src/infosidebarpage.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "infosidebarpage.h"
  21 #include <assert.h>
  22
  23 #include <qlayout.h>
  24 #include <qpixmap.h>
  25 #include <qlabel.h>
  26 #include <qtimer.h>
  27 #include <qpushbutton.h>
  28
  29 #include <q3vgroupbox.h>
  30 #include <q3popupmenu.h>
  31 #include <qpainter.h>
  32 #include <qfontmetrics.h>
  33 #include <q3grid.h>
  34 #include <q3hgroupbox.h>
  35 //Added by qt3to4:
  36 #include <Q3ValueList>
  37 #include <QEvent>
  38 #include <Q3VBoxLayout>
  39 #include <QInputDialog>
  40
  41 #include <kbookmarkmanager.h>
  42 #include <klocale.h>
  43 #include <kstandarddirs.h>
  44 #include <kio/previewjob.h>
  45 #include <kfileitem.h>
  46 #include <kdialog.h>
  47 #include <kglobalsettings.h>
  48 #include <kfilemetainfo.h>
  49 #include <kvbox.h>
  50
  51 #include "dolphinmainwindow.h"
  52 #include "dolphinapplication.h"
  53 #include "pixmapviewer.h"
  54 #include "dolphinsettings.h"
  55 #include "metadataloader.h"
  56
  57 InfoSidebarPage::InfoSidebarPage(DolphinMainWindow* mainWindow, QWidget* parent) :
  58     SidebarPage(mainWindow, parent),
  59     m_multipleSelection(false),
  60     m_pendingPreview(false),
  61     m_timer(0),
  62     m_preview(0),
  63     m_name(0),
  64     m_infos(0),
  65     m_metadata(DolphinApplication::app()->metadataLoader())
  66 {
  67     const int spacing = KDialog::spacingHint();
  68
  69     m_timer = new QTimer(this);
  70     connect(m_timer, SIGNAL(timeout()),
  71             this, SLOT(slotTimeout()));
  72
  73     QVBoxLayout* layout = new QVBoxLayout;
  74     layout->setSpacing(spacing);
  75
  76     // preview
  77     m_preview = new PixmapViewer(this);
  78     m_preview->setMinimumWidth(K3Icon::SizeEnormous);
  79     m_preview->setFixedHeight(K3Icon::SizeEnormous);
  80
  81     // name
  82     m_name = new QLabel(this);
  83     m_name->setTextFormat(Qt::RichText);
  84     m_name->setAlignment(m_name->alignment() | Qt::AlignHCenter);
  85     QFontMetrics fontMetrics(m_name->font());
  86     m_name->setMinimumHeight(fontMetrics.height() * 3);
  87     m_name->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Maximum);
  88
  89     QWidget* sep1 = new Q3HGroupBox(this);  // TODO: check whether default widget exist for this?
  90     sep1->setFixedHeight(1);
  91
  92     // general information
  93     m_infos = new QLabel(this);
  94     m_infos->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
  95     m_infos->setTextFormat(Qt::RichText);
  96
  97     // annotation
  98     if (m_metadata->storageUp()) {
  99         m_annotationLabel = new QLabel(this);
 100         m_annotationLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
 101         m_annotationLabel->setTextFormat(Qt::RichText);
 102         m_annotationLabel->setWordWrap(true);
 103         m_annotationButton = new QPushButton("", this);
 104         m_annotationButton->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
 105         connect(m_annotationButton, SIGNAL(released()), this, SLOT(changeAnnotation()));
 106     }
 107
 108     QWidget* sep2 = new Q3HGroupBox(this);  // TODO: check whether default widget exist for this?
 109     sep2->setFixedHeight(1);
 110
 111     QWidget* sep3 = new Q3HGroupBox(this);  // TODO: check whether default widget exist for this?
 112     sep3->setFixedHeight(1);
 113
 114     // actions
 115     m_actionBox = new KVBox(this);
 116     m_actionBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 117
 118     // Add a dummy widget with no restriction regarding a vertical resizing.
 119     // This assures that information is always top aligned.
 120     QWidget* dummy = new QWidget(this);
 121
 122     layout->addItem(new QSpacerItem(spacing, spacing, QSizePolicy::Preferred, QSizePolicy::Fixed));
 123     layout->addWidget(m_preview);
 124     layout->addWidget(m_name);
 125     layout->addWidget(sep1);
 126     layout->addWidget(m_infos);
 127     layout->addWidget(sep2);
 128     if (m_metadata->storageUp()) {
 129         layout->addWidget(m_annotationLabel);
 130         layout->addWidget(m_annotationButton);
 131         layout->addWidget(sep3);
 132     }
 133     layout->addWidget(m_actionBox);
 134     layout->addWidget(dummy);
 135     setLayout(layout);
 136     connect(mainWindow, SIGNAL(selectionChanged()),
 137             this, SLOT(showItemInfo()));
 138
 139     connectToActiveView();
 140 }
 141
 142 InfoSidebarPage::~InfoSidebarPage()
 143 {
 144 }
 145
 146 void InfoSidebarPage::activeViewChanged()
 147 {
 148     connectToActiveView();
 149 }
 150
 151 void InfoSidebarPage::requestDelayedItemInfo(const KUrl& url)
 152 {
 153     cancelRequest();
 154
 155     if (!url.isEmpty() && !m_multipleSelection) {
 156         m_urlCandidate = url;
 157         m_timer->setSingleShot(true);
 158         m_timer->start(300);
 159     }
 160 }
 161
 162 void InfoSidebarPage::requestItemInfo(const KUrl& url)
 163 {
 164     cancelRequest();
 165
 166     if (!url.isEmpty() && !m_multipleSelection) {
 167         m_shownUrl = url;
 168         showItemInfo();
 169     }
 170 }
 171
 172 void InfoSidebarPage::showItemInfo()
 173 {
 174     cancelRequest();
 175
 176     m_multipleSelection = false;
 177
 178     // show the preview...
 179     DolphinView* view = mainWindow()->activeView();
 180     const KFileItemList selectedItems = view->selectedItems();
 181     if (selectedItems.count() > 1) {
 182         m_multipleSelection = true;
 183     }
 184
 185     if (m_multipleSelection) {
 186         KIconLoader iconLoader;
 187         QPixmap icon = iconLoader.loadIcon("exec",
 188                                            K3Icon::NoGroup,
 189                                            K3Icon::SizeEnormous);
 190         m_preview->setPixmap(icon);
 191         m_name->setText(i18n("%1 items selected",selectedItems.count()));
 192     }
 193     else if (!applyBookmark()) {
 194         // try to get a preview pixmap from the item...
 195         KUrl::List list;
 196         list.append(m_shownUrl);
 197
 198         m_pendingPreview = true;
 199         m_preview->setPixmap(QPixmap());
 200
 201         KIO::PreviewJob* job = KIO::filePreview(list,
 202                                                 m_preview->width(),
 203                                                 K3Icon::SizeEnormous,
 204                                                 0,
 205                                                 0,
 206                                                 true,
 207                                                 false);
 208         job->setIgnoreMaximumSize(true);
 209
 210         connect(job, SIGNAL(gotPreview(const KFileItem*, const QPixmap&)),
 211                 this, SLOT(gotPreview(const KFileItem*, const QPixmap&)));
 212         connect(job, SIGNAL(failed(const KFileItem*)),
 213                 this, SLOT(slotPreviewFailed(const KFileItem*)));
 214
 215         QString text("<b>");
 216         text.append(m_shownUrl.fileName());
 217         text.append("</b>");
 218         m_name->setText(text);
 219     }
 220
 221     createMetaInfo();
 222     insertActions();
 223 }
 224
 225 void InfoSidebarPage::slotTimeout()
 226 {
 227     m_shownUrl = m_urlCandidate;
 228     showItemInfo();
 229 }
 230
 231 void InfoSidebarPage::slotPreviewFailed(const KFileItem* item)
 232 {
 233     m_pendingPreview = false;
 234     if (!applyBookmark()) {
 235         m_preview->setPixmap(item->pixmap(K3Icon::SizeEnormous));
 236     }
 237 }
 238
 239 void InfoSidebarPage::gotPreview(const KFileItem* /* item */,
 240                                  const QPixmap& pixmap)
 241 {
 242     if (m_pendingPreview) {
 243         m_preview->setPixmap(pixmap);
 244         m_pendingPreview = false;
 245     }
 246 }
 247
 248 void InfoSidebarPage::startService(int index)
 249 {
 250     DolphinView* view = mainWindow()->activeView();
 251     if (view->hasSelection()) {
 252         KUrl::List selectedUrls = view->selectedUrls();
 253         KDEDesktopMimeType::executeService(selectedUrls, m_actionsVector[index]);
 254     }
 255     else {
 256         KDEDesktopMimeType::executeService(m_shownUrl, m_actionsVector[index]);
 257     }
 258 }
 259
 260 void InfoSidebarPage::connectToActiveView()
 261 {
 262     cancelRequest();
 263
 264     DolphinView* view = mainWindow()->activeView();
 265     connect(view, SIGNAL(requestItemInfo(const KUrl&)),
 266             this, SLOT(requestDelayedItemInfo(const KUrl&)));
 267     connect(view, SIGNAL(urlChanged(const KUrl&)),
 268             this, SLOT(requestItemInfo(const KUrl&)));
 269
 270     m_shownUrl = view->url();
 271     showItemInfo();
 272 }
 273
 274 bool InfoSidebarPage::applyBookmark()
 275 {
 276     KBookmarkGroup root = DolphinSettings::instance().bookmarkManager()->root();
 277     KBookmark bookmark = root.first();
 278     while (!bookmark.isNull()) {
 279         if (m_shownUrl.equals(bookmark.url(), KUrl::CompareWithoutTrailingSlash)) {
 280             QString text("<b>");
 281             text.append(bookmark.text());
 282             text.append("</b>");
 283             m_name->setText(text);
 284
 285             KIconLoader iconLoader;
 286             QPixmap icon = iconLoader.loadIcon(bookmark.icon(),
 287                                                K3Icon::NoGroup,
 288                                                K3Icon::SizeEnormous);
 289             m_preview->setPixmap(icon);
 290             return true;
 291         }
 292         bookmark = root.next(bookmark);
 293     }
 294
 295     return false;
 296 }
 297
 298 void InfoSidebarPage::cancelRequest()
 299 {
 300     m_timer->stop();
 301     m_pendingPreview = false;
 302 }
 303
 304 void InfoSidebarPage::createMetaInfo()
 305 {
 306     beginInfoLines();
 307     DolphinView* view = mainWindow()->activeView();
 308     if (!view->hasSelection()) {
 309         KFileItem fileItem(S_IFDIR, KFileItem::Unknown, m_shownUrl);
 310         fileItem.refresh();
 311
 312         if (fileItem.isDir()) {
 313             addInfoLine(i18n("Type:"), i18n("Directory"));
 314         }
 315         showAnnotation(m_shownUrl);
 316     }
 317     else if (view->selectedItems().count() == 1) {
 318         KFileItem* fileItem = view->selectedItems()[0];
 319         addInfoLine(i18n("Type:"), fileItem->mimeComment());
 320
 321         QString sizeText(KIO::convertSize(fileItem->size()));
 322         addInfoLine(i18n("Size:"), sizeText);
 323         addInfoLine(i18n("Modified:"), fileItem->timeString());
 324
 325         const KFileMetaInfo& metaInfo = fileItem->metaInfo();
 326         if (metaInfo.isValid()) {
 327             QStringList keys = metaInfo.supportedKeys();
 328             for (QStringList::Iterator it = keys.begin(); it != keys.end(); ++it) {
 329                 if (showMetaInfo(*it)) {
 330                     KFileMetaInfoItem metaInfoItem = metaInfo.item(*it);
 331                     addInfoLine(*it, metaInfoItem.string());
 332                 }
 333             }
 334         }
 335         showAnnotation(fileItem->url());
 336     }
 337     else {
 338         showAnnotations(view->selectedItems().urlList());
 339         unsigned long int totSize = 0;
 340         foreach(KFileItem* item, view->selectedItems()) {
 341             totSize += item->size(); //FIXME what to do with directories ? (same with the one-item-selected-code), item->size() does not return the size of the content : not very instinctive for users
 342         }
 343         addInfoLine(i18n("Total size:"), KIO::convertSize(totSize));
 344     }
 345     endInfoLines();
 346 }
 347
 348 void InfoSidebarPage::beginInfoLines()
 349 {
 350     m_infoLines = QString("");
 351 }
 352
 353 void InfoSidebarPage::endInfoLines()
 354 {
 355     m_infos->setText(m_infoLines);
 356 }
 357
 358 bool InfoSidebarPage::showMetaInfo(const QString& key) const
 359 {
 360     // sorted list of keys, where it's data should be shown
 361     static const char* keys[] = {
 362         "Album",
 363         "Artist",
 364         "Author",
 365         "Bitrate",
 366         "Date",
 367         "Dimensions",
 368         "Genre",
 369         "Length",
 370         "Lines",
 371         "Pages",
 372         "Title",
 373         "Words"
 374     };
 375
 376     // do a binary search for the key...
 377     int top = 0;
 378     int bottom = sizeof(keys) / sizeof(char*) - 1;
 379     while (top < bottom) {
 380         const int middle = (top + bottom) / 2;
 381         const int result = key.compare(keys[middle]);
 382         if (result < 0) {
 383             bottom = middle - 1;
 384         }
 385         else if (result > 0) {
 386             top = middle + 1;
 387         }
 388         else {
 389             return true;
 390         }
 391     }
 392
 393     return false;
 394 }
 395
 396 void InfoSidebarPage::addInfoLine(const QString& labelText, const QString& infoText)
 397 {
 398     if (!m_infoLines.isEmpty())
 399         m_infoLines += "<br/>";
 400     m_infoLines += QString("<b>%1</b> %2").arg(labelText).arg(infoText);
 401 }
 402
 403 void InfoSidebarPage::insertActions()
 404 {
 405     // delete all existing action widgets
 406     // TODO: just use children() from QObject...
 407     Q3PtrListIterator<QWidget> deleteIter(m_actionWidgets);
 408     QWidget* widget = 0;
 409     while ((widget = deleteIter.current()) != 0) {
 410         widget->close();
 411         widget->deleteLater();
 412         ++deleteIter;
 413     }
 414
 415     m_actionWidgets.clear();
 416     m_actionsVector.clear();
 417
 418     int actionsIndex = 0;
 419
 420     // The algorithm for searching the available actions works on a list
 421     // of KFileItems. If no selection is given, a temporary KFileItem
 422     // by the given Url 'url' is created and added to the list.
 423     KFileItem fileItem(S_IFDIR, KFileItem::Unknown, m_shownUrl);
 424     KFileItemList itemList = mainWindow()->activeView()->selectedItems();
 425     if (itemList.isEmpty()) {
 426         fileItem.refresh();
 427         itemList.append(&fileItem);
 428     }
 429
 430     // 'itemList' contains now all KFileItems, where an item information should be shown.
 431     // TODO: the following algorithm is quite equal to DolphinContextMenu::insertActionItems().
 432     // It's open yet whether they should be merged or whether they have to work slightly different.
 433     QStringList dirs = KGlobal::dirs()->findDirs("data", "dolphin/servicemenus/");
 434     for (QStringList::ConstIterator dirIt = dirs.begin(); dirIt != dirs.end(); ++dirIt) {
 435         QDir dir(*dirIt);
 436         QStringList entries = dir.entryList(QStringList("*.desktop"), QDir::Files);
 437
 438         for (QStringList::ConstIterator entryIt = entries.begin(); entryIt != entries.end(); ++entryIt) {
 439             KConfigGroup cfg(KSharedConfig::openConfig( *dirIt + *entryIt, KConfig::OnlyLocal ), "Desktop Entry" );
 440             if ((cfg.hasKey("Actions") || cfg.hasKey("X-KDE-GetActionMenu")) && cfg.hasKey("ServiceTypes")) {
 441                 const QStringList types = cfg.readEntry("ServiceTypes", QStringList(), ',');
 442                 for (QStringList::ConstIterator it = types.begin(); it != types.end(); ++it) {
 443                     // check whether the mime type is equal or whether the
 444                     // mimegroup (e. g. image/*) is supported
 445
 446                     bool insert = false;
 447                     if ((*it) == "all/allfiles") {
 448                         // The service type is valid for all files, but not for directories.
 449                         // Check whether the selected items only consist of files...
 450                         QListIterator<KFileItem*> mimeIt(itemList);
 451                         insert = true;
 452                         while (insert && mimeIt.hasNext()) {
 453                             KFileItem* item = mimeIt.next();
 454                             insert = !item->isDir();
 455                         }
 456                     }
 457
 458                     if (!insert) {
 459                         // Check whether the MIME types of all selected files match
 460                         // to the mimetype of the service action. As soon as one MIME
 461                         // type does not match, no service menu is shown at all.
 462                         QListIterator<KFileItem*> mimeIt(itemList);
 463                         insert = true;
 464                         while (insert && mimeIt.hasNext()) {
 465                             KFileItem* item = mimeIt.next();
 466                             const QString mimeType(item->mimetype());
 467                             const QString mimeGroup(mimeType.left(mimeType.indexOf('/')));
 468
 469                             insert  = (*it == mimeType) ||
 470                                       ((*it).right(1) == "*") &&
 471                                       ((*it).left((*it).indexOf('/')) == mimeGroup);
 472                         }
 473                     }
 474
 475                     if (insert) {
 476                         const QString submenuName = cfg.readEntry( "X-KDE-Submenu" );
 477                         Q3PopupMenu* popup = 0;
 478                         if (!submenuName.isEmpty()) {
 479                             // create a sub menu containing all actions
 480                             popup = new Q3PopupMenu();
 481                             connect(popup, SIGNAL(activated(int)),
 482                                     this, SLOT(startService(int)));
 483
 484                             QPushButton* button = new QPushButton(submenuName, m_actionBox);
 485                             button->setFlat(true);
 486                             button->setMenu(popup);
 487                             button->show();
 488                             m_actionWidgets.append(button);
 489                         }
 490
 491                         Q3ValueList<KDEDesktopMimeType::Service> userServices =
 492                             KDEDesktopMimeType::userDefinedServices(*dirIt + *entryIt, true);
 493
 494                         // iterate through all actions and add them to a widget
 495                         Q3ValueList<KDEDesktopMimeType::Service>::Iterator serviceIt;
 496                         for (serviceIt = userServices.begin(); serviceIt != userServices.end(); ++serviceIt) {
 497                             KDEDesktopMimeType::Service service = (*serviceIt);
 498                             if (popup == 0) {
 499                                 ServiceButton* button = new ServiceButton(KIcon(service.m_strIcon),
 500                                                                           service.m_strName,
 501                                                                           m_actionBox,
 502                                                                           actionsIndex);
 503                                 connect(button, SIGNAL(requestServiceStart(int)),
 504                                         this, SLOT(startService(int)));
 505                                 m_actionWidgets.append(button);
 506                                 button->show();
 507                             }
 508                             else {
 509                                 popup->insertItem(KIcon(service.m_strIcon), service.m_strName, actionsIndex);
 510                             }
 511
 512                             m_actionsVector.append(service);
 513                             ++actionsIndex;
 514                         }
 515                     }
 516                 }
 517             }
 518         }
 519     }
 520 }
 521
 522 void InfoSidebarPage::showAnnotation(const KUrl& file)
 523 {
 524     if(m_metadata->storageUp()) {
 525         QString text = m_metadata->getAnnotation(file);
 526         if (!text.isEmpty()) {
 527             m_annotationLabel->show();
 528             m_annotationLabel->setText(QString("<b>%1</b> :<br/>%2").arg(i18n("Annotation")).arg(text));
 529             m_annotationButton->setText(i18n("Change annotation"));
 530         } else {
 531             m_annotationLabel->hide();
 532             m_annotationButton->setText(i18n("Annotate file"));
 533         }
 534     }
 535 }
 536
 537 void InfoSidebarPage::showAnnotations(const KUrl::List& files)
 538 {
 539     static unsigned int maxShownAnnot = 3;
 540     if (m_metadata->storageUp()) {
 541         bool hasAnnotation = false;
 542         unsigned int annotateNum = 0;
 543         QString firsts("<b>%1 :</b><br/>");
 544         firsts.arg(i18n("Annotations"));
 545         foreach (KUrl file, files) {
 546             QString annotation = m_metadata->getAnnotation(file);
 547             if (!annotation.isEmpty()) {
 548                 hasAnnotation = true;
 549                 if(annotateNum < maxShownAnnot) {
 550                     firsts += m_annotationLabel->fontMetrics().elidedText(QString("<b>%1</b> : %2<br/>").arg(file.fileName()).arg(annotation), Qt::ElideRight, width());
 551                     annotateNum++;
 552                 }
 553             }
 554         }
 555         if (hasAnnotation) {
 556             m_annotationLabel->show();
 557             m_annotationLabel->setText(firsts);
 558         } else m_annotationLabel->hide();
 559         m_annotationButton->setText(hasAnnotation ? i18n("Change annotations") : i18n("Annotate files"));
 560     }
 561 }
 562
 563 void InfoSidebarPage::changeAnnotation()
 564 {
 565     bool ok = false;
 566     KUrl::List files(mainWindow()->activeView()->selectedItems().urlList());
 567     QString name, old;
 568     if (files.isEmpty()) {
 569         files << m_shownUrl;
 570     }
 571     else if (files.count() == 1) {
 572         name = files[0].url();
 573         old = m_metadata->getAnnotation(files[0]);
 574     }
 575     else {
 576         name = QString("%1 files").arg(files.count());
 577         old = QString();
 578     }
 579     QString text = QInputDialog::getText(this, "Annotate", QString("Set annotation for %1").arg(name), QLineEdit::Normal, old, &ok);//FIXME temporary, must move to a real dialog
 580     if(ok) {
 581         foreach(KUrl file, files) {
 582             m_metadata->setAnnotation(file, text);
 583         }
 584         showAnnotation(files[0]);
 585     }
 586 }
 587
 588 ServiceButton::ServiceButton(const QIcon& icon,
 589                              const QString& text,
 590                              QWidget* parent,
 591                              int index) :
 592     QPushButton(icon, text, parent),
 593     m_hover(false),
 594     m_index(index)
 595 {
 596     setEraseColor(palette().brush(QPalette::Background).color());
 597     setFocusPolicy(Qt::NoFocus);
 598     connect(this, SIGNAL(released()),
 599             this, SLOT(slotReleased()));
 600 }
 601
 602 ServiceButton::~ServiceButton()
 603 {
 604 }
 605
 606 void ServiceButton::paintEvent(QPaintEvent* event)
 607 {
 608     QPainter painter(this);
 609     const int buttonWidth  = width();
 610     const int buttonHeight = height();
 611
 612     QColor backgroundColor;
 613     QColor foregroundColor;
 614     if (m_hover) {
 615         backgroundColor = KGlobalSettings::highlightColor();
 616         foregroundColor = KGlobalSettings::highlightedTextColor();
 617     }
 618     else {
 619         backgroundColor = palette().brush(QPalette::Background).color();
 620         foregroundColor = KGlobalSettings::buttonTextColor();
 621     }
 622
 623     // draw button background
 624     painter.setPen(Qt::NoPen);
 625     painter.setBrush(backgroundColor);
 626     painter.drawRect(0, 0, buttonWidth, buttonHeight);
 627
 628     const int spacing = KDialog::spacingHint();
 629
 630     // draw icon
 631     int x = spacing;
 632     const int y = (buttonHeight - K3Icon::SizeSmall) / 2;
 633     const QIcon &set = icon();
 634     if (!set.isNull()) {
 635         painter.drawPixmap(x, y, set.pixmap(QIcon::Small, QIcon::Normal));
 636     }
 637     x += K3Icon::SizeSmall + spacing;
 638
 639     // draw text
 640     painter.setPen(foregroundColor);
 641
 642     const int textWidth = buttonWidth - x;
 643     QFontMetrics fontMetrics(font());
 644     const bool clipped = fontMetrics.width(text()) >= textWidth;
 645     //const int align = clipped ? Qt::AlignVCenter : Qt::AlignCenter;
 646     painter.drawText(QRect(x, 0, textWidth, buttonHeight), Qt::AlignVCenter, text());
 647
 648     if (clipped) {
 649         // Blend the right area of the text with the background, as the
 650         // text is clipped.
 651         // TODO #1: use alpha blending in Qt4 instead of drawing the text that often
 652         // TODO #2: same code as in UrlNavigatorButton::drawButton() -> provide helper class?
 653         const int blendSteps = 16;
 654
 655         QColor blendColor(backgroundColor);
 656         const int redInc   = (foregroundColor.red()   - backgroundColor.red())   / blendSteps;
 657         const int greenInc = (foregroundColor.green() - backgroundColor.green()) / blendSteps;
 658         const int blueInc  = (foregroundColor.blue()  - backgroundColor.blue())  / blendSteps;
 659         for (int i = 0; i < blendSteps; ++i) {
 660             painter.setClipRect(QRect(x + textWidth - i, 0, 1, buttonHeight));
 661             painter.setPen(blendColor);
 662             painter.drawText(QRect(x, 0, textWidth, buttonHeight), Qt::AlignVCenter, text());
 663
 664             blendColor.setRgb(blendColor.red()   + redInc,
 665                               blendColor.green() + greenInc,
 666                               blendColor.blue()  + blueInc);
 667         }
 668     }
 669 }
 670
 671 void ServiceButton::enterEvent(QEvent* event)
 672 {
 673     QPushButton::enterEvent(event);
 674     m_hover = true;
 675     update();
 676 }
 677
 678 void ServiceButton::leaveEvent(QEvent* event)
 679 {
 680     QPushButton::leaveEvent(event);
 681     m_hover = false;
 682     update();
 683 }
 684
 685 void ServiceButton::slotReleased()
 686 {
 687     emit requestServiceStart(m_index);
 688 }
 689
 690 #include "infosidebarpage.moc"