Re: [Lazarus] Run Parameters Dialog
On Wed, 28 Sep 2016 14:19:02 -0600 Lars via Lazarus wrote: > On Mon, September 26, 2016 11:55 pm, Juha Manninen via Lazarus wrote: > > On Tue, Sep 27, 2016 at 8:07 AM, Lars via Lazarus > > wrote: > > > >> The designer of Lazarus didn't necessarily need this feature... > >> > > > > Mattias is the designer of Lazarus. :) > > I thought there were more than one designer and it went through several > phases of different people coming and going, hence the name Lazarus which > was revived from the dead, and instead of just one Jesus like person being > revived it was multiple people which makes it Lazaruses rather than > Lazarus Yes. You asked about "The designer of Lazarus" and "this feature". I added the IDE macros in general and to the run parameters in particular, so Juha took the chance to answer in a similar manner. Context sensitive. Mattias -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Can't add new form to Lazarus App
On Wed, 28 Sep 2016 16:49:15 -0500 "Terry A. Haimann via Lazarus" wrote: > On an old Lazarus app (Linux) today I tried to add a form and got the Do you mean add a new empty form or add an existing form? > following: > > http://www.haimann.us/Images/Test.png I recommend to adapt the $mode and $H directive in the main source (usually projectname.lpr). > After selecting this option, the new form appears messed up. What means messed up? It's an empty form, isn't it? > At the > botton of the unit.pas file the following is displayed: > > initialization > {$I unit1.lrs} > > Even after I save the unit under another name. After compilation when > the form is displayed via a show.modal, the form is blank. > Is there someway to repair this app How do you create the form? Mattias -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] TLazIntfImage.Assign ?
On Wed, Sep 28, 2016 at 8:39 AM, LacaK via Lazarus wrote: > Why we set Desc.Width and Height to 0 and later we do not use "Desc" , but > "Src.DataDescription" ? Yes, now the Desc is unused and DataDescription is assigned as is. What could be the "side effects" mentioned in comments? Is there any reason to set Width and Height to 0? I don't know the graph related code well but I can remove the unused part after getting confirmation from others. Juha -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] TLazIntfImage.Assign ?
On 29.09.2016 10:01, Juha Manninen via Lazarus wrote: On Wed, Sep 28, 2016 at 8:39 AM, LacaK via Lazarus wrote: Why we set Desc.Width and Height to 0 and later we do not use "Desc" , but "Src.DataDescription" ? Yes, now the Desc is unused and DataDescription is assigned as is. What could be the "side effects" mentioned in comments? Is there any reason to set Width and Height to 0? I don't know the graph related code well but I can remove the unused part after getting confirmation from others. It looks like a left-over to me. It happens regularly also to myself during refactoring. IMO it can be removed - obviously there are not any side effects any more. Ondrej -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] TLazIntfImage.Assign ?
On Thu, Sep 29, 2016 at 11:10 AM, Ondrej Pokorny via Lazarus wrote: > It looks like a left-over to me. It happens regularly also to myself during > refactoring. IMO it can be removed - obviously there are not any side > effects any more. Ok, I will remove it ... Juha -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] TLazIntfImage.Assign ?
IMO it can be removed - obviously there are not any side effects any more. Ok, I will remove it ... Thanks ;-) -Laco -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] Jpeg Exif reader was: TImage shows loaded image rotated by 90?
Attached improved code. (as far as there is a lot of Exif tags, not all are parsed and placed in FExif record, but all are in FIFD array) -Laco. I have created small Exif reader for my own needs. I have looked also in FCL TFPReaderJpeg (which uses pasjpeg) if there is no support, but I do not see. If there would be interest for extending functionality of this reader to support reading of Exif information I can prepare patch. Here is my simple implementation if somebody is interested: unit JpegExif; {$IFDEF FPC} {$mode objfpc} {$ENDIF} {$H+} interface uses Classes, SysUtils; type { TJpegExifReader } TJpegExifReader = class private type TIFDEntry = record TagNo: Word; DataType: Word; Count: DWord; Value: DWord; // This tag records the offset from the start of the TIFF header to the position where the value itself is recorded. // In cases where the value fits in 4 bytes, the value itself is recorded. If the value is smaller than 4 bytes, the value is stored in the 4-byte area starting from the left, i.e., from the lower end end; TExifData = record Make, Model, Software, DateTime, Artist: string; Orientation: smallint; XResolution, YResolution: double; ResolutionUnit: smallint; ExposureTime: double; FNumber: double; ColorSpace: Word; ImageUniqueID: string; end; var FBA: Word; function Swap(w: Word): Word; overload; function Swap(dw: DWord): DWord; overload; public FIFD: array of TIFDEntry; FExif: TExifData; public constructor Create(const FileName: string); overload; constructor Create(Stream: TFileStream); overload; function Orientation: smallint; function XResolution: double; function YResolution: double; function ResolutionUnit: string; function DateTime: TDateTime; end; implementation { TJpegExifReader } function TJpegExifReader.Swap(w: Word): Word; begin if FBA = $4D4D then // Motorola align: first byte in data is highest byte (big endian) Result := BEtoN(w) else // Intel align: first byte in data is lowest byte (little endian) Result := LEtoN(w); end; function TJpegExifReader.Swap(dw: DWord): DWord; begin if FBA = $4D4D then Result := BEtoN(dw) else Result := LEtoN(dw); end; constructor TJpegExifReader.Create(const FileName: string); var Stream: TFileStream; begin Stream := TFileStream.Create(FileName, fmOpenRead+fmShareDenyWrite); try Create(Stream); finally Stream.Free; end; end; constructor TJpegExifReader.Create(Stream: TFileStream); type TRATIONAL=record numerator: dword; denominator: dword; end; var b: Byte; w, Marker, Size: Word; dw: DWord; i,c: Integer; S: AnsiString; R: TRATIONAL; D: Double; function ReadIFD(Offset: DWord): integer; var i,j: integer; begin Stream.Position := 12 + Offset; Stream.Read(w, SizeOf(w)); // No of IFD entries Dec(Size, 2); Result := Swap(w); j := Length(FIFD); SetLength(FIFD, j+Result); // Read IFD entries for i:=j to j+Result-1 do begin Stream.Read(FIFD[i], SizeOf(TIFDEntry)); Dec(Size, SizeOf(TIFDEntry)); FIFD[i].TagNo:= Swap(FIFD[i].TagNo); FIFD[i].DataType := Swap(FIFD[i].DataType); FIFD[i].Count:= Swap(FIFD[i].Count); end; Stream.Read(dw, SizeOf(dw)); // Offset to next IFD (0=last) end; begin inherited Create; Stream.Position := 0; Stream.Read(w,SizeOf(w)); if w <> NtoLE($D8FF) then Exit; // 0-1: Jpeg SOI (Start of image: FFD8) Stream.Read(Marker, SizeOf(w)); // 2-3: Application marker Stream.Read(Size, SizeOf(Size)); // 4-5: Size of APP1 data area (high byte first) Size := BEtoN(Size); Dec(Size, 2); Stream.Read(dw, SizeOf(dw)); // 6-9: 'Exif' of 'JFIF' Dec(Size, 4); // APP0 (Application marker: FFE0) and 'JFIF' if (Marker = NtoLE($E0FF)) and (dw = NtoLE($4649464A)) then begin Stream.Read(b, 1); // 10: 0 Stream.Read(w, SizeOf(w)); // 11-12: JFIF version Stream.Read(b, 1); // 13: Density units (1-in, 2-px) FExif.ResolutionUnit := b+1; Stream.Read(w, SizeOf(w)); // 14-15: XDensity FExif.XResolution := BEtoN(w); Stream.Read(w, SizeOf(w)); // 16-17: YDensity FExif.YResolution := BEtoN(w); end // APP1 (Application marker: FFE1) and 'Exif' else if (Marker = NtoLE($E1FF)) and (dw = NtoLE($66697845)) then begin Stream.Read(w, SizeOf(w)); if w <> NtoLE($) then Exit;// 10-11: Dec(Size, 2); // TIFF header Stream.Read(FBA, SizeOf(FBA)); // 12-13: byte order if (FBA<>$4949) and (FBA<>$4D4D) then Exit; // 4949=Intel, 4D4D=Motorola Strea
Re: [Lazarus] Can't add new form to Lazarus App
On Thu, 2016-09-29 at 09:57 +0200, Mattias Gaertner via Lazarus wrote: > On Wed, 28 Sep 2016 16:49:15 -0500 > "Terry A. Haimann via Lazarus" wrote: > > > On an old Lazarus app (Linux) today I tried to add a form and got the > > Do you mean add a new empty form or add an existing form? A new form. > > > following: > > > > http://www.haimann.us/Images/Test.png > > I recommend to adapt the $mode and $H directive in the main source > (usually projectname.lpr). > > > > After selecting this option, the new form appears messed up. > > What means messed up? It's an empty form, isn't it? The new form and it's source will not compile unless i comment out the: {$I unit1.lrs} I tried renaming unit1 to the new unit name, but it did not like the lrs file. It refused to compile. > > > > At the > > botton of the unit.pas file the following is displayed: > > > > initialization > > {$I unit1.lrs} > > > > Even after I save the unit under another name. After compilation when > > the form is displayed via a show.modal, the form is blank. > > Is there someway to repair this app > > How do you create the form? > > Mattias -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Can't add new form to Lazarus App
On Thu, 29 Sep 2016 05:59:49 -0500 "Terry A. Haimann" wrote: >[...] > > What means messed up? It's an empty form, isn't it? > > The new form and it's source will not compile unless i comment out the: > > {$I unit1.lrs} > > I tried renaming unit1 to the new unit name, but it did not like the lrs > file. It refused to compile. How did you create the form? Can you post the first few lines of the unit1.lrs? Mattias -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] lazarus 1.6+fpc 2.6.4, win32, crashes in iphtml.pas
Hello, I'm playing with lazarus 1.6 (a bit late, I know) with fpc 2.6.4, win32, and I have a strange problem with the ide: the object inspector information box shows nothing and, eventually, when I click on fields in the object inspector, lazarus becomes unresponsive and then crashes. If try to begug the ide under lazarus (tried both with the old 1.4.4 and the new 1.6), I see that it crashes in the heap manager (heap.inc) when it tries to allocate 1117978624 bytes (!) This is the call stack: #0 HANDLEERRORADDRFRAME(-1, 0x7c9201e0, 0x7c91e920) at D:\fpc-2.6.4\rtl\inc\system.inc:962 #1 HANDLEERRORFRAME(203, 0x10f6f92c) at D:\fpc-2.6.4\rtl\inc\system.inc:992 #2 HANDLEERROR(203) at D:\fpc-2.6.4\rtl\inc\system.inc:1002 #3 ALLOC_OSCHUNK(0x17619c4, 0, 1117978624) at D:\fpc-2.6.4\rtl\inc\heap.inc:833 #4 SYSGETMEM_VAR(1117973760) at D:\fpc-2.6.4\rtl\inc\heap.inc:1006 #5 SYSGETMEM(1117973760) at D:\fpc-2.6.4\rtl\inc\heap.inc:1050 #6 GETMEM(0x1b, 1117973745) at D:\fpc-2.6.4\rtl\inc\heap.inc:251 #7 NEWANSISTRING(1117973736) at D:\fpc-2.6.4\rtl\inc\astrings.inc:64 #8 FPC_TRUELY_ANSISTR_UNIQUE(0xfda683) at D:\fpc-2.6.4\rtl\inc\astrings.inc:659 #9 fpc_ansistr_unique at D:\fpc-2.6.4\rtl\i386\i386.inc:1585 #10 UPPERCASE(0xfda683 #255#139'E'#152#137'E'#248#198'E'#224, 0xfda683 #255#139'E'#152#137'E'#248#198'E'#224) at D:\fpc-2.6.4\rtl\objpas\sysutils\sysstr.inc:97 #11 TIPHTML__NEXTTOKEN() at iphtml.pas:5132 #12 TIPHTML__PARSEHEAD(0x154e04c0, ) at iphtml.pas:5451 #13 TIPHTML__PARSEHTML() at iphtml.pas:7474 #14 TIPHTML__PARSE() at iphtml.pas:7538 #15 TIPHTML__LOADFROMSTREAM(0x131e14c0, ) at iphtml.pas:4725 #16 TLAZIPHTMLCONTROL__SETHTMLCONTENT(0x131e14c0, 0x0, variable>) at ipidehtmlcontrol.pas:368 #17 TMAINIDE__OICHANGEDTIMERTIMER(0x1324fc48, ) at main.pp:11811 #18 TCUSTOMTIMER__DOONTIMER() at customtimer.pas:175 #19 TCUSTOMTIMER__TIMER() at customtimer.pas:150 #20 TIMERCALLBACKPROC(0, 275, 20158, 489829657) at .\win32\win32callback.inc:2773 #21 USER32!GetDC at :0 #22 ?? at :0 The strange things is the transition between #10 and #11, line 5132 of iphtml.pas *doesn't* call uppercase, it is ParmName := ParmString and ParmString is function ParmString: string; begin if PBW = 0 then Result := '' else begin ParmBuf[PBW] := #0; Result := StrPas(ParmBuf); PBW := 0; end; end; Maybe there's a stray pointer somewhere that messes up the stack? If I uninstall turbopower_ipro I get the plain text information box in the object inspector and no crashes. If I run lazarus directly under gdb, I get a different backtrace (but still crashes in TIpHtml.ParseHead): Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 3692.0x340] fpc_ansistr_decr_ref (S=0xfda682) at D:/fpc-2.6.4/rtl/i386/i386.inc:1542 1542decl(%edx) (gdb) bt #0 fpc_ansistr_decr_ref (S=0xfda682) at D:/fpc-2.6.4/rtl/i386/i386.inc:1542 #1 0x10f6f810 in ?? () #2 0x00fdb714 in TIPHTML__PARSEHEAD (PARENT=0x13821af0, this=) at iphtml.pas:5451 #3 0x00fe2865 in TIPHTML__PARSEHTML (this=) at iphtml.pas:7474 #4 0x00fe2b96 in TIPHTML__PARSE (this=) at iphtml.pas:7538 #5 0x00fd99fa in TIPHTML__LOADFROMSTREAM (S=0x1388c0c8, this=) at iphtml.pas:4725 #6 0x01032007 in TLAZIPHTMLCONTROL__SETHTMLCONTENT (STREAM=0x1388c0c8, NEWURL=0x0, this=) at ipidehtmlcontrol.pas:368 #7 0x00793a62 in DOHTML (parentfp=0x10f6fa84) at idehelpintf.pas:345 #8 0x00793913 in THINTWINDOWMANAGER__SHOWHINT (SCREENPOS=..., THEHINT=0x14ad8838 'href="lazdoc://lazarus/lazdoc.css" type="text/css">'#13#10'http-equiv="Content-Type" content="text/html; charset=utf-8">'#13#10''#13#10' '..., this=) at idehelpintf.pas:367 #9 0x00849258 in TSOURCEEDITORHINTWINDOWMANAGER__ACTIVATEHINT ( SCREENRECT=..., ABASEURL=0x138b56c 'lazdoc://', AHINT=0x14ad8838 'href="lazdoc://lazarus/lazdoc.css" type="text/css">'#13#10'http-equiv="Content-Type" content="text/html; charset=utf-8">'#13#10''#13#10' '..., AAUTOSHOWN=true, this=) at sourceeditor.pp:1907 #10 0x0086589b in TSOURCEEDITORMANAGER__ACTIVATEHINT (SCREENRECT=..., BASEURL=0x138b56c 'lazdoc://', THEHINT=0x14ad8838 'href="lazdoc://lazaru s/lazdoc.css" type="text/css">'#13#10'content="t ext/html; charset=utf-8">'#13#10''#13#10'class="header"> r>'..., AUTOSHOWN=true, this=) at sourceeditor.pp:10685 #11 0x0084dbf0 in TSOURCEEDITOR__ACTIVATEHINT (CLIENTRECT=..., ABASEURL=0x138b56c 'lazdoc://', AHINT=0x14ad8838 'href="lazdoc://lazarus/ lazdoc.css" type="text/css">'#13#10'content="tex t/html; charset=utf-8">'#13#10''#13#10' '..., AAUTOSHOWN=true, this=) at sourceeditor.pp:3304 #12 0x00470cd8 in TMAINIDE__ONSRCNOTEBOOKSHOWHINTFORSOURCE ( SRCEDIT=0x128142c0, CARETPOS=..., AUTOSHOWN=true, this=) at main.pp:10818 #13 0x0086074a in TSOURCENOTEBOOK__SHOWSYNEDITHINT (MOUSEPOS=..., this=) at sourceeditor.pp:8860 #14 0x00849745 in TSOURCEEDITORHINTWINDOWMANAGER__HINTTIMER ( SENDER=0x1337d598, t
Re: [Lazarus] Can't add new form to Lazarus App
On Thu, 2016-09-29 at 13:17 +0200, Mattias Gaertner via Lazarus wrote: > On Thu, 29 Sep 2016 05:59:49 -0500 > "Terry A. Haimann" wrote: > > >[...] > > > What means messed up? It's an empty form, isn't it? > > > > The new form and it's source will not compile unless i comment out the: > > > > {$I unit1.lrs} > > > > I tried renaming unit1 to the new unit name, but it did not like the lrs > > file. It refused to compile. > > How did you create the form? > Can you post the first few lines of the unit1.lrs? > > Mattias I created the form by clicking on NewForm and then I tried to rename it from the Object Inspector. I am running Lazarus 1.2.4 This app has probably been used by several versions of Lazarus. Terry It renamed it to the new filename: { This is an automatically generated lazarus resource file } LazarusResources.Add('TStRschForm','FORMDATA',[ 'TPF0'#11'TStRschForm'#10'StRschForm'#4'Left'#3#235#0#6'Height'#3#240#0#3'Top' +#3#145#0#5'Width'#3#250#2#7'Caption'#6#10'StRschForm'#12'ClientHeight'#3#240 +#0#11'ClientWidth'#3#250#2#10'LCLVersion'#6#7'1.2.4.0'#0#6'TLabel'#6'Label1' +#4'Left'#2#24#6'Height'#2#15#3'Top'#2#30#5'Width'#2#23#7'Caption'#6#4'Test' +#11'ParentColor'#8#0#0#0 ]); -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Can't add new form to Lazarus App
On Thu, 29 Sep 2016 14:26:02 -0500 "Terry A. Haimann" wrote: > On Thu, 2016-09-29 at 13:17 +0200, Mattias Gaertner via Lazarus wrote: > > On Thu, 29 Sep 2016 05:59:49 -0500 > > "Terry A. Haimann" wrote: > > > > >[...] > > > > What means messed up? It's an empty form, isn't it? > > > > > > The new form and it's source will not compile unless i comment out the: > > > > > > {$I unit1.lrs} > > > > > > I tried renaming unit1 to the new unit name, but it did not like the lrs > > > file. It refused to compile. > > > > How did you create the form? > > Can you post the first few lines of the unit1.lrs? > > > > Mattias > > I created the form by clicking on NewForm and then I tried to rename it > from the Object Inspector. I am running Lazarus 1.2.4 This app has > probably been used by several versions of Lazarus. > > Terry > > > It renamed it to the new filename: > > { This is an automatically generated lazarus resource file } > > LazarusResources.Add('TStRschForm','FORMDATA',[ > > 'TPF0'#11'TStRschForm'#10'StRschForm'#4'Left'#3#235#0#6'Height'#3#240#0#3'Top' > > +#3#145#0#5'Width'#3#250#2#7'Caption'#6#10'StRschForm'#12'ClientHeight'#3#240 > > +#0#11'ClientWidth'#3#250#2#10'LCLVersion'#6#7'1.2.4.0'#0#6'TLabel'#6'Label1' > > +#4'Left'#2#24#6'Height'#2#15#3'Top'#2#30#5'Width'#2#23#7'Caption'#6#4'Test' > +#11'ParentColor'#8#0#0#0 > ]); Ok. So it is *not* an empty form. Please post the whole unit and the compiler error you get. Mattias -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Can't add new form to Lazarus App
29.09.2016 22:26, Terry A. Haimann via Lazarus пишет: I created the form by clicking on NewForm and then I tried to rename it from the Object Inspector. I am running Lazarus 1.2.4 This app has Lazarus 1.2.4? Is it a joke? probably been used by several versions of Lazarus. -- Best regards, Maxim Ganetsky mailto:gan...@narod.ru -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Can't add new form to Lazarus App
On Fri, 30 Sep 2016 00:38:39 +0300, Maxim Ganetsky wrote: >29.09.2016 22:26, Terry A. Haimann via Lazarus ?: >> I created the form by clicking on NewForm and then I tried to rename it >> from the Object Inspector. I am running Lazarus 1.2.4 This app has > >Lazarus 1.2.4? Is it a joke? > This is straying from the point, but anybody who has worked for a LARGE (probably governmental) bureaucracy is likely to be all too familiar with being forced to use out-of-date software. Performing 'unapproved' upgrades may well mean disciplinary proceedings. Yes, I've had to work under those conditions. :( I completely understand the logic for the Lazarus developers wanting to know whether a problem can be reproduced with the latest version. You just have to remember that some people aren't allowed to use that version, as much as they would like to do so. Brian. -- ___ Lazarus mailing list Lazarus@lists.lazarus-ide.org http://lists.lazarus-ide.org/listinfo/lazarus