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508 lines
16 KiB
508 lines
16 KiB
/* This file is part of the KDE libraries
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Copyright (c) 2003 Scott Wheeler <wheeler@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "klistviewsearchline.h"
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#include <klistview.h>
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#include <kiconloader.h>
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#include <ktoolbar.h>
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#include <ktoolbarbutton.h>
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#include <kdebug.h>
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#include <klocale.h>
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#include <tqapplication.h>
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#include <tqtimer.h>
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#include <tqpopupmenu.h>
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#include <tqlabel.h>
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#include <tqheader.h>
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#define KLISTVIEWSEARCHLINE_ALLVISIBLECOLUMNS_ID 2004
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class TDEListViewSearchLine::TDEListViewSearchLinePrivate
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{
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public:
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TDEListViewSearchLinePrivate() :
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listView(0),
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caseSensitive(false),
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activeSearch(false),
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keepParentsVisible(true),
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queuedSearches(0) {}
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TDEListView *listView;
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bool caseSensitive;
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bool activeSearch;
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bool keepParentsVisible;
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TQString search;
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int queuedSearches;
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TQValueList<int> searchColumns;
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};
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////////////////////////////////////////////////////////////////////////////////
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// public methods
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////////////////////////////////////////////////////////////////////////////////
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TDEListViewSearchLine::TDEListViewSearchLine(TQWidget *parent, TDEListView *listView, const char *name) :
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KLineEdit(parent, name)
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{
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d = new TDEListViewSearchLinePrivate;
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d->listView = listView;
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connect(this, TQT_SIGNAL(textChanged(const TQString &)),
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this, TQT_SLOT(queueSearch(const TQString &)));
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if(listView) {
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connect(listView, TQT_SIGNAL(destroyed()),
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this, TQT_SLOT(listViewDeleted()));
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#if KDE_IS_VERSION(3,3,0)
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connect(listView, TQT_SIGNAL(itemAdded(TQListViewItem *)),
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this, TQT_SLOT(itemAdded(TQListViewItem *)));
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#endif
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}
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else
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setEnabled(false);
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}
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TDEListViewSearchLine::TDEListViewSearchLine(TQWidget *parent, const char *name) :
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KLineEdit(parent, name)
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{
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d = new TDEListViewSearchLinePrivate;
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d->listView = 0;
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connect(this, TQT_SIGNAL(textChanged(const TQString &)),
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this, TQT_SLOT(queueSearch(const TQString &)));
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setEnabled(false);
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}
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TDEListViewSearchLine::~TDEListViewSearchLine()
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{
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delete d;
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}
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bool TDEListViewSearchLine::caseSensitive() const
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{
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return d->caseSensitive;
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}
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TQValueList<int> TDEListViewSearchLine::searchColumns() const
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{
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return d->searchColumns;
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}
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bool TDEListViewSearchLine::keepParentsVisible() const
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{
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return d->keepParentsVisible;
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}
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TDEListView *TDEListViewSearchLine::listView() const
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{
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return d->listView;
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}
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////////////////////////////////////////////////////////////////////////////////
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// public slots
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////////////////////////////////////////////////////////////////////////////////
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void TDEListViewSearchLine::updateSearch(const TQString &s)
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{
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if(!d->listView)
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return;
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d->search = s.isNull() ? text() : s;
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// If there's a selected item that is visible, make sure that it's visible
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// when the search changes too (assuming that it still matches).
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TQListViewItem *currentItem = 0;
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switch(d->listView->selectionMode())
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{
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case TDEListView::NoSelection:
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break;
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case TDEListView::Single:
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currentItem = d->listView->selectedItem();
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break;
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default:
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{
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int flags = TQListViewItemIterator::Selected | TQListViewItemIterator::Visible;
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for(TQListViewItemIterator it(d->listView, flags);
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it.current() && !currentItem;
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++it)
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{
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if(d->listView->itemRect(it.current()).isValid())
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currentItem = it.current();
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}
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}
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}
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if(d->keepParentsVisible)
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checkItemParentsVisible(d->listView->firstChild());
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else
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checkItemParentsNotVisible();
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if(currentItem)
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d->listView->ensureItemVisible(currentItem);
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}
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void TDEListViewSearchLine::setCaseSensitive(bool cs)
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{
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d->caseSensitive = cs;
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}
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void TDEListViewSearchLine::setKeepParentsVisible(bool v)
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{
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d->keepParentsVisible = v;
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}
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void TDEListViewSearchLine::setSearchColumns(const TQValueList<int> &columns)
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{
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d->searchColumns = columns;
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}
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void TDEListViewSearchLine::setListView(TDEListView *lv)
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{
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if(d->listView) {
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disconnect(d->listView, TQT_SIGNAL(destroyed()),
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this, TQT_SLOT(listViewDeleted()));
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#if KDE_IS_VERSION(3,3,0)
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disconnect(d->listView, TQT_SIGNAL(itemAdded(TQListViewItem *)),
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this, TQT_SLOT(itemAdded(TQListViewItem *)));
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#endif
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}
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d->listView = lv;
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if(lv) {
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connect(d->listView, TQT_SIGNAL(destroyed()),
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this, TQT_SLOT(listViewDeleted()));
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#if KDE_IS_VERSION(3,3,0)
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connect(d->listView, TQT_SIGNAL(itemAdded(TQListViewItem *)),
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this, TQT_SLOT(itemAdded(TQListViewItem *)));
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#endif
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}
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setEnabled(bool(lv));
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}
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////////////////////////////////////////////////////////////////////////////////
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// protected members
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////////////////////////////////////////////////////////////////////////////////
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bool TDEListViewSearchLine::itemMatches(const TQListViewItem *item, const TQString &s) const
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{
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if(s.isEmpty())
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return true;
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// If the search column list is populated, search just the columns
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// specifified. If it is empty default to searching all of the columns.
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if(!d->searchColumns.isEmpty()) {
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TQValueList<int>::ConstIterator it = d->searchColumns.begin();
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for(; it != d->searchColumns.end(); ++it) {
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if(*it < item->listView()->columns() &&
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item->text(*it).find(s, 0, d->caseSensitive) >= 0)
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return true;
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}
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}
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else {
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for(int i = 0; i < item->listView()->columns(); i++) {
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if(item->listView()->columnWidth(i) > 0 &&
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item->text(i).find(s, 0, d->caseSensitive) >= 0)
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{
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return true;
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}
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}
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}
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return false;
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}
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TQPopupMenu *TDEListViewSearchLine::createPopupMenu()
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{
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TQPopupMenu *popup = KLineEdit::createPopupMenu();
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if (d->listView->columns()>1) {
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TQPopupMenu *subMenu = new TQPopupMenu(popup);
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connect(subMenu, TQT_SIGNAL(activated(int)), this, TQT_SLOT(searchColumnsMenuActivated(int)));
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popup->insertSeparator();
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popup->insertItem(i18n("Search Columns"), subMenu);
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subMenu->insertItem(i18n("All Visible Columns"), KLISTVIEWSEARCHLINE_ALLVISIBLECOLUMNS_ID);
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subMenu->insertSeparator();
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bool allColumnsAreSearchColumns = true;
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// TODO Make the entry order match the actual column order
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TQHeader* const header = d->listView->header();
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int visibleColumns = 0;
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for(int i = 0; i < d->listView->columns(); i++) {
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if(d->listView->columnWidth(i)>0) {
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TQString columnText = d->listView->columnText(i);
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if(columnText.isEmpty()) {
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int visiblePosition=1;
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for(int j = 0; j < header->mapToIndex(i); j++)
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if(d->listView->columnWidth(header->mapToSection(j))>0)
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visiblePosition++;
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columnText = i18n("Column number %1","Column No. %1").arg(visiblePosition);
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}
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subMenu->insertItem(columnText, visibleColumns);
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if(d->searchColumns.isEmpty() || d->searchColumns.find(i) != d->searchColumns.end())
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subMenu->setItemChecked(visibleColumns, true);
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else
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allColumnsAreSearchColumns = false;
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visibleColumns++;
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}
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}
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subMenu->setItemChecked(KLISTVIEWSEARCHLINE_ALLVISIBLECOLUMNS_ID, allColumnsAreSearchColumns);
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// searchColumnsMenuActivated() relies on one possible "all" representation
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if(allColumnsAreSearchColumns && !d->searchColumns.isEmpty())
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d->searchColumns.clear();
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}
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return popup;
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}
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////////////////////////////////////////////////////////////////////////////////
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// protected slots
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////////////////////////////////////////////////////////////////////////////////
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void TDEListViewSearchLine::queueSearch(const TQString &search)
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{
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d->queuedSearches++;
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d->search = search;
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TQTimer::singleShot(200, this, TQT_SLOT(activateSearch()));
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}
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void TDEListViewSearchLine::activateSearch()
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{
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--(d->queuedSearches);
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if(d->queuedSearches == 0)
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updateSearch(d->search);
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}
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////////////////////////////////////////////////////////////////////////////////
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// private slots
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////////////////////////////////////////////////////////////////////////////////
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void TDEListViewSearchLine::itemAdded(TQListViewItem *item) const
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{
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item->setVisible(itemMatches(item, text()));
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}
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void TDEListViewSearchLine::listViewDeleted()
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{
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d->listView = 0;
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setEnabled(false);
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}
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void TDEListViewSearchLine::searchColumnsMenuActivated(int id)
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{
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if(id == KLISTVIEWSEARCHLINE_ALLVISIBLECOLUMNS_ID) {
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if(d->searchColumns.isEmpty())
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d->searchColumns.append(0);
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else
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d->searchColumns.clear();
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}
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else {
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if(d->searchColumns.find(id) != d->searchColumns.end())
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d->searchColumns.remove(id);
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else {
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if(d->searchColumns.isEmpty()) {
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for(int i = 0; i < d->listView->columns(); i++) {
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if(i != id)
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d->searchColumns.append(i);
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}
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}
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else
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d->searchColumns.append(id);
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}
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}
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updateSearch();
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}
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////////////////////////////////////////////////////////////////////////////////
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// private methods
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////////////////////////////////////////////////////////////////////////////////
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void TDEListViewSearchLine::checkItemParentsNotVisible()
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{
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TQListViewItemIterator it(d->listView);
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for(; it.current(); ++it)
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{
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TQListViewItem *item = it.current();
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if(itemMatches(item, d->search))
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item->setVisible(true);
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else
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item->setVisible(false);
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}
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}
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#include <kdebug.h>
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/** Check whether \p item, its siblings and their descendents should be shown. Show or hide the items as necessary.
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*
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* \p item The list view item to start showing / hiding items at. Typically, this is the first child of another item, or the
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* the first child of the list view.
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* \p highestHiddenParent The highest (closest to root) ancestor of \p item which is hidden. If 0, all parents of
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* \p item must be visible.
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* \return \c true if an item which should be visible is found, \c false if all items found should be hidden. If this function
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* returns true and \p highestHiddenParent was not 0, highestHiddenParent will have been shown.
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*/
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bool TDEListViewSearchLine::checkItemParentsVisible(TQListViewItem *item, TQListViewItem *highestHiddenParent)
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{
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bool visible = false;
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TQListViewItem * first = item;
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for(; item; item = item->nextSibling())
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{
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//What we pass to our children as highestHiddenParent:
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TQListViewItem * hhp = highestHiddenParent ? highestHiddenParent : item->isVisible() ? 0L : item;
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bool childMatch = false;
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if(item->firstChild() && checkItemParentsVisible(item->firstChild(), hhp))
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childMatch = true;
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// Should this item be shown? It should if any children should be, or if it matches.
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if(childMatch || itemMatches(item, d->search))
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{
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visible = true;
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if (highestHiddenParent)
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{
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highestHiddenParent->setVisible(true);
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// Calling setVisible on our ancestor will unhide all its descendents. Hide the ones
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// before us that should not be shown.
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for(TQListViewItem *hide = first; hide != item; hide = hide->nextSibling())
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hide->setVisible(false);
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highestHiddenParent = 0;
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// If we matched, than none of our children matched, yet the setVisible() call on our
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// ancestor unhid them, undo the damage:
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if(!childMatch)
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for(TQListViewItem *hide = item->firstChild(); hide; hide = hide->nextSibling())
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hide->setVisible(false);
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}
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else
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item->setVisible(true);
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}
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else
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item->setVisible(false);
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}
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return visible;
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}
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////////////////////////////////////////////////////////////////////////////////
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// TDEListViewSearchLineWidget
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////////////////////////////////////////////////////////////////////////////////
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class TDEListViewSearchLineWidget::TDEListViewSearchLineWidgetPrivate
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{
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public:
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TDEListViewSearchLineWidgetPrivate() : listView(0), searchLine(0), clearButton(0) {}
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TDEListView *listView;
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TDEListViewSearchLine *searchLine;
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TQToolButton *clearButton;
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};
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TDEListViewSearchLineWidget::TDEListViewSearchLineWidget(TDEListView *listView,
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TQWidget *parent,
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const char *name) :
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TQHBox(parent, name)
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{
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d = new TDEListViewSearchLineWidgetPrivate;
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d->listView = listView;
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setSpacing(5);
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TQTimer::singleShot(0, this, TQT_SLOT(createWidgets()));
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}
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TDEListViewSearchLineWidget::~TDEListViewSearchLineWidget()
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{
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delete d;
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}
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TDEListViewSearchLine *TDEListViewSearchLineWidget::createSearchLine(TDEListView *listView)
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{
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if(!d->searchLine)
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d->searchLine = new TDEListViewSearchLine(this, listView);
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return d->searchLine;
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}
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void TDEListViewSearchLineWidget::createWidgets()
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{
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positionInToolBar();
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if(!d->clearButton) {
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d->clearButton = new TQToolButton(this);
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TQIconSet icon = SmallIconSet(TQApplication::reverseLayout() ? "clear_left" : "locationbar_erase");
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d->clearButton->setIconSet(icon);
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}
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d->clearButton->show();
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TQLabel *label = new TQLabel(i18n("S&earch:"), this, "kde toolbar widget");
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d->searchLine = createSearchLine(d->listView);
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d->searchLine->show();
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label->setBuddy(d->searchLine);
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label->show();
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connect(d->clearButton, TQT_SIGNAL(clicked()), d->searchLine, TQT_SLOT(clear()));
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}
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TDEListViewSearchLine *TDEListViewSearchLineWidget::searchLine() const
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{
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return d->searchLine;
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}
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void TDEListViewSearchLineWidget::positionInToolBar()
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{
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TDEToolBar *toolBar = dynamic_cast<TDEToolBar *>(parent());
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if(toolBar) {
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// Here we have The Big Ugly. Figure out how many widgets are in the
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// and do a hack-ish iteration over them to find this widget so that we
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// can insert the clear button before it.
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int widgetCount = toolBar->count();
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for(int index = 0; index < widgetCount; index++) {
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int id = toolBar->idAt(index);
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if(toolBar->getWidget(id) == this) {
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toolBar->setItemAutoSized(id);
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if(!d->clearButton) {
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TQString icon = TQApplication::reverseLayout() ? "clear_left" : "locationbar_erase";
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d->clearButton = new TDEToolBarButton(icon, 2005, toolBar);
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}
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toolBar->insertWidget(2005, d->clearButton->width(), d->clearButton, index);
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break;
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}
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}
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}
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if(d->searchLine)
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d->searchLine->show();
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}
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#include "klistviewsearchline.moc"
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