We can now Edit Long Comment and Edit Header Comment.
Changing the number of lines in a long comment exposed a bug in the
display list update. Fixed.
Running the WinForms version trashed the column widths, which exposed
the fact that the default column widths were set too narrow. Fixed.
On an unrelated note, hitting undo/redo quickly will sometimes leave
you scrolled to the bottom of the code list. Some sort of command-
handling race in the WPF framework? (Not fixed.)
The dialog is pretty straightforward. This is the first editor that
can cause a partial update -- if you edit a label, only the lines
that refer to that label are regenerated -- so I added the code for
partial display list updates as well.
Also, while working on this I noticed that long comments were getting
ellipsized at a bad place. The column width for the semi-hidden
column used for notes and long comments wasn't getting set. After
fiddling with it a bit I determined that it really needed to be set to
the sum of the widths of the rightmost four columns, and updated
whenever column sizes change. This was easier to do than I expected.
I may actually be getting the hang of WPF.
I haven't figured out how to make the AppendText(text, color) extension
work right with the WPF version of RichTextBox, but I was able to work
around the issue, and it's not really worth sinking time into.
The order of items in XAML was tied to enum values, which isn't
great. Since the value gets stored in the settings file, we want
the values to come from the code-behind. So now we provide an
ItemsSource for the combo box from the code-behind instead of
defining the items in XAML.
Took another swing at doing things WPF-style. Ended up with TextBox
objects backed by integer fields, which worked pretty well but
didn't get the min/max values. Set up validation instead, once I
figured out how to make it update in real time.
Relatively straightforward, thanks to the way WPF ComboBoxes work.
Spent some time fiddling with the column width text boxes, but
ended up with essentially the WinForms approach.
Notable items include the column show/hide buttons, which were
straightforward except for the "determine the default width" part,
and the font picker, which is no longer a standard dialog. The
latter was complicated by the absence of a good way to detect
whether a font is mono-spaced or not without calling back into code
meant for WinForms font manipulation (with a dash of PInvoke).
Yay WPF.
Also, enabled character ellipsis for code list items.
Added the progress dialog as a relatively generic thing (it was
implemented as a pair of dialogs in the WinForms version, for no
very good reason). Generation and assembler execution works.
Instead of traversing a single dual-element stack, use separate
stacks for forward and backward.
Record whether the jump was from a Note, so we select the right
set of lines when we return to it.
If nothing is selected, push the current top position on, instead
of doing nothing at all.
Correctly handle the case where somebody is trying to jump to the
current position.
These just needed to have methods added to the command definitions.
Also, added a style to the toolbar buttons so they fade when not
enabled.
Also, fixed the DataFileLoadIssue dialog, which was seriously broken.
I was setting the window size and letting the contents fill to fit.
Now I'm setting the content size and letting the window size itself
to fit around it. The latter feels like it'll hold up better as
things change.
Getting the layout just right got a little wordy in XAML. There's
probably a way to make a Grid do what I want. This'll do for now.
Also, fixed the labels on the buttons in DiscardChanges, which were
reversed.
Now preserving column widths for the three DataGrids and the main
ListView. In theory the various grids would conveniently auto-size
to the content, but in practice that doesn't work well with
virtualization.
There is, of course, no simple "the width has changed" event
provided by the control. On the plus side, you can attach a
property-change event handler to pretty much anything, so once you
know the trick it's possible to make everything work. Yay WPF.
This change pulls in the settings file code, which is mostly
unchanged except when it comes to saving and restoring the window
location and size.
The old system has been replaced with a PInvoke-based version that
calls the underlying Win32 window placement code. This is more
likely to be correct when multiple displays are in use, and can
record the un-maximized size of a maximized window. It leaves a
nasty XML string embedded in the config file, but it's not really
meant to be human-readable anyway.
The sub-window dividers all work completely differently from the way
they did in WinForms, and some of the behavior is a bit obscure
(like noticing when a splitter moves due to keyboard input, and
setting the position in a way that doesn't break the auto-sizing).
Yay WPF.
Still need to preserve column widths.
This turns out to be really important. Otherwise the modal dialog
doesn't stay on top of the application's window stack, which can
make things awkward when ShowInTaskbar is set to false. The easiest
way to ensure this is getting done is to make it part of the
constructor arguments.
The code now passes the parent window in explicitly. WPF MessageBox
avoids this by calling UnsafeNativeMethods.GetActiveWindow(), but
that feels weird. We could assume Application.Current.MainWindow
is the parent, but that seems like it could go quietly and horribly
wrong.
Pretty simple dialog, but it took a while to figure out the best
way to deal with input validation. Works from the various menus as
well as double-clicking on .ORG and address column entries.
Also, moved some stuff around to places that made more sense.
Wired up the double-click handlers for References, Notes, and
Symbols. These jump to the item at the offset that was double-
clicked. Also hooked up the navigate forward/backward buttons
in the toolbar.
Except for the usual WPF gymnastics required to figure out what you
actually double-clicked on, this went smoothly.
The filtering uses the DataGrid View filtering mechanism. The
built-in sorting only operates on a single column, and we really
want a secondary sort on label when the type is used as the key,
so we provide a custom sort method.
Also, fixed some crashiness in the can-execute tests for hints.
If you crash an a can-execute method you get a really unhelpful
failure message. Asserts don't work there either. Yay WPF.
Extract some XAML icons from the VS2017 Image Library. There's no
particular reason to prefer XAML over PNG, but somehow it feels
more forward-compatible. (OTOH, defining images as ControlTemplate
instances is just weird. Yay WPF.)
Restoring the selection works pretty much like it used to, though
I'm capping the total size of the selection because it goes into
stupid-slow mode if you have too many elements.
Getting the item that is at the top of the ListView is astoundingly
obscure, due to the ListView's extreme generality. I make a
simplifying assumption -- that we're using a VSP -- which allows us
to use a simple vertical offset once we've dug the appropriate
object out of the visual tree. (The alternative is to walk through
the list of items and see what's on screen, or perform a hit test
calculation in the upper left corner.) Yay WPF.
The various items in the Actions menu are enabled or disabled based
on the current selection. There's no SelectedIndices property in
WPF ListViews, so we have to do things slightly differently.
The SelectedItems list isn't kept sorted to match the list contents,
so finding first/last item requires a bit of scanning.
Also, rearranged some stuff. I'm trying to keep the old and new
code somewhat parallel, to make it easier to walk through at the end
and see if I've missed something.
Renamed VirtualListViewSelection to DisplayListSelection, because
it's now tied to the DisplayList implementation. Hooked it up to
handle SelectionChanged events.
Also, tweaked the code list item style to remove the one-pixel gap
between items. Somehow I manage to click on the dead zone with
surprising regularity.
