From e8e143bb3202a47a8a75f20f3c2d9fd1b6f251e1 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Tue, 21 Jul 2020 04:41:16 +0200
Subject: [PATCH] Add a horizontal separator widget

---
 libs/widgets/ardour_spacer.cc        |  6 ++++++
 libs/widgets/widgets/ardour_spacer.h | 26 ++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/libs/widgets/ardour_spacer.cc b/libs/widgets/ardour_spacer.cc
index 230c5f22cf..ad5406a05b 100644
--- a/libs/widgets/ardour_spacer.cc
+++ b/libs/widgets/ardour_spacer.cc
@@ -27,6 +27,12 @@ ArdourVSpacer::ArdourVSpacer (float r)
 {
 }
 
+ArdourHSpacer::ArdourHSpacer (float r)
+	: CairoWidget ()
+	, ratio (r)
+{
+}
+
 ArdourDropShadow::ArdourDropShadow (ShadowMode m, float a)
 	: CairoWidget ()
 	, alpha (a)
diff --git a/libs/widgets/widgets/ardour_spacer.h b/libs/widgets/widgets/ardour_spacer.h
index 4702de4b31..0e98c9f1c9 100644
--- a/libs/widgets/widgets/ardour_spacer.h
+++ b/libs/widgets/widgets/ardour_spacer.h
@@ -53,6 +53,32 @@ protected:
 	float ratio;
 };
 
+class LIBWIDGETS_API ArdourHSpacer : public CairoWidget
+{
+public:
+	ArdourHSpacer (float r = 0.75f);
+
+protected:
+	void render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_t*) {
+
+		float width = get_width();
+
+		float w = width * ratio;
+		float t = .5f * (width - w);
+		ctx->rectangle (t, 0, w, 1);
+		ctx->set_source_rgb (0, 0, 0);
+		ctx->fill ();
+	}
+
+	void on_size_request (Gtk::Requisition* req) {
+		req->width = 0;
+		req->height = 1;
+		CairoWidget::on_size_request (req);
+	}
+
+	float ratio;
+};
+
 class LIBWIDGETS_API ArdourDropShadow : public CairoWidget
 {
 public: