Refactor the markerline into a proper QGraphicsWidget

[quassel.git] / src / qtui / markerlineitem.cpp

diff --git a/src/qtui/markerlineitem.cpp b/src/qtui/markerlineitem.cpp
new file mode 100644 (file)
index 0000000..9782a79
--- /dev/null
+++ b/src/qtui/markerlineitem.cpp
@@ -0,0 +1,59 @@
+/***************************************************************************
+ *   Copyright (C) 2010 by the Quassel Project                             *
+ *   devel@quassel-irc.org                                                 *
+ *                                                                         *
+ *   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) version 3.                                           *
+ *                                                                         *
+ *   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.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QPainter>
+
+#include "markerlineitem.h"
+#include "qtui.h"
+
+MarkerLineItem::MarkerLineItem(qreal sceneWidth, QGraphicsItem *parent)
+  : QGraphicsObject(parent),
+    _boundingRect(0, 0, sceneWidth, 1)
+{
+  setZValue(8);
+  styleChanged(); // init brush and height
+  connect(QtUi::style(), SIGNAL(changed()), SLOT(styleChanged()));
+}
+
+void MarkerLineItem::styleChanged() {
+  _brush = QtUi::style()->brush(UiStyle::MarkerLine);
+
+  // if this is a solid color, we assume 1px because wesurely  don't surely don't want to fill the entire chatline.
+  // else, use the height of a single line of text to play around with gradients etc.
+  qreal height = 1.;
+  if(_brush.style() != Qt::SolidPattern)
+    height = QtUi::style()->fontMetrics(QtUiStyle::PlainMsg, 0)->lineSpacing();
+
+
+  prepareGeometryChange();
+  _boundingRect = QRectF(0, 0, scene()? scene()->width() : 100, height);
+}
+
+void MarkerLineItem::sceneRectChanged(const QRectF &rect) {
+  prepareGeometryChange();
+  _boundingRect.setWidth(rect.width());
+}
+
+void MarkerLineItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
+  Q_UNUSED(option);
+  Q_UNUSED(widget);
+
+  painter->fillRect(boundingRect(), _brush);
+}