Help with pen stuff
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Help with pen stuff
 
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In my spare time I decided to rite a simple paint program! I have encountered some problems:
#1 does paint stuff work in the BorderedMorph category? #2 how would you make the program draw where your mouse pointer is? I think you do it like: myPen goto: 200@200. but more like: myPen goto: mouseX@mouseY I hope you understand what I am trying to do. Thanks so much in advance
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Under the age of 15 so don't want to post my name 
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In reply to this post by OrgmiGeek
On 05.06.2012, at 11:46, OrgmiGeek wrote:
> In my spare time I decided to rite a simple paint program! I have encountered > some problems: > #1 does paint stuff work in the BorderedMorph category? With a Pen you paint on a Form (which is an picture object holding pixels). To display a Form in Morphic you can use an ImageMorph. > #2 how would you make the program draw where your mouse pointer is? I think > you do it like: > myPen goto: 200@200. but more like: myPen goto: mouseX@mouseY Your morph can receive mouse events. You need to implement the handlesMouseDown: method to return true. This will send mouse event messages to your morph. It will receive a mouseDown: message when the mouse button is pressed, and a mouseMove: message when the mouse is moved subsequently, and finally a mouseUp: message. The argument to these messages is a MouseEvent. It has a position, but that is in world coordinates. You need to subtract the morph's topLeft coordinate from the event's position. It's really just a handful of lines, but see the attached example for a working version. - Bert - _______________________________________________ Beginners mailing list [hidden email] http://lists.squeakfoundation.org/mailman/listinfo/beginners |
BertsPaintMorph.st (1K)
Re: Help with pen stuff
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Re: Help with pen stuff
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Re: Help with pen stuff
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In reply to this post by Bert Freudenberg
>> In my spare time I decided to rite a simple paint program! I have encountered
>> some problems: >> #1 does paint stuff work in the BorderedMorph category? >With a Pen you paint on a Form (which is an picture object holding pixels). To display a Form in Morphic >you can use an ImageMorph. >> #2 how would you make the program draw where your mouse pointer is? I think >> you do it like: >> myPen goto: 200@200. but more like: myPen goto: mouseX@mouseY >Your morph can receive mouse events. You need to implement the handlesMouseDown: method to return >true. >This will send mouse event messages to your morph. It will receive a mouseDown: message when the >mouse button is pressed, and a mouseMove: message when the mouse is moved subsequently, and >finally a mouseUp: message. >The argument to these messages is a MouseEvent. It has a position, but that is in world coordinates. You >need to subtract the morph's topLeft coordinate from the event's position. I will try this as soon as I have time! >It's really just a handful of lines, but see the attached example for a working version. I just opened it in a text editor :O that is not many lions at all! >- Bert - I just have one more question how do I actually file in some thing. my dad and I spent ages trying to find that out so we just exchanged Images
thanks so much for your help!
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Under the age of 15 so don't want to post my name
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Re: Help with pen stuff
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Re: Help with pen stuff
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On Tue, Jun 5, 2012 at 5:38 PM, Bert Freudenberg <[hidden email]> wrote:
WoW that was easy! thanks! it worked :DÂ
__________________________________________________________________________ Origamigeek _______________________________________________ Beginners mailing list [hidden email] http://lists.squeakfoundation.org/mailman/listinfo/beginners
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Under the age of 15 so don't want to post my name
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