1 files changed, 129 insertions, 0 deletions
diff --git a/basemenu.h b/basemenu.h
new file mode 100644
index 0000000..bd48c4f
--- /dev/null
+++ b/basemenu.h
@@ -0,0 +1,129 @@
+#ifndef BDE_BASEMENU_H
+#define BDE_BASEMENU_H
+
+#include "widget.h"
+
+struct MenuItem {
+    const char *action;
+    const char *label;
+    int         state_id;
+    MenuItem   *submenu;
+    unsigned long command_parameter1;
+    unsigned long command_parameter2;
+    const char   *command_parameter3;
+    const char *desc;
+    Event       evt;
+    unichar     shortkey;
+};
+
+typedef MenuItem PulldownMenu[];
+
+struct MenubarItem {
+    const char *label;
+    MenuItem   *submenu;
+};
+
+typedef MenubarItem MenubarMenu[];
+
+class PopupMenu : public Widget {
+
+public:
+    // The result of the user interaction:
+    enum PostResult { mnuPrev, mnuNext, mnuSelect, mnuCancel };
+
+protected:
+
+    MenuItem *mnu;  // The menu.
+    int count;	    // Number of menu items.
+    int top;	    // If the menu is too long to fit the screen,
+		    // 'top' points to the first visible item.
+    int current;    // The highlightd item.
+    PostResult post_result;
+    PopupMenu *parent;
+
+private:
+
+    void draw_frame();
+    int  get_optimal_width();
+    int  get_item_optimal_width(int item);
+    void update_ancestors();
+    void complete_menu(PulldownMenu mnu);
+    void reposition(int x, int y);
+    void end_modal(PostResult rslt);
+
+protected:
+
+    virtual void show_hint(const char *hint) = 0;
+    virtual void clear_other_popups() = 0;
+    virtual bool get_item_state(int id) = 0;
+    virtual Dispatcher *get_primary_target() = 0;
+    virtual Dispatcher *get_secondary_target() = 0;
+    virtual PopupMenu *create_popupmenu(PopupMenu *aParent, PulldownMenu mnu) = 0;
+    virtual bool handle_event(const Event &evt);
+    virtual void do_command(unsigned long parameter1, unsigned long parameter2,
+			    const char *parameter3) = 0;
+
+public:
+
+    HAS_ACTIONS_MAP(PopupMenu, Dispatcher);
+    HAS_BINDINGS_MAP(PopupMenu, Dispatcher);
+    
+    PopupMenu(PopupMenu *aParent, PulldownMenu aMnu);
+    void init(PulldownMenu mnu);
+    PostResult post(int x, int y, Event &evt);
+
+    INTERACTIVE void prev_menu();
+    INTERACTIVE void next_menu();
+    INTERACTIVE void select();
+    INTERACTIVE void cancel_menu();
+    INTERACTIVE void screen_resize();
+
+    INTERACTIVE void move_previous_item();
+    INTERACTIVE void move_next_item();
+    INTERACTIVE void move_first_item();
+    INTERACTIVE void move_last_item();
+    
+    // from base Widget class:
+    virtual bool is_dirty() const { return true; }
+    virtual void invalidate_view() {}
+    virtual void update();
+};
+
+class Menubar : public Widget {
+
+protected:
+
+    MenubarItem *mnu;
+    int count;
+    int current;
+    bool dirty;
+
+    void set_current(int i);
+    int get_ofs(int item);
+    virtual void refresh_screen() = 0;
+    virtual PopupMenu *create_popupmenu(PulldownMenu mnu) = 0;
+    virtual bool handle_event(const Event &evt);
+    
+public:
+
+    HAS_ACTIONS_MAP(Menubar, Dispatcher);
+    HAS_BINDINGS_MAP(Menubar, Dispatcher);
+
+    Menubar();
+    void init(MenubarItem *aMnu);
+    void exec();
+
+    INTERACTIVE void select();
+    INTERACTIVE void next_menu();
+    INTERACTIVE void prev_menu();
+    INTERACTIVE void screen_resize();
+
+    // from base Widget class:
+    virtual bool is_dirty() const { return dirty; }
+    virtual void invalidate_view() { dirty = true; }
+    virtual void update();
+    virtual void resize(int lines, int columns, int y, int x);
+};
+
+#endif
+