Add ability to set the selected label.

scripts/piped-work/docimages_labels.py

@@ -0,0 +1,124 @@
+# docimages_labels.py
+# Sends commands to get images for the manual.
+# Images for https://alphamanual.audacityteam.org/man/Removing_Labels_-_Examples
+
+# Make sure Audacity is running first and that mod-script-pipe is enabled
+# before running this script.
+
+import os
+import sys
+
+
+if( sys.platform  == 'win32' ):
+    print( "pipe-test.py, running on windows" )
+    toname = '\\\\.\\pipe\\ToSrvPipe'
+    fromname = '\\\\.\\pipe\\FromSrvPipe'
+    EOL = '\r\n\0'
+else:
+    print( "pipe-test.py, running on linux or mac" )
+    toname = '/tmp/audacity_script_pipe.to.' + str(os.getuid())
+    fromname = '/tmp/audacity_script_pipe.from.' + str(os.getuid())
+    EOL = '\n'
+
+print( "Write to  \"" + toname +"\"" )
+if not os.path.exists( toname ) :
+   print( " ..does not exist.  Ensure Audacity is running with mod-script-pipe." )
+   sys.exit();
+    
+print( "Read from \"" + fromname +"\"")
+if not os.path.exists( fromname ) :
+   print( " ..does not exist.  Ensure Audacity is running with mod-script-pipe." )
+   sys.exit();
+
+print( "-- Both pipes exist.  Good." )
+
+tofile = open( toname, 'wt+' )
+print( "-- File to write to has been opened" )
+fromfile = open( fromname, 'rt')
+print( "-- File to read from has now been opened too\r\n" )
+
+
+def sendCommand( command ) :
+    print( "Send: >>> \n"+command )
+    tofile.write( command + EOL )	
+    tofile.flush()
+
+def getResponse() :
+    result = ''
+    line = ''
+    while line != '\n' :
+        result += line
+        line = fromfile.readline()
+	#print(" I read line:["+line+"]")
+    return result
+
+def doCommand( command ) :
+    sendCommand( command )
+    response = getResponse()
+    print( "Rcvd: <<< \n" + response )
+    return response
+
+def do( command ) :
+    doCommand( command )
+
+def quickTest() :
+    do( 'Help: Command=Help' )
+
+def setup() :
+    global path
+    path = '\"C:/Users/James Crook/\"'
+    do( 'SetProject: X=10 Y=10 Width=850 Height=800' )
+
+def makeWayForTracks(  ) :
+    do( 'SelectTracks: FirstTrack=0 LastTrack=20' )
+    do( 'RemoveTracks' )
+
+
+def makeMonoTracks( num ) :
+    makeWayForTracks( )
+    for i in range( 0, num ):
+        do( 'NewMonoTrack' )
+    do( 'SetTrack: TrackIndex=0 Name="Foxy Lady"')
+    do( 'SelectTime: StartTime=0 EndTime=30' )
+    do( 'SelectTracks: FirstTrack=0 LastTrack=' + str(num-1) )
+    do( 'Chirp: StartAmp=0.5' )
+    do( 'Wahwah' )
+    do( 'FitInWindow' )
+    do( 'SelectTime: StartTime=11 EndTime=14')
+ 
+def makeStereoTracks( num ) :
+    makeWayForTracks( )
+    for i in range( 0, num ):
+       do( 'NewStereoTrack' )
+    do( 'SetTrack: TrackIndex=0 Name="Voodoo Children IN STEREO"')
+    do( 'SelectTime: StartTime=0 EndTime=30' )
+    do( 'SelectTracks: FirstTrack=0 LastTrack=' + str(num*2-1) )
+    do( 'Chirp: StartAmp=0.5' )
+    do( 'Wahwah' )
+    do( 'FitInWindow' )
+    do( 'SelectTime: StartTime=11 EndTime=14')
+
+def addLabels():
+    do( 'SelectTime: StartTime=0 EndTime=1' )
+    do( 'AddLabel' )
+    do( 'AddLabel' )
+    do( 'AddLabel' )
+    do( 'AddLabel' )
+    do( 'SetLabel: LabelIndex=0 Text="Homweward Bound" Start=1 End=1 ')
+    do( 'SetLabel: LabelIndex=1 Text="Silver Dagger" Start=7 End=7 ')
+    do( 'SetLabel: LabelIndex=2 Selected=1 Text="NOISE" Start=9 End=12 ')
+    do( 'SetLabel: LabelIndex=3 Text="Blood in These Veins" Start=16 End=16 ')
+    do( 'SelectTime: StartTime=9 EndTime=12' )
+
+# A mono track complete with ruler
+def image1() :
+    global path
+    makeStereoTracks(1)
+    addLabels()
+    do( 'Screenshot: Path='+path+' CaptureWhat=First_Two_Tracks' )
+
+    
+#quickTest()
+setup()
+image1()
+

src/commands/SetLabelCommand.cpp

@@ -36,6 +36,7 @@ bool SetLabelCommand::DefineParams( ShuttleParams & S ){
    S.Optional( bHasText       ).Define(  mText,        wxT("Text"),       wxT("empty") );
    S.Optional( bHasT0         ).Define(  mT0,          wxT("Start"),      0.0, 0.0, 100000.0);
    S.Optional( bHasT1         ).Define(  mT1,          wxT("End"),        0.0, 0.0, 100000.0);
+   S.Optional( bHasSelected   ).Define(  mbSelected,   wxT("Selected"),   false );
    return true;
 };
 
@@ -53,6 +54,7 @@ void SetLabelCommand::PopulateOrExchange(ShuttleGui & S)
       S.Optional( bHasText      ).TieTextBox(         _("Text:"),     mText );
       S.Optional( bHasT0        ).TieNumericTextBox(  _("Start:"),    mT0 );
       S.Optional( bHasT1        ).TieNumericTextBox(  _("End:"),      mT1 );
+      S.Optional( bHasSelected  ).TieCheckBox(        _("Selected:"), mbSelected );
    }
    S.EndMultiColumn();
 }
@@ -68,13 +70,15 @@ bool SetLabelCommand::Apply(const CommandContext & context)
    Track *t = iter.First();
    LabelStruct * pLabel = NULL;
    int i=0;
+   int nn=0;
 
+   LabelTrack *labelTrack = nullptr;
    while (t && i<=mLabelIndex) {
       if (t->GetKind() == Track::Label) {
-         LabelTrack *labelTrack = static_cast<LabelTrack*>(t);
+         labelTrack = static_cast<LabelTrack*>(t);
          if( labelTrack )
          {
-            for (int nn = 0; 
+            for (nn = 0; 
                (nn< (int)labelTrack->mLabels.size()) && i<=mLabelIndex; 
                nn++) {
                i++;
@@ -96,9 +100,17 @@ bool SetLabelCommand::Apply(const CommandContext & context)
       pLabel->selectedRegion.setT0(mT0, false);
    if( bHasT1 )
       pLabel->selectedRegion.setT1(mT1, false);
-
    if( bHasT0 || bHasT1 )
       pLabel->selectedRegion.ensureOrdering();
+   pLabel->updated = true;
+
+   // Only one label can be selected.
+   if( bHasSelected ){
+      if( mbSelected )
+         labelTrack->mSelIndex = nn-1;
+      else if( labelTrack->mSelIndex == (nn-1) )
+         labelTrack->mSelIndex = -1;
+   }
 
    return true;
 }

src/commands/SetLabelCommand.h

@@ -42,11 +42,13 @@ public:
    wxString mText;
    double mT0;
    double mT1;
+   bool mbSelected;
 
 // For tracking optional parameters.
    bool bHasText;
    bool bHasT0;
    bool bHasT1;
+   bool bHasSelected;
 };