1 /* This file is (c) 2013 Tvangeste <i.4m.l33t@yandex.ru>
2 * Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
3
4 #include <QDebug>
5
6 #include "wordlist.hh"
7
WordList(QWidget * parent)8 WordList::WordList( QWidget * parent ) : QListWidget( parent )
9 , listItemDelegate( itemDelegate() )
10 {
11 wordFinder = 0;
12 translateLine = 0;
13 setItemDelegate( &listItemDelegate );
14 }
15
attachFinder(WordFinder * finder)16 void WordList::attachFinder( WordFinder * finder )
17 {
18 // qDebug() << "Attaching the word finder..." << finder;
19
20 if ( wordFinder == finder )
21 return;
22
23 if ( wordFinder )
24 {
25 disconnect( wordFinder, SIGNAL( updated() ),
26 this, SLOT( prefixMatchUpdated() ) );
27 disconnect( wordFinder, SIGNAL( finished() ),
28 this, SLOT( prefixMatchFinished() ) );
29 }
30
31 wordFinder = finder;
32
33 connect( wordFinder, SIGNAL( updated() ),
34 this, SLOT( prefixMatchUpdated() ) );
35 connect( wordFinder, SIGNAL( finished() ),
36 this, SLOT( prefixMatchFinished() ) );
37 }
38
prefixMatchUpdated()39 void WordList::prefixMatchUpdated()
40 {
41 updateMatchResults( false );
42 }
43
prefixMatchFinished()44 void WordList::prefixMatchFinished()
45 {
46 updateMatchResults( true );
47 }
48
updateMatchResults(bool finished)49 void WordList::updateMatchResults( bool finished )
50 {
51 WordFinder::SearchResults const & results = wordFinder->getResults();
52
53 setUpdatesEnabled( false );
54
55 for( unsigned x = 0; x < results.size(); ++x )
56 {
57 QListWidgetItem * i = item( x );
58
59 if ( !i )
60 {
61 i = new QListWidgetItem( results[ x ].first, this );
62 i->setToolTip( results[ x ].first );
63
64 if ( results[ x ].second )
65 {
66 QFont f = i->font();
67 f.setItalic( true );
68 i->setFont( f );
69 }
70 addItem( i );
71 }
72 else
73 {
74 if ( i->text() != results[ x ].first )
75 {
76 i->setText( results[ x ].first );
77 i->setToolTip( results[ x ].first );
78 }
79
80 QFont f = i->font();
81 if ( f.italic() != results[ x ].second )
82 {
83 f.setItalic( results[ x ].second );
84 i->setFont( f );
85 }
86 }
87
88 i->setTextAlignment(Qt::AlignLeft);
89 }
90
91 while ( count() > (int) results.size() )
92 {
93 // Chop off any extra items that were there
94 QListWidgetItem * i = takeItem( count() - 1 );
95
96 if ( i )
97 delete i;
98 else
99 break;
100 }
101
102 if ( count() )
103 {
104 scrollToItem( item( 0 ), QAbstractItemView::PositionAtTop );
105 setCurrentItem( 0, QItemSelectionModel::Clear );
106 }
107
108 setUpdatesEnabled( true );
109
110 if ( finished )
111 {
112 unsetCursor();
113
114 refreshTranslateLine();
115
116 if ( !wordFinder->getErrorString().isEmpty() )
117 emit statusBarMessage( tr( "WARNING: %1" ).arg( wordFinder->getErrorString() ),
118 20000 , QPixmap( ":/icons/error.png" ) );
119 }
120
121 if( !results.empty() && results.front().first.isRightToLeft() )
122 setLayoutDirection( Qt::RightToLeft );
123 else
124 setLayoutDirection( Qt::LeftToRight );
125
126 emit contentChanged();
127 }
128
refreshTranslateLine()129 void WordList::refreshTranslateLine()
130 {
131 if ( !translateLine )
132 return;
133
134 // Visually mark the input line to mark if there's no results
135 bool setMark = wordFinder->getResults().empty() && !wordFinder->wasSearchUncertain();
136
137 if ( translateLine->property( "noResults" ).toBool() != setMark )
138 {
139 translateLine->setProperty( "noResults", setMark );
140 translateLine->setStyleSheet( translateLine->styleSheet() );
141 }
142
143 }
144
resizeEvent(QResizeEvent * ev)145 void WordList::resizeEvent( QResizeEvent * ev )
146 {
147 // In some rare cases Qt start send QResizeEvent recursively
148 // up to full stack depletion (tested on Qt 4.8.5, 4.8.6).
149 // We use this trick to break such suicidal process.
150
151 for( int x = 0; x < resizedSizes.size(); x++ )
152 if( resizedSizes.at( x ) == ev->size() )
153 return;
154
155 resizedSizes.push_back( ev->size() );
156
157 QListWidget::resizeEvent( ev );
158
159 resizedSizes.pop_back();
160 }
161
