public static double KeyRenderYc(this StageVm vm, int keyDex, double stageRenderHeight)
{
var vmHeight = vm.StageVmStyle.VPadding +
(vm.Order - keyDex) * vm.StageVmStyle.KeyLineHeight;
return(vm.RenderHeight(vmHeight, stageRenderHeight));
}
public static void DrawSortableValue(this StageVm stageVm, DrawingContext dc,
SortableItemVm sortableVm,
double stageRenderWidth, double stageRenderHeight)
{
if ((stageRenderHeight <= 0) || (stageRenderHeight <= 0))
{
return;
}
if (sortableVm.StagePos == StagePos.Missing)
{
return;
}
var radius = stageVm.RenderHeight(stageVm.StageVmStyle.KeyLineThickness * 1.5, stageRenderHeight);
var center = stageVm.GetSortableItemPosition(sortableVm, stageRenderWidth, stageRenderHeight);
dc.DrawEllipse(sortableVm.BackgroundBrush, null, center, radius, radius);
if (sortableVm.ShowLabel)
{
var txt = new FormattedText(sortableVm.Label.ToString(),
CultureInfo.CurrentCulture,
FlowDirection.LeftToRight,
SortableItemVm.Typeface,
radius, sortableVm.ForegroundBrush, 1.0);
var upLeft = new Point(center.X - txt.Width / 2, center.Y - txt.Height / 2);
dc.DrawText(txt, upLeft);
}
}
public static void DrawKeyLines(this DrawingContext dc, StageVm stageVm,
double stageRenderWidth, double stageRenderHeight)
{
for (var keyDex = 0; keyDex < stageVm.Order; keyDex++)
{
dc.DrawKeyLine(stageVm, keyDex, stageRenderWidth, stageRenderHeight);
}
}
public static void DrawKeyLine(this DrawingContext dc, StageVm stageVm, int keyDex,
double stageRenderWidth, double stageRenderHeight)
{
var pen = stageVm.KeyLinePen(stageRenderHeight);
var renderY = stageVm.KeyRenderYc(keyDex, stageRenderHeight);
var pointLeft = new Point(0, renderY);
var pointRight = new Point(stageRenderWidth, renderY);
dc.DrawLine(pen, pointLeft, pointRight);
}
public static StageVm SetStageVmStyle(this StageVm stageVm, StageVmStyle stageVmStyle)
{
return(new StageVm(
stageVmStep: stageVm.StageVmStep,
stageIndex: stageVm.StageIndex,
stageVmStyle: stageVmStyle,
order: stageVm.Order,
keyPairVms: stageVm.KeyPairVms,
sortableItemVms: stageVm.SortableItemVms,
sortableItemVmsOld: stageVm.SortableItemVmsOld
));
}
public static StageVm ClearSwitchUses(this StageVm stageVm)
{
return(new StageVm(
stageVmStep: stageVm.StageVmStep,
stageIndex: stageVm.StageIndex,
stageVmStyle: stageVm.StageVmStyle,
order: stageVm.Order,
keyPairVms: stageVm.KeyPairVms.Select(kpvm => kpvm.ResetUseHistory()),
sortableItemVms: stageVm.SortableItemVms,
sortableItemVmsOld: stageVm.SortableItemVmsOld
));
}
public static void DrawSwitch(this DrawingContext dc, StageVm stageVm, KeyPairVm keyPairVm,
double stageRenderWidth, double stageRenderHeight)
{
var pen = stageVm.SwitchLinePen(keyPairVm, stageRenderWidth);
var renderX = stageVm.SectionRenderX(keyPairVm.StageSection, stageRenderWidth);
var renderYLow = stageVm.KeyRenderYl(keyPairVm.LowKey, stageRenderHeight);
var renderYHigh = stageVm.KeyRenderYh(keyPairVm.HiKey, stageRenderHeight);
var pointLow = new Point(renderX, renderYLow);
var pointHigh = new Point(renderX, renderYHigh);
dc.DrawLine(pen, pointLow, pointHigh);
}
public static void DrawSortableValues(this StageVm stageVm, DrawingContext dc,
double stageRenderWidth, double stageRenderHeight)
{
if (stageVm.SortableItemVms == null)
{
return;
}
foreach (var sortableVm in stageVm.SortableItemVms)
{
stageVm.DrawSortableValue(dc, sortableVm, stageRenderWidth, stageRenderHeight);
}
}
public static void DrawSortableValuesAnimate(
this StageVm stageVm,
double pctAlong,
DrawingContext dc,
double stageRenderWidth,
double stageRenderHeight)
{
if (stageVm.SortableItemVms == null)
{
return;
}
for (var i = 0; i < stageVm.SortableItemVms.Length; i++)
{
stageVm.DrawSortableValueAnimate(
stageVm.SortableItemVmsOld[i],
pctAlong,
dc,
stageVm.SortableItemVms[i],
stageRenderWidth,
stageRenderHeight);
}
}
public static Point GetSortableItemPosition(this StageVm stageVm,
SortableItemVm sortableItemVm,
double stageRenderWidth, double stageRenderHeight)
{
if ((stageRenderHeight <= 0) || (stageRenderHeight <= 0))
{
return(new Point(0, 0));
}
if (sortableItemVm.StagePos == StagePos.Missing)
{
return(new Point(0, 0));
}
var renderY = stageVm.KeyRenderYc(sortableItemVm.KeyLinePos, stageRenderHeight);
var radius = stageVm.RenderHeight(stageVm.StageVmStyle.KeyLineThickness * 1.5, stageRenderHeight);
var renderX = 0.0;
switch (sortableItemVm.StagePos)
{
case StagePos.Left:
renderX = radius * -1.2;
break;
case StagePos.Center:
renderX = stageVm.SectionRenderX(sortableItemVm.StageSection, stageRenderWidth);
break;
case StagePos.Right:
renderX = stageRenderWidth - radius * 1.2;
break;
default:
break;
}
return(new Point(renderX, renderY));
}
public static StageVm ToNextStep(this StageVm stageVm, SortableItemVm[] sortableItemVms = null)
{
switch (stageVm.StageVmStep)
{
case StageVmStep.Left:
return(new StageVm(
stageVmStep: StageVmStep.Presort,
stageIndex: stageVm.StageIndex,
stageVmStyle: stageVm.StageVmStyle,
order: stageVm.Order,
keyPairVms: stageVm.KeyPairVms,
sortableItemVms: stageVm.SortableItemVms.ToPreSortStep(stageVm.KeyPairVms.ToArray()),
sortableItemVmsOld: stageVm.SortableItemVms
));
case StageVmStep.Presort:
var newKeypairVms = stageVm.KeyPairVms.UpdateKeyPairVms(stageVm.SortableItemVms);
var newSortableItemVms = stageVm.SortableItemVms.UpdateSortableVms(stageVm.KeyPairVms);
return(new StageVm(
stageVmStep: StageVmStep.PostSort,
stageIndex: stageVm.StageIndex,
stageVmStyle: stageVm.StageVmStyle,
order: stageVm.Order,
keyPairVms: newKeypairVms,
sortableItemVms: newSortableItemVms.ToPostSortStep(stageVm.KeyPairVms.ToArray()),
sortableItemVmsOld: stageVm.SortableItemVms
));
case StageVmStep.PostSort:
return(new StageVm(
stageVmStep: StageVmStep.Right,
stageIndex: stageVm.StageIndex,
stageVmStyle: stageVm.StageVmStyle,
order: stageVm.Order,
keyPairVms: stageVm.KeyPairVms.Select(kvm => kvm.ToInactive()),
sortableItemVms: stageVm.SortableItemVms.ToRightStep(),
sortableItemVmsOld: stageVm.SortableItemVms
));
case StageVmStep.Right:
return(new StageVm(
stageVmStep: StageVmStep.None,
stageIndex: stageVm.StageIndex,
stageVmStyle: stageVm.StageVmStyle,
order: stageVm.Order,
keyPairVms: stageVm.KeyPairVms,
sortableItemVms: null,
sortableItemVmsOld: null
));
case StageVmStep.None:
return(new StageVm(
stageVmStep: StageVmStep.Left,
stageIndex: stageVm.StageIndex,
stageVmStyle: stageVm.StageVmStyle,
order: stageVm.Order,
keyPairVms: stageVm.KeyPairVms,
sortableItemVms: sortableItemVms,
sortableItemVmsOld: null
));
default:
throw new Exception($"{stageVm.StageVmStep} not handled");
}
}
public static double RenderWidth(this StageVm vm, double widthInVm, double stageRenderWidth)
{
return((stageRenderWidth * widthInVm) / vm.VmWidth);
}
public static Pen KeyLinePen(this StageVm stageVm, double stageRenderHeight)
{
var brushHeight = stageVm.RenderHeight(stageVm.StageVmStyle.KeyLineThickness, stageRenderHeight);
return(new Pen(stageVm.StageVmStyle.KeyLineBrush, brushHeight));
}
public static Pen SwitchLinePen(this StageVm stageVm, KeyPairVm keyPairVm, double stageRenderWidth)
{
var brushWidth = stageVm.RenderWidth(stageVm.StageVmStyle.SwitchLineWidth, stageRenderWidth);
return(new Pen(keyPairVm.Brush, brushWidth));
}
public static double SectionRenderX(this StageVm vm, int sectionDex, double stageRenderWidth)
{
var vmX = (sectionDex + 0.5) * (vm.StageVmStyle.SwitchHSpacing);
return(vm.RenderWidth(vmX, stageRenderWidth));
}
public static double RenderHeight(this StageVm vm, double heightInVm, double stageRenderHeight)
{
return((stageRenderHeight * heightInVm) / vm.VmHeight);
}
