[KStandardItemListWidget] Update icon when palette changes

[dolphin.git] / src / kitemviews / kstandarditemlistwidget.cpp

diff --git a/src/kitemviews/kstandarditemlistwidget.cpp b/src/kitemviews/kstandarditemlistwidget.cpp
index 9a08a53dbd9c1daad1fa73dff1c896dca3a26302..1c89edb6e7b30b6a6f52e80f5935831fa946d88b 100644 (file)
--- a/src/kitemviews/kstandarditemlistwidget.cpp
+++ b/src/kitemviews/kstandarditemlistwidget.cpp
@@ -25,9 +25,8 @@
 #include <QIcon>
 #include <KIconEffect>
 #include <KIconLoader>
-#include <kratingpainter.h>
+#include <KRatingPainter>
 #include <KStringHandler>
-#include <KDebug>
 
 #include "private/kfileitemclipboard.h"
 #include "private/kitemlistroleeditor.h"
@@ -41,6 +40,7 @@
 #include <QTextLayout>
 #include <QTextLine>
 #include <QPixmapCache>
+#include <QGuiApplication>
 
 // #define KSTANDARDITEMLISTWIDGET_DEBUG
 
@@ -118,6 +118,8 @@ QString KStandardItemListWidgetInformant::itemText(int index, const KItemListVie
 
 bool KStandardItemListWidgetInformant::itemIsLink(int index, const KItemListView* view) const
 {
+    Q_UNUSED(index);
+    Q_UNUSED(view);
     return false;
 }
 
@@ -341,6 +343,7 @@ void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphic
              */
             // Paint pixmap1 so that pixmap1 = m_pixmap * (1.0 - hoverOpacity())
             QPixmap pixmap1(m_pixmap.size());
+            pixmap1.setDevicePixelRatio(m_pixmap.devicePixelRatio());
             pixmap1.fill(Qt::transparent);
             {
                 QPainter p(&pixmap1);
@@ -350,6 +353,7 @@ void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphic
 
             // Paint pixmap2 so that pixmap2 = m_hoverPixmap * hoverOpacity()
             QPixmap pixmap2(pixmap1.size());
+            pixmap2.setDevicePixelRatio(pixmap1.devicePixelRatio());
             pixmap2.fill(Qt::transparent);
             {
                 QPainter p(&pixmap2);
@@ -680,7 +684,7 @@ void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& cur
     // The URL might have changed (i.e., if the sort order of the items has
     // been changed). Therefore, the "is cut" state must be updated.
     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
-    const KUrl itemUrl = data().value("url").value<KUrl>();
+    const QUrl itemUrl = data().value("url").toUrl();
     m_isCut = clipboard->isCut(itemUrl);
 
     // The icon-state might depend from other roles and hence is
@@ -831,7 +835,7 @@ void KStandardItemListWidget::showEvent(QShowEvent* event)
     // Listen to changes of the clipboard to mark the item as cut/uncut
     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 
-    const KUrl itemUrl = data().value("url").value<KUrl>();
+    const QUrl itemUrl = data().value("url").toUrl();
     m_isCut = clipboard->isCut(itemUrl);
 
     connect(clipboard, &KFileItemClipboard::cutItemsChanged,
@@ -846,9 +850,19 @@ void KStandardItemListWidget::hideEvent(QHideEvent* event)
     KItemListWidget::hideEvent(event);
 }
 
+bool KStandardItemListWidget::event(QEvent *event)
+{
+    if (event->type() == QEvent::WindowDeactivate || event->type() == QEvent::WindowActivate
+            || event->type() == QEvent::PaletteChange) {
+        m_dirtyContent = true;
+    }
+
+    return KItemListWidget::event(event);
+}
+
 void KStandardItemListWidget::slotCutItemsChanged()
 {
-    const KUrl itemUrl = data().value("url").value<KUrl>();
+    const QUrl itemUrl = data().value("url").toUrl();
     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
     if (m_isCut != isCut) {
         m_isCut = isCut;
@@ -947,14 +961,15 @@ void KStandardItemListWidget::updatePixmapCache()
             if (iconName.isEmpty()) {
                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
                 // use a generic icon as fallback
-                iconName = QLatin1String("unknown");
+                iconName = QStringLiteral("unknown");
             }
             const QStringList overlays = values["iconOverlays"].toStringList();
-            m_pixmap = pixmapForIcon(iconName, overlays, maxIconHeight);
-        } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
+            m_pixmap = pixmapForIcon(iconName, overlays, maxIconHeight, isSelected() && isActiveWindow() ? QIcon::Selected : QIcon::Normal);
+
+        } else if (m_pixmap.width() / m_pixmap.devicePixelRatio() != maxIconWidth || m_pixmap.height() / m_pixmap.devicePixelRatio() != maxIconHeight) {
             // A custom pixmap has been applied. Assure that the pixmap
             // is scaled to the maximum available size.
-            KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
+            KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight) * qApp->devicePixelRatio());
         }
 
         if (m_isCut) {
@@ -1350,9 +1365,10 @@ void KStandardItemListWidget::updateAdditionalInfoTextColor()
 
 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
 {
-    if (m_scaledPixmapSize != pixmap.size()) {
+    if (m_scaledPixmapSize != pixmap.size() / pixmap.devicePixelRatio()) {
         QPixmap scaledPixmap = pixmap;
-        KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
+        KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize * qApp->devicePixelRatio());
+        scaledPixmap.setDevicePixelRatio(qApp->devicePixelRatio());
         painter->drawPixmap(m_pixmapPos, scaledPixmap);
 
 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
@@ -1384,7 +1400,7 @@ void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
             if (m_isExpandable) {
                 option.state |= QStyle::State_Children;
             }
-            if (data()["isExpanded"].toBool()) {
+            if (data().value("isExpanded").toBool()) {
                 option.state |= QStyle::State_Open;
             }
             isItemSibling = false;
@@ -1432,13 +1448,15 @@ void KStandardItemListWidget::closeRoleEditor()
     m_roleEditor = 0;
 }
 
-QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, const QStringList& overlays, int size)
+QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, const QStringList& overlays, int size, QIcon::Mode mode)
 {
-    const QString key = "KStandardItemListWidget:" % name % ":" % overlays.join(":") % ":" % QString::number(size);
+    static const QIcon fallbackIcon = QIcon::fromTheme(QStringLiteral("unknown"));
+    size *= qApp->devicePixelRatio();
+    const QString key = "KStandardItemListWidget:" % name % ":" % overlays.join(QStringLiteral(":")) % ":" % QString::number(size) % ":" % QString::number(mode);
     QPixmap pixmap;
 
     if (!QPixmapCache::find(key, pixmap)) {
-        const QIcon icon = QIcon::fromTheme(name);
+        const QIcon icon = QIcon::fromTheme(name, fallbackIcon);
 
         int requestedSize;
         if (size <= KIconLoader::SizeSmall) {
@@ -1459,7 +1477,7 @@ QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, const QStrin
             requestedSize = size;
         }
 
-        pixmap = icon.pixmap(requestedSize, requestedSize);
+        pixmap = icon.pixmap(requestedSize / qApp->devicePixelRatio(), requestedSize / qApp->devicePixelRatio(), mode);
         if (requestedSize != size) {
             KPixmapModifier::scale(pixmap, QSize(size, size));
         }
@@ -1480,6 +1498,7 @@ QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, const QStrin
 
         QPixmapCache::insert(key, pixmap);
     }
+    pixmap.setDevicePixelRatio(qApp->devicePixelRatio());
 
     return pixmap;
 }