Why does this expand indicator exists here? All it does is make the Document: title disappear and reappear. I've looked all over the textbox properties but don't see anything that would make that show up.
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I'm working on adding support in my app for full-height sidebars, as introduced in macOS 11.
The trick is, when the window tab bar is visible, I want to turn the full-height sidebar off. The two don't mix well when the sidebar content is different in each window, as it is in my app. See Xcode for an example of what I want to do (View > Show Window Tab Bar). See Preview for an example of what I want to avoid (open two multi-page PDFs and put them in a single tabbed window).
What's working:
I observe the window's tabbedWindows property, and toggle the fullSizeContentView flag in its styleMask accordingly. Thus the window's style updates as needed when I hide and show the tab bar.
What's not working: I need to have a sidebarTrackingSeparator item in my toolbar in order to have some items above the sidebar. But when fullSizeContentView is off, that item appears as a plain separator. I don't want it to be visible at all in that state.
There isn't a straightforward way to hide a toolbar item, especially if it doesn't have a view, which it turns out this one doesn't.
I tried removing the separator item and re-adding it when the window state toggles, but that leads to Cocoa throwing exceptions, complaining that only one tracking item can be registered at a time. This would seem to be a bug, but Xcode manages it somehow.
So how can I properly toggle my window and toolbar state without having that visible separator?
It looks like I've solved the problem by saving the separator item when I see it in toolbarWillAddItem, and then returning it from toolbar(_:itemForItemIdentifier:willBeInsertedIntoToolbar:) to avoid having a new instance created. That way, removing and re-adding the item works without having exceptions thrown.
The last little snag was to not remove and re-add the separator blindly. The window state may have been preserved across app launches, so I needed to not make assumptions about how the window would initially appear.
I want users entering data across multiple tabs to be able to see at a glance whether and where they have validation errors / fields not populated. I can indicate errors for the selected form in the form body, but for unselected tabs I want to use red color and/or a red icon in the tab to indicate if it is failing validation.
I see various posts explaining how to use a custom renderer or effect to set tab text color for all tabs or selected/unselected tabs (e.g. here, here, here modifying the framework itself and here). However, the posts I've seen do not show a way to change the color of a SPECIFIC tab. In this case I want to either change the color or add/remove an error icon that would show beside the Title in the tab header based on the validation results for the page accessed via the tab. Is that possible?
Update:
I also found this - seemed more promising because it does seem to change tabs based on their positions or title rather than just on whether they were selected or not, but it seems to be dependent on using bottom tabs, which I'm not doing.
I also have found this, and element.Children[i] does get me the ContentPage from which I can determine what color I want the tab's test to be, and it's possible that the tab variable that's returned by activity.ActionBar.GetTabAt(i) somehow gives me access to update the tab's text color, but I'm not seeing any method or property that seems promising - basically I still don't see how to get access to the UITabBarItem so I can call SetTitleAndAttributes on it to set its text color. (Also, if I declare the tab variable by its type of Android.App.ActionBar.Tab instead of using var, I get a note saying that type has been deprecated. It seems upon investigation that the whole ActionBar class has been deprecated. But how can that be when it still exists as a property of Android.App.Activity, which is not deprecated?)
Many thanks for your assistance!
I want a user to be able to select item(s) in my CListCtrl and then click on a button to act on those items. But when the focus is lost from the list, the selection is no longer shown, even if I set 'Always show selection' to true:
This happens both in the dialog test facility, and in my compiled application. I use list-mode, and have no icons, only text.
To reproduce:
Create a new dialog in the resource editor
Place a list-view control.
Set View = List in the properties
Set Always Show Selection = True in the properties
Add a button to the dialog
Press Ctrl-T to test the dialog
Select item(s) on the list, then press the button
..and the text is not visibly selected at all. Or is it... I can just
barely sort of see some very very faint selection in my screenshot - I
think. It's so faint I am not 100% certain it's there!
In addition to my comments: well, there you have it - they are selected, and in a different color, but it seems your screen settings are a bit off. Maybe your color settings, a high contrast mode, or the color setting for selected items in Windows.
The gray color in your screenshot is: #f7f3f7 - light gray, so you might have a problem seeing it, depending on the settings.
An interesting and very lightweight tool to check those things (zoom in, see the color values) is ZoomPlus. I use it every day, and there seems to be source code available too.
I'm working on a theme in Sony's Theme Creator and thus far, I'm pretty happy with my theme and its progress...
There is one problem however - I simply cannot work out what a particular element/field is named in Theme Creator and thus cannot change this element/field.
Either that or I have already made the change and it's not taking affect.
Further to this, I have experimented with changing anything that appears to be the right element/field (based on the name), however none have thus far had an affect.
The element/field is the blue parts below - they should be the same color as the bar at the bottom of the screen...
Any help would be appreciated.
Those elements you are referring to should be the "Status Bar" and the "Action Bar" (Top). If you aren't sure which item in the left list corresponds to which element on the right, you can always press and hold the mouse button over the item in the list and it should show up as highlighted in yellow in the preview pane.
Somehow, even though I have "Descriptions" ticked in the properties area, I've managed to somehow collapse the field descriptions area and it's not visible at the bottom of the properties window. There doesn't seem to be a "split" handle to drag upward, either (believe me, I've tried!).
Does anyone know how to get the field descriptions back?
Here's what I'm seeing:
By complete chance, I happened across the solution:
I left the properties window open and went to a code pane, and a blank field descriptions box appeared:
Dragging it upward reset the location of that splitter, making them visible again when viewing a designer:
Hopefully that will help someone else searching (as I did) to get their field descriptions back!