Re: [Gambas-user] usage of too much GOTO can be bad pracitce ?
I don't believe the use of GOTO is bad practice in terms of the efficiency and performance of the program, but its convenience often leads to lazy "spaghetti" code design which, in turn, usually leads to bugs. The use of RETURN is a much tidier way of breaking out of a SUB or FUNCTION, which has the effect of "GOTO END OF SUB/FUNCTION". It will then take you to the next line in the SUB/FUNCTION which made the call. It is always possible to write and position IF, SWITCH statements or loops in a way to avoid the need for a GOTO statement. The code following the corresponding label could, for example, be contained in a separate SUB or FUNCTION, which makes the code tidier and makes it easily reusable within the program. I certainly would not say that programmer who uses lots of GOTO statements is a bad programmer (as long as the program works correctly and efficiently) but I believe that few developers would choose to maintain code written by somebody else containing lots of GOTO statements. It's important to stress that this principle is not unique to Gambas. Nearly all programming languages support the concept of the "GOTO" (even C), and VB actively encourages it in its error handling, which is why Gambas is so superior. Nige -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Control Modification Suggestion
Hi In my days as a VB developer I found a feature of the combo control very useful, which perhaps could be considered for Gambas. Each item in the list has a display value (text), and an integer index to describe its position in the list. This is the same as the Gambas combo control. However the VB control also has a "key" property which was very useful in applications where the display value had to be translated to an integer ID to be saved to a database. In my Gambas applications I achieve the same result by declaring a dynamic integer array and updating it in parallel with the combo control. It would save a fair bit of coding to simply have a combo.current.key property. Sadly I think the standard of my coding is now too rusty to do an efficient job of creating the control myself. Nige -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Console Window
Hi I have recently upgraded to 3.9.2 from the Linux Mint 17.3 repositories. Whenever I open an existing project, the console window "floats" (i.e not docked) above the rest of the IDE. Is there any way I can stop this from happening? Thanks Nige -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Slow Gambas Startup
Hi I have Gambas 3.8.4 installed on 3 laptops, in each case running Mint 17.3 Mate. While each is a different hardware spec they are similar. Two have SSDs and one a spinning HD. My problem is that on 2 machines Gambas starts up in a few seconds. On the 3rd it takes more than a minute. Once it is running it works well - it's purely the startup which is very slow. All other applications installed on this machine (SSD) seem to start normally. I have reinstalled Gambas but it makes no difference. Does Gambas perform any disk or file checks during startup which might explain this odd behaviour? Thanks Nige -- ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Slow Gambas Startup
Hi I have Gambas 3.8.4 installed on 3 laptops, in each case running Mint 17.3 Mate. While each is a different hardware spec they are similar. Two have SSDs and one a spinning HD. My problem is that on 2 machines Gambas starts up in a few seconds. On the 3rd it takes more than a minute. Once it is running it works well - it's purely the startup which is very slow. All other applications installed on this machine (SSD) seem to start normally. I have reinstalled Gambas but it makes no difference. Does Gambas perform any disk or file checks during startup which might explain this odd behaviour? Thanks Nige -- ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Slow Gambas Startup
Hi I have Gambas 3.8.4 installed on 3 laptops, in each case running Mint 17.3 Mate. While each is a different hardware spec they are similar. Two have SSDs and one a spinning HD. My problem is that on 2 machines Gambas starts up in a few seconds. On the 3rd it takes more than a minute. Once it is running it works well - it's purely the startup which is very slow. All other applications installed on this machine (SSD) seem to start normally. I have reinstalled Gambas but it makes no difference. Does Gambas perform any disk or file checks during startup which might explain this odd behaviour? Thanks Nige -- ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] ImageView Content Scaling
Hi
I need to display images on a form with some descriptive text.
The form contains an imageview control sized at 400 x 300 px. The images it
will display will be sized at 1600 x 1200, which is 4x the size of the
imageview.
I am loading the image using the following code:
===
Dim myImg as Image
myImg = image.load("/path/to/image.jpg")
imageView1.image = myImg
===
This displays the image full size within the control, with horizontal and
vertical scroll bars.
I would like to display the full image within the imageview control without any
need to scroll e.g at 0.25 original size.
Using imageView1.Zoomfit() reduces the image to a very small thumbnail - too
small for my requirements.
Is there any way to scale the image to a user-defined scale factor?
Thanks
Nige
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Re: [Gambas-user] Seeking a bit of advice here (Correction)
Apologies. I stated earlier that I am using Mint on my RPi. I meant, of course, Ubuntu MATE. Like many people I tend to naturally associate the MATE desktop with Linux Mint. However, Ubuntu MATE is another excellent option for driving your 32 bit servers. You would still need to install openSSH server and might similarly choose to upgrade Gambas from the default version 3.5.4. The default version of Postgresql is 9.4. Nige From: nigelver...@hotmail.com To: gambas-user@lists.sourceforge.net Subject: Re: [Gambas-user] Seeking a bit of advice here. Date: Mon, 16 May 2016 08:37:07 +0100 Hi Linux Mint 17.3 would satisfy all your requirements. I run a number of small servers, including an RPi, on Mint and they are simply trouble-free. I am not aware of any plans to end 32-bit support. The current version of Postgres is 9.3.12. You would need to install openssh-server (client comes as part of the build), and you would probably want to upgrade the version of Gambas from a PPA, as the standard is currently 3.1.1. I use 3.8.1 and there are no problems at all. There is a choice of desktops - Cinnamon, MATE, KDE, Xfce. If you are running your devices as servers you could configure them to boot to command line, so the "weight" of the desktop is not really an issue. Just go for whichever you prefer and fire it up only when you need it. I would estimate that after the basic installation, all your configuration, installation and upgrade tasks could be achieved in about 10-15 minutes per device. Nige -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Seeking a bit of advice here.
Hi Linux Mint 17.3 would satisfy all your requirements. I run a number of small servers, including an RPi, on Mint and they are simply trouble-free. I am not aware of any plans to end 32-bit support. The current version of Postgres is 9.3.12. You would need to install openssh-server (client comes as part of the build), and you would probably want to upgrade the version of Gambas from a PPA, as the standard is currently 3.1.1. I use 3.8.1 and there are no problems at all. There is a choice of desktops - Cinnamon, MATE, KDE, Xfce. If you are running your devices as servers you could configure them to boot to command line, so the "weight" of the desktop is not really an issue. Just go for whichever you prefer and fire it up only when you need it. I would estimate that after the basic installation, all your configuration, installation and upgrade tasks could be achieved in about 10-15 minutes per device. Nige -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Gambas on Pi3
Hi I have ordered a Raspberry Pi3. I have installed Gambas on my Pi2 (Ubuntu Mate) and it works OK, if a bit slow. The advice I have read about exploiting the superior performance of the Pi3 is that applications should be designed to utilise all 4 processor cores. Is there any way to ensure that the Gambas IDE, or an application written in Gambas, will utilise all available processors? Thanks Nige -- Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785111&iu=/4140 ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Form Positioning Problem with 3.8.2
Hi My installation of 3.8.1, running on Mint 17.2, was upgraded to 3.8.2 yesterday via the Launchpad PPA. Since then I have been experiencing problems with form placement. - Where FormA opens FormB using formB.showmodal(), the subordinate form is behind the parent. - FormB is smaller than FormA, and with 3.8.1 was initially centralised above FormA i.e FormB.x = FormA.x + ((FormA.width - FormB.width)/2) FormB.y = FormA.y + ((FormA.height - FormB.height)/2) With 3.8.2 the initial position of FormB takes no account of the code in form_open() regardless of what values I assign to FormB.x and FormB.y. I have reverted to 3.8.1 and everything works fine again. Has anybody else noticed this strange behaviour? I am using QT4 controls. Regards Nige -- ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Installing 3.8 On Debian
I have discovered a "cheat" method to install Gambas 3.8 on Debian without the need for compilation. Specifically I am running LMDE 2 but the principle should work on any Debian-based system. Dependencies: Access to an Ubuntu or Linux Mint computer onto which 3.8 has been installed from the Gambas PPA. Method: On the source (Ubuntu/Mint) computer and go to /var/cache/apt. Copy all the Gambas 3.8 installation (.deb) files to an empty folder on the target (Debian) computer. On the target computer open a terminal window and navigate to the folder containing the .deb files. Type "sudo dpkg -i *.deb". This will begin the installation. Some "missing object" errors will be listed in the terminal window, but let the process run to completion. Open the Synaptic package manager. This will list some broken packages. In my case there were 6. In Synaptic use the "Fix Broken Packages" item on the "Edit" menu. This will identify the missing objects which need to be installed. These should be libraries. Click the "Apply" button on the Synaptic toolbar. The missing objects will be downloaded and installed. You can now go ahead and use Gambas 3.8. Although this is not an officially approved method, Gambas 3.8 appears to run faultlessly on LMDE 2. The version available in the default repository is 3.5, so it is worth doing to get all the latest improved feature. Regards Nige -- ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Clipboard Persistence
Hi If often need to copy text from a form in a Gambas application and paste it into a non-Gambas application - typically LibreOffice Writer. While the Gambas app remains open there is no problem. However, once I close the Gambas app the "Paste" option on the main or context menu of the target is greyed out. This indicates that the clipboard is empty. This is not specific to LibreOffice. It is the same with any target application. Is there any way I can ensure that text remains in the clipboard after the Gambas application has been closed? Thanks Nige -- ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Buffer Monitoring
Hi I'm planning to write an application in Gambas to support a study of the efficiency of various user interface designs. To do that I will need to monitor mouse clicks in conjunction with the mouse position, and keyboard inputs. This is, of course, simple within a Gambas application but what about when another application has focus? Is there any way to have a Gambas application running minimised but monitoring the keyboard buffer and mouse events regardless of which application has focus? Thanks Nige -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Interaction With Command Shell
> Date: Mon, 16 Mar 2015 16:57:05 +0100 > From: Beno?t Minisini > Subject: Re: [Gambas-user] Interaction With Command Shell > To: mailing list for gambas users > Message-ID: <5506fd51.80...@users.sourceforge.net> > Content-Type: text/plain; charset=windows-1252; format=flowed > > Le 16/03/2015 16:31, Tobias Boege a ?crit : > > On Mon, 16 Mar 2015, Nigel Verity wrote: > >> Hi > >> > >> I would welcome some advice about interacting with the Linux command shell > >> from within a Gambas application. > >> > >> The requirement is to create a connection with a remote server using > >> SSHFS. The general syntax for this command is: > >> > >> sshfs username@remote-server:/foldername /local-mount-folder > >> > >> There is no option in the SSHFS command to include the user's password on > >> the remote server. When running from a command prompt, once the sshfs > >> command is accepted you are then prompted to enter the password. > >> > >> Is there any way, after executing the SSHFS command (using SHELL, > >> presumably) to monitor for the password prompt and then send the password > >> to the command shell? > >> > >> My aim is to create a dialog in which the user provides the server name, > >> username and password and have Gambas do the rest to create the SSHFS > >> connection. > >> > > > > I have once tried that, specifically with sshfs, too, and failed miserably. > > Your zeroth approximation should be to factor out Gambas and write a shell > > script which can pass the password to sshfs. If you've got that, you almost > > have the solution in Gambas. > > > > There is a program "expect" which was designed for specifically the purpose > > of waiting on a program's output for a specific pattern and then sending a > > given string to its input (i.e. to automate interactive programs). But it > > seems sshfs is putting extra effort into preventing this automation. > > > > I ended up creating a private/public key pair and have the server work with > > that so that I can login using these keys[0]. Maybe this is an option for > > you, too? > > > > If you can trick sshfs into being automated via expect or some other means, > > please let me know :-) > > > > Regards, > > Tobi > > > > [0] https://help.ubuntu.com/community/SSH/OpenSSH/Keys > > > > I'm automating scp and ssh daily with Gambas, by detecting when the > password prompt appears (and the ssh key confirmation question too). > > It cannot be 100% reliable, because any other program can print > "password:" on its standard output, and apparently there is no way to > know that a program is waiting for input. > > But in practise it works. > > If there is no clean way to do that, maybe I should make a component > with that, even it's some quick & dirty hack? > > -- > Beno?t Minisini Hi Benoit I suspect there could be good security reasons why the author(s) of SSHFS keep the password entry separate from the main command string. However, this type of issue cannot be unique to SSHFS, so a Gambas component which can simulate the user interacting with a terminal could have a lot of uses. Handling unexpected error messages, which might appear in a terminal window when you are expecting a prompt of some kind, could make it complicated, though. Nige -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Interaction With Command Shell
Hi I would welcome some advice about interacting with the Linux command shell from within a Gambas application. The requirement is to create a connection with a remote server using SSHFS. The general syntax for this command is: sshfs username@remote-server:/foldername /local-mount-folder There is no option in the SSHFS command to include the user's password on the remote server. When running from a command prompt, once the sshfs command is accepted you are then prompted to enter the password. Is there any way, after executing the SSHFS command (using SHELL, presumably) to monitor for the password prompt and then send the password to the command shell? My aim is to create a dialog in which the user provides the server name, username and password and have Gambas do the rest to create the SSHFS connection. Thanks Nige -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] JSON Parsing
Hi I would be interested to know whether any Gambas users have already created a parser for JSON format data, and would be willing to share the relevant code. I foresee a need to import data from JSON files over the coming months. It would save some time if I could avoid having to "reinvent the wheel". Regards Nige -- New Year. New Location. New Benefits. New Data Center in Ashburn, VA. GigeNET is offering a free month of service with a new server in Ashburn. Choose from 2 high performing configs, both with 100TB of bandwidth. Higher redundancy.Lower latency.Increased capacity.Completely compliant. http://p.sf.net/sfu/gigenet ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Best Programming Practice
I think that the issue of best programming practice and how many forms are used to accomplish a task are two separate issues. Sharing common code between forms, rather than having multiple instances of procedures and functions, is always good practice as it makes maintenance and fault-finding much simpler. How you divide a task across forms depends largely upon the workflow. However, there are some factors which really just boil down to the preferences of the users. Some people like to select records for maintenance from within the maintenance form itself, while others prefer to select data from a separate popup. You may not be able to please everybody in your UI design decisions, but you should seek to satisfy the majority of users. The tab order of fields can be important. For example highly repetitive tasks, such as entering client information, will often be performed without the experienced user actually looking at the screen; just using the tab key to move between fields. If the tab order doesn't follow the way users naturally work this can only lead to problems, even if their preferred order may seem illogical to you as the developer. In my experience, if your application is only going to have a very small number of users then you can probably educate them to accept a user interface (both the layout and the way you decompose the task into forms) which is both logical and easy for you to maintain. On the other hand, if you have a large number of non-technical users you would be better advised to give them what they say they want, within the constraints of the application's functional requirements, and just make sure that you apply best coding practice and any other approaches to development which make the maintenance as easy as possible. If you decompose a task into multiple forms consider very carefully the use of the form's "modal" property. If formA spawns formB non-modally, and there are dependencies between them in both directions, the coding required to keep both in sync can become very complex. However, if formB is modal then you only have to refresh the data on formA when you save and/or close formB. It makes life somewhat simpler. One more thing.. Document the application well, making sure that you highlight the reasons behind any process flow or task decomposition which you would have implemented differently given a completely free choice. Otherwise, subsequent developers may just assume that you are not a very good programmer and implement "improvements" which only serve to upset the the users. Nige -- "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] DataControl Validation
Hi I have posted a couple of questions recently on using the data-bound controls. My long-term aim is to design some template applications, combining Gambas3 with Sqlite, to fill the role of MS Access on Linux for creating "quick and simple" databases. LibreOffice Base is such a poor tool for developing database applications, I am convinced that Gambas provides a much more effective platform. The .validate() procedure on the datacontrol enables values to be tested and modified before saving. If the validation rules require that the record save be abandoned, this is achieved very simply using the STOP EVENT statement. However, this causes the display of a message box showing "Invalid value". Is it possible to suppress this message box or to modify its text? I am using 3.1.1 on Debian. Thanks Nige -- ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Gambas Datasource Control
Hi Benoit I have tested the .validate() event of the datacontrol. It meets my requirement to test and modify the data entered in the control but is there any way to abandon the save entirely if certain criteria are not met? Thanks Nige Date: Fri, 28 Mar 2014 16:41:07 +0100 From: Beno?t Minisini Subject: Re: [Gambas-user] Gambas Datasource Control To: mailing list for gambas users Message-ID: <53359813.60...@users.sourceforge.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Le 28/03/2014 14:55, Nigel Verity a ?crit : > Hi > > I have used Gambas very successfully in conjunction with a Sqlite > database, but I have written my own procedures to exchange data > between the controls and the database. This provides great > flexibility but does require quite a lot of code. > > I am now experimenting with the use of the data-bound controls. I > need to perform some validation before a record is saved, and require > the option to abort the save entirely. The documentation describes a > "BeforeSave" event for the datasource control which is just what I > need. However, I can find no way of trapping this event as the IDE > does not appear to provide the option of generating the event > handler. I have tried inserting the appropriate code manually but it > has no effect. > > Grateful for any advice. > > Thanks > > Nige At the moment the BeforeSave() event handler cannot stop the save process. I can add that in the next version (i.e. if you call STOP EVENT during BeforeSave(), no save is performed) but not for the current version. What sort of validation do you need? Maybe there is a workaround: for example, the DataControl has a "Validate" event that allows to individually validate the data entered by the user. -- Beno?t Minisini -- ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Gambas Datasource Control
Hi I have used Gambas very successfully in conjunction with a Sqlite database, but I have written my own procedures to exchange data between the controls and the database. This provides great flexibility but does require quite a lot of code. I am now experimenting with the use of the data-bound controls. I need to perform some validation before a record is saved, and require the option to abort the save entirely. The documentation describes a "BeforeSave" event for the datasource control which is just what I need. However, I can find no way of trapping this event as the IDE does not appear to provide the option of generating the event handler. I have tried inserting the appropriate code manually but it has no effect. Grateful for any advice. Thanks Nige -- ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] SMTP Component
Hi I am planning to use the SMTP component in a new Gambas project. I am happy with the basic functionality but the documentation states that if the "Host" property is left blank the messages are sent to "localhost" instead of a designated SMTP server. Does anybody know where on my local machine those messages will be saved? Is the localhost option just intended to be used for testing, or does it act as an "outbox" meaning the messages can be subsequently forwarded to an SMTP server? Thanks Nige -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Work with Open Office from Gambas
Hi Alexey It depends what you want to do. You can open the OpenOffice/LibreOffice GUI using the Shell command with the appropriate parameter for the module you wish to use e.g: libreoffice4.1 --writer You can also call some OO/LO functions using the Shell command, which do not open the OO/LO user interface. For example you can convert document formats. The OO/LO documentation will explain the options and the syntax - use Google to find. You can create template documents using OO/LO. If you save them in .fodt format (a derivative of XML) your Gambas program can scan the template for identifiers of your choice and then make substitutions. The result is a very professional-looking document, generated dynamically by Gambas. Hope this is helpful. Nige -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] TextArea Control - Tab Key
Hi I have some text area controls which I would like to behave like text boxes, i.e hitting the tab key moves the cursor to the next control. I can write some long-hand code to monitor for chr(9) on the "keypress" event, but is there a tidier way of achieving this - an obscure property perhaps? Thanks Nige -- Android apps run on BlackBerry 10 Introducing the new BlackBerry 10.2.1 Runtime for Android apps. Now with support for Jelly Bean, Bluetooth, Mapview and more. Get your Android app in front of a whole new audience. Start now. http://pubads.g.doubleclick.net/gampad/clk?id=124407151&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] TabStrip Control
Hi I've just started using the TabStrip control in a project for the first time. I can't find a method for making a particular tab current. Any ideas, please? Thanks Nige -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Compiling A Gambas Project
Hi Tobi Perhaps if I describe a scenario I encountered yesterday you can advise on whether the behaviour should be expected or whether there is actually a bug. I always structure my projects using the default approach so that each form has its associated .class file in which the form-specific code resides. However, user-defined functions which may be used on multiple forms I place in a .module file, usually called mdlShared. My problem yesterday involved calls to mdlShared.setFontAttributes(). After a bit of redesigning I replaced this function with mdlShared.setFont(). Unfortunately I forgot to remove several calls to .setFontAttributes() even though I had removed the function itself. These calls were not detected by "Compile All" but resulted in runtime errors. Regards Nige -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Compiling a Gambas Project
Hi When I perform a "Compile" or "Compile All" operation from the Gambas menu any language syntax errors seem to be identified correctly. The same applies to declaration errors. However, I have noticed that calls to non-existant functions (as a result of spelling errors) are often not flagged. As a result the code passes the compilation checks and I can create an executable. The coding problems do, however, result in runtime errors. Is there a setting to ensure that compilation identifies ALL problems, or is it just a shortcoming with the compile process? Regards Nige -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] A little article on Gambas on Phoronix (ISS Boss)
Dear All It's been interesting to read about perceptions that BASIC is a "toy" programming language, not to be used for serious projects. I have to reject this notion. There are some very low level system programming tasks for which BASIC may not be the best choice but, in principle, like any other programming language, BASIC is as good as the programmer using it. I started my programming in the 1980s using FORTRAN 77. I wrote some dreadful "spaghetti" code in those days but, as my experience grew, so did the structure and quality of my programs. After a brief period using CORAL 66 I moved onto using COBOL. If ever there were a language which looks like a "toy" then it is COBOL, using words instead of operator symbols e.g "ADD X TO Y GIVING Z" instead of x + y = z. Deeper reflection shows that this makes the language far more self-documenting than any other. I don't know about now, but for a long time most of the world's banking system was built using COBOL so it must have had something going for it. Since those days I've used C, C++, Pascal and flavours of BASIC, such as VB and Gambas. In all of those languages it's possible, in fact easy, to write clear, well-structured, easily-maintainable code. It's a failure of the programmer when the logic of a program jumps about all over the place; not a weakness in the programming language. Even C supports "goto" commands and labels. One thing I have observed over the years is that a lot of programmers like to create the impression to non-developers that coding is intrinsically difficult. The syntax of C and C++ in particular helps to perpetuate this myth. Even fairly experienced developers can be a little awe-struck by uncommented code which embeds several levels of nested functions in a single line. It would probably be quite comprehensible if divided over multiple lines with consistent indentation and a few comments. I think that the simpler the code is to write and understand, the better the overall quality is likely to be. The BASIC syntax has many advantages in this respect, especially for anybody with a knowledge of English. It is noteworthy that Gambas and VB have been dismissed as if they are not "proper" development tools. Surely their efficiency for developing applications sets them apart from every other tool. Using either Gambas or VB, it would take less than 60 seconds for anybody with a little experience to start a new project and create a form containing a button which, when clicked, displays a message. I would challenge anybody to do that using any other tools or programming languages. When all programs ran in text mode, managing the user interface constituted a far smaller proportion of the code. When Windows and the Mac introduced the GUI to everyday applications that all changed and managing the user interface became by far the largest part of most programs. Tools which simplified that aspect of application development were desperately needed and VB satisfied that requirement, taking the market by storm. As time has gone by I have detected a growing opinion amongst developers that tools such as VB make programming too easy, and there been a trend back towards complexity. I accept that changing fashions in user interface design can require greater control of what appears on the screen, such as rounded corners, circular windows and so on. That's fair enough, but there is no reason why those additional functions can't be delivered by building on the relative simplicity of user-friendly tools and easy-to-understand code syntax. Maybe some programmers see simple development tools as a threat. They are not. A chisel is a simple tool to use but you need a skilled craftsman to get the best out of it. In much the same way there will always be a need for skilled programmers to develop applications of any real importance. I have experimented with Lazarus. This is another excellent development tool which has the advantage over Gambas of generating native executables and working cross-platform. Lazarus has a good form builder but it is hampered by being based on Pascal and exposing far more of its underlying complexity to the programmer. This provides greater scope for structural and coding errors and makes for more difficult debugging. I still have a need to develop database applications on Windows from time to time. I use Access/VBA as my tool of choice, but I have noted how Microsoft has made the user interface more complex in recent versions, for no real functional gain. I suspect this is a move to make it look like a more serious tool. When I get back to developing on Linux using Gambas it is like a load being lifted from my shoulders. Gambas is a tool which every serious developer should examine closely. Its biggest challenge is the mistaken notion which equates professionalism and functionality with complexity. Nige -
[Gambas-user] ColumnView Sorting
Hi I am using a ColumnView control with 5 columns. Each column contains text (single-word strings) The control has a ".Sorted" property. I assume that this sorts the control according to the contents of the left-most column. Is there a way to sort the control by the contents of, say, Column 3 in the program code? Thanks Nige -- DreamFactory - Open Source REST & JSON Services for HTML5 & Native Apps OAuth, Users, Roles, SQL, NoSQL, BLOB Storage and External API Access Free app hosting. Or install the open source package on any LAMP server. Sign up and see examples for AngularJS, jQuery, Sencha Touch and Native! http://pubads.g.doubleclick.net/gampad/clk?id=63469471&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Future Of Gambas (Re: Baze Project)
Hi Markus et al One of the big attractions of MS Access is that all the data, forms and queries can be delivered to the user in a single file. This is very attractive when it comes to distributing standalone databases to be run on the desktop. LibreOffice Base, at its simplest level, seeks to do the same thing, but it is seriously hampered by having such a rudimentary form designer, and its implemention of the Basic programming language is more difficult to use than VBA. When you add to that the default HSQL database engine, which is both slow and inefficient, you have a tool which I cannot believe is widely used for anything other than local "quick and dirty" databases, where performance and appearance are of little importance. Of course, both Access and Base can be used for far more sophisticated purposes. Through the use of ODBC Access can connect to a number of different types of database and, combined with the use of local tables, can extend the core dataset. Again, Base can do much the same, but it remains hampered by having such an unsophisticated form designer and the tedious programming language. With Gambas it is not possible to achieve the "single file" approach to database application delivery that you can with Access or Base (well, I've not found a way), but it is still very simple to deliver a Gambas executable (assuming the runtime environment has already been installed on the target) and an associated SQLite database in just 2 files. This makes distribution by email, subject to size constraints, a practical proposition in way that is not possible if the data is hosted in a server-based architecture. Developing a database front-end in Gambas is more like developing such an application in VB than Access, as you still need to create the links between the controls on the form and the database which, of course, is done for you automatically in Access. For all that, though, it is very easy whether you use the Gambas databound controls or prefer to write a few generic read/write procedures long-hand. >From the description of your Baze project in Google Code, rather than >duplicating an existing application I believe that you will end up with a high >performance tool which achieves the flexibility aspirations of Base combined >with the ability to create a sophisticated, professional-looking user >interface. By including support for NoSQL you will be ahead of the game. It's an ambitious goal, but I do think that as long as ease of use and implementation are always at the forefront of the design, then it will eventually find an enthusiastic user base. I wish you every success. Nige -- Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Gambas Future or what kind of Gambas we want
Hi I'm sure that we all acknowledge that Gambas plays much the same role on Linux that VB plays on Windows. I used to be a VB developer, but I'd far sooner work with Gambas any day, even if it could be run on Windows. That said, the fact is that VB does exist and, whatever we like to think, it is a good tool with a huge and enthusiastic user base. At best, fully migrating Gambas to Windows would put it in a similar position to GIMP on Windows. At a functional level GIMP stands up well against Photoshop for most users. Despite that people still pay good money for Photoshop because it is the "go to" image editor in most people's minds. In the same way, no matter how good Gambas is most people looking for a RAD tool on Windows would automatically opt for VB. I have played around with Lazarus, which is a visual development environment based on FreePascal and generates native executables. It's harder to use than Gambas, but still a lot easier than Visual C++. It already has the advantage that there are versions for Linux, Windows and OSX, so you can develop a project on one OS and just recompile it to run on the others. On that basis it beats every other development tool hands down for portability and should dominate the market. For all that, most developers regardless of their OS, have probably never heard of it. To my mind Gambas has been developed to satisfy a requirement on Linux and it does that brilliantly well. There's nothing that comes close in terms of functionality vs ease-of-use. My view is that just because something CAN be done doesn't mean that it MUST be done. The notion that Gambas, or any other FLOSS project, must strive for maximum market share is more than a nod towards the stance of commercial proprietary software which many of us strive to avoid. The one thing I would like to see for Gambas is not so much functionality as improved awareness of one of its many capabilities. By combining Gambas with SQLite you have more or less a complete analog for MS Access. When I first came to Linux I struggled to find anything close to an Access equivalent. LibreOffice Base is far too complicated and slow. I'm sure there are many Linux users who would dearly love to have a powerful desktop database tool but don't realise that a solution is so readily available. Regards Nige -- Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Code Editor - Cursor Tracking Problem
I took the advice of MinnesotaJon and changed the "Hinting" setting. The problem was occuring on both my laptops. One was set to "None" and the other to "Slight". To maximise the effect of change I set both to "Full" and, in each case, the tracking problem has been resolved. Thanks Nige -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Code Editor - Cursor Tracking Problem
Hi I run Linux Mint Debian Edition. The latest version of Gambas3 in the Debian/Mint repository is 3.1.1. This version has an acknowledged bug whereby the cursor does not track correctly in the code editor. The more left/right/backspace keystrokes you use, the further out of step the cursor gets. As a temporary solution to this I have been loading all my project's .class and .module files into the Geany editor, making my code changes then reloading them into Gambas. While this means I can continue to use Gambas it is very tedious, and I lose the special functionality which the built-in code editor provides. In seeking a better solution, my questions are: Is there a later Gambas binary which will run on Debian (LMDE)? Does the cursor-tracking problem occur with all fonts, or is there a font I can use with which the problem does not occur? Is there any way of linking an external editor, such as Geany, to Gambas so that I don't have to reload the project after every code change? Thanks Nige -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
