<div dir="ltr"><div><div>I have already implemented the canvas on which we draw, the possibility of drawing with the brush but with only a single color and a single size, a capacity to erase what we have already drawn with the "Clear" command on the custom menu code. <br>So, i'd like to add the possibility of changing the color and the size of the brush presenting the choices of color and brush size.<br><br></div>The differents methods are:<br><br></div><div>"Methods"<br></div><div>extent: aPoint<br> | newForm |<br> super extent: aPoint.<br> newForm := Form extent: self extent depth: 16.<br> newForm fillColor: Color veryLightGray.<br> form ifNotNil: [form displayOn: newForm].<br> form := newForm.<br> <br> <br>initialize<br> super initialize.<br> self extent: 500@350.<br> <br>drawOn: aCanvas<br> aCanvas image: form at: bounds origin.<br> <br>handlesMouseDown: evt<br> ^ true <br> <br>mouseDown: evt<br> brush := Pen newOnForm: form.<br> brush roundNib: 3.<br> brush color: Color red.<br> lastMouse := evt cursorPoint - bounds origin.<br> brush drawFrom: lastMouse to: lastMouse.<br> self invalidRect:<br> ((lastMouse - brush sourceForm extent corner:<br> lastMouse + brush sourceForm extent)<br> translateBy: bounds origin).<br> <br> <br>mouseMove: evt<br> | p |<br> p := evt cursorPoint - bounds origin.<br> p = lastMouse ifTrue: [^ self].<br> brush drawFrom: lastMouse to: p.<br> self invalidRect: ((<br> ((lastMouse min: p) - brush sourceForm extent) corner:<br> ((lastMouse max: p) + brush sourceForm extent))<br> translateBy: bounds origin).<br> lastMouse := p.<br> <br> <br>addCustomMenuItems: aCustomMenu hand: aHandMorph<br> super addCustomMenuItems: aCustomMenu hand: aHandMorph.<br> aCustomMenu add: 'clear' action: #clear.<br> <br> <br>clear<br> form fillColor: Color veryLightGray.<br> self changed.<br><br></div>"Class PaintMorph"<br><div>Morph subclass: #PaintMorph<br> instanceVariableNames: 'form brush lastMouse'<br> classVariableNames: ''<br> poolDictionaries: ''<br> category: 'Morphic-Fun'<br><br></div><div>"Workspace"<br>PaintMorph new openInWorld.<br><br><div><br></div><div>Thank you in advance.<br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">2016-08-20 18:47 GMT+02:00 Bert Freudenberg <span dir="ltr"><<a href="mailto:bert@freudenbergs.de" target="_blank">bert@freudenbergs.de</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Sure. Just ask some specific questions - e.g. what you tried, what worked, what didn't etc.<div><br></div><div>- Bert -<br><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">On Sat, Aug 20, 2016 at 10:59 AM, roger mpouma <span dir="ltr"><<a href="mailto:rmpouma@gmail.com" target="_blank">rmpouma@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">Hello, <br>I need help for a drawing project on Squeak. I'd like implement a canvas on which we draw with the possibility of drawing with brush changing the color and size of the brush. Is it possibile to have help ?<br><br>Thank you in advance.
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