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138 lines
3.4 KiB
138 lines
3.4 KiB
// vim: set tabstop=4 shiftwidth=4 noexpandtab:
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/*
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Gwenview - A simple image viewer for KDE
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Copyright 2000-2004 Aurélien Gâteau
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Copyright 2003 Tudor Calin
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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// KDE
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#include <kaction.h>
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#include <klocale.h>
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#include <kpopupmenu.h>
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#include <kdeversion.h>
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#include <kstdaccel.h>
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#include <kstdguiitem.h>
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// Local
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#include "history.moc"
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namespace Gwenview {
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const unsigned int MAX_HISTORY_SIZE=12;
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History::History(KActionCollection* actionCollection) {
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mPosition=mHistoryList.end();
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mMovingInHistory=false;
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// Actions
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QPair<KGuiItem, KGuiItem> backForward = KStdGuiItem::backAndForward();
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mGoBack=new KToolBarPopupAction(backForward.first,
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KStdAccel::shortcut(KStdAccel::Back),
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this, SLOT(goBack()), actionCollection, "go_back");
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mGoForward=new KToolBarPopupAction(backForward.second,
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KStdAccel::shortcut(KStdAccel::Forward),
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this, SLOT(goForward()), actionCollection, "go_forward");
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// Connections
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connect(mGoBack->popupMenu(),SIGNAL(activated(int)),
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this,SLOT(goBackTo(int)) );
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connect(mGoForward->popupMenu(),SIGNAL(activated(int)),
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this,SLOT(goForwardTo(int)) );
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connect(mGoBack->popupMenu(), SIGNAL(aboutToShow()),
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this, SLOT(fillGoBackMenu()) );
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connect(mGoForward->popupMenu(), SIGNAL(aboutToShow()),
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this, SLOT(fillGoForwardMenu()) );
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}
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History::~History() {
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}
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void History::addURLToHistory(const KURL& url2) {
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KURL url( url2 );
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url.setFileName( QString::null );
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if (!mMovingInHistory) {
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if (mPosition!=mHistoryList.end() && url.equals(*mPosition, true)) return;
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// Drop everything after current
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HistoryList::iterator it=mPosition;
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++it;
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mHistoryList.erase(it, mHistoryList.end());
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mHistoryList.append(url);
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if(mHistoryList.count()==MAX_HISTORY_SIZE) mHistoryList.pop_front();
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mPosition=mHistoryList.fromLast();
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}
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mGoBack->setEnabled(mPosition!=mHistoryList.begin());
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mGoForward->setEnabled(mPosition!=mHistoryList.fromLast());
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}
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void History::fillGoBackMenu() {
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QPopupMenu* menu=mGoBack->popupMenu();
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menu->clear();
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HistoryList::ConstIterator it;
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int pos=1;
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for(it=mHistoryList.begin(); it!=mPosition; ++it, ++pos) {
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menu->insertItem( (*it).prettyURL(-1), pos, 0);
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}
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}
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void History::fillGoForwardMenu() {
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QPopupMenu* menu=mGoForward->popupMenu();
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menu->clear();
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HistoryList::ConstIterator it=mPosition;
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++it;
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int pos=1;
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for(; it!=mHistoryList.end(); ++it, ++pos) {
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menu->insertItem( (*it).prettyURL(-1), pos, -1);
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}
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}
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void History::goBack() {
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goBackTo(1);
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}
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void History::goForward() {
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goForwardTo(1);
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}
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void History::goBackTo(int id) {
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for (;id>0; --id) --mPosition;
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mMovingInHistory=true;
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emit urlChanged(*mPosition);
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mMovingInHistory=false;
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}
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void History::goForwardTo(int id) {
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for (;id>0; --id) ++mPosition;
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mMovingInHistory=true;
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emit urlChanged(*mPosition);
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mMovingInHistory=false;
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}
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} // namespace
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