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ardour/gtk2_ardour/imageframe_socket_handler.cc

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/*
Copyright (C) 2003 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iostream>
#include <iomanip>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <cstdio>
#include <sigc++/bind.h>
#include <gtkmm2ext/gtk_ui.h>
#include "imageframe_socket_handler.h"
#include "imageframe_time_axis.h"
#include "imageframe_time_axis_view.h"
#include "imageframe_time_axis_group.h"
#include "imageframe_view.h"
#include "marker_time_axis.h"
#include "marker_time_axis_view.h"
#include "ardour_ui.h"
#include "public_editor.h"
#include "gui_thread.h"
#include "i18n.h"
#include "ardour/session.h"
#include "ardour/session_utils.h"
#include <unistd.h>
using namespace std;
using namespace ardourvis ;
using namespace ARDOUR;
using namespace PBD;
ImageFrameSocketHandler* ImageFrameSocketHandler::_instance = 0 ;
/**
* Constructs a new ImageFrameSocketHandler to handle communication between Ardour and the Image Compositor
*
* @param ed the PublicEditor
*/
ImageFrameSocketHandler::ImageFrameSocketHandler(PublicEditor& ed) : thePublicEditor(ed), theArdourToCompositorSocket(-1)
{
}
/**
* Descructor
* this will shutdown the socket if open
*/
ImageFrameSocketHandler::~ImageFrameSocketHandler()
{
close_connection() ;
}
/**
* Returns the instance of the ImageFrameSocketHandler
* the instance should first be created with createInstance
*
* @return the instance of the ImageFrameSocketHandler
*/
ImageFrameSocketHandler*
ImageFrameSocketHandler::get_instance()
{
return(_instance) ;
}
/**
* Create an new instance of the ImageFrameSocketHandler, if one does not already exist
*
* @param ed the Ardour PublicEditor
*/
ImageFrameSocketHandler*
ImageFrameSocketHandler::create_instance(PublicEditor& ed)
{
if(_instance)
{
return(_instance) ;
}
else
{
_instance = new ImageFrameSocketHandler(ed) ;
return(_instance) ;
}
}
/**
* call back to handle doing the processing work
* This method is added to the gdk main loop and called when there is data
* upon the socket.
*
*/
void
ImageFrameSocketHandler::image_socket_callback(void *arg, int32_t fd, GdkInputCondition cond)
{
char buf[ardourvis::MAX_MSG_SIZE + 1] ;
memset(buf, 0, (ardourvis::MAX_MSG_SIZE + 1)) ;
buf[ardourvis::MAX_MSG_SIZE] = '\0' ;
int retcode = ::recv(fd, buf, MAX_MSG_SIZE, 0) ;
if (retcode == 0)
{
//end-of-file, other end closed or shutdown?
ARDOUR_UI::instance()->popup_error(_("Image Compositor Socket has been shutdown/closed"));
// assume socket has been shutdown, tell, someone interested,
// and remove the socket from the event loop
ImageFrameSocketHandler* ifsh = ImageFrameSocketHandler::get_instance() ;
gdk_input_remove(ifsh->theGdkInputTag) ;
ifsh->close_connection() ;
ifsh->CompositorSocketShutdown() ; /* EMIT_SIGNAL */
}
if(retcode > 0)
{
//std::cout << "Received Msg [" << buf << "]\n" ;
ImageFrameSocketHandler* ifsh = ImageFrameSocketHandler::get_instance() ;
std::string mType = ifsh->get_message_part(0,2,buf) ;
if(mType == ardourvis::INSERT_ITEM)
{
ifsh->handle_insert_message(buf) ;
}
else if (mType == ardourvis::REMOVE_ITEM)
{
ifsh->handle_remove_message(buf) ;
}
else if (mType == ardourvis::RENAME_ITEM)
{
ifsh->handle_rename_message(buf) ;
}
else if (mType == ardourvis::ITEM_UPDATE)
{
ifsh->handle_item_update_message(buf) ;
}
else if (mType == ardourvis::REQUEST_DATA)
{
ifsh->handle_request_data(buf) ;
}
else if (mType == ardourvis::ITEM_SELECTED)
{
ifsh->handle_item_selected(buf) ;
}
else if(mType == ardourvis::SESSION_ACTION)
{
ifsh->handle_session_action(buf) ;
}
else
{
std::string errMsg = "Unknown Message type : " ;
errMsg.append(mType) ;
ifsh->send_return_failure(errMsg) ;
}
}
}
/**
* Attempt to connect to the image compositor on the specified host and port
*
* @param hostIp the ip address of the image compositor host
* @param port the oprt number to attemp the connection on
* @return true if the connection was a succees
* false otherwise
*/
bool
ImageFrameSocketHandler::connect(const char * hostIp, int32_t port)
{
if (is_connected())
{
//already connected...
return(true) ;
}
theArdourToCompositorSocket = socket(AF_INET, SOCK_STREAM, 0) ;
if(theArdourToCompositorSocket == -1)
{
return(false) ;
}
int on = 1 ;
setsockopt(theArdourToCompositorSocket, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on)) ;
sockaddr_in m_addr ;
m_addr.sin_family = AF_INET ;
m_addr.sin_port = htons(port) ;
m_addr.sin_addr.s_addr = inet_addr(hostIp) ;
int status = ::connect(theArdourToCompositorSocket, (sockaddr *) &m_addr, sizeof(m_addr)) ;
if(status == -1)
{
theArdourToCompositorSocket = -1 ;
return(false) ;
}
return(true) ;
}
/**
* Closes the connection to th Image Compositor
*
*/
void
ImageFrameSocketHandler::close_connection()
{
if(is_connected())
{
::close(theArdourToCompositorSocket) ;
theArdourToCompositorSocket = -1 ;
}
}
/**
* Returns true if this ImagFrameSocketHandler is currently connected to rthe image compositor
*
* @return true if connected to the image compositor
*/
bool
ImageFrameSocketHandler::is_connected()
{
return(theArdourToCompositorSocket == -1 ? false : true) ;
}
/**
* Sets the tag used to describe this input within gtk
* this is returned when gdk_input_add is called and is required to remove the input
*
* @param tag the gdk input tag of this input
*/
void
ImageFrameSocketHandler::set_gdk_input_tag(int tag)
{
theGdkInputTag = tag ;
}
/**
* Returns the gdk input tag of this input
*
* @return the gdk input tag of this input
* @see setGdkInputTag
*/
int
ImageFrameSocketHandler::get_gdk_input_tag()
{
return(theGdkInputTag) ;
}
/**
* Returns the socket file descriptor
*
* @return the Sockt file descriptor
*/
int
ImageFrameSocketHandler::get_socket_descriptor()
{
return(theArdourToCompositorSocket) ;
}
//---------------------------------------------------------------------------------------//
// Handle Sending messages to the Image Compositor
//----------------------------
// ImageFrameTimeAxis Messages
/**
* Sends a message stating that the named image frame time axis has been removed
*
* @param track_id the unique id of the removed image frame time axis
* @param src the identity of the object that initiated the change
*/
void
ImageFrameSocketHandler::send_imageframe_time_axis_removed(const string & track_id, void* src)
{
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::REMOVE_ITEM << ardourvis::IMAGEFRAME_TIME_AXIS ;
// add the id length, and the id
msgBuffer << std::setw(3) << track_id.length() ;
msgBuffer << track_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
/**
* Sends a message indicating that an ImageFrameTimeAxis has been renamed
*
* @param new_id the new name, or Id, of the track
* @param old_id the old name, or Id, of the track
* @param src the identity of the object that initiated the change
* @param time_axis the time axis that has changed
*/
void
ImageFrameSocketHandler::send_imageframe_time_axis_renamed(const string & new_id, const string & old_id, void* src, ImageFrameTimeAxis* time_axis)
{
// ENSURE_GUI_THREAD(*this, &ImageFrameSocketHandler::send_imageframe_time_axis_renamed, new_id, old_id, src, time_axis);
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::RENAME_ITEM << ardourvis::IMAGEFRAME_TIME_AXIS ;
// add the old id and length
msgBuffer << std::setw(3) << old_id.length() ;
msgBuffer << old_id ;
// add the new id and length
msgBuffer << std::setw(3) << new_id.length() ;
msgBuffer << new_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
//------------------------
// MarkerTimeAxis Messages
/**
* Sends a message stating that the named marker time axis has been removed
*
* @param track_id the unique id of the removed image frame time axis
* @param src the identity of the object that initiated the change
*/
void
ImageFrameSocketHandler::send_marker_time_axis_removed(const string & track_id, void* src)
{
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::REMOVE_ITEM << ardourvis::MARKER_TIME_AXIS ;
// add the id length, and the id
msgBuffer << std::setw(3) << track_id.length() ;
msgBuffer << track_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
/**
* Sends a message indicating that an MarkerTimeAxis has been renamed
*
* @param new_id the new name, or Id, of the track
* @param old_id the old name, or Id, of the track
* @param src the identity of the object that initiated the change
* @param time_axis the time axis that has changed
*/
void
ImageFrameSocketHandler::send_marker_time_axis_renamed(const string & new_id, const string & old_id, void* src, MarkerTimeAxis* time_axis)
{
// ENSURE_GUI_THREAD (*this, &ImageFrameSocketHandler::send_marker_time_axis_renamed, new_id, old_id, src, time_axis)
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// ctreate a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::RENAME_ITEM << ardourvis::MARKER_TIME_AXIS ;
// add the old id and length
msgBuffer << std::setw(3) << old_id.length() ;
msgBuffer << old_id ;
// add the new id and length
msgBuffer << std::setw(3) << new_id.length() ;
msgBuffer << new_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
//---------------------------------
// ImageFrameTimeAxisGroup Messages
/**
* Sends a message stating that the group has been removed
*
* @param group_id the unique id of the removed image frame time axis
* @param src the identity of the object that initiated the change
* @param group the group that has changed
*/
void
ImageFrameSocketHandler::send_imageframe_time_axis_group_removed(const string & group_id, void* src, ImageFrameTimeAxisGroup* group)
{
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::REMOVE_ITEM << ardourvis::IMAGEFRAME_GROUP ;
// add the id length, and the id of the parent image time axis
std::string track_id = group->get_view().trackview().name() ;
msgBuffer << std::setw(3) << track_id.length() ;
msgBuffer << track_id ;
// add the group id and length
msgBuffer << std::setw(3) << group_id.length() ;
msgBuffer << group_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
/**
* Send a message indicating that an ImageFrameTimeAxisGroup has been renamed
*
* @param new_id the new name, or Id, of the group
* @param old_id the old name, or Id, of the group
* @param src the identity of the object that initiated the change
* @param group the group that has changed
*/
void
ImageFrameSocketHandler::send_imageframe_time_axis_group_renamed(const string & new_id, const string & old_id, void* src, ImageFrameTimeAxisGroup* group)
{
// ENSURE_GUI_THREAD (*this, &ImageFrameSocketHandler::send_imageframe_time_axis_group_renamed, new_id, old_id, src, group)
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// ctreate a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::RENAME_ITEM << ardourvis::IMAGEFRAME_GROUP ;
// add the track this group is upon
std::string track_id = group->get_view().trackview().name() ;
msgBuffer << std::setw(3) << track_id.length() << track_id ;
// add the old id and length
msgBuffer << std::setw(3) << old_id.length() ;
msgBuffer << old_id ;
// add the new id and length
msgBuffer << std::setw(3) << new_id.length() ;
msgBuffer << new_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
//---------------------------------
// ImageFrameView Messages
/**
* Send an Image Frame View Item position changed message
*
* @param pos the new position value
* @param src the identity of the object that initiated the change
* @param item the time axis item whos position has changed
*/
void
ImageFrameSocketHandler::send_imageframe_view_position_change(nframes_t pos, void* src, ImageFrameView* item)
{
// ENSURE_GUI_THREAD (*this, &ImageFrameSocketHandler::send_imageframe_view_position_change, pos, src, item)
if(this == src || src == 0)
{
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::ITEM_UPDATE << ardourvis::IMAGEFRAME_ITEM << ardourvis::POSITION_CHANGE ;
// add the item description
this->compose_imageframe_item_desc(item, msgBuffer) ;
msgBuffer << std::setw(ardourvis::TIME_VALUE_CHARS) << pos ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
/**
* Send a Image Frame View item duration changed message
*
* @param dur the the new duration value
* @param src the identity of the object that initiated the change
* @param item the item which has had a duration change
*/
void
ImageFrameSocketHandler::send_imageframe_view_duration_change(nframes_t dur, void* src, ImageFrameView* item)
{
// ENSURE_GUI_THREAD (*this, &ImageFrameSocketHandler::send_imageframe_view_duration_change, dur, src, item)
if(this == src || src == 0)
{
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::ITEM_UPDATE << ardourvis::IMAGEFRAME_ITEM << ardourvis::DURATION_CHANGE ;
this->compose_imageframe_item_desc(item, msgBuffer) ;
msgBuffer << std::setw(ardourvis::TIME_VALUE_CHARS) << dur ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
/**
* Send a message indicating that an ImageFrameView has been renamed
*
* @param item the ImageFrameView which has been renamed
* @param src the identity of the object that initiated the change
* @param item the renamed item
*/
void
ImageFrameSocketHandler::send_imageframe_view_renamed(const string & new_id, const string & old_id, void* src, ImageFrameView* item)
{
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// ctreate a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::RENAME_ITEM << ardourvis::IMAGEFRAME_ITEM ;
this->compose_imageframe_item_desc(item, msgBuffer) ;
// add the old id and length
msgBuffer << std::setw(3) << old_id.length() ;
msgBuffer << old_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
/**
* Send a message indicating that an ImageFrameView item has been removed message
*
* @param item_id the id of the item that was removed
* @param item the removed item
*/
void
ImageFrameSocketHandler::send_imageframe_view_removed(const string & item_id, void* src, ImageFrameView* item)
{
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::REMOVE_ITEM << ardourvis::IMAGEFRAME_ITEM ;
// add the id length, and the id
ImageFrameTimeAxisGroup* parentGroup = item->get_time_axis_group() ;
std::string group_id = parentGroup->get_group_name() ;
std::string track_id = parentGroup->get_view().trackview().name() ;
msgBuffer << std::setw(3) << track_id.length() << track_id ;
msgBuffer << std::setw(3) << group_id.length() << group_id ;
msgBuffer << std::setw(3) << item_id.length() << item_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
//---------------------------------
// MarkerView Messages
/**
* Send a Marker View Item position changed message
*
* @param pos the new position value
* @param src the identity of the object that initiated the change
* @param item the time axis item whos position has changed
*/
void
ImageFrameSocketHandler::send_marker_view_position_change(nframes_t pos, void* src, MarkerView* item)
{
if(this == src || src == 0)
{
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::ITEM_UPDATE << ardourvis::MARKER_ITEM << ardourvis::POSITION_CHANGE ;
// add the item description
this->compose_marker_item_desc(item, msgBuffer) ;
msgBuffer << std::setw(ardourvis::TIME_VALUE_CHARS) << pos ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
/**
* Send a Marker View item duration changed message
*
* @param dur the new duration value
* @param src the identity of the object that initiated the change
* @param item the time axis item whos position has changed
*/
void
ImageFrameSocketHandler::send_marker_view_duration_change(nframes_t dur, void* src, MarkerView* item)
{
if(this == src || src == 0)
{
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::ITEM_UPDATE << ardourvis::MARKER_ITEM << ardourvis::DURATION_CHANGE ;
this->compose_marker_item_desc(item, msgBuffer) ;
msgBuffer << std::setw(ardourvis::TIME_VALUE_CHARS) << dur ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
/**
* Send a message indicating that a MarkerView has been renamed
*
* @param new_id the new_id of the object
* @param old_id the old_id of the object
* @param src the identity of the object that initiated the change
* @param item the MarkerView which has been renamed
*/
void
ImageFrameSocketHandler::send_marker_view_renamed(const string & new_id, const string & old_id, void* src, MarkerView* item)
{
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// ctreate a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::RENAME_ITEM << ardourvis::MARKER_ITEM ;
this->compose_marker_item_desc(item, msgBuffer) ;
// add the old id and length
msgBuffer << std::setw(3) << old_id.length() ;
msgBuffer << old_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
/**
* Send a message indicating that a MarkerView item has been removed message
*
* @param item_id the id of the item that was removed
* @param src the identity of the object that initiated the change
* @param item the MarkerView which has been removed
*/
void
ImageFrameSocketHandler::send_marker_view_removed(const string & item_id, void* src, MarkerView* item)
{
if(this == src || src == 0)
{
// ie the change originated from us, then dont send any message back
return ;
}
// create a message buffer
std::ostringstream msgBuffer ;
msgBuffer << std::setfill('0') ;
// add the msg type
msgBuffer << ardourvis::REMOVE_ITEM << ardourvis::MARKER_ITEM ;
// add the id length, and the id
std::string track_id = item->get_time_axis_view().name() ;
msgBuffer << std::setw(3) << track_id.length() << track_id ;
msgBuffer << std::setw(3) << item_id.length() << item_id ;
send_message(msgBuffer.str()) ;
// XXX should do something with the return
std::string retmsg ;
read_message(retmsg) ;
}
//---------------------------------------------------------------------------------------//
//---------------------------------------------------------------------------------------//
//---------------------------------------------------------------------------------------//
// Message breakdown ie avoid a big if...then...else
/**
* Handle insert item requests
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_insert_message(const char* msg)
{
// handle the insert item message
// determine the object type to insert based upon characters 2-3
std::string oType = get_message_part(2,2,msg) ;
if(oType == ardourvis::IMAGEFRAME_TIME_AXIS)
{
this->handle_insert_imageframe_time_axis(msg) ;
}
else if (oType == ardourvis::MARKER_TIME_AXIS)
{
this->handle_insert_marker_time_axis(msg) ;
}
else if (oType == ardourvis::IMAGEFRAME_GROUP)
{
this->handle_insert_imageframe_group(msg) ;
}
else if (oType == ardourvis::IMAGEFRAME_ITEM)
{
this->handle_insert_imageframe_view(msg) ;
}
else if (oType == ardourvis::MARKER_ITEM)
{
this->handle_insert_marker_view(msg) ;
}
else
{
std::string errMsg = "Unknown Object type during insert: " ;
errMsg.append(oType) ;
send_return_failure(errMsg) ;
}
}
/**
* Handle remove item requests
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_remove_message(const char* msg)
{
// handle the removal of an item message
// determine the object type to remove based upon characters 2-3
std::string oType = get_message_part(2,2,msg) ;
if(oType == ardourvis::IMAGEFRAME_TIME_AXIS)
{
this->handle_remove_imageframe_time_axis(msg) ;
}
else if (oType == ardourvis::MARKER_TIME_AXIS)
{
this->handle_remove_marker_time_axis(msg) ;
}
else if (oType == ardourvis::IMAGEFRAME_ITEM)
{
this->handle_remove_imageframe_view(msg) ;
}
else if (oType == ardourvis::MARKER_ITEM)
{
this->handle_remove_marker_view(msg) ;
}
else
{
std::string errMsg = "Unknown Object type during Remove: " ;
errMsg.append(oType) ;
send_return_failure(errMsg) ;
}
}
/**
* Handle rename item requests
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_rename_message(const char* msg)
{
// handle the renaming of an item message
// determine the object type to rename based upon characters 2-3
std::string oType = get_message_part(2,2,msg) ;
if(oType == ardourvis::IMAGEFRAME_TIME_AXIS)
{
this->handle_rename_imageframe_time_axis(msg) ;
}
else if (oType == ardourvis::MARKER_TIME_AXIS)
{
this->handle_rename_marker_time_axis(msg) ;
}
else if (oType == ardourvis::IMAGEFRAME_ITEM)
{
this->handle_rename_imageframe_view(msg) ;
}
else if (oType == ardourvis::MARKER_ITEM)
{
this->handle_rename_marker_view(msg) ;
}
else
{
std::string errMsg = "Unknown Object type during Rename: " ;
errMsg.append(oType) ;
send_return_failure(errMsg) ;
}
}
/**
* Handle a request for session information
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_request_data(const char* msg)
{
// determine the request type
std::string reqType = get_message_part(2,2,msg) ;
if(reqType == ardourvis::SESSION_NAME)
{
handle_session_name_request(msg) ;
}
}
/**
* Handle the update of a particular item
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_item_update_message(const char* msg)
{
// determin the object that requires updating, characters 2-3
std::string oType = get_message_part(2,2,msg) ;
// What needs updating? chars 4-5
std::string attr = get_message_part(4,2,msg) ;
if(oType == ardourvis::IMAGEFRAME_ITEM)
{
if(attr == ardourvis::POSITION_CHANGE)
{
handle_imageframe_view_position_update(msg) ;
}
else if(attr == ardourvis::DURATION_CHANGE)
{
handle_imageframe_view_duration_update(msg) ;
}
else if(attr == ardourvis::POSITION_LOCK_CHANGE)
{
handle_imageframe_position_lock_update(msg) ;
}
else if(attr == ardourvis::MAX_DURATION_CHANGE)
{
handle_imageframe_view_max_duration_update(msg) ;
}
else if(attr == ardourvis::MAX_DURATION_ENABLE_CHANGE)
{
handle_imageframe_view_max_duration_enable_update(msg) ;
}
else if(attr == ardourvis::MIN_DURATION_CHANGE)
{
handle_imageframe_view_min_duration_update(msg) ;
}
else if(attr == ardourvis::MIN_DURATION_ENABLE_CHANGE)
{
handle_imageframe_view_min_duration_enable_update(msg) ;
}
else
{
std::string errMsg = "Unknown Attribute during Item Update: " ;
errMsg.append(oType) ;
send_return_failure(errMsg) ;
}
}
else if(oType == ardourvis::MARKER_ITEM)
{
if(attr == ardourvis::POSITION_CHANGE)
{
handle_marker_view_position_update(msg) ;
}
else if(attr == ardourvis::DURATION_CHANGE)
{
handle_marker_view_duration_update(msg) ;
}
else
{
std::string errMsg = "Unknown Attribute during Item Update: " ;
errMsg.append(oType) ;
send_return_failure(errMsg) ;
}
}
else
{
std::string errMsg = "Unknown Object type during Item Update: " ;
errMsg.append(oType) ;
send_return_failure(errMsg) ;
}
}
/**
* Handle the selection of an Item
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_item_selected(const char* msg)
{
// determine the object that requires updating, characters 2-3
std::string oType = get_message_part(2,2,msg) ;
if(oType == std::string(ardourvis::IMAGEFRAME_ITEM))
{
int position = 4 ; // message type chars
std::string track_id ;
std::string scene_id ;
std::string item_id ;
int track_id_size ;
int scene_id_size ;
int item_id_size ;
this->decompose_imageframe_item_desc(msg, position, track_id, track_id_size, scene_id, scene_id_size, item_id, item_id_size) ;
// get the named time axis
ImageFrameTimeAxis* ifta = dynamic_cast<ImageFrameTimeAxis*>(thePublicEditor.get_named_time_axis(track_id)) ;
if(!ifta)
{
send_return_failure(std::string("No parent Image Track found : ").append(track_id)) ;
}
else
{
// get the parent scene
ImageFrameTimeAxisGroup* iftag = ifta->get_view()->get_named_imageframe_group(scene_id) ;
if(!iftag)
{
send_return_failure(std::string("No parent Scene found : ").append(scene_id)) ;
}
else
{
ImageFrameView* ifv = iftag->get_named_imageframe_item(item_id) ;
if(!ifv)
{
send_return_failure(std::string("No Image Frame Item found : ").append(item_id)) ;
}
else
{
ifv->set_selected(true) ;
ifta->get_view()->set_selected_imageframe_view(iftag, ifv) ;
thePublicEditor.scroll_timeaxis_to_imageframe_item(ifv) ;
send_return_success() ;
}
}
}
}
}
/**
* Handle s session action message
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_session_action(const char* msg)
{
std::string actionType = get_message_part(2,2,msg) ;
if(actionType == ardourvis::OPEN_SESSION)
{
this->handle_open_session(msg) ;
}
}
//---------------------------------------------------------------------------------------//
// handlers for specific insert procedures
/**
* Handle the insertion of a new ImaegFrameTimeAxis
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_insert_imageframe_time_axis(const char* msg)
{
int position = 4 ; // message type chars
// get the ImageFrameTrack name size
int track_name_size = atoi(get_message_part(position, ardourvis::TEXT_SIZE_CHARS, msg).c_str()) ;
position += ardourvis::TEXT_SIZE_CHARS ;
// get the image frame track name
std::string track_name = get_message_part(position, track_name_size, msg) ;
position += track_name_size ;
// check we dont already have an time axis with that name
TimeAxisView* tav = thePublicEditor.get_named_time_axis(track_name) ;
if(tav)
{
std::string errmsg("Track already exists: ") ;
errmsg.append(track_name) ;
send_return_failure(errmsg) ;
}
else
{
thePublicEditor.add_imageframe_time_axis(track_name, this) ;
TimeAxisView* new_tav = thePublicEditor.get_named_time_axis(track_name) ;
if(new_tav)
{
ImageFrameTimeAxis* ifta = (ImageFrameTimeAxis*)new_tav ;
ifta->VisualTimeAxisRemoved.connect(sigc::mem_fun(*this, &ImageFrameSocketHandler::send_imageframe_time_axis_removed)) ;
ifta->NameChanged.connect(sigc::bind(sigc::mem_fun(*this, &ImageFrameSocketHandler::send_imageframe_time_axis_renamed), ifta)) ;
send_return_success() ;
}
else
{
std::string msg("Addition Failed: ") ;
msg.append(track_name) ;
send_return_failure(msg) ;
}
}
}
/**
* Handle the insertion of a new MarkerTimeAxis
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_insert_marker_time_axis(const char* msg)
{
int position = 4 ; // message type chars
// get the ImageFrameTrack name size
int track_name_size = atoi(get_message_part(position, ardourvis::TEXT_SIZE_CHARS, msg).c_str()) ;
position += ardourvis::TEXT_SIZE_CHARS ;
// get the image frame track name
std::string track_name = get_message_part(position, track_name_size, msg) ;
position += track_name_size ;
// get the size of the name of the associated track
int assoc_track_name_size = atoi(get_message_part(position, ardourvis::TEXT_SIZE_CHARS, msg).c_str()) ;
position += ardourvis::TEXT_SIZE_CHARS ;
// get the name of the track we associate the marker track with
std::string assoc_track_name = get_message_part(position, assoc_track_name_size, msg) ;
position += assoc_track_name_size ;
// check that we dont already have a time axis with that name
TimeAxisView* checkTav = thePublicEditor.get_named_time_axis(track_name) ;
if(checkTav)
{
std::string errmsg("Track already exists: ") ;
errmsg.append(track_name) ;
send_return_failure(errmsg) ;
}
else
{
// check the associated time axis exists
TimeAxisView* assoc_tav = thePublicEditor.get_named_time_axis(assoc_track_name) ;
if(assoc_tav)
{
thePublicEditor.add_imageframe_marker_time_axis(track_name, assoc_tav, this) ;
TimeAxisView* new_tav = thePublicEditor.get_named_time_axis(track_name) ;
bool added = false ;
if(new_tav)
{
MarkerTimeAxis* mta = dynamic_cast<MarkerTimeAxis*>(new_tav) ;
if(mta)
{
added = true ;
mta->VisualTimeAxisRemoved.connect(sigc::mem_fun(*this, &ImageFrameSocketHandler::send_marker_time_axis_removed)) ;
mta->NameChanged.connect(sigc::bind(sigc::mem_fun(*this, &ImageFrameSocketHandler::send_marker_time_axis_renamed), mta)) ;
}
}
if(added)
{
std::string msg("Addition Failed: ") ;
msg.append(track_name) ;
send_return_failure(msg) ;
}
}
else
{
std::string errmsg("No associated Track Found: ") ;
errmsg.append(track_name) ;
send_return_failure(errmsg) ;
}
}
}
/**
* Handle the insertion of a time axis group (a scene)
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_insert_imageframe_group(const char* msg)
{
int position = 4 ; // message type chars
// get the ImageFrameTrack name size
int track_name_size = atoi(get_message_part(position, ardourvis::TEXT_SIZE_CHARS, msg).c_str()) ;
position += ardourvis::TEXT_SIZE_CHARS ;
// get the image frame track name
std::string track_name = get_message_part(position, track_name_size, msg) ;
position += track_name_size ;
// get the scene id size
int scene_id_size = atoi(get_message_part(position, ardourvis::TEXT_SIZE_CHARS, msg).c_str()) ;
position += ardourvis::TEXT_SIZE_CHARS ;
// get the scene id
std::string scene_id = get_message_part(position, scene_id_size, msg) ;
position += scene_id_size ;
// get the named ImageFrameTrack
ImageFrameTimeAxis* ifta = dynamic_cast<ImageFrameTimeAxis*>(thePublicEditor.get_named_time_axis(track_name)) ;
// check we got a valid ImageFrameTimeAxis
if(!ifta)
{
send_return_failure(std::string("No Image Frame Time Axis Found: ").append(track_name)) ;
return ;
}
ImageFrameTimeAxisGroup* iftag = ifta->get_view()->add_imageframe_group(scene_id, this) ;
if(!iftag)
{
send_return_failure(std::string("Image Frame Group insert failed")) ;
}
else
{
iftag->NameChanged.connect(sigc::bind(sigc::mem_fun(*this, &ImageFrameSocketHandler::send_imageframe_time_axis_group_renamed), iftag)) ;
iftag->GroupRemoved.connect(sigc::bind(sigc::mem_fun(*this, &ImageFrameSocketHandler::send_imageframe_time_axis_group_removed), iftag)) ;
send_return_success() ;
}
}
/**
* Handle the insertion of a new ImageFrameItem
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_insert_imageframe_view(const char* msg)
{
int position = 4 ; // message type chars
// get the ImageFrameTrack name size
int track_name_size = atoi(get_message_part(position,3,msg).c_str()) ;
position += 3 ;
// get the ImageFrameTrack Name
std::string imageframe_track_name = get_message_part(position,track_name_size,msg) ;
position += track_name_size ;
// get the scene name size
int scene_size = atoi(get_message_part(position,3,msg).c_str()) ;
position += 3 ;
// get the scene Name
std::string scene_name = get_message_part(position,scene_size,msg) ;
position += scene_size ;
// get the image frame_id size
int image_id_size = atoi(get_message_part(position,3,msg).c_str()) ;
position += 3 ;
// get the image frame_id
std::string image_id = get_message_part(position,image_id_size,msg) ;
position += image_id_size ;
// get the start frame value
nframes_t start = strtoul((get_message_part(position,10,msg).c_str()),0,10) ;
position += 10 ;
// get the duration value
nframes_t duration = strtoul((get_message_part(position,10,msg).c_str()),0,10) ;
position += 10 ;
//get the named time axis view we about to add an image to
TimeAxisView* tav = thePublicEditor.get_named_time_axis(imageframe_track_name) ;
ImageFrameTimeAxis* ifta = 0 ;
if(tav)
{
ifta = dynamic_cast<ImageFrameTimeAxis*>(tav) ;
}
if(!ifta)
{
std::string errmsg("No Parent Image Track Found: ") ;
errmsg.append(imageframe_track_name) ;
send_return_failure(errmsg) ;
// dont really like all these returns mid-way
// but this is goinf to get awfully if..then nested if not
return ;
}
// check the parent group exists
ImageFrameTimeAxisGroup* iftag = ifta->get_view()->get_named_imageframe_group(scene_name) ;
if(!iftag)
{
std::string errmsg("No Image Frame Group Found: ") ;
errmsg.append(scene_name) ;
send_return_failure(errmsg) ;
return ;
}
// ok, so we have the parent group and track, now we need dome image data
//
// request the image data from the image compositor
//
// ctreate a message buffer
std::ostringstream reqBuffer ;
reqBuffer << std::setfill('0') ;
// add the msg type
reqBuffer << REQUEST_DATA << IMAGE_RGB_DATA ;
// add the image track and size
reqBuffer << std::setw(ardourvis::TEXT_SIZE_CHARS) << track_name_size ;
reqBuffer << imageframe_track_name ;
// add the scene id and size
reqBuffer << std::setw(ardourvis::TEXT_SIZE_CHARS) << scene_size ;
reqBuffer << scene_name ;
// add the image id and size
reqBuffer << std::setw(ardourvis::TEXT_SIZE_CHARS) << image_id_size ;
reqBuffer << image_id ;
// add the preferred image height
reqBuffer << std::setw(ardourvis::TEXT_SIZE_CHARS) << ifta->get_image_display_height() ;
// send the request message
send_message(reqBuffer.str()) ;
// read the reply, the inital image data message
// this gives us the image dimensions and the expected size of the image data
// msg type(4) + image width(3) + height(3) + num channels(3) + size of the image data (32)
std::string init_image_data_msg ;
read_message(init_image_data_msg) ;
int init_msg_pos = 4 ;
int imgWidth = atoi(init_image_data_msg.substr(init_msg_pos, ardourvis::IMAGE_SIZE_CHARS).c_str()) ;
init_msg_pos += ardourvis::IMAGE_SIZE_CHARS ;
int imgHeight = atoi(init_image_data_msg.substr(init_msg_pos, ardourvis::IMAGE_SIZE_CHARS).c_str()) ;
init_msg_pos += ardourvis::IMAGE_SIZE_CHARS ;
int imgChannels = atoi(init_image_data_msg.substr(init_msg_pos, ardourvis::IMAGE_SIZE_CHARS).c_str()) ;
init_msg_pos += ardourvis::IMAGE_SIZE_CHARS ;
int imgSize = atoi(init_image_data_msg.substr(init_msg_pos, ardourvis::IMAGE_DATA_MESSAGE_SIZE_CHARS).c_str()) ;
// send a success msg
// we need to do this to keep things moving
send_return_success() ;
// create our image rgb buffer, this holds the image data we receive
unsigned char* rgb_img_buf = new unsigned char[imgSize] ;
int retcode = ::recv(theArdourToCompositorSocket, rgb_img_buf, imgSize, MSG_WAITALL) ;
if(retcode != imgSize)
{
delete [] rgb_img_buf ;
send_return_failure("Could not create new Image Frame View : image data sizes did not match") ;
}
else
{
ImageFrameView* ifv = iftag->add_imageframe_item(image_id, start, duration, rgb_img_buf, (uint32_t)imgWidth, (uint32_t)imgHeight, (uint32_t)imgChannels, this) ;
if(ifv)
{
ifv->PositionChanged.connect(sigc::bind(sigc::mem_fun(*this, &ImageFrameSocketHandler::send_imageframe_view_position_change), ifv)) ;
ifv->DurationChanged.connect(sigc::bind(sigc::mem_fun(*this, &ImageFrameSocketHandler::send_imageframe_view_duration_change), ifv)) ;
ifv->ItemRemoved.connect(sigc::bind(sigc::mem_fun(*this, &ImageFrameSocketHandler::send_imageframe_view_removed), ifv)) ;
send_return_success() ;
}
else
{
//addition failed. assume duplicate item_id
send_return_failure("Could not create new Image Frame View") ;
}
}
}
/**
* Handle the insertion of a new MarkerItem
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_insert_marker_view(const char* msg)
{}
//---------------------------------------------------------------------------------------//
// handlers for specific removal procedures
/**
* Handle the removal of an ImageTimeAxis
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_remove_imageframe_time_axis(const char* msg)
{}
/**
* Handle the removal of an MarkerTimeAxis
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_remove_marker_time_axis(const char* msg)
{}
/**
* Handle the removal of an ImageFrameTimeAxisGroup
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_remove_imageframe_time_axis_group(const char* msg)
{}
/**
* Handle the removal of an ImageFrameItem
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_remove_imageframe_view(const char* msg)
{}
/**
* Handle the removal of an MarkerItem
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_remove_marker_view(const char* msg)
{}
//---------------------------------------------------------------------------------------//
// handlers for the specific rename procedures
/**
* Handle the renaming of an ImageTimeAxis
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_rename_imageframe_time_axis(const char* msg)
{
// msg [MVIT][oldSize][oldId][newSize][newId]
int position = 4 ; // message type chars
// get the old Id size
int old_id_size = atoi(get_message_part(position,3,msg).c_str()) ;
position += 3 ;
// get the old id
std::string old_id = get_message_part(position,old_id_size,msg) ;
position += old_id_size ;
//get the new Id size
int new_id_size = atoi(get_message_part(position,3,msg).c_str()) ;
position += 3 ;
// get the new Id
std::string new_id = get_message_part(position,new_id_size,msg) ;
position += new_id_size ;
// get the Named time axis
TimeAxisView* tav = thePublicEditor.get_named_time_axis(old_id) ;
if(dynamic_cast<ImageFrameTimeAxis*>(tav))
{
ImageFrameTimeAxis* ifta = dynamic_cast<ImageFrameTimeAxis*>(tav) ;
ifta->set_time_axis_name(new_id, this) ;
send_return_success() ;
}
else
{
std::string msg = "No Image Track Found: " ;
msg.append(old_id) ;
send_return_failure(msg) ;
}
}
/**
* Handle the renaming of an MarkerTimeAxis
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_rename_marker_time_axis(const char* msg)
{}
/**
* Handle the renaming of an ImageFrameItem
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_rename_imageframe_time_axis_group(const char* msg)
{}
/**
* Handle the renaming of an ImageFrameItem
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_rename_imageframe_view(const char* msg)
{}
/**
* Handle the renaming of an Marker
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_rename_marker_view(const char* msg)
{}
//---------------------------------------------------------------------------------------//
// handlers for data request
/**
* Handle a request for the sessnio naem fo the current session
* We return a failure state if no session is open
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_session_name_request(const char* msg)
{
ARDOUR::Session* currentSession = thePublicEditor.session() ;
if(currentSession == 0)
{
// no current session, return failure
std::string msg("No Current Session") ;
send_return_failure(msg) ;
}
else
{
std::string sessionName = currentSession->name() ;
std::string sessionPath = currentSession->path() ;
if(sessionPath[sessionPath.length() -1] != '/')
{
sessionPath.append("/") ;
}
sessionPath.append(sessionName) ;
std::ostringstream msgBuf ;
msgBuf << ardourvis::RETURN_DATA << ardourvis::SESSION_NAME ;
msgBuf << std::setfill('0') ;
msgBuf << std::setw(ardourvis::TEXT_SIZE_CHARS) << sessionPath.length() ;
msgBuf << sessionPath ;
send_message(msgBuf.str()) ;
}
}
//---------------------------------------------------------------------------------------//
// handlers for specific item update changes
/**
* Handle ImageFrameView positional changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_imageframe_view_position_update(const char* msg)
{
int position = 6 ; // message type chars
std::string track_id ;
std::string scene_id ;
std::string item_id ;
int track_id_size ;
int scene_id_size ;
int item_id_size ;
this->decompose_imageframe_item_desc(msg, position, track_id, track_id_size, scene_id, scene_id_size, item_id, item_id_size) ;
nframes_t start_frame = strtoul(get_message_part(position, ardourvis::TIME_VALUE_CHARS, msg).c_str(), 0, 10) ;
position += ardourvis::TIME_VALUE_CHARS ;
// get the named time axis
ImageFrameTimeAxis* ifta = dynamic_cast<ImageFrameTimeAxis*>(thePublicEditor.get_named_time_axis(track_id)) ;
if(!ifta)
{
send_return_failure(std::string("No parent Image Track found: ").append(track_id)) ;
return ;
}
// get the parent scene
ImageFrameTimeAxisGroup* iftag = ifta->get_view()->get_named_imageframe_group(scene_id) ;
if(!iftag)
{
send_return_failure(std::string("No parent Scene found: ").append(scene_id)) ;
return ;
}
ImageFrameView* ifv = iftag->get_named_imageframe_item(item_id) ;
if(!ifv)
{
send_return_failure(std::string("No Image Frame Item found: ").append(item_id)) ;
return ;
}
ifv->set_position(start_frame, this) ;
send_return_success() ;
}
/**
* Handle ImageFrameView Duration changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_imageframe_view_duration_update(const char* msg)
{
int position = 6 ; // message type chars
std::string track_id ;
std::string scene_id ;
std::string item_id ;
int track_id_size ;
int scene_id_size ;
int item_id_size ;
this->decompose_imageframe_item_desc(msg, position, track_id, track_id_size, scene_id, scene_id_size, item_id, item_id_size) ;
nframes_t duration = strtoul(get_message_part(position,ardourvis::TIME_VALUE_CHARS,msg).c_str(),0,10) ;
position += ardourvis::TIME_VALUE_CHARS ;
// get the named time axis
ImageFrameTimeAxis* ifta = dynamic_cast<ImageFrameTimeAxis*>(thePublicEditor.get_named_time_axis(track_id)) ;
if(!ifta)
{
send_return_failure(std::string("No parent Image Track found : ").append(track_id)) ;
return ;
}
// get the parent scene
ImageFrameTimeAxisGroup* iftag = ifta->get_view()->get_named_imageframe_group(scene_id) ;
if(!iftag)
{
send_return_failure(std::string("No parent Scene found : ").append(scene_id)) ;
return ;
}
ImageFrameView* ifv = iftag->get_named_imageframe_item(item_id) ;
if(!ifv)
{
send_return_failure(std::string("No Image Frame Item found : ").append(item_id)) ;
return ;
}
ifv->set_duration(duration, this) ;
send_return_success() ;
}
/**
* Handle ImageFrameView Position Lock Constraint changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_imageframe_position_lock_update(const char* msg)
{
int position = 6 ; // message type chars
std::string track_id ;
std::string group_id ;
std::string item_id ;
int track_id_size ;
int group_id_size ;
int item_id_size ;
this->decompose_imageframe_item_desc(msg, position, track_id, track_id_size, group_id, group_id_size, item_id, item_id_size) ;
std::string pos_lock = get_message_part(position,1,msg) ;
bool pos_lock_active = false ;
if(pos_lock == "0")
{
pos_lock_active = false ;
}
else if(pos_lock == "1")
{
pos_lock_active = true ;
}
else
{
send_return_failure(std::string("Unknown Value used during Position Loack: ").append(pos_lock)) ;
return ;
}
position += 1 ;
int errcode ;
std::string errmsg ;
ImageFrameView* ifv = get_imageframe_view_from_desc(track_id, group_id, item_id, errcode, errmsg) ;
if(ifv)
{
ifv->set_position_locked(pos_lock_active, this) ;
send_return_success() ;
}
else
{
send_return_failure(errmsg) ;
}
}
/**
* Handle ImageFrameView Maximum Duration changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_imageframe_view_max_duration_update(const char* msg)
{
int position = 6 ; // message type chars
std::string track_id ;
std::string group_id ;
std::string item_id ;
int track_id_size ;
int group_id_size ;
int item_id_size ;
this->decompose_imageframe_item_desc(msg, position, track_id, track_id_size, group_id, group_id_size, item_id, item_id_size) ;
nframes_t max_duration = strtoul(get_message_part(position,ardourvis::TIME_VALUE_CHARS,msg).c_str(),0,10) ;
position += ardourvis::TIME_VALUE_CHARS ;
int errcode ;
std::string errmsg ;
ImageFrameView* ifv = get_imageframe_view_from_desc(track_id, group_id, item_id, errcode, errmsg) ;
if(ifv)
{
ifv->set_max_duration(max_duration, this) ;
send_return_success() ;
}
else
{
send_return_failure(errmsg) ;
}
}
/**
* Handle image frame max duration enable constraint changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_imageframe_view_max_duration_enable_update(const char* msg)
{
int position = 6 ; // message type chars
std::string track_id ;
std::string group_id ;
std::string item_id ;
int track_id_size ;
int group_id_size ;
int item_id_size ;
this->decompose_imageframe_item_desc(msg, position, track_id, track_id_size, group_id, group_id_size, item_id, item_id_size) ;
std::string active = get_message_part(position,1,msg) ;
bool max_duration_active = false ;
if(active == "0")
{
max_duration_active = false ;
}
else if(active == "1")
{
max_duration_active = true ;
}
else
{
send_return_failure(std::string("Unknown Value used during enable max duration: ").append(active)) ;
return ;
}
position += 1 ;
int errcode ;
std::string errmsg ;
ImageFrameView* ifv = get_imageframe_view_from_desc(track_id, group_id, item_id, errcode, errmsg) ;
if(ifv)
{
ifv->set_max_duration_active(max_duration_active, this) ;
send_return_success() ;
}
else
{
send_return_failure(errmsg) ;
}
}
/**
* Handle ImageFrameView Minimum Duration changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_imageframe_view_min_duration_update(const char* msg)
{
int position = 6 ; // message type chars
std::string track_id ;
std::string group_id ;
std::string item_id ;
int track_id_size ;
int group_id_size ;
int item_id_size ;
this->decompose_imageframe_item_desc(msg, position, track_id, track_id_size, group_id, group_id_size, item_id, item_id_size) ;
nframes_t min_duration = strtoul(get_message_part(position,ardourvis::TIME_VALUE_CHARS,msg).c_str(),0,10) ;
position += ardourvis::TIME_VALUE_CHARS ;
int errcode ;
std::string errmsg ;
ImageFrameView* ifv = get_imageframe_view_from_desc(track_id, group_id, item_id, errcode, errmsg) ;
if(ifv)
{
ifv->set_min_duration(min_duration, this) ;
send_return_success() ;
}
else
{
send_return_failure(errmsg) ;
}
}
/**
* Handle image frame min duration enable constraint changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_imageframe_view_min_duration_enable_update(const char* msg)
{
int position = 6 ; // message type chars
std::string track_id ;
std::string group_id ;
std::string item_id ;
int track_id_size ;
int group_id_size ;
int item_id_size ;
this->decompose_imageframe_item_desc(msg, position, track_id, track_id_size, group_id, group_id_size, item_id, item_id_size) ;
std::string active = get_message_part(position,1,msg) ;
bool min_duration_active = false ;
if(active == "0")
{
min_duration_active = false ;
}
else if(active == "1")
{
min_duration_active = true ;
}
else
{
send_return_failure(std::string("Unknown Value used during enable max duration: ").append(active)) ;
return ;
}
position += 1 ;
int errcode ;
std::string errmsg ;
ImageFrameView* ifv = get_imageframe_view_from_desc(track_id, group_id, item_id, errcode, errmsg) ;
if(ifv)
{
ifv->set_min_duration_active(min_duration_active, this) ;
send_return_success() ;
}
else
{
send_return_failure(errmsg) ;
}
}
/**
* Handle MarkerView position changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_marker_view_position_update(const char* msg)
{}
/**
* Handle MarkerView duration changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_marker_view_duration_update(const char* msg)
{}
/**
* Handle MarkerView Position Lock Constraint changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_marker_view_position_lock_update(const char* msg)
{
}
/**
* Handle MarkerView maximum duration changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_marker_view_max_duration_update(const char* msg)
{}
/**
* Handle MarkerView minimum duration changes
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_marker_view_min_duration_update(const char* msg)
{}
//---------------------------------------------------------------------------------------//
// handlers for Session Actions
/**
* Handle the opening of a named audio session
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_open_session(const char* msg)
{
// msg [SAOS][sessionSize][sessionPath]
int position = 4 ; // message type chars
// get the session name size
int session_name_size = atoi(get_message_part(position,3,msg).c_str()) ;
position += 3 ;
// get the session name
std::string session_name = get_message_part(position,session_name_size,msg) ;
position += session_name_size ;
// open the session
std::string path, name ;
bool isnew;
if (ARDOUR::find_session(session_name, path, name, isnew) == 0) {
if (ARDOUR_UI::instance()->load_session (path, name) == 0) {
send_return_success() ;
} else {
std::string retMsg = "Failed to load Session" ;
send_return_failure(retMsg) ;
}
} else {
std::string retMsg = "Failed to find Session" ;
send_return_failure(retMsg) ;
}
}
/**
* Handle the closing of a named audio session
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_closed_session(const char* msg)
{}
//---------------------------------------------------------------------------------------//
// handlers for the shutdown of the Image Compositor
/**
* Handle the shutdown message from the image compositor
*
* @param msg the received message
*/
void
ImageFrameSocketHandler::handle_shutdown(const char* msg)
{
CompositorSocketShutdown() ; /* EMIT_SIGNAL */
}
//---------------------------------------------------------------------------------------//
// convenince methods to break up messages
/**
* Returns part of the received message as a std::string
*
* @param start the start character
* @param num_chars the number of characters to read
* @param the message to break apart
* @return the sub string of the message
*/
std::string
ImageFrameSocketHandler::get_message_part(int start, int32_t num_chars, const char* msg)
{
char buf[num_chars + 1] ;
strncpy(buf,msg+start,num_chars) ;
buf[num_chars] = '\0' ;
std::string s(buf) ;
return(s) ;
}
/**
* break up am image item description message
* we break the mesage up into the parent Image Track id and size,
* the parent group id and size, and the image id and size
*
* @param track_id
* @param track_id_size
* @param scene_id
* @param scene_id_size
* @param item_id
* @param item_id_size
*/
void
ImageFrameSocketHandler::decompose_imageframe_item_desc(const char* msg, int& position, std::string& track_id,
int& track_id_size, std::string& scene_id, int& scene_id_size, std::string& item_id, int& item_id_size)
{
// get the track Id size
track_id_size = atoi(get_message_part(position,ardourvis::TEXT_SIZE_CHARS,msg).c_str()) ;
position += ardourvis::TEXT_SIZE_CHARS ;
// get the track id
track_id = get_message_part(position,track_id_size,msg) ;
position += track_id_size ;
// get the track Id size
scene_id_size = atoi(get_message_part(position,ardourvis::TEXT_SIZE_CHARS,msg).c_str()) ;
position += ardourvis::TEXT_SIZE_CHARS ;
// get the scene id
scene_id = get_message_part(position,scene_id_size,msg) ;
position += scene_id_size ;
// get the item id size
item_id_size = atoi(get_message_part(position,ardourvis::TEXT_SIZE_CHARS,msg).c_str()) ;
position += ardourvis::TEXT_SIZE_CHARS ;
// get the item id
item_id = get_message_part(position,item_id_size,msg) ;
position += item_id_size ;
}
/**
* Compose a description of the specified image frame view
* The description consists of the parent track name size and name,
* the parent group name size and name, and the item name size and name
*
* @param ifv the item to string_compose a description of
* @param buffer the buffer to write the description
*/
void
ImageFrameSocketHandler::compose_imageframe_item_desc(ImageFrameView* ifv, std::ostringstream& buffer)
{
buffer << std::setw(3) << ifv->get_time_axis_group()->get_view().trackview().name().length() ;
buffer << ifv->get_time_axis_group()->get_view().trackview().name() ;
// add the parent scene
buffer << std::setw(3) << ifv->get_time_axis_group()->get_group_name().length() ;
buffer << ifv->get_time_axis_group()->get_group_name() ;
// add the ImageFrameItem id length and Id
buffer << setw(3) << ifv->get_item_name().length() ;
buffer << ifv->get_item_name() ;
}
/**
* Compose a description of the specified marker view
* The description consists of the parent track name size and name,
* and the item name size and name
*
* @param mv the item to string_compose a description of
* @param buffer the buffer to write the description
*/
void
ImageFrameSocketHandler::compose_marker_item_desc(MarkerView* mv, std::ostringstream& buffer)
{
MarkerTimeAxis* mta = dynamic_cast<MarkerTimeAxis*>(&mv->get_time_axis_view()) ;
if(!mta)
{
return ;
}
buffer << std::setw(3) << mta->name().length() ;
buffer << mta->name() ;
buffer << std::setw(3) << mv->get_item_name().length() ;
buffer << mv->get_item_name() ;
}
/**
* Returns the ImageFrameView from the specified description
* The errcode parameter is used to indicate the item which caused
* an error on failure of this method
* 0 = success
* 1 = the track item was not found
* 2 = the group item was not found
* 3 = the imageframe item was not found
*
* @paran track_id the track on which the item is placed
* @param group_id the group in which the item is a member
* @param item_id the id of the item
* @param int32_t reference used for error codes on failure
* @param errmsg populated with a description of the error on failure
* @return the described item on success, 0 otherwise
*/
ImageFrameView*
ImageFrameSocketHandler::get_imageframe_view_from_desc(const string & track_id, const string & group_id, const string & item_id, int& errcode, std::string& errmsg)
{
ImageFrameView* item = 0 ;
// get the named time axis
ImageFrameTimeAxis* ifta = dynamic_cast<ImageFrameTimeAxis*>(thePublicEditor.get_named_time_axis(track_id)) ;
if(!ifta)
{
errcode = 1 ;
errmsg = std::string("Image Frame Time Axis Not Found: ").append(track_id) ;
}
else
{
// get the parent scene
ImageFrameTimeAxisGroup* iftag = ifta->get_view()->get_named_imageframe_group(group_id) ;
if(!iftag)
{
errcode = 2 ;
errmsg = std::string("Image Frame Group Not Found: ").append(group_id) ;
}
else
{
ImageFrameView* ifv = iftag->get_named_imageframe_item(item_id) ;
if(!ifv)
{
errcode = 3 ;
errmsg = std::string("Image Frame Item Not Found: ").append(item_id) ;
}
else
{
// yay!!
item = ifv ;
errcode = 0 ;
}
}
}
return(item) ;
}
//---------------------------------------------------------------------------------------//
// Convenince Message Send Methods
#ifndef MSG_NOSIGNAL
#define MSG_NOSIGNAL 0
#endif
/**
* Sends a message throught the socket
*
* @param msg the message to send
* @return the return value of the socket call
*/
int
ImageFrameSocketHandler::send_message(const string & msg)
{
//std::cout << "Sending Message [" << msg << "]\n" ;
int retcode = ::send(theArdourToCompositorSocket, msg.c_str(), msg.length(), MSG_NOSIGNAL) ;
return(retcode) ;
}
/**
* Reads a message from the Socket
*
* @param msg a string to populate with the received message
* @return the return value from the socket call
*/
int
ImageFrameSocketHandler::read_message(std::string& msg)
{
char buf[ardourvis::MAX_MSG_SIZE + 1] ;
memset(buf, 0, (ardourvis::MAX_MSG_SIZE + 1)) ;
msg = "" ;
int retcode = ::recv(theArdourToCompositorSocket, buf, ardourvis::MAX_MSG_SIZE, 0) ;
msg = buf ;
//std::cout << "Received Message [" << msg << "]\n" ;
return(retcode) ;
}
/**
* Convenience method to string_compose and send a success messasge back to the Image Compositor
*
*/
void
ImageFrameSocketHandler::send_return_success()
{
send_message(ardourvis::RETURN_TRUE) ;
}
/**
* Convenience method to string_compose and send a failure messasge back to the Image Compositor
*
* @param msg the failure message
*/
void
ImageFrameSocketHandler::send_return_failure(const std::string& msg)
{
std::ostringstream buf ;
buf << std::setfill('0') ;
buf << ardourvis::RETURN_FALSE ;
buf << std::setw(3) << msg.length(); ;
buf << msg ;
send_message(buf.str()) ;
}
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