X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/a06ee3399bece608790e419054f95807a017a020..0e15ff7f146550216940440e80e1f498ac6248f8:/src/kitemviews/kitemlistgroupheader.cpp

diff --git a/src/kitemviews/kitemlistgroupheader.cpp b/src/kitemviews/kitemlistgroupheader.cpp
index 687d6ea3a..f0ff52503 100644
--- a/src/kitemviews/kitemlistgroupheader.cpp
+++ b/src/kitemviews/kitemlistgroupheader.cpp
@@ -1,24 +1,10 @@
-/***************************************************************************
- *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
- *                                                                         *
- *   Based on the Itemviews NG project from Trolltech Labs:                *
- *   http://qt.gitorious.org/qt-labs/itemviews-ng                          *
- *                                                                         *
- *   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>
+ *
+ * Based on the Itemviews NG project from Trolltech Labs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 #include "kstandarditemlistgroupheader.h"
 
@@ -27,10 +13,9 @@
 #include <QGraphicsSceneResizeEvent>
 #include <QPainter>
 #include <QStyleOptionGraphicsItem>
-#include <QDebug>
 
 KItemListGroupHeader::KItemListGroupHeader(QGraphicsWidget* parent) :
-    QGraphicsWidget(parent, 0),
+    QGraphicsWidget(parent),
     m_dirtyCache(true),
     m_role(),
     m_data(),
@@ -79,6 +64,10 @@ QVariant KItemListGroupHeader::data() const
 
 void KItemListGroupHeader::setStyleOption(const KItemListStyleOption& option)
 {
+    if (m_styleOption == option) {
+        return;
+    }
+
     const KItemListStyleOption previous = m_styleOption;
     m_styleOption = option;
     m_dirtyCache = true;
@@ -124,9 +113,9 @@ Qt::Orientation KItemListGroupHeader::scrollOrientation() const
 
 void KItemListGroupHeader::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
 {
-    Q_UNUSED(painter);
-    Q_UNUSED(option);
-    Q_UNUSED(widget);
+    Q_UNUSED(painter)
+    Q_UNUSED(option)
+    Q_UNUSED(widget)
 
     if (m_dirtyCache) {
         updateCache();
@@ -138,32 +127,32 @@ void KItemListGroupHeader::paint(QPainter* painter, const QStyleOptionGraphicsIt
 
 void KItemListGroupHeader::roleChanged(const QByteArray& current, const QByteArray& previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListGroupHeader::dataChanged(const QVariant& current, const QVariant& previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListGroupHeader::styleOptionChanged(const KItemListStyleOption& current, const KItemListStyleOption& previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListGroupHeader::scrollOrientationChanged(Qt::Orientation current, Qt::Orientation previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListGroupHeader::itemIndexChanged(int current, int previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListGroupHeader::resizeEvent(QGraphicsSceneResizeEvent* event)
@@ -172,6 +161,7 @@ void KItemListGroupHeader::resizeEvent(QGraphicsSceneResizeEvent* event)
     if (event->oldSize().height() != event->newSize().height()) {
         m_dirtyCache = true;
     }
+    updateSize();
 }
 
 void KItemListGroupHeader::updateCache()
@@ -185,6 +175,13 @@ void KItemListGroupHeader::updateCache()
     m_separatorColor = mixedColor(c1, c2, 10);
     m_roleColor = mixedColor(c1, c2, 60);
 
+    updateSize();
+
+    m_dirtyCache = false;
+}
+
+void KItemListGroupHeader::updateSize()
+{
     const int padding = qMax(1, m_styleOption.padding);
     const int horizontalMargin = qMax(2, m_styleOption.horizontalMargin);
 
@@ -198,7 +195,7 @@ void KItemListGroupHeader::updateCache()
                           size().width() - 2 * padding - horizontalMargin,
                           roleHeight);
 
-    m_dirtyCache = false;
+    update();
 }
 
 QColor KItemListGroupHeader::mixedColor(const QColor& c1, const QColor& c2, int c1Percent)