On Thursday 16 December 2010 18:46:46 wally wrote:
>
> On Thursday 16 December 2010 18:03:21 Fabien Bodard wrote:
> > if you want us to help you ... please be more explicit on what you want to
> do !
> >
> > first why do you want to resize the drawing area ????(for scrolling ?)
> >
> > are you sure you have understand all the capabilities of a drawing
> > area ? do you know the _draw event ?
> >
> >
> > waht i've understand is :
> >
> > you want like for an array draw on an image... resizing it with
> > preserve of the last draw, and add a new draw.
> >
> > if it's that ..; i think there is many things you have not understand
> > ... tell me
> >
> >
>
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>
> Fabian,
>
> i just want to do something like an ECG. Drawing a graph from continuously
> received data from SerialPort. Exactly i read data from the ADC of an
Arduino
> uC via the Serialport and want to draw this graph. Behind the Arduino ADC
> is a HPLC Detector and to take a spectrogram may last up to an hour.
> I store the data during receive to file for further external math
processing.
> But i need a visual control whats going on.
> Using an Image to paint and resize as needed works nice.
> But the DrawingArea do something like copy stuff to new (via resized) area
> instead of just increase width. Maybe i need to repaint always or to buffer
> the recently drawn stuff before resizing.
>
> My last attachments contains a picture file with 4 circles. 3 of thes
circles
> are created by simply resizing the drawingArea. see attached simple
> short code please.
>
> I do not know whats going on internally and i do not know where to find
> more information and further reading on it.
>
> > if it's that ..; i think there is many things you have not understand
> > ... tell me
>
> agree, thats the reason i post here
>
> > are you sure you have understand all the capabilities of a drawing
> > area ? do you know the _draw event ?
>
> where did you find your knowledge on this. If i need to read all the qt4 and
> GTK stuff i might programm directly in C/C++. I have choosen Gambas for
rapid
> apps devel.
>
> i try to attach a xcapture,of the DrawingArea behavior, It should explain
> whats my problem. If it's not allowed to attach a 1MB file i may send to
> your email.
>
> (2nd trial: message body too big, i send again without attachment)
>
> cheers wally
>
>
>
>
>
>
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> Lotusphere 2011
> Register now for Lotusphere 2011 and learn how
> to connect the dots, take your collaborative environment
> to the next level, and enter the era of Social Business.
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> Gambas-user@lists.sourceforge.net
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>
Fabian,
i wrote:
> My last attachments contains a picture file with 4 circles. 3 of thes
> circles are created by simply resizing the drawingArea. see attached
> simple short code please.
this occirs in GB3 DrawingArea only - GB2 behaves as expected.
try this code in GB2 and GB3 :
PUBLIC SUB Button1_Click()
' DrawingArea 100, 80 - - > 200, 160, .cache=true
Draw.Begin(DrawingArea1)
Draw.Circle(50, 40, 30)
Draw.End
DrawingArea1.Resize(200, 160)
END
wally
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to connect the dots, take your collaborative environment
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