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;
 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 void KStandardItemListWidget::setTextColor(const QColor& color)
 468 {
 469     if (color != m_customTextColor) {
 470         m_customTextColor = color;
 471         updateAdditionalInfoTextColor();
 472         update();
 473     }
 474 }
 475
 476 QColor KStandardItemListWidget::textColor() const
 477 {
 478     if (m_customTextColor.isValid() && !isSelected()) {
 479         return m_customTextColor;
 480     }
 481
 482     const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
 483     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : QPalette::Text;
 484     return styleOption().palette.brush(group, role).color();
 485 }
 486
 487 void KStandardItemListWidget::setOverlay(const QPixmap& overlay)
 488 {
 489     m_overlay = overlay;
 490     m_dirtyContent = true;
 491     update();
 492 }
 493
 494 QPixmap KStandardItemListWidget::overlay() const
 495 {
 496     return m_overlay;
 497 }
 498
 499
 500 QString KStandardItemListWidget::roleText(const QByteArray& role,
 501                                           const QHash<QByteArray, QVariant>& values) const
 502 {
 503     return static_cast<const KStandardItemListWidgetInformant*>(informant())->roleText(role, values);
 504 }
 505
 506 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
 507                                           const QSet<QByteArray>& roles)
 508 {
 509     Q_UNUSED(current);
 510
 511     m_dirtyContent = true;
 512
 513     QSet<QByteArray> dirtyRoles;
 514     if (roles.isEmpty()) {
 515         dirtyRoles = visibleRoles().toSet();
 516     } else {
 517         dirtyRoles = roles;
 518     }
 519
 520     // The icon-state might depend from other roles and hence is
 521     // marked as dirty whenever a role has been changed
 522     dirtyRoles.insert("iconPixmap");
 523     dirtyRoles.insert("iconName");
 524
 525     QSetIterator<QByteArray> it(dirtyRoles);
 526     while (it.hasNext()) {
 527         const QByteArray& role = it.next();
 528         m_dirtyContentRoles.insert(role);
 529     }
 530 }
 531
 532 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
 533                                               const QList<QByteArray>& previous)
 534 {
 535     Q_UNUSED(previous);
 536     m_sortedVisibleRoles = current;
 537     m_dirtyLayout = true;
 538 }
 539
 540 void KStandardItemListWidget::columnWidthChanged(const QByteArray& role,
 541                                              qreal current,
 542                                              qreal previous)
 543 {
 544     Q_UNUSED(role);
 545     Q_UNUSED(current);
 546     Q_UNUSED(previous);
 547     m_dirtyLayout = true;
 548 }
 549
 550 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
 551                                              const KItemListStyleOption& previous)
 552 {
 553     Q_UNUSED(current);
 554     Q_UNUSED(previous);
 555     updateAdditionalInfoTextColor();
 556     m_dirtyLayout = true;
 557 }
 558
 559 void KStandardItemListWidget::hoveredChanged(bool hovered)
 560 {
 561     Q_UNUSED(hovered);
 562     m_dirtyLayout = true;
 563 }
 564
 565 void KStandardItemListWidget::selectedChanged(bool selected)
 566 {
 567     Q_UNUSED(selected);
 568     updateAdditionalInfoTextColor();
 569     m_dirtyContent = true;
 570 }
 571
 572 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
 573 {
 574     Q_UNUSED(current);
 575     Q_UNUSED(previous);
 576     m_dirtyLayout = true;
 577 }
 578
 579 void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
 580 {
 581     Q_UNUSED(previous);
 582
 583    QGraphicsView* parent = scene()->views()[0];
 584    if (current.isEmpty() || !parent || current != "text") {
 585         if (m_roleEditor) {
 586             emit roleEditingCanceled(index(), current, data().value(current));
 587             m_roleEditor->deleteLater();
 588             m_roleEditor = 0;
 589         }
 590         return;
 591     }
 592
 593     Q_ASSERT(!m_roleEditor);
 594
 595     const TextInfo* textInfo = m_textInfo.value("text");
 596
 597     m_roleEditor = new KItemListRoleEditor(parent);
 598     m_roleEditor->setIndex(index());
 599     m_roleEditor->setRole(current);
 600     m_roleEditor->setFont(styleOption().font);
 601
 602     const QString text = data().value(current).toString();
 603     m_roleEditor->setPlainText(text);
 604
 605     QTextOption textOption = textInfo->staticText.textOption();
 606     m_roleEditor->document()->setDefaultTextOption(textOption);
 607
 608     // Select the text without MIME-type extension
 609     int selectionLength = text.length();
 610
 611     const QString extension = KMimeType::extractKnownExtension(text);
 612     if (!extension.isEmpty()) {
 613         selectionLength -= extension.length() + 1;
 614     }
 615
 616     if (selectionLength > 0) {
 617         QTextCursor cursor = m_roleEditor->textCursor();
 618         cursor.movePosition(QTextCursor::StartOfBlock);
 619         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, selectionLength);
 620         m_roleEditor->setTextCursor(cursor);
 621     }
 622
 623     connect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 624             this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 625     connect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 626             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 627
 628     // Adjust the geometry of the editor
 629     QRectF rect = roleEditingRect(current);
 630     const int frameWidth = m_roleEditor->frameWidth();
 631     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 632     rect.translate(pos());
 633     if (rect.right() > parent->width()) {
 634         rect.setWidth(parent->width() - rect.left());
 635     }
 636     m_roleEditor->setGeometry(rect.toRect());
 637     m_roleEditor->show();
 638     m_roleEditor->setFocus();
 639 }
 640
 641 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 642 {
 643     if (m_roleEditor) {
 644         setEditedRole(QByteArray());
 645         Q_ASSERT(!m_roleEditor);
 646     }
 647
 648     KItemListWidget::resizeEvent(event);
 649
 650     m_dirtyLayout = true;
 651 }
 652
 653 void KStandardItemListWidget::showEvent(QShowEvent* event)
 654 {
 655     KItemListWidget::showEvent(event);
 656
 657     // Listen to changes of the clipboard to mark the item as cut/uncut
 658     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 659
 660     const KUrl itemUrl = data().value("url").value<KUrl>();
 661     m_isCut = clipboard->isCut(itemUrl);
 662
 663     connect(clipboard, SIGNAL(cutItemsChanged()),
 664             this, SLOT(slotCutItemsChanged()));
 665 }
 666
 667 void KStandardItemListWidget::hideEvent(QHideEvent* event)
 668 {
 669     disconnect(KFileItemClipboard::instance(), SIGNAL(cutItemsChanged()),
 670                this, SLOT(slotCutItemsChanged()));
 671
 672     KItemListWidget::hideEvent(event);
 673 }
 674
 675 void KStandardItemListWidget::slotCutItemsChanged()
 676 {
 677     const KUrl itemUrl = data().value("url").value<KUrl>();
 678     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 679     if (m_isCut != isCut) {
 680         m_isCut = isCut;
 681         m_pixmap = QPixmap();
 682         m_dirtyContent = true;
 683         update();
 684     }
 685 }
 686
 687 void KStandardItemListWidget::slotRoleEditingCanceled(int index,
 688                                                       const QByteArray& role,
 689                                                       const QVariant& value)
 690 {
 691     closeRoleEditor();
 692     emit roleEditingCanceled(index, role, value);
 693     setEditedRole(QByteArray());
 694 }
 695
 696 void KStandardItemListWidget::slotRoleEditingFinished(int index,
 697                                                       const QByteArray& role,
 698                                                       const QVariant& value)
 699 {
 700     closeRoleEditor();
 701     emit roleEditingFinished(index, role, value);
 702     setEditedRole(QByteArray());
 703 }
 704
 705 void KStandardItemListWidget::triggerCacheRefreshing()
 706 {
 707     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 708         return;
 709     }
 710
 711     refreshCache();
 712
 713     const QHash<QByteArray, QVariant> values = data();
 714     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
 715     m_isHidden = isHidden();
 716     m_customizedFont = customizedFont(styleOption().font);
 717     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
 718
 719     updateExpansionArea();
 720     updateTextsCache();
 721     updatePixmapCache();
 722
 723     m_dirtyLayout = false;
 724     m_dirtyContent = false;
 725     m_dirtyContentRoles.clear();
 726 }
 727
 728 void KStandardItemListWidget::updateExpansionArea()
 729 {
 730     if (m_supportsItemExpanding) {
 731         const QHash<QByteArray, QVariant> values = data();
 732         Q_ASSERT(values.contains("expandedParentsCount"));
 733         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 734         if (expandedParentsCount >= 0) {
 735             const qreal widgetHeight = size().height();
 736             const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2;
 737             const qreal x = expandedParentsCount * widgetHeight + inc;
 738             const qreal y = inc;
 739             m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall);
 740             return;
 741         }
 742     }
 743
 744     m_expansionArea = QRectF();
 745 }
 746
 747 void KStandardItemListWidget::updatePixmapCache()
 748 {
 749     // Precondition: Requires already updated m_textPos values to calculate
 750     // the remaining height when the alignment is vertical.
 751
 752     const QSizeF widgetSize = size();
 753     const bool iconOnTop = (m_layout == IconsLayout);
 754     const KItemListStyleOption& option = styleOption();
 755     const qreal padding = option.padding;
 756
 757     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize;
 758     const int maxIconHeight = option.iconSize;
 759
 760     const QHash<QByteArray, QVariant> values = data();
 761
 762     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
 763     if (!updatePixmap && m_dirtyContent) {
 764         updatePixmap = m_dirtyContentRoles.isEmpty()
 765                        || m_dirtyContentRoles.contains("iconPixmap")
 766                        || m_dirtyContentRoles.contains("iconName")
 767                        || m_dirtyContentRoles.contains("iconOverlays");
 768     }
 769
 770     if (updatePixmap) {
 771         m_pixmap = values["iconPixmap"].value<QPixmap>();
 772         if (m_pixmap.isNull()) {
 773             // Use the icon that fits to the MIME-type
 774             QString iconName = values["iconName"].toString();
 775             if (iconName.isEmpty()) {
 776                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
 777                 // use a generic icon as fallback
 778                 iconName = QLatin1String("unknown");
 779             }
 780             m_pixmap = pixmapForIcon(iconName, maxIconHeight);
 781         } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
 782             // A custom pixmap has been applied. Assure that the pixmap
 783             // is scaled to the maximum available size.
 784             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
 785         }
 786
 787         const QStringList overlays = values["iconOverlays"].toStringList();
 788
 789         // Strangely KFileItem::overlays() returns empty string-values, so
 790         // we need to check first whether an overlay must be drawn at all.
 791         // It is more efficient to do it here, as KIconLoader::drawOverlays()
 792         // assumes that an overlay will be drawn and has some additional
 793         // setup time.
 794         foreach (const QString& overlay, overlays) {
 795             if (!overlay.isEmpty()) {
 796                 // There is at least one overlay, draw all overlays above m_pixmap
 797                 // and cancel the check
 798                 KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop);
 799                 break;
 800             }
 801         }
 802
 803         if (m_isCut) {
 804             KIconEffect* effect = KIconLoader::global()->iconEffect();
 805             m_pixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 806         }
 807
 808         if (m_isHidden) {
 809             KIconEffect::semiTransparent(m_pixmap);
 810         }
 811
 812         if (isSelected()) {
 813             const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
 814             QImage image = m_pixmap.toImage();
 815             KIconEffect::colorize(image, color, 1.0f);
 816             m_pixmap = QPixmap::fromImage(image);
 817         }
 818     }
 819
 820     if (!m_overlay.isNull()) {
 821         QPainter painter(&m_pixmap);
 822         painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay);
 823     }
 824
 825     int scaledIconSize = 0;
 826     if (iconOnTop) {
 827         const TextInfo* textInfo = m_textInfo.value("text");
 828         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
 829     } else {
 830         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
 831         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
 832         scaledIconSize = (requiredTextHeight < maxIconHeight) ?
 833                            widgetSize.height() - 2 * padding : maxIconHeight;
 834     }
 835
 836     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
 837     const int maxScaledIconHeight = scaledIconSize;
 838
 839     m_scaledPixmapSize = m_pixmap.size();
 840     m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio);
 841
 842     if (iconOnTop) {
 843         // Center horizontally and align on bottom within the icon-area
 844         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2);
 845         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
 846     } else {
 847         // Center horizontally and vertically within the icon-area
 848         const TextInfo* textInfo = m_textInfo.value("text");
 849         m_pixmapPos.setX(textInfo->pos.x() - 2 * padding
 850                          - (scaledIconSize + m_scaledPixmapSize.width()) / 2);
 851         m_pixmapPos.setY(padding
 852                          + (scaledIconSize - m_scaledPixmapSize.height()) / 2);
 853     }
 854
 855     m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
 856
 857     // Prepare the pixmap that is used when the item gets hovered
 858     if (isHovered()) {
 859         m_hoverPixmap = m_pixmap;
 860         KIconEffect* effect = KIconLoader::global()->iconEffect();
 861         // In the KIconLoader terminology, active = hover.
 862         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
 863             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
 864         } else {
 865             m_hoverPixmap = m_pixmap;
 866         }
 867     } else if (hoverOpacity() <= 0.0) {
 868         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
 869         m_hoverPixmap = QPixmap();
 870     }
 871 }
 872
 873 void KStandardItemListWidget::updateTextsCache()
 874 {
 875     QTextOption textOption;
 876     switch (m_layout) {
 877     case IconsLayout:
 878         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 879         textOption.setAlignment(Qt::AlignHCenter);
 880         break;
 881     case CompactLayout:
 882     case DetailsLayout:
 883         textOption.setAlignment(Qt::AlignLeft);
 884         textOption.setWrapMode(QTextOption::NoWrap);
 885         break;
 886     default:
 887         Q_ASSERT(false);
 888         break;
 889     }
 890
 891     qDeleteAll(m_textInfo);
 892     m_textInfo.clear();
 893     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
 894         TextInfo* textInfo = new TextInfo();
 895         textInfo->staticText.setTextFormat(Qt::PlainText);
 896         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
 897         textInfo->staticText.setTextOption(textOption);
 898         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
 899     }
 900
 901     switch (m_layout) {
 902     case IconsLayout:   updateIconsLayoutTextCache(); break;
 903     case CompactLayout: updateCompactLayoutTextCache(); break;
 904     case DetailsLayout: updateDetailsLayoutTextCache(); break;
 905     default: Q_ASSERT(false); break;
 906     }
 907
 908     const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 909     if (ratingTextInfo) {
 910         // The text of the rating-role has been set to empty to get
 911         // replaced by a rating-image showing the rating as stars.
 912         const KItemListStyleOption& option = styleOption();
 913         QSizeF ratingSize = preferredRatingSize(option);
 914
 915         const qreal availableWidth = (m_layout == DetailsLayout)
 916                                      ? columnWidth("rating") - columnPadding(option)
 917                                      : m_textRect.width();
 918         if (ratingSize.width() > availableWidth) {
 919             ratingSize.rwidth() = availableWidth;
 920         }
 921         m_rating = QPixmap(ratingSize.toSize());
 922         m_rating.fill(Qt::transparent);
 923
 924         QPainter painter(&m_rating);
 925         const QRect rect(0, 0, m_rating.width(), m_rating.height());
 926         const int rating = data().value("rating").toInt();
 927         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
 928     } else if (!m_rating.isNull()) {
 929         m_rating = QPixmap();
 930     }
 931 }
 932
 933 void KStandardItemListWidget::updateIconsLayoutTextCache()
 934 {
 935     //      +------+
 936     //      | Icon |
 937     //      +------+
 938     //
 939     //    Name role that
 940     // might get wrapped above
 941     //    several lines.
 942     //  Additional role 1
 943     //  Additional role 2
 944
 945     const QHash<QByteArray, QVariant> values = data();
 946
 947     const KItemListStyleOption& option = styleOption();
 948     const qreal padding = option.padding;
 949     const qreal maxWidth = size().width() - 2 * padding;
 950     const qreal widgetHeight = size().height();
 951     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
 952
 953     // Initialize properties for the "text" role. It will be used as anchor
 954     // for initializing the position of the other roles.
 955     TextInfo* nameTextInfo = m_textInfo.value("text");
 956     const QString nameText = KStringHandler::preProcessWrap(values["text"].toString());
 957     nameTextInfo->staticText.setText(nameText);
 958
 959     // Calculate the number of lines required for the name and the required width
 960     qreal nameWidth = 0;
 961     qreal nameHeight = 0;
 962     QTextLine line;
 963
 964     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
 965     const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount;
 966
 967     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
 968     layout.setTextOption(nameTextInfo->staticText.textOption());
 969     layout.beginLayout();
 970     int nameLineIndex = 0;
 971     while ((line = layout.createLine()).isValid()) {
 972         line.setLineWidth(maxWidth);
 973         nameWidth = qMax(nameWidth, line.naturalTextWidth());
 974         nameHeight += line.height();
 975
 976         ++nameLineIndex;
 977         if (nameLineIndex == maxNameLines) {
 978             // The maximum number of textlines has been reached. If this is
 979             // the case provide an elided text if necessary.
 980             const int textLength = line.textStart() + line.textLength();
 981             if (textLength < nameText.length()) {
 982                 // Elide the last line of the text
 983                 QString lastTextLine = nameText.mid(line.textStart(), line.textLength());
 984                 lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine,
 985                                                                   Qt::ElideRight,
 986                                                                   line.naturalTextWidth() - 1);
 987                 const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
 988                 nameTextInfo->staticText.setText(elidedText);
 989             }
 990             break;
 991         }
 992     }
 993     layout.endLayout();
 994
 995     // Use one line for each additional information
 996     nameTextInfo->staticText.setTextWidth(maxWidth);
 997     nameTextInfo->pos = QPointF(padding, widgetHeight -
 998                                          nameHeight -
 999                                          additionalRolesCount * lineSpacing -
1000                                          padding);
1001     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
1002                         nameTextInfo->pos.y(),
1003                         nameWidth,
1004                         nameHeight);
1005
1006     // Calculate the position for each additional information
1007     qreal y = nameTextInfo->pos.y() + nameHeight;
1008     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1009         if (role == "text") {
1010             continue;
1011         }
1012
1013         const QString text = roleText(role, values);
1014         TextInfo* textInfo = m_textInfo.value(role);
1015         textInfo->staticText.setText(text);
1016
1017         qreal requiredWidth = 0;
1018
1019         QTextLayout layout(text, m_customizedFont);
1020         QTextOption textOption;
1021         textOption.setWrapMode(QTextOption::NoWrap);
1022         layout.setTextOption(textOption);
1023
1024         layout.beginLayout();
1025         QTextLine textLine = layout.createLine();
1026         if (textLine.isValid()) {
1027             textLine.setLineWidth(maxWidth);
1028             requiredWidth = textLine.naturalTextWidth();
1029             if (requiredWidth > maxWidth) {
1030                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1031                 textInfo->staticText.setText(elidedText);
1032                 requiredWidth = m_customizedFontMetrics.width(elidedText);
1033             }
1034         }
1035         layout.endLayout();
1036
1037         textInfo->pos = QPointF(padding, y);
1038         textInfo->staticText.setTextWidth(maxWidth);
1039
1040         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1041         m_textRect |= textRect;
1042
1043         y += lineSpacing;
1044     }
1045
1046     // Add a padding to the text rectangle
1047     m_textRect.adjust(-padding, -padding, padding, padding);
1048 }
1049
1050 void KStandardItemListWidget::updateCompactLayoutTextCache()
1051 {
1052     // +------+  Name role
1053     // | Icon |  Additional role 1
1054     // +------+  Additional role 2
1055
1056     const QHash<QByteArray, QVariant> values = data();
1057
1058     const KItemListStyleOption& option = styleOption();
1059     const qreal widgetHeight = size().height();
1060     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1061     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1062     const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize;
1063
1064     qreal maximumRequiredTextWidth = 0;
1065     const qreal x = option.padding * 3 + scaledIconSize;
1066     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1067     const qreal maxWidth = size().width() - x - option.padding;
1068     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1069         const QString text = roleText(role, values);
1070         TextInfo* textInfo = m_textInfo.value(role);
1071         textInfo->staticText.setText(text);
1072
1073         qreal requiredWidth = m_customizedFontMetrics.width(text);
1074         if (requiredWidth > maxWidth) {
1075             requiredWidth = maxWidth;
1076             const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1077             textInfo->staticText.setText(elidedText);
1078         }
1079
1080         textInfo->pos = QPointF(x, y);
1081         textInfo->staticText.setTextWidth(maxWidth);
1082
1083         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1084
1085         y += lineSpacing;
1086     }
1087
1088     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1089 }
1090
1091 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1092 {
1093     // Precondition: Requires already updated m_expansionArea
1094     // to determine the left position.
1095
1096     // +------+
1097     // | Icon |  Name role   Additional role 1   Additional role 2
1098     // +------+
1099     m_textRect = QRectF();
1100
1101     const KItemListStyleOption& option = styleOption();
1102     const QHash<QByteArray, QVariant> values = data();
1103
1104     const qreal widgetHeight = size().height();
1105     const int scaledIconSize = widgetHeight - 2 * option.padding;
1106     const int fontHeight = m_customizedFontMetrics.height();
1107
1108     const qreal columnWidthInc = columnPadding(option);
1109     qreal firstColumnInc = scaledIconSize;
1110     if (m_supportsItemExpanding) {
1111         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
1112     } else {
1113         firstColumnInc += option.padding;
1114     }
1115
1116     qreal x = firstColumnInc;
1117     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1118
1119     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1120         QString text = roleText(role, values);
1121
1122         // Elide the text in case it does not fit into the available column-width
1123         qreal requiredWidth = m_customizedFontMetrics.width(text);
1124         const qreal roleWidth = columnWidth(role);
1125         qreal availableTextWidth = roleWidth - columnWidthInc;
1126
1127         const bool isTextRole = (role == "text");
1128         if (isTextRole) {
1129             availableTextWidth -= firstColumnInc;
1130         }
1131
1132         if (requiredWidth > availableTextWidth) {
1133             text = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1134             requiredWidth = m_customizedFontMetrics.width(text);
1135         }
1136
1137         TextInfo* textInfo = m_textInfo.value(role);
1138         textInfo->staticText.setText(text);
1139         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
1140         x += roleWidth;
1141
1142         if (isTextRole) {
1143             const qreal textWidth = option.extendedSelectionRegion
1144                                     ? size().width() - textInfo->pos.x()
1145                                     : requiredWidth + 2 * option.padding;
1146             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0,
1147                                 textWidth, size().height());
1148
1149             // The column after the name should always be aligned on the same x-position independent
1150             // from the expansion-level shown in the name column
1151             x -= firstColumnInc;
1152         } else if (isRoleRightAligned(role)) {
1153             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1154         }
1155     }
1156 }
1157
1158 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1159 {
1160     QColor c1;
1161     if (m_customTextColor.isValid()) {
1162         c1 = m_customTextColor;
1163     } else if (isSelected() && m_layout != DetailsLayout) {
1164         c1 = styleOption().palette.highlightedText().color();
1165     } else {
1166         c1 = styleOption().palette.text().color();
1167     }
1168
1169     // For the color of the additional info the inactive text color
1170     // is not used as this might lead to unreadable text for some color schemes. Instead
1171     // the text color c1 is slightly mixed with the background color.
1172     const QColor c2 = styleOption().palette.base().color();
1173     const int p1 = 70;
1174     const int p2 = 100 - p1;
1175     m_additionalInfoTextColor = QColor((c1.red()   * p1 + c2.red()   * p2) / 100,
1176                                        (c1.green() * p1 + c2.green() * p2) / 100,
1177                                        (c1.blue()  * p1 + c2.blue()  * p2) / 100);
1178 }
1179
1180 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
1181 {
1182     if (m_scaledPixmapSize != pixmap.size()) {
1183         QPixmap scaledPixmap = pixmap;
1184         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
1185         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1186
1187 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1188         painter->setPen(Qt::blue);
1189         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1190 #endif
1191     } else {
1192         painter->drawPixmap(m_pixmapPos, pixmap);
1193     }
1194 }
1195
1196 void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
1197 {
1198     const int siblingSize = size().height();
1199     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1200     QRect siblingRect(x, 0, siblingSize, siblingSize);
1201
1202     QStyleOption option;
1203     bool isItemSibling = true;
1204
1205     const QBitArray siblings = siblingsInformation();
1206     for (int i = siblings.count() - 1; i >= 0; --i) {
1207         option.rect = siblingRect;
1208         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1209
1210         if (isItemSibling) {
1211             option.state |= QStyle::State_Item;
1212             if (m_isExpandable) {
1213                 option.state |= QStyle::State_Children;
1214             }
1215             if (data()["isExpanded"].toBool()) {
1216                 option.state |= QStyle::State_Open;
1217             }
1218             isItemSibling = false;
1219         }
1220
1221         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1222
1223         siblingRect.translate(-siblingRect.width(), 0);
1224     }
1225 }
1226
1227 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
1228 {
1229     const TextInfo* textInfo = m_textInfo.value(role);
1230     if (!textInfo) {
1231         return QRectF();
1232     }
1233
1234     QRectF rect(textInfo->pos, textInfo->staticText.size());
1235     if (m_layout == DetailsLayout) {
1236         rect.setWidth(columnWidth(role) - rect.x());
1237     }
1238
1239     return rect;
1240 }
1241
1242 void KStandardItemListWidget::closeRoleEditor()
1243 {
1244     if (m_roleEditor->hasFocus()) {
1245         // If the editing was not ended by a FocusOut event, we have
1246         // to transfer the keyboard focus back to the KItemListContainer.
1247         scene()->views()[0]->parentWidget()->setFocus();
1248     }
1249     m_roleEditor->deleteLater();
1250     m_roleEditor = 0;
1251 }
1252
1253 QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, int size)
1254 {
1255     const KIcon icon(name);
1256
1257     int requestedSize;
1258     if (size <= KIconLoader::SizeSmall) {
1259         requestedSize = KIconLoader::SizeSmall;
1260     } else if (size <= KIconLoader::SizeSmallMedium) {
1261         requestedSize = KIconLoader::SizeSmallMedium;
1262     } else if (size <= KIconLoader::SizeMedium) {
1263         requestedSize = KIconLoader::SizeMedium;
1264     } else if (size <= KIconLoader::SizeLarge) {
1265         requestedSize = KIconLoader::SizeLarge;
1266     } else if (size <= KIconLoader::SizeHuge) {
1267         requestedSize = KIconLoader::SizeHuge;
1268     } else if (size <= KIconLoader::SizeEnormous) {
1269         requestedSize = KIconLoader::SizeEnormous;
1270     } else if (size <= KIconLoader::SizeEnormous * 2) {
1271         requestedSize = KIconLoader::SizeEnormous * 2;
1272     } else {
1273         requestedSize = size;
1274     }
1275
1276     QPixmap pixmap = icon.pixmap(requestedSize, requestedSize);
1277     if (requestedSize != size) {
1278         KPixmapModifier::scale(pixmap, QSize(size, size));
1279     }
1280
1281     return pixmap;
1282 }
1283
1284 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption& option)
1285 {
1286     const qreal height = option.fontMetrics.ascent();
1287     return QSizeF(height * 5, height);
1288 }
1289
1290 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption& option)
1291 {
1292     return option.padding * 6;
1293 }
1294
1295 #include "kstandarditemlistwidget.moc"