I have the following requirement (sorry, but I'm quite new to JavaFX).
I need to have a custom TextArea that supports not only entering text but also entering a kind of macro.
This Macro has a unique ID and an associated text. The text should be displayed in the TextArea but with an e.g. light grey background. This is because it should behave as a unit.
You should not be able to click inside the macro and add a char there. The cursor should be placed behind the macro. And is you press just backspace the complete macro should be deleted.
If you call something like getRawContent() of the custom TextArea you should get a placeholder for the macro and not the associated text like:
getRawContent()
==> "This is text part one MACRO:132 This is text part two"
If the macro 132 has the following text associated "XXX123XXX", you will see inside the custom TextArea:
This is text part oneXXX123XXXThis is text part two"
But the text XXX123XXX has a light grey background to show that this text is associated with a macro and could be deleted, copied, and so on as a whole unit. Could be italic as well as in the above line. Should be only a bit different to the generic text.
Could someone assist me?
My Custom Control works now. I used an Eventfilter to prevent the internal Eventhandler to process the keypressed events in order to set the caret position behind a macro or delete the complete macro when DEL or BACKSPACE is pressed, this works.
And I use a Mouselistener to prevent that someone clicks and set caret position inside a macro.
So now I have only the problem left to mark the text somehow that the user can see what is normal text and what macro content.
Maybe I close here and open a new question.
Related
I would like to have a text box and a button in my GUI. When the button is pressed, a history window will come up, and if the user selects a previous entry the text that they have highlighted in the edit box will be overwritten.
It should work like copy-pasting, whatever is selected in the history window should be pasted over what is selected, or the new text should be added wherever the cursor is.
Is there any way in Matlab to do this? Is it possible to access what is highlighted in an edit box?
With vanilla Matlab this isn't possible. It appear that Mathworks is in the process of expanding what they support with GUIs (survey 1, survey 2), but as of yet they don't allow this.
One possible workaround is using findjobj.m, by Yair Altman. He discusses edit boxes in this post
You can trace findjobj.m for your text box to find 1 or 2 lines of code that are needed so you don't have to carry around all 3,400 lines of it.
Then all you really need to do is get the selected indices and work from there.
javaHandle = findjobj(editBoxHandle);
startSelect = get(javaHandle,'SelectionStart');
endSelect = get(javaHandle,'SelectionEnd');
Once you have the indexes of what text is selected, it becomes almost trivial to replace that text with the new text.
text = editBoxHandle.String;
editBoxHandle.String = [text(1:startSelect) newText text(endSelect:end)];
One thing to note, when the user clicks the button the text box will lose focus, and it will no longer be clear what text is selected. You can remedy this by giving focus back to the text box, and re-selecting what was selected in the button's callback.
uicontrol(editBoxHandle); %Give focus to the edit box, selecting the entire text
javaHandle.select(startSelect,endSelect); %select/highlight the correct stuff
This will highlight the text that will be replaced with the users selection
I have a table cell of fixed large size, and in it is nothing but a Plain Text Content Control, whose default placeholder text "Click here to enter text" takes up only a small portion of that table cell.
The problem is that if the user clicks anywhere in the cell but outside of the control's placeholder text, then starts typing, the entered text will not be part of the control and will not be subject to the control's style or any other control properties.
So - other than adding a lot of dummy characters to the placeholder text, which doesn't seem to be predictable in its word-wrap behavior, is there a way to make the control's placeholder text (or, in general, its click-boundary) fill the entire table cell?
UPDATE actually there were some carriage returns after the control that I was not aware of; after deleting those, clicking anywhere in the cell as long as the x coordinate if the click is greater than or equal to the leftmost x coordinate of the control will edit the control text value as desired. If you click leftward of the control, you will end up editing whatever fixed text exists to the left of the control, i.e. a fixed text label. Still strange. The workaround here was to split cells for all multi line text entry areas, such that the label is on its own cell, and the control is now at the leftmost edge of its cell.
Content controls do not support something like expanding to the surrounding container. They will always use only the space that is required to render their content.
If you want to prevent users from clicking and typing text outside of the control, you could use the following approach:
Put a rich text content control around your table/table row/cell
Put the plain text content control as a nested content control in the table cell (the plain text content control must be non-vanishing for this to work)
Make the outer content control read-only
Now the only thing the user is allowed to edit is the inner plain text content control. The downside of this approach is that your document now contains areas that are locked. This has an impact on usability, first, because, it may not be obvious to the user why certain areas cannot be modified, and second, because a lot of standard actions do no longer work if part of the selection is locked (e.g. Select All > Update ToC).
I am developing an OpenOffice Writer template that can be used to fill in reports for a child-care centre.
There are some standard outcomes, comprising long sentences, and I want the user to be able to select the appropriate sentence from a combo box. I have entered the sentences into a table in Openoffice Base database, which is then connected to a series of combo boxes in a Writer template. However, when the user choose an option that contains a very long sentence, only the text up to the length of the combo box is visible.
What I want to do is have the selected value of the combo-box wrap over several lines when selected so that all the (very long) text appears in the selected box when the user chooses a long sentence from the combo.
I have been looking through the properties of the combo box control, but have yet to identify one that will allow the selected value in the combo box to word-wrap (so that I could make the combo-box several lines in height such that the entire sentence would fit into the box).
Any pointers on how I could do this would be much appreciated.
thanks,
David.
Thanks Jim K, that was helpful. In the end, what I wound up doing was creating a textbox which I named "selectedOutcomeATextBox" immediately below my combo box which was named "OutcomeCombo".
I then attached the following macro code to the textModified event associated with the "selectedOutcomeATextBox":
Sub UpdateOutcomeA
Dim Doc As Object
Dim Form As Object
Dim Ctl As Object
Dim newCtl as Object
Doc = ThisComponent
Form = Doc.DrawPage.Forms.GetByIndex(0)
Ctl = Form.getByName("OutcomeCombo")
newCtl = Form.getByName("selectedOutcomeATextBox")
newCtl.Text = Ctl.Text
End Sub
I also set the "Printable" property of the "OutcomeCombo" to "No", so that when the document prints, the combo box itself does not appear on the printed page, but the "selectedOutcomeATextBox" textbox which has had its value set by the macro when I choose a value from the combo box does appear with the desired text. I also set the "TextType" property of the selectedOutcomeATextBox" text box to "Multi-Line", so that extra long text will wrap to the next line, thereby showing the very long strings that are stored there.
Thanks heaps Jim K.
cheers,
David Buddrige
Apparently combo boxes do not have the MultiLine attribute. The question was asked a few years ago here but was not solved.
One alternative that requires some macro programming is to use a single multi-line text field and then make a scroll bar button that changes the choice. Instead of a scroll bar, two buttons could be used to change the choice (Previous / Next), or even a list box control. Using a list box control in this way would have the advantage that they could see all the choices at once, like a combo box.
Another approach is to break up each sentence and display the parts across several lines of a list box. Then when one line is clicked, all the lines of a sentence are selected at once, using an event listener for the list box. This could be shown in addition to an ordinary editable multi-line text box, in case none of the answers in the list are wanted.
One more idea: Radio buttons can have multiple lines, so dynamically show radio buttons, one for each sentence. A dialog window could be displayed to hold the radio buttons. The result of the dialog would be used to fill the multi-line text field.
Or you could just live with the truncated sentences. Maybe it would help to make the control a little wider, or abbreviate the sentences.
Whenever I write an auto-completed function call and start typing something, a black rectangle is drawn around the input, like below:
Why does eclipse do this and how can I turn it off? I've looked the different editor settings but I haven't found anything that describes this behavior.
This is called place holder. Keep caret anywhere in between the class methods and inside the class body and type public and press Ctrl + Space and select public_method option. Then you will get a template looks like this:
Here return_type is covered with rectangle and highlighted this means you can type the return type as void, int etc and this will appear in this rectangle box.
Use TAB key to traverse next place holders i.e name is also covered with rectangle box. After typing the return type when you press TAB key you will jump to next place holder(i.e name).
You can go back to the previous place holder by pressing Shift + TAB key. Green color caret represent the end of place holders.
While you are in any place holder if you press Enter key you will be directly taken to the end of the place holder(i.e green caret).
Check the template grammar for public_method template here Windows > Preferences > Java > Editors > Templates
It looks as
public ${return_type} ${name}(${}) {
${cursor}
}
You can edit this. If you remove ${cursor} then green colour caret will not appear and so on.
You can turn if off by
Deleting template(Not recommended)
Editing template grammer
Or just by pressing Enter key(Recommended)
Also check the grammar of static_final template. Here you will get the drop down menu along with rectangular box.
Any one know how i can create a text area which displays lines of text which can not be edited but allows you to edit the bottom most line for text.
basically in a similar fashion to embedded consoles inside applications that allow you to run code direct on the application.
currently using a textview i can go and edit the code above and the output response are also editable.
It's possible using a GtkTextView, but not trivial. You have to create a tag that makes the text uneditable, and apply it from the beginning of the buffer to just before the end position. Then when you receive and process input, extend or re-apply the tag to cover that line of input and your program's response to it.
Here's an example of it being done:
creating the tag
applying the tag