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Re: How to rotate an image [message #21778 is a reply to message #21772]

Thu, 04 June 2009 21:42

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

forlano wrote on Thu, 04 June 2009 12:08

mr_ped wrote on Wed, 03 June 2009 14:55

In Draw/ImageOp.h there are:

Image RotateClockwise(const Image& img);
Image RotateAntiClockwise(const Image& img);
Image MirrorHorz(const Image& img);
Image MirrorVert(const Image& img);
Image Rotate(const Image& m, int angle);

Thanks. To use them I moved on ImageDraw. Painter seems to complicated because I need to include the rotated image and its original in a qtf document.
Please let me ask one more question:

In
ImageDraw iw(1200, 1000);
if iw is printed on the screen the numbers are pixel?
If I create a qtf object with

QtfRichObject pict( CreateImageObject(iw, 1200, 1000) ) ;
String qtf;
qtf << "[A6 This is some drawing in QTF: " << pict << "&";
PromptOK(qtf);

I see a smaller size. How the image is scaled in the qtf units?

Well, generally, scaling factor varies Smile

In the case of Prompt, scaling is defined by

Zoom GetRichTextStdScreenZoom()
{
	return Zoom(Ctrl::HorzLayoutZoom(96), 600);
}

Mirek

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