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#ifndef BDE_BASEMENU_H
#define BDE_BASEMENU_H
#include <cstring>
#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
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