Implemented Popup dialog widget

[pulseview.git] / pv / widgets / popup.h

diff --git a/pv/widgets/popup.h b/pv/widgets/popup.h
new file mode 100644 (file)
index 0000000..402fc6b
--- /dev/null
+++ b/pv/widgets/popup.h
@@ -0,0 +1,82 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2013 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#ifndef PULSEVIEW_PV_WIDGETS_POPUP_H
+#define PULSEVIEW_PV_WIDGETS_POPUP_H
+
+#include <QWidget>
+
+namespace pv {
+namespace widgets {
+
+class Popup : public QWidget
+{
+public:
+       enum Position
+       {
+               Right,
+               Top,
+               Left,
+               Bottom
+       };
+
+private:
+       static const unsigned int ArrowLength;
+       static const unsigned int ArrowOverlap;
+       static const unsigned int MarginWidth;
+
+public:
+       Popup(QWidget *parent);
+
+       const QPoint& point() const;
+       Position position() const;
+
+       void set_position(const QPoint point, Position pos);
+
+private:
+       QPolygon arrow_polygon() const;
+
+       QRegion arrow_region() const;
+
+       QRect bubble_rect() const;
+
+       QRegion bubble_region() const;
+
+       QRegion popup_region() const;
+
+       void reposition_widget();
+
+       void paintEvent(QPaintEvent*);
+
+       void resizeEvent(QResizeEvent*);
+
+       void showEvent(QShowEvent*);
+
+       void mouseReleaseEvent(QMouseEvent *e);
+
+private:
+       QPoint _point;
+       Position _pos;
+};
+
+} // namespace widgets
+} // namespace pv
+
+#endif // PULSEVIEW_PV_WIDGETS_POPUP_H