From: Soeren Apel <redacted>
Date: Thu, 2 Aug 2018 06:56:51 +0000 (+0200)
Subject: Allow for a context menu in the view area
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=d9b55cc8ab01e83b392762ed1fa400fdafafb60b;p=pulseview.git

Allow for a context menu in the view area
---

diff --git a/pv/views/trace/trace.cpp b/pv/views/trace/trace.cpp
index 7d850112..3b79dcd9 100644
--- a/pv/views/trace/trace.cpp
+++ b/pv/views/trace/trace.cpp
@@ -187,6 +187,14 @@ QRectF Trace::label_rect(const QRectF &rect) const
 		label_size.height());
 }
 
+QRectF Trace::hit_box_rect(const ViewItemPaintParams &pp) const
+{
+	pair<int, int> extents = v_extents();
+	const int top = pp.top() + get_visual_y() + extents.first;
+	const int height = extents.second - extents.first;
+	return QRectF(pp.left(), top, pp.width(), height);
+}
+
 void Trace::set_current_segment(const int segment)
 {
 	current_segment_ = segment;
diff --git a/pv/views/trace/trace.hpp b/pv/views/trace/trace.hpp
index d6d53045..bc97736c 100644
--- a/pv/views/trace/trace.hpp
+++ b/pv/views/trace/trace.hpp
@@ -128,6 +128,14 @@ public:
 	 */
 	QRectF label_rect(const QRectF &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.
+	 * @remarks The default implementation returns an empty hit-box.
+	 */
+	virtual QRectF hit_box_rect(const ViewItemPaintParams &pp) const;
+
 	void set_current_segment(const int segment);
 
 	int get_current_segment() const;
diff --git a/pv/views/trace/view.cpp b/pv/views/trace/view.cpp
index 024e3bf4..99e75bfd 100644
--- a/pv/views/trace/view.cpp
+++ b/pv/views/trace/view.cpp
@@ -38,6 +38,7 @@
 #include <QApplication>
 #include <QEvent>
 #include <QFontMetrics>
+#include <QMenu>
 #include <QMouseEvent>
 #include <QScrollBar>
 #include <QVBoxLayout>
@@ -1251,6 +1252,17 @@ bool View::eventFilter(QObject *object, QEvent *event)
 	return QObject::eventFilter(object, event);
 }
 
+void View::contextMenuEvent(QContextMenuEvent *event)
+{
+	const shared_ptr<ViewItem> r = viewport_->get_mouse_over_item(event->pos());
+	if (!r)
+		return;
+
+	QMenu *menu = r->create_view_context_menu(this);
+	if (menu)
+		menu->exec(event->globalPos());
+}
+
 void View::resizeEvent(QResizeEvent* event)
 {
 	// Only adjust the top margin if we shrunk vertically
diff --git a/pv/views/trace/view.hpp b/pv/views/trace/view.hpp
index 4f364404..1cff6ab7 100644
--- a/pv/views/trace/view.hpp
+++ b/pv/views/trace/view.hpp
@@ -394,6 +394,8 @@ private:
 
 	bool eventFilter(QObject *object, QEvent *event);
 
+	virtual void contextMenuEvent(QContextMenuEvent *event);
+
 	void resizeEvent(QResizeEvent *event);
 
 	void update_hover_point();
diff --git a/pv/views/trace/viewitem.cpp b/pv/views/trace/viewitem.cpp
index 2141687c..7c1fae73 100644
--- a/pv/views/trace/viewitem.cpp
+++ b/pv/views/trace/viewitem.cpp
@@ -88,6 +88,12 @@ QMenu* ViewItem::create_context_menu(QWidget *parent)
 	return new QMenu(parent);
 }
 
+QMenu* ViewItem::create_view_context_menu(QWidget *parent)
+{
+	(void)parent;
+	return nullptr;
+}
+
 widgets::Popup* ViewItem::create_popup(QWidget *parent)
 {
 	(void)parent;
diff --git a/pv/views/trace/viewitem.hpp b/pv/views/trace/viewitem.hpp
index f3e0f9b6..91242f57 100644
--- a/pv/views/trace/viewitem.hpp
+++ b/pv/views/trace/viewitem.hpp
@@ -157,6 +157,8 @@ public:
 public:
 	virtual QMenu* create_context_menu(QWidget *parent);
 
+	virtual QMenu* create_view_context_menu(QWidget *parent);
+
 	virtual pv::widgets::Popup* create_popup(QWidget *parent);
 
 	virtual void delete_pressed();
diff --git a/pv/views/trace/viewport.hpp b/pv/views/trace/viewport.hpp
index ab67f69f..a49084b4 100644
--- a/pv/views/trace/viewport.hpp
+++ b/pv/views/trace/viewport.hpp
@@ -48,14 +48,6 @@ class Viewport : public ViewWidget
 public:
 	explicit Viewport(View &parent);
 
-private:
-	/**
-	 * Indicates when a view item is being hovered over.
-	 * @param item The item that is being hovered over, or @c nullptr
-	 * if no view item is being hovered over.
-	 */
-	void item_hover(const shared_ptr<ViewItem> &item);
-
 	/**
 	 * Gets the first view item which has a hit-box that contains @c pt .
 	 * @param pt the point to search with.
@@ -64,6 +56,14 @@ private:
 	 */
 	shared_ptr<ViewItem> get_mouse_over_item(const QPoint &pt);
 
+private:
+	/**
+	 * Indicates when a view item is being hovered over.
+	 * @param item The item that is being hovered over, or @c nullptr
+	 * if no view item is being hovered over.
+	 */
+	void item_hover(const shared_ptr<ViewItem> &item);
+
 	/**
 	 * Sets this item into the dragged state.
 	 */