public SimpleText(IContext context, Font font, int maxLength, Color color)
{
Device device = context.DirectX.Device;
Font = font;
MaxLength = maxLength;
Color = color;
_shader = context.Shaders.Get <FontShader>();
_icons = new List <TexturedRectangle>();
// The index buffer is static and do not change when the text changes
uint[] indices = new uint[maxLength * 6]; // 6 indices per character
for (uint i = 0; i < maxLength; i++)
{
indices[i * 6] = i * 4;
indices[i * 6 + 1] = i * 4 + 1;
indices[i * 6 + 2] = i * 4 + 2;
indices[i * 6 + 3] = i * 4;
indices[i * 6 + 4] = i * 4 + 3;
indices[i * 6 + 5] = i * 4 + 1;
}
_indexBuffer = Buffer.Create(device, BindFlags.IndexBuffer, indices);
// The vertex buffer is initialized empty
_vertices = new VertexDefinition.PositionTextureColor[maxLength * 4]; // 4 vertices per character
var vertexBufferDesc = new BufferDescription
{
Usage = ResourceUsage.Dynamic,
SizeInBytes = Utilities.SizeOf <VertexDefinition.PositionTextureColor>() * maxLength * 4,
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
StructureByteStride = 0
};
// Create the vertex buffer.
_vertexBuffer = Buffer.Create(device, _vertices, vertexBufferDesc);
}
public Vector2I UpdateVertexArray(string text, ref VertexDefinition.PositionTextureColor[] vertices, ref Buffer vertexBuffer, Color defaultColor, List <TexturedRectangle> icons, int positionX = 0, int positionY = 0)
{
icons.Clear();
Color color = defaultColor;
int width = 0;
int maxWidth = 0;
int height = Characters.First().Value.height;
int maxHeight = height;
for (int i = 0; i < text.Length; i++)
{
char letter = text[i];
if (letter == '\n')
{
maxWidth = Math.Max(maxWidth, width);
width = 0;
positionX = 0;
positionY += height;
maxHeight += height;
continue;
}
if (letter == '[')
{
if (text[i + 1] == '[')
{
continue;
}
string token = text.Substring(i + 1, text.IndexOf(']', i + 1) - (i + 1));
if (!ColorParser.TryParse(token, out color))
{
if (token == "-")
{
color = defaultColor;
}
else if (token == "gold")
{
icons.Add(new TexturedRectangle(_context,
_context.TextureManager.Create("gold.png", "Data/UI/Icons/"), new Vector2I(height, height)));
positionX += height + 1;
width += height + 1;
}
else
{
throw new InvalidOperationException("Unexpected token : " + token);
}
}
i = text.IndexOf(']', i + 1);
continue;
}
Character c = Characters[letter];
Vector4 colorAsVector = color.ToVector4();
vertices[i * 4] = new VertexDefinition.PositionTextureColor {
position = new Vector3(positionX, positionY, 0.0f), texture = new Vector2(c.uLeft, c.vTop), color = colorAsVector
}; //Top left
vertices[i * 4 + 1] = new VertexDefinition.PositionTextureColor {
position = new Vector3(positionX + c.width, positionY + c.height, 0.0f), texture = new Vector2(c.uRight, c.vBottom), color = colorAsVector
}; //Right bottom
vertices[i * 4 + 2] = new VertexDefinition.PositionTextureColor {
position = new Vector3(positionX, positionY + c.height, 0.0f), texture = new Vector2(c.uLeft, c.vBottom), color = colorAsVector
}; //Left bottom
vertices[i * 4 + 3] = new VertexDefinition.PositionTextureColor {
position = new Vector3(positionX + c.width, positionY, 0.0f), texture = new Vector2(c.uRight, c.vTop), color = colorAsVector
}; //Top right
positionX += c.width + 1;
width += c.width + 1;
}
DataStream mappedResource;
_context.DirectX.Device.ImmediateContext.MapSubresource(vertexBuffer, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None,
out mappedResource);
mappedResource.WriteRange(vertices);
_context.DirectX.Device.ImmediateContext.UnmapSubresource(vertexBuffer, 0);
return(new Vector2I(Math.Max(maxWidth, width), maxHeight));
}
private void CreateVertexBuffer(Device device)
{
_vertices = new VertexDefinition.PositionTextureColor[_numberOfLetters * 4];
int letterIndex = 0;
Color color = BaseColor;
int lineHeight = Font.Characters.First().Value.height;
float spaceSize = SpaceSize;
float positionY = Padding.Top;
if (VerticalAlignment == VerticalAlignment.Bottom)
{
positionY = Size.Y - (lineHeight * Lines.Count + LineSpacing * (Lines.Count - 1)) - Padding.Bottom;
}
if (VerticalAlignment == VerticalAlignment.Middle)
{
positionY = Padding.Top + (float)(Size.Y - Padding.Bottom - Padding.Top - (lineHeight * Lines.Count + LineSpacing * (Lines.Count - 1))) / 2;
}
for (int i = 0; i < Lines.Count; i++)
{
TextLine line = Lines[i];
line.Width -= SpaceSize + 1; //Remove last space and pixel padding after last character
float positionX = Padding.Left;
if (HorizontalAlignment == HorizontalAlignment.Right)
{
positionX = Size.X - line.Width - Padding.Right;
}
if (HorizontalAlignment == HorizontalAlignment.Center)
{
positionX = Padding.Left + (float)(Size.X - Padding.Left - Padding.Right - line.Width) / 2;
}
if (HorizontalAlignment == HorizontalAlignment.Justify && line.WordWrapped)
{
spaceSize = SpaceSize + (float)(Size.X - Padding.Left - Padding.Right - line.Width) / (line.WordCount - 1);
}
for (int j = 0; j < line.Words.Count; j++)
{
string word = line.Words[j];
for (int k = 0; k < word.Length; k++)
{
char letter = word[k];
if (letter == '[')
{
if (word[k + 1] != '[')
{
string token = word.Substring(k + 1, word.IndexOf(']', k + 1) - (k + 1));
if (token == "-")
{
color = BaseColor;
}
else if (!ColorParser.TryParse(token, out color))
{
throw new InvalidOperationException("Unexpected token : " + token);
}
k = word.IndexOf(']', k + 1);
continue;
}
k++;
}
Vector4 colorAsVector = color.ToVector4();
Font.Character c = Font.Characters[letter];
_vertices[letterIndex * 4] = new VertexDefinition.PositionTextureColor {
position = new Vector3(positionX, positionY, 0.0f), texture = new Vector2(c.uLeft, c.vTop), color = colorAsVector
}; //Top left
_vertices[letterIndex * 4 + 1] = new VertexDefinition.PositionTextureColor {
position = new Vector3(positionX + c.width, positionY + c.height, 0.0f), texture = new Vector2(c.uRight, c.vBottom), color = colorAsVector
}; //Right bottom
_vertices[letterIndex * 4 + 2] = new VertexDefinition.PositionTextureColor {
position = new Vector3(positionX, positionY + c.height, 0.0f), texture = new Vector2(c.uLeft, c.vBottom), color = colorAsVector
}; //Left bottom
_vertices[letterIndex * 4 + 3] = new VertexDefinition.PositionTextureColor {
position = new Vector3(positionX + c.width, positionY, 0.0f), texture = new Vector2(c.uRight, c.vTop), color = colorAsVector
}; //Top right
positionX += c.width + 1;
letterIndex++;
}
positionX += spaceSize;
}
positionY += lineHeight + LineSpacing;
}
if (_vertexBuffer != null)
{
_vertexBuffer.Dispose();
}
_vertexBuffer = Buffer.Create(device, BindFlags.VertexBuffer, _vertices);
UsedSize = new Vector2I(Lines.Max(l => l.Width) + Padding.Left + Padding.Right,
(lineHeight * Lines.Count + LineSpacing * (Lines.Count - 1)) + Padding.Bottom + Padding.Top);
}
