// Select this pen into a graphics object.
public void Select(IToolkitGraphics _graphics)
{
PostscriptGraphics graphics = (_graphics as PostscriptGraphics);
if (graphics != null)
{
if (selectedInto == graphics &&
graphics.selectObject == this)
{
// Same pen as last time, so don't output a
// redundant version of the Postscript definitions.
return;
}
if (selectedInto != null)
{
selectedInto.selectObject = null;
selectedInto = null;
}
graphics.writer.WriteLine("grestore gsave");
switch (properties.PenType)
{
case PenType.SolidColor:
{
Color color = properties.Color;
#if CONFIG_EXTENDED_NUMERICS
graphics.writer.WriteLine
("{0} {1} {2} setrgbcolor",
((double)(color.R)) / 255.0,
((double)(color.G)) / 255.0,
((double)(color.B)) / 255.0);
#endif
}
break;
// TODO: other pen types
}
#if CONFIG_EXTENDED_NUMERICS
graphics.writer.WriteLine("{0} setlinewidth",
properties.Width);
#else
graphics.writer.WriteLine("{0} setlinewidth",
(int)(properties.Width));
#endif
// TODO: caps, joins, miters, etc
selectedInto = graphics;
graphics.selectObject = this;
}
}
// Select this pen into a graphics object.
public void Select(IToolkitGraphics _graphics)
{
PostscriptGraphics graphics = (_graphics as PostscriptGraphics);
if(graphics != null)
{
if(selectedInto == graphics &&
graphics.selectObject == this)
{
// Same pen as last time, so don't output a
// redundant version of the Postscript definitions.
return;
}
if(selectedInto != null)
{
selectedInto.selectObject = null;
selectedInto = null;
}
graphics.writer.WriteLine("grestore gsave");
switch(properties.PenType)
{
case PenType.SolidColor:
{
Color color = properties.Color;
#if CONFIG_EXTENDED_NUMERICS
graphics.writer.WriteLine
("{0} {1} {2} setrgbcolor",
((double)(color.R)) / 255.0,
((double)(color.G)) / 255.0,
((double)(color.B)) / 255.0);
#endif
}
break;
// TODO: other pen types
}
#if CONFIG_EXTENDED_NUMERICS
graphics.writer.WriteLine("{0} setlinewidth",
properties.Width);
#else
graphics.writer.WriteLine("{0} setlinewidth",
(int)(properties.Width));
#endif
// TODO: caps, joins, miters, etc
selectedInto = graphics;
graphics.selectObject = this;
}
}
private void CompileFrameData(Frame f)
{
int width = f.Width;
int height = f.Height;
int stride = f.Stride;
int fMaskStride = f.MaskStride;
int transparentPixel = f.TransparentPixel;
int[] fPalette = f.Palette;
byte[] fData = f.Data;
byte[] fMask = f.Mask;
PixelFormat pixelFormat = f.PixelFormat;
int maskStride = (width + 7) / 8;
byte[] mask = new byte[height * maskStride];
if (fMask != null)
{
// the mask in the frame is padded to 4-bytes, while the
// masks in postscript are padded to 1-byte, so perform a
// conversion if necessary, but direct copy if possible
if (maskStride == fMaskStride)
{
Array.Copy(fMask, 0, mask, 0, mask.Length);
}
else
{
int i = 0;
int j = 0;
int k = 0;
while (i < height)
{
Array.Copy(fMask, j, mask, k, maskStride);
++i;
j += fMaskStride;
k += maskStride;
}
}
}
byte[] data = new byte[width * 3 * height];
int offset = 0;
int maskOffset = 0;
for (int y = 0, i = 0; y < height; ++y)
{
for (int x = 0, ptr = offset; x < width; ++x)
{
switch (pixelFormat)
{
case PixelFormat.Format64bppPArgb:
{
byte a = fData[ptr + 7];
if (a != 0)
{
data[i + 2] = (byte)((fData[ptr + 1] * 255) / a);
data[i + 1] = (byte)((fData[ptr + 3] * 255) / a);
data[i] = (byte)((fData[ptr + 5] * 255) / a);
}
i += 3;
ptr += 8;
}
break;
case PixelFormat.Format64bppArgb:
{
data[i + 2] = fData[ptr + 1];
data[i + 1] = fData[ptr + 3];
data[i] = fData[ptr + 5];
i += 3;
ptr += 8;
}
break;
case PixelFormat.Format48bppRgb:
{
data[i + 2] = fData[ptr + 1];
data[i + 1] = fData[ptr + 3];
data[i] = fData[ptr + 5];
i += 3;
ptr += 6;
}
break;
case PixelFormat.Format32bppPArgb:
{
byte a = fData[ptr + 3];
if (a != 0)
{
data[i + 2] = (byte)((fData[ptr] * 255) / a);
data[i + 1] = (byte)((fData[ptr + 1] * 255) / a);
data[i] = (byte)((fData[ptr + 2] * 255) / a);
}
i += 3;
ptr += 4;
}
break;
case PixelFormat.Format32bppArgb:
{
data[i + 2] = fData[ptr++];
data[i + 1] = fData[ptr++];
data[i] = fData[ptr++];
i += 3;
++ptr;
}
break;
case PixelFormat.Format24bppRgb:
{
data[i + 2] = fData[ptr++];
data[i + 1] = fData[ptr++];
data[i] = fData[ptr++];
i += 3;
}
break;
case PixelFormat.Format16bppRgb565:
{
int g = fData[ptr++];
int r = fData[ptr++];
int b = (g & 0x1F) * 255 / 31;
g = (r << 3 & 0x38 | g >> 5 & 0x07) * 255 / 63;
r = (r >> 3) * 255 / 31;
data[i++] = (byte)r;
data[i++] = (byte)g;
data[i++] = (byte)b;
}
break;
case PixelFormat.Format16bppRgb555:
{
int g = fData[ptr++];
int r = fData[ptr++];
int b = (g & 0x1F) * 255 / 31;
g = (r << 3 & 0x18 | g >> 5 & 0x07) * 255 / 31;
r = (r >> 2 & 0x1F) * 255 / 31;
data[i++] = (byte)r;
data[i++] = (byte)g;
data[i++] = (byte)b;
}
break;
case (PixelFormat.Format16bppGrayScale):
{
++ptr;
byte all = data[ptr++];
data[i++] = (byte)all;
data[i++] = (byte)all;
data[i++] = (byte)all;
}
break;
case PixelFormat.Format8bppIndexed:
{
int idx = fData[ptr++];
int color = fPalette[idx];
data[i++] = (byte)(color >> 16);
data[i++] = (byte)(color >> 8);
data[i++] = (byte)(color);
if (transparentPixel == idx)
{
int mptr = maskOffset + x / 8;
mask[mptr] |= (byte)(1 << (7 - (x & 0x07)));
}
}
break;
case PixelFormat.Format4bppIndexed:
{
int idx = fData[ptr++] >> 4;
int color = fPalette[idx];
data[i++] = (byte)(color >> 16);
data[i++] = (byte)(color >> 8);
data[i++] = (byte)(color);
if (transparentPixel == idx)
{
int mptr = maskOffset + x / 8;
mask[mptr] |= (byte)(1 << (7 - (x & 0x07)));
}
++x;
if (x < width)
{
idx = fData[ptr++] & 0x0F;
color = fPalette[idx];
data[i++] = (byte)(color >> 16);
data[i++] = (byte)(color >> 8);
data[i++] = (byte)(color);
if (transparentPixel == idx)
{
int mptr = maskOffset + x / 8;
mask[mptr] |= (byte)(1 << (7 - (x & 0x07)));
}
}
}
break;
case PixelFormat.Format1bppIndexed:
{
byte r0 = (byte)(fPalette[0] >> 16);
byte g0 = (byte)(fPalette[0] >> 8);
byte b0 = (byte)(fPalette[0]);
byte r1 = (byte)(fPalette[1] >> 16);
byte g1 = (byte)(fPalette[1] >> 8);
byte b1 = (byte)(fPalette[1]);
byte val = fData[ptr++];
byte m = 0x80;
int j = 0;
int limit = ((width - x) < 8) ? (width - x) : 8;
int mptr = ptr - 1;
while (j < limit)
{
m = (byte)(m >> j);
if ((val & m) == 0)
{
data[i++] = r0;
data[i++] = g0;
data[i++] = b0;
if (transparentPixel == 0)
{
mask[mptr] |= (byte)(1 << j);
}
}
else
{
data[i++] = r1;
data[i++] = g1;
data[i++] = b1;
if (transparentPixel == 1)
{
mask[mptr] |= (byte)(1 << j);
}
}
++j;
}
x += j;
}
break;
default:
{
imageDataDict = null;
imageData = null;
maskDataDict = null;
maskDataStream = null;
return;
}
// Not reached.
}
offset += stride;
maskOffset += maskStride;
}
}
imageData = PostscriptGraphics.ASCII85Encode(data);
maskDataStream = String.Format
("currentfile /ASCII85Decode filter " +
"/ReusableStreamDecode filter " +
"{0} /maskstream exch def ",
PostscriptGraphics.ASCII85Encode(mask));
}
// Constructor.
public PostscriptPen(Pen properties)
{
this.properties = properties;
this.selectedInto = null;
}
// Constructor.
public PostscriptPen(Pen properties)
{
this.properties = properties;
this.selectedInto = null;
}