/// <summary>
/// Takes a texture and applies some text to it.
/// </summary>
/// <param name="text">The text to texture.</param>
/// <param name="font">The font of the text.</param>
/// <param name="width">The width of the text.</param>
/// <param name="height">The height of the text.</param>
/// <param name="loadedTexture">The texture to be loaded on to.</param>
/// <param name="background">The background of the text. (default: none/null)</param>
/// <param name="orientation">The orientation of the text. (default: left)</param>
public void GenOrUpdateTextTexture(string text, CairoFont font, int width, int height, ref LoadedTexture loadedTexture, TextBackground background = null, EnumTextOrientation orientation = EnumTextOrientation.Left, bool demulAlpha = false)
{
if (background == null)
{
background = defaultBackground;
}
ElementBounds bounds = new ElementBounds().WithFixedSize(width, height);
ImageSurface surface = new ImageSurface(Format.Argb32, width, height);
Context ctx = new Context(surface);
GuiElementTextBase elTeBa = new GuiElementTextBase(capi, text, font, bounds);
ctx.SetSourceRGBA(background.FillColor);
GuiElement.RoundRectangle(ctx, 0, 0, width, height, background.Radius);
if (background.BorderWidth > 0)
{
ctx.FillPreserve();
ctx.Operator = Operator.Atop;
ctx.LineWidth = background.BorderWidth;
ctx.SetSourceRGBA(background.BorderColor);
ctx.Stroke();
ctx.Operator = Operator.Over;
}
else
{
ctx.Fill();
}
//ctx.Antialias = Antialias.Subpixel;
elTeBa.textUtil.AutobreakAndDrawMultilineTextAt(ctx, font, text, background.Padding, background.Padding, width, orientation);
//int textureId = capi.Gui.LoadCairoTexture(surface, true); - WTF! What was this for?!
if (demulAlpha)
{
surface.DemulAlpha();
}
capi.Gui.LoadOrUpdateCairoTexture(surface, true, ref loadedTexture);
//surface.WriteToPng("test.png");
surface.Dispose();
ctx.Dispose();
}
/// <summary>
/// Takes a string of text and applies a texture to it.
/// </summary>
/// <param name="text">The text to texture.</param>
/// <param name="font">The font of the text.</param>
/// <param name="width">The width of the text.</param>
/// <param name="height">The height of the text.</param>
/// <param name="background">The background of the text. (default: none/null)</param>
/// <returns>The texturized text.</returns>
public LoadedTexture GenTextTexture(string text, CairoFont font, int width, int height, TextBackground background = null)
{
if (background == null)
{
background = defaultBackground;
}
ImageSurface surface = new ImageSurface(Format.Argb32, width, height);
Context ctx = new Context(surface);
if (background?.FillColor != null)
{
ctx.SetSourceRGBA(background.FillColor);
GuiElement.RoundRectangle(ctx, 0, 0, width, height, background.Radius);
ctx.Fill();
}
if (background?.Shade == true)
{
ctx.SetSourceRGBA(GuiStyle.DialogLightBgColor[0] * 1.4, GuiStyle.DialogStrongBgColor[1] * 1.4, GuiStyle.DialogStrongBgColor[2] * 1.4, 1);
ctx.LineWidth = 5;// background.BorderWidth * 1.75;
GuiElement.RoundRectangle(ctx, 0, 0, width, height, background.Radius);
ctx.StrokePreserve();
surface.Blur(6.2);
ctx.SetSourceRGBA(new double[] { 45 / 255.0, 35 / 255.0, 33 / 255.0, 1 });
ctx.LineWidth = background.BorderWidth;
ctx.Stroke();
}
if (background?.BorderColor != null)
{
ctx.SetSourceRGBA(background.BorderColor);
GuiElement.RoundRectangle(ctx, 0, 0, width, height, background.Radius);
ctx.LineWidth = background.BorderWidth;
ctx.Stroke();
}
font.SetupContext(ctx);
double fontHeight = font.GetFontExtents().Height;
string[] lines = text.Split('\n');
for (int i = 0; i < lines.Length; i++)
{
lines[i] = lines[i].TrimEnd();
ctx.MoveTo(background.Padding, background.Padding + ctx.FontExtents.Ascent + i * fontHeight);
if (font.StrokeWidth > 0)
{
ctx.TextPath(lines[i]);
ctx.LineWidth = font.StrokeWidth;
ctx.SetSourceRGBA(font.StrokeColor);
ctx.StrokePreserve();
ctx.SetSourceRGBA(font.Color);
ctx.Fill();
}
else
{
ctx.ShowText(lines[i]);
if (font.RenderTwice)
{
ctx.ShowText(lines[i]);
}
}
}
int textureId = capi.Gui.LoadCairoTexture(surface, true);
surface.Dispose();
ctx.Dispose();
return(new LoadedTexture(capi)
{
TextureId = textureId,
Width = width,
Height = height
});
}
