public System.Drawing.Rectangle DrawCached(Aurigma.GraphicsMill.Drawing.Graphics g, float zoom, System.Drawing.Rectangle viewport, System.Drawing.Rectangle renderingRegion)
{
if (!HasActualData(zoom, renderingRegion))
{
return(System.Drawing.Rectangle.Empty);
}
System.Drawing.Rectangle intersection = System.Drawing.Rectangle.Intersect(renderingRegion, _viewport),
dstRect = intersection,
srcRect = intersection;
srcRect.Offset(-_viewport.X, -_viewport.Y);
dstRect.Offset(-viewport.X, -viewport.Y);
g.DrawImage(_image, dstRect, srcRect, Aurigma.GraphicsMill.Transforms.CombineMode.Copy, 1.0f, Aurigma.GraphicsMill.Transforms.ResizeInterpolationMode.Low);
return(intersection);
}
private void DrawViewportBackground(Aurigma.GraphicsMill.Bitmap canvas, System.Drawing.Rectangle viewport, System.Drawing.Rectangle renderingRegion)
{
using (Aurigma.GraphicsMill.Drawing.Graphics g = canvas.GetGraphics())
{
System.Drawing.Rectangle screenRect = renderingRegion;
screenRect.X -= viewport.X;
screenRect.Y -= viewport.Y;
if (_workspaceBackgroundStyle == Aurigma.GraphicsMill.WinControls.WorkspaceBackgroundStyle.Grid)
{
int gridPatternSize = 2 * bgGridCellSize;
int patternOffsetX = renderingRegion.X % gridPatternSize,
patternOffsetY = renderingRegion.Y % gridPatternSize;
CreateBackgroundGridTemplate(renderingRegion.Width + gridPatternSize);
System.Drawing.Rectangle srcRect = new System.Drawing.Rectangle(0, 0, _bgGridTemplate.Width, _bgGridTemplate.Height),
dstRect = new System.Drawing.Rectangle(renderingRegion.Location, srcRect.Size);
dstRect.Offset(-viewport.X, -viewport.Y);
dstRect.Offset(-patternOffsetX, -patternOffsetY);
g.SetClip(new System.Drawing.Rectangle(renderingRegion.X - viewport.X, renderingRegion.Y - viewport.Y, renderingRegion.Width, renderingRegion.Height));
try
{
int templateRepeats = (int)System.Math.Ceiling((float)(renderingRegion.Height + patternOffsetY) / _bgGridTemplate.Height);
for (int j = 0; j < templateRepeats; j++)
{
g.DrawImage(_bgGridTemplate, dstRect, /*srcRect,*/ Aurigma.GraphicsMill.Transforms.CombineMode.Copy, 1.0f, Aurigma.GraphicsMill.Transforms.ResizeInterpolationMode.NearestNeighbour);
dstRect.Offset(0, _bgGridTemplate.Height);
}
}
finally
{
g.ResetClip();
}
}
else if (_workspaceBackgroundStyle == Aurigma.GraphicsMill.WinControls.WorkspaceBackgroundStyle.Solid)
{
g.FillRectangle(new Aurigma.GraphicsMill.Drawing.SolidBrush(_workspaceBackColor1), screenRect);
}
else
{
g.FillRectangle(new Aurigma.GraphicsMill.Drawing.SolidBrush(_backColor), screenRect);
}
}
}