/* Widgets for the Midnight Commander Copyright (C) 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 Free Software Foundation, Inc. Authors: 1994, 1995 Radek Doulik 1994, 1995 Miguel de Icaza 1995 Jakub Jelinek 1996 Andrej Borsenkow 1997 Norbert Warmuth 2009, 2010 Andrew Borodin This program 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 2 of the License, or (at your option) any later version. This program 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /** \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_msg_t msg, int parm) { WButton *b = (WButton *) w; int stop = 0; int off = 0; Dlg_head *h = b->widget.owner; switch (msg) { case WIDGET_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 == &b->widget) { button_callback (w, WIDGET_KEY, ' '); return MSG_HANDLED; } if (parm == '\n' && b->flags == DEFPUSH_BUTTON) { button_callback (w, WIDGET_KEY, ' '); return MSG_HANDLED; } if (b->text.hotkey != NULL && g_ascii_tolower ((gchar) b->text.hotkey[0]) == parm) { button_callback (w, WIDGET_KEY, ' '); return MSG_HANDLED; } return MSG_NOT_HANDLED; case WIDGET_KEY: if (parm != ' ' && parm != '\n') return MSG_NOT_HANDLED; if (b->callback != NULL) stop = b->callback (b, b->action); if (b->callback == NULL || stop != 0) { h->ret_value = b->action; dlg_stop (h); } return MSG_HANDLED; case WIDGET_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 (&b->widget, 0, b->hotpos + off); return MSG_HANDLED; case WIDGET_UNFOCUS: case WIDGET_FOCUS: case WIDGET_DRAW: if (msg == WIDGET_UNFOCUS) b->selected = FALSE; else if (msg == WIDGET_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 WIDGET_DESTROY: release_hotkey (b->text); return MSG_HANDLED; default: return default_proc (msg, parm); } } /* --------------------------------------------------------------------------------------------- */ static int button_event (Gpm_Event * event, void *data) { WButton *b = data; if ((event->type & (GPM_DOWN | GPM_UP)) != 0) { Dlg_head *h = b->widget.owner; dlg_select_widget (b); if ((event->type & GPM_UP) != 0) { button_callback (&b->widget, WIDGET_KEY, ' '); h->callback (h, &b->widget, DLG_POST_KEY, ' ', NULL); return MOU_NORMAL; } } 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; b = g_new (WButton, 1); b->action = action; b->flags = flags; b->text = parse_hotkey (text); init_widget (&b->widget, y, x, 1, button_get_len (b), button_callback, button_event); b->selected = FALSE; b->callback = callback; widget_want_hotkey (b->widget, 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) { release_hotkey (b->text); b->text = parse_hotkey (text); b->widget.cols = button_get_len (b); dlg_redraw (b->widget.owner); } /* --------------------------------------------------------------------------------------------- */ 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; } /* --------------------------------------------------------------------------------------------- */