Add a plugin-preset list/selector GUI

This is currently only used for "Preset only" plugins, generic UI.
And also depends on plugin-presets having a description.

1 files changed, 164 insertions, 0 deletions

diff --git a/gtk2_ardour/plugin_presets_ui.cc b/gtk2_ardour/plugin_presets_ui.cc
new file mode 100644
index 0000000000..3c5155e30f
--- /dev/null
+++ b/gtk2_ardour/plugin_presets_ui.cc
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2018 Robin Gareus <robin@gareus.org>
+ *
+ * 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 "ardour/plugin.h"
+#include "gui_thread.h"
+
+#include "plugin_presets_ui.h"
+
+#include "pbd/i18n.h"
+
+using namespace ARDOUR;
+
+PluginPresetsUI::PluginPresetsUI (boost::shared_ptr<PluginInsert> insert)
+	: _insert (insert)
+	, _load_button (_("Load"))
+{
+	_plugin_preset_model = Gtk::TreeStore::create (_plugin_preset_columns);
+	_plugin_preset_display.set_model (_plugin_preset_model);
+	_plugin_preset_display.set_headers_visible (true);
+	_plugin_preset_display.get_selection ()->set_mode (Gtk::SELECTION_SINGLE);
+	_plugin_preset_display.get_selection ()->signal_changed ().connect (sigc::mem_fun (*this, &PluginPresetsUI::preset_selected));
+	_plugin_preset_display.set_sensitive (true);
+
+	Gtk::CellRendererText* label_render = Gtk::manage (new Gtk::CellRendererText());
+	Gtk::TreeView::Column* label_col = Gtk::manage (new Gtk::TreeView::Column (_("Preset"), *label_render));
+	label_col->add_attribute (label_render->property_markup(), _plugin_preset_columns.name);
+	_plugin_preset_display.append_column (*label_col);
+
+	_preset_desc.set_editable (false);
+	_preset_desc.set_can_focus (false);
+	_preset_desc.set_wrap_mode (Gtk::WRAP_WORD);
+	_preset_desc.set_size_request (400,200);
+	_preset_desc.set_name (X_("TextOnBackground"));
+	_preset_desc.set_border_width (6);
+
+	_preset_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+	_preset_scroller.add (_plugin_preset_display);
+
+	_load_button.set_name ("generic button");
+	_load_button.signal_clicked.connect (sigc::mem_fun (*this, &PluginPresetsUI::load_preset));
+	_load_button.set_sensitive (false);
+
+	attach (_preset_scroller, 0, 1, 0, 2, Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 2, 0);
+	attach (_preset_desc, 1, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::FILL, 2, 0);
+	attach (_load_button, 1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 0);
+
+	boost::shared_ptr<Plugin> plugin (_insert->plugin ());
+
+	plugin->PresetAdded.connect (_preset_connections, invalidator (*this), boost::bind (&PluginPresetsUI::update_preset_list, this), gui_context ());
+	plugin->PresetRemoved.connect (_preset_connections, invalidator (*this), boost::bind (&PluginPresetsUI::update_preset_list, this), gui_context ());
+	plugin->PresetLoaded.connect (_preset_connections, invalidator (*this), boost::bind (&PluginPresetsUI::update_preset_list, this), gui_context ());
+
+	update_preset_list ();
+}
+
+void
+PluginPresetsUI::update_preset_list ()
+{
+	boost::shared_ptr<Plugin> plugin (_insert->plugin ());
+
+	Plugin::PresetRecord const& p = plugin->last_preset ();
+	std::vector<Plugin::PresetRecord> presets = plugin->get_presets ();
+
+
+	std::string selected_uri;
+	if (_plugin_preset_display.get_selection ()->count_selected_rows () == 1) {
+		Gtk::TreeIter iter = _plugin_preset_display.get_selection ()->get_selected ();
+		ARDOUR::Plugin::PresetRecord const& ppr ((*iter)[_plugin_preset_columns.plugin_preset]);
+		selected_uri = ppr.uri;
+	}
+
+	_plugin_preset_model->clear ();
+
+	bool found_active = false;
+
+	for (std::vector<Plugin::PresetRecord>::const_iterator i = presets.begin (); i != presets.end (); ++i) {
+		Gtk::TreeModel::Row row = *(_plugin_preset_model->append ());
+		if (p.uri == i->uri) {
+			row[_plugin_preset_columns.name] = string_compose ("<span weight=\"bold\"  background=\"green\">%1</span>", i->label);
+			found_active = true;
+		} else {
+			row[_plugin_preset_columns.name] = i->label;
+		}
+		row[_plugin_preset_columns.description] = i->description;
+		row[_plugin_preset_columns.plugin_preset] = *i;
+	}
+
+	{
+		Gtk::TreeModel::Row row = *(_plugin_preset_model->prepend ());
+		if (found_active) {
+			row[_plugin_preset_columns.name] = _("(none)");
+		} else {
+			row[_plugin_preset_columns.name] = string_compose ("<span weight=\"bold\"  background=\"green\">%1</span>", _("(none)"));
+		}
+		row[_plugin_preset_columns.description] = "";
+		row[_plugin_preset_columns.plugin_preset] = Plugin::PresetRecord ();
+	}
+
+	Gtk::TreeModel::Children rows = _plugin_preset_model->children ();
+	for (Gtk::TreeModel::Children::iterator i = rows.begin (); i != rows.end (); ++i) {
+		ARDOUR::Plugin::PresetRecord const& ppr ((*i)[_plugin_preset_columns.plugin_preset]);
+		if (ppr.uri == selected_uri) {
+			_plugin_preset_display.get_selection ()->select (*i);
+			break;
+		}
+	}
+
+}
+
+void
+PluginPresetsUI::preset_selected ()
+{
+	if (_plugin_preset_display.get_selection ()->count_selected_rows () != 1) {
+		return;
+	}
+
+	Gtk::TreeIter iter = _plugin_preset_display.get_selection ()->get_selected ();
+	assert (iter);
+	ARDOUR::Plugin::PresetRecord const& ppr ((*iter)[_plugin_preset_columns.plugin_preset]);
+
+	std::string d;
+	if (!ppr.valid) {
+		d = "-";
+	} else if (ppr.user) {
+		d = _("(user preset)");
+	} else {
+		d = (*iter)[_plugin_preset_columns.description];
+	}
+	_preset_desc.get_buffer ()->set_text (Gtkmm2ext::markup_escape_text (d));
+
+	Plugin::PresetRecord const& p = _insert->plugin ()->last_preset ();
+	_load_button.set_sensitive (ppr.valid && !(p.valid && p.uri == ppr.uri));
+}
+
+void
+PluginPresetsUI::load_preset ()
+{
+	if (_plugin_preset_display.get_selection ()->count_selected_rows () != 1) {
+		return;
+	}
+
+	Gtk::TreeIter iter = _plugin_preset_display.get_selection ()->get_selected ();
+	ARDOUR::Plugin::PresetRecord const& ppr ((*iter)[_plugin_preset_columns.plugin_preset]);
+	if (ppr.valid) {
+		_insert->load_preset (ppr);
+	}
+}