public void DrawAt(string text, TvPoint location, int zIndex, CharacterAttribute attr)
{
var start = location.Left + (Width * location.Top);
var end = start + Math.Min(text.Length, Width - location.Left - 1);
var textIdx = 0;
var dirty = IsDirty;
var charCol = location.Left;
var charRow = location.Top;
for (var idx = start; idx < end; idx++)
{
var cchar = _buffer[idx];
var newchar = text[textIdx];
if (cchar.ZIndex <= zIndex)
{
var comparison = cchar.CompareContents(newchar, attr);
if (comparison != ConsoleCharacterComparison.Equals)
{
cchar.Character = newchar;
cchar.Attributes = attr;
cchar.ZIndex = zIndex;
dirty = true;
_dirtyMap[idx] = (DirtyStatus)comparison;
}
cchar.ZIndex = zIndex;
}
textIdx++;
charCol++;
}
IsDirty = dirty;
}
public void CopyCharacter(TvPoint location, ConsoleCharacter charToCopy, int count)
{
var start = location.Left + (Width * location.Top);
var zindex = charToCopy.ZIndex;
var end = start + Math.Min(count, Width - location.Left - 1);
var charCol = location.Left;
var charRow = location.Top;
var dirty = IsDirty;
for (var idx = start; idx < end; idx++)
{
var cchar = _buffer[idx];
if (cchar.ZIndex <= zindex)
{
var comparison = cchar.CompareContents(charToCopy.Character, charToCopy.Attributes);
if (comparison != ConsoleCharacterComparison.Equals)
{
cchar.Character = charToCopy.Character;
cchar.Attributes = charToCopy.Attributes;
cchar.ZIndex = charToCopy.ZIndex;
dirty = true;
_dirtyMap[idx] = (DirtyStatus)comparison;
}
cchar.ZIndex = zindex;
}
charCol++;
}
IsDirty = dirty;
}
public static void DrawStringAt(string text, TvPoint location, CharacterAttribute attr, IViewport boxModel, VirtualConsole console)
{
var consoleLocation = ViewPointToConsolePoint(location, boxModel.Position);
var zindex = boxModel.ZIndex;
if (boxModel.Columns < text.Length)
{
text = text.Substring(0, boxModel.Columns);
}
console.DrawAt(text, consoleLocation, zindex, attr);
}
internal static void DrawChars(char value, int count, TvPoint location, CharacterAttribute attribute, IViewport boxModel, VirtualConsole console)
{
var chars = new ConsoleCharacter[count];
var zindex = boxModel.ZIndex;
var cc = new ConsoleCharacter()
{
Character = value, Attributes = attribute, ZIndex = zindex
};
var pos = ViewPointToConsolePoint(location, boxModel.Position);
console.CopyCharacter(pos, cc, count);
}
public static IViewport InnerViewport(this IViewport containerViewport, TvPoint pos, int cols, int rows)
{
var vppos = pos + containerViewport.Position;
var displacement = pos;
var availableCols = containerViewport.Columns - displacement.Left;
var availableRows = containerViewport.Rows - displacement.Top;
var vpCols = cols < availableCols ? cols : availableCols;
var vpRows = rows < availableRows ? rows : availableRows;
var vp = new Viewport(vppos, vpCols, vpRows, containerViewport.ZIndex);
return(vp);
}
public static IViewport InnerViewport(this IViewport containerViewport, IViewport innerViewport, TvPoint displacement)
{
if (innerViewport == null)
{
return(new Viewport(TvPoint.Zero + displacement, containerViewport.Columns, containerViewport.Rows, containerViewport.ZIndex));
}
else
{
return(containerViewport.InnerViewport(innerViewport.Position + displacement, innerViewport.Columns, innerViewport.Rows));
}
}
public void DrawChars(char value, int count, TvPoint location, CharacterAttribute attribute)
{
ViewportHelper.DrawChars(value, count, location, attribute, Viewport, _console);
}
public void DrawStringAt(string value, TvPoint location, CharacterAttribute attr)
{
ViewportHelper.DrawStringAt(value, location, attr, Viewport, _console);
}
public static TvPoint ConsolePointToViewport(TvPoint consolePoint, TvPoint viewportPosition) => consolePoint - viewportPosition;
public static TvPoint ViewPointToConsolePoint(TvPoint viewPoint, TvPoint viewportPosition) => viewPoint + viewportPosition;
public static bool IsConsolePointInside(TvPoint consolePoint, TvPoint viewportPosition)
{
var viewPoint = ConsolePointToViewport(consolePoint, viewportPosition);
return(consolePoint.Top >= viewportPosition.Top && consolePoint.Left >= viewportPosition.Left);
}