public void TileImage(Tile tile)
{
lock (tile)
{
if (tile.Thumbnail == null)
{
return;
}
float xscaleFactor = (float)this.scaledWidth / MosaicWindow.MosaicInfo.TotalWidth;
float yscaleFactor = (float)this.scaledHeight / MosaicWindow.MosaicInfo.TotalHeight;
Size scaledSize = new Size((int)(tile.Width * xscaleFactor + 0.5),
(int)(tile.Height * yscaleFactor + 0.5));
Point scaledPosition = new Point();
scaledPosition.X = (int)(tile.Position.X * xscaleFactor + 0.5);
scaledPosition.Y = (int)(tile.Position.Y * yscaleFactor + 0.5);
Rectangle dstRect = new Rectangle(scaledPosition, scaledSize);
FreeImageAlgorithmsBitmap thumb = null;
lock (tile.ThumbnailLock)
{
thumb = new FreeImageAlgorithmsBitmap(tile.Thumbnail);
}
thumb.ConvertToStandardType(true);
if (thumb.IsGreyScale)
{
thumb.LinearScaleToStandardType(MosaicWindow.MosaicInfo.ThumbnailScaleMinIntensity,
MosaicWindow.MosaicInfo.ThumbnailScaleMaxIntensity);
thumb.SetGreyLevelPalette();
}
if (thumb.ImageType != FREE_IMAGE_TYPE.FIT_BITMAP)
{
MessageBox.Show("Failed to convert tile thumbnail to a standard type ?");
}
thumb.Rescale(dstRect.Size, FREE_IMAGE_FILTER.FILTER_BOX);
thumb.ConvertTo24Bits();
this.bitmap.PasteFromTopLeft(thumb, dstRect.Location, this.imageViewer.BlendingEnabled);
thumb.Dispose();
}
this.Invalidate();
}
private void DrawThumbnailImage(Graphics graphics, Tile tile)
{
if (tile.Thumbnail != null)
{
lock (tile.ThumbnailLock)
{
//tile.Thumbnail.ConvertToStandardType();
FreeImageAlgorithmsBitmap thumb = new FreeImageAlgorithmsBitmap(tile.Thumbnail);
if (thumb.IsGreyScale)
{
thumb.LinearScaleToStandardType(
mosaicInfo.ThumbnailScaleMinIntensity, mosaicInfo.ThumbnailScaleMaxIntensity);
thumb.SetGreyLevelPalette();
}
if (thumb.ImageType != FREE_IMAGE_TYPE.FIT_BITMAP)
{
MessageBox.Show("Failed to convert tile thumbnail to a standard type ?");
}
graphics.DrawImage(thumb.ToBitmap(), tile.Bounds);
thumb.Dispose();
}
}
/*
* if (this.ShowFileNames)
* {
* // Create font and brush.
* Font drawFont = new Font("Arial", 16);
* SolidBrush drawBrush = new SolidBrush(Color.Black);
*
* Point location = new Point(tile.Bounds.Location.X + 100, tile.Bounds.Location.Y + 100);
*
* SizeF size = graphics.MeasureString(tile.FileName, drawFont);
*
* Brush brush = new SolidBrush(Color.FromArgb(50, Color.Gray));
*
* graphics.FillRectangle(brush, location.X - 2, location.Y - 2,
* size.Width + 4, size.Height + 4);
*
* graphics.DrawString(tile.FileName, drawFont, drawBrush,
* new PointF(location.X, location.Y));
* }
*/
if (this.ShowJoins)
{
Pen pen = new Pen(Color.Red, 2.0f);
graphics.DrawRectangle(pen, tile.Bounds);
}
}
private void OnIdle(object sender, EventArgs e)
{
// Nothing todo.
if (this.preventIdleProcessing == true)
{
return;
}
if (this.highResBitmapReady == true)
{
return;
}
if (this.imageSize.IsEmpty)
{
return;
}
if (this.highResBitmap == null)
{
return;
}
if (this.intermediateBitmapDrawn == true && this.NumberOfTilesExceedCacheThreshold)
{
return;
}
this.Cursor = Cursors.WaitCursor;
Rectangle viewRect = ViewedImageSectionRect;
this.idleTiles = Tile.GetTilesIntersectingRectangle(MosaicWindow.MosaicInfo.Items, viewRect);
// Go through the tiles and draw them at the highest resolution.
// This is where gradient blending should go also.
if (this.highResBitmapReady == false && this.currentTileIdleProcess < this.idleTiles.Count)
{
Tile tile = this.idleTiles[this.currentTileIdleProcess];
FreeImageAlgorithmsBitmap fib = tile.LoadFreeImageBitmap();
if (fib.IsGreyScale)
{
fib.LinearScaleToStandardType(mosaicInfo.ScaleMinIntensity, mosaicInfo.ScaleMaxIntensity);
fib.SetGreyLevelPalette();
}
fib.ConvertTo24Bits();
if (this.zoom < 1.0)
{
fib.Rescale(new Size((int)(fib.Width * this.zoom), (int)(fib.Height * this.zoom)), FREE_IMAGE_FILTER.FILTER_BILINEAR);
}
Point pos = new Point();
// We may be using the thumbnails to display so
// we need to work out the scaled coordinates if the zoom is < 1.0
// For 1.0 and above we draw in native res just the area we can see on the screen.
if (this.zoom < 1.0f)
{
pos = tile.Position;
pos.X = (int)(tile.Position.X - viewRect.Location.X + 0.5);
pos.Y = (int)(tile.Position.Y - viewRect.Location.Y + 0.5);
pos.X = (int)(this.zoom * pos.X);
pos.Y = (int)(this.zoom * pos.Y);
}
else
{
pos.X = tile.Position.X - viewRect.Location.X;
pos.Y = tile.Position.Y - viewRect.Location.Y;
}
lastIdleTileRectangles.Add(new Rectangle(pos, fib.Size));
if (highResBitmap.Bounds.IntersectsWith(new Rectangle(pos, fib.Size)))
{
highResBitmap.PasteFromTopLeft(fib, pos, this.blendingEnabled);
}
this.highResBitmapIsReset = false;
fib.Dispose();
// We have completed the last tile
if (this.currentTileIdleProcess == this.idleTiles.Count - 1)
{
// We are finished with the highres tiles
// Draw the joins if neccessary
if (this.ShowJoins)
{
int i = 0;
foreach (Tile t in this.idleTiles)
{
highResBitmap.DrawColourRect(lastIdleTileRectangles[i++], Color.Red, 2);
}
}
lastIdleTileSize.Width = (int)(Tile.GetHorizontalRangeOfTiles(idleTiles) * this.zoom);
lastIdleTileSize.Height = (int)(Tile.GetVerticalRangeOfTiles(idleTiles) * this.zoom);
this.Cursor = Cursors.Default;
this.highResBitmapReady = true;
}
this.currentTileIdleProcess++;
this.Invalidate();
}
}
private void DrawIntermediateBitmap()
{
if (!this.intermediateBitmapDrawn)
{
this.threadController.ReportThreadStarted(this, "Started Zoom");
float aspectRatio = (float)(this.mosaicInfo.TotalWidth) / this.mosaicInfo.TotalHeight;
int scaledWidth = Screen.PrimaryScreen.Bounds.Size.Width;
int scaledHeight = (int)(scaledWidth / aspectRatio + 0.5);
if (this.mosaicInfo.IsGreyScale)
{
this.intermediateBitmap = new FreeImageAlgorithmsBitmap(scaledWidth, scaledHeight, 8);
}
else
{
this.intermediateBitmap = new FreeImageAlgorithmsBitmap(scaledWidth, scaledHeight, 24);
}
float xscaleFactor = (float)scaledWidth / this.mosaicInfo.TotalWidth;
float yscaleFactor = (float)scaledHeight / this.mosaicInfo.TotalHeight;
if (this.intermediateBitmap == null)
{
MessageBox.Show("Failed to create intermediate bitmap");
}
float scale = (float)scaledWidth / this.mosaicInfo.TotalWidth;
Point scaledPosition = new Point();
int count = 0;
foreach (Tile tile in this.mosaicInfo.Items)
{
if (tile.Thumbnail == null)
{
MessageBox.Show("Error thumnail is null");
}
//FreeImageAlgorithmsBitmap thumb = null;
//lock (tile.ThumbnailLock)
//{
// thumb = new FreeImageAlgorithmsBitmap(tile.Thumbnail);
//}
FreeImageAlgorithmsBitmap fib = tile.LoadFreeImageBitmap();
fib.Rescale(new Size((int)(xscaleFactor * fib.Width), (int)(yscaleFactor * fib.Height)), FREE_IMAGE_FILTER.FILTER_BILINEAR);
if (fib.IsGreyScale)
{
fib.LinearScaleToStandardType(mosaicInfo.ScaleMinIntensity, mosaicInfo.ScaleMaxIntensity);
fib.SetGreyLevelPalette();
}
else
{
fib.ConvertToStandardType(true);
}
if (fib.ImageType != FREE_IMAGE_TYPE.FIT_BITMAP)
{
MessageBox.Show("Failed to convert tile thumbnail to a standard type ?");
}
Size scaledSize = new Size((int)(tile.Width * xscaleFactor + 0.5),
(int)(tile.Height * yscaleFactor + 0.5));
scaledPosition.X = (int)(tile.Position.X * xscaleFactor + 0.5);
scaledPosition.Y = (int)(tile.Position.Y * yscaleFactor + 0.5);
Rectangle dstRect = new Rectangle(scaledPosition, scaledSize);
intermediateBitmap.PasteFromTopLeft(fib, scaledPosition, this.BlendingEnabled);
fib.Dispose();
this.threadController.ReportThreadPercentage(this,
"Performing Zoom", count++, this.tiles.Count);
}
}
//intermediateBitmap.ConvertTo24Bits();
this.intermediateBitmapDrawn = true;
this.preventIdleProcessing = false;
this.dontDraw = false;
this.threadController.ReportThreadCompleted(this, "Zoom Completed", false);
this.Redraw();
this.Invalidate();
}