protected override RBrush CreateLinearGradientBrush(RRect rect, RColor color1, RColor color2, double angle)
{
var startColor = angle <= 180 ? Utils.Convert(color1) : Utils.Convert(color2);
var endColor = angle <= 180 ? Utils.Convert(color2) : Utils.Convert(color1);
angle = angle <= 180 ? angle : angle - 180;
double x = angle < 135 ? Math.Max((angle - 45) / 90, 0) : 1;
double y = angle <= 45 ? Math.Max(0.5 - angle / 90, 0) : angle > 135 ? Math.Abs(1.5 - angle / 90) : 0;
return new BrushAdapter(new LinearGradientBrush(startColor, endColor, new Point(x, y), new Point(1 - x, 1 - y)));
}
/// <summary>
/// Get solid color brush for the given color.
/// </summary>
private static IBrush GetSolidColorBrush(RColor color)
{
IBrush solidBrush;
if (color == RColor.White)
solidBrush = Brushes.White;
else if (color == RColor.Black)
solidBrush = Brushes.Black;
else if (color.A < 1)
solidBrush = Brushes.Transparent;
else
solidBrush = new SolidColorBrush(Util.Convert(color));
return solidBrush;
}
protected override RBrush CreateLinearGradientBrush(RRect rect, RColor color1, RColor color2, double angle)
{
XLinearGradientMode mode;
if (angle < 45)
mode = XLinearGradientMode.ForwardDiagonal;
else if (angle < 90)
mode = XLinearGradientMode.Vertical;
else if (angle < 135)
mode = XLinearGradientMode.BackwardDiagonal;
else
mode = XLinearGradientMode.Horizontal;
return new BrushAdapter(new XLinearGradientBrush(Utils.Convert(rect), Utils.Convert(color1), Utils.Convert(color2), mode));
}
protected override RBrush CreateSolidBrush(RColor color)
{
XBrush solidBrush;
if (color == RColor.White)
solidBrush = XBrushes.White;
else if (color == RColor.Black)
solidBrush = XBrushes.Black;
else if (color.A < 1)
solidBrush = XBrushes.Transparent;
else
solidBrush = new XSolidBrush(Utils.Convert(color));
return new BrushAdapter(solidBrush);
}
protected override RBrush CreateLinearGradientBrush(RRect rect, RColor color1, RColor color2, double angle)
{
var startColor = angle <= 180 ? Util.Convert(color1) : Util.Convert(color2);
var endColor = angle <= 180 ? Util.Convert(color2) : Util.Convert(color1);
angle = angle <= 180 ? angle : angle - 180;
double x = angle < 135 ? Math.Max((angle - 45) / 90, 0) : 1;
double y = angle <= 45 ? Math.Max(0.5 - angle / 90, 0) : angle > 135 ? Math.Abs(1.5 - angle / 90) : 0;
return new BrushAdapter(new LinearGradientBrush
{
StartPoint = new RelativePoint(x, y, RelativeUnit.Relative),
EndPoint = new RelativePoint(1 - x, 1 - y, RelativeUnit.Relative),
GradientStops =
{
new GradientStop(startColor, 0),
new GradientStop(endColor, 1)
}
});
}
/// <summary> /// Get cached pen instance for the given color. /// </summary> /// <param name="color">the color to get pen for</param> /// <returns>pen instance</returns> protected abstract RPen CreatePen(RColor color);
/// <summary>
/// Check if the given color is visible if painted (has alpha and color values)
/// </summary>
/// <param name="color">the color to check</param>
/// <returns>true - visible, false - not visible</returns>
public static bool IsColorVisible(RColor color)
{
return color.A > 0;
}
/// <summary>
/// Get solid color brush.
/// </summary>
/// <param name="color">the color to get the brush for</param>
/// <returns>solid color brush instance</returns>
public RBrush GetSolidBrush(RColor color)
{
return _adapter.GetSolidBrush(color);
}
/// <summary> /// Draw the given string using the given font and foreground color at given location. /// </summary> /// <param name="str">the string to draw</param> /// <param name="font">the font to use to draw the string</param> /// <param name="color">the text color to set</param> /// <param name="point">the location to start string draw (top-left)</param> /// <param name="size">used to know the size of the rendered text for transparent text support</param> /// <param name="rtl">is to render the string right-to-left (true - RTL, false - LTR)</param> public abstract void DrawString(String str, RFont font, RColor color, RPoint point, RSize size, bool rtl);
protected override RBrush CreateSolidBrush(RColor color)
{
var solidBrush = GetSolidColorBrush(color);
return new BrushAdapter(solidBrush);
}
public override void DrawString(string str, RFont font, RColor color, RPoint point, RSize size, bool rtl)
{
var colorConv = ((BrushAdapter)_adapter.GetSolidBrush(color)).Brush;
bool glyphRendered = false;
GlyphTypeface glyphTypeface = ((FontAdapter)font).GlyphTypeface;
if (glyphTypeface != null)
{
double width = 0;
ushort[] glyphs = new ushort[str.Length];
double[] widths = new double[str.Length];
int i = 0;
for (; i < str.Length; i++)
{
ushort glyph;
if (!glyphTypeface.CharacterToGlyphMap.TryGetValue(str[i], out glyph))
break;
glyphs[i] = glyph;
width += glyphTypeface.AdvanceWidths[glyph];
widths[i] = 96d / 72d * font.Size * glyphTypeface.AdvanceWidths[glyph];
}
if (i >= str.Length)
{
point.Y += glyphTypeface.Baseline * font.Size * 96d / 72d;
point.X += rtl ? 96d / 72d * font.Size * width : 0;
glyphRendered = true;
var glyphRun = new GlyphRun(glyphTypeface, rtl ? 1 : 0, false, 96d / 72d * font.Size, glyphs, Utils.ConvertRound(point), widths, null, null, null, null, null, null);
_g.DrawGlyphRun(colorConv, glyphRun);
}
}
if (!glyphRendered)
{
var formattedText = new FormattedText(str, CultureInfo.CurrentCulture, rtl ? FlowDirection.RightToLeft : FlowDirection.LeftToRight, ((FontAdapter)font).Font, 96d / 72d * font.Size, colorConv);
point.X += rtl ? formattedText.Width : 0;
_g.DrawText(formattedText, Utils.ConvertRound(point));
}
}
/// <summary>
/// Makes the specified color darker for inset/outset borders.
/// </summary>
private static RColor Darken(RColor c)
{
return RColor.FromArgb(c.R / 2, c.G / 2, c.B / 2);
}
/// <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 "double":
p.DashStyle = RDashStyle.Solid;
break;
case "dashed":
p.DashStyle = RDashStyle.Dash;
break;
}
return p;
}
protected override RBrush CreateSolidBrush(RColor color)
{
return new BrushAdapter(GetSolidColorBrush(color));
}
/// <summary> /// Get cached solid brush instance for the given color. /// </summary> /// <param name="color">the color to get brush for</param> /// <returns>brush instance</returns> protected abstract RBrush CreateSolidBrush(RColor color);
protected override RPen CreatePen(RColor color)
{
return new PenAdapter(GetSolidColorBrush(color));
}
protected override RBrush CreateLinearGradientBrush(RRect rect, RColor color1, RColor color2, double angle)
{
return new BrushAdapter(new LinearGradientBrush(Utils.Convert(rect), Utils.Convert(color1), Utils.Convert(color2), (float)angle), true);
}
protected override RPen CreatePen(RColor color)
{
return new PenAdapter(new XPen(Utils.Convert(color)));
}
/// <summary>
/// Convert from core color to WPF color.
/// </summary>
public static Color Convert(RColor c)
{
return Color.FromArgb(c.A, c.R, c.G, c.B);
}
public override void DrawString(string str, RFont font, RColor color, RPoint point, RSize size, bool rtl)
{
var xBrush = ((BrushAdapter)_adapter.GetSolidBrush(color)).Brush;
_g.DrawString(str, ((FontAdapter)font).Font, (XBrush)xBrush, point.X, point.Y, _stringFormat);
}
/// <summary>
/// Get cached pen instance for the given color.
/// </summary>
/// <param name="color">the color to get pen for</param>
/// <returns>pen instance</returns>
public RPen GetPen(RColor color)
{
RPen pen;
if (!_penCache.TryGetValue(color, out pen))
{
_penCache[color] = pen = CreatePen(color);
}
return pen;
}
/// <summary>
/// Get color pen.
/// </summary>
/// <param name="color">the color to get the pen for</param>
/// <returns>pen instance</returns>
public RPen GetPen(RColor color)
{
return _adapter.GetPen(color);
}
/// <summary>
/// Get cached solid brush instance for the given color.
/// </summary>
/// <param name="color">the color to get brush for</param>
/// <returns>brush instance</returns>
public RBrush GetSolidBrush(RColor color)
{
RBrush brush;
if (!_brushesCache.TryGetValue(color, out brush))
{
_brushesCache[color] = brush = CreateSolidBrush(color);
}
return brush;
}
/// <summary>
/// Get linear gradient color brush from <paramref name="color1"/> to <paramref name="color2"/>.
/// </summary>
/// <param name="rect">the rectangle to get the brush for</param>
/// <param name="color1">the start color of the gradient</param>
/// <param name="color2">the end color of the gradient</param>
/// <param name="angle">the angle to move the gradient from start color to end color in the rectangle</param>
/// <returns>linear gradient color brush instance</returns>
public RBrush GetLinearGradientBrush(RRect rect, RColor color1, RColor color2, double angle)
{
return _adapter.GetLinearGradientBrush(rect, color1, color2, angle);
}
/// <summary> /// Get linear gradient color brush from <paramref name="color1"/> to <paramref name="color2"/>. /// </summary> /// <param name="rect">the rectangle to get the brush for</param> /// <param name="color1">the start color of the gradient</param> /// <param name="color2">the end color of the gradient</param> /// <param name="angle">the angle to move the gradient from start color to end color in the rectangle</param> /// <returns>linear gradient color brush instance</returns> protected abstract RBrush CreateLinearGradientBrush(RRect rect, RColor color1, RColor color2, double angle);
public override void DrawString(string str, RFont font, RColor color, RPoint point, RSize size, bool rtl)
{
var text = GetText(str, font);
text.Constraint = Util.Convert(size);
_g.DrawText(new SolidColorBrush(Util.Convert(color)), Util.Convert(point), text);
}
public override void DrawString(string str, RFont font, RColor color, RPoint point, RSize size, bool rtl)
{
if (_useGdiPlusTextRendering)
{
ReleaseHdc();
SetRtlAlignGdiPlus(rtl);
var brush = ((BrushAdapter)_adapter.GetSolidBrush(color)).Brush;
_g.DrawString(str, ((FontAdapter)font).Font, brush, (int)(Math.Round(point.X) + (rtl ? size.Width : 0)), (int)Math.Round(point.Y), _stringFormat2);
}
else
{
#if !MONO
var pointConv = Utils.ConvertRound(point);
var colorConv = Utils.Convert(color);
if (color.A == 255)
{
SetFont(font);
SetTextColor(colorConv);
SetRtlAlignGdi(rtl);
Win32Utils.TextOut(_hdc, pointConv.X, pointConv.Y, str, str.Length);
}
else
{
InitHdc();
SetRtlAlignGdi(rtl);
DrawTransparentText(_hdc, str, font, pointConv, Utils.ConvertRound(size), colorConv);
}
#endif
}
}
