void DrawRuler(
Rect position,
float frameRate,
TimelineViewMode timeFormat)
{
if (float.IsNaN(position.x) || float.IsNaN(position.xMax) || float.IsNaN(worldBound.x) || float.IsNaN(worldBound.xMax))
{
return;
}
Rect shownArea = new Rect(m_DrawInfo.layout.startTime, -90f, m_DrawInfo.layout.Duration, .05f);
Color backupCol = GUI.color;
GUI.BeginGroup(position);
Color tempBackgroundColor = GUI.backgroundColor;
m_TickHandler.SetRanges(m_DrawInfo.layout.startTime, m_DrawInfo.layout.endTime, worldBound.x, worldBound.xMax);
m_TickHandler.SetTickStrengths(kTickRulerDistMin, kTickRulerDistFull, true);
int labelLevel = m_TickHandler.GetLevelWithMinSeparation(kTickRulerDistLabel);
if (Event.current.type == EventType.Repaint)
{
var originalColor = GUI.color;
// Draw tick markers of various sizes
for (int tickLevel = 0; tickLevel < m_TickHandler.tickLevels; tickLevel++)
{
float strength = m_TickHandler.GetStrengthOfLevel(tickLevel) * .9f;
m_TickCache.Clear();
m_TickHandler.GetTicksAtLevel(tickLevel, true, m_TickCache);
for (int i = 0; i < m_TickCache.Count; i++)
{
if (m_TickCache[i] < k_RangeMin || m_TickCache[i] > k_RangeMax)
{
continue;
}
float frame = Mathf.Round(m_TickCache[i] * frameRate);
float height = position.height * Mathf.Min(1, strength) * kTickRulerHeightMax;
float x = FrameToPixel(frame, frameRate, position, shownArea);
// Draw line
float minY = position.height - height + 0.5f;
float maxY = position.height - 0.5f;
GUI.color = tickLevel >= labelLevel ? TimelineWidget.k_MajorTickColor : TimelineWidget.k_MinorTickColor;
Rect r = new Rect(new Vector2(x - .5f, minY),
new Vector2(1, maxY - minY)
);
GUI.DrawTexture(r, EditorGUIUtility.whiteTexture);
}
}
GUI.color = originalColor;
}
// Draw tick labels
m_TickCache.Clear();
m_TickHandler.GetTicksAtLevel(labelLevel, false, m_TickCache);
for (int i = 0; i < m_TickCache.Count; i++)
{
if (m_TickCache[i] < k_RangeMin || m_TickCache[i] > k_RangeMax)
{
continue;
}
float frame = Mathf.Round(m_TickCache[i] * frameRate);
// Important to take floor of positions of GUI stuff to get pixel correct alignment of
// stuff drawn with both GUI and Handles/GL. Otherwise things are off by one pixel half the time.
float labelPos = FrameToPixel(frame, frameRate, position, shownArea);
string label = TimelineUtility.GetTimeString(timeFormat, m_TickCache[i], (int)frameRate);
var labelSize = GUI.skin.GetStyle("label").CalcSize(new GUIContent(label));
float x = labelPos + 3;
float y = -1;
float w = labelSize.x + 2;
float h = labelSize.y;
GUI.Label(new Rect(x, y, w, h),
label,
TimeAreaStyles.timelineTick);
}
GUI.EndGroup();
GUI.backgroundColor = tempBackgroundColor;
GUI.color = backupCol;
}
void PrepareTicks()
{
m_HTicks.SetRanges(m_TimeArea.shownArea.xMin, m_TimeArea.shownArea.xMax, m_TimeArea.drawRect.xMin, m_TimeArea.drawRect.xMax);
m_HTicks.SetTickStrengths(TimeArea.kTickRulerDistMin, TimeArea.kTickRulerDistFull, true);
}