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
  46 // #define KSTANDARDITEMLISTWIDGET_DEBUG
  47
  48 KStandardItemListWidgetInformant::KStandardItemListWidgetInformant() :
  49     KItemListWidgetInformant()
  50 {
  51 }
  52
  53 KStandardItemListWidgetInformant::~KStandardItemListWidgetInformant()
  54 {
  55 }
  56
  57 QSizeF KStandardItemListWidgetInformant::itemSizeHint(int index, const KItemListView* view) const
  58 {
  59     const QHash<QByteArray, QVariant> values = view->model()->data(index);
  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(values["text"].toString());
  66
  67         const qreal itemWidth = view->itemSize().width();
  68         const qreal maxWidth = itemWidth - 2 * option.padding;
  69         QTextLine line;
  70
  71         int emptyRolesCount = 0;
  72         foreach (const QByteArray& role, view->visibleRoles()) {
  73             const QString text = roleText(role, values);
  74             if (role != "text" && role != "rating" && text.isEmpty()) {
  75                 emptyRolesCount++;
  76             }
  77         }
  78
  79         // Calculate the number of lines required for wrapping the name
  80         QTextOption textOption(Qt::AlignHCenter);
  81         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
  82
  83         qreal textHeight = 0;
  84         QTextLayout layout(text, option.font);
  85         layout.setTextOption(textOption);
  86         layout.beginLayout();
  87         while ((line = layout.createLine()).isValid()) {
  88             line.setLineWidth(maxWidth);
  89             line.naturalTextWidth();
  90             textHeight += line.height();
  91         }
  92         layout.endLayout();
  93
  94         // Add one line for each additional information
  95         textHeight += (additionalRolesCount - emptyRolesCount) * option.fontMetrics.lineSpacing();
  96
  97         const qreal maxTextHeight = option.maxTextSize.height();
  98         if (maxTextHeight > 0 && textHeight > maxTextHeight) {
  99             textHeight = maxTextHeight;
 100         }
 101
 102         return QSizeF(itemWidth, textHeight + option.iconSize + option.padding * 3);
 103     }
 104
 105     case KStandardItemListWidget::CompactLayout: {
 106         // For each row exactly one role is shown. Calculate the maximum required width that is necessary
 107         // to show all roles without horizontal clipping.
 108         qreal maximumRequiredWidth = 0.0;
 109
 110         foreach (const QByteArray& role, view->visibleRoles()) {
 111             const QString text = roleText(role, values);
 112             const qreal requiredWidth = option.fontMetrics.width(text);
 113             maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth);
 114         }
 115
 116         qreal width = option.padding * 4 + option.iconSize + maximumRequiredWidth;
 117         const qreal maxWidth = option.maxTextSize.width();
 118         if (maxWidth > 0 && width > maxWidth) {
 119             width = maxWidth;
 120         }
 121         const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * option.fontMetrics.lineSpacing());
 122         return QSizeF(width, height);
 123     }
 124
 125     case KStandardItemListWidget::DetailsLayout: {
 126         const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 127         return QSizeF(-1, height);
 128     }
 129
 130     default:
 131         Q_ASSERT(false);
 132         break;
 133     }
 134
 135     return QSize();
 136 }
 137
 138 qreal KStandardItemListWidgetInformant::preferredRoleColumnWidth(const QByteArray& role,
 139                                                                  int index,
 140                                                                  const KItemListView* view) const
 141 {
 142     const QHash<QByteArray, QVariant> values = view->model()->data(index);
 143     const KItemListStyleOption& option = view->styleOption();
 144
 145     const QString text = roleText(role, values);
 146     qreal width = KStandardItemListWidget::columnPadding(option);
 147
 148     if (role == "rating") {
 149         width += KStandardItemListWidget::preferredRatingSize(option).width();
 150     } else {
 151         width += option.fontMetrics.width(text);
 152
 153         if (role == "text") {
 154             if (view->supportsItemExpanding()) {
 155                 // Increase the width by the expansion-toggle and the current expansion level
 156                 const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 157                 const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 158                 width += (expandedParentsCount + 1) * height;
 159             }
 160
 161             // Increase the width by the required space for the icon
 162             width += option.padding * 2 + option.iconSize;
 163         }
 164     }
 165
 166     return width;
 167 }
 168
 169 QString KStandardItemListWidgetInformant::roleText(const QByteArray& role,
 170                                                    const QHash<QByteArray, QVariant>& values) const
 171 {
 172     if (role == "rating") {
 173         // Always use an empty text, as the rating is shown by the image m_rating.
 174         return QString();
 175     }
 176     return values.value(role).toString();
 177 }
 178
 179 KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
 180     KItemListWidget(informant, parent),
 181     m_isCut(false),
 182     m_isHidden(false),
 183     m_customizedFont(),
 184     m_customizedFontMetrics(m_customizedFont),
 185     m_isExpandable(false),
 186     m_supportsItemExpanding(false),
 187     m_dirtyLayout(true),
 188     m_dirtyContent(true),
 189     m_dirtyContentRoles(),
 190     m_layout(IconsLayout),
 191     m_pixmapPos(),
 192     m_pixmap(),
 193     m_scaledPixmapSize(),
 194     m_iconRect(),
 195     m_hoverPixmap(),
 196     m_textInfo(),
 197     m_textRect(),
 198     m_sortedVisibleRoles(),
 199     m_expansionArea(),
 200     m_customTextColor(),
 201     m_additionalInfoTextColor(),
 202     m_overlay(),
 203     m_rating(),
 204     m_roleEditor(0)
 205 {
 206 }
 207
 208 KStandardItemListWidget::~KStandardItemListWidget()
 209 {
 210     qDeleteAll(m_textInfo);
 211     m_textInfo.clear();
 212
 213     delete m_roleEditor;
 214 }
 215
 216 void KStandardItemListWidget::setLayout(Layout layout)
 217 {
 218     if (m_layout != layout) {
 219         m_layout = layout;
 220         m_dirtyLayout = true;
 221         updateAdditionalInfoTextColor();
 222         update();
 223     }
 224 }
 225
 226 KStandardItemListWidget::Layout KStandardItemListWidget::layout() const
 227 {
 228     return m_layout;
 229 }
 230
 231 void KStandardItemListWidget::setSupportsItemExpanding(bool supportsItemExpanding)
 232 {
 233     if (m_supportsItemExpanding != supportsItemExpanding) {
 234         m_supportsItemExpanding = supportsItemExpanding;
 235         m_dirtyLayout = true;
 236         update();
 237     }
 238 }
 239
 240 bool KStandardItemListWidget::supportsItemExpanding() const
 241 {
 242     return m_supportsItemExpanding;
 243 }
 244
 245 void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
 246 {
 247     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 248
 249     KItemListWidget::paint(painter, option, widget);
 250
 251     if (!m_expansionArea.isEmpty()) {
 252         drawSiblingsInformation(painter);
 253     }
 254
 255     const KItemListStyleOption& itemListStyleOption = styleOption();
 256     if (isHovered()) {
 257         // Blend the unhovered and hovered pixmap if the hovering
 258         // animation is ongoing
 259         if (hoverOpacity() < 1.0) {
 260             drawPixmap(painter, m_pixmap);
 261         }
 262
 263         const qreal opacity = painter->opacity();
 264         painter->setOpacity(hoverOpacity() * opacity);
 265         drawPixmap(painter, m_hoverPixmap);
 266         painter->setOpacity(opacity);
 267     } else {
 268         drawPixmap(painter, m_pixmap);
 269     }
 270
 271     painter->setFont(m_customizedFont);
 272     painter->setPen(m_isHidden ? m_additionalInfoTextColor : textColor());
 273     const TextInfo* textInfo = m_textInfo.value("text");
 274     painter->drawStaticText(textInfo->pos, textInfo->staticText);
 275
 276     bool clipAdditionalInfoBounds = false;
 277     if (m_supportsItemExpanding) {
 278         // Prevent a possible overlapping of the additional-information texts
 279         // with the icon. This can happen if the user has minimized the width
 280         // of the name-column to a very small value.
 281         const qreal minX = m_pixmapPos.x() + m_pixmap.width() + 4 * itemListStyleOption.padding;
 282         if (textInfo->pos.x() + columnWidth("text") > minX) {
 283             clipAdditionalInfoBounds = true;
 284             painter->save();
 285             painter->setClipRect(minX, 0, size().width() - minX, size().height(), Qt::IntersectClip);
 286         }
 287     }
 288
 289     painter->setPen(m_additionalInfoTextColor);
 290     painter->setFont(m_customizedFont);
 291
 292     for (int i = 1; i < m_sortedVisibleRoles.count(); ++i) {
 293         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles[i]);
 294         painter->drawStaticText(textInfo->pos, textInfo->staticText);
 295     }
 296
 297     if (!m_rating.isNull()) {
 298         const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 299         QPointF pos = ratingTextInfo->pos;
 300         const Qt::Alignment align = ratingTextInfo->staticText.textOption().alignment();
 301         if (align & Qt::AlignHCenter) {
 302             pos.rx() += (size().width() - m_rating.width()) / 2 - 2;
 303         }
 304         painter->drawPixmap(pos, m_rating);
 305     }
 306
 307     if (clipAdditionalInfoBounds) {
 308         painter->restore();
 309     }
 310
 311 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
 312     painter->setBrush(Qt::NoBrush);
 313     painter->setPen(Qt::green);
 314     painter->drawRect(m_iconRect);
 315
 316     painter->setPen(Qt::red);
 317     painter->drawText(QPointF(0, m_customizedFontMetrics.height()), QString::number(index()));
 318     painter->drawRect(rect());
 319 #endif
 320 }
 321
 322 QRectF KStandardItemListWidget::iconRect() const
 323 {
 324     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 325     return m_iconRect;
 326 }
 327
 328 QRectF KStandardItemListWidget::textRect() const
 329 {
 330     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 331     return m_textRect;
 332 }
 333
 334 QRectF KStandardItemListWidget::textFocusRect() const
 335 {
 336     // In the compact- and details-layout a larger textRect() is returned to be aligned
 337     // with the iconRect(). This is useful to have a larger selection/hover-area
 338     // when having a quite large icon size but only one line of text. Still the
 339     // focus rectangle should be shown as narrow as possible around the text.
 340
 341     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 342
 343     switch (m_layout) {
 344     case CompactLayout: {
 345         QRectF rect = m_textRect;
 346         const TextInfo* topText    = m_textInfo.value(m_sortedVisibleRoles.first());
 347         const TextInfo* bottomText = m_textInfo.value(m_sortedVisibleRoles.last());
 348         rect.setTop(topText->pos.y());
 349         rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height());
 350         return rect;
 351     }
 352
 353     case DetailsLayout: {
 354         QRectF rect = m_textRect;
 355         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles.first());
 356         rect.setTop(textInfo->pos.y());
 357         rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height());
 358
 359         const KItemListStyleOption& option = styleOption();
 360         if (option.extendedSelectionRegion) {
 361             const QString text = textInfo->staticText.text();
 362             rect.setWidth(m_customizedFontMetrics.width(text) + 2 * option.padding);
 363         }
 364
 365         return rect;
 366     }
 367
 368     default:
 369         break;
 370     }
 371
 372     return m_textRect;
 373 }
 374
 375 QRectF KStandardItemListWidget::expansionToggleRect() const
 376 {
 377     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 378     return m_isExpandable ? m_expansionArea : QRectF();
 379 }
 380
 381 QRectF KStandardItemListWidget::selectionToggleRect() const
 382 {
 383     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 384
 385     const int iconHeight = styleOption().iconSize;
 386
 387     int toggleSize = KIconLoader::SizeSmall;
 388     if (iconHeight >= KIconLoader::SizeEnormous) {
 389         toggleSize = KIconLoader::SizeMedium;
 390     } else if (iconHeight >= KIconLoader::SizeLarge) {
 391         toggleSize = KIconLoader::SizeSmallMedium;
 392     }
 393
 394     QPointF pos = iconRect().topLeft();
 395
 396     // If the selection toggle has a very small distance to the
 397     // widget borders, the size of the selection toggle will get
 398     // increased to prevent an accidental clicking of the item
 399     // when trying to hit the toggle.
 400     const int widgetHeight = size().height();
 401     const int widgetWidth = size().width();
 402     const int minMargin = 2;
 403
 404     if (toggleSize + minMargin * 2 >= widgetHeight) {
 405         pos.rx() -= (widgetHeight - toggleSize) / 2;
 406         toggleSize = widgetHeight;
 407         pos.setY(0);
 408     }
 409     if (toggleSize + minMargin * 2 >= widgetWidth) {
 410         pos.ry() -= (widgetWidth - toggleSize) / 2;
 411         toggleSize = widgetWidth;
 412         pos.setX(0);
 413     }
 414
 415     return QRectF(pos, QSizeF(toggleSize, toggleSize));
 416 }
 417
 418 QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option,
 419                                                   QWidget* widget)
 420 {
 421     QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget);
 422     if (m_layout != DetailsLayout) {
 423         return pixmap;
 424     }
 425
 426     // Only return the content of the text-column as pixmap
 427     const int leftClip = m_pixmapPos.x();
 428
 429     const TextInfo* textInfo = m_textInfo.value("text");
 430     const int rightClip = textInfo->pos.x() +
 431                           textInfo->staticText.size().width() +
 432                           2 * styleOption().padding;
 433
 434     QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height());
 435     clippedPixmap.fill(Qt::transparent);
 436
 437     QPainter painter(&clippedPixmap);
 438     painter.drawPixmap(-leftClip, 0, pixmap);
 439
 440     return clippedPixmap;
 441 }
 442
 443
 444 KItemListWidgetInformant* KStandardItemListWidget::createInformant()
 445 {
 446     return new KStandardItemListWidgetInformant();
 447 }
 448
 449 void KStandardItemListWidget::invalidateCache()
 450 {
 451     m_dirtyLayout = true;
 452     m_dirtyContent = true;
 453 }
 454
 455 void KStandardItemListWidget::refreshCache()
 456 {
 457 }
 458
 459 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray& role) const
 460 {
 461     Q_UNUSED(role);
 462     return false;
 463 }
 464
 465 bool KStandardItemListWidget::isHidden() const
 466 {
 467     return false;
 468 }
 469
 470 QFont KStandardItemListWidget::customizedFont(const QFont& baseFont) const
 471 {
 472     return baseFont;
 473 }
 474
 475 QPalette::ColorRole KStandardItemListWidget::normalTextColorRole() const
 476 {
 477     return QPalette::Text;
 478 }
 479
 480 void KStandardItemListWidget::setTextColor(const QColor& color)
 481 {
 482     if (color != m_customTextColor) {
 483         m_customTextColor = color;
 484         updateAdditionalInfoTextColor();
 485         update();
 486     }
 487 }
 488
 489 QColor KStandardItemListWidget::textColor() const
 490 {
 491     if (m_customTextColor.isValid() && !isSelected()) {
 492         return m_customTextColor;
 493     }
 494
 495     const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
 496     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : normalTextColorRole();
 497     return styleOption().palette.color(group, role);
 498 }
 499
 500 void KStandardItemListWidget::setOverlay(const QPixmap& overlay)
 501 {
 502     m_overlay = overlay;
 503     m_dirtyContent = true;
 504     update();
 505 }
 506
 507 QPixmap KStandardItemListWidget::overlay() const
 508 {
 509     return m_overlay;
 510 }
 511
 512
 513 QString KStandardItemListWidget::roleText(const QByteArray& role,
 514                                           const QHash<QByteArray, QVariant>& values) const
 515 {
 516     return static_cast<const KStandardItemListWidgetInformant*>(informant())->roleText(role, values);
 517 }
 518
 519 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
 520                                           const QSet<QByteArray>& roles)
 521 {
 522     Q_UNUSED(current);
 523
 524     m_dirtyContent = true;
 525
 526     QSet<QByteArray> dirtyRoles;
 527     if (roles.isEmpty()) {
 528         dirtyRoles = visibleRoles().toSet();
 529     } else {
 530         dirtyRoles = roles;
 531     }
 532
 533     // The icon-state might depend from other roles and hence is
 534     // marked as dirty whenever a role has been changed
 535     dirtyRoles.insert("iconPixmap");
 536     dirtyRoles.insert("iconName");
 537
 538     QSetIterator<QByteArray> it(dirtyRoles);
 539     while (it.hasNext()) {
 540         const QByteArray& role = it.next();
 541         m_dirtyContentRoles.insert(role);
 542     }
 543 }
 544
 545 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
 546                                               const QList<QByteArray>& previous)
 547 {
 548     Q_UNUSED(previous);
 549     m_sortedVisibleRoles = current;
 550     m_dirtyLayout = true;
 551 }
 552
 553 void KStandardItemListWidget::columnWidthChanged(const QByteArray& role,
 554                                              qreal current,
 555                                              qreal previous)
 556 {
 557     Q_UNUSED(role);
 558     Q_UNUSED(current);
 559     Q_UNUSED(previous);
 560     m_dirtyLayout = true;
 561 }
 562
 563 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
 564                                              const KItemListStyleOption& previous)
 565 {
 566     Q_UNUSED(current);
 567     Q_UNUSED(previous);
 568     updateAdditionalInfoTextColor();
 569     m_dirtyLayout = true;
 570 }
 571
 572 void KStandardItemListWidget::hoveredChanged(bool hovered)
 573 {
 574     Q_UNUSED(hovered);
 575     m_dirtyLayout = true;
 576 }
 577
 578 void KStandardItemListWidget::selectedChanged(bool selected)
 579 {
 580     Q_UNUSED(selected);
 581     updateAdditionalInfoTextColor();
 582     m_dirtyContent = true;
 583 }
 584
 585 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
 586 {
 587     Q_UNUSED(current);
 588     Q_UNUSED(previous);
 589     m_dirtyLayout = true;
 590 }
 591
 592 int KStandardItemListWidget::selectionLength(const QString& text) const
 593 {
 594     return text.length();
 595 }
 596
 597 void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
 598 {
 599     Q_UNUSED(previous);
 600
 601    QGraphicsView* parent = scene()->views()[0];
 602    if (current.isEmpty() || !parent || current != "text") {
 603         if (m_roleEditor) {
 604             emit roleEditingCanceled(index(), current, data().value(current));
 605
 606             disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 607                        this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 608             disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 609                        this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 610             m_roleEditor->deleteLater();
 611             m_roleEditor = 0;
 612         }
 613         return;
 614     }
 615
 616     Q_ASSERT(!m_roleEditor);
 617
 618     const TextInfo* textInfo = m_textInfo.value("text");
 619
 620     m_roleEditor = new KItemListRoleEditor(parent);
 621     m_roleEditor->setIndex(index());
 622     m_roleEditor->setRole(current);
 623     m_roleEditor->setFont(styleOption().font);
 624
 625     const QString text = data().value(current).toString();
 626     m_roleEditor->setPlainText(text);
 627
 628     QTextOption textOption = textInfo->staticText.textOption();
 629     m_roleEditor->document()->setDefaultTextOption(textOption);
 630
 631     const int textSelectionLength = selectionLength(text);
 632
 633     if (textSelectionLength > 0) {
 634         QTextCursor cursor = m_roleEditor->textCursor();
 635         cursor.movePosition(QTextCursor::StartOfBlock);
 636         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength);
 637         m_roleEditor->setTextCursor(cursor);
 638     }
 639
 640     connect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 641             this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 642     connect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 643             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 644
 645     // Adjust the geometry of the editor
 646     QRectF rect = roleEditingRect(current);
 647     const int frameWidth = m_roleEditor->frameWidth();
 648     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 649     rect.translate(pos());
 650     if (rect.right() > parent->width()) {
 651         rect.setWidth(parent->width() - rect.left());
 652     }
 653     m_roleEditor->setGeometry(rect.toRect());
 654     m_roleEditor->show();
 655     m_roleEditor->setFocus();
 656 }
 657
 658 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 659 {
 660     if (m_roleEditor) {
 661         setEditedRole(QByteArray());
 662         Q_ASSERT(!m_roleEditor);
 663     }
 664
 665     KItemListWidget::resizeEvent(event);
 666
 667     m_dirtyLayout = true;
 668 }
 669
 670 void KStandardItemListWidget::showEvent(QShowEvent* event)
 671 {
 672     KItemListWidget::showEvent(event);
 673
 674     // Listen to changes of the clipboard to mark the item as cut/uncut
 675     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 676
 677     const KUrl itemUrl = data().value("url").value<KUrl>();
 678     m_isCut = clipboard->isCut(itemUrl);
 679
 680     connect(clipboard, SIGNAL(cutItemsChanged()),
 681             this, SLOT(slotCutItemsChanged()));
 682 }
 683
 684 void KStandardItemListWidget::hideEvent(QHideEvent* event)
 685 {
 686     disconnect(KFileItemClipboard::instance(), SIGNAL(cutItemsChanged()),
 687                this, SLOT(slotCutItemsChanged()));
 688
 689     KItemListWidget::hideEvent(event);
 690 }
 691
 692 void KStandardItemListWidget::slotCutItemsChanged()
 693 {
 694     const KUrl itemUrl = data().value("url").value<KUrl>();
 695     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 696     if (m_isCut != isCut) {
 697         m_isCut = isCut;
 698         m_pixmap = QPixmap();
 699         m_dirtyContent = true;
 700         update();
 701     }
 702 }
 703
 704 void KStandardItemListWidget::slotRoleEditingCanceled(int index,
 705                                                       const QByteArray& role,
 706                                                       const QVariant& value)
 707 {
 708     closeRoleEditor();
 709     emit roleEditingCanceled(index, role, value);
 710     setEditedRole(QByteArray());
 711 }
 712
 713 void KStandardItemListWidget::slotRoleEditingFinished(int index,
 714                                                       const QByteArray& role,
 715                                                       const QVariant& value)
 716 {
 717     closeRoleEditor();
 718     emit roleEditingFinished(index, role, value);
 719     setEditedRole(QByteArray());
 720 }
 721
 722 void KStandardItemListWidget::triggerCacheRefreshing()
 723 {
 724     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 725         return;
 726     }
 727
 728     refreshCache();
 729
 730     const QHash<QByteArray, QVariant> values = data();
 731     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
 732     m_isHidden = isHidden();
 733     m_customizedFont = customizedFont(styleOption().font);
 734     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
 735
 736     updateExpansionArea();
 737     updateTextsCache();
 738     updatePixmapCache();
 739
 740     m_dirtyLayout = false;
 741     m_dirtyContent = false;
 742     m_dirtyContentRoles.clear();
 743 }
 744
 745 void KStandardItemListWidget::updateExpansionArea()
 746 {
 747     if (m_supportsItemExpanding) {
 748         const QHash<QByteArray, QVariant> values = data();
 749         Q_ASSERT(values.contains("expandedParentsCount"));
 750         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 751         if (expandedParentsCount >= 0) {
 752             const qreal widgetHeight = size().height();
 753             const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2;
 754             const qreal x = expandedParentsCount * widgetHeight + inc;
 755             const qreal y = inc;
 756             m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall);
 757             return;
 758         }
 759     }
 760
 761     m_expansionArea = QRectF();
 762 }
 763
 764 void KStandardItemListWidget::updatePixmapCache()
 765 {
 766     // Precondition: Requires already updated m_textPos values to calculate
 767     // the remaining height when the alignment is vertical.
 768
 769     const QSizeF widgetSize = size();
 770     const bool iconOnTop = (m_layout == IconsLayout);
 771     const KItemListStyleOption& option = styleOption();
 772     const qreal padding = option.padding;
 773
 774     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize;
 775     const int maxIconHeight = option.iconSize;
 776
 777     const QHash<QByteArray, QVariant> values = data();
 778
 779     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
 780     if (!updatePixmap && m_dirtyContent) {
 781         updatePixmap = m_dirtyContentRoles.isEmpty()
 782                        || m_dirtyContentRoles.contains("iconPixmap")
 783                        || m_dirtyContentRoles.contains("iconName")
 784                        || m_dirtyContentRoles.contains("iconOverlays");
 785     }
 786
 787     if (updatePixmap) {
 788         m_pixmap = values["iconPixmap"].value<QPixmap>();
 789         if (m_pixmap.isNull()) {
 790             // Use the icon that fits to the MIME-type
 791             QString iconName = values["iconName"].toString();
 792             if (iconName.isEmpty()) {
 793                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
 794                 // use a generic icon as fallback
 795                 iconName = QLatin1String("unknown");
 796             }
 797             m_pixmap = pixmapForIcon(iconName, maxIconHeight);
 798         } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
 799             // A custom pixmap has been applied. Assure that the pixmap
 800             // is scaled to the maximum available size.
 801             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
 802         }
 803
 804         const QStringList overlays = values["iconOverlays"].toStringList();
 805
 806         // Strangely KFileItem::overlays() returns empty string-values, so
 807         // we need to check first whether an overlay must be drawn at all.
 808         // It is more efficient to do it here, as KIconLoader::drawOverlays()
 809         // assumes that an overlay will be drawn and has some additional
 810         // setup time.
 811         foreach (const QString& overlay, overlays) {
 812             if (!overlay.isEmpty()) {
 813                 // There is at least one overlay, draw all overlays above m_pixmap
 814                 // and cancel the check
 815                 KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop);
 816                 break;
 817             }
 818         }
 819
 820         if (m_isCut) {
 821             KIconEffect* effect = KIconLoader::global()->iconEffect();
 822             m_pixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 823         }
 824
 825         if (m_isHidden) {
 826             KIconEffect::semiTransparent(m_pixmap);
 827         }
 828
 829         if (isSelected()) {
 830             const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
 831             QImage image = m_pixmap.toImage();
 832             KIconEffect::colorize(image, color, 1.0f);
 833             m_pixmap = QPixmap::fromImage(image);
 834         }
 835     }
 836
 837     if (!m_overlay.isNull()) {
 838         QPainter painter(&m_pixmap);
 839         painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay);
 840     }
 841
 842     int scaledIconSize = 0;
 843     if (iconOnTop) {
 844         const TextInfo* textInfo = m_textInfo.value("text");
 845         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
 846     } else {
 847         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
 848         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
 849         scaledIconSize = (requiredTextHeight < maxIconHeight) ?
 850                            widgetSize.height() - 2 * padding : maxIconHeight;
 851     }
 852
 853     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
 854     const int maxScaledIconHeight = scaledIconSize;
 855
 856     m_scaledPixmapSize = m_pixmap.size();
 857     m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio);
 858
 859     if (iconOnTop) {
 860         // Center horizontally and align on bottom within the icon-area
 861         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2);
 862         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
 863     } else {
 864         // Center horizontally and vertically within the icon-area
 865         const TextInfo* textInfo = m_textInfo.value("text");
 866         m_pixmapPos.setX(textInfo->pos.x() - 2 * padding
 867                          - (scaledIconSize + m_scaledPixmapSize.width()) / 2);
 868         m_pixmapPos.setY(padding
 869                          + (scaledIconSize - m_scaledPixmapSize.height()) / 2);
 870     }
 871
 872     m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
 873
 874     // Prepare the pixmap that is used when the item gets hovered
 875     if (isHovered()) {
 876         m_hoverPixmap = m_pixmap;
 877         KIconEffect* effect = KIconLoader::global()->iconEffect();
 878         // In the KIconLoader terminology, active = hover.
 879         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
 880             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
 881         } else {
 882             m_hoverPixmap = m_pixmap;
 883         }
 884     } else if (hoverOpacity() <= 0.0) {
 885         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
 886         m_hoverPixmap = QPixmap();
 887     }
 888 }
 889
 890 void KStandardItemListWidget::updateTextsCache()
 891 {
 892     QTextOption textOption;
 893     switch (m_layout) {
 894     case IconsLayout:
 895         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 896         textOption.setAlignment(Qt::AlignHCenter);
 897         break;
 898     case CompactLayout:
 899     case DetailsLayout:
 900         textOption.setAlignment(Qt::AlignLeft);
 901         textOption.setWrapMode(QTextOption::NoWrap);
 902         break;
 903     default:
 904         Q_ASSERT(false);
 905         break;
 906     }
 907
 908     qDeleteAll(m_textInfo);
 909     m_textInfo.clear();
 910     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
 911         TextInfo* textInfo = new TextInfo();
 912         textInfo->staticText.setTextFormat(Qt::PlainText);
 913         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
 914         textInfo->staticText.setTextOption(textOption);
 915         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
 916     }
 917
 918     switch (m_layout) {
 919     case IconsLayout:   updateIconsLayoutTextCache(); break;
 920     case CompactLayout: updateCompactLayoutTextCache(); break;
 921     case DetailsLayout: updateDetailsLayoutTextCache(); break;
 922     default: Q_ASSERT(false); break;
 923     }
 924
 925     const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 926     if (ratingTextInfo) {
 927         // The text of the rating-role has been set to empty to get
 928         // replaced by a rating-image showing the rating as stars.
 929         const KItemListStyleOption& option = styleOption();
 930         QSizeF ratingSize = preferredRatingSize(option);
 931
 932         const qreal availableWidth = (m_layout == DetailsLayout)
 933                                      ? columnWidth("rating") - columnPadding(option)
 934                                      : size().width();
 935         if (ratingSize.width() > availableWidth) {
 936             ratingSize.rwidth() = availableWidth;
 937         }
 938         m_rating = QPixmap(ratingSize.toSize());
 939         m_rating.fill(Qt::transparent);
 940
 941         QPainter painter(&m_rating);
 942         const QRect rect(0, 0, m_rating.width(), m_rating.height());
 943         const int rating = data().value("rating").toInt();
 944         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
 945     } else if (!m_rating.isNull()) {
 946         m_rating = QPixmap();
 947     }
 948 }
 949
 950 void KStandardItemListWidget::updateIconsLayoutTextCache()
 951 {
 952     //      +------+
 953     //      | Icon |
 954     //      +------+
 955     //
 956     //    Name role that
 957     // might get wrapped above
 958     //    several lines.
 959     //  Additional role 1
 960     //  Additional role 2
 961
 962     const QHash<QByteArray, QVariant> values = data();
 963
 964     const KItemListStyleOption& option = styleOption();
 965     const qreal padding = option.padding;
 966     const qreal maxWidth = size().width() - 2 * padding;
 967     const qreal widgetHeight = size().height();
 968     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
 969
 970     // Initialize properties for the "text" role. It will be used as anchor
 971     // for initializing the position of the other roles.
 972     TextInfo* nameTextInfo = m_textInfo.value("text");
 973     const QString nameText = KStringHandler::preProcessWrap(values["text"].toString());
 974     nameTextInfo->staticText.setText(nameText);
 975
 976     // Calculate the number of lines required for the name and the required width
 977     qreal nameWidth = 0;
 978     qreal nameHeight = 0;
 979     QTextLine line;
 980
 981     int emptyRolesCount = 0;
 982     foreach (const QByteArray& role, visibleRoles()) {
 983         const QString text = roleText(role, values);
 984         if (role != "text" && role != "rating" && text.isEmpty()) {
 985             emptyRolesCount++;
 986         }
 987     }
 988
 989     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
 990     const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) -
 991                              (additionalRolesCount - emptyRolesCount);
 992
 993     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
 994     layout.setTextOption(nameTextInfo->staticText.textOption());
 995     layout.beginLayout();
 996     int nameLineIndex = 0;
 997     while ((line = layout.createLine()).isValid()) {
 998         line.setLineWidth(maxWidth);
 999         nameWidth = qMax(nameWidth, line.naturalTextWidth());
1000         nameHeight += line.height();
1001
1002         ++nameLineIndex;
1003         if (nameLineIndex == maxNameLines) {
1004             // The maximum number of textlines has been reached. If this is
1005             // the case provide an elided text if necessary.
1006             const int textLength = line.textStart() + line.textLength();
1007             if (textLength < nameText.length()) {
1008                 // Elide the last line of the text
1009                 QString lastTextLine = nameText.mid(line.textStart(), line.textLength());
1010                 lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine,
1011                                                                   Qt::ElideRight,
1012                                                                   line.naturalTextWidth() - 1);
1013                 const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
1014                 nameTextInfo->staticText.setText(elidedText);
1015             }
1016             break;
1017         }
1018     }
1019     layout.endLayout();
1020
1021     // Use one line for each additional information
1022     nameTextInfo->staticText.setTextWidth(maxWidth);
1023     nameTextInfo->pos = QPointF(padding, widgetHeight -
1024                                          nameHeight -
1025                                          (additionalRolesCount - emptyRolesCount)* lineSpacing -
1026                                          padding);
1027     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
1028                         nameTextInfo->pos.y(),
1029                         nameWidth,
1030                         nameHeight);
1031
1032     // Calculate the position for each additional information
1033     qreal y = nameTextInfo->pos.y() + nameHeight;
1034     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1035         if (role == "text") {
1036             continue;
1037         }
1038
1039         const QString text = roleText(role, values);
1040
1041         if (role != "text" && role != "rating" && text.isEmpty()) {
1042             continue;
1043         }
1044
1045         TextInfo* textInfo = m_textInfo.value(role);
1046         textInfo->staticText.setText(text);
1047
1048         qreal requiredWidth = 0;
1049
1050         QTextLayout layout(text, m_customizedFont);
1051         QTextOption textOption;
1052         textOption.setWrapMode(QTextOption::NoWrap);
1053         layout.setTextOption(textOption);
1054
1055         layout.beginLayout();
1056         QTextLine textLine = layout.createLine();
1057         if (textLine.isValid()) {
1058             textLine.setLineWidth(maxWidth);
1059             requiredWidth = textLine.naturalTextWidth();
1060             if (requiredWidth > maxWidth) {
1061                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1062                 textInfo->staticText.setText(elidedText);
1063                 requiredWidth = m_customizedFontMetrics.width(elidedText);
1064             } else if (role == "rating") {
1065                 // Use the width of the rating pixmap, because the rating text is empty.
1066                 requiredWidth = m_rating.width();
1067             }
1068         }
1069         layout.endLayout();
1070
1071         textInfo->pos = QPointF(padding, y);
1072         textInfo->staticText.setTextWidth(maxWidth);
1073
1074         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1075         m_textRect |= textRect;
1076
1077         y += lineSpacing;
1078     }
1079
1080     // Add a padding to the text rectangle
1081     m_textRect.adjust(-padding, -padding, padding, padding);
1082 }
1083
1084 void KStandardItemListWidget::updateCompactLayoutTextCache()
1085 {
1086     // +------+  Name role
1087     // | Icon |  Additional role 1
1088     // +------+  Additional role 2
1089
1090     const QHash<QByteArray, QVariant> values = data();
1091
1092     const KItemListStyleOption& option = styleOption();
1093     const qreal widgetHeight = size().height();
1094     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1095     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1096     const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize;
1097
1098     qreal maximumRequiredTextWidth = 0;
1099     const qreal x = option.padding * 3 + scaledIconSize;
1100     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1101     const qreal maxWidth = size().width() - x - option.padding;
1102     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1103         const QString text = roleText(role, values);
1104         TextInfo* textInfo = m_textInfo.value(role);
1105         textInfo->staticText.setText(text);
1106
1107         qreal requiredWidth = m_customizedFontMetrics.width(text);
1108         if (requiredWidth > maxWidth) {
1109             requiredWidth = maxWidth;
1110             const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1111             textInfo->staticText.setText(elidedText);
1112         }
1113
1114         textInfo->pos = QPointF(x, y);
1115         textInfo->staticText.setTextWidth(maxWidth);
1116
1117         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1118
1119         y += lineSpacing;
1120     }
1121
1122     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1123 }
1124
1125 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1126 {
1127     // Precondition: Requires already updated m_expansionArea
1128     // to determine the left position.
1129
1130     // +------+
1131     // | Icon |  Name role   Additional role 1   Additional role 2
1132     // +------+
1133     m_textRect = QRectF();
1134
1135     const KItemListStyleOption& option = styleOption();
1136     const QHash<QByteArray, QVariant> values = data();
1137
1138     const qreal widgetHeight = size().height();
1139     const int scaledIconSize = widgetHeight - 2 * option.padding;
1140     const int fontHeight = m_customizedFontMetrics.height();
1141
1142     const qreal columnWidthInc = columnPadding(option);
1143     qreal firstColumnInc = scaledIconSize;
1144     if (m_supportsItemExpanding) {
1145         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
1146     } else {
1147         firstColumnInc += option.padding;
1148     }
1149
1150     qreal x = firstColumnInc;
1151     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1152
1153     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1154         QString text = roleText(role, values);
1155
1156         // Elide the text in case it does not fit into the available column-width
1157         qreal requiredWidth = m_customizedFontMetrics.width(text);
1158         const qreal roleWidth = columnWidth(role);
1159         qreal availableTextWidth = roleWidth - columnWidthInc;
1160
1161         const bool isTextRole = (role == "text");
1162         if (isTextRole) {
1163             availableTextWidth -= firstColumnInc;
1164         }
1165
1166         if (requiredWidth > availableTextWidth) {
1167             text = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1168             requiredWidth = m_customizedFontMetrics.width(text);
1169         }
1170
1171         TextInfo* textInfo = m_textInfo.value(role);
1172         textInfo->staticText.setText(text);
1173         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
1174         x += roleWidth;
1175
1176         if (isTextRole) {
1177             const qreal textWidth = option.extendedSelectionRegion
1178                                     ? size().width() - textInfo->pos.x()
1179                                     : requiredWidth + 2 * option.padding;
1180             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0,
1181                                 textWidth, size().height());
1182
1183             // The column after the name should always be aligned on the same x-position independent
1184             // from the expansion-level shown in the name column
1185             x -= firstColumnInc;
1186         } else if (isRoleRightAligned(role)) {
1187             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1188         }
1189     }
1190 }
1191
1192 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1193 {
1194     QColor c1;
1195     if (m_customTextColor.isValid()) {
1196         c1 = m_customTextColor;
1197     } else if (isSelected() && m_layout != DetailsLayout) {
1198         c1 = styleOption().palette.highlightedText().color();
1199     } else {
1200         c1 = styleOption().palette.text().color();
1201     }
1202
1203     // For the color of the additional info the inactive text color
1204     // is not used as this might lead to unreadable text for some color schemes. Instead
1205     // the text color c1 is slightly mixed with the background color.
1206     const QColor c2 = styleOption().palette.base().color();
1207     const int p1 = 70;
1208     const int p2 = 100 - p1;
1209     m_additionalInfoTextColor = QColor((c1.red()   * p1 + c2.red()   * p2) / 100,
1210                                        (c1.green() * p1 + c2.green() * p2) / 100,
1211                                        (c1.blue()  * p1 + c2.blue()  * p2) / 100);
1212 }
1213
1214 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
1215 {
1216     if (m_scaledPixmapSize != pixmap.size()) {
1217         QPixmap scaledPixmap = pixmap;
1218         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
1219         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1220
1221 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1222         painter->setPen(Qt::blue);
1223         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1224 #endif
1225     } else {
1226         painter->drawPixmap(m_pixmapPos, pixmap);
1227     }
1228 }
1229
1230 void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
1231 {
1232     const int siblingSize = size().height();
1233     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1234     QRect siblingRect(x, 0, siblingSize, siblingSize);
1235
1236     QStyleOption option;
1237     bool isItemSibling = true;
1238
1239     const QBitArray siblings = siblingsInformation();
1240     for (int i = siblings.count() - 1; i >= 0; --i) {
1241         option.rect = siblingRect;
1242         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1243
1244         if (isItemSibling) {
1245             option.state |= QStyle::State_Item;
1246             if (m_isExpandable) {
1247                 option.state |= QStyle::State_Children;
1248             }
1249             if (data()["isExpanded"].toBool()) {
1250                 option.state |= QStyle::State_Open;
1251             }
1252             isItemSibling = false;
1253         }
1254
1255         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1256
1257         siblingRect.translate(-siblingRect.width(), 0);
1258     }
1259 }
1260
1261 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
1262 {
1263     const TextInfo* textInfo = m_textInfo.value(role);
1264     if (!textInfo) {
1265         return QRectF();
1266     }
1267
1268     QRectF rect(textInfo->pos, textInfo->staticText.size());
1269     if (m_layout == DetailsLayout) {
1270         rect.setWidth(columnWidth(role) - rect.x());
1271     }
1272
1273     return rect;
1274 }
1275
1276 void KStandardItemListWidget::closeRoleEditor()
1277 {
1278     if (m_roleEditor->hasFocus()) {
1279         // If the editing was not ended by a FocusOut event, we have
1280         // to transfer the keyboard focus back to the KItemListContainer.
1281         scene()->views()[0]->parentWidget()->setFocus();
1282     }
1283
1284     disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
1285                this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
1286     disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
1287                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
1288     m_roleEditor->deleteLater();
1289     m_roleEditor = 0;
1290 }
1291
1292 QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, int size)
1293 {
1294     const KIcon icon(name);
1295
1296     int requestedSize;
1297     if (size <= KIconLoader::SizeSmall) {
1298         requestedSize = KIconLoader::SizeSmall;
1299     } else if (size <= KIconLoader::SizeSmallMedium) {
1300         requestedSize = KIconLoader::SizeSmallMedium;
1301     } else if (size <= KIconLoader::SizeMedium) {
1302         requestedSize = KIconLoader::SizeMedium;
1303     } else if (size <= KIconLoader::SizeLarge) {
1304         requestedSize = KIconLoader::SizeLarge;
1305     } else if (size <= KIconLoader::SizeHuge) {
1306         requestedSize = KIconLoader::SizeHuge;
1307     } else if (size <= KIconLoader::SizeEnormous) {
1308         requestedSize = KIconLoader::SizeEnormous;
1309     } else if (size <= KIconLoader::SizeEnormous * 2) {
1310         requestedSize = KIconLoader::SizeEnormous * 2;
1311     } else {
1312         requestedSize = size;
1313     }
1314
1315     QPixmap pixmap = icon.pixmap(requestedSize, requestedSize);
1316     if (requestedSize != size) {
1317         KPixmapModifier::scale(pixmap, QSize(size, size));
1318     }
1319
1320     return pixmap;
1321 }
1322
1323 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption& option)
1324 {
1325     const qreal height = option.fontMetrics.ascent();
1326     return QSizeF(height * 5, height);
1327 }
1328
1329 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption& option)
1330 {
1331     return option.padding * 6;
1332 }
1333
1334 #include "kstandarditemlistwidget.moc"