How can I check if a reference with a particular unresolved name is loaded using an if statement. Thanks
Pseudo code example
If (referenceLoaded "C:/bridge.ma"){ do stuff}
You could try something like
referenceQuery -isLoaded "C:/bridge.ma";
Which will return a 1 or 0 if the file is loaded or not.
Heres a rough example of the above in an if statement:
if (!`referenceQuery -isLoaded "C:/bridge.ma"`)
print("reference not loaded");
else if (`referenceQuery -isLoaded "C:/bridge.ma"`)
print("reference is loaded");
Sorry but I realize that it doesn't work as well as i want it to. It only works if the file as been referenced that is, it appears in the reference editor. However, I would like to beable to detect if the file is actually referenced. Right now the current code throws an error "please specify a reference node, referenced file, or node from a referenced file." I think it's because the file was never referenced before. But if the file was referenced but just not loaded, the code would work.
I resolved the erroring out issue by using catch
if (catch(!referenceQuery -isLoaded "C:/bridge.ma")) {
continue;
}
else if (referenceQuery -isLoaded "C:/bridge.ma") {
print("reference is loaded");
}
Related
I need to read a text file with readLines() and I've already found this question, but the code in the answers always uses some variation of javaClass; it seems to work only inside a class, while I'm using just a simple Kotlin file with no declared classes. Writing it like this is correct syntax-wise but it looks really ugly and it always returns null, so it must be wrong:
val lines = object {}.javaClass.getResource("file.txt")?.toURI()?.toPath()?.readLines()
Of course I could just specify the raw path like this, but I wonder if there's a better way:
val lines = File("src/main/resources/file.txt").readLines()
Thanks to this answer for providing the correct way to read the file. Currently, reading files from resources without using javaClass or similar constructs doesn't seem to be possible.
// use this if you're inside a class
val lines = this::class.java.getResourceAsStream("file.txt")?.bufferedReader()?.readLines()
// use this otherwise
val lines = object {}.javaClass.getResourceAsStream("file.txt")?.bufferedReader()?.readLines()
According to other similar questions I've found, the second way might also work within a lambda but I haven't tested it. Notice the need for the ?. operator and the lines?.let {} syntax needed from this point onward, because getResourceAsStream() returns null if no resource is found with the given name.
Kotlin doesn't have its own means of getting a resource, so you have to use Java's method Class.getResource. You should not assume that the resource is a file (i.e. don't use toPath) as it could well be an entry in a jar, and not a file on the file system. To read a resource, it is easier to get the resource as an InputStream and then read lines from it:
val lines = this::class.java.getResourceAsStream("file.txt").bufferedReader().readLines()
I'm not sure if my response attempts to answer your exact question, but perhaps you could do something like this:
I'm guessing in the final use case, the file names would be dynamic - Not statically declared. In which case, if you have access to or know the path to the folder, you could do something like this:
// Create an extension function on the String class to retrieve a list of
// files available within a folder. Though I have not added a check here
// to validate this, a condition can be added to assert if the extension
// called is executed on a folder or not
fun String.getFilesInFolder(): Array<out File>? = with(File(this)) { return listFiles() }
// Call the extension function on the String folder path wherever required
fun retrieveFiles(): Array<out File>? = [PATH TO FOLDER].getFilesInFolder()
Once you have a reference to the List<out File> object, you could do something like this:
// Create an extension function to read
fun File.retrieveContent() = readLines()
// You can can further expand this use case to conditionally return
// readLines() or entire file data using a buffered reader or convert file
// content to a Data class through GSON/whatever.
// You can use Generic Constraints
// Refer this article for possibilities
// https://kotlinlang.org/docs/generics.html#generic-constraints
// Then simply call this extension function after retrieving files in the folder.
listOfFiles?.forEach { singleFile -> println(singleFile.retrieveContent()) }
In order to have the same url that work for both Jar or in local, the url (or path) needs to be a relative path from the repository root.
..meaning, the location of your file or folder from your src folder.
could be "/main/resources/your-folder/" or "/client/notes/somefile.md"
The url must be a relative path from the repository root.
it must be "src/main/resources/your-folder/" or "src/client/notes/somefile.md"
Now you get the drill, and luckily for Intellij Idea users, you can get the correct path with a right-click on the folder or file -> copy Path/Reference.. -> Path From Repository Root (this is it)
Last, paste it and do your thing.
I have a Tizen Edje file which defines my layout. One part is an image with part name 'warning'. The item is set to visible in the edge file, and it shows as expected.
I want to hide this part using C code:
Evas_Object* image_NotSetYet = (Evas_Object *) edje_object_part_object_get(elm_layout_edje_get(wid->edjeLayout), "warning");
if (image_NotSetYet == NULL) {
dlog_print(DLOG_ERROR, LOG_TAG, "View: Unable to get warning image part");
return;
}
evas_object_hide(image_NotSetYet);
I have tried many different ways to get the Evas Object associated with this part name and hide it. After many hours I stumbled onto some code that I modeled after, and it seems to work. I can hide (and show) my image part now.
However, I later add an unrealted image to a swallow in this layout and show it. All of a suddent the 'warning' part image shows again. Why? Am I hiding the 'warning' part the wrong way? Is there something wrong with the above?
Alternatively, is there something wrong with the way I am adding an image to the swallow below? The image (from file) will show up, but suddenly my warning part above shows too:
Evas_Object *img = elm_image_add(wid->edjeLayout);
if (img == NULL) {
dlog_print(DLOG_ERROR, LOG_TAG, "View: Failed to add a image.");
return;
}
// Create an image and set contents to imagefile
char *imageFileName = barcode_filename();
bool isSet = elm_image_file_set(img, imageFileName, NULL);
dlog_print((isSet?DLOG_INFO:DLOG_ERROR), LOG_TAG, "View: %s file [%s] to image",(isSet==EINA_TRUE?"Set":"Failed to set"),imageFileName);
free(imageFileName);
evas_object_show(img);
// Assign the image to the swallow2 part
elm_object_part_content_set(wid->edjeLayout,"swallow2",img);
I tried adding the image to the 'window' instead of the 'layout' but that didn't seem to matter. (I've seen many contradictory examples so I don't know which is right)
I tried setting the image to the 'swallow2' part name many different ways (again, many contradictory ways show). Is this the problem?
Otherwise, can someone explain what is going wrong?
The image_NotSetYet is not an image object.
Evas_Object* image_NotSetYet = (Evas_Object *) edje_object_part_object_get(elm_layout_edje_get(wid->edjeLayout), "warning");
That refers to the "warning" swallow part object.
You should never modify the state of the returned object, because it's meant to be managed by Edje, solely.
If you want to get the image pointer from your layout as you expected, you could use following instead.
Evas_Object* image_NotSetYet = elm_object_part_content_get((wid->edjeLayout), "warning")
But as above link describes, the image object should be manged by Edje.
You might got the 2nd problem because it is managed by Edje. So please use edje_object_signal_emit to handle swallowed images.
I am using the following code to create a directory using the following code.
TCHAR dir_path[] = TEXT("C:\Users\Temp\abc");
if (!CreateDirectory(dir_path,NULL)) {
}
else
{
//directory already exists
}
I want to add the logic to delete all the content of the folder(Files and folders recursively if any are there) if the folder C:\Users\Temp\abc already exists.
Any idea how I can delete the content of the folder recursively?
Thanks in Advance,
Azeem
I am new to this site. Apologies in advance if I am mistaken anywhere.
Firstly find the entries in the directory:
http://msdn.microsoft.com/en-us/library/windows/desktop/aa364418%28v=vs.85%29.aspx
See if they are directory or not:
http://msdn.microsoft.com/en-us/library/windows/desktop/aa365740%28v=vs.85%29.aspx
and
http://msdn.microsoft.com/en-us/library/windows/desktop/gg258117%28v=vs.85%29.aspx
If yes, change to it and call the function again http://msdn.microsoft.com/en-us/library/windows/desktop/aa365530%28v=vs.85%29.aspx.
Then delete it: http://msdn.microsoft.com/en-us/library/windows/desktop/aa363915%28v=vs.85%29.aspx
I am building a code that lets the user open some files.
reference = warndlg('Choose the files for analysis.');
uiwait(reference);
filenames2 = uigetfile('./*.txt','MultiSelect', 'on');
if ~iscell(filenames2)
filenames2 = {filenames2}; % force it to be a cell array of strings
end
numberOfFiles = numel(filenames2);
data = importdata(filenames2{i},delimiterIn,headerlinesIn);
When I run the code, the prompts show up, I press OK, and then nothing happens. The code just stops, telling me :
Error using importdata (line 137)
Unable to open file.
Error in FreqVSChampB_no_spec (line 119)
data=importdata(filenames2{1},delimiterIn,headerlinesIn);
I just don't have the opportunity to select a file. The cellarray stays empty as showed in the following image.
MATLAB can't find the file that you have selected. Your variable filenames2 contains only the name of the file, not its full path. If you don't provide the full path to importdata, it will search for whatever file name you provide on the MATLAB path, and if it can't find it it will error as you see.
Try something like this - I'm just doing it with single selection for ease of description, but you can do something similar with multiple selection.
[fileName, pathName] = uigetfile('*.txt');
fullNameWithPath = fullfile(pathName, fileName);
importdata(fullNameWithPath)
fullfile is useful, as it inserts the correct character between pathName and fileName (\ on Windows, / on Unix).
You can try to add
pause(0.1);
just after uiwait(reference);
For me it works. In fact I've noticed the active windows changes when we use uiwait and uigetfile.
I am using many of the array methods found in array.c of the ruby codebase, but when trying to call
VALUE rIntersection = rb_ary_and(rAry1, rAry2);
I got this error:
dyld: lazy symbol binding failed: Symbol not found: _rb_ary_and
Referenced from: ./ext/ev/counters.bundle
Expected in: flat namespace
In other areas of my code I am using rb_ary_sort_bang, rb_ary_clear, rb_ary_reverse, etc etc. So I'm not sure why rb_ary_and is any different.
Have a look at http://www.ruby-doc.org/doxygen/1.8.4/array_8c-source.html (Line 2666)
There you can see that the method rb_ary_and is declared static. This means that it is only visible inside of array.c.
Untested, but I would assume this would work:
rb_funcall( rAry1, rb_intern("&"), 1, rAry2 )