author | mickeyl <mickeyl> | 2003-05-01 23:06:29 (UTC) |
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committer | mickeyl <mickeyl> | 2003-05-01 23:06:29 (UTC) |
commit | 49dfb55bd22f5027fcbcbc55648efd4bce6c8fd6 (patch) (side-by-side diff) | |
tree | 503a7fe9fba8e297b15c07398fbf2ee215294f1c /libopie2/opieui | |
parent | 8266da96576ad43a768da37000cef4e8eba000ac (diff) | |
download | opie-49dfb55bd22f5027fcbcbc55648efd4bce6c8fd6.zip opie-49dfb55bd22f5027fcbcbc55648efd4bce6c8fd6.tar.gz opie-49dfb55bd22f5027fcbcbc55648efd4bce6c8fd6.tar.bz2 |
more work on a higher level listview interface
-rw-r--r-- | libopie2/opieui/olistview.cpp | 89 | ||||
-rw-r--r-- | libopie2/opieui/olistview.h | 35 |
2 files changed, 115 insertions, 9 deletions
diff --git a/libopie2/opieui/olistview.cpp b/libopie2/opieui/olistview.cpp index 8f97cc6..8f290d3 100644 --- a/libopie2/opieui/olistview.cpp +++ b/libopie2/opieui/olistview.cpp @@ -468,2 +468,64 @@ void ONamedListView::addColumns( const QStringList& columns ) +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; +} + + /*====================================================================================== @@ -522,11 +584,24 @@ void ONamedListViewItem::setText( const QString& column, const QString& text ) //FIXME: I will optimize later by using a hash map. - for ( int i = 0; i < listView()->columns(); ++i ) - { - if ( listView()->columnText( i ) == column ) - { - OListViewItem::setText( i, text ); - return; + 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 ); } - qWarning( "ONamedListViewItem::setText(): Warning! Columntext '%s' not found.", (const char*) column ); + + +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 99770bf..1bbdd5b 100644 --- a/libopie2/opieui/olistview.h +++ b/libopie2/opieui/olistview.h @@ -243,2 +243,4 @@ QDataStream& operator>>( QDataStream& stream, OListViewItem& item ); +class ONamedListViewItem; + /** @@ -246,3 +248,3 @@ QDataStream& operator>>( QDataStream& stream, OListViewItem& item ); * - * This class provides a higher-level interface to the columns in an OListView. + * This class provides a higher-level interface to an OListView. * @@ -268,2 +270,20 @@ class ONamedListView: public OListView 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; }; @@ -277,3 +297,3 @@ class ONamedListView: public OListView * - * This class provides a higher-level interface to the columns in an OListViewItem. + * This class provides a higher-level interface to an OListViewItem. * @@ -306,2 +326,13 @@ class ONamedListViewItem: public OListViewItem 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; }; |