integer input

r0ketlib/intin.c

@@ -0,0 +1,92 @@
+#include <string.h>
+
+#include <r0ketlib/keyin.h>
+#include <r0ketlib/render.h>
+#include <r0ketlib/display.h>
+#include <r0ketlib/print.h>
+#include <r0ketlib/itoa.h>
+
+#define CHARWIDTH 10
+
+struct intin{
+    char *prompt;
+    int the_number, digits, min, max, pos;
+    bool done;
+} s_int;
+
+int power(int base, unsigned int exp) {
+    int i, result = 1;
+    for (i = 0; i < exp; i++)
+        result *= base;
+    return result;
+ }
+
+
+static void intinInit(char p[], int initial, int min, int max, int digits) {
+	s_int.prompt = p;
+	s_int.the_number = initial;
+  s_int.digits = digits;
+	s_int.min = min;
+  s_int.max = max;
+  s_int.pos = 0;
+	s_int.done = false;
+}
+
+
+static void intinMove() {
+	switch(getInputWaitRepeat()){
+        case BTN_LEFT:
+            if (s_int.pos > 0) {
+                s_int.pos --;
+            }
+            break;
+        case BTN_RIGHT:
+            if (s_int.pos < s_int.digits-1) {
+                s_int.pos++;
+            }
+            break;
+        case BTN_UP:
+            s_int.the_number += power(10,s_int.digits-s_int.pos-1);
+            break;
+        case BTN_DOWN:
+          s_int.the_number -= power(10,s_int.digits-s_int.pos-1);
+            break;
+        case BTN_ENTER:
+            s_int.done = true;
+//            getInputWaitRelease();
+            break;
+    }
+}
+
+static void intinDraw() {
+  lcdClear();
+	lcdPrint(s_int.prompt);
+	for (int dx = 0; dx< s_int.digits; dx++){
+		DoChar(dx*CHARWIDTH,20,IntToStr(s_int.the_number,s_int.digits,F_LONG|F_ZEROS)[dx]);
+	}
+  DoChar(s_int.pos * CHARWIDTH, 30, '^');
+
+}
+
+static void intinClean() {
+  if (s_int.the_number > s_int.max)
+    s_int.the_number = s_int.max;
+  if (s_int.the_number < s_int.min)
+    s_int.the_number = s_int.min;
+}
+
+int input_int(char prompt[], int initial, int min, int max, int digits) {
+	setSystemFont();
+  setTextColor(0xFF,0x00);
+	intinInit(prompt, initial, min, max, digits);
+	while (!s_int.done) {
+		intinDraw();
+		lcdDisplay();
+		intinMove();
+    intinClean();
+	}
+  lcdPrintln("");
+  lcdPrint("number: ");
+  lcdPrintln(IntToStr(s_int.the_number,s_int.digits,F_LONG|F_ZEROS));
+	return s_int.the_number;
+}

r0ketlib/intin.h

@@ -0,0 +1 @@
+int input_int(char prompt[], int initial, int min, int max, int digits);

testapp/Makefile

@@ -26,6 +26,7 @@ OBJS += ../r0ketlib/execute.o
 OBJS += ../r0ketlib/config.o
 OBJS += ../r0ketlib/stringin.o
 OBJS += ../r0ketlib/colorin.o
+OBJS += ../r0ketlib/intin.o
 OBJS += ../r0ketlib/random.o
 OBJS += ../r0ketlib/image.o
 OBJS += ../lpcapi/msc/msc_desc.o