/* 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 widget-common.c * \brief Source: shared stuff of widgets */ #include #include #include #include "lib/global.h" #include "lib/tty/tty.h" #include "lib/tty/color.h" #include "lib/skin.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 ************************************************************************/ /* --------------------------------------------------------------------------------------------- */ /*** public functions ****************************************************************************/ /* --------------------------------------------------------------------------------------------- */ struct hotkey_t parse_hotkey (const char *text) { hotkey_t result; const char *cp, *p; if (text == NULL) text = ""; /* search for '&', that is not on the of text */ cp = strchr (text, '&'); if (cp != NULL && cp[1] != '\0') { result.start = g_strndup (text, cp - text); /* skip '&' */ cp++; p = str_cget_next_char (cp); result.hotkey = g_strndup (cp, p - cp); cp = p; result.end = g_strdup (cp); } else { result.start = g_strdup (text); result.hotkey = NULL; result.end = NULL; } return result; } /* --------------------------------------------------------------------------------------------- */ void release_hotkey (const hotkey_t hotkey) { g_free (hotkey.start); g_free (hotkey.hotkey); g_free (hotkey.end); } /* --------------------------------------------------------------------------------------------- */ int hotkey_width (const hotkey_t hotkey) { int result; result = str_term_width1 (hotkey.start); result += (hotkey.hotkey != NULL) ? str_term_width1 (hotkey.hotkey) : 0; result += (hotkey.end != NULL) ? str_term_width1 (hotkey.end) : 0; return result; } /* --------------------------------------------------------------------------------------------- */ void hotkey_draw (Widget * w, const hotkey_t hotkey, gboolean focused) { widget_selectcolor (w, focused, FALSE); tty_print_string (hotkey.start); if (hotkey.hotkey != NULL) { widget_selectcolor (w, focused, TRUE); tty_print_string (hotkey.hotkey); widget_selectcolor (w, focused, FALSE); } if (hotkey.end != NULL) tty_print_string (hotkey.end); } /* --------------------------------------------------------------------------------------------- */ void init_widget (Widget * w, int y, int x, int lines, int cols, widget_cb_fn callback, mouse_h mouse_handler) { w->x = x; w->y = y; w->cols = cols; w->lines = lines; w->callback = callback; w->mouse = mouse_handler; w->set_options = widget_default_set_options_callback; w->owner = NULL; /* Almost all widgets want to put the cursor in a suitable place */ w->options = W_WANT_CURSOR; } /* --------------------------------------------------------------------------------------------- */ /* Default callback for widgets */ cb_ret_t widget_default_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data) { (void) w; (void) sender; (void) parm; (void) data; switch (msg) { case MSG_INIT: case MSG_FOCUS: case MSG_UNFOCUS: case MSG_DRAW: case MSG_DESTROY: case MSG_CURSOR: case MSG_IDLE: return MSG_HANDLED; default: return MSG_NOT_HANDLED; } } /* --------------------------------------------------------------------------------------------- */ /** * Callback for applying new options to widget. * * @param w widget * @param options options set * @param enable TRUE if specified options should be added, FALSE if options should be removed */ void widget_default_set_options_callback (Widget * w, widget_options_t options, gboolean enable) { if (enable) w->options |= options; else w->options &= ~options; if (w->owner != NULL && (options & W_DISABLED) != 0) send_message (w, NULL, MSG_DRAW, 0, NULL); } /* --------------------------------------------------------------------------------------------- */ /** * Apply new options to widget. * * @param w widget * @param options options set * @param enable TRUE if specified options should be added, FALSE if options should be removed */ void widget_set_options (Widget * w, widget_options_t options, gboolean enable) { w->set_options (w, options, enable); } /* --------------------------------------------------------------------------------------------- */ void widget_set_size (Widget * widget, int y, int x, int lines, int cols) { widget->x = x; widget->y = y; widget->cols = cols; widget->lines = lines; send_message (widget, NULL, MSG_RESIZE, 0, NULL); } /* --------------------------------------------------------------------------------------------- */ void widget_selectcolor (Widget * w, gboolean focused, gboolean hotkey) { WDialog *h = w->owner; int color; if ((w->options & W_DISABLED) != 0) color = DISABLED_COLOR; else if (hotkey) { if (focused) color = h->color[DLG_COLOR_HOT_FOCUS]; else color = h->color[DLG_COLOR_HOT_NORMAL]; } else { if (focused) color = h->color[DLG_COLOR_FOCUS]; else color = h->color[DLG_COLOR_NORMAL]; } tty_setcolor (color); } /* --------------------------------------------------------------------------------------------- */ void widget_erase (Widget * w) { if (w != NULL) tty_fill_region (w->y, w->x, w->lines, w->cols, ' '); } /* --------------------------------------------------------------------------------------------- */ void widget_redraw (Widget * w) { if (w != NULL) { WDialog *h = w->owner; if (h != NULL && h->state == DLG_ACTIVE) w->callback (w, NULL, MSG_DRAW, 0, NULL); } } /* --------------------------------------------------------------------------------------------- */ /* get mouse pointer location within widget */ Gpm_Event mouse_get_local (const Gpm_Event * global, const Widget * w) { Gpm_Event local; local.buttons = global->buttons; local.x = global->x - w->x; local.y = global->y - w->y; local.type = global->type; return local; } /* --------------------------------------------------------------------------------------------- */ gboolean mouse_global_in_widget (const Gpm_Event * event, const Widget * w) { return (event->x > w->x) && (event->y > w->y) && (event->x <= w->x + w->cols) && (event->y <= w->y + w->lines); } /* --------------------------------------------------------------------------------------------- */