From 8b7d46114b90b4ceba66d964692bf14a271d3aee Mon Sep 17 00:00:00 2001
From: Imran Tierce <ti170577@etu.univ-lehavre.fr>
Date: Fri, 3 Jan 2020 22:14:31 +0100
Subject: [PATCH] premier commit

---
 .gitignore          |   7 +++
 include/userinput.h |   6 +++
 src/userinput.c     | 126 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 139 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 include/userinput.h
 create mode 100644 src/userinput.c

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b07d157
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+assets-cg
+assets-fx
+build-fx
+Makefile
+project.cfg
+uitest.g1a
+src/main.c
diff --git a/include/userinput.h b/include/userinput.h
new file mode 100644
index 0000000..feb59c5
--- /dev/null
+++ b/include/userinput.h
@@ -0,0 +1,6 @@
+#ifndef USERINPUT_H
+#define USERINPUT_H
+
+uint64_t input_uint();
+
+#endif
diff --git a/src/userinput.c b/src/userinput.c
new file mode 100644
index 0000000..8da1106
--- /dev/null
+++ b/src/userinput.c
@@ -0,0 +1,126 @@
+#include <gint/display.h>
+#include <gint/keyboard.h>
+#include <stdint.h>
+#include <gint/std/stdio.h>
+#include <gint/std/string.h>
+
+#define WIDTH 128
+#define HEIGHT 64
+#define TAILLE_INPUT_U64 20
+
+uint64_t atoi(char *s);
+void draw_field(int h);
+void itoa(char *s, uint64_t a);
+void clear_field(int h);
+
+uint64_t input_uint() {
+	int key = 0, h;
+	unsigned int curseur;
+	char input[TAILLE_INPUT_U64+1];
+	char nb_limite[TAILLE_INPUT_U64+1];
+	
+	uint64_t limite = -1;
+	
+	itoa(nb_limite, limite);
+	
+	for(curseur = 0; curseur <= TAILLE_INPUT_U64; ++curseur) input[curseur] = 0;
+	
+	curseur = 0;
+	
+	dsize("0", NULL, NULL, &h);
+	
+	draw_field(h);
+	
+	while(1) {
+		if(input[0] != '0' && curseur < TAILLE_INPUT_U64) {
+			switch(key) {
+				case KEY_0:
+					input[curseur++] = '0';
+					break;
+				case KEY_1:
+					input[curseur++] = '1';
+					break;
+				case KEY_2:
+					input[curseur++] = '2';
+					break;
+				case KEY_3:
+					input[curseur++] = '3';
+					break;
+				case KEY_4:
+					input[curseur++] = '4';
+					break;
+				case KEY_5:
+					input[curseur++] = '5';
+					break;
+				case KEY_6:
+					input[curseur++] = '6';
+					break;
+				case KEY_7:
+					input[curseur++] = '7';
+					break;
+				case KEY_8:
+					input[curseur++] = '8';
+					break;
+				case KEY_9:
+					input[curseur++] = '9';
+			}
+			if(curseur == TAILLE_INPUT_U64 && strcmp(input, nb_limite) > 0) input[--curseur] = 0;
+		}
+		if(curseur) {
+			switch(key) {
+				case KEY_DEL:
+					clear_field(h);
+					input[--curseur] = 0;
+					break;
+				case KEY_EXE:
+					return atoi(input);
+			}
+		}
+		
+		dtext(2, HEIGHT-2-h, input, C_BLACK, C_WHITE);
+		dupdate();
+		key = getkey().key;
+	}
+}
+
+void clear_field(int h) {
+	drect(1, HEIGHT-2-h, WIDTH-2, HEIGHT-3, C_WHITE);
+}
+
+void draw_field(int h) {
+	clear_field(h);
+	dhline(HEIGHT-4-h, C_BLACK);
+	dhline(HEIGHT-1, C_BLACK);
+	dline(0, HEIGHT-3-h, 0, HEIGHT-2, C_BLACK);
+	dline(WIDTH-1, HEIGHT-3-h, WIDTH-1, HEIGHT-2, C_BLACK);
+}
+
+uint64_t pow(const int n, unsigned int p) {
+	uint64_t retour = 1;
+	for(; p; --p) retour *= n;
+	return retour;
+}
+
+uint64_t atoi(char *s) {
+	int taille = strlen(s);
+	uint64_t retour = 0;
+	for(int puissance = 0; puissance < taille; ++puissance) {
+		retour += (s[taille-1-puissance] - '0') * pow(10, puissance);
+	}
+	return retour;
+}
+
+void itoa(char *s, uint64_t a) {
+	int i = 0, j;
+	char c;
+	while(a) {
+		s[i++] = '0' + a%10;
+		a/=10;
+	}
+	s[i] = 0;
+	for(j = 0; j < i/2; ++j) {
+		c = s[j];
+		s[j] = s[i-j-1];
+		s[i-j-1] = c;
+	}
+}