Psd-Export

This code helper exports images to Photoshop "Psd" file format as single image or multiple layers It supports only one color mode RGBA , no other features are supported; channel color data is provided by the TPsdLayer class via GetChannelScanLine method, it''s possible to create derived class and override this method to process another type of image.

Background image

When exporting mutiple layers it's not impotant to use background image which should represente the entire layers since it will be generated automoticly by Photoshop once edited.

var
 Psd:TPsdBuilder;
 BmpLayer :TPsdBitmapLayer;
 Filename:string;
begin
  Psd:=TPsdBuilder.Create;
  Psd.PsdCompression := psComRLE;
  Psd.PsdLayerCompression := psComZip;

  // add first image
  BmpLayer := Psd.NewLayer();
  BmpLayer.Name := 'Layer 1';
  BmpLayer.Bitmap := GR.Picture.Bitmap; // bitmap 32bit with alpha chennel
  // add second image
  BmpLayer := Psd.NewLayer();
  BmpLayer.Left := 200;
  BmpLayer.Name := 'Layer 2';
  BmpLayer.Bitmap := Image1.Picture.Bitmap; // bitmap 32bit with alpha chennel

  //exportation
  Psd.SetSize(500,200);
  Psd.Build;
  if PromptForFilename(Filename,'PS files (*.psd)|*.psd','psd','','',True) then
    Psd.Stream.SaveToFile(Filename);