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SvgDraw [message #14814]

Sat, 15 March 2008 18:17

kodos
Messages: 111
Registered: March 2008

Experienced Member

Hi,

I have written a SvgDraw class to write SVG files. The most common features of the Draw class are supported right now. Credits also have to go to mrjt for some help Smile

.

If I get a test case for features that aren't implemented yet, I will try to implement them Smile

.

Simple example:

SvgDraw draw(450, 450);
draw.DrawText(10, 10, "Hello World", Roman(30).Bold());
SaveFile(_fileName + ".svg", draw.Finish());

Changelog:

19 March 2008:
   - Fixed some TODOs around clipping and offset
   - Added SVGZ support. (Call Finish(true) )
   - Added some CSS in the header of the file to reduce the size of bigger images.

Attachment: SvgDraw.7z
(Size: 3.11KB, Downloaded 388 times)

[Updated on: Thu, 20 March 2008 18:12]

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Re: SvgDraw [message #14885 is a reply to message #14814]

Tue, 18 March 2008 22:31

mirek
Messages: 14257
Registered: November 2005

Ultimate Member

300 lines to get SVG output, not bad Smile

What about these TODOs?

IsPainting is simple one, just make it return true, but others will need some sort of svg implementation...

Mirek

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Re: SvgDraw [message #14887 is a reply to message #14814]

Tue, 18 March 2008 23:06

kodos
Messages: 111
Registered: March 2008

Experienced Member

Most of these TODOs I don't know what they should do, so I need an explanation or a test case to implement these Smile

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Re: SvgDraw [message #14898 is a reply to message #14887]

Wed, 19 March 2008 09:40

mirek
Messages: 14257
Registered: November 2005

Ultimate Member

I see

bool SvgDraw::ExcludeClipOp(const Rect& r)

Removes the r from current painting clip - means anything you draw inside r will not be drawn.

bool SvgDraw::IntersectClipOp(const Rect& r)

Painting clip will be intersection of current and r.

Rect SvgDraw::GetClipOp() const

You should return minal bounding rect for current clip. Anyway, returning Rect(-INT_MAX, -INT_MAX, INT_MAX, INT_MAX) is OK as well.

The rest can wait. However, the real question: Does SVG embed fonts? IMO, it should, just like PDF. In PdfDraw, 95% of code is dealing with this Wink

Mirek

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Re: SvgDraw [message #14931 is a reply to message #14898]

Thu, 20 March 2008 18:31

kodos
Messages: 111
Registered: March 2008

Experienced Member

Thanks for the info Smile

I updated the first post.

luzr wrote on Wed, 19 March 2008 09:40

However, the real question: Does SVG embed fonts? IMO, it should, just like PDF.

It is possible to embed fonts in SVG but:
1) I have written this for generating images for the web, and with fonts in the file, the file size grows very fast.
2) I haven't found an example which actually works in any viewer I have (Firefox3 beta, Opera 9.5 beta, Incsape)

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