I'm developing my MS Access database editor (mdb, accdb) which I will give everyone for free. I've done mostly everything that matters except relationships. The problem for me is how to show relationship(s). I would like to do it like in the real MS Access:
The thing is, I don't know how would I connect these child windows with a line that is stretching and resizing when one of the windows move etc...
This maybe not a question that can have a direct answer but I'm stuck here and don't know how to show those relationship(s). I'm using C++ Builder XE2.
So you need a library to draw graphs...
Making an answer, for being able to put links in the list (which comments would not allow)
http://sourceforge.net/projects/extgraph/
How to create graphs in Delphi application
http://www.torry.net/pages.php?s=88
Related
My iOS app is a mobile version of a management program I had developed for a company as a desktop application. So its main tasks are saving data in a database and retrieve them when needed with the option to edit them. So I guess that the GUI is mainly composed by forms to fill in and tables to show data. So I am asking you if you could link me some tutorials or give me some tips on how to realize them in a nice way but not too complex. I'd rather avoid simply creating a blank view controller and inserting labels and text fields without a minimum of criterion. I am very new to iOS and XCode and, as I have not too much time, I am asking directly your opinion instead of spending hours in looking for tutorials.
UPDATE!
I mean that I would like to get something similar, for a mobile iOS device, to the following screenshots (from the desktop application I mentioned above)
Seems that you need a grid control to do it.
You can develop your own, or use existing library.
I have very good work experience with Infragistic http://www.infragistics.com/products/ios/grids/grid-view-layouts, but maybe DataForm from Telerik will be better in your case http://www.telerik.com/ios-ui/dataform
I need to be able to use the modern CSS3 and javascript support of Chrome in a powerbuilder classic 12 project.
I found this post Memory leak with Chromium Embedded interop ActiveX control using CEFSharp WPF
where it seems that a member has successfully created an interop activex control. This is what I need to do and I need some help doing so.
If you want to USE the interop ActiveX control like mentioned in the post you included than simply use it the same way the other person did. Find out where they got the interop control and use it like normal in PB.
I think that you are wanting to develop an ActiveX wrapper which will then be used in PB. As the name implies (wrapper) just create an ActiveX project in Visual Studio and start mapping the properties/events/functions until your wrapper is complete. If you didn't know the basic steps for creating a wrapper than it shouldn't take more than ten minutes on the internet to get an idea of what that is and how to do it.
Also to help you out being a new StackOverflow member, I'd suggest using better tags for the best results. I see why you chose a few of them but 3 of 4 have fewer than 100 followers so your question is not being seen much at all (thank goodness for you on this one). I'd have put this under .NET, C# for top exposure and maybe keep the chromium tag which will help people searching for the answer down the road, it isn't helping you find the answer with less than 100 followers.
Oh, if you need someone to write the wrapper- I am looking for work and can do it for few hours/days pay depending on how much you need exposed.
Check the screenshot below from Omnigroup, note the nested cards, how do you think we can implement a similar one in Delphi? Custom draw Virtual treeview? Any other hints? Thanks!
Seems to me that nested panels with captions would do the job nicely. If you want something more or less ready made, TMS Software's TAdvToolPanel comes to mind. Haven't used them for this kind of thing, but they are nestable, so you should be able to get something working fairly quickly.
An owner draw treeview might do the job. You could look at Virtual Treeview which is an open source component (and according to another SO question on of the best).
I'm looking for a VCL component for C++ builder. It should preferably have a toolbar with drag & drop functionality.
I want to define a building or area (which might not be rectangular) and split it into "rooms" (or areas, or whatever you want to call them). And I want to be able to put "doorways" (or passages, etc) from a room into its neighbours.
is there such a thing? Preferably free.
Thanks.
In case anyone wants to know the answer, I have verified with TMS that the diagram studio can indeed do this.
Although they said "You can use TMS Diagram Studio for that, it’s not that complicated to create new custom blocks, like L-shaped rooms", so I still need to verify that it can handle triangles & lost parrots (polygons).
Not that it is specifically built for room designing, but my best guess is that it is the closes you'll get without having to create the components yourself. Anyway TMS have a component pack called Diagram Studio. This allows you to add functionality to your application that somewhat simulates that of Microsoft Visio and other programs.
I don't know if this was truly what you wanted, but even though I haven't tried it myself my guess is that you can create your own room and door like shapes to be placed. It might worth a look. Atleast the feature list has this:
is there a vcl or a project (in delphi) that would allow me to download OSM tiles and display them on an app?
I have tried embedding an browser and it worked great but i need a way to display the maps offline.
As I see it, there is 3 ways to do this :
Save all displayed tiles as a single image (could be done easily with a TWebBrowser, or TEmbeddedBrowser component) : you would navigate to the map address (OSM Mapping Server) based on given coordinates (top left corner), and then take a snapshot. You need to recalculate the base coordinates (top left corner) after each snapshot.
You need to understand how tiles are generated, wich is not quite difficult :
basically, the scheme of osm tiles generation is as follow http://osmserver.org/tiles/tile/x/y/z.png
Once you understand how it works, you could calculate tiles url by code and download'em one by one.
For more info on the tiles generation scheme look here :
good thread on manifold forum : http://forum.manifold.net/forum/t71011.13#75206
http://wiki.openstreetmap.org/wiki/Slippy_Map
http://wiki.openstreetmap.org/wiki/Tiles%40home
or if you need to go further : http://wiki.openstreetmap.org/wiki/OSM_Protocol_Version_0.5
download the entire OSM maps (available on the web) and use a VCL component to display them (Tatukgis DK...)
Best Regards,
Mo3ez
I don't know the OpenStreetMap project very well, but there's a chance that the project itself has the software to "view" the maps inside a page.
You can accomplish your goal: show the maps off-line using the same basic construct you have now for the user interface: a embedded browser.
What you change is the url the browser will connect to to something like (http://localhost:3458), making your application her own web-server, for example, with Indy TIdHTTPServer binded to port 3458 (just an example port).
That way, you can serve the content for the embedded browser from inside your application, in the same way Delphi IDE (>= 2005) itself provides content for the main page you see when you start it (in fact, a embedded web browser).
To that browser, you serve the viewer page, all it's dependencies and the OSM file. The only restriction to this idea is the viewer MUST do all the things on the client side (for example, it could be javascript, flash, etc.). No server side scripts, unless you are willing to "mimic" the server side behavior or to integrate your application with the script engine (not too easy).
Other chance is to use THBImage, who offers OpenStreetMap integration with Delphi and a (not working) site demo.
Oops! I tried to provide a few hyperlinks in my message but as a new StackOverflow user I'm limited to just one. You might checkout the "Need solution to display map" message thread (25-Jan-2010) on: embarcadero.public.delphi.thirdpartytools.general
I'm trying to solve a similar problem. I need to display a county-wide or city-wide map using Delphi and then put custom icons on the map. I do not need routing or a very detailed map. In the past I've used a TMS "hotspot" component for the custom icons on top of a TImage. Now I need a way for the client to select their own map for the static background image.
A freeware MFC GUI control class (with source) which implements display of OpenStreeMap tiles:
www.naughter.com/osmctrl.html
The zip there has an executable that shows how it works.
This unit is to calculate URLs for the OpenStreetMap Project's TileServer, and other useful utilities as may be needed. If you want to use OpenStreetMap in your pascal programs, then this is for you.
http://code.google.com/p/openstreetmap-fpk/
I'm also considering using the free Tiger/Line maps. Those look pretty good in a free Linux program (xastir).
TatukGIS looks very good (and expensive). I certainly don't need a full GIS solution so this seems to be way overkill just to display a map. But if I don't find a simpler solution this still might be better than integrating MS MapPoint.
TGlobe seems like what I need but sadly it is no longer available.
look in StelMAP for Delphi with OSM
Component to view a map of the project OpenStreetMap for Delphi 2010 without using browser or scripts.
You can view maps offline. Support for proxy servers for work online. Multi-threaded loading tile map speeds up the process to download and view maps.
The set of procedures and property allows you to add a component to map an unlimited number of layers, shapes and images.
Don't know about OSM files, but if you can open them in a browser, you can always embed a TWebBrowser in your Delphi application and load the files within it.
Not the most elegant, but should work...(requires IE)