| -rw-r--r-- | libopie2/opieui/olistview.cpp | 6 | ||||
| -rw-r--r-- | libopie2/opieui/olistview.h | 11 |
2 files changed, 17 insertions, 0 deletions
diff --git a/libopie2/opieui/olistview.cpp b/libopie2/opieui/olistview.cpp index 8f290d3..ec503dd 100644 --- a/libopie2/opieui/olistview.cpp +++ b/libopie2/opieui/olistview.cpp @@ -1,607 +1,613 @@ /* This file is part of the Opie Project =. (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de> .=l. .>+-= _;:, .> :=|. This program is free software; you can .> <`_, > . <= redistribute it and/or modify it under :`=1 )Y*s>-.-- : the terms of the GNU Library General Public .="- .-=="i, .._ License as published by the Free Software - . .-<_> .<> Foundation; either version 2 of the License, ._= =} : or (at your option) any later version. .%`+i> _;_. .i_,=:_. -<s. This program 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. */ /* QT */ #include <qcolor.h> #include <qheader.h> #include <qpainter.h> #include <qpixmap.h> /* OPIE */ #include <opie2/olistview.h> /*====================================================================================== * OListView *======================================================================================*/ OListView::OListView( QWidget *parent, const char *name ) :QListView( parent, name ) { //FIXME: get from global settings and calculate ==> see oglobalsettings.* m_alternateBackground = QColor( 238, 246, 255 ); m_columnSeparator = QPen( QColor( 150, 160, 170 ), 0, DotLine ); m_fullWidth = true; + connect( this, SIGNAL(expanded(QListViewItem*)), SLOT(expand(QListViewItem*))); } OListView::~OListView() { } void OListView::setFullWidth( bool fullWidth ) { m_fullWidth = m_fullWidth; #if QT_VERSION > 290 header()->setStretchEnabled( fullWidth, columns()-1 ); #endif } bool OListView::fullWidth() const { return m_fullWidth; } int OListView::addColumn( const QString& label, int width ) { int result = QListView::addColumn( label, width ); #if QT_VERSION > 290 if (m_fullWidth) { header()->setStretchEnabled( false, columns()-2 ); header()->setStretchEnabled( true, columns()-1 ); } #endif return result; } int OListView::addColumn( const QIconSet& iconset, const QString& label, int width ) { int result = QListView::addColumn( iconset, label, width ); #if QT_VERSION > 290 if (m_fullWidth) { header()->setStretchEnabled( false, columns()-2 ); header()->setStretchEnabled( true, columns()-1 ); } #endif return result; } void OListView::removeColumn( int index ) { QListView::removeColumn(index); #if QT_VERSION > 290 if ( m_fullWidth && index == columns() ) { header()->setStretchEnabled( true, columns()-1 ); } #endif } const QColor& OListView::alternateBackground() const { return m_alternateBackground; } void OListView::setAlternateBackground( const QColor &c ) { m_alternateBackground = c; repaint(); } const QPen& OListView::columnSeparator() const { return m_columnSeparator; } void OListView::setColumnSeparator( const QPen& p ) { m_columnSeparator = p; repaint(); } +void OListView::expand(QListViewItem *item) +{ + ((OListViewItem*)item)->expand(); +} + OListViewItem* OListView::childFactory() { return new OListViewItem( this ); } #ifndef QT_NO_DATASTREAM void OListView::serializeTo( QDataStream& s ) const { #warning Caution... the binary format is still under construction... qDebug( "storing OListView..." ); // store number of columns and the labels s << columns(); for ( int i = 0; i < columns(); ++i ) s << columnText( i ); // calculate the number of top-level items to serialize int items = 0; QListViewItem* item = firstChild(); while ( item ) { item = item->nextSibling(); items++; } // store number of items and the items itself s << items; item = firstChild(); for ( int i = 0; i < items; ++i ) { s << *static_cast<OListViewItem*>( item ); item = item->nextSibling(); } qDebug( "OListview stored." ); } void OListView::serializeFrom( QDataStream& s ) { #warning Caution... the binary format is still under construction... qDebug( "loading OListView..." ); int cols; s >> cols; qDebug( "read number of columns = %d", cols ); while ( columns() < cols ) addColumn( QString::null ); for ( int i = 0; i < cols; ++i ) { QString coltext; s >> coltext; qDebug( "read text '%s' for column %d", (const char*) coltext, i ); setColumnText( i, coltext ); } int items; s >> items; qDebug( "read number of items = %d", items ); for ( int i = 0; i < items; ++i ) { OListViewItem* item = childFactory(); s >> *item; } qDebug( "OListView loaded." ); } QDataStream& operator<<( QDataStream& s, const OListView& lv ) { lv.serializeTo( s ); } QDataStream& operator>>( QDataStream& s, OListView& lv ) { lv.serializeFrom( s ); } #endif // QT_NO_DATASTREAM /*====================================================================================== * OListViewItem *======================================================================================*/ OListViewItem::OListViewItem(QListView *parent) : QListViewItem(parent) { init(); } OListViewItem::OListViewItem(QListViewItem *parent) : QListViewItem(parent) { init(); } OListViewItem::OListViewItem(QListView *parent, QListViewItem *after) : QListViewItem(parent, after) { init(); } OListViewItem::OListViewItem(QListViewItem *parent, QListViewItem *after) : QListViewItem(parent, after) { init(); } OListViewItem::OListViewItem(QListView *parent, QString label1, QString label2, QString label3, QString label4, QString label5, QString label6, QString label7, QString label8) : QListViewItem(parent, label1, label2, label3, label4, label5, label6, label7, label8) { init(); } OListViewItem::OListViewItem(QListViewItem *parent, QString label1, QString label2, QString label3, QString label4, QString label5, QString label6, QString label7, QString label8) : QListViewItem(parent, label1, label2, label3, label4, label5, label6, label7, label8) { init(); } OListViewItem::OListViewItem(QListView *parent, QListViewItem *after, QString label1, QString label2, QString label3, QString label4, QString label5, QString label6, QString label7, QString label8) : QListViewItem(parent, after, label1, label2, label3, label4, label5, label6, label7, label8) { init(); } OListViewItem::OListViewItem(QListViewItem *parent, QListViewItem *after, QString label1, QString label2, QString label3, QString label4, QString label5, QString label6, QString label7, QString label8) : QListViewItem(parent, after, label1, label2, label3, label4, label5, label6, label7, label8) { init(); } OListViewItem::~OListViewItem() { } void OListViewItem::init() { m_known = false; } const QColor &OListViewItem::backgroundColor() { return isAlternate() ? static_cast<OListView*>(listView())->alternateBackground() : listView()->viewport()->colorGroup().base(); } bool OListViewItem::isAlternate() { OListView *lv = static_cast<OListView*>( listView() ); // check if the item above is an OListViewItem OListViewItem *above = static_cast<OListViewItem*>( itemAbove() ); /*if (! itemAbove()->inherits( "OListViewItem" )) return false;*/ // check if we have a valid alternate background color if (!(lv && lv->alternateBackground().isValid())) return false; m_known = above ? above->m_known : true; if (m_known) { m_odd = above ? !above->m_odd : false; } else { OListViewItem *item; bool previous = true; if (parent()) { item = static_cast<OListViewItem *>(parent()); if ( item /*&& item->inherits( "OListViewItem" )*/ ) previous = item->m_odd; item = static_cast<OListViewItem *>(parent()->firstChild()); /* if ( !item.inherits( "OListViewItem" ) item = 0; */ } else { item = static_cast<OListViewItem *>(lv->firstChild()); } while(item) { item->m_odd = previous = !previous; item->m_known = true; item = static_cast<OListViewItem *>(item->nextSibling()); /* if (!item.inherits( "OListViewItem" ) ) break; */ } } return m_odd; } void OListViewItem::paintCell(QPainter *p, const QColorGroup &cg, int column, int width, int alignment) { QColorGroup _cg = cg; const QPixmap *pm = listView()->viewport()->backgroundPixmap(); if (pm && !pm->isNull()) { _cg.setBrush( QColorGroup::Base, QBrush(backgroundColor(), *pm) ); p->setBrushOrigin( -listView()->contentsX(), -listView()->contentsY() ); } else if ( isAlternate() ) { _cg.setColor( QColorGroup::Base, static_cast<OListView*>( listView() )->alternateBackground() ); } QListViewItem::paintCell( p, _cg, column, width, alignment ); //FIXME: Use styling here! const QPen& pen = static_cast<OListView*>( listView() )->columnSeparator(); p->setPen( pen ); p->drawLine( width-1, 0, width-1, height() ); } OListViewItem* OListViewItem::childFactory() { return new OListViewItem( this ); } #ifndef QT_NO_DATASTREAM void OListViewItem::serializeTo( QDataStream& s ) const { #warning Caution... the binary format is still under construction... qDebug( "storing OListViewItem..." ); // store item text for ( int i = 0; i < listView()->columns(); ++i ) { s << text( i ); } // calculate the number of children to serialize int items = 0; QListViewItem* item = firstChild(); while ( item ) { item = item->nextSibling(); items++; } // store number of items and the items itself s << items; item = firstChild(); for ( int i = 0; i < items; ++i ) { s << *static_cast<OListViewItem*>( item ); item = item->nextSibling(); } qDebug( "OListviewItem stored." ); } void OListViewItem::serializeFrom( QDataStream& s ) { #warning Caution... the binary format is still under construction... qDebug( "loading OListViewItem..." ); for ( int i = 0; i < listView()->columns(); ++i ) { QString coltext; s >> coltext; qDebug( "read text '%s' for column %d", (const char*) coltext, i ); setText( i, coltext ); } int items; s >> items; qDebug( "read number of items = %d", items ); for ( int i = 0; i < items; ++i ) { OListViewItem* item = childFactory(); s >> (*item); } qDebug( "OListViewItem loaded." ); } QDataStream& operator<<( QDataStream& s, const OListViewItem& lvi ) { lvi.serializeTo( s ); } QDataStream& operator>>( QDataStream& s, OListViewItem& lvi ) { lvi.serializeFrom( s ); } #endif // QT_NO_DATASTREAM /*====================================================================================== * ONamedListView *======================================================================================*/ ONamedListView::ONamedListView( QWidget *parent, const char *name ) :OListView( parent, name ) { } ONamedListView::~ONamedListView() { } void ONamedListView::addColumns( const QStringList& columns ) { for ( QStringList::ConstIterator it = columns.begin(); it != columns.end(); ++it ) { qDebug( "adding column %s", (const char*) *it ); addColumn( *it ); } } int ONamedListView::findColumn( const QString& text ) const { //FIXME: If used excessively, this will slow down performance of updates //FIXME: because of the linear search over all column texts. //FIXME: I will optimize later by using a hash map. for ( int i = 0; i < columns(); ++i ) if ( columnText( i ) == text ) return i; return -1; } ONamedListViewItem* ONamedListView::find( int column, const QString& text, int recurse ) const { return find( (ONamedListViewItem*) firstChild(), column, text, recurse ); } ONamedListViewItem* ONamedListView::find( ONamedListViewItem* item, int column, const QString& text, int recurse ) const { ONamedListViewItem* result; while ( item && item->text( column ) != text ) { qDebug( "checked %s", (const char*) item->text( column ) ); if ( recurse < 0 || recurse > 0 ) { qDebug( "recursion is %d - recursing into...", recurse ); result = find( (ONamedListViewItem*) item->firstChild(), column, text, recurse-1 ); if ( result ) return result; } item = (ONamedListViewItem*) item->itemBelow(); } if ( item && item->text( column ) == text ) return item; else return 0; } ONamedListViewItem* ONamedListView::find( const QString& column, const QString& text, int recurse ) const { int col = findColumn( column ); if ( col != -1 ) return find( (ONamedListViewItem*) firstChild(), col, text, recurse ); else return 0; } ONamedListViewItem* ONamedListView::find( ONamedListViewItem* item, const QString& column, const QString& text, int recurse ) const { int col = findColumn( column ); if ( col != -1 ) return find( item, col, text, recurse ); else return 0; } /*====================================================================================== * ONamedListViewItem *======================================================================================*/ ONamedListViewItem::ONamedListViewItem( QListView* parent, const QStringList& texts ) :OListViewItem( parent ) { setText( texts ); } ONamedListViewItem::ONamedListViewItem( QListViewItem* parent, const QStringList& texts ) :OListViewItem( parent ) { setText( texts ); } ONamedListViewItem::ONamedListViewItem( QListView* parent, QListViewItem* after, const QStringList& texts ) :OListViewItem( parent, after ) { setText( texts ); } ONamedListViewItem::ONamedListViewItem( QListViewItem* parent, QListViewItem* after, const QStringList& texts ) :OListViewItem( parent, after ) { setText( texts ); } ONamedListViewItem::~ONamedListViewItem() { } void ONamedListViewItem::setText( const QStringList& texts ) { int col = 0; for ( QStringList::ConstIterator it = texts.begin(); it != texts.end(); ++it ) { qDebug( "setting column %d = text %s", col, (const char*) *it ); OListViewItem::setText( col++, *it ); } } void ONamedListViewItem::setText( const QString& column, const QString& text ) { //FIXME: If used excessively, this will slow down performance of updates //FIXME: because of the linear search over all column texts. //FIXME: I will optimize later by using a hash map. int col = ( (ONamedListView*) listView() )->findColumn( column ); if ( col != -1 ) OListViewItem::setText( col, text ); else qWarning( "ONamedListViewItem::setText(): Warning! Columntext '%s' not found.", (const char*) column ); } ONamedListViewItem* ONamedListViewItem::find( int column, const QString& text, int recurse ) const { return ( (ONamedListView*) listView() )->find( (ONamedListViewItem*) firstChild(), column, text, recurse ); } ONamedListViewItem* ONamedListViewItem::find( const QString& column, const QString& text, int recurse ) const { int col = ( (ONamedListView*) listView() )->findColumn( column ); if ( col != -1 ) return ( (ONamedListView*) listView() )->find( (ONamedListViewItem*) firstChild(), col, text, recurse ); else return 0; } diff --git a/libopie2/opieui/olistview.h b/libopie2/opieui/olistview.h index 109e309..a00b43a 100644 --- a/libopie2/opieui/olistview.h +++ b/libopie2/opieui/olistview.h @@ -1,343 +1,354 @@ /* This file is part of the Opie Project =. (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de> .=l. .>+-= _;:, .> :=|. This program is free software; you can .> <`_, > . <= redistribute it and/or modify it under :`=1 )Y*s>-.-- : the terms of the GNU Library General Public .="- .-=="i, .._ License as published by the Free Software - . .-<_> .<> Foundation; either version 2 of the License, ._= =} : or (at your option) any later version. .%`+i> _;_. .i_,=:_. -<s. This program 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. */ #ifndef OLISTVIEW_H #define OLISTVIEW_H #include <qcolor.h> #include <qlistview.h> #include <qpen.h> #include <qdatastream.h> #include <qstringlist.h> class OListViewItem; /*====================================================================================== * OListView *======================================================================================*/ /** * @brief A list/tree widget. * * A @ref QListView variant featuring visual and functional enhancements * like an alternate background for odd rows, an autostretch mode * for the width of the widget ( >= Qt 3 only ) and persistence capabilities. * * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de> */ class OListView: public QListView { public: /** * Constructor. * * The parameters @a parent and @a name are handled by * @ref QListView, as usual. */ OListView( QWidget* parent = 0, const char* name = 0 ); /** * Destructor. */ virtual ~OListView(); /** * Let the last column fit exactly all the available width. */ void setFullWidth( bool fullWidth ); /** * Returns whether the last column is set to fit the available width. */ bool fullWidth() const; /** * Reimplemented for full width support */ virtual int addColumn( const QString& label, int width = -1 ); /** * Reimplemented for full width support */ virtual int addColumn( const QIconSet& iconset, const QString& label, int width = -1 ); /** * Reimplemented for full width support */ virtual void removeColumn(int index); /** * Set the alternate background background @a color. * Set to an invalid color to disable alternate colors. * This only has an effect if the items are OListViewItems */ void setAlternateBackground( const QColor& color ); /** * Sets the column separator @a pen. */ void setColumnSeparator( const QPen& pen ); /** * @returns the alternate background color */ const QColor& alternateBackground() const; /** * @return the column separator pen */ const QPen& columnSeparator() const; /** * Create a list view item as child of this object * @returns the new object */ virtual OListViewItem* childFactory(); #ifndef QT_NO_DATASTREAM /** * Serialize this object to @ref QDataStream @a stream */ virtual void serializeTo( QDataStream& stream ) const; /** * Serialize this object from a @ref QDataStream @a stream */ virtual void serializeFrom( QDataStream& s ); #endif +protected slots: + /** + * expand the current OListViewItem + */ + void expand(QListViewItem*); + private: QColor m_alternateBackground; bool m_fullWidth; QPen m_columnSeparator; }; #ifndef QT_NO_DATASTREAM /** * @relates OListView * Writes @a listview to the @a stream and returns a reference to the stream. */ QDataStream& operator<<( QDataStream& stream, const OListView& listview ); /** * @relates OListView * Reads @a listview from the @a stream and returns a reference to the stream. */ QDataStream& operator>>( QDataStream& stream, OListView& listview ); #endif // QT_NO_DATASTREAM /*====================================================================================== * OListViewItem *======================================================================================*/ class OListViewItem: public QListViewItem { public: /** * Constructors. */ OListViewItem( QListView * parent ); OListViewItem( QListViewItem * parent ); OListViewItem( QListView * parent, QListViewItem * after ); OListViewItem( QListViewItem * parent, QListViewItem * after ); OListViewItem( QListView * parent, QString, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null ); OListViewItem( QListViewItem * parent, QString, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null ); OListViewItem( QListView * parent, QListViewItem * after, QString, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null ); OListViewItem( QListViewItem * parent, QListViewItem * after, QString, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null, QString = QString::null ); /** * Destructor. */ virtual ~OListViewItem(); /** * @returns the background color of the list item. */ const QColor& backgroundColor(); /** * @returns true, if the item is at an odd position and * thus have to be painted with the alternate background color. */ bool isAlternate(); /** * @note: Reimplemented for internal purposes - the API is not affected * */ void paintCell( QPainter *p, const QColorGroup &cg, int column, int width, int alignment ); /** * Perform object initialization. */ void init(); /** * create a list view item as child of this object * @returns the new object */ virtual OListViewItem* childFactory(); #ifndef QT_NO_DATASTREAM /** * serialize this object to or from a @ref QDataStream * @param s the stream used to serialize this object. */ virtual void serializeTo( QDataStream& s ) const; /** * serialize this object to or from a @ref QDataStream * @param s the stream used to serialize this object. */ virtual void serializeFrom( QDataStream& s ); #endif + /** + * expand the the item + */ + virtual void expand(){}; + private: bool m_known; bool m_odd; }; #ifndef QT_NO_DATASTREAM /** * @relates QListViewItem * Writes listview @a item and all subitems recursively to @a stream * and returns a reference to the stream. */ QDataStream& operator<<( QDataStream& stream, const OListViewItem& item ); /** * @relates QListViewItem * Reads listview @a item from @a stream and returns a reference to the stream. */ QDataStream& operator>>( QDataStream& stream, OListViewItem& item ); #endif // QT_NO_DATASTREAM /*====================================================================================== * ONamedListView *======================================================================================*/ class ONamedListViewItem; /** * @brief An OListView variant with named columns. * * This class provides a higher-level interface to an OListView. * * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de> */ class ONamedListView: public OListView { public: /** * Constructor. * * The parameters @a parent and @a name are handled by * @ref OListView, as usual. */ ONamedListView( QWidget* parent = 0, const char* name = 0 ); /** * Destructor. */ virtual ~ONamedListView(); /** * Add a number of @a columns to the listview. */ virtual void addColumns( const QStringList& columns ); /** * @returns the column index matching to @a text or -1 if not found. */ virtual int findColumn( const QString& text ) const; /** * @returns the first item which has a @a text in column @a column. * Set @a recurse to indicate how much subchild levels to search, e.g.<ul> * <li>set it to 0 to search only among direct childs, * <li>set it to 1 to search direct childs and all 1st order subchilds * <li>set it to -1 for maximum recursion. * </ul> * @sa ONamedListViewItem::find() */ virtual ONamedListViewItem* find( ONamedListViewItem* start, int column, const QString& text, int recurse = -1 ) const; virtual ONamedListViewItem* find( int column, const QString& text, int recurse = -1 ) const; virtual ONamedListViewItem* find( ONamedListViewItem* start, const QString& column, const QString& text, int recurse = -1 ) const; virtual ONamedListViewItem* find( const QString& column, const QString& text, int recurse = -1 ) const; }; /*====================================================================================== * ONamedListViewItem *======================================================================================*/ /** * @brief An OListView variant with named columns. * * This class provides a higher-level interface to an OListViewItem. * * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de> */ class ONamedListViewItem: public OListViewItem { public: /** * Constructor. Accepts the same parameters as a @ref OListViewItem, * plus a @ref QStringList which holds an arbitrary number of @a texts. */ ONamedListViewItem( QListView* parent, const QStringList& texts ); ONamedListViewItem( QListViewItem* parent, const QStringList& texts ); ONamedListViewItem( QListView* parent, QListViewItem* after, const QStringList& texts ); ONamedListViewItem( QListViewItem* parent, QListViewItem* after, const QStringList& texts ); /** * Destructor. */ virtual ~ONamedListViewItem(); /** * Sets the text in column @a column to @a text. * This method differs from @ref QListViewItem::setText() in that it * accepts a string as column indicator instead of an int. */ virtual void setText( const QString& column, const QString& text ); /** * Sets a number of @a texts for this item. */ virtual void setText( const QStringList& texts ); /** * @returns the first child which has a @a text in column @a column. * Set @a recurse to indicate how much subchild levels to search, e.g.<ul> * <li>set it to 0 to search only among direct childs, * <li>set it to 1 to search direct childs and all 1st order subchilds * <li>set it to -1 for maximum recursion. * </ul> * @sa ONamedListView::find() */ virtual ONamedListViewItem* find( int column, const QString& text, int recurse = -1 ) const; virtual ONamedListViewItem* find( const QString& column, const QString& text, int recurse = -1 ) const; }; #endif // OLISTVIEW_H |