X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/528262a6be4ab2ad7e17860a281ea80b90c1605b..d3839617:/src/kitemviews/kitemlistgroupheader.h

diff --git a/src/kitemviews/kitemlistgroupheader.h b/src/kitemviews/kitemlistgroupheader.h
index 8f556afc5..4ba469056 100644
--- a/src/kitemviews/kitemlistgroupheader.h
+++ b/src/kitemviews/kitemlistgroupheader.h
@@ -1,28 +1,14 @@
-/***************************************************************************
- *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
- ***************************************************************************/
+/*
+ * SPDX-FileCopyrightText: 2011 Peter Penz <peter.penz19@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 #ifndef KITEMLISTGROUPHEADER_H
 #define KITEMLISTGROUPHEADER_H
 
-#include <libdolphin_export.h>
-
-#include <kitemviews/kitemliststyleoption.h>
+#include "dolphin_export.h"
+#include "kitemviews/kitemliststyleoption.h"
 
 #include <QByteArray>
 #include <QGraphicsWidget>
@@ -30,13 +16,20 @@
 
 class KItemListView;
 
-class LIBDOLPHINPRIVATE_EXPORT KItemListGroupHeader : public QGraphicsWidget
+/**
+ * @brief Base class for group headers.
+ *
+ * Draws a default header background. Derived classes must reimplement
+ * the method paint() and draw the role within the given roleBounds() with
+ * the color roleColor().
+ */
+class DOLPHIN_EXPORT KItemListGroupHeader : public QGraphicsWidget
 {
     Q_OBJECT
 
 public:
-    KItemListGroupHeader(QGraphicsWidget* parent = 0);
-    virtual ~KItemListGroupHeader();
+    explicit KItemListGroupHeader(QGraphicsWidget* parent = nullptr);
+    ~KItemListGroupHeader() override;
 
     void setRole(const QByteArray& role);
     QByteArray role() const;
@@ -55,9 +48,15 @@ public:
     void setScrollOrientation(Qt::Orientation orientation);
     Qt::Orientation scrollOrientation() const;
 
-    virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0);
+    void setItemIndex(int index);
+    int itemIndex() const;
+
+    void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = nullptr) override;
 
 protected:
+    virtual void paintRole(QPainter* painter, const QRectF& roleBounds, const QColor& color) = 0;
+    virtual void paintSeparator(QPainter* painter, const QColor& color) = 0;
+
     /**
      * Is called after the role has been changed and allows the derived class
      * to react on this change.
@@ -82,12 +81,24 @@ protected:
      */
     virtual void scrollOrientationChanged(Qt::Orientation current, Qt::Orientation previous);
 
-    /** @reimp */
-    virtual void resizeEvent(QGraphicsSceneResizeEvent* event);
+    /**
+     * Is called after the item index has been changed and allows the derived class to react on
+     * this change.
+     */
+    virtual void itemIndexChanged(int current, int previous);
+
+    void resizeEvent(QGraphicsSceneResizeEvent* event) override;
+
+    virtual QPalette::ColorRole normalTextColorRole() const;
+    virtual QPalette::ColorRole normalBaseColorRole() const;
 
 private:
     void updateCache();
-    void deleteCache();
+
+    static QColor mixedColor(const QColor& c1, const QColor& c2, int c1Percent = 50);
+
+    QColor textColor() const;
+    QColor baseColor() const;
 
 private:
     bool m_dirtyCache;
@@ -95,10 +106,11 @@ private:
     QVariant m_data;
     KItemListStyleOption m_styleOption;
     Qt::Orientation m_scrollOrientation;
+    int m_itemIndex;
 
-    QPixmap* m_leftBorderCache;
-    QPixmap* m_rightBorderCache;
-    QColor m_outlineColor;
+    QColor m_separatorColor;
+    QColor m_roleColor;
+    QRectF m_roleBounds;
 };
 #endif