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tdelibs/kdeui/kjanuswidget.cpp

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/* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#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 <kdialog.h> // Access to some static members
#include <klocale.h>
#include <kglobal.h>
#include <kglobalsettings.h>
#include <kseparator.h>
#include <kdebug.h>
#include "kjanuswidget.h"
#include <klistview.h>
#include "kpushbutton.h"
#include "kguiitem.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), mListFrame( 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;
QWidget * mListFrame;
QSplitter * mSplitter;
};
template class QPtrList<QListViewItem>;
KJanusWidget::KJanusWidget( QWidget *parent, const char *name, int face )
: QWidget( parent, name, 0 ),
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;
d->mSplitter = 0;
QFrame *page;
if( mFace == TreeList )
{
d->mSplitter = new QSplitter( this );
topLayout->addWidget( d->mSplitter, 10 );
mTreeListResizeMode = QSplitter::KeepSize;
d->mListFrame = new QWidget( d->mSplitter );
QVBoxLayout *dummy = new QVBoxLayout( d->mListFrame, 0, KDialog::spacingHint() );
dummy->setAutoAdd( true );
mTreeList = new KListView( d->mListFrame );
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( d->mSplitter );
QHBoxLayout *hbox = new QHBoxLayout( p, 0, 0 );
page = new QFrame( p );
hbox->addWidget( page, 10 );
}
else
{
QHBoxLayout *hbox = new QHBoxLayout( topLayout );
d->mListFrame = new QWidget( this );
hbox->addWidget( d->mListFrame );
( new QVBoxLayout( d->mListFrame, 0, 0 ) )->setAutoAdd( true );
mIconList = new IconListBox( d->mListFrame );
QFont listFont( mIconList->font() );
listFont.setBold( true );
mIconList->setFont( listFont );
mIconList->verticalScrollBar()->installEventFilter( this );
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( i18n("Empty Page"), page, "KJanusWidgetTitleLabel" );
vbox->addWidget( mTitleLabel, 0, QApplication::reverseLayout() ? AlignRight : AlignLeft );
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());
connect(mTabControl, SIGNAL(currentChanged(QWidget *)),
SIGNAL(aboutToShowPage(QWidget *)));
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 );
}
if ( kapp )
connect(kapp,SIGNAL(kdisplayFontChanged()),SLOT(slotFontChanged()));
mValid = true;
setSwallowedWidget(0); // Set default size if 'mFace' is Swallow.
}
KJanusWidget::~KJanusWidget()
{
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 )
{
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 )
{
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 )
{
kdDebug() << "addPage: Invalid object" << endl;
return 0;
}
QVBox *page = new QVBox(FindParent() , "page" );
page->setSpacing( KDialog::spacingHint() );
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 ) {
kdDebug() << "addPage: Invalid object" << endl;
return 0;
}
QHBox *page = new QHBox(FindParent(), "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, Orientation dir,
const QStringList &items,
const QString &header,
const QPixmap &pixmap )
{
if( !mValid )
{
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, Orientation 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 && !child) {
// 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) {
// 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 )
{
connect(page, SIGNAL(destroyed(QObject*)), SLOT(pageGone(QObject*)));
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.isEmpty()) {
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 )
{
return false;
}
//
// Remove current layout and make a new.
//
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 )
{
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 )
{
return false;
}
if( mFace == TreeList )
{
QListViewItem *node = mTreeList->selectedItem();
if( !node ) { 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 ) { 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 || !mValid )
{
return false;
}
else
{
return showPage(d->mIntToPage[index]);
}
}
bool KJanusWidget::showPage( QWidget *w )
{
if( !w || !mValid )
{
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 ) { return -1; }
QWidget *stackItem = mTreeListToPageStack[node];
return d->mPageToInt[stackItem];
}
else if (mFace == IconList) {
QListBoxItem *node = mIconList->item( mIconList->currentItem() );
if( !node ) { return false; }
QWidget *stackItem = mIconListToPageStack[node];
return d->mPageToInt[stackItem];
}
else if( mFace == Tabbed ) {
QWidget *widget = mTabControl->currentPage();
return ( !widget ? -1 : d->mPageToInt[widget] );
}
else {
return -1;
}
}
int KJanusWidget::pageIndex( QWidget *widget ) const
{
if( !widget )
{
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;
}
}
void KJanusWidget::slotFontChanged()
{
if( mTitleLabel )
{
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 ) { 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 )
{
s1.rwidth() += style().pixelMetric( QStyle::PM_SplitterWidth );
s2 = mTreeList->minimumSize();
}
else
{
mIconList->updateMinimumHeight();
mIconList->updateWidth();
s2 = mIconList->minimumSize();
}
if( mTitleLabel->isVisible() )
{
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 )
{
mTreeListResizeMode = !state ?
QSplitter::KeepSize : QSplitter::Stretch;
if( d->mSplitter )
d->mSplitter->setResizeMode( d->mListFrame, 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::addWidgetBelowList( QWidget * widget )
{
if( ( mFace == TreeList || mFace == IconList ) && d->mListFrame )
{
widget->reparent( d->mListFrame, QPoint() );
}
}
void KJanusWidget::addButtonBelowList( const QString & text, QObject * recv, const char * slot )
{
if( ( mFace == TreeList || mFace == IconList ) && d->mListFrame )
{
QPushButton * button = new QPushButton( text, d->mListFrame, "KJanusWidget::buttonBelowList" );
connect( button, SIGNAL( clicked() ), recv, slot );
}
}
void KJanusWidget::addButtonBelowList( const KGuiItem & item, QObject * recv, const char * slot )
{
if( ( mFace == TreeList || mFace == IconList ) && d->mListFrame )
{
KPushButton * button = new KPushButton( item, d->mListFrame, "KJanusWidget::buttonBelowList" );
connect( button, SIGNAL( clicked() ), recv, slot );
}
}
void KJanusWidget::showEvent( QShowEvent * )
{
if( mFace == TreeList )
{
if( d->mSplitter )
d->mSplitter->setResizeMode( d->mListFrame, 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 )
{
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 )
{
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 && !mHeightValid )
{
int h = frameWidth()*2;
for( QListBoxItem *i = item(0); i; i = i->next() )
{
h += i->height( this );
}
setMinimumHeight( h );
mHeightValid = true;
}
}
void KJanusWidget::IconListBox::updateWidth()
{
if( !mWidthValid )
{
int maxWidth = 10;
for( QListBoxItem *i = item(0); i; i = i->next() )
{
int w = ((IconListItem *)i)->width(this);
maxWidth = QMAX( w, maxWidth );
}
for( QListBoxItem *i = item(0); i; 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() )
{
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 )
{
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 ht = fm.boundingRect( 0, 0, 0, 0, Qt::AlignCenter, text() ).height();
int wp = mPixmap.width();
int hp = mPixmap.height();
painter->drawPixmap( (mMinimumWidth-wp)/2, 5, mPixmap );
if( !text().isEmpty() )
{
painter->drawText( 0, hp+7, mMinimumWidth, ht, Qt::AlignCenter, text() );
}
}
int KJanusWidget::IconListItem::height( const QListBox *lb ) const
{
if( text().isEmpty() )
{
return mPixmap.height();
}
else
{
int ht = lb->fontMetrics().boundingRect( 0, 0, 0, 0, Qt::AlignCenter, text() ).height();
return (mPixmap.height() + ht + 10);
}
}
int KJanusWidget::IconListItem::width( const QListBox *lb ) const
{
int wt = lb->fontMetrics().boundingRect( 0, 0, 0, 0, Qt::AlignCenter, 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 )
{
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];
}
#include "kjanuswidget.moc"
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