src/kitemviews/kstandarditemlistwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2012 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "kstandarditemlistwidget.h"
  21
  22 #include "kfileitemlistview.h"
  23 #include "kfileitemmodel.h"
  24
  25 #include <KIcon>
  26 #include <KIconEffect>
  27 #include <KIconLoader>
  28 #include <KLocale>
  29 #include <kratingpainter.h>
  30 #include <KStringHandler>
  31 #include <KDebug>
  32
  33 #include "private/kfileitemclipboard.h"
  34 #include "private/kitemlistroleeditor.h"
  35 #include "private/kpixmapmodifier.h"
  36
  37 #include <QFontMetricsF>
  38 #include <QGraphicsScene>
  39 #include <QGraphicsSceneResizeEvent>
  40 #include <QGraphicsView>
  41 #include <QPainter>
  42 #include <QStyleOption>
  43 #include <QTextLayout>
  44 #include <QTextLine>
  45 #include <QPixmapCache>
  46
  47 // #define KSTANDARDITEMLISTWIDGET_DEBUG
  48
  49 KStandardItemListWidgetInformant::KStandardItemListWidgetInformant() :
  50     KItemListWidgetInformant()
  51 {
  52 }
  53
  54 KStandardItemListWidgetInformant::~KStandardItemListWidgetInformant()
  55 {
  56 }
  57
  58 QSizeF KStandardItemListWidgetInformant::itemSizeHint(int index, const KItemListView* view) const
  59 {
  60     const QHash<QByteArray, QVariant> values = view->model()->data(index);
  61     const KItemListStyleOption& option = view->styleOption();
  62     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
  63
  64     switch (static_cast<const KStandardItemListView*>(view)->itemLayout()) {
  65     case KStandardItemListWidget::IconsLayout: {
  66         const QString text = KStringHandler::preProcessWrap(values["text"].toString());
  67
  68         const qreal itemWidth = view->itemSize().width();
  69         const qreal maxWidth = itemWidth - 2 * option.padding;
  70         QTextLine line;
  71
  72         // Calculate the number of lines required for wrapping the name
  73         QTextOption textOption(Qt::AlignHCenter);
  74         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
  75
  76         qreal textHeight = 0;
  77         QTextLayout layout(text, option.font);
  78         layout.setTextOption(textOption);
  79         layout.beginLayout();
  80         while ((line = layout.createLine()).isValid()) {
  81             line.setLineWidth(maxWidth);
  82             line.naturalTextWidth();
  83             textHeight += line.height();
  84         }
  85         layout.endLayout();
  86
  87         // Add one line for each additional information
  88         textHeight += additionalRolesCount * option.fontMetrics.lineSpacing();
  89
  90         const qreal maxTextHeight = option.maxTextSize.height();
  91         if (maxTextHeight > 0 && textHeight > maxTextHeight) {
  92             textHeight = maxTextHeight;
  93         }
  94
  95         return QSizeF(itemWidth, textHeight + option.iconSize + option.padding * 3);
  96     }
  97
  98     case KStandardItemListWidget::CompactLayout: {
  99         // For each row exactly one role is shown. Calculate the maximum required width that is necessary
 100         // to show all roles without horizontal clipping.
 101         qreal maximumRequiredWidth = 0.0;
 102
 103         foreach (const QByteArray& role, view->visibleRoles()) {
 104             const QString text = roleText(role, values);
 105             const qreal requiredWidth = option.fontMetrics.width(text);
 106             maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth);
 107         }
 108
 109         qreal width = option.padding * 4 + option.iconSize + maximumRequiredWidth;
 110         const qreal maxWidth = option.maxTextSize.width();
 111         if (maxWidth > 0 && width > maxWidth) {
 112             width = maxWidth;
 113         }
 114         const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * option.fontMetrics.lineSpacing());
 115         return QSizeF(width, height);
 116     }
 117
 118     case KStandardItemListWidget::DetailsLayout: {
 119         const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 120         return QSizeF(-1, height);
 121     }
 122
 123     default:
 124         Q_ASSERT(false);
 125         break;
 126     }
 127
 128     return QSize();
 129 }
 130
 131 qreal KStandardItemListWidgetInformant::preferredRoleColumnWidth(const QByteArray& role,
 132                                                                  int index,
 133                                                                  const KItemListView* view) const
 134 {
 135     const QHash<QByteArray, QVariant> values = view->model()->data(index);
 136     const KItemListStyleOption& option = view->styleOption();
 137
 138     const QString text = roleText(role, values);
 139     qreal width = KStandardItemListWidget::columnPadding(option);
 140
 141     if (role == "rating") {
 142         width += KStandardItemListWidget::preferredRatingSize(option).width();
 143     } else {
 144         width += option.fontMetrics.width(text);
 145
 146         if (role == "text") {
 147             if (view->supportsItemExpanding()) {
 148                 // Increase the width by the expansion-toggle and the current expansion level
 149                 const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 150                 const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 151                 width += (expandedParentsCount + 1) * height;
 152             }
 153
 154             // Increase the width by the required space for the icon
 155             width += option.padding * 2 + option.iconSize;
 156         }
 157     }
 158
 159     return width;
 160 }
 161
 162 QString KStandardItemListWidgetInformant::roleText(const QByteArray& role,
 163                                                    const QHash<QByteArray, QVariant>& values) const
 164 {
 165     if (role == "rating") {
 166         // Always use an empty text, as the rating is shown by the image m_rating.
 167         return QString();
 168     }
 169     return values.value(role).toString();
 170 }
 171
 172 KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
 173     KItemListWidget(informant, parent),
 174     m_isCut(false),
 175     m_isHidden(false),
 176     m_customizedFont(),
 177     m_customizedFontMetrics(m_customizedFont),
 178     m_isExpandable(false),
 179     m_supportsItemExpanding(false),
 180     m_dirtyLayout(true),
 181     m_dirtyContent(true),
 182     m_dirtyContentRoles(),
 183     m_layout(IconsLayout),
 184     m_pixmapPos(),
 185     m_pixmap(),
 186     m_scaledPixmapSize(),
 187     m_iconRect(),
 188     m_hoverPixmap(),
 189     m_textInfo(),
 190     m_textRect(),
 191     m_sortedVisibleRoles(),
 192     m_expansionArea(),
 193     m_customTextColor(),
 194     m_additionalInfoTextColor(),
 195     m_overlay(),
 196     m_rating(),
 197     m_roleEditor(0),
 198     m_oldRoleEditor(0)
 199 {
 200 }
 201
 202 KStandardItemListWidget::~KStandardItemListWidget()
 203 {
 204     qDeleteAll(m_textInfo);
 205     m_textInfo.clear();
 206
 207     delete m_roleEditor;
 208     delete m_oldRoleEditor;
 209 }
 210
 211 void KStandardItemListWidget::setLayout(Layout layout)
 212 {
 213     if (m_layout != layout) {
 214         m_layout = layout;
 215         m_dirtyLayout = true;
 216         updateAdditionalInfoTextColor();
 217         update();
 218     }
 219 }
 220
 221 KStandardItemListWidget::Layout KStandardItemListWidget::layout() const
 222 {
 223     return m_layout;
 224 }
 225
 226 void KStandardItemListWidget::setSupportsItemExpanding(bool supportsItemExpanding)
 227 {
 228     if (m_supportsItemExpanding != supportsItemExpanding) {
 229         m_supportsItemExpanding = supportsItemExpanding;
 230         m_dirtyLayout = true;
 231         update();
 232     }
 233 }
 234
 235 bool KStandardItemListWidget::supportsItemExpanding() const
 236 {
 237     return m_supportsItemExpanding;
 238 }
 239
 240 void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
 241 {
 242     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 243
 244     KItemListWidget::paint(painter, option, widget);
 245
 246     if (!m_expansionArea.isEmpty()) {
 247         drawSiblingsInformation(painter);
 248     }
 249
 250     const KItemListStyleOption& itemListStyleOption = styleOption();
 251     if (isHovered()) {
 252         const qreal opacity = painter->opacity();
 253         // Blend the unhovered and hovered pixmap if the hovering
 254         // animation is ongoing
 255         if (hoverOpacity() < 1.0) {
 256             painter->setOpacity((1.0 - hoverOpacity()) * opacity);
 257             drawPixmap(painter, m_pixmap);
 258         }
 259
 260         painter->setOpacity(hoverOpacity() * opacity);
 261         drawPixmap(painter, m_hoverPixmap);
 262         painter->setOpacity(opacity);
 263     } else {
 264         drawPixmap(painter, m_pixmap);
 265     }
 266
 267     painter->setFont(m_customizedFont);
 268     painter->setPen(m_isHidden ? m_additionalInfoTextColor : textColor());
 269     const TextInfo* textInfo = m_textInfo.value("text");
 270
 271     if (!textInfo) {
 272         // It seems that we can end up here even if m_textInfo does not contain
 273         // the key "text", see bug 306167. According to triggerCacheRefreshing(),
 274         // this can only happen if the index is negative. This can happen when
 275         // the item is about to be removed, see KItemListView::slotItemsRemoved().
 276         // TODO: try to reproduce the crash and find a better fix.
 277         return;
 278     }
 279
 280     painter->drawStaticText(textInfo->pos, textInfo->staticText);
 281
 282     bool clipAdditionalInfoBounds = false;
 283     if (m_supportsItemExpanding) {
 284         // Prevent a possible overlapping of the additional-information texts
 285         // with the icon. This can happen if the user has minimized the width
 286         // of the name-column to a very small value.
 287         const qreal minX = m_pixmapPos.x() + m_pixmap.width() + 4 * itemListStyleOption.padding;
 288         if (textInfo->pos.x() + columnWidth("text") > minX) {
 289             clipAdditionalInfoBounds = true;
 290             painter->save();
 291             painter->setClipRect(minX, 0, size().width() - minX, size().height(), Qt::IntersectClip);
 292         }
 293     }
 294
 295     painter->setPen(m_additionalInfoTextColor);
 296     painter->setFont(m_customizedFont);
 297
 298     for (int i = 1; i < m_sortedVisibleRoles.count(); ++i) {
 299         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles[i]);
 300         painter->drawStaticText(textInfo->pos, textInfo->staticText);
 301     }
 302
 303     if (!m_rating.isNull()) {
 304         const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 305         QPointF pos = ratingTextInfo->pos;
 306         const Qt::Alignment align = ratingTextInfo->staticText.textOption().alignment();
 307         if (align & Qt::AlignHCenter) {
 308             pos.rx() += (size().width() - m_rating.width()) / 2 - 2;
 309         }
 310         painter->drawPixmap(pos, m_rating);
 311     }
 312
 313     if (clipAdditionalInfoBounds) {
 314         painter->restore();
 315     }
 316
 317 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
 318     painter->setBrush(Qt::NoBrush);
 319     painter->setPen(Qt::green);
 320     painter->drawRect(m_iconRect);
 321
 322     painter->setPen(Qt::red);
 323     painter->drawText(QPointF(0, m_customizedFontMetrics.height()), QString::number(index()));
 324     painter->drawRect(rect());
 325 #endif
 326 }
 327
 328 QRectF KStandardItemListWidget::iconRect() const
 329 {
 330     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 331     return m_iconRect;
 332 }
 333
 334 QRectF KStandardItemListWidget::textRect() const
 335 {
 336     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 337     return m_textRect;
 338 }
 339
 340 QRectF KStandardItemListWidget::textFocusRect() const
 341 {
 342     // In the compact- and details-layout a larger textRect() is returned to be aligned
 343     // with the iconRect(). This is useful to have a larger selection/hover-area
 344     // when having a quite large icon size but only one line of text. Still the
 345     // focus rectangle should be shown as narrow as possible around the text.
 346
 347     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 348
 349     switch (m_layout) {
 350     case CompactLayout: {
 351         QRectF rect = m_textRect;
 352         const TextInfo* topText    = m_textInfo.value(m_sortedVisibleRoles.first());
 353         const TextInfo* bottomText = m_textInfo.value(m_sortedVisibleRoles.last());
 354         rect.setTop(topText->pos.y());
 355         rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height());
 356         return rect;
 357     }
 358
 359     case DetailsLayout: {
 360         QRectF rect = m_textRect;
 361         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles.first());
 362         rect.setTop(textInfo->pos.y());
 363         rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height());
 364
 365         const KItemListStyleOption& option = styleOption();
 366         if (option.extendedSelectionRegion) {
 367             const QString text = textInfo->staticText.text();
 368             rect.setWidth(m_customizedFontMetrics.width(text) + 2 * option.padding);
 369         }
 370
 371         return rect;
 372     }
 373
 374     default:
 375         break;
 376     }
 377
 378     return m_textRect;
 379 }
 380
 381 QRectF KStandardItemListWidget::expansionToggleRect() const
 382 {
 383     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 384     return m_isExpandable ? m_expansionArea : QRectF();
 385 }
 386
 387 QRectF KStandardItemListWidget::selectionToggleRect() const
 388 {
 389     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 390
 391     const int iconHeight = styleOption().iconSize;
 392
 393     int toggleSize = KIconLoader::SizeSmall;
 394     if (iconHeight >= KIconLoader::SizeEnormous) {
 395         toggleSize = KIconLoader::SizeMedium;
 396     } else if (iconHeight >= KIconLoader::SizeLarge) {
 397         toggleSize = KIconLoader::SizeSmallMedium;
 398     }
 399
 400     QPointF pos = iconRect().topLeft();
 401
 402     // If the selection toggle has a very small distance to the
 403     // widget borders, the size of the selection toggle will get
 404     // increased to prevent an accidental clicking of the item
 405     // when trying to hit the toggle.
 406     const int widgetHeight = size().height();
 407     const int widgetWidth = size().width();
 408     const int minMargin = 2;
 409
 410     if (toggleSize + minMargin * 2 >= widgetHeight) {
 411         pos.rx() -= (widgetHeight - toggleSize) / 2;
 412         toggleSize = widgetHeight;
 413         pos.setY(0);
 414     }
 415     if (toggleSize + minMargin * 2 >= widgetWidth) {
 416         pos.ry() -= (widgetWidth - toggleSize) / 2;
 417         toggleSize = widgetWidth;
 418         pos.setX(0);
 419     }
 420
 421     return QRectF(pos, QSizeF(toggleSize, toggleSize));
 422 }
 423
 424 QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option,
 425                                                   QWidget* widget)
 426 {
 427     QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget);
 428     if (m_layout != DetailsLayout) {
 429         return pixmap;
 430     }
 431
 432     // Only return the content of the text-column as pixmap
 433     const int leftClip = m_pixmapPos.x();
 434
 435     const TextInfo* textInfo = m_textInfo.value("text");
 436     const int rightClip = textInfo->pos.x() +
 437                           textInfo->staticText.size().width() +
 438                           2 * styleOption().padding;
 439
 440     QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height());
 441     clippedPixmap.fill(Qt::transparent);
 442
 443     QPainter painter(&clippedPixmap);
 444     painter.drawPixmap(-leftClip, 0, pixmap);
 445
 446     return clippedPixmap;
 447 }
 448
 449
 450 KItemListWidgetInformant* KStandardItemListWidget::createInformant()
 451 {
 452     return new KStandardItemListWidgetInformant();
 453 }
 454
 455 void KStandardItemListWidget::invalidateCache()
 456 {
 457     m_dirtyLayout = true;
 458     m_dirtyContent = true;
 459 }
 460
 461 void KStandardItemListWidget::refreshCache()
 462 {
 463 }
 464
 465 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray& role) const
 466 {
 467     Q_UNUSED(role);
 468     return false;
 469 }
 470
 471 bool KStandardItemListWidget::isHidden() const
 472 {
 473     return false;
 474 }
 475
 476 QFont KStandardItemListWidget::customizedFont(const QFont& baseFont) const
 477 {
 478     return baseFont;
 479 }
 480
 481 QPalette::ColorRole KStandardItemListWidget::normalTextColorRole() const
 482 {
 483     return QPalette::Text;
 484 }
 485
 486 void KStandardItemListWidget::setTextColor(const QColor& color)
 487 {
 488     if (color != m_customTextColor) {
 489         m_customTextColor = color;
 490         updateAdditionalInfoTextColor();
 491         update();
 492     }
 493 }
 494
 495 QColor KStandardItemListWidget::textColor() const
 496 {
 497     if (m_customTextColor.isValid() && !isSelected()) {
 498         return m_customTextColor;
 499     }
 500
 501     const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
 502     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : normalTextColorRole();
 503     return styleOption().palette.color(group, role);
 504 }
 505
 506 void KStandardItemListWidget::setOverlay(const QPixmap& overlay)
 507 {
 508     m_overlay = overlay;
 509     m_dirtyContent = true;
 510     update();
 511 }
 512
 513 QPixmap KStandardItemListWidget::overlay() const
 514 {
 515     return m_overlay;
 516 }
 517
 518
 519 QString KStandardItemListWidget::roleText(const QByteArray& role,
 520                                           const QHash<QByteArray, QVariant>& values) const
 521 {
 522     return static_cast<const KStandardItemListWidgetInformant*>(informant())->roleText(role, values);
 523 }
 524
 525 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
 526                                           const QSet<QByteArray>& roles)
 527 {
 528     Q_UNUSED(current);
 529
 530     m_dirtyContent = true;
 531
 532     QSet<QByteArray> dirtyRoles;
 533     if (roles.isEmpty()) {
 534         dirtyRoles = visibleRoles().toSet();
 535     } else {
 536         dirtyRoles = roles;
 537     }
 538
 539     // The icon-state might depend from other roles and hence is
 540     // marked as dirty whenever a role has been changed
 541     dirtyRoles.insert("iconPixmap");
 542     dirtyRoles.insert("iconName");
 543
 544     QSetIterator<QByteArray> it(dirtyRoles);
 545     while (it.hasNext()) {
 546         const QByteArray& role = it.next();
 547         m_dirtyContentRoles.insert(role);
 548     }
 549 }
 550
 551 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
 552                                               const QList<QByteArray>& previous)
 553 {
 554     Q_UNUSED(previous);
 555     m_sortedVisibleRoles = current;
 556     m_dirtyLayout = true;
 557 }
 558
 559 void KStandardItemListWidget::columnWidthChanged(const QByteArray& role,
 560                                              qreal current,
 561                                              qreal previous)
 562 {
 563     Q_UNUSED(role);
 564     Q_UNUSED(current);
 565     Q_UNUSED(previous);
 566     m_dirtyLayout = true;
 567 }
 568
 569 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
 570                                              const KItemListStyleOption& previous)
 571 {
 572     Q_UNUSED(current);
 573     Q_UNUSED(previous);
 574     updateAdditionalInfoTextColor();
 575     m_dirtyLayout = true;
 576 }
 577
 578 void KStandardItemListWidget::hoveredChanged(bool hovered)
 579 {
 580     Q_UNUSED(hovered);
 581     m_dirtyLayout = true;
 582 }
 583
 584 void KStandardItemListWidget::selectedChanged(bool selected)
 585 {
 586     Q_UNUSED(selected);
 587     updateAdditionalInfoTextColor();
 588     m_dirtyContent = true;
 589 }
 590
 591 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
 592 {
 593     Q_UNUSED(current);
 594     Q_UNUSED(previous);
 595     m_dirtyLayout = true;
 596 }
 597
 598 int KStandardItemListWidget::selectionLength(const QString& text) const
 599 {
 600     return text.length();
 601 }
 602
 603 void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
 604 {
 605     Q_UNUSED(previous);
 606
 607     QGraphicsView* parent = scene()->views()[0];
 608     if (current.isEmpty() || !parent || current != "text") {
 609         if (m_roleEditor) {
 610             emit roleEditingCanceled(index(), current, data().value(current));
 611
 612             disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 613                        this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 614             disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 615                        this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 616             m_oldRoleEditor = m_roleEditor;
 617             m_roleEditor->hide();
 618             m_roleEditor = 0;
 619         }
 620         return;
 621     } else if (m_oldRoleEditor) {
 622         // Delete the old editor before constructing the new one to
 623         // prevent a memory leak.
 624         m_oldRoleEditor->deleteLater();
 625         m_oldRoleEditor = 0;
 626     }
 627
 628     Q_ASSERT(!m_roleEditor);
 629
 630     const TextInfo* textInfo = m_textInfo.value("text");
 631
 632     m_roleEditor = new KItemListRoleEditor(parent);
 633     m_roleEditor->setIndex(index());
 634     m_roleEditor->setRole(current);
 635     m_roleEditor->setFont(styleOption().font);
 636
 637     const QString text = data().value(current).toString();
 638     m_roleEditor->setPlainText(text);
 639
 640     QTextOption textOption = textInfo->staticText.textOption();
 641     m_roleEditor->document()->setDefaultTextOption(textOption);
 642
 643     const int textSelectionLength = selectionLength(text);
 644
 645     if (textSelectionLength > 0) {
 646         QTextCursor cursor = m_roleEditor->textCursor();
 647         cursor.movePosition(QTextCursor::StartOfBlock);
 648         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength);
 649         m_roleEditor->setTextCursor(cursor);
 650     }
 651
 652     connect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 653             this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 654     connect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 655             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 656
 657     // Adjust the geometry of the editor
 658     QRectF rect = roleEditingRect(current);
 659     const int frameWidth = m_roleEditor->frameWidth();
 660     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 661     rect.translate(pos());
 662     if (rect.right() > parent->width()) {
 663         rect.setWidth(parent->width() - rect.left());
 664     }
 665     m_roleEditor->setGeometry(rect.toRect());
 666     m_roleEditor->show();
 667     m_roleEditor->setFocus();
 668 }
 669
 670 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 671 {
 672     if (m_roleEditor) {
 673         setEditedRole(QByteArray());
 674         Q_ASSERT(!m_roleEditor);
 675     }
 676
 677     KItemListWidget::resizeEvent(event);
 678
 679     m_dirtyLayout = true;
 680 }
 681
 682 void KStandardItemListWidget::showEvent(QShowEvent* event)
 683 {
 684     KItemListWidget::showEvent(event);
 685
 686     // Listen to changes of the clipboard to mark the item as cut/uncut
 687     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 688
 689     const KUrl itemUrl = data().value("url").value<KUrl>();
 690     m_isCut = clipboard->isCut(itemUrl);
 691
 692     connect(clipboard, SIGNAL(cutItemsChanged()),
 693             this, SLOT(slotCutItemsChanged()));
 694 }
 695
 696 void KStandardItemListWidget::hideEvent(QHideEvent* event)
 697 {
 698     disconnect(KFileItemClipboard::instance(), SIGNAL(cutItemsChanged()),
 699                this, SLOT(slotCutItemsChanged()));
 700
 701     KItemListWidget::hideEvent(event);
 702 }
 703
 704 void KStandardItemListWidget::slotCutItemsChanged()
 705 {
 706     const KUrl itemUrl = data().value("url").value<KUrl>();
 707     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 708     if (m_isCut != isCut) {
 709         m_isCut = isCut;
 710         m_pixmap = QPixmap();
 711         m_dirtyContent = true;
 712         update();
 713     }
 714 }
 715
 716 void KStandardItemListWidget::slotRoleEditingCanceled(int index,
 717                                                       const QByteArray& role,
 718                                                       const QVariant& value)
 719 {
 720     closeRoleEditor();
 721     emit roleEditingCanceled(index, role, value);
 722     setEditedRole(QByteArray());
 723 }
 724
 725 void KStandardItemListWidget::slotRoleEditingFinished(int index,
 726                                                       const QByteArray& role,
 727                                                       const QVariant& value)
 728 {
 729     closeRoleEditor();
 730     emit roleEditingFinished(index, role, value);
 731     setEditedRole(QByteArray());
 732 }
 733
 734 void KStandardItemListWidget::triggerCacheRefreshing()
 735 {
 736     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 737         return;
 738     }
 739
 740     refreshCache();
 741
 742     const QHash<QByteArray, QVariant> values = data();
 743     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
 744     m_isHidden = isHidden();
 745     m_customizedFont = customizedFont(styleOption().font);
 746     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
 747
 748     updateExpansionArea();
 749     updateTextsCache();
 750     updatePixmapCache();
 751
 752     m_dirtyLayout = false;
 753     m_dirtyContent = false;
 754     m_dirtyContentRoles.clear();
 755 }
 756
 757 void KStandardItemListWidget::updateExpansionArea()
 758 {
 759     if (m_supportsItemExpanding) {
 760         const QHash<QByteArray, QVariant> values = data();
 761         Q_ASSERT(values.contains("expandedParentsCount"));
 762         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 763         if (expandedParentsCount >= 0) {
 764             const qreal widgetHeight = size().height();
 765             const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2;
 766             const qreal x = expandedParentsCount * widgetHeight + inc;
 767             const qreal y = inc;
 768             m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall);
 769             return;
 770         }
 771     }
 772
 773     m_expansionArea = QRectF();
 774 }
 775
 776 void KStandardItemListWidget::updatePixmapCache()
 777 {
 778     // Precondition: Requires already updated m_textPos values to calculate
 779     // the remaining height when the alignment is vertical.
 780
 781     const QSizeF widgetSize = size();
 782     const bool iconOnTop = (m_layout == IconsLayout);
 783     const KItemListStyleOption& option = styleOption();
 784     const qreal padding = option.padding;
 785
 786     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize;
 787     const int maxIconHeight = option.iconSize;
 788
 789     const QHash<QByteArray, QVariant> values = data();
 790
 791     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
 792     if (!updatePixmap && m_dirtyContent) {
 793         updatePixmap = m_dirtyContentRoles.isEmpty()
 794                        || m_dirtyContentRoles.contains("iconPixmap")
 795                        || m_dirtyContentRoles.contains("iconName")
 796                        || m_dirtyContentRoles.contains("iconOverlays");
 797     }
 798
 799     if (updatePixmap) {
 800         m_pixmap = values["iconPixmap"].value<QPixmap>();
 801         if (m_pixmap.isNull()) {
 802             // Use the icon that fits to the MIME-type
 803             QString iconName = values["iconName"].toString();
 804             if (iconName.isEmpty()) {
 805                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
 806                 // use a generic icon as fallback
 807                 iconName = QLatin1String("unknown");
 808             }
 809             m_pixmap = pixmapForIcon(iconName, maxIconHeight);
 810         } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
 811             // A custom pixmap has been applied. Assure that the pixmap
 812             // is scaled to the maximum available size.
 813             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
 814         }
 815
 816         const QStringList overlays = values["iconOverlays"].toStringList();
 817
 818         // Strangely KFileItem::overlays() returns empty string-values, so
 819         // we need to check first whether an overlay must be drawn at all.
 820         // It is more efficient to do it here, as KIconLoader::drawOverlays()
 821         // assumes that an overlay will be drawn and has some additional
 822         // setup time.
 823         foreach (const QString& overlay, overlays) {
 824             if (!overlay.isEmpty()) {
 825                 // There is at least one overlay, draw all overlays above m_pixmap
 826                 // and cancel the check
 827                 KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop);
 828                 break;
 829             }
 830         }
 831
 832         if (m_isCut) {
 833             KIconEffect* effect = KIconLoader::global()->iconEffect();
 834             m_pixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 835         }
 836
 837         if (m_isHidden) {
 838             KIconEffect::semiTransparent(m_pixmap);
 839         }
 840
 841         if (isSelected()) {
 842             const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
 843             QImage image = m_pixmap.toImage();
 844             KIconEffect::colorize(image, color, 0.8f);
 845             m_pixmap = QPixmap::fromImage(image);
 846         }
 847     }
 848
 849     if (!m_overlay.isNull()) {
 850         QPainter painter(&m_pixmap);
 851         painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay);
 852     }
 853
 854     int scaledIconSize = 0;
 855     if (iconOnTop) {
 856         const TextInfo* textInfo = m_textInfo.value("text");
 857         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
 858     } else {
 859         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
 860         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
 861         scaledIconSize = (requiredTextHeight < maxIconHeight) ?
 862                            widgetSize.height() - 2 * padding : maxIconHeight;
 863     }
 864
 865     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
 866     const int maxScaledIconHeight = scaledIconSize;
 867
 868     m_scaledPixmapSize = m_pixmap.size();
 869     m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio);
 870
 871     if (iconOnTop) {
 872         // Center horizontally and align on bottom within the icon-area
 873         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2);
 874         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
 875     } else {
 876         // Center horizontally and vertically within the icon-area
 877         const TextInfo* textInfo = m_textInfo.value("text");
 878         m_pixmapPos.setX(textInfo->pos.x() - 2 * padding
 879                          - (scaledIconSize + m_scaledPixmapSize.width()) / 2);
 880         m_pixmapPos.setY(padding
 881                          + (scaledIconSize - m_scaledPixmapSize.height()) / 2);
 882     }
 883
 884     m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
 885
 886     // Prepare the pixmap that is used when the item gets hovered
 887     if (isHovered()) {
 888         m_hoverPixmap = m_pixmap;
 889         KIconEffect* effect = KIconLoader::global()->iconEffect();
 890         // In the KIconLoader terminology, active = hover.
 891         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
 892             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
 893         } else {
 894             m_hoverPixmap = m_pixmap;
 895         }
 896     } else if (hoverOpacity() <= 0.0) {
 897         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
 898         m_hoverPixmap = QPixmap();
 899     }
 900 }
 901
 902 void KStandardItemListWidget::updateTextsCache()
 903 {
 904     QTextOption textOption;
 905     switch (m_layout) {
 906     case IconsLayout:
 907         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 908         textOption.setAlignment(Qt::AlignHCenter);
 909         break;
 910     case CompactLayout:
 911     case DetailsLayout:
 912         textOption.setAlignment(Qt::AlignLeft);
 913         textOption.setWrapMode(QTextOption::NoWrap);
 914         break;
 915     default:
 916         Q_ASSERT(false);
 917         break;
 918     }
 919
 920     qDeleteAll(m_textInfo);
 921     m_textInfo.clear();
 922     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
 923         TextInfo* textInfo = new TextInfo();
 924         textInfo->staticText.setTextFormat(Qt::PlainText);
 925         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
 926         textInfo->staticText.setTextOption(textOption);
 927         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
 928     }
 929
 930     switch (m_layout) {
 931     case IconsLayout:   updateIconsLayoutTextCache(); break;
 932     case CompactLayout: updateCompactLayoutTextCache(); break;
 933     case DetailsLayout: updateDetailsLayoutTextCache(); break;
 934     default: Q_ASSERT(false); break;
 935     }
 936
 937     const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 938     if (ratingTextInfo) {
 939         // The text of the rating-role has been set to empty to get
 940         // replaced by a rating-image showing the rating as stars.
 941         const KItemListStyleOption& option = styleOption();
 942         QSizeF ratingSize = preferredRatingSize(option);
 943
 944         const qreal availableWidth = (m_layout == DetailsLayout)
 945                                      ? columnWidth("rating") - columnPadding(option)
 946                                      : size().width();
 947         if (ratingSize.width() > availableWidth) {
 948             ratingSize.rwidth() = availableWidth;
 949         }
 950         m_rating = QPixmap(ratingSize.toSize());
 951         m_rating.fill(Qt::transparent);
 952
 953         QPainter painter(&m_rating);
 954         const QRect rect(0, 0, m_rating.width(), m_rating.height());
 955         const int rating = data().value("rating").toInt();
 956         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
 957     } else if (!m_rating.isNull()) {
 958         m_rating = QPixmap();
 959     }
 960 }
 961
 962 void KStandardItemListWidget::updateIconsLayoutTextCache()
 963 {
 964     //      +------+
 965     //      | Icon |
 966     //      +------+
 967     //
 968     //    Name role that
 969     // might get wrapped above
 970     //    several lines.
 971     //  Additional role 1
 972     //  Additional role 2
 973
 974     const QHash<QByteArray, QVariant> values = data();
 975
 976     const KItemListStyleOption& option = styleOption();
 977     const qreal padding = option.padding;
 978     const qreal maxWidth = size().width() - 2 * padding;
 979     const qreal widgetHeight = size().height();
 980     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
 981
 982     // Initialize properties for the "text" role. It will be used as anchor
 983     // for initializing the position of the other roles.
 984     TextInfo* nameTextInfo = m_textInfo.value("text");
 985     const QString nameText = KStringHandler::preProcessWrap(values["text"].toString());
 986     nameTextInfo->staticText.setText(nameText);
 987
 988     // Calculate the number of lines required for the name and the required width
 989     qreal nameWidth = 0;
 990     qreal nameHeight = 0;
 991     QTextLine line;
 992
 993     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
 994     const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount;
 995
 996     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
 997     layout.setTextOption(nameTextInfo->staticText.textOption());
 998     layout.beginLayout();
 999     int nameLineIndex = 0;
1000     while ((line = layout.createLine()).isValid()) {
1001         line.setLineWidth(maxWidth);
1002         nameWidth = qMax(nameWidth, line.naturalTextWidth());
1003         nameHeight += line.height();
1004
1005         ++nameLineIndex;
1006         if (nameLineIndex == maxNameLines) {
1007             // The maximum number of textlines has been reached. If this is
1008             // the case provide an elided text if necessary.
1009             const int textLength = line.textStart() + line.textLength();
1010             if (textLength < nameText.length()) {
1011                 // Elide the last line of the text
1012                 QString lastTextLine = nameText.mid(line.textStart(), line.textLength());
1013                 lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine,
1014                                                                   Qt::ElideRight,
1015                                                                   line.naturalTextWidth() - 1);
1016                 const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
1017                 nameTextInfo->staticText.setText(elidedText);
1018             }
1019             break;
1020         }
1021     }
1022     layout.endLayout();
1023
1024     // Use one line for each additional information
1025     nameTextInfo->staticText.setTextWidth(maxWidth);
1026     nameTextInfo->pos = QPointF(padding, widgetHeight -
1027                                          nameHeight -
1028                                          additionalRolesCount * lineSpacing -
1029                                          padding);
1030     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
1031                         nameTextInfo->pos.y(),
1032                         nameWidth,
1033                         nameHeight);
1034
1035     // Calculate the position for each additional information
1036     qreal y = nameTextInfo->pos.y() + nameHeight;
1037     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1038         if (role == "text") {
1039             continue;
1040         }
1041
1042         const QString text = roleText(role, values);
1043         TextInfo* textInfo = m_textInfo.value(role);
1044         textInfo->staticText.setText(text);
1045
1046         qreal requiredWidth = 0;
1047
1048         QTextLayout layout(text, m_customizedFont);
1049         QTextOption textOption;
1050         textOption.setWrapMode(QTextOption::NoWrap);
1051         layout.setTextOption(textOption);
1052
1053         layout.beginLayout();
1054         QTextLine textLine = layout.createLine();
1055         if (textLine.isValid()) {
1056             textLine.setLineWidth(maxWidth);
1057             requiredWidth = textLine.naturalTextWidth();
1058             if (requiredWidth > maxWidth) {
1059                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1060                 textInfo->staticText.setText(elidedText);
1061                 requiredWidth = m_customizedFontMetrics.width(elidedText);
1062             } else if (role == "rating") {
1063                 // Use the width of the rating pixmap, because the rating text is empty.
1064                 requiredWidth = m_rating.width();
1065             }
1066         }
1067         layout.endLayout();
1068
1069         textInfo->pos = QPointF(padding, y);
1070         textInfo->staticText.setTextWidth(maxWidth);
1071
1072         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1073         m_textRect |= textRect;
1074
1075         y += lineSpacing;
1076     }
1077
1078     // Add a padding to the text rectangle
1079     m_textRect.adjust(-padding, -padding, padding, padding);
1080 }
1081
1082 void KStandardItemListWidget::updateCompactLayoutTextCache()
1083 {
1084     // +------+  Name role
1085     // | Icon |  Additional role 1
1086     // +------+  Additional role 2
1087
1088     const QHash<QByteArray, QVariant> values = data();
1089
1090     const KItemListStyleOption& option = styleOption();
1091     const qreal widgetHeight = size().height();
1092     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1093     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1094     const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize;
1095
1096     qreal maximumRequiredTextWidth = 0;
1097     const qreal x = option.padding * 3 + scaledIconSize;
1098     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1099     const qreal maxWidth = size().width() - x - option.padding;
1100     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1101         const QString text = roleText(role, values);
1102         TextInfo* textInfo = m_textInfo.value(role);
1103         textInfo->staticText.setText(text);
1104
1105         qreal requiredWidth = m_customizedFontMetrics.width(text);
1106         if (requiredWidth > maxWidth) {
1107             requiredWidth = maxWidth;
1108             const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1109             textInfo->staticText.setText(elidedText);
1110         }
1111
1112         textInfo->pos = QPointF(x, y);
1113         textInfo->staticText.setTextWidth(maxWidth);
1114
1115         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1116
1117         y += lineSpacing;
1118     }
1119
1120     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1121 }
1122
1123 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1124 {
1125     // Precondition: Requires already updated m_expansionArea
1126     // to determine the left position.
1127
1128     // +------+
1129     // | Icon |  Name role   Additional role 1   Additional role 2
1130     // +------+
1131     m_textRect = QRectF();
1132
1133     const KItemListStyleOption& option = styleOption();
1134     const QHash<QByteArray, QVariant> values = data();
1135
1136     const qreal widgetHeight = size().height();
1137     const int scaledIconSize = widgetHeight - 2 * option.padding;
1138     const int fontHeight = m_customizedFontMetrics.height();
1139
1140     const qreal columnWidthInc = columnPadding(option);
1141     qreal firstColumnInc = scaledIconSize;
1142     if (m_supportsItemExpanding) {
1143         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
1144     } else {
1145         firstColumnInc += option.padding;
1146     }
1147
1148     qreal x = firstColumnInc;
1149     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1150
1151     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1152         QString text = roleText(role, values);
1153
1154         // Elide the text in case it does not fit into the available column-width
1155         qreal requiredWidth = m_customizedFontMetrics.width(text);
1156         const qreal roleWidth = columnWidth(role);
1157         qreal availableTextWidth = roleWidth - columnWidthInc;
1158
1159         const bool isTextRole = (role == "text");
1160         if (isTextRole) {
1161             availableTextWidth -= firstColumnInc;
1162         }
1163
1164         if (requiredWidth > availableTextWidth) {
1165             text = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1166             requiredWidth = m_customizedFontMetrics.width(text);
1167         }
1168
1169         TextInfo* textInfo = m_textInfo.value(role);
1170         textInfo->staticText.setText(text);
1171         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
1172         x += roleWidth;
1173
1174         if (isTextRole) {
1175             const qreal textWidth = option.extendedSelectionRegion
1176                                     ? size().width() - textInfo->pos.x()
1177                                     : requiredWidth + 2 * option.padding;
1178             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0,
1179                                 textWidth, size().height());
1180
1181             // The column after the name should always be aligned on the same x-position independent
1182             // from the expansion-level shown in the name column
1183             x -= firstColumnInc;
1184         } else if (isRoleRightAligned(role)) {
1185             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1186         }
1187     }
1188 }
1189
1190 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1191 {
1192     QColor c1;
1193     if (m_customTextColor.isValid()) {
1194         c1 = m_customTextColor;
1195     } else if (isSelected() && m_layout != DetailsLayout) {
1196         c1 = styleOption().palette.highlightedText().color();
1197     } else {
1198         c1 = styleOption().palette.text().color();
1199     }
1200
1201     // For the color of the additional info the inactive text color
1202     // is not used as this might lead to unreadable text for some color schemes. Instead
1203     // the text color c1 is slightly mixed with the background color.
1204     const QColor c2 = styleOption().palette.base().color();
1205     const int p1 = 70;
1206     const int p2 = 100 - p1;
1207     m_additionalInfoTextColor = QColor((c1.red()   * p1 + c2.red()   * p2) / 100,
1208                                        (c1.green() * p1 + c2.green() * p2) / 100,
1209                                        (c1.blue()  * p1 + c2.blue()  * p2) / 100);
1210 }
1211
1212 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
1213 {
1214     if (m_scaledPixmapSize != pixmap.size()) {
1215         QPixmap scaledPixmap = pixmap;
1216         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
1217         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1218
1219 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1220         painter->setPen(Qt::blue);
1221         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1222 #endif
1223     } else {
1224         painter->drawPixmap(m_pixmapPos, pixmap);
1225     }
1226 }
1227
1228 void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
1229 {
1230     const int siblingSize = size().height();
1231     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1232     QRect siblingRect(x, 0, siblingSize, siblingSize);
1233
1234     QStyleOption option;
1235     option.palette.setColor(QPalette::Text, option.palette.color(normalTextColorRole()));
1236     bool isItemSibling = true;
1237
1238     const QBitArray siblings = siblingsInformation();
1239     for (int i = siblings.count() - 1; i >= 0; --i) {
1240         option.rect = siblingRect;
1241         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1242
1243         if (isItemSibling) {
1244             option.state |= QStyle::State_Item;
1245             if (m_isExpandable) {
1246                 option.state |= QStyle::State_Children;
1247             }
1248             if (data()["isExpanded"].toBool()) {
1249                 option.state |= QStyle::State_Open;
1250             }
1251             isItemSibling = false;
1252         }
1253
1254         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1255
1256         siblingRect.translate(-siblingRect.width(), 0);
1257     }
1258 }
1259
1260 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
1261 {
1262     const TextInfo* textInfo = m_textInfo.value(role);
1263     if (!textInfo) {
1264         return QRectF();
1265     }
1266
1267     QRectF rect(textInfo->pos, textInfo->staticText.size());
1268     if (m_layout == DetailsLayout) {
1269         rect.setWidth(columnWidth(role) - rect.x());
1270     }
1271
1272     return rect;
1273 }
1274
1275 void KStandardItemListWidget::closeRoleEditor()
1276 {
1277     disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
1278                this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
1279     disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
1280                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
1281
1282     if (m_roleEditor->hasFocus()) {
1283         // If the editing was not ended by a FocusOut event, we have
1284         // to transfer the keyboard focus back to the KItemListContainer.
1285         scene()->views()[0]->parentWidget()->setFocus();
1286     }
1287
1288     m_oldRoleEditor = m_roleEditor;
1289     m_roleEditor->hide();
1290     m_roleEditor = 0;
1291 }
1292
1293 QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, int size)
1294 {
1295     const QString key = "KStandardItemListWidget:" % name  % ":" % QString::number(size);
1296     QPixmap pixmap;
1297
1298     if (!QPixmapCache::find(key, pixmap)) {
1299         const KIcon icon(name);
1300
1301         int requestedSize;
1302         if (size <= KIconLoader::SizeSmall) {
1303             requestedSize = KIconLoader::SizeSmall;
1304         } else if (size <= KIconLoader::SizeSmallMedium) {
1305             requestedSize = KIconLoader::SizeSmallMedium;
1306         } else if (size <= KIconLoader::SizeMedium) {
1307             requestedSize = KIconLoader::SizeMedium;
1308         } else if (size <= KIconLoader::SizeLarge) {
1309             requestedSize = KIconLoader::SizeLarge;
1310         } else if (size <= KIconLoader::SizeHuge) {
1311             requestedSize = KIconLoader::SizeHuge;
1312         } else if (size <= KIconLoader::SizeEnormous) {
1313             requestedSize = KIconLoader::SizeEnormous;
1314         } else if (size <= KIconLoader::SizeEnormous * 2) {
1315             requestedSize = KIconLoader::SizeEnormous * 2;
1316         } else {
1317             requestedSize = size;
1318         }
1319
1320         pixmap = icon.pixmap(requestedSize, requestedSize);
1321         if (requestedSize != size) {
1322             KPixmapModifier::scale(pixmap, QSize(size, size));
1323         }
1324
1325         QPixmapCache::insert(key, pixmap);
1326     }
1327
1328     return pixmap;
1329 }
1330
1331 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption& option)
1332 {
1333     const qreal height = option.fontMetrics.ascent();
1334     return QSizeF(height * 5, height);
1335 }
1336
1337 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption& option)
1338 {
1339     return option.padding * 6;
1340 }
1341
1342 #include "kstandarditemlistwidget.moc"