/* Widgets for the Midnight Commander Copyright (C) 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011 The Free Software Foundation, Inc. Authors: Radek Doulik, 1994, 1995 Miguel de Icaza, 1994, 1995 Jakub Jelinek, 1995 Andrej Borsenkow, 1996 Norbert Warmuth, 1997 Andrew Borodin , 2009, 2010 This file is part of the Midnight Commander. The Midnight Commander is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. The Midnight Commander is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ /** \file button.c * \brief Source: WButton widget */ #include #include #include "lib/global.h" #include "lib/tty/tty.h" #include "lib/tty/mouse.h" #include "lib/strutil.h" #include "lib/widget.h" /*** global variables ****************************************************************************/ /*** file scope macro definitions ****************************************************************/ /*** file scope type declarations ****************************************************************/ /*** file scope variables ************************************************************************/ /*** file scope functions ************************************************************************/ static cb_ret_t button_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data) { WButton *b = BUTTON (w); WDialog *h = w->owner; int off = 0; switch (msg) { case MSG_HOTKEY: /* * Don't let the default button steal Enter from the current * button. This is a workaround for the flawed event model * when hotkeys are sent to all widgets before the key is * handled by the current widget. */ if (parm == '\n' && WIDGET (h->current->data) == WIDGET (b)) { send_message (w, sender, MSG_KEY, ' ', data); return MSG_HANDLED; } if (parm == '\n' && b->flags == DEFPUSH_BUTTON) { send_message (w, sender, MSG_KEY, ' ', data); return MSG_HANDLED; } if (b->text.hotkey != NULL && g_ascii_tolower ((gchar) b->text.hotkey[0]) == parm) { send_message (w, sender, MSG_KEY, ' ', data); return MSG_HANDLED; } return MSG_NOT_HANDLED; case MSG_KEY: if (parm != ' ' && parm != '\n') return MSG_NOT_HANDLED; h->ret_value = b->action; if (b->callback == NULL || b->callback (b, b->action) != 0) dlg_stop (h); return MSG_HANDLED; case MSG_CURSOR: switch (b->flags) { case DEFPUSH_BUTTON: off = 3; break; case NORMAL_BUTTON: off = 2; break; case NARROW_BUTTON: off = 1; break; case HIDDEN_BUTTON: default: off = 0; break; } widget_move (w, 0, b->hotpos + off); return MSG_HANDLED; case MSG_UNFOCUS: case MSG_FOCUS: case MSG_DRAW: if (msg == MSG_UNFOCUS) b->selected = FALSE; else if (msg == MSG_FOCUS) b->selected = TRUE; widget_selectcolor (w, b->selected, FALSE); widget_move (w, 0, 0); switch (b->flags) { case DEFPUSH_BUTTON: tty_print_string ("[< "); break; case NORMAL_BUTTON: tty_print_string ("[ "); break; case NARROW_BUTTON: tty_print_string ("["); break; case HIDDEN_BUTTON: default: return MSG_HANDLED; } hotkey_draw (w, b->text, b->selected); switch (b->flags) { case DEFPUSH_BUTTON: tty_print_string (" >]"); break; case NORMAL_BUTTON: tty_print_string (" ]"); break; case NARROW_BUTTON: tty_print_string ("]"); break; default: break; } return MSG_HANDLED; case MSG_DESTROY: release_hotkey (b->text); return MSG_HANDLED; default: return widget_default_callback (w, sender, msg, parm, data); } } /* --------------------------------------------------------------------------------------------- */ static int button_event (Gpm_Event * event, void *data) { Widget *w = WIDGET (data); if (!mouse_global_in_widget (event, w)) return MOU_UNHANDLED; if ((event->type & (GPM_DOWN | GPM_UP)) != 0) { dlg_select_widget (w); if ((event->type & GPM_UP) != 0) { send_message (w, NULL, MSG_KEY, ' ', NULL); send_message (w->owner, w, MSG_POST_KEY, ' ', NULL); } } return MOU_NORMAL; } /* --------------------------------------------------------------------------------------------- */ /*** public functions ****************************************************************************/ /* --------------------------------------------------------------------------------------------- */ WButton * button_new (int y, int x, int action, button_flags_t flags, const char *text, bcback_fn callback) { WButton *b; Widget *w; b = g_new (WButton, 1); w = WIDGET (b); b->action = action; b->flags = flags; b->text = parse_hotkey (text); init_widget (w, y, x, 1, button_get_len (b), button_callback, button_event); b->selected = FALSE; b->callback = callback; widget_want_hotkey (w, TRUE); b->hotpos = (b->text.hotkey != NULL) ? str_term_width1 (b->text.start) : -1; return b; } /* --------------------------------------------------------------------------------------------- */ const char * button_get_text (const WButton * b) { if (b->text.hotkey != NULL) return g_strconcat (b->text.start, "&", b->text.hotkey, b->text.end, (char *) NULL); return g_strdup (b->text.start); } /* --------------------------------------------------------------------------------------------- */ void button_set_text (WButton * b, const char *text) { Widget *w = WIDGET (b); release_hotkey (b->text); b->text = parse_hotkey (text); w->cols = button_get_len (b); widget_redraw (w); } /* --------------------------------------------------------------------------------------------- */ int button_get_len (const WButton * b) { int ret = hotkey_width (b->text); switch (b->flags) { case DEFPUSH_BUTTON: ret += 6; break; case NORMAL_BUTTON: ret += 4; break; case NARROW_BUTTON: ret += 2; break; case HIDDEN_BUTTON: default: return 0; } return ret; } /* --------------------------------------------------------------------------------------------- */