private void UpdateBackgroundSprite()
{
if ((this.updateFlags & Label.UpdateFlags.Background) == Label.UpdateFlags.Background)
{
UISpriteUnit unit = this.backgroundSprt.GetUnit(0);
unit.Width = this.Width;
unit.Height = this.Height;
unit.Color = this.BackgroundColor;
this.updateFlags &= ~Label.UpdateFlags.Background;
}
}
protected internal override void Render()
{
if (this.Width != 0f && this.Height != 0f)
{
this.UpdateBackgroundSprite();
if (string.IsNullOrEmpty(this.Text))
{
this.textSprt.Visible = false;
}
else
{
this.UpdateTextSprite();
}
}
this.updateFlags = (Label.UpdateFlags) 0;
// Debug.WriteLine("=====================Render " + this.GetHashCode());
base.Render();
}
private void UpdateTextSprite()
{
if ((this.updateFlags & Label.UpdateFlags.Text) == Label.UpdateFlags.Text)
{
//FIXME:refresh text texture
UISpriteUnit unit = this.textSprt.GetUnit(0);
unit.Width = this.Width;
unit.Height = this.Height;
unit.Color = this.TextColor;
TextRenderHelper textRenderHelper = new TextRenderHelper();
textRenderHelper.Font = this.Font;
textRenderHelper.HorizontalAlignment = this.HorizontalAlignment;
textRenderHelper.VerticalAlignment = this.VerticalAlignment;
textRenderHelper.LineBreak = this.LineBreak;
textRenderHelper.TextTrimming = this.TextTrimming;
textRenderHelper.LineGap = this.LineGap;
this.textSprt.Visible = true;
this.textSprt.ShaderType = ShaderType.TextTexture;
this.textSprt.__name = "see UpdateTextSprite";
if (this.textSprt.Image != null)
{
this.textSprt.Image.Dispose();
}
//FIXME:write text to memory bitmap
this.textSprt.Image = textRenderHelper.DrawText(ref this.text, (int)unit.Width, (int)unit.Height);
if (this.TextShadow != null)
{
this.textSprt.InternalShaderType = InternalShaderType.TextureAlphaShadow;
this.textSprt.ShaderUniforms["u_ShadowColor"] = new float[]
{
this.TextShadow.Color.R,
this.TextShadow.Color.G,
this.TextShadow.Color.B,
this.TextShadow.Color.A
};
this.textSprt.ShaderUniforms["u_ShadowOffset"] = new float[]
{
this.TextShadow.HorizontalOffset / (float)this.textSprt.Image.Width,
this.TextShadow.VerticalOffset / (float)this.textSprt.Image.Height
};
}
this.updateFlags &= ~Label.UpdateFlags.Text;
}
}
public Label()
{
this.backgroundSprt = new UISprite(1);
base.RootUIElement.AddChildLast(this.backgroundSprt);
this.backgroundSprt.ShaderType = ShaderType.SolidFill;
this.BackgroundColor = TextRenderHelper.DefaultBackgroundColor;
this.textSprt = new UISprite(1);
base.RootUIElement.AddChildLast(this.textSprt);
this.textSprt.ShaderType = ShaderType.TextTexture;
this.Text = "";
this.Font = UISystem.DefaultFont;
this.TextColor = TextRenderHelper.DefaultTextColor;
this.TextShadow = null;
this.HorizontalAlignment = HorizontalAlignment.Left;
this.VerticalAlignment = VerticalAlignment.Middle;
this.LineBreak = LineBreak.Character;
this.TextTrimming = TextTrimming.EllipsisCharacter;
this.LineGap = 0f;
this.Width = 214f;
this.Height = 27f;
this.updateFlags = (Label.UpdateFlags.Background | Label.UpdateFlags.Text);
}
