Change Bitmap Cavas Size Without Loosing Bitmap

[shadowrecon]

This function was made for SPS since Scar doesn't have the ability to re-size bitmaps with TBitmaps. I dont know if it is the 'best' way but it does work.

 

 

[scar]

// Author: ShadowRecon

// Makes Bitmap Larger, without loosing orginal image.

// Wish there was a more effiecnt way of doing this..

Procedure SetBMPSize(Var BMP: {$IFNDEF SCAR335_UP} Integer {$ELSE} TSCARBitmap {$ENDIF}; Const nWi,nHe: Integer);

Var

tempBMP: {$IFNDEF SCAR335_UP} Integer {$ELSE} TSCARBitmap {$ENDIF};

Begin

tempBMP := BMP;

{$IFNDEF SCAR335_UP}

BMP := BitmapFromString(nWi,nHe,'');

FastDrawTransparent(0,0,tempBMP, BMP);

FreeBitmap(tempBMP);

{$ELSE}

BMP := TSCARBitmap.Create('');

BMP.SetSize(nWi, nHe);

tempBMP.DrawTo(BMP, 0, 0);

tempBMP.Free;

{$ENDIF}

end;

[/scar]

Edited July 17, 2012 by shadowrecon

[FHannes]

I don't really understand why you can't use [wiki=ResizeBitmap]ResizeBitmap[/wiki].

[shadowrecon]

I don't really understand why you can't use [wiki=ResizeBitmap]ResizeBitmap[/wiki].

 

Because im resizing the bitmap canvas not the actual bitmap. Creating blank space. That function actually changes the size of the bitmap. This keeps the original size, and adds black space to the bitmaps canvas.

 

 

This was used for Putting the map pieces together into one big map.

 

 

That is why i cant use that function, better understand?

Edited May 30, 2012 by shadowrecon

[FHannes]

Yes, I get it now, I guess I wasn't paying much attention to the actual code you posted I should probably add a function to resize the canvas to SCAR, but when I do so I'll probably add a parameter to anchor the bitmap in a certain position, like you can do when resizing the canvas in photo editing software.

[shadowrecon]

Yes, I get it now, I guess I wasn't paying much attention to the actual code you posted I should probably add a function to resize the canvas to SCAR, but when I do so I'll probably add a parameter to anchor the bitmap in a certain position, like you can do when resizing the canvas in photo editing software.

 

A actual function within scar would be pretty sweet, not to include a lot faster im sure! This function can be a bit slow when using large bitmaps (500x500) but it works.

[TerryKig]

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