+ 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;
+ }
+