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- #ifndef MC_DLG_H
- #define MC_DLG_H
- #include "mouse.h"
- #include "util.h"
-
- /* Color constants */
- #define FOCUSC h->color[1]
- #define NORMALC h->color[0]
- #define HOT_NORMALC h->color[2]
- #define HOT_FOCUSC h->color[3]
-
- /* Possible directions */
- #define DIR_FORWARD 1
- #define DIR_BACKWARD 0
-
- /* Common return values */
- #define B_EXIT 0
- #define B_CANCEL 1
- #define B_ENTER 2
- #define B_HELP 3
- #define B_USER 100
-
- /* Widget messages */
- enum {
- WIDGET_INIT, /* Initialize widget */
- WIDGET_FOCUS, /* Draw widget in focused state */
- WIDGET_UNFOCUS, /* Draw widget in unfocused state */
- WIDGET_DRAW, /* Sent to widget to draw themselves */
- WIDGET_KEY, /* Sent to widgets on key press */
- WIDGET_HOTKEY, /* Sent to widget to catch preprocess key */
- WIDGET_DESTROY, /* Sent to widget at destruction time */
- WIDGET_CURSOR, /* Sent to widget to position the cursor */
- WIDGET_IDLE, /* Send to widgets with options & W_WANT_IDLE*/
- WIDGET_USER = 0x100000
-
- } /* Widget_Messages */;
-
- enum {
- MSG_NOT_HANDLED,
- MSG_HANDLED
- } /* WRET */;
-
- /* Widgets are expected to answer to the following messages:
-
- WIDGET_FOCUS: 1 if the accept the focus, 0 if they do not.
- WIDGET_UNFOCUS: 1 if they accept to release the focus, 0 if they don't.
- WIDGET_KEY: 1 if they actually used the key, 0 if not.
- WIDGET_HOTKEY: 1 if they actually used the key, 0 if not.
- */
-
- /* Dialog messages */
- enum {
- DLG_KEY, /* Sent on keypress before sending to widget */
- DLG_INIT, /* Sent on init */
- DLG_END, /* Sent on shutdown */
- DLG_ACTION,
- DLG_DRAW, /* Sent for updating dialog managed area */
- DLG_FOCUS, /* Sent on give focus to a widget */
- DLG_UNFOCUS, /* Sent on remove focus from widget */
- DLG_ONE_UP, /* Sent on selecting next */
- DLG_ONE_DOWN, /* Sent on selecting prev */
- DLG_POST_KEY, /* Sent after key has been sent */
- DLG_IDLE, /* Sent if idle is active */
- DLG_UNHANDLED_KEY, /* Send if no widget wanted the key */
- DLG_HOTKEY_HANDLED, /* Send if a child got the hotkey */
- DLG_PRE_EVENT /* Send before calling get_event */
- } /* Dialog_Messages */;
-
- typedef unsigned long widget_data;
- typedef struct Dlg_head {
- int *color; /* color set */
- int count; /* number of widgets */
- int ret_value;
-
- /* mouse status */
- int mouse_status; /* For the autorepeat status of the mouse */
-
- void *previous_dialog; /* Pointer to the previously running Dlg_head */
- int refresh_pushed; /* Did the dialog actually run? */
-
- /* position */
- int x, y; /* Position relative to screen origin */
-
- /* Flags */
- int running;
- int direction;
- int send_idle_msg;
-
- char *name; /* Dialog name Tk code */
- char *help_ctx;
-
- /* Internal variables */
- struct Widget_Item *current, *first, *last;
- int (*callback) (struct Dlg_head *, int, int);
-
- struct Widget_Item *initfocus;
-
- /* Hacks */
- char *title;
-
- int cols;
- int lines;
- void *data;
-
- int has_menubar; /* GrossHack: Send events on row 1 to a menubar? */
- int raw; /* Should the tab key be sent to the dialog? */
-
- widget_data wdata;
-
- } Dlg_head;
-
- /* XView widget layout */
-
- typedef enum {
- XV_WLAY_DONTCARE, /* Place the widget wherever it is reasonable */
-
- XV_WLAY_RIGHTOF, /* Place the widget to the right of the last widget
- * created - note: add_widget creates widgets from
- * the last to the first one.
- */
-
- XV_WLAY_BELOWOF, /* Place it in a column like style */
-
- XV_WLAY_BELOWCLOSE,/* The same, but without any gap between them */
-
- XV_WLAY_NEXTROW, /* Place it on the left margin with Y bellow all the
- * previous widgets
- */
-
- XV_WLAY_CENTERROW,/* The same as previous, but when the dialog is
- * ready to show, tries to center that row of widgets
- */
-
- XV_WLAY_NEXTCOLUMN, /* Place it on the top margin with X behind all the
- * previous widgets
- */
-
- XV_WLAY_RIGHTDOWN, /* Place the widget to the right of the last one with
- * y set so that both y + h and yold + hold are equal.
- This is usefull if the previous widget was a radio,
- which has multiple lines */
- XV_WLAY_EXTENDWIDTH /* Like nextrow, but later on tries to extend the widget
- * to fit in the frame (only for PANEL_LIST) */
- } WLay;
-
- /* Every Widget must have this as it's first element */
- typedef struct Widget {
- int x, y;
- int cols, lines;
- int color; /* If the widget uses it, the color */
- int options;
- int focused; /* Tells if the widget is focused */
- int (*callback)(Dlg_head *, void *, int, int); /* The callback function */
- void (*destroy)(void *);
- mouse_h mouse;
- struct Dlg_head *parent;
- widget_data wdata;
- widget_data wcontainer; /* For children of midnight_dlg, identifies
- * the frame in which they should reside
- */
- char *frame; /* Tk version: frame containing it */
- enum {
- AREA_TOP,
- AREA_LEFT,
- AREA_RIGHT,
- AREA_BOTTOM
- } area; /* Used by X platforms, should stay here always because the size
- of this structure has to be same everywhere :) */
- WLay layout;
- } Widget;
-
- /* The options for the widgets */
- #define W_WANT_POST_KEY 1
- #define W_WANT_HOTKEY 2
- #define W_WANT_CURSOR 4
- #define W_WANT_IDLE 8
-
- typedef struct Widget_Item {
- int dlg_id;
- struct Widget_Item *next; /* next in circle buffer */
- struct Widget_Item *prev; /* previous in circle buffer */
- Widget *widget; /* point to the component */
- } Widget_Item;
-
- /* draw box in window */
- void draw_box (Dlg_head *h, int y, int x, int ys, int xs);
- /* doubled line if possible */
- void draw_double_box (Dlg_head *h, int y, int x, int ys, int xs);
-
- /* Creates a dialog head */
- Dlg_head *create_dlg (int y1, int x1, int lines, int cols,
- int *col,
- int (*callback) (struct Dlg_head *, int, int),
- char *help_ctx, char *name, int flags);
-
- /* The flags: */
- #define DLG_TRYUP 2 /* Try to move two lines up the dialog */
- #define DLG_CENTER 1 /* Center the dialog */
- #define DLG_NONE 0 /* No options */
-
- int add_widget (Dlg_head *dest, void *Widget);
- int add_widgetl (Dlg_head *dest, void *Widget, WLay layout);
-
- /* Runs dialog d */
- void run_dlg (Dlg_head *d);
-
- void dlg_run_done (Dlg_head *h);
- void dlg_process_event (Dlg_head *h, int key, Gpm_Event *event);
- void init_dlg (Dlg_head *h);
-
- /* To activate/deactivate the idle message generation */
- void set_idle_proc (Dlg_head *d, int state);
-
- void dlg_redraw (Dlg_head *h);
- void dlg_refresh (void *parameter);
- void destroy_dlg (Dlg_head *h);
- void widget_set_size (Widget *widget, int x1, int y1, int x2, int y2);
- void dlg_broadcast_msg_to (Dlg_head *h, int message, int reverse, int flags);
- void dlg_broadcast_msg (Dlg_head *h, int message, int reverse);
- void dlg_mouse (Dlg_head *h, Gpm_Event *event);
- int default_dlg_callback (Dlg_head *h, int id, int msg);
-
- typedef void (*destroy_fn)(void *);
- typedef int (*callback_fn)(Dlg_head *, void *, int, int);
-
- void init_widget (Widget *w, int y, int x, int lines, int cols,
- callback_fn callback, destroy_fn destroy,
- mouse_h mouse_handler);
- int std_callback (Dlg_head *h, int Msg, int Par);
- int default_proc (Dlg_head *h, int Msg, int Par);
-
- /* Nay, it has to be elsewhere, this header if widely used
- #ifdef HAVE_X
- # ifndef move
- # define move(a,b)
- # endif
- #endif
- */
-
- #define real_widget_move(w, _y, _x) move((w)->y + _y, (w)->x + _x)
- #define dlg_move(h, _y, _x) move(((Dlg_head *) h)->y + _y, \
- ((Dlg_head *) h)->x + _x)
-
- #define widget_move(w,y,x) real_widget_move((Widget*)w,y,x)
-
-
- extern Dlg_head *current_dlg;
- extern Hook *idle_hook;
-
- int send_message (Dlg_head *h, Widget *w, int msg, int par);
- int send_message_to (Dlg_head *h, Widget *w, int msg, int par);
- void dlg_replace_widget (Dlg_head *h, Widget *old, Widget *new);
- void widget_redraw (Dlg_head *h, Widget_Item *w);
- int dlg_overlap (Widget *a, Widget *b);
- void widget_erase (Widget *);
- void dlg_erase (Dlg_head *h);
-
- /* Widget selection */
- int dlg_select_widget (struct Dlg_head *h, void *widget);
- void dlg_one_up (Dlg_head *h);
- void dlg_one_down (Dlg_head *h);
- int dlg_focus (Dlg_head *h);
- int dlg_unfocus (Dlg_head *h);
- int dlg_select_nth_widget (Dlg_head *h, int n);
- int dlg_item_number (Dlg_head *h);
- Widget *find_widget_type (Dlg_head *h, callback_fn signature);
-
- /* Sets/clear the specified flag in the options field */
- #define widget_option(w,f,i) \
- w.options = ((i) ? (w.options | (f)) : (w.options & (~(f))))
-
- #define widget_want_cursor(w,i) widget_option(w, W_WANT_CURSOR, i)
- #define widget_want_hotkey(w,i) widget_option(w, W_WANT_HOTKEY, i)
- #define widget_want_postkey(w,i) widget_option(w, W_WANT_POSTKEY, i)
-
- typedef void (*movefn)(void *, int);
-
- /* Layout definitions */
-
- void xv_Layout (void *first_widget, ...);
- void tk_layout (void *first_widget, ...);
- void tk_new_frame (Dlg_head *, char *);
- void tk_frame (Dlg_head *, char *);
- void tk_end_frame ();
- void x_set_dialog_title (Dlg_head *h, char *title);
-
- /* The inner workings of run_dlg, exported for the Tk and XView toolkits */
- void dlg_key_event (Dlg_head *h, int d_key);
- void update_cursor (Dlg_head *h);
-
- #endif /* MC_DLG_H */
-