----boundary-LibPST-iamunique-2133968316_-_-
Content-type: text/plain
Chris Burrows wrote:
> The example I gave the other day is
> typical: I have a table on a form, when I resize the form, I want the table
> to continue to fill the form so that I can see as much of it as possible,
> rather than remaining as a fixed size in the top left hand corner of the
> window. In Delphi, VB, C# etc. this is achieved with just *one* assignment
> statement. How can you do this in BB?
Chris,
you have brought this 'alignment' issue up again, so this time I want to
answer.
As far as I understand BCF ideology, OMS are trying to keep things small
and simple. To achieve that, they recommend composition of components
instead of extension.
In application to your sore table alignment, I would think the following
would be the proper approach to keep the BCF spirit: create a wrapper
view that would be aware of all and any alignment options you can think
of, teach that view to interoperate with its container. This way you get
a solution that has the following advantages:
* your Table view is kept simple, it is kept table-oriented, its
interface and implementation are not filled with visualization stuff
that is not relevant to the Table itself;
* your wrapper view is also kept very simple and small;
* you have performed excellent decomposition of your task;
* you have now got a UNIVERSAL wrapper view that can be used with ANY
view, not only your Table, and potentially even other wrapper views that
provide other visual effects;
* you have used composition instead of type extension ('inheritance'),
thus keeping OMS happy :-) and contributing to the clarity and
uniformity of the environment by keeping its core principles.
I think the recommendation to replace extension with composition is so
very fundamental to keeping simplicity and clarity!
I am a former CS, I only do a little programming now, only in BlackBox,
and only for pleasure - to keep my brain sharp and to get aesthetical
pleasure. I think it is a pleasure to program in BlackBox. All these
discussions sound very religious, even use some of the terminology
(Wojtek Skulski). That is very interesting to me, because I have gone
from CS to church ministry :-)
Anton
--- BlackBox
--- send subject HELP or UNSUBSCRIBE to blackbox{([at]})nowhere.xy
----boundary-LibPST-iamunique-2133968316_-_-
Content-type: application/rtf
Content-transfer-encoding: base64
Content-Disposition: attachment; filename="rtf-body.rtf"
e1xydGYxXGFuc2lcYW5zaWNwZzEyNTFcZnJvbXRleHQgXGRlZmYwe1xmb250dGJsDQp7XGYwXGZz
d2lzcyBBcmlhbDt9DQp7XGYxXGZtb2Rlcm4gQ291cmllciBOZXc7fQ0Ke1xmMlxmbmlsXGZjaGFy
c2V0MiBTeW1ib2w7fQ0Ke1xmM1xmbW9kZXJuXGZjaGFyc2V0MCBDb3VyaWVyIE5ldzt9fQ0Ke1xj
b2xvcnRibFxyZWQwXGdyZWVuMFxibHVlMDtccmVkMFxncmVlbjBcYmx1ZTI1NTt9DQpcdWMxXHBh
cmRccGxhaW5cZGVmdGFiMzYwIFxmMFxmczIwIENocmlzIEJ1cnJvd3Mgd3JvdGU6XHBhcg0KPiBU
aGUgZXhhbXBsZSBJIGdhdmUgdGhlIG90aGVyIGRheSBpc1xwYXINCj4gdHlwaWNhbDogSSBoYXZl
IGEgdGFibGUgb24gYSBmb3JtLCB3aGVuIEkgcmVzaXplIHRoZSBmb3JtLCBJIHdhbnQgdGhlIHRh
YmxlXHBhcg0KPiB0byBjb250aW51ZSB0byBmaWxsIHRoZSBmb3JtIHNvIHRoYXQgSSBjYW4gc2Vl
IGFzIG11Y2ggb2YgaXQgYXMgcG9zc2libGUsXHBhcg0KPiByYXRoZXIgdGhhbiByZW1haW5pbmcg
YXMgYSBmaXhlZCBzaXplIGluIHRoZSB0b3AgbGVmdCBoYW5kIGNvcm5lciBvZiB0aGVccGFyDQo+
IHdpbmRvdy4gSW4gRGVscGhpLCBWQiwgQyMgZXRjLiB0aGlzIGlzIGFjaGlldmVkIHdpdGgganVz
dCAqb25lKiBhc3NpZ25tZW50XHBhcg0KPiBzdGF0ZW1lbnQuIEhvdyBjYW4geW91IGRvIHRoaXMg
aW4gQkI/XHBhcg0KXHBhcg0KQ2hyaXMsXHBhcg0KXHBhcg0KeW91IGhhdmUgYnJvdWdodCB0aGlz
ICdhbGlnbm1lbnQnIGlzc3VlIHVwIGFnYWluLCBzbyB0aGlzIHRpbWUgSSB3YW50IHRvIFxwYXIN
CmFuc3dlci5ccGFyDQpccGFyDQpBcyBmYXIgYXMgSSB1bmRlcnN0YW5kIEJDRiBpZGVvbG9neSwg
T01TIGFyZSB0cnlpbmcgdG8ga2VlcCB0aGluZ3Mgc21hbGwgXHBhcg0KYW5kIHNpbXBsZS4gVG8g
YWNoaWV2ZSB0aGF0LCB0aGV5IHJlY29tbWVuZCBjb21wb3NpdGlvbiBvZiBjb21wb25lbnRzIFxw
YXINCmluc3RlYWQgb2YgZXh0ZW5zaW9uLlxwYXINClxwYXINCkluIGFwcGxpY2F0aW9uIHRvIHlv
dXIgc29yZSB0YWJsZSBhbGlnbm1lbnQsIEkgd291bGQgdGhpbmsgdGhlIGZvbGxvd2luZyBccGFy
DQp3b3VsZCBiZSB0aGUgcHJvcGVyIGFwcHJvYWNoIHRvIGtlZXAgdGhlIEJDRiBzcGlyaXQ6IGNy
ZWF0ZSBhIHdyYXBwZXIgXHBhcg0KdmlldyB0aGF0IHdvdWxkIGJlIGF3YXJlIG9mIGFsbCBhbmQg
YW55IGFsaWdubWVudCBvcHRpb25zIHlvdSBjYW4gdGhpbmsgXHBhcg0Kb2YsIHRlYWNoIHRoYXQg
dmlldyB0byBpbnRlcm9wZXJhdGUgd2l0aCBpdHMgY29udGFpbmVyLiBUaGlzIHdheSB5b3UgZ2V0
IFxwYXINCmEgc29sdXRpb24gdGhhdCBoYXMgdGhlIGZvbGxvd2luZyBhZHZhbnRhZ2VzOlxwYXIN
ClxwYXINCiogeW91ciBUYWJsZSB2aWV3IGlzIGtlcHQgc2ltcGxlLCBpdCBpcyBrZXB0IHRhYmxl
LW9yaWVudGVkLCBpdHMgXHBhcg0KaW50ZXJmYWNlIGFuZCBpbXBsZW1lbnRhdGlvbiBhcmUgbm90
IGZpbGxlZCB3aXRoIHZpc3VhbGl6YXRpb24gc3R1ZmYgXHBhcg0KdGhhdCBpcyBub3QgcmVsZXZh
bnQgdG8gdGhlIFRhYmxlIGl0c2VsZjtccGFyDQpccGFyDQoqIHlvdXIgd3JhcHBlciB2aWV3IGlz
IGFsc28ga2VwdCB2ZXJ5IHNpbXBsZSBhbmQgc21hbGw7XHBhcg0KXHBhcg0KKiB5b3UgaGF2ZSBw
ZXJmb3JtZWQgZXhjZWxsZW50IGRlY29tcG9zaXRpb24gb2YgeW91ciB0YXNrO1xwYXINClxwYXIN
CiogeW91IGhhdmUgbm93IGdvdCBhIFVOSVZFUlNBTCB3cmFwcGVyIHZpZXcgdGhhdCBjYW4gYmUg
dXNlZCB3aXRoIEFOWSBccGFyDQp2aWV3LCBub3Qgb25seSB5b3VyIFRhYmxlLCBhbmQgcG90ZW50
aWFsbHkgZXZlbiBvdGhlciB3cmFwcGVyIHZpZXdzIHRoYXQgXHBhcg0KcHJvdmlkZSBvdGhlciB2
aXN1YWwgZWZmZWN0cztccGFyDQpccGFyDQoqIHlvdSBoYXZlIHVzZWQgY29tcG9zaXRpb24gaW5z
dGVhZCBvZiB0eXBlIGV4dGVuc2lvbiAoJ2luaGVyaXRhbmNlJyksIFxwYXINCnRodXMga2VlcGlu
ZyBPTVMgaGFwcHkgOi0pIGFuZCBjb250cmlidXRpbmcgdG8gdGhlIGNsYXJpdHkgYW5kIFxwYXIN
CnVuaWZvcm1pdHkgb2YgdGhlIGVudmlyb25tZW50IGJ5IGtlZXBpbmcgaXRzIGNvcmUgcHJpbmNp
cGxlcy5ccGFyDQpccGFyDQpJIHRoaW5rIHRoZSByZWNvbW1lbmRhdGlvbiB0byByZXBsYWNlIGV4
dGVuc2lvbiB3aXRoIGNvbXBvc2l0aW9uIGlzIHNvIFxwYXINCnZlcnkgZnVuZGFtZW50YWwgdG8g
a2VlcGluZyBzaW1wbGljaXR5IGFuZCBjbGFyaXR5IVxwYXINClxwYXINCkkgYW0gYSBmb3JtZXIg
Q1MsIEkgb25seSBkbyBhIGxpdHRsZSBwcm9ncmFtbWluZyBub3csIG9ubHkgaW4gQmxhY2tCb3gs
IFxwYXINCmFuZCBvbmx5IGZvciBwbGVhc3VyZSAtIHRvIGtlZXAgbXkgYnJhaW4gc2hhcnAgYW5k
IHRvIGdldCBhZXN0aGV0aWNhbCBccGFyDQpwbGVhc3VyZS4gSSB0aGluayBpdCBpcyBhIHBsZWFz
dXJlIHRvIHByb2dyYW0gaW4gQmxhY2tCb3guIEFsbCB0aGVzZSBccGFyDQpkaXNjdXNzaW9ucyBz
b3VuZCB2ZXJ5IHJlbGlnaW91cywgZXZlbiB1c2Ugc29tZSBvZiB0aGUgdGVybWlub2xvZ3kgXHBh
cg0KKFdvanRlayBTa3Vsc2tpKS4gVGhhdCBpcyB2ZXJ5IGludGVyZXN0aW5nIHRvIG1lLCBiZWNh
dXNlIEkgaGF2ZSBnb25lIFxwYXINCmZyb20gQ1MgdG8gY2h1cmNoIG1pbmlzdHJ5IDotKVxwYXIN
ClxwYXINCkFudG9uXHBhcg0KXHBhcg0KLS0tIEJsYWNrQm94XHBhcg0KLS0tIHNlbmQgc3ViamVj
dCBIRUxQIG9yIFVOU1VCU0NSSUJFIHRvIGJsYWNrYm94QG9iZXJvbi5jaFxwYXINClxwYXINCn0=
----boundary-LibPST-iamunique-2133968316_-_---
Received on Wed May 24 2006 - 11:44:30 UTC