public Size GetSizeOfRotated()
{
Size size;
if (_sizeSpecified)
{
size = CalculateElementSize(PrintItemElement.WholeItem);
int interim = size.Width;
size.Width = size.Height;
size.Height = interim;
size.Width = PrintUtils.RecalculateResolution(size.Width, _printerResolutionY, _printerResolutionX);
size.Height = PrintUtils.RecalculateResolution(size.Height, _printerResolutionX, _printerResolutionY);
}
else
{
Size headerSize = CalculateElementSize(PrintItemElement.Header),
footerSize = CalculateElementSize(PrintItemElement.Footer);
size = new Size();
size.Width = PrintUtils.RecalculateResolution(_actualImageSize.Height, _printerResolutionY, _printerResolutionX);
size.Height = PrintUtils.RecalculateResolution(_actualImageSize.Width, _printerResolutionX, _printerResolutionY);
size.Height += headerSize.Height + footerSize.Height;
size.Height += this.BorderWidth * 2;
size.Width += this.BorderWidth * 2;
}
return(size);
}
public void FitSize(Size bounds, bool placeholderAutoRotate)
{
Size itemSize = CalculateElementSize(PrintItemElement.WholeItem);
if (bounds.Width >= itemSize.Width && bounds.Height >= itemSize.Height)
{
return;
}
if (_imageFitMode == ImageFitMode.CropToFit)
{
SetSize(bounds);
return;
}
if (!_sizeSpecified)
{
FitSize(bounds);
}
else
{
if (!placeholderAutoRotate)
{
SetSize(PrintUtils.FitSizeToBounds(itemSize, bounds));
}
else
{
SetSize(CalculateOptimalItemSize(bounds));
}
}
}
public override void FillPage(PrintPageEventArgs e, System.Collections.ArrayList items, System.Collections.ArrayList coords)
{
while (true)
{
ImagePrintItem item = GetNextItem(e);
if (e.Cancel == true || item == null)
{
break;
}
if (_beginNewPage)
{
AddToNonPlacedItems(item);
_beginNewPage = false;
break;
}
int printerResolutionX, printerResolutionY;
GetValidatedResolution(e, out printerResolutionX, out printerResolutionY);
Point location = new Point(PrintUtils.InchHundredthsToPixels(_placeholderLocation.X, printerResolutionX), PrintUtils.InchHundredthsToPixels(_placeholderLocation.Y, printerResolutionY));
items.Add(item);
coords.Add(location);
}
e.HasMorePages = HasMorePages();
}
protected void InitializePage(PrintPageEventArgs e)
{
int printerResolutionX, printerResolutionY;
GetValidatedResolution(e, out printerResolutionX, out printerResolutionY);
ConvertSpacings(printerResolutionX, printerResolutionY);
_pageWidth = PrintUtils.InchHundredthsToPixels(e.MarginBounds.Width, printerResolutionX);
_pageHeight = PrintUtils.InchHundredthsToPixels(e.MarginBounds.Height, printerResolutionY);
_pageLeft = PrintUtils.InchHundredthsToPixels(e.MarginBounds.X, printerResolutionX);
_pageTop = PrintUtils.InchHundredthsToPixels(e.MarginBounds.Y, printerResolutionY);
// Taking into account shared touch-borders
_pageLeft -= 1;
_pageTop -= 1;
_pageWidth += 1;
_pageHeight += 1;
_pageRight = _pageLeft + _pageWidth - 1;
_pageBottom = _pageTop + _pageHeight - 1;
}
public override void FillPage(PrintPageEventArgs e, System.Collections.ArrayList items, System.Collections.ArrayList coords)
{
System.Diagnostics.Debug.Assert(items != null, "pItems should be allocated by caller");
System.Diagnostics.Debug.Assert(coords != null, "pCoords should be allocated by caller");
ImagePrintItem item = GetNextItem(e);
if (e.Cancel == true || item == null)
{
e.HasMorePages = HasMorePages();
return;
}
int printerResolutionX, printerResolutionY;
GetValidatedResolution(e, out printerResolutionX, out printerResolutionY);
int pageWidth = PrintUtils.InchHundredthsToPixels(e.MarginBounds.Width, printerResolutionX),
pageHeight = PrintUtils.InchHundredthsToPixels(e.MarginBounds.Height, printerResolutionY),
marginX = PrintUtils.InchHundredthsToPixels(e.MarginBounds.X, printerResolutionX),
marginY = PrintUtils.InchHundredthsToPixels(e.MarginBounds.Y, printerResolutionY);
Size pageSize = new Size(pageWidth, pageHeight);
item.FitSize(pageSize, _printOptions.PlaceholderAutoRotate);
Size itemSize = item.GetSize();
Point coord = new Point();
coord.X = marginX + (pageWidth - itemSize.Width) / 2;
coord.Y = marginY + (pageHeight - itemSize.Height) / 2;
items.Add(item);
coords.Add(coord);
e.HasMorePages = HasMorePages();
}
public override void FillPage(PrintPageEventArgs e, System.Collections.ArrayList items, System.Collections.ArrayList coords)
{
System.Diagnostics.Debug.Assert(items != null, "pItems should be allocated by caller");
System.Diagnostics.Debug.Assert(coords != null, "pCoords should be allocated by caller");
int printerResolutionX, printerResolutionY;
GetValidatedResolution(e, out printerResolutionX, out printerResolutionY);
ConvertSpacings(printerResolutionX, printerResolutionY);
int curX = 0,
curY = 0,
leftMargin = PrintUtils.InchHundredthsToPixels(e.MarginBounds.X, printerResolutionX),
topMargin = PrintUtils.InchHundredthsToPixels(e.MarginBounds.Y, printerResolutionY),
maxHeight = -1,
pageWidth = PrintUtils.InchHundredthsToPixels(e.MarginBounds.Width, printerResolutionX),
pageHeight = PrintUtils.InchHundredthsToPixels(e.MarginBounds.Height, printerResolutionY);
Size pageSize = new Size(pageWidth, pageHeight);
bool isPageFilled = false;
while (!isPageFilled)
{
bool isRowFilled = false;
maxHeight = -1;
while (!isRowFilled)
{
ImagePrintItem item = GetNextItem(e);
if (e.Cancel == true)
{
return;
}
if (item == null)
{
isPageFilled = true;
break;
}
item.FitSize(pageSize, _printOptions.PlaceholderAutoRotate);
Size itemSize = item.GetSize();
Size rotatedSize = item.GetSizeOfRotated();
// Trying to insert (maybe with rotation, if it allowed)
int freeSpaceWidth = pageWidth - curX,
freeSpaceHeight = pageHeight - curY;
if (itemSize.Width <= freeSpaceWidth && itemSize.Height <= freeSpaceHeight)
{
// Item placed successfully
items.Add(item);
coords.Add(new Point(curX + leftMargin, curY + topMargin));
curX += itemSize.Width;
if (itemSize.Height > maxHeight)
{
maxHeight = itemSize.Height;
}
}
else if (_printOptions.PlaceholderAutoRotate && (rotatedSize.Width <= freeSpaceWidth && rotatedSize.Height <= freeSpaceHeight))
{
// Item placed successfully after a 90-degree rotate.
items.Add(item);
coords.Add(new Point(curX + leftMargin, curY + topMargin));
item.SetSize(rotatedSize);
curX += rotatedSize.Width;
if (rotatedSize.Height > maxHeight)
{
maxHeight = rotatedSize.Height;
}
}
else
{
// Item cannot be inserted into current row - putting it into
// NonPlacedItems queue for trying to insert into next rows.
AddToNonPlacedItems(item);
isRowFilled = true;
}
curX += _horizontalSpacing;
if (curX >= pageWidth)
{
isRowFilled = true;
}
}
// Shifting to next row. If intMaxHeight == -1 - this means that
// no one Item has been inserted on current step => current Item
// of the queue can be placed only on next page => this page is filled.
if (maxHeight == -1)
{
isPageFilled = true;
}
else
{
curX = 0;
curY += maxHeight + _verticalSpacing;
if (curY > pageHeight)
{
isPageFilled = true;
}
}
}
e.HasMorePages = HasMorePages();
}
protected void ConvertSpacings(int printerResolutionX, int printerResolutionY)
{
_horizontalSpacing = PrintUtils.InchHundredthsToPixels(_printOptions.HorizontalSpacing, printerResolutionX);
_verticalSpacing = PrintUtils.InchHundredthsToPixels(_printOptions.VerticalSpacing, printerResolutionY);
}
private void FitSize(Size bounds)
{
Debug.Assert(!_sizeSpecified);
// If item less than bounds - just exit.
Size itemSize = CalculateElementSize(PrintItemElement.WholeItem);
if (itemSize.Width <= bounds.Width && itemSize.Height <= bounds.Height)
{
return;
}
// Calculating area of bounded rectangle, where item could be placed
Size boundedAreaSize = bounds,
headerSize = CalculateElementSize(PrintItemElement.Header),
footerSize = CalculateElementSize(PrintItemElement.Footer);
boundedAreaSize.Width -= this.BorderWidth * 2;
boundedAreaSize.Height -= this.BorderWidth * 2 + headerSize.Height + footerSize.Height;
if (boundedAreaSize.Width <= 0 || boundedAreaSize.Height <= 0)
{
SetSize(bounds);
return;
}
// Fitting size (maybe with rotation)
Size imageSize = CalculateElementSize(PrintItemElement.Image);
if (_imageAutoRotate)
{
Size rotatedSize = imageSize;
int tmp = rotatedSize.Width;
rotatedSize.Width = rotatedSize.Height;
rotatedSize.Height = tmp;
if (rotatedSize.Width <= boundedAreaSize.Width && rotatedSize.Height <= boundedAreaSize.Height)
{
imageSize = rotatedSize;
}
else
{
float originalScale = (float)boundedAreaSize.Width / imageSize.Width;
if (originalScale * imageSize.Height > boundedAreaSize.Height)
{
originalScale = (float)boundedAreaSize.Height / imageSize.Height;
}
float rotatedScale = (float)boundedAreaSize.Width / rotatedSize.Width;
if (rotatedScale * rotatedSize.Height > boundedAreaSize.Height)
{
rotatedScale = (float)boundedAreaSize.Height / rotatedSize.Height;
}
if (Math.Abs(1 - originalScale) >= Math.Abs(1 - rotatedScale))
{
imageSize = rotatedSize;
}
}
}
itemSize = PrintUtils.FitSizeToBounds(imageSize, boundedAreaSize);
itemSize.Width += this.BorderWidth * 2;
itemSize.Height += this.BorderWidth * 2 + headerSize.Height + footerSize.Height;
SetSize(itemSize);
}
private Size CalculateOptimalItemSize(Size bounds)
{
Size itemSize = CalculateElementSize(PrintItemElement.WholeItem);
if (itemSize.Width < bounds.Width && itemSize.Height < bounds.Height)
{
throw new Aurigma.GraphicsMill.UnexpectedException();
}
if (!_sizeSpecified)
{
throw new Aurigma.GraphicsMill.UnexpectedException();
}
Size headerSize = CalculateElementSize(PrintItemElement.Header),
footerSize = CalculateElementSize(PrintItemElement.Footer);
float maxScale = float.MinValue;
Size bestSize = Size.Empty;
for (int i = 0; i < 2; i++)
{
Size fittedItemSize;
if (i == 0)
{
fittedItemSize = PrintUtils.FitSizeToBounds(itemSize, bounds);
}
else
{
fittedItemSize = PrintUtils.FitSizeToBounds(GetSizeOfRotated(), bounds);
}
for (int j = 0; j < 2; j++)
{
Size fittedImageSize = fittedItemSize;
fittedImageSize.Height -= headerSize.Height + footerSize.Height + 2 * this.BorderWidth;
fittedImageSize.Width -= 2 * this.BorderWidth;
Size imageSize;
float scale;
if (j == 0)
{
imageSize = PrintUtils.ResizeProportionally(_actualImageSize, fittedImageSize);
scale = (float)imageSize.Width / _actualImageSize.Width;
}
else
{
imageSize = PrintUtils.ResizeProportionally(new Size(_actualImageSize.Height, _actualImageSize.Width), fittedImageSize);
scale = (float)imageSize.Width / _actualImageSize.Height;
}
if (scale > maxScale)
{
maxScale = scale;
bestSize = fittedItemSize;
}
if (!_imageAutoRotate)
{
break;
}
}
}
return(bestSize);
}
protected virtual ImagePrintItem GetNextItem(PrintPageEventArgs e)
{
if (!_eventHasMoreImages)
{
return(null);
}
// Getting next image & info from IImageProvider
PrintPlaceholder imagePlaceholder;
if (_imageProvider != null && !_imageProvider.IsEmpty())
{
imagePlaceholder = _imageProvider.GetNext();
}
else
{
imagePlaceholder = new PrintPlaceholder();
}
// Firing PrintImage event in ImagePrintDocument
QueryImageEventArgs queryImageEventArgs = new QueryImageEventArgs();
queryImageEventArgs.PrintPlaceholder = imagePlaceholder;
queryImageEventArgs.PrintOptions = _printOptions;
OnQueryImageEvent(queryImageEventArgs);
if (queryImageEventArgs.Cancel == true || queryImageEventArgs.PrintPlaceholder.Image == null)
{
e.Cancel = true;
return(null);
}
int printerResolutionX, printerResolutionY;
GetValidatedResolution(e, out printerResolutionX, out printerResolutionY);
// If we didn't got image from IImageProvider or from user's handler
// of PrintImage event - just return null.
if (imagePlaceholder.Image == null)
{
return(null);
}
// Filling result ImagePrintItem
ImagePrintItem item = new ImagePrintItem(printerResolutionX, printerResolutionY);
item.Image = imagePlaceholder.Image;
item.ImageFitMode = _printOptions.ImageFitMode;
item.ImageAutoRotate = _printOptions.ImageAutoRotate;
item.InterpolationMode = _printOptions.InterpolationMode;
item.HeaderFont = _printOptions.HeaderFont;
item.FooterFont = _printOptions.FooterFont;
item.HeaderColor = _printOptions.HeaderColor;
item.FooterColor = _printOptions.FooterColor;
item.HeaderTrimmming = _printOptions.HeaderTrimming;
item.FooterTrimmming = _printOptions.FooterTrimming;
item.HeaderAlignment = _printOptions.HeaderAlignment;
item.FooterAlignment = _printOptions.FooterAlignment;
// Header & footer
if (_printOptions.HeaderEnabled)
{
item.HeaderText = imagePlaceholder.Header;
}
if (_printOptions.FooterEnabled)
{
item.FooterText = imagePlaceholder.Footer;
}
if (_printOptions.BorderEnabled)
{
int pixelWidth = PrintUtils.InchHundredthsToPixels(_printOptions.BorderWidth, printerResolutionX);
item.BorderPen = new System.Drawing.Pen(_printOptions.BorderColor, pixelWidth);
}
// Setting external size. Size can be redefined in QueryImageEventHandler
if (imagePlaceholder.Size.Width != 0 && imagePlaceholder.Size.Height != 0)
{
Size resizeSize = new Size();
resizeSize.Width = PrintUtils.InchHundredthsToPixels(imagePlaceholder.Size.Width, printerResolutionX);
resizeSize.Height = PrintUtils.InchHundredthsToPixels(imagePlaceholder.Size.Height, printerResolutionY);
item.SetSize(resizeSize);
}
else if (_printOptions.PlaceholderSize.Width != 0 && _printOptions.PlaceholderSize.Height != 0)
{
Size resizeSize = new Size();
resizeSize.Width = PrintUtils.InchHundredthsToPixels(_printOptions.PlaceholderSize.Width, printerResolutionX);
resizeSize.Height = PrintUtils.InchHundredthsToPixels(_printOptions.PlaceholderSize.Height, printerResolutionY);
item.SetSize(resizeSize);
}
return(item);
}
