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00020 #include "kpfilterpage.h"
00021 #include "kmfactory.h"
00022 #include "kxmlcommand.h"
00023
00024 #include <qtoolbutton.h>
00025 #include <qheader.h>
00026 #include <qtooltip.h>
00027 #include <qlayout.h>
00028 #include <klistview.h>
00029 #include <klocale.h>
00030 #include <kiconloader.h>
00031 #include <kmessagebox.h>
00032 #include <kactivelabel.h>
00033 #include <kdebug.h>
00034 #include <kapplication.h>
00035 #include <kdialog.h>
00036
00037 KPFilterPage::KPFilterPage(QWidget *parent, const char *name)
00038 : KPrintDialogPage(parent,name)
00039 {
00040 setTitle(i18n("Filters"));
00041 m_activefilters.setAutoDelete(true);
00042 m_valid = true;
00043
00044 m_view = new KListView(this);
00045 m_view->addColumn("");
00046 m_view->setFrameStyle(QFrame::WinPanel|QFrame::Sunken);
00047 m_view->setLineWidth(1);
00048 m_view->setSorting(-1);
00049 m_view->header()->hide();
00050 connect(m_view,SIGNAL(selectionChanged(QListViewItem*)),SLOT(slotItemSelected(QListViewItem*)));
00051
00052 m_add = new QToolButton(this);
00053 m_add->setIconSet(BarIconSet("filter"));
00054 QToolTip::add(m_add, i18n("Add filter"));
00055 m_remove = new QToolButton(this);
00056 m_remove->setIconSet(BarIconSet("remove"));
00057 QToolTip::add(m_remove, i18n("Remove filter"));
00058 m_up = new QToolButton(this);
00059 m_up->setIconSet(BarIconSet("up"));
00060 QToolTip::add(m_up, i18n("Move filter up"));
00061 m_down = new QToolButton(this);
00062 m_down->setIconSet(BarIconSet("down"));
00063 QToolTip::add(m_down, i18n("Move filter down"));
00064 m_configure = new QToolButton(this);
00065 m_configure->setIconSet(BarIconSet("configure"));
00066 QToolTip::add(m_configure, i18n("Configure filter"));
00067 connect(m_add,SIGNAL(clicked()),SLOT(slotAddClicked()));
00068 connect(m_remove,SIGNAL(clicked()),SLOT(slotRemoveClicked()));
00069 connect(m_up,SIGNAL(clicked()),SLOT(slotUpClicked()));
00070 connect(m_down,SIGNAL(clicked()),SLOT(slotDownClicked()));
00071 connect(m_configure,SIGNAL(clicked()),SLOT(slotConfigureClicked()));
00072 connect(m_view,SIGNAL(doubleClicked(QListViewItem*)),SLOT(slotConfigureClicked()));
00073
00074 m_info = new KActiveLabel(this);
00075 m_info->setVScrollBarMode( QScrollView::Auto );
00076 m_info->setHScrollBarMode( QScrollView::Auto );
00077 m_info->setFrameStyle( QFrame::Panel|QFrame::Sunken );
00078 m_info->setMinimumSize( QSize( 240, 100 ) );
00079
00080 QGridLayout *l1 = new QGridLayout(this, 2, 2, 0, KDialog::spacingHint());
00081 l1->setColStretch(0, 1);
00082 QVBoxLayout *l2 = new QVBoxLayout(0, 0, 1);
00083 l1->addWidget(m_view, 0, 0);
00084 l1->addLayout(l2, 0, 1);
00085 l2->addWidget(m_add);
00086 l2->addWidget(m_remove);
00087 l2->addSpacing(5);
00088 l2->addWidget(m_up);
00089 l2->addWidget(m_down);
00090 l2->addSpacing(5);
00091 l2->addWidget(m_configure);
00092 l2->addStretch(1);
00093 l1->addMultiCellWidget(m_info, 1, 1, 0, 1);
00094 slotItemSelected(0);
00095
00096 resize(100,50);
00097 }
00098
00099 KPFilterPage::~KPFilterPage()
00100 {
00101 }
00102
00103 void KPFilterPage::updateButton()
00104 {
00105
00106
00107
00108
00109
00110
00111 }
00112
00113 void KPFilterPage::slotAddClicked()
00114 {
00115 bool ok;
00116 QString choice = KXmlCommandManager::self()->selectCommand( this );
00117 ok = !choice.isEmpty();
00118 if (ok)
00119 {
00120 KXmlCommand *cmd = KXmlCommandManager::self()->loadCommand(choice);
00121 if (!cmd) return;
00122 QStringList filters = activeList();
00123 int pos = KXmlCommandManager::self()->insertCommand(filters, cmd->name());
00124 QListViewItem *prev(0);
00125 if (pos > 0)
00126 {
00127 prev = m_view->firstChild();
00128 for (int i=1;prev && i<pos;i++)
00129 prev = prev->nextSibling();
00130 }
00131 m_activefilters.insert(cmd->name(), cmd);
00132 QListViewItem *item = new QListViewItem(m_view, prev, cmd->description(), cmd->name());
00133 item->setPixmap(0, SmallIcon("filter"));
00134 checkFilterChain();
00135 }
00136 }
00137
00138 void KPFilterPage::slotRemoveClicked()
00139 {
00140 if (m_view->selectedItem())
00141 {
00142 QString idname = m_view->selectedItem()->text(1);
00143 delete m_view->selectedItem();
00144 m_activefilters.remove(idname);
00145 checkFilterChain();
00146 if (m_view->currentItem())
00147 m_view->setSelected(m_view->currentItem(), true);
00148 slotItemSelected(m_view->currentItem());
00149 }
00150 }
00151
00152 void KPFilterPage::slotUpClicked()
00153 {
00154 QListViewItem *item = m_view->selectedItem();
00155 if (item && item->itemAbove())
00156 {
00157 QListViewItem *clone = new QListViewItem(m_view,item->itemAbove()->itemAbove(),item->text(0),item->text(1));
00158 clone->setPixmap(0, SmallIcon("filter"));
00159 delete item;
00160 m_view->setSelected(clone, true);
00161 checkFilterChain();
00162 }
00163 }
00164
00165 void KPFilterPage::slotDownClicked()
00166 {
00167 QListViewItem *item = m_view->selectedItem();
00168 if (item && item->itemBelow())
00169 {
00170 QListViewItem *clone = new QListViewItem(m_view,item->itemBelow(),item->text(0),item->text(1));
00171 clone->setPixmap(0, SmallIcon("filter"));
00172 delete item;
00173 m_view->setSelected(clone, true);
00174 checkFilterChain();
00175 }
00176 }
00177
00178 void KPFilterPage::slotConfigureClicked()
00179 {
00180 KXmlCommand *filter = currentFilter();
00181 if (!filter || !KXmlCommandManager::self()->configure(filter, this))
00182 KMessageBox::error(this,i18n("Internal error: unable to load filter."));
00183 }
00184
00185 void KPFilterPage::slotItemSelected(QListViewItem *item)
00186 {
00187 m_remove->setEnabled((item != 0));
00188 m_up->setEnabled((item != 0 && item->itemAbove() != 0));
00189 m_down->setEnabled((item != 0 && item->itemBelow() != 0));
00190 m_configure->setEnabled((item != 0));
00191 updateInfo();
00192 }
00193
00194 void KPFilterPage::setOptions(const QMap<QString,QString>& opts)
00195 {
00196 QStringList filters = QStringList::split(',',opts["_kde-filters"],false);
00197
00198 QDictIterator<KXmlCommand> dit(m_activefilters);
00199 for (;dit.current();)
00200 {
00201 if (filters.find(dit.currentKey()) == filters.end())
00202 m_activefilters.remove(dit.currentKey());
00203 else
00204 {
00205 dit.current()->setOptions(opts);
00206 ++dit;
00207 }
00208 }
00209
00210 m_view->clear();
00211 QListViewItem *item(0);
00212 for (QStringList::ConstIterator sit=filters.begin(); sit!=filters.end(); ++sit)
00213 {
00214 KXmlCommand *f(0);
00215 if ((f=m_activefilters.find(*sit)) == 0)
00216 {
00217 f = KXmlCommandManager::self()->loadCommand(*sit);
00218 if (f)
00219 {
00220 m_activefilters.insert(*sit,f);
00221 f->setOptions(opts);
00222 }
00223 }
00224 if (f)
00225 item = new QListViewItem(m_view,item,f->description(),f->name());
00226 }
00227 checkFilterChain();
00228 }
00229
00230 void KPFilterPage::getOptions(QMap<QString,QString>& opts, bool incldef)
00231 {
00232 QStringList filters = activeList();
00233 for (QStringList::ConstIterator it=filters.begin(); it!=filters.end(); ++it)
00234 {
00235 KXmlCommand *f = m_activefilters.find(*it);
00236 if (f)
00237 f->getOptions(opts, incldef);
00238 }
00239 if (filters.count() > 0 || incldef)
00240 {
00241 opts["_kde-filters"] = filters.join(",");
00242 }
00243 }
00244
00245 QStringList KPFilterPage::activeList()
00246 {
00247 QStringList list;
00248 QListViewItem *item = m_view->firstChild();
00249 while (item)
00250 {
00251 list.append(item->text(1));
00252 item = item->nextSibling();
00253 }
00254 return list;
00255 }
00256
00257 KXmlCommand* KPFilterPage::currentFilter()
00258 {
00259 KXmlCommand *filter(0);
00260 if (m_view->selectedItem())
00261 filter = m_activefilters.find(m_view->selectedItem()->text(1));
00262 return filter;
00263 }
00264
00265 void KPFilterPage::checkFilterChain()
00266 {
00267 QListViewItem *item = m_view->firstChild();
00268 bool ok(true);
00269 m_valid = true;
00270 while (item)
00271 {
00272 item->setPixmap(0, (ok ? SmallIcon("filter") : SmallIcon("filterstop")));
00273 KXmlCommand *f1 = m_activefilters.find(item->text(1));
00274 if (f1 && item->nextSibling())
00275 {
00276 KXmlCommand *f2 = m_activefilters.find(item->nextSibling()->text(1));
00277 if (f2)
00278 {
00279 if (!f2->acceptMimeType(f1->mimeType()))
00280 {
00281 item->setPixmap(0, SmallIcon("filterstop"));
00282 ok = false;
00283 m_valid = false;
00284 }
00285 else
00286 ok = true;
00287 }
00288 }
00289 item = item->nextSibling();
00290 }
00291 }
00292
00293 bool KPFilterPage::isValid(QString& msg)
00294 {
00295 if (!m_valid)
00296 {
00297 msg = i18n("<p>The filter chain is wrong. The output format of at least one filter is not supported by its follower. See <b>Filters</b> tab for more information.</p>");
00298 }
00299 return m_valid;
00300 }
00301
00302 void KPFilterPage::updateInfo()
00303 {
00304 QString txt;
00305 KXmlCommand *f = currentFilter();
00306 if (f)
00307 {
00308 QString templ("<b>%1:</b> %2<br>");
00309 txt.append(templ.arg(i18n("Name")).arg(f->name()));
00310 txt.append(templ.arg(i18n("Requirements")).arg(f->requirements().join(", ")));
00311 txt.append(templ.arg(i18n("Input")).arg(f->inputMimeTypes().join(", ")));
00312 txt.append(templ.arg(i18n("Output")).arg(f->mimeType()));
00313 if ( !f->comment().isEmpty() )
00314 txt.append( "<br>" ).append( f->comment() );
00315 }
00316 m_info->setText(txt);
00317 }
00318
00319 #include "kpfilterpage.moc"