Local adjustments tools used globally - Laspotmain (#6928)

* First step LA globally

* fixed several GUI bad behavior

* better behavior shows additional settings

* Improve transition in main

* First step hide-show invers and scope

* Hide show invers and scope step2

* hide show others inverse and scope

* Try to improve

* Change windows.yml and appimage.yml

* In Preference set choice for default Spot Method

* Optimization call idle_register

* forgotten delete mainfp

* Re-enable sliders scope in colorlight - shadows - vibrance - move setting checkbox others settings

* Fixed bad behavior hide - show

* Optimize behavior

* Bad behavior scope when changing method

* Clean and comment code

* disable preview mask and modif for cbdl and retinex

* Fixed preview deltaE mask and modif log encode - exposure - new button preview color and light

* Button preview deltaE - exposure

* Button preview SH

* Button preview Vibrance

* Improce code using mask

* Fixed several bad behavior - preview TM and Contrast

* Preview log button

* Preview Ciecam button

* Preview common mask button

* Disable Preview button in settings when not used in tools

* Change call to controspotpanel in improcoordinator

* Change Local adjustments title to Selective Editing

* Change default value spotmethod in option

* Missing cddl in preview settings

* Change parameter setting spot type

* put selective editing tab just after exposure tab

* Disable preview ΔE button when another is enabled

Only one button should be active at any given time.

* Deactivate preview ΔE buttons when switching spots

* Change tooltip Spot method

* Change selective editing position

* Remove duplicate line in language default

* Remove appimage.yml windows.yml

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Co-authored-by: Lawrence Lee <45837045+Lawrence37@users.noreply.github.com>

rtgui/guiutils.h

@@ -756,6 +756,30 @@ class SpotPicker : public Gtk::Grid
         void spotSizeChanged();
 };
 
+/**
+ * Enforces the rule that zero or one registered toggle button is enabled at any
+ * given time.
+ */
+class OptionalRadioButtonGroup
+{
+    Gtk::ToggleButton *active_button{nullptr};
+
+    void onButtonToggled(Gtk::ToggleButton *button);
+
+public:
+    /**
+     * Returns the toggle button that is active, or null if none are active.
+     */
+    Gtk::ToggleButton *getActiveButton() const;
+    /**
+     * Adds a toggle button to this group.
+     *
+     * If the provided button is active, any existing active button in this
+     * group will be deactivated.
+     */
+    void register_button(Gtk::ToggleButton &button);
+};
+
 inline void setActiveTextOrIndex(Gtk::ComboBoxText &comboBox, const Glib::ustring &text, int index)
 {
     bool valueSet = false;