From 60699af63f92f43cc4b4b9e3050fcdd2a8468281 Mon Sep 17 00:00:00 2001
From: Andrew Opalach <andrew@akon.city>
Date: Wed, 10 Apr 2019 15:14:00 -0400
Subject: add opengl fronend, remove sdl frontend, refactor build system

---
 .../CEdev/examples/fileio_read_write/src/main.c    | 88 ++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 frontends/calculator/CEdev/examples/fileio_read_write/src/main.c

(limited to 'frontends/calculator/CEdev/examples/fileio_read_write/src')

diff --git a/frontends/calculator/CEdev/examples/fileio_read_write/src/main.c b/frontends/calculator/CEdev/examples/fileio_read_write/src/main.c
new file mode 100644
index 0000000..a776037
--- /dev/null
+++ b/frontends/calculator/CEdev/examples/fileio_read_write/src/main.c
@@ -0,0 +1,88 @@
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <tice.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <fileioc.h>
+
+/* Declare some variables */
+const char *appvarName = "AppVar";
+
+typedef struct {
+    char name[15];
+    uint8_t var1;
+    uint8_t var2;
+} data_t;
+
+data_t data;
+
+#define VAR1_VALUE 10
+#define VAR2_VALUE 20
+
+/* Function prototypes */
+void printText(int8_t xpos, int8_t ypos, const char *text);
+
+/* Main Function */
+void main(void) {
+    char nameBuffer[10];
+    ti_var_t myAppVar;
+    int x;
+
+    /* Clear the homescreen */
+    os_ClrHome();
+
+    /* Declare some variable values */
+    strcpy(data.name, "My Data");
+    data.var1 = VAR1_VALUE;
+    data.var2 = VAR2_VALUE;
+
+    /* Close any files that may be open already */
+    ti_CloseAll();
+
+    /* Open a new variable; deleting it if it already exists */
+    myAppVar = ti_Open(appvarName, "w");
+
+    /* Make sure we opened okay */
+    if (!myAppVar)                                          goto err;
+
+    /* Write the structure to the appvar */
+    if (ti_Write(&data, sizeof(data_t), 1, myAppVar) != 1)  goto err;
+
+    /* Go back to the start of the file */
+    if (ti_Rewind(myAppVar) == EOF)                         goto err;
+
+    /* Let's read it just to make sure we wrote it correctly */
+    if (ti_Read(&data, sizeof(data_t), 1, myAppVar) != 1)   goto err;
+
+    /* Make sure we read these variables correctly too */
+    if (data.var1 != VAR1_VALUE && data.var2 != VAR2_VALUE) goto err;
+
+    /* Ensure the name of the AppVar is correct */
+    ti_GetName(nameBuffer, myAppVar);
+
+    printText(0, 0, "Appvar: ");
+    printText(8, 0, nameBuffer);
+    printText(0, 1, "Read was successful");
+    goto noerr;
+
+err:
+    printText(0, 0, "An error occured");
+noerr:
+
+    /* Pause */
+    while (!os_GetCSC());
+
+    /* Close all open files */
+    ti_CloseAll();
+}
+
+/* Draw text on the homescreen at the given X/Y location */
+void printText(int8_t xpos, int8_t ypos, const char *text) {
+    os_SetCursorPos(ypos, xpos);
+    os_PutStrFull(text);
+}
+
-- 
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