apps/gui/icon.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 Jonathan Gordon
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include "inttypes.h"
  25 #include "config.h"
  26 #include "icon.h"
  27 #include "screen_access.h"
  28 #include "icons.h"
  29 #include "settings.h"
  30 #include "bmp.h"
  31 #include "filetypes.h"
  32
  33 #include "bitmaps/default_icons.h"
  34 #if defined(HAVE_REMOTE_LCD) && (NB_SCREENS > 1)
  35 #include "bitmaps/remote_default_icons.h"
  36 #endif
  37
  38 /* These are just the file names, the full path is snprint'ed when used */
  39 #define DEFAULT_VIEWER_BMP          "viewers"
  40 #define DEFAULT_REMOTE_VIEWER_BMP   "remote_viewers"
  41
  42 /* These should probably be moved to config-<target>.h */
  43 #define MAX_ICON_HEIGHT 24
  44 #define MAX_ICON_WIDTH 24
  45
  46
  47 /* We dont actually do anything with these pointers,
  48    but they need to be grouped like this to save code
  49    so storing them as void* is ok. (stops compile warning) */
  50 static const void * inbuilt_icons[NB_SCREENS] = {
  51         (void*)default_icons
  52 #if defined(HAVE_REMOTE_LCD) && (NB_SCREENS > 1)
  53       , (void*)remote_default_icons
  54 #endif
  55 };
  56
  57 static const int default_width[NB_SCREENS] = {
  58       BMPWIDTH_default_icons
  59 #if defined(HAVE_REMOTE_LCD) && (NB_SCREENS > 1)
  60     , BMPWIDTH_remote_default_icons
  61 #endif
  62 };
  63
  64 /* height of whole file */
  65 static const int default_height[NB_SCREENS] = {
  66       BMPHEIGHT_default_icons
  67 #if defined(HAVE_REMOTE_LCD) && (NB_SCREENS > 1)
  68     , BMPHEIGHT_remote_default_icons
  69 #endif
  70 };
  71
  72 #define IMG_BUFSIZE (MAX_ICON_HEIGHT * MAX_ICON_WIDTH * \
  73                      Icon_Last_Themeable *LCD_DEPTH/8)
  74 static unsigned char icon_buffer[NB_SCREENS][IMG_BUFSIZE];
  75 static bool custom_icons_loaded[NB_SCREENS] = {false};
  76 static struct bitmap user_iconset[NB_SCREENS];
  77
  78 static unsigned char viewer_icon_buffer[NB_SCREENS][IMG_BUFSIZE];
  79 static bool viewer_icons_loaded[NB_SCREENS] = {false};
  80 static struct bitmap viewer_iconset[NB_SCREENS];
  81
  82
  83 #define ICON_HEIGHT(screen) (!custom_icons_loaded[screen]?       \
  84                              default_height[screen] :   \
  85                              user_iconset[screen].height) \
  86                             / Icon_Last_Themeable
  87
  88 #define ICON_WIDTH(screen)  (!custom_icons_loaded[screen]?       \
  89                              default_width[screen] :   \
  90                              user_iconset[screen].width)
  91
  92 /* x,y in letters, not pixles */
  93 void screen_put_icon(struct screen * display,
  94                        int x, int y, enum themable_icons icon)
  95 {
  96     screen_put_icon_with_offset(display, x, y, 0, 0, icon);
  97 }
  98
  99 void screen_put_icon_with_offset(struct screen * display,
 100                        int x, int y, int off_x, int off_y,
 101                        enum themable_icons icon)
 102 {
 103     int xpos, ypos;
 104     int width, height;
 105     int screen = display->screen_type;
 106     display->getstringsize((unsigned char *)"M", &width, &height);
 107     xpos = x*ICON_WIDTH(screen) + off_x;
 108     ypos = y*height + off_y;
 109
 110     if ( height > ICON_HEIGHT(screen) )/* center the cursor */
 111         ypos += (height - ICON_HEIGHT(screen)) / 2;
 112     screen_put_iconxy(display, xpos, ypos, icon);
 113 }
 114
 115 /* x,y in pixels */
 116 void screen_put_iconxy(struct screen * display,
 117                        int xpos, int ypos, enum themable_icons icon)
 118 {
 119     const void *data;
 120     int screen = display->screen_type;
 121     int width = ICON_WIDTH(screen);
 122     int height = ICON_HEIGHT(screen);
 123     screen_bitmap_part_func *draw_func = NULL;
 124
 125     if (icon == Icon_NOICON)
 126     {
 127         screen_clear_area(display, xpos, ypos, width, height);
 128         return;
 129     }
 130     else if (icon >= Icon_Last_Themeable)
 131     {
 132         icon -= Icon_Last_Themeable;
 133         if (!viewer_icons_loaded[screen] ||
 134            (global_status.viewer_icon_count*height
 135              > viewer_iconset[screen].height) ||
 136            (icon * height > viewer_iconset[screen].height))
 137         {
 138             screen_put_iconxy(display, xpos, ypos, Icon_Questionmark);
 139             return;
 140         }
 141         data = viewer_iconset[screen].data;
 142     }
 143     else if (custom_icons_loaded[screen])
 144     {
 145         data = user_iconset[screen].data;
 146     }
 147     else
 148     {
 149         data = inbuilt_icons[screen];
 150     }
 151     /* add some left padding to the icons if they are on the edge */
 152     if (xpos == 0)
 153         xpos++;
 154
 155 #if (LCD_DEPTH == 16) || defined(LCD_REMOTE_DEPTH) && (LCD_REMOTE_DEPTH == 16)
 156     if (display->depth == 16)
 157         draw_func = display->transparent_bitmap_part;
 158     else
 159 #endif
 160         draw_func = display->bitmap_part;
 161
 162     draw_func(data, 0, height * icon, width, xpos, ypos, width, height);
 163 }
 164
 165 void screen_put_cursorxy(struct screen * display, int x, int y, bool on)
 166 {
 167 #ifdef HAVE_LCD_BITMAP
 168     screen_put_icon(display, x, y, on?Icon_Cursor:0);
 169 #else
 170     screen_put_icon(display, x, y, on?CURSOR_CHAR:-1);
 171 #endif
 172
 173 }
 174 enum Iconset {
 175     Iconset_Mainscreen,
 176     Iconset_Mainscreen_viewers,
 177 #if defined(HAVE_REMOTE_LCD) && (NB_SCREENS > 1)
 178     Iconset_Remotescreen,
 179     Iconset_Remotescreen_viewers,
 180 #endif
 181 };
 182
 183 static void load_icons(const char* filename, enum Iconset iconset,
 184     bool allow_disable)
 185 {
 186     int size_read;
 187     bool *loaded_ok = NULL;
 188     struct bitmap *bmp = NULL;
 189     int bmpformat = (FORMAT_NATIVE|FORMAT_DITHER);
 190
 191     switch (iconset)
 192     {
 193         case Iconset_Mainscreen:
 194             loaded_ok = &custom_icons_loaded[SCREEN_MAIN];
 195             bmp = &user_iconset[SCREEN_MAIN];
 196             bmp->data = icon_buffer[SCREEN_MAIN];
 197             break;
 198         case Iconset_Mainscreen_viewers:
 199             loaded_ok = &viewer_icons_loaded[SCREEN_MAIN];
 200             bmp = &viewer_iconset[SCREEN_MAIN];
 201             bmp->data = viewer_icon_buffer[SCREEN_MAIN];
 202             break;
 203 #if defined(HAVE_REMOTE_LCD) && (NB_SCREENS > 1)
 204         case Iconset_Remotescreen:
 205             loaded_ok = &custom_icons_loaded[SCREEN_REMOTE];
 206             bmp = &user_iconset[SCREEN_REMOTE];
 207             bmp->data = icon_buffer[SCREEN_REMOTE];
 208             bmpformat |= FORMAT_REMOTE;
 209             break;
 210         case Iconset_Remotescreen_viewers:
 211             loaded_ok = &viewer_icons_loaded[SCREEN_REMOTE];
 212             bmp = &viewer_iconset[SCREEN_REMOTE];
 213             bmp->data = viewer_icon_buffer[SCREEN_REMOTE];
 214             bmpformat |= FORMAT_REMOTE;
 215             break;
 216 #endif
 217     }
 218
 219     *loaded_ok = false;
 220     if (!allow_disable || (filename[0] && filename[0] != '-'))
 221     {
 222         char path[MAX_PATH];
 223
 224         snprintf(path, sizeof(path), "%s/%s.bmp", ICON_DIR, filename);
 225         size_read = read_bmp_file(path, bmp, IMG_BUFSIZE, bmpformat);
 226         if (size_read > 0)
 227         {
 228             *loaded_ok = true;
 229         }
 230     }
 231 }
 232
 233
 234 void icons_init(void)
 235 {
 236     load_icons(global_settings.icon_file, Iconset_Mainscreen, true);
 237
 238     if (*global_settings.viewers_icon_file)
 239     {
 240         load_icons(global_settings.viewers_icon_file,
 241                    Iconset_Mainscreen_viewers, true);
 242         read_viewer_theme_file();
 243     }
 244     else
 245     {
 246         load_icons(DEFAULT_VIEWER_BMP, Iconset_Mainscreen_viewers, false);
 247     }
 248
 249 #if defined(HAVE_REMOTE_LCD) && (NB_SCREENS > 1)
 250     load_icons(global_settings.remote_icon_file,
 251                Iconset_Remotescreen, true);
 252
 253     if (*global_settings.remote_viewers_icon_file)
 254     {
 255         load_icons(global_settings.remote_viewers_icon_file,
 256                    Iconset_Remotescreen_viewers, true);
 257     }
 258     else
 259     {
 260         load_icons(DEFAULT_REMOTE_VIEWER_BMP,
 261                    Iconset_Remotescreen_viewers, false);
 262     }
 263 #endif
 264 }
 265
 266 int get_icon_width(enum screen_type screen_type)
 267 {
 268     return ICON_WIDTH(screen_type);
 269 }