public void Render(IGraphicsContext context)
{
lock (_locker)
{
if (_brushBackground == null)
{
_brushBackground = new BasicBrush(_backgroundColor);
_penTransparent = new BasicPen();
_penBorder = new BasicPen(new BasicBrush(_borderColor), 1);
_rectText = context.MeasureText("12345:678.90", new BasicRectangle(0, 0, Frame.Width, Frame.Height), "HelveticaNeue", 10);
}
}
_density = context.Density;
Frame = new BasicRectangle(0, 0, context.BoundsWidth, context.BoundsHeight);
context.DrawRectangle(new BasicRectangle(0, 0, context.BoundsWidth, context.BoundsHeight), _brushBackground, _penTransparent);
if (_audioFile == null || _audioFileLength == 0)
return;
// Check if scale type needs to be updated
if (_lastWidth != ContentSize.Width)
{
_lastWidth = ContentSize.Width;
CalculateScale(context.Density);
}
// Draw scale borders
//Console.WriteLine("WaveFormScaleView - scaleType: {0} totalMinutes: {1} totalSeconds: {2} totalMinutesScaled: {3} totalSecondsScaled: {4}", scaleType.ToString(), totalMinutes, totalSeconds, totalMinutesScaled, totalSecondsScaled);
context.SetPen(_penBorder);
context.StrokeLine(new BasicPoint(0, ContentSize.Height - 1), new BasicPoint(ContentSize.Width, ContentSize.Height - 1));
int firstVisibleIndex = (int)Math.Floor(ContentOffset.X / _tickWidth);
int lastVisibleIndex = firstVisibleIndex + (int)Math.Floor(context.BoundsWidth / _tickWidth);
float tickX = -ContentOffset.X + (firstVisibleIndex * _tickWidth);
int majorTickIndex = (int)Math.Ceiling(firstVisibleIndex / 10f);
//for (int a = firstVisibleIndex; a < _tickCount; a++)
for (int a = firstVisibleIndex; a < lastVisibleIndex; a++)
{
// Ignore ticks out of bounds
bool isMajorTick = ((a % 10) == 0);
if (tickX >= 0 && tickX <= Frame.Width)
{
//Console.WriteLine("####> WaveFormView - Scale - tick {0} x: {1} isMajorTick: {2} tickCount: {3}", a, tickX, isMajorTick, tickCount);
if(isMajorTick)
// //context.DrawLine(new BasicPoint(tickX, context.BoundsHeight - (context.BoundsHeight / 1.25f)), new BasicPoint(tickX, context.BoundsHeight), _penMajorTick);
context.StrokeLine(new BasicPoint(tickX, 0), new BasicPoint(tickX, ContentSize.Height - 1));
else
context.StrokeLine(new BasicPoint(tickX, ContentSize.Height - (ContentSize.Height / 6) - 1), new BasicPoint(tickX, ContentSize.Height - 1));
if (isMajorTick)
{
// Draw dashed traversal line for major ticks
context.StrokeLine(new BasicPoint(tickX, ContentSize.Height - 1), new BasicPoint(tickX, ContentSize.Height - 1));
// Determine major scale text
int minutes = 0;
int seconds = 0;
switch (_scaleType)
{
case WaveFormScaleType._10minutes:
minutes = majorTickIndex * 10;
seconds = 0;
break;
case WaveFormScaleType._5minutes:
minutes = majorTickIndex * 5;
seconds = 0;
break;
case WaveFormScaleType._2minutes:
minutes = majorTickIndex * 2;
seconds = 0;
break;
case WaveFormScaleType._1minute:
minutes = majorTickIndex;
seconds = 0;
break;
case WaveFormScaleType._30seconds:
minutes = (int)Math.Floor(majorTickIndex / _scaleMultiplier);
seconds = (majorTickIndex % _scaleMultiplier == 0) ? 0 : 30;
break;
case WaveFormScaleType._10seconds:
minutes = (int)Math.Floor(majorTickIndex / _scaleMultiplier);
seconds = ((int)Math.Floor(majorTickIndex % _scaleMultiplier)) * 10;
break;
case WaveFormScaleType._5seconds:
minutes = (int)Math.Floor(majorTickIndex / _scaleMultiplier);
seconds = ((int)Math.Floor(majorTickIndex % _scaleMultiplier)) * 5;
break;
case WaveFormScaleType._1second:
minutes = (int)Math.Floor(majorTickIndex / _scaleMultiplier);
seconds = (int)Math.Floor(majorTickIndex % _scaleMultiplier);
break;
}
// Draw text at every major tick (minute count)
string scaleMajorTitle = string.Format("{0}:{1:00}", minutes, seconds);
//float y = ContentSize.Height - (ContentSize.Height/12f) - _rectText.Height - (0.5f * context.Density);
float y = 3 * context.Density;//ContentSize.Height - _rectText.Height - (10 * context.Density);
context.DrawText(scaleMajorTitle, new BasicPoint(tickX + (4 * context.Density), y), _textColor, FontFace, FontSize);
}
}
if(isMajorTick)
majorTickIndex++;
tickX += _tickWidth;
}
}
private void DrawLoops(IGraphicsContext context, float cursorHeight, float realScrollBarHeight)
{
if (_loop != null)
{
for (int a = 0; a < _loop.Segments.Count; a++)
{
var nextSegment = _loop.GetNextSegment(a);
float segmentPositionPercentage = (float)_loop.Segments[a].PositionBytes / (float)Length;
float startX = (segmentPositionPercentage * ContentSize.Width) - ContentOffset.X;
float nextSegmentPositionPercentage = 0;
float endX = 0;
if (nextSegment != null)
{
nextSegmentPositionPercentage = (float)nextSegment.PositionBytes / (float)Length;
endX = (nextSegmentPositionPercentage * ContentSize.Width) - ContentOffset.X;
}
// Draw loop lines
//var pen = _markers[a].MarkerId == _activeMarkerId ? _penSelectedMarkerLine : _penMarkerLine;
context.SetPen(_penLoopLine);
context.StrokeLine(new BasicPoint(startX, 0), new BasicPoint(startX, cursorHeight));
// Draw text
//var rectText = new BasicRectangle(startX, Frame.Height - 12, 12, 12);
var rectText = new BasicRectangle(startX, Frame.Height - realScrollBarHeight -12, endX > startX ? endX - startX : 12, 12);
//var brush = _markers [a].MarkerId == _activeMarkerId ? _brushSelectedMarkerBackground : _brushMarkerBackground;
context.DrawRectangle(rectText, _brushLoopBackground, _penTransparent);
context.DrawText((a+1).ToString(), new BasicPoint(startX + 2, Frame.Height - realScrollBarHeight - 12), _textColor, LetterFontFace, LetterFontSize);
}
}
}
private void DrawCursors(IGraphicsContext context, float heightAvailable, float cursorHeight, float scrollBarCursorX)
{
// Draw cursor line
context.SetPen(_penCursorLine);
context.StrokeLine(new BasicPoint(_cursorX, 0), new BasicPoint(_cursorX, cursorHeight));
context.StrokeLine(new BasicPoint(scrollBarCursorX, cursorHeight), new BasicPoint(scrollBarCursorX, heightAvailable));
// Check if a secondary cursor must be drawn (i.e. when changing position)
if (ShowSecondaryPosition)
{
float secondaryPositionPercentage = (float)SecondaryPosition / (float)Length;
_secondaryCursorX = (secondaryPositionPercentage * ContentSize.Width) - ContentOffset.X;
_secondaryCursorX = (float)Math.Round(_secondaryCursorX * 2) / 2; // Round to 0.5
//Console.WriteLine("secondaryPositionPercentage: {0} secondaryCursorX: {1}", secondaryPositionPercentage, _secondaryCursorX);
// Draw cursor line
context.SetPen(_penSecondaryCursorLine);
context.StrokeLine(new BasicPoint(_secondaryCursorX, 0), new BasicPoint(_secondaryCursorX, cursorHeight));
}
}
private void DrawMarkers(IGraphicsContext context, float cursorHeight)
{
for (int a = 0; a < _markers.Count; a++)
{
float xPct = (float)_markers[a].PositionBytes / (float)Length;
float x = (xPct * ContentSize.Width) - ContentOffset.X;
// Draw cursor line
var pen = _markers[a].MarkerId == _activeMarkerId ? _penSelectedMarkerLine : _penMarkerLine;
context.SetPen(pen);
context.StrokeLine(new BasicPoint(x, 0), new BasicPoint(x, cursorHeight));
// Draw text
var rectText = new BasicRectangle(x, 0, 12, 12);
var brush = _markers[a].MarkerId == _activeMarkerId ? _brushSelectedMarkerBackground : _brushMarkerBackground;
context.DrawRectangle(rectText, brush, _penTransparent);
string letter = Conversion.IndexToLetter(a).ToString();
context.DrawText(letter, new BasicPoint(x + 2, 0), _textColor, LetterFontFace, LetterFontSize);
}
}