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00019 #include "klistviewsearchline.h"
00020
00021 #include <klistview.h>
00022 #include <kdebug.h>
00023 #include <klocale.h>
00024
00025 #include <qtimer.h>
00026 #include <qpopupmenu.h>
00027
00028 #define KLISTVIEWSEARCHLINE_ALLCOLUMNS_ID 2004
00029
00030 class KListViewSearchLine::KListViewSearchLinePrivate
00031 {
00032 public:
00033 KListViewSearchLinePrivate() :
00034 listView(0),
00035 caseSensitive(false),
00036 activeSearch(false),
00037 keepParentsVisible(true),
00038 queuedSearches(0) {}
00039
00040 KListView *listView;
00041 bool caseSensitive;
00042 bool activeSearch;
00043 bool keepParentsVisible;
00044 QString search;
00045 int queuedSearches;
00046 QValueList<int> searchColumns;
00047 };
00048
00050
00052
00053 KListViewSearchLine::KListViewSearchLine(QWidget *parent, KListView *listView, const char *name) :
00054 KLineEdit(parent, name)
00055 {
00056 d = new KListViewSearchLinePrivate;
00057
00058 d->listView = listView;
00059
00060 connect(this, SIGNAL(textChanged(const QString &)),
00061 this, SLOT(queueSearch(const QString &)));
00062
00063 if(listView) {
00064 connect(listView, SIGNAL(destroyed()),
00065 this, SLOT(listViewDeleted()));
00066
00067 connect(listView, SIGNAL(itemAdded(QListViewItem *)),
00068 this, SLOT(itemAdded(QListViewItem *)));
00069 }
00070 else
00071 setEnabled(false);
00072 }
00073
00074 KListViewSearchLine::KListViewSearchLine(QWidget *parent, const char *name) :
00075 KLineEdit(parent, name)
00076 {
00077 d = new KListViewSearchLinePrivate;
00078
00079 d->listView = 0L;
00080
00081 connect(this, SIGNAL(textChanged(const QString &)),
00082 this, SLOT(queueSearch(const QString &)));
00083
00084 setEnabled(false);
00085 }
00086
00087 KListViewSearchLine::~KListViewSearchLine()
00088 {
00089 delete d;
00090 }
00091
00092 bool KListViewSearchLine::caseSensitive() const
00093 {
00094 return d->caseSensitive;
00095 }
00096
00097 QValueList<int> KListViewSearchLine::searchColumns() const
00098 {
00099 return d->searchColumns;
00100 }
00101
00102 bool KListViewSearchLine::keepParentsVisible() const
00103 {
00104 return d->keepParentsVisible;
00105 }
00106
00107 KListView *KListViewSearchLine::listView() const
00108 {
00109 return d->listView;
00110 }
00111
00113
00115
00116 void KListViewSearchLine::updateSearch(const QString &s)
00117 {
00118 if(!d->listView)
00119 return;
00120
00121 d->search = s.isNull() ? text() : s;
00122
00123
00124
00125
00126 QListViewItem *currentItem = 0;
00127
00128 switch(d->listView->selectionMode())
00129 {
00130 case KListView::NoSelection:
00131 break;
00132 case KListView::Single:
00133 currentItem = d->listView->selectedItem();
00134 break;
00135 default:
00136 {
00137 int flags = QListViewItemIterator::Selected | QListViewItemIterator::Visible;
00138 for(QListViewItemIterator it(d->listView, flags);
00139 it.current() && !currentItem;
00140 ++it)
00141 {
00142 if(d->listView->itemRect(it.current()).isValid())
00143 currentItem = it.current();
00144 }
00145 }
00146 }
00147
00148 if(d->keepParentsVisible)
00149 checkItemParentsVisible(d->listView->firstChild());
00150 else
00151 checkItemParentsNotVisible();
00152
00153 if(currentItem)
00154 d->listView->ensureItemVisible(currentItem);
00155 }
00156
00157 void KListViewSearchLine::setCaseSensitive(bool cs)
00158 {
00159 d->caseSensitive = cs;
00160 }
00161
00162 void KListViewSearchLine::setKeepParentsVisible(bool v)
00163 {
00164 d->keepParentsVisible = v;
00165 }
00166
00167 void KListViewSearchLine::setSearchColumns(const QValueList<int> &columns)
00168 {
00169 d->searchColumns = columns;
00170 }
00171
00172 void KListViewSearchLine::setListView(KListView *lv)
00173 {
00174 if(d->listView) {
00175 disconnect(d->listView, SIGNAL(destroyed()),
00176 this, SLOT(listViewDeleted()));
00177
00178 disconnect(d->listView, SIGNAL(itemAdded(QListViewItem *)),
00179 this, SLOT(itemAdded(QListViewItem *)));
00180 }
00181
00182 d->listView = lv;
00183
00184 if(lv) {
00185 connect(d->listView, SIGNAL(destroyed()),
00186 this, SLOT(listViewDeleted()));
00187
00188 connect(d->listView, SIGNAL(itemAdded(QListViewItem *)),
00189 this, SLOT(itemAdded(QListViewItem *)));
00190 }
00191
00192 setEnabled(bool(lv));
00193 }
00194
00196
00198
00199 bool KListViewSearchLine::itemMatches(const QListViewItem *item, const QString &s) const
00200 {
00201 if(s.isEmpty())
00202 return true;
00203
00204
00205
00206
00207 if(!d->searchColumns.isEmpty()) {
00208 QValueList<int>::ConstIterator it = d->searchColumns.begin();
00209 for(; it != d->searchColumns.end(); ++it) {
00210 if(*it < item->listView()->columns() &&
00211 item->text(*it).find(s, 0, d->caseSensitive) >= 0)
00212 return true;
00213 }
00214 }
00215 else {
00216 for(int i = 0; i < item->listView()->columns(); i++) {
00217 if(item->text(i).find(s, 0, d->caseSensitive) >= 0)
00218 return true;
00219 }
00220 }
00221
00222 return false;
00223 }
00224
00225 QPopupMenu *KListViewSearchLine::createPopupMenu()
00226 {
00227 QPopupMenu *popup = KLineEdit::createPopupMenu();
00228
00229 QPopupMenu *subMenu = new QPopupMenu( popup );
00230 connect( subMenu, SIGNAL( activated(int) ), this, SLOT( searchColumnsMenuActivated(int) ) );
00231
00232 popup->insertSeparator();
00233 popup->insertItem( i18n("Search Columns"), subMenu );
00234
00235 subMenu->insertItem(i18n("All Columns"), KLISTVIEWSEARCHLINE_ALLCOLUMNS_ID);
00236 subMenu->insertSeparator();
00237
00238 bool allColumnsAreSearchColumns = true;
00239 for(int i = 0; i < d->listView->columns(); i++) {
00240 subMenu->insertItem(d->listView->columnText(i), i);
00241 if (d->searchColumns.isEmpty() || d->searchColumns.find(i) != d->searchColumns.end())
00242 subMenu->setItemChecked(i, true);
00243 else
00244 allColumnsAreSearchColumns = false;
00245 }
00246 subMenu->setItemChecked(KLISTVIEWSEARCHLINE_ALLCOLUMNS_ID, allColumnsAreSearchColumns);
00247
00248
00249 if (allColumnsAreSearchColumns && !d->searchColumns.isEmpty())
00250 d->searchColumns.clear();
00251
00252 return popup;
00253 }
00254
00256
00258
00259 void KListViewSearchLine::queueSearch(const QString &search)
00260 {
00261 d->queuedSearches++;
00262 d->search = search;
00263 QTimer::singleShot(200, this, SLOT(activateSearch()));
00264 }
00265
00266 void KListViewSearchLine::activateSearch()
00267 {
00268 d->queuedSearches--;
00269
00270 if(d->queuedSearches == 0)
00271 updateSearch(d->search);
00272 }
00273
00275
00277
00278 void KListViewSearchLine::itemAdded(QListViewItem *item) const
00279 {
00280 item->setVisible(itemMatches(item, text()));
00281 }
00282
00283 void KListViewSearchLine::listViewDeleted()
00284 {
00285 d->listView = 0;
00286 setEnabled(false);
00287 }
00288
00289 void KListViewSearchLine::searchColumnsMenuActivated(int id)
00290 {
00291 if (id==KLISTVIEWSEARCHLINE_ALLCOLUMNS_ID) {
00292 if (d->searchColumns.isEmpty())
00293 d->searchColumns.append(0);
00294 else
00295 d->searchColumns.clear();
00296 }
00297 else {
00298 if (d->searchColumns.find(id) != d->searchColumns.end())
00299 d->searchColumns.remove(id);
00300 else {
00301 if (d->searchColumns.isEmpty())
00302 for(int i = 0; i < d->listView->columns(); i++) {
00303 if (i!=id)
00304 d->searchColumns.append(i);
00305 }
00306 else
00307 d->searchColumns.append(id);
00308 }
00309 }
00310 updateSearch();
00311 }
00312
00314
00316
00317 void KListViewSearchLine::checkItemParentsNotVisible()
00318 {
00319 QListViewItemIterator it(d->listView);
00320 for(; it.current(); ++it)
00321 {
00322 QListViewItem *item = it.current();
00323 if(itemMatches(item, d->search))
00324 item->setVisible(true);
00325 else
00326 item->setVisible(false);
00327 }
00328 }
00329
00330 bool KListViewSearchLine::checkItemParentsVisible(QListViewItem *item)
00331 {
00332 bool visible = false;
00333 for(; item; item = item->nextSibling()) {
00334 if((item->firstChild() && checkItemParentsVisible(item->firstChild())) ||
00335 itemMatches(item, d->search))
00336 {
00337 item->setVisible( true );
00338 visible = true;
00339 }
00340 else
00341 item->setVisible(false);
00342 }
00343 return visible;
00344 }
00345
00346 #include "klistviewsearchline.moc"