Thanks ;) In deed - I found it out yesterday evening, but couldnt try (I just thought of the whole structure ;) ). Once again: thanks.
2008/11/24 Michael van der Gulik <[EMAIL PROTECTED]> > > > On Tue, Nov 25, 2008 at 5:25 AM, Filip Malczak <[EMAIL PROTECTED]> wrote: > >> 2008/11/23 Filip Malczak <[EMAIL PROTECTED]> >> >> Hi, Im Filip, and Im new at squeak. Ive read 'Squeak by example', and now >>> I try to make my first program. Ive already written in Pascal and a bit >>> (really small bit) of C. Im from Poland, so my english can by not realy >>> good. >>> >>> Now time for my problem: >>> I wanna write a program to write notes on stave (for music). Later Im >>> gonna add translating notes into tabulatures for guitar, and later - for >>> flute. But I begin with just notes. >>> I started from creating object 'Pieciolinia' which is stave (in polish). >>> Then I found out I need some tool to change metrum (Im not sure if its the >>> same in english and polish, its speed of song, written on begining of stave, >>> just after treble clef). So I made class 'TempoButton' which is expected to >>> contain 3 smaller buttons: gora, dol & strzalka. gora is top number of >>> metrum, dol - bottom number and strzalka is button to show a list of usual >>> metrums (you click it and you have a list). gora and dol should open >>> FillInTheBlank and change itself captions to what is written by user, and >>> strzalka should open a PopUpMenu with list of some metrums. >>> Then I created class 'SkladowyButton' which is my version of Basic Button >>> (I wasnt able to find out how to handle with it, so I tried to create new >>> one. And I could make up my own outlook for button). >>> Ive written some methods, but when I try to execute (do it with ctrl+d): >>> >>> but:=TempoButton new. >>> but drawOn: World. >>> >>> I have debugger as on zrzut1.jpg (I send it). >>> >> > Hi Filip. > > You're calling >>bounds: on a Rectangle, which it doesn't understand. > > Open up a Browser and find the "Rectangle" class. This will show all the > method selectors that Rectangle understands. > > If you bring up a halo for any morph on the screen (middle-click, > right-click alt-click or whatever depending on platform), select "Debug" and > then "inspect morph", then type in "self bounds" in the text space at the > bottom of the inspector window and press "alt-i", you'll see that calling > >>bounds on any Morph instance returns a Rectangle. > > So, in your code, you can simply do: > > rec := aMorph bounds. > > Or even more simply, remove the "rec" instance variable and do: > > aCanvas fillRectangle: (self bounds) color: (self color). > > I like using parenthesis to make the arguments stand out more. You don't > need them if you don't want them. > > Note also that Rectangle is an immutable class. Its methods return copies > of itself. > > Gulik. > > > -- > http://people.squeakfoundation.org/person/mikevdg > http://gulik.pbwiki.com/ > > _______________________________________________ > Beginners mailing list > Beginners@lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners > > -- Pozdrawiam: Filip GG: 2486889 mail: [EMAIL PROTECTED]
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