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旧 2009-05-06, 03:13 PM   #1
yang686526
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默认 【转帖】how to select entities, starting from oddbdatabase pointer 9

how to select entities, starting from oddbdatabase pointer (
how to select entities, starting from oddbdatabase pointer (current open file)
hello!
i try to select some entities on the screen from a drxsdk_2.04 dll application. i'm a beginner with drx sdk and i do not know how to do that. from my application host i can retrieve current active document ?oddbdatabase pointer.
using old com style from application i can get current document, from it i get active selectionset and using selectonscreen i can select some entities on the screen. brief desprition is below. .
ccomqiptr<iicadapplication> app;
ccomptr< iicaddocument> document;
app->get_activedocument(&document)
ccomptr<iicadselectionset> selectionset;
document->get_activeselectionset( &selectionset );
selectionset->selectonscreen(variant,variant);
i ask how to do but using drx, not com. as i already said i have current document. using it i try:
oddbselectionsetptr pselect = oddbselectionset::select(pdb); //where pdb is my current document.
but nothing seems to happened. more than that: how can i prompt some text on command line host , for example : 搒elect entities?at the moment of selection?
ps: i have no sdk example, only excustobjs project which use extensive odedcommandcontext* pcmdctx like below
....
oddbcommandcontextptr pdbcmdctx(pcmdctx);
oddbuserio* pio = pdbcmdctx->dbuserio();
oddbselectionsetptr psset = pio->select( dd_t("select curve to extend") );
.....
i do not want to use this way for selection (using odedcommandcontext pointer) , but some way derivated from possible document/view(?) members function, like com scenario.
kind regards!
ioan
method used in excustobj sample provides drx portability. the drx will work with all dwgdirect based container applications (assuming they implement required interfaces).
i you want to use intellicad specific classes/methods/interfaces than you'd better ask intellicad developers.
sergey slezkin
i do not want a specific intellicad method, but an usual drx way to select entities on the screen.
as i already said i've tried:
oddbselectionsetptr pselect = oddbselectionset::select(pdb); //where pdb is my current document.
it does not work..
any ideaa?
kind regards!
ioan
quote:
originally posted by bioan
i do not want a specific intellicad method, but an usual drx way to select entities on the screen.
using oddbselectionset::select directly is not "usual way", it is rather advanced way.
what's wrong with oddbuserio::select?
there is an example of direct selection with oddbselectionset::select in examples\excustobjs\drxdebugcmds.cpp,4057 (_selectbylayer_func)
if you want user interaction, then you will need userio anyway.
vladimir
oddbuserio seems to be perfect choice but i got a problem:
as i can see from drxsdk_2.04 excustobjs project, to create an oddbuserio pointer, an odedcommandcontext pointer is necessary as below:
void _exselection_func(odedcommandcontext* pcmdctx)
{
.....
oddbcommandcontextptr pdbcmdctx(pcmdctx);
oddbuserio* pio = pdbcmdctx->dbuserio();
oddbselectionsetptr psset = pio->select( dd_t("select curve to extend") );
...
}
my host application cannot offer me this pointer (odedcommandcontext* pcmdctx) in order to finally construct what i need for selection, the oddbuserio pointer.all i can get from host application is the current document.
does exist some workaround ?
i repeat, i do not have any other oda sdx example to inspire me.
any idea really appreciate!
kind regards!
ioan
what you call 'document' is actually a database. at this level, there is no screen, no user interaction, nothing but a set of objects.
you may ask icad developers how to obtain command context, or, if the code is not executed in the context of a command, how to perform selection.
perhaps you may explain what are you trying to do, more explicitly?
vladimir
thank you for your time wvk!
you put the problem exactly how i want. i would like to ask user, at some moment to select some screen entities, but not in the context of a command!
i will ask again icad host app developers again about this, anyway the picture now is more clear
kind regards!
ioan
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