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