VuoInputEditorMenuItem.hh

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#pragma once
 
#include <QtGui/QIcon>
 
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdocumentation"
#include <json-c/json.h>
#pragma clang diagnostic pop
 
class VuoInputEditorMenuItem
{
public:
    VuoInputEditorMenuItem(string title = "", json_object *value = NULL, const QIcon *icon = NULL, bool isEnabled = true)
    {
        this->value = value;
        this->title = title;
        this->icon = icon;
        this->isSeparator = false;
        this->isEnabled = isEnabled;
    }
 
    ~VuoInputEditorMenuItem()
    {
        if (icon)
            delete icon;
    }
 
    void addItem(VuoInputEditorMenuItem *item)
    {
        childItems.push_back(item);
    }
 
    void addSeparator(void)
    {
        VuoInputEditorMenuItem *sep = new VuoInputEditorMenuItem;
        sep->isSeparator = true;
        childItems.push_back(sep);
    }
 
    static void buildMenu(QMenu *menu, QActionGroup *actionGroup, VuoInputEditorMenuItem *item)
    {
        for(std::vector<VuoInputEditorMenuItem *>::iterator it = item->childItems.begin(); it != item->childItems.end(); ++it)
        {
            QString title = QString::fromStdString((*it)->title);
 
            // Qt uses '&' as a prefix for keyboard shortcuts.
            // These menus never have shortcuts, so double the ampersands to ensure they're visible.
            // Example: VuoTimeFormat
            // https://doc.qt.io/qt-5/qmenubar.html#details
            title.replace("&", "&&");
 
            if ((*it)->childItems.size() > 0)
            {
                QMenu *submenu = new QMenu(menu);
                submenu->setTitle(title);
                if ((*it)->icon)
                    submenu->setIcon(*(*it)->icon);
                menu->addMenu(submenu);
                buildMenu(submenu, actionGroup, *it);
            }
            else
            {
                if ((*it)->isSeparator)
                {
                    menu->addSeparator();
                    continue;
                }
 
                QAction *action = new QAction(title, menu);
                if ((*it)->icon)
                    action->setIcon(*(*it)->icon);
                action->setEnabled((*it)->isEnabled);
                action->setCheckable((*it)->isEnabled);
                action->setData(QVariant::fromValue((*it)->value));
                menu->addAction(action);
                action->setActionGroup(actionGroup);
            }
        }
    }
 
private:
    json_object *value;
    string title;
    const QIcon *icon;
    vector<VuoInputEditorMenuItem *> childItems;
    bool isSeparator;
    bool isEnabled;
};