public PeriodChoiceControl()
{
Model = new PeriodChoiceControlModel();
InitializeComponent();
ControlGrid.DataContext = this;
}
public static void ResetFlags(this PeriodChoiceControlModel model)
{
model.BtnFromIsHolded = false;
model.BtnToIsHolded = false;
model.CentralPartIsHolded = false;
model.CentralPartDoubleClick = false;
}
public static void SetPositions(this PeriodChoiceControlModel model, double btnFromMarginLeft, double centerPartWidth)
{
model.BtnFromMargin = new Thickness(btnFromMarginLeft, 0, 0, 0);
model.LeftPartWidth = btnFromMarginLeft + 4;
model.CenterPartMargin = new Thickness(model.LeftPartWidth, 0, 0, 0);
model.CenterPartWidth = centerPartWidth;
model.BtnToMargin = new Thickness(btnFromMarginLeft + centerPartWidth - 1, 0, -4, 0);
model.RightPartMargin = new Thickness(model.LeftPartWidth + model.CenterPartWidth - 1, 0, 0, 0);
}
public static void ReactCentralPartDoubleClick(this PeriodChoiceControlModel model, double x, double controlActualWidth)
{
if (model.CentralPartDoubleClick)
{
model.ShrinkAroundX(x, controlActualWidth);
}
else
{
model.SetPositions(-4, controlActualWidth); // expand central part all over control
}
model.CentralPartDoubleClick = !model.CentralPartDoubleClick;
}
private static void ShrinkAroundX(this PeriodChoiceControlModel model, double x, double controlActualWidth)
{
double left = x - PeriodChoiceControlModel.MinCenterPartWidth / 2;
if (left < -4)
{
left = -4;
}
if (left > controlActualWidth - PeriodChoiceControlModel.MinCenterPartWidth - 4)
{
left = controlActualWidth - PeriodChoiceControlModel.MinCenterPartWidth - 4;
}
model.SetPositions(left, PeriodChoiceControlModel.MinCenterPartWidth);
}
public static void ReactBtnToPreviewMouseMove(this PeriodChoiceControlModel model, double x, double rightPartWidth)
{
var delta = x - model.BtnToStartX;
model.BtnToStartX = x;
if (model.CenterPartWidth - PeriodChoiceControlModel.MinCenterPartWidth + delta < 0)
{
return;
}
if (rightPartWidth - delta <= 0)
{
return;
}
model.BtnToMargin = new Thickness(model.BtnToMargin.Left + delta, 0, -4, 0);
model.CenterPartWidth += delta;
}
public static void ReactBtnFromPreviewMouseMove(this PeriodChoiceControlModel model, double x)
{
var delta = x - model.BtnFromStartX;
model.BtnFromStartX = x;
if (delta > model.CenterPartWidth - PeriodChoiceControlModel.MinCenterPartWidth)
{
return;
}
if (model.BtnFromMargin.Left + delta < -4)
{
delta = -model.BtnFromMargin.Left - 4;
}
model.BtnFromMargin = new Thickness(model.BtnFromMargin.Left + delta, 0, 0, 0);
model.LeftPartWidth = model.BtnFromMargin.Left + 4;
model.CenterPartMargin = new Thickness(model.LeftPartWidth, 0, 0, 0);
model.CenterPartWidth -= delta;
}
public static void ReactCentralPartPreviewMouseMove(this PeriodChoiceControlModel model, double x, double rightPartWidth)
{
var delta = x - model.CentralPartStartX;
model.CentralPartStartX = x;
if (model.BtnFromMargin.Left + delta < -4)
{
delta = -model.BtnFromMargin.Left - 4;
}
if (rightPartWidth - delta <= 0)
{
return;
}
model.BtnFromMargin = new Thickness(model.BtnFromMargin.Left + delta, 0, 0, 0);
model.LeftPartWidth = model.BtnFromMargin.Left + 4;
model.CenterPartMargin = new Thickness(model.LeftPartWidth, 0, 0, 0);
model.BtnToMargin = new Thickness(model.BtnToMargin.Left + delta, 0, -4, 0);
}
public static void ReactBtnFromPreviewMouseDown(this PeriodChoiceControlModel model, double x)
{
model.BtnFromIsHolded = true;
model.BtnFromStartX = x;
}
public static void ReactCentralPartPreviewMouseDown(this PeriodChoiceControlModel model, double x)
{
model.CentralPartIsHolded = true;
model.CentralPartStartX = x;
}
