Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Lars]

On Tue, November 8, 2016 3:24 am, Michael Schnell wrote:
> On 08.11.2016 03:12, Lars wrote:
> "FpGUI" used to be an option (one of a selection of Widget Types,
> together with e.g. "GTK2", "CustomDraw", ...). At some point in time the
> "WidgetType" menu in the project options had been replaced by a
> possibility to set the appropriate Macro Value in "additions and
> Overrides".

Doesn't fpgui take a different approach to programming, so if you start a
project in win32/gtk style, you can't easily port it to fpgui due to
enormous differences here and there in the way gui programming is done..

As I'm out of touch with fpGUI (really want to try it, just a matter of
making time), I'm ignorant on this. But it's not like you can just flip a
switch and recompile a existing lazarus app to use fpGUI that was
originally written for win32/gtk/kde style programming?
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Lars]

On Tue, November 8, 2016 4:04 am, Michael Schnell wrote:
> On 08.11.2016 03:12, Lars wrote:
>
>>
>> Does lazarus even know about fpGUI
>>
> Version 1.6 on Windows: even in the GUI:
> Project -> Project Options -> Additions and Overrides -> Set
> "LCLWidgetType" -> Drop Down selection Value "fpgui".
>

I see. Also Graeme's email explained it too. However, how compatible are
these widget sets with each other? Since they are coded with entirely
different styles, you can't just select fpgui and recompile the app,
right? You have to take an entirely different coding approach. So you
weren't trying to imply that lazarus, could be recompiled to use fpgui
based widgets inside the lazarus exe/elf itself? i.e. a lazarus ide, that
is based on fpgui widgets, so it could run on pure X and no gtk/kde
needed. To me that would seem like a huge leap. If possible, almost magic.
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Michael Schnell]

On 08.11.2016 03:12, Lars wrote:


Does lazarus even know about fpGUI

Version 1.6 on Windows: even in the GUI:
Project -> Project Options -> Additions and Overrides -> Set 
"LCLWidgetType" -> Drop Down selection Value "fpgui".


Sadly in  my compiled "trunk" version 1.7 on Linux the <"LCLWidgetType"> 
drop down menu is not shown any more :-(.


Bug or erroneous configuration on my site ?

-Michael

___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] googleapiconv raises ERESTAPI error

[Andreas Frieß]

I think the same problem will appear in Lazarus with the gooleapis 
components (and examples), because they based on the fpc.


... Exception-Class >>ERESTAPI<< 
TTasklist: unsopported array element type

Andreas


Am 06.11.2016 um 16:00 schrieb Michael Van Canneyt:



On Sun, 6 Nov 2016, Andreas Frieß wrote:


Hello,

i will try to use the googleapiconverter from the gooleapi examples 
directory. I got some excepions, so i reduced the problem to a 
generic one.
I use the trunc of FPC and compile the googleapiconv without a 
problem (inside lazarus). If i run it direct from commandline with -A 
-k ig ot the following infos. The stored json file look wellformed 
and ok.



> C:\Data\development\fpctrunk\fpc\packages\googleapi\examples\generator
> >googleapiconv.exe -A -k Exception at 0043DF98: ERESTAPI:
> Unknown class : "¼F ÿ¼F ý¼F »F °│F T┤FTTypeDef   
   ê█E
> TTypeDefä`F ÉF   googlediscoverytopas TRestMethodParam
> ê█E ÿ   ê█E á TRestMethodParams   É".

Any hint 4 me ?


There has been a change in the RTTI, which has not yet been corrected 
in the

restbase unit. This needs to be done still, it is on my TODO list.

Michael.


___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal


___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Michael Schnell]

On 08.11.2016 11:29, Graeme Geldenhuys wrote:

On 2016-11-08 10:00, Michael Schnell wrote:

While this is perfectly possible,

It's not about "is perfectly possible",

I meant "It's perfectly possible that it does not work (yet)" ;-).

-Michael
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Michael Schnell]

On 08.11.2016 03:12, Lars wrote:


Or you were mistaken to think fpGUI was an option in lazarus?
"FpGUI" used to be an option (one of a selection of Widget Types, 
together with e.g. "GTK2", "CustomDraw", ...). At some point in time the 
"WidgetType" menu in the project options had been replaced by a 
possibility to set the appropriate Macro Value in "additions and 
Overrides". Here seemingly selecting one of the **supported** Widget 
Types (aka Interfaces)  does not seem to be that easily possible any 
more. So I can't tell if FpGUI (i.e. the LCL-Version of same) is still 
available.


-Michael
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] New Feature: 'Management Operators'

[Lars]

On Tue, November 8, 2016 1:47 am, Maciej Izak wrote:
> 2016-11-07 22:24 GMT+01:00 African Wild Dog :
>
>
>>
>> I saw on the bug tracker a patch submission by Maciej Izak about the
>> feature "Management Operators".
>>
>> This feature is related to Automatic Reference Counting?
>>
>>
>
> Yes. We have a working ARC objects

Can someone briefly explain what this means for code?

Is this related to garbage collected heap allocated objects and similar,
without using a garbage collector but using reference counting?

Sorry if I am way off base, I just have no idea what it is...
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Lars]

On Tue, November 8, 2016 2:45 am, Graeme Geldenhuys wrote:
> What Fred did with polYDev is create a minimal (read very small) fully
> functional FreeBSD install, that supports desktop development using FPC,
> includes a IDE (ideU a fork of MSEide with tons of custom modifications)

Does ideU support multiple programming languages as an editor? Without
trying it myself, for example, does it include multiple syntax
highlighters? can you write your own syntax highlighter?  Mseide seems
mostly based on fpc and not as many other languages, although I heard that
Martin sometimes does C development in mseide.
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Lars]

On Tue, November 8, 2016 2:56 am, Graeme Geldenhuys wrote:
> Yes, that changed about 9 years ago. :) And no, fpGUI is *not* a non
> visual development environment. fpGUI comes with its own Visual Forms
> Designer, Help Viewer, demo IDE and many more.

Thanks for clarifying.  I have always wanted to try fpGUI, but it's always
the same fear that stops me:  like msegui, the issue is there is no
torry.net for it with years and years of contributed components.  It seems
like a good tool to start a project in, if you don't require some special
component from torry.net or lazarus.  I always end up needing to pull in
some component from the internet at some point, I tend not to write a pure
GUI app that uses no one elses components.

I hate this fear that I have, because it causes me to stick to using
delphi since I know I have an insurance plan available (torry.net) if I
need a component that I don't feel like writing myself, that someone
already else has.
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] picture preview

[Andrew Haines]

On 11/08/2016 01:51 PM, Marc Santhoff wrote:

Hi,

if I want load a bitmap picture for extracting a small preview of it,
what component or library would be best?

My goal is to use pascal only without any external lirbraries if
possible. Second goal is to keep the program small, ideally avoiding to
link lcl controls in.

Bitmap picture may be anything commen, JPEG, PNG, GIF, BMP, etc.

TIA,
Marc



Hi I attached a small program I just wrote that resizes an image and 
saves it to a file. I didn't test it but it compiles. It uses just the 
png reader/writer components but there are several units for different 
image formats.


FPReadPNG, FPWritePNG
FPReadBMP, FPWriteBMP etc.

Regards,

Andrew Haines
program imageresize;
{$mode objfpc}
uses
  Classes, FPimage, FPImgCanv, FPCanvas, FPReadPNG, FPWritePNG;


function ResizeImage(ASrcImage: TFPCustomImage; ANewWidth, ANewHeight: 
Integer): TFPCustomImage;
var
  Canvas: TFPImageCanvas;
begin
  Result := TFPMemoryImage.Create(ANewWidth, ANewHeight);
  Canvas := TFPImageCanvas.Create(Result);

  Canvas.StretchDraw(0,0, ANewWidth, ANewHeight, ASrcImage);
  Canvas.Free;
end;

function ReadImage(AFileName: String) : TFPCustomImage;
var
  Stream: TMemoryStream;
  Reader: TFPReaderPNG;
begin
  Result := nil;
  Stream := TMemoryStream.Create;
  try
Stream.LoadFromFile(AFileName);
Stream.Seek(0, soBeginning);

// I assume png for this example
Reader := TFPReaderPNG.Create;

Result := Reader.ImageRead(Stream, nil);
  finally
Stream.Free;
Reader.Free;
  end;
end;

procedure SaveImage(AImage: TFPCustomImage; AFileName: String);
var
  Writer: TFPWriterPNG;
  F: TFileStream;
begin
  F := TFileStream.Create(AFileName, fmCreate or fmOpenReadWrite);
  try
Writer := TFPWriterPNG.Create;
Writer.ImageWrite(F, AImage);
  finally
Writer.Free;
F.Free;
  end;
end;

var
  OrigImage,
  NewImage: TFPCustomImage;
begin
  if ParamCount < 2 then
  begin
WriteLn('usage:');
WriteLn('   imageresize input.png output.png');
  end;

  OrigImage := ReadImage(ParamStr(1));
  NewImage  := ResizeImage(OrigImage, 50, 50);

  SaveImage(NewImage, ParamStr(2));

  OrigImage.Free;
  NewImage.Free;
end.

___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] picture preview

[leledumbo]

> if I want load a bitmap picture for extracting a small preview of it, 
> what component or library would be best? 

fcl-image (http://wiki.freepascal.org/fcl-image) is the basis of LCL image
processing components and routines, so you can for sure use that. I use it
to resize uploaded pictures in one of my web applications. TFPImageCanvas
(TFPCustomCanvas to be precise) implements CopyRect which you can use for
cropping. The wiki article (and the package directory) has some examples to
start with.



--
View this message in context: 
http://free-pascal-general.1045716.n5.nabble.com/picture-preview-tp5726793p5726794.html
Sent from the Free Pascal - General mailing list archive at Nabble.com.
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

[fpc-pascal] picture preview

[Marc Santhoff]

Hi,

if I want load a bitmap picture for extracting a small preview of it,
what component or library would be best?

My goal is to use pascal only without any external lirbraries if
possible. Second goal is to keep the program small, ideally avoiding to
link lcl controls in.

Bitmap picture may be anything commen, JPEG, PNG, GIF, BMP, etc.

TIA,
Marc


___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[fredvs]

> if you want Lazarus support, it means you need to install large 3rd
> party dependencies and Lazarus itself, which will bloat the OS by
> 500MB-1000MB more hard disk space.

Huh, yes but this only for the main system.

If you want a poly-compiling system (like polYdev) you need to install also
all the dependencies for FreeBSD 32 + Linux 64 + Linux 32.

And for this you will need +- 2.5 gigas.

Fre;D



-
Many thanks ;-)
--
View this message in context: 
http://free-pascal-general.1045716.n5.nabble.com/FreeBSD-distro-with-fpc-as-star-tp5722535p5726792.html
Sent from the Free Pascal - General mailing list archive at Nabble.com.
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Graeme Geldenhuys]

On 2016-11-08 10:00, Michael Schnell wrote:
> While this is perfectly possible,

It's not about "is perfectly possible", it is how LCL functions. The LCL
requires a underlying toolkit, and the big three are Qt, GTK and Win32.
LCL is just wrapper over those toolkits and represents a common API to
the developer (well, it tries too).


> (aka interface). Of course CustomDraw and LCL-FpGUI might not be 
> complete enough for a super complex application such as the Lazrus IDE.

Correct, both LCL-CustomDrawn and LCL-fpGUI widgetsets are still
incomplete - CustomDrawn more so that LCL-fpGUI (from my last tests
about 2 weeks ago). That doesn't mean they can't handle large scale
applications - they can, but those LCL widgetset interfaces need to be
completed first. Just like LCL-GTK3 is not complete yet.

Anyway, Fred's idea of a Free Pascal oriented FreeBSD distro is a
brilliant idea. It allows you to setup a fully functional development
environment in a matter of minutes, that would otherwise have taken hours.


Regards,
  Graeme

-- 
fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://fpgui.sourceforge.net/

My public PGP key:  http://tinyurl.com/graeme-pgp
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Michael Schnell]

On 07.11.2016 22:57, fredvs wrote:


Maybe I did not understand well.

AFAIK, for Unix os, Lazarus and LCL-widget-set need a "big native"
widget-set, like GTK, KDE or Qt.
While this is perfectly possible, IMHO it's not the way it should stay. 
The LCL is intended to provide compatible support for any Widget Type 
(aka interface). Of course CustomDraw and LCL-FpGUI might not be 
complete enough for a super complex application such as the Lazrus IDE.



In theory it is possible to build Lazarus with fpGUI-pure-X-widget-set but I
was never able to do it work.

I see.

Also IMO (maybe I am wrong too for this), even for CustomDraw, a "big
native·widget-set" is needed.
I don't see what you mean. AFAIK, the idea of "CustomDraw" Widget Type 
is to require only a minimal set of basic widgets (I did not get to 
research which ones exactly) to be provided by the underlying Widget Set.


(In fact I am still (on and off) working on a fully functional Widget 
Type that requires no Widget Set at all. Of course here you will not see 
anything :-) . )


-Michael
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] New Feature: "Management Operators"

[denisgolovan]

  08.11.2016, 11:48, "Maciej Izak" : anyway probably I have no motivation anymore to continuing my work. That's unfortunate for the community, IMHO.Personally, I appreciate your idea of management operators. -- Regards,Denis Golovan 
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Graeme Geldenhuys]

On 2016-11-08 02:12, Lars wrote:
> Does lazarus even know about fpGUI

Yes, there is a LCL-fpGUI widgetset. It is still in alpha state, but all
Standard component palette widgets (except TLabel) is supported, quite a
few others too, as is all the dialogs and some WinAPI calls (eg:
ShowMessage). It seems a permanent developer though to complete it. I
contribute every now and then, and make sure it always compiles with the
latest stable fpGUI. But my priority is improving and maintaining the
"pure" fpGUI Toolkit, not the LCL-fpGUI wigetset of Lazarus.


> I always remembered fpgui as a non visual development that was separate
> and never integrated in any way with lazarus widget set. Did this change?

Yes, that changed about 9 years ago. :) And no, fpGUI is *not* a non
visual development environment. fpGUI comes with its own Visual Forms
Designer, Help Viewer, demo IDE and many more. Part of fpGUI's design
goals is to allow the developer flexibility, by not forcing them to use
one specific IDE. With fpGUI you can use any IDE (yes, that means
Lazarus, MSEide, Delphi, Geany, Eclipse etc) or any programmer editor
(EditPad Pro, VIM, etc). You can then integrate context sensitive help
and visual form designing via using those IDEs or editors "External
Tools" functionality.

for example:
  http://fpgui.sourceforge.net/docview_ide_integration.shtml


Here are screenshots of fpGUI's help viewer, visual form designer (a bit
old now) and demo IDE.

  http://fpgui.sourceforge.net/screenshots_apps.shtml


Regards,
  Graeme

-- 
fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://fpgui.sourceforge.net/

My public PGP key:  http://tinyurl.com/graeme-pgp
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] FreeBSD distro with fpc as star.

[Graeme Geldenhuys]

On 2016-11-07 09:48, Michael Schnell wrote:
> I understand that you suggest you can't build the Lazarus IDE with 
> defining  fpGUI or CustomDrwan  instead of Qt or Gnome (or Windows or 
> Cocos).

What Fred did with polYDev is create a minimal (read very small) fully
functional FreeBSD install, that supports desktop development using FPC,
includes a IDE (ideU a fork of MSEide with tons of custom modifications)
for MSEgui and fpGUI development, cross-compilation out of the box for
Linux32, Linux64, Win32, FreeBSD32 and FreeBSD64, a functional web
browser, video player and GUI desktop environment. All in a small 350MB
ISO. That is an impressive feat.

If you want Lazarus support, it means you need to install large 3rd
party dependencies and Lazarus itself, which will bloat the OS by
500MB-1000MB more hard disk space. Fred didn't want that.
Cross-compilation is also much easier with ideU than it is with Lazarus IDE.

Regards,
  Graeme

-- 
fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://fpgui.sourceforge.net/

My public PGP key:  http://tinyurl.com/graeme-pgp
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] New Feature: "Management Operators"

[Maciej Izak]

2016-11-07 22:24 GMT+01:00 African Wild Dog :

>
> I saw on the bug tracker a patch submission by Maciej Izak about the
> feature "Management Operators".
>
> This feature is related to Automatic Reference Counting?
>

Yes. We have a working ARC objects (not official yet, very raw form without
"compiler magic", but fully functionally/compilable without any
regressions) with http://newpascal.org latest release:

https://github.com/maciej-izak/PascalSmartPointers/blob/
master/examples/SmartObj01.pas
https://github.com/maciej-izak/PascalSmartPointers/blob/
master/sources/SmartObj.pas

anyway probably I have no motivation anymore to continuing my work.

-- 
Best regards,
Maciej Izak
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal