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 <q3popupmenu.h>
  30 #include <qpainter.h>
  31 #include <qfontmetrics.h>
  32 #include <Q3ValueList>
  33 #include <QEvent>
  34 #include <QInputDialog>
  35
  36 #include <kbookmarkmanager.h>
  37 #include <klocale.h>
  38 #include <kstandarddirs.h>
  39 #include <kio/previewjob.h>
  40 #include <kfileitem.h>
  41 #include <kdialog.h>
  42 #include <kglobalsettings.h>
  43 #include <kfilemetainfo.h>
  44 #include <kvbox.h>
  45 #include <kseparator.h>
  46
  47 #include "dolphinmainwindow.h"
  48 #include "dolphinapplication.h"
  49 #include "pixmapviewer.h"
  50 #include "dolphinsettings.h"
  51 #include "metadataloader.h"
  52
  53 InfoSidebarPage::InfoSidebarPage(DolphinMainWindow* mainWindow, QWidget* parent) :
  54     SidebarPage(mainWindow, parent),
  55     m_multipleSelection(false),
  56     m_pendingPreview(false),
  57     m_timer(0),
  58     m_preview(0),
  59     m_name(0),
  60     m_infos(0),
  61     m_metadata(DolphinApplication::app()->metadataLoader())
  62 {
  63     const int spacing = KDialog::spacingHint();
  64
  65     m_timer = new QTimer(this);
  66     connect(m_timer, SIGNAL(timeout()),
  67             this, SLOT(slotTimeout()));
  68
  69     QVBoxLayout* layout = new QVBoxLayout;
  70     layout->setSpacing(spacing);
  71
  72     // preview
  73     m_preview = new PixmapViewer(this);
  74     m_preview->setMinimumWidth(K3Icon::SizeEnormous);
  75     m_preview->setFixedHeight(K3Icon::SizeEnormous);
  76
  77     // name
  78     m_name = new QLabel(this);
  79     m_name->setTextFormat(Qt::RichText);
  80     m_name->setAlignment(m_name->alignment() | Qt::AlignHCenter);
  81     QFontMetrics fontMetrics(m_name->font());
  82     m_name->setMinimumHeight(fontMetrics.height() * 3);
  83     m_name->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Maximum);
  84
  85     KSeparator* sep1 = new KSeparator(this);
  86
  87     // general information
  88     m_infos = new QLabel(this);
  89     m_infos->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
  90     m_infos->setTextFormat(Qt::RichText);
  91
  92     KSeparator* sep2 = new KSeparator(this);
  93
  94     // annotation
  95     KSeparator* sep3 = 0;
  96     if (m_metadata->storageUp()) {
  97         m_annotationLabel = new QLabel(this);
  98         m_annotationLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
  99         m_annotationLabel->setTextFormat(Qt::RichText);
 100         m_annotationLabel->setWordWrap(true);
 101         m_annotationButton = new QPushButton("", this);
 102         m_annotationButton->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
 103         connect(m_annotationButton, SIGNAL(released()), this, SLOT(changeAnnotation()));
 104         sep3 = new KSeparator(this);
 105     }
 106
 107     // actions
 108     m_actionBox = new KVBox(this);
 109     m_actionBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 110
 111     // Add a dummy widget with no restriction regarding a vertical resizing.
 112     // This assures that information is always top aligned.
 113     QWidget* dummy = new QWidget(this);
 114
 115     layout->addItem(new QSpacerItem(spacing, spacing, QSizePolicy::Preferred, QSizePolicy::Fixed));
 116     layout->addWidget(m_preview);
 117     layout->addWidget(m_name);
 118     layout->addWidget(sep1);
 119     layout->addWidget(m_infos);
 120     layout->addWidget(sep2);
 121     if (m_metadata->storageUp()) {
 122         layout->addWidget(m_annotationLabel);
 123         layout->addWidget(m_annotationButton);
 124         layout->addWidget(sep3);
 125     }
 126     layout->addWidget(m_actionBox);
 127     layout->addWidget(dummy);
 128     setLayout(layout);
 129     connect(mainWindow, SIGNAL(selectionChanged()),
 130             this, SLOT(showItemInfo()));
 131
 132     connectToActiveView();
 133 }
 134
 135 InfoSidebarPage::~InfoSidebarPage()
 136 {
 137 }
 138
 139 void InfoSidebarPage::activeViewChanged()
 140 {
 141     connectToActiveView();
 142 }
 143
 144 void InfoSidebarPage::requestDelayedItemInfo(const KUrl& url)
 145 {
 146     cancelRequest();
 147
 148     if (!url.isEmpty() && !m_multipleSelection) {
 149         m_urlCandidate = url;
 150         m_timer->setSingleShot(true);
 151         m_timer->start(300);
 152     }
 153 }
 154
 155 void InfoSidebarPage::requestItemInfo(const KUrl& url)
 156 {
 157     cancelRequest();
 158
 159     if (!url.isEmpty() && !m_multipleSelection) {
 160         m_shownUrl = url;
 161         showItemInfo();
 162     }
 163 }
 164
 165 void InfoSidebarPage::showItemInfo()
 166 {
 167     cancelRequest();
 168
 169     m_multipleSelection = false;
 170
 171     // show the preview...
 172     DolphinView* view = mainWindow()->activeView();
 173     const KFileItemList selectedItems = view->selectedItems();
 174     KUrl file;
 175     if (selectedItems.count() > 1) {
 176         m_multipleSelection = true;
 177     } else if(selectedItems.count() == 0) {
 178         file = m_shownUrl;
 179     } else {
 180         file = selectedItems[0]->url();
 181     }
 182     if (m_multipleSelection) {
 183         KIconLoader iconLoader;
 184         QPixmap icon = iconLoader.loadIcon("exec",
 185                                            K3Icon::NoGroup,
 186                                            K3Icon::SizeEnormous);
 187         m_preview->setPixmap(icon);
 188         m_name->setText(i18n("%1 items selected",selectedItems.count()));
 189     }
 190     else if (!applyBookmark(file)) {
 191         // try to get a preview pixmap from the item...
 192         KUrl::List list;
 193         list.append(file);
 194
 195         m_pendingPreview = true;
 196         m_preview->setPixmap(QPixmap());
 197
 198         KIO::PreviewJob* job = KIO::filePreview(list,
 199                                                 m_preview->width(),
 200                                                 K3Icon::SizeEnormous,
 201                                                 0,
 202                                                 0,
 203                                                 true,
 204                                                 false);
 205         job->setIgnoreMaximumSize(true);
 206
 207         connect(job, SIGNAL(gotPreview(const KFileItem*, const QPixmap&)),
 208                 this, SLOT(gotPreview(const KFileItem*, const QPixmap&)));
 209         connect(job, SIGNAL(failed(const KFileItem*)),
 210                 this, SLOT(slotPreviewFailed(const KFileItem*)));
 211
 212         QString text("<b>");
 213         text.append(file.fileName());
 214         text.append("</b>");
 215         m_name->setText(text);
 216     }
 217
 218     createMetaInfo();
 219     insertActions();
 220 }
 221
 222 void InfoSidebarPage::slotTimeout()
 223 {
 224     m_shownUrl = m_urlCandidate;
 225     showItemInfo();
 226 }
 227
 228 void InfoSidebarPage::slotPreviewFailed(const KFileItem* item)
 229 {
 230     m_pendingPreview = false;
 231     if (!applyBookmark(item->url())) {
 232         m_preview->setPixmap(item->pixmap(K3Icon::SizeEnormous));
 233     }
 234 }
 235
 236 void InfoSidebarPage::gotPreview(const KFileItem* /* item */,
 237                                  const QPixmap& pixmap)
 238 {
 239     if (m_pendingPreview) {
 240         m_preview->setPixmap(pixmap);
 241         m_pendingPreview = false;
 242     }
 243 }
 244
 245 void InfoSidebarPage::startService(int index)
 246 {
 247     DolphinView* view = mainWindow()->activeView();
 248     if (view->hasSelection()) {
 249         KUrl::List selectedUrls = view->selectedUrls();
 250         KDEDesktopMimeType::executeService(selectedUrls, m_actionsVector[index]);
 251     }
 252     else {
 253         KDEDesktopMimeType::executeService(m_shownUrl, m_actionsVector[index]);
 254     }
 255 }
 256
 257 void InfoSidebarPage::connectToActiveView()
 258 {
 259     cancelRequest();
 260
 261     DolphinView* view = mainWindow()->activeView();
 262     connect(view, SIGNAL(requestItemInfo(const KUrl&)),
 263             this, SLOT(requestDelayedItemInfo(const KUrl&)));
 264     connect(view, SIGNAL(urlChanged(const KUrl&)),
 265             this, SLOT(requestItemInfo(const KUrl&)));
 266
 267     m_shownUrl = view->url();
 268     showItemInfo();
 269 }
 270
 271 bool InfoSidebarPage::applyBookmark(const KUrl& url)
 272 {
 273     KBookmarkGroup root = DolphinSettings::instance().bookmarkManager()->root();
 274     KBookmark bookmark = root.first();
 275     while (!bookmark.isNull()) {
 276         if (url.equals(bookmark.url(), KUrl::CompareWithoutTrailingSlash)) {
 277             QString text("<b>");
 278             text.append(bookmark.text());
 279             text.append("</b>");
 280             m_name->setText(text);
 281
 282             KIconLoader iconLoader;
 283             QPixmap icon = iconLoader.loadIcon(bookmark.icon(),
 284                                                K3Icon::NoGroup,
 285                                                K3Icon::SizeEnormous);
 286             m_preview->setPixmap(icon);
 287             return true;
 288         }
 289         bookmark = root.next(bookmark);
 290     }
 291
 292     return false;
 293 }
 294
 295 void InfoSidebarPage::cancelRequest()
 296 {
 297     m_timer->stop();
 298     m_pendingPreview = false;
 299 }
 300
 301 void InfoSidebarPage::createMetaInfo()
 302 {
 303     beginInfoLines();
 304     DolphinView* view = mainWindow()->activeView();
 305     if (!view->hasSelection()) {
 306         KFileItem fileItem(S_IFDIR, KFileItem::Unknown, m_shownUrl);
 307         fileItem.refresh();
 308
 309         if (fileItem.isDir()) {
 310             addInfoLine(i18n("Type:"), i18n("Directory"));
 311         }
 312         showAnnotation(m_shownUrl);
 313     }
 314     else if (view->selectedItems().count() == 1) {
 315         KFileItem* fileItem = view->selectedItems()[0];
 316         addInfoLine(i18n("Type:"), fileItem->mimeComment());
 317
 318         QString sizeText(KIO::convertSize(fileItem->size()));
 319         addInfoLine(i18n("Size:"), sizeText);
 320         addInfoLine(i18n("Modified:"), fileItem->timeString());
 321
 322         const KFileMetaInfo& metaInfo = fileItem->metaInfo();
 323         if (metaInfo.isValid()) {
 324             QStringList keys = metaInfo.supportedKeys();
 325             for (QStringList::Iterator it = keys.begin(); it != keys.end(); ++it) {
 326                 if (showMetaInfo(*it)) {
 327                     KFileMetaInfoItem metaInfoItem = metaInfo.item(*it);
 328                     addInfoLine(*it, metaInfoItem.value().toString());
 329                 }
 330             }
 331         }
 332         showAnnotation(fileItem->url());
 333     }
 334     else {
 335         showAnnotations(view->selectedItems().urlList());
 336         unsigned long int totSize = 0;
 337         foreach(KFileItem* item, view->selectedItems()) {
 338             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
 339         }
 340         addInfoLine(i18n("Total size:"), KIO::convertSize(totSize));
 341     }
 342     endInfoLines();
 343 }
 344
 345 void InfoSidebarPage::beginInfoLines()
 346 {
 347     m_infoLines = QString("");
 348 }
 349
 350 void InfoSidebarPage::endInfoLines()
 351 {
 352     m_infos->setText(m_infoLines);
 353 }
 354
 355 bool InfoSidebarPage::showMetaInfo(const QString& key) const
 356 {
 357     // sorted list of keys, where it's data should be shown
 358     static const char* keys[] = {
 359         "Album",
 360         "Artist",
 361         "Author",
 362         "Bitrate",
 363         "Date",
 364         "Dimensions",
 365         "Genre",
 366         "Length",
 367         "Lines",
 368         "Pages",
 369         "Title",
 370         "Words"
 371     };
 372
 373     // do a binary search for the key...
 374     int top = 0;
 375     int bottom = sizeof(keys) / sizeof(char*) - 1;
 376     while (top < bottom) {
 377         const int middle = (top + bottom) / 2;
 378         const int result = key.compare(keys[middle]);
 379         if (result < 0) {
 380             bottom = middle - 1;
 381         }
 382         else if (result > 0) {
 383             top = middle + 1;
 384         }
 385         else {
 386             return true;
 387         }
 388     }
 389
 390     return false;
 391 }
 392
 393 void InfoSidebarPage::addInfoLine(const QString& labelText, const QString& infoText)
 394 {
 395     if (!m_infoLines.isEmpty())
 396         m_infoLines += "<br/>";
 397     m_infoLines += QString("<b>%1</b> %2").arg(labelText).arg(infoText);
 398 }
 399
 400 void InfoSidebarPage::insertActions()
 401 {
 402     // delete all existing action widgets
 403     // TODO: just use children() from QObject...
 404     Q3PtrListIterator<QWidget> deleteIter(m_actionWidgets);
 405     QWidget* widget = 0;
 406     while ((widget = deleteIter.current()) != 0) {
 407         widget->close();
 408         widget->deleteLater();
 409         ++deleteIter;
 410     }
 411
 412     m_actionWidgets.clear();
 413     m_actionsVector.clear();
 414
 415     int actionsIndex = 0;
 416
 417     // The algorithm for searching the available actions works on a list
 418     // of KFileItems. If no selection is given, a temporary KFileItem
 419     // by the given Url 'url' is created and added to the list.
 420     KFileItem fileItem(S_IFDIR, KFileItem::Unknown, m_shownUrl);
 421     KFileItemList itemList = mainWindow()->activeView()->selectedItems();
 422     if (itemList.isEmpty()) {
 423         fileItem.refresh();
 424         itemList.append(&fileItem);
 425     }
 426
 427     // 'itemList' contains now all KFileItems, where an item information should be shown.
 428     // TODO: the following algorithm is quite equal to DolphinContextMenu::insertActionItems().
 429     // It's open yet whether they should be merged or whether they have to work slightly different.
 430     QStringList dirs = KGlobal::dirs()->findDirs("data", "dolphin/servicemenus/");
 431     for (QStringList::ConstIterator dirIt = dirs.begin(); dirIt != dirs.end(); ++dirIt) {
 432         QDir dir(*dirIt);
 433         QStringList entries = dir.entryList(QStringList("*.desktop"), QDir::Files);
 434
 435         for (QStringList::ConstIterator entryIt = entries.begin(); entryIt != entries.end(); ++entryIt) {
 436             KConfigGroup cfg(KSharedConfig::openConfig( *dirIt + *entryIt, KConfig::OnlyLocal ), "Desktop Entry" );
 437             if ((cfg.hasKey("Actions") || cfg.hasKey("X-KDE-GetActionMenu")) && cfg.hasKey("ServiceTypes")) {
 438                 const QStringList types = cfg.readEntry("ServiceTypes", QStringList(), ',');
 439                 for (QStringList::ConstIterator it = types.begin(); it != types.end(); ++it) {
 440                     // check whether the mime type is equal or whether the
 441                     // mimegroup (e. g. image/*) is supported
 442
 443                     bool insert = false;
 444                     if ((*it) == "all/allfiles") {
 445                         // The service type is valid for all files, but not for directories.
 446                         // Check whether the selected items only consist of files...
 447                         QListIterator<KFileItem*> mimeIt(itemList);
 448                         insert = true;
 449                         while (insert && mimeIt.hasNext()) {
 450                             KFileItem* item = mimeIt.next();
 451                             insert = !item->isDir();
 452                         }
 453                     }
 454
 455                     if (!insert) {
 456                         // Check whether the MIME types of all selected files match
 457                         // to the mimetype of the service action. As soon as one MIME
 458                         // type does not match, no service menu is shown at all.
 459                         QListIterator<KFileItem*> mimeIt(itemList);
 460                         insert = true;
 461                         while (insert && mimeIt.hasNext()) {
 462                             KFileItem* item = mimeIt.next();
 463                             const QString mimeType(item->mimetype());
 464                             const QString mimeGroup(mimeType.left(mimeType.indexOf('/')));
 465
 466                             insert  = (*it == mimeType) ||
 467                                       ((*it).right(1) == "*") &&
 468                                       ((*it).left((*it).indexOf('/')) == mimeGroup);
 469                         }
 470                     }
 471
 472                     if (insert) {
 473                         const QString submenuName = cfg.readEntry( "X-KDE-Submenu" );
 474                         Q3PopupMenu* popup = 0;
 475                         if (!submenuName.isEmpty()) {
 476                             // create a sub menu containing all actions
 477                             popup = new Q3PopupMenu();
 478                             connect(popup, SIGNAL(activated(int)),
 479                                     this, SLOT(startService(int)));
 480
 481                             QPushButton* button = new QPushButton(submenuName, m_actionBox);
 482                             button->setFlat(true);
 483                             button->setMenu(popup);
 484                             button->show();
 485                             m_actionWidgets.append(button);
 486                         }
 487
 488                         Q3ValueList<KDEDesktopMimeType::Service> userServices =
 489                             KDEDesktopMimeType::userDefinedServices(*dirIt + *entryIt, true);
 490
 491                         // iterate through all actions and add them to a widget
 492                         Q3ValueList<KDEDesktopMimeType::Service>::Iterator serviceIt;
 493                         for (serviceIt = userServices.begin(); serviceIt != userServices.end(); ++serviceIt) {
 494                             KDEDesktopMimeType::Service service = (*serviceIt);
 495                             if (popup == 0) {
 496                                 ServiceButton* button = new ServiceButton(KIcon(service.m_strIcon),
 497                                                                           service.m_strName,
 498                                                                           m_actionBox,
 499                                                                           actionsIndex);
 500                                 connect(button, SIGNAL(requestServiceStart(int)),
 501                                         this, SLOT(startService(int)));
 502                                 m_actionWidgets.append(button);
 503                                 button->show();
 504                             }
 505                             else {
 506                                 popup->insertItem(KIcon(service.m_strIcon), service.m_strName, actionsIndex);
 507                             }
 508
 509                             m_actionsVector.append(service);
 510                             ++actionsIndex;
 511                         }
 512                     }
 513                 }
 514             }
 515         }
 516     }
 517 }
 518
 519 void InfoSidebarPage::showAnnotation(const KUrl& file)
 520 {
 521     if(m_metadata->storageUp()) {
 522         QString text = m_metadata->annotation(file);
 523         if (!text.isEmpty()) {
 524             m_annotationLabel->show();
 525             m_annotationLabel->setText(QString("<b>%1</b> :<br/>%2").arg(i18n("Annotation")).arg(text));
 526             m_annotationButton->setText(i18n("Change annotation"));
 527         } else {
 528             m_annotationLabel->hide();
 529             m_annotationButton->setText(i18n("Annotate file"));
 530         }
 531     }
 532 }
 533
 534 void InfoSidebarPage::showAnnotations(const KUrl::List& files)
 535 {
 536     if (m_metadata->storageUp()) {
 537         bool hasAnnotation = false;
 538         unsigned int annotateNum = 0;
 539         QString firsts = QString("<b>%1 :</b><br/>").arg(i18n("Annotations"));
 540         foreach (KUrl file, files) {
 541             QString annotation = m_metadata->annotation(file);
 542             if (!annotation.isEmpty()) {
 543                 hasAnnotation = true;
 544                 if (annotateNum < 3) {
 545                     // don't show more than 3 annotations
 546                     firsts += m_annotationLabel->fontMetrics().elidedText(QString("<b>%1</b> : %2<br/>").arg(file.fileName()).arg(annotation), Qt::ElideRight, width());//FIXME not really the good method, does not handle resizing ...
 547                     annotateNum++;
 548                 }
 549             }
 550         }
 551         if (hasAnnotation) {
 552             m_annotationLabel->show();
 553             m_annotationLabel->setText(firsts);
 554         }
 555         else {
 556             m_annotationLabel->hide();
 557         }
 558         m_annotationButton->setText(hasAnnotation ? i18n("Change annotations") : i18n("Annotate files"));
 559     }
 560 }
 561
 562 void InfoSidebarPage::changeAnnotation()
 563 {
 564     bool ok = false;
 565     KUrl::List files(mainWindow()->activeView()->selectedItems().urlList());
 566     QString name, old;
 567     if (files.isEmpty()) {
 568         files << m_shownUrl;
 569     }
 570     else if (files.count() == 1) {
 571         name = files[0].url();
 572         old = m_metadata->annotation(files[0]);
 573     }
 574     else {
 575         name = QString("%1 files").arg(files.count());
 576         old = QString();
 577     }
 578     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
 579     if(ok) {
 580         foreach(KUrl file, files) {
 581             m_metadata->setAnnotation(file, text);
 582         }
 583         showAnnotation(files[0]);
 584     }
 585 }
 586
 587 ServiceButton::ServiceButton(const QIcon& icon,
 588                              const QString& text,
 589                              QWidget* parent,
 590                              int index) :
 591     QPushButton(icon, text, parent),
 592     m_hover(false),
 593     m_index(index)
 594 {
 595     setEraseColor(palette().brush(QPalette::Background).color());
 596     setFocusPolicy(Qt::NoFocus);
 597     connect(this, SIGNAL(released()),
 598             this, SLOT(slotReleased()));
 599 }
 600
 601 ServiceButton::~ServiceButton()
 602 {
 603 }
 604
 605 void ServiceButton::paintEvent(QPaintEvent* event)
 606 {
 607     Q_UNUSED(event);
 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"