if anyone has a good example of how can I identify that the user have chosen a tab in a window using QT provide it to me. I searched on line and the provided code give me error .. so here what I am trying to do :
I have a main window which has 3 tabs I will mainly show the same video on all of them but in each will run different algorithm, so I don't want them to run all the time because it will consume lots of processing from my cpu, so I would like to only make it work when the user select or open the tab .. here what I tried :
QObject::connect(ui->tabWidget, SIGNAL(ui->tabWidget->currentChanged(int idx)), ui->label, SLOT(setNum(int idx)));
and it gives me this error
Object::connect: No such signal QTabWidget::ui->tabWidget->currentChanged(int idx)
When you write a connect statement, do not include variable names or parameter names in the SIGNAL or SLOT macros. i.e., you should write this:
QObject::connect(ui->tabWidget, SIGNAL(currentChanged(int)), ui->label, SLOT(setNum(int)));
Related
I've been working with RSelenium all day and still hitting road blocks here and there. My current issue is using the code WebElemReports$clickElement() which clicks a link and a new window opens. I tried to adjust Firefox settings in "about:config" so that it will not open a new window. It doesn't open a window in normal use, but using RSelenium, it opens a new window still. I also looked at this approach but couldn't follow the logic of how it worked:
How to clickElement() and open the link in the same tab
My next thought process was to use the switchToWindow() function along with getWindowHandles(). The code I wrote is as follows:
remDr$closeWindow()
windHand <- remDr$getWindowHandles()
remDr$switchToWindow(windHand)
My thinking is that I will close the current window so that there will only be one handle to reference and pass that handle to the switchToWindow function. I can't find much switchToWindow documentation for R. I receive the following error with using the code above:
Error: Summary: UnknownError
Detail: An unknown server-side error occurred while processing the command.
class: org.openqa.selenium.WebDriverException
Any help on this would be much appreciated--I tried to research this as much as possible so this won't get marked as a duplicate question like my last post. Many Thanks.
Actually you can't close main window, you can switch to child window as below :-
# get main window and store to switch back
currWindow <- remDr$getCurrentWindowHandle()
#gel all windows
windows <- remDr$getWindowHandles()
#loop through switching child window
for (window in windows[[1]]) {
if (window != currWindow[[1]])
remDr$switchToWindow(window)
}
#now do your stuff with child window
#now close your child window after doing all stuff
remDr$closeWindow()
#now switch back to main window for further stuff
remDr$switchToWindow(currWindow[[1]])
Im trying to create a text based adventure game. It prompts the user for a command NAV SHLD PHAS LRS SRS EXIT.
I could easily make the commands related to numbers and do it that way, but that is not as cool. I want my code to be able to recognize that one of these phrases has been entered in console and proceed from there.
printf("NAV PHAS LRS SHLD DOCK EXIT \n");
printf("Command ? \n");
scanf("%c", &command);
This is how I tried to get the code to work and needless to say it does not.
The Variable "command" is a declared as a char "char command;"
Thank you for any help you can give me i've hit quite a roadblock here :(
I wish to simulate a right click on a file. This is done by opening a Windows Explorer window and then right clicking on it.
The main issue is finding the location of the file in Windows Explorer. I am currently using Autoit v3.3.8.1.
My code 's first line:
RunWait (EXPLORER.EXE /n,/e,/select,<filepath>)
The next step is the problem. Finding the coordinates of the file.
After that, right clicking at that coordinates (it seems to me at this time) is not a problem....
Some background:
OS: Windows 7 64-bit
Software Languages: C#, Autoit (for scripting)
The Autoit script is called by a code similar to that below:
Process p = new Process();
p.StartInfo.FileName = "AutoItScript.exe";
p.StartInfo.UseShellExecute = false;
p.Start();
The code is compiled into a console class file which is run at startup. The autoit script runs as the explorer window opens up.
It seems as though you are taking the wrong approach to the problem, so I'll answer what you are asking and what you should be asking.
First up though, that line of code is not valid, and is not what you want either. You want to automate the explorer window, and RunWait waits for the program to finish. Furthermore you want those items to be strings, that code would never work.
Finding the item in explorer
The explorer window is just a listview, and so you can use normal listview messages to find the coordinates of an item. This is done most simply by AutoIt's GUIListView library:
#include<GUIListView.au3>
Local $filepath = "D:\test.txt"
Local $iPid = Run("explorer.exe /n,/e,/select," & $filepath)
ProcessWait($iPid)
Sleep(1000)
Local $hList = ControlGetHandle("[CLASS:CabinetWClass]", "", "[CLASS:SysListView32; INSTANCE:1]")
Local $aClient = WinGetPos($hList)
Local $aPos = _GUICtrlListView_GetItemPosition($hList, _GUICtrlListView_GetSelectedIndices($hList))
MouseClick("Right", $aClient[0] + $aPos[0] + 4, $aClient[1] + $aPos[1] + 4)
As has already been mentioned, sending the menu key is definitely a better way than having to move the mouse.
Executing a subitem directly
This is how it should be done. Ideally you should never need an explorer window open at all, and everything can be automated in the background. This should always be what you aim to achieve, as AutoIt is more than capable in most cases. It all depends on what item you want to click. If it is one of the first few items for opening the file in various programs, then it is as simple as either:
Using ShellExecute, setting the verb parameter to whatever it is you want to do.
Checking the registry to find the exact command line used by the program. For this you will need to look under HKCR\.ext where ext is the file extension, the default value will be the name of another key in HKCR which has the actions and icon associated with the filetype. This is pretty well documented online, so google it.
If the action is not one of the program actions (so is built into explorer) then it is a little more complex. Usually the best way will be to look at task manager when you start the program and see what it runs. Other things can be found online, for example (un)zipping. Actions like copy, delete, rename, create shortcut, send to... They can all be done directly from AutoIt with the various File* functions.
With more information, it would be possible to give you more specific help.
First, you might want to look at the Microsoft Active Accessibility SDK. In particular look at this interface...
http://msdn.microsoft.com/en-us/library/accessibility.iaccessible.aspx
You can use this to walk the items in the control and find the one with the file name you are looking for and its screen location.
From there, maybe try something like this for simulating the right click.
How can I use automation to right-click with a mouse in Windows 7?
Once you have done the right click, use accessibility again to find the right option on the context menu.
Maybe there's an easier way, you should be able to cobble something together like this if you don't find one. Good luck!
Suppose I have a file named test.txt on D drive. It needs to right click for opening Context Menu. To do this, the following code should work:
Local $filepath = "D:\test.txt"
Local $iPid = Run("explorer.exe /n,/e,/select," & $filepath)
ProcessWait($iPid)
Sleep(1000)
Send('+{F10}')
I have a basic label that is supposed to indicate to the user that the program is searching directories for several seconds. So it goes like...
self.label.setText(QString("Searching..."))
# method to search directories goes here
self.label.setText(QString("Search Complete"))
My problem is that the label never displays "Searching...". The execution always seems to jump straight to run the method to scan directories, and then the label text is set to "Search Complete" after the method which scans directories has finished.
I'd be grateful if someone could please explain why this is happening or suggest a better way to resolve the problem.
many thanks
Your "method to search directories" is blocking the GUI hence QLabel is not able to update the text. You can make your search routine asynchronous or go the easy way and force QLabel to update itself:
self.label.setText(QString("Searching..."))
self.label.repaint()
# method to search directories goes here
self.label.setText(QString("Search Complete"))
Add include:
#include <qapplication.h>
Let Qt process events:
self.label.setText(QString("Searching..."))
qApp->processEvents();
Note: repaint() was not necessarie.
In PyQt5, you don't need to use QString :
self.label.setText("Searching...")
self.label.repaint()
self.label.setText("Search Complete")
Users open files in our app through a QFileDialog. The order of the filenames is bizarre. What is determining the sorting order, and how can we make it sort by filenames, or otherwise impose our own sorting, perhaps giving it a pointer to our own comparison function?
The documentation and online forums haven't been helpful. Unless it's well hidden, there doesn't seem to be any sorting method, property, etc.
This is a primarily Linux app, but also runs on Macs. (I know nothing about Mac.)
Here is the juicy part of the source code:
QtFileDialog chooser(parent, caption, directory, filter);
/// QtFileDialog is our class derived from QFileDialog
chooser.setModal(true);
chooser.setAcceptMode(acceptMode);
chooser.setFileMode(fileMode);
QStringList hist = chooser.history();
chooser.setHistory(hist);
/* point "x" */
if(chooser.exec()) {
QStringList files = chooser.selectedFiles();
...blah blah blah...
From one of the answers, I tried an evil experiment, adding this ill-informed guesswork code at "point x":
QSortFilterProxyModel *sorter = new QSortFilterProxyModel();
sorter->sort(1); // ???
chooser.setProxyModel(sorter);
But this crashed spectacularly at a point about 33 subroutine calls deep from this level of code. I admit, even after reading the Qt4 documentation and sample code, I have no idea of the proper usage of QSortFilterProxyModel.
Are you using QFileDialog by calling exec()? If you are, you should have a button to switch the view to Detail View. This will give you some column headers that you can click on to sort the files. It should remember that mode the next time the dialog opens but you can force it by calling setViewMode(QFileDialog::Detail) before calling exec().
An alternative is to call the static function QFileDialog::getOpenFileName() which will open a file dialog that is native to the OS on which you are running. Your users may like the familiarity of this option better.
Update 1:
About sort order in screen cap from OP:
This screen capture is actually showing a sorted list. I don't know if the listing behaviour is originating from the Qt dialog or the underlying file system but I know Windows XP and later do it this way.
When sorting filenames with embedded numbers, any runs of consecutive digits are treated as a single number. With the more classic plain string sorting, files would be sorted like this:
A_A_10e0
A_A_9a05
Going character by character, the first 1 sorts before the 9.
.. But with numerical interpretation (as in Windows 7 at least), they are sorted as:
A_A_9a05
A_A_10e0
The 9 sorts before the 10.
So, the sorting you are seeing is alphabetical with numerical interpretation and not just straight character by character. Some deep digging may be required to see if that is Qt behaviour or OS behaviour and whether or not it can be configured.
Update 2:
The QSortFilterProxyModel will sort the strings alphabetically by default so there is not much work to using it to get the behavior you are looking for. Use the following code where you have "point x" in your example.. (you almost had it :)
QSortFilterProxyModel *sorter = new QSortFilterProxyModel();
sorter->setDynamicSortFilter(true); // This ensures the proxy will resort when the model changes
chooser.setProxyModel(sorter);
I think what you need to do is create a QSortFilterProxyModel which you then set in your QFileDialog with QFileDialog::setProxyModel(QAbstractProxyModel * proxyModel)
Here are some relevant links to the Qt 4.6 docs about it.
http://doc.trolltech.com/4.6/qfiledialog.html#setProxyModel
http://doc.trolltech.com/4.6/qsortfilterproxymodel.html#details
I don't think it depends upon the implementation of Qt libraries... But upon the Native OS implementation..
For example in Windows,
if you use QFileDialog, it will display the Files and Directories by Name sorted.. It is the same when used in other applications. In the sense that, if you try to open a file through MS- Word, it indeed displays the Files and directories as Name sorted by default..
And am not sure about other environments since am not used to them...
But in Windows, you can change the sorted order by right-click in the area of Files and Directories display and can select the options you like.. For e.g like Name,size,type, modified... And also which is similar, when you use an MS-Word application...
So, I believe it does depend on the Native OS implementation and not on QFileDialog's...