620 lines
15 KiB
C++
620 lines
15 KiB
C++
/* -*- Mode: C ; c-basic-offset: 2 -*- */
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/*
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* LADI Session Handler (ladish)
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*
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* Copyright (C) 2008, 2009, 2010, 2011 Nedko Arnaudov <nedko@arnaudov.name>
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* Copyright (C) 2007 Dave Robillard <http://drobilla.net>
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*
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**************************************************************************
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* This file contains implements the canvas functionality through flowcanvas
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**************************************************************************
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*
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* LADI Session Handler 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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*
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* LADI Session Handler 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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*
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* You should have received a copy of the GNU General Public License
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* along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
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* or write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <flowcanvas/Canvas.hpp>
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#include <flowcanvas/Port.hpp>
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#include <flowcanvas/Module.hpp>
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#include "canvas.h"
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class canvas_cls: public FlowCanvas::Canvas
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{
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public:
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canvas_cls(
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double width,
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double height,
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void * context,
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void (* connect_request)(void * port1_context, void * port2_context),
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void (* disconnect_request)(void * port1_context, void * port2_context),
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void (* module_location_changed)(void * module_context, double x, double y),
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void (* fill_canvas_menu)(GtkMenu * menu, void * canvas_context),
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void (* fill_module_menu)(GtkMenu * menu, void * module_context),
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void (* fill_port_menu)(GtkMenu * menu, void * port_context))
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: FlowCanvas::Canvas(width, height)
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, m_context(context)
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, m_connect_request(connect_request)
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, m_disconnect_request(disconnect_request)
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, m_module_location_changed(module_location_changed)
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, m_fill_canvas_menu(fill_canvas_menu)
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, m_fill_module_menu(fill_module_menu)
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, m_fill_port_menu(fill_port_menu)
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{}
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virtual ~canvas_cls() {}
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virtual void on_realize()
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{
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log_info("canvas_cls::on_realize");
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FlowCanvas::Canvas::on_realize();
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scroll_to_center();
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}
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virtual void on_size_allocate(Gtk::Allocation& allocation)
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{
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//log_info("canvas_cls::on_size_allocate");
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FlowCanvas::Canvas::on_size_allocate(allocation);
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if (is_realized())
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{
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//log_info("... realized");
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scroll_to_center();
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}
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}
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virtual bool canvas_event(GdkEvent * event);
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virtual void connect(boost::shared_ptr<FlowCanvas::Connectable> port1, boost::shared_ptr<FlowCanvas::Connectable> port2);
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virtual void disconnect(boost::shared_ptr<FlowCanvas::Connectable> port1, boost::shared_ptr<FlowCanvas::Connectable> port2);
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void * m_context;
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void (* m_connect_request)(void * port1_context, void * port2_context);
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void (* m_disconnect_request)(void * port1_context, void * port2_context);
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void (* m_module_location_changed)(void * module_context, double x, double y);
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void (* m_fill_canvas_menu)(GtkMenu * menu, void * canvas_context);
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void (* m_fill_module_menu)(GtkMenu * menu, void * module_context);
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void (* m_fill_port_menu)(GtkMenu * menu, void * port_context);
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};
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class module_cls: public FlowCanvas::Module
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{
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public:
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module_cls(
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boost::shared_ptr<FlowCanvas::Canvas> canvas,
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const std::string& name,
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double x,
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double y,
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bool show_title,
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bool show_port_labels,
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void * module_context)
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: FlowCanvas::Module(canvas, name, x, y, show_title, show_port_labels)
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, m_context(module_context)
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{}
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virtual ~module_cls() {}
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virtual void store_location()
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{
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boost::dynamic_pointer_cast<canvas_cls>(canvas().lock())->m_module_location_changed(m_context, property_x(), property_y());
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}
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void create_menu()
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{
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_menu = new Gtk::Menu();
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_menu->signal_selection_done().connect(sigc::mem_fun(this, &module_cls::on_menu_hide));
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_menu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Disconnect All"), sigc::mem_fun(this, &module_cls::menu_disconnect_all)));
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void (* fill_module_menu)(GtkMenu * menu, void * module_context) = boost::dynamic_pointer_cast<canvas_cls>(canvas().lock())->m_fill_module_menu;
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if (fill_module_menu != NULL)
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{
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fill_module_menu(_menu->gobj(), m_context);
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}
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_menu->show_all();
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}
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void menu_disconnect_all()
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{
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for (FlowCanvas::PortVector::iterator p = _ports.begin(); p != _ports.end(); p++)
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{
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(*p)->disconnect_all();
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}
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}
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void on_menu_hide()
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{
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delete _menu;
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_menu = NULL;
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}
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void * m_context;
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};
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class port_cls: public FlowCanvas::Port
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{
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public:
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port_cls(
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boost::shared_ptr<FlowCanvas::Module> module,
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const std::string& name,
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bool is_input,
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uint32_t color,
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void * port_context)
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: FlowCanvas::Port(module, name, is_input, color)
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, m_context(port_context)
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{}
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virtual ~port_cls() {}
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void popup_menu(guint button, guint32 activate_time)
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{
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create_menu();
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if (_menu)
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_menu->popup(button, activate_time);
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}
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virtual void create_menu()
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{
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void (* fill_port_menu)(GtkMenu * menu, void * port_context);
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/* Cannot call FlowCanvas::Port::create_menu() because on_menu_hide() is not virtual */
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_menu = new Gtk::Menu();
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_menu->items().push_back(Gtk::Menu_Helpers::MenuElem(_("Disconnect All"), sigc::mem_fun(this, &Port::disconnect_all)));
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_menu->signal_selection_done().connect(sigc::mem_fun(this, &port_cls::on_menu_hide));
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fill_port_menu = boost::dynamic_pointer_cast<canvas_cls>(module().lock()->canvas().lock())->m_fill_port_menu;
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if (fill_port_menu != NULL)
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{
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fill_port_menu(_menu->gobj(), m_context);
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}
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_menu->show_all();
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}
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void on_menu_hide()
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{
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delete _menu;
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_menu = NULL;
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}
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void * m_context;
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};
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bool
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canvas_init(
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void)
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{
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Gnome::Canvas::init();
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return true;
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}
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bool
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canvas_create(
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double width,
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double height,
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void * canvas_context,
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void (* connect_request)(void * port1_context, void * port2_context),
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void (* disconnect_request)(void * port1_context, void * port2_context),
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void (* module_location_changed)(void * module_context, double x, double y),
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void (* fill_canvas_menu)(GtkMenu * menu, void * canvas_context),
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void (* fill_module_menu)(GtkMenu * menu, void * module_context),
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void (* fill_port_menu)(GtkMenu * menu, void * port_context),
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canvas_handle * canvas_handle_ptr)
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{
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boost::shared_ptr<canvas_cls> * canvas;
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canvas = new boost::shared_ptr<canvas_cls>(new canvas_cls(width,
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height,
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canvas_context,
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connect_request,
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disconnect_request,
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module_location_changed,
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fill_canvas_menu,
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fill_module_menu,
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fill_port_menu));
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*canvas_handle_ptr = (canvas_handle)canvas;
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return true;
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}
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#define canvas_ptr ((boost::shared_ptr<canvas_cls> *)canvas)
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GtkWidget *
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canvas_get_widget(
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canvas_handle canvas)
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{
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return ((Gtk::Widget *)canvas_ptr->get())->gobj();
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}
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void
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canvas_destroy(
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canvas_handle canvas)
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{
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delete canvas_ptr;
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}
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void
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canvas_clear(
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canvas_handle canvas)
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{
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FlowCanvas::ItemList modules = canvas_ptr->get()->items(); // copy
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for (FlowCanvas::ItemList::iterator m = modules.begin(); m != modules.end(); ++m)
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{
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boost::shared_ptr<FlowCanvas::Module> module = boost::dynamic_pointer_cast<FlowCanvas::Module>(*m);
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if (!module)
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continue;
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FlowCanvas::PortVector ports = module->ports(); // copy
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for (FlowCanvas::PortVector::iterator p = ports.begin(); p != ports.end(); ++p)
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{
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boost::shared_ptr<FlowCanvas::Port> port = boost::dynamic_pointer_cast<FlowCanvas::Port>(*p);
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ASSERT(port != NULL);
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module->remove_port(port);
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port->hide();
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}
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ASSERT(module->ports().empty());
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canvas_ptr->get()->remove_item(module);
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}
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}
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void
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canvas_get_size(
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canvas_handle canvas,
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double * width_ptr,
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double * height_ptr)
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{
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*width_ptr = canvas_ptr->get()->width();
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*height_ptr = canvas_ptr->get()->height();
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}
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void
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canvas_scroll_to_center(
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canvas_handle canvas)
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{
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if (canvas_ptr->get()->is_realized())
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{
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//log_info("realized");
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canvas_ptr->get()->scroll_to_center();
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}
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else
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{
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//log_info("NOT realized");
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}
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}
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double
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canvas_get_zoom(
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canvas_handle canvas)
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{
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return canvas_ptr->get()->get_zoom();
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}
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void
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canvas_set_zoom(
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canvas_handle canvas,
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double pix_per_unit)
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{
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canvas_ptr->get()->set_zoom(pix_per_unit);
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}
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void
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canvas_set_zoom_fit(
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canvas_handle canvas)
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{
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canvas_ptr->get()->zoom_full();
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}
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void
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canvas_arrange(
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canvas_handle canvas)
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{
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Glib::RefPtr<Gdk::Window> win = canvas_ptr->get()->get_window();
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if (win)
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{
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canvas_ptr->get()->arrange();
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}
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}
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size_t
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canvas_get_selected_modules_count(
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canvas_handle canvas)
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{
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return canvas_ptr->get()->selected_items().size();
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}
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bool
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canvas_get_one_selected_module(
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canvas_handle canvas,
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void ** module_context_ptr)
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{
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int i;
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std::list<boost::shared_ptr<FlowCanvas::Item> > modules = canvas_ptr->get()->selected_items();
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if (modules.size() != 1)
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{
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return false;
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}
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i = 0;
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for (std::list<boost::shared_ptr<FlowCanvas::Item> >::iterator m = modules.begin(); m != modules.end(); ++m)
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{
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boost::shared_ptr<module_cls> module = boost::dynamic_pointer_cast<module_cls>(*m);
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if (module == NULL)
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{
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ASSERT_NO_PASS;
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return false;
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}
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if (i == 0)
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{
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*module_context_ptr = module->m_context;
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i++;
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continue;
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}
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}
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if (i != 1)
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{
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ASSERT_NO_PASS;
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return false;
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}
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return true;
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}
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bool
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canvas_get_two_selected_modules(
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canvas_handle canvas,
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void ** module1_context_ptr,
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void ** module2_context_ptr)
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{
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int i;
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std::list<boost::shared_ptr<FlowCanvas::Item> > modules = canvas_ptr->get()->selected_items();
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if (modules.size() != 2)
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{
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return false;
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}
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i = 0;
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for (std::list<boost::shared_ptr<FlowCanvas::Item> >::iterator m = modules.begin(); m != modules.end(); ++m)
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{
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boost::shared_ptr<module_cls> module = boost::dynamic_pointer_cast<module_cls>(*m);
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if (module == NULL)
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{
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ASSERT_NO_PASS;
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return false;
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}
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switch (i)
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{
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case 0:
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*module1_context_ptr = module->m_context;
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i++;
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continue;
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case 1:
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*module2_context_ptr = module->m_context;
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i++;
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continue;
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}
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}
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if (i != 2)
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{
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ASSERT_NO_PASS;
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return false;
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}
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return true;
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}
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bool
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canvas_create_module(
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canvas_handle canvas,
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const char * name,
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double x,
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double y,
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bool show_title,
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bool show_port_labels,
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void * module_context,
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canvas_module_handle * module_handle_ptr)
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{
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boost::shared_ptr<FlowCanvas::Module> * module;
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module = new boost::shared_ptr<FlowCanvas::Module>(new module_cls(*canvas_ptr, name, x, y, show_title, show_port_labels, module_context));
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canvas_ptr->get()->add_item(*module);
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module->get()->resize();
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*module_handle_ptr = (canvas_module_handle)module;
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return true;
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}
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#define module_ptr ((boost::shared_ptr<FlowCanvas::Module> *)module)
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void
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canvas_set_module_name(
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canvas_module_handle module,
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const char * name)
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{
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module_ptr->get()->set_name(name);
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module_ptr->get()->resize();
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}
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const char *
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canvas_get_module_name(
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canvas_module_handle module)
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{
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return module_ptr->get()->name().c_str();
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}
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bool
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canvas_destroy_module(
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canvas_handle canvas,
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canvas_module_handle module)
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{
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canvas_ptr->get()->remove_item(*module_ptr);
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delete module_ptr;
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return true;
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}
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bool
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canvas_create_port(
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canvas_handle canvas,
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canvas_module_handle module,
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const char * name,
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bool is_input,
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int color,
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void * port_context,
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canvas_port_handle * port_handle_ptr)
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{
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boost::shared_ptr<port_cls> * port;
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port = new boost::shared_ptr<port_cls>(new port_cls(*module_ptr, name, is_input, color, port_context));
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module_ptr->get()->add_port(*port);
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module_ptr->get()->resize();
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*port_handle_ptr = (canvas_port_handle)port;
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return true;
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}
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#undef module_ptr
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#define port_ptr ((boost::shared_ptr<port_cls> *)port)
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bool
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canvas_destroy_port(
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canvas_handle canvas,
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canvas_port_handle port)
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{
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boost::shared_ptr<FlowCanvas::Module> module = port_ptr->get()->module().lock();
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module->remove_port(*port_ptr);
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delete port_ptr;
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module->resize();
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return true;
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}
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int
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canvas_get_port_color(
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canvas_port_handle port)
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{
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return port_ptr->get()->color();
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}
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void
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canvas_set_port_name(
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canvas_port_handle port,
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const char * name)
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{
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port_ptr->get()->set_name(name);
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port_ptr->get()->module().lock()->resize();
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}
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const char *
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canvas_get_port_name(
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canvas_port_handle port)
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{
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return port_ptr->get()->name().c_str();
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}
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#undef port_ptr
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#define port1_ptr ((boost::shared_ptr<port_cls> *)port1)
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#define port2_ptr ((boost::shared_ptr<port_cls> *)port2)
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bool
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canvas_add_connection(
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canvas_handle canvas,
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canvas_port_handle port1,
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canvas_port_handle port2,
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uint32_t color)
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{
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canvas_ptr->get()->add_connection(*port1_ptr, *port2_ptr, color);
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return true;
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}
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bool
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canvas_remove_connection(
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canvas_handle canvas,
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canvas_port_handle port1,
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canvas_port_handle port2)
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{
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canvas_ptr->get()->remove_connection(*port1_ptr, *port2_ptr);
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return true;
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}
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#undef port1_ptr
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#undef port2_ptr
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bool canvas_cls::canvas_event(GdkEvent * event)
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{
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assert(event);
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if (m_fill_canvas_menu != NULL && event->type == GDK_BUTTON_PRESS && event->button.button == 3)
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{
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Gtk::Menu * menu_ptr;
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menu_ptr = new Gtk::Menu();
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m_fill_canvas_menu(menu_ptr->gobj(), m_context);
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menu_ptr->show_all();
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menu_ptr->popup(event->button.button, event->button.time);
|
|
return true;
|
|
}
|
|
|
|
return Canvas::canvas_event(event);
|
|
}
|
|
|
|
void
|
|
canvas_cls::connect(
|
|
boost::shared_ptr<FlowCanvas::Connectable> c1,
|
|
boost::shared_ptr<FlowCanvas::Connectable> c2)
|
|
{
|
|
if (m_connect_request != NULL)
|
|
{
|
|
boost::shared_ptr<port_cls> port1 = boost::dynamic_pointer_cast<port_cls>(c1);
|
|
boost::shared_ptr<port_cls> port2 = boost::dynamic_pointer_cast<port_cls>(c2);
|
|
m_connect_request(port1->m_context, port2->m_context);
|
|
}
|
|
}
|
|
|
|
void
|
|
canvas_cls::disconnect(
|
|
boost::shared_ptr<FlowCanvas::Connectable> c1,
|
|
boost::shared_ptr<FlowCanvas::Connectable> c2)
|
|
{
|
|
if (m_disconnect_request != NULL)
|
|
{
|
|
boost::shared_ptr<port_cls> port1 = boost::dynamic_pointer_cast<port_cls>(c1);
|
|
boost::shared_ptr<port_cls> port2 = boost::dynamic_pointer_cast<port_cls>(c2);
|
|
m_disconnect_request(port1->m_context, port2->m_context);
|
|
}
|
|
}
|
|
|
|
bool
|
|
canvas_enum_modules(
|
|
canvas_handle canvas,
|
|
void * callback_context,
|
|
bool (* callback)(void * context, canvas_module_handle module))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
canvas_enum_module_ports(
|
|
canvas_handle canvas,
|
|
canvas_module_handle module,
|
|
void * callback_context,
|
|
bool (* callback)(void * context, canvas_port_handle port))
|
|
{
|
|
return false;
|
|
}
|