#include "iconmanager.h"
-#include "dolphinmodel.h"
-#include "dolphinsortfilterproxymodel.h"
-
#include <kiconeffect.h>
#include <kio/previewjob.h>
#include <kdirlister.h>
+#include <kdirmodel.h>
+#include <kdirsortfilterproxymodel.h>
#include <kmimetyperesolver.h>
#include <konqmimedata.h>
QListView* m_view;
};
-IconManager::IconManager(QAbstractItemView* parent, DolphinSortFilterProxyModel* model) :
+IconManager::IconManager(QAbstractItemView* parent, KDirSortFilterProxyModel* model) :
QObject(parent),
m_showPreview(false),
m_clearItemQueues(true),
+ m_hasCutSelection(false),
+ m_pendingVisiblePreviews(0),
m_view(parent),
m_previewTimer(0),
m_scrollAreaTimer(0),
m_previewJobs(),
- m_dolphinModel(0),
+ m_dirModel(0),
m_proxyModel(model),
m_mimeTypeResolver(0),
m_cutItemsCache(),
{
Q_ASSERT(m_view->iconSize().isValid()); // each view must provide its current icon size
- m_dolphinModel = static_cast<DolphinModel*>(m_proxyModel->sourceModel());
- connect(m_dolphinModel->dirLister(), SIGNAL(newItems(const KFileItemList&)),
+ m_dirModel = static_cast<KDirModel*>(m_proxyModel->sourceModel());
+ connect(m_dirModel->dirLister(), SIGNAL(newItems(const KFileItemList&)),
this, SLOT(generatePreviews(const KFileItemList&)));
QClipboard* clipboard = QApplication::clipboard();
}
}
-
void IconManager::setShowPreview(bool show)
{
if (m_showPreview != show) {
} else if (!show && (m_mimeTypeResolver == 0)) {
// the preview is turned off: resolve the MIME-types so that
// the icons gets updated
- m_mimeTypeResolver = new KMimeTypeResolver(m_view, m_dolphinModel);
+ m_mimeTypeResolver = new KMimeTypeResolver(m_view, m_dirModel);
}
}
m_dispatchedItems.clear();
KFileItemList itemList;
- const int rowCount = m_dolphinModel->rowCount();
+ const int rowCount = m_dirModel->rowCount();
for (int row = 0; row < rowCount; ++row) {
- const QModelIndex index = m_dolphinModel->index(row, 0);
- KFileItem item = m_dolphinModel->itemForIndex(index);
+ const QModelIndex index = m_dirModel->index(row, 0);
+ KFileItem item = m_dirModel->itemForIndex(index);
itemList.append(item);
}
void IconManager::addToPreviewQueue(const KFileItem& item, const QPixmap& pixmap)
{
+ if (!m_showPreview) {
+ // the preview has been canceled in the meantime
+ return;
+ }
+ const KUrl url = item.url();
+
+ // check whether the item is part of the directory lister (it is possible
+ // that a preview from an old directory lister is received)
+ KDirLister* dirLister = m_dirModel->dirLister();
+ bool isOldPreview = true;
+ const KUrl::List dirs = dirLister->directories();
+ const QString itemDir = url.directory();
+ foreach (const KUrl& url, dirs) {
+ if (url.path() == itemDir) {
+ isOldPreview = false;
+ break;
+ }
+ }
+ if (isOldPreview) {
+ return;
+ }
+
+ QPixmap icon = pixmap;
+
+ const QString mimeType = item.mimetype();
+ const QString mimeTypeGroup = mimeType.left(mimeType.indexOf('/'));
+ if ((mimeTypeGroup != "image") || !applyImageFrame(icon)) {
+ limitToSize(icon, m_view->iconSize());
+ }
+
+ if (m_hasCutSelection && isCutItem(item)) {
+ // Remember the current icon in the cache for cut items before
+ // the disabled effect is applied. This makes it possible restoring
+ // the uncut version again when cutting other items.
+ QList<ItemInfo>::iterator begin = m_cutItemsCache.begin();
+ QList<ItemInfo>::iterator end = m_cutItemsCache.end();
+ for (QList<ItemInfo>::iterator it = begin; it != end; ++it) {
+ if ((*it).url == item.url()) {
+ (*it).pixmap = icon;
+ break;
+ }
+ }
+
+ // apply the disabled effect to the icon for marking it as "cut item"
+ // and apply the icon to the item
+ KIconEffect iconEffect;
+ icon = iconEffect.apply(icon, KIconLoader::Desktop, KIconLoader::DisabledState);
+ }
+
+ // remember the preview and URL, so that it can be applied to the model
+ // in IconManager::dispatchPreviewQueue()
ItemInfo preview;
- preview.url = item.url();
- preview.pixmap = pixmap;
+ preview.url = url;
+ preview.pixmap = icon;
m_previews.append(preview);
m_dispatchedItems.append(item);
if ((m_previewJobs.count() == 0) && m_clearItemQueues) {
m_pendingItems.clear();
m_dispatchedItems.clear();
+ m_pendingVisiblePreviews = 0;
+ QMetaObject::invokeMethod(this, "dispatchPreviewQueue", Qt::QueuedConnection);
}
}
// restore the icons of all previously selected items to the
// original state...
foreach (const ItemInfo& cutItem, m_cutItemsCache) {
- const QModelIndex index = m_dolphinModel->indexForUrl(cutItem.url);
+ const QModelIndex index = m_dirModel->indexForUrl(cutItem.url);
if (index.isValid()) {
- m_dolphinModel->setData(index, QIcon(cutItem.pixmap), Qt::DecorationRole);
+ m_dirModel->setData(index, QIcon(cutItem.pixmap), Qt::DecorationRole);
}
}
m_cutItemsCache.clear();
void IconManager::dispatchPreviewQueue()
{
- int previewsCount = m_previews.count();
+ const int previewsCount = m_previews.count();
if (previewsCount > 0) {
// Applying the previews to the model must be done step by step
// in larger blocks: Applying a preview immediately when getting the signal
// 'gotPreview()' from the PreviewJob is too expensive, as a relayout
// of the view would be triggered for each single preview.
-
- int dispatchCount = 30;
- if (dispatchCount > previewsCount) {
- dispatchCount = previewsCount;
- }
-
LayoutBlocker blocker(m_view);
- for (int i = 0; i < dispatchCount; ++i) {
+ for (int i = 0; i < previewsCount; ++i) {
const ItemInfo& preview = m_previews.first();
- replaceIcon(preview.url, preview.pixmap);
+
+ const QModelIndex idx = m_dirModel->indexForUrl(preview.url);
+ if (idx.isValid() && (idx.column() == 0)) {
+ m_dirModel->setData(idx, QIcon(preview.pixmap), Qt::DecorationRole);
+ }
+
m_previews.pop_front();
+ if (m_pendingVisiblePreviews > 0) {
+ --m_pendingVisiblePreviews;
+ }
}
-
- previewsCount = m_previews.count();
}
- const bool workingPreviewJobs = (m_previewJobs.count() > 0);
- if (workingPreviewJobs) {
- // poll for previews as long as not all preview jobs are finished
+ if (m_pendingVisiblePreviews > 0) {
+ // As long as there are pending previews for visible items, poll
+ // the preview queue each 200 ms. If there are no pending previews,
+ // the queue is dispatched in slotPreviewJobFinished().
m_previewTimer->start(200);
- } else if (previewsCount > 0) {
- // all preview jobs are finished but there are still pending previews
- // in the queue -> poll more aggressively
- m_previewTimer->start(10);
}
}
}
m_dispatchedItems.clear();
+ m_pendingVisiblePreviews = 0;
+ dispatchPreviewQueue();
+
KFileItemList orderedItems = m_pendingItems;
orderItems(orderedItems);
startPreviewJob(orderedItems);
}
-void IconManager::replaceIcon(const KUrl& url, const QPixmap& pixmap)
-{
- Q_ASSERT(url.isValid());
- if (!m_showPreview) {
- // the preview has been canceled in the meantime
- return;
- }
-
- // check whether the item is part of the directory lister (it is possible
- // that a preview from an old directory lister is received)
- KDirLister* dirLister = m_dolphinModel->dirLister();
- bool isOldPreview = true;
- const KUrl::List dirs = dirLister->directories();
- const QString itemDir = url.directory();
- foreach (const KUrl& url, dirs) {
- if (url.path() == itemDir) {
- isOldPreview = false;
- break;
- }
- }
- if (isOldPreview) {
- return;
- }
-
- const QModelIndex idx = m_dolphinModel->indexForUrl(url);
- if (idx.isValid() && (idx.column() == 0)) {
- QPixmap icon = pixmap;
-
- const KFileItem item = m_dolphinModel->itemForIndex(idx);
- const QString mimeType = item.mimetype();
- const QString mimeTypeGroup = mimeType.left(mimeType.indexOf('/'));
- if ((mimeTypeGroup != "image") || !applyImageFrame(icon)) {
- limitToSize(icon, m_view->iconSize());
- }
-
- const QMimeData* mimeData = QApplication::clipboard()->mimeData();
- if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
- // Remember the current icon in the cache for cut items before
- // the disabled effect is applied. This makes it possible restoring
- // the uncut version again when cutting other items.
- QList<ItemInfo>::iterator begin = m_cutItemsCache.begin();
- QList<ItemInfo>::iterator end = m_cutItemsCache.end();
- for (QList<ItemInfo>::iterator it = begin; it != end; ++it) {
- if ((*it).url == item.url()) {
- (*it).pixmap = icon;
- break;
- }
- }
-
- // apply the disabled effect to the icon for marking it as "cut item"
- // and apply the icon to the item
- KIconEffect iconEffect;
- icon = iconEffect.apply(icon, KIconLoader::Desktop, KIconLoader::DisabledState);
- m_dolphinModel->setData(idx, QIcon(icon), Qt::DecorationRole);
- } else {
- m_dolphinModel->setData(idx, QIcon(icon), Qt::DecorationRole);
- }
- }
-}
-
bool IconManager::isCutItem(const KFileItem& item) const
{
const QMimeData* mimeData = QApplication::clipboard()->mimeData();
void IconManager::applyCutItemEffect()
{
const QMimeData* mimeData = QApplication::clipboard()->mimeData();
- if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
+ m_hasCutSelection = KonqMimeData::decodeIsCutSelection(mimeData);
+ if (!m_hasCutSelection) {
return;
}
KFileItemList items;
- KDirLister* dirLister = m_dolphinModel->dirLister();
+ KDirLister* dirLister = m_dirModel->dirLister();
const KUrl::List dirs = dirLister->directories();
foreach (const KUrl& url, dirs) {
items << dirLister->itemsForDir(url);
foreach (const KFileItem& item, items) {
if (isCutItem(item)) {
- const QModelIndex index = m_dolphinModel->indexForItem(item);
- const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
+ const QModelIndex index = m_dirModel->indexForItem(item);
+ const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
if (value.type() == QVariant::Icon) {
const QIcon icon(qvariant_cast<QIcon>(value));
const QSize actualSize = icon.actualSize(m_view->iconSize());
// apply icon effect to the cut item
KIconEffect iconEffect;
pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
- m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
+ m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
}
}
}
void IconManager::limitToSize(QPixmap& icon, const QSize& maxSize)
{
if ((icon.width() > maxSize.width()) || (icon.height() > maxSize.height())) {
- icon = icon.scaled(maxSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
+ icon = icon.scaled(maxSize, Qt::KeepAspectRatio, Qt::FastTransformation);
}
}
return;
}
+ const QMimeData* mimeData = QApplication::clipboard()->mimeData();
+ m_hasCutSelection = KonqMimeData::decodeIsCutSelection(mimeData);
+
const QSize size = m_view->iconSize();
- KIO::PreviewJob* job = KIO::filePreview(items, 128, 128);
+
+ // PreviewJob internally caches items always with the size of
+ // 128 x 128 pixels or 256 x 256 pixels. A downscaling is done
+ // by PreviewJob if a smaller size is requested. As the IconManager must
+ // do a downscaling anyhow because of the frame, only the provided
+ // cache sizes are requested.
+ const int cacheSize = (size.width() > 128) || (size.height() > 128) ? 256 : 128;
+ KIO::PreviewJob* job = KIO::filePreview(items, cacheSize, cacheSize);
connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
this, SLOT(addToPreviewQueue(const KFileItem&, const QPixmap&)));
connect(job, SIGNAL(finished(KJob*)),
const int rowCount = m_proxyModel->rowCount();
const QRect visibleArea = m_view->viewport()->rect();
+ int insertPos = 0;
if (itemCount * 10 > rowCount) {
// Algorithm 1: The number of items is > 10 % of the row count. Parse all rows
// and check whether the received row is part of the item list.
const QRect itemRect = m_view->visualRect(proxyIndex);
const QModelIndex dirIndex = m_proxyModel->mapToSource(proxyIndex);
- KFileItem item = m_dolphinModel->itemForIndex(dirIndex); // O(1)
+ KFileItem item = m_dirModel->itemForIndex(dirIndex); // O(1)
const KUrl url = item.url();
// check whether the item is part of the item list 'items'
// to the front of the list, so that the preview is
// generated earlier.
items.removeAt(index);
- items.insert(0, item);
+ items.insert(insertPos, item);
+ ++insertPos;
+ ++m_pendingVisiblePreviews;
}
}
} else {
// Algorithm 2: The number of items is <= 10 % of the row count. In this case iterate
// all items and receive the corresponding row from the item.
for (int i = 0; i < itemCount; ++i) {
- const QModelIndex dirIndex = m_dolphinModel->indexForItem(items[i]); // O(n) (n = number of rows)
+ const QModelIndex dirIndex = m_dirModel->indexForItem(items[i]); // O(n) (n = number of rows)
const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
const QRect itemRect = m_view->visualRect(proxyIndex);
// The current item is (at least partly) visible. Move it
// to the front of the list, so that the preview is
// generated earlier.
- items.insert(0, items[i]);
+ items.insert(insertPos, items[i]);
items.removeAt(i + 1);
+ ++insertPos;
+ ++m_pendingVisiblePreviews;
}
}
}
projects / dolphin.git / blobdiff