C ordening

C/C(extra) ExtraAssignments/Skater/product/terminal_io.c

@@ -0,0 +1,92 @@
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "terminal_io.h"
+
+
+#define MAX_STRLEN 80
+
+static const char* MenuStrings[] =
+{
+    "Show Iceskaters",
+    "Add Iceskater",
+    "Remove Iceskater",
+    "Add time",
+    "Show classification",
+    "Show final classification",
+    "Load ...",
+    "Save ...",
+    "Quit"
+};
+static const size_t NrMenuStrings =
+            sizeof(MenuStrings) / sizeof(MenuStrings[0]);
+
+void clearScreen()
+{
+    printf("\033[2J\033[1;1H");
+}
+
+int getInt(const char* message)
+{
+    char line[MAX_STRLEN];
+    char* result = NULL;
+    int value = -1;
+
+    printf("%s", message);
+    result = fgets(line, sizeof(line), stdin);
+    if (result != NULL)
+    {
+        sscanf(result, "%d", &value);
+    }
+
+    return value;
+}
+
+int getLimitedInt(const char* message, const char* items[], int nrItems)
+{
+    int choice = -1;
+    do
+    {
+        if (items != NULL)
+        {
+            for (int i = 0; i < nrItems; i++)
+            {
+                printf("  [%d] %s\n", i, items[i]);
+            }
+        }
+        choice = getInt(message);
+    } while (choice < 0 || choice >= nrItems);
+
+    return choice;
+}
+
+void getStr(const char* message, char* str, int maxLength)
+{
+    char line[maxLength];
+    char* result = NULL;
+
+    printf("%s", message);
+    result = fgets(line, sizeof(line), stdin);
+    if (result != NULL)
+    {
+        if (result[strlen(result) - 1] == '\n')
+        {
+            result[strlen(result) - 1] = '\0';
+        }
+        strncpy(str, result, maxLength);
+        str[maxLength - 1] = '\0';
+    }
+}
+
+MenuOptions getMenuChoice()
+{
+    printf("\n\nMENU\n====\n");
+    return (MenuOptions)getLimitedInt("choice: ", MenuStrings, NrMenuStrings);
+}
+
+void printProgramHeader()
+{
+    printf("PRC2 opdracht 'Schaatsen'\n"
+           "-------------------------");
+}