I'm familiar with the VisualWorks and Dolphin versions of Smalltalk, but have not previously used Squeak. I'm just familiarising myself with Pharo, which is a 'cleaned up' fork of Squeak.
I'm used to having the facility in the Class Browser to show either only the methods implemented by a class or both the methods inherited and the methods implemented.
Is this useful facility missing in Squeak, or have I just been unable to find it?
You can double-click on any class to open a Hierarchy Browser on that particular class. The hierarchy button in the toolbar and the menu entry browse hierarchy (Ctrl+H) open the same view.
There is the Inheritance Browser that shows you the hierarchal implementations of the currently selected method. Click on the inheritance button in the toolbar.
Furthermore there is the Protocol Browser that displays all methods and super methods of a class together. To open this browser select browse protocol (Ctrl+Shift+P) in the context menu of the class.
If you want to build a browser with that behaviour, you should take a look at the Glamour browser construction DSL.
I personally do not feel the need to see all 34 pages of method names defined in ProtoObject and Object, or the 5 pages of method categories. Object methods size prints 421.
AFAIK in the GemStoneTool there is such a thing, thre is a 1 or so and a # which seems to change the view to see all the methods available in a class (be it inherited or in the class itself) I'm as amazed as you that nothing like that exists in "standard images". Maybe the users know the libraries for ages, and maybe they remember enough to not bother. ....
Related
I'm used to work with NetBeans and now I'm trying IntelliJ. So my question is: Does IntelliJ has a way to get right class by its methods?
For example, in NetBeans if I write:
glGenBu // Intellisense will kick in and will suggest me
to use GL15.glGenBuffers() method from GL15 class
This will automatically import the right library.
This is very handy because I'm working with LWJGL and it has a bad way to manage OpenGL methods ('GLXX' where XX is the version of OpenGL and all methods that appeared in that version are stored in that class) and I never remember the right class where my desired method is.
Thank you.
Pressing Ctrl+Space when you already see completion list will show more suggestions, with static methods from the entire project among them. See https://www.jetbrains.com/help/idea/auto-completing-code.html for more details.
Is there a quick easy way to have IntelliJ identify the superclass or interface defining the method being called in a class?
For example, in the following example, the fireEvent method is being called on the implicit this but this method is not defined within this Java class being edited in IntelliJ 2018.3. Is there some way to ask IntelliJ which of the several interfaces being implemented as well as any parent in the superclass hierarchy defines this particular method?
…
private void doIt() {
…
fireEvent( event ) ;
}
What I am asking is for the opposite of this Question, Does IntelliJ have the equivalent of the Eclipse “method view”?. That Question asks “for a given class, what are its methods offered?”. I am asking “for a given method being invoked, from what inherited superclass or interface is that method defined?”.
I generally just context-click (Ctrl-click on PC, Command-click on macOS) to navigate to the source for a method. The .java file of the superclass or interface opens in the editor.
In order to avoid navigating away, you can also context-hover. Another option is showing the javadoc via context-q when the cursor is somewhere in the method name.
In a Dolphin smalltalk treeview I'd like to use a custom icon, depending on the state of the item displayed, (differente state, different icon)
How can I do that ?
I cannot really understand how to use a "my" icon.
I've create a class "connection", with an instance variable "connected"
and two class methods "connectedIcon and unconnectedIcon that returns icon images.
Then an instance function "icon" that returns one or the other image based on the connection state.
I can add instances of this class to a tree view and see the name of the connections.
But how to show my Icons ?
I tried to sustitute the getImageBlock of my presenter view with the following expression [:obj | obj icon] but it doesn't work.
(nothing seems to happen).
this is made in my presenter initialize :
initialize
super initialize.
treePresenter view getImageBlock: [:obj | obj icon]
what's wrong with it ?
best regards
Maurizio
When you are editing a TreeView, one of the properties is getImageBlock. By default it is not really a block but another object that understands the message #'value:' (the class IconicListAbstract). You can replace this property with a code block (or other object that understands #'value:') and answer the image you want displayed.
In Microsoft Windows, icons are typically stored in a DLL. You should be able to use an icon explorer or editing tool to see the icons in a dll. For example, get IconExplorer from http://www.mitec.cz/iconex.html and try opening DolphinDR7.dll. Do the icons and numbers match what you see when you return a number in your application?
To determine (or override) the resource library used, see SessionManager>>#'defaultResLibPath'.
Typically, the getImageBlock is set using the property editor in the GUI editor, but setting it through code can work as well.
Wonderful Dolphin Smalltalk!
I had two problems
1) how and where to modify the getImageBlock method of my Treepresenter.
2) where to put the icons ad how to get the imageindex of each icon.
This is the solution :
1) it's not needed.
The treeview sends an #iconImageIndex" message to my model
this is handled by the default method (in the Object class) that send to my object the message #icon
and to the result of this message (an icon) the message #iconIndex.
This message is understood from the icon that answers with its own iconIndex.
So the only method I need to impement is #icon in my class Connection
that I implemented as follows:
icon
opened ifTrue: [^Connection connectedIcon] ifFalse: [^Connection unconnectedIcon]
In the class itself the two icons are imported in the image by evaluating the createIconMethod,
as explained in the blog article 'Beauty with less Beast'.
So my problems are solved.
Thanks to all.
Maurizio.
In Selenium 2.0 there is a class I've seen used with WebDriverCommandProcessor called AlertOveride. Unfortunately I cannot seem to find any documentation around this class, does anyone have any knowledge of what the class is meant to be used for?
Looking at the JavaScript in the file it seems that this class is responsible for overriding the alert and confirm boxes that we would typically see when invoked in the application under test. The way selenium works it was unable to interact with those modal boxes, hence the need to override their defaults. I don't see a way to override that functionality (although it might be doable with a DesiredCapability).
I'm guessing that one of the first things the WebDriver instance does upon loading a page is invoking the methods in the AlertOverride class, so that we can get a handle on alerts/confirmations as soon as possible. This would also make sense as to why we can't get a handle on confirmation boxes that are created on the onload functions.
Let's say I want to see how "copy" is implemented in the Dictionary class. Currently I use the system browser and manually traverse the inheritance hierarchy (bottom up) until I find the class that implements the given message. Is there a one-liner for the workspace, that would open the system browser at the right location?
( SomeClass whichClassIncludesSelector: #initialize ) browse
That will browse the class that implements the message #initialize.
Personally, I just type the #selector in a workspace, highlight it, and hit alt+m to pull up all implementors of the message. Much faster than typing all that code.
(SomeClass>>#someSelector) browse
works as well in my Pharo image.
works as well in my Pharo image.
And since you want to find a class first, you can combine it with previous example..
((SomeSubclass whichClassIncludesSelector: #someSelector)>>#someSelector) browse
to directly go to given method.
If you are using OmniBrowser, you can use the contextual menu Implementors in Hierarchy... to only browse the implementors of a selector in the hierarchy of the Dictionary.
OmniBrowser also provides an Inheritance Browser. Select any implementation of #copy and click on the Inheritance button in the toolbar. It will show you a hierarchical view of all implementors of #copy.