private int GetClippedWidth(int viewHolderWidth, float dX, int measured)
{
if (viewHolderWidth <= 0)
{
return(0);
}
return(Math.Min(measured, (int)Math.Ceil(Math.Abs(dX))));
}
public bool OnTouch(View v, MotionEvent e)
{
_scaleDetector.OnTouchEvent(e);
PointF curr = new PointF(e.GetX(), e.GetY());
switch (e.Action)
{
case MotionEventActions.Down:
_last.Set(curr);
_start.Set(_last);
_mode = Dragging;
break;
case MotionEventActions.Move:
if (_mode == Dragging)
{
float deltaX = curr.X - _last.X;
float deltaY = curr.Y - _last.Y;
float fixTransX = GetFixDragTrans(deltaX, _viewWidth, OrigWidth * _saveScale);
float fixTransY = GetFixDragTrans(deltaY, _viewHeight, OrigHeight * _saveScale);
Matrix.PostTranslate(fixTransX, fixTransY);
FixTrans();
_last.Set(curr.X, curr.Y);
}
break;
case MotionEventActions.Up:
_mode = None;
var xDiff = (int)Math.Abs(curr.X - _start.X);
var yDiff = (int)Math.Abs(curr.Y - _start.Y);
if (xDiff < Clicking && yDiff < Clicking)
{
PerformClick();
}
break;
case MotionEventActions.PointerUp:
_mode = None;
break;
}
ImageMatrix = _matrix;
Invalidate();
return(true); // indicate event was handled
}
public float distortInverse(float radius)
{
float r0 = radius / 0.9F;
float r1 = radius * 0.9F;
float dr0 = radius - distort(r0);
while (Math.Abs(r1 - r0) > 0.0001D)
{
float dr1 = radius - distort(r1);
float r2 = r1 - dr1 * ((r1 - r0) / (dr1 - dr0));
r0 = r1;
r1 = r2;
dr0 = dr1;
}
return(r1);
}
public static int largestAbsComponent(Vector3d v)
{
double xAbs = Math.Abs(v.x);
double yAbs = Math.Abs(v.y);
double zAbs = Math.Abs(v.z);
if (xAbs > yAbs)
{
if (xAbs > zAbs)
{
return(0);
}
return(2);
}
if (yAbs > zAbs)
{
return(1);
}
return(2);
}
protected override void OnDraw(Canvas canvas)
{
base.OnDraw(canvas);
int hourHeight = mHourHeight;
Paint dividerPaint = mDividerPaint;
dividerPaint.Color = mDividerColor;
dividerPaint.SetStyle(Paint.Style.Fill);
Paint labelPaint = mLabelPaint;
labelPaint.Color = mLabelColor;
labelPaint.TextSize = mLabelTextSize;
labelPaint.SetTypeface(Typeface.DefaultBold);
labelPaint.AntiAlias = true;
var metrics = labelPaint.GetFontMetricsInt();
int labelHeight = Math.Abs(metrics.Ascent);
int labelOffset = labelHeight + mLabelPaddingLeft;
int right = Right;
// Walk left side of canvas drawing timestamps
int hours = mEndHour - mStartHour;
for (int i = 0; i < hours; i++)
{
int dividerY = hourHeight * i;
int nextDividerY = hourHeight * (i + 1);
canvas.DrawLine(0, dividerY, right, dividerY, dividerPaint);
// draw text title for timestamp
canvas.DrawRect(0, dividerY, mHeaderWidth, nextDividerY, dividerPaint);
// TODO: localize these labels better, including handling
// 24-hour mode when set in framework.
int hour = mStartHour + i;
String label;
if (hour == 0)
{
label = "12am";
}
else if (hour <= 11)
{
label = hour + "am";
}
else if (hour == 12)
{
label = "12pm";
}
else
{
label = (hour - 12) + "pm";
}
float labelWidth = labelPaint.MeasureText(label);
canvas.DrawText(label, 0, label.Length, mHeaderWidth - labelWidth - mLabelPaddingLeft, dividerY + labelOffset, labelPaint);
}
}
