private void Draw(double x, double y, double currentLineHeight, double contentXEnd, double contentYEnd, Queue <VisioShape> components)
{
while (components.Count > 0)
{
VisioShape toDraw = components.Dequeue();
double toDrawWidth = toDraw.MarginLeft + toDraw.Width + toDraw.MarginRight; //expected increase in x
double toDrawHeight = toDraw.MarginTop + toDraw.Height + toDraw.MarginBottom; //expected height in y
PrepareContainerExpansion(x, y, toDrawWidth, 0); //if the container streches to support the drawing, the container height does not need to change
if ((toManage.CenterX + (toManage.Width / 2.0)) < (x + toDrawWidth)) //the new component does not fit next to the last component on the same line in the container
{
x = toManage.CenterX - (toManage.Width / 2.0); //go to a new line
y -= currentLineHeight; //the new line of components should not overlap with the one above
PrepareContainerExpansion(x, y, 0, toDrawHeight);
}
double dropX = x + toDraw.MarginLeft + (toDraw.Width / 2.0);
double dropY = y - toDraw.MarginTop - (toDraw.Height / 2.0);
double deltaX = dropX - toDraw.CenterX;
double deltaY = dropY - toDraw.CenterY;
toDraw.CenterX = dropX;
toDraw.CenterY = dropY;
if (toDraw is RationallyContainer)
{
foreach (VisioShape c in ((RationallyContainer)toDraw).Children)
{
c.CenterX += deltaX;
c.CenterY += deltaY;
c.MoveChildren(deltaX, deltaY);
}
}
else
{
toDraw.MoveChildren(deltaX, deltaY);
}
x = x + toDrawWidth;
currentLineHeight = Math.Max(currentLineHeight, toDrawHeight);
contentXEnd = Math.Max(contentXEnd, dropX + (toDrawWidth / 2.0));
contentYEnd = Math.Min(contentYEnd, y - toDrawHeight);
}
//the container might still be not high enough, if the initial height is very small and expandX is true
if (((toManage.UsedSizingPolicy & SizingPolicy.ExpandYIfNeeded) > 0) && (currentLineHeight > toManage.Height))
{
double topLeftY = toManage.CenterY + (toManage.Height / 2.0);
toManage.Height = currentLineHeight;
toManage.CenterY = topLeftY - (toManage.Height / 2.0);
}
ShrinkContainer(contentXEnd, contentYEnd);
}
/// <summary>
/// Places the component first in line in the container, at (x,y)
/// </summary>
/// <param name="x">top left x-coordinate to start drawing the component.</param>
/// <param name="y">top left y-coordinate to start drawing the component.</param>
/// <param name="components">Queue of components to draw.</param>
private void Draw(double x, double y, Queue <VisioShape> components)
{
while (components.Count > 0)
{
VisioShape toDraw = components.Dequeue();
double totalWidthToDraw = toDraw.MarginLeft + toDraw.Width + toDraw.MarginRight;
double totalHeightToDraw = toDraw.MarginTop + toDraw.Height + toDraw.MarginBottom;
//allow container to stretch horizontally and/or vertically if the content component overflows in those directions
PrepareContainerExpansion(x, y, totalWidthToDraw, totalHeightToDraw);
//this layout stacks components vertically and stretches them horizontally to the width of the container
StretchComponentIfNeeded(toDraw, toManage.Width);
//calculate position to draw this component
double drawX = x + (toDraw.Width / 2.0) + toDraw.MarginLeft;
double drawY = y - (toDraw.Height / 2.0) - toDraw.MarginTop;
double deltaX = drawX - toDraw.CenterX;
double deltaY = drawY - toDraw.CenterY;
if (toDraw is RationallyContainer)
{
foreach (VisioShape c in ((RationallyContainer)toDraw).Children)
{
if (c.Shape.ContainerProperties != null)
{
//moving children will disband the composite pattern between the shapes => remember children and later rebuild the pattern
c.StoreChildren();
c.MoveChildren(deltaX, deltaY);
}
c.CenterX += deltaX;
c.CenterY += deltaY;
if (c.Shape.ContainerProperties != null)
{
c.RestoreChildren();
}
}
}
else
{
toDraw.MoveChildren(deltaX, deltaY);
}
toDraw.CenterX = drawX;
toDraw.CenterY = drawY;
//update x and y for the next component
//x remains the same
y = y - (toDraw.MarginTop + toDraw.Height + toDraw.MarginBottom);
}
ShrinkContainer(y); //y points below the last added component
}