author | Jan Vrany <jan.vrany@fit.cvut.cz> |
Thu, 01 Aug 2019 18:43:54 +0100 | |
changeset 87 | d1313f80a9a7 |
parent 86 | e434bd07e403 |
child 88 | 9d51db2ba641 |
permissions | -rw-r--r-- |
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"{ Package: 'stx:goodies/libcairo' }" |
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"{ NameSpace: Cairo }" |
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ExternalAddress subclass:#CObject |
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instanceVariableNames:'' |
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classVariableNames:'Lobby' |
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poolDictionaries:'Cairo::Status' |
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category:'Cairo-Objects' |
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! |
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!CObject class methodsFor:'initialization'! |
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initialize |
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"Invoked at system start or when the class is dynamically loaded." |
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"/ please change as required (and remove this comment) |
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Lobby := Registry new |
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"Modified: / 09-01-2015 / 11:22:42 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! ! |
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!CObject class methodsFor:'instance creation'! |
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fromExternalAddress: anExternalAddress |
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^ self new fromExternalAddress: anExternalAddress |
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"Created: / 24-12-2014 / 22:18:45 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified: / 25-12-2014 / 10:33:39 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! ! |
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!CObject methodsFor:'accessing'! |
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referenceCount |
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"Return value or reference counter" |
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^ self subclassResponsibility |
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"Created: / 09-09-2008 / 20:33:48 / Jan Vrany <vranyj1@fel.cvut.cz>" |
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"Modified: / 28-12-2014 / 22:09:54 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! |
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status |
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"Checks whether an error has previously occurred for this object. |
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See Cairo::Status pool for possible values." |
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^ self subclassResponsibility |
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"Created: / 23-02-2016 / 10:43:55 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! ! |
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!CObject methodsFor:'finalization'! |
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executor |
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^self class basicNew |
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setAddress: self address; |
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yourself |
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"Created: / 10-09-2008 / 18:57:28 / Jan Vrany <vranyj1@fel.cvut.cz>" |
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"Modified: / 25-12-2014 / 10:36:49 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! |
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finalize |
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Logger debug: '%1@%2 instance finalized' with: self address with: self referenceCount. |
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self destroy |
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"Created: / 09-09-2008 / 20:30:22 / Jan Vrany <vranyj1@fel.cvut.cz>" |
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"Modified: / 10-09-2008 / 18:45:23 / Jan Vrany <vranyj1@fel.cvut.cz>" |
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"Modified: / 28-12-2014 / 21:39:01 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! ! |
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!CObject methodsFor:'initialization & release'! |
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initialize |
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Logger debug: '%1@%2 instance created' with: self with: self referenceCount. |
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self registerForFinalization. |
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status := self status. |
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CError raiseWith: status errorString: 'Failed to create ', self class name |
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]. |
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"Created: / 23-02-2016 / 10:54:12 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified: / 17-07-2018 / 22:09:08 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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release |
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Logger debug: '%1@%2 instance released explicitly' with: self with: self referenceCount. |
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self unregisterForFinalization. |
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^self destroy |
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"Created: / 25-12-2014 / 10:34:30 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified: / 17-07-2018 / 22:09:03 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! ! |
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!CObject methodsFor:'private'! |
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destroy |
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"Tell Cairo library to destroy the corresponding C object. |
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Remember that object is physically destroyed only if internal |
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refcounter goes to zero. However, after calling destroy, |
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this instance should be treated as invalid." |
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^ self subclassResponsibility |
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"Created: / 28-12-2014 / 21:41:59 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! |
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reference |
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"Increases the reference count on the receiver by one. This prevents the |
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receiver from being destroyed until a matching call to #destroy is made. |
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This method must be called whenever Cairo documentation says so, |
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check comment on return value for methods returning a Cairo object" |
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^ self subclassResponsibility |
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"Created: / 05-03-2016 / 10:31:17 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! |
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statusCheck |
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<resource: #skipInDebuggersWalkBack> |
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| status | |
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status := self status. |
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status ~~ CAIRO_STATUS_SUCCESS ifTrue:[ |
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CError raiseWith: status errorString: 'Operation failed'. |
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]. |
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"Created: / 21-02-2016 / 15:11:55 / jv" |
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"Modified: / 23-02-2016 / 16:56:53 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! ! |
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!CObject class methodsFor:'documentation'! |
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version |
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^'$Id$' |
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! |
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version_HG |
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^ '$Changeset: <not expanded> $' |
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- DLL path is set automatically.
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
6
diff
changeset
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147 |
! ! |
25
643d03d21ddf
Fixes to make it working under recent Smalltalk/X
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
23
diff
changeset
|
148 |
|
40
28dfc583beb5
#displayString: in CairoGraphicsContext revamped
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
36
diff
changeset
|
149 |
|
28dfc583beb5
#displayString: in CairoGraphicsContext revamped
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
36
diff
changeset
|
150 |
CObject initialize! |