public override void Paint(System.Drawing.Graphics g, IPaintContext paintContext)
{
if (null == _cachedArea)
{
return;
}
bool orientationIsVertical = IsOrientationVertical;
bool scaleIsReversed = IsScaleReversed;
int pixelH = orientationIsVertical ? _bitmapPixelsAcross : _bitmapPixelsAlong;
int pixelV = orientationIsVertical ? _bitmapPixelsAlong : _bitmapPixelsAcross;
if (null == _bitmap || _bitmap.Width != pixelH || _bitmap.Height != pixelV)
{
if (null != _bitmap)
{
_bitmap.Dispose();
}
_bitmap = new Bitmap(pixelH, pixelV, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
}
Data.AltaxoVariant porg;
Data.AltaxoVariant pend;
NumericalScale originalZScale;
Plot.IColorProvider colorProvider;
if (null != PlotItem)
{
porg = PlotItem.Style.Scale.OrgAsVariant;
pend = PlotItem.Style.Scale.EndAsVariant;
originalZScale = PlotItem.Style.Scale;
colorProvider = PlotItem.Style.ColorProvider;
}
else
{
porg = 0;
pend = 1;
originalZScale = new LinearScale();
colorProvider = new Plot.ColorProvider.ColorProviderBGRY();
}
var legendScale = (NumericalScale)ScaleWithTicks;
var legendTickSpacing = ScaleWithTicks.TickSpacing;
// Fill the bitmap
for (int i = 0; i < _bitmapPixelsAlong; i++)
{
double r = (scaleIsReversed ^ orientationIsVertical) ? 1 - i / (double)(_bitmapPixelsAlong - 1) : i / (double)(_bitmapPixelsAlong - 1);
double l = originalZScale.PhysicalToNormal(legendScale.NormalToPhysical(r));
var color = colorProvider.GetColor(l);
if (orientationIsVertical)
{
for (int j = 0; j < _bitmapPixelsAcross; j++)
{
_bitmap.SetPixel(j, i, color);
}
}
else
{
for (int j = 0; j < _bitmapPixelsAcross; j++)
{
_bitmap.SetPixel(i, j, color);
}
}
}
var graphicsState = g.Save();
TransformGraphics(g);
{
// Three tricks are neccessary to get the color legend (which is the bitmap) drawn smooth and uniformly:
// Everything other than this will result in distorted image, or soft (unsharp) edges
var graphicsState2 = g.Save(); // Of course, save the graphics state so we can make our tricks undone afterwards
g.InterpolationMode = InterpolationMode.Default; // Trick1: Set the interpolation mode, whatever it was before, back to default
g.PixelOffsetMode = PixelOffsetMode.Default; // Trick2: Set the PixelOffsetMode, whatever it was before, back to default
g.DrawImage(_bitmap,
new RectangleF(0, 0, (float)Size.X, (float)Size.Y),
new Rectangle(0, 0, pixelH - 1, pixelV - 1), GraphicsUnit.Pixel); // Trick3: Paint both in X and Y direction one pixel less than the source bitmap acually has, this prevents soft edges
g.Restore(graphicsState2); // make our tricks undone here
}
_axisStyles.Paint(g, paintContext, _cachedArea);
g.Restore(graphicsState);
}
public override void Paint(System.Drawing.Graphics g, IPaintContext paintContext)
{
if (null == _cachedArea)
return;
bool orientationIsVertical = IsOrientationVertical;
bool scaleIsReversed = IsScaleReversed;
int pixelH = orientationIsVertical ? _bitmapPixelsAcross : _bitmapPixelsAlong;
int pixelV = orientationIsVertical ? _bitmapPixelsAlong : _bitmapPixelsAcross;
if (null == _bitmap || _bitmap.Width != pixelH || _bitmap.Height != pixelV)
{
if (null != _bitmap)
_bitmap.Dispose();
_bitmap = new Bitmap(pixelH, pixelV, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
}
Data.AltaxoVariant porg;
Data.AltaxoVariant pend;
NumericalScale originalZScale;
Plot.IColorProvider colorProvider;
if (null != PlotItem)
{
porg = PlotItem.Style.Scale.OrgAsVariant;
pend = PlotItem.Style.Scale.EndAsVariant;
originalZScale = PlotItem.Style.Scale;
colorProvider = PlotItem.Style.ColorProvider;
}
else
{
porg = 0;
pend = 1;
originalZScale = new LinearScale();
colorProvider = new Plot.ColorProvider.ColorProviderBGRY();
}
var legendScale = (NumericalScale)ScaleWithTicks;
var legendTickSpacing = ScaleWithTicks.TickSpacing;
// Fill the bitmap
for (int i = 0; i < _bitmapPixelsAlong; i++)
{
double r = (scaleIsReversed ^ orientationIsVertical) ? 1 - i / (double)(_bitmapPixelsAlong - 1) : i / (double)(_bitmapPixelsAlong - 1);
double l = originalZScale.PhysicalToNormal(legendScale.NormalToPhysical(r));
var color = colorProvider.GetColor(l);
if (orientationIsVertical)
{
for (int j = 0; j < _bitmapPixelsAcross; j++)
_bitmap.SetPixel(j, i, color);
}
else
{
for (int j = 0; j < _bitmapPixelsAcross; j++)
_bitmap.SetPixel(i, j, color);
}
}
var graphicsState = g.Save();
TransformGraphics(g);
{
// Three tricks are neccessary to get the color legend (which is the bitmap) drawn smooth and uniformly:
// Everything other than this will result in distorted image, or soft (unsharp) edges
var graphicsState2 = g.Save(); // Of course, save the graphics state so we can make our tricks undone afterwards
g.InterpolationMode = InterpolationMode.Default; // Trick1: Set the interpolation mode, whatever it was before, back to default
g.PixelOffsetMode = PixelOffsetMode.Default; // Trick2: Set the PixelOffsetMode, whatever it was before, back to default
g.DrawImage(_bitmap,
new RectangleF(0, 0, (float)Size.X, (float)Size.Y),
new Rectangle(0, 0, pixelH - 1, pixelV - 1), GraphicsUnit.Pixel); // Trick3: Paint both in X and Y direction one pixel less than the source bitmap acually has, this prevents soft edges
g.Restore(graphicsState2); // make our tricks undone here
}
_axisStyles.Paint(g, paintContext, _cachedArea);
g.Restore(graphicsState);
}
