public static DrawInfo Create(Rect drawRect, float layoutStartTime, float layoutEndTime, float timelineStartTime, float timelineEndTime)
{
DrawInfo drawInfo = new DrawInfo()
{
layout = new DrawRangeInfo()
{
drawRect = drawRect,
startTime = layoutStartTime,
endTime = layoutEndTime
}
};
timelineStartTime = math.clamp(timelineStartTime, layoutStartTime, layoutEndTime);
timelineEndTime = math.clamp(timelineEndTime, layoutStartTime, layoutEndTime);
float timelineStartPos = drawInfo.GetPixelPosition(timelineStartTime);
float timelineEndPos = drawInfo.GetPixelPosition(timelineEndTime);
drawInfo.timeline = new DrawRangeInfo()
{
drawRect = new Rect(timelineStartPos, drawRect.y, timelineEndPos - timelineStartPos, drawRect.height),
startTime = timelineStartTime,
endTime = timelineEndTime
};
return(drawInfo);
}
public static void DrawLineAtTime(DrawInfo drawInfo, float timeInSeconds, Color color)
{
float position = drawInfo.GetPixelPosition(timeInSeconds);
float textLineHeight = GUI.skin.font.lineHeight;
Rect r = new Rect(position, 0.0f, 1, drawInfo.layout.drawRect.height - textLineHeight);
GUI.color = color;
GUI.DrawTexture(r, EditorGUIUtility.whiteTexture);
GUI.color = Color.white;
}
public static void DrawNotations(
DrawInfo drawInfo,
int sampleRate = 60,
float tickmarkHeight = 32f,
bool above = false,
TimelineViewMode labelFormat = TimelineViewMode.seconds)
{
// first figure out what step I should use
float majorStepSize = 200.0f;
float width = drawInfo.layout.drawRect.width;
float height = drawInfo.layout.drawRect.height;
float numSteps = Mathf.Ceil(width / majorStepSize);
float scale = drawInfo.layout.Duration;
float scaleStep = scale / numSteps;
// Get the time step
float modScale = scaleStep;
float modScaleMult = 1.0f;
while (modScale < 1.0f)
{
modScale *= 10.0f;
modScaleMult *= 10.0f;
}
while (modScale > 10.0f)
{
modScale /= 10.0f;
modScaleMult /= 10.0f;
}
// modify scale to be divisible by 1/2/4/5
if (modScale > 5.0f)
{
modScale = 5.0f;
}
else if (modScale > 2.5f)
{
modScale = 2.5f;
}
else if (modScale > 2.0f)
{
modScale = 2.0f;
}
else
{
modScale = 1.0f;
}
modScale /= modScaleMult;
// with fixed scale need to find our start point
float startOffset = drawInfo.layout.startTime % modScale;
float start = drawInfo.layout.startTime - startOffset;
float rangeEnd = drawInfo.layout.startTime + scale;
float textLineHeight = GUI.skin.font.lineHeight;
float tickmarkHeightSmall = tickmarkHeight * 0.5f;
float tickmarkHeightMedium = tickmarkHeight * 0.75f;
float verticalPosition = above ? height : height - textLineHeight;
// draw
for (int i = -1;; ++i)
{
float point = start + modScale * i;
if (point > rangeEnd)
{
break;
}
// draw minor steps
for (int j = 1; j < 5; ++j)
{
float subPoint = point + (modScale / 5) * j;
float position = drawInfo.GetPixelPosition(subPoint);
float heightThis = (j == 2 ? tickmarkHeightSmall : tickmarkHeightMedium);
Rect r = new Rect(position, verticalPosition - heightThis, 1, heightThis);
GUI.color = k_MinorTickColor;
GUI.DrawTexture(r, EditorGUIUtility.whiteTexture);
}
// draw major step
{
float position = drawInfo.GetPixelPosition(point);
Rect r = new Rect(position, verticalPosition - tickmarkHeight, 1, tickmarkHeight);
GUI.color = k_MajorTickColor;
GUI.DrawTexture(r, EditorGUIUtility.whiteTexture);
string label = string.Empty;
int frame = (int)(point * sampleRate);
switch (labelFormat)
{
case TimelineViewMode.frames:
label = frame.ToString(CultureInfo.InvariantCulture);
break;
case TimelineViewMode.secondsFrames:
label = TimelineUtility.TimeToTimeFrameStr(point, sampleRate);
break;
default:
label = string.Format(scale < 0.1f ? "{0:0.000}" : "{0:0.00}", (float)point);
break;
}
var labelSize = GUI.skin.GetStyle("label").CalcSize(new GUIContent(label));
var labelOffset = labelSize.y - textLineHeight;
float x = position - labelSize.x * 0.5f;
float y;
if (above)
{
y = 0;
}
else
{
y = verticalPosition - labelOffset * 0.5f; // Centered position below guide line
}
var w = labelSize.x + 2;
var h = labelSize.y;
GUI.color = k_MajorTickColor;
GUI.Label(new Rect(x, y, w, h), label);
}
}
}