Re: [Lazarus] TBitmapCanvas public
Coppola Ing. Salvatore wrote: Mattias Gärtner wrote: Zitat von Paul Ishenin webpi...@mail.ru: Coppola Ing. Salvatore пишет: Coppola Ing. Salvatore wrote: Hi, can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? I assume is NOT! No, assume silence as nobody remember why it is so and nobody have time to look :( Because there was never a reason to make it public. Private things can be changed easier. Why should it be made public? There are some Printer Preview such as PagePrinter based on Windows TMetafile and TMetafileCanvas. Replacing TMetafile with TBitmap and TMetafileCanvas with TBitmapCanvas with some little change they can works under Linux and other OS to. I do understand that a TMetafile needs a TMetafileCanvas and that it is therefore declared, however I don't see why a TBitmapCanvas is needed public when you have TBitmap. Marc ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TBitmapCanvas public
2008/12/12 Marc Weustink m...@dommelstein.net Coppola Ing. Salvatore wrote: Mattias Gärtner wrote: Zitat von Paul Ishenin webpi...@mail.ru: Coppola Ing. Salvatore пишет: Coppola Ing. Salvatore wrote: Hi, can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? I assume is NOT! No, assume silence as nobody remember why it is so and nobody have time to look :( Because there was never a reason to make it public. Private things can be changed easier. Why should it be made public? There are some Printer Preview such as PagePrinter based on Windows TMetafile and TMetafileCanvas. Replacing TMetafile with TBitmap and TMetafileCanvas with TBitmapCanvas with some little change they can works under Linux and other OS to. I do understand that a TMetafile needs a TMetafileCanvas and that it is therefore declared, however I don't see why a TBitmapCanvas is needed public when you have TBitmap. OK I will try to understand better TBitmap Thanks Salvatore Marc ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TBitmapCanvas public
Coppola Ing. Salvatore wrote: Hi, can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? I assume is NOT! I'm trying to replace the TMetafile TMetafileCanvas in some GraphPrinters units. Thanks Salvatore ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TBitmapCanvas public
Coppola Ing. Salvatore пишет: Coppola Ing. Salvatore wrote: Hi, can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? I assume is NOT! No, assume silence as nobody remember why it is so and nobody have time to look :( Best regards, Paul Ishenin. ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TBitmapCanvas public
I don't know anything about that class, but if you describe better what you are trying to do I may suggest an alternative. -- Felipe Monteiro de Carvalho ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TBitmapCanvas public
Zitat von Paul Ishenin [EMAIL PROTECTED]: Coppola Ing. Salvatore пиÑеÑ: Coppola Ing. Salvatore wrote: Hi, can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? I assume is NOT! No, assume silence as nobody remember why it is so and nobody have time to look :( Because there was never a reason to make it public. Private things can be changed easier. Why should it be made public? Mattias ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TBitmapCanvas public
Mattias Gärtner wrote: Zitat von Paul Ishenin [EMAIL PROTECTED]: Coppola Ing. Salvatore пишет: Coppola Ing. Salvatore wrote: Hi, can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? I assume is NOT! No, assume silence as nobody remember why it is so and nobody have time to look :( Because there was never a reason to make it public. Private things can be changed easier. Why should it be made public? There are some Printer Preview such as PagePrinter based on Windows TMetafile and TMetafileCanvas. Replacing TMetafile with TBitmap and TMetafileCanvas with TBitmapCanvas with some little change they can works under Linux and other OS to. thanks all Salvatore Mattias ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TBitmapCanvas public
Zitat von Coppola Ing. Salvatore [EMAIL PROTECTED]: [...] can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? [...] There are some Printer Preview such as PagePrinter based on Windows TMetafile and TMetafileCanvas. Replacing TMetafile with TBitmap and TMetafileCanvas with TBitmapCanvas with some little change they can works under Linux and other OS to. What TMetafile do you mean? There is none in the LCL. Mattias ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TBitmapCanvas public
Mattias Gärtner wrote: Zitat von Coppola Ing. Salvatore [EMAIL PROTECTED]: [...] can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? [...] There are some Printer Preview such as PagePrinter based on Windows TMetafile and TMetafileCanvas. Replacing TMetafile with TBitmap and TMetafileCanvas with TBitmapCanvas with some little change they can works under Linux and other OS to. What TMetafile do you mean? There is none in the LCL. Yes I know, for instance there is the Luís Rodrigues TMetafile (mymetafilepkg.lpk) in the CCR that wrap the Windows EnhMetafile API (so Windows specific) and some extra lazarus packages like PagePrinter uses Metafiles. Replacing Metafile with Bitmap can remove this MS Windows API dependences. To do this, TBitmapCanvas, should be visible in PagePrinter units by mean Graphics unit. Salvatore Mattias ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TBitmapCanvas public
Paul Ishenin schrieb: can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? I assume is NOT! No, assume silence as nobody remember why it is so and nobody have time to look :( IMO there exist reasons why the Canvas should be available only on demand, controlled inside the component. DoDi ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] TBitmapCanvas public
Hi, can the TBitmapCanvas be declared public (I mean before implementation) in the unit Graphics? I'm trying to replace the TMetafile TMetafileCanvas in some GraphPrinters units. Thanks Salvatore ___ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
