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