I created a Qt4 Gui application. I have the main window. I put a QStackedWidget and two QPushButtons on the MainWindow's central widget. I am using QtCreator as my IDE.
In the attached image the shown stacked widget has two pages and the two pushButtons 1 and 2 are for navigation to firstPage and SecondPage of the stacked widget respectively.
Problem 1:
When I opened signal/slot editor I selected sender=button1 and signal=clicked, then receiver=stackedWidget and slot=? . It supposed to be setCurrentIndex() but its not listed in the drop down list.
Problem 2:
In the right object panel of QtCreator there is marked the "Denied Symbols". I don't know why those symbols are there? Is there any problem ?
I am attaching the screenshot below. If any more details are required please let me know.
I too am learning QT and QT Designer, and ran into the same problem. A determined search of the Internet revealed several other people with the same question, and no answers. You'd think someone out there would have explained it by now. Sigh.
Anyway, the problem is that the signals sent by the push-buttons don't match the signature of the "setCurrentIndex(int)" slot on the stacked-widget, so "setCurrentIndex(int)" doesn't show up in the menu when one tries to use a push-button "clicked()" signal. That is, "clicked()" has no parameters, and "setCurrentIndex(int)" has a single integer parameter, therefore they have different signatures.
In my project, I was trying to connect menu items to a stacked widget, so that one of the contained widgets would be displayed when the menu item was selected. The menu items only have the "triggered()" signal, there's no "triggered(int)" signal, and QStackedWidget's "setCurrentIndex(int)" slot is expecting a signal that has a single integer parameter in its signature.
In other words, you can't do what you want, directly.
Here's how I solved it in my code. Keep in mind that I'm writing my Qt app in C#, using MonoDevelop (to do C# development under Linux) and Qyoto (which is a C# interface to Qt).
After creating my main window (and assiging it to a variable called "layout"), I did this:
QObject.Connect (layout.someMenuItem, SIGNAL("triggered()"), showSomeView);
This causes my menu item to call the showSomeView() function whenever it's triggered.
I then wrote
public void showSomeView()
{
layout.stackedWidget.SetCurrentWidget(layout.someView);
}
Now it does what I mean!
The solution in your project's language should be similar to this. It's unfortunate that the signal/slot connections have to be set up in code, instead of in QT Designer's GUI, but I don't know how else to do it.
Related
I am new to sikuli.
I am using it for functional test automation of my java spring standalone application. I am having the same set of images(logos) at multiple locations on the screen. and they are generated dynamically as per the application data. In that case how can I find and click on certain buttons/elements in the UI.
Example: like, share, comment text/image will be there several times in facebook page. in that how to we click on particular buttons out of all.(facebook is just an example) i want the similar solution for my application.
I think what you're asking is- given a case where the same image or UI element is present multiple times on the same page, how can I specify one of these elements in one location versus the same element in another?
The quick and easy way to do this would be to capture a larger picture, like as much of the window as you can, and click the image in parentheses after the click action; this opens a window reading file, matching preview, and target offset. Click target offset, use the mouse wheel to zoom in, and click on the exact point of the picture that you'd like to click.
It's possible to click in multiple places on a captured image, provided you use different click() commands, and you can set the target offset for each click() command without needing a new picture.
With just this one image, you can potentially click every square on the board provided you take the time to set the offset for each of the 64 click() commands it'd take to do so. http://files.chesscomfiles.com/images_users/tiny_mce/cigoL/Chessboard.png
The more difficult solution would be setting up regions, and searching those regions for the matching pictures, but for what you're looking for this should- for more about regions and setting it up check links below. Cheers!
http://sikulix-2014.readthedocs.io/en/latest/index.html
Based on your FB example you could use setROI() to focus on the top post on the page (imagine a rectangle that covers a complete post on the news feed) from there I would loop:
if exists(profile pic):
click(like button)
elif exists(profile pic 2): # If you are testing more than one user
click(like button)
else : type(Key.DOWN) #repeat as needed
Getting the next post into the ROI may be tricky but using WHEEL_DOWN may help if you can adjust your lines traveled with each wheel click on your system.
I am working on creating widgets to work with specific D3 visualizations. I have successfully created both of the widgets I want to use. However, when I use these two widgets in the same R-Shiny application, only the first widget used has the CSS file added to the source code. The second widget called has its CSS left off. Resulting in some odd looking visualizations.
How can I work around this?
I call HEBOutput() and CITOutput() - my two functions. Thus, HEBcss.css is put into the source code, but CITcss.css is not.
I have a basic ASP.Net MVC 3 application which has a number of controllers and a number of actions (and subsequently views)
A common feature of the application is to show a pop-up dialog window for basic user input. One of the key features of this dialog process is a faded mask that gets shown behind the dialog box.
Each of these dialog window controls is in a separate Partial View page.
Now, some view pages may use multiple dialog boxes, and therefore include multiple partial views in them - which as is would mean multiple instances of the "mask" element.
What I am trying to find a solution for is to only need to create one instance of a "mask" element regardless of the number of dialog partial views I include, and then the script in each partial dialog will have access to this element (so basically it just needs to be on the page somewhere)
The only real idea I have come up with so far is to add the "mask" element to the master page (or in the original view page) and this will mean it only gets added once. The problem here is that it will be added even when it is not needed (albeit one small single element)
I can live with this, but I would like to know if there is a better way to handle these kinds of scenarios?
A quick idea that came to mind is some kind of master page inheritance hierarchy, So I may have a DialogMasterPage that inherits from the standard current master page. How does that sound for an approach?
Thanks
To do something like this, where each module can register their need for a certain thing in the master page, you can use HttpContext to store a flag of whether you need to write the mask div, and just set that property in each partial. At the end of the master page, if the flag is set, you can then write the mask div if its set to true.
Obviously to make this cleaner you could wrap it all in an HtmlHelper extension or something.
My initial thought is for you to use something like jQuery UI where it handles the masking for you or if you are using something custom you can load the content for the dialog via ajax then show it in the single dialog on the master page.
I found that I can write code just by typing everything or activate element, then click for example OnClick property and write code to between the sub-end sub lines.
One person I met said that one has always use mouse and select the property in which you want to write the code, as it might write something else to some files such that the code won't work.
Is this correct or are those two ways to write code equally good? I'm using Access 97.
The short answer is you CAN do it that way. But it doesn't mean you SHOULD.
With a little experimentation I've found that you can type in event subs directly in the code window, and their creation will be reflected in the properties window. This might not have always been the case in older versions of MS Access.
You can also create them by selecting the Control in the code window's top left pull down, and then selecting the event in the top right pull down.
Why would I choose to use the Code Builder (or at least the second option I provided). Because it prevents you from making mistakes. Both in the name of the control/event and in accidentally creating duplicate Subs. Both of which could be frustrating when debugging your application - how long could you spend looking for a bug because you added an extra "S" to an element name by accident. If you follow through from the properties window, you are guaranteed to be working on the right Sub and that it will be spelled correctly.
Note: I've also found that you can delete the entry in the properties window, but it leaves the code behind in the code window. So to make sure it is really gone, you do have to go into the code window and delete the Sub there.
That's not to say that I never do anything directly in the Code window like that - if I've renamed a control, I'll often update the name in the code window. But then I'll go back through the properties window to verify that I've re-connected the subs properly.
"Look, I'm running with scissors!"
My current job is updating an existing Access97-Project. I haven't worked with Access in a long time and i can't find out, how i can explore a toolbar called "sbmbDrucken" which is obviously user-created. I just need access to the action or the code which is called by the buttons...
Is there any menu entry i missed or do i need special code for self-inspection?
TIA!
There are three different ways for menus/toolbars to be instantiated:
the old way, using macros. Before A95, this was the only way, so a lot of older apps (i.e., those converted from earlier versions) may still use macros for the menus.
defining them by hand, using the CUSTOMIZE function that you get when you right click on a toolbar in Access.
in code, using the Application.Commandbar object.
For the first you can browse your macros and see if any of them are menu macros.
For the last, you can do a search in the code for CommandBar.
For the second, just look at them through the built-in menu customization tools. Keep in mind that you may have to check them off to get them to be visible, and that the list is in no rational order. Likewise, some menus/toolbars are hidden from the customization interface. Also, you might need to look at the CUSTOM toolbar menu item.
I don't have Access 97 on hand but you may take a look of this webpage: http://www.alvechurchdata.co.uk/hints-and-tips/accaddtoolbar.html
It seems that "user-created" toolbars could be defined by handwritten code at form.load or somewhere similar. You may search CommandBars.Add and see if you can find those relevant code segments.
Hope that helps.
In the design mode, you will be able to see the toolbar & actions assigned to each of the button.
Right click on the specific toolbar
Click on Customize...
Right click on the button you would like to edit the action of.
You will be able to see the action (which could either be macro or code).
Let me know, if that doesn't help at all.