git-svn-id: svn://localhost/ardour2/branches/3.0@5036 d708f5d6-7413-0410-9779-e7cbd77b26cf
172 lines
4.4 KiB
C++
172 lines
4.4 KiB
C++
/*
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Copyright (C) 2008 Paul Davis
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Author: Dave Robillard
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "ardour/processor.h"
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#include "ardour/lv2_plugin.h"
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#include "ardour_ui.h"
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#include "lv2_plugin_ui.h"
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using namespace Gtk;
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using namespace ARDOUR;
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using namespace PBD;
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void
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LV2PluginUI::lv2_ui_write(
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LV2UI_Controller controller,
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uint32_t port_index,
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uint32_t buffer_size,
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uint32_t format,
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const void* buffer)
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{
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LV2PluginUI* me = (LV2PluginUI*)controller;
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if (*(float*)buffer != me->_values[port_index])
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me->_lv2->set_parameter(port_index, *(float*)buffer);
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}
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void
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LV2PluginUI::parameter_changed (uint32_t port_index, float val)
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{
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if (val != _values[port_index]) {
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parameter_update(port_index, val);
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}
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}
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void
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LV2PluginUI::parameter_update (uint32_t port_index, float val)
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{
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const LV2UI_Descriptor* ui_desc = slv2_ui_instance_get_descriptor(_inst);
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LV2UI_Handle ui_handle = slv2_ui_instance_get_handle(_inst);
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if (ui_desc->port_event)
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ui_desc->port_event(ui_handle, port_index, 4, 0, &val);
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_values[port_index] = val;
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}
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bool
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LV2PluginUI::start_updating(GdkEventAny* event)
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{
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if (!_output_ports.empty()) {
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_screen_update_connection.disconnect();
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_screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
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(mem_fun(*this, &LV2PluginUI::output_update));
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}
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return false;
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}
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bool
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LV2PluginUI::stop_updating(GdkEventAny* event)
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{
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if (!_output_ports.empty()) {
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_screen_update_connection.disconnect();
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}
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return false;
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}
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void
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LV2PluginUI::output_update()
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{
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/* FIXME only works with control output ports (which is all we support now anyway) */
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uint32_t nports = _output_ports.size();
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for (uint32_t i = 0; i < nports; ++i) {
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uint32_t index = _output_ports[i];
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parameter_changed(index, _lv2->get_parameter(index));
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}
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}
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LV2PluginUI::LV2PluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<LV2Plugin> lv2p)
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: PlugUIBase (pi)
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, _lv2(lv2p)
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{
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_inst = slv2_ui_instantiate(
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_lv2->slv2_plugin(), _lv2->slv2_ui(), LV2PluginUI::lv2_ui_write, this,
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_lv2->features());
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uint32_t num_ports = slv2_plugin_get_num_ports(lv2p->slv2_plugin());
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for (uint32_t i = 0; i < num_ports; ++i) {
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if (lv2p->parameter_is_output(i) && lv2p->parameter_is_control(i) && is_update_wanted(i)) {
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_output_ports.push_back(i);
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}
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}
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GtkWidget* c_widget = (GtkWidget*)slv2_ui_instance_get_widget(_inst);
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_gui_widget = Glib::wrap(c_widget);
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_gui_widget->show_all();
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pack_start(*_gui_widget, true, true);
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_values = new float[num_ports];
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for (uint32_t i = 0; i < num_ports; ++i) {
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bool ok;
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uint32_t port = lv2p->nth_parameter(i, ok);
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if (ok) {
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_values[port] = lv2p->get_parameter(port);
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if (lv2p->parameter_is_control(port) && lv2p->parameter_is_input(port)) {
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parameter_update(port, _values[port]);
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}
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}
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}
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_lv2->ParameterChanged.connect(mem_fun(*this, &LV2PluginUI::parameter_changed));
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}
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LV2PluginUI::~LV2PluginUI ()
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{
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delete[] _values;
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// plugin destructor destroys the GUI
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}
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int
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LV2PluginUI::get_preferred_height ()
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{
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Gtk::Requisition r = size_request();
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return r.height;
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}
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int
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LV2PluginUI::get_preferred_width ()
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{
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Gtk::Requisition r = size_request();
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return r.width;
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}
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int
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LV2PluginUI::package (Gtk::Window& win)
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{
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/* forward configure events to plugin window */
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win.signal_configure_event().connect (mem_fun (*this, &LV2PluginUI::configure_handler));
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win.signal_map_event().connect (mem_fun (*this, &LV2PluginUI::start_updating));
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win.signal_unmap_event().connect (mem_fun (*this, &LV2PluginUI::stop_updating));
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return 0;
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}
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bool
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LV2PluginUI::configure_handler (GdkEventConfigure* ev)
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{
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cout << "CONFIGURE" << endl;
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return false;
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}
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bool
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LV2PluginUI::is_update_wanted(uint32_t index)
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{
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/* FIXME this should check the port notification properties, which nobody sets now anyway :) */
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return true;
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}
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