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tdepim/knode/kngroupbrowser.cpp

482 lines
12 KiB

/*
kngroupbrowser.cpp
KNode, the KDE newsreader
Copyright (c) 1999-2001 the KNode authors.
See file AUTHORS for details
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, US
*/
#include <tqlayout.h>
#include <tqcheckbox.h>
#include <tqtimer.h>
#include <tqapplication.h>
#include <kseparator.h>
#include <kiconloader.h>
#include <klocale.h>
#include <kdebug.h>
#include <klineedit.h>
#include "knnetaccess.h"
#include "knglobals.h"
#include "knconfigmanager.h"
#include "knnntpaccount.h"
#include "kngroupbrowser.h"
#include <tqlabel.h>
#include <tqpushbutton.h>
KNGroupBrowser::KNGroupBrowser(TQWidget *parent, const TQString &caption, KNNntpAccount *a,
int buttons, bool newCBact, const TQString &user1, const TQString &user2) :
KDialogBase( parent, 0L, true, caption, buttons | Help | Ok | Cancel, Ok, true, user1, user2 ),
incrementalFilter(false), a_ccount(a)
{
refilterTimer = new TQTimer();
allList=new TQSortedList<KNGroupInfo>;
allList->setAutoDelete(true);
matchList=new TQSortedList<KNGroupInfo>;
matchList->setAutoDelete(false);
//create Widgets
page=new TQWidget(this);
setMainWidget(page);
filterEdit=new KLineEdit(page);
TQLabel *l=new TQLabel(filterEdit,i18n("S&earch:"), page);
noTreeCB=new TQCheckBox(i18n("Disable &tree view"), page);
noTreeCB->setChecked(false);
subCB=new TQCheckBox(i18n("&Subscribed only"), page);
subCB->setChecked(false);
newCB=new TQCheckBox(i18n("&New only"), page);
if (!newCBact)
newCB->hide();
newCB->setChecked(false);
KSeparator *sep=new KSeparator(KSeparator::HLine, page);
TQFont fnt=font();
fnt.setBold(true);
leftLabel=new TQLabel(i18n("Loading groups..."), page);
rightLabel=new TQLabel(page);
leftLabel->setFont(fnt);
rightLabel->setFont(fnt);
pmGroup=knGlobals.configManager()->appearance()->icon(KNConfig::Appearance::group);
pmNew=knGlobals.configManager()->appearance()->icon(KNConfig::Appearance::redBall);
pmRight=BarIconSet( TQApplication::reverseLayout()? "back": "forward");
pmLeft=BarIconSet( TQApplication::reverseLayout() ? "forward" : "back");
arrowBtn1=new TQPushButton(page);
arrowBtn1->setEnabled(false);
arrowBtn2=new TQPushButton(page);
arrowBtn2->setEnabled(false);
arrowBtn1->setIconSet(pmRight);
arrowBtn2->setIconSet(pmLeft);
arrowBtn1->setFixedSize(35,30);
arrowBtn2->setFixedSize(35,30);
groupView=new TQListView(page);
groupView->setRootIsDecorated(true);
groupView->addColumn(i18n("Name"));
groupView->addColumn(i18n("Description"));
groupView->setTreeStepSize(15);
connect(groupView, TQT_SIGNAL(doubleClicked(TQListViewItem*)),
this, TQT_SLOT(slotItemDoubleClicked(TQListViewItem*)));
//layout
TQGridLayout *topL=new TQGridLayout(page,3,1,0,5);
TQHBoxLayout *filterL=new TQHBoxLayout(10);
TQVBoxLayout *arrL=new TQVBoxLayout(10);
listL=new TQGridLayout(2, 3, 5);
topL->addLayout(filterL, 0,0);
topL->addWidget(sep,1,0);
topL->addLayout(listL, 2,0);
filterL->addWidget(l);
filterL->addWidget(filterEdit, 1);
filterL->addWidget(noTreeCB);
filterL->addWidget(subCB);
if (newCBact)
filterL->addWidget(newCB);
listL->addWidget(leftLabel, 0,0);
listL->addWidget(rightLabel, 0,2);
listL->addWidget(groupView, 1,0);
listL->addLayout(arrL, 1,1);
listL->setRowStretch(1,1);
listL->setColStretch(0,5);
listL->setColStretch(2,2);
arrL->addWidget(arrowBtn1, AlignCenter);
arrL->addWidget(arrowBtn2, AlignCenter);
//connect
connect(filterEdit, TQT_SIGNAL(textChanged(const TQString&)),
TQT_SLOT(slotFilterTextChanged(const TQString&)));
connect(groupView, TQT_SIGNAL(expanded(TQListViewItem*)),
TQT_SLOT(slotItemExpand(TQListViewItem*)));
connect(refilterTimer, TQT_SIGNAL(timeout()), TQT_SLOT(slotRefilter()));
connect(noTreeCB, TQT_SIGNAL(clicked()), TQT_SLOT(slotTreeCBToggled()));
connect(subCB, TQT_SIGNAL(clicked()), TQT_SLOT(slotSubCBToggled()));
connect(newCB, TQT_SIGNAL(clicked()), TQT_SLOT(slotNewCBToggled()));
enableButton(User1,false);
enableButton(User2,false);
filterEdit->setFocus();
TQTimer::singleShot(2, this, TQT_SLOT(slotLoadList()));
}
KNGroupBrowser::~KNGroupBrowser()
{
knGlobals.netAccess()->stopJobsNntp(KNJobData::JTLoadGroups);
knGlobals.netAccess()->stopJobsNntp(KNJobData::JTFetchGroups);
knGlobals.netAccess()->stopJobsNntp(KNJobData::JTCheckNewGroups);
delete matchList;
delete allList;
delete refilterTimer;
}
void KNGroupBrowser::slotReceiveList(KNGroupListData* d)
{
enableButton(User1,true);
enableButton(User2,true);
if (d) { // d==0 if something has gone wrong...
delete allList;
allList = d->extractList();
incrementalFilter=false;
slotRefilter();
}
}
void KNGroupBrowser::changeItemState(const KNGroupInfo &gi, bool s)
{
TQListViewItemIterator it(groupView);
for( ; it.current(); ++it)
if (it.current()->isSelectable() && (static_cast<CheckItem*>(it.current())->info==gi))
static_cast<CheckItem*>(it.current())->setChecked(s);
}
bool KNGroupBrowser::itemInListView(TQListView *view, const KNGroupInfo &gi)
{
if(!view) return false;
TQListViewItemIterator it(view);
for( ; it.current(); ++it)
if(static_cast<GroupItem*>(it.current())->info==gi)
return true;
return false;
}
void KNGroupBrowser::createListItems(TQListViewItem *parent)
{
TQString prefix, tlgn, compare;
TQListViewItem *it;
CheckItem *cit;
int colon;
bool expandit=false;
if(parent) {
TQListViewItem *p=parent;
while(p) {
prefix.prepend(p->text(0));
p=p->parent();
}
}
for(KNGroupInfo *gn=matchList->first(); gn; gn=matchList->next()) {
if(!prefix.isEmpty() && !gn->name.startsWith(prefix))
if(!compare.isNull())
break;
else
continue;
compare=gn->name.mid(prefix.length());
if(!expandit || !compare.startsWith(tlgn)) {
if((colon=compare.find('.'))!=-1) {
colon++;
expandit=true;
} else {
colon=compare.length();
expandit=false;
}
tlgn = compare.left(colon);
if(expandit) {
if(parent)
it=new TQListViewItem(parent, tlgn);
else
it=new TQListViewItem(groupView, tlgn);
it->setSelectable(false);
it->setExpandable(true);
}
else {
if(parent)
cit=new CheckItem(parent, *gn, this);
else
cit=new CheckItem(groupView, *gn, this);
updateItemState(cit);
}
}
}
}
void KNGroupBrowser::removeListItem(TQListView *view, const KNGroupInfo &gi)
{
if(!view) return;
TQListViewItemIterator it(view);
for( ; it.current(); ++it)
if(static_cast<GroupItem*>(it.current())->info==gi) {
delete it.current();
break;
}
}
void KNGroupBrowser::slotLoadList()
{
emit(loadList(a_ccount));
}
void KNGroupBrowser::slotItemExpand(TQListViewItem *it)
{
if(!it) return;
if(it->childCount()) {
kdDebug(5003) << "KNGroupBrowser::slotItemExpand() : has already been expanded, returning" << endl;
return;
}
createListItems(it);
// center the item - smart scrolling
delayedCenter = -1;
int y = groupView->itemPos(it);
int h = it->height();
if ( (y+h*4+5) >= (groupView->contentsY()+groupView->visibleHeight()) )
{
groupView->ensureVisible(groupView->contentsX(), y+h/2, 0, h/2);
delayedCenter = y+h/2;
TQTimer::singleShot(300, this, TQT_SLOT(slotCenterDelayed()));
}
}
void KNGroupBrowser::slotCenterDelayed()
{
if (delayedCenter != -1)
groupView->ensureVisible(groupView->contentsX(), delayedCenter, 0, groupView->visibleHeight()/2);
}
void KNGroupBrowser::slotItemDoubleClicked(TQListViewItem *it)
{
if (it && (it->childCount()==0)) static_cast<CheckItem*>(it)->setOn(!static_cast<CheckItem*>(it)->isOn());
}
#define MIN_FOR_TREE 200
void KNGroupBrowser::slotFilter(const TQString &txt)
{
TQString filtertxt = txt.lower();
TQRegExp reg(filtertxt, false, false);
CheckItem *cit=0;
bool notCheckSub = !subCB->isChecked();
bool notCheckNew = !newCB->isChecked();
bool notCheckStr = (filtertxt.isEmpty());
bool isRegexp = filtertxt.contains(TQRegExp("[^a-z0-9\\-\\+.]"));
bool doIncrementalUpdate = (!isRegexp && incrementalFilter && (filtertxt.left(lastFilter.length())==lastFilter));
if (doIncrementalUpdate) {
TQSortedList<KNGroupInfo> *tempList = new TQSortedList<KNGroupInfo>();
tempList->setAutoDelete(false);
for(KNGroupInfo *g=matchList->first(); g; g=matchList->next()) {
if ((notCheckSub||g->subscribed)&&
(notCheckNew||g->newGroup)&&
(notCheckStr||(g->name.find(filtertxt)!=-1)))
tempList->append(g);
}
delete matchList;
matchList=tempList;
} else {
matchList->clear();
for(KNGroupInfo *g=allList->first(); g; g=allList->next()) {
if ((notCheckSub||g->subscribed)&&
(notCheckNew||g->newGroup)&&
(notCheckStr||(isRegexp? (reg.search(g->name,0) != -1):(g->name.find(filtertxt)!=-1))))
matchList->append(g);
}
}
groupView->clear();
if((matchList->count() < MIN_FOR_TREE) || noTreeCB->isChecked()) {
for(KNGroupInfo *g=matchList->first(); g; g=matchList->next()) {
cit=new CheckItem(groupView, *g, this);
updateItemState(cit);
}
} else {
createListItems();
}
lastFilter = filtertxt;
incrementalFilter = !isRegexp;
leftLabel->setText(i18n("Groups on %1: (%2 displayed)").arg(a_ccount->name()).arg(matchList->count()));
arrowBtn1->setEnabled(false);
arrowBtn2->setEnabled(false);
}
void KNGroupBrowser::slotTreeCBToggled()
{
incrementalFilter=false;
slotRefilter();
}
void KNGroupBrowser::slotSubCBToggled()
{
incrementalFilter=subCB->isChecked();
slotRefilter();
}
void KNGroupBrowser::slotNewCBToggled()
{
incrementalFilter=newCB->isChecked();
slotRefilter();
}
void KNGroupBrowser::slotFilterTextChanged(const TQString &)
{
if (subCB->isChecked() || newCB->isChecked())
slotRefilter();
else
refilterTimer->start(200,true);
}
void KNGroupBrowser::slotRefilter()
{
refilterTimer->stop();
slotFilter(filterEdit->text());
}
//=======================================================================================
KNGroupBrowser::CheckItem::CheckItem(TQListView *v, const KNGroupInfo &gi, KNGroupBrowser *b) :
TQCheckListItem(v, gi.name, TQCheckListItem::CheckBox), info(gi), browser(b)
{
TQString des(gi.description);
if (gi.status == KNGroup::moderated) {
setText(0,gi.name+" (m)");
if (!des.upper().contains(i18n("moderated").upper()))
des+=i18n(" (moderated)");
}
setText(1,des);
}
KNGroupBrowser::CheckItem::CheckItem(TQListViewItem *i, const KNGroupInfo &gi, KNGroupBrowser *b) :
TQCheckListItem(i, gi.name, TQCheckListItem::CheckBox), info(gi), browser(b)
{
TQString des(gi.description);
if (gi.status == KNGroup::moderated) {
setText(0,gi.name+" (m)");
if (!des.upper().contains(i18n("moderated").upper()))
des+=i18n(" (moderated)");
}
setText(1,des);
}
KNGroupBrowser::CheckItem::~CheckItem()
{
}
void KNGroupBrowser::CheckItem::setChecked(bool c)
{
KNGroupBrowser *b=browser;
browser=0;
TQCheckListItem::setOn(c);
browser=b;
}
void KNGroupBrowser::CheckItem::stateChange(bool s)
{
if(browser) {
kdDebug(5003) << "KNGroupBrowser::CheckItem::stateChange()" << endl;
browser->itemChangedState(this, s);
}
}
//=======================================================================================
KNGroupBrowser::GroupItem::GroupItem(TQListView *v, const KNGroupInfo &gi)
: TQListViewItem(v, gi.name), info(gi)
{
if (gi.status == KNGroup::moderated)
setText(0,gi.name+" (m)");
}
KNGroupBrowser::GroupItem::GroupItem(TQListViewItem *i, const KNGroupInfo &gi)
: TQListViewItem(i, gi.name), info(gi)
{
}
KNGroupBrowser::GroupItem::~GroupItem()
{
}
//-----------------------------------------
#include "kngroupbrowser.moc"