize(w) ); -#endif - } - if ( size.isNull() ) - size = TQSize( 128, 64 ); - size += TQSize( 2*frameWidth(), 2*frameWidth() ); - return size; -} - - -/*! - \reimp -*/ -TQSize TQWidgetStack::tqminimumSizeHint() const -{ - constPolish(); - - TQSize size( 0, 0 ); - - TQIntDictIterator<TQWidget> it( *dict ); - TQWidget *w; - - while ( (w = it.current()) != 0 ) { - ++it; - TQSize sh = w->tqminimumSizeHint(); - if ( w->tqsizePolicy().horData() == TQSizePolicy::Ignored ) - sh.rwidth() = 0; - if ( w->tqsizePolicy().verData() == TQSizePolicy::Ignored ) - sh.rheight() = 0; -#ifndef TQT_NO_LAYOUT - size = size.expandedTo( sh ).expandedTo( w->tqminimumSize() ); -#endif - } - if ( size.isNull() ) - size = TQSize( 64, 32 ); - size += TQSize( 2*frameWidth(), 2*frameWidth() ); - return size; -} - -/*! - \reimp -*/ -void TQWidgetStack::childEvent( TQChildEvent * e) -{ - if ( e->child()->isWidgetType() && e->removed() ) - removeWidget( (TQWidget*) e->child() ); -} -#endif - -#endif // USE_QT4 |