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koffice/chalk/ui/layerlist.cpp

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/*
Copyright (c) 2005 Gábor Lehel <illissius@gmail.com>
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 "layerlist.h"
#include <tqtooltip.h>
#include <tqbitmap.h>
#include <tqcursor.h>
#include <tqimage.h>
#include <tqheader.h>
#include <tqpainter.h>
#include <tqpixmap.h>
#include <tqsimplerichtext.h>
#include <tqtimer.h>
#include <tdeapplication.h>
#include <kdebug.h>
#include <tdeglobal.h>
#include <tdeglobalsettings.h>
#include <kiconloader.h>
#include <klineedit.h>
#include <tdelocale.h>
#include <tdepopupmenu.h>
#include <kstringhandler.h>
class LayerItemIterator: public TQListViewItemIterator
{
public:
LayerItemIterator( LayerList *list ): TQListViewItemIterator( list ) { }
LayerItemIterator( LayerList *list, IteratorFlag flags ): TQListViewItemIterator( list, flags ) { }
LayerItemIterator( LayerItem *item ): TQListViewItemIterator( item ) { }
LayerItemIterator( LayerItem *item, IteratorFlag flags ): TQListViewItemIterator( item, flags ) { }
LayerItem *operator*() { return static_cast<LayerItem*>( TQListViewItemIterator::operator*() ); }
};
struct LayerProperty
{
TQString name;
TQString displayName;
TQPixmap enabledIcon;
TQPixmap disabledIcon;
bool defaultValue;
bool validForFolders;
LayerProperty(): defaultValue( false ), validForFolders( true ) { }
LayerProperty( const TQString &pname, const TQString &pdisplayName, const TQPixmap &enabled, const TQPixmap &disabled,
bool pdefaultValue, bool pvalidForFolders )
: name( pname ),
displayName( pdisplayName ),
enabledIcon( enabled ),
disabledIcon( disabled ),
defaultValue( pdefaultValue ),
validForFolders( pvalidForFolders )
{ }
};
class LayerToolTip;
class LayerList::Private
{
public:
LayerItem *activeLayer;
bool foldersCanBeActive;
bool previewsShown;
int itemHeight;
TQValueList<LayerProperty> properties;
TDEPopupMenu contextMenu;
LayerToolTip *tooltip;
Private( TQWidget *parent, LayerList *list );
~Private();
};
class LayerItem::Private
{
public:
bool isFolder;
int id;
TQValueList<bool> properties;
TQImage *previewImage;
bool previewChanged;
TQPixmap scaledPreview;
TQSize previewSize;
TQPoint previewOffset;
Private( int pid ): isFolder( false ), id( pid ), previewImage( 0 ), previewChanged( false )
{ }
};
static const int MAX_SIZE = 256;
class LayerToolTip: public TQToolTip, public TQFrame
{
LayerList *m_list;
LayerItem *m_item;
TQPoint m_pos;
TQTimer m_timer;
TQImage m_img;
public:
LayerToolTip( TQWidget *parent, LayerList *list )
: TQToolTip( parent ),
TQFrame( 0, 0, WStyle_Customize | WStyle_NoBorder | WStyle_Tool | WStyle_StaysOnTop | WX11BypassWM | WNoAutoErase ),
m_list( list )
{
TQFrame::setPalette( TQToolTip::palette() );
connect( &m_timer, TQT_SIGNAL( timeout() ), m_list, TQT_SLOT( hideTip() ) );
tqApp->installEventFilter( this );
}
virtual void maybeTip( const TQPoint &pos )
{
m_pos = pos;
LayerItem *prev = m_item;
m_item = static_cast<LayerItem*>(m_list->itemAt( m_pos ));
if( TQToolTip::parentWidget() && m_list->showToolTips() && m_item )
{
if( m_item != prev )
hideTip();
showTip();
}
else
hideTip();
}
void showTip()
{
m_img = m_item->tooltipPreview();
m_timer.start( 15000, true );
if( !isVisible() || sizeHint() != size() )
{
resize( sizeHint() );
position();
}
if( !isVisible() )
show();
else
update();
}
void hideTip()
{
if( !isVisible() )
return;
TQFrame::hide();
TQToolTip::hide();
m_timer.stop();
m_img.reset();
m_list->triggerUpdate();
}
virtual void drawContents( TQPainter *painter )
{
TQPixmap buf( width(), height() );
TQPainter p( &buf );
buf.fill( colorGroup().background() );
p.setPen( colorGroup().foreground() );
p.drawRect( buf.rect() );
TQSimpleRichText text( m_item->tooltip(), TQToolTip::font() );
text.setWidth( TQCOORD_MAX );
p.translate( 5, 5 );
if( !m_img.isNull() )
{
if( m_img.width() > MAX_SIZE || m_img.height() > MAX_SIZE )
m_img = m_img.scale( MAX_SIZE, MAX_SIZE, TQImage::ScaleMin );
int y = 0;
if( m_img.height() < text.height() )
y = text.height()/2 - m_img.height()/2;
p.drawImage( 0, y, m_img );
p.drawRect( -1, y-1, m_img.width()+2, m_img.height()+2 );
p.translate( m_img.width() + 10, 0 );
}
text.draw( &p, 0, 0, rect(), colorGroup() );
painter->drawPixmap( 0, 0, buf );
}
virtual TQSize sizeHint() const
{
if( !m_item )
return TQSize( 0, 0 );
TQSimpleRichText text( m_item->tooltip(), TQToolTip::font() );
text.setWidth( TQCOORD_MAX );
int width = text.widthUsed();
if( !m_img.isNull() )
width += kMin( m_img.width(), MAX_SIZE ) + 10;
width += 10;
int height = text.height();
if( !m_img.isNull() && kMin( m_img.height(), MAX_SIZE ) > height )
height = kMin( m_img.height(), MAX_SIZE );
height += 10;
return TQSize( width, height );
}
void position()
{
const TQRect drect = TQApplication::desktop()->availableGeometry( TQToolTip::parentWidget() );
const TQSize size = sizeHint();
const int width = size.width(), height = size.height();
const TQRect tmp = m_item->rect();
const TQRect irect( m_list->viewport()->mapToGlobal( m_list->contentsToViewport(tmp.topLeft()) ), tmp.size() );
int y;
if( irect.bottom() + height < drect.bottom() )
y = irect.bottom();
else
y = kMax( drect.top(), irect.top() - height );
int x = kMax( drect.x(), TQToolTip::parentWidget()->mapToGlobal( m_pos ).x() - width/2 );
if( x + width > drect.right() )
x = drect.right() - width;
move( x, y );
}
virtual bool eventFilter( TQObject *, TQEvent *e )
{
if( isVisible() )
switch ( e->type() )
{
case TQEvent::KeyPress:
case TQEvent::KeyRelease:
case TQEvent::MouseButtonPress:
case TQEvent::MouseButtonRelease:
//case TQEvent::MouseMove:
case TQEvent::FocusIn:
case TQEvent::FocusOut:
case TQEvent::Wheel:
case TQEvent::Leave:
hideTip();
default: break;
}
return false;
}
};
LayerList::Private::Private( TQWidget *parent, LayerList *list )
: activeLayer( 0 ), foldersCanBeActive( false ), previewsShown( false ), itemHeight( 32 ),
tooltip( new LayerToolTip( parent, list ) ) { }
LayerList::Private::~Private()
{
delete tooltip;
tooltip = 0;
}
static int getID()
{
static int id = -2;
return id--;
}
static TQSize iconSize() { return TQIconSet::iconSize( TQIconSet::Small ); }
///////////////
// LayerList //
///////////////
LayerList::LayerList( TQWidget *parent, const char *name )
: super( parent, name ), d( new Private( viewport(), this ) )
{
setSelectionMode( TQListView::Extended );
setRootIsDecorated( true );
setSorting( -1 );
setSortColumn( -1 );
setAllColumnsShowFocus( true );
setFullWidth( true );
setItemsRenameable( false );
setDropHighlighter( true );
setDefaultRenameAction( TQListView::Accept );
setDragEnabled( true );
setAcceptDrops( true );
setItemsMovable( true );
addColumn( TQString() );
header()->hide();
TQToolTip::add(this, i18n("Right-click to create folders. Click on the layername to change the layer's name. Click and drag to move layers."));
setNumRows( 2 );
connect( this, TQT_SIGNAL( itemRenamed( TQListViewItem*, const TQString&, int ) ),
TQT_SLOT( slotItemRenamed( TQListViewItem*, const TQString&, int ) ) );
connect( this, TQT_SIGNAL( moved( TQPtrList<TQListViewItem>&, TQPtrList<TQListViewItem>&, TQPtrList<TQListViewItem>& ) ),
TQT_SLOT( slotItemMoved( TQPtrList<TQListViewItem>&, TQPtrList<TQListViewItem>&, TQPtrList<TQListViewItem>& ) ) );
connect( this, TQT_SIGNAL( onItem( TQListViewItem* ) ), TQT_SLOT( hideTip() ) );
connect( this, TQT_SIGNAL( onViewport() ), TQT_SLOT( hideTip() ) );
}
LayerList::~LayerList()
{
delete d;
}
void LayerList::addProperty( const TQString &name, const TQString &displayName, const TQIconSet &icon,
bool defaultValue, bool validForFolders )
{
addProperty( name, displayName, icon.pixmap( TQIconSet::Small, TQIconSet::Normal ), icon.pixmap( TQIconSet::Small, TQIconSet::Disabled ), defaultValue, validForFolders );
}
void LayerList::addProperty( const TQString &name, const TQString &displayName, TQPixmap enabled, TQPixmap disabled,
bool defaultValue, bool validForFolders )
{
d->properties.append( LayerProperty( name, displayName, enabled, disabled, defaultValue, validForFolders ) );
for( LayerItemIterator it( this ); *it; ++it )
(*it)->d->properties.append( defaultValue );
//we do this only afterwards in case someone wants to access the other items in a connected slot...
for( LayerItemIterator it( this ); *it; ++it )
if( validForFolders || !(*it)->isFolder() )
{
emit propertyChanged( *it, name, defaultValue );
emit propertyChanged( (*it)->id(), name, defaultValue );
}
triggerUpdate();
}
LayerItem *LayerList::layer( int id ) const
{
if( !firstChild() || id == -1 )
return 0;
for( LayerItemIterator it( firstChild() ); *it; ++it )
if( (*it)->id() == id )
return (*it);
return 0;
}
LayerItem *LayerList::folder( int id ) const
{
if( !firstChild() || id == -1 )
return 0;
for( LayerItemIterator it( firstChild() ); *it; ++it )
if( (*it)->id() == id && (*it)->isFolder() )
return (*it);
return 0;
}
LayerItem *LayerList::activeLayer() const
{
return d->activeLayer;
}
int LayerList::activeLayerID() const
{
if( activeLayer() )
return activeLayer()->id();
return -1;
}
TQValueList<LayerItem*> LayerList::selectedLayers() const
{
if( !firstChild() )
return TQValueList<LayerItem*>();
TQValueList<LayerItem*> layers;
for( LayerItemIterator it( firstChild() ); *it; ++it )
if( (*it)->isSelected() )
layers.append( *it );
return layers;
}
TQValueList<int> LayerList::selectedLayerIDs() const
{
const TQValueList<LayerItem*> layers = selectedLayers();
TQValueList<int> ids;
for( int i = 0, n = layers.count(); i < n; ++i )
ids.append( layers[i]->id() );
return ids;
}
bool LayerList::foldersCanBeActive() const
{
return d->foldersCanBeActive;
}
bool LayerList::previewsShown() const
{
return d->previewsShown;
}
int LayerList::itemHeight() const
{
return d->itemHeight;
}
int LayerList::numRows() const
{
if( itemHeight() < kMax( fontMetrics().height(), iconSize().height() ) )
return 0;
return ( itemHeight() - fontMetrics().height() ) / iconSize().height() + 1;
}
void LayerList::makeFolder( int id )
{
LayerItem* const l = layer( id );
if( l )
l->makeFolder();
}
bool LayerList::isFolder( int id ) const
{
LayerItem* const l = layer( id );
if( !l )
return false;
return l->isFolder();
}
TQString LayerList::displayName( int id ) const
{
LayerItem* const l = layer( id );
if( !l )
return TQString(); //should be more severe...
return l->displayName();
}
bool LayerList::property( int id, const TQString &name ) const
{
LayerItem* const l = layer( id );
if( !l )
return false; //should be more severe...
return l->property( name );
}
TDEPopupMenu *LayerList::contextMenu() const
{
return &( d->contextMenu );
}
void LayerList::setFoldersCanBeActive( bool can ) //SLOT
{
d->foldersCanBeActive = can;
if( !can && activeLayer() && activeLayer()->isFolder() )
{
d->activeLayer = 0;
emit activated( static_cast<LayerItem*>( 0 ) );
emit activated( -1 );
}
}
void LayerList::setPreviewsShown( bool show ) //SLOT
{
d->previewsShown = show;
triggerUpdate();
}
void LayerList::setItemHeight( int height ) //SLOT
{
d->itemHeight = height;
for( LayerItemIterator it( this ); *it; ++it )
(*it)->setup();
triggerUpdate();
}
void LayerList::setNumRows( int rows )
{
if( rows < 1 )
return;
if( rows == 1 )
setItemHeight( kMax( fontMetrics().height(), iconSize().height() ) );
else
setItemHeight( fontMetrics().height() + ( rows - 1 ) * iconSize().height() );
}
void LayerList::setActiveLayer( LayerItem *layer ) //SLOT
{
if( !foldersCanBeActive() && layer && layer->isFolder() )
return;
ensureItemVisible( layer );
if( d->activeLayer == layer )
return;
d->activeLayer = layer;
if( currentItem() != layer )
setCurrentItem( layer );
else
{
int n = 0;
for( LayerItemIterator it( this, LayerItemIterator::Selected ); n < 2 && (*it); ++it ) { n++; }
if( n == 1 )
(*LayerItemIterator( this, LayerItemIterator::Selected ))->setSelected( false );
if( layer )
layer->setSelected( true );
}
emit activated( layer );
if( layer )
emit activated( layer->id() );
else
emit activated( -1 );
}
void LayerList::setActiveLayer( int id ) //SLOT
{
setActiveLayer( layer( id ) );
}
void LayerList::setLayerDisplayName( LayerItem *layer, const TQString &displayName )
{
if( !layer )
return;
layer->setDisplayName( displayName );
}
void LayerList::setLayerDisplayName( int id, const TQString &displayName )
{
setLayerDisplayName( layer( id ), displayName );
}
void LayerList::setLayerProperty( LayerItem *layer, const TQString &name, bool on ) //SLOT
{
if( !layer )
return;
layer->setProperty( name, on );
}
void LayerList::setLayerProperty( int id, const TQString &name, bool on ) //SLOT
{
setLayerProperty( layer( id ), name, on );
}
void LayerList::toggleLayerProperty( LayerItem *layer, const TQString &name ) //SLOT
{
if( !layer )
return;
layer->toggleProperty( name );
}
void LayerList::toggleLayerProperty( int id, const TQString &name ) //SLOT
{
toggleLayerProperty( layer( id ), name );
}
void LayerList::setLayerPreviewImage( LayerItem *layer, TQImage *image )
{
if( !layer )
return;
layer->setPreviewImage( image );
}
void LayerList::setLayerPreviewImage( int id, TQImage *image )
{
setLayerPreviewImage( layer( id ), image );
}
void LayerList::layerPreviewChanged( LayerItem *layer )
{
if( !layer )
return;
layer->previewChanged();
}
void LayerList::layerPreviewChanged( int id )
{
layerPreviewChanged( layer( id ) );
}
LayerItem *LayerList::addLayer( const TQString &displayName, LayerItem *after, int id ) //SLOT
{
return new LayerItem( displayName, this, after, id );
}
LayerItem *LayerList::addLayer( const TQString &displayName, int afterID, int id ) //SLOT
{
return new LayerItem( displayName, this, layer( afterID ), id );
}
//SLOT
LayerItem *LayerList::addLayerToParent( const TQString &displayName, LayerItem *parent, LayerItem *after, int id )
{
if( parent && parent->isFolder() )
return parent->addLayer( displayName, after, id );
else
return 0;
}
LayerItem *LayerList::addLayerToParent( const TQString &displayName, int parentID, int afterID, int id ) //SLOT
{
return addLayerToParent( displayName, folder( parentID ), layer( afterID ), id );
}
void LayerList::moveLayer( LayerItem *layer, LayerItem *parent, LayerItem *after ) //SLOT
{
if( !layer )
return;
if( parent && !parent->isFolder() )
parent = 0;
if( layer->parent() == parent && layer->prevSibling() == after )
return;
TQListViewItem *current = currentItem();
moveItem( layer, parent, after );
emit layerMoved( layer, parent, after );
emit layerMoved( layer->id(), parent ? parent->id() : -1, after ? after->id() : -1 );
setCurrentItem( current ); //HACK, sometimes TQt changes this under us
}
void LayerList::moveLayer( int id, int parentID, int afterID ) //SLOT
{
moveLayer( layer( id ), folder( parentID ), layer( afterID ) );
}
void LayerList::removeLayer( LayerItem *layer ) //SLOT
{
delete layer;
}
void LayerList::removeLayer( int id ) //SLOT
{
delete layer( id );
}
void LayerList::contentsMousePressEvent( TQMouseEvent *e )
{
LayerItem *item = static_cast<LayerItem*>( itemAt( contentsToViewport( e->pos() ) ) );
if( item )
{
TQMouseEvent m( TQEvent::MouseButtonPress, item->mapFromListView( e->pos() ), e->button(), e->state() );
if( !item->mousePressEvent( &m ) )
super::contentsMousePressEvent( e );
}
else
{
super::contentsMousePressEvent( e );
if( e->button() == Qt::RightButton )
showContextMenu();
}
}
void LayerList::contentsMouseDoubleClickEvent( TQMouseEvent *e )
{
super::contentsMouseDoubleClickEvent( e );
if( LayerItem *layer = static_cast<LayerItem*>( itemAt( contentsToViewport( e->pos() ) ) ) )
{
if( !layer->iconsRect().contains( layer->mapFromListView( e->pos() ) ) )
{
emit requestLayerProperties( layer );
emit requestLayerProperties( layer->id() );
}
}
else
{
emit requestNewLayer( static_cast<LayerItem*>( 0 ), static_cast<LayerItem*>( 0 ) );
emit requestNewLayer( -1, -1 );
}
}
void LayerList::findDrop( const TQPoint &pos, TQListViewItem *&parent, TQListViewItem *&after )
{
LayerItem *item = static_cast<LayerItem*>( itemAt( contentsToViewport( pos ) ) );
if( item && item->isFolder() )
{
parent = item;
after = 0;
}
else
super::findDrop( pos, parent, after );
}
void LayerList::showContextMenu()
{
LayerItem *layer = static_cast<LayerItem*>( itemAt( viewport()->mapFromGlobal( TQCursor::pos() ) ) );
if( layer )
setCurrentItem( layer );
d->contextMenu.clear();
constructMenu( layer );
menuActivated( d->contextMenu.exec( TQCursor::pos() ), layer );
}
void LayerList::hideTip()
{
d->tooltip->hideTip();
}
void LayerList::maybeTip()
{
d->tooltip->maybeTip( d->tooltip->TQToolTip::parentWidget()->mapFromGlobal( TQCursor::pos() ) );
}
void LayerList::constructMenu( LayerItem *layer )
{
if( layer )
{
for( int i = 0, n = d->properties.count(); i < n; ++i )
if( !layer->isFolder() || d->properties[i].validForFolders )
d->contextMenu.insertItem( layer->d->properties[i] ? d->properties[i].enabledIcon : d->properties[i].disabledIcon, d->properties[i].displayName, MenuItems::COUNT + i );
d->contextMenu.insertItem( SmallIconSet( "application-vnd.tde.info" ), i18n( "&Properties" ), MenuItems::LayerProperties );
d->contextMenu.insertSeparator();
d->contextMenu.insertItem( SmallIconSet( "edit-delete" ),
selectedLayers().count() > 1 ? i18n( "Remove Layers" )
: layer->isFolder() ? i18n( "&Remove Folder" )
: i18n( "&Remove Layer" ), MenuItems::RemoveLayer );
}
d->contextMenu.insertItem( SmallIconSet( "document-new" ), i18n( "&New Layer" ), MenuItems::NewLayer );
d->contextMenu.insertItem( SmallIconSet( "folder" ), i18n( "New &Folder" ), MenuItems::NewFolder );
}
void LayerList::menuActivated( int id, LayerItem *layer )
{
const TQValueList<LayerItem*> selected = selectedLayers();
LayerItem *parent = ( layer && layer->isFolder() ) ? layer : 0;
LayerItem *after = 0;
if( layer && !parent )
{
parent = layer->parent();
after = layer->prevSibling();
}
switch( id )
{
case MenuItems::NewLayer:
emit requestNewLayer( parent, after );
emit requestNewLayer( parent ? parent->id() : -1, after ? after->id() : -1 );
break;
case MenuItems::NewFolder:
emit requestNewFolder( parent, after );
emit requestNewFolder( parent ? parent->id() : -1, after ? after->id() : -1 );
break;
case MenuItems::RemoveLayer:
{
TQValueList<int> ids;
for( int i = 0, n = selected.count(); i < n; ++i )
{
ids.append( selected[i]->id() );
emit requestRemoveLayer( selected[i]->id() );
}
emit requestRemoveLayers( ids );
}
for( int i = 0, n = selected.count(); i < n; ++i )
emit requestRemoveLayer( selected[i] );
emit requestRemoveLayers( selected );
break;
case MenuItems::LayerProperties:
if( layer )
{
emit requestLayerProperties( layer );
emit requestLayerProperties( layer->id() );
}
break;
default:
if( id >= MenuItems::COUNT && layer )
for( int i = 0, n = selected.count(); i < n; ++i )
selected[i]->toggleProperty( d->properties[ id - MenuItems::COUNT ].name );
}
}
void LayerList::slotItemRenamed( TQListViewItem *item, const TQString &text, int col )
{
if( !item || col != 0 )
return;
emit displayNameChanged( static_cast<LayerItem*>( item ), text );
emit displayNameChanged( static_cast<LayerItem*>( item )->id(), text );
}
void LayerList::slotItemMoved( TQPtrList<TQListViewItem> &items, TQPtrList<TQListViewItem> &/*afterBefore*/, TQPtrList<TQListViewItem> &afterNow )
{
for( int i = 0, n = items.count(); i < n; ++i )
{
LayerItem *l = static_cast<LayerItem*>( items.at(i) ), *a = static_cast<LayerItem*>( afterNow.at(i) );
if( !l )
continue;
if( l->parent() )
l->parent()->setOpen( true );
emit layerMoved( l, l->parent(), a );
emit layerMoved( l->id(), l->parent() ? l->parent()->id() : -1, a ? a->id() : -1 );
}
}
void LayerList::setCurrentItem( TQListViewItem *item )
{
if( !item )
return;
super::setCurrentItem( item );
ensureItemVisible( item );
int n = 0;
for( LayerItemIterator it( this, LayerItemIterator::Selected ); n < 2 && (*it); ++it ) { n++; }
if( n == 1 )
(*LayerItemIterator( this, LayerItemIterator::Selected ))->setSelected( false );
item->setSelected( true );
if( activeLayer() != item )
setActiveLayer( static_cast<LayerItem*>(item) );
}
///////////////
// LayerItem //
///////////////
LayerItem::LayerItem( const TQString &displayName, LayerList *p, LayerItem *after, int id )
: super( p, after ), d( new Private( id ) )
{
init();
setDisplayName( displayName );
}
LayerItem::LayerItem( const TQString &displayName, LayerItem *p, LayerItem *after, int id )
: super( ( p && p->isFolder() ) ? p : 0, after ), d( new Private( id ) )
{
init();
setDisplayName( displayName );
}
void LayerItem::init()
{
if( d->id < 0 )
d->id = getID();
for( int i = 0, n = listView()->d->properties.count(); i < n; ++i )
d->properties.append( listView()->d->properties[i].defaultValue );
if( parent())
parent()->setOpen( true );
}
LayerItem::~LayerItem()
{
if (listView() && (listView()->activeLayer() == this || contains(listView()->activeLayer())))
listView()->setActiveLayer( static_cast<LayerItem*>( 0 ) );
delete d;
}
void LayerItem::makeFolder()
{
d->isFolder = true;
setPixmap( 0, SmallIcon( "folder", 16 ) );
if( isActive() && !listView()->foldersCanBeActive() )
listView()->setActiveLayer( static_cast<LayerItem*>( 0 ) );
}
bool LayerItem::isFolder() const
{
return d->isFolder;
}
bool LayerItem::contains(const LayerItem *item)
{
TQListViewItemIterator it(this);
while (it.current()) {
if (static_cast<const LayerItem *>(it.current()) == item) {
return true;
}
++it;
}
return false;
}
int LayerItem::id() const
{
return d->id;
}
TQString LayerItem::displayName() const
{
return text( 0 );
}
void LayerItem::setDisplayName( const TQString &s )
{
if( displayName() == s )
return;
setText( 0, s );
emit listView()->displayNameChanged( this, s );
emit listView()->displayNameChanged( id(), s );
}
bool LayerItem::isActive() const
{
return listView()->activeLayer() == this;
}
void LayerItem::setActive()
{
listView()->setActiveLayer( this );
}
bool LayerItem::property( const TQString &name ) const
{
int i = listView()->d->properties.count() - 1;
while( i && listView()->d->properties[i].name != name )
--i;
if( i < 0 )
return false; //should do something more severe... but what?
return d->properties[i];
}
void LayerItem::setProperty( const TQString &name, bool on )
{
int i = listView()->d->properties.count() - 1;
while( i && listView()->d->properties[i].name != name )
--i;
if( i < 0 || ( isFolder() && !listView()->d->properties[i].validForFolders ) )
return;
const bool notify = ( on != d->properties[i] );
d->properties[i] = on;
if( notify )
{
emit listView()->propertyChanged( this, name, on );
emit listView()->propertyChanged( id(), name, on );
}
update();
}
void LayerItem::toggleProperty( const TQString &name )
{
int i = listView()->d->properties.count() - 1;
while( i && listView()->d->properties[i].name != name )
--i;
if( i < 0 || ( isFolder() && !listView()->d->properties[i].validForFolders ) )
return;
d->properties[i] = !(d->properties[i]);
emit listView()->propertyChanged( this, name, d->properties[i] );
emit listView()->propertyChanged( id(), name, d->properties[i] );
update();
}
void LayerItem::setPreviewImage( TQImage *image )
{
d->previewImage = image;
previewChanged();
}
void LayerItem::previewChanged()
{
d->previewChanged = true;
update();
}
LayerItem *LayerItem::addLayer( const TQString &displayName, LayerItem *after, int id )
{
if( !isFolder() )
return 0;
return new LayerItem( displayName, this, after, id );
}
LayerItem *LayerItem::prevSibling() const
{
LayerItem *item = parent() ? parent()->firstChild() : listView()->firstChild();
if( !item || this == item )
return 0;
for(; item && this != item->nextSibling(); item = item->nextSibling() );
return item;
}
int LayerItem::mapXFromListView( int x ) const
{
return x - rect().left();
}
int LayerItem::mapYFromListView( int y ) const
{
return y - rect().top();
}
TQPoint LayerItem::mapFromListView( const TQPoint &point ) const
{
return TQPoint( mapXFromListView( point.x() ), mapYFromListView( point.y() ) );
}
TQRect LayerItem::mapFromListView( const TQRect &rect ) const
{
return TQRect( mapFromListView( rect.topLeft() ), rect.size() );
}
int LayerItem::mapXToListView( int x ) const
{
return x + rect().left();
}
int LayerItem::mapYToListView( int y ) const
{
return y + rect().top();
}
TQPoint LayerItem::mapToListView( const TQPoint &point ) const
{
return TQPoint( mapXToListView( point.x() ), mapYToListView( point.y() ) );
}
TQRect LayerItem::mapToListView( const TQRect &rect ) const
{
return TQRect( mapToListView( rect.topLeft() ), rect.size() );
}
TQRect LayerItem::rect() const
{
const int indent = listView()->treeStepSize() * ( depth() + 1 );
return TQRect( listView()->header()->sectionPos( 0 ) + indent, itemPos(),
listView()->header()->sectionSize( 0 ) - indent, height() );
}
TQRect LayerItem::textRect() const
{
static TQFont f;
static int minbearing = 1337 + 666; //can be 0 or negative, 2003 is less likely
if( minbearing == 2003 || f != font() )
{
f = font(); //getting your bearings can be expensive, so we cache them
minbearing = fontMetrics().minLeftBearing() + fontMetrics().minRightBearing();
}
const int margin = listView()->itemMargin();
int indent = previewRect().right() + margin;
if( pixmap( 0 ) )
indent += pixmap( 0 )->width() + margin;
const int width = ( multiline() ? rect().right() : iconsRect().left() ) - indent - margin + minbearing;
return TQRect( indent, 0, width, fontMetrics().height() );
}
TQRect LayerItem::iconsRect() const
{
const TQValueList<LayerProperty> &lp = listView()->d->properties;
int propscount = 0;
for( int i = 0, n = lp.count(); i < n; ++i )
if( !lp[i].enabledIcon.isNull() && ( !multiline() || !isFolder() || lp[i].validForFolders ) )
propscount++;
const int iconswidth = propscount * iconSize().width() + (propscount - 1) * listView()->itemMargin();
const int x = multiline() ? previewRect().right() + listView()->itemMargin() : rect().width() - iconswidth;
const int y = multiline() ? fontMetrics().height() : 0;
return TQRect( x, y, iconswidth, iconSize().height() );
}
TQRect LayerItem::previewRect() const
{
return TQRect( 0, 0, listView()->previewsShown() ? height() : 0, height() );
}
void LayerItem::drawText( TQPainter *p, const TQColorGroup &cg, const TQRect &r )
{
p->translate( r.left(), r.top() );
p->setPen( isSelected() ? cg.highlightedText() : cg.text() );
const TQString text = KStringHandler::rPixelSqueeze( displayName(), p->fontMetrics(), r.width() );
p->drawText( listView()->itemMargin(), 0, r.width(), r.height(), TQt::AlignAuto | TQt::AlignTop, text );
p->translate( -r.left(), -r.top() );
}
void LayerItem::drawIcons( TQPainter *p, const TQColorGroup &/*cg*/, const TQRect &r )
{
p->translate( r.left(), r.top() );
int x = 0;
const TQValueList<LayerProperty> &lp = listView()->d->properties;
for( int i = 0, n = lp.count(); i < n; ++i )
if( !lp[i].enabledIcon.isNull() && ( !multiline() || !isFolder() || lp[i].validForFolders ) )
{
if( !isFolder() || lp[i].validForFolders )
p->drawPixmap( x, 0, d->properties[i] ? lp[i].enabledIcon : lp[i].disabledIcon );
x += iconSize().width() + listView()->itemMargin();
}
p->translate( -r.left(), -r.top() );
}
void LayerItem::drawPreview( TQPainter *p, const TQColorGroup &/*cg*/, const TQRect &r )
{
if( !showPreview() )
return;
if( d->previewChanged || r.size() != d->previewSize )
{ //TODO handle width() != height()
const int size = kMin( r.width(), kMax( previewImage()->width(), previewImage()->height() ) );
const TQImage i = previewImage()->smoothScale( size, size, TQImage::ScaleMin );
d->scaledPreview.convertFromImage( i );
d->previewOffset.setX( r.width()/2 - i.width()/2 );
d->previewOffset.setY( r.height()/2 - i.height()/2 );
d->previewChanged = false;
d->previewSize = r.size();
}
p->drawPixmap( r.topLeft() + d->previewOffset, d->scaledPreview );
}
bool LayerItem::showPreview() const
{
return listView()->previewsShown() && previewImage() && !previewImage()->isNull();
}
bool LayerItem::multiline() const
{
return height() >= fontMetrics().height() + iconSize().height();
}
TQFont LayerItem::font() const
{
if( isActive() )
{
TQFont f = listView()->font();
f.setBold( !f.bold() );
f.setItalic( !f.italic() );
return f;
}
else
return listView()->font();
}
TQFontMetrics LayerItem::fontMetrics() const
{
return TQFontMetrics( font() );
}
bool LayerItem::mousePressEvent( TQMouseEvent *e )
{
if( e->button() == Qt::RightButton )
{
if ( !(e->state() & TQt::ControlButton) && !(e->state() & TQt::ShiftButton) )
setActive();
TQTimer::singleShot( 0, listView(), TQT_SLOT( showContextMenu() ) );
return false;
}
const TQRect ir = iconsRect(), tr = textRect();
if( ir.contains( e->pos() ) )
{
const int iconWidth = iconSize().width();
int x = e->pos().x() - ir.left();
if( x % ( iconWidth + listView()->itemMargin() ) < iconWidth ) //it's on an icon, not a margin
{
const TQValueList<LayerProperty> &lp = listView()->d->properties;
int p = -1;
for( int i = 0, n = lp.count(); i < n; ++i )
{
if( !lp[i].enabledIcon.isNull() && ( !multiline() || !isFolder() || lp[i].validForFolders ) )
x -= iconWidth + listView()->itemMargin();
p += 1;
if( x < 0 )
break;
}
toggleProperty( lp[p].name );
}
return true;
}
else if( tr.contains( e->pos() ) && isSelected() && !listView()->renameLineEdit()->isVisible() )
{
listView()->rename( this, 0 );
TQRect r( listView()->contentsToViewport( mapToListView( tr.topLeft() ) ), tr.size() );
listView()->renameLineEdit()->setGeometry( r );
return true;
}
if ( !(e->state() & TQt::ControlButton) && !(e->state() & TQt::ShiftButton) )
setActive();
return false;
}
TQString LayerItem::tooltip() const
{
TQString tip;
tip += "<table cellspacing=\"0\" cellpadding=\"0\">";
tip += TQString("<tr><td colspan=\"2\" align=\"center\"><b>%1</b></td></tr>").arg( displayName() );
TQString row = "<tr><td>%1</td><td>%2</td></tr>";
for( int i = 0, n = listView()->d->properties.count(); i < n; ++i )
if( !isFolder() || listView()->d->properties[i].validForFolders )
{
if( d->properties[i] )
tip += row.arg( i18n( "%1:" ).arg( listView()->d->properties[i].displayName ) ).arg( i18n( "Yes" ) );
else
tip += row.arg( i18n( "%1:" ).arg( listView()->d->properties[i].displayName ) ).arg( i18n( "No" ) );
}
tip += "</table>";
return tip;
}
TQImage *LayerItem::previewImage() const
{
return d->previewImage;
}
TQImage LayerItem::tooltipPreview() const
{
if( previewImage() )
return *previewImage();
return TQImage();
}
int LayerItem::width( const TQFontMetrics &fm, const TQListView *lv, int c ) const
{
if( c != 0 )
return super::width( fm, lv, c );
const TQValueList<LayerProperty> &lp = listView()->d->properties;
int propscount = 0;
for( int i = 0, n = d->properties.count(); i < n; ++i )
if( !lp[i].enabledIcon.isNull() && ( !multiline() || !isFolder() || lp[i].validForFolders ) )
propscount++;
const int iconswidth = propscount * iconSize().width() + (propscount - 1) * listView()->itemMargin();
if( multiline() )
return kMax( super::width( fm, lv, 0 ), iconswidth );
else
return super::width( fm, lv, 0 ) + iconswidth;
}
void LayerItem::paintCell( TQPainter *painter, const TQColorGroup &cg, int column, int width, int align )
{
if( column != 0 )
{
super::paintCell( painter, cg, column, width, align );
return;
}
TQPixmap buf( width, height() );
TQPainter p( &buf );
p.setFont( font() );
const TQColorGroup cg_ = isEnabled() ? listView()->palette().active() : listView()->palette().disabled();
const TQColor bg = isSelected() ? cg_.highlight()
: isAlternate() ? listView()->alternateBackground()
: listView()->viewport()->backgroundColor();
buf.fill( bg );
if( pixmap( 0 ) )
p.drawPixmap( previewRect().right() + listView()->itemMargin(), 0, *pixmap( 0 ) );
drawText( &p, cg_, textRect() );
drawIcons( &p, cg_, iconsRect() );
drawPreview( &p, cg_, previewRect() );
painter->drawPixmap( 0, 0, buf );
}
void LayerItem::setup()
{
super::setup();
setHeight( listView()->d->itemHeight );
}
void LayerItem::setSelected( bool selected )
{
if( !selected && ( isActive() || this == listView()->currentItem() ) )
return;
super::setSelected( selected );
}
/////////////////////////
// Convenience Methods //
/////////////////////////
LayerItem *LayerList::firstChild() const { return static_cast<LayerItem*>( super::firstChild() ); }
LayerItem *LayerList::lastChild() const { return static_cast<LayerItem*>( super::lastChild() ); }
LayerList *LayerItem::listView() const { return static_cast<LayerList*>( super::listView() ); }
void LayerItem::update() const { listView()->repaintItem( this ); }
LayerItem *LayerItem::firstChild() const { return static_cast<LayerItem*>( super::firstChild() ); }
LayerItem *LayerItem::nextSibling() const { return static_cast<LayerItem*>( super::nextSibling() ); }
LayerItem *LayerItem::parent() const { return static_cast<LayerItem*>( super::parent() ); }
#include "layerlist.moc"
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