X-Git-Url: https://git.cinelerra-gg.org/git/?p=goodguy%2Fcinelerra.git;a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Fawindowgui.C;h=f668ee515fe02d85cadd2ef40e20ef686d8e1b93;hp=e2340d1e4a601c11ef499c79f8b0a7fd339bba93;hb=refs%2Fheads%2Fmaster;hpb=52bb84537e880ea41a6cca9f69bf8d7a8b5cc30f

diff --git a/cinelerra-5.1/cinelerra/awindowgui.C b/cinelerra-5.1/cinelerra/awindowgui.C
index e2340d1e..dfe0163a 100644
--- a/cinelerra-5.1/cinelerra/awindowgui.C
+++ b/cinelerra-5.1/cinelerra/awindowgui.C
@@ -2,6 +2,7 @@
 /*
  * CINELERRA
  * Copyright (C) 1997-2012 Adam Williams <broadcast at earthling dot net>
+ * Copyright (C) 2003-2016 Cinelerra CV contributors
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -29,8 +30,10 @@
 #include "awindow.h"
 #include "awindowgui.h"
 #include "bccmodels.h"
-#include "bcsignals.h"
+#include "bcdisplayinfo.h"
 #include "bchash.h"
+#include "bcsignals.h"
+#include "bctimer.h"
 #include "binfolder.h"
 #include "cache.h"
 #include "cstrdup.h"
@@ -109,19 +112,24 @@ AssetVIcon::AssetVIcon(AssetPicon *picon, int w, int h, double framerate, int64_
 	this->picon = picon;
 	this->length = length;
 	temp = 0;
+	broken = 0;
 }
 
 AssetVIcon::~AssetVIcon()
 {
+	if( picon->gui->vicon_thread->solo == this )
+		picon->gui->vicon_thread->solo = 0;
 	picon->gui->vicon_thread->del_vicon(this);
 	delete temp;
 }
 
 VFrame *AssetVIcon::frame()
 {
+	if( broken ) return 0;
 	AssetVIconThread *avt = picon->gui->vicon_thread;
-	Asset *asset = (Asset *)picon->indexable;
-	if( !asset ) return vframes()>0 ? (VFrame*)*images[0] : 0;
+	Indexable *idxbl = picon->indexable;
+	Asset *asset = idxbl && idxbl->is_asset ? (Asset *)idxbl : 0;
+	if( !asset ) return vframes()>0 ? images[0]->vfrm : 0;
 	if( !asset->video_data && audio_data && audio_size && length > 0 ) {
 		if( !temp ) temp = new VFrame(0, -1, w, h, BC_RGB888, -1);
 		temp->clear_frame();
@@ -159,27 +167,36 @@ VFrame *AssetVIcon::frame()
 	}
 	if( seq_no >= images.size() ) {
 		MWindow *mwindow = picon->mwindow;
-		File *file = mwindow->video_cache->check_out(asset, mwindow->edl, 1);
-		if( !file ) return 0;
 		if( temp && (temp->get_w() != asset->width || temp->get_h() != asset->height) ) {
 			delete temp;  temp = 0;
 		}
 		if( !temp )
 			temp = new VFrame(0, -1, asset->width, asset->height, BC_RGB888, -1);
-		while( seq_no >= images.size() ) {
-			mwindow->video_cache->check_in(asset);
-			Thread::yield();
-			file = mwindow->video_cache->check_out(asset, mwindow->edl, 0);
-			if( !file ) { usleep(1000);  continue; }
-			file->set_layer(0);
+		File *file = mwindow->video_cache->check_out(asset, mwindow->edl, 1);
+		if( !file ) { broken = 1;  return 0; }
+		Timer timer;
+		while( file && seq_no >= images.size() ) {
 			int64_t pos = images.size() / picon->gui->vicon_thread->refresh_rate * frame_rate;
 			file->set_video_position(pos,0);
+			file->set_layer(0);
 			if( file->read_frame(temp) ) temp->clear_frame();
 			add_image(temp, vw, vh, vicon_cmodel);
+			if( seq_no < images.size() ) break;
+			mwindow->video_cache->check_in(asset);
+			if( timer.get_difference() > 500 ) return 0;
+			Thread::yield();
+			if( avt->interrupted ) return 0;
+			file = mwindow->video_cache->check_out(asset, mwindow->edl, 0);
+			for( int retries=10; !file && --retries>=0; usleep(1000) ) {
+				if( avt->interrupted ) return 0;
+				file = mwindow->video_cache->check_out(asset, mwindow->edl, 0);
+			}
+			if( !file ) return 0;
 		}
 		mwindow->video_cache->check_in(asset);
 	}
-	return *images[seq_no];
+	if( seq_no >= images.size() ) return 0;
+	return images[seq_no]->vfrm;
 }
 
 int64_t AssetVIcon::set_seq_no(int64_t no)
@@ -528,7 +545,7 @@ void AssetViewPopup::draw_vframe(VFrame *vframe)
 	double total_length = edl->tracks->total_length();
 	if( !total_length ) total_length = 1;
 	for( Track *track=edl->tracks->first; track!=0; track=track->next ) {
-		if( !track->record ) continue;
+		if( !track->is_armed() ) continue;
 		for( Edit *edit=track->edits->first; edit!=0; edit=edit->next ) {
 			Indexable *indexable = (Indexable *)edit->asset;
 			if( !indexable ) indexable = (Indexable *)edit->nested_edl;
@@ -599,22 +616,10 @@ AssetVIconThread::AssetVIconThread(AWindowGUI *gui, Preferences *preferences)
 	case VICON_COLOR_MODE_HIGH:  vicon_cmodel = BC_RGB888;  break;
 	}
 	this->vicon_cmodel = vicon_cmodel;
-	this->draw_lock = new Mutex("AssetVIconThread::draw_lock");
 }
 
 AssetVIconThread::~AssetVIconThread()
 {
-	delete draw_lock;
-}
-
-void AssetVIconThread::drawing_started()
-{
-	draw_lock->lock("AssetVIconThread::drawing_started");
-}
-
-void AssetVIconThread::drawing_stopped()
-{
-	draw_lock->unlock();
 }
 
 void AssetVIconThread::set_view_popup(AssetVIcon *v, int draw_mode)
@@ -675,11 +680,11 @@ ViewPopup *AssetVIconThread::new_view_window(ViewPopup *vpopup)
 	return av_popup;
 }
 
-void AssetVIconThread::close_view_popup()
+void AssetVIconThread::stop_vicon_drawing(int wait)
 {
 	stop_drawing();
-	drawing_started(); // waits for draw lock
-	drawing_stopped();
+	gui->lock_window("AssetVIconThread::stop_vicon_drawing");
+	gui->unlock_window();
 }
 
 
@@ -878,7 +883,7 @@ void AssetPicon::reset()
 
 void AssetPicon::open_render_engine(EDL *edl, int is_audio)
 {
-	TransportCommand command;
+	TransportCommand command(mwindow->preferences);
 	command.command = is_audio ? NORMAL_FWD : CURRENT_FRAME;
 	command.get_edl()->copy_all(edl);
 	command.change_type = CHANGE_ALL;
@@ -917,16 +922,25 @@ void AssetPicon::create_objects()
 	int is_clip = 0;
 
 	if( this->indexable ) {
-		fs.extract_name(name, indexable->path);
-		set_text(name);
-		if( this->indexable->is_asset )
+		char *cp = name;
+		if( this->indexable->is_asset ) {
 			asset = (Asset *)indexable;
-		else
+			if( asset->format == FILE_REF ) {
+				cp += sprintf(cp, "ref:");
+				set_color(get_color() ^ 0x5599CC);
+			}
+		}
+		else {
 			edl = (EDL *)indexable;
+			cp += sprintf(cp, "edl:");
+//			set_color(get_color() ^ 0xCC9955);
+		}
+		fs.extract_name(cp, indexable->path);
+		set_text(name);
 	}
 	else if( this->edl ) {
 		edl = this->edl;
-		set_text(strcpy(name, edl->local_session->clip_title));
+		strcpy(name, edl->local_session->clip_title);
 		set_text(name);
 		is_clip = 1;
 	}
@@ -935,6 +949,11 @@ void AssetPicon::create_objects()
 		if( asset->video_data ) {
 			if( mwindow->preferences->use_thumbnails ) {
 				gui->unlock_window();
+				char string[BCTEXTLEN];
+				sprintf(string, _("Reading %s"), name);
+				mwindow->gui->lock_window("AssetPicon::create_objects");
+				mwindow->gui->show_message(string);
+				mwindow->gui->unlock_window();
 				File *file = mwindow->video_cache->check_out(asset,
 					mwindow->edl,
 					1);
@@ -958,11 +977,6 @@ void AssetPicon::create_objects()
 							asset->width, asset->height,
 							BC_RGB888, -1);
 					}
-					{ char string[BCTEXTLEN];
-					sprintf(string, _("Reading %s"), name);
-					mwindow->gui->lock_window("AssetPicon::create_objects");
-					mwindow->gui->show_message(string);
-					mwindow->gui->unlock_window(); }
 					file->read_frame(gui->temp_picon);
 					mwindow->video_cache->check_in(asset);
 
@@ -1258,7 +1272,7 @@ AWindowGUI::AWindowGUI(MWindow *mwindow, AWindow *awindow)
  : BC_Window(_(PROGRAM_NAME ": Resources"),
 	mwindow->session->awindow_x, mwindow->session->awindow_y,
 	mwindow->session->awindow_w, mwindow->session->awindow_h,
-	100, 100, 1, 1, 1)
+	xS(100), yS(100), 1, 1, 1)
 {
 	this->mwindow = mwindow;
 	this->awindow = awindow;
@@ -1304,10 +1318,13 @@ AWindowGUI::AWindowGUI(MWindow *mwindow, AWindow *awindow)
 	vicon_audio = 0;
 	vicon_drawing = AVICON_FULL_PLAY;
 	play_off = 0;
+	tip_info = 0;
 	displayed_folder = AW_NO_FOLDER;
 	new_folder_thread = 0;
 	modify_folder_thread = 0;
 	folder_lock = new Mutex("AWindowGUI::folder_lock");
+// *** CONTEXT_HELP ***
+	context_help_set_keyword("Resources Window");
 }
 
 AWindowGUI::~AWindowGUI()
@@ -1422,6 +1439,7 @@ void AWindowGUI::plugin_icon(VFrame *&vfrm, BC_Pixmap *&icon, const char *fn, un
 
 void AWindowGUI::create_objects()
 {
+	int ys5 = yS(5), ys10 = yS(10);
 	lock_window("AWindowGUI::create_objects");
 	asset_titles[0] = C_("Title");
 	asset_titles[1] = _("Comments");
@@ -1482,9 +1500,9 @@ void AWindowGUI::create_objects()
 
 	int x1 = mwindow->theme->alist_x, y1 = mwindow->theme->alist_y;
 	int w1 = mwindow->theme->alist_w, h1 = mwindow->theme->alist_h;
-	search_text = new AWindowSearchText(mwindow, this, x1, y1+5);
+	search_text = new AWindowSearchText(mwindow, this, x1, y1+ys5);
 	search_text->create_objects();
-	int dy = search_text->get_h() + 10;
+	int dy = search_text->get_h() + ys10;
 	y1 += dy;  h1 -= dy;
 	add_subwindow(asset_list = new AWindowAssets(mwindow, this, x1, y1, w1, h1));
 
@@ -1507,7 +1525,7 @@ void AWindowGUI::create_objects()
 		int nw = get_text_width(MEDIUMFONT, _(av_names[i]));
 		if( tw < nw )  tw = nw;
 	}
-	int pw = BC_PopupMenu::calculate_w(16, tw, 1);
+	int pw = BC_PopupMenu::calculate_w(xS(16), tw, 1);
 	const char *text = _(AVIconDrawing::avicon_names[vicon_drawing]);
 	add_subwindow(avicon_drawing = new AVIconDrawing(this, fw, fy, pw, text));
 	avicon_drawing->create_objects();
@@ -1596,10 +1614,11 @@ int AWindowGUI::translation_event()
 
 void AWindowGUI::reposition_objects()
 {
+	int ys5 = yS(5), ys10 = yS(10);
 	int x1 = mwindow->theme->alist_x, y1 = mwindow->theme->alist_y;
 	int w1 = mwindow->theme->alist_w, h1 = mwindow->theme->alist_h;
-	search_text->reposition_window(x1, y1+5, w1);
-	int dy = search_text->get_h() + 10;
+	search_text->reposition_window(x1, y1+ys5, w1);
+	int dy = search_text->get_h() + ys10;
 	y1 += dy;  h1 -= dy;
 	asset_list->reposition_window(x1, y1, w1, h1);
 	divider->reposition_window(
@@ -1677,17 +1696,12 @@ int AWindowGUI::start_vicon_drawing()
 	return 1;
 }
 
-int AWindowGUI::stop_vicon_drawing()
+int AWindowGUI::stop_vicon_drawing(int wait)
 {
-	if( !vicon_thread->interrupted )
-		vicon_thread->stop_drawing();
+	vicon_thread->stop_vicon_drawing(wait);
 	return 0;
 }
 
-void AWindowGUI::close_view_popup()
-{
-	vicon_thread->close_view_popup();
-}
 
 VFrame *AssetPicon::get_vicon_frame()
 {
@@ -1738,7 +1752,9 @@ void AWindowGUI::hide_tip_info()
 AWindowRemovePluginGUI::
 AWindowRemovePluginGUI(AWindow *awindow, AWindowRemovePlugin *thread,
 	int x, int y, PluginServer *plugin)
- : BC_Window(_(PROGRAM_NAME ": Remove plugin"), x,y, 500,200, 50, 50, 1, 0, 1, -1, "", 1)
+ : BC_Window(_(PROGRAM_NAME ": Remove plugin"), x,y,
+		xS(500),yS(200), xS(50), yS(50),
+		1, 0, 1, -1, "", 1)
 {
 	this->awindow = awindow;
 	this->thread = thread;
@@ -1746,6 +1762,8 @@ AWindowRemovePluginGUI(AWindow *awindow, AWindowRemovePlugin *thread,
 	VFrame *vframe = plugin->get_picon();
 	icon = vframe ? create_pixmap(vframe) : 0;
 	plugin_list.append(new BC_ListBoxItem(plugin->title, icon));
+// *** CONTEXT_HELP ***
+	context_help_set_keyword("Delete Plugins to save Resources Space");
 }
 
 AWindowRemovePluginGUI::
@@ -1758,17 +1776,19 @@ AWindowRemovePluginGUI::
 
 void AWindowRemovePluginGUI::create_objects()
 {
+	int xs10 = xS(10), xs20 = xS(20);
+	int ys5 = yS(5), ys10 = yS(10);
 	lock_window("AWindowRemovePluginGUI::create_objects");
 	BC_Button *ok_button = new BC_OKButton(this);
 	add_subwindow(ok_button);
 	BC_Button *cancel_button = new BC_CancelButton(this);
 	add_subwindow(cancel_button);
-	int x = 10, y = 10;
+	int x = xs10, y = ys10;
 	BC_Title *title = new BC_Title(x, y, _("remove plugin?"));
 	add_subwindow(title);
-	y += title->get_h() + 5;
+	y += title->get_h() + ys5;
 	list = new BC_ListBox(x, y,
-		get_w() - 20, ok_button->get_y() - y - 5, LISTBOX_TEXT, &plugin_list,
+		get_w() - xs20, ok_button->get_y() - y - ys5, LISTBOX_TEXT, &plugin_list,
 		0, 0, 1, 0, 0, LISTBOX_SINGLE, ICON_LEFT, 0);
 	add_subwindow(list);
 	show_window();
@@ -1857,6 +1877,8 @@ BC_Window* AWindowRemovePlugin::new_gui()
 
 int AWindowGUI::keypress_event()
 {
+	char title[BCTEXTLEN];
+	PluginServer* plugin = 0;
 	switch( get_keypress() ) {
 	case 'w': case 'W':
 		if( ctrl_down() ) {
@@ -1878,7 +1900,7 @@ int AWindowGUI::keypress_event()
 		return cycle_assetlist_format();
 	case DELETE:
 		if( shift_down() && ctrl_down() ) {
-			PluginServer* plugin = selected_plugin();
+			plugin = selected_plugin();
 			if( !plugin ) break;
 			remove_plugin = new AWindowRemovePlugin(awindow, plugin);
 			unlock_window();
@@ -1892,7 +1914,7 @@ int AWindowGUI::keypress_event()
 			return 1;
 		}
 		unlock_window();
-		mwindow->remove_assets_from_project(1, 1,
+		mwindow->remove_assets_from_project(1, 1, 1,
 			mwindow->session->drag_assets,
 			mwindow->session->drag_clips);
 		lock_window("AWindowGUI::keypress_event 2");
@@ -1907,7 +1929,30 @@ int AWindowGUI::keypress_event()
 		}
 		break;
 	}
-	return 0;
+// *** CONTEXT_HELP ***
+	if( get_keypress() != 'h' || ! alt_down() )	    return 0;
+	if( ! is_tooltip_event_win() || ! cursor_inside() ) return 0;
+	// If some plugin is selected, show its help
+	// Otherwise show general help
+	plugin = selected_plugin();
+	if( plugin ) {
+		strcpy(title, plugin->title);
+		if( ! strcmp(title, "Overlay") ) {
+			// "Overlay" plugin title is ambiguous
+			if( plugin->audio ) strcat(title, " \\(Audio\\)");
+			if( plugin->video ) strcat(title, " \\(Video\\)");
+		}
+		if( plugin->is_ffmpeg() ) {
+			// FFmpeg plugins can be audio or video
+			if( plugin->audio )
+				strcpy(title, "FFmpeg Audio Plugins");
+			if( plugin->video )
+				strcpy(title, "FFmpeg Video Plugins");
+		}
+		context_help_show(title);
+	}
+	else context_help_show("Resources Window");
+	return 1;
 }
 
 
@@ -2061,6 +2106,21 @@ void AWindowGUI::update_asset_list()
 			AssetPicon *picon = new AssetPicon(mwindow,
 				this, current);
 			new_assets.append(picon);
+			if( current->width > ASSET_MAX_WIDTH || current->height > ASSET_MAX_HEIGHT ) {
+				eprintf(_("Warning: %s\n"
+					" dimensions %dx%d exceed asset maximum limits %dx%d\n"),
+					current->path, current->width, current->height,
+						ASSET_MAX_WIDTH, ASSET_MAX_HEIGHT);
+			}
+			else if( mwindow->edl->session->playback_config->vconfig->driver == PLAYBACK_X11_GL ) {
+				int texture_limit = BC_DisplayInfo::get_gl_max_texture_size();
+				if( texture_limit >= 0 &&
+				    (current->width >= texture_limit || current->height >= texture_limit) ) {
+					eprintf(_("Warning: %s\n"
+						" dimensions %dx%d exceed OpenGL texture limit %d\n"),
+						current->path, current->width, current->height, texture_limit);
+				}
+			}
 		}
 	}
 
@@ -2185,14 +2245,16 @@ void AWindowGUI::sort_folders()
 	update_assets();
 }
 
-EDL *AWindowGUI::collect_proxy(Indexable *indexable)
+EDL *AWindowGUI::collect_proxy(Asset *proxy_asset)
 {
-	Asset *proxy_asset = (Asset *)indexable;
 	char path[BCTEXTLEN];
 	int proxy_scale = mwindow->edl->session->proxy_scale;
 	ProxyRender::from_proxy_path(path, proxy_asset, proxy_scale);
-	Asset *unproxy_asset = mwindow->edl->assets->get_asset(path);
-	if( !unproxy_asset || !unproxy_asset->layers ) return 0;
+	Indexable *unproxy_idxbl =
+		proxy_asset->proxy_edl ?
+			(Indexable *) mwindow->edl->get_nested_edl(path) :
+			(Indexable *) mwindow->edl->assets->get_asset(path);
+	if( !unproxy_idxbl || !unproxy_idxbl->get_video_layers() ) return 0;
 // make a clip from proxy video tracks and unproxy audio tracks
 	EDL *proxy_edl = new EDL(mwindow->edl);
 	proxy_edl->create_objects();
@@ -2201,7 +2263,7 @@ EDL *AWindowGUI::collect_proxy(Indexable *indexable)
 	strcpy(proxy_edl->local_session->clip_title, path);
 	strcpy(proxy_edl->local_session->clip_notes, _("Proxy clip"));
 	proxy_edl->session->video_tracks = proxy_asset->layers;
-	proxy_edl->session->audio_tracks = unproxy_asset->channels;
+	proxy_edl->session->audio_tracks = unproxy_idxbl->get_audio_channels();
 	proxy_edl->create_default_tracks();
 	double length = proxy_asset->frame_rate > 0 ?
 		( proxy_asset->video_length >= 0 ?
@@ -2215,11 +2277,15 @@ EDL *AWindowGUI::collect_proxy(Indexable *indexable)
 		if( current->data_type != TRACK_VIDEO ) continue;
 		current->insert_asset(proxy_asset, 0, length, 0, vtrack++);
 	}
-	length = (double)unproxy_asset->audio_length / unproxy_asset->sample_rate;
+	int64_t samples = unproxy_idxbl->get_audio_samples();
+	int sample_rate = unproxy_idxbl->get_sample_rate();
+	length = sample_rate > 0 ? (double)samples / sample_rate : 0;
 	current = proxy_edl->tracks->first;
 	for( int atrack=0; current; current=NEXT ) {
 		if( current->data_type != TRACK_AUDIO ) continue;
-		current->insert_asset(unproxy_asset, 0, length, 0, atrack++);
+		Asset *asset = unproxy_idxbl->is_asset ? (Asset *)unproxy_idxbl : 0;
+		EDL *nested_edl = unproxy_idxbl->is_asset ? 0 : (EDL *)unproxy_idxbl;
+		current->insert_asset(asset, nested_edl, length, 0, atrack++);
 	}
 	proxy_edl->folder_no = AW_PROXY_FOLDER;
 	return proxy_edl;
@@ -2235,7 +2301,7 @@ void AWindowGUI::collect_assets(int proxy)
 		Indexable *indexable = result->indexable;
 		if( proxy && indexable && indexable->is_asset &&
 		    indexable->folder_no == AW_PROXY_FOLDER ) {
-			EDL *drag_edl = collect_proxy(indexable);
+			EDL *drag_edl = collect_proxy((Asset*)indexable);
 			if( drag_edl ) mwindow->session->drag_clips->append(drag_edl);
 			continue;
 		}
@@ -2496,7 +2562,7 @@ int AWindowDivider::button_press_event()
 int AWindowDivider::cursor_motion_event()
 {
 	if( mwindow->session->current_operation == DRAG_PARTITION ) {
-		int wmin = 25;
+		int wmin = xS(25);
 		int wmax = mwindow->session->awindow_w - mwindow->theme->adivider_w - wmin;
 		int fw = gui->get_relative_cursor_x();
 		if( fw > wmax ) fw = wmax;
@@ -2631,12 +2697,18 @@ int AWindowFolders::load_expanders()
 	char expanders_path[BCTEXTLEN];
 	mwindow->create_defaults_path(expanders_path, EXPANDERS_FILE);
 	FILE *fp = fopen(expanders_path, "r");
+	if( !fp ) {
+		snprintf(expanders_path, sizeof(expanders_path), "%s/%s",
+			File::get_cindat_path(), EXPANDERS_FILE);
+		char *cp = strrchr(expanders_path,'.');
+		if( cp ) strcpy(cp+1, mwindow->cin_lang);
+		fp = fopen(expanders_path, "r");
+	}
 	if( !fp ) {
 		snprintf(expanders_path, sizeof(expanders_path), "%s/%s",
 			File::get_cindat_path(), EXPANDERS_FILE);
 		fp = fopen(expanders_path, "r");
 	}
-
 	if( !fp ) return 1;
 	const char tab = '\t';
 	char line[BCTEXTLEN];   line[0] = 0;
@@ -2791,8 +2863,8 @@ int AWindowAssets::handle_event()
 		break;
 	}
 	if( !vwindow || !vwindow->is_running() ) return 1;
-	if( proxy && picon_idxbl ) {
-		picon_edl = gui->collect_proxy(picon_idxbl);
+	if( proxy && picon_idxbl && picon_idxbl->is_asset ) {
+		picon_edl = gui->collect_proxy((Asset*)picon_idxbl);
 		picon_idxbl = 0;
 	}
 
@@ -2839,6 +2911,18 @@ int AWindowAssets::selection_changed()
 
 		deactivate_selection();
 	}
+	else if( get_button_down() && get_buttonpress() == LEFT_BUTTON &&
+		 get_double_click() ) {
+		item = (AssetPicon*)get_selection(0, 0);
+		if( item ) {
+			switch( folder ) {
+			case AW_LABEL_FOLDER:
+				if( !item->label ) break;
+				mwindow->set_position(item->label->position);
+				break;
+			}
+		}
+	}
 	else if( get_button_down() && !gui->play_off &&
 		 mwindow->edl->session->assetlist_format != ASSETS_TEXT ) {
 		item = (AssetPicon*)get_selection(0, 0);
@@ -2887,7 +2971,7 @@ void AWindowAssets::draw_background()
 	set_font(LARGEFONT);
 	int folder = mwindow->edl->session->awindow_folder;
 	const char *title = mwindow->edl->get_folder_name(folder);
-	draw_text(get_w() - get_text_width(LARGEFONT, title) - 4, 30,
+	draw_text(get_w() - get_text_width(LARGEFONT, title) - xS(4), yS(30),
 		title, -1, get_bg_surface());
 }
 
@@ -3129,7 +3213,11 @@ int AWindowAssets::mouse_over_event(int no)
 
 void AWindowAssets::show_tip_info(const char *info, int no)
 {
-	show_tooltip(info);
+	int tw = get_text_width(MEDIUMFONT, info) + TOOLTIP_MARGIN * 2;
+	int th = get_text_height(MEDIUMFONT, info) + TOOLTIP_MARGIN * 2;
+	int tx = get_w() - (tw + xS(28));
+	int ty = get_h() - (th + yS(28));
+	show_tooltip(info, tx, ty, tw, th);
 	info_tip = no;
 }
 
@@ -3139,6 +3227,102 @@ void AWindowAssets::hide_tip_info()
 	info_tip = -1;
 }
 
+// *** CONTEXT_HELP ***
+int AWindowAssets::keypress_event()
+{
+	int item;
+	char title[BCTEXTLEN];
+	AssetPicon *picon = 0;
+	PluginServer *plugin = 0;
+
+//	printf("AWindowAssets::keypress_event: %d\n", get_keypress());
+
+	// If not our context help keystroke, redispatch it
+	// to the event handler of the base class
+	if (get_keypress() != 'h' || ! alt_down() ||
+	    ! is_tooltip_event_win() || ! cursor_inside())
+		return BC_ListBox::keypress_event();
+
+	switch (mwindow->edl->session->awindow_folder) {
+
+	case AW_AEFFECT_FOLDER:
+	case AW_VEFFECT_FOLDER:
+	case AW_ATRANSITION_FOLDER:
+	case AW_VTRANSITION_FOLDER:
+		// If plugin tips activated, show help for plugin under mouse
+		// Otherwise show help for the selected plugin
+		if (gui->tip_info) {
+			item = BC_ListBox::get_highlighted_item();
+			if (item >= 0 && item < gui->displayed_assets[0].size()) {
+				picon = (AssetPicon *) gui->displayed_assets[0][item];
+				if (picon) plugin = picon->plugin;
+			}
+		}
+		else plugin = gui->selected_plugin();
+		// If some plugin is highlighted or selected, show its help
+		// Otherwise show more general help
+		if (plugin) {
+			strcpy(title, plugin->title);
+			if (! strcmp(title, "Overlay")) {
+				// "Overlay" plugin title is ambiguous
+				if (plugin->audio)
+					strcat(title, " \\(Audio\\)");
+				if (plugin->video)
+					strcat(title, " \\(Video\\)");
+			}
+			if (plugin->is_ffmpeg()) {
+				// FFmpeg plugins can be audio or video
+				if (plugin->audio)
+					strcpy(title, "FFmpeg Audio Plugins");
+				if (plugin->video)
+					strcpy(title, "FFmpeg Video Plugins");
+			}
+			context_help_show(title);
+			return 1;
+		}
+		else {
+			switch (mwindow->edl->session->awindow_folder) {
+			case AW_AEFFECT_FOLDER:
+				context_help_show("Audio Effects");
+				return 1;
+			case AW_VEFFECT_FOLDER:
+				context_help_show("Video Effects");
+				return 1;
+			case AW_ATRANSITION_FOLDER:
+				context_help_show("Audio Transitions");
+				return 1;
+			case AW_VTRANSITION_FOLDER:
+				context_help_show("Video Transitions");
+				return 1;
+			default:
+				context_help_show("Resources Window");
+				return 1;
+			}
+			context_help_show("Resources Window");
+			return 1;
+		}
+
+	case AW_LABEL_FOLDER:
+		context_help_show("Labels");
+		return 1;
+
+	case AW_CLIP_FOLDER:
+		context_help_show("Nested Clips");
+		return 1;
+
+	case AW_PROXY_FOLDER:
+		context_help_show("Proxy");
+		return 1;
+
+	default:
+		context_help_show("Resources Window");
+		return 1;
+	}
+
+	context_help_show("Resources Window");
+	return 1;
+}
+
 
 AWindowSearchTextBox::AWindowSearchTextBox(AWindowSearchText *search_text, int x, int y, int w)
  : BC_TextBox(x, y, w, 1, "")
@@ -3161,10 +3345,11 @@ AWindowSearchText::AWindowSearchText(MWindow *mwindow, AWindowGUI *gui, int x, i
 
 void AWindowSearchText::create_objects()
 {
-	int x1 = x, y1 = y, margin = 10;
+	int xs10 = xS(10);
+	int x1 = x, y1 = y;
 	gui->add_subwindow(text_title = new BC_Title(x1, y1, _("Search:")));
-	x1 += text_title->get_w() + margin;
-	int w1 = gui->get_w() - x1 - 2*margin;
+	x1 += text_title->get_w() + xs10;
+	int w1 = gui->get_w() - x1 - 2*xs10;
 	gui->add_subwindow(text_box = new AWindowSearchTextBox(this, x1, y1, w1));
 }
 
@@ -3176,7 +3361,7 @@ int AWindowSearchText::handle_event()
 
 int AWindowSearchText::get_w()
 {
-	return text_box->get_w() + text_title->get_w() + 10;
+	return text_box->get_w() + text_title->get_w() + xS(10);
 }
 
 int AWindowSearchText::get_h()
@@ -3186,10 +3371,11 @@ int AWindowSearchText::get_h()
 
 void AWindowSearchText::reposition_window(int x, int y, int w)
 {
-	int x1 = x, y1 = y, margin = 10;
+	int xs10 = xS(10);
+	int x1 = x, y1 = y;
 	text_title->reposition_window(x1, y1);
-	x1 += text_title->get_w() + margin;
-	int w1 = gui->get_w() - x1 - 2*margin;
+	x1 += text_title->get_w() + xs10;
+	int w1 = gui->get_w() - x1 - 2*xs10;
 	text_box->reposition_window(x1, y1, w1);
 }