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             // Do not delete the role editor using deleteLater() because we might be
 614             // inside a nested event loop which has been started by one of its event
 615             // handlers (contextMenuEvent() or drag&drop inside mouseMoveEvent()).
 616             m_roleEditor->deleteWhenIdle();
 617             m_roleEditor = 0;
 618         }
 619         return;
 620     }
 621
 622     Q_ASSERT(!m_roleEditor);
 623
 624     const TextInfo* textInfo = m_textInfo.value("text");
 625
 626     m_roleEditor = new KItemListRoleEditor(parent);
 627     m_roleEditor->setIndex(index());
 628     m_roleEditor->setRole(current);
 629     m_roleEditor->setFont(styleOption().font);
 630
 631     const QString text = data().value(current).toString();
 632     m_roleEditor->setPlainText(text);
 633
 634     QTextOption textOption = textInfo->staticText.textOption();
 635     m_roleEditor->document()->setDefaultTextOption(textOption);
 636
 637     const int textSelectionLength = selectionLength(text);
 638
 639     if (textSelectionLength > 0) {
 640         QTextCursor cursor = m_roleEditor->textCursor();
 641         cursor.movePosition(QTextCursor::StartOfBlock);
 642         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength);
 643         m_roleEditor->setTextCursor(cursor);
 644     }
 645
 646     connect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 647             this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 648     connect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 649             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 650
 651     // Adjust the geometry of the editor
 652     QRectF rect = roleEditingRect(current);
 653     const int frameWidth = m_roleEditor->frameWidth();
 654     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 655     rect.translate(pos());
 656     if (rect.right() > parent->width()) {
 657         rect.setWidth(parent->width() - rect.left());
 658     }
 659     m_roleEditor->setGeometry(rect.toRect());
 660     m_roleEditor->show();
 661     m_roleEditor->setFocus();
 662 }
 663
 664 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 665 {
 666     if (m_roleEditor) {
 667         setEditedRole(QByteArray());
 668         Q_ASSERT(!m_roleEditor);
 669     }
 670
 671     KItemListWidget::resizeEvent(event);
 672
 673     m_dirtyLayout = true;
 674 }
 675
 676 void KStandardItemListWidget::showEvent(QShowEvent* event)
 677 {
 678     KItemListWidget::showEvent(event);
 679
 680     // Listen to changes of the clipboard to mark the item as cut/uncut
 681     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 682
 683     const KUrl itemUrl = data().value("url").value<KUrl>();
 684     m_isCut = clipboard->isCut(itemUrl);
 685
 686     connect(clipboard, SIGNAL(cutItemsChanged()),
 687             this, SLOT(slotCutItemsChanged()));
 688 }
 689
 690 void KStandardItemListWidget::hideEvent(QHideEvent* event)
 691 {
 692     disconnect(KFileItemClipboard::instance(), SIGNAL(cutItemsChanged()),
 693                this, SLOT(slotCutItemsChanged()));
 694
 695     KItemListWidget::hideEvent(event);
 696 }
 697
 698 void KStandardItemListWidget::slotCutItemsChanged()
 699 {
 700     const KUrl itemUrl = data().value("url").value<KUrl>();
 701     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 702     if (m_isCut != isCut) {
 703         m_isCut = isCut;
 704         m_pixmap = QPixmap();
 705         m_dirtyContent = true;
 706         update();
 707     }
 708 }
 709
 710 void KStandardItemListWidget::slotRoleEditingCanceled(int index,
 711                                                       const QByteArray& role,
 712                                                       const QVariant& value)
 713 {
 714     closeRoleEditor();
 715     emit roleEditingCanceled(index, role, value);
 716     setEditedRole(QByteArray());
 717 }
 718
 719 void KStandardItemListWidget::slotRoleEditingFinished(int index,
 720                                                       const QByteArray& role,
 721                                                       const QVariant& value)
 722 {
 723     closeRoleEditor();
 724     emit roleEditingFinished(index, role, value);
 725     setEditedRole(QByteArray());
 726 }
 727
 728 void KStandardItemListWidget::triggerCacheRefreshing()
 729 {
 730     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 731         return;
 732     }
 733
 734     refreshCache();
 735
 736     const QHash<QByteArray, QVariant> values = data();
 737     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
 738     m_isHidden = isHidden();
 739     m_customizedFont = customizedFont(styleOption().font);
 740     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
 741
 742     updateExpansionArea();
 743     updateTextsCache();
 744     updatePixmapCache();
 745
 746     m_dirtyLayout = false;
 747     m_dirtyContent = false;
 748     m_dirtyContentRoles.clear();
 749 }
 750
 751 void KStandardItemListWidget::updateExpansionArea()
 752 {
 753     if (m_supportsItemExpanding) {
 754         const QHash<QByteArray, QVariant> values = data();
 755         Q_ASSERT(values.contains("expandedParentsCount"));
 756         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 757         if (expandedParentsCount >= 0) {
 758             const qreal widgetHeight = size().height();
 759             const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2;
 760             const qreal x = expandedParentsCount * widgetHeight + inc;
 761             const qreal y = inc;
 762             m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall);
 763             return;
 764         }
 765     }
 766
 767     m_expansionArea = QRectF();
 768 }
 769
 770 void KStandardItemListWidget::updatePixmapCache()
 771 {
 772     // Precondition: Requires already updated m_textPos values to calculate
 773     // the remaining height when the alignment is vertical.
 774
 775     const QSizeF widgetSize = size();
 776     const bool iconOnTop = (m_layout == IconsLayout);
 777     const KItemListStyleOption& option = styleOption();
 778     const qreal padding = option.padding;
 779
 780     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize;
 781     const int maxIconHeight = option.iconSize;
 782
 783     const QHash<QByteArray, QVariant> values = data();
 784
 785     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
 786     if (!updatePixmap && m_dirtyContent) {
 787         updatePixmap = m_dirtyContentRoles.isEmpty()
 788                        || m_dirtyContentRoles.contains("iconPixmap")
 789                        || m_dirtyContentRoles.contains("iconName")
 790                        || m_dirtyContentRoles.contains("iconOverlays");
 791     }
 792
 793     if (updatePixmap) {
 794         m_pixmap = values["iconPixmap"].value<QPixmap>();
 795         if (m_pixmap.isNull()) {
 796             // Use the icon that fits to the MIME-type
 797             QString iconName = values["iconName"].toString();
 798             if (iconName.isEmpty()) {
 799                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
 800                 // use a generic icon as fallback
 801                 iconName = QLatin1String("unknown");
 802             }
 803             m_pixmap = pixmapForIcon(iconName, maxIconHeight);
 804         } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
 805             // A custom pixmap has been applied. Assure that the pixmap
 806             // is scaled to the maximum available size.
 807             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
 808         }
 809
 810         const QStringList overlays = values["iconOverlays"].toStringList();
 811
 812         // Strangely KFileItem::overlays() returns empty string-values, so
 813         // we need to check first whether an overlay must be drawn at all.
 814         // It is more efficient to do it here, as KIconLoader::drawOverlays()
 815         // assumes that an overlay will be drawn and has some additional
 816         // setup time.
 817         foreach (const QString& overlay, overlays) {
 818             if (!overlay.isEmpty()) {
 819                 // There is at least one overlay, draw all overlays above m_pixmap
 820                 // and cancel the check
 821                 KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop);
 822                 break;
 823             }
 824         }
 825
 826         if (m_isCut) {
 827             KIconEffect* effect = KIconLoader::global()->iconEffect();
 828             m_pixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 829         }
 830
 831         if (m_isHidden) {
 832             KIconEffect::semiTransparent(m_pixmap);
 833         }
 834
 835         if (isSelected()) {
 836             const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
 837             QImage image = m_pixmap.toImage();
 838             KIconEffect::colorize(image, color, 1.0f);
 839             m_pixmap = QPixmap::fromImage(image);
 840         }
 841     }
 842
 843     if (!m_overlay.isNull()) {
 844         QPainter painter(&m_pixmap);
 845         painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay);
 846     }
 847
 848     int scaledIconSize = 0;
 849     if (iconOnTop) {
 850         const TextInfo* textInfo = m_textInfo.value("text");
 851         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
 852     } else {
 853         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
 854         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
 855         scaledIconSize = (requiredTextHeight < maxIconHeight) ?
 856                            widgetSize.height() - 2 * padding : maxIconHeight;
 857     }
 858
 859     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
 860     const int maxScaledIconHeight = scaledIconSize;
 861
 862     m_scaledPixmapSize = m_pixmap.size();
 863     m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio);
 864
 865     if (iconOnTop) {
 866         // Center horizontally and align on bottom within the icon-area
 867         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2);
 868         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
 869     } else {
 870         // Center horizontally and vertically within the icon-area
 871         const TextInfo* textInfo = m_textInfo.value("text");
 872         m_pixmapPos.setX(textInfo->pos.x() - 2 * padding
 873                          - (scaledIconSize + m_scaledPixmapSize.width()) / 2);
 874         m_pixmapPos.setY(padding
 875                          + (scaledIconSize - m_scaledPixmapSize.height()) / 2);
 876     }
 877
 878     m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
 879
 880     // Prepare the pixmap that is used when the item gets hovered
 881     if (isHovered()) {
 882         m_hoverPixmap = m_pixmap;
 883         KIconEffect* effect = KIconLoader::global()->iconEffect();
 884         // In the KIconLoader terminology, active = hover.
 885         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
 886             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
 887         } else {
 888             m_hoverPixmap = m_pixmap;
 889         }
 890     } else if (hoverOpacity() <= 0.0) {
 891         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
 892         m_hoverPixmap = QPixmap();
 893     }
 894 }
 895
 896 void KStandardItemListWidget::updateTextsCache()
 897 {
 898     QTextOption textOption;
 899     switch (m_layout) {
 900     case IconsLayout:
 901         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 902         textOption.setAlignment(Qt::AlignHCenter);
 903         break;
 904     case CompactLayout:
 905     case DetailsLayout:
 906         textOption.setAlignment(Qt::AlignLeft);
 907         textOption.setWrapMode(QTextOption::NoWrap);
 908         break;
 909     default:
 910         Q_ASSERT(false);
 911         break;
 912     }
 913
 914     qDeleteAll(m_textInfo);
 915     m_textInfo.clear();
 916     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
 917         TextInfo* textInfo = new TextInfo();
 918         textInfo->staticText.setTextFormat(Qt::PlainText);
 919         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
 920         textInfo->staticText.setTextOption(textOption);
 921         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
 922     }
 923
 924     switch (m_layout) {
 925     case IconsLayout:   updateIconsLayoutTextCache(); break;
 926     case CompactLayout: updateCompactLayoutTextCache(); break;
 927     case DetailsLayout: updateDetailsLayoutTextCache(); break;
 928     default: Q_ASSERT(false); break;
 929     }
 930
 931     const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 932     if (ratingTextInfo) {
 933         // The text of the rating-role has been set to empty to get
 934         // replaced by a rating-image showing the rating as stars.
 935         const KItemListStyleOption& option = styleOption();
 936         QSizeF ratingSize = preferredRatingSize(option);
 937
 938         const qreal availableWidth = (m_layout == DetailsLayout)
 939                                      ? columnWidth("rating") - columnPadding(option)
 940                                      : size().width();
 941         if (ratingSize.width() > availableWidth) {
 942             ratingSize.rwidth() = availableWidth;
 943         }
 944         m_rating = QPixmap(ratingSize.toSize());
 945         m_rating.fill(Qt::transparent);
 946
 947         QPainter painter(&m_rating);
 948         const QRect rect(0, 0, m_rating.width(), m_rating.height());
 949         const int rating = data().value("rating").toInt();
 950         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
 951     } else if (!m_rating.isNull()) {
 952         m_rating = QPixmap();
 953     }
 954 }
 955
 956 void KStandardItemListWidget::updateIconsLayoutTextCache()
 957 {
 958     //      +------+
 959     //      | Icon |
 960     //      +------+
 961     //
 962     //    Name role that
 963     // might get wrapped above
 964     //    several lines.
 965     //  Additional role 1
 966     //  Additional role 2
 967
 968     const QHash<QByteArray, QVariant> values = data();
 969
 970     const KItemListStyleOption& option = styleOption();
 971     const qreal padding = option.padding;
 972     const qreal maxWidth = size().width() - 2 * padding;
 973     const qreal widgetHeight = size().height();
 974     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
 975
 976     // Initialize properties for the "text" role. It will be used as anchor
 977     // for initializing the position of the other roles.
 978     TextInfo* nameTextInfo = m_textInfo.value("text");
 979     const QString nameText = KStringHandler::preProcessWrap(values["text"].toString());
 980     nameTextInfo->staticText.setText(nameText);
 981
 982     // Calculate the number of lines required for the name and the required width
 983     qreal nameWidth = 0;
 984     qreal nameHeight = 0;
 985     QTextLine line;
 986
 987     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
 988     const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount;
 989
 990     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
 991     layout.setTextOption(nameTextInfo->staticText.textOption());
 992     layout.beginLayout();
 993     int nameLineIndex = 0;
 994     while ((line = layout.createLine()).isValid()) {
 995         line.setLineWidth(maxWidth);
 996         nameWidth = qMax(nameWidth, line.naturalTextWidth());
 997         nameHeight += line.height();
 998
 999         ++nameLineIndex;
1000         if (nameLineIndex == maxNameLines) {
1001             // The maximum number of textlines has been reached. If this is
1002             // the case provide an elided text if necessary.
1003             const int textLength = line.textStart() + line.textLength();
1004             if (textLength < nameText.length()) {
1005                 // Elide the last line of the text
1006                 QString lastTextLine = nameText.mid(line.textStart(), line.textLength());
1007                 lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine,
1008                                                                   Qt::ElideRight,
1009                                                                   line.naturalTextWidth() - 1);
1010                 const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
1011                 nameTextInfo->staticText.setText(elidedText);
1012             }
1013             break;
1014         }
1015     }
1016     layout.endLayout();
1017
1018     // Use one line for each additional information
1019     nameTextInfo->staticText.setTextWidth(maxWidth);
1020     nameTextInfo->pos = QPointF(padding, widgetHeight -
1021                                          nameHeight -
1022                                          additionalRolesCount * lineSpacing -
1023                                          padding);
1024     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
1025                         nameTextInfo->pos.y(),
1026                         nameWidth,
1027                         nameHeight);
1028
1029     // Calculate the position for each additional information
1030     qreal y = nameTextInfo->pos.y() + nameHeight;
1031     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1032         if (role == "text") {
1033             continue;
1034         }
1035
1036         const QString text = roleText(role, values);
1037         TextInfo* textInfo = m_textInfo.value(role);
1038         textInfo->staticText.setText(text);
1039
1040         qreal requiredWidth = 0;
1041
1042         QTextLayout layout(text, m_customizedFont);
1043         QTextOption textOption;
1044         textOption.setWrapMode(QTextOption::NoWrap);
1045         layout.setTextOption(textOption);
1046
1047         layout.beginLayout();
1048         QTextLine textLine = layout.createLine();
1049         if (textLine.isValid()) {
1050             textLine.setLineWidth(maxWidth);
1051             requiredWidth = textLine.naturalTextWidth();
1052             if (requiredWidth > maxWidth) {
1053                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1054                 textInfo->staticText.setText(elidedText);
1055                 requiredWidth = m_customizedFontMetrics.width(elidedText);
1056             } else if (role == "rating") {
1057                 // Use the width of the rating pixmap, because the rating text is empty.
1058                 requiredWidth = m_rating.width();
1059             }
1060         }
1061         layout.endLayout();
1062
1063         textInfo->pos = QPointF(padding, y);
1064         textInfo->staticText.setTextWidth(maxWidth);
1065
1066         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1067         m_textRect |= textRect;
1068
1069         y += lineSpacing;
1070     }
1071
1072     // Add a padding to the text rectangle
1073     m_textRect.adjust(-padding, -padding, padding, padding);
1074 }
1075
1076 void KStandardItemListWidget::updateCompactLayoutTextCache()
1077 {
1078     // +------+  Name role
1079     // | Icon |  Additional role 1
1080     // +------+  Additional role 2
1081
1082     const QHash<QByteArray, QVariant> values = data();
1083
1084     const KItemListStyleOption& option = styleOption();
1085     const qreal widgetHeight = size().height();
1086     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1087     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1088     const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize;
1089
1090     qreal maximumRequiredTextWidth = 0;
1091     const qreal x = option.padding * 3 + scaledIconSize;
1092     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1093     const qreal maxWidth = size().width() - x - option.padding;
1094     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1095         const QString text = roleText(role, values);
1096         TextInfo* textInfo = m_textInfo.value(role);
1097         textInfo->staticText.setText(text);
1098
1099         qreal requiredWidth = m_customizedFontMetrics.width(text);
1100         if (requiredWidth > maxWidth) {
1101             requiredWidth = maxWidth;
1102             const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1103             textInfo->staticText.setText(elidedText);
1104         }
1105
1106         textInfo->pos = QPointF(x, y);
1107         textInfo->staticText.setTextWidth(maxWidth);
1108
1109         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1110
1111         y += lineSpacing;
1112     }
1113
1114     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1115 }
1116
1117 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1118 {
1119     // Precondition: Requires already updated m_expansionArea
1120     // to determine the left position.
1121
1122     // +------+
1123     // | Icon |  Name role   Additional role 1   Additional role 2
1124     // +------+
1125     m_textRect = QRectF();
1126
1127     const KItemListStyleOption& option = styleOption();
1128     const QHash<QByteArray, QVariant> values = data();
1129
1130     const qreal widgetHeight = size().height();
1131     const int scaledIconSize = widgetHeight - 2 * option.padding;
1132     const int fontHeight = m_customizedFontMetrics.height();
1133
1134     const qreal columnWidthInc = columnPadding(option);
1135     qreal firstColumnInc = scaledIconSize;
1136     if (m_supportsItemExpanding) {
1137         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
1138     } else {
1139         firstColumnInc += option.padding;
1140     }
1141
1142     qreal x = firstColumnInc;
1143     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1144
1145     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1146         QString text = roleText(role, values);
1147
1148         // Elide the text in case it does not fit into the available column-width
1149         qreal requiredWidth = m_customizedFontMetrics.width(text);
1150         const qreal roleWidth = columnWidth(role);
1151         qreal availableTextWidth = roleWidth - columnWidthInc;
1152
1153         const bool isTextRole = (role == "text");
1154         if (isTextRole) {
1155             availableTextWidth -= firstColumnInc;
1156         }
1157
1158         if (requiredWidth > availableTextWidth) {
1159             text = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1160             requiredWidth = m_customizedFontMetrics.width(text);
1161         }
1162
1163         TextInfo* textInfo = m_textInfo.value(role);
1164         textInfo->staticText.setText(text);
1165         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
1166         x += roleWidth;
1167
1168         if (isTextRole) {
1169             const qreal textWidth = option.extendedSelectionRegion
1170                                     ? size().width() - textInfo->pos.x()
1171                                     : requiredWidth + 2 * option.padding;
1172             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0,
1173                                 textWidth, size().height());
1174
1175             // The column after the name should always be aligned on the same x-position independent
1176             // from the expansion-level shown in the name column
1177             x -= firstColumnInc;
1178         } else if (isRoleRightAligned(role)) {
1179             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1180         }
1181     }
1182 }
1183
1184 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1185 {
1186     QColor c1;
1187     if (m_customTextColor.isValid()) {
1188         c1 = m_customTextColor;
1189     } else if (isSelected() && m_layout != DetailsLayout) {
1190         c1 = styleOption().palette.highlightedText().color();
1191     } else {
1192         c1 = styleOption().palette.text().color();
1193     }
1194
1195     // For the color of the additional info the inactive text color
1196     // is not used as this might lead to unreadable text for some color schemes. Instead
1197     // the text color c1 is slightly mixed with the background color.
1198     const QColor c2 = styleOption().palette.base().color();
1199     const int p1 = 70;
1200     const int p2 = 100 - p1;
1201     m_additionalInfoTextColor = QColor((c1.red()   * p1 + c2.red()   * p2) / 100,
1202                                        (c1.green() * p1 + c2.green() * p2) / 100,
1203                                        (c1.blue()  * p1 + c2.blue()  * p2) / 100);
1204 }
1205
1206 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
1207 {
1208     if (m_scaledPixmapSize != pixmap.size()) {
1209         QPixmap scaledPixmap = pixmap;
1210         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
1211         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1212
1213 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1214         painter->setPen(Qt::blue);
1215         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1216 #endif
1217     } else {
1218         painter->drawPixmap(m_pixmapPos, pixmap);
1219     }
1220 }
1221
1222 void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
1223 {
1224     const int siblingSize = size().height();
1225     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1226     QRect siblingRect(x, 0, siblingSize, siblingSize);
1227
1228     QStyleOption option;
1229     option.palette.setColor(QPalette::Text, option.palette.color(normalTextColorRole()));
1230     bool isItemSibling = true;
1231
1232     const QBitArray siblings = siblingsInformation();
1233     for (int i = siblings.count() - 1; i >= 0; --i) {
1234         option.rect = siblingRect;
1235         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1236
1237         if (isItemSibling) {
1238             option.state |= QStyle::State_Item;
1239             if (m_isExpandable) {
1240                 option.state |= QStyle::State_Children;
1241             }
1242             if (data()["isExpanded"].toBool()) {
1243                 option.state |= QStyle::State_Open;
1244             }
1245             isItemSibling = false;
1246         }
1247
1248         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1249
1250         siblingRect.translate(-siblingRect.width(), 0);
1251     }
1252 }
1253
1254 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
1255 {
1256     const TextInfo* textInfo = m_textInfo.value(role);
1257     if (!textInfo) {
1258         return QRectF();
1259     }
1260
1261     QRectF rect(textInfo->pos, textInfo->staticText.size());
1262     if (m_layout == DetailsLayout) {
1263         rect.setWidth(columnWidth(role) - rect.x());
1264     }
1265
1266     return rect;
1267 }
1268
1269 void KStandardItemListWidget::closeRoleEditor()
1270 {
1271     if (m_roleEditor->hasFocus()) {
1272         // If the editing was not ended by a FocusOut event, we have
1273         // to transfer the keyboard focus back to the KItemListContainer.
1274         scene()->views()[0]->parentWidget()->setFocus();
1275     }
1276
1277     disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
1278                this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
1279     disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
1280                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
1281
1282     // Do not delete the role editor using deleteLater() because we might be
1283     // inside a nested event loop which has been started by one of its event
1284     // handlers (contextMenuEvent() or drag&drop inside mouseMoveEvent()).
1285     m_roleEditor->deleteWhenIdle();
1286     m_roleEditor = 0;
1287 }
1288
1289 QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, int size)
1290 {
1291     const QString key = "KStandardItemListWidget:" % name  % ":" % QString::number(size);
1292     QPixmap pixmap;
1293
1294     if (!QPixmapCache::find(key, pixmap)) {
1295         const KIcon icon(name);
1296
1297         int requestedSize;
1298         if (size <= KIconLoader::SizeSmall) {
1299             requestedSize = KIconLoader::SizeSmall;
1300         } else if (size <= KIconLoader::SizeSmallMedium) {
1301             requestedSize = KIconLoader::SizeSmallMedium;
1302         } else if (size <= KIconLoader::SizeMedium) {
1303             requestedSize = KIconLoader::SizeMedium;
1304         } else if (size <= KIconLoader::SizeLarge) {
1305             requestedSize = KIconLoader::SizeLarge;
1306         } else if (size <= KIconLoader::SizeHuge) {
1307             requestedSize = KIconLoader::SizeHuge;
1308         } else if (size <= KIconLoader::SizeEnormous) {
1309             requestedSize = KIconLoader::SizeEnormous;
1310         } else if (size <= KIconLoader::SizeEnormous * 2) {
1311             requestedSize = KIconLoader::SizeEnormous * 2;
1312         } else {
1313             requestedSize = size;
1314         }
1315
1316         pixmap = icon.pixmap(requestedSize, requestedSize);
1317         if (requestedSize != size) {
1318             KPixmapModifier::scale(pixmap, QSize(size, size));
1319         }
1320
1321         QPixmapCache::insert(key, pixmap);
1322     }
1323
1324     return pixmap;
1325 }
1326
1327 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption& option)
1328 {
1329     const qreal height = option.fontMetrics.ascent();
1330     return QSizeF(height * 5, height);
1331 }
1332
1333 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption& option)
1334 {
1335     return option.padding * 6;
1336 }
1337
1338 #include "kstandarditemlistwidget.moc"