Bring back the selection-markers

Still some finetuning is necessary, but lets first bring
back the missing features from Dolphin 1.x to 2.0 before starting
with this.

1 files changed, 91 insertions, 0 deletions

diff --git a/src/kitemviews/kitemlistselectiontoggle.cpp b/src/kitemviews/kitemlistselectiontoggle.cpp
new file mode 100644
index 000000000..43725e0de
--- /dev/null
+++ b/src/kitemviews/kitemlistselectiontoggle.cpp
@@ -0,0 +1,91 @@
+/***************************************************************************
+ *   Copyright (C) 2011 by Peter Penz <[email protected]>             *
+ *                                                                         *
+ *   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            *
+ ***************************************************************************/
+
+#include "kitemlistselectiontoggle_p.h"
+
+#include <KIconEffect>
+#include <KIconLoader>
+#include <QPainter>
+
+KItemListSelectionToggle::KItemListSelectionToggle(QGraphicsItem* parent) :
+    QGraphicsWidget(parent, 0),
+    m_checked(false),
+    m_hovered(false)
+{
+    setAcceptHoverEvents(true);
+}
+
+KItemListSelectionToggle::~KItemListSelectionToggle()
+{
+}
+
+void KItemListSelectionToggle::setChecked(bool checked)
+{
+    if (m_checked != checked) {
+        m_checked = checked;
+        m_pixmap = QPixmap();
+        update();
+    }
+}
+
+bool KItemListSelectionToggle::isChecked() const
+{
+    return m_checked;
+}
+
+void KItemListSelectionToggle::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+{
+    Q_UNUSED(option);
+    Q_UNUSED(widget);
+
+    if (m_pixmap.isNull()) {
+        updatePixmap();
+    }
+
+    const qreal x = (size().width()  - qreal(m_pixmap.width()))  / 2;
+    const qreal y = (size().height() - qreal(m_pixmap.height())) / 2;
+    painter->drawPixmap(x, y, m_pixmap);
+}
+
+void KItemListSelectionToggle::hoverEnterEvent(QGraphicsSceneHoverEvent* event)
+{
+    QGraphicsWidget::hoverEnterEvent(event);
+    m_hovered = true;
+    m_pixmap = QPixmap();
+}
+
+void KItemListSelectionToggle::hoverLeaveEvent(QGraphicsSceneHoverEvent* event)
+{
+    QGraphicsWidget::hoverLeaveEvent(event);
+    m_hovered = false;
+    m_pixmap = QPixmap();
+}
+
+void KItemListSelectionToggle::updatePixmap()
+{
+    const char* icon = m_checked ? "list-remove" : "list-add";
+    const int iconSize = qMin(size().width(), size().height());
+    m_pixmap = KIconLoader::global()->loadIcon(QLatin1String(icon), KIconLoader::NoGroup, iconSize);
+
+    if (m_hovered) {
+        KIconLoader::global()->iconEffect()->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
+    }
+}
+
+#include "kitemlistselectiontoggle_p.moc"