vtransition.C

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#include "assets.h"
#include "autoconf.h"
#include "bezierautos.h"
#include "cache.h"
#include "edit.h"
#include "edits.h"
#include "filexml.h"
#include "floatautos.h"
#include "mwindow.h"
#include "patch.h"
#include "trackcanvas.h"
#include "tracks.h"
#include "vedit.h"
#include "vedits.h"
#include "vframe.h"
#include "vtrack.h"
#include "datatype.h"

VTrack::VTrack(MWindow *mwindow, Tracks *tracks) : Track(mwindow, tracks)
{
        data_type = TRACK_VIDEO;
}

VTrack::~VTrack()
{
        delete edits;
        delete camera_autos;
        delete projector_autos;
}

int VTrack::create_derived_objs(int flash)
{
        int i;
        edits = new VEdits(mwindow, this);
        camera_autos = new BezierAutos(this, 
                                                                        WHITE, 
                                                                        0, 
                                                                        0, 
                                                                        1, 
                                                                        mwindow->track_w,
                                                                        mwindow->track_h);
        
        projector_autos = new BezierAutos(this,
                                                                        WHITE,
                                                                        0,
                                                                        0,
                                                                        1,
                                                                        mwindow->output_w,
                                                                        mwindow->output_h);
        
        fade_autos = new FloatAutos(this, LTGREY, -100, 100);
        fade_autos->create_objects();

        if(mwindow->gui)
        {
                if(mwindow->session->tracks_vertical)
                draw(pixel, mwindow->zoom_track, 0, tracks->canvas->h, flash);
                else
                draw(0, tracks->canvas->w, pixel, mwindow->zoom_track, flash);
        }
}


int VTrack::save_derived(FileXML *xml)
{
        edits->save(xml);

        if(camera_autos->total())
        {
                xml->tag.set_title("CAMERAAUTOS");
                xml->append_tag();
                xml->append_newline();
                camera_autos->save(xml);
                xml->tag.set_title("/CAMERAAUTOS");
                xml->append_tag();
                xml->append_newline();
        }

        if(projector_autos->total())
        {
                xml->tag.set_title("PROJECTORAUTOS");
                xml->append_tag();
                xml->append_newline();
                projector_autos->save(xml);
                xml->tag.set_title("/PROJECTORAUTOS");
                xml->append_tag();
                xml->append_newline();
        }
}

int VTrack::load_derived(FileXML *xml, int automation_only, int edits_only, int load_all, int &output_channel)
{
        if(xml->tag.title_is("CAMERAAUTOS"))
        {
                camera_autos->load(xml, "/CAMERAAUTOS");
        }
        else
        if(xml->tag.title_is("PROJECTORAUTOS"))
        {
                projector_autos->load(xml, "/PROJECTORAUTOS");
        }
}

long VTrack::length()
{
        return tosamples(edits->end(), mwindow->sample_rate, mwindow->frame_rate);
}

int VTrack::get_dimensions(float &view_start, float &view_units, float &zoom_units)
{
        view_start = toframes(mwindow->view_start, mwindow->sample_rate, mwindow->frame_rate);
        view_units = toframes(tracks->view_samples(), mwindow->sample_rate, mwindow->frame_rate);
        zoom_units = toframes(mwindow->zoom_sample, mwindow->sample_rate, mwindow->frame_rate);
}

long VTrack::samples_to_units(long &samples)
{
        samples = toframes_round(samples, mwindow->sample_rate, mwindow->frame_rate);
}

int VTrack::copy_derived(long start, long end, FileXML *xml)
{
// automation is copied in the Track::copy
}

int VTrack::copy_automation_derived(AutoConf *auto_conf, long start, long end, FileXML *xml)
{
// used for copying only automation
        if(auto_conf->camera)
        {
                xml->tag.set_title("CAMERAAUTOS");
                xml->append_tag();

                camera_autos->copy(start, end, xml, 1);

                xml->tag.set_title("/CAMERAAUTOS");
                xml->append_tag();
                xml->append_newline();
        }

        if(auto_conf->projector)
        {
                xml->tag.set_title("PROJECTORAUTOS");
                xml->append_tag();

                projector_autos->copy(start, end, xml, 1);

                xml->tag.set_title("/PROJECTORAUTOS");
                xml->append_tag();
                xml->append_newline();
        }
}

int VTrack::paste_derived(long start, long end, long total_length, FileXML *xml, int &current_channel)
{
        if(xml->tag.title_is("CAMERAAUTOS"))
        {
                camera_autos->paste(start, end, total_length, xml, "/CAMERAAUTOS", 1);
        }
        else
        if(xml->tag.title_is("PROJECTORAUTOS"))
        {
                projector_autos->paste(start, end, total_length, xml, "/PROJECTORAUTOS", 1);
        }
}

int VTrack::paste_output(long startproject, long endproject, long startsource, long endsource, int layer, Asset *asset)
{
        int result = 0;

//printf("VTrack::paste_output startproject %ld endproject %ld\n", startproject, endproject);
        //Track::samples_to_units(startproject, endproject);

        result = ((VEdits*)edits)->paste_edit(startproject, 
                                                endproject, 
                                                startsource, 
                                                endsource - startsource, 
                                                layer, 
                                                0,
                                                0,
                                                1,
                                                asset);

        //if(!result && mwindow->autos_follow_edits)
        //{
        //      paste_auto_silence(startproject, endproject);
        //}
        return result;
}

int VTrack::clear_derived(long start, long end)
{
        if(mwindow->autos_follow_edits)
        {
                camera_autos->clear(start, end, mwindow->autos_follow_edits, 1);
                projector_autos->clear(start, end, mwindow->autos_follow_edits, 1);
        }
}

int VTrack::paste_automation_derived(long start, long end, long total_length, FileXML *xml, int shift_autos, int &current_pan)
{
// only used for pasting automation
        camera_autos->paste(start, end, total_length, xml, "/CAMERAUTOS", 1, shift_autos);
        projector_autos->paste(start, end, total_length, xml, "/PROJECTORAUTOS", 1, shift_autos);
}

int VTrack::clear_automation_derived(AutoConf *auto_conf, long start, long end, int shift_autos)
{
        if(auto_conf->camera)
                camera_autos->clear(start, end, mwindow->autos_follow_edits, shift_autos);

        if(auto_conf->projector)
                projector_autos->clear(start, end, mwindow->autos_follow_edits, shift_autos);
}

int VTrack::paste_auto_silence_derived(long start, long end)
{
        camera_autos->paste_silence(start, end);
        projector_autos->paste_silence(start, end);
}

int VTrack::draw_autos_derived(float view_start, float zoom_units, AutoConf *auto_conf)
{
                if(auto_conf->camera) 
                        camera_autos->draw(tracks->canvas, 
                                                        pixel,
                                                        mwindow->zoom_track, 
                                                        zoom_units, 
                                                        view_start, 
                                                        mwindow->session->tracks_vertical);

                if(auto_conf->projector)
                        projector_autos->draw(tracks->canvas, 
                                                        pixel,
                                                        mwindow->zoom_track, 
                                                        zoom_units, 
                                                        view_start, 
                                                        mwindow->session->tracks_vertical);
}

int VTrack::select_translation(int cursor_x, int cursor_y)
{
// cursor position is relative to time
        int result = 0;
        float view_start, view_units, zoom_units;
        get_dimensions(view_start, view_units, zoom_units);

        if(cursor_y > pixel && cursor_y < pixel + mwindow->zoom_track)
        {
                for(Edit* current = edits->first; current && !result; current = NEXT)
                {
                        result = ((VEdit*)current)->select_translation(cursor_x, cursor_y, view_start, zoom_units);
                }
        }
        return result;
}

int VTrack::update_translation(int cursor_x, int cursor_y, int shift_down)
{
        int result = 0;
        float view_start, view_units, zoom_units;
        get_dimensions(view_start, view_units, zoom_units);

        for(Edit* current = edits->first; current && !result; current = NEXT)
        {
                result = ((VEdit*)current)->update_translation(cursor_x, cursor_y, shift_down, view_start, zoom_units);
        }
        return result;
}

int VTrack::end_translation()
{
        int result = 0;
        for(Edit* current = edits->first; current && !result; current = NEXT)
        {
                result = ((VEdit*)current)->end_translation();
        }
        return result;
}

int VTrack::reset_translation(long start, long end)
{
        int result = 0;
        Track::samples_to_units(start, end);
        for(Edit* current = edits->first; current && !result; current = NEXT)
        {
                result = ((VEdit*)current)->reset_translation(start, end);
        }
        return result;
}


int VTrack::select_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y)
{
        int result = 0;

        if(auto_conf->camera) 
                result = camera_autos->select_auto(tracks->canvas, 
                                                                                pixel, 
                                                                                mwindow->zoom_track, 
                                                                                zoom_units, 
                                                                                view_start, 
                                                                                cursor_x, 
                                                                                cursor_y, 
                                                                                tracks->canvas->shift_down(),
                                                                                tracks->canvas->ctrl_down(),
                                                                                tracks->canvas->get_buttonpress(),
                                                                                mwindow->session->tracks_vertical);

        if(auto_conf->projector && !result) 
                result = projector_autos->select_auto(tracks->canvas, 
                                                                                pixel, 
                                                                                mwindow->zoom_track, 
                                                                                zoom_units, 
                                                                                view_start, 
                                                                                cursor_x, 
                                                                                cursor_y, 
                                                                                tracks->canvas->shift_down(),
                                                                                tracks->canvas->ctrl_down(),
                                                                                tracks->canvas->get_buttonpress(),
                                                                                mwindow->session->tracks_vertical);

        return result;
}


int VTrack::move_auto_derived(float zoom_units, float view_start, AutoConf *auto_conf, int cursor_x, int cursor_y, int shift_down)
{
        int result;
        result = 0;

        if(auto_conf->camera)
                result = camera_autos->move_auto(tracks->canvas, 
                                                                        pixel, 
                                                                        mwindow->zoom_track, 
                                                                        zoom_units, 
                                                                        view_start, 
                                                                        cursor_x, 
                                                                        cursor_y, 
                                                                        shift_down, 
                                                                        mwindow->session->tracks_vertical);

        if(auto_conf->projector && !result)
                result = projector_autos->move_auto(tracks->canvas, 
                                                                        pixel, 
                                                                        mwindow->zoom_track, 
                                                                        zoom_units, 
                                                                        view_start, 
                                                                        cursor_x, 
                                                                        cursor_y, 
                                                                        shift_down, 
                                                                        mwindow->session->tracks_vertical);

        if(result)
        {
                mwindow->tracks->hide_overlays(0);
                draw_clear(0, tracks->canvas->w, 0, tracks->canvas->h, 0);
                draw(0, tracks->canvas->w, 0, tracks->canvas->h, 0);
                mwindow->tracks->show_overlays(0);
        }

        return result;
}

int VTrack::draw_floating_autos_derived(float view_start, float zoom_units, AutoConf *auto_conf, int flash)
{
        if(auto_conf->camera) 
                camera_autos->draw_floating_autos(tracks->canvas, 
                                                                pixel, 
                                                                mwindow->zoom_track, 
                                                                zoom_units, 
                                                                view_start, 
                                                                mwindow->session->tracks_vertical, flash);

        if(auto_conf->projector) 
                projector_autos->draw_floating_autos(tracks->canvas, 
                                                                pixel, 
                                                                mwindow->zoom_track, 
                                                                zoom_units, 
                                                                view_start, 
                                                                mwindow->session->tracks_vertical, flash);
}

int VTrack::release_auto_derived()
{
        int result;
        result = 0;

        result = camera_autos->release_auto();
        if(!result) result = projector_autos->release_auto();
                
        return result;
}

int VTrack::scale_video(float camera_scale, float projector_scale, int *offsets)
{
// Fix the camera.
        for(VEdit *current = (VEdit*)edits->first; current; current = (VEdit*)NEXT)
        {
                current->center_z *= camera_scale;
                current->center_x = -offsets[0];
                current->center_y = -offsets[1];
        }

// Fix the projector.
        projector_autos->scale_video(projector_scale, &offsets[2]);
}

int VTrack::render(VFrame **output, long input_len, long input_position, float step)
{
        BezierAuto *before[4], *after[4];     // for bounding box
        int i;
        for(i = 0; i < 4; i++) { before[i] = 0;  after[i] = 0; }

// clear output buffer
//      for(i = 0; i < input_len; i++)
//      {
//              output[i]->clear_frame();
//      }
        output[0]->clear_frame();

// Render from the last edit to the first edit to accomidate feathering
        for(VEdit *current = (VEdit*)edits->last; current; current = (VEdit*)PREVIOUS)
        {
//if(current == (VEdit*)edits->first || current == (VEdit*)edits->first->next)
//      printf("%d %d %d\n", input_position, current->startproject, current->startproject + current->length);
                if(input_position < current->startproject + current->length + current->feather_right &&
                        input_position >= current->startproject)
                        current->render(output, 
                                input_len, 
                                input_position, 
                                step, 
                                before, 
                                after, 
                                get_patch_of()->automate);
        }
}

int VTrack::get_projection(float &in_x1, float &in_y1, float &in_x2, float &in_y2,
                                        float &out_x1, float &out_y1, float &out_x2, float &out_y2,
                                        int frame_w, int frame_h, long real_position,
                                        BezierAuto **before, BezierAuto **after)
{
        static float center_x, center_y, center_z;
        static float x[4], y[4];

        projector_autos->get_center(center_x, center_y, center_z, (float)real_position, 0, before, after);
        x[0] = y[0] = 0;
        x[1] = frame_w;
        y[1] = frame_h;

        center_x += mwindow->output_w / 2;
        center_y += mwindow->output_h / 2;

        x[2] = center_x - (frame_w / 2) * center_z;
        y[2] = center_y - (frame_h / 2) * center_z;
        x[3] = x[2] + frame_w * center_z;
        y[3] = y[2] + frame_h * center_z;

        if(x[2] < 0)
        {
                x[0] -= x[2] / center_z;
                x[2] = 0;
        }
        if(y[2] < 0)
        {
                y[0] -= y[2] / center_z;
                y[2] = 0;
        }
        if(x[3] > mwindow->output_w)
        {
                x[1] -= (x[3] - mwindow->output_w) / center_z;
                x[3] = mwindow->output_w;
        }
        if(y[3] > mwindow->output_h)
        {
                y[1] -= (y[3] - mwindow->output_h) / center_z;
                y[3] = mwindow->output_h;
        }
        
        in_x1 = x[0];
        in_y1 = y[0];
        in_x2 = x[1];
        in_y2 = y[1];
        out_x1 = x[2];
        out_y1 = y[2];
        out_x2 = x[3];
        out_y2 = y[3];
}

int VTrack::scale_time_derived(float rate_scale, int scale_edits, int scale_autos, long start, long end)
{
        camera_autos->scale_time(rate_scale, scale_edits, scale_autos, start, end);
        projector_autos->scale_time(rate_scale, scale_edits, scale_autos, start, end);
}

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