/**<summary>Redraws the control.</summary>*/
protected override void OnRender(DrawingContext d)
{
// Set guidelines for pixel perfection
GuidelineSet guidelines = new GuidelineSet();
guidelines.GuidelinesX.Add(0.5);
guidelines.GuidelinesX.Add(ActualHeight + 0.5);
guidelines.GuidelinesY.Add(0.5);
guidelines.GuidelinesY.Add(ActualWidth + 0.5);
d.PushGuidelineSet(guidelines);
// Highlight the midi's octave range
if (!DesignerProperties.GetIsInDesignMode(this) && IsTrackLoaded)
{
int min = (AllTracksLoaded ? 0 : trackIndex);
int max = (AllTracksLoaded ? Config.Midi.TrackCount : trackIndex + 1);
for (int index = min; index < max; index++)
{
if (!Config.Midi.GetTrackSettingsAt(index).Enabled&& AllTracksLoaded)
{
continue;
}
double high = GetSemitoneY((Config.Midi.GetTrackSettingsAt(index).OctaveOffset + 3) * 12);
double low = GetSemitoneY((Config.Midi.GetTrackSettingsAt(index).OctaveOffset + 1) * 12);
d.DrawRectangle(Brushes.LightYellow, null, Floor(new Rect(
GetProgressX(0), high, ActualWidthSpacing, low - high
)));
}
for (int index = min; index < max; index++)
{
if (!Config.Midi.GetTrackSettingsAt(index).Enabled&& AllTracksLoaded)
{
continue;
}
double high = GetSemitoneY((Config.Midi.GetTrackSettingsAt(index).OctaveOffset + 3) * 12);
double low = GetSemitoneY((Config.Midi.GetTrackSettingsAt(index).OctaveOffset + 1) * 12);
d.DrawRectangle(null, new Pen(Brushes.Gold, 3), Floor(new Rect(
GetProgressX(0), high, ActualWidthSpacing, low - high
)));
}
}
// Draw the octave lines and labels
for (int i = 0; i <= OctaveRange; i++)
{
double y = TrackGraph.SpacingY + ActualHeightSpacing / OctaveRange * i;
d.DrawLine(new Pen(Brushes.LightGray, 1),
Floor(new Point(SpacingLeft, y)),
Floor(new Point(ActualWidth - SpacingRight, y)));
var formattedText = new FormattedText(
"C" + (highestOctave - i),
CultureInfo.GetCultureInfo("en-us"),
FlowDirection.LeftToRight,
new Typeface("Segoe UI"),
12,
Brushes.Black
);
y -= formattedText.Height / 2;
d.DrawText(formattedText, Floor(new Point(SpacingLabel, y)));
}
// Stop using the guidelines
d.Pop();
// The milliseconds of the next playable note
int nextPlayable = 0;
// The use time in milliseconds (Checked if not in designer)
int useTime = 0;
// Current milliseconds of the midi playback
int currentMilliseconds = 0;
if (!DesignerProperties.GetIsInDesignMode(this))
{
useTime = Config.UseTime * 1000 / 60;
currentMilliseconds = Config.Sequencer.CurrentTime;
}
// Draw all notes
for (int i = 0; i < notes.Count; i++)
{
TrackNote note = notes[i];
note.Semitone += Config.Midi.NoteOffset;
if (note.Semitone >= 0 && note.Semitone <= 132)
{
double x = GetProgressX(note.Progress);
double y = GetSemitoneY(note.Semitone);
bool skipped = note.Milliseconds < nextPlayable;
bool inRange = IsNoteInsideRange(note);
bool recentlyPlayed =
note.Milliseconds <= currentMilliseconds &&
note.Milliseconds + RecentlyPlayedThreshold >= currentMilliseconds &&
Config.Midi.GetTrackSettingsAt(note.TrackIndex).Enabled;
SolidColorBrush brush;
if (skipped)
{
brush = SkippedNoteBrush;
if (!ShowSkippedNotes)
{
continue;
}
}
else
{
nextPlayable = note.Milliseconds + useTime + 2;
if (!inRange)
{
brush = WrappedNoteBrush;
if (!ShowWrappedNotes)
{
continue;
}
}
else
{
brush = ValidNoteBrush;
if (!ShowValidNotes)
{
continue;
}
}
}
if (recentlyPlayed && drawingPlayback && (!skipped || !Config.SkipPianoMode))
{
double scale = (double)(currentMilliseconds - note.Milliseconds) / RecentlyPlayedThreshold;
brush = Lerp(RecentlyPlayedNoteBrush, brush, scale);
}
// Don't floor the ellipse
d.DrawEllipse(brush, null, new Point(x, y), 2, 2);
}
}
}
/**<summary>Gets if the note is within the midi's octave range.</summary>*/
private bool IsNoteInsideRange(TrackNote note)
{
return(note.Semitone - (Config.Midi.GetTrackSettingsAt(note.TrackIndex).OctaveOffset + 1) * 12 >= 0 &&
note.Semitone - (Config.Midi.GetTrackSettingsAt(note.TrackIndex).OctaveOffset + 1) * 12 <= 24);
}
/**<summary>Updates changes made to the track.</summary>*/
public void Update()
{
lowestOctave = 10;
highestOctave = -1;
int min = (AllTracksLoaded ? 0 : trackIndex);
int max = (AllTracksLoaded ? Config.Midi.TrackCount : trackIndex + 1);
for (int index = min; index < max; index++)
{
if (!Config.Midi.GetTrackSettingsAt(index).Enabled&& AllTracksLoaded)
{
continue;
}
lowestOctave = Math.Min(lowestOctave, Math.Max(-1, Math.Min(
Config.Midi.GetTrackSettingsAt(index).OctaveOffset - 1,
(Config.Midi.GetTrackAt(index).LowestNote + Config.Midi.NoteOffset) / 12 - 1
)));
highestOctave = Math.Max(highestOctave, Math.Min(10, Math.Max(
Config.Midi.GetTrackSettingsAt(index).OctaveOffset + 3,
(Config.Midi.GetTrackAt(index).HighestNote + Config.Midi.NoteOffset - 1) / 12
)));
}
if (lowestOctave >= highestOctave)
{
lowestOctave = -1;
highestOctave = 10;
}
// The milliseconds of the next playable note
int nextPlayable = 0;
// The use time in milliseconds (Checked if not in designer)
int useTime = 0;
ValidNotes = 0;
WrappedNotes = 0;
SkippedNotes = 0;
// Count note categories
for (int i = 0; i < notes.Count; i++)
{
TrackNote note = notes[i];
note.Semitone += Config.Midi.NoteOffset;
if (note.Semitone >= 0 && note.Semitone <= 132)
{
bool skipped = note.Milliseconds < nextPlayable;
bool inRange = IsNoteInsideRange(note);
if (skipped)
{
SkippedNotes++;
}
else
{
nextPlayable = note.Milliseconds + useTime + 2;
if (!inRange)
{
WrappedNotes++;
}
else
{
ValidNotes++;
}
}
}
else
{
SkippedNotes++;
}
}
InvalidateVisual();
}
