/// <summary>
/// Get pen to be used for border draw respecting its style.
/// </summary>
private static RPen GetPen(RGraphics g, string style, RColor color, double width)
{
var p = g.GetPen(color);
p.Width = width;
switch (style)
{
case "solid":
p.DashStyle = RDashStyle.Solid;
break;
case "dotted":
p.DashStyle = RDashStyle.Dot;
break;
case "dashed":
p.DashStyle = RDashStyle.Dash;
break;
}
return p;
}
/// <summary>
/// Paints the fragment
/// </summary>
/// <param name="g">the device to draw to</param>
protected override void PaintImp(RGraphics g)
{
// load image iff it is in visible rectangle
if (_imageLoadHandler == null)
{
_imageLoadHandler = new ImageLoadHandler(HtmlContainer, OnLoadImageComplete);
_imageLoadHandler.LoadImage(GetAttribute("src"), HtmlTag != null ? HtmlTag.Attributes : null);
}
var rect = CommonUtils.GetFirstValueOrDefault(Rectangles);
RPoint offset = HtmlContainer.ScrollOffset;
rect.Offset(offset);
var clipped = RenderUtils.ClipGraphicsByOverflow(g, this);
PaintBackground(g, rect, true, true);
BordersDrawHandler.DrawBoxBorders(g, this, rect, true, true);
RRect r = _imageWord.Rectangle;
r.Offset(offset);
r.Height -= ActualBorderTopWidth + ActualBorderBottomWidth + ActualPaddingTop + ActualPaddingBottom;
r.Y += ActualBorderTopWidth + ActualPaddingTop;
r.X = Math.Floor(r.X);
r.Y = Math.Floor(r.Y);
if (_imageWord.Image != null)
{
if (r.Width > 0 && r.Height > 0)
{
if (_imageWord.ImageRectangle == RRect.Empty)
g.DrawImage(_imageWord.Image, r);
else
g.DrawImage(_imageWord.Image, r, _imageWord.ImageRectangle);
if (_imageWord.Selected)
{
g.DrawRectangle(GetSelectionBackBrush(g, true), _imageWord.Left + offset.X, _imageWord.Top + offset.Y, _imageWord.Width + 2, DomUtils.GetCssLineBoxByWord(_imageWord).LineHeight);
}
}
}
else if (_imageLoadingComplete)
{
if (_imageLoadingComplete && r.Width > 19 && r.Height > 19)
{
RenderUtils.DrawImageErrorIcon(g, HtmlContainer, r);
}
}
else
{
RenderUtils.DrawImageLoadingIcon(g, HtmlContainer, r);
if (r.Width > 19 && r.Height > 19)
{
g.DrawRectangle(g.GetPen(RColor.LightGray), r.X, r.Y, r.Width, r.Height);
}
}
if (clipped)
g.PopClip();
}
/// <summary>
/// Draw image failed to load icon.
/// </summary>
/// <param name="g">the device to draw into</param>
/// <param name="htmlContainer"></param>
/// <param name="r">the rectangle to draw icon in</param>
public static void DrawImageErrorIcon(RGraphics g, HtmlContainerInt htmlContainer, RRect r)
{
g.DrawRectangle(g.GetPen(RColor.LightGray), r.Left + 2, r.Top + 2, 15, 15);
var image = htmlContainer.Adapter.GetLoadingFailedImage();
g.DrawImage(image, new RRect(r.Left + 3, r.Top + 3, image.Width, image.Height));
}
/// <summary>
/// Paints the text decoration (underline/strike-through/over-line)
/// </summary>
/// <param name="g">the device to draw into</param>
/// <param name="rectangle"> </param>
/// <param name="isFirst"> </param>
/// <param name="isLast"> </param>
protected void PaintDecoration(RGraphics g, RRect rectangle, bool isFirst, bool isLast)
{
if (string.IsNullOrEmpty(TextDecoration) || TextDecoration == CssConstants.None)
return;
double y = 0f;
if (TextDecoration == CssConstants.Underline)
{
y = Math.Round(rectangle.Top + ActualFont.UnderlineOffset);
}
else if (TextDecoration == CssConstants.LineThrough)
{
y = rectangle.Top + rectangle.Height / 2f;
}
else if (TextDecoration == CssConstants.Overline)
{
y = rectangle.Top;
}
y -= ActualPaddingBottom - ActualBorderBottomWidth;
double x1 = rectangle.X;
if (isFirst)
x1 += ActualPaddingLeft + ActualBorderLeftWidth;
double x2 = rectangle.Right;
if (isLast)
x2 -= ActualPaddingRight + ActualBorderRightWidth;
var pen = g.GetPen(ActualColor);
pen.Width = 1;
pen.DashStyle = RDashStyle.Solid;
g.DrawLine(pen, x1, y, x2, y);
}
/// <summary>
/// Draw video image over the iframe if found.
/// </summary>
private void DrawImage(RGraphics g, RPoint offset, RRect rect)
{
if (_imageWord.Image != null)
{
if (rect.Width > 0 && rect.Height > 0)
{
if (_imageWord.ImageRectangle == RRect.Empty)
g.DrawImage(_imageWord.Image, rect);
else
g.DrawImage(_imageWord.Image, rect, _imageWord.ImageRectangle);
if (_imageWord.Selected)
{
g.DrawRectangle(GetSelectionBackBrush(g, true), _imageWord.Left + offset.X, _imageWord.Top + offset.Y, _imageWord.Width + 2, DomUtils.GetCssLineBoxByWord(_imageWord).LineHeight);
}
}
}
else if (_isVideo && !_imageLoadingComplete)
{
RenderUtils.DrawImageLoadingIcon(g, HtmlContainer, rect);
if (rect.Width > 19 && rect.Height > 19)
{
g.DrawRectangle(g.GetPen(RColor.LightGray), rect.X, rect.Y, rect.Width, rect.Height);
}
}
}
