get started with Pin Manager - currently display-only.

1 files changed, 227 insertions, 0 deletions

diff --git a/gtk2_ardour/plugin_pin_dialog.cc b/gtk2_ardour/plugin_pin_dialog.cc
new file mode 100644
index 0000000000..1e7259ba5c
--- /dev/null
+++ b/gtk2_ardour/plugin_pin_dialog.cc
@@ -0,0 +1,227 @@
+/*
+ * Copyright (C) 2016 Robin Gareus <robin@gareus.org>
+ * Copyright (C) 2011 Paul Davis
+ *
+ * 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 Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "gtkmm2ext/utils.h"
+
+#include "plugin_pin_dialog.h"
+#include "gui_thread.h"
+#include "ui_config.h"
+
+#include "i18n.h"
+
+using namespace ARDOUR;
+using namespace PBD;
+using namespace std;
+using namespace Gtk;
+using namespace Gtkmm2ext;
+
+
+PluginPinDialog::PluginPinDialog (boost::shared_ptr<ARDOUR::PluginInsert> pi)
+	: ArdourWindow (string_compose (_("Pin Configuration: %1"), pi->name ()))
+	, _pi (pi)
+{
+	assert (pi->owner ()); // Route
+
+	_pi->PluginIoReConfigure.connect (
+			_plugin_connections, invalidator (*this), boost::bind (&PluginPinDialog::plugin_reconfigured, this), gui_context()
+			);
+
+	_pi->PluginMapChanged.connect (
+			_plugin_connections, invalidator (*this), boost::bind (&PluginPinDialog::plugin_reconfigured, this), gui_context()
+			);
+
+	darea.signal_expose_event().connect (sigc::mem_fun (*this, &PluginPinDialog::darea_expose_event));
+
+	// TODO min. width depending on # of pins.
+	darea.set_size_request(600, 200);
+
+	VBox* vbox = manage (new VBox);
+	vbox->pack_start (darea, true, true);
+	add (*vbox);
+}
+
+PluginPinDialog::~PluginPinDialog()
+{
+}
+
+void
+PluginPinDialog::plugin_reconfigured ()
+{
+	darea.queue_draw ();
+}
+
+void
+PluginPinDialog::draw_io_pins (cairo_t* cr, double y0, double width, uint32_t n_total, uint32_t n_midi, bool input)
+{
+	double dir = input ? 1. : -1.;
+
+	for (uint32_t i = 0; i < n_total; ++i) {
+		double x0 = rint ((i + 1) * width / (1. + n_total)) - .5;
+		cairo_move_to (cr, x0, y0);
+		cairo_rel_line_to (cr, -5.,  -5. * dir);
+		cairo_rel_line_to (cr,  0., -25. * dir);
+		cairo_rel_line_to (cr, 10.,   0.);
+		cairo_rel_line_to (cr,  0.,  25. * dir);
+		cairo_close_path  (cr);
+
+		cairo_set_source_rgb (cr, 0, 0, 0);
+		cairo_stroke_preserve (cr);
+
+		if (i < n_midi) {
+			cairo_set_source_rgb (cr, 1, 0, 0);
+		} else {
+			cairo_set_source_rgb (cr, 0, 1, 0);
+		}
+		cairo_fill (cr);
+	}
+}
+
+double
+PluginPinDialog::pin_x_pos (uint32_t i, double x0, double width, uint32_t n_total, uint32_t n_midi, bool midi)
+{
+	if (!midi) { i += n_midi; }
+	return rint (x0 + (i + 1) * width / (1. + n_total)) - .5;
+}
+
+void
+PluginPinDialog::draw_plugin_pins (cairo_t* cr, double x0, double y0, double width, uint32_t n_total, uint32_t n_midi, bool input)
+{
+	// see also ProcessorEntry::PortIcon::on_expose_event
+	const double dxy = rint (max (6., 8. * UIConfiguration::instance().get_ui_scale()));
+
+	for (uint32_t i = 0; i < n_total; ++i) {
+		double x = rint (x0 + (i + 1) * width / (1. + n_total)) - .5;
+		cairo_rectangle (cr, x - dxy * .5, input ? y0 - dxy : y0, 1 + dxy, dxy);
+
+		if (i < n_midi) {
+			cairo_set_source_rgb (cr, 1, 0, 0);
+		} else {
+			cairo_set_source_rgb (cr, 0, 1, 0);
+		}
+
+		cairo_fill(cr);
+	}
+}
+
+void
+PluginPinDialog::draw_connection (cairo_t* cr, double x0, double x1, double y0, double y1, bool midi)
+{
+	cairo_move_to (cr, x0, y0);
+	cairo_curve_to (cr, x0, y0 + 10, x1, y1 - 10, x1, y1);
+	cairo_set_line_width  (cr, 3.0);
+	cairo_set_source_rgb (cr, 1, 0, 0);
+	if (midi) {
+		cairo_set_source_rgb (cr, 1, 0, 0);
+	} else {
+		cairo_set_source_rgb (cr, 0, 1, 0);
+	}
+	cairo_stroke (cr);
+}
+
+bool
+PluginPinDialog::darea_expose_event (GdkEventExpose* ev)
+{
+	Gtk::Allocation a = darea.get_allocation();
+	double const width = a.get_width();
+	double const height = a.get_height();
+
+	cairo_t* cr = gdk_cairo_create (darea.get_window()->gobj());
+
+	cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
+	cairo_clip (cr);
+
+	Gdk::Color const bg = get_style()->get_bg (STATE_NORMAL);
+	cairo_set_source_rgb (cr, bg.get_red_p (), bg.get_green_p (), bg.get_blue_p ());
+	cairo_rectangle (cr, 0, 0, width, height);
+	cairo_fill (cr);
+
+	ChanCount in, out; // actual configured i/o
+	_pi->configured_io (in, out);
+
+	ChanCount sinks = _pi->natural_input_streams ();
+	ChanCount sources = _pi->natural_output_streams ();
+	uint32_t plugins = _pi->get_count ();
+
+	/* layout sizes */
+	// i/o pins
+	double y_in = 40;
+	double y_out = height - 40;
+
+	// plugin box(es)
+	double yc   = rint (height * .5);
+	double bxh2 = 18;
+	double bxw  = rint ((width * .9) / ((plugins) + .2 * (plugins - 1)));
+	double bxw2 = rint (bxw * .5);
+
+	// i/o pins
+	const uint32_t pc_in = in.n_total();
+	const uint32_t pc_in_midi = in.n_midi();
+	const uint32_t pc_out = out.n_total();
+	const uint32_t pc_out_midi = out.n_midi();
+
+	cairo_set_line_width  (cr, 1.0);
+	draw_io_pins (cr, y_in, width, pc_in, pc_in_midi, true);
+	draw_io_pins (cr, y_out, width, pc_out, pc_out_midi, false);
+
+	// draw midi-bypass (behind)
+	if (sources.n_midi() == 0 && pc_in_midi > 0 && pc_out_midi > 0) {
+		double x0 = rint (width / (1. + pc_in)) - .5;
+		double x1 = rint (width / (1. + pc_out)) - .5;
+		draw_connection (cr, x0, x1, y_in, y_out, true);
+	}
+
+	for (uint32_t i = 0; i < plugins; ++i) {
+		double x0 = rint ((i + .5) * width / (double)(plugins)) - .5;
+
+		draw_plugin_pins (cr, x0 - bxw2, yc - bxh2, bxw, sinks.n_total (), sinks.n_midi (), true);
+		draw_plugin_pins (cr, x0 - bxw2, yc + bxh2, bxw, sources.n_total (), sources.n_midi (), false);
+
+		cairo_set_source_rgb (cr, .3, .3, .3);
+		rounded_rectangle (cr, x0 - bxw2, yc - bxh2, bxw, 2 * bxh2, 7);
+		cairo_fill (cr);
+
+		const ChanMapping::Mappings in_map =  _pi->input_map (i).mappings();
+		const ChanMapping::Mappings out_map =  _pi->output_map (i).mappings();
+
+		for (ChanMapping::Mappings::const_iterator t = in_map.begin (); t != in_map.end (); ++t) {
+			bool is_midi = t->first == DataType::MIDI;
+			for (ChanMapping::TypeMapping::const_iterator c = (*t).second.begin (); c != (*t).second.end () ; ++c) {
+				uint32_t pn = (*c).first; // pin
+				uint32_t pb = (*c).second;
+				double c_x0 = pin_x_pos (pb, 0, width, pc_in, pc_in_midi, is_midi);
+				double c_x1 = pin_x_pos (pn, x0 - bxw2, bxw, sinks.n_total (), sinks.n_midi (), is_midi);
+				draw_connection (cr, c_x0, c_x1, y_in, yc - bxh2, is_midi);
+			}
+		}
+
+		for (ChanMapping::Mappings::const_iterator t = out_map.begin (); t != out_map.end (); ++t) {
+			bool is_midi = t->first == DataType::MIDI;
+			for (ChanMapping::TypeMapping::const_iterator c = (*t).second.begin (); c != (*t).second.end () ; ++c) {
+				uint32_t pn = (*c).first;  // pin
+				uint32_t pb = (*c).second;
+				double c_x0 = pin_x_pos (pn, x0 - bxw2, bxw, sources.n_total (), sources.n_midi (), is_midi);
+				double c_x1 = pin_x_pos (pb, 0, width, pc_out, pc_out_midi, is_midi);
+				draw_connection (cr, c_x0, c_x1, yc + bxh2, y_out, is_midi);
+			}
+		}
+	}
+
+	cairo_destroy (cr);
+	return true;
+}