From: Soeren Apel <redacted>
Date: Mon, 28 Dec 2015 20:16:33 +0000 (+0100)
Subject: Implement "use coloured background" functionality
X-Git-Tag: pulseview-0.3.0~25
X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=commitdiff_plain;h=574c568d184240cd87be1b57fc00d60a4eac7566

Implement "use coloured background" functionality
---

diff --git a/pv/mainwindow.cpp b/pv/mainwindow.cpp
index 272dac23..3c5af937 100644
--- a/pv/mainwindow.cpp
+++ b/pv/mainwindow.cpp
@@ -476,12 +476,14 @@ void MainWindow::setup_ui()
 
 	action_view_coloured_bg_->setCheckable(true);
 	action_view_coloured_bg_->setChecked(true);
-	action_view_coloured_bg_->setShortcut(QKeySequence(Qt::Key_S));
+	action_view_coloured_bg_->setShortcut(QKeySequence(Qt::Key_B));
 	action_view_coloured_bg_->setObjectName(
 		QString::fromUtf8("actionViewColouredBg"));
 	action_view_coloured_bg_->setText(tr("Use &coloured backgrounds"));
 	menu_view->addAction(action_view_coloured_bg_);
 
+	view_->enable_coloured_bg(action_view_coloured_bg_->isChecked());
+
 	menu_view->addSeparator();
 
 	action_view_show_cursors_->setCheckable(true);
@@ -807,6 +809,7 @@ void MainWindow::on_actionViewStickyScrolling_triggered()
 
 void MainWindow::on_actionViewColouredBg_triggered()
 {
+	view_->enable_coloured_bg(action_view_coloured_bg_->isChecked());
 }
 
 void MainWindow::on_actionViewShowCursors_triggered()
diff --git a/pv/view/trace.cpp b/pv/view/trace.cpp
index 05054d49..3727afa2 100644
--- a/pv/view/trace.cpp
+++ b/pv/view/trace.cpp
@@ -43,6 +43,7 @@ const int Trace::LabelHitPadding = 2;
 
 Trace::Trace(QString name) :
 	name_(name),
+	coloured_bg_(true), // Default setting is set in MainWindow::setup_ui()
 	popup_(nullptr),
 	popup_form_(nullptr)
 {
@@ -71,6 +72,11 @@ void Trace::set_colour(QColor colour)
 	bgcolour_.setAlpha(20);
 }
 
+void Trace::set_coloured_bg(bool state)
+{
+	coloured_bg_ = state;
+}
+
 void Trace::paint_label(QPainter &p, const QRect &rect, bool hover)
 {
 	const int y = get_visual_y();
@@ -175,17 +181,19 @@ QRectF Trace::hit_box_rect(const ViewItemPaintParams &pp) const
 
 void Trace::paint_back(QPainter &p, const ViewItemPaintParams &pp)
 {
-	p.setPen(QPen(Qt::NoPen));
-	p.setBrush(bgcolour_);
+	if (coloured_bg_) {
+		p.setPen(QPen(Qt::NoPen));
+		p.setBrush(bgcolour_);
 
-	const std::pair<int, int> extents = v_extents();
+		const std::pair<int, int> extents = v_extents();
 
-	const int x = 0;
-	const int y = get_visual_y() + extents.first;
-	const int w = pp.right() - pp.left();
-	const int h = extents.second - extents.first;
+		const int x = 0;
+		const int y = get_visual_y() + extents.first;
+		const int w = pp.right() - pp.left();
+		const int h = extents.second - extents.first;
 
-	p.drawRect(x, y, w, h);
+		p.drawRect(x, y, w, h);
+	}
 }
 
 void Trace::paint_axis(QPainter &p, const ViewItemPaintParams &pp, int y)
diff --git a/pv/view/trace.hpp b/pv/view/trace.hpp
index dce9fcc9..74daf4a5 100644
--- a/pv/view/trace.hpp
+++ b/pv/view/trace.hpp
@@ -73,6 +73,11 @@ public:
 	 */
 	void set_colour(QColor colour);
 
+	/**
+	 * Enables or disables the coloured background for this trace.
+	 */
+	void set_coloured_bg(bool state);
+
 	/**
 	 * Computes the outline rectangle of the viewport hit-box.
 	 * @param rect the rectangle of the viewport area.
@@ -131,6 +136,7 @@ private Q_SLOTS:
 protected:
 	QString name_;
 	QColor colour_, bgcolour_;
+	bool coloured_bg_;
 
 private:
 	pv::widgets::Popup *popup_;
diff --git a/pv/view/view.cpp b/pv/view/view.cpp
index c6a6afd3..eeb8afd2 100644
--- a/pv/view/view.cpp
+++ b/pv/view/view.cpp
@@ -42,6 +42,7 @@
 
 #include <libsigrokcxx/libsigrokcxx.hpp>
 
+#include "analogsignal.hpp"
 #include "decodetrace.hpp"
 #include "header.hpp"
 #include "logicsignal.hpp"
@@ -437,6 +438,31 @@ void View::enable_sticky_scrolling(bool state)
 	sticky_scrolling_ = state;
 }
 
+void View::enable_coloured_bg(bool state)
+{
+	const vector<shared_ptr<TraceTreeItem>> items(
+		list_by_type<TraceTreeItem>());
+
+	for (shared_ptr<TraceTreeItem> i : items) {
+		// Can't cast to Trace because it's abstract, so we need to
+		// check for any derived classes individually
+
+		shared_ptr<AnalogSignal> a = dynamic_pointer_cast<AnalogSignal>(i);
+		if (a)
+			a->set_coloured_bg(state);
+
+		shared_ptr<LogicSignal> l = dynamic_pointer_cast<LogicSignal>(i);
+		if (l)
+			l->set_coloured_bg(state);
+
+		shared_ptr<DecodeTrace> d = dynamic_pointer_cast<DecodeTrace>(i);
+		if (d)
+			d->set_coloured_bg(state);
+	}
+
+	viewport_->update();
+}
+
 bool View::cursors_shown() const
 {
 	return show_cursors_;
diff --git a/pv/view/view.hpp b/pv/view/view.hpp
index 66d31a22..635273da 100644
--- a/pv/view/view.hpp
+++ b/pv/view/view.hpp
@@ -171,6 +171,12 @@ public:
 	 */
 	void enable_sticky_scrolling(bool state);
 
+	/**
+	 * Enables or disables coloured trace backgrounds. If they're not
+	 * coloured then they will use alternating colors.
+	 */
+	void enable_coloured_bg(bool state);
+
 	/**
 	 * Returns true if cursors are displayed. false otherwise.
 	 */