internal void Render(Region window, DotConsoleRegion owner)
{
int height = Options.Orgin.Y + window.Top + (contentBuffer.GetLengthOfY());
int width = Options.Orgin.X + window.Left + (contentBuffer.GetLengthOfX());
int top = Options.Orgin.Y + window.Top;
int left = Options.Orgin.X + window.Left;
//If we're rendering at the bottom the orgin moves the content up.
if (Options.Position == ContentPosition.Bottom)
{
height = window.Height - Options.Orgin.Y;
int sizeOfY = contentBuffer.GetLengthOfY();
if (sizeOfY < window.Height)
{
top = window.Height - Options.Orgin.Y - (contentBuffer.GetLengthOfY());
}
}
if (Options.WillScrollContent == true)
{
top = Options.Orgin.Y;
}
//Scrollable content regions will not move with the window so theres no point to save state.
else
{
savedContentBuffer = null;
if (owner != null)
{
savedContentBuffer = Restore(owner, new Region()
{
Left = left, Top = top, Height = height, Width = width
});
}
else
{
savedContentBuffer = Renderer.ReadOutput(new Region()
{
Left = left, Top = top, Height = height, Width = width
});
}
}
savedCoordsWithOffset.X = left;
savedCoordsWithOffset.Y = top;
if (owner != null)
{
Merge(owner.contentBuffer, this.contentBuffer);
}
else
{
Renderer.WriteOutput(savedCoordsWithOffset, this.contentBuffer);
}
}
public void WriteOutput(Coordinates orgin, CellBuffer cellBuffer)
{
var handle = GetOutputBuffer();
//Get len of X coordinate, the plan here is to partition by Y
var sizeOfX = cellBuffer.GetLengthOfX() * 4;
//partition by Y coordinate.
int partitionY = (int)Math.Ceiling((decimal)(maxBufferSize / sizeOfX));
var sizeOfY = cellBuffer.GetLengthOfY();
//if Y is smaller then the partition by Y then we need
//to set the partiton size to Y size.
if (sizeOfY < partitionY)
{
partitionY = sizeOfY;
}
//Get partitoned buffer size.
int charBufferSize = (int)(partitionY * cellBuffer.GetLengthOfX());
int cursor = 0;
int i = 0;
do
{
i += partitionY;
//If we exceeded the maximum size of the buffer we need to substract to the size of the remaining buffer.
if (i > sizeOfY)
{
int diff = i - sizeOfY;
i = i - diff;
}
//Fill the buffer part.
ConsoleHostNativeMethods.CHAR_INFO[] buffer = new ConsoleHostNativeMethods.CHAR_INFO[charBufferSize];
int idx = 0;
for (int y = cursor; y < i; y++)
{
for (int x = 0; x < cellBuffer.GetLengthOfX(); x++)
{
var cellToWrite = cellBuffer[y, x];
if (cellToWrite.Attributes == 0)
{
//Don't set the foreground color for empty cells this will force the ConsoleHost
//to do a very expensive calculation for each cell and slow things down.
cellToWrite.Attributes = (ushort)DotConsoleNative.ToNativeConsoleColor(0, BackgroundColor);
}
buffer[idx].Attributes = cellToWrite.Attributes;
buffer[idx].UnicodeChar = cellToWrite.Char;
idx++;
}
}
ConsoleHostNativeMethods.COORD bufferSize = new ConsoleHostNativeMethods.COORD();
bufferSize.X = (short)cellBuffer.GetLengthOfX();
bufferSize.Y = (short)partitionY;
ConsoleHostNativeMethods.COORD bufferCoord = new ConsoleHostNativeMethods.COORD();
bufferCoord.X = 0;
bufferCoord.Y = 0;
ConsoleHostNativeMethods.SMALL_RECT writeRegion = new ConsoleHostNativeMethods.SMALL_RECT();
writeRegion.Left = (short)orgin.X;
writeRegion.Top = (short)(orgin.Y + cursor);
writeRegion.Right = (short)(orgin.X + bufferSize.X);
writeRegion.Bottom = (short)(orgin.Y + cursor + bufferSize.Y);
DotConsoleNative.WriteConsoleOutput(handle, buffer, bufferSize, bufferCoord, ref writeRegion);
cursor = i;
}while (i < sizeOfY);
}