Diffstat (limited to 'microkde/kdeui/kjanuswidget.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | microkde/kdeui/kjanuswidget.cpp | 1176 |
1 files changed, 1176 insertions, 0 deletions
diff --git a/microkde/kdeui/kjanuswidget.cpp b/microkde/kdeui/kjanuswidget.cpp new file mode 100644 index 0000000..7d25854 --- a/dev/null +++ b/microkde/kdeui/kjanuswidget.cpp @@ -0,0 +1,1176 @@ +/* This file is part of the KDE Libraries + * Copyright (C) 1999-2000 Espen Sand (espensa@online.no) + * Copyright (C) 2003 Ravikiran Rajagopal (ravi@kde.org) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <qpixmap.h> +#include <qbitmap.h> +#include <qlayout.h> +#include <qlabel.h> +#include <qwidgetstack.h> +#include <qtabwidget.h> +#include <qlistview.h> +#include <qhbox.h> +#include <qvbox.h> +#include <qgrid.h> +#include <qpainter.h> +#include <qobjectlist.h> + +/*US +#include <qbitmap.h> +#include <qgrid.h> +#include <qhbox.h> +#include <qheader.h> +#include <qlabel.h> +#include <qlayout.h> +#include <qobjectlist.h> +#include <qpixmap.h> +#include <qsplitter.h> +#include <qtabwidget.h> +#include <qvbox.h> +#include <qwidgetstack.h> +#include <qpainter.h> +#include <qstyle.h> + +#include <kapplication.h> +#include <klocale.h> +#include <kglobal.h> +#include <kglobalsettings.h> +#include <kseparator.h> +#include <kdebug.h> +#include "kjanuswidget.h" +#include <klistview.h> + +*/ + +#include <kseparator.h> +#include <kdialog.h> // Access to some static members +#include <kdebug.h> +#include <klistview.h> + +#include "kjanuswidget.h" + +class KJanusWidget::IconListItem : public QListBoxItem +{ + public: + IconListItem( QListBox *listbox, const QPixmap &pixmap, + const QString &text ); + virtual int height( const QListBox *lb ) const; + virtual int width( const QListBox *lb ) const; + int expandMinimumWidth( int width ); + + protected: + const QPixmap &defaultPixmap(); + void paint( QPainter *painter ); + + private: + QPixmap mPixmap; + int mMinimumWidth; +}; + +class KJanusWidget::KJanusWidgetPrivate +{ +public: + KJanusWidgetPrivate() : mNextPageIndex(0) { } + + int mNextPageIndex; // The next page index. + + // Dictionary for multipage modes. + QMap<int,QWidget*> mIntToPage; + // Reverse dictionary. Used because showPage() may be performance critical. + QMap<QWidget*,int> mPageToInt; + // Dictionary of title string associated with page. + QMap<int, QString> mIntToTitle; +}; + +template class QPtrList<QListViewItem>; + + +KJanusWidget::KJanusWidget( QWidget *parent, const char *name, int face ) + : QWidget( parent, name ), + mValid(false), mPageList(0), + mTitleList(0), mFace(face), mTitleLabel(0), mActivePageWidget(0), + mShowIconsInTreeList(false), d(0) +{ + QVBoxLayout *topLayout = new QVBoxLayout( this ); + if( mFace == TreeList || mFace == IconList ) + { + d = new KJanusWidgetPrivate; + + QFrame *page = 0; + if( mFace == TreeList ) + { + //US + qDebug("KJanusWidget::KJanusWidget TreeList not implemented yet"); +/*US + QSplitter *splitter = new QSplitter( this ); + topLayout->addWidget( splitter, 10 ); + mTreeListResizeMode = QSplitter::KeepSize; + + mTreeList = new KListView( splitter ); + mTreeList->addColumn( QString::null ); + mTreeList->header()->hide(); + mTreeList->setRootIsDecorated(true); + mTreeList->setSorting( -1 ); + connect( mTreeList, SIGNAL(selectionChanged()), SLOT(slotShowPage()) ); + connect( mTreeList, SIGNAL(clicked(QListViewItem *)), SLOT(slotItemClicked(QListViewItem *))); + + // + // Page area. Title at top with a separator below and a pagestack using + // all available space at bottom. + // + QFrame *p = new QFrame( splitter ); + + QHBoxLayout *hbox = new QHBoxLayout( p, 0, 0 ); + hbox->addSpacing( KDialog::marginHint() ); + + page = new QFrame( p ); + hbox->addWidget( page, 10 ); +*/ + } + else + { + QHBoxLayout *hbox = new QHBoxLayout( topLayout ); + mIconList = new IconListBox( this ); + + QFont listFont( mIconList->font() ); + listFont.setBold( true ); + mIconList->setFont( listFont ); + + mIconList->verticalScrollBar()->installEventFilter( this ); + hbox->addWidget( mIconList ); + connect( mIconList, SIGNAL(selectionChanged()), SLOT(slotShowPage())); + hbox->addSpacing( KDialog::marginHint() ); + page = new QFrame( this ); + hbox->addWidget( page, 10 ); + } + + // + // Rest of page area. Title at top with a separator below and a + // pagestack using all available space at bottom. + // + + QVBoxLayout *vbox = new QVBoxLayout( page, 0, KDialog::spacingHint() ); + + mTitleLabel = new QLabel( QString::fromLatin1("Empty page"), page, "KJanusWidgetTitleLabel" ); + vbox->addWidget( mTitleLabel ); + + QFont titleFont( mTitleLabel->font() ); + titleFont.setBold( true ); + mTitleLabel->setFont( titleFont ); + + mTitleSep = new KSeparator( page ); + mTitleSep->setFrameStyle( QFrame::HLine|QFrame::Plain ); + vbox->addWidget( mTitleSep ); + + mPageStack = new QWidgetStack( page ); + connect(mPageStack, SIGNAL(aboutToShow(QWidget *)), + SIGNAL(aboutToShowPage(QWidget *))); + vbox->addWidget( mPageStack, 10 ); + } + else if( mFace == Tabbed ) + { + d = new KJanusWidgetPrivate; + + mTabControl = new QTabWidget( this ); + mTabControl->setMargin (KDialog::marginHint()); + topLayout->addWidget( mTabControl, 10 ); + } + else if( mFace == Swallow ) + { + mSwallowPage = new QWidget( this ); + topLayout->addWidget( mSwallowPage, 10 ); + } + else + { + mFace = Plain; + mPlainPage = new QFrame( this ); + topLayout->addWidget( mPlainPage, 10 ); + } +/*US + if ( kapp ) + connect(kapp,SIGNAL(kdisplayFontChanged()),SLOT(slotFontChanged())); +*/ + mValid = true; + setSwallowedWidget(0); // Set default size if 'mFace' is Swallow. +} + + +KJanusWidget::~KJanusWidget() +{ + +/*US the destroyed signal caused a segmentation fault while closing the dialog and destructing + all pages. Why not just remove all pages in the destructor?? +*/ +// LR we have all subwidgets with parent-child relation +// LR we do not need to delete here anything by the private class +/* + if( mFace == Tabbed ) + { + QMap<QWidget*,int>::Iterator it; + for (it = d->mPageToInt.begin(); it != d->mPageToInt.end(); ++it) { + QObject*page = (QObject*)it.key(); + pageGone(page); + } + } + else + qDebug("KJanusWidget::~KJanusWidget so far "); +*/ +//US end + + delete d; + + +} + + +bool KJanusWidget::isValid() const +{ + return( mValid ); +} + + +QFrame *KJanusWidget::plainPage() +{ + return( mPlainPage ); +} + + +int KJanusWidget::face() const +{ + return( mFace ); +} + +QWidget *KJanusWidget::FindParent() +{ + if( mFace == Tabbed ) { + return mTabControl; + } + else { + return this; + } +} + +QFrame *KJanusWidget::addPage( const QStringList &items, const QString &header, + const QPixmap &pixmap ) +{ + if( mValid == false ) + { + kdDebug() << "addPage: Invalid object" << endl; + return( 0 ); + } + + QFrame *page = new QFrame( FindParent(), "page" ); + addPageWidget( page, items, header, pixmap ); + + return page; +} + +void KJanusWidget::pageGone( QObject *obj ) +{ +// QObject* obj = (QObject*)sender(); + removePage( static_cast<QWidget*>( obj ) ); +} + +void KJanusWidget::slotReopen( QListViewItem * item ) +{ + if( item ) + item->setOpen( true ); +} + +QFrame *KJanusWidget::addPage( const QString &itemName, const QString &header, + const QPixmap &pixmap ) +{ + QStringList items; + items << itemName; + return addPage(items, header, pixmap); +} + + + +QVBox *KJanusWidget::addVBoxPage( const QStringList &items, + const QString &header, + const QPixmap &pixmap ) +{ + if( mValid == false ) + { + qDebug("addPage: Invalid object "); + + return( 0 ); + } + + QVBox *page = new QVBox(FindParent() , "vbox_page" ); + page->setSpacing( KDialog::spacingHintSmall() ); + addPageWidget( page, items, header, pixmap ); + + return page; +} + +QVBox *KJanusWidget::addVBoxPage( const QString &itemName, + const QString &header, + const QPixmap &pixmap ) +{ + QStringList items; + items << itemName; + return addVBoxPage(items, header, pixmap); +} + +QHBox *KJanusWidget::addHBoxPage( const QStringList &items, + const QString &header, + const QPixmap &pixmap ) +{ + if( mValid == false ) { + kdDebug() << "addPage: Invalid object" << endl; + return( 0 ); + } + + QHBox *page = new QHBox(FindParent(), "hbox_page"); + page->setSpacing( KDialog::spacingHint() ); + addPageWidget( page, items, header, pixmap ); + + return page; +} + +QHBox *KJanusWidget::addHBoxPage( const QString &itemName, + const QString &header, + const QPixmap &pixmap ) +{ + QStringList items; + items << itemName; + return addHBoxPage(items, header, pixmap); +} + +QGrid *KJanusWidget::addGridPage( int n, QGrid::Direction dir, + const QStringList &items, + const QString &header, + const QPixmap &pixmap ) +{ + if( mValid == false ) + { + kdDebug() << "addPage: Invalid object" << endl; + return( 0 ); + } + + QGrid *page = new QGrid( n, dir, FindParent(), "page" ); + page->setSpacing( KDialog::spacingHint() ); + addPageWidget( page, items, header, pixmap ); + + return page; +} + + +QGrid *KJanusWidget::addGridPage( int n, QGrid::Direction dir, + const QString &itemName, + const QString &header, + const QPixmap &pixmap ) +{ + QStringList items; + items << itemName; + return addGridPage(n, dir, items, header, pixmap); +} + +void KJanusWidget::InsertTreeListItem(const QStringList &items, const QPixmap &pixmap, QFrame *page) +{ + bool isTop = true; + QListViewItem *curTop = 0, *child, *last, *newChild; + unsigned int index = 1; + QStringList curPath; + + for ( QStringList::ConstIterator it = items.begin(); it != items.end(); ++it, index++ ) { + QString name = (*it); + bool isPath = ( index != items.count() ); + + // Find the first child. + if (isTop) { + child = mTreeList->firstChild(); + } + else { + child = curTop->firstChild(); + } + + // Now search for a child with the current Name, and if it we doesn't + // find it, then remember the location of the last child. + for (last = 0; child && child->text(0) != name ; last = child, child = child->nextSibling()); + + if (last == 0 && child == 0) { + // This node didn't have any children at all, lets just insert the + // new child. + if (isTop) + newChild = new QListViewItem(mTreeList, name); + else + newChild = new QListViewItem(curTop, name); + + } + else if (child != 0) { + // we found the given name in this child. + if (!isPath) { + kdDebug() << "The element inserted was already in the TreeList box!" << endl; + return; + } + else { + // Ok we found the folder + newChild = child; + } + } + else { + // the node had some children, but we didn't find the given name + if (isTop) + newChild = new QListViewItem(mTreeList, last, name); + else + newChild = new QListViewItem(curTop, last, name); + } + + // Now make the element expandable if it is a path component, and make + // ready for next loop + if (isPath) { + newChild->setExpandable(true); + curTop = newChild; + isTop = false; + curPath << name; + + QString key = curPath.join("_/_"); + if (mFolderIconMap.contains(key)) { + QPixmap p = mFolderIconMap[key]; + newChild->setPixmap(0,p); + } + } + else { + if (mShowIconsInTreeList) { + newChild->setPixmap(0, pixmap); + } + mTreeListToPageStack.insert(newChild, page); + } + } +} + +void KJanusWidget::addPageWidget( QFrame *page, const QStringList &items, + const QString &header,const QPixmap &pixmap ) +{ +/*US the following signal causes a segmentation fault while closing the dialog. + Why not just remove all pages in the destructor?? +*/ +//US connect(page, SIGNAL(destroyed(QObject*)), this, SLOT(pageGone(QObject*))); +// we have the SIGNAL(destroyed(QObject*) only in Qt3 +#ifdef DESKTOP_VERSION + // connect(page, SIGNAL(destroyed(QObject*)), this, SLOT(pageGone(QObject*))); +#endif + if( mFace == Tabbed ) + { + mTabControl->addTab (page, items.last()); + d->mIntToPage[d->mNextPageIndex] = static_cast<QWidget*>(page); + d->mPageToInt[static_cast<QWidget*>(page)] = d->mNextPageIndex; + d->mNextPageIndex++; + } + else if( mFace == TreeList || mFace == IconList ) + { + d->mIntToPage[d->mNextPageIndex] = static_cast<QWidget*>(page); + d->mPageToInt[static_cast<QWidget*>(page)] = d->mNextPageIndex; + mPageStack->addWidget( page, 0 ); + + if (items.count() == 0) { + kdDebug() << "Invalid QStringList, with zero items" << endl; + return; + } + + if( mFace == TreeList ) + { + InsertTreeListItem(items, pixmap, page); + } + else // mFace == IconList + { + QString itemName = items.last(); + IconListItem *item = new IconListItem( mIconList, pixmap, itemName ); + mIconListToPageStack.insert(item, page); + mIconList->invalidateHeight(); + mIconList->invalidateWidth(); + + if (mIconList->isVisible()) + mIconList->updateWidth(); + } + + // + // Make sure the title label is sufficiently wide + // + QString lastName = items.last(); + const QString &title = (!header.isNull() ? header : lastName); + QRect r = mTitleLabel->fontMetrics().boundingRect( title ); + if( mTitleLabel->minimumWidth() < r.width() ) + { + mTitleLabel->setMinimumWidth( r.width() ); + } + d->mIntToTitle[d->mNextPageIndex] = title; + if( d->mIntToTitle.count() == 1 ) + { + showPage(0); + } + d->mNextPageIndex++; + } + else + { + kdDebug() << "KJanusWidget::addPageWidget: can only add a page in Tabbed, TreeList or IconList modes" << endl; + } + +} + +void KJanusWidget::setFolderIcon(const QStringList &path, const QPixmap &pixmap) +{ + QString key = path.join("_/_"); + mFolderIconMap.insert(key,pixmap); +} + + + +bool KJanusWidget::setSwallowedWidget( QWidget *widget ) +{ + if( mFace != Swallow || mValid == false ) + { + return( false ); + } + + // + // Remove current layout and make a new. + // + if( mSwallowPage->layout() != 0 ) + { + delete mSwallowPage->layout(); + } + QGridLayout *gbox = new QGridLayout( mSwallowPage, 1, 1, 0 ); + + // + // Hide old children + // + QObjectList *l = (QObjectList*)mSwallowPage->children(); // silence please + for( uint i=0; i < l->count(); i++ ) + { + QObject *o = l->at(i); + if( o->isWidgetType() ) + { + ((QWidget*)o)->hide(); + } + } + + // + // Add new child or make default size + // + if( widget == 0 ) + { + gbox->addRowSpacing(0,100); + gbox->addColSpacing(0,100); + mSwallowPage->setMinimumSize(100,100); + } + else + { + if( widget->parent() != mSwallowPage ) + { + widget->reparent( mSwallowPage, 0, QPoint(0,0) ); + } + gbox->addWidget(widget, 0, 0 ); + gbox->activate(); + mSwallowPage->setMinimumSize( widget->minimumSize() ); + } + + return( true ); +} + +bool KJanusWidget::slotShowPage() +{ + if( mValid == false ) + { + return( false ); + } + + if( mFace == TreeList ) + { + QListViewItem *node = mTreeList->selectedItem(); + if( node == 0 ) { return( false ); } + + QWidget *stackItem = mTreeListToPageStack[node]; + // Make sure to call through the virtual function showPage(int) + return showPage(d->mPageToInt[stackItem]); + } + else if( mFace == IconList ) + { + QListBoxItem *node = mIconList->item( mIconList->currentItem() ); + if( node == 0 ) { return( false ); } + QWidget *stackItem = mIconListToPageStack[node]; + // Make sure to call through the virtual function showPage(int) + return showPage(d->mPageToInt[stackItem]); + } + + return( false ); +} + + +bool KJanusWidget::showPage( int index ) +{ + if( d == 0 || mValid == false ) + { + return( false ); + } + else + { + return showPage(d->mIntToPage[index]); + } +} + + +bool KJanusWidget::showPage( QWidget *w ) +{ + if( w == 0 || mValid == false ) + { + return( false ); + } + + if( mFace == TreeList || mFace == IconList ) + { + mPageStack->raiseWidget( w ); + mActivePageWidget = w; + + int index = d->mPageToInt[w]; + mTitleLabel->setText( d->mIntToTitle[index] ); + if( mFace == TreeList ) + { + QMap<QListViewItem *, QWidget *>::Iterator it; + for (it = mTreeListToPageStack.begin(); it != mTreeListToPageStack.end(); ++it){ + QListViewItem *key = it.key(); + QWidget *val = it.data(); + if (val == w) { + mTreeList->setSelected(key, true ); + break; + } + } + } + else + { + QMap<QListBoxItem *, QWidget *>::Iterator it; + for (it = mIconListToPageStack.begin(); it != mIconListToPageStack.end(); ++it){ + QListBoxItem *key = it.key(); + QWidget *val = it.data(); + if (val == w) { + mIconList->setSelected( key, true ); + break; + } + } + } + } + else if( mFace == Tabbed ) + { + mTabControl->showPage(w); + mActivePageWidget = w; + } + else + { + return( false ); + } + + return( true ); +} + + +int KJanusWidget::activePageIndex() const +{ + if( mFace == TreeList) { + QListViewItem *node = mTreeList->selectedItem(); + if( node == 0 ) { return -1; } + QWidget *stackItem = mTreeListToPageStack[node]; + return d->mPageToInt[stackItem]; + } + else if (mFace == IconList) { + QListBoxItem *node = mIconList->item( mIconList->currentItem() ); + if( node == 0 ) { return( false ); } + QWidget *stackItem = mIconListToPageStack[node]; + return d->mPageToInt[stackItem]; + } + else if( mFace == Tabbed ) { + QWidget *widget = mTabControl->currentPage(); + return( widget == 0 ? -1 : d->mPageToInt[widget] ); + } + else { + return( -1 ); + } +} + + +int KJanusWidget::pageIndex( QWidget *widget ) const +{ + if( widget == 0 ) + { + return( -1 ); + } + else if( mFace == TreeList || mFace == IconList ) + { + return( d->mPageToInt[widget] ); + } + else if( mFace == Tabbed ) + { + // + // The user gets the real page widget with addVBoxPage(), addHBoxPage() + // and addGridPage() but not with addPage() which returns a child of + // the toplevel page. addPage() returns a QFrame so I check for that. + // + if( widget->isA("QFrame") ) + { + return( d->mPageToInt[widget->parentWidget()] ); + } + else + { + return( d->mPageToInt[widget] ); + } + } + else + { + return( -1 ); + } +} +/*US not yet implemented +void KJanusWidget::slotFontChanged() +{ + if( mTitleLabel != 0 ) + { + mTitleLabel->setFont( KGlobalSettings::generalFont() ); + QFont titleFont( mTitleLabel->font() ); + titleFont.setBold( true ); + mTitleLabel->setFont( titleFont ); + } + + if( mFace == IconList ) + { + QFont listFont( mIconList->font() ); + listFont.setBold( true ); + mIconList->setFont( listFont ); + mIconList->invalidateHeight(); + mIconList->invalidateWidth(); + } +} +*/ + +// makes the treelist behave like the list of kcontrol +void KJanusWidget::slotItemClicked(QListViewItem *it) +{ + if(it && (it->childCount()>0)) + it->setOpen(!it->isOpen()); +} + +void KJanusWidget::setFocus() +{ + if( mValid == false ) { return; } + if( mFace == TreeList ) + { + mTreeList->setFocus(); + } + if( mFace == IconList ) + { + mIconList->setFocus(); + } + else if( mFace == Tabbed ) + { + mTabControl->setFocus(); + } + else if( mFace == Swallow ) + { + mSwallowPage->setFocus(); + } + else if( mFace == Plain ) + { + mPlainPage->setFocus(); + } +} + + +QSize KJanusWidget::minimumSizeHint() const +{ + if( mFace == TreeList || mFace == IconList ) + { + QSize s1( KDialog::spacingHint(), KDialog::spacingHint()*2 ); + QSize s2(0,0); + QSize s3(0,0); + QSize s4( mPageStack->sizeHint() ); + + if( mFace == TreeList ) + { +/*US + s1.rwidth() += style().pixelMetric( QStyle::PM_SplitterWidth ); + s2 = mTreeList->minimumSize(); +*/ + } + else + { + mIconList->updateMinimumHeight(); + mIconList->updateWidth(); + s2 = mIconList->minimumSize(); + } + + if( mTitleLabel->isVisible() == true ) + { + s3 += mTitleLabel->sizeHint(); + s3.rheight() += mTitleSep->minimumSize().height(); + } + + // + // Select the tallest item. It has only effect in IconList mode + // + int h1 = s1.rheight() + s3.rheight() + s4.height(); + int h2 = QMAX( h1, s2.rheight() ); + + return( QSize( s1.width()+s2.width()+QMAX(s3.width(),s4.width()), h2 ) ); + } + else if( mFace == Tabbed ) + { + return( mTabControl->sizeHint() ); + } + else if( mFace == Swallow ) + { + return( mSwallowPage->minimumSize() ); + } + else if( mFace == Plain ) + { + return( mPlainPage->sizeHint() ); + } + else + { + return( QSize( 100, 100 ) ); // Should never happen though. + } + +} + + +QSize KJanusWidget::sizeHint() const +{ + return( minimumSizeHint() ); +} + + +void KJanusWidget::setTreeListAutoResize( bool state ) +{ + if( mFace == TreeList ) + { +/*US + mTreeListResizeMode = state == false ? + QSplitter::KeepSize : QSplitter::Stretch; + QSplitter *splitter = (QSplitter*)(mTreeList->parentWidget()); + splitter->setResizeMode( mTreeList, mTreeListResizeMode ); +*/ + } +} + + +void KJanusWidget::setIconListAllVisible( bool state ) +{ + if( mFace == IconList ) + { + mIconList->setShowAll( state ); + } +} + +void KJanusWidget::setShowIconsInTreeList( bool state ) +{ + mShowIconsInTreeList = state; +} + +void KJanusWidget::setRootIsDecorated( bool state ) +{ + if( mFace == TreeList ) { + mTreeList->setRootIsDecorated(state); + } +} + +void KJanusWidget::unfoldTreeList( bool persist ) +{ + if( mFace == TreeList ) + { + if( persist ) + connect( mTreeList, SIGNAL( collapsed( QListViewItem * ) ), this, SLOT( slotReopen( QListViewItem * ) ) ); + else + disconnect( mTreeList, SIGNAL( collapsed( QListViewItem * ) ), this, SLOT( slotReopen( QListViewItem * ) ) ); + + for( QListViewItem * item = mTreeList->firstChild(); item; item = item->itemBelow() ) + item->setOpen( true ); + } +} + +void KJanusWidget::showEvent( QShowEvent * ) +{ + if( mFace == TreeList ) + { +/*US + QSplitter *splitter = (QSplitter*)(mTreeList->parentWidget()); + splitter->setResizeMode( mTreeList, mTreeListResizeMode ); +*/ + } +} + + +// +// 2000-13-02 Espen Sand +// It should be obvious that this eventfilter must only be +// be installed on the vertical scrollbar of the mIconList. +// +bool KJanusWidget::eventFilter( QObject *o, QEvent *e ) +{ + if( e->type() == QEvent::Show ) + { + IconListItem *item = (IconListItem*)mIconList->item(0); + if( item != 0 ) + { + int lw = item->width( mIconList ); + int sw = mIconList->verticalScrollBar()->sizeHint().width(); + mIconList->setFixedWidth( lw+sw+mIconList->frameWidth()*2 ); + } + } + else if( e->type() == QEvent::Hide ) + { + IconListItem *item = (IconListItem*)mIconList->item(0); + if( item != 0 ) + { + int lw = item->width( mIconList ); + mIconList->setFixedWidth( lw+mIconList->frameWidth()*2 ); + } + } + return QWidget::eventFilter( o, e ); +} + + + +// +// Code for the icon list box +// + + +KJanusWidget::IconListBox::IconListBox( QWidget *parent, const char *name, + WFlags f ) + :KListBox( parent, name, f ), mShowAll(false), mHeightValid(false), + mWidthValid(false) +{ +} + + +void KJanusWidget::IconListBox::updateMinimumHeight() +{ + if( mShowAll == true && mHeightValid == false ) + { + int h = frameWidth()*2; + for( QListBoxItem *i = item(0); i != 0; i = i->next() ) + { + h += i->height( this ); + } + setMinimumHeight( h ); + mHeightValid = true; + } +} + + +void KJanusWidget::IconListBox::updateWidth() +{ + if( mWidthValid == false ) + { + int maxWidth = 10; + for( QListBoxItem *i = item(0); i != 0; i = i->next() ) + { + int w = ((IconListItem *)i)->width(this); + maxWidth = QMAX( w, maxWidth ); + } + + for( QListBoxItem *i = item(0); i != 0; i = i->next() ) + { + ((IconListItem *)i)->expandMinimumWidth( maxWidth ); + } + + if( verticalScrollBar()->isVisible() ) + { + maxWidth += verticalScrollBar()->sizeHint().width(); + } + + setFixedWidth( maxWidth + frameWidth()*2 ); + mWidthValid = true; + } +} + + +void KJanusWidget::IconListBox::invalidateHeight() +{ + mHeightValid = false; +} + + +void KJanusWidget::IconListBox::invalidateWidth() +{ + mWidthValid = false; +} + + +void KJanusWidget::IconListBox::setShowAll( bool showAll ) +{ + mShowAll = showAll; + mHeightValid = false; +} + + + +KJanusWidget::IconListItem::IconListItem( QListBox *listbox, const QPixmap &pixmap, + const QString &text ) + : QListBoxItem( listbox ) +{ + mPixmap = pixmap; + if( mPixmap.isNull() == true ) + { + mPixmap = defaultPixmap(); + } + setText( text ); + mMinimumWidth = 0; +} + + +int KJanusWidget::IconListItem::expandMinimumWidth( int width ) +{ + mMinimumWidth = QMAX( mMinimumWidth, width ); + return( mMinimumWidth ); +} + + +const QPixmap &KJanusWidget::IconListItem::defaultPixmap() +{ + static QPixmap *pix=0; + if( pix == 0 ) + { + pix = new QPixmap( 32, 32 ); + QPainter p( pix ); + p.eraseRect( 0, 0, pix->width(), pix->height() ); + p.setPen( Qt::red ); + p.drawRect ( 0, 0, pix->width(), pix->height() ); + p.end(); + + QBitmap mask( pix->width(), pix->height(), true); + mask.fill( Qt::black ); + p.begin( &mask ); + p.setPen( Qt::white ); + p.drawRect ( 0, 0, pix->width(), pix->height() ); + p.end(); + + pix->setMask( mask ); + } + return( *pix ); +} + + +void KJanusWidget::IconListItem::paint( QPainter *painter ) +{ + QFontMetrics fm = painter->fontMetrics(); + //int wt = fm.boundingRect(text()).width(); + int wp = mPixmap.width(); + int ht = fm.lineSpacing(); + int hp = mPixmap.height(); + + painter->drawPixmap( (mMinimumWidth-wp)/2, 5, mPixmap ); + if( text().isEmpty() == false ) + { + painter->drawText( 0, hp+7, mMinimumWidth, ht, Qt::AlignCenter, text() ); + } +} + +int KJanusWidget::IconListItem::height( const QListBox *lb ) const +{ + if( text().isEmpty() == true ) + { + return( mPixmap.height() ); + } + else + { + return( mPixmap.height() + lb->fontMetrics().lineSpacing()+10 ); + } +} + + +int KJanusWidget::IconListItem::width( const QListBox *lb ) const +{ + int wt = lb->fontMetrics().boundingRect(text()).width()+10; + int wp = mPixmap.width() + 10; + int w = QMAX( wt, wp ); + return( QMAX( w, mMinimumWidth ) ); +} + + +void KJanusWidget::virtual_hook( int, void* ) +{ /*BASE::virtual_hook( id, data );*/ } + +// TODO: In TreeList, if the last child of a node is removed, and there is no corrsponding widget for that node, allow the caller to +// delete the node. +void KJanusWidget::removePage( QWidget *page ) +{ +//US qDebug("KJanusWidget::removePage 1 %lu , %lu, %lu", d, page, &(d->mPageToInt)); + if (!d || !(d->mPageToInt.contains(page))) + { + return; + } + + int index = d->mPageToInt[page]; + + if ( mFace == TreeList ) + { + QMap<QListViewItem*, QWidget *>::Iterator i; + for( i = mTreeListToPageStack.begin(); i != mTreeListToPageStack.end(); ++i ) + if (i.data()==page) + { + delete i.key(); + mPageStack->removeWidget(page); + mTreeListToPageStack.remove(i); + d->mIntToTitle.remove(index); + d->mPageToInt.remove(page); + d->mIntToPage.remove(index); + break; + } + } + else if ( mFace == IconList ) + { + QMap<QListBoxItem*, QWidget *>::Iterator i; + for( i = mIconListToPageStack.begin(); i != mIconListToPageStack.end(); ++i ) + if (i.data()==page) + { + delete i.key(); + mPageStack->removeWidget(page); + mIconListToPageStack.remove(i); + d->mIntToTitle.remove(index); + d->mPageToInt.remove(page); + d->mIntToPage.remove(index); + break; + } + } + else // Tabbed + { + mTabControl->removePage(page); + d->mPageToInt.remove(page); + d->mIntToPage.remove(index); + } +} + +QString KJanusWidget::pageTitle(int index) const +{ + if (!d || !d->mIntToTitle.contains(index)) + return QString::null; + else + return d->mIntToTitle[index]; +} + +QWidget *KJanusWidget::pageWidget(int index) const +{ + if (!d || !d->mIntToPage.contains(index)) + return 0; + else + return d->mIntToPage[index]; +} + +//US #include "kjanuswidget.moc" |