X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fviews%2Ftrace%2Fsignalscalehandle.hpp;fp=pv%2Fviews%2Ftrace%2Fsignalscalehandle.hpp;h=54eb59e85eba43d214ca772974f33c6c41f00998;hb=1573bf16ba50d1c023ad3a9ce596f0ab6eaeacff;hp=0000000000000000000000000000000000000000;hpb=4c7a19d3d7049bcc9fb3185ce2bc91333a7ca9e1;p=pulseview.git

diff --git a/pv/views/trace/signalscalehandle.hpp b/pv/views/trace/signalscalehandle.hpp
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+++ b/pv/views/trace/signalscalehandle.hpp
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+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2015 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNALSCALEHANDLE_HPP
+#define PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNALSCALEHANDLE_HPP
+
+#include "rowitem.hpp"
+
+namespace pv {
+namespace views {
+namespace trace {
+
+class Signal;
+
+/**
+ * A row item owned by a @c Signal that implements the v-scale adjustment grab
+ * handle.
+ */
+class SignalScaleHandle : public RowItem
+{
+	Q_OBJECT
+public:
+	/**
+	 * Constructor
+	 */
+	explicit SignalScaleHandle(Signal &owner);
+
+public:
+	/**
+	 * Returns true if the parent item is enabled.
+	 */
+	bool enabled() const;
+
+	/**
+	 * Selects or deselects the signal.
+	 */
+	void select(bool select = true);
+
+	/**
+	 * Sets this item into the un-dragged state.
+	 */
+	void drag_release();
+
+	/**
+	 * Drags the item to a delta relative to the drag point.
+	 * @param delta the offset from the drag point.
+	 */
+	void drag_by(const QPoint &delta);
+
+	/**
+	 * Get the drag point.
+	 * @param rect the rectangle of the widget area.
+	 */
+	QPoint point(const QRect &rect) const;
+
+	/**
+	 * Computes the outline rectangle of the viewport hit-box.
+	 * @param rect the rectangle of the viewport area.
+	 * @return Returns the rectangle of the hit-box.
+	 */
+	QRectF hit_box_rect(const ViewItemPaintParams &pp) const;
+
+	/**
+	 * Paints the foreground layer of the item with a QPainter
+	 * @param p the QPainter to paint into.
+	 * @param pp the painting parameters object to paint with.
+	 */
+	void paint_fore(QPainter &p, ViewItemPaintParams &pp);
+
+private:
+	Signal &owner_;
+};
+
+} // namespace trace
+} // namespace views
+} // namespace pv
+
+#endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_SIGNALSCALEHANDLE_HPP