src/kitemviews/kstandarditemlistwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2012 by Peter Penz <peter.penz19@gmail.com>             *
   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 "kstandarditemlistwidget.h"
  21
  22 #include "kfileitemlistview.h"
  23 #include "kfileitemmodel.h"
  24
  25 #include <KIcon>
  26 #include <KIconEffect>
  27 #include <KIconLoader>
  28 #include <KLocale>
  29 #include <kratingpainter.h>
  30 #include <KStringHandler>
  31 #include <KDebug>
  32
  33 #include "private/kfileitemclipboard.h"
  34 #include "private/kitemlistroleeditor.h"
  35 #include "private/kpixmapmodifier.h"
  36
  37 #include <QFontMetricsF>
  38 #include <QGraphicsScene>
  39 #include <QGraphicsSceneResizeEvent>
  40 #include <QGraphicsView>
  41 #include <QPainter>
  42 #include <QStyleOption>
  43 #include <QTextLayout>
  44 #include <QTextLine>
  45 #include <QPixmapCache>
  46
  47 // #define KSTANDARDITEMLISTWIDGET_DEBUG
  48
  49 KStandardItemListWidgetInformant::KStandardItemListWidgetInformant() :
  50     KItemListWidgetInformant()
  51 {
  52 }
  53
  54 KStandardItemListWidgetInformant::~KStandardItemListWidgetInformant()
  55 {
  56 }
  57
  58 QSizeF KStandardItemListWidgetInformant::itemSizeHint(int index, const KItemListView* view) const
  59 {
  60     const QHash<QByteArray, QVariant> values = view->model()->data(index);
  61     const KItemListStyleOption& option = view->styleOption();
  62     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
  63
  64     switch (static_cast<const KStandardItemListView*>(view)->itemLayout()) {
  65     case KStandardItemListWidget::IconsLayout: {
  66         const QString text = KStringHandler::preProcessWrap(values["text"].toString());
  67
  68         const qreal itemWidth = view->itemSize().width();
  69         const qreal maxWidth = itemWidth - 2 * option.padding;
  70         QTextLine line;
  71
  72         // Calculate the number of lines required for wrapping the name
  73         QTextOption textOption(Qt::AlignHCenter);
  74         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
  75
  76         qreal textHeight = 0;
  77         QTextLayout layout(text, option.font);
  78         layout.setTextOption(textOption);
  79         layout.beginLayout();
  80         while ((line = layout.createLine()).isValid()) {
  81             line.setLineWidth(maxWidth);
  82             line.naturalTextWidth();
  83             textHeight += line.height();
  84         }
  85         layout.endLayout();
  86
  87         // Add one line for each additional information
  88         textHeight += additionalRolesCount * option.fontMetrics.lineSpacing();
  89
  90         const qreal maxTextHeight = option.maxTextSize.height();
  91         if (maxTextHeight > 0 && textHeight > maxTextHeight) {
  92             textHeight = maxTextHeight;
  93         }
  94
  95         return QSizeF(itemWidth, textHeight + option.iconSize + option.padding * 3);
  96     }
  97
  98     case KStandardItemListWidget::CompactLayout: {
  99         // For each row exactly one role is shown. Calculate the maximum required width that is necessary
 100         // to show all roles without horizontal clipping.
 101         qreal maximumRequiredWidth = 0.0;
 102
 103         foreach (const QByteArray& role, view->visibleRoles()) {
 104             const QString text = roleText(role, values);
 105             const qreal requiredWidth = option.fontMetrics.width(text);
 106             maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth);
 107         }
 108
 109         qreal width = option.padding * 4 + option.iconSize + maximumRequiredWidth;
 110         const qreal maxWidth = option.maxTextSize.width();
 111         if (maxWidth > 0 && width > maxWidth) {
 112             width = maxWidth;
 113         }
 114         const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * option.fontMetrics.lineSpacing());
 115         return QSizeF(width, height);
 116     }
 117
 118     case KStandardItemListWidget::DetailsLayout: {
 119         const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 120         return QSizeF(-1, height);
 121     }
 122
 123     default:
 124         Q_ASSERT(false);
 125         break;
 126     }
 127
 128     return QSize();
 129 }
 130
 131 qreal KStandardItemListWidgetInformant::preferredRoleColumnWidth(const QByteArray& role,
 132                                                                  int index,
 133                                                                  const KItemListView* view) const
 134 {
 135     const QHash<QByteArray, QVariant> values = view->model()->data(index);
 136     const KItemListStyleOption& option = view->styleOption();
 137
 138     const QString text = roleText(role, values);
 139     qreal width = KStandardItemListWidget::columnPadding(option);
 140
 141     if (role == "rating") {
 142         width += KStandardItemListWidget::preferredRatingSize(option).width();
 143     } else {
 144         width += option.fontMetrics.width(text);
 145
 146         if (role == "text") {
 147             if (view->supportsItemExpanding()) {
 148                 // Increase the width by the expansion-toggle and the current expansion level
 149                 const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 150                 const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 151                 width += (expandedParentsCount + 1) * height;
 152             }
 153
 154             // Increase the width by the required space for the icon
 155             width += option.padding * 2 + option.iconSize;
 156         }
 157     }
 158
 159     return width;
 160 }
 161
 162 QString KStandardItemListWidgetInformant::roleText(const QByteArray& role,
 163                                                    const QHash<QByteArray, QVariant>& values) const
 164 {
 165     if (role == "rating") {
 166         // Always use an empty text, as the rating is shown by the image m_rating.
 167         return QString();
 168     }
 169     return values.value(role).toString();
 170 }
 171
 172 KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
 173     KItemListWidget(informant, parent),
 174     m_isCut(false),
 175     m_isHidden(false),
 176     m_customizedFont(),
 177     m_customizedFontMetrics(m_customizedFont),
 178     m_isExpandable(false),
 179     m_supportsItemExpanding(false),
 180     m_dirtyLayout(true),
 181     m_dirtyContent(true),
 182     m_dirtyContentRoles(),
 183     m_layout(IconsLayout),
 184     m_pixmapPos(),
 185     m_pixmap(),
 186     m_scaledPixmapSize(),
 187     m_iconRect(),
 188     m_hoverPixmap(),
 189     m_textInfo(),
 190     m_textRect(),
 191     m_sortedVisibleRoles(),
 192     m_expansionArea(),
 193     m_customTextColor(),
 194     m_additionalInfoTextColor(),
 195     m_overlay(),
 196     m_rating(),
 197     m_roleEditor(0)
 198 {
 199 }
 200
 201 KStandardItemListWidget::~KStandardItemListWidget()
 202 {
 203     qDeleteAll(m_textInfo);
 204     m_textInfo.clear();
 205
 206     delete m_roleEditor;
 207 }
 208
 209 void KStandardItemListWidget::setLayout(Layout layout)
 210 {
 211     if (m_layout != layout) {
 212         m_layout = layout;
 213         m_dirtyLayout = true;
 214         updateAdditionalInfoTextColor();
 215         update();
 216     }
 217 }
 218
 219 KStandardItemListWidget::Layout KStandardItemListWidget::layout() const
 220 {
 221     return m_layout;
 222 }
 223
 224 void KStandardItemListWidget::setSupportsItemExpanding(bool supportsItemExpanding)
 225 {
 226     if (m_supportsItemExpanding != supportsItemExpanding) {
 227         m_supportsItemExpanding = supportsItemExpanding;
 228         m_dirtyLayout = true;
 229         update();
 230     }
 231 }
 232
 233 bool KStandardItemListWidget::supportsItemExpanding() const
 234 {
 235     return m_supportsItemExpanding;
 236 }
 237
 238 void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
 239 {
 240     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 241
 242     KItemListWidget::paint(painter, option, widget);
 243
 244     if (!m_expansionArea.isEmpty()) {
 245         drawSiblingsInformation(painter);
 246     }
 247
 248     const KItemListStyleOption& itemListStyleOption = styleOption();
 249     if (isHovered()) {
 250         // Blend the unhovered and hovered pixmap if the hovering
 251         // animation is ongoing
 252         if (hoverOpacity() < 1.0) {
 253             drawPixmap(painter, m_pixmap);
 254         }
 255
 256         const qreal opacity = painter->opacity();
 257         painter->setOpacity(hoverOpacity() * opacity);
 258         drawPixmap(painter, m_hoverPixmap);
 259         painter->setOpacity(opacity);
 260     } else {
 261         drawPixmap(painter, m_pixmap);
 262     }
 263
 264     painter->setFont(m_customizedFont);
 265     painter->setPen(m_isHidden ? m_additionalInfoTextColor : textColor());
 266     const TextInfo* textInfo = m_textInfo.value("text");
 267
 268     if (!textInfo) {
 269         // It seems that we can end up here even if m_textInfo does not contain
 270         // the key "text", see bug 306167. According to triggerCacheRefreshing(),
 271         // this can only happen if the index is negative. This can happen when
 272         // the item is about to be removed, see KItemListView::slotItemsRemoved().
 273         // TODO: try to reproduce the crash and find a better fix.
 274         return;
 275     }
 276
 277     painter->drawStaticText(textInfo->pos, textInfo->staticText);
 278
 279     bool clipAdditionalInfoBounds = false;
 280     if (m_supportsItemExpanding) {
 281         // Prevent a possible overlapping of the additional-information texts
 282         // with the icon. This can happen if the user has minimized the width
 283         // of the name-column to a very small value.
 284         const qreal minX = m_pixmapPos.x() + m_pixmap.width() + 4 * itemListStyleOption.padding;
 285         if (textInfo->pos.x() + columnWidth("text") > minX) {
 286             clipAdditionalInfoBounds = true;
 287             painter->save();
 288             painter->setClipRect(minX, 0, size().width() - minX, size().height(), Qt::IntersectClip);
 289         }
 290     }
 291
 292     painter->setPen(m_additionalInfoTextColor);
 293     painter->setFont(m_customizedFont);
 294
 295     for (int i = 1; i < m_sortedVisibleRoles.count(); ++i) {
 296         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles[i]);
 297         painter->drawStaticText(textInfo->pos, textInfo->staticText);
 298     }
 299
 300     if (!m_rating.isNull()) {
 301         const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 302         QPointF pos = ratingTextInfo->pos;
 303         const Qt::Alignment align = ratingTextInfo->staticText.textOption().alignment();
 304         if (align & Qt::AlignHCenter) {
 305             pos.rx() += (size().width() - m_rating.width()) / 2 - 2;
 306         }
 307         painter->drawPixmap(pos, m_rating);
 308     }
 309
 310     if (clipAdditionalInfoBounds) {
 311         painter->restore();
 312     }
 313
 314 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
 315     painter->setBrush(Qt::NoBrush);
 316     painter->setPen(Qt::green);
 317     painter->drawRect(m_iconRect);
 318
 319     painter->setPen(Qt::red);
 320     painter->drawText(QPointF(0, m_customizedFontMetrics.height()), QString::number(index()));
 321     painter->drawRect(rect());
 322 #endif
 323 }
 324
 325 QRectF KStandardItemListWidget::iconRect() const
 326 {
 327     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 328     return m_iconRect;
 329 }
 330
 331 QRectF KStandardItemListWidget::textRect() const
 332 {
 333     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 334     return m_textRect;
 335 }
 336
 337 QRectF KStandardItemListWidget::textFocusRect() const
 338 {
 339     // In the compact- and details-layout a larger textRect() is returned to be aligned
 340     // with the iconRect(). This is useful to have a larger selection/hover-area
 341     // when having a quite large icon size but only one line of text. Still the
 342     // focus rectangle should be shown as narrow as possible around the text.
 343
 344     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 345
 346     switch (m_layout) {
 347     case CompactLayout: {
 348         QRectF rect = m_textRect;
 349         const TextInfo* topText    = m_textInfo.value(m_sortedVisibleRoles.first());
 350         const TextInfo* bottomText = m_textInfo.value(m_sortedVisibleRoles.last());
 351         rect.setTop(topText->pos.y());
 352         rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height());
 353         return rect;
 354     }
 355
 356     case DetailsLayout: {
 357         QRectF rect = m_textRect;
 358         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles.first());
 359         rect.setTop(textInfo->pos.y());
 360         rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height());
 361
 362         const KItemListStyleOption& option = styleOption();
 363         if (option.extendedSelectionRegion) {
 364             const QString text = textInfo->staticText.text();
 365             rect.setWidth(m_customizedFontMetrics.width(text) + 2 * option.padding);
 366         }
 367
 368         return rect;
 369     }
 370
 371     default:
 372         break;
 373     }
 374
 375     return m_textRect;
 376 }
 377
 378 QRectF KStandardItemListWidget::expansionToggleRect() const
 379 {
 380     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 381     return m_isExpandable ? m_expansionArea : QRectF();
 382 }
 383
 384 QRectF KStandardItemListWidget::selectionToggleRect() const
 385 {
 386     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 387
 388     const int iconHeight = styleOption().iconSize;
 389
 390     int toggleSize = KIconLoader::SizeSmall;
 391     if (iconHeight >= KIconLoader::SizeEnormous) {
 392         toggleSize = KIconLoader::SizeMedium;
 393     } else if (iconHeight >= KIconLoader::SizeLarge) {
 394         toggleSize = KIconLoader::SizeSmallMedium;
 395     }
 396
 397     QPointF pos = iconRect().topLeft();
 398
 399     // If the selection toggle has a very small distance to the
 400     // widget borders, the size of the selection toggle will get
 401     // increased to prevent an accidental clicking of the item
 402     // when trying to hit the toggle.
 403     const int widgetHeight = size().height();
 404     const int widgetWidth = size().width();
 405     const int minMargin = 2;
 406
 407     if (toggleSize + minMargin * 2 >= widgetHeight) {
 408         pos.rx() -= (widgetHeight - toggleSize) / 2;
 409         toggleSize = widgetHeight;
 410         pos.setY(0);
 411     }
 412     if (toggleSize + minMargin * 2 >= widgetWidth) {
 413         pos.ry() -= (widgetWidth - toggleSize) / 2;
 414         toggleSize = widgetWidth;
 415         pos.setX(0);
 416     }
 417
 418     return QRectF(pos, QSizeF(toggleSize, toggleSize));
 419 }
 420
 421 QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option,
 422                                                   QWidget* widget)
 423 {
 424     QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget);
 425     if (m_layout != DetailsLayout) {
 426         return pixmap;
 427     }
 428
 429     // Only return the content of the text-column as pixmap
 430     const int leftClip = m_pixmapPos.x();
 431
 432     const TextInfo* textInfo = m_textInfo.value("text");
 433     const int rightClip = textInfo->pos.x() +
 434                           textInfo->staticText.size().width() +
 435                           2 * styleOption().padding;
 436
 437     QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height());
 438     clippedPixmap.fill(Qt::transparent);
 439
 440     QPainter painter(&clippedPixmap);
 441     painter.drawPixmap(-leftClip, 0, pixmap);
 442
 443     return clippedPixmap;
 444 }
 445
 446
 447 KItemListWidgetInformant* KStandardItemListWidget::createInformant()
 448 {
 449     return new KStandardItemListWidgetInformant();
 450 }
 451
 452 void KStandardItemListWidget::invalidateCache()
 453 {
 454     m_dirtyLayout = true;
 455     m_dirtyContent = true;
 456 }
 457
 458 void KStandardItemListWidget::refreshCache()
 459 {
 460 }
 461
 462 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray& role) const
 463 {
 464     Q_UNUSED(role);
 465     return false;
 466 }
 467
 468 bool KStandardItemListWidget::isHidden() const
 469 {
 470     return false;
 471 }
 472
 473 QFont KStandardItemListWidget::customizedFont(const QFont& baseFont) const
 474 {
 475     return baseFont;
 476 }
 477
 478 QPalette::ColorRole KStandardItemListWidget::normalTextColorRole() const
 479 {
 480     return QPalette::Text;
 481 }
 482
 483 void KStandardItemListWidget::setTextColor(const QColor& color)
 484 {
 485     if (color != m_customTextColor) {
 486         m_customTextColor = color;
 487         updateAdditionalInfoTextColor();
 488         update();
 489     }
 490 }
 491
 492 QColor KStandardItemListWidget::textColor() const
 493 {
 494     if (m_customTextColor.isValid() && !isSelected()) {
 495         return m_customTextColor;
 496     }
 497
 498     const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
 499     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : normalTextColorRole();
 500     return styleOption().palette.color(group, role);
 501 }
 502
 503 void KStandardItemListWidget::setOverlay(const QPixmap& overlay)
 504 {
 505     m_overlay = overlay;
 506     m_dirtyContent = true;
 507     update();
 508 }
 509
 510 QPixmap KStandardItemListWidget::overlay() const
 511 {
 512     return m_overlay;
 513 }
 514
 515
 516 QString KStandardItemListWidget::roleText(const QByteArray& role,
 517                                           const QHash<QByteArray, QVariant>& values) const
 518 {
 519     return static_cast<const KStandardItemListWidgetInformant*>(informant())->roleText(role, values);
 520 }
 521
 522 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
 523                                           const QSet<QByteArray>& roles)
 524 {
 525     Q_UNUSED(current);
 526
 527     m_dirtyContent = true;
 528
 529     QSet<QByteArray> dirtyRoles;
 530     if (roles.isEmpty()) {
 531         dirtyRoles = visibleRoles().toSet();
 532     } else {
 533         dirtyRoles = roles;
 534     }
 535
 536     // The icon-state might depend from other roles and hence is
 537     // marked as dirty whenever a role has been changed
 538     dirtyRoles.insert("iconPixmap");
 539     dirtyRoles.insert("iconName");
 540
 541     QSetIterator<QByteArray> it(dirtyRoles);
 542     while (it.hasNext()) {
 543         const QByteArray& role = it.next();
 544         m_dirtyContentRoles.insert(role);
 545     }
 546 }
 547
 548 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
 549                                               const QList<QByteArray>& previous)
 550 {
 551     Q_UNUSED(previous);
 552     m_sortedVisibleRoles = current;
 553     m_dirtyLayout = true;
 554 }
 555
 556 void KStandardItemListWidget::columnWidthChanged(const QByteArray& role,
 557                                              qreal current,
 558                                              qreal previous)
 559 {
 560     Q_UNUSED(role);
 561     Q_UNUSED(current);
 562     Q_UNUSED(previous);
 563     m_dirtyLayout = true;
 564 }
 565
 566 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
 567                                              const KItemListStyleOption& previous)
 568 {
 569     Q_UNUSED(current);
 570     Q_UNUSED(previous);
 571     updateAdditionalInfoTextColor();
 572     m_dirtyLayout = true;
 573 }
 574
 575 void KStandardItemListWidget::hoveredChanged(bool hovered)
 576 {
 577     Q_UNUSED(hovered);
 578     m_dirtyLayout = true;
 579 }
 580
 581 void KStandardItemListWidget::selectedChanged(bool selected)
 582 {
 583     Q_UNUSED(selected);
 584     updateAdditionalInfoTextColor();
 585     m_dirtyContent = true;
 586 }
 587
 588 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
 589 {
 590     Q_UNUSED(current);
 591     Q_UNUSED(previous);
 592     m_dirtyLayout = true;
 593 }
 594
 595 int KStandardItemListWidget::selectionLength(const QString& text) const
 596 {
 597     return text.length();
 598 }
 599
 600 void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
 601 {
 602     Q_UNUSED(previous);
 603
 604    QGraphicsView* parent = scene()->views()[0];
 605    if (current.isEmpty() || !parent || current != "text") {
 606         if (m_roleEditor) {
 607             emit roleEditingCanceled(index(), current, data().value(current));
 608
 609             disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 610                        this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 611             disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 612                        this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 613             m_roleEditor->deleteLater();
 614             m_roleEditor = 0;
 615         }
 616         return;
 617     }
 618
 619     Q_ASSERT(!m_roleEditor);
 620
 621     const TextInfo* textInfo = m_textInfo.value("text");
 622
 623     m_roleEditor = new KItemListRoleEditor(parent);
 624     m_roleEditor->setIndex(index());
 625     m_roleEditor->setRole(current);
 626     m_roleEditor->setFont(styleOption().font);
 627
 628     const QString text = data().value(current).toString();
 629     m_roleEditor->setPlainText(text);
 630
 631     QTextOption textOption = textInfo->staticText.textOption();
 632     m_roleEditor->document()->setDefaultTextOption(textOption);
 633
 634     const int textSelectionLength = selectionLength(text);
 635
 636     if (textSelectionLength > 0) {
 637         QTextCursor cursor = m_roleEditor->textCursor();
 638         cursor.movePosition(QTextCursor::StartOfBlock);
 639         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength);
 640         m_roleEditor->setTextCursor(cursor);
 641     }
 642
 643     connect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 644             this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 645     connect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 646             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 647
 648     // Adjust the geometry of the editor
 649     QRectF rect = roleEditingRect(current);
 650     const int frameWidth = m_roleEditor->frameWidth();
 651     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 652     rect.translate(pos());
 653     if (rect.right() > parent->width()) {
 654         rect.setWidth(parent->width() - rect.left());
 655     }
 656     m_roleEditor->setGeometry(rect.toRect());
 657     m_roleEditor->show();
 658     m_roleEditor->setFocus();
 659 }
 660
 661 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 662 {
 663     if (m_roleEditor) {
 664         setEditedRole(QByteArray());
 665         Q_ASSERT(!m_roleEditor);
 666     }
 667
 668     KItemListWidget::resizeEvent(event);
 669
 670     m_dirtyLayout = true;
 671 }
 672
 673 void KStandardItemListWidget::showEvent(QShowEvent* event)
 674 {
 675     KItemListWidget::showEvent(event);
 676
 677     // Listen to changes of the clipboard to mark the item as cut/uncut
 678     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 679
 680     const KUrl itemUrl = data().value("url").value<KUrl>();
 681     m_isCut = clipboard->isCut(itemUrl);
 682
 683     connect(clipboard, SIGNAL(cutItemsChanged()),
 684             this, SLOT(slotCutItemsChanged()));
 685 }
 686
 687 void KStandardItemListWidget::hideEvent(QHideEvent* event)
 688 {
 689     disconnect(KFileItemClipboard::instance(), SIGNAL(cutItemsChanged()),
 690                this, SLOT(slotCutItemsChanged()));
 691
 692     KItemListWidget::hideEvent(event);
 693 }
 694
 695 void KStandardItemListWidget::slotCutItemsChanged()
 696 {
 697     const KUrl itemUrl = data().value("url").value<KUrl>();
 698     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 699     if (m_isCut != isCut) {
 700         m_isCut = isCut;
 701         m_pixmap = QPixmap();
 702         m_dirtyContent = true;
 703         update();
 704     }
 705 }
 706
 707 void KStandardItemListWidget::slotRoleEditingCanceled(int index,
 708                                                       const QByteArray& role,
 709                                                       const QVariant& value)
 710 {
 711     closeRoleEditor();
 712     emit roleEditingCanceled(index, role, value);
 713     setEditedRole(QByteArray());
 714 }
 715
 716 void KStandardItemListWidget::slotRoleEditingFinished(int index,
 717                                                       const QByteArray& role,
 718                                                       const QVariant& value)
 719 {
 720     closeRoleEditor();
 721     emit roleEditingFinished(index, role, value);
 722     setEditedRole(QByteArray());
 723 }
 724
 725 void KStandardItemListWidget::triggerCacheRefreshing()
 726 {
 727     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 728         return;
 729     }
 730
 731     refreshCache();
 732
 733     const QHash<QByteArray, QVariant> values = data();
 734     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
 735     m_isHidden = isHidden();
 736     m_customizedFont = customizedFont(styleOption().font);
 737     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
 738
 739     updateExpansionArea();
 740     updateTextsCache();
 741     updatePixmapCache();
 742
 743     m_dirtyLayout = false;
 744     m_dirtyContent = false;
 745     m_dirtyContentRoles.clear();
 746 }
 747
 748 void KStandardItemListWidget::updateExpansionArea()
 749 {
 750     if (m_supportsItemExpanding) {
 751         const QHash<QByteArray, QVariant> values = data();
 752         Q_ASSERT(values.contains("expandedParentsCount"));
 753         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 754         if (expandedParentsCount >= 0) {
 755             const qreal widgetHeight = size().height();
 756             const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2;
 757             const qreal x = expandedParentsCount * widgetHeight + inc;
 758             const qreal y = inc;
 759             m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall);
 760             return;
 761         }
 762     }
 763
 764     m_expansionArea = QRectF();
 765 }
 766
 767 void KStandardItemListWidget::updatePixmapCache()
 768 {
 769     // Precondition: Requires already updated m_textPos values to calculate
 770     // the remaining height when the alignment is vertical.
 771
 772     const QSizeF widgetSize = size();
 773     const bool iconOnTop = (m_layout == IconsLayout);
 774     const KItemListStyleOption& option = styleOption();
 775     const qreal padding = option.padding;
 776
 777     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize;
 778     const int maxIconHeight = option.iconSize;
 779
 780     const QHash<QByteArray, QVariant> values = data();
 781
 782     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
 783     if (!updatePixmap && m_dirtyContent) {
 784         updatePixmap = m_dirtyContentRoles.isEmpty()
 785                        || m_dirtyContentRoles.contains("iconPixmap")
 786                        || m_dirtyContentRoles.contains("iconName")
 787                        || m_dirtyContentRoles.contains("iconOverlays");
 788     }
 789
 790     if (updatePixmap) {
 791         m_pixmap = values["iconPixmap"].value<QPixmap>();
 792         if (m_pixmap.isNull()) {
 793             // Use the icon that fits to the MIME-type
 794             QString iconName = values["iconName"].toString();
 795             if (iconName.isEmpty()) {
 796                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
 797                 // use a generic icon as fallback
 798                 iconName = QLatin1String("unknown");
 799             }
 800             m_pixmap = pixmapForIcon(iconName, maxIconHeight);
 801         } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
 802             // A custom pixmap has been applied. Assure that the pixmap
 803             // is scaled to the maximum available size.
 804             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
 805         }
 806
 807         const QStringList overlays = values["iconOverlays"].toStringList();
 808
 809         // Strangely KFileItem::overlays() returns empty string-values, so
 810         // we need to check first whether an overlay must be drawn at all.
 811         // It is more efficient to do it here, as KIconLoader::drawOverlays()
 812         // assumes that an overlay will be drawn and has some additional
 813         // setup time.
 814         foreach (const QString& overlay, overlays) {
 815             if (!overlay.isEmpty()) {
 816                 // There is at least one overlay, draw all overlays above m_pixmap
 817                 // and cancel the check
 818                 KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop);
 819                 break;
 820             }
 821         }
 822
 823         if (m_isCut) {
 824             KIconEffect* effect = KIconLoader::global()->iconEffect();
 825             m_pixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 826         }
 827
 828         if (m_isHidden) {
 829             KIconEffect::semiTransparent(m_pixmap);
 830         }
 831
 832         if (isSelected()) {
 833             const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
 834             QImage image = m_pixmap.toImage();
 835             KIconEffect::colorize(image, color, 1.0f);
 836             m_pixmap = QPixmap::fromImage(image);
 837         }
 838     }
 839
 840     if (!m_overlay.isNull()) {
 841         QPainter painter(&m_pixmap);
 842         painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay);
 843     }
 844
 845     int scaledIconSize = 0;
 846     if (iconOnTop) {
 847         const TextInfo* textInfo = m_textInfo.value("text");
 848         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
 849     } else {
 850         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
 851         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
 852         scaledIconSize = (requiredTextHeight < maxIconHeight) ?
 853                            widgetSize.height() - 2 * padding : maxIconHeight;
 854     }
 855
 856     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
 857     const int maxScaledIconHeight = scaledIconSize;
 858
 859     m_scaledPixmapSize = m_pixmap.size();
 860     m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio);
 861
 862     if (iconOnTop) {
 863         // Center horizontally and align on bottom within the icon-area
 864         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2);
 865         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
 866     } else {
 867         // Center horizontally and vertically within the icon-area
 868         const TextInfo* textInfo = m_textInfo.value("text");
 869         m_pixmapPos.setX(textInfo->pos.x() - 2 * padding
 870                          - (scaledIconSize + m_scaledPixmapSize.width()) / 2);
 871         m_pixmapPos.setY(padding
 872                          + (scaledIconSize - m_scaledPixmapSize.height()) / 2);
 873     }
 874
 875     m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
 876
 877     // Prepare the pixmap that is used when the item gets hovered
 878     if (isHovered()) {
 879         m_hoverPixmap = m_pixmap;
 880         KIconEffect* effect = KIconLoader::global()->iconEffect();
 881         // In the KIconLoader terminology, active = hover.
 882         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
 883             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
 884         } else {
 885             m_hoverPixmap = m_pixmap;
 886         }
 887     } else if (hoverOpacity() <= 0.0) {
 888         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
 889         m_hoverPixmap = QPixmap();
 890     }
 891 }
 892
 893 void KStandardItemListWidget::updateTextsCache()
 894 {
 895     QTextOption textOption;
 896     switch (m_layout) {
 897     case IconsLayout:
 898         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 899         textOption.setAlignment(Qt::AlignHCenter);
 900         break;
 901     case CompactLayout:
 902     case DetailsLayout:
 903         textOption.setAlignment(Qt::AlignLeft);
 904         textOption.setWrapMode(QTextOption::NoWrap);
 905         break;
 906     default:
 907         Q_ASSERT(false);
 908         break;
 909     }
 910
 911     qDeleteAll(m_textInfo);
 912     m_textInfo.clear();
 913     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
 914         TextInfo* textInfo = new TextInfo();
 915         textInfo->staticText.setTextFormat(Qt::PlainText);
 916         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
 917         textInfo->staticText.setTextOption(textOption);
 918         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
 919     }
 920
 921     switch (m_layout) {
 922     case IconsLayout:   updateIconsLayoutTextCache(); break;
 923     case CompactLayout: updateCompactLayoutTextCache(); break;
 924     case DetailsLayout: updateDetailsLayoutTextCache(); break;
 925     default: Q_ASSERT(false); break;
 926     }
 927
 928     const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 929     if (ratingTextInfo) {
 930         // The text of the rating-role has been set to empty to get
 931         // replaced by a rating-image showing the rating as stars.
 932         const KItemListStyleOption& option = styleOption();
 933         QSizeF ratingSize = preferredRatingSize(option);
 934
 935         const qreal availableWidth = (m_layout == DetailsLayout)
 936                                      ? columnWidth("rating") - columnPadding(option)
 937                                      : size().width();
 938         if (ratingSize.width() > availableWidth) {
 939             ratingSize.rwidth() = availableWidth;
 940         }
 941         m_rating = QPixmap(ratingSize.toSize());
 942         m_rating.fill(Qt::transparent);
 943
 944         QPainter painter(&m_rating);
 945         const QRect rect(0, 0, m_rating.width(), m_rating.height());
 946         const int rating = data().value("rating").toInt();
 947         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
 948     } else if (!m_rating.isNull()) {
 949         m_rating = QPixmap();
 950     }
 951 }
 952
 953 void KStandardItemListWidget::updateIconsLayoutTextCache()
 954 {
 955     //      +------+
 956     //      | Icon |
 957     //      +------+
 958     //
 959     //    Name role that
 960     // might get wrapped above
 961     //    several lines.
 962     //  Additional role 1
 963     //  Additional role 2
 964
 965     const QHash<QByteArray, QVariant> values = data();
 966
 967     const KItemListStyleOption& option = styleOption();
 968     const qreal padding = option.padding;
 969     const qreal maxWidth = size().width() - 2 * padding;
 970     const qreal widgetHeight = size().height();
 971     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
 972
 973     // Initialize properties for the "text" role. It will be used as anchor
 974     // for initializing the position of the other roles.
 975     TextInfo* nameTextInfo = m_textInfo.value("text");
 976     const QString nameText = KStringHandler::preProcessWrap(values["text"].toString());
 977     nameTextInfo->staticText.setText(nameText);
 978
 979     // Calculate the number of lines required for the name and the required width
 980     qreal nameWidth = 0;
 981     qreal nameHeight = 0;
 982     QTextLine line;
 983
 984     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
 985     const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount;
 986
 987     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
 988     layout.setTextOption(nameTextInfo->staticText.textOption());
 989     layout.beginLayout();
 990     int nameLineIndex = 0;
 991     while ((line = layout.createLine()).isValid()) {
 992         line.setLineWidth(maxWidth);
 993         nameWidth = qMax(nameWidth, line.naturalTextWidth());
 994         nameHeight += line.height();
 995
 996         ++nameLineIndex;
 997         if (nameLineIndex == maxNameLines) {
 998             // The maximum number of textlines has been reached. If this is
 999             // the case provide an elided text if necessary.
1000             const int textLength = line.textStart() + line.textLength();
1001             if (textLength < nameText.length()) {
1002                 // Elide the last line of the text
1003                 QString lastTextLine = nameText.mid(line.textStart(), line.textLength());
1004                 lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine,
1005                                                                   Qt::ElideRight,
1006                                                                   line.naturalTextWidth() - 1);
1007                 const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
1008                 nameTextInfo->staticText.setText(elidedText);
1009             }
1010             break;
1011         }
1012     }
1013     layout.endLayout();
1014
1015     // Use one line for each additional information
1016     nameTextInfo->staticText.setTextWidth(maxWidth);
1017     nameTextInfo->pos = QPointF(padding, widgetHeight -
1018                                          nameHeight -
1019                                          additionalRolesCount * lineSpacing -
1020                                          padding);
1021     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
1022                         nameTextInfo->pos.y(),
1023                         nameWidth,
1024                         nameHeight);
1025
1026     // Calculate the position for each additional information
1027     qreal y = nameTextInfo->pos.y() + nameHeight;
1028     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1029         if (role == "text") {
1030             continue;
1031         }
1032
1033         const QString text = roleText(role, values);
1034         TextInfo* textInfo = m_textInfo.value(role);
1035         textInfo->staticText.setText(text);
1036
1037         qreal requiredWidth = 0;
1038
1039         QTextLayout layout(text, m_customizedFont);
1040         QTextOption textOption;
1041         textOption.setWrapMode(QTextOption::NoWrap);
1042         layout.setTextOption(textOption);
1043
1044         layout.beginLayout();
1045         QTextLine textLine = layout.createLine();
1046         if (textLine.isValid()) {
1047             textLine.setLineWidth(maxWidth);
1048             requiredWidth = textLine.naturalTextWidth();
1049             if (requiredWidth > maxWidth) {
1050                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1051                 textInfo->staticText.setText(elidedText);
1052                 requiredWidth = m_customizedFontMetrics.width(elidedText);
1053             } else if (role == "rating") {
1054                 // Use the width of the rating pixmap, because the rating text is empty.
1055                 requiredWidth = m_rating.width();
1056             }
1057         }
1058         layout.endLayout();
1059
1060         textInfo->pos = QPointF(padding, y);
1061         textInfo->staticText.setTextWidth(maxWidth);
1062
1063         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1064         m_textRect |= textRect;
1065
1066         y += lineSpacing;
1067     }
1068
1069     // Add a padding to the text rectangle
1070     m_textRect.adjust(-padding, -padding, padding, padding);
1071 }
1072
1073 void KStandardItemListWidget::updateCompactLayoutTextCache()
1074 {
1075     // +------+  Name role
1076     // | Icon |  Additional role 1
1077     // +------+  Additional role 2
1078
1079     const QHash<QByteArray, QVariant> values = data();
1080
1081     const KItemListStyleOption& option = styleOption();
1082     const qreal widgetHeight = size().height();
1083     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1084     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1085     const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize;
1086
1087     qreal maximumRequiredTextWidth = 0;
1088     const qreal x = option.padding * 3 + scaledIconSize;
1089     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1090     const qreal maxWidth = size().width() - x - option.padding;
1091     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1092         const QString text = roleText(role, values);
1093         TextInfo* textInfo = m_textInfo.value(role);
1094         textInfo->staticText.setText(text);
1095
1096         qreal requiredWidth = m_customizedFontMetrics.width(text);
1097         if (requiredWidth > maxWidth) {
1098             requiredWidth = maxWidth;
1099             const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1100             textInfo->staticText.setText(elidedText);
1101         }
1102
1103         textInfo->pos = QPointF(x, y);
1104         textInfo->staticText.setTextWidth(maxWidth);
1105
1106         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1107
1108         y += lineSpacing;
1109     }
1110
1111     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1112 }
1113
1114 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1115 {
1116     // Precondition: Requires already updated m_expansionArea
1117     // to determine the left position.
1118
1119     // +------+
1120     // | Icon |  Name role   Additional role 1   Additional role 2
1121     // +------+
1122     m_textRect = QRectF();
1123
1124     const KItemListStyleOption& option = styleOption();
1125     const QHash<QByteArray, QVariant> values = data();
1126
1127     const qreal widgetHeight = size().height();
1128     const int scaledIconSize = widgetHeight - 2 * option.padding;
1129     const int fontHeight = m_customizedFontMetrics.height();
1130
1131     const qreal columnWidthInc = columnPadding(option);
1132     qreal firstColumnInc = scaledIconSize;
1133     if (m_supportsItemExpanding) {
1134         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
1135     } else {
1136         firstColumnInc += option.padding;
1137     }
1138
1139     qreal x = firstColumnInc;
1140     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1141
1142     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1143         QString text = roleText(role, values);
1144
1145         // Elide the text in case it does not fit into the available column-width
1146         qreal requiredWidth = m_customizedFontMetrics.width(text);
1147         const qreal roleWidth = columnWidth(role);
1148         qreal availableTextWidth = roleWidth - columnWidthInc;
1149
1150         const bool isTextRole = (role == "text");
1151         if (isTextRole) {
1152             availableTextWidth -= firstColumnInc;
1153         }
1154
1155         if (requiredWidth > availableTextWidth) {
1156             text = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1157             requiredWidth = m_customizedFontMetrics.width(text);
1158         }
1159
1160         TextInfo* textInfo = m_textInfo.value(role);
1161         textInfo->staticText.setText(text);
1162         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
1163         x += roleWidth;
1164
1165         if (isTextRole) {
1166             const qreal textWidth = option.extendedSelectionRegion
1167                                     ? size().width() - textInfo->pos.x()
1168                                     : requiredWidth + 2 * option.padding;
1169             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0,
1170                                 textWidth, size().height());
1171
1172             // The column after the name should always be aligned on the same x-position independent
1173             // from the expansion-level shown in the name column
1174             x -= firstColumnInc;
1175         } else if (isRoleRightAligned(role)) {
1176             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1177         }
1178     }
1179 }
1180
1181 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1182 {
1183     QColor c1;
1184     if (m_customTextColor.isValid()) {
1185         c1 = m_customTextColor;
1186     } else if (isSelected() && m_layout != DetailsLayout) {
1187         c1 = styleOption().palette.highlightedText().color();
1188     } else {
1189         c1 = styleOption().palette.text().color();
1190     }
1191
1192     // For the color of the additional info the inactive text color
1193     // is not used as this might lead to unreadable text for some color schemes. Instead
1194     // the text color c1 is slightly mixed with the background color.
1195     const QColor c2 = styleOption().palette.base().color();
1196     const int p1 = 70;
1197     const int p2 = 100 - p1;
1198     m_additionalInfoTextColor = QColor((c1.red()   * p1 + c2.red()   * p2) / 100,
1199                                        (c1.green() * p1 + c2.green() * p2) / 100,
1200                                        (c1.blue()  * p1 + c2.blue()  * p2) / 100);
1201 }
1202
1203 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
1204 {
1205     if (m_scaledPixmapSize != pixmap.size()) {
1206         QPixmap scaledPixmap = pixmap;
1207         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
1208         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1209
1210 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1211         painter->setPen(Qt::blue);
1212         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1213 #endif
1214     } else {
1215         painter->drawPixmap(m_pixmapPos, pixmap);
1216     }
1217 }
1218
1219 void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
1220 {
1221     const int siblingSize = size().height();
1222     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1223     QRect siblingRect(x, 0, siblingSize, siblingSize);
1224
1225     QStyleOption option;
1226     bool isItemSibling = true;
1227
1228     const QBitArray siblings = siblingsInformation();
1229     for (int i = siblings.count() - 1; i >= 0; --i) {
1230         option.rect = siblingRect;
1231         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1232
1233         if (isItemSibling) {
1234             option.state |= QStyle::State_Item;
1235             if (m_isExpandable) {
1236                 option.state |= QStyle::State_Children;
1237             }
1238             if (data()["isExpanded"].toBool()) {
1239                 option.state |= QStyle::State_Open;
1240             }
1241             isItemSibling = false;
1242         }
1243
1244         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1245
1246         siblingRect.translate(-siblingRect.width(), 0);
1247     }
1248 }
1249
1250 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
1251 {
1252     const TextInfo* textInfo = m_textInfo.value(role);
1253     if (!textInfo) {
1254         return QRectF();
1255     }
1256
1257     QRectF rect(textInfo->pos, textInfo->staticText.size());
1258     if (m_layout == DetailsLayout) {
1259         rect.setWidth(columnWidth(role) - rect.x());
1260     }
1261
1262     return rect;
1263 }
1264
1265 void KStandardItemListWidget::closeRoleEditor()
1266 {
1267     if (m_roleEditor->hasFocus()) {
1268         // If the editing was not ended by a FocusOut event, we have
1269         // to transfer the keyboard focus back to the KItemListContainer.
1270         scene()->views()[0]->parentWidget()->setFocus();
1271     }
1272
1273     disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
1274                this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
1275     disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
1276                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
1277     m_roleEditor->deleteLater();
1278     m_roleEditor = 0;
1279 }
1280
1281 QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, int size)
1282 {
1283     const QString key = "KStandardItemListWidget:" % name  % ":" % QString::number(size);
1284     QPixmap pixmap;
1285
1286     if (!QPixmapCache::find(key, pixmap)) {
1287         const KIcon icon(name);
1288
1289         int requestedSize;
1290         if (size <= KIconLoader::SizeSmall) {
1291             requestedSize = KIconLoader::SizeSmall;
1292         } else if (size <= KIconLoader::SizeSmallMedium) {
1293             requestedSize = KIconLoader::SizeSmallMedium;
1294         } else if (size <= KIconLoader::SizeMedium) {
1295             requestedSize = KIconLoader::SizeMedium;
1296         } else if (size <= KIconLoader::SizeLarge) {
1297             requestedSize = KIconLoader::SizeLarge;
1298         } else if (size <= KIconLoader::SizeHuge) {
1299             requestedSize = KIconLoader::SizeHuge;
1300         } else if (size <= KIconLoader::SizeEnormous) {
1301             requestedSize = KIconLoader::SizeEnormous;
1302         } else if (size <= KIconLoader::SizeEnormous * 2) {
1303             requestedSize = KIconLoader::SizeEnormous * 2;
1304         } else {
1305             requestedSize = size;
1306         }
1307
1308         pixmap = icon.pixmap(requestedSize, requestedSize);
1309         if (requestedSize != size) {
1310             KPixmapModifier::scale(pixmap, QSize(size, size));
1311         }
1312
1313         QPixmapCache::insert(key, pixmap);
1314     }
1315
1316     return pixmap;
1317 }
1318
1319 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption& option)
1320 {
1321     const qreal height = option.fontMetrics.ascent();
1322     return QSizeF(height * 5, height);
1323 }
1324
1325 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption& option)
1326 {
1327     return option.padding * 6;
1328 }
1329
1330 #include "kstandarditemlistwidget.moc"