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/*
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* GraphLCD tool showtext
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*
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* showtext.c - a tool to show a text on a LCD
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*
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* This file is released under the GNU General Public License. Refer
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* to the COPYING file distributed with this package.
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*
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* (c) 2004 Andreas Regel <andreas.regel AT powarman.de>
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <getopt.h>
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#include <unistd.h>
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#include <string>
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#include <glcdgraphics/bitmap.h>
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#include <glcdgraphics/font.h>
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#include <glcddrivers/config.h>
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#include <glcddrivers/driver.h>
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#include <glcddrivers/drivers.h>
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static const char *prgname = "showtext";
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static const char *version = "0.0.3";
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static const char * kDefaultConfigFile = "/etc/graphlcd.conf";
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static const int kFontFNT = 0;
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static const int kFontFT2 = 1;
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void usage()
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{
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fprintf(stdout, "\n");
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fprintf(stdout, "%s v%s\n", prgname, version);
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fprintf(stdout, "%s is a tool to show a text on a LCD.\n", prgname);
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fprintf(stdout, "\n");
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fprintf(stdout, " Usage: %s [-c CONFIGFILE] [-d DISPLAY] [-f FONT] [-x XPOS] [-y YPOS] [-uib] text [more text]\n\n", prgname);
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fprintf(stdout, " -c --config specifies the location of the config file\n");
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fprintf(stdout, " (default: /etc/graphlcd.conf)\n");
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fprintf(stdout, " -d --display specifies the output display (default is the first one)\n");
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fprintf(stdout, " -f --font specifies the font that is used for the text:\n");
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fprintf(stdout, " fnt:/path/to/font.fnt for GraphLCD font format\n");
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fprintf(stdout, " ft2:/path/to/font.ttf:size for FreeType2 supported fonts\n");
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fprintf(stdout, " -e --encoding specifies the encoding that is used for the text\n");
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fprintf(stdout, " (p.e. iso8859-1)\n");
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fprintf(stdout, " -x --xpos specifies the x-position where the text starts\n");
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fprintf(stdout, " -y --ypos specifies the y-position where the text starts\n");
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fprintf(stdout, " -u --upsidedown rotates the output by 180 degrees (default: no)\n");
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fprintf(stdout, " -i --invert inverts the output (default: no)\n");
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fprintf(stdout, " -b --brightness set brightness for display if driver support it [%%]\n");
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fprintf(stdout, " (default: config file value)\n");
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fprintf(stdout, "\n" );
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fprintf(stdout, " example: %s -c /etc/graphlcd.conf -f fnt:f17.fnt \"Line1\" \"Line2\"\n", prgname);
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fprintf(stdout, "\n" );
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}
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int main(int argc, char *argv[])
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{
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static struct option long_options[] =
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{
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{"config", required_argument, NULL, 'c'},
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{"display", required_argument, NULL, 'd'},
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{"font", required_argument, NULL, 'f'},
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{"encoding", required_argument, NULL, 'e'},
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{"upsidedown", no_argument, NULL, 'u'},
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{"invert", no_argument, NULL, 'i'},
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{"brightness", required_argument, NULL, 'b'},
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{"xpos", required_argument, NULL, 'x'},
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{"ypos", required_argument, NULL, 'y'},
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{NULL}
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};
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std::string configName = "";
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std::string displayName = "";
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std::string fontName;
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std::string fontFileName = "";
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std::string encoding = "";
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int fontType;
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int fontSize = 16;
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bool upsideDown = false;
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bool invert = false;
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int brightness = -1;
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int x = 0;
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int y = 0;
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unsigned int displayNumber = 0;
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int c, option_index = 0;
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while ((c = getopt_long(argc, argv, "c:d:f:e:uib:x:y:", long_options, &option_index)) != -1)
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{
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switch (c)
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{
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case 'c':
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configName = optarg;
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break;
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case 'd':
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displayName = optarg;
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break;
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case 'f':
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fontName = optarg;
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break;
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case 'e':
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encoding = optarg;
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break;
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case 'u':
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upsideDown = true;
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break;
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case 'i':
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invert = true;
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break;
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case 'b':
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brightness = atoi(optarg);
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if (brightness < 0) brightness = 0;
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if (brightness > 100) brightness = 100;
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break;
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case 'x':
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x = atoi(optarg);
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break;
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case 'y':
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y = atoi(optarg);
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break;
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default:
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usage();
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return 1;
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}
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}
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if (configName.length() == 0)
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{
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configName = kDefaultConfigFile;
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fprintf(stdout, "WARNING: No config file specified, using default (%s).\n", configName.c_str());
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}
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if (GLCD::Config.Load(configName) == false)
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{
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fprintf(stderr, "Error loading config file!\n");
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return 2;
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}
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if (GLCD::Config.driverConfigs.size() > 0)
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{
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if (displayName.length() > 0)
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{
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for (displayNumber = 0; displayNumber < GLCD::Config.driverConfigs.size(); displayNumber++)
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{
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if (GLCD::Config.driverConfigs[displayNumber].name == displayName)
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break;
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}
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if (displayNumber == GLCD::Config.driverConfigs.size())
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{
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fprintf(stderr, "ERROR: Specified display %s not found in config file!\n", displayName.c_str());
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return 3;
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}
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}
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else
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{
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fprintf(stdout, "WARNING: No display specified, using first one.\n");
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displayNumber = 0;
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}
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}
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else
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{
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fprintf(stderr, "ERROR: No displays specified in config file!\n");
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return 4;
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}
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if (encoding.length() == 0)
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{
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encoding = "iso8859-1";
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fprintf(stdout, "WARNING: No encoding specified, using default (%s).\n", encoding.c_str());
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}
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if (fontName.length() == 0)
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{
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fprintf(stderr, "Error: No font specified!\n");
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return 5;
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}
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if (fontName.find("fnt:") == 0)
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{
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fontType = kFontFNT;
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fontFileName = fontName.substr(4);
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}
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else if (fontName.find("ft2:") == 0)
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{
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fontType = kFontFT2;
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std::string::size_type pos = fontName.find(":", 4);
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if (pos == std::string::npos)
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{
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fontSize = 16;
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fprintf(stdout, "WARNING: No font size specified, using default (%d).\n", fontSize);
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fontFileName = fontName.substr(4);
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}
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else
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{
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std::string tmp = fontName.substr(pos + 1);
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fontSize = atoi(tmp.c_str());
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fontFileName = fontName.substr(4, pos - 4);
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}
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}
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else
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{
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fprintf(stderr, "Error: Unknown font type!\n");
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return 6;
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}
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if (optind == argc)
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{
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usage();
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fprintf(stderr, "ERROR: You have to specify a text\n");
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return 7;
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}
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GLCD::Config.driverConfigs[displayNumber].upsideDown ^= upsideDown;
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GLCD::Config.driverConfigs[displayNumber].invert ^= invert;
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if (brightness != -1)
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GLCD::Config.driverConfigs[displayNumber].brightness = brightness;
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GLCD::cFont font;
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if (fontType == kFontFNT)
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{
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if (font.LoadFNT(fontFileName) == false)
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{
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fprintf(stderr, "ERROR: Failed loading font file %s\n", fontFileName.c_str());
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return 8;
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}
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}
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else
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{
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if (font.LoadFT2(fontFileName, encoding, fontSize) == false)
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{
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fprintf(stderr, "ERROR: Failed loading font file %s\n", fontFileName.c_str());
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return 8;
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}
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}
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GLCD::cDriver * lcd = GLCD::CreateDriver(GLCD::Config.driverConfigs[displayNumber].id, &GLCD::Config.driverConfigs[displayNumber]);
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if (!lcd)
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{
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fprintf(stderr, "ERROR: Failed creating display object %s\n", displayName.c_str());
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return 9;
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}
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if (lcd->Init() != 0)
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{
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fprintf(stderr, "ERROR: Failed initializing display %s\n", displayName.c_str());
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delete lcd;
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return 10;
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}
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GLCD::cBitmap * bitmap = new GLCD::cBitmap(lcd->Width(), lcd->Height());
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int optText;
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std::string text;
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bitmap->Clear();
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optText = optind;
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while (optText < argc)
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{
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text = argv[optText];
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optText++;
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bitmap->DrawText(x, y, bitmap->Width() - 1, text, &font);
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y += font.LineHeight();
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}
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lcd->SetScreen(bitmap->Data(), bitmap->Width(), bitmap->Height(), bitmap->LineSize());
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lcd->Refresh(true);
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lcd->DeInit();
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delete lcd;
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return 0;
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}
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