How can I modify a GWT menu - grey out some entries, put a checkmark next to others, according to my application state?
My app has a menu bar across the top - File, Edit, View, Insert, Format, etc. I have a number of paragraphs, each of which could have a different format. When the user clicks on Format, I want the format menu to show a checkmark next to the menuItem that corresponds to the format of the currently selected paragraph. If some formats are inappropriate for the currently selected paragraph, I want to grey those menuItems out.
The main issue is when to do the update: (a) when the Format menu button is clicked, or (b) each time my user selects a new paragraph?
I find option (a) more appealing. But how can I detect this? A MenuItem doesn't have any facility for adding event listeners. It could be a mouseClick that I need, but it might be a mouseOver: if the user clicks on the Insert menuItem the Insert menu will appear, but then if the mouse is moved over Format, then the Format menu will appear.
Option (b) sounds simpler, but wastes more processor time.
For my contextMenu (right click on the paragraph), it's much easier, because the menu is only constructed when the right click happens.
I've resorted to using the square-root symbol (√) for a tick. Does anyone know a nicer way? Do I need to use HTML and use " Plain-Format" for my menu item?
Finally, is there a way to disable (grey-out) a menu item so that it can't be selected?
Option (a) sounds better from a conserving resources point of view.
Instead of using the square-root symbol, why don't you use an image (using the com.google.gwt.user.client.ui.Image class)?
I think a more elegant/simple solution might be to use the checkbox class for your menu items. That way you could have automatic ticks/checks instead of having to use an image or the square-root symbol. Also, you will be able to "grey-out" items with setEnabled(false). Otherwise, you will have to write your own widget or add your own functionality to your menu labels in order to "grey-out" items.
Related
I have a main form...imagine that...that for most of my users will be the only form they use. Naturally, it contains tabs with sub forms.
I have a navigation sub form on the left side of this form that changes based on the user's rights level. Currently, this sub form is all buttons...and 1 always is selected as the default tab stop for that form.
I don't want to highlight any of them at first...and I can remove the highlight by switching off Tab Stops for all buttons. However, I'm not sure that I want to remove that functionality all together...and it still highlights a button. I'd just like for there to not be a default button highlighted.
As you can see, Add Course is 'selected'. I can't seem to find the correct terminology to search for a way to do this. I tried using a smaller button set behind another button, but since it has the focus, it moves to the front. Using a text field with the same colors as the background shows the cursor in a random, blank area...not visually ideal.
I'm sure that there is someone here clever enough to have this figured out. Please enlighten me. I don't care if this can be handled in VBA code or through design view.
"Focus" is the word you're looking for - you don't want any visible control to have the focus when opening the form.
The easiest method is an invisible button: create a button with Transparent = True, and an empty OnClick (i.e. the button does nothing, even when accidentally clicked).
Move this button to the top in the Tab Order, so it has the focus when opening the form.
But if your users use TAB to walk through the buttons, there will be one position where the focus disappears (when circling around from the last to first control). I don't know if it will confuse them.
Create a button on the main form itself.
Named is cmdDummyButton with the following GotFocus event code.
Set the tab order property to 0 (ie first)
Make the button transparent.
This will cause no control on the form to have the focus when it starts up.
Private Sub cmdDummyButton_GotFocus()
Static IveHadFocusAlready As Boolean
If Not IveHadFocusAlready Then
Me.cmdDummyButton.Enabled = False
IveHadFocusAlready = True
End If
End Sub
Sweet.
I have a general question for GWT Activity and Places paradigm realization
For example, I have a place "productList" and appropriate view ProductListView. A have a table with some Product entity in each row. I wanna to double click on row and got popup window which allow me to edit Product in doubleclicked row. How to implement it? Should I provide new place "editProduct" for this activity?
A popup dialog is not a place - users would not expect to see it when they press the back button. So there is no need to create a special EditProduct place.
You can think of "places" as something that users may want to see when they click on Back or Forward buttons, or something they want to bookmark.
We can able to create lot of fields and forms using remedy developer. i just wanted to know whether any options for giving tooltip to those fields so that users can better understand over the respective field.
For eg: If there is a field say price, say tooltip like decimal values accepted or something reasonable.
Try to edit fields' "Alternate Text" attribute for a small tool tip.
If you want a bigger one like in overview console table etc., run AL log and see which AL opens it.
Hover option is available for ARS 7.6 or later, and here are some info for you from BMC docs:
Using the message action to create tooltips
Tooltips are brief informational messages that are displayed in response to a user action with an object on the screen. Tooltips are commonly used to provide descriptions of menu items, toolbar buttons, or other objects.
In AR System, tooltips can be applied to tables, attachments, field labels, or field data.
A tooltip can be displayed either by hovering the mouse over an area in a form or by clicking an object such as a button. For table fields, a tooltip can be displayed by hovering over a row. The tooltip displays the values for the row being hovered over, even if that row is not the currently selected row.
When a tooltip appears by hovering, it is closed when the mouse is moved outside the tooltip's border. When a tooltip appears by clicking (for example, when a tooltip appears when you click a button), it is closed when you click anywhere outside the tooltip's border.
A tooltip also can be dismissed by pressing the Escape key.
Tooltips can include URL links, which can be added through a Set Fields action.
Implementing tooltips
Tooltips are implemented through two types of AR System features:
HOVER event
Active link Message action
I have a menu drop down action in the coolbar. It has 3 sub items that form a radio group. I would like to change the icon shown in the coolbar when the user selects one of these options.
I've googled and seen that I should look at:
org.eclipse.ui.commands.ICommandService.refreshElements(String, Map)
and
org.eclipse.ui.commands.IElementUpdater
Its probably the right thing to look at exception its not enough information. One or two small code snippets will be excellent.
Thanks in advance.
Ok basically if you don't want to use a "custom" control the what to do it is to have your handler (handler that is linked to the specific command) implement IElementUpdater. When every the toolbar item gets shown or clicked on (i.e if the user selects on the the radio buttons) the method: updateElement(UIElement element, Map parameters) gets called.
The element has a setIcon() method and this is what i used to change the icon of the menu drop down action.
Every update to the Coolbar points to the specialization of the WorkbenchWindowControlContribution class.
This bug 186800 has some code example in it which can be of interest.
Ok so could anyone please help me out with the VB for auto entering information into a text box, by clicking certian label boxes on a form in access 2003.
I built this thing using label boxes as "sort of links" instead of button for navigation/commands etc, and I have this power point presentation viewer on one of the forms.
The client has numerous briefings and this will be great for me to provide a little something for them to be able to get their briefings from one spot.
So if I list the choices for the month out on the form as label boxes (with little mouse move events to resemble a web link) and they click on it to select, then the only way I know how this may become functional is if I add a text box to the form, and make it not visible, that way I can name it, and add it to the file path string and it works.
But how do I create the action of clicking the "link" result in "NVOWEFDJHF" into text box?
Anyone know a better way?
Yeah I am an amateur, so I am ALWAYS willing to learn a better way.
Thanks very much!
I would recommend using a transparent button instead of a label.
The main reason is that you can set the mouse cursor to become a small hand when you hover over the button, so it gives back information to the user that this can be clicked.
With a label, the user cannot make the difference between a normal label and one that can be clicked since there is no visual cue.
To create a button that resemble a label:
Add the button to the form
In the properties for the button, set the following:
Format > Back-Style: Transparent
Other > Cursor on Hover: Hyperlink Hand
Other > Name: btAutoFill (or whatever name you want)
If you want the button to resemble a link a bit more, you can change it's caption's format, making it blue and underlined if you wish.
Now if you view the form, you will see that the mouse cursor will change when you move over the 'button label'.
To automatically fill-in other controls when you click your button, add the code to handle its OnClick event (in the button's properties, under Events > On Click, choose [Event Procedure]):
Public Sub btAutoFill_Click()
myTextBox = "NVOWEFDJHF"
End Sub
Quick air code here...
Private Sub MyLabel_OnClick()
Me.MyTextBox = "NVOWEGDJHF"
End Sub
Don't forget your error handling.
You're making this as difficult as possible by using an approach that is not Access-native. The simplest way to make the labels "clickable" is to put a transparent command button over them. But that means the MouseMove events will go to the command button, so you'll have to have its events do the MouseOver actions.