### Problem description
Merging my previous PRs, #1660 and #1658 has resulted in a conflict
causing an application crash due to a missing `ImGui::BeginDisabled();`
in the `PopupSelect` class. Specifically, none of the code related to
offset validation made it into the final merge. This PR fixes the crash
by reintroducing the deleted lines.
### Additional things
The nightly release build seems to be unaffected by the crash, most
likely because ImGui's `DisabledStack` assertions are only enforced in
Debug mode. The offset validation was still missing before this fix.
### Problem description
In previous versions of ImHex, all tool windows were implemented as
static popups fixed in the upper left position of the hex view. This PR
refactors all tool popups to use floating windows that can be dragged
around by the user, or closed with a dedicated close button on the title
bar. These popup also support a stylable transparency when the user is
not hovering their mouse over the window.
### Implementation description
I rewrote the logic in `ViewHexEditor::drawPopup()` to use a custom
`ImGuiExt::BeginHoveringPopup` function for rendering the popup windows.
This new function is an almost exact replica of the built-in
`ImGui::BeginPopupModal`, except it does also displays the default
window title bar with a close button.
A second custom function, `ImGuiExt::PopupTitleBarButton` was also added
for rendering small icon-based buttons into the title bar of the parent
popup window. This new function was used to implement an optional
"Pinning" feature that individual popup implementations can specify. If
a window is pinned, it won't close automatically when its main action is
executed. For example, the "Select" button on the Select dialog will
close the popup by default, unless the window is pinned.
### Screenshots
Popup dialogs before:
Popup dialogs after:
https://github.com/WerWolv/ImHex/assets/45818400/99d1a628-8ac1-40ac-9146-9062091bb0db
### Additional things
- When the user stops hovering their mouse over a popup window, it
becomes semi-transparent, making it easier to see the content behind it
- This PR also introduces the `styles.imhex.popup-alpha` style, making
the transparency effect configurable, including the ability to disable
the effect completely by setting `popup-alpha` to `1.0`.
- Fixed a bug that caused some popup windows to ignore the Enter and the
KeypadEnter keys. With this PR, all tool windows will execute their main
action when the user presses either one of the two Enter keys, and will
also close automatically unless the window is pinned.
### Possible changes and improvements
- Should the transparency effect be disabled if a window is pinned?
- Should the transparency factor be modifiable on the Settings/Interface
page?
- A keyboard shortcut could be added for quickly pinning / unpinning the
current window.
- Can the pin icon stay on the left, or should it be moved next to the
close button, with a similar circular background?
---------
Co-authored-by: WerWolv <werwolv98@gmail.com>
### Problem description
This PR offers two improvements:
1) When selecting / jumping to an offset that falls within the current
viewport of the scroll view, the scroll offset will no longer force the
selected byte to the top of the view. Instead, the scroll offset will
only be changed if the selected byte is outside the current view.
2) In case a wrong offset is entered into the Select or Goto dialog
(e.g. and offset beyond EoF), the dialog's button will be disabled.
### Implementation description
For the first change, I modified the logic that recalculates the
`m_scrollPosition ` based on the current byte offset.
For the second change, I added validation logic to both popups to ensure
that the entered offsets are valid (using `provider->getActualSize()`).
In case of the Select popup, I wrapped the button into an
`ImGui::Begin/EndDisabled` to enforce the validation check.
Fixed console error messages using doc comment syntax highlights. Fixed
results of find not updating when march case was toggled. Fixed syntax
highlights of nested ifdefs. Fixed editor cursor blinks if OS focus goes
to another window. Fixed Highlights of "\\\"" was incorrectly handled.
---------
Co-authored-by: Nik <werwolv98@gmail.com>
