LCD电子书项目（七）

来源：互联网发布：cae有限元分析软件编辑：程序博客网时间：2024/05/17 01:47

各个模块已经写好了，现在开始写main.c文件

<span style="font-size:18px;">#include <unistd.h>#include <stdlib.h>#include <stdio.h>#include <config.h>#include <draw.h>#include <encoding_manager.h>#include <fonts_manager.h>#include <disp_manager.h>#include <input_manager.h>#include <string.h>/* ./show_file [-s Size] [-f freetype_font_file] [-h HZK] <text_file> */int main(int argc, char **argv){int iError;unsigned int dwFontSize = 16;char acHzkFile[128];char acFreetypeFile[128];char acTextFile[128];char acDisplay[128];int bList = 0;T_InputEvent tInputEvent;acHzkFile[0]  = '\0';acFreetypeFile[0] = '\0';acTextFile[0] = '\0';strcpy(acDisplay, "fb");while ((iError = getopt(argc, argv, "ls:f:h:d:")) != -1){switch(iError){case 'l':{  bList = 1;  break;}case 's':{  dwFontSize = strtoul(optarg, NULL, 0);  break;}case 'f':{  strncpy(acFreetypeFile, optarg, 128);  acFreetypeFile[127] = '\0';  break;}case 'h':{strncpy(acHzkFile, optarg, 128);acHzkFile[127] = '\0';break;}case 'd':{strncpy(acDisplay, optarg, 128);acDisplay[127] = '\0';break;}default:{printf("Usage: %s [-s Size] [-d display] [-f font_file] [-h HZK] <text_file>\n", argv[0]);printf("Usage: %s -l\n", argv[0]);return -1;break;}}}if (!bList && (optind >= argc)){printf("Usage: %s [-s Size] [-d display] [-f font_file] [-h HZK] <text_file>\n", argv[0]);printf("Usage: %s -l\n", argv[0]);return -1;}iError = DisplayInit();if (iError){printf("DisplayInit error!\n");return -1;}iError = FontsInit();if (iError){printf("FontsInit error!\n");return -1;}iError = EncodingInit();if (iError){printf("EncodingInit error!\n");return -1;}iError = InputInit();if (iError){printf("InputInit error!\n");return -1;}if (bList){printf("supported display:\n");ShowDispOpr();printf("supported font:\n");ShowFontOpr();printf("supported encoding:\n");ShowEncodingOpr();printf("supported input:\n");ShowInputOpr();return 0;}strncpy(acTextFile, argv[optind], 128);acTextFile[127] = '\0';iError = OpenTextFile(acTextFile);if (iError){printf("OpenTextFile error!\n");return -1;}iError = SetTextDetail(acHzkFile, acFreetypeFile, dwFontSize);if (iError){printf("SetTextDetail error!\n");return -1;}DBG_PRINTF("%s %s %d\n", __FILE__, __FUNCTION__, __LINE__);iError = SelectAndInitDisplay(acDisplay);if (iError){printf("SelectAndInitDisplay error!\n");return -1;}iError = AllInputDevicesInit();if (iError){DBG_PRINTF("Error AllInputDevicesInit\n");return -1;}DBG_PRINTF("%s %s %d\n", __FILE__, __FUNCTION__, __LINE__);iError = ShowNextPage();DBG_PRINTF("%s %s %d\n", __FILE__, __FUNCTION__, __LINE__);if (iError){printf("Error to show first page\n");return -1;}printf("Enter 'n' to show next page, 'u' to show previous page, 'q' to exit: ");while (1){if (0 == GetInputEvent(&tInputEvent)){if (tInputEvent.iVal == INPUT_VALUE_DOWN){ShowNextPage();}else if (tInputEvent.iVal == INPUT_VALUE_UP){ShowPrePage();}else if (tInputEvent.iVal == INPUT_VALUE_EXIT){return 0;}}}return 0;}</span>

现在讲解具体用法，首先应该安装freetypes库文件：参考这里！

还需要一些字体文件，这里看个人喜欢什么样的字体，这里我上传了一个simsun.ttc字体文件，下载：点击这里！最后准备一篇txt文件的小说，当这些都准备好了就可以测试了。

./show_file -s 16 -f simsun.ttc ./qinshimingyue.txt */

LCD就显示了小说文件，触摸屏向左滑动就是上一页，向右滑动就是下一页，串口终端输入n就是下一页，输入p就是上一页。

测试完毕，可以在文章中添加一个标志位，读到哪里就记下当前位置，下次接着从这里读取。

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