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318 lines
11 KiB
C
318 lines
11 KiB
C
#ifndef MC_DLG_H
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#define MC_DLG_H
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#include "mouse.h"
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#include "util.h"
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/* Color constants */
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#define FOCUSC h->color[1]
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#define NORMALC h->color[0]
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#define HOT_NORMALC h->color[2]
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#define HOT_FOCUSC h->color[3]
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/* Possible directions */
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#define DIR_FORWARD 1
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#define DIR_BACKWARD 0
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/* Common return values */
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#define B_EXIT 0
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#define B_CANCEL 1
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#define B_ENTER 2
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#define B_HELP 3
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#define B_USER 100
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/* Widget messages */
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enum {
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WIDGET_INIT, /* Initialize widget */
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WIDGET_FOCUS, /* Draw widget in focused state */
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WIDGET_UNFOCUS, /* Draw widget in unfocused state */
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WIDGET_DRAW, /* Sent to widget to draw themselves */
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WIDGET_KEY, /* Sent to widgets on key press */
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WIDGET_HOTKEY, /* Sent to widget to catch preprocess key */
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WIDGET_DESTROY, /* Sent to widget at destruction time */
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WIDGET_CURSOR, /* Sent to widget to position the cursor */
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WIDGET_IDLE, /* Send to widgets with options & W_WANT_IDLE*/
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WIDGET_USER = 0x100000
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} /* Widget_Messages */;
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enum {
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MSG_NOT_HANDLED,
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MSG_HANDLED
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} /* WRET */;
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/* Widgets are expected to answer to the following messages:
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WIDGET_FOCUS: 1 if the accept the focus, 0 if they do not.
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WIDGET_UNFOCUS: 1 if they accept to release the focus, 0 if they don't.
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WIDGET_KEY: 1 if they actually used the key, 0 if not.
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WIDGET_HOTKEY: 1 if they actually used the key, 0 if not.
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*/
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/* Dialog messages */
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enum {
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DLG_KEY, /* Sent on keypress before sending to widget */
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DLG_INIT, /* Sent on init */
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DLG_END, /* Sent on shutdown */
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DLG_ACTION,
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DLG_DRAW, /* Sent for updating dialog managed area */
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DLG_FOCUS, /* Sent on give focus to a widget */
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DLG_UNFOCUS, /* Sent on remove focus from widget */
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DLG_ONE_UP, /* Sent on selecting next */
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DLG_ONE_DOWN, /* Sent on selecting prev */
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DLG_POST_KEY, /* Sent after key has been sent */
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DLG_IDLE, /* Sent if idle is active */
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DLG_UNHANDLED_KEY, /* Send if no widget wanted the key */
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DLG_HOTKEY_HANDLED, /* Send if a child got the hotkey */
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DLG_PRE_EVENT /* Send before calling get_event */
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} /* Dialog_Messages */;
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typedef unsigned long widget_data;
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typedef struct Dlg_head {
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int *color; /* color set */
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int count; /* number of widgets */
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int ret_value;
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/* mouse status */
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int mouse_status; /* For the autorepeat status of the mouse */
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void *previous_dialog; /* Pointer to the previously running Dlg_head */
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int refresh_pushed; /* Did the dialog actually run? */
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/* position */
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int x, y; /* Position relative to screen origin */
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/* Flags */
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int running;
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int direction;
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int send_idle_msg;
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char *name; /* Dialog name Tk code */
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char *help_ctx;
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/* Internal variables */
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struct Widget_Item *current, *first, *last;
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int (*callback) (struct Dlg_head *, int, int);
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struct Widget_Item *initfocus;
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/* Hacks */
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char *title;
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int cols;
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int lines;
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void *data;
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int has_menubar; /* GrossHack: Send events on row 1 to a menubar? */
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int raw; /* Should the tab key be sent to the dialog? */
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widget_data wdata;
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int grided; /* Does it use the automatic layout? */
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#ifdef HAVE_GNOME
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int idle_fn_tag; /* Tag for the idle routine, -1 if none */
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#endif
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} Dlg_head;
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/* XView widget layout */
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typedef enum {
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XV_WLAY_DONTCARE, /* Place the widget wherever it is reasonable */
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XV_WLAY_RIGHTOF, /* Place the widget to the right of the last widget
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* created - note: add_widget creates widgets from
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* the last to the first one.
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*/
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XV_WLAY_BELOWOF, /* Place it in a column like style */
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XV_WLAY_BELOWCLOSE,/* The same, but without any gap between them */
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XV_WLAY_NEXTROW, /* Place it on the left margin with Y bellow all the
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* previous widgets
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*/
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XV_WLAY_CENTERROW,/* The same as previous, but when the dialog is
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* ready to show, tries to center that row of widgets
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*/
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XV_WLAY_NEXTCOLUMN, /* Place it on the top margin with X behind all the
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* previous widgets
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*/
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XV_WLAY_RIGHTDOWN, /* Place the widget to the right of the last one with
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* y set so that both y + h and yold + hold are equal.
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This is usefull if the previous widget was a radio,
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which has multiple lines */
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XV_WLAY_EXTENDWIDTH /* Like nextrow, but later on tries to extend the widget
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* to fit in the frame (only for PANEL_LIST) */
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} WLay;
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/* Every Widget must have this as it's first element */
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typedef struct Widget {
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int x, y;
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int cols, lines;
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int color; /* If the widget uses it, the color */
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int options;
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int focused; /* Tells if the widget is focused */
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int (*callback)(Dlg_head *, void *, int, int); /* The callback function */
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void (*destroy)(void *);
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mouse_h mouse;
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struct Dlg_head *parent;
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widget_data wdata;
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widget_data wcontainer; /* For children of midnight_dlg, identifies
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* the frame in which they should reside
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*/
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char *frame; /* Tk version: frame containing it */
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char *tkname; /* Tk version: widget name */
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enum {
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AREA_TOP,
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AREA_LEFT,
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AREA_RIGHT,
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AREA_BOTTOM
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} area; /* Used by X platforms, should stay here always because the size
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of this structure has to be same everywhere :) */
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WLay layout;
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} Widget;
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/* The options for the widgets */
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#define W_WANT_POST_KEY 1
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#define W_WANT_HOTKEY 2
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#define W_WANT_CURSOR 4
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#define W_WANT_IDLE 8
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#define W_IS_INPUT 16
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#define W_PANEL_HIDDEN 32
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typedef struct Widget_Item {
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int dlg_id;
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struct Widget_Item *next; /* next in circle buffer */
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struct Widget_Item *prev; /* previous in circle buffer */
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Widget *widget; /* point to the component */
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} Widget_Item;
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/* draw box in window */
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void draw_box (Dlg_head *h, int y, int x, int ys, int xs);
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/* doubled line if possible */
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void draw_double_box (Dlg_head *h, int y, int x, int ys, int xs);
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/* Creates a dialog head */
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Dlg_head *create_dlg (int y1, int x1, int lines, int cols,
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int *col,
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int (*callback) (struct Dlg_head *, int, int),
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char *help_ctx, char *name, int flags);
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/* The flags: */
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#define DLG_NO_TOPLEVEL 32 /* GNOME only: Do not create a toplevel window, user provides it */
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#define DLG_GNOME_APP 16 /* GNOME only: use a gnome-app for the toplevel window */
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#define DLG_NO_TED 8 /* GNOME only: do not manage layout with a GNOME GtkTed widget */
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#define DLG_GRID 4 /* Widgets should be created under .widgets */
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#define DLG_TRYUP 2 /* Try to move two lines up the dialog */
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#define DLG_CENTER 1 /* Center the dialog */
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#define DLG_NONE 0 /* No options */
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int add_widget (Dlg_head *dest, void *Widget);
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int add_widgetl (Dlg_head *dest, void *Widget, WLay layout);
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int remove_widget (Dlg_head *dest, void *Widget);
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int destroy_widget (Widget *w);
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/* Runs dialog d */
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void run_dlg (Dlg_head *d);
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void dlg_run_done (Dlg_head *h);
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void dlg_process_event (Dlg_head *h, int key, Gpm_Event *event);
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void init_dlg (Dlg_head *h);
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/* To activate/deactivate the idle message generation */
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void set_idle_proc (Dlg_head *d, int state);
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void dlg_redraw (Dlg_head *h);
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void dlg_refresh (void *parameter);
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void destroy_dlg (Dlg_head *h);
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void widget_set_size (Widget *widget, int x1, int y1, int x2, int y2);
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void dlg_broadcast_msg_to (Dlg_head *h, int message, int reverse, int flags);
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void dlg_broadcast_msg (Dlg_head *h, int message, int reverse);
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void dlg_mouse (Dlg_head *h, Gpm_Event *event);
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typedef void (*destroy_fn)(void *);
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typedef int (*callback_fn)(Dlg_head *, void *, int, int);
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void init_widget (Widget *w, int y, int x, int lines, int cols,
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callback_fn callback, destroy_fn destroy,
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mouse_h mouse_handler, char *tkname);
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/* Various default service provision */
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int default_dlg_callback (Dlg_head *h, int id, int msg);
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int std_callback (Dlg_head *h, int Msg, int Par);
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int default_proc (Dlg_head *h, int Msg, int Par);
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#define real_widget_move(w, _y, _x) move((w)->y + _y, (w)->x + _x)
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#define dlg_move(h, _y, _x) move(((Dlg_head *) h)->y + _y, \
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((Dlg_head *) h)->x + _x)
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#define widget_move(w,y,x) real_widget_move((Widget*)w,y,x)
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extern Dlg_head *current_dlg;
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extern Hook *idle_hook;
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int send_message (Dlg_head *h, Widget *w, int msg, int par);
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int send_message_to (Dlg_head *h, Widget *w, int msg, int par);
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void dlg_replace_widget (Dlg_head *h, Widget *old, Widget *new);
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void widget_redraw (Dlg_head *h, Widget_Item *w);
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int dlg_overlap (Widget *a, Widget *b);
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void widget_erase (Widget *);
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void dlg_erase (Dlg_head *h);
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void dlg_stop (Dlg_head *h);
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/* Widget selection */
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int dlg_select_widget (Dlg_head *h, void *widget);
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void dlg_one_up (Dlg_head *h);
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void dlg_one_down (Dlg_head *h);
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int dlg_focus (Dlg_head *h);
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int dlg_unfocus (Dlg_head *h);
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int dlg_select_nth_widget (Dlg_head *h, int n);
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int dlg_item_number (Dlg_head *h);
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Widget *find_widget_type (Dlg_head *h, callback_fn signature);
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/* Sets/clear the specified flag in the options field */
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#define widget_option(w,f,i) \
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w.options = ((i) ? (w.options | (f)) : (w.options & (~(f))))
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#define widget_want_cursor(w,i) widget_option(w, W_WANT_CURSOR, i)
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#define widget_want_hotkey(w,i) widget_option(w, W_WANT_HOTKEY, i)
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#define widget_want_postkey(w,i) widget_option(w, W_WANT_POSTKEY, i)
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typedef void (*movefn)(void *, int);
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/* Layout definitions */
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void xv_Layout (void *first_widget, ...);
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void tk_layout (void *first_widget, ...);
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void tk_new_frame (Dlg_head *, char *);
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void tk_frame (Dlg_head *, char *);
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void tk_end_frame ();
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void x_set_dialog_title (Dlg_head *h, char *title);
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/* The inner workings of run_dlg, exported for the Tk and XView toolkits */
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void dlg_key_event (Dlg_head *h, int d_key);
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void update_cursor (Dlg_head *h);
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#ifdef HAVE_X
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extern Dlg_head *midnight_dlg;
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void x_focus_widget (Widget_Item *p);
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void x_unfocus_widget (Widget_Item *p);
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void x_init_dlg (Dlg_head *h);
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void x_destroy_dlg (Dlg_head *h);
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void x_destroy_dlg_start (Dlg_head *h);
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void x_set_idle (Dlg_head *h, int enable_idle);
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void x_dialog_stop (Dlg_head *h);
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#else
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# define x_focus_widget(x) {}
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# define x_unfocus_widget(x) {}
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# define x_init_dlg(x) {}
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# define x_destroy_dlg(x) {}
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# define x_destroy_dlg_start(x) {}
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#endif
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#endif /* MC_DLG_H */
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