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Re: Using Qtf forgets control font [message #18040 is a reply to message #18037]

Sun, 07 September 2008 20:47

mirek is currently offline

mirek
Messages: 14261
Registered: November 2005

Ultimate Member

cbpporter wrote on Sun, 07 September 2008 08:08

luzr wrote on Sun, 07 September 2008 14:35

Ehm, after all these posts about points being meaningless for screen? Smile

Smile

Well my problem is simple. I have Font selection dialog. User chooses size 16 for example. In U++ size is in pixels. User chooses size 16 in different program. Size is in points. User complains that I have bug with font sizes Sad

Sad

. After a simple investigation, it seems that this is what is needed to get same size:

Font& Font::HeightPt(int pt)
{
    height = pt * sScreenPPI / 72;
    return *this;
}

Not extensively tested, but seems to generate pixel perfect matches.

That is certainly reasonable requirement, but makes me really wonder whether you need a method for this.

IMO, simple function (PointsToPixels) would be enough.

Mirek

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[Message index]

		Using Qtf forgets control font By: cbpporter on Mon, 07 July 2008 14:04
		Re: Using Qtf forgets control font By: mirek on Mon, 07 July 2008 15:30
		Re: Using Qtf forgets control font By: cbpporter on Mon, 07 July 2008 16:53
		Re: Using Qtf forgets control font By: mirek on Mon, 07 July 2008 22:51
		Re: Using Qtf forgets control font By: cbpporter on Tue, 08 July 2008 13:47
		Re: Using Qtf forgets control font By: zsolt on Tue, 08 July 2008 14:38
		Re: Using Qtf forgets control font By: cbpporter on Tue, 08 July 2008 15:28
		Re: Using Qtf forgets control font By: cbpporter on Fri, 29 August 2008 21:09
		Re: Using Qtf forgets control font By: cbpporter on Fri, 29 August 2008 22:39
		Re: Using Qtf forgets control font By: cbpporter on Sat, 30 August 2008 13:43
		Re: Using Qtf forgets control font By: mirek on Sat, 30 August 2008 14:05
		Re: Using Qtf forgets control font By: cbpporter on Sat, 30 August 2008 14:10
		Re: Using Qtf forgets control font By: mirek on Sat, 30 August 2008 14:53
		Re: Using Qtf forgets control font By: cbpporter on Sat, 30 August 2008 22:08
		Re: Using Qtf forgets control font By: mirek on Sun, 31 August 2008 10:46
		Re: Using Qtf forgets control font By: mirek on Sun, 31 August 2008 10:51
		Re: Using Qtf forgets control font By: cbpporter on Sun, 31 August 2008 13:39
		Re: Using Qtf forgets control font By: mirek on Mon, 01 September 2008 13:37
		Re: Using Qtf forgets control font By: cbpporter on Mon, 01 September 2008 14:46
		Re: Using Qtf forgets control font By: cbpporter on Thu, 04 September 2008 05:08
		Re: Using Qtf forgets control font By: mirek on Sun, 07 September 2008 13:35
		Re: Using Qtf forgets control font By: cbpporter on Sun, 07 September 2008 14:08
		Re: Using Qtf forgets control font By: mirek on Sun, 07 September 2008 20:47
		Re: Using Qtf forgets control font By: cbpporter on Tue, 09 September 2008 02:15
		Re: Using Qtf forgets control font By: cbpporter on Tue, 09 September 2008 03:14
		Re: Using Qtf forgets control font By: mirek on Tue, 09 September 2008 08:53
		Re: Using Qtf forgets control font By: cbpporter on Wed, 10 September 2008 06:07
		Re: Using Qtf forgets control font By: cbpporter on Wed, 10 September 2008 08:08
		Re: Using Qtf forgets control font By: mirek on Wed, 10 September 2008 20:46
		Re: Using Qtf forgets control font By: cbpporter on Wed, 10 September 2008 21:27
		Re: Using Qtf forgets control font By: cbpporter on Wed, 10 September 2008 22:02
		Re: Using Qtf forgets control font By: cbpporter on Thu, 11 September 2008 06:56
		Re: Using Qtf forgets control font By: mirek on Fri, 12 September 2008 08:25
		Re: Using Qtf forgets control font By: cbpporter on Fri, 12 September 2008 11:15
		Re: Using Qtf forgets control font By: mirek on Fri, 12 September 2008 17:00
		Re: Using Qtf forgets control font By: cbpporter on Sat, 13 September 2008 19:19

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