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{..............................................................................}
{ Summary }
{ Converts a monochrome image as a PCB Logo into a series of thin }
{ PCB tracks that can be placed on a PCB document as a logo. }
{ }
{ Copyright (c) 2008 by Altium Limited }
{ }
{ Version 1.5 }
{ }
{ Changes For Version 1.5 }
{ - Fix off by one errors accessing Canvas.Pixels }
{ - Make more tolerant of non-monochrome images, now tracks are created at }
{ the boundary of white and non-white pixels }
{ - Use user customized layer names }
{..............................................................................}
Var
gvBoard : IPCB_Board;
{......................................................................................................................}
Procedure RunConverterScript;
Begin
ConverterForm.ShowModal;
End;
{......................................................................................................................}
{......................................................................................................................}
Procedure PlaceATrack(ABoard : IPCB_Board; X1,Y1,X2,Y2 : TCoord; ALayer : TLayer, AWidth : Float);
Var
PCBTrack : IPCB_Track;
Sheet : IPCB_Sheet;
OffSet : TCoord;
Begin
// obtain the coordinates of the sheet so can place logo within the board
Sheet := ABoard.PCBSheet;
OffSet := MilsToCoord(100);
// place a new track on the blank PCB
PCBTrack := PCBServer.PCBObjectFactory(eTrackObject, eNoDimension, eCreate_Default);
PCBTrack.Width := MilsToCoord(1) * AWidth;
PCBTrack.X1 := Sheet.SheetX + MilsToCoord(X1) + Offset;
PCBTrack.Y1 := Sheet.SheetY + MilsToCoord(Y1) + Offset;
PCBTrack.X2 := Sheet.SheetX + MilsToCoord(X2) + Offset;
PCBTrack.Y2 := Sheet.SheetY + MilsToCoord(Y2) + Offset;
PCBTrack.Layer := ALayer;
ABoard.AddPCBObject(PCBTrack);
End;
{......................................................................................................................}
{......................................................................................................................}
Procedure ScalingFactorChange(Dummy : TObject);
Begin
ConverterForm.lImageSize.Caption := FloatToStr((ConverterForm.Image1.Picture.Width + 1) * ConverterForm.eScalingFactor.Text) + ' x ' +
FloatToStr((ConverterForm.Image1.Picture.Height + 1) * ConverterForm.eScalingFactor.Text) + ' mils';
End;
{......................................................................................................................}
{......................................................................................................................}
Procedure TConverterForm.eScalingFactorChange(Sender: TObject);
Begin
ScalingFactorChange(Nil);
End;
{......................................................................................................................}
{......................................................................................................................}
Procedure TConverterForm.loadbuttonClick(Sender: TObject);
Var
I, J : Integer;
Begin
If OpenPictureDialog1.Execute then
Begin
XPProgressBar1.Position := 0;
XStatusBar1.SimpleText := ' Loading...';
XStatusBar1.Update;
// loading a monochrome bitmap only
Image1.Picture.LoadFromFile(OpenPictureDialog1.FileName);
// Check if image is monochrome, otherwise prompt a warning
If Image1.Picture.Bitmap.PixelFormat <> pf1bit Then
Begin
For J := 0 to Image1.Picture.Height - 1 Do
For I := 0 to Image1.Picture.Height - 1 Do
Begin
If Image1.Canvas.Pixels[I,J] <> clWhite Then
Image1.Canvas.Pixels[I,J] := clBlack;
End;
End;
ScalingFactorChange(Nil);
convertbutton.Enabled := True;
LoadButton.Enabled := False;
XStatusBar1.SimpleText := ' Ready...';
XStatusBar1.Update;
End;
End;
{......................................................................................................................}
{......................................................................................................................}
procedure TConverterForm.ConverterFormCreate(Sender: TObject);
begin
// Create a standalone blank PCB document and add the new logo to it
// from the PCBLogoContainer d.s.
CreateNewDocumentFromDocumentKind('PCB');
// GetCurrentPCBBoard returns a IPCB_Board type.
gvBoard := PCBServer.GetCurrentPCBBoard;
If gvBoard = Nil Then
Begin
ShowWarning('A PCB document is not created properly.');
ShowModal := mrError;
End
Else
SetupComboBoxFromLayer(ComboBoxLayers, gvBoard);
end;
{......................................................................................................................}
{......................................................................................................................}
Procedure TConverterForm.convertbuttonClick(Sender: TObject);
Var
x, y, x1, FlipY, FlipX : Integer;
PixelColor : TColor;
Start : Boolean;
//PCBBoard : IPCB_Board;
PCBLayer : TLayer;
TrackWidth : Integer;
Begin
Screen.Cursor := crHourGlass;
XPProgressBar1.Max := Image1.Picture.Height;
PCBLayer := GetLayerFromComboBox(ComboBoxLayers, gvBoard);
TrackWidth := StrToFloat(eScalingFactor.Text);
// ensure the layer selected is displayed in the PCB workspace
gvBoard.LayerIsDisplayed[PCBLayer] := True;
For Y := 0 to Image1.Picture.Height - 1 Do
Begin
XPProgressBar1.Position := Y;
XPProgressBar1.Update;
XStatusBar1.SimpleText := ' Converting...';
XStatusBar1.Update;
If (cbMirrorY.Checked) Then
FlipY := Y
Else
FlipY := Abs(Y - Image1.Picture.Height - 1);
FlipY := FlipY * StrToFloat(eScalingFactor.Text);
// Denotes the start of a line on a row of an image
Start := False;
For X := 0 To Image1.Picture.Width Do
Begin
If (cbNegative.Checked) Then
PixelColor := clBlack
Else
PixelColor := clWhite;
If X < Image1.Picture.Width Then
PixelColor := Image1.Canvas.Pixels[x,y];
If cbMirrorX.Checked Then
FlipX := abs(X - Image1.Picture.Width)
Else
FlipX := X;
FlipX := FlipX * StrToFloat(eScalingFactor.Text);
If (cbNegative.Checked) Then
Begin
Case PixelColor Of
clWhite :
If Not (Start) Then
Begin
x1 := FlipX;
Start := True;
End;
Else
Begin
If (Start) Then
PlaceATrack(gvBoard, X1,FlipY,FlipX,FlipY, PCBLayer, TrackWidth);
Start := False;
End;
End;
End
Else
Begin
Case PixelColor Of
clWhite:
Begin
If (Start) Then
PlaceATrack(gvBoard, X1,FlipY,FlipX,FlipY, PCBLayer, TrackWidth);
Start := False;
End;
Else
If Not (Start) Then
Begin
x1 := FlipX;
Start := True;
End;
End;
End;
End;
End;
Screen.Cursor := crArrow;
XStatusBar1.SimpleText := ' Done...';
XStatusBar1.Update;
// toggle buttons
ConvertButton.Enabled := False;
LoadButton.Enabled := True;
// clear out progress bar
XPProgressBar1.Position := 0;
XPProgressBar1.Update;
//clear out image
Image1.Picture.Bitmap := nil;
Client.SendMessage('PCB:Zoom', 'Action=All' , 255, Client.CurrentView);
End;
{......................................................................................................................}
{......................................................................................................................}
Procedure TConverterForm.exitbuttonClick(Sender: TObject);
Begin
Close;
End;
{......................................................................................................................}

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