/// <summary>
/// update the movement value according the dimension placement value.
/// copies from ctrl.cpp updateMoveValue
/// </summary>
/// <param name="placementData"></param>
/// <param name="actualMove"></param>
/// <param name="placementDim"></param>
/// <returns></returns>
static int updateMoveValue(PlacementData placementData, int actualMove, PlacementDim placementDim, int prevAxeMove, bool containerRightToLeft)
{
float remainder;
float result;
int move;
int place = placementData.getPlacement(placementDim, containerRightToLeft);
float accMove = placementData.getAccCtrlMove(placementDim);
if (place > 0 && place < 100)
{
result = (float)(actualMove * place) / 100;
move = (int)((actualMove * place) / 100);
remainder = result - move;
accMove += remainder;
if (accMove >= 1 || accMove <= -1)
{
move += (int)accMove;
if (move > 0)
{
accMove -= 1;
}
else
{
accMove += 1;
}
}
}
else
if (place == 0) // no placement
{
move = 0;
}
else
{
move = actualMove; // placement is 100%
}
placementData.setAccCtrlMove(placementDim, accMove);
return(move);
}
/// <summary>
/// Fix Rounding mistakes caused by placement calculations
/// </summary>
/// <param name="originPlacement"> placement of the origine (x or y placement) </param>
/// <param name="lengthPlacement"> widht or height placement (dx or dy placement)</param>
/// <param name="totalChange"> total change for control</param>
/// <param name="axe"> X or Y axe</param>
/// <param name="placementData"> placement data</param>
/// <param name="containerRightToLeft">RightToLeft</param>
/// <returns></returns>
static int fixRounding(int originPlacement, int lengthPlacement, int totalChange, Axe axe, PlacementData placementData, bool containerRightToLeft)
{
PlacementDim originPlacementDim = axe == Axe.X ? PlacementDim.PLACE_X : PlacementDim.PLACE_Y;
PlacementDim lengthPlacementDim = axe == Axe.X ? PlacementDim.PLACE_DX : PlacementDim.PLACE_DY;
if (placementData.getPlacement(originPlacementDim, containerRightToLeft) + placementData.getPlacement(lengthPlacementDim, containerRightToLeft) == 100)
{
//total placement is 100% this means that originPlacement + lengthPlacement MUST BE EQUAL to totalChange
//there are may be some mistakes caused by rounding of float numbers to integer, we must fix them
//If these small mistakes are not fix - scroll bar might be created when it is not needed
if (Math.Abs(originPlacement + lengthPlacement) != Math.Abs(totalChange))
{
int diff = totalChange - (originPlacement + lengthPlacement);
float accMove = placementData.getAccCtrlMove(lengthPlacementDim);
//recalculate length placement
lengthPlacement += diff;
//update AccCtrlMove for future placement
placementData.setAccCtrlMove(lengthPlacementDim, accMove + diff);
}
}
return(lengthPlacement);
}