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 KItemListStyleOption& option = view->styleOption();
  61     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
  62
  63     switch (static_cast<const KStandardItemListView*>(view)->itemLayout()) {
  64     case KStandardItemListWidget::IconsLayout: {
  65         const QString text = KStringHandler::preProcessWrap(itemText(index, view));
  66
  67         const qreal itemWidth = view->itemSize().width();
  68         const qreal maxWidth = itemWidth - 2 * option.padding;
  69         QTextLine line;
  70
  71         // Calculate the number of lines required for wrapping the name
  72         QTextOption textOption(Qt::AlignHCenter);
  73         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
  74
  75         qreal textHeight = 0;
  76         QTextLayout layout(text, option.font);
  77         layout.setTextOption(textOption);
  78         layout.beginLayout();
  79         while ((line = layout.createLine()).isValid()) {
  80             line.setLineWidth(maxWidth);
  81             line.naturalTextWidth();
  82             textHeight += line.height();
  83         }
  84         layout.endLayout();
  85
  86         // Add one line for each additional information
  87         textHeight += additionalRolesCount * option.fontMetrics.lineSpacing();
  88
  89         const qreal maxTextHeight = option.maxTextSize.height();
  90         if (maxTextHeight > 0 && textHeight > maxTextHeight) {
  91             textHeight = maxTextHeight;
  92         }
  93
  94         return QSizeF(itemWidth, textHeight + option.iconSize + option.padding * 3);
  95     }
  96
  97     case KStandardItemListWidget::CompactLayout: {
  98         // For each row exactly one role is shown. Calculate the maximum required width that is necessary
  99         // to show all roles without horizontal clipping.
 100         qreal maximumRequiredWidth = 0.0;
 101
 102         const QHash<QByteArray, QVariant> values = view->model()->data(index);
 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::itemText(int index, const KItemListView* view) const
 163 {
 164     return view->model()->data(index).value("text").toString();
 165 }
 166
 167 QString KStandardItemListWidgetInformant::roleText(const QByteArray& role,
 168                                                    const QHash<QByteArray, QVariant>& values) const
 169 {
 170     if (role == "rating") {
 171         // Always use an empty text, as the rating is shown by the image m_rating.
 172         return QString();
 173     }
 174     return values.value(role).toString();
 175 }
 176
 177 KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
 178     KItemListWidget(informant, parent),
 179     m_isCut(false),
 180     m_isHidden(false),
 181     m_customizedFont(),
 182     m_customizedFontMetrics(m_customizedFont),
 183     m_isExpandable(false),
 184     m_supportsItemExpanding(false),
 185     m_dirtyLayout(true),
 186     m_dirtyContent(true),
 187     m_dirtyContentRoles(),
 188     m_layout(IconsLayout),
 189     m_pixmapPos(),
 190     m_pixmap(),
 191     m_scaledPixmapSize(),
 192     m_iconRect(),
 193     m_hoverPixmap(),
 194     m_textInfo(),
 195     m_textRect(),
 196     m_sortedVisibleRoles(),
 197     m_expansionArea(),
 198     m_customTextColor(),
 199     m_additionalInfoTextColor(),
 200     m_overlay(),
 201     m_rating(),
 202     m_roleEditor(0),
 203     m_oldRoleEditor(0)
 204 {
 205 }
 206
 207 KStandardItemListWidget::~KStandardItemListWidget()
 208 {
 209     qDeleteAll(m_textInfo);
 210     m_textInfo.clear();
 211
 212     if (m_roleEditor) {
 213         m_roleEditor->deleteLater();
 214     }
 215
 216     if (m_oldRoleEditor) {
 217         m_oldRoleEditor->deleteLater();
 218     }
 219 }
 220
 221 void KStandardItemListWidget::setLayout(Layout layout)
 222 {
 223     if (m_layout != layout) {
 224         m_layout = layout;
 225         m_dirtyLayout = true;
 226         updateAdditionalInfoTextColor();
 227         update();
 228     }
 229 }
 230
 231 KStandardItemListWidget::Layout KStandardItemListWidget::layout() const
 232 {
 233     return m_layout;
 234 }
 235
 236 void KStandardItemListWidget::setSupportsItemExpanding(bool supportsItemExpanding)
 237 {
 238     if (m_supportsItemExpanding != supportsItemExpanding) {
 239         m_supportsItemExpanding = supportsItemExpanding;
 240         m_dirtyLayout = true;
 241         update();
 242     }
 243 }
 244
 245 bool KStandardItemListWidget::supportsItemExpanding() const
 246 {
 247     return m_supportsItemExpanding;
 248 }
 249
 250 void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
 251 {
 252     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 253
 254     KItemListWidget::paint(painter, option, widget);
 255
 256     if (!m_expansionArea.isEmpty()) {
 257         drawSiblingsInformation(painter);
 258     }
 259
 260     const KItemListStyleOption& itemListStyleOption = styleOption();
 261     if (isHovered()) {
 262         if (hoverOpacity() < 1.0) {
 263             /*
 264              * Linear interpolation between m_pixmap and m_hoverPixmap.
 265              *
 266              * Note that this cannot be achieved by painting m_hoverPixmap over
 267              * m_pixmap, even if the opacities are adjusted. For details see
 268              * https://git.reviewboard.kde.org/r/109614/
 269              */
 270             // Paint pixmap1 so that pixmap1 = m_pixmap * (1.0 - hoverOpacity())
 271             QPixmap pixmap1(m_pixmap.size());
 272             pixmap1.fill(Qt::transparent);
 273             {
 274                 QPainter p(&pixmap1);
 275                 p.setOpacity(1.0 - hoverOpacity());
 276                 p.drawPixmap(0, 0, m_pixmap);
 277             }
 278
 279             // Paint pixmap2 so that pixmap2 = m_hoverPixmap * hoverOpacity()
 280             QPixmap pixmap2(pixmap1.size());
 281             pixmap2.fill(Qt::transparent);
 282             {
 283                 QPainter p(&pixmap2);
 284                 p.setOpacity(hoverOpacity());
 285                 p.drawPixmap(0, 0, m_hoverPixmap);
 286             }
 287
 288             // Paint pixmap2 on pixmap1 using CompositionMode_Plus
 289             // Now pixmap1 = pixmap2 + m_pixmap * (1.0 - hoverOpacity())
 290             //             = m_hoverPixmap * hoverOpacity() + m_pixmap * (1.0 - hoverOpacity())
 291             {
 292                 QPainter p(&pixmap1);
 293                 p.setCompositionMode(QPainter::CompositionMode_Plus);
 294                 p.drawPixmap(0, 0, pixmap2);
 295             }
 296
 297             // Finally paint pixmap1 on the widget
 298             drawPixmap(painter, pixmap1);
 299         } else {
 300             drawPixmap(painter, m_hoverPixmap);
 301         }
 302     } else {
 303         drawPixmap(painter, m_pixmap);
 304     }
 305
 306     painter->setFont(m_customizedFont);
 307     painter->setPen(textColor());
 308     const TextInfo* textInfo = m_textInfo.value("text");
 309
 310     if (!textInfo) {
 311         // It seems that we can end up here even if m_textInfo does not contain
 312         // the key "text", see bug 306167. According to triggerCacheRefreshing(),
 313         // this can only happen if the index is negative. This can happen when
 314         // the item is about to be removed, see KItemListView::slotItemsRemoved().
 315         // TODO: try to reproduce the crash and find a better fix.
 316         return;
 317     }
 318
 319     painter->drawStaticText(textInfo->pos, textInfo->staticText);
 320
 321     bool clipAdditionalInfoBounds = false;
 322     if (m_supportsItemExpanding) {
 323         // Prevent a possible overlapping of the additional-information texts
 324         // with the icon. This can happen if the user has minimized the width
 325         // of the name-column to a very small value.
 326         const qreal minX = m_pixmapPos.x() + m_pixmap.width() + 4 * itemListStyleOption.padding;
 327         if (textInfo->pos.x() + columnWidth("text") > minX) {
 328             clipAdditionalInfoBounds = true;
 329             painter->save();
 330             painter->setClipRect(minX, 0, size().width() - minX, size().height(), Qt::IntersectClip);
 331         }
 332     }
 333
 334     painter->setPen(m_additionalInfoTextColor);
 335     painter->setFont(m_customizedFont);
 336
 337     for (int i = 1; i < m_sortedVisibleRoles.count(); ++i) {
 338         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles[i]);
 339         painter->drawStaticText(textInfo->pos, textInfo->staticText);
 340     }
 341
 342     if (!m_rating.isNull()) {
 343         const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 344         QPointF pos = ratingTextInfo->pos;
 345         const Qt::Alignment align = ratingTextInfo->staticText.textOption().alignment();
 346         if (align & Qt::AlignHCenter) {
 347             pos.rx() += (size().width() - m_rating.width()) / 2 - 2;
 348         }
 349         painter->drawPixmap(pos, m_rating);
 350     }
 351
 352     if (clipAdditionalInfoBounds) {
 353         painter->restore();
 354     }
 355
 356 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
 357     painter->setBrush(Qt::NoBrush);
 358     painter->setPen(Qt::green);
 359     painter->drawRect(m_iconRect);
 360
 361     painter->setPen(Qt::blue);
 362     painter->drawRect(m_textRect);
 363
 364     painter->setPen(Qt::red);
 365     painter->drawText(QPointF(0, m_customizedFontMetrics.height()), QString::number(index()));
 366     painter->drawRect(rect());
 367 #endif
 368 }
 369
 370 QRectF KStandardItemListWidget::iconRect() const
 371 {
 372     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 373     return m_iconRect;
 374 }
 375
 376 QRectF KStandardItemListWidget::textRect() const
 377 {
 378     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 379     return m_textRect;
 380 }
 381
 382 QRectF KStandardItemListWidget::textFocusRect() const
 383 {
 384     // In the compact- and details-layout a larger textRect() is returned to be aligned
 385     // with the iconRect(). This is useful to have a larger selection/hover-area
 386     // when having a quite large icon size but only one line of text. Still the
 387     // focus rectangle should be shown as narrow as possible around the text.
 388
 389     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 390
 391     switch (m_layout) {
 392     case CompactLayout: {
 393         QRectF rect = m_textRect;
 394         const TextInfo* topText    = m_textInfo.value(m_sortedVisibleRoles.first());
 395         const TextInfo* bottomText = m_textInfo.value(m_sortedVisibleRoles.last());
 396         rect.setTop(topText->pos.y());
 397         rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height());
 398         return rect;
 399     }
 400
 401     case DetailsLayout: {
 402         QRectF rect = m_textRect;
 403         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles.first());
 404         rect.setTop(textInfo->pos.y());
 405         rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height());
 406
 407         const KItemListStyleOption& option = styleOption();
 408         if (option.extendedSelectionRegion) {
 409             const QString text = textInfo->staticText.text();
 410             rect.setWidth(m_customizedFontMetrics.width(text) + 2 * option.padding);
 411         }
 412
 413         return rect;
 414     }
 415
 416     default:
 417         break;
 418     }
 419
 420     return m_textRect;
 421 }
 422
 423 QRectF KStandardItemListWidget::expansionToggleRect() const
 424 {
 425     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 426     return m_isExpandable ? m_expansionArea : QRectF();
 427 }
 428
 429 QRectF KStandardItemListWidget::selectionToggleRect() const
 430 {
 431     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 432
 433     const int iconHeight = styleOption().iconSize;
 434
 435     int toggleSize = KIconLoader::SizeSmall;
 436     if (iconHeight >= KIconLoader::SizeEnormous) {
 437         toggleSize = KIconLoader::SizeMedium;
 438     } else if (iconHeight >= KIconLoader::SizeLarge) {
 439         toggleSize = KIconLoader::SizeSmallMedium;
 440     }
 441
 442     QPointF pos = iconRect().topLeft();
 443
 444     // If the selection toggle has a very small distance to the
 445     // widget borders, the size of the selection toggle will get
 446     // increased to prevent an accidental clicking of the item
 447     // when trying to hit the toggle.
 448     const int widgetHeight = size().height();
 449     const int widgetWidth = size().width();
 450     const int minMargin = 2;
 451
 452     if (toggleSize + minMargin * 2 >= widgetHeight) {
 453         pos.rx() -= (widgetHeight - toggleSize) / 2;
 454         toggleSize = widgetHeight;
 455         pos.setY(0);
 456     }
 457     if (toggleSize + minMargin * 2 >= widgetWidth) {
 458         pos.ry() -= (widgetWidth - toggleSize) / 2;
 459         toggleSize = widgetWidth;
 460         pos.setX(0);
 461     }
 462
 463     return QRectF(pos, QSizeF(toggleSize, toggleSize));
 464 }
 465
 466 QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option,
 467                                                   QWidget* widget)
 468 {
 469     QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget);
 470     if (m_layout != DetailsLayout) {
 471         return pixmap;
 472     }
 473
 474     // Only return the content of the text-column as pixmap
 475     const int leftClip = m_pixmapPos.x();
 476
 477     const TextInfo* textInfo = m_textInfo.value("text");
 478     const int rightClip = textInfo->pos.x() +
 479                           textInfo->staticText.size().width() +
 480                           2 * styleOption().padding;
 481
 482     QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height());
 483     clippedPixmap.fill(Qt::transparent);
 484
 485     QPainter painter(&clippedPixmap);
 486     painter.drawPixmap(-leftClip, 0, pixmap);
 487
 488     return clippedPixmap;
 489 }
 490
 491
 492 KItemListWidgetInformant* KStandardItemListWidget::createInformant()
 493 {
 494     return new KStandardItemListWidgetInformant();
 495 }
 496
 497 void KStandardItemListWidget::invalidateCache()
 498 {
 499     m_dirtyLayout = true;
 500     m_dirtyContent = true;
 501 }
 502
 503 void KStandardItemListWidget::refreshCache()
 504 {
 505 }
 506
 507 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray& role) const
 508 {
 509     Q_UNUSED(role);
 510     return false;
 511 }
 512
 513 bool KStandardItemListWidget::isHidden() const
 514 {
 515     return false;
 516 }
 517
 518 QFont KStandardItemListWidget::customizedFont(const QFont& baseFont) const
 519 {
 520     return baseFont;
 521 }
 522
 523 QPalette::ColorRole KStandardItemListWidget::normalTextColorRole() const
 524 {
 525     return QPalette::Text;
 526 }
 527
 528 void KStandardItemListWidget::setTextColor(const QColor& color)
 529 {
 530     if (color != m_customTextColor) {
 531         m_customTextColor = color;
 532         updateAdditionalInfoTextColor();
 533         update();
 534     }
 535 }
 536
 537 QColor KStandardItemListWidget::textColor() const
 538 {
 539     if (!isSelected()) {
 540         if (m_isHidden) {
 541             return m_additionalInfoTextColor;
 542         } else if (m_customTextColor.isValid()) {
 543             return m_customTextColor;
 544         }
 545     }
 546
 547     const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
 548     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : normalTextColorRole();
 549     return styleOption().palette.color(group, role);
 550 }
 551
 552 void KStandardItemListWidget::setOverlay(const QPixmap& overlay)
 553 {
 554     m_overlay = overlay;
 555     m_dirtyContent = true;
 556     update();
 557 }
 558
 559 QPixmap KStandardItemListWidget::overlay() const
 560 {
 561     return m_overlay;
 562 }
 563
 564
 565 QString KStandardItemListWidget::roleText(const QByteArray& role,
 566                                           const QHash<QByteArray, QVariant>& values) const
 567 {
 568     return static_cast<const KStandardItemListWidgetInformant*>(informant())->roleText(role, values);
 569 }
 570
 571 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
 572                                           const QSet<QByteArray>& roles)
 573 {
 574     Q_UNUSED(current);
 575
 576     m_dirtyContent = true;
 577
 578     QSet<QByteArray> dirtyRoles;
 579     if (roles.isEmpty()) {
 580         dirtyRoles = visibleRoles().toSet();
 581     } else {
 582         dirtyRoles = roles;
 583     }
 584
 585     // The icon-state might depend from other roles and hence is
 586     // marked as dirty whenever a role has been changed
 587     dirtyRoles.insert("iconPixmap");
 588     dirtyRoles.insert("iconName");
 589
 590     QSetIterator<QByteArray> it(dirtyRoles);
 591     while (it.hasNext()) {
 592         const QByteArray& role = it.next();
 593         m_dirtyContentRoles.insert(role);
 594     }
 595 }
 596
 597 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
 598                                               const QList<QByteArray>& previous)
 599 {
 600     Q_UNUSED(previous);
 601     m_sortedVisibleRoles = current;
 602     m_dirtyLayout = true;
 603 }
 604
 605 void KStandardItemListWidget::columnWidthChanged(const QByteArray& role,
 606                                              qreal current,
 607                                              qreal previous)
 608 {
 609     Q_UNUSED(role);
 610     Q_UNUSED(current);
 611     Q_UNUSED(previous);
 612     m_dirtyLayout = true;
 613 }
 614
 615 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
 616                                              const KItemListStyleOption& previous)
 617 {
 618     Q_UNUSED(current);
 619     Q_UNUSED(previous);
 620     updateAdditionalInfoTextColor();
 621     m_dirtyLayout = true;
 622 }
 623
 624 void KStandardItemListWidget::hoveredChanged(bool hovered)
 625 {
 626     Q_UNUSED(hovered);
 627     m_dirtyLayout = true;
 628 }
 629
 630 void KStandardItemListWidget::selectedChanged(bool selected)
 631 {
 632     Q_UNUSED(selected);
 633     updateAdditionalInfoTextColor();
 634     m_dirtyContent = true;
 635 }
 636
 637 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
 638 {
 639     Q_UNUSED(current);
 640     Q_UNUSED(previous);
 641     m_dirtyLayout = true;
 642 }
 643
 644 int KStandardItemListWidget::selectionLength(const QString& text) const
 645 {
 646     return text.length();
 647 }
 648
 649 void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
 650 {
 651     Q_UNUSED(previous);
 652
 653     QGraphicsView* parent = scene()->views()[0];
 654     if (current.isEmpty() || !parent || current != "text") {
 655         if (m_roleEditor) {
 656             emit roleEditingCanceled(index(), current, data().value(current));
 657
 658             disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(QByteArray,QVariant)),
 659                        this, SLOT(slotRoleEditingCanceled(QByteArray,QVariant)));
 660             disconnect(m_roleEditor, SIGNAL(roleEditingFinished(QByteArray,QVariant)),
 661                        this, SLOT(slotRoleEditingFinished(QByteArray,QVariant)));
 662
 663             if (m_oldRoleEditor) {
 664                 m_oldRoleEditor->deleteLater();
 665             }
 666             m_oldRoleEditor = m_roleEditor;
 667             m_roleEditor->hide();
 668             m_roleEditor = 0;
 669         }
 670         return;
 671     }
 672
 673     Q_ASSERT(!m_roleEditor);
 674
 675     const TextInfo* textInfo = m_textInfo.value("text");
 676
 677     m_roleEditor = new KItemListRoleEditor(parent);
 678     m_roleEditor->setRole(current);
 679     m_roleEditor->setFont(styleOption().font);
 680
 681     const QString text = data().value(current).toString();
 682     m_roleEditor->setPlainText(text);
 683
 684     QTextOption textOption = textInfo->staticText.textOption();
 685     m_roleEditor->document()->setDefaultTextOption(textOption);
 686
 687     const int textSelectionLength = selectionLength(text);
 688
 689     if (textSelectionLength > 0) {
 690         QTextCursor cursor = m_roleEditor->textCursor();
 691         cursor.movePosition(QTextCursor::StartOfBlock);
 692         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength);
 693         m_roleEditor->setTextCursor(cursor);
 694     }
 695
 696     connect(m_roleEditor, SIGNAL(roleEditingCanceled(QByteArray,QVariant)),
 697             this, SLOT(slotRoleEditingCanceled(QByteArray,QVariant)));
 698     connect(m_roleEditor, SIGNAL(roleEditingFinished(QByteArray,QVariant)),
 699             this, SLOT(slotRoleEditingFinished(QByteArray,QVariant)));
 700
 701     // Adjust the geometry of the editor
 702     QRectF rect = roleEditingRect(current);
 703     const int frameWidth = m_roleEditor->frameWidth();
 704     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 705     rect.translate(pos());
 706     if (rect.right() > parent->width()) {
 707         rect.setWidth(parent->width() - rect.left());
 708     }
 709     m_roleEditor->setGeometry(rect.toRect());
 710     m_roleEditor->show();
 711     m_roleEditor->setFocus();
 712 }
 713
 714 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 715 {
 716     if (m_roleEditor) {
 717         setEditedRole(QByteArray());
 718         Q_ASSERT(!m_roleEditor);
 719     }
 720
 721     KItemListWidget::resizeEvent(event);
 722
 723     m_dirtyLayout = true;
 724 }
 725
 726 void KStandardItemListWidget::showEvent(QShowEvent* event)
 727 {
 728     KItemListWidget::showEvent(event);
 729
 730     // Listen to changes of the clipboard to mark the item as cut/uncut
 731     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 732
 733     const KUrl itemUrl = data().value("url").value<KUrl>();
 734     m_isCut = clipboard->isCut(itemUrl);
 735
 736     connect(clipboard, SIGNAL(cutItemsChanged()),
 737             this, SLOT(slotCutItemsChanged()));
 738 }
 739
 740 void KStandardItemListWidget::hideEvent(QHideEvent* event)
 741 {
 742     disconnect(KFileItemClipboard::instance(), SIGNAL(cutItemsChanged()),
 743                this, SLOT(slotCutItemsChanged()));
 744
 745     KItemListWidget::hideEvent(event);
 746 }
 747
 748 void KStandardItemListWidget::slotCutItemsChanged()
 749 {
 750     const KUrl itemUrl = data().value("url").value<KUrl>();
 751     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 752     if (m_isCut != isCut) {
 753         m_isCut = isCut;
 754         m_pixmap = QPixmap();
 755         m_dirtyContent = true;
 756         update();
 757     }
 758 }
 759
 760 void KStandardItemListWidget::slotRoleEditingCanceled(const QByteArray& role,
 761                                                       const QVariant& value)
 762 {
 763     closeRoleEditor();
 764     emit roleEditingCanceled(index(), role, value);
 765     setEditedRole(QByteArray());
 766 }
 767
 768 void KStandardItemListWidget::slotRoleEditingFinished(const QByteArray& role,
 769                                                       const QVariant& value)
 770 {
 771     closeRoleEditor();
 772     emit roleEditingFinished(index(), role, value);
 773     setEditedRole(QByteArray());
 774 }
 775
 776 void KStandardItemListWidget::triggerCacheRefreshing()
 777 {
 778     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 779         return;
 780     }
 781
 782     refreshCache();
 783
 784     const QHash<QByteArray, QVariant> values = data();
 785     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
 786     m_isHidden = isHidden();
 787     m_customizedFont = customizedFont(styleOption().font);
 788     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
 789
 790     updateExpansionArea();
 791     updateTextsCache();
 792     updatePixmapCache();
 793
 794     m_dirtyLayout = false;
 795     m_dirtyContent = false;
 796     m_dirtyContentRoles.clear();
 797 }
 798
 799 void KStandardItemListWidget::updateExpansionArea()
 800 {
 801     if (m_supportsItemExpanding) {
 802         const QHash<QByteArray, QVariant> values = data();
 803         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 804         if (expandedParentsCount >= 0) {
 805             const qreal widgetHeight = size().height();
 806             const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2;
 807             const qreal x = expandedParentsCount * widgetHeight + inc;
 808             const qreal y = inc;
 809             m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall);
 810             return;
 811         }
 812     }
 813
 814     m_expansionArea = QRectF();
 815 }
 816
 817 void KStandardItemListWidget::updatePixmapCache()
 818 {
 819     // Precondition: Requires already updated m_textPos values to calculate
 820     // the remaining height when the alignment is vertical.
 821
 822     const QSizeF widgetSize = size();
 823     const bool iconOnTop = (m_layout == IconsLayout);
 824     const KItemListStyleOption& option = styleOption();
 825     const qreal padding = option.padding;
 826
 827     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize;
 828     const int maxIconHeight = option.iconSize;
 829
 830     const QHash<QByteArray, QVariant> values = data();
 831
 832     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
 833     if (!updatePixmap && m_dirtyContent) {
 834         updatePixmap = m_dirtyContentRoles.isEmpty()
 835                        || m_dirtyContentRoles.contains("iconPixmap")
 836                        || m_dirtyContentRoles.contains("iconName")
 837                        || m_dirtyContentRoles.contains("iconOverlays");
 838     }
 839
 840     if (updatePixmap) {
 841         m_pixmap = values["iconPixmap"].value<QPixmap>();
 842         if (m_pixmap.isNull()) {
 843             // Use the icon that fits to the MIME-type
 844             QString iconName = values["iconName"].toString();
 845             if (iconName.isEmpty()) {
 846                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
 847                 // use a generic icon as fallback
 848                 iconName = QLatin1String("unknown");
 849             }
 850             const QStringList overlays = values["iconOverlays"].toStringList();
 851             m_pixmap = pixmapForIcon(iconName, overlays, maxIconHeight);
 852         } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
 853             // A custom pixmap has been applied. Assure that the pixmap
 854             // is scaled to the maximum available size.
 855             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
 856         }
 857
 858         if (m_isCut) {
 859             KIconEffect* effect = KIconLoader::global()->iconEffect();
 860             m_pixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 861         }
 862
 863         if (m_isHidden) {
 864             KIconEffect::semiTransparent(m_pixmap);
 865         }
 866
 867         if (isSelected()) {
 868             const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
 869             QImage image = m_pixmap.toImage();
 870             KIconEffect::colorize(image, color, 0.8f);
 871             m_pixmap = QPixmap::fromImage(image);
 872         }
 873     }
 874
 875     if (!m_overlay.isNull()) {
 876         QPainter painter(&m_pixmap);
 877         painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay);
 878     }
 879
 880     int scaledIconSize = 0;
 881     if (iconOnTop) {
 882         const TextInfo* textInfo = m_textInfo.value("text");
 883         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
 884     } else {
 885         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
 886         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
 887         scaledIconSize = (requiredTextHeight < maxIconHeight) ?
 888                            widgetSize.height() - 2 * padding : maxIconHeight;
 889     }
 890
 891     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
 892     const int maxScaledIconHeight = scaledIconSize;
 893
 894     m_scaledPixmapSize = m_pixmap.size();
 895     m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio);
 896
 897     if (iconOnTop) {
 898         // Center horizontally and align on bottom within the icon-area
 899         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2);
 900         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
 901     } else {
 902         // Center horizontally and vertically within the icon-area
 903         const TextInfo* textInfo = m_textInfo.value("text");
 904         m_pixmapPos.setX(textInfo->pos.x() - 2 * padding
 905                          - (scaledIconSize + m_scaledPixmapSize.width()) / 2);
 906         m_pixmapPos.setY(padding
 907                          + (scaledIconSize - m_scaledPixmapSize.height()) / 2);
 908     }
 909
 910     m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
 911
 912     // Prepare the pixmap that is used when the item gets hovered
 913     if (isHovered()) {
 914         m_hoverPixmap = m_pixmap;
 915         KIconEffect* effect = KIconLoader::global()->iconEffect();
 916         // In the KIconLoader terminology, active = hover.
 917         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
 918             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
 919         } else {
 920             m_hoverPixmap = m_pixmap;
 921         }
 922     } else if (hoverOpacity() <= 0.0) {
 923         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
 924         m_hoverPixmap = QPixmap();
 925     }
 926 }
 927
 928 void KStandardItemListWidget::updateTextsCache()
 929 {
 930     QTextOption textOption;
 931     switch (m_layout) {
 932     case IconsLayout:
 933         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 934         textOption.setAlignment(Qt::AlignHCenter);
 935         break;
 936     case CompactLayout:
 937     case DetailsLayout:
 938         textOption.setAlignment(Qt::AlignLeft);
 939         textOption.setWrapMode(QTextOption::NoWrap);
 940         break;
 941     default:
 942         Q_ASSERT(false);
 943         break;
 944     }
 945
 946     qDeleteAll(m_textInfo);
 947     m_textInfo.clear();
 948     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
 949         TextInfo* textInfo = new TextInfo();
 950         textInfo->staticText.setTextFormat(Qt::PlainText);
 951         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
 952         textInfo->staticText.setTextOption(textOption);
 953         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
 954     }
 955
 956     switch (m_layout) {
 957     case IconsLayout:   updateIconsLayoutTextCache(); break;
 958     case CompactLayout: updateCompactLayoutTextCache(); break;
 959     case DetailsLayout: updateDetailsLayoutTextCache(); break;
 960     default: Q_ASSERT(false); break;
 961     }
 962
 963     const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 964     if (ratingTextInfo) {
 965         // The text of the rating-role has been set to empty to get
 966         // replaced by a rating-image showing the rating as stars.
 967         const KItemListStyleOption& option = styleOption();
 968         QSizeF ratingSize = preferredRatingSize(option);
 969
 970         const qreal availableWidth = (m_layout == DetailsLayout)
 971                                      ? columnWidth("rating") - columnPadding(option)
 972                                      : size().width();
 973         if (ratingSize.width() > availableWidth) {
 974             ratingSize.rwidth() = availableWidth;
 975         }
 976         m_rating = QPixmap(ratingSize.toSize());
 977         m_rating.fill(Qt::transparent);
 978
 979         QPainter painter(&m_rating);
 980         const QRect rect(0, 0, m_rating.width(), m_rating.height());
 981         const int rating = data().value("rating").toInt();
 982         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
 983     } else if (!m_rating.isNull()) {
 984         m_rating = QPixmap();
 985     }
 986 }
 987
 988 void KStandardItemListWidget::updateIconsLayoutTextCache()
 989 {
 990     //      +------+
 991     //      | Icon |
 992     //      +------+
 993     //
 994     //    Name role that
 995     // might get wrapped above
 996     //    several lines.
 997     //  Additional role 1
 998     //  Additional role 2
 999
1000     const QHash<QByteArray, QVariant> values = data();
1001
1002     const KItemListStyleOption& option = styleOption();
1003     const qreal padding = option.padding;
1004     const qreal maxWidth = size().width() - 2 * padding;
1005     const qreal widgetHeight = size().height();
1006     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1007
1008     // Initialize properties for the "text" role. It will be used as anchor
1009     // for initializing the position of the other roles.
1010     TextInfo* nameTextInfo = m_textInfo.value("text");
1011     const QString nameText = KStringHandler::preProcessWrap(values["text"].toString());
1012     nameTextInfo->staticText.setText(nameText);
1013
1014     // Calculate the number of lines required for the name and the required width
1015     qreal nameWidth = 0;
1016     qreal nameHeight = 0;
1017     QTextLine line;
1018
1019     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
1020     const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount;
1021
1022     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
1023     layout.setTextOption(nameTextInfo->staticText.textOption());
1024     layout.beginLayout();
1025     int nameLineIndex = 0;
1026     while ((line = layout.createLine()).isValid()) {
1027         line.setLineWidth(maxWidth);
1028         nameWidth = qMax(nameWidth, line.naturalTextWidth());
1029         nameHeight += line.height();
1030
1031         ++nameLineIndex;
1032         if (nameLineIndex == maxNameLines) {
1033             // The maximum number of textlines has been reached. If this is
1034             // the case provide an elided text if necessary.
1035             const int textLength = line.textStart() + line.textLength();
1036             if (textLength < nameText.length()) {
1037                 // Elide the last line of the text
1038                 QString lastTextLine = nameText.mid(line.textStart());
1039                 lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine,
1040                                                                   Qt::ElideRight,
1041                                                                   maxWidth);
1042                 const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
1043                 nameTextInfo->staticText.setText(elidedText);
1044
1045                 const qreal lastLineWidth = m_customizedFontMetrics.boundingRect(lastTextLine).width();
1046                 nameWidth = qMax(nameWidth, lastLineWidth);
1047             }
1048             break;
1049         }
1050     }
1051     layout.endLayout();
1052
1053     // Use one line for each additional information
1054     nameTextInfo->staticText.setTextWidth(maxWidth);
1055     nameTextInfo->pos = QPointF(padding, widgetHeight -
1056                                          nameHeight -
1057                                          additionalRolesCount * lineSpacing -
1058                                          padding);
1059     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
1060                         nameTextInfo->pos.y(),
1061                         nameWidth,
1062                         nameHeight);
1063
1064     // Calculate the position for each additional information
1065     qreal y = nameTextInfo->pos.y() + nameHeight;
1066     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1067         if (role == "text") {
1068             continue;
1069         }
1070
1071         const QString text = roleText(role, values);
1072         TextInfo* textInfo = m_textInfo.value(role);
1073         textInfo->staticText.setText(text);
1074
1075         qreal requiredWidth = 0;
1076
1077         QTextLayout layout(text, m_customizedFont);
1078         QTextOption textOption;
1079         textOption.setWrapMode(QTextOption::NoWrap);
1080         layout.setTextOption(textOption);
1081
1082         layout.beginLayout();
1083         QTextLine textLine = layout.createLine();
1084         if (textLine.isValid()) {
1085             textLine.setLineWidth(maxWidth);
1086             requiredWidth = textLine.naturalTextWidth();
1087             if (requiredWidth > maxWidth) {
1088                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1089                 textInfo->staticText.setText(elidedText);
1090                 requiredWidth = m_customizedFontMetrics.width(elidedText);
1091             } else if (role == "rating") {
1092                 // Use the width of the rating pixmap, because the rating text is empty.
1093                 requiredWidth = m_rating.width();
1094             }
1095         }
1096         layout.endLayout();
1097
1098         textInfo->pos = QPointF(padding, y);
1099         textInfo->staticText.setTextWidth(maxWidth);
1100
1101         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1102         m_textRect |= textRect;
1103
1104         y += lineSpacing;
1105     }
1106
1107     // Add a padding to the text rectangle
1108     m_textRect.adjust(-padding, -padding, padding, padding);
1109 }
1110
1111 void KStandardItemListWidget::updateCompactLayoutTextCache()
1112 {
1113     // +------+  Name role
1114     // | Icon |  Additional role 1
1115     // +------+  Additional role 2
1116
1117     const QHash<QByteArray, QVariant> values = data();
1118
1119     const KItemListStyleOption& option = styleOption();
1120     const qreal widgetHeight = size().height();
1121     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1122     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1123     const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize;
1124
1125     qreal maximumRequiredTextWidth = 0;
1126     const qreal x = option.padding * 3 + scaledIconSize;
1127     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1128     const qreal maxWidth = size().width() - x - option.padding;
1129     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1130         const QString text = roleText(role, values);
1131         TextInfo* textInfo = m_textInfo.value(role);
1132         textInfo->staticText.setText(text);
1133
1134         qreal requiredWidth = m_customizedFontMetrics.width(text);
1135         if (requiredWidth > maxWidth) {
1136             requiredWidth = maxWidth;
1137             const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1138             textInfo->staticText.setText(elidedText);
1139         }
1140
1141         textInfo->pos = QPointF(x, y);
1142         textInfo->staticText.setTextWidth(maxWidth);
1143
1144         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1145
1146         y += lineSpacing;
1147     }
1148
1149     m_textRect = QRectF(x - 2 * option.padding, 0, maximumRequiredTextWidth + 3 * option.padding, widgetHeight);
1150 }
1151
1152 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1153 {
1154     // Precondition: Requires already updated m_expansionArea
1155     // to determine the left position.
1156
1157     // +------+
1158     // | Icon |  Name role   Additional role 1   Additional role 2
1159     // +------+
1160     m_textRect = QRectF();
1161
1162     const KItemListStyleOption& option = styleOption();
1163     const QHash<QByteArray, QVariant> values = data();
1164
1165     const qreal widgetHeight = size().height();
1166     const int scaledIconSize = widgetHeight - 2 * option.padding;
1167     const int fontHeight = m_customizedFontMetrics.height();
1168
1169     const qreal columnWidthInc = columnPadding(option);
1170     qreal firstColumnInc = scaledIconSize;
1171     if (m_supportsItemExpanding) {
1172         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
1173     } else {
1174         firstColumnInc += option.padding;
1175     }
1176
1177     qreal x = firstColumnInc;
1178     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1179
1180     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1181         QString text = roleText(role, values);
1182
1183         // Elide the text in case it does not fit into the available column-width
1184         qreal requiredWidth = m_customizedFontMetrics.width(text);
1185         const qreal roleWidth = columnWidth(role);
1186         qreal availableTextWidth = roleWidth - columnWidthInc;
1187
1188         const bool isTextRole = (role == "text");
1189         if (isTextRole) {
1190             availableTextWidth -= firstColumnInc;
1191         }
1192
1193         if (requiredWidth > availableTextWidth) {
1194             text = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1195             requiredWidth = m_customizedFontMetrics.width(text);
1196         }
1197
1198         TextInfo* textInfo = m_textInfo.value(role);
1199         textInfo->staticText.setText(text);
1200         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
1201         x += roleWidth;
1202
1203         if (isTextRole) {
1204             const qreal textWidth = option.extendedSelectionRegion
1205                                     ? size().width() - textInfo->pos.x()
1206                                     : requiredWidth + 2 * option.padding;
1207             m_textRect = QRectF(textInfo->pos.x() - 2 * option.padding, 0,
1208                                 textWidth + option.padding, size().height());
1209
1210             // The column after the name should always be aligned on the same x-position independent
1211             // from the expansion-level shown in the name column
1212             x -= firstColumnInc;
1213         } else if (isRoleRightAligned(role)) {
1214             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1215         }
1216     }
1217 }
1218
1219 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1220 {
1221     QColor c1;
1222     if (m_customTextColor.isValid()) {
1223         c1 = m_customTextColor;
1224     } else if (isSelected() && m_layout != DetailsLayout) {
1225         c1 = styleOption().palette.highlightedText().color();
1226     } else {
1227         c1 = styleOption().palette.text().color();
1228     }
1229
1230     // For the color of the additional info the inactive text color
1231     // is not used as this might lead to unreadable text for some color schemes. Instead
1232     // the text color c1 is slightly mixed with the background color.
1233     const QColor c2 = styleOption().palette.base().color();
1234     const int p1 = 70;
1235     const int p2 = 100 - p1;
1236     m_additionalInfoTextColor = QColor((c1.red()   * p1 + c2.red()   * p2) / 100,
1237                                        (c1.green() * p1 + c2.green() * p2) / 100,
1238                                        (c1.blue()  * p1 + c2.blue()  * p2) / 100);
1239 }
1240
1241 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
1242 {
1243     if (m_scaledPixmapSize != pixmap.size()) {
1244         QPixmap scaledPixmap = pixmap;
1245         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
1246         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1247
1248 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1249         painter->setPen(Qt::blue);
1250         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1251 #endif
1252     } else {
1253         painter->drawPixmap(m_pixmapPos, pixmap);
1254     }
1255 }
1256
1257 void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
1258 {
1259     const int siblingSize = size().height();
1260     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1261     QRect siblingRect(x, 0, siblingSize, siblingSize);
1262
1263     QStyleOption option;
1264     option.palette.setColor(QPalette::Text, option.palette.color(normalTextColorRole()));
1265     bool isItemSibling = true;
1266
1267     const QBitArray siblings = siblingsInformation();
1268     for (int i = siblings.count() - 1; i >= 0; --i) {
1269         option.rect = siblingRect;
1270         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1271
1272         if (isItemSibling) {
1273             option.state |= QStyle::State_Item;
1274             if (m_isExpandable) {
1275                 option.state |= QStyle::State_Children;
1276             }
1277             if (data()["isExpanded"].toBool()) {
1278                 option.state |= QStyle::State_Open;
1279             }
1280             isItemSibling = false;
1281         }
1282
1283         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1284
1285         siblingRect.translate(-siblingRect.width(), 0);
1286     }
1287 }
1288
1289 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
1290 {
1291     const TextInfo* textInfo = m_textInfo.value(role);
1292     if (!textInfo) {
1293         return QRectF();
1294     }
1295
1296     QRectF rect(textInfo->pos, textInfo->staticText.size());
1297     if (m_layout == DetailsLayout) {
1298         rect.setWidth(columnWidth(role) - rect.x());
1299     }
1300
1301     return rect;
1302 }
1303
1304 void KStandardItemListWidget::closeRoleEditor()
1305 {
1306     disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(QByteArray,QVariant)),
1307                this, SLOT(slotRoleEditingCanceled(QByteArray,QVariant)));
1308     disconnect(m_roleEditor, SIGNAL(roleEditingFinished(QByteArray,QVariant)),
1309                this, SLOT(slotRoleEditingFinished(QByteArray,QVariant)));
1310
1311     if (m_roleEditor->hasFocus()) {
1312         // If the editing was not ended by a FocusOut event, we have
1313         // to transfer the keyboard focus back to the KItemListContainer.
1314         scene()->views()[0]->parentWidget()->setFocus();
1315     }
1316
1317     if (m_oldRoleEditor) {
1318         m_oldRoleEditor->deleteLater();
1319     }
1320     m_oldRoleEditor = m_roleEditor;
1321     m_roleEditor->hide();
1322     m_roleEditor = 0;
1323 }
1324
1325 QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, const QStringList& overlays, int size)
1326 {
1327     const QString key = "KStandardItemListWidget:" % name % ":" % overlays.join(":") % ":" % QString::number(size);
1328     QPixmap pixmap;
1329
1330     if (!QPixmapCache::find(key, pixmap)) {
1331         const KIcon icon(name);
1332
1333         int requestedSize;
1334         if (size <= KIconLoader::SizeSmall) {
1335             requestedSize = KIconLoader::SizeSmall;
1336         } else if (size <= KIconLoader::SizeSmallMedium) {
1337             requestedSize = KIconLoader::SizeSmallMedium;
1338         } else if (size <= KIconLoader::SizeMedium) {
1339             requestedSize = KIconLoader::SizeMedium;
1340         } else if (size <= KIconLoader::SizeLarge) {
1341             requestedSize = KIconLoader::SizeLarge;
1342         } else if (size <= KIconLoader::SizeHuge) {
1343             requestedSize = KIconLoader::SizeHuge;
1344         } else if (size <= KIconLoader::SizeEnormous) {
1345             requestedSize = KIconLoader::SizeEnormous;
1346         } else if (size <= KIconLoader::SizeEnormous * 2) {
1347             requestedSize = KIconLoader::SizeEnormous * 2;
1348         } else {
1349             requestedSize = size;
1350         }
1351
1352         pixmap = icon.pixmap(requestedSize, requestedSize);
1353         if (requestedSize != size) {
1354             KPixmapModifier::scale(pixmap, QSize(size, size));
1355         }
1356
1357         // Strangely KFileItem::overlays() returns empty string-values, so
1358         // we need to check first whether an overlay must be drawn at all.
1359         // It is more efficient to do it here, as KIconLoader::drawOverlays()
1360         // assumes that an overlay will be drawn and has some additional
1361         // setup time.
1362         foreach (const QString& overlay, overlays) {
1363             if (!overlay.isEmpty()) {
1364                 // There is at least one overlay, draw all overlays above m_pixmap
1365                 // and cancel the check
1366                 KIconLoader::global()->drawOverlays(overlays, pixmap, KIconLoader::Desktop);
1367                 break;
1368             }
1369         }
1370
1371         QPixmapCache::insert(key, pixmap);
1372     }
1373
1374     return pixmap;
1375 }
1376
1377 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption& option)
1378 {
1379     const qreal height = option.fontMetrics.ascent();
1380     return QSizeF(height * 5, height);
1381 }
1382
1383 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption& option)
1384 {
1385     return option.padding * 6;
1386 }
1387
1388 #include "kstandarditemlistwidget.moc"