src/screen_text.h

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2017 The Music Player Daemon Project
   3  * Project homepage: http://musicpd.org
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #ifndef SCREEN_TEXT_H
  21 #define SCREEN_TEXT_H
  22
  23 #include "list_window.h"
  24
  25 #include <glib.h>
  26
  27 struct mpdclient;
  28
  29 struct screen_text {
  30         GPtrArray *lines;
  31
  32         struct list_window *lw;
  33 };
  34
  35 static inline void
  36 screen_text_init(struct screen_text *text, WINDOW *w, unsigned cols, unsigned rows)
  37 {
  38         text->lines = g_ptr_array_new();
  39
  40         text->lw = list_window_init(w, cols, rows);
  41         text->lw->hide_cursor = true;
  42 }
  43
  44 void
  45 screen_text_clear(struct screen_text *text);
  46
  47 static inline void
  48 screen_text_deinit(struct screen_text *text)
  49 {
  50         screen_text_clear(text);
  51         g_ptr_array_free(text->lines, TRUE);
  52
  53         list_window_free(text->lw);
  54 }
  55
  56 static inline void
  57 screen_text_resize(struct screen_text *text, unsigned cols, unsigned rows)
  58 {
  59         list_window_resize(text->lw, cols, rows);
  60 }
  61
  62 static inline bool
  63 screen_text_is_empty(const struct screen_text *text)
  64 {
  65         return text->lines->len == 0;
  66 }
  67
  68 void
  69 screen_text_append(struct screen_text *text, const char *str);
  70
  71 static inline void
  72 screen_text_set(struct screen_text *text, const char *str)
  73 {
  74         screen_text_clear(text);
  75         screen_text_append(text, str);
  76 }
  77
  78 const char *
  79 screen_text_list_callback(unsigned idx, void *data);
  80
  81 static inline void
  82 screen_text_paint(struct screen_text *text)
  83 {
  84         list_window_paint(text->lw, screen_text_list_callback, text);
  85 }
  86
  87 /**
  88  * Repaint and update the screen.
  89  */
  90 static inline void
  91 screen_text_repaint(struct screen_text *text)
  92 {
  93         screen_text_paint(text);
  94         wrefresh(text->lw->w);
  95 }
  96
  97 bool
  98 screen_text_cmd(struct screen_text *text, struct mpdclient *c, command_t cmd);
  99
 100 #endif