Re: [Lazarus] Memo for touchscreen
On 26/08/13 20:33, Koenraad Lelong wrote: procedure TForm1.LetterAButtonClick ( Sender: TObject ) ; var testcaretpos: Integer; begin testcaretpos := Memo1.SelStart; Memo1.Text := Copy(Memo1.Text, 1, testcaretpos) + 'A' + Copy(Memo1.Text, testcaretpos+1, MaxInt); Inc(testcaretpos); Memo1.SelStart := testcaretpos; Memo1.SetFocus; end; I made a few testprograms that work fine with your code. Now I made a full keyboard (Belgian AZERTY) and I'm having a problem I can't solve. The keyboard has some special characters : é§èçà and others. Those are not 1 byte characters. When I add them, they appear in the memo, but the next character seems to erase the memo. If I have already some lines in it, all disappears and the cursor is on the first line, fully left. I add the characters with a string : Kars:='§'; Memo1.Text := Copy(Memo1.Text, 1, testcaretpos) + Kars + Copy(Memo1.Text, testcaretpos+1, MaxInt); This happens because '§' and the other 'characters' are represented in UTF8 by more than one byte. I reproduced your problem and got around it by replacing Inc(testcaretpos); by Inc(testcaretpos, Length(Kars)); I don't know what consequences this might have for your navigation using the arrow keys, though: I haven't had much experience working with multibyte chars. Hope this helps, anyway. Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Memo for touchscreen
On 19/07/13 13:45, Koenraad Lelong wrote: Works fine, except for navigating up and down. Left and right is OK, I have to find out how to know on what line the cursor is, and then going to the next/previous line, if possible. Well I did say it was only to get you started :D Memo1.CursorPos.y will tell you on which line the cursor is. Here's a suggestion for navigating to the line above. I'll leave it to you to work out how to navigate to the line below. Malcolm == procedure TForm1.UpButtonClick ( Sender: TObject ) ; var newcaretPos: Integer; x: Integer; begin newcaretPos := 0; writeln(Memo1.CaretPos.Y, #32, Memo1.CaretPos.X); for x := 0 to Memo1.CaretPos.Y-2 do newcaretPos := newcaretPos + Length(Memo1.Lines[x]) + Length(LineEnding); if Length(Memo1.Lines[Memo1.CaretPos.Y-1]) Memo1.CaretPos.X then newcaretPos := newcaretPos + Length(Memo1.Lines[Memo1.CaretPos.Y-1]) + 1 else newcaretPos := newcaretpos + Memo1.CaretPos.X; Memo1.SelStart := newcaretPos; Memo1.SetFocus; end; -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Memo for touchscreen
On 18/07/13 12:54, Koenraad Lelong wrote: For a touchscreen-application (so no real keyboard) I need something like a memo. I first tried a memo, but how do I enter text at the caret ? And the caretpos is readonly. Next I tried synMemo, but if I move the caret, the caret disappears. How can I show it ? How do I send a BackSpace, Delete ? How do I hide the rightedge of the synMemo ? Just set it to the backgroundcolor ? Is there a better component ? TMemo should work - just use SelStart instead of CaretPos. Try the code below to get you started: Form with a Memo and 2 buttons, named LetterAButton and DeleteButton. Regards, Malcolm // procedure TForm1.LetterAButtonClick ( Sender: TObject ) ; var testcaretpos: Integer; begin testcaretpos := Memo1.SelStart; Memo1.Text := Copy(Memo1.Text, 1, testcaretpos) + 'A' + Copy(Memo1.Text, testcaretpos+1, MaxInt); Inc(testcaretpos); Memo1.SelStart := testcaretpos; Memo1.SetFocus; end; procedure TForm1.DeleteButtonClick ( Sender: TObject ) ; var testcaretpos: Integer; begin testcaretpos := Memo1.SelStart; Memo1.Text := Copy(Memo1.Text, 1, testcaretpos) + Copy(Memo1.Text, testcaretpos+2, MaxInt); Memo1.SelStart := testcaretpos; Memo1.SetFocus; end; -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] FirePOS (was: PDF in a Form)
On 13/07/13 19:06, Koenraad Lelong wrote: Op 13-07-13 18:40, Paul Breneman schreef: Thank you *very* much Koenraad for mentioning that this project uses fpGUI. I didn't find any docs at the site but I hope to study the code more ASAP. It is very interesting to see a fpGUI program set up for use with a touchscreen! I've started down that path myself. It seems to be setup to use Lazarus? I didn't think fpGUI support in Lazarus was very complete but maybe things have been improved recently? Paul, The code is managed with Lazarus, I think. The GUI is made with fpgui-designer or what's it called ? Koenraad is correct, the module that uses fpgui was designed using the uidesigner application that comes with fpgui. All the other coding was then done using Lazarus. Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] PDF in a Form
On 12/07/13 16:13, Reinier Olislagers wrote: On 12-7-2013 4:42, Edgar García wrote: I'm new to Lazarus and would like to know how I can display a PDF in a Form ... Have a look here: http://forum.lazarus.freepascal.org/index.php/topic,20221 Also for a simpler example and more up-to date version of the bindings mentioned in that thread: http://code.google.com/p/firepos/source/browse/#svn%2Ftrunk%2FmuPDFlaz Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Touchscreen
On 30/06/13 09:38, Koenraad Lelong wrote: I made some test-apps, and I think there will be problems with things like scrollbars. Is there a way to make those bigger ? Or is there a way to implement the swipe to move items in a list ? I decided to use fpgui for this; because it made it relatively easy to get into the GUI code and make the scrollbars wider. Another way which I found used by a number of applications (and also by making supermarket cashiers nervous by trying to look at their POS screens) is to hide the scrollbars and have two large buttons alongside, with up/down arrows or forward/back arrows. Regarding the swipe, I hadn't thought of it before, but it may be possible to use the mouse scroll events in a touchscreen application, to achieve the same effect. Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] terminal window not displayed in lazarus on kubuntu linux
On 18/01/13 11:25, Paul wrote: I am running kubuntu linux which runs KDE as the desktop and have installed lazarus 1,0,4, FPC version 2.6.0. x86_64-linux-gtk2. The problem: When I choose run, the program compiles just fine but the output is not displayed in a terminal window. This happens with all of my programs running on lazarus. I have the same lazarus, fpc and programs running on windows and on windows as soon as the program is compiled a terminal window pops up and displayed the results. From the 'Run' menu, select 'Run Parameters' and check 'Use Launching Application'. If Lazarus complains that it can't find the launching application, choose another from the combobox list -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Lazarus 1.0 Release
On 29/08/12 18:51, Mattias Gaertner wrote: The Lazarus team is glad to announce the release of: Lazarus 1.0 Congratulations and many thanks to everyone who has contributed to this great programming tool. Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Policy regarding HTML messages
On 26/08/12 00:29, Graeme Geldenhuys wrote: * Even setting your email client (I use Mozilla Thunderbird) to prefer plain text in a multi-part message, the HTML part shows up as an attachment. A huge annoyance for me when I search for important message that had valid (read real) attachments. I have no argument with your other points, Graeme, but on my Thunderbird setup (10.0.2 on Debian) the only attachments that appear are genuine ones, suggesting that it can be set up to ignore HTML attachments - I've no idea how, though, and I certainly can't recall setting it up that way. Anyway, you will no doubt be aware that I was blissfully ignorant of the number of HTML messages posted, although having now checked my settings it appears that I was one of the guilty. This should no longer be the case :) Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] FPC/Lazarus based backup system
On 21/08/11 18:30, ik wrote: Does any of you know of a good backup system written using FPC/Lazarus, working inside Linux and open source ? Probably not exactly what you're looking for, but Dargui ( http://dargui.sourceforge.net/ ) is a front end for the Dar archiving utility and is developed using Lazarus. Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Using Visual C++ .libs?
On 01/06/11 13:13, Prado, Renato (R.P.) wrote: You'll have to implement an wrapper, that allows to access the objects and their methods by mere (non-OO) subroutines. That wrapper will have to be written in the language of the library (here: C++), so that it can use the objects provided by the library, and can call their methods. The headers of the wrapper have to be converted into a unit (library?), By wrapper you mean generating a unit translating the interface from the .h right? After I got the unit, how can I link the .lib into my project? I would not like to create a DLL in Visual C++ with the .lib inside just to be able to use the .lib functions within Lazarus. I can recommend the guide to using C in Freepascal projects at ftp://ftp.freepascal.org/pub/fpc/docs-pdf/CinFreePascal.pdf I used it as a manual when writing a simple interface to the tesseract OCR library, which is also a C++ library. Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Terminal in Lazarus
On 30/04/11 21:37, Geoffray Levasseur wrote: Le dimanche 17 avril 2011 23:43:01, Malcolm Poole a écrit : It is possible to embed a libvte terminal in a lazarus form when using GTK and control it from the application, although I'm not sure if it's possible to do everything that you want. Pascal bindings for libvte and a test application can be found at http://dargui.svn.sourceforge.net/viewvc/dargui/testvte/ I'm trying to use your VTE implementation (with the help of the demo app) and I'm facing a problem that I can't understand: impossible to get the shell working even if the VTE widget is appearing correctly and no errors happens according to my log file. Here is the source code for the application I'm trying to create (with svn): svn://svn.tuxfamily.org/svnroot/geofperspage/gppsvn/trunk/lfs-manager Can someone take a look and tell me what can be wrong (I've checked everything without success). I'm not clear what you're trying to do, as I cannot load your project fully or compile it due to the absence of cmdbox, LCLBase and FCL packages on my system, but you need to remove line 206 Terminal.Execute; from fMain. Your GTKTerm should then work as a normal embedded shell. The command 'Execute' is used when the terminal has been created with a command as parameter - see explanatory notes at line 41 of VTETerminal.pas I'm not sure if it is possible to execute more than one command remotely on the same terminal - closer examination of the GTK VTETerminal documentation would probably provide this information. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Terminal in Lazarus
On 16/04/11 11:39, Geoffray Levasseur wrote: Hi, I'm trying to create a build manager for own compiled package. The project is in a good way but the next step is a bit hard for me. To complete the software, I need to have an integrated terminal. Here are the constraint: 1 - I need to be able to use environment variable, so once the terminal is open it will use the same shell until the job is complete. 2 - Each command (sometimes complex ones, e.g. for and if statement) will be added line by line (from a TString) at runtime and each time a command is complete I need to now its exit code. 3 - As this will be most of the time bash (or zsh if the user chose this), the shell can change at runtime with perl or python. I still must be able to interact with those shell. 4 - The terminal will be embedded in a Lazarus form (do not matter if it's created at runtime). 5 - Ideally all the output can be logged in a text file. In fact the best will be something like an xterm clone but in pascal... Any ideas on how to do this? It is possible to embed a libvte terminal in a lazarus form when using GTK and control it from the application, although I'm not sure if it's possible to do everything that you want. Pascal bindings for libvte and a test application can be found at http://dargui.svn.sourceforge.net/viewvc/dargui/testvte/ Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] How to minimize/restore lazarus (Ubuntu)?
On 12/04/11 15:22, ik wrote: 2011/4/11 Flávio Etrusco flavio.etru...@gmail.com mailto:flavio.etru...@gmail.com (...) When doing this I had to look at files from the test application and then code back and forth. But it was very annoying that it seems not to be possible to minimize Lazarus and then clicking the Lazarus icon on the task bar to bring it all back up. There are a whole bunch of buttons on the task bar all having the Lazarus icon and when I click them I only get a single window of the IDE visible each time. So I have to click them in turn one by one. Why is this so (at least in Ubuntu 10)? These are the default behaviors of the platforms. Unfortunately there's no Window Manager for Linux/X that can automatically group windows of a process :-( Sure you have. I have it on my KDE (that I do not use it, but it's there), and I'm sure others also have it. On Mandriva 2010.2 using KDE, if i minimize the principal Lazarus IDE menu window, all the other windows are minimized too. If I then restore the main window, all the other windows are also restored. I didn't do anything to set this up - it seems to be the default on this system and version (Lazarus SVN 27340) -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Where is fp ide located on my Mint 10 Linux system (ubuntu based)?
On 29/12/10 19:08, Peter Williams wrote: If those binaries are in your path then `which fp` and `which fpc` should say where the programs are installed/located. I don't know where they are installed/located. The software manager application does not tell me. It simply installs them. Assuming that your software manager is Synaptic and that you used it to install fp: 1. Open Synaptic 2. use the 'Search' option - look for fp- because fpc on debian/ubuntu is contained in a number of packages eg fp-ide, fp-units-gtk, etc 3. highlight the fp-ide unit by clicking on it, then click on the 'Properties' button in the toolbar. A window will appear with a number of tabs, one of which is 'Installed files'. _If_ the package has been installed this tab will provide a list of all files installed by the package and their location. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Serial communication??
On 01/10/10 19:53, Bo Berglund wrote: The problem is that I have no clue as to *where* Lazarus is installed. I used the Synaptic Package Manager and let it find and install Lazarus for me (on Ubuntu 10.04-2). I was not asked where it should go, it just installed And being a Linux newbie (I installed this Ubuntu machine last Sunday) I don't know where programs go in the confusing file system. Probably a silly and stupid question, but how can I find the install directory of any program in Linux? Reopen the Synaptic package manager and highlight Lazarus. Then click on Properties and you will find a list of the files that were installed and their location. If only you could do that with a Windows installation file ;-) Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Commercial projects
Ger Remmers wrote: The management is asking for examples of commercial projects currently being developed or in use. Can anyone provide me with links? I don't know if Lazarus is used in developing the Weather Display app (http://www.weather-display.com/index.php) but the error messages on their forum at http://www.weather-watch.com/smf/index.php?topic=41504.msg340979 indicate that it uses freepascal. A selection of applications developed using Lazarus can be found at http://wiki.freepascal.org/Lazarus_Application_Gallery and there are some others among the projects at http://wiki.freepascal.org/Projects_using_Lazarus, for example Tony Maro's Truckbites (http://www.truckbites.com) http://www.truckbites.com Malcolm -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
