public override List <TextDataChunk> measureChunks(List <TextDataChunk> dataChunks, SpriteFont font)
{
for (int i = 0; i < dataChunks.Count; i++)
{
TextDataChunk chunk = dataChunks[i];
chunk.font = font;
Vector2 stringDimensions = font.MeasureString(chunk.data);
chunk.dimensions = new Rectangle(0, 0, (int)Math.Ceiling(stringDimensions.X), (int)Math.Ceiling(stringDimensions.Y));
//we need to put it back in place because TextDataChunk is a struct which is passed by VALUE, not REFERENCE
dataChunks[i] = chunk;
}
return(dataChunks);
}
public override List <TextDataChunk> chunkThis(string StringDataIn)
{
List <TextDataChunk> retval = new List <TextDataChunk>();
String[] rawChunks = StringDataIn.Split(SPLITTER.ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < rawChunks.Length; i++)
{
TextDataChunk newChunk = new TextDataChunk();
newChunk.data = rawChunks[i];
retval.Add(newChunk);
}
return(retval);
}
public override List <TextDataPage> paginateChunks(List <TextDataChunk> dataChunks, SpriteFont font, Rectangle boundingBox)
{
List <TextDataPage> retval = new List <TextDataPage>();
TextDataPage currentPage = new TextDataPage();
retval.Add(currentPage);
if (DEBUG_THIS)
{
Debug.WriteLine("dataChunks: " + dataChunks.Count);
}
List <TextDataChunk> measuredChunks = this.measureChunks(dataChunks, font);
if (DEBUG_THIS)
{
Debug.WriteLine("measuredChunks: " + measuredChunks.Count);
}
int currentX = boundingBox.X;
int currentY = boundingBox.Y;
for (int i = 0; i < measuredChunks.Count; i++)
{
TextDataChunk chunk = measuredChunks[i];
//does it fit on the current line?
if ((currentX + chunk.dimensions.Width) < boundingBox.Width)
{
//yes, add it to the current line and advance the pointer
AdvancePointer(font, ref currentX, currentY, ref chunk);
}
else
{
//OK, can we fit it on the next line?
// We have to double the chunk.dimensions.Height because Y is the TOP of the line and we need to find where the BOTTOM of the line is
if (DEBUG_THIS)
{
Debug.WriteLine("Checking next line height: currentY/expectedNextY/boundingBoxHeight: " + currentY + "/" +
(currentY + (chunk.dimensions.Height * 2) + SPACER_BUFFER_Y) + "/" +
boundingBox.Height);
}
//This can be a <= and not a < because if it exactly matches, the bottom of the final line will perfectly fit in the box
if ((currentY + (chunk.dimensions.Height * 2) + SPACER_BUFFER_Y) <= boundingBox.Height)
{
//yes, line return
currentX = boundingBox.X;
currentY += (chunk.dimensions.Height + SPACER_BUFFER_Y);
AdvancePointer(font, ref currentX, currentY, ref chunk);
}
else
{
//nope-- add a new page
if (DEBUG_THIS)
{
Debug.WriteLine("Page " + (retval.Count - 1) + " has chunk count " + currentPage.DataChunks.Count);
}
currentPage = new TextDataPage();
retval.Add(currentPage);
currentX = boundingBox.X;
currentY = boundingBox.Y;
AdvancePointer(font, ref currentX, currentY, ref chunk);
}
}
if (DEBUG_THIS)
{
Debug.WriteLine("Chunk " + i + ": \"" + chunk.data + "\" " +
" Width/X/Xmax: " + chunk.dimensions.Width.ToString() + "/" + chunk.dimensions.X.ToString() + "/" + boundingBox.Width +
" Height/Y/Ymax: " + chunk.dimensions.Height.ToString() + "/" + chunk.dimensions.Y.ToString() + "/" + boundingBox.Height
);
}
currentPage.DataChunks.Add(chunk);
}
return(retval);
}
private void AdvancePointer(SpriteFont font, ref int currentX, int currentY, ref TextDataChunk chunk)
{
chunk.dimensions.X = currentX;
chunk.dimensions.Y = currentY;
currentX += (chunk.dimensions.Width + (int)(getSpacerDimensions(font).X) + SPACER_BUFFER_X);
}
