[KStandardItemListWidget] Update icon when palette changes

[dolphin.git] / src / views / dolphinfileitemlistwidget.cpp

diff --git a/src/views/dolphinfileitemlistwidget.cpp b/src/views/dolphinfileitemlistwidget.cpp
index dd391ac9af6d1ee2b3b93ef53a92a6abd42b84ed..e7398af2db7c302dd5841a060983ee4e84323b23 100644 (file)
--- a/src/views/dolphinfileitemlistwidget.cpp
+++ b/src/views/dolphinfileitemlistwidget.cpp
@@ -19,8 +19,15 @@
 
 #include "dolphinfileitemlistwidget.h"
 
-DolphinFileItemListWidget::DolphinFileItemListWidget(QGraphicsItem* parent) :
-    KFileItemListWidget(parent)
+#include <QIcon>
+#include <KIconLoader>
+#include <QColor>
+
+#include "dolphindebug.h"
+
+DolphinFileItemListWidget::DolphinFileItemListWidget(KItemListWidgetInformant* informant,
+                                                     QGraphicsItem* parent) :
+    KFileItemListWidget(informant, parent)
 {
 }
 
@@ -28,4 +35,93 @@ DolphinFileItemListWidget::~DolphinFileItemListWidget()
 {
 }
 
-#include "dolphinfileitemlistwidget.moc"
+void DolphinFileItemListWidget::refreshCache()
+{
+    QColor color;
+    const QHash<QByteArray, QVariant> values = data();
+    if (values.contains("version")) {
+        // The item is under version control. Apply the text color corresponding
+        // to its version state.
+        const KVersionControlPlugin::ItemVersion version = static_cast<KVersionControlPlugin::ItemVersion>(values.value("version").toInt());
+        const QColor textColor = styleOption().palette.text().color();
+        QColor tintColor = textColor;
+
+        // Using hardcoded colors is generally a bad idea. In this case the colors just act
+        // as tint colors and are mixed with the current set text color. The tint colors
+        // have been optimized for the base colors of the corresponding Oxygen emblems.
+        switch (version) {
+        case KVersionControlPlugin::UpdateRequiredVersion:          tintColor = Qt::yellow; break;
+        case KVersionControlPlugin::LocallyModifiedUnstagedVersion: tintColor = Qt::green; break;
+        case KVersionControlPlugin::LocallyModifiedVersion:         tintColor = Qt::green; break;
+        case KVersionControlPlugin::AddedVersion:                   tintColor = Qt::green; break;
+        case KVersionControlPlugin::RemovedVersion:                 tintColor = Qt::darkRed; break;
+        case KVersionControlPlugin::ConflictingVersion:             tintColor = Qt::red; break;
+        case KVersionControlPlugin::IgnoredVersion:                 tintColor = Qt::white; break;
+        case KVersionControlPlugin::MissingVersion:                 tintColor = Qt::red; break;
+        case KVersionControlPlugin::NormalVersion:
+        case KVersionControlPlugin::UnversionedVersion:
+        default:
+            break;
+        }
+
+        color = QColor((tintColor.red()   + textColor.red())   / 2,
+                       (tintColor.green() + textColor.green()) / 2,
+                       (tintColor.blue()  + textColor.blue())  / 2,
+                       (tintColor.alpha() + textColor.alpha()) / 2);
+
+        setOverlay(overlayForState(version, styleOption().iconSize));
+    } else if (!overlay().isNull()) {
+        setOverlay(QPixmap());
+    }
+
+    setTextColor(color);
+}
+
+QPixmap DolphinFileItemListWidget::overlayForState(KVersionControlPlugin::ItemVersion version, int size)
+{
+    int overlayHeight = KIconLoader::SizeSmall;
+    if (size >= KIconLoader::SizeEnormous) {
+        overlayHeight = KIconLoader::SizeMedium;
+    } else if (size >= KIconLoader::SizeLarge) {
+        overlayHeight = KIconLoader::SizeSmallMedium;
+    } else if (size >= KIconLoader::SizeMedium) {
+        overlayHeight = KIconLoader::SizeSmall;
+    } else {
+        overlayHeight = KIconLoader::SizeSmall / 2;
+    }
+
+    QString iconName;
+    switch (version) {
+    case KVersionControlPlugin::NormalVersion:
+        iconName = QStringLiteral("vcs-normal");
+        break;
+    case KVersionControlPlugin::UpdateRequiredVersion:
+        iconName = QStringLiteral("vcs-update-required");
+        break;
+    case KVersionControlPlugin::LocallyModifiedVersion:
+        iconName = QStringLiteral("vcs-locally-modified");
+        break;
+    case KVersionControlPlugin::LocallyModifiedUnstagedVersion:
+        iconName = QStringLiteral("vcs-locally-modified-unstaged");
+        break;
+    case KVersionControlPlugin::AddedVersion:
+        iconName = QStringLiteral("vcs-added");
+        break;
+    case KVersionControlPlugin::RemovedVersion:
+        iconName = QStringLiteral("vcs-removed");
+        break;
+    case KVersionControlPlugin::ConflictingVersion:
+        iconName = QStringLiteral("vcs-conflicting");
+        break;
+    case KVersionControlPlugin::UnversionedVersion:
+    case KVersionControlPlugin::IgnoredVersion:
+    case KVersionControlPlugin::MissingVersion:
+        break;
+    default:
+        Q_ASSERT(false);
+        break;
+    }
+
+    return QIcon::fromTheme(iconName).pixmap(QSize(overlayHeight, overlayHeight));
+}
+