detect missing transitions, dont draw transitions if show off, obey audio transition...
[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / trackcanvas.C
index dda88761e8547bfc9633e3573a84d938d8ac1689..098090a693c4d419f0ebfbf17b26ebd76fef2981 100644 (file)
@@ -781,7 +781,7 @@ void TrackCanvas::draw_resources(int mode,
 
        if(debug) PRINT_TRACE
        if(mode != IGNORE_THREAD)
-               gui->resource_thread->reset(pane->number);
+               gui->resource_thread->reset(pane->number, indexes_only);
 
 // Search every edit
        for(Track *current = mwindow->edl->tracks->first;
@@ -1658,6 +1658,9 @@ void TrackCanvas::draw_highlighting()
                        }
                        break;
 
+               case DRAG_SPEED:
+                       draw_speed_highlight();
+                       break;
        }
 
        if( draw_box )
@@ -1666,6 +1669,33 @@ void TrackCanvas::draw_highlighting()
        draw_selected_edits(mwindow->edl, 0, 0, GREEN+BLUE, RED);
 }
 
+void TrackCanvas::draw_speed_highlight()
+{
+       FloatAuto *drag_speed = (FloatAuto*)mwindow->session->drag_auto;
+       if( !drag_speed ) return;
+       draw_speed_track(drag_speed->autos->track);
+       ArrayList<Auto*> &speed_gang = *mwindow->session->drag_auto_gang;
+       for( int i=0, sz=speed_gang.size(); i<sz; ++i ) {
+               Track *track = speed_gang[i]->autos->track;
+               if( track->is_hidden() ) continue;
+               draw_speed_track(track);
+       }
+}
+
+void TrackCanvas::draw_speed_track(Track *track)
+{
+       for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
+               int64_t x, y, w, h;
+               edit_dimensions(edit, x, y, w, h);
+               if( !MWindowGUI::visible(x, x + w, 0, get_w()) ) continue;
+               if( !MWindowGUI::visible(y, y + h, 0, get_h()) ) continue;
+               int color = 0xc00cc0;
+               set_color(color);
+               set_opaque();
+               draw_selected(x, y, w, h);
+       }
+}
+
 // x does not reliably draw a really big rectangle
 void TrackCanvas::draw_selected(int x, int y, int w, int h)
 {
@@ -1937,7 +1967,8 @@ void TrackCanvas::draw_inout_points()
 void TrackCanvas::draw_drag_handle()
 {
        if( mwindow->session->current_operation != DRAG_EDITHANDLE2 &&
-           mwindow->session->current_operation != DRAG_PLUGINHANDLE2 ) return;
+           mwindow->session->current_operation != DRAG_PLUGINHANDLE2 &&
+           mwindow->session->current_operation != DRAG_TRANSNHANDLE2 ) return;
        int64_t pixel1 = Units::round(mwindow->session->drag_position *
                mwindow->edl->session->sample_rate /
                mwindow->edl->local_session->zoom_sample -
@@ -1981,7 +2012,10 @@ void TrackCanvas::draw_drag_handle()
                                        idxbl->get_audio_samples() :
                                edit->track->data_type == TRACK_VIDEO ?
                                        idxbl->get_video_frames() : -1;
-                       if( edit->startsource + edit->length >= source_len )
+                       int64_t speed_start = edit->startproject;
+                       int64_t speed_end = speed_start + edit->length;
+                       int64_t speed_length = track->speed_length(speed_start, speed_end);
+                       if( edit->startsource + speed_length >= source_len )
                                can_drag = 0;
                }
                else if( !edit->startsource )
@@ -2017,6 +2051,7 @@ void TrackCanvas::draw_drag_handle()
 void TrackCanvas::draw_transitions()
 {
        int64_t x, y, w, h;
+       if( !mwindow->edl->session->auto_conf->transitions ) return;
 
        for(Track *track = mwindow->edl->tracks->first; track; track = track->next) {
                if( track->is_hidden() ) continue;
@@ -2237,7 +2272,7 @@ int TrackCanvas::do_keyframes(int cursor_x,
                                                        auto_keyframe, grouptype);
 
                                                if( !result && buttonpress && i == AUTOMATION_SPEED )
-                                                       mwindow->speed_after(-1);
+                                                       mwindow->speed_after(-1, 0);
                                                if( result && buttonpress ) {
                                                        int color = GWindowGUI::auto_colors[i];
                                                        mwindow->gui->zoombar->update_autozoom(grouptype, color);
@@ -2457,14 +2492,20 @@ void TrackCanvas::draw_cropped_line(int x1,
 }
 
 
-void TrackCanvas::draw_floatauto(FloatAuto *current, int x, int y,
-               int in_x, int in_y, int out_x, int out_y,
-               int center_pixel, int data_h, int color)
+void TrackCanvas::draw_floatauto(FloatAuto *current,
+               int x_offset, int center_pixel, int data_h, int color,
+               double unit_start, double zoom_units, double yscale,
+               int autogrouptype)
 {
+       double xx, yy;
+       calculate_auto_position(1, &xx, &yy, 0, 0, 0, 0,
+               current, unit_start, zoom_units, yscale, autogrouptype);
+       int x = (int)xx + x_offset;
        int x1 = x - HANDLE_W / 2; // Center
        int x2 = x + HANDLE_W / 2;
-       int y1 = center_pixel + y - HANDLE_H / 2;
-       int y2 = center_pixel + y + HANDLE_H / 2;
+       int y = (int)yy + center_pixel;
+       int y1 = y - HANDLE_H / 2;
+       int y2 = y + HANDLE_H / 2;
        int ymin = center_pixel - data_h / 2;
        int ymax = center_pixel + data_h / 2;
        CLAMP(y1, ymin, ymax);
@@ -2492,13 +2533,22 @@ void TrackCanvas::draw_floatauto(FloatAuto *current, int x, int y,
 // show bezier control points (only) if this
 // floatauto doesn't adjust it's tangents automatically
        if(current->curve_mode != FloatAuto::FREE &&
-          current->curve_mode != FloatAuto::TFREE)
+          current->curve_mode != FloatAuto::TFREE &&
+          current->curve_mode != FloatAuto::BUMP)
                return;
-
-       if(in_x != x)
-               draw_floatauto_ctrlpoint(x, y, in_x, in_y, center_pixel, data_h, color);
-       if(out_x != x)
-               draw_floatauto_ctrlpoint(x, y, out_x, out_y, center_pixel, data_h, color);
+       double in_xx, in_yy, out_xx, out_yy;
+       calculate_auto_position(1, &xx, &yy, &in_xx, &in_yy, 0, 0,
+               current, unit_start, zoom_units, yscale, autogrouptype);
+       int ix = xx, iy = yy, in_x = in_xx, in_y = in_yy;
+       if( in_x != ix )
+               draw_floatauto_ctrlpoint(ix, iy, in_x, in_y, center_pixel, data_h, color);
+       calculate_auto_position(0, &xx, &yy, 0, 0, &out_xx, &out_yy,
+               current, unit_start, zoom_units, yscale, autogrouptype);
+       int ox = xx, oy = yy, out_x = out_xx, out_y = out_yy;
+       if( out_x != ox )
+               draw_floatauto_ctrlpoint(ox, oy, out_x, out_y, center_pixel, data_h, color);
+       if( current->curve_mode == FloatAuto::BUMP && iy != oy )
+               draw_bline(ix, iy+center_pixel, ox, oy+center_pixel);
 }
 
 inline int quantize(float f) { return (int)floor(f + 0.5); }
@@ -2639,16 +2689,21 @@ float TrackCanvas::value_to_percentage(float auto_value, int autogrouptype)
 
 
 
-int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
-       int in_y, int out_x, int out_y, int center_pixel, int data_h,
-       int cursor_x, int cursor_y, int buttonpress, int autogrouptype)
+int TrackCanvas::test_floatauto(FloatAuto *current, int buttonpress,
+               int center_pixel, int data_h, int cursor_x, int cursor_y,
+               double unit_start, double zoom_units, double yscale,
+               int autogrouptype)
 {
        int result = 0;
-
-       int x1 = x - HANDLE_W / 2;
-       int x2 = x + HANDLE_W / 2;
-       int y1 = center_pixel + y - HANDLE_W / 2;
-       int y2 = center_pixel + y + HANDLE_W / 2;
+       double xx, yy, in_xx, in_yy, out_xx, out_yy;
+       calculate_auto_position(1, &xx, &yy, &in_xx, &in_yy, 0, 0,
+               current, unit_start, zoom_units, yscale, autogrouptype);
+       int ix = xx, iy = yy, in_x = in_xx, in_y = in_yy;
+
+       int x1 = ix - HANDLE_W / 2;
+       int x2 = ix + HANDLE_W / 2;
+       int y1 = center_pixel + iy - HANDLE_W / 2;
+       int y2 = center_pixel + iy + HANDLE_W / 2;
        int ymin = center_pixel - data_h/2;
        int ymax = center_pixel + data_h/2;
        CLAMP(y1, ymin, ymax);
@@ -2661,6 +2716,9 @@ int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
        CLAMP(in_y1, ymin, ymax);
        CLAMP(in_y2, ymin, ymax);
 
+       calculate_auto_position(0, &xx, &yy, 0, 0, &out_xx, &out_yy,
+               current, unit_start, zoom_units, yscale, autogrouptype);
+       int ox = xx, oy = yy, out_x = out_xx, out_y = out_yy;
        int out_x1 = out_x - HANDLE_W / 2;
        int out_x2 = out_x + HANDLE_W / 2;
        int out_y1 = center_pixel + out_y - HANDLE_W / 2;
@@ -2718,13 +2776,14 @@ int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
                float lever = 0.0; // we use the tangent as a draggable lever. 1.0 is at the ctrl point
 
 // Test in control
-               if( in_x != x && current->position > 0 &&
+               if( in_x != ix && current->position > 0 &&
                        (FloatAuto::FREE == current->curve_mode ||
-                        FloatAuto::TFREE == current->curve_mode))
+                        FloatAuto::TFREE == current->curve_mode ||
+                        FloatAuto::BUMP == current->curve_mode))
 // act on in control handle only if
 // tangent is significant and is editable (not automatically choosen)
                {
-                       lever = test_curve_line(x, y, in_x, in_y, cursor_x, cursor_y-center_pixel);
+                       lever = test_curve_line(ix, iy, in_x, in_y, cursor_x, cursor_y-center_pixel);
  // either cursor in ctrl-point handle or cursor on tangent line
                        if( WITHIN(in_x1,in_x2,in_y1,in_y2) || lever > 0.0 ) {
                                result = 1;
@@ -2740,12 +2799,13 @@ int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
                }
 
 // Test out control
-               if(out_x != x &&
+               if(out_x != ox &&
                        (FloatAuto::FREE == current->curve_mode ||
-                        FloatAuto::TFREE == current->curve_mode))
+                        FloatAuto::TFREE == current->curve_mode ||
+                        FloatAuto::BUMP == current->curve_mode))
 // act on out control only if tangent is significant and is editable
                {
-                       lever = test_curve_line(x, y, out_x, out_y, cursor_x, cursor_y-center_pixel);
+                       lever = test_curve_line(ox, oy, out_x, out_y, cursor_x, cursor_y-center_pixel);
                        if(WITHIN(out_x1,out_x2,out_y1,out_y2) || lever > 0.0 ) {
                                result = 1;
                                if(buttonpress && (buttonpress != 3)) {
@@ -2773,6 +2833,9 @@ int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
        if(buttonpress && (buttonpress != 3) && result)
        {
                mwindow->undo->update_undo_before();
+               double position = current->autos->track->from_units(current->position);
+               mwindow->edl->local_session->set_selectionstart(position);
+               mwindow->edl->local_session->set_selectionend(position);
        }
 
        return result;
@@ -2780,43 +2843,31 @@ int TrackCanvas::test_floatauto(FloatAuto *current, int x, int y, int in_x,
 
 static int is_linear(FloatAuto *prev, FloatAuto *next)
 {
-       if( !prev || !next ) return 1;
+       if( !prev || !next ) return 0;
        if( prev->curve_mode == FloatAuto::LINEAR ) return 1;
        int64_t ipos = prev->get_control_in_position();
        int64_t opos = prev->get_control_out_position();
        if( !ipos && !opos ) return 1;
        if( !ipos || !opos ) return 0;
-       float ival = prev->get_control_in_value();
+       float ival = next->get_control_in_value();
        float oval = prev->get_control_out_value();
-       float cval = prev->get_value(), nval = next->get_value();
+       float cval = prev->get_value(0), nval = next->get_value(1);
        if( !ival && !oval && EQUIV(cval, nval) ) return 1;
        float ig = ival / ipos, og = oval / opos;
        int64_t cpos = prev->position, npos = next->position;
        float g = (nval - cval) / (npos - cpos);
-       if( EQUIV(ig, g) && EQUIV(og, g) ) return 1;
+       if( !EQUIV(g, 0) && EQUIV(ig, g) && EQUIV(og, g) ) return 1;
        return 0;
 }
 
 // Get the float value & y for position x on the canvas
 #define X_TO_FLOATLINE(x) \
-       int64_t position1 = (int64_t)(unit_start + x * zoom_units); \
-       int64_t position2 = (int64_t)(unit_start + x * zoom_units) + 1; \
+       double position = unit_start + x * zoom_units; \
+       int64_t position1 = (int64_t)position, position2 = position1 + 1; \
 /* Call by reference fails for some reason here */ \
        float value1 = autos->get_value(position1, PLAY_FORWARD, previous1, next1); \
        float value2 = autos->get_value(position2, PLAY_FORWARD, previous1, next1); \
-       double position = unit_start + x * zoom_units; \
-       double value = 0; \
-       if(position2 > position1) \
-       { \
-               value = value1 + \
-                       (value2 - value1) * \
-                       (position - position1) / \
-                       (position2 - position1); \
-       } \
-       else \
-       { \
-               value = value1; \
-       } \
+       double value = value1 + (value2 - value1) * (position - position1); \
        AUTOMATIONCLAMPS(value, autogrouptype); \
        int y = center_pixel + \
                (int)(((value - automation_min) / automation_range - 0.5) * -yscale);
@@ -2834,6 +2885,12 @@ void TrackCanvas::draw_floatline(int center_pixel,
        if( (y1 < ytop && y1 >= ybot) && (y2 < ytop || y2 >= ybot) ) return;
 // check for line draw
        if( is_linear(previous, next) ) {
+               if( previous && previous->curve_mode == FloatAuto::BUMP ) {
+                       double ax, ay;
+                       calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0, previous,
+                               unit_start, zoom_units, yscale, autogrouptype);
+                       x1 = ax;  y1 = ay;  y1 += center_pixel;
+               }
                draw_line(x1, y1, x2, y2);
                return;
        }
@@ -2927,41 +2984,43 @@ int TrackCanvas::test_floatline(int center_pixel,
        return result;
 }
 
-
-void TrackCanvas::fill_ganged_autos(int all, float change, Track *skip, FloatAuto *fauto)
+// gang=-1 for keyframepopup update, all tracks where fautos exist
+// gang=0 for trackcanvas drag update, all gang matching tracks, create new fautos if needed
+// gang=1 for trackcanvas drag update, all gang tracks, create new fautos if needed
+void TrackCanvas::fill_ganged_autos(int gang, float change, Track *skip, FloatAuto *fauto)
 {
        if( !skip->is_ganged() ) return;
 // Handles the special case of modifying a fadeauto
 // when there are ganged faders on several tracks
        double position = skip->from_units(fauto->position);
        int autoidx = fauto->autos->autoidx;
-
+       PatchGUI *patch = gang < 0 ? pane->patchbay->get_patch_of(skip) : 0;
+       int edge = patch ? patch->edge : 0;
+       int span = patch ? patch->span : 0;
        for(Track *current = mwindow->edl->tracks->first; current; current = NEXT) {
-               if( (all || current->data_type == skip->data_type) &&
-                   current->armed_gang(skip) && current->is_armed() &&
-                   current != skip ) {
+               if( current == skip || !current->is_armed() ) continue;
+               if( !gang && current->data_type != skip->data_type ) continue;
+               if( skip->armed_gang(current) || get_double_click() ) {
                        FloatAutos *fade_autos = (FloatAutos*)current->automation->autos[autoidx];
-                       float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
-                       float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
-                       int64_t current_position = current->to_units(position, 1);
                        FloatAuto *keyframe = (FloatAuto*)fade_autos->get_auto_at_position(position);
+                       int64_t current_position = current->to_units(position, 1);
                        if( keyframe ) {
 // keyframe exists, just change it
-                               float value = keyframe->get_value();
-                               float new_value = value + change;
-                               CLAMP(new_value, auto_min, auto_max);
-                               keyframe->adjust_to_new_coordinates(current_position, new_value);
+                               keyframe->bump_update(current_position, change, edge, span);
                        }
-                       else if( all >= 0 ) {
+                       else if( gang >= 0 ) {
 // create keyframe on neighbouring track at the point in time given by fauto
                                FloatAuto *previous = 0, *next = 0;
                                float value = fade_autos->get_value(current_position, PLAY_FORWARD, previous, next);
                                float new_value = value + change;
-                               CLAMP(new_value, auto_min, auto_max);
+                               float auto_min = mwindow->edl->local_session->automation_mins[fade_autos->autogrouptype];
+                               float auto_max = mwindow->edl->local_session->automation_maxs[fade_autos->autogrouptype];
+                               bclamp(new_value, auto_min, auto_max);
                                keyframe = (FloatAuto*)fade_autos->insert_auto(current_position);
-                               keyframe->set_value(new_value);
+                               keyframe->set_value(new_value, edge);
                        }
-                       if( !keyframe ) continue;
+                       else
+                               continue;
                        mwindow->session->drag_auto_gang->append((Auto *)keyframe);
                }
        }
@@ -2974,11 +3033,9 @@ void TrackCanvas::update_ganged_autos(float change, Track *skip, FloatAuto *faut
        for (int i = 0; i < mwindow->session->drag_auto_gang->total; i++) {
                FloatAuto *keyframe = (FloatAuto *)mwindow->session->drag_auto_gang->values[i];
                int64_t keyframe_position = keyframe->autos->track->to_units(position, 1);
-               float new_value = keyframe->get_value() + change;
-               CLAMP(new_value,
-                     mwindow->edl->local_session->automation_mins[keyframe->autos->autogrouptype],
-                     mwindow->edl->local_session->automation_maxs[keyframe->autos->autogrouptype]);
-               keyframe->adjust_to_new_coordinates(keyframe_position, new_value);
+               keyframe->bump_update(keyframe_position, change, 0, 0);
+               keyframe->set_control_in_value(fauto->get_control_in_value());
+               keyframe->set_control_out_value(fauto->get_control_out_value());
        }
 }
 
@@ -3130,7 +3187,7 @@ float TrackCanvas::percentage_to_value(float percentage,
 }
 
 
-void TrackCanvas::calculate_auto_position(double *x, double *y,
+void TrackCanvas::calculate_auto_position(int edge, double *x, double *y,
        double *in_x, double *in_y, double *out_x, double *out_y,
        Auto *current, double unit_start, double zoom_units, double yscale,
        int autogrouptype)
@@ -3142,7 +3199,7 @@ void TrackCanvas::calculate_auto_position(double *x, double *y,
                automation_range = SPEED_MIN;
        FloatAuto *ptr = (FloatAuto*)current;
        *x = (double)(ptr->position - unit_start) / zoom_units;
-       *y = ((ptr->get_value() - automation_min) / automation_range - 0.5) * -yscale;
+       *y = ((ptr->get_value(edge) - automation_min) / automation_range - 0.5) * -yscale;
 
        if(in_x) {
 //             *in_x = EQUIV(ptr->control_in_value, 0.0) ? *x : *x - mwindow->theme->control_pixels;
@@ -3150,7 +3207,7 @@ void TrackCanvas::calculate_auto_position(double *x, double *y,
        }
 
        if(in_y) {
-               *in_y = (((ptr->get_value() + ptr->get_control_in_value()) -
+               *in_y = (((ptr->get_value(edge) + ptr->get_control_in_value()) -
                                automation_min) / automation_range - 0.5) * -yscale;
        }
 
@@ -3160,7 +3217,7 @@ void TrackCanvas::calculate_auto_position(double *x, double *y,
        }
 
        if(out_y) {
-               *out_y = (((ptr->get_value() + ptr->get_control_out_value()) -
+               *out_y = (((ptr->get_value(edge) + ptr->get_control_out_value()) -
                                 automation_min) / automation_range - 0.5) * -yscale;
        }
 }
@@ -3175,7 +3232,6 @@ int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cu
        double view_start, unit_start;
        double view_end, unit_end, yscale;
        double zoom_sample, zoom_units;
-       double in_x2, in_y2, out_x2, out_y2;
        double slope;
        //int skip = 0;
 
@@ -3198,7 +3254,7 @@ int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cu
 
        double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
        if( first_auto ) {
-               calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
+               calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0,
                        first_auto, unit_start, zoom_units, yscale, autogrouptype);
        }
        if( current )
@@ -3213,7 +3269,7 @@ int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cu
                draw_auto = 1;
 
                if(current) {
-                       calculate_auto_position(&ax2, &ay2, &in_x2, &in_y2, &out_x2, &out_y2,
+                       calculate_auto_position(1, &ax2, &ay2, 0, 0, 0, 0,
                                current, unit_start, zoom_units, yscale, autogrouptype);
                }
                else {
@@ -3238,18 +3294,16 @@ int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cu
 // Draw or test handle
                if( current && !result && current != autos->default_auto ) {
                        if( !draw && track->is_armed() ) {
-                               result = test_floatauto((FloatAuto*)current, (int)ax2, (int)ay2,
-                                       (int)in_x2, (int)in_y2, (int)out_x2, (int)out_y2,
+                               result = test_floatauto((FloatAuto*)current, buttonpress,
                                        (int)center_pixel, (int)yscale, cursor_x, cursor_y,
-                                       buttonpress, autogrouptype);
+                                       unit_start, zoom_units, yscale, autogrouptype);
                                if( result )
                                        auto_instance = current;
                        }
                        if( draw && draw_auto ) {
-                               draw_floatauto((FloatAuto*)current, (int)ax2 + x_offset, (int)ay2,
-                                       (int)in_x2 + x_offset, (int)in_y2,
-                                       (int)out_x2 + x_offset, (int)out_y2,
-                                       (int)center_pixel + y_offset, (int)yscale, color);
+                               draw_floatauto((FloatAuto*)current, x_offset,
+                                       (int)center_pixel + y_offset, (int)yscale, color,
+                                       unit_start, zoom_units, yscale, autogrouptype);
                        }
                }
 
@@ -3269,9 +3323,10 @@ int TrackCanvas::do_float_autos(Track *track, Autos *autos, int cursor_x, int cu
 
                if( current ) {
                        previous = current;
+                       calculate_auto_position(0, &ax2, &ay2, 0, 0, 0, 0, previous,
+                               unit_start, zoom_units, yscale, autogrouptype);
                        current = NEXT;
                }
-
                ax = ax2;  ay = ay2;
        } while( current && current->position <= unit_end && !result );
 
@@ -3684,7 +3739,7 @@ int TrackCanvas::draw_hairline(Auto *auto_keyframe, int color, int show)
                return 0;
 
        double ax = 0, ay = 0;
-       calculate_auto_position(&ax, &ay, 0, 0, 0, 0,
+       calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0,
                auto_keyframe, unit_start, zoom_units, yscale, autogrouptype);
 
        set_color(color);
@@ -3793,14 +3848,8 @@ void TrackCanvas::update_drag_handle()
        double new_position;
        int cursor_x = get_cursor_x();
 
-       new_position =
-               (double)(cursor_x +
-               mwindow->edl->local_session->view_start[pane->number]) *
-               mwindow->edl->local_session->zoom_sample /
-               mwindow->edl->session->sample_rate;
-
-       new_position =
-               mwindow->edl->align_to_frame(new_position, 0);
+       new_position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
+       new_position = mwindow->edl->align_to_frame(new_position, 0);
 
        if( ctrl_down() && alt_down() ) {
 #define snapper(v) do { \
@@ -3902,7 +3951,7 @@ int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
                        !vrender->process_buffer(&vlt, left, 0) &&
                        !vrender->process_buffer(&vrt, pos , 0) ? 0 : 1;
                delete render_engine;
-               delete video_cache;
+               video_cache->remove_user();
                mwindow->cwindow->gui->lock_window("TrackCanvas::render_handle_frame 0");
                Canvas *canvas = mwindow->cwindow->gui->canvas;
                float ox1, oy1, ox2, oy2, cx1, cy1, cx2, cy2;
@@ -4023,7 +4072,8 @@ int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
 // not really editing the node, rather start editing the curve
 // tangent is editable and drag movement is significant
                if( (FloatAuto::FREE == current->curve_mode ||
-                    FloatAuto::TFREE==current->curve_mode) &&
+                    FloatAuto::TFREE==current->curve_mode ||
+                    FloatAuto::BUMP==current->curve_mode) &&
                    (fabs(x) > HANDLE_W / 2 || fabs(y) > HANDLE_W / 2))
                        mwindow->session->drag_handle = x < 0 ? 1 : 2;
        }
@@ -4033,28 +4083,27 @@ int TrackCanvas::update_drag_floatauto(int cursor_x, int cursor_y)
 // Snap to nearby values
                old_value = current->get_value();
                if(shift_down()) {
-                       double value1, value2, distance1=-1, distance2=-1;
-
+                       double distance1=-1, distance2=-1;
                        if(current->previous) {
                                int autogrouptype = current->previous->autos->autogrouptype;
                                value = percentage_to_value(percentage, 0, 0, autogrouptype);
-                               value1 = ((FloatAuto*)current->previous)->get_value();
+                               double value1 = ((FloatAuto*)current->previous)->get_value(0);
                                distance1 = fabs(value - value1);
-                               current->set_value(value1);
+                               current->set_value(value1, 1);
                        }
 
                        if(current->next) {
                                int autogrouptype = current->next->autos->autogrouptype;
                                value = percentage_to_value(percentage, 0, 0, autogrouptype);
-                               value2 = ((FloatAuto*)current->next)->get_value();
+                               double value2 = ((FloatAuto*)current->next)->get_value(1);
                                distance2 = fabs(value - value2);
                                if(!current->previous || distance2 < distance1) {
-                                       current->set_value(value2);
+                                       current->set_value(value2, 0);
                                }
                        }
 
                        if(!current->previous && !current->next) {
-                               current->set_value( ((FloatAutos*)current->autos)->default_);
+                               current->set_value(((FloatAutos*)current->autos)->default_, 0);
                        }
                        value = current->get_value();
                }
@@ -4268,42 +4317,46 @@ int TrackCanvas::cursor_update(int in_motion)
        {
                case DRAG_EDITHANDLE1:
 // Outside threshold.  Upgrade status
-                       if(active)
-                       {
-                               if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
-                               {
-                                       mwindow->session->current_operation = DRAG_EDITHANDLE2;
-                                       update_overlay = 1;
-                               }
+                       if( !active ) break;
+                       if( labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W ) {
+                               mwindow->session->current_operation = DRAG_EDITHANDLE2;
+                               update_overlay = 1;
                        }
                        break;
-
                case DRAG_EDITHANDLE2:
-                       if(active)
-                       {
-                               update_drag_handle();
-                               update_overlay = 1;
-                       }
+                       if( !active ) break;
+                       update_drag_handle();
+                       update_overlay = 1;
                        break;
 
                case DRAG_PLUGINHANDLE1:
-                       if(active)
-                       {
-                               if(labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W)
-                               {
-                                       mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
-                                       update_overlay = 1;
-                               }
+                       if( !active ) break;
+                       if( labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W ) {
+                               mwindow->session->current_operation = DRAG_PLUGINHANDLE2;
+                               update_overlay = 1;
                        }
                        break;
-
                case DRAG_PLUGINHANDLE2:
-                       if(active)
-                       {
-                               update_drag_handle();
+                       if( !active ) break;
+                       update_drag_handle();
+                       update_overlay = 1;
+                       break;
+
+               case DRAG_TRANSNHANDLE1:
+                       if( !active ) break;
+                       if( labs(get_cursor_x() - mwindow->session->drag_origin_x) > HANDLE_W ) {
+                               mwindow->session->current_operation = DRAG_TRANSNHANDLE2;
                                update_overlay = 1;
                        }
                        break;
+               case DRAG_TRANSNHANDLE2: {
+                       if( !active ) break;
+                       position = mwindow->edl->get_cursor_position(get_cursor_x(), pane->number);
+                       position = mwindow->edl->align_to_frame(position, 1);
+                       drag_transition_handle(position);
+                       rerender = 1;
+                       update_overlay = 1;
+                       break; }
 
 // Rubber band curves
                case DRAG_FADE:
@@ -4319,7 +4372,7 @@ int TrackCanvas::cursor_update(int in_motion)
                        if(active) rerender = update_overlay =
                                update_drag_floatauto(get_cursor_x(), get_cursor_y());
                        if( rerender && mwindow->session->current_operation == DRAG_SPEED )
-                               mwindow->speed_after(!in_motion ? 1 : 0);
+                               mwindow->speed_after(!in_motion ? 1 : 0, 0);
                        break;
 
                case DRAG_PLAY:
@@ -4426,6 +4479,8 @@ int TrackCanvas::cursor_update(int in_motion)
                                                0, new_cursor, update_cursor)) break;
                                if(do_keyframes(get_cursor_x(), get_cursor_y(),
                                        0, 0, new_cursor, update_cursor, rerender)) break;
+                               if(do_transition_handles(get_cursor_x(), get_cursor_y(),
+                                       0, rerender, update_overlay, new_cursor, update_cursor)) break;
                                if(do_edit_handles(get_cursor_x(), get_cursor_y(),
                                        0, rerender, update_overlay, new_cursor, update_cursor)) break;
 // Plugin boundaries
@@ -4625,9 +4680,23 @@ int TrackCanvas::button_release_event()
                        result = 1;
                        break;
 
+               case DRAG_TRANSNHANDLE2:
+                       mwindow->session->current_operation = NO_OPERATION;
+                       drag_scroll = 0;
+                       result = 1;
+
+                       end_transnhandle_selection();
+                       break;
+
+               case DRAG_TRANSNHANDLE1:
+                       mwindow->session->current_operation = NO_OPERATION;
+                       drag_scroll = 0;
+                       result = 1;
+                       break;
+
                case DRAG_SPEED:
                        redraw = FORCE_REDRAW;
-                       load_flags |= LOAD_EDITS;
+                       load_flags |= LOAD_EDITS | LOAD_TIMEBAR;
                case DRAG_FADE:
 // delete the drag_auto_gang first and remove out of order keys
                        clear_ganged_autos();
@@ -4947,6 +5016,95 @@ int TrackCanvas::do_plugin_handles(int cursor_x,
        return result;
 }
 
+int TrackCanvas::do_transition_handles(int cursor_x, int cursor_y, int button_press,
+               int &rerender, int &update_overlay, int &new_cursor, int &update_cursor)
+{
+       Transition *trans_result = 0;
+       int result = 0;
+
+       Track *track = mwindow->edl->tracks->first;
+       for( ; track && !result; track=track->next) {
+               if( track->is_hidden() ) continue;
+               Edit *edit = track->edits->first;
+               for( ; edit && !result; edit=edit->next ) {
+                       Transition *trans = edit->transition;
+                       if( !trans ) continue;
+                       int64_t x, y, w, h;
+                       edit_dimensions(edit, x, y, w, h);
+                       int strip_x = x, edit_y = y;
+                       get_transition_coords(edit, x, y, w, h);
+                       VFrame *strip = mwindow->theme->get_image("plugin_bg_data");
+                       int strip_y = y - strip->get_h();
+                       if( track->show_assets() && track->show_titles() )
+                               edit_y += mwindow->theme->get_image("title_bg_data")->get_h();
+                       if( strip_y < edit_y ) strip_y = edit_y;
+                       int strip_w = Units::round(edit->track->from_units(edit->transition->length) *
+                               mwindow->edl->session->sample_rate / mwindow->edl->local_session->zoom_sample);
+                       int x1 = strip_x + strip_w - HANDLE_W/2, x2 = x1 + HANDLE_W;
+                       int y1 = strip_y + strip->get_h()/2 - HANDLE_H/2, y2 = y1 + HANDLE_W;
+                       if( cursor_x >= x1 && cursor_x < x2 &&
+                           cursor_y >= y1 && cursor_y < y2 ) {
+                               trans_result = trans;
+                               result = 1;
+                       }
+               }
+       }
+
+       if( result ) {
+               if( button_press ) {
+                       mwindow->session->drag_transition = trans_result;
+                       mwindow->session->drag_handle = 1;
+                       mwindow->session->drag_button = get_buttonpress() - 1;
+                       int64_t trans_end = trans_result->edit->startproject + trans_result->length;
+                       double position = trans_result->edit->track->from_units(trans_end);
+                       mwindow->session->drag_position = position;
+                       mwindow->session->drag_start = position;
+                       mwindow->session->current_operation = DRAG_TRANSNHANDLE1;
+                       mwindow->session->drag_origin_x = get_cursor_x();
+                       mwindow->session->drag_origin_y = get_cursor_y();
+                       update_cursor = 1;
+               }
+               new_cursor = RIGHT_CURSOR;
+               update_overlay = 1;
+       }
+
+       return result;
+}
+
+int TrackCanvas::drag_transition_handle(double position)
+{
+       Transition *transition = mwindow->session->drag_transition;
+       if( !transition ) return 1;
+       mwindow->session->drag_position = position;
+       mwindow->edl->local_session->set_selectionstart(position);
+       mwindow->edl->local_session->set_selectionend(position);
+       char string[BCSTRLEN];
+       int64_t length = transition->length;
+       Track *track = transition->edit->track;
+       int64_t start_pos = track->to_units(mwindow->session->drag_start, 0);
+       int64_t end_pos = track->to_units(mwindow->session->drag_position, 0);
+       length += end_pos - start_pos;
+       if( length < 0 ) length = 0;
+       double time = track->from_units(length);
+       Units::totext(string, time,
+               mwindow->edl->session->time_format,
+               mwindow->edl->session->sample_rate,
+               mwindow->edl->session->frame_rate,
+               mwindow->edl->session->frames_per_foot);
+       mwindow->gui->show_message(string);
+       if( mwindow->gui->transition_menu->length_thread->running() ) {
+               TransitionLengthDialog *dialog = (TransitionLengthDialog *)
+                        mwindow->gui->transition_menu->length_thread->get_gui();
+               if( dialog ) {
+                       dialog->lock_window("TrackCanvas::drag_transition_handle");
+                       dialog->update_text(time);
+                       dialog->thread->new_length = time;
+                       dialog->unlock_window();
+               }
+       }
+       return 0;
+}
+
 
 int TrackCanvas::do_tracks(int cursor_x, int cursor_y, int button_press)
 {
@@ -5368,6 +5526,10 @@ int TrackCanvas::button_press_event()
                                        0, get_buttonpress(), new_cursor,
                                        update_cursor, rerender) ) break;
                                update_message = 1;
+
+                               if( do_transition_handles(cursor_x, cursor_y,
+                                       1, rerender, update_overlay, new_cursor,
+                                       update_cursor) ) break;
 // Test edit boundaries
                                if( do_edit_handles(cursor_x, cursor_y,
                                        1, rerender, update_overlay, new_cursor,
@@ -5404,6 +5566,8 @@ int TrackCanvas::button_press_event()
                                        break;
                                }
                                update_message = 1;
+                               if( do_transition_handles(cursor_x, cursor_y,
+                                       1, rerender, update_overlay, new_cursor, update_cursor) ) break;
 // Test edit boundaries
                                if( do_edit_handles(cursor_x, cursor_y,
                                        1, rerender, update_overlay, new_cursor, update_cursor) ) break;
@@ -5500,11 +5664,19 @@ int TrackCanvas::start_selection(double position)
 void TrackCanvas::end_edithandle_selection()
 {
        mwindow->modify_edithandles();
+       mwindow->session->drag_edit = 0;
 }
 
 void TrackCanvas::end_pluginhandle_selection()
 {
        mwindow->modify_pluginhandles();
+       mwindow->session->drag_plugin = 0;
+}
+
+void TrackCanvas::end_transnhandle_selection()
+{
+       mwindow->modify_transnhandles();
+       mwindow->session->drag_transition = 0;
 }