Re: [Lazarus] TAChart possible Bug: Series with UserDefinedChart Source not are redrawing properly
2011/4/19 Miguel A. Risco mris...@gmail.com: Hi All, I found a possible Bug in TAChart component. Lazarus v0.9.30.1 SVN:3056 on Windows 7 x64 Create a Project with a TChart and TButton controls, add a TLineseries and TUserDefinedChartSource with some points, select the last one as source for the serie. Define a Var array of real and assign values to the array on the Tbutton onclick event. Populate the AItem values with the data in the array. Sometimes when I zoom the chart the serie is not redrawing. (The example project is not attached because size limit of the message). Make a zoom on the second point [0.1,0.5] but without include the zero Y axis value, the serie is not drawing but if the zero level is included in the zoom then the serie is drawing correctly) I can not reproduce on WindowsXP with Lazarus trunk. I am not sure what problem did you have with the attachment -- it should be very small. I have created an example project for you -- do you see the issue with it? -- Alexander S. Klenin userdefseries_zoom_test.7z Description: Binary data -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] screen.cursor := crHourglass and Linux
On 18/04/2011 20:21, DSK wrote: To use it, add the unit to the implementation uses clause and then just call DisplayHourglass before any long process. It'll switch back to whatever the cursor was then the method terminates. Unless you store a reference of the result of the DisplayCursor() call, it will not work under FPC (like it does under Delphi). FPC is *not* compatible with the way Delphi works in this regard. The FPC developers are also not willing to fix this because the freeing of a undeclared interface reference in a local method is a undefined/undocumented feature of Delphi - even though thousands of Delphi developers have used that feature for many years. NOTE: The issue is only if you call DisplayCursor() without storing the result in a local variable. 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] reverse engineering tool wanted
On 18/04/2011 23:30, Marc Santhoff wrote: I'm searching a reverse engineering tool that can handle lazarus' code. The main goal is to generate class diagrams and sequence diagrams from source. I'm not sure if ModelMaker can do the reverse engineering, but generating code and maintaining code from UML diagrams are very good. Also there is ESS-Model: http://essmodel.sourceforge.net/ 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] Menu caption standards
On 19/04/2011 01:08, Flávio Etrusco wrote: so it should be used for any menu that invokes a dialog, no matter it's modal or not. That's not the case in Mozilla Thunderbird. Only modal dialogs have the ellipsis in the menu item. Examples: * 'Tools Preferences' does not. * 'File New Message' does not. * 'File Print' does because it is modal. etc... At least this is the case under Linux. 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] screen.cursor := crHourglass and Linux
2011/4/19 Graeme Geldenhuys graemeg.li...@gmail.com: Unless you store a reference of the result of the DisplayCursor() call, it will not work under FPC (like it does under Delphi). FPC is *not* compatible with the way Delphi works in this regard. The FPC developers are also not willing to fix this because the freeing of a undeclared interface reference in a local method is a undefined/undocumented feature of Delphi I thought it was freed just like Delphi (so no resource leak), but not at the same time (which is undocumented) as Delphi. . NOTE: The issue is only if you call DisplayCursor() without storing the result in a local variable. Vincent -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TAChart possible Bug: Series with UserDefinedChart Source not are redrawing properly
Hi Alexander, your Project is ok, but if your put a tbutton and fill the array on the Onclick event and not in the constructor of the form then the series is not drawing after the zoom on the second point. If I comment the line if not RectIntersectsRect(ext, ParentChart.CurrentExtent) then exit; in the TASeries.pas unit then the series is drawing properly. Best regards Miguel. -Mensaje original- De: Alexander Klenin [mailto:kle...@gmail.com] Enviado el: martes, 19 de abril de 2011 01:14 a.m. Para: Lazarus mailing list Asunto: Re: [Lazarus] TAChart possible Bug: Series with UserDefinedChart Source not are redrawing properly 2011/4/19 Miguel A. Risco mris...@gmail.com: Hi All, I found a possible Bug in TAChart component. Lazarus v0.9.30.1 SVN:3056 on Windows 7 x64 Create a Project with a TChart and TButton controls, add a TLineseries and TUserDefinedChartSource with some points, select the last one as source for the serie. Define a Var array of real and assign values to the array on the Tbutton onclick event. Populate the AItem values with the data in the array. Sometimes when I zoom the chart the serie is not redrawing. (The example project is not attached because size limit of the message). Make a zoom on the second point [0.1,0.5] but without include the zero Y axis value, the serie is not drawing but if the zero level is included in the zoom then the serie is drawing correctly) I can not reproduce on WindowsXP with Lazarus trunk. I am not sure what problem did you have with the attachment -- it should be very small. I have created an example project for you -- do you see the issue with it? -- Alexander S. Klenin -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] screen.cursor := crHourglass and Linux
On 19/04/2011 08:44, Vincent Snijders wrote: I thought it was freed just like Delphi (so no resource leak), but not at the same time (which is undocumented) as Delphi. That's exactly the issue I am referring too. Under Delphi the temporary interface reference gets freed only when the interface goes out of scope - example when a procedure/function block ends. FPC I believe frees the temporary interface reference immediately (or something undefined - I can't remember). Even though the freeing of a temporary interface is not documented in Delphi per se, its behaviour has been consistent for over a decade. There are even 3rd party products based on that behaviour (Raize CodeSite extensions etc). So even though it is not documented, it's behaviour is well known, understood and has always been consistent, no matter which version of Delphi you use. But yes, I understand the FPC developers point of view too. 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] Menu caption standards
Graeme Geldenhuys kirjoitti tiistai, 19. huhtikuuta 2011 09:35:01: On 19/04/2011 01:08, Flávio Etrusco wrote: so it should be used for any menu that invokes a dialog, no matter it's modal or not. That's not the case in Mozilla Thunderbird. Only modal dialogs have the ellipsis in the menu item. Examples: * 'Tools Preferences' does not. * 'File New Message' does not. * 'File Print' does because it is modal. etc... Yes, the conventions are not very strict in this case. Now the use of 3 dots In Lazarus is more consistent than it used to be. I can add the dots also to all View-menu items + other places that show dialogs, if it's the preferred way. What do others say? User interfaces are difficult to design because there is no single right solution, it is always a matter of opinion. Juha -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TAChart possible Bug: Series with UserDefinedChart Source not are redrawing properly
Calling ds.Reset make the fix. I also think that Reset could be called by EndUpdate. Thank you Miguel -Mensaje original- De: Alexander Klenin [mailto:kle...@gmail.com] Enviado el: martes, 19 de abril de 2011 02:04 a.m. Para: Lazarus mailing list Asunto: Re: [Lazarus] TAChart possible Bug: Series with UserDefinedChart Source not are redrawing properly On Tue, Apr 19, 2011 at 17:46, Miguel A. Risco mris...@gmail.com wrote: Hi Alexander, your Project is ok, but if your put a tbutton and fill the array on the Onclick event and not in the constructor of the form then the series is not drawing after the zoom on the second point. If I comment the line if not RectIntersectsRect(ext, ParentChart.CurrentExtent) then exit; in the TASeries.pas unit then the series is drawing properly. Ah, I see now. You need to call ds.Reset before ds.EndUpdate. Maybe Reset should be called automatically by EndUpdate... -- Alexander S. Klenin -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Menu caption standards
19.04.2011 15:06, Juha (gmail) wrote: User interfaces are difficult to design because there is no single right solution, it is always a matter of opinion. Look at windows (xp/vista) and osx design guidlines. Best regards, Paul Ishenin -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Menu caption standards
Flávio Etrusco wrote: Hello, I noticed some changes to menus' captions and I disagree with them. AFAIK the standard for menu captions is to have '...' (ellipsis) to indicate the menu doesn't have direct action, so it should be used for any menu that invokes a dialog, no matter it's modal or not. In that case, something like a browser's New - New Window should be followed by an ellipsis. Conventionally, it is not, which suggests that the criterion is whether the action is relevant to the current window in which case it would usually (but not necessarily) be modal. As another example, a browser's Edit - Find in This Page... brings up a non-modal dialogue associated with the current window. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TAChart possible Bug: Series with UserDefinedChart Source not are redrawing properly
On Tue, Apr 19, 2011 at 18:15, Miguel A. Risco mris...@gmail.com wrote: Calling ds.Reset make the fix. I also think that Reset could be called by EndUpdate. Done in r30379 -- Alexander S. Klenin -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] to the BGRABitmap maintainer...
Hi, I have been taking a quick look at the BGRABitmap package and looked through a few of the tutorials posted on the FPC Wiki. The library seems quite impressive - nice work. I have found a rather gaping API flaw though, regarding these two methods: function BGRA(red, green, blue, alpha: byte): TBGRAPixel; overload; function BGRA(red, green, blue: byte): TBGRAPixel; overload; From the name, one would expect the parameters to be blue, green, red, alpha, but in fact that is not the case - but rather the reverse is true. Maybe a more sensible name for those methods would be RGBA(...)? That way the name of the method matches the parameters order better. eg: Code take from: http://wiki.freepascal.org/BGRABitmap bmp.FillRect(40,40,80,80,BGRA(0,0,255,128), dmDrawWithTransparency); If one doesn't know the API and parameter names, but rather just looking at the code itself, I would have thought the above code would draw a Red square, not a Blue square. 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
[Lazarus] Yet another wiki attack
http://wiki.freepascal.org/Lazarus_IDE_Tools The above URL has no text regarding the Lazarus IDE Tools feature. Instead it has some spam. 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] Yet another wiki attack
19.04.2011 16:50, Graeme Geldenhuys пишет: http://wiki.freepascal.org/Lazarus_IDE_Tools The above URL has no text regarding the Lazarus IDE Tools feature. Instead it has some spam. Thanks, I reverted those pages and blocked spammers. Best regards, Paul Ishenin -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Menu caption standards
Hello Lazarus-List, Tuesday, April 19, 2011, 8:35:01 AM, you wrote: GG That's not the case in Mozilla Thunderbird. Only modal dialogs have the GG ellipsis in the menu item. Examples: GG * 'Tools Preferences' does not. GG * 'File New Message' does not. GG * 'File Print' does because it is modal. GG etc... GG At least this is the case under Linux. The ... is added when the menu entry is an action verb and this action requires further configuration/data. Examples: Open: If the option just only open the file selector no ..., but if it opens a configuration window to select which open it should have it. Print: If it prints directly no dots, but if configuration is opened then ... Select All: If selects all text no ..., but if a dialog is opened to define what to select the elipsis must be added. Configure: The verb itself indicates a new dialog, so it will never present an ... Ellipsis indicates that a verb need more configuration to finish its action. 98% times the opened dialog is a modal dialog. -- Best regards, José -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] to the BGRABitmap maintainer...
On Tue, Apr 19, 2011 at 10:47, Graeme Geldenhuys graemeg.li...@gmail.com wrote: Hi, I have been taking a quick look at the BGRABitmap package and looked through a few of the tutorials posted on the FPC Wiki. The library seems quite impressive - nice work. I have found a rather gaping API flaw though, regarding these two methods: function BGRA(red, green, blue, alpha: byte): TBGRAPixel; overload; function BGRA(red, green, blue: byte): TBGRAPixel; overload; From the name, one would expect the parameters to be blue, green, red, alpha, but in fact that is not the case - but rather the reverse is true. Maybe a more sensible name for those methods would be RGBA(...)? That way the name of the method matches the parameters order better. eg: Code take from: http://wiki.freepascal.org/BGRABitmap bmp.FillRect(40,40,80,80,BGRA(0,0,255,128), dmDrawWithTransparency); If one doesn't know the API and parameter names, but rather just looking at the code itself, I would have thought the above code would draw a Red square, not a Blue square. red-green-blue is standard order of RGB components, so changing it to blue-green-red wouldn't be very wise. Maybe changing function names to something more suitable is better? I believe this is little annoyance - once you take a look at parameter names, you see what is their meaning. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] ExecuteProcess - do not wait for process on Linux
Hello Lazarus mailing list! How can I execute process/start external application similar to myapp where I don't want to wait until process ends. Thanks. -- Best regards, TRoland http://www.rotursoft.sk http://exekutor.rotursoft.sk -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Yet another wiki attack
Paul Ishenin schrieb: http://wiki.freepascal.org/Lazarus_IDE_Tools The above URL has no text regarding the Lazarus IDE Tools feature. Instead it has some spam. Thanks, I reverted those pages and blocked spammers. Thanks2 :-) Shouldn't this page be titled Code Tools? DoDi -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] reverse engineering tool wanted
Marc Santhoff schrieb: I'm searching a reverse engineering tool that can handle lazarus' code. The main goal is to generate class diagrams and sequence diagrams from source. See FPC utils/fpdoc, e.g. makeskel is quite nice. DoDi -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] What are ppas.bat and link.res?
what are ppas.bat and link.res? From examining the code it appears that ppas.bat contains code to link the executable and the link.res resource files. I just want to know it if is safe to add them to my .gitignore file. -- Frank Church === http://devblog.brahmancreations.com -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] to the BGRABitmap maintainer...
On 19/04/2011 11:34, Aleksa Todorovic wrote: red-green-blue is standard order of RGB components, so changing it to blue-green-red wouldn't be very wise. Maybe changing function names to something more suitable is better? That is exactly the point I'm trying to make. Everybody knows the order as being R-G-B, but the function BGRA() seems to imply B-G-R order. I think renaming those two functions to RGBA() would be more logical - even if you don't know the parameter names (ie: just by looking at a code sample). I believe this is little annoyance - once you take a look at parameter names, you see what is their meaning. Yes, but just looking at a code sample, like the ones in BGRABitmap Tutorial wiki page, is rather confusing. The function name implies a non-standard order. 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
[Lazarus] CodeTools facility for documenting source code?
Is there a codetools facility that can help you annotate changes to your functions, and also help you create some kind of documentation block whenever you create a new function or procedure? eg when I want to commit changes to SCM I would like a tool that can list all procedures which have changed and give me the option to jumping to them one by one and noting the changes, then summarize the changes at the beginning of the file itself. -- Frank Church === http://devblog.brahmancreations.com -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] to the BGRABitmap maintainer...
It would be good if the author puts his name in the wiki page about this library: http://wiki.lazarus.freepascal.org/BGRABitmap It would also be good if the sources are put in subversion in a normal way, instead of putting zip files in subversion with the sources. -- Felipe Monteiro de Carvalho -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] to the BGRABitmap maintainer...
On Tue, Apr 19, 2011 at 1:04 PM, Felipe Monteiro de Carvalho felipemonteiro.carva...@gmail.com wrote: It would also be good if the sources are put in subversion in a normal way, instead of putting zip files in subversion with the sources. Ok, ignore that =D I was looking at the wrong place ... -- Felipe Monteiro de Carvalho -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] CodeTools facility for documenting source code?
Frank Church vfcli...@gmail.com hat am 19. April 2011 um 12:51 geschrieben: Is there a codetools facility that can help you annotate changes to your functions, and also help you create some kind of documentation block whenever you create a new function or procedure? eg when I want to commit changes to SCM I would like a tool that can list all procedures which have changed and give me the option to jumping to them one by one and noting the changes, then summarize the changes at the beginning of the file itself. Not yet. Maybe you can be more specific about which have changed. I guess you mean since last commit to SCM (or svn or git ...). For this the IDE needs a plugin for the version control system. Or do you mean the changes since last save to disk? Mattias-- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Missing FPG.CFG on Windows Installer from Snapshot
Hello, Recently I downloded the file Lazarus-0.9.31-30355-fpc-2.5.1-20110418-win32.exe from snapshotFTP Server ftp://ftp.freepascal.org/pub/lazarus/snapshots/;, and noticed that the file fpc.cfg is not included along with the binaries of the FPC, which causes an error in the first execution of Lazarus. is this intentional ? (for some reason) or this file is really missing? []s Daniel Conheça o Projeto ACBr - Automaçao Comercial Brasil DJSystem a Loja Patrocinadora do ACBr-- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] CodeTools facility for documenting source code?
2011/4/19 Mattias Gaertner nc-gaert...@netcologne.de Frank Church vfcli...@gmail.com hat am 19. April 2011 um 12:51 geschrieben: Is there a codetools facility that can help you annotate changes to your functions, and also help you create some kind of documentation block whenever you create a new function or procedure? eg when I want to commit changes to SCM I would like a tool that can list all procedures which have changed and give me the option to jumping to them one by one and noting the changes, then summarize the changes at the beginning of the file itself. Not yet. Maybe you can be more specific about which have changed. I guess you mean since last commit to SCM (or svn or git ...). For this the IDE needs a plugin for the version control system. Or do you mean the changes since last save to disk? I am looking for something manually triggered that can check what procedures have been modified, or added, then I can jump to them one by one and note down my changes. I don't need something that is necessarily hooked into my VCS, but something that can diff the procedures individually and list those that have been changed. I also need to settle on a docblock style, and this stackoverflow thread is interesting http://stackoverflow.com/questions/750810/most-common-docblock-for-delphi-and-or-freepascal-code . Are any of the options here preferred by FPC/Lazarus developers? Mattias -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- Frank Church === http://devblog.brahmancreations.com -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] CodeTools facility for documenting source code?
On Tue, 19 Apr 2011, Frank Church wrote: 2011/4/19 Mattias Gaertner nc-gaert...@netcologne.de Frank Church vfcli...@gmail.com hat am 19. April 2011 um 12:51 geschrieben: Is there a codetools facility that can help you annotate changes to your functions, and also help you create some kind of documentation block whenever you create a new function or procedure? eg when I want to commit changes to SCM I would like a tool that can list all procedures which have changed and give me the option to jumping to them one by one and noting the changes, then summarize the changes at the beginning of the file itself. Not yet. Maybe you can be more specific about which have changed. I guess you mean since last commit to SCM (or svn or git ...). For this the IDE needs a plugin for the version control system. Or do you mean the changes since last save to disk? I am looking for something manually triggered that can check what procedures have been modified, or added, then I can jump to them one by one and note down my changes. I don't need something that is necessarily hooked into my VCS, but something that can diff the procedures individually and list those that have been changed. Yes, but changed relative to what ? What is your point of reference ? - Last save in IDE - last commit in VCS ? - Last time file was loaded ? I also need to settle on a docblock style, and this stackoverflow thread is interesting http://stackoverflow.com/questions/750810/most-common-docblock-for-delphi-and-or-freepascal-code. Are any of the options here preferred by FPC/Lazarus developers? fpdoc, obviously. Michael.-- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] CodeTools facility for documenting source code?
On 19/04/2011 13:50, Frank Church wrote: I am looking for something manually triggered that can check what procedures have been modified, or added, then I can jump to them one by one and note down my changes. I don't need something that is necessarily hooked into my VCS, but something that can diff the procedures individually and list those that have been changed. I also need to settle on a docblock style, and this stackoverflow thread is interesting http://stackoverflow.com/questions/750810/most-common-docblock-for-delphi-and-or-freepascal-code. Are any of the options here preferred by FPC/Lazarus developers? As a personal opinion, I would like to see that in fpdoc. For example introducing a checksum field, for each documented procedure. Then you could always get a list of modified, since last documentation functions. Obviously it be nice if the checksum was not sensitive to changes in whitespace only. It would not show you a diff, of what was changed, but that can be found via svn and co (Maybe another field, indicating which revision a file had, at the time of documenting Martin -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Converting C++ Uint8 to Red,Green,Blue
Hi, I'm working with a library that let me get a pointer to an UInt8 array containing the pixels of an image. To show the image on screen, using Lazarus, I must know the Red,Green,Blue and Alpha values of each pixel (am I right?), how can I convert each byte of the UInt8 array to RGBA? Thanks in advance, -- 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] Converting C++ Uint8 to Red,Green,Blue
On 2011-04-19 10:39:59 -0300, Leonardo M. Ramé wrote: Hi, I'm working with a library that let me get a pointer to an UInt8 array containing the pixels of an image. To show the image on screen, using Lazarus, I must know the Red,Green,Blue and Alpha values of each pixel (am I right?), how can I convert each byte of the UInt8 array to RGBA? Thanks in advance, -- Let me answer to myself. I didn't know that I can use lBuffer as an array, so, the index 0 - Red, 1 - Green, 2 - Blue, 3 - Alpha. Here's how a buffer can be paint on a form using TBGRABitmap: lBmp := TBGRABitmap.Create(FImgWidth, FImgHeight); try for y := 0 to lBmp.Height-1 do begin p := lBmp.Scanline[y]; for x := 0 to lBmp.Width-1 do begin p^.red := lBuffer[0]; p^.green := lBuffer[1]; p^.blue := lBuffer[2]; p^.alpha := lBuffer[3]; inc(p); inc(lBuffer); end; end; // Self is a TForm lBmp.Draw(Self.Canvas, 0, 0); finally lbmp.Free; end; -- Leonardo M. Ramé http://leonardorame.blogspot.com -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] SIGSEGV with gdb.exe
Hi all, I have a problem with debugger, I don't know if it is a my specific issue, but simply opening Lazarus and hitting F9 to compile and run an empty project, I get a External: SIGSEGV error. But only if I have gdb.exe as debugger. If I remove it from options, the project works. Anyway... I can't understand if an issue that I have with a project where I'm working on, is a Lazarus issue or a my bug: sometime it works, sometime not. Randomly calling a function, it works, sometime not... so enabling debugging function, I wanted to see where was the problem... but I discovered that gdb.exe doesn't works anymore, with empty project also. From here the question: it is only a my problem? Is gdb.exe working and is there a real problem with lazarus/fpc? I'm on Lazarus 0.9.30 r30385M FPC 2.4.2 i386-win32-win32/win64 (just updated via svn) Thanks! Kjow -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] ExecuteProcess - do not wait for process on Linux
For this, you should use TProcess without poWaitOnExit option. ExecuteProcess would block, always. -- View this message in context: http://free-pascal-lazarus.989080.n3.nabble.com/Lazarus-ExecuteProcess-do-not-wait-for-process-on-Linux-tp2838202p2839464.html Sent from the Free Pascal - Lazarus mailing list archive at Nabble.com. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] To all users of TBarChart
Hi all, 1. As of Lazarus svn r 30386 unit Chart is renamed to BarChart. 2. BarChart unit will be marked as deprecated soon and removed from lcl package. zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] TTimer on design time
I'm doing some some controls that uses TTimer. I don't know why, but from some time ago, TTimer don't fire the OnTimer procedure. I see in their source and is wrote: procedure TCustomTimer.UpdateTimer; begin KillTimer; if (FEnabled) and (FInterval 0) and (([CSDESIGNING,csLoading,csDestroying]*ComponentState=[])) and Assigned (FOnTimer) then begin //DebugLn(['TCustomTimer.UpdateTimer ',dbgsName(Self),' WidgetSet.CreateTimer']); FTimerHandle := WidgetSet.CreateTimer(FInterval, @Timer); if FTimerHandle=0 then begin FTimerHandle:=cIdNoTimer; raise EOutOfResources.Create(SNoTimers); end; if Assigned(OnStartTimer) then OnStartTimer(Self); end; end; So, what's the problem of fire OnTimer on Design time? Maybe I'm wrong, but at least version 0.9.29 fires this event at design time. Regards, Fabio -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] SIGSEGV with gdb.exe
On 19/04/2011 18:13, Kjow wrote: ut only if I have gdb.exe as debugger. If I remove it from options, the project This may be caused by your anti-virus solution, firewall, or certain drivers. BitDefender is known to cause this. Comodo firewall is known to cause this. I suspect there may be printer drivers that cause this too, but I am not sure. With some anti virus it is possible to switch to game mode, or similar. This used to be the case for bitdefender until recently. Now it appears, that bit defender forces itself to be load (as dll) with *every* application. But if entered while in gdb crashes. There is nothing (as far as I know) that can be done in Lazarus or FPC. If those products, (deliberately or not) behave differently, if the host app is being debugged, then this is to me a fault of the manufacturer of these products. Alternatively, there may be an issue in gdb itself, that causes certain code to rash. I have no idea, but again, it can't be fixed in Lazarus Best regards Martin -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] SIGSEGV with gdb.exe
2011/4/19 Martin laza...@mfriebe.de: This may be caused by your anti-virus solution, firewall, or certain drivers. BitDefender is known to cause this. Comodo firewall is known to cause this. I suspect there may be printer drivers that cause this too, but I am not sure. With some anti virus it is possible to switch to game mode, or similar. This used to be the case for bitdefender until recently. Now it appears, that bit defender forces itself to be load (as dll) with *every* application. But if entered while in gdb crashes. There is nothing (as far as I know) that can be done in Lazarus or FPC. If those products, (deliberately or not) behave differently, if the host app is being debugged, then this is to me a fault of the manufacturer of these products. Alternatively, there may be an issue in gdb itself, that causes certain code to rash. I have no idea, but again, it can't be fixed in Lazarus Best regards Martin Thank you for quick reply, I had no problems until last Friday (15/04/11) and now, also deactivating my Avira Antivir the problem persist. As printer I have an Epson PX720WD, but that never caused errors to gdb until today. Damn... :( Thanks! Kjow PS I noticed that when my program crashes (without gdb) Windows return this error: StackHash_fdb0 I don't know if it can help to define the situation... -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] SIGSEGV with gdb.exe
Hello Lazarus-List, Tuesday, April 19, 2011, 7:51:35 PM, you wrote: K I had no problems until last Friday (15/04/11) and now, also K deactivating my Avira Antivir the problem persist. K As printer I have an Epson PX720WD, but that never caused errors to K gdb until today. Deactivating Avira is not enougth. I had the same problem a few months ago, so uninstalled Avira and reinstalled it a few days later. Now everything is running fine. -- Best regards, José -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] SIGSEGV with gdb.exe
2011/4/19 José Mejuto joshy...@gmail.com: Deactivating Avira is not enougth. I had the same problem a few months ago, so uninstalled Avira and reinstalled it a few days later. Now everything is running fine. -- Best regards, José Thanks you, I will try to re-install it. Best Regards, Kjow -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TTimer on design time
2011/4/19 fluisgira...@gmail.com fluisgira...@gmail.com: I'm doing some some controls that uses TTimer. I don't know why, but from some time ago, TTimer don't fire the OnTimer procedure. I see in their source and is wrote: procedure TCustomTimer.UpdateTimer; begin KillTimer; if (FEnabled) and (FInterval 0) and (([CSDESIGNING,csLoading,csDestroying]*ComponentState=[])) and Assigned (FOnTimer) then begin //DebugLn(['TCustomTimer.UpdateTimer ',dbgsName(Self),' WidgetSet.CreateTimer']); FTimerHandle := WidgetSet.CreateTimer(FInterval, @Timer); if FTimerHandle=0 then begin FTimerHandle:=cIdNoTimer; raise EOutOfResources.Create(SNoTimers); end; if Assigned(OnStartTimer) then OnStartTimer(Self); end; end; So, what's the problem of fire OnTimer on Design time? Maybe I'm wrong, but at least version 0.9.29 fires this event at design time. I am not sure, but Assigned (FOnTimer) returns always false at design time. But this is from before 0.9.28, with the removal of JitForms, see http://wiki.lazarus.freepascal.org/Lazarus_0.9.28_release_notes#IDE_changes See also the code change in TCustomTimer.SetOnTimer. Vincent -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] screen.cursor := crHourglass and Linux
On Tue, 19 Apr 2011 08:25:49 +0200, Graeme Geldenhuys wrote: NOTE: The issue is only if you call DisplayCursor() without storing the result in a local variable. Good lord. That's a very interesting gotcha. I'm very appreciative that you've caught this. It seemed to work fine in the trivial example that I used to test it but then, it would seem that I didn't test it very well now did I. After putting a break-point in the Destroy event [after wasting 3 hours of my live trying find out how to write to the messages window - and failing] it does stop there right after the object is created. It would seem then that the only option is to create a variable where- ever you want to change the cursor for the extent of the method it is declared in ... bummer. Thanks, Dave PS, I'm using the git repository that you maintain - HUGE thanks for this. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] screen.cursor := crHourglass and Linux
On Tue, 19 Apr 2011 08:55:00 +0200, Graeme Geldenhuys wrote: FPC I believe frees the temporary interface reference immediately (or something undefined - I can't remember). This is exactly what I see happening in the testing I've just done. Plop a; Application.ProcessMessages; in Destroy right after changing the cursor back to what was stored as FOldCursor and it appears that the cursor does not change at all. -- Dave -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] screen.cursor := crHourglass and Linux
On Tue, 19 Apr 2011 08:25:49 +0200, Graeme Geldenhuys wrote: The issue is only if you call DisplayCursor() Actually, just for the record, it is the same for DisplayHourglass as well. -- Dave -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Missing FPG.CFG on Windows Installer from Snapshot
2011/4/19 Daniel Simoes de Ameida dopidan...@yahoo.com.br: Hello, Recently I downloded the file Lazarus-0.9.31-30355-fpc-2.5.1-20110418-win32.exe from snapshot FTP Server ftp://ftp.freepascal.org/pub/lazarus/snapshots/;, and noticed that the file fpc.cfg is not included along with the binaries of the FPC, which causes an error in the first execution of Lazarus. is this intentional ? (for some reason) or this file is really missing? This could be caused by the fact that fpc 2.5.1 was broken and did not compile some utility correctly for creating the fpc.cfg. Please try with tomorrows fpc 2.5.1 snapshot, which reportedly has a fixed fpc 2.5.1. Vincent -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] SIGSEGV with gdb.exe
On 19/04/2011 18:51, Kjow wrote: Thank you for quick reply, I had no problems until last Friday (15/04/11) and now, also deactivating my Avira Antivir the problem persist. As printer I have an Epson PX720WD, but that never caused errors to gdb until today. Damn... :( Open the Menu / View / Debug Windows / Debug output window (before running your app), then start it, and copy, zip, and send the content. Sometimes it gives a clue, sometimes not... -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Menu caption standards
On Tue, Apr 19, 2011 at 6:29 AM, José Mejuto joshy...@gmail.com wrote: Hello Lazarus-List, Tuesday, April 19, 2011, 8:35:01 AM, you wrote: GG That's not the case in Mozilla Thunderbird. Only modal dialogs have the GG ellipsis in the menu item. Examples: GG * 'Tools Preferences' does not. GG * 'File New Message' does not. GG * 'File Print' does because it is modal. GG etc... GG At least this is the case under Linux. The ... is added when the menu entry is an action verb and this action requires further configuration/data. Examples: Open: If the option just only open the file selector no ..., but if it opens a configuration window to select which open it should have it. Print: If it prints directly no dots, but if configuration is opened then ... Select All: If selects all text no ..., but if a dialog is opened to define what to select the elipsis must be added. Configure: The verb itself indicates a new dialog, so it will never present an ... Ellipsis indicates that a verb need more configuration to finish its action. 98% times the opened dialog is a modal dialog. -- Best regards, José Thanks a lot for all answers. Sorry for the noise, I stand corrected :-) Best regards, Flávio -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] screen.cursor := crHourglass and Linux
On 19 April 2011 20:45, DSK *** wrote: Good lord. That's a very interesting gotcha. I'm very appreciative that you've caught this. I caught it by trying to create an alternative debugger to gdb, but using the same trick as the cursor cursor code shown here. Unfortunately the FPC implementation cannot work like under Delphi. And creating instance variables all over the place is a real pain. :-( PS, I'm using the git repository that you maintain - HUGE thanks for this. My pleasure. -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://fpgui.sourceforge.net -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] CodeTools facility for documenting source code?
Martin schrieb: It would not show you a diff, of what was changed, but that can be found via svn and co (Maybe another field, indicating which revision a file had, at the time of documenting Git comes with a nice listing of a file's history, which ranges of lines have been changed, by whome etc., since the file was checked in. But of course git doesn't have a notion of procedures, nor has any other versioning system I know of. DoDi -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] reverse engineering tool wanted
Hi, thanks for the hints, I'll see what I can make out of it. Marc -- Marc Santhoff m.santh...@web.de -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] FPVectorial and TAChart
I have tried to use FPVectorial as TAChart back-end. So far, without success. I have a few questions/feature fequests, sorted approximately by decreasing importance: 1) How to draw a rectangle? 2) How to measure a text? 3) How to draw a polygon? 4) How to make FPVectorial output anything? It seems crash no matter what output format I try. 5) IMHO intruducing yet another color type is a bad idea -- FPVectorial is by design sacrificing efficiency in favor of generalization/extensibility, so I do not think a few extra bytes for color will matter. Please use TFPColor. 6) How to draw a radial pie? -- Alexander S. Klenin -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
