hvirtual/cinelerra/mwindowedit.C

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#include "asset.h"
#include "assets.h"
#include "awindowgui.h"
#include "awindow.h"
#include "bcsignals.h"
#include "cache.h"
#include "clip.h"
#include "clipedit.h"
#include "cplayback.h"
#include "ctimebar.h"
#include "cwindow.h"
#include "cwindowgui.h"
#include "bchash.h"
#include "edl.h"
#include "edlsession.h"
#include "filexml.h"
#include "gwindow.h"
#include "gwindowgui.h"
#include "keyframe.h"
#include "language.h"
#include "labels.h"
#include "levelwindow.h"
#include "localsession.h"
#include "mainclock.h"
#include "maincursor.h"
#include "mainerror.h"
#include "mainindexes.h"
#include "mainmenu.h"
#include "mainsession.h"
#include "mainundo.h"
#include "maskautos.h"
#include "mtimebar.h"
#include "mwindowgui.h"
#include "mwindow.h"
#include "panauto.h"
#include "patchbay.h"
#include "playbackengine.h"
#include "pluginset.h"
#include "recordlabel.h"
#include "samplescroll.h"
#include "trackcanvas.h"
#include "track.h"
#include "trackscroll.h"
#include "tracks.h"
#include "transition.h"
#include "transportque.h"
#include "units.h"
#include "undostackitem.h"
#include "vplayback.h"
#include "vwindow.h"
#include "vwindowgui.h"
#include "zoombar.h"
#include "automation.h"
#include "maskautos.h"


#include <string.h>






void MWindow::add_audio_track_entry(int above, Track *dst)
{
        add_audio_track(above, dst);
        save_backup();
        undo->update_undo(_("add track"), LOAD_ALL);

        restart_brender();
        gui->get_scrollbars();
        gui->canvas->draw();
        gui->patchbay->update();
        gui->cursor->draw(1);
        gui->canvas->flash();
        gui->canvas->activate();
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                CHANGE_EDL,
                edl,
                1);
}

void MWindow::add_video_track_entry(Track *dst)
{
        add_video_track(1, dst);
        undo->update_undo(_("add track"), LOAD_ALL);

        restart_brender();
        gui->get_scrollbars();
        gui->canvas->draw();
        gui->patchbay->update();
        gui->cursor->draw(1);
        gui->canvas->flash();
        gui->canvas->activate();
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                                                        CHANGE_EDL,
                                                        edl,
                                                        1);
        save_backup();
}


int MWindow::add_audio_track(int above, Track *dst)
{
        edl->tracks->add_audio_track(above, dst);
        edl->tracks->update_y_pixels(theme);
        save_backup();
        return 0;
}

int MWindow::add_video_track(int above, Track *dst)
{
        edl->tracks->add_video_track(above, dst);
        edl->tracks->update_y_pixels(theme);
        save_backup();
        return 0;
}





void MWindow::asset_to_size()
{
        if(session->drag_assets->total &&
                session->drag_assets->values[0]->video_data)
        {
                int w, h;

// Get w and h
                w = session->drag_assets->values[0]->width;
                h = session->drag_assets->values[0]->height;


                edl->session->output_w = w;
                edl->session->output_h = h;

                if(((edl->session->output_w % 4) || 
                        (edl->session->output_h % 4)) && 
                        edl->session->playback_config->vconfig->driver == PLAYBACK_X11_GL)
                {
                        MainError::show_error(
                                _("This project's dimensions are not multiples of 4 so\n"
                                "it can't be rendered by OpenGL."));
                }


// Get aspect ratio
                if(defaults->get("AUTOASPECT", 0))
                {
                        create_aspect_ratio(edl->session->aspect_w, 
                                edl->session->aspect_h, 
                                w, 
                                h);
                }

                save_backup();

                undo->update_undo(_("asset to size"), LOAD_ALL);
                restart_brender();
                sync_parameters(CHANGE_ALL);
        }
}


void MWindow::asset_to_rate()
{
        if(session->drag_assets->total &&
                session->drag_assets->values[0]->video_data)
        {
                double new_framerate = session->drag_assets->values[0]->frame_rate;
                double old_framerate = edl->session->frame_rate;

                edl->session->frame_rate = new_framerate;
                edl->resample(old_framerate, new_framerate, TRACK_VIDEO);

                save_backup();

                undo->update_undo(_("asset to rate"), LOAD_ALL);
                restart_brender();
                gui->update(1,
                        2,
                        1,
                        1,
                        1, 
                        1,
                        0);
                sync_parameters(CHANGE_ALL);
        }
}



void MWindow::clear_entry()
{
        clear(1);

        edl->optimize();
        save_backup();
        undo->update_undo(_("clear"), LOAD_EDITS | LOAD_TIMEBAR);

        restart_brender();
        update_plugin_guis();
        gui->update(1, 2, 1, 1, 1, 1, 0);
        cwindow->update(1, 0, 0, 0, 1);
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                           CHANGE_EDL,
                           edl,
                           1);
}

void MWindow::clear(int clear_handle)
{
        double start = edl->local_session->get_selectionstart();
        double end = edl->local_session->get_selectionend();
        if(clear_handle || !EQUIV(start, end))
        {
                edl->clear(start, 
                        end, 
                        edl->session->labels_follow_edits, 
                        edl->session->plugins_follow_edits);
        }
}

void MWindow::straighten_automation()
{
        edl->tracks->straighten_automation(
                edl->local_session->get_selectionstart(), 
                edl->local_session->get_selectionend()); 
        save_backup();
        undo->update_undo(_("straighten curves"), LOAD_AUTOMATION); 

        restart_brender();
        update_plugin_guis();
        gui->canvas->draw_overlays();
        gui->canvas->flash();
        sync_parameters(CHANGE_PARAMS);
        gui->patchbay->update();
        cwindow->update(1, 0, 0);
}

void MWindow::clear_automation()
{
        edl->tracks->clear_automation(edl->local_session->get_selectionstart(), 
                edl->local_session->get_selectionend()); 
        save_backup();
        undo->update_undo(_("clear keyframes"), LOAD_AUTOMATION); 

        restart_brender();
        update_plugin_guis();
        gui->canvas->draw_overlays();
        gui->canvas->flash();
        sync_parameters(CHANGE_PARAMS);
        gui->patchbay->update();
        cwindow->update(1, 0, 0);
}

int MWindow::clear_default_keyframe()
{
        edl->tracks->clear_default_keyframe();
        save_backup();
        undo->update_undo(_("clear default keyframe"), LOAD_AUTOMATION);
        
        restart_brender();
        gui->canvas->draw_overlays();
        gui->canvas->flash();
        sync_parameters(CHANGE_PARAMS);
        gui->patchbay->update();
        cwindow->update(1, 0, 0);
        
        return 0;
}

void MWindow::clear_labels()
{
        clear_labels(edl->local_session->get_selectionstart(), 
                edl->local_session->get_selectionend()); 
        undo->update_undo(_("clear labels"), LOAD_TIMEBAR);
        
        gui->timebar->update();
        cwindow->update(0, 0, 0, 0, 1);
        save_backup();
}

int MWindow::clear_labels(double start, double end)
{
        edl->labels->clear(start, end, 0);
        return 0;
}

void MWindow::concatenate_tracks()
{
        edl->tracks->concatenate_tracks(edl->session->plugins_follow_edits);
        save_backup();
        undo->update_undo(_("concatenate tracks"), LOAD_EDITS);

        restart_brender();
        gui->update(1, 1, 0, 0, 1, 0, 0);
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                CHANGE_EDL,
                edl,
                1);
}


void MWindow::copy()
{
        copy(edl->local_session->get_selectionstart(), 
                edl->local_session->get_selectionend());
}

int MWindow::copy(double start, double end)
{
        if(start == end) return 1;

//printf("MWindow::copy 1\n");
        FileXML file;
//printf("MWindow::copy 1\n");
        edl->copy(start, 
                end, 
                0,
                0,
                0,
                &file, 
                plugindb,
                "",
                1);
//printf("MWindow::copy 1\n");

// File is now terminated and rewound

//printf("MWindow::copy 1\n");
        gui->get_clipboard()->to_clipboard(file.string, strlen(file.string), SECONDARY_SELECTION);
//printf("MWindow::copy\n%s\n", file.string);
//printf("MWindow::copy 2\n");
        save_backup();
        return 0;
}

int MWindow::copy_automation()
{
        FileXML file;
        edl->tracks->copy_automation(edl->local_session->get_selectionstart(), 
                edl->local_session->get_selectionend(),
                &file,
                0,
                0); 
        gui->get_clipboard()->to_clipboard(file.string, 
                strlen(file.string), 
                SECONDARY_SELECTION);
        return 0;
}

int MWindow::copy_default_keyframe()
{
        FileXML file;
        edl->tracks->copy_default_keyframe(&file);
        gui->get_clipboard()->to_clipboard(file.string,
                strlen(file.string),
                SECONDARY_SELECTION);
        return 0;
}


// Uses cropping coordinates in edl session to crop and translate video.
// We modify the projector since camera automation depends on the track size.
void MWindow::crop_video()
{

// Clamp EDL crop region
        if(edl->session->crop_x1 > edl->session->crop_x2)
        {
                edl->session->crop_x1 ^= edl->session->crop_x2;
                edl->session->crop_x2 ^= edl->session->crop_x1;
                edl->session->crop_x1 ^= edl->session->crop_x2;
        }
        if(edl->session->crop_y1 > edl->session->crop_y2)
        {
                edl->session->crop_y1 ^= edl->session->crop_y2;
                edl->session->crop_y2 ^= edl->session->crop_y1;
                edl->session->crop_y1 ^= edl->session->crop_y2;
        }

        float old_projector_x = (float)edl->session->output_w / 2;
        float old_projector_y = (float)edl->session->output_h / 2;
        float new_projector_x = (float)(edl->session->crop_x1 + edl->session->crop_x2) / 2;
        float new_projector_y = (float)(edl->session->crop_y1 + edl->session->crop_y2) / 2;
        float projector_offset_x = -(new_projector_x - old_projector_x);
        float projector_offset_y = -(new_projector_y - old_projector_y);

        edl->tracks->translate_projector(projector_offset_x, projector_offset_y);

        edl->session->output_w = edl->session->crop_x2 - edl->session->crop_x1;
        edl->session->output_h = edl->session->crop_y2 - edl->session->crop_y1;
        edl->session->crop_x1 = 0;
        edl->session->crop_y1 = 0;
        edl->session->crop_x2 = edl->session->output_w;
        edl->session->crop_y2 = edl->session->output_h;

// Recalculate aspect ratio
        if(defaults->get("AUTOASPECT", 0))
        {
                create_aspect_ratio(edl->session->aspect_w, 
                        edl->session->aspect_h, 
                        edl->session->output_w, 
                        edl->session->output_h);
        }

        undo->update_undo(_("crop"), LOAD_ALL);

        restart_brender();
        cwindow->playback_engine->que->send_command(CURRENT_FRAME,
                CHANGE_ALL,
                edl,
                1);
        save_backup();
}

void MWindow::cut()
{

        double start = edl->local_session->get_selectionstart();
        double end = edl->local_session->get_selectionend();

        copy(start, end);
        edl->clear(start, 
                end,
                edl->session->labels_follow_edits, 
                edl->session->plugins_follow_edits);


        edl->optimize();
        save_backup();
        undo->update_undo(_("cut"), LOAD_EDITS | LOAD_TIMEBAR);

        restart_brender();
        update_plugin_guis();
        gui->update(1, 2, 1, 1, 1, 1, 0);
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                                                        CHANGE_EDL,
                                                        edl,
                                                        1);
}

int MWindow::cut_automation()
{
        
        copy_automation();

        edl->tracks->clear_automation(edl->local_session->get_selectionstart(), 
                edl->local_session->get_selectionend()); 
        save_backup();
        undo->update_undo(_("cut keyframes"), LOAD_AUTOMATION); 


        restart_brender();
        update_plugin_guis();
        gui->canvas->draw_overlays();
        gui->canvas->flash();
        sync_parameters(CHANGE_PARAMS);
        gui->patchbay->update();
        cwindow->update(1, 0, 0);
        return 0;
}

int MWindow::cut_default_keyframe()
{

        copy_default_keyframe();
        edl->tracks->clear_default_keyframe();
        undo->update_undo(_("cut default keyframe"), LOAD_AUTOMATION);

        restart_brender();
        gui->canvas->draw_overlays();
        gui->canvas->flash();
        sync_parameters(CHANGE_PARAMS);
        gui->patchbay->update();
        cwindow->update(1, 0, 0);
        save_backup();


        return 0;
}

void MWindow::delete_inpoint()
{
        edl->local_session->unset_inpoint();
        save_backup();
}

void MWindow::delete_outpoint()
{
        edl->local_session->unset_outpoint();
        save_backup();
}

void MWindow::delete_track()
{
        if (edl->tracks->last)
                delete_track(edl->tracks->last);
}

void MWindow::delete_tracks()
{
        edl->tracks->delete_tracks();
        undo->update_undo(_("delete tracks"), LOAD_ALL);
        save_backup();

        restart_brender();
        update_plugin_states();
        gui->update(1, 1, 1, 0, 1, 0, 0);
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                           CHANGE_EDL,
                           edl,
                           1);
}

void MWindow::delete_track(Track *track)
{
        edl->tracks->delete_track(track);
        undo->update_undo(_("delete track"), LOAD_ALL);

        restart_brender();
        update_plugin_states();
        gui->update(1, 1, 1, 0, 1, 0, 0);
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                           CHANGE_EDL,
                           edl,
                           1);
        save_backup();
}

void MWindow::detach_transition(Transition *transition)
{
        hide_plugin(transition, 1);
        int is_video = (transition->edit->track->data_type == TRACK_VIDEO);
        transition->edit->detach_transition();
        save_backup();
        undo->update_undo(_("detach transition"), LOAD_ALL);

        if(is_video) restart_brender();
        gui->update(0,
                1,
                0,
                0,
                0, 
                0,
                0);
        sync_parameters(CHANGE_EDL);
}





// Insert data from clipboard
void MWindow::insert(double position, 
        FileXML *file,
        int edit_labels,
        int edit_plugins,
        EDL *parent_edl)
{
// For clipboard pasting make the new edl use a separate session 
// from the master EDL.  Then it can be resampled to the master rates.
// For splice, overwrite, and dragging need same session to get the assets.
        EDL edl(parent_edl);
        ArrayList<EDL*> new_edls;
        uint32_t load_flags = LOAD_ALL;


        new_edls.append(&edl);
        edl.create_objects();




        if(parent_edl) load_flags &= ~LOAD_SESSION;
        if(!edl.session->autos_follow_edits) load_flags &= ~LOAD_AUTOMATION;
        if(!edl.session->labels_follow_edits) load_flags &= ~LOAD_TIMEBAR;

        edl.load_xml(plugindb, file, load_flags);






        paste_edls(&new_edls, 
                LOAD_PASTE, 
                0, 
                position,
                edit_labels,
                edit_plugins,
                0); // overwrite
// if(vwindow->edl)
// printf("MWindow::insert 5 %f %f\n", 
// vwindow->edl->local_session->in_point,
// vwindow->edl->local_session->out_point);
        new_edls.remove_all();
//printf("MWindow::insert 6 %p\n", vwindow->get_edl());
}

void MWindow::insert_effects_canvas(double start,
        double length)
{
        Track *dest_track = session->track_highlighted;
        if(!dest_track) return;


        for(int i = 0; i < session->drag_pluginservers->total; i++)
        {
                PluginServer *plugin = session->drag_pluginservers->values[i];

                insert_effect(plugin->title,
                        0,
                        dest_track,
                        i == 0 ? session->pluginset_highlighted : 0,
                        start,
                        length,
                        PLUGIN_STANDALONE);
        }

        save_backup();
        undo->update_undo(_("insert effect"), LOAD_EDITS | LOAD_PATCHES);
        restart_brender();
        sync_parameters(CHANGE_EDL);
// GUI updated in TrackCanvas, after current_operations are reset
}

void MWindow::insert_effects_cwindow(Track *dest_track)
{
        if(!dest_track) return;


        double start = 0;
        double length = dest_track->get_length();

        if(edl->local_session->get_selectionend() > 
                edl->local_session->get_selectionstart())
        {
                start = edl->local_session->get_selectionstart();
                length = edl->local_session->get_selectionend() - 
                        edl->local_session->get_selectionstart();
        }

        for(int i = 0; i < session->drag_pluginservers->total; i++)
        {
                PluginServer *plugin = session->drag_pluginservers->values[i];


                insert_effect(plugin->title,
                        0,
                        dest_track,
                        0,
                        start,
                        length,
                        PLUGIN_STANDALONE);
        }

        save_backup();
        undo->update_undo(_("insert effect"), LOAD_EDITS | LOAD_PATCHES);
        restart_brender();
        sync_parameters(CHANGE_EDL);
        gui->update(1,
                1,
                0,
                0,
                1,
                0,
                0);
}



void MWindow::insert_effect(char *title, 
        SharedLocation *shared_location, 
        Track *track,
        PluginSet *plugin_set,
        double start,
        double length,
        int plugin_type)
{
        KeyFrame *default_keyframe = 0;
        PluginServer *server = 0;






// Get default keyframe
        if(plugin_type == PLUGIN_STANDALONE)
        {
                default_keyframe = new KeyFrame;
                server = new PluginServer(*scan_plugindb(title, track->data_type));

                server->open_plugin(0, preferences, edl, 0, -1);
                server->save_data(default_keyframe);
        }



// Insert plugin object
        track->insert_effect(title, 
                shared_location, 
                default_keyframe, 
                plugin_set,
                start,
                length,
                plugin_type);

        track->optimize();


        if(plugin_type == PLUGIN_STANDALONE)
        {
                server->close_plugin();
                delete server;
                delete default_keyframe;
        }
}

int MWindow::modify_edithandles()
{

        edl->modify_edithandles(session->drag_start, 
                session->drag_position, 
                session->drag_handle, 
                edl->session->edit_handle_mode[session->drag_button],
                edl->session->labels_follow_edits, 
                edl->session->plugins_follow_edits);

        finish_modify_handles();


//printf("MWindow::modify_handles 1\n");
        return 0;
}

int MWindow::modify_pluginhandles()
{

        edl->modify_pluginhandles(session->drag_start, 
                session->drag_position, 
                session->drag_handle, 
                edl->session->edit_handle_mode[session->drag_button],
                edl->session->labels_follow_edits,
                session->trim_edits);

        finish_modify_handles();

        return 0;
}


// Common to edithandles and plugin handles
void MWindow::finish_modify_handles()
{
        int edit_mode = edl->session->edit_handle_mode[session->drag_button];

        if((session->drag_handle == 1 && edit_mode != MOVE_NO_EDITS) ||
                (session->drag_handle == 0 && edit_mode == MOVE_ONE_EDIT))
        {
                edl->local_session->set_selectionstart(session->drag_position);
                edl->local_session->set_selectionend(session->drag_position);
        }
        else
        if(edit_mode != MOVE_NO_EDITS)
        {
                edl->local_session->set_selectionstart(session->drag_start);
                edl->local_session->set_selectionend(session->drag_start);
        }

        if(edl->local_session->get_selectionstart(1) < 0)
        {
                edl->local_session->set_selectionstart(0);
                edl->local_session->set_selectionend(0);
        }

        save_backup();
        undo->update_undo(_("drag handle"), LOAD_EDITS | LOAD_TIMEBAR);
        restart_brender();
        sync_parameters(CHANGE_EDL);
        update_plugin_guis();
        gui->update(1, 2, 1, 1, 1, 1, 0);
        cwindow->update(1, 0, 0, 0, 1);
}

void MWindow::match_output_size(Track *track)
{
        track->track_w = edl->session->output_w;
        track->track_h = edl->session->output_h;
        save_backup();
        undo->update_undo(_("match output size"), LOAD_ALL);

        restart_brender();
        sync_parameters(CHANGE_EDL);
}


void MWindow::move_edits(ArrayList<Edit*> *edits, 
                Track *track,
                double position,
                int behaviour)
{

        edl->tracks->move_edits(edits, 
                track, 
                position,
                edl->session->labels_follow_edits, 
                edl->session->plugins_follow_edits,
                behaviour);

        save_backup();
        undo->update_undo(_("move edit"), LOAD_ALL);

        restart_brender();
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                CHANGE_EDL,
                edl,
                1);

        update_plugin_guis();
        gui->update(1,
                1,      // 1 for incremental drawing.  2 for full refresh
                1,
                0,
                0, 
                0,
                0);
}

void MWindow::move_effect(Plugin *plugin,
        PluginSet *dest_plugin_set,
        Track *dest_track,
        int64_t dest_position)
{

        edl->tracks->move_effect(plugin, 
                dest_plugin_set, 
                dest_track, 
                dest_position);

        save_backup();
        undo->update_undo(_("move effect"), LOAD_ALL);

        restart_brender();
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                CHANGE_EDL,
                edl,
                1);

        update_plugin_guis();
        gui->update(1,
                1,      // 1 for incremental drawing.  2 for full refresh
                0,
                0,
                0, 
                0,
                0);
}

void MWindow::move_plugins_up(PluginSet *plugin_set)
{

        plugin_set->track->move_plugins_up(plugin_set);

        save_backup();
        undo->update_undo(_("move effect up"), LOAD_ALL);
        restart_brender();
        gui->update(1,
                1,      // 1 for incremental drawing.  2 for full refresh
                0,
                0,
                0, 
                0,
                0);
        sync_parameters(CHANGE_EDL);
}

void MWindow::move_plugins_down(PluginSet *plugin_set)
{

        plugin_set->track->move_plugins_down(plugin_set);

        save_backup();
        undo->update_undo(_("move effect down"), LOAD_ALL);
        restart_brender();
        gui->update(1,
                1,      // 1 for incremental drawing.  2 for full refresh
                0,
                0,
                0, 
                0,
                0);
        sync_parameters(CHANGE_EDL);
}

void MWindow::move_track_down(Track *track)
{
        edl->tracks->move_track_down(track);
        save_backup();
        undo->update_undo(_("move track down"), LOAD_ALL);

        restart_brender();
        gui->update(1, 1, 0, 0, 1, 0, 0);
        sync_parameters(CHANGE_EDL);
        save_backup();
}

void MWindow::move_tracks_down()
{
        edl->tracks->move_tracks_down();
        save_backup();
        undo->update_undo(_("move tracks down"), LOAD_ALL);

        restart_brender();
        gui->update(1, 1, 0, 0, 1, 0, 0);
        sync_parameters(CHANGE_EDL);
        save_backup();
}

void MWindow::move_track_up(Track *track)
{
        edl->tracks->move_track_up(track);
        save_backup();
        undo->update_undo(_("move track up"), LOAD_ALL);
        restart_brender();
        gui->update(1, 1, 0, 0, 1, 0, 0);
        sync_parameters(CHANGE_EDL);
        save_backup();
}

void MWindow::move_tracks_up()
{
        edl->tracks->move_tracks_up();
        save_backup();
        undo->update_undo(_("move tracks up"), LOAD_ALL);
        restart_brender();
        gui->update(1, 1, 0, 0, 1, 0, 0);
        sync_parameters(CHANGE_EDL);
}


void MWindow::mute_selection()
{
        double start = edl->local_session->get_selectionstart();
        double end = edl->local_session->get_selectionend();
        if(start != end)
        {
                edl->clear(start, 
                        end, 
                        0, 
                        edl->session->plugins_follow_edits);
                edl->local_session->set_selectionend(end);
                edl->local_session->set_selectionstart(start);
                edl->paste_silence(start, end, 0, edl->session->plugins_follow_edits);
                save_backup();
                undo->update_undo(_("mute"), LOAD_EDITS);

                restart_brender();
                update_plugin_guis();
                gui->update(1, 2, 1, 1, 1, 1, 0);
                cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                                                                CHANGE_EDL,
                                                                edl,
                                                                1);
        }
}



void MWindow::overwrite(EDL *source)
{
        FileXML file;

        double src_start = source->local_session->get_selectionstart();
        double overwrite_len = source->local_session->get_selectionend() - src_start;
        double dst_start = edl->local_session->get_selectionstart();
        double dst_len = edl->local_session->get_selectionend() - dst_start;

        if (!EQUIV(dst_len, 0) && (dst_len < overwrite_len))
        {
// in/out points or selection present and shorter than overwrite range
// shorten the copy range
                overwrite_len = dst_len;
        }

        source->copy(src_start, 
                src_start + overwrite_len, 
                1,
                0,
                0,
                &file,
                plugindb,
                "",
                1);

// HACK around paste_edl get_start/endselection on its own
// so we need to clear only when not using both io points
// FIXME: need to write simple overwrite_edl to be used for overwrite function
        if (edl->local_session->get_inpoint() < 0 || 
                edl->local_session->get_outpoint() < 0)
                edl->clear(dst_start, 
                        dst_start + overwrite_len, 
                        0, 
                        0);

        paste(dst_start, 
                dst_start + overwrite_len, 
                &file,
                0,
                0);

        edl->local_session->set_selectionstart(dst_start + overwrite_len);
        edl->local_session->set_selectionend(dst_start + overwrite_len);

        save_backup();
        undo->update_undo(_("overwrite"), LOAD_EDITS);

        restart_brender();
        update_plugin_guis();
        gui->update(1, 1, 1, 1, 0, 1, 0);
        sync_parameters(CHANGE_EDL);
}

// For splice and overwrite
int MWindow::paste(double start, 
        double end, 
        FileXML *file,
        int edit_labels,
        int edit_plugins)
{
        clear(0);

// Want to insert with assets shared with the master EDL.
        insert(start, 
                        file,
                        edit_labels,
                        edit_plugins,
                        edl);

        return 0;
}

// For editing use insertion point position
void MWindow::paste()
{

        double start = edl->local_session->get_selectionstart();
        double end = edl->local_session->get_selectionend();
        int64_t len = gui->get_clipboard()->clipboard_len(SECONDARY_SELECTION);

        if(len)
        {
                char *string = new char[len + 1];



                gui->get_clipboard()->from_clipboard(string, 
                        len, 
                        SECONDARY_SELECTION);
                FileXML file;
                file.read_from_string(string);




                clear(0);

                insert(start, 
                        &file, 
                        edl->session->labels_follow_edits, 
                        edl->session->plugins_follow_edits);

                edl->optimize();


                delete [] string;



                save_backup();


                undo->update_undo(_("paste"), LOAD_EDITS | LOAD_TIMEBAR);
                restart_brender();
                update_plugin_guis();
                gui->update(1, 2, 1, 1, 0, 1, 0);
                awindow->gui->async_update_assets();
                sync_parameters(CHANGE_EDL);
        }

}

int MWindow::paste_assets(double position, Track *dest_track, int overwrite)
{
        int result = 0;




        if(session->drag_assets->total)
        {
                load_assets(session->drag_assets, 
                        position, 
                        LOAD_PASTE,
                        dest_track, 
                        0,
                        edl->session->labels_follow_edits, 
                        edl->session->plugins_follow_edits,
                        overwrite);
                result = 1;
        }


        if(session->drag_clips->total)
        {
                paste_edls(session->drag_clips, 
                        LOAD_PASTE, 
                        dest_track,
                        position, 
                        edl->session->labels_follow_edits, 
                        edl->session->plugins_follow_edits,
                        overwrite); // o
                result = 1;
        }


        save_backup();

        undo->update_undo(_("paste assets"), LOAD_EDITS);
        restart_brender();
        gui->update(1, 
                2,
                1,
                0,
                0,
                1,
                0);
        sync_parameters(CHANGE_EDL);
        return result;
}

void MWindow::load_assets(ArrayList<Asset*> *new_assets, 
        double position, 
        int load_mode,
        Track *first_track,
        RecordLabels *labels,
        int edit_labels,
        int edit_plugins,
        int overwrite)
{
//printf("MWindow::load_assets 1\n");
        if(position < 0) position = edl->local_session->get_selectionstart();

        ArrayList<EDL*> new_edls;
        for(int i = 0; i < new_assets->total; i++)
        {
                remove_asset_from_caches(new_assets->values[i]);
                EDL *new_edl = new EDL;
                new_edl->create_objects();
                new_edl->copy_session(edl);
                new_edls.append(new_edl);


//printf("MWindow::load_assets 2 %d %d\n", new_assets->values[i]->audio_length, new_assets->values[i]->video_length);
                asset_to_edl(new_edl, new_assets->values[i]);


                if(labels)
                        for(RecordLabel *label = labels->first; label; label = label->next)
                        {
                                new_edl->labels->toggle_label(label->position, label->position);
                        }
        }
//printf("MWindow::load_assets 3\n");

        paste_edls(&new_edls, 
                load_mode, 
                first_track,
                position,
                edit_labels,
                edit_plugins,
                overwrite);
//printf("MWindow::load_assets 4\n");


        save_backup();
        new_edls.remove_all_objects();

}

int MWindow::paste_automation()
{
        int64_t len = gui->get_clipboard()->clipboard_len(SECONDARY_SELECTION);

        if(len)
        {
                char *string = new char[len + 1];
                gui->get_clipboard()->from_clipboard(string, 
                        len, 
                        SECONDARY_SELECTION);
                FileXML file;
                file.read_from_string(string);

                edl->tracks->clear_automation(edl->local_session->get_selectionstart(), 
                        edl->local_session->get_selectionend()); 
                edl->tracks->paste_automation(edl->local_session->get_selectionstart(), 
                        &file,
                        0); 
                save_backup();
                undo->update_undo(_("paste keyframes"), LOAD_AUTOMATION);
                delete [] string;


                restart_brender();
                update_plugin_guis();
                gui->canvas->draw_overlays();
                gui->canvas->flash();
                sync_parameters(CHANGE_PARAMS);
                gui->patchbay->update();
                cwindow->update(1, 0, 0);
        }

        return 0;
}

int MWindow::paste_default_keyframe()
{
        int64_t len = gui->get_clipboard()->clipboard_len(SECONDARY_SELECTION);

        if(len)
        {
                char *string = new char[len + 1];
                gui->get_clipboard()->from_clipboard(string, 
                        len, 
                        SECONDARY_SELECTION);
                FileXML file;
                file.read_from_string(string);
                edl->tracks->paste_default_keyframe(&file); 
                undo->update_undo(_("paste default keyframe"), LOAD_AUTOMATION);


                restart_brender();
                update_plugin_guis();
                gui->canvas->draw_overlays();
                gui->canvas->flash();
                sync_parameters(CHANGE_PARAMS);
                gui->patchbay->update();
                cwindow->update(1, 0, 0);
                delete [] string;
                save_backup();
        }

        return 0;
}


// Insert edls with project deletion and index file generation.
int MWindow::paste_edls(ArrayList<EDL*> *new_edls, 
        int load_mode, 
        Track *first_track,
        double current_position,
        int edit_labels,
        int edit_plugins,
        int overwrite)
{

        ArrayList<Track*> destination_tracks;
        int need_new_tracks = 0;

        if(!new_edls->total) return 0;


SET_TRACE
        double original_length = edl->tracks->total_playable_length();
SET_TRACE
        double original_preview_end = edl->local_session->preview_end;
SET_TRACE

// Delete current project
        if(load_mode == LOAD_REPLACE ||
                load_mode == LOAD_REPLACE_CONCATENATE)
        {
                reset_caches();

                edl->save_defaults(defaults);

                hide_plugins();

                delete edl;

                edl = new EDL;

                edl->create_objects();

                edl->copy_session(new_edls->values[0]);

                gui->mainmenu->update_toggles(0);


                gui->unlock_window();

                gwindow->gui->update_toggles(1);

                gui->lock_window("MWindow::paste_edls");


// Insert labels for certain modes constitutively
                edit_labels = 1;
                edit_plugins = 1;
// Force reset of preview
                original_length = 0;
                original_preview_end = -1;
        }

SET_TRACE


SET_TRACE
// Create new tracks in master EDL
        if(load_mode == LOAD_REPLACE || 
                load_mode == LOAD_REPLACE_CONCATENATE ||
                load_mode == LOAD_NEW_TRACKS)
        {

                need_new_tracks = 1;
                for(int i = 0; i < new_edls->total; i++)
                {
                        EDL *new_edl = new_edls->values[i];
                        for(Track *current = new_edl->tracks->first;
                                current;
                                current = NEXT)
                        {
                                if(current->data_type == TRACK_VIDEO)
                                {
                                        edl->tracks->add_video_track(0, 0);
                                        if(current->draw) edl->tracks->last->draw = 1;
                                        destination_tracks.append(edl->tracks->last);
                                }
                                else
                                if(current->data_type == TRACK_AUDIO)
                                {
                                        edl->tracks->add_audio_track(0, 0);
                                        destination_tracks.append(edl->tracks->last);
                                }
                                edl->session->highlighted_track = edl->tracks->total() - 1;
                        }

// Base track count on first EDL only for concatenation
                        if(load_mode == LOAD_REPLACE_CONCATENATE) break;
                }

        }
        else
// Recycle existing tracks of master EDL
        if(load_mode == LOAD_CONCATENATE || load_mode == LOAD_PASTE)
        {

// The point of this is to shift forward labels after the selection so they can
// then be shifted back to their original locations without recursively
// shifting back every paste.
                if(load_mode == LOAD_PASTE && edl->session->labels_follow_edits)
                        edl->labels->clear(edl->local_session->get_selectionstart(),
                                                edl->local_session->get_selectionend(),
                                                1);
        
                Track *current = first_track ? first_track : edl->tracks->first;
                for( ; current; current = NEXT)
                {
                        if(current->record)
                        {
                                destination_tracks.append(current);

// This should be done in the caller so we don't get recursive clear disease.
//                              if(load_mode == LOAD_PASTE)
//                                      current->clear(edl->local_session->get_selectionstart(),
//                                              edl->local_session->get_selectionend(),
//                                              1,
//                                              edl->session->labels_follow_edits, 
//                                              edl->session->plugins_follow_edits,
//                                              1);
                        }
                }

        }




        int destination_track = 0;
        double *paste_position = new double[destination_tracks.total];



SET_TRACE


// Iterate through the edls
        for(int i = 0; i < new_edls->total; i++)
        {

                EDL *new_edl = new_edls->values[i];
SET_TRACE
                double edl_length = new_edl->local_session->clipboard_length ?
                        new_edl->local_session->clipboard_length :
                        new_edl->tracks->total_length();
// printf("MWindow::paste_edls 2\n");
// new_edl->dump();

SET_TRACE



// Resample EDL to master rates
                new_edl->resample(new_edl->session->sample_rate, 
                        edl->session->sample_rate, 
                        TRACK_AUDIO);
                new_edl->resample(new_edl->session->frame_rate, 
                        edl->session->frame_rate, 
                        TRACK_VIDEO);

SET_TRACE



// Add assets and prepare index files
                for(Asset *new_asset = new_edl->assets->first;
                        new_asset;
                        new_asset = new_asset->next)
                {
                        mainindexes->add_next_asset(0, new_asset);
                }
SET_TRACE
// Capture index file status from mainindex test
                edl->update_assets(new_edl);

SET_TRACE


// Get starting point of insertion.  Need this to paste labels.
                switch(load_mode)
                {
                        case LOAD_REPLACE:
                        case LOAD_NEW_TRACKS:
                                current_position = 0;
                                break;

                        case LOAD_CONCATENATE:
                        case LOAD_REPLACE_CONCATENATE:
                                destination_track = 0;
                                if(destination_tracks.total)
                                        current_position = destination_tracks.values[0]->get_length();
                                else
                                        current_position = 0;
                                break;

                        case LOAD_PASTE:
                                destination_track = 0;
                                if(i == 0)
                                {
                                        for(int j = 0; j < destination_tracks.total; j++)
                                        {
                                                paste_position[j] = (current_position >= 0) ? 
                                                        current_position :
                                                        edl->local_session->get_selectionstart();
                                        }
                                }
                                break;

                        case LOAD_RESOURCESONLY:
                                edl->add_clip(new_edl);
                                break;
                }




SET_TRACE

// Insert edl
                if(load_mode != LOAD_RESOURCESONLY)
                {
// Insert labels
//printf("MWindow::paste_edls %f %f\n", current_position, edl_length);
                        if(load_mode == LOAD_PASTE)
                                edl->labels->insert_labels(new_edl->labels, 
                                        destination_tracks.total ? paste_position[0] : 0.0,
                                        edl_length,
                                        edit_labels);
                        else
                                edl->labels->insert_labels(new_edl->labels, 
                                        current_position,
                                        edl_length,
                                        edit_labels);

                        for(Track *new_track = new_edl->tracks->first; 
                                new_track; 
                                new_track = new_track->next)
                        {
// Get destination track of same type as new_track
                                for(int k = 0; 
                                        k < destination_tracks.total &&
                                        destination_tracks.values[destination_track]->data_type != new_track->data_type;
                                        k++, destination_track++)
                                {
                                        if(destination_track >= destination_tracks.total - 1)
                                                destination_track = 0;
                                }

// Insert data into destination track
                                if(destination_track < destination_tracks.total &&
                                        destination_tracks.values[destination_track]->data_type == new_track->data_type)
                                {
                                        Track *track = destination_tracks.values[destination_track];

// Replace default keyframes if first EDL and new tracks were created.
// This means data copied from one track and pasted to another won't retain
// the camera position unless it's a keyframe.  If it did, previous data in the
// track might get unknowingly corrupted.  Ideally we would detect when differing
// default keyframes existed and create discrete keyframes for both.
                                        int replace_default = (i == 0) && need_new_tracks;

//printf("MWindow::paste_edls 1 %d\n", replace_default);
// Insert new track at current position
                                        switch(load_mode)
                                        {
                                                case LOAD_REPLACE_CONCATENATE:
                                                case LOAD_CONCATENATE:
                                                        current_position = track->get_length();
                                                        break;

                                                case LOAD_PASTE:
                                                        current_position = paste_position[destination_track];
                                                        paste_position[destination_track] += new_track->get_length();
                                                        break;
                                        }
                                        if (overwrite)
                                                track->clear(current_position, 
                                                                current_position + new_track->get_length(), 
                                                                1, // edit edits
                                                                edit_labels,
                                                                edit_plugins, 
                                                                1, // convert units
                                                                0); // trim edits


                                        track->insert_track(new_track, 
                                                current_position, 
                                                replace_default,
                                                edit_plugins);
                                }

// Get next destination track
                                destination_track++;
                                if(destination_track >= destination_tracks.total)
                                        destination_track = 0;
                        }
                }

SET_TRACE
                if(load_mode == LOAD_PASTE)
                        current_position += edl_length;
        }


// Move loading of clips and vwindow to the end - this fixes some
// strange issue, for index not being shown
// Assume any paste operation from the same EDL won't contain any clips.
// If it did it would duplicate every clip here.
        for(int i = 0; i < new_edls->total; i++)
        {
                EDL *new_edl = new_edls->values[i];

                for(int j = 0; j < new_edl->clips.total; j++)
                {
                        edl->add_clip(new_edl->clips.values[j]);
                }

                if(new_edl->vwindow_edl)
                {
                        if(edl->vwindow_edl) delete edl->vwindow_edl;
                        edl->vwindow_edl = new EDL(edl);
                        edl->vwindow_edl->create_objects();
                        edl->vwindow_edl->copy_all(new_edl->vwindow_edl);
                }
        }


SET_TRACE
        if(paste_position) delete [] paste_position;


SET_TRACE
// This is already done in load_filenames and everything else that uses paste_edls
//      update_project(load_mode);

// Fix preview range
        if(EQUIV(original_length, original_preview_end))
        {
                edl->local_session->preview_end = edl->tracks->total_playable_length();
        }


SET_TRACE
// Start examining next batch of index files
        mainindexes->start_build();
SET_TRACE


// Don't save a backup after loading since the loaded file is on disk already.


        return 0;
}

void MWindow::paste_silence()
{
        double start = edl->local_session->get_selectionstart();
        double end = edl->local_session->get_selectionend();
        edl->paste_silence(start, 
                end, 
                edl->session->labels_follow_edits, 
                edl->session->plugins_follow_edits);
        edl->optimize();
        save_backup();
        undo->update_undo(_("silence"), LOAD_EDITS | LOAD_TIMEBAR);

        update_plugin_guis();
        restart_brender();
        gui->update(1, 2, 1, 1, 1, 1, 0);
        cwindow->update(1, 0, 0, 0, 1);
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                                                        CHANGE_EDL,
                                                        edl,
                                                        1);
}

void MWindow::paste_transition()
{
// Only the first transition gets dropped.
        PluginServer *server = session->drag_pluginservers->values[0];
        if(server->audio)
                strcpy(edl->session->default_atransition, server->title);
        else
                strcpy(edl->session->default_vtransition, server->title);

        edl->tracks->paste_transition(server, session->edit_highlighted);
        save_backup();
        undo->update_undo(_("transition"), LOAD_EDITS);

        if(server->video) restart_brender();
        sync_parameters(CHANGE_ALL);
}

void MWindow::paste_transition_cwindow(Track *dest_track)
{
        PluginServer *server = session->drag_pluginservers->values[0];
        edl->tracks->paste_video_transition(server, 1);
        save_backup();
        undo->update_undo(_("transition"), LOAD_EDITS);
        restart_brender();
        gui->update(0, 1, 0, 0, 0, 0, 0);
        sync_parameters(CHANGE_ALL);
}

void MWindow::paste_audio_transition()
{
        PluginServer *server = scan_plugindb(edl->session->default_atransition,
                TRACK_AUDIO);
        if(!server)
        {
                char string[BCTEXTLEN];
                sprintf(string, _("No default transition %s found."), edl->session->default_atransition);
                gui->show_message(string);
                return;
        }

        edl->tracks->paste_audio_transition(server);
        save_backup();
        undo->update_undo(_("transition"), LOAD_EDITS);

        sync_parameters(CHANGE_ALL);
        gui->update(0, 1, 0, 0, 0, 0, 0);
}

void MWindow::paste_video_transition()
{
        PluginServer *server = scan_plugindb(edl->session->default_vtransition,
                TRACK_VIDEO);
        if(!server)
        {
                char string[BCTEXTLEN];
                sprintf(string, _("No default transition %s found."), edl->session->default_vtransition);
                gui->show_message(string);
                return;
        }


        edl->tracks->paste_video_transition(server);
        save_backup();
        undo->update_undo(_("transition"), LOAD_EDITS);

        sync_parameters(CHANGE_ALL);
        restart_brender();
        gui->update(0, 1, 0, 0, 0, 0, 0);
}


void MWindow::redo_entry(BC_WindowBase *calling_window_gui)
{

        calling_window_gui->unlock_window();

        cwindow->playback_engine->que->send_command(STOP,
                CHANGE_NONE, 
                0,
                0);
        vwindow->playback_engine->que->send_command(STOP,
                CHANGE_NONE, 
                0,
                0);
        cwindow->playback_engine->interrupt_playback(0);
        vwindow->playback_engine->interrupt_playback(0);


        cwindow->gui->lock_window("MWindow::redo_entry");
        vwindow->gui->lock_window("MWindow::undo_entry 2");
        gui->lock_window();

        undo->redo(); 

        save_backup();
        update_plugin_states();
        update_plugin_guis();
        restart_brender();
        gui->update(1, 2, 1, 1, 1, 1, 1);
        cwindow->update(1, 1, 1, 1, 1);

        if (calling_window_gui != cwindow->gui) 
                cwindow->gui->unlock_window();
        if (calling_window_gui != gui)
                gui->unlock_window();
        if (calling_window_gui != vwindow->gui)
                vwindow->gui->unlock_window();

        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                           CHANGE_ALL,
                           edl,
                           1);
        
}


void MWindow::resize_track(Track *track, int w, int h)
{
// We have to move all maskpoints so they do not move in relation to image areas
        ((MaskAutos*)track->automation->autos[AUTOMATION_MASK])->translate_masks(
                (w - track->track_w) / 2, 
                (h - track->track_h) / 2);
        track->track_w = w;
        track->track_h = h;
        undo->update_undo(_("resize track"), LOAD_ALL);
        save_backup();

        restart_brender();
        sync_parameters(CHANGE_EDL);
}


class InPointUndoItem : public UndoStackItem
{
public:
        InPointUndoItem(double old_position, double new_position, EDL *edl);
        void undo();
        int get_size();
private:
        double old_position;
        double new_position;
        EDL *edl;
};

InPointUndoItem::InPointUndoItem(
      double old_position, double new_position, EDL *edl)
{
   set_description(_("in point"));
   this->old_position = old_position;
   this->new_position = new_position;
   this->edl = edl;
}

void InPointUndoItem::undo()
{
   edl->set_inpoint(old_position);
// prepare to undo the undo
        double tmp = new_position;
        new_position = old_position;
        old_position = tmp;
}

int InPointUndoItem::get_size()
{
   return 20;
}

void MWindow::set_inpoint(int is_mwindow)
{
   InPointUndoItem *undo_item;

   undo_item = new InPointUndoItem(edl->local_session->get_inpoint(),
         edl->local_session->get_selectionstart(1), edl);
   undo->push_undo_item(undo_item);

        edl->set_inpoint(edl->local_session->get_selectionstart(1));
        save_backup();

        if(!is_mwindow)
        {
                gui->lock_window("MWindow::set_inpoint 1");
        }
        gui->timebar->update();
        gui->flush();
        if(!is_mwindow)
        {
                gui->unlock_window();
        }

        if(is_mwindow)
        {
                cwindow->gui->lock_window("MWindow::set_inpoint 2");
        }
        cwindow->gui->timebar->update();
        cwindow->gui->flush();
        if(is_mwindow)
        {
                cwindow->gui->unlock_window();
        }
}

class OutPointUndoItem : public UndoStackItem
{
public:
        OutPointUndoItem(double old_position, double new_position, EDL *edl);
        void undo();
        int get_size();
private:
        double old_position;
        double new_position;
        EDL *edl;
};

OutPointUndoItem::OutPointUndoItem(
      double old_position, double new_position, EDL *edl)
{
   set_description(_("out point"));
   this->old_position = old_position;
   this->new_position = new_position;
   this->edl = edl;
}

void OutPointUndoItem::undo()
{
   edl->set_outpoint(old_position);
// prepare to undo the undo
        double tmp = new_position;
        new_position = old_position;
        old_position = tmp;
}

int OutPointUndoItem::get_size()
{
   return 20;
}

void MWindow::set_outpoint(int is_mwindow)
{
   OutPointUndoItem *undo_item;

   undo_item = new OutPointUndoItem(edl->local_session->get_outpoint(),
         edl->local_session->get_selectionend(1), edl);
   undo->push_undo_item(undo_item);

        edl->set_outpoint(edl->local_session->get_selectionend(1));
        save_backup();

        if(!is_mwindow)
        {
                gui->lock_window("MWindow::set_outpoint 1");
        }
        gui->timebar->update();
        gui->flush();
        if(!is_mwindow)
        {
                gui->unlock_window();
        }

        if(is_mwindow)
        {
                cwindow->gui->lock_window("MWindow::set_outpoint 2");
        }
        cwindow->gui->timebar->update();
        cwindow->gui->flush();
        if(is_mwindow)
        {
                cwindow->gui->unlock_window();
        }
}

void MWindow::splice(EDL *source)
{
        FileXML file;

        source->copy(source->local_session->get_selectionstart(), 
                source->local_session->get_selectionend(), 
                1,
                0,
                0,
                &file,
                plugindb,
                "",
                1);



//file.dump();
        double start = edl->local_session->get_selectionstart();
        double end = edl->local_session->get_selectionend();
        double source_start = source->local_session->get_selectionstart();
        double source_end = source->local_session->get_selectionend();

        paste(start, 
                start, 
                &file,
                edl->session->labels_follow_edits,
                edl->session->plugins_follow_edits);

// Position at end of clip
        edl->local_session->set_selectionstart(start + 
                source_end - 
                source_start);
        edl->local_session->set_selectionend(start + 
                source_end - 
                source_start);

        save_backup();
        undo->update_undo(_("splice"), LOAD_EDITS | LOAD_TIMEBAR);
        update_plugin_guis();
        restart_brender();
        gui->update(1, 1, 1, 1, 0, 1, 0);
        sync_parameters(CHANGE_EDL);
}

void MWindow::to_clip()
{
        FileXML file;
        double start, end;
        
        start = edl->local_session->get_selectionstart();
        end = edl->local_session->get_selectionend();

        if(EQUIV(end, start)) 
        {
                start = 0;
                end = edl->tracks->total_length();
        }

// Don't copy all since we don't want the clips twice.
        edl->copy(start, 
                end, 
                0,
                0,
                0,
                &file,
                plugindb,
                "",
                1);


        EDL *new_edl = new EDL(edl);
        new_edl->create_objects();
        new_edl->load_xml(plugindb, &file, LOAD_ALL);
        sprintf(new_edl->local_session->clip_title, _("Clip %d"), session->clip_number++);
        char string[BCTEXTLEN];
        Units::totext(string, 
                        end - start, 
                        edl->session->time_format, 
                        edl->session->sample_rate, 
                        edl->session->frame_rate,
                        edl->session->frames_per_foot);

        sprintf(new_edl->local_session->clip_notes, _("%s\nCreated from main window"), string);

        new_edl->local_session->set_selectionstart(0);
        new_edl->local_session->set_selectionend(0);

        awindow->clip_edit->create_clip(new_edl);
        save_backup();
}

class LabelUndoItem : public UndoStackItem
{
public:
      LabelUndoItem(double position1, double position2, EDL *edl);
      void undo();
      int get_size();
private:
      double position1;
      double position2;
      EDL *edl;
};

LabelUndoItem::LabelUndoItem(
      double position1, double position2, EDL *edl)
{
   set_description(_("label"));
   this->position1 = position1;
   this->position2 = position2;
   this->edl = edl;
}

void LabelUndoItem::undo()
{
        edl->labels->toggle_label(position1, position2);
}

int LabelUndoItem::get_size()
{
   return 20;
}

int MWindow::toggle_label(int is_mwindow)
{
   LabelUndoItem *undo_item;
        double position1, position2;

        if(cwindow->playback_engine->is_playing_back)
        {
                position1 = position2 = 
                        cwindow->playback_engine->get_tracking_position();
        }
        else
        {
                position1 = edl->local_session->get_selectionstart(1);
                position2 = edl->local_session->get_selectionend(1);
        }

        position1 = edl->align_to_frame(position1, 0);
        position2 = edl->align_to_frame(position2, 0);

//printf("MWindow::toggle_label 1\n");
   undo_item = new LabelUndoItem(position1, position2, edl);
   undo->push_undo_item(undo_item);

        edl->labels->toggle_label(position1, position2);
        save_backup();

        if(!is_mwindow)
        {
                gui->lock_window("MWindow::toggle_label 1");
        }
        gui->timebar->update();
        gui->canvas->activate();
        gui->flush();
        if(!is_mwindow)
        {
                gui->unlock_window();
        }

        if(is_mwindow)
        {
                cwindow->gui->lock_window("MWindow::toggle_label 2");
        }
        cwindow->gui->timebar->update();
        cwindow->gui->flush();
        if(is_mwindow)
        {
                cwindow->gui->unlock_window();
        }

        return 0;
}

void MWindow::trim_selection()
{


        edl->trim_selection(edl->local_session->get_selectionstart(), 
                edl->local_session->get_selectionend(), 
                edl->session->labels_follow_edits, 
                edl->session->plugins_follow_edits);

        save_backup();
        undo->update_undo(_("trim selection"), LOAD_EDITS | LOAD_TIMEBAR);
        update_plugin_guis();
        gui->update(1, 2, 1, 1, 1, 1, 0);
        restart_brender();
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                                                        CHANGE_EDL,
                                                        edl,
                                                        1);
}



void MWindow::undo_entry(BC_WindowBase *calling_window_gui)
{
//      if(is_mwindow)
//              gui->unlock_window();
//      else
//              cwindow->gui->unlock_window();
        calling_window_gui->unlock_window();

        cwindow->playback_engine->que->send_command(STOP,
                CHANGE_NONE, 
                0,
                0);
        vwindow->playback_engine->que->send_command(STOP,
                CHANGE_NONE, 
                0,
                0);
        cwindow->playback_engine->interrupt_playback(0);
        vwindow->playback_engine->interrupt_playback(0);

        cwindow->gui->lock_window("MWindow::undo_entry 1");
        vwindow->gui->lock_window("MWindow::undo_entry 4");
        gui->lock_window("MWindow::undo_entry 2");

        undo->undo(); 

        save_backup();
        restart_brender();
        update_plugin_states();
        update_plugin_guis();
        gui->update(1, 2, 1, 1, 1, 1, 1);
        cwindow->update(1, 1, 1, 1, 1);

//      if(is_mwindow)
//              cwindow->gui->unlock_window();
//      else
//              gui->unlock_window();
        if (calling_window_gui != cwindow->gui) 
                cwindow->gui->unlock_window();
        if (calling_window_gui != gui)
                gui->unlock_window();
        if (calling_window_gui != vwindow->gui)
                vwindow->gui->unlock_window();
        

        awindow->gui->async_update_assets();
        cwindow->playback_engine->que->send_command(CURRENT_FRAME, 
                           CHANGE_ALL,
                           edl,
                           1);
}



void MWindow::new_folder(char *new_folder)
{
        edl->new_folder(new_folder);
        undo->update_undo(_("new folder"), LOAD_ALL);
        awindow->gui->async_update_assets();
}

void MWindow::delete_folder(char *folder)
{
//      undo->update_undo(_("delete folder"), LOAD_ALL);
}

void MWindow::select_point(double position)
{
        edl->local_session->set_selectionstart(position);
        edl->local_session->set_selectionend(position);

// Que the CWindow
        cwindow->update(1, 0, 0, 0, 1);
        update_plugin_guis();
        gui->patchbay->update();
        gui->cursor->hide(0);
        gui->cursor->draw(1);
        gui->mainclock->update(edl->local_session->get_selectionstart(1));
        gui->zoombar->update();
        gui->canvas->flash();
        gui->flush();
}




void MWindow::map_audio(int pattern)
{
        int current_channel = 0;
        int current_track = 0;
        for(Track *current = edl->tracks->first; current; current = NEXT)
        {
                if(current->data_type == TRACK_AUDIO && 
                        current->record)
                {
                        Autos *pan_autos = current->automation->autos[AUTOMATION_PAN];
                        PanAuto *pan_auto = (PanAuto*)pan_autos->get_auto_for_editing(-1);

                        for(int i = 0; i < MAXCHANNELS; i++)
                        {
                                pan_auto->values[i] = 0.0;
                        }

                        if(pattern == MWindow::AUDIO_1_TO_1)
                        {
                                pan_auto->values[current_channel] = 1.0;
                        }
                        else
                        if(pattern == MWindow::AUDIO_5_1_TO_2)
                        {
                                switch(current_track)
                                {
                                        case 0:
                                                pan_auto->values[0] = 0.5;
                                                pan_auto->values[1] = 0.5;
                                                break;
                                        case 1:
                                                pan_auto->values[0] = 1;
                                                break;
                                        case 2:
                                                pan_auto->values[1] = 1;
                                                break;
                                        case 3:
                                                pan_auto->values[0] = 1;
                                                break;
                                        case 4:
                                                pan_auto->values[1] = 1;
                                                break;
                                        case 5:
                                                pan_auto->values[0] = 0.5;
                                                pan_auto->values[1] = 0.5;
                                                break;
                                }
                        }
                        
                        BC_Pan::calculate_stick_position(edl->session->audio_channels, 
                                edl->session->achannel_positions, 
                                pan_auto->values, 
                                MAX_PAN, 
                                PAN_RADIUS,
                                pan_auto->handle_x,
                                pan_auto->handle_y);
                
                        current_channel++;
                        current_track++;
                        if(current_channel >= edl->session->audio_channels)
                                current_channel = 0;
                }
        }
        undo->update_undo(_("map 1:1"), LOAD_AUTOMATION, 0);
        sync_parameters(CHANGE_PARAMS);
        gui->update(0,
                1,
                0,
                0,
                1,
                0,
                0);
}

---