/// <summary>
/// See base docs.
/// </summary>
/// <param name="brush"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="width"></param>
/// <param name="height"></param>
public override void FillRectangle(VrsDrawing.IBrush brush, int x, int y, int width, int height)
{
GdiPlusLock.EnforceSingleThread(() => {
if (brush is BrushWrapper brushWrapper)
{
NativeDrawingContext.FillRectangle(brushWrapper.NativeBrush, x, y, width, height);
}
});
}
/// <summary>
/// See interface docs.
/// </summary>
/// <param name="red"></param>
/// <param name="green"></param>
/// <param name="blue"></param>
/// <param name="alpha"></param>
/// <param name="isCached"></param>
/// <returns></returns>
protected override VrsDrawing.IBrush CreateBrushWrapper(int red, int green, int blue, int alpha, bool isCached)
{
VrsDrawing.IBrush result = null;
GdiPlusLock.EnforceSingleThread(() => {
result = new BrushWrapper(
new SolidBrush(Color.FromArgb(alpha, red, green, blue)),
isCached
);
});
return(result);
}
/// <summary>
/// See interface docs.
/// </summary>
/// <param name="pixelWidth"></param>
/// <param name="pixelHeight"></param>
/// <param name="backgroundBrush"></param>
/// <returns></returns>
public VrsDrawing.IImage Create(int pixelWidth, int pixelHeight, VrsDrawing.IBrush backgroundBrush)
{
var image = new Bitmap(
pixelWidth,
pixelHeight,
PixelFormat.Format32bppArgb
);
GdiPlusLock.EnforceSingleThread(() => {
using (var drawing = new Drawing(Graphics.FromImage(image))) {
drawing.FillRectangle(backgroundBrush, 0, 0, pixelWidth, pixelHeight);
}
});
return(new ImageWrapper(image));
}
/// <summary>
/// See base docs.
/// </summary>
/// <param name="text"></param>
/// <param name="font"></param>
/// <param name="fillBrush"></param>
/// <param name="outlinePen"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="alignment"></param>
/// <param name="preferSpeedOverQuality"></param>
public override void DrawText(string text, VrsDrawing.IFont font, VrsDrawing.IBrush fillBrush, VrsDrawing.IPen outlinePen, float x, float y, VrsDrawing.HorizontalAlignment alignment, bool preferSpeedOverQuality = true)
{
if (font is FontWrapper fontWrapper)
{
GdiPlusLock.EnforceSingleThread(() => {
var location = new PointF(x, y);
// Mono ignores these flags...
var stringFormat = new StringFormat()
{
Alignment = Convert.ToSystemDrawingStringAlignment(alignment),
LineAlignment = Convert.ToSystemDrawingStringAlignment(alignment),
FormatFlags = StringFormatFlags.NoWrap,
};
using (var graphicsPath = new GraphicsPath()) {
graphicsPath.AddString(
text,
fontWrapper.NativeFont.FontFamily,
(int)fontWrapper.NativeFont.Style,
fontWrapper.NativeFont.Size,
location,
stringFormat
);
NativeDrawingContext.SmoothingMode = SmoothingMode.AntiAlias;
NativeDrawingContext.InterpolationMode = InterpolationMode.HighQualityBicubic;
if (outlinePen is PenWrapper outlinePenWrapper)
{
NativeDrawingContext.DrawPath(outlinePenWrapper.NativePen, graphicsPath);
}
if (fillBrush is BrushWrapper fillBrushWrapper)
{
NativeDrawingContext.FillPath(fillBrushWrapper.NativeBrush, graphicsPath);
}
}
});
}
}
/// <summary>
/// See base docs.
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="mode"></param>
/// <param name="zoomBackground"></param>
/// <param name="preferSpeedOverQuality"></param>
/// <returns></returns>
public override VrsDrawing.IImage Resize(int width, int height, VrsDrawing.ResizeMode mode = VrsDrawing.ResizeMode.Normal, VrsDrawing.IBrush zoomBackground = null, bool preferSpeedOverQuality = true)
{
var result = new Bitmap(width, height, PixelFormat.Format32bppArgb);
var zoomBackgroundBrushWrapper = zoomBackground as BrushWrapper;
GdiPlusLock.EnforceSingleThread(() => {
using (var graphics = Graphics.FromImage(result)) {
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.InterpolationMode = preferSpeedOverQuality ? InterpolationMode.Bicubic : InterpolationMode.HighQualityBicubic;
graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
var newWidth = width;
var newHeight = height;
var left = 0;
var top = 0;
if (mode != VrsDrawing.ResizeMode.Stretch)
{
var widthPercent = (double)newWidth / (double)NativeImage.Width;
var heightPercent = (double)newHeight / (double)NativeImage.Height;
switch (mode)
{
case VrsDrawing.ResizeMode.Zoom:
// Resize the longest side by the smallest percentage
graphics.FillRectangle(zoomBackgroundBrushWrapper.NativeBrush, 0, 0, result.Width, result.Height);
if (widthPercent > heightPercent)
{
newWidth = Math.Min(newWidth, (int)(((double)NativeImage.Width * heightPercent) + 0.5));
}
else if (heightPercent > widthPercent)
{
newHeight = Math.Min(newHeight, (int)(((double)NativeImage.Height * widthPercent) + 0.5));
}
break;
case VrsDrawing.ResizeMode.Normal:
case VrsDrawing.ResizeMode.Centre:
// Resize the smallest side by the largest percentage
if (widthPercent > heightPercent)
{
newHeight = Math.Max(newHeight, (int)(((double)NativeImage.Height * widthPercent) + 0.5));
}
else if (heightPercent > widthPercent)
{
newWidth = Math.Max(newWidth, (int)(((double)NativeImage.Width * heightPercent) + 0.5));
}
break;
}
if (mode != VrsDrawing.ResizeMode.Normal)
{
left = (width - newWidth) / 2;
top = (height - newHeight) / 2;
}
}
graphics.DrawImage(NativeImage, left, top, newWidth, newHeight);
}
});
return(new ImageWrapper(result));
}
/// <summary> /// See interface docs. /// </summary> /// <param name="width"></param> /// <param name="height"></param> /// <param name="mode"></param> /// <param name="zoomBackground"></param> /// <param name="preferSpeedOverQuality"></param> /// <returns></returns> public abstract VrsDrawing.IImage Resize(int width, int height, VrsDrawing.ResizeMode mode = VrsDrawing.ResizeMode.Normal, VrsDrawing.IBrush zoomBackground = null, bool preferSpeedOverQuality = true);
/// <summary>
/// Creates a new object.
/// </summary>
public CommonBrushFactory()
{
Transparent = CreateBrush(255, 255, 255, 0, useCache: true);
}
/// <summary> /// See interface docs. /// </summary> /// <param name="text"></param> /// <param name="font"></param> /// <param name="fillBrush"></param> /// <param name="outlinePen"></param> /// <param name="x"></param> /// <param name="y"></param> /// <param name="alignment"></param> /// <param name="preferSpeedOverQuality"></param> public abstract void DrawText(string text, VrsDrawing.IFont font, VrsDrawing.IBrush fillBrush, VrsDrawing.IPen outlinePen, float x, float y, VrsDrawing.HorizontalAlignment alignment, bool preferSpeedOverQuality = true);
/// <summary> /// See interface docs. /// </summary> /// <param name="brush"></param> /// <param name="x"></param> /// <param name="y"></param> /// <param name="width"></param> /// <param name="height"></param> public abstract void FillRectangle(VrsDrawing.IBrush brush, int x, int y, int width, int height);
