unsafe void SetBrushBuffer(Brush.BrushBuffer buffer)
{
deviceContext.UpdateSubresource(brushBuffer, 0, null, (IntPtr)(&buffer), 0, 0);
deviceContext.PixelShader.SetConstantBuffer(1, brushBuffer);
}
void SetBrush(Brush brush)
{
SetBrushBuffer(brush.CreateBuffer());
var textureBrush = brush as TextureBrush;
if (textureBrush != null)
{
SetSamplerState(textureBrush.WrapMode, textureBrush.InterpolationMode == InterpolationMode.Default ? defaultInterpolationMode : textureBrush.InterpolationMode);
SetTextureInner(textureBrush.Texture.ResourceView);
}
}
/// <summary>
/// Draws formatted text.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="bounds">The bounds the text will be displayed in.</param>
/// <param name="font">The font of the text.</param>
/// <param name="size">The font size in points.</param>
/// <param name="brush">The brush used to draw the text.</param>
/// <param name="format">The format of the text.</param>
public void DrawText(string text, Rectangle bounds, Font font, float size, TextFormat format, Brush brush)
{
var layout = new TextLayout(text, bounds.Size, font, size, format);
DrawTextLayout(layout, bounds.Location, brush);
}
/// <summary>
/// Draws layouted text.
/// </summary>
/// <param name="layout">The precalculated layout.</param>
/// <param name="location">THe location the layout will be displayed at.</param>
/// <param name="brush">The brush used to draw the layout.</param>
public void DrawTextLayout(TextLayout layout, Vector2 location, Brush brush)
{
}
/// <summary>
/// Draws text.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="location">The location the text will be displayed at.</param>
/// <param name="font">The font of the text.</param>
/// <param name="size">The font size in points.</param>
/// <param name="brush">The brush used to draw the text.</param>
public void DrawText(string text, Vector2 location, Font font, float size, Brush brush)
{
if (string.IsNullOrWhiteSpace(text))
return;
float scale = (size * Dpi) / (72 * font.UnitsPerEm);
SetBrush(brush);
int horizontalPosition = 0;
int verticalPosition = font.Ascend;
for (int i = 0; i < text.Length; i++)
{
if (char.IsControl(text[i]))
{
switch (text[i])
{
case '\n':
verticalPosition += font.Ascend - font.Descend + font.LineGap;
horizontalPosition = 0;
break;
}
}
else
{
Font.Glyph glyph = font.GetGlyph(text[i]);
if (glyph.Vertices.Length > 0)
{
textMatrix = Matrix.Transpose(Matrix.Translation(horizontalPosition + glyph.LeftSideBearing, -verticalPosition, 0)
* Matrix.Scaling(scale, -scale, 1)
* Matrix.Translation(location.X, location.Y, 0));
UpdateMatrixBuffer();
brush.UpdateVertices(glyph.Vertices);
DrawVertices(glyph.Indices, glyph.Vertices);
}
horizontalPosition += glyph.AdvanceWidth;
}
}
textMatrix = Matrix.Identity;
UpdateMatrixBuffer();
}
/// <summary>
/// Fills a set of triangles with a brush.
/// </summary>
/// <param name="indices">The index buffer.</param>
/// <param name="vertices">The vertex buffer.</param>
/// <param name="brush">The brush used to fill the triangles.</param>
public void FillTriangleList(int[] indices, Vector2[] vertices, Brush brush)
{
SetBrush(brush);
var realVertices = new Vertex[vertices.Length];
for (int i = 0; i < vertices.Length; i++)
realVertices[i] = new Vertex(vertices[i]);
brush.UpdateVertices(realVertices);
DrawVertices(indices, realVertices);
}
/// <summary>
/// Fills a rectangle with a brush.
/// </summary>
/// <param name="rectangle">The rectangle to fill.</param>
/// <param name="brush">The brush used to fill the rectangle.</param>
public void FillRectangle(Rectangle rectangle, Brush brush)
{
SetBrush(brush);
Vertex[] vertices = new[]
{
new Vertex(rectangle.Left, rectangle.Top),
new Vertex(rectangle.Right, rectangle.Top),
new Vertex(rectangle.Left, rectangle.Bottom),
new Vertex(rectangle.Right, rectangle.Bottom),
};
int[] indices = { 0, 1, 2, 1, 2, 3 };
brush.UpdateVertices(vertices);
DrawVertices(indices, vertices, 0);
}
