[Gambas-user] Picture/Image with correct aspect ratio (G2)
Matti
math.eber at ...221...
Sat Mar 17 17:44:02 CET 2012
Hi Rolf,
sorry - what I remembered was how I worked with thumbnails. But they have a
fixed size, and so I could use a square PictureBox of the same size.
When I have larger images and/or don't know the dimensions, I use 'stretched'
PictureBoxes and calculate their widht/height, just like you did.
Am 16.03.2012 10:34, schrieb Rolf-Werner Eilert:
> Hi Matti,
>
> You are right, but only if the photo is as large as the PictureBox or
> smaller. If it's larger, the photo's center will be shown, but at its
> original size, i. e. you will see part of the photo only.
>
> After some fiddling, my father and I found a formular based on the size
> of the PictureBox (133 x 133) in my program. The PictureBox is named
> Foto, b means Width:
>
> DIM b, h AS Integer
> DIM xy AS Float
> DIM bild AS NEW Image
>
> bild = Image.Load(ldsv.dateipfadModelle()&/ basisDaten[0])
> b = bild.Width
> h = bild.Height
> IF b> h AND b> 133 THEN
> xy = b / h
> h = h - ((b - 133) / xy)
> b = 133
> ELSE IF h> b AND h> 133 THEN
> xy = h / b
> b = b - ((h - 133) / xy)
> h = 133
> END IF
> Foto.Picture = bild.Picture
> Foto.Width = b
> Foto.Height = h
> Foto.Stretch = TRUE
>
> This way I tried it with 200 x 300 px photos in landscape and portrait,
> everyting running perfectly. What do you think?
>
> Rolf
>
>
> Am 15.03.2012 20:18, schrieb Matti:
>> Hi Rolf,
>>
>> Square PictureBox is correct.
>> Stretched has to be set to false.
>> Then just set Alignment to Center (in code: 3).
>> That's all.
>>
>> Matti
>>
>> Am 15.03.2012 10:14, schrieb Rolf-Werner Eilert:
>>> Hi folks, this is in Gambas2:
>>>
>>> On a form, I have a PictureBox which shall show photos in landscape and
>>> portrait. So I drew a square PictureBox.
>>>
>>> I expected that if the photo has not the same aspect ratio, it will be
>>> shown with bars of the background color, but when I say Stretched =
>>> True, the picture will be shown as fitted into the complete PictureBox.
>>>
>>> Is there any way to avoid this? Or is the only way to achieve an aspect
>>> ratio correct display, changing the PictureBox's Height and Width?
>>>
>>> Thanks for your answers.
>>>
>>> Rolf
>>
>> ------------------------------------------------------------------------------
>> This SF email is sponsosred by:
>> Try Windows Azure free for 90 days Click Here
>> http://p.sf.net/sfu/sfd2d-msazure
>> _______________________________________________
>> Gambas-user mailing list
>> Gambas-user at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/gambas-user
>>
>
>
> ------------------------------------------------------------------------------
> This SF email is sponsosred by:
> Try Windows Azure free for 90 days Click Here
> http://p.sf.net/sfu/sfd2d-msazure
> _______________________________________________
> Gambas-user mailing list
> Gambas-user at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gambas-user
>
More information about the User
mailing list