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tdeaddons/konq-plugins/sidebar/newsticker/nsstacktabwidget.cpp

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// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8; -*-
/***************************************************************************
nsstacktabwidget.cpp - description
-------------------
begin : Sat 07.09.2002
copyright : (C) 2002-2004 Marcus Camen
email : mcamen@mcamen.de
***************************************************************************/
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <qpushbutton.h>
#include <qlayout.h>
#include <qscrollview.h>
#include <qptrdict.h>
#include <qsizepolicy.h>
#include <qtooltip.h>
#include <qcursor.h>
#include <qimage.h>
#include <kdebug.h>
#include <kaboutdata.h>
#include <kaboutapplication.h>
#include <kpopupmenu.h>
#include <kiconloader.h>
#include <kstringhandler.h>
#include <kapplication.h>
#include <kbugreport.h>
#include <kstdguiitem.h>
#include <kconfigdialog.h>
#include "sidebarsettings.h"
#include "configfeeds.h"
#include "nsstacktabwidget.h"
namespace KSB_News {
NSStackTabWidget::NSStackTabWidget(QWidget *parent, const char *name,
QPixmap appIcon) : QWidget(parent, name) {
currentPage = 0;
layout = new QVBoxLayout(this);
pagesheader.setAutoDelete(TRUE);
pages.setAutoDelete(TRUE);
// about dialog
m_aboutdata = new KAboutData("konq_sidebarnews",
I18N_NOOP("Newsticker"),
KDE::versionString(),
I18N_NOOP("RSS Feed Viewer"),
KAboutData::License_LGPL,
I18N_NOOP("(c) 2002-2004, the Sidebar Newsticker developers"));
m_aboutdata->addAuthor("Marcus Camen", I18N_NOOP("Maintainer"),
"mcamen@mcamen.de");
m_aboutdata->addAuthor("Frerich Raabe", "librss",
"raabe@kde.org");
m_aboutdata->addAuthor("Ian Reinhart Geiser", "dcoprss",
"geiseri@kde.org");
m_aboutdata->addAuthor("Joseph Wenninger",
I18N_NOOP("Idea and former maintainer"),
"jowenn@kde.org");
m_aboutdata->setProductName("konqueror/sidebar newsticker");
m_about = new KAboutApplication(m_aboutdata, this);
// bugreport dialog
m_bugreport = new KBugReport(0, true, m_aboutdata);
// popup menu
popup = new KPopupMenu(this);
popup->insertItem(KStdGuiItem::configure().iconSet(),
i18n("&Configure Newsticker..."), this,
SLOT(slotConfigure()));
popup->insertItem(SmallIconSet("reload"), i18n("&Reload"), this,
SLOT(slotRefresh()));
popup->insertItem(KStdGuiItem::close().iconSet(),
KStdGuiItem::close().text(), this, SLOT(slotClose()));
popup->insertSeparator();
// help menu
helpmenu = new KPopupMenu(this);
helpmenu->insertItem(appIcon, i18n("&About Newsticker"), this,
SLOT(slotShowAbout()));
helpmenu->insertItem(i18n("&Report Bug..."), this,
SLOT(slotShowBugreport()));
popup->insertItem(KStdGuiItem::help().iconSet(),
KStdGuiItem::help().text(), helpmenu);
// read configuration from disk and initialize widget
m_our_rsssources = SidebarSettings::sources();
}
void NSStackTabWidget::addStackTab(NSPanel *nsp, QWidget *page) {
QPushButton *button = new QPushButton(this);
button->setText(KStringHandler::rPixelSqueeze(nsp->title(),
button->fontMetrics(),
button->width() - 4 ));
button->setSizePolicy(QSizePolicy(QSizePolicy::Preferred,
QSizePolicy::Preferred));
connect(button, SIGNAL(clicked()), this, SLOT(buttonClicked()));
QToolTip::add(button, nsp->title());
// eventFiler for the title button
button->installEventFilter(this);
QScrollView *sv = new QScrollView(this);
sv->setResizePolicy(QScrollView::AutoOneFit);
sv->addChild(page);
sv->setFrameStyle(QFrame::NoFrame);
page->show();
pagesheader.insert(nsp, button);
pages.insert(nsp, sv);
layout->addWidget(button);
layout->addWidget(sv);
button->show();
if (pages.count() == 1) {
currentPage = sv;
sv->show();
} else {
sv->hide();
}
}
void NSStackTabWidget::delStackTab(NSPanel *nsp) {
pages.remove(nsp);
pagesheader.remove(nsp);
if (pages.count() >= 1) {
QPtrDictIterator<QWidget> it(pages);
QWidget *previousPage = currentPage;
currentPage = it.current();
if (currentPage != previousPage)
currentPage->show();
}
}
void NSStackTabWidget::updateTitle(NSPanel *nsp) {
QPushButton *pb = (QPushButton *)pagesheader.find(nsp);
if (! pb->pixmap())
pb->setText(nsp->title());
}
void NSStackTabWidget::updatePixmap(NSPanel *nsp) {
QPushButton *pb = (QPushButton *)pagesheader.find(nsp);
QPixmap pixmap = nsp->pixmap();
if ((pixmap.width() > 88) || (pixmap.height() > 31)) {
QImage image = pixmap.convertToImage();
pixmap.convertFromImage(image.smoothScale(88, 31, QImage::ScaleMin));
}
pb->setPixmap(pixmap);
}
void NSStackTabWidget::buttonClicked() {
QPushButton *pb = (QPushButton*)sender();
NSPanel *nsp = NULL;
// Which NSPanel belongs to pb
QPtrDictIterator<QWidget> it(pagesheader);
for (; it.current(); ++it) {
QPushButton *currentWidget = (QPushButton *)it.current();
if (currentWidget == pb)
nsp = (NSPanel *)it.currentKey();
}
if (! nsp)
return;
// Find current ScrollView
QWidget *sv = pages.find(nsp);
// Change visible page
if (currentPage != sv) {
nsp->refresh();
if (currentPage)
currentPage->hide();
currentPage = sv;
currentPage->show();
}
}
bool NSStackTabWidget::eventFilter(QObject *obj, QEvent *ev) {
if (ev->type() == QEvent::MouseButtonPress
&& ((QMouseEvent *)ev)->button() == QMouseEvent::RightButton) {
m_last_button_rightclicked = (QPushButton *)obj;
popup->exec(QCursor::pos());
return true;
} else if (ev->type() == QEvent::Resize) {
QPushButton *pb = (QPushButton *)obj;
const QPixmap *pm = pb->pixmap();
if ( ! pm ) {
// Which NSPanel belongs to pb
NSPanel *nsp = NULL;
QPtrDictIterator<QWidget> it(pagesheader);
for (; it.current(); ++it) {
QPushButton *currentWidget = (QPushButton *)it.current();
if (currentWidget == pb)
nsp = (NSPanel *)it.currentKey();
}
pb->setText(KStringHandler::rPixelSqueeze(nsp->title(),
pb->fontMetrics(),
pb->width() - 4 ));
}
return true;
}
return false; // pass through event
}
void NSStackTabWidget::slotConfigure() {
// An instance of your dialog could be already created and could be
// cached, in which case you want to display the cached dialog
// instead of creating another one
if (KConfigDialog::showDialog("settings"))
return;
// KConfigDialog didn't find an instance of this dialog, so lets create it
m_confdlg = new KConfigDialog(this, "settings", SidebarSettings::self(),
KDialogBase::Plain,
KDialogBase::Ok|KDialogBase::Cancel| \
KDialogBase::Default| \
KDialogBase::Apply,
KDialogBase::Ok,
true);
ConfigFeeds *conf_widget = new ConfigFeeds(0, "feedcfgdlg");
m_confdlg->addPage(conf_widget, i18n("RSS Settings"), QString());
// User edited the configuration - update your local copies of the
// configuration data
connect(m_confdlg, SIGNAL(settingsChanged()), this,
SLOT(slotConfigure_okClicked()));
m_confdlg->show();
}
void NSStackTabWidget::slotConfigure_okClicked() {
DCOPRef rss_document("rssservice", "RSSService");
// remove old sources and old stack tabs
QStringList::iterator it;
for (it = m_our_rsssources.begin(); it != m_our_rsssources.end(); ++it) {
rss_document.call("remove", (*it));
}
// read list of sources
m_our_rsssources = SidebarSettings::sources();
// add new sources and new stack tabs
for (it = m_our_rsssources.begin(); it != m_our_rsssources.end(); ++it) {
rss_document.call("add", (*it));
}
// save configuration to disk
SidebarSettings::setSources(m_our_rsssources);
SidebarSettings::writeConfig();
}
void NSStackTabWidget::slotShowAbout() {
m_about->show();
}
void NSStackTabWidget::slotShowBugreport() {
m_bugreport->show();
}
void NSStackTabWidget::slotRefresh() {
NSPanel *nsp = NULL;
// find appendant NSPanel
QPtrDictIterator<QWidget> it(pagesheader);
for (; it.current(); ++it) {
QPushButton *currentWidget = (QPushButton *)it.current();
if (currentWidget == m_last_button_rightclicked)
nsp = (NSPanel *)it.currentKey();
}
if (! nsp) {
return;
} else {
nsp->refresh();
}
}
void NSStackTabWidget::slotClose() {
NSPanel *nsp = NULL;
// find appendant NSPanel
QPtrDictIterator<QWidget> it(pagesheader);
for (; it.current(); ++it) {
QPushButton *currentWidget = (QPushButton *)it.current();
if (currentWidget == m_last_button_rightclicked)
nsp = (NSPanel *)it.currentKey();
}
if (! nsp) {
return;
} else {
// TODO: check, if rssservice is available
// deregister RSS source and save configuration to disk
m_our_rsssources.remove(nsp->key());
SidebarSettings::setSources(m_our_rsssources);
SidebarSettings::writeConfig();
DCOPRef rss_document("rssservice", "RSSService");
rss_document.call("remove", nsp->key());
}
}
bool NSStackTabWidget::isEmpty() const {
return pagesheader.isEmpty();
}
bool NSStackTabWidget::isRegistered(const QString &key) {
m_our_rsssources = SidebarSettings::sources();
if (m_our_rsssources.findIndex(key) == -1)
return false;
else
return true;
}
} // namespace KSB_News;
#include "nsstacktabwidget.moc"
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