Andrew contribution to add preference method for Fast/Slow speed
[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / trackcanvas.C
index 098090a693c4d419f0ebfbf17b26ebd76fef2981..d39ce4554757009a84897e7828a093c4415e1588 100644 (file)
@@ -158,10 +158,646 @@ void TrackCanvas::resize_event()
 //printf("TrackCanvas::resize_event 2\n");
 }
 
+// *** CONTEXT_HELP ***
+// This complicated implementation (up to *** END_CONTEXT_HELP ***)
+// serves solely for context dependent help
 int TrackCanvas::keypress_event()
 {
+       int cursor_x, cursor_y;
+
+//     printf("TrackCanvas::keypress_event: %d\n", get_keypress());
+       if (get_keypress() != 'h' || ! alt_down())         return 0;
+       if (! is_tooltip_event_win() || ! cursor_inside()) return 0;
+
+       cursor_x = get_cursor_x();
+       cursor_y = get_cursor_y();
+
+// Provide different help depending on the kind of object under the cursor:
+// transition border handles
+// transition icons themselves
+// autos (keyframes or lines) and plugin keyframes
+// asset border handles
+// plugin border handles
+// plugin bars themselves
+       if (help_transition_handles(cursor_x, cursor_y)) return 1;
+       if (help_transitions(cursor_x, cursor_y))        return 1;
+       if (help_keyframes(cursor_x, cursor_y))          return 1;
+       if (help_edit_handles(cursor_x, cursor_y))       return 1;
+       if (help_plugin_handles(cursor_x, cursor_y))     return 1;
+       if (help_plugins(cursor_x, cursor_y))            return 1;
+
+// Show "Editing" chapter as a fallback when cursor was over anything else
+       context_help_show("Editing");
+       return 1;
+}
+
+int TrackCanvas::help_transitions(int cursor_x, int cursor_y)
+{
+       int done = 0;
+       int64_t x, y, w, h;
+       Transition *transition = 0;
+
+       // Detect, if any, the transition under cursor
+       for( Track *track = mwindow->edl->tracks->first; track && !done; track = track->next ) {
+               if( track->is_hidden() ) continue;
+               if( !track->show_transitions() ) continue;
+
+               for( Edit *edit = track->edits->first; edit; edit = edit->next ) {
+                       if( edit->transition ) {
+                               edit_dimensions(edit, x, y, w, h);
+                               get_transition_coords(edit, x, y, w, h);
+
+                               if( MWindowGUI::visible(x, x + w, 0, get_w()) &&
+                                       MWindowGUI::visible(y, y + h, 0, get_h()) ) {
+                                       if( cursor_x >= x && cursor_x < x + w &&
+                                               cursor_y >= y && cursor_y < y + h ) {
+                                               transition = edit->transition;
+                                               done = 1;
+                                               break;
+                                       }
+                               }
+                       }
+               }
+       }
+
+       // If transition found, display its context help
+       if(transition) {
+               context_help_show(transition->title);
+               return 1;
+       }
+
+       return 0;
+}
+
+int TrackCanvas::help_keyframes(int cursor_x, int cursor_y)
+{
+       int result = 0;
+       EDLSession *session = mwindow->edl->session;
+
+       static BC_Pixmap *help_pixmaps[AUTOMATION_TOTAL] =
+       {
+               0, 0, 0, 0, 0, 0, 0, 0,
+               pankeyframe_pixmap,
+               modekeyframe_pixmap,
+               maskkeyframe_pixmap,
+               0,
+       };
+
+       for(Track *track = mwindow->edl->tracks->first;
+               track && !result;
+               track = track->next) {
+               if( track->is_hidden() ) continue;
+               Automation *automation = track->automation;
+
+               for(int i = 0; i < AUTOMATION_TOTAL && !result; i ++)
+               {
+// Event not trapped and automation visible
+                       Autos *autos = automation->autos[i];
+                       if(!result && session->auto_conf->autos[i] && autos) {
+                               switch(i) {
+                               case AUTOMATION_MODE:
+                               case AUTOMATION_PAN:
+                               case AUTOMATION_MASK:
+                                       result = help_autos(track, automation->autos[i],
+                                               cursor_x, cursor_y,
+                                               help_pixmaps[i]);
+                                               break;
+
+                               default: {
+                                       switch(autos->get_type()) {
+                                       case Autos::AUTOMATION_TYPE_FLOAT: {
+                                               Automation automation(0, track);
+                                               int grouptype = automation.autogrouptype(i, track);
+
+                                               result = help_float_autos(track, autos,
+                                                       cursor_x, cursor_y,
+                                                       grouptype);
+
+                                               break; }
+
+                                       case Autos::AUTOMATION_TYPE_INT: {
+                                               result = help_int_autos(track, autos,
+                                                       cursor_x, cursor_y);
+                                               break; }
+                                       }
+                                       break; }
+                               }
+
+                               if(result)
+                               {
+                                       context_help_show("Using Autos");
+                               }
+                       }
+               }
+
+               if(!result && session->auto_conf->plugins) {
+                       result = help_plugin_autos(track, cursor_x, cursor_y);
+                       if(result) {
+                               context_help_show("Edit Params");
+                       }
+               }
+       }
+
+       return result;
+}
+
+int TrackCanvas::help_plugin_autos(Track *track, int cursor_x, int cursor_y)
+{
+       int result = 0;
+
+       double view_start;
+       double unit_start;
+       double view_end;
+       double unit_end;
+       double yscale;
+       int center_pixel;
+       double zoom_sample;
+       double zoom_units;
+
+       if(!track->expand_view) return 0;
+
+       calculate_viewport(track,
+               view_start,
+               unit_start,
+               view_end,
+               unit_end,
+               yscale,
+               center_pixel,
+               zoom_sample,
+               zoom_units);
+
+       for(int i = 0; i < track->plugin_set.total && !result; i++)
+       {
+               PluginSet *plugin_set = track->plugin_set.values[i];
+               int center_pixel = track->y_pixel -
+                       mwindow->edl->local_session->track_start[pane->number];
+               if( track->show_titles() )
+                       center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
+               if( track->show_assets() )
+                       center_pixel += track->data_h;
+               center_pixel += (i + 0.5) * mwindow->theme->get_image("plugin_bg_data")->get_h();
+
+               for(Plugin *plugin = (Plugin*)plugin_set->first;
+                       plugin && !result;
+                       plugin = (Plugin*)plugin->next)
+               {
+                       for(KeyFrame *keyframe = (KeyFrame*)plugin->keyframes->first;
+                               keyframe && !result;
+                               keyframe = (KeyFrame*)keyframe->next)
+                       {
+                               if(keyframe->position >= unit_start && keyframe->position < unit_end)
+                               {
+                                       int64_t x = (int64_t)((keyframe->position - unit_start) / zoom_units);
+                                       int y = center_pixel - keyframe_pixmap->get_h() / 2;
+
+                                       if(cursor_x >= x && cursor_y >= y &&
+                                               cursor_x < x + keyframe_pixmap->get_w() &&
+                                               cursor_y < y + keyframe_pixmap->get_h())
+                                       {
+                                               result = 1;
+                                       }
+                               }
+                       }
+               }
+       }
+
+       return result;
+}
+
+int TrackCanvas::help_autos(Track *track, Autos *autos, int cursor_x,
+               int cursor_y, BC_Pixmap *pixmap)
+{
+       int result = 0;
+
+       double view_start;
+       double unit_start;
+       double view_end;
+       double unit_end;
+       double yscale;
+       int center_pixel;
+       double zoom_sample;
+       double zoom_units;
+
+       calculate_viewport(track,
+               view_start,
+               unit_start,
+               view_end,
+               unit_end,
+               yscale,
+               center_pixel,
+               zoom_sample,
+               zoom_units);
+
+       Auto *current;
+
+       for(current = autos->first; current && !result; current = NEXT)
+       {
+               if(current->position >= unit_start && current->position < unit_end)
+               {
+                       int64_t x, y;
+                       x = (int64_t)((double)(current->position - unit_start) /
+                               zoom_units - (pixmap->get_w() / 2.0 + 0.5));
+                       y = center_pixel - pixmap->get_h() / 2;
+
+                       if(cursor_x >= x && cursor_y >= y &&
+                               cursor_x < x + pixmap->get_w() &&
+                               cursor_y < y + pixmap->get_h())
+                       {
+                               result = 1;
+                       }
+               }
+       }
+
+       return result;
+}
+
+int TrackCanvas::help_float_autos(Track *track, Autos *autos, int cursor_x, int cursor_y, int autogrouptype)
+{
+       int result = 0;
+       int center_pixel;
+       double view_start, unit_start;
+       double view_end, unit_end, yscale;
+       double zoom_sample, zoom_units;
+       double slope;
+
+       calculate_viewport(track, view_start, unit_start, view_end, unit_end,
+                       yscale, center_pixel, zoom_sample, zoom_units);
+
+// Get first auto before start
+       Auto *current = 0, *previous = 0;
+
+       for( current = autos->last;
+               current && current->position >= unit_start;
+               current = PREVIOUS ) ;
+
+       Auto *first_auto = current ? current :
+                autos->first ? autos->first : autos->default_auto;
+
+       double ax = 0, ay = 0, ax2 = 0, ay2 = 0;
+       if( first_auto ) {
+               calculate_auto_position(0, &ax, &ay, 0, 0, 0, 0,
+                       first_auto, unit_start, zoom_units, yscale, autogrouptype);
+       }
+       if( current )
+               current = NEXT;
+       else {
+               current = autos->first;
+               ax = 0;
+       }
+
+       do {
+               if(current) {
+                       calculate_auto_position(1, &ax2, &ay2, 0, 0, 0, 0,
+                               current, unit_start, zoom_units, yscale, autogrouptype);
+               }
+               else {
+                       ax2 = get_w();
+                       ay2 = ay;
+               }
+
+               slope = ax2 > ax ? (ay2 - ay) / (ax2 - ax) : 0;
+
+               if(ax2 > get_w()) {
+                       ax2 = get_w();
+                       ay2 = ay + slope * (get_w() - ax);
+               }
+
+               if(ax < 0) {
+                       ay = ay + slope * (0 - ax);
+                       ax = 0;
+               }
+
+// test handle
+               if( current && !result && current != autos->default_auto ) {
+                       if( track->is_armed() ) {
+                               result = test_floatauto((FloatAuto*)current, 0,
+                                       (int)center_pixel, (int)yscale, cursor_x, cursor_y,
+                                       unit_start, zoom_units, yscale, autogrouptype);
+                       }
+               }
+
+// test joining line
+               if( !result && track->is_armed() ) {
+                       result = test_floatline(center_pixel,
+                               (FloatAutos*)autos, unit_start, zoom_units, yscale,
+// Exclude auto coverage from the end of the line.  The auto overlaps
+                               (int)ax, (int)ax2 - HANDLE_W / 2, cursor_x, cursor_y,
+                               0, autogrouptype);
+               }
+
+               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 );
+
+       if( ax < get_w() && !result ) {
+               ax2 = get_w();  ay2 = ay;
+               if(track->is_armed()) {
+                       result = test_floatline(center_pixel,
+                               (FloatAutos*)autos, unit_start, zoom_units, yscale,
+                               (int)ax, (int)ax2, cursor_x, cursor_y,
+                               0, autogrouptype);
+               }
+       }
+
+       return result;
+}
+
+int TrackCanvas::help_int_autos(Track *track, Autos *autos, int cursor_x, int cursor_y)
+{
+       int result = 0;
+       double view_start;
+       double unit_start;
+       double view_end;
+       double unit_end;
+       double yscale;
+       int center_pixel;
+       double zoom_sample;
+       double zoom_units;
+       double ax, ay, ax2, ay2;
+
+       calculate_viewport(track,
+               view_start,
+               unit_start,
+               view_end,
+               unit_end,
+               yscale,
+               center_pixel,
+               zoom_sample,
+               zoom_units);
+
+       double high = -yscale * 0.8 / 2;
+       double low = yscale * 0.8 / 2;
+
+// Get first auto before start
+       Auto *current;
+       for(current = autos->last; current && current->position >= unit_start; current = PREVIOUS)
+               ;
+
+       if(current)
+       {
+               ax = 0;
+               ay = ((IntAuto*)current)->value > 0 ? high : low;
+               current = NEXT;
+       }
+       else
+       {
+               current = autos->first ? autos->first : autos->default_auto;
+               if(current)
+               {
+                       ax = 0;
+                       ay = ((IntAuto*)current)->value > 0 ? high : low;
+               }
+               else
+               {
+                       ax = 0;
+                       ay = yscale;
+               }
+       }
+
+       do
+       {
+               if(current)
+               {
+                       ax2 = (double)(current->position - unit_start) / zoom_units;
+                       ay2 = ((IntAuto*)current)->value > 0 ? high : low;
+               }
+               else
+               {
+                       ax2 = get_w();
+                       ay2 = ay;
+               }
+
+               if(ax2 > get_w()) ax2 = get_w();
+
+               if(current && !result)
+               {
+                       if(current != autos->default_auto)
+                       {
+                               if(track->is_armed())
+                               {
+                                       result = test_auto(current,
+                                               (int)ax2,
+                                               (int)ay2,
+                                               (int)center_pixel,
+                                               (int)yscale,
+                                               cursor_x,
+                                               cursor_y,
+                                               0);
+                               }
+                       }
+
+                       current = NEXT;
+               }
+
+               if(!result)
+               {
+                       if(track->is_armed())
+                       {
+                               result = test_toggleline(autos,
+                                       center_pixel,
+                                       (int)ax,
+                                       (int)ay,
+                                       (int)ax2,
+                                       (int)ay2,
+                                       cursor_x,
+                                       cursor_y,
+                                       0);
+                       }
+               }
+
+               ax = ax2;
+               ay = ay2;
+       }while(current && current->position <= unit_end && !result);
+
+       if(ax < get_w() && !result)
+       {
+               ax2 = get_w();
+               ay2 = ay;
+               if(track->is_armed())
+               {
+                       result = test_toggleline(autos,
+                               center_pixel,
+                               (int)ax,
+                               (int)ay,
+                               (int)ax2,
+                               (int)ay2,
+                               cursor_x,
+                               cursor_y,
+                               0);
+               }
+       }
+       return result;
+}
+
+int TrackCanvas::help_transition_handles(int cursor_x, int cursor_y)
+{
+       if( !mwindow->edl->session->auto_conf->transitions )
+               return 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 ) {
+                               result = 1;
+                       }
+               }
+       }
+
+       if( result ) {
+               context_help_show("Editing Effects");
+       }
+
+       return result;
+}
+
+int TrackCanvas::help_edit_handles(int cursor_x, int cursor_y)
+{
+       int result = 0;
+
+       for( Track *track=mwindow->edl->tracks->first; track && !result; track=track->next) {
+               if( track->is_hidden() ) continue;
+               for( Edit *edit=track->edits->first; edit && !result; edit=edit->next ) {
+                       int64_t edit_x, edit_y, edit_w, edit_h;
+                       edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
+
+                       if( cursor_x >= edit_x && cursor_x <= edit_x + edit_w &&
+                           cursor_y >= edit_y && cursor_y < edit_y + edit_h &&
+                           ( cursor_x < edit_x + HANDLE_W ||
+                             cursor_x >= edit_x + edit_w - HANDLE_W )) {
+                               result = 1;
+                       }
+               }
+       }
+
+       if( result ) {
+               context_help_show("Trimming");
+       }
+
+       return result;
+}
+
+int TrackCanvas::help_plugin_handles(int cursor_x, int cursor_y)
+{
+       int result = 0;
+
+       for(Track *track = mwindow->edl->tracks->first;
+               track && !result;
+               track = track->next) {
+               if( track->is_hidden() ) continue;
+               for(int i = 0; i < track->plugin_set.total && !result; i++) {
+                       PluginSet *plugin_set = track->plugin_set.values[i];
+                       for(Plugin *plugin = (Plugin*)plugin_set->first;
+                               plugin && !result;
+                               plugin = (Plugin*)plugin->next) {
+                               int64_t plugin_x, plugin_y, plugin_w, plugin_h;
+                               plugin_dimensions(plugin, plugin_x, plugin_y, plugin_w, plugin_h);
+
+                               if(cursor_x >= plugin_x && cursor_x <= plugin_x + plugin_w &&
+                                  cursor_y >= plugin_y && cursor_y < plugin_y + plugin_h &&
+                                  (cursor_x < plugin_x + HANDLE_W ||
+                                   cursor_x >= plugin_x + plugin_w - HANDLE_W)) {
+                                       result = 1;
+                               }
+                       }
+               }
+       }
+
+       if(result) {
+               context_help_show("Editing Effects");
+       }
+
+       return result;
+}
+
+int TrackCanvas::help_plugins(int cursor_x, int cursor_y)
+{
+       int done = 0;
+       int64_t x, y, w, h;
+       Track *track = 0;
+       Plugin *plugin = 0;
+       char title[BCTEXTLEN];
+
+       // Detect, if any, the plugin under cursor
+       for(track = mwindow->edl->tracks->first; track && !done; track = track->next) {
+               if(!track->expand_view) continue;
+
+               for(int i = 0; i < track->plugin_set.total && !done; i++) {
+                       // first check if plugins are visible at all
+                       if (!track->expand_view)
+                               continue;
+                       PluginSet *plugin_set = track->plugin_set.values[i];
+                       for(plugin = (Plugin*)plugin_set->first;
+                               plugin && !done;
+                               plugin = (Plugin*)plugin->next) {
+                               plugin_dimensions(plugin, x, y, w, h);
+                               if(MWindowGUI::visible(x, x + w, 0, get_w()) &&
+                                       MWindowGUI::visible(y, y + h, 0, get_h())) {
+                                       if(cursor_x >= x && cursor_x < x + w &&
+                                               cursor_y >= y && cursor_y < y + h) {
+                                               done = 1;
+                                               break;
+                                       }
+                               }
+                       }
+               }
+       }
+
+       // If plugin found, display its context help
+       if(plugin) {
+               strcpy(title, plugin->title);
+               if(! strcmp(title, "Overlay"))
+                       // "Overlay" plugin title is ambiguous
+                       switch(plugin->track->data_type)
+                       {
+                       case TRACK_AUDIO:
+                               strcat(title, " \\(Audio\\)");
+                               break;
+                       case TRACK_VIDEO:
+                               strcat(title, " \\(Video\\)");
+                               break;
+                       }
+               if(! strncmp(title, "F_", 2))
+                       // FFmpeg plugins can be audio or video
+                       switch(plugin->track->data_type)
+                       {
+                       case TRACK_AUDIO:
+                               strcpy(title, "FFmpeg Audio Plugins");
+                               break;
+                       case TRACK_VIDEO:
+                               strcpy(title, "FFmpeg Video Plugins");
+                               break;
+                       }
+               context_help_show(title);
+               return 1;
+       }
+
        return 0;
 }
+// *** END_CONTEXT_HELP ***
 
 int TrackCanvas::cursor_leave_event()
 {
@@ -188,6 +824,7 @@ int TrackCanvas::drag_motion(
                Track **over_track, Edit **over_edit,
                PluginSet **over_pluginset, Plugin **over_plugin)
 {
+       int update_scroll = 0;
        int cursor_x = get_relative_cursor_x();
        int cursor_y = get_relative_cursor_y();
        if( get_cursor_over_window() ) {
@@ -196,6 +833,28 @@ int TrackCanvas::drag_motion(
        }
        if( over_track && !*over_track )
                *over_track = pane->over_patchbay();
+
+       switch( mwindow->session->current_operation ) {
+       case DRAG_EDIT_SELECT: {
+               Edit *edit = over_edit ? *over_edit : 0;
+               double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
+               mwindow->session->drag_position = mwindow->edl->align_to_frame(position, 0);
+               drag_edit_select(edit, 0, 1);
+               update_scroll = 1;
+               break; }
+       }
+
+       if( update_scroll ) {
+               if( !drag_scroll &&
+                   (cursor_x >= get_w() || cursor_x < 0 ||
+                    cursor_y >= get_h() || cursor_y < 0))
+                       start_dragscroll();
+               else if( drag_scroll &&
+                        cursor_x < get_w() && cursor_x >= 0 &&
+                        cursor_y < get_h() && cursor_y >= 0 )
+                       stop_dragscroll();
+       }
+
        return 0;
 }
 
@@ -500,7 +1159,7 @@ int TrackCanvas::drag_stop(int *redraw)
                                result = 1;
                        }
                        break;
-               case DRAG_GROUP:
+               case DRAG_GROUP: {
                        mwindow->session->current_operation = NO_OPERATION;
                        EDL *drag_group = mwindow->session->drag_group;
                        if( drag_group ) {
@@ -532,10 +1191,21 @@ int TrackCanvas::drag_stop(int *redraw)
                                }
                        }
                        result = 1;
+                       break; }
+               case DRAG_EDIT_SELECT:
+                       int select = ctrl_down() ? -1 : 1;
+                       drag_edit_select(mwindow->session->edit_highlighted, select, 0);
                        break;
                }
        }
 
+       switch( mwindow->session->current_operation ) {
+       case DRAG_EDIT_SELECT:
+               mwindow->session->current_operation = NO_OPERATION;
+               result = 1;
+               break;
+       }
+
        return result;
 }
 
@@ -771,14 +1441,11 @@ void TrackCanvas::draw_resources(int mode,
 
        resource_timer->update();
 
+       if(!indexes_only) {
 // Age resource pixmaps for deletion
-       if(!indexes_only)
                for(int i = 0; i < gui->resource_pixmaps.total; i++)
                        gui->resource_pixmaps.values[i]->visible--;
-
-       if(mode == FORCE_REDRAW)
-               gui->resource_pixmaps.remove_all_objects();
-
+       }
        if(debug) PRINT_TRACE
        if(mode != IGNORE_THREAD)
                gui->resource_thread->reset(pane->number, indexes_only);
@@ -944,12 +1611,9 @@ ResourcePixmap* TrackCanvas::create_pixmap(Edit *edit,
        if(!result)
        {
 //SET_TRACE
-               result = new ResourcePixmap(mwindow,
-                       gui,
-                       edit,
-                       pane->number,
-                       pixmap_w,
-                       pixmap_h);
+               result = new ResourcePixmap(mwindow, gui, edit, pane->number, pixmap_w, pixmap_h);
+               set_bg_color(BLACK);
+               clear_box(0,0, pixmap_w,pixmap_h, result);
 //SET_TRACE
                gui->resource_pixmaps.append(result);
        }
@@ -2206,7 +2870,8 @@ int TrackCanvas::do_keyframes(int cursor_x,
 // track context menu to appear
        int result = 0;
        EDLSession *session = mwindow->edl->session;
-       int gang = session->gang_tracks != GANG_NONE || get_double_click() ? 1 : 0;
+       int gang = mwindow->edl->local_session->gang_tracks != GANG_NONE ||
+                       get_double_click() ? 1 : 0;
 
        static BC_Pixmap *auto_pixmaps[AUTOMATION_TOTAL] =
        {
@@ -3936,7 +4601,7 @@ int TrackCanvas::render_handle_frame(EDL *edl, int64_t pos, int mode)
        case 0: {
                VFrame vlt(edl->get_w(), edl->get_h(), edl->session->color_model);
                VFrame vrt(edl->get_w(), edl->get_h(), edl->session->color_model);
-               TransportCommand command;
+               TransportCommand command(mwindow->preferences);
                command.command = CURRENT_FRAME;
                command.get_edl()->copy_all((EDL *)edl);
                command.change_type = CHANGE_ALL;
@@ -4293,6 +4958,53 @@ void TrackCanvas::update_drag_caption()
 }
 
 
+void TrackCanvas::drag_edit_select(Edit *over_edit, int select, int draw)
+{
+       if( !over_edit ) return;
+       if( !mwindow->session->drag_edit ) return;
+       Track *drag_track = mwindow->session->drag_edit->track;
+       Track *over_track = over_edit->track;
+       if( !drag_track || !over_track ) return;
+       if( drag_track->number_of() > over_track->number_of() ) {
+               Track *trk = drag_track;
+               drag_track = over_track;
+               over_track = trk;
+       }
+       double start_pos = mwindow->session->drag_start;
+       double end_pos = mwindow->session->drag_position;
+       if( start_pos > end_pos ) {
+               double pos = start_pos;
+               start_pos = end_pos;
+               end_pos = pos;
+       }
+       int done = 0, do_flash = 0;
+       for( Track *track=drag_track; !done; track=track->next ) {
+               if( !track->is_armed() ) continue;
+               for( Edit *edit=track->edits->first; edit; edit=edit->next ) {
+                       int64_t pos = edit->startproject;
+                       int64_t end = pos + edit->length;
+                       double edit_start = track->from_units(pos);
+                       double edit_end = track->from_units(end);
+                       if( start_pos >= edit_end ) continue;
+                       if( edit_start > end_pos ) continue;
+                       if( select > 0 )
+                               edit->is_selected = 1;
+                       else if( select < 0 )
+                               edit->is_selected = 0;
+                       if( draw ) {
+                               int64_t edit_x, edit_y, edit_w, edit_h;
+                               edit_dimensions(edit, edit_x, edit_y, edit_w, edit_h);
+                               set_color(YELLOW);
+                               draw_rectangle(edit_x, edit_y, edit_w, edit_h);
+                               do_flash = 1;
+                       }
+               }
+               if( track == over_track ) done = 1;
+       }
+       if( do_flash )
+               flash();
+}
+
 
 int TrackCanvas::cursor_update(int in_motion)
 {
@@ -4306,7 +5018,7 @@ int TrackCanvas::cursor_update(int in_motion)
        int update_cursor = 0;
        int rerender = 0;
        double position = 0.;
-//printf("TrackCanvas::cursor_update %d\n", __LINE__);
+//printf("TrackCanvas::cursor_update %d %d,%d\n", __LINE__, get_cursor_x(), get_cursor_y());
 
 // Default cursor
        int new_cursor =
@@ -4577,6 +5289,7 @@ int TrackCanvas::repeat_event(int64_t duration)
        int result = 0;
 
        switch(mwindow->session->current_operation) {
+               case DRAG_EDIT_SELECT:
                case SELECT_REGION:
 //printf("TrackCanvas::repeat_event 1 %d\n", mwindow->edl->local_session->view_start);
                if(get_cursor_x() > get_w()) {
@@ -4774,6 +5487,10 @@ int TrackCanvas::button_release_event()
                        drag_scroll = 0;
                        break; }
 
+               case DRAG_EDIT_SELECT:
+                       //result = 0;
+                       break;
+
                default:
                        if( mwindow->session->current_operation ) {
 //                             if(mwindow->session->current_operation == SELECT_REGION) {
@@ -5019,6 +5736,8 @@ int TrackCanvas::do_plugin_handles(int cursor_x,
 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)
 {
+       if( !mwindow->edl->session->auto_conf->transitions )
+               return 0;
        Transition *trans_result = 0;
        int result = 0;
 
@@ -5185,8 +5904,15 @@ int TrackCanvas::do_edits(int cursor_x, int cursor_y, int button_press, int drag
                                        mwindow->session->drag_origin_x = cursor_x;
                                        mwindow->session->drag_origin_y = cursor_y;
 // Where the drag started, so we know relative position inside the edit later
-                                       mwindow->session->drag_position =
-                                               mwindow->edl->get_cursor_position(cursor_x, pane->number);
+                                       double position = mwindow->edl->get_cursor_position(cursor_x, pane->number);
+                                       mwindow->session->drag_position = mwindow->edl->align_to_frame(position, 1);
+                                       if( get_buttonpress() == LEFT_BUTTON && alt_down() ) {
+                                               mwindow->session->drag_start = mwindow->session->drag_position;
+                                               drag_edit_select(edit, 0, 1);
+                                               mwindow->session->current_operation = DRAG_EDIT_SELECT;
+                                               result = 1;
+                                               continue;
+                                       }
                                        drag_start = 0; // if unselected "fast" drag
                                        if( !edit->silence() && !edit->is_selected ) {
                                                mwindow->edl->tracks->clear_selected_edits();