Hi, I`m new in squeak, but not in smalltalk. I have some questions about the environment of squeak that will help me to understand it. - Firstly, I would like to know how the startup process of squeak is, as detailed as possible. - Second, MVC projects are just wrapped from morphic?. Later I will explain why I want to know this. - Third, who is responsible of opening the main window and if it`s possible to open other windows without using wxWidgets or something like that. Is it hardcoded in the vm or elsewhere? Why I`m asking these questions? Because I`m interested in using squeak as an alternative for small commercial projects. I want to know if it`s viable of developing an MVC with at least one look and feel and a little core of widgets. I have a look at BobsUI but it`s build on Morphic. Regards Esteban
Esteban,
I`m new in squeak, but not in smalltalk. I have some questions about the environment of squeak that will help me to understand it.
- Firstly, I would like to know how the startup process of squeak is,
as detailed as possible.
- The VM compiled by a C compiler is loaded onto the memory. - The VM allocates a big chunk of memory and load the content of a Squeak .image file on to the chunk pretty much as it is. - In the loaded image, the pointers may have different offset when it was saved, and the endianness may be different, too. VM adjusts them. - Now, VM look for the initial context and compiled method to dive in and Squeak code start running. - Usually, the initial context is in SmalltalkImage>>snapshot:andQuit:embedded:. After doing a few things, it start processing the "start up list". - The start up list consists of classes that need to do something upon startup. You can inspect StartUp class var of SystemDictionary and #startUp: methods of them (on the class side). - Then the UI process gets started and usual interaction begins.
- Second, MVC projects are just wrapped from morphic?. Later I will
explain why I want to know this.
Yes, I can figure out what you are asking^^;
- Third, who is responsible of opening the main window and if it`s
possible to open other windows without using wxWidgets or something like that. Is it hardcoded in the vm or elsewhere?
It pretty much is.
Why I`m asking these questions? Because I`m interested in using squeak as an alternative for small commercial projects. I want to know if it`s viable of developing an MVC with at least one look and feel and a little core of widgets. I have a look at BobsUI but it`s build on Morphic.
There may be some confusion among os window and os widgets. From what I read, you seems to want to use OS widgets. There are a few attempts to make the emulation of OS widgets work, but none is well maintained.
http://minnow.cc.gatech.edu/squeak/2286
Morphic is in general better to do such look enhancements than MVC though. What is the reason for doing it in MVC rather than Morphic. (I can imagine a few, but want to hear yours).
-- Yoshiki
Thanks for your reply!
On 10/4/06, Yoshiki Ohshima yoshiki@squeakland.org wrote:
Esteban,
I`m new in squeak, but not in smalltalk. I have some questions about the environment of squeak that will help me to understand it.
- Firstly, I would like to know how the startup process of squeak is,
as detailed as possible.
- The VM compiled by a C compiler is loaded onto the memory.
- The VM allocates a big chunk of memory and load the content of a Squeak .image file on to the chunk pretty much as it is.
- In the loaded image, the pointers may have different offset when it was saved, and the endianness may be different, too. VM adjusts them.
- Now, VM look for the initial context and compiled method to dive in and Squeak code start running.
- Usually, the initial context is in SmalltalkImage>>snapshot:andQuit:embedded:. After doing a few things, it start processing the "start up list".
- The start up list consists of classes that need to do something upon startup. You can inspect StartUp class var of SystemDictionary and #startUp: methods of them (on the class side).
Yes, this class is responsible of notifying objects that want to know that the image has opened.
- Then the UI process gets started and usual interaction begins.
Is this hardcoded in the VM? or is SmalltalkImage responsible of the start up process and then delegates the control to this process?
- Second, MVC projects are just wrapped from morphic?. Later I will
explain why I want to know this.
Yes, I can figure out what you are asking^^;
- Third, who is responsible of opening the main window and if it`s
possible to open other windows without using wxWidgets or something like that. Is it hardcoded in the vm or elsewhere?
It pretty much is.
:-(
Why I`m asking these questions? Because I`m interested in using squeak as an alternative for small commercial projects. I want to know if it`s viable of developing an MVC with at least one look and feel and a little core of widgets. I have a look at BobsUI but it`s build on Morphic.
There may be some confusion among os window and os widgets. From what I read, you seems to want to use OS widgets. There are a few attempts to make the emulation of OS widgets work, but none is well maintained.
I think that you misunderstand me. The only thing I want from the OS is that I can open new windows. HostWindowPlugin works?. I want to have my own widgets implemented in smalltalk, but I want them to look and feel like OS ones. Why? Because for normal people is costly to get used to new widgets like Morphic ones.
http://minnow.cc.gatech.edu/squeak/2286
Morphic is in general better to do such look enhancements than MVC though. What is the reason for doing it in MVC rather than Morphic. (I can imagine a few, but want to hear yours).
Because It´s faster, It´s easier for programmers that came from other smalltalk distributions like VisualWorks, Smalltalk/X, Dolphin to use it, it`s simple. Many people discard Squeak for doing some projects because they think it´s UI is not suitable for normal people. I want Squeak to be my best option for this kind of applications too. I want to hear yours! I think that each UI framework has it`s advantages and disadvantages. If I want to develop multimedia application I would choice Morphic, but what about a simple UI with common widgets? I need a simple framework like MVC, but with an improved looking. Regards Esteban
-- Yoshiki
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
Am 05.10.2006 um 15:09 schrieb Esteban Robles Luna:
Is this hardcoded in the VM? or is SmalltalkImage responsible of the start up process and then delegates the control to this process?
The VM does not care. It just resumes executing the frozen context, that is, whichever context called the snapshot primitive.
I think that you misunderstand me. The only thing I want from the OS is that I can open new windows. HostWindowPlugin works?.
Yes, although it has not been ported to X11, yet. Works on Mac and Win.
I want to have my own widgets implemented in smalltalk, but I want them to look and feel like OS ones.
Well, VisualWorks tried, and failed IMHO. *If* you want to get native feel, use native widgets.
Why? Because for normal people is costly to get used to new widgets like Morphic ones.
Hmm, other software (like Firefox) is accepted even with non-native look and feel.
I need a simple framework like MVC, but with an improved looking.
It might be a challenge to make MVC support multiple independently updating windows. But sure, this can be done, looking forward to it :)
- Bert -
I need a simple framework like MVC, but with an improved looking.
Another route might be to use a web browser with a HTML GUI on the desktop. Use Seaside to produce HTML and manage state, scriptaculous for some extra effects.
Hmm, other software (like Firefox) is accepted even with non-native look and feel.
Further down that road you can create an interface just like Mozilla / Firefox by using the Gecko layout engine where widgets are specified in XML (XUL)
http://developer.mozilla.org/en/docs/XULRunner
Callbacks could be done as local HTTP requests, again. Using Gecko would also give you vector graphics (SVG).
-- Matthias
On 10/5/06, Matthias Berth matthias.berth@googlemail.com wrote:
I need a simple framework like MVC, but with an improved looking.
Another route might be to use a web browser with a HTML GUI on the desktop. Use Seaside to produce HTML and manage state, scriptaculous for some extra effects.
Hmm, other software (like Firefox) is accepted even with non-native look and feel.
Further down that road you can create an interface just like Mozilla / Firefox by using the Gecko layout engine where widgets are specified in XML (XUL)
http://developer.mozilla.org/en/docs/XULRunner
Callbacks could be done as local HTTP requests, again. Using Gecko would also give you vector graphics (SVG).
I discard this option, because I would like to build distributed applications. But thanks for your advice. I don´t know about Gecko!.
-- Matthias _______________________________________________ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
On 10/5/06, Bert Freudenberg bert@freudenbergs.de wrote:
Am 05.10.2006 um 15:09 schrieb Esteban Robles Luna:
Is this hardcoded in the VM? or is SmalltalkImage responsible of the start up process and then delegates the control to this process?
The VM does not care. It just resumes executing the frozen context, that is, whichever context called the snapshot primitive.
Ok
I think that you misunderstand me. The only thing I want from the OS is that I can open new windows. HostWindowPlugin works?.
Yes, although it has not been ported to X11, yet. Works on Mac and Win.
Excelent!
I want to have my own widgets implemented in smalltalk, but I want them to look and feel like OS ones.
Well, VisualWorks tried, and failed IMHO. *If* you want to get native feel, use native widgets.
Why? Because for normal people is costly to get used to new widgets like Morphic ones.
Hmm, other software (like Firefox) is accepted even with non-native look and feel.
I need a simple framework like MVC, but with an improved looking.
It might be a challenge to make MVC support multiple independently updating windows. But sure, this can be done, looking forward to it :)
I hope we can do it. Thanks!
- Bert -
Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners
beginners@lists.squeakfoundation.org
-
Bert Freudenberg -
Esteban Robles Luna -
Matthias Berth -
Yoshiki Ohshima