Re: [Lazarus] DragManager issues
On Fri, 12 Sep 2014 03:21:55 +0200 Hans-Peter Diettrich wrote: > I received messages from Mantis, that something changed in the bug > reports related to drag/drop. Please let me know when somebody wants to > put his hands on related code. What messages? Mattias -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] DragManager issues
On 09/12/2014 11:57 AM, Mattias Gaertner wrote: On Fri, 12 Sep 2014 03:21:55 +0200 Hans-Peter Diettrich wrote: I received messages from Mantis, that something changed in the bug reports related to drag/drop. Please let me know when somebody wants to put his hands on related code. What messages? I guess about changing laztarget recently. zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] StrToDate and DefaultFormatSettings
Hi, I need to convert strings with format "d-mmm-y" to TDateTime. For example: '12-Sep-14' Here's my code: DefaultFormatSettings.DateSeparator:='-'; DefaultFormatSettings.ShortDateFormat:='D-MMM-Y'; DefaultFormatSettings.ShortMonthNames[1] := 'Jan'; DefaultFormatSettings.ShortMonthNames[2] := 'Feb'; DefaultFormatSettings.ShortMonthNames[3] := 'Mar'; DefaultFormatSettings.ShortMonthNames[4] := 'Apr'; DefaultFormatSettings.ShortMonthNames[5] := 'May'; DefaultFormatSettings.ShortMonthNames[6] := 'Jun'; DefaultFormatSettings.ShortMonthNames[7] := 'Jul'; DefaultFormatSettings.ShortMonthNames[8] := 'Aug'; DefaultFormatSettings.ShortMonthNames[9] := 'Sep'; DefaultFormatSettings.ShortMonthNames[10] := 'Oct'; DefaultFormatSettings.ShortMonthNames[11] := 'Nov'; DefaultFormatSettings.ShortMonthNames[12] := 'Dec'; lStr := DateToStr(now); // This works Ok. lDate := StrToDate(lStr); // Here I get EConvert exception. Am I missing something?. -- Leonardo M. Ramé http://leonardorame.blogspot.com -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Qt - Checkbox state images
2014.08.13. 15:45 keltezéssel, Gabor Boros írta: My problem is, image for tbCheckBoxCheckedDisabled and tbCheckBoxMixedDisabled is not grayed out under KDE. Why? Hi All, Reported as 26586 and fixed in trunk 46198. Gabor -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] StrToDate and DefaultFormatSettings
On Fri, Sep 12, 2014 at 08:18:36AM -0300, "Leonardo M. Ramé" wrote: > Hi, I need to convert strings with format "d-mmm-y" to TDateTime. > > For example: '12-Sep-14' > > Here's my code: > > DefaultFormatSettings.DateSeparator:='-'; > DefaultFormatSettings.ShortDateFormat:='D-MMM-Y'; > DefaultFormatSettings.ShortMonthNames[1] := 'Jan'; > DefaultFormatSettings.ShortMonthNames[2] := 'Feb'; > DefaultFormatSettings.ShortMonthNames[3] := 'Mar'; > DefaultFormatSettings.ShortMonthNames[4] := 'Apr'; > DefaultFormatSettings.ShortMonthNames[5] := 'May'; > DefaultFormatSettings.ShortMonthNames[6] := 'Jun'; > DefaultFormatSettings.ShortMonthNames[7] := 'Jul'; > DefaultFormatSettings.ShortMonthNames[8] := 'Aug'; > DefaultFormatSettings.ShortMonthNames[9] := 'Sep'; > DefaultFormatSettings.ShortMonthNames[10] := 'Oct'; > DefaultFormatSettings.ShortMonthNames[11] := 'Nov'; > DefaultFormatSettings.ShortMonthNames[12] := 'Dec'; > lStr := DateToStr(now); // This works Ok. > lDate := StrToDate(lStr); // Here I get EConvert exception. > > Am I missing something?. Have you tried ScanDateTime()? Then you don't need to fiddle with the format settings. Henry -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] DragManager issues
On 12/09/14 11:18, zeljko wrote: > I guess about changing laztarget recently. Yeah, I got loads of those. Regards, - Graeme - -- fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal http://fpgui.sourceforge.net/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] StrToDate and DefaultFormatSettings
On 12/09/2014 13:04, Henry Vermaak wrote: On Fri, Sep 12, 2014 at 08:18:36AM -0300, "Leonardo M. Ramé" wrote: Hi, I need to convert strings with format "d-mmm-y" to TDateTime. For example: '12-Sep-14' This will accomplish the task. function DatestrToDateTime(const aDate: string): TDateTime; const sep = '-'; var el, p, im, id, iy: integer; d, m, y: word; dt: string; function FindMatch(const aMon: string): integer; var i: integer; begin DebugLn(['aMon=',aMon]); Result:=-1; for i:=Low(TMonthNameArray) to High(TMonthNameArray) do if SameText(aMon, DefaultFormatSettings.ShortMonthNames[i]) then begin Result:=i; Break; end; end; begin dt:=Trim(aDate); el:=Length(dt); if (el < 7) or (el > 11) then Exit(0.0); p:=Pos(sep, aDate); if (p=0) or (not TryStrToInt(Copy(dt, 1, p-1), id)) then Exit(0.0); Delete(dt, 1, p); p:=Pos(sep, dt); if (p=0) then Exit(0.0); im:=FindMatch(Copy(dt, 1, p-1)); if (im < 1) then Exit(0.0) else m:=im; Delete(dt, 1, p); if not TryStrToInt(dt, iy) then Exit(0.0); d:=id; if (iy < 2000) then Inc(iy, 2000); y:=iy; if not TryEncodeDate(y, m, d, Result) then Result:=0.0; end; -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Questions about SetLength
Hi, Maybe it is not a correct list, but I am going to ask my question anyway :) Is there a penalty for calling SetLength if array already has the length we need? And if there is a penalty - is there a way to write "generic" function SmartSetLength(array,length) that will only call SetLength if necessary? I hope other people find these questions interesting enough :) Thanks, Gena -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Questions about SetLength
Hi, Maybe it is not a correct list, but I am going to ask my question anyway :) Is there a penalty for calling SetLength if array already has the length we need? Yes, there's always penalty for operations that you don't need. FPC will generate normal call, pass arguments, etc. I checked if SetLength with ansistring detects that requested size is same: It doesn't, it performs whole allocation and moving. And if there is a penalty - is there a way to write "generic" function SmartSetLength(array,length) that will only call SetLength if necessary? No. Compiler internally emits information about element size, how are they refcounted etc. as a pointer. Your best bet would be "hacking" FPC to emit such information to your procedure and then pass it to internal fpc setlength. I would personally like it a lot if there was way to access "secret" information stored along with dynamic arrays/ansistrings, however it's not easy task. I think best bet would be storing secret information pointers along with refcount/length and then making functions that allow editing those data. Then we could have generic "dynamic array" type (I assume?). -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Questions about SetLength
On Fri, 12 Sep 2014 19:21:45 +0200 payl wrote: >[...] > > Is there a penalty for calling SetLength if array already has the length > > we need? > Yes, there's always penalty for operations that you don't need. FPC will > generate normal call, pass arguments, etc. I checked if SetLength with > ansistring detects that requested size is same: It doesn't, it performs > whole allocation and moving. Not always. Keep in mind that dynamic arrays have references and the array memory itself is a reference counted structure. SetLength creates a unique copy of the array, that means an array with reference count 1. If it is already unique nothing is changed. For example: var A,B: array of string; begin SetLength(A,10); // this allocates, A points to unique array A[0]:='bla'; // the A array is still unique SetLength(A,10); // no reallocation B:=A; // reference count increased to 2, not unique anymore SetLength(A,10); // reallocation to create a second array, now A // and B point to two unique arrays SetLength(A,10); // no reallocation SetLength(B,10); // no reallocation end; Mattias -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Help system questions
Hi list (and Laz devs),
I'm working on fixing some things in the help system.
1. function TChmHelpViewer.ShowNode(Node: THelpNode; var ErrMsg: string
): TShowHelpResult;
in
components\chmhelp\packages\idehelp\lazchmhelp.pas
has
if Pos('file://', Node.URL) = 1 then
begin
Result := PassTheBuck(Node, ErrMsg);
Exit;
end;
Is ignoring the results of the PassTheBuck (nice name ;) ) call on
purpose or should it be changed to Exit(Result)?
2. My patch in
http://bugs.freepascal.org/view.php?id=26079
seems to work ok: for context-sensitive lhelp is started, hidden, loads
.chm files and then is shown once the files are loaded.
Then it shows the help for the requested item.
However, after a couple of seconds (which suggests a timeout error in
the IPC communication) the IDE starts the Code Browser, looking for the
identifier.
Getting a bit tired, so perhaps somebody can tell me where the fallback
to showing the code browser is coded...
Thanks,
Reinier
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