From d8cbdc79fa21a70eaa8c42fb43a9a75d59b70fd3 Mon Sep 17 00:00:00 2001
From: iggy <iggy@yggi.de>
Date: Sat, 30 Jul 2011 19:28:37 +0200
Subject: [PATCH] string input + demo

---
 firmware/applications/inputtest.c |  29 ++++++++
 firmware/basic/Makefile           |   1 +
 firmware/basic/basic.h            |   2 +
 firmware/basic/stringin.c         | 107 ++++++++++++++++++++++++++++++
 4 files changed, 139 insertions(+)
 create mode 100644 firmware/applications/inputtest.c
 create mode 100644 firmware/basic/stringin.c

diff --git a/firmware/applications/inputtest.c b/firmware/applications/inputtest.c
new file mode 100644
index 0000000..0512abe
--- /dev/null
+++ b/firmware/applications/inputtest.c
@@ -0,0 +1,29 @@
+#include <sysinit.h>
+
+#include "basic/basic.h"
+#include "lcd/render.h"
+#include "lcd/display.h"
+#include "lcd/allfonts.h"
+
+#define CHARWIDTH 12
+#define CHARSPACE 0x20
+
+void main_inputtest(void) {
+    backlightInit();
+	
+	char nick[20];
+	memset(nick,0,20);
+	strcpy(nick,"iggy");
+   
+	while(1) {
+	   input("Nick?", nick, 0x20, 0x7f, 20);
+	   
+	   lcdFill(0);
+	   font=&Font_Orbitron14pt;
+	   DoString(20,20,nick);
+	   lcdDisplay();
+	   
+	   while(getInput() != BTN_ENTER){}
+	}
+}
+
diff --git a/firmware/basic/Makefile b/firmware/basic/Makefile
index eb3b501..5f772fd 100644
--- a/firmware/basic/Makefile
+++ b/firmware/basic/Makefile
@@ -20,6 +20,7 @@ OBJS += random.o
 OBJS += idle.o
 OBJS += config.o
 OBJS += itoa.o
+OBJS += stringin.o
 
 LIBNAME=basic
 
diff --git a/firmware/basic/basic.h b/firmware/basic/basic.h
index d218cd6..ec82179 100644
--- a/firmware/basic/basic.h
+++ b/firmware/basic/basic.h
@@ -153,6 +153,8 @@ uint8_t getInputRaw(void);
 uint8_t getInputWait(void);
 void getInputWaitRelease(void);
 
+// stringin.c
+void input(char prompt[], char line[], uint8_t asciistart, uint8_t asciiend, uint8_t maxlength);
 //uuid.c
 #include "basic/uuid.h"
 
diff --git a/firmware/basic/stringin.c b/firmware/basic/stringin.c
new file mode 100644
index 0000000..20e72bb
--- /dev/null
+++ b/firmware/basic/stringin.c
@@ -0,0 +1,107 @@
+
+#include "basic/basic.h"
+#include "lcd/render.h"
+#include "lcd/display.h"
+#include "lcd/allfonts.h"
+
+#define CHARWIDTH 12
+#define CHARSPACE 0x20
+
+struct in{
+    char *line, *prompt;
+    uint8_t pos, dcursor, maxlength, asciistart, asciiend;
+	bool done;
+} s_input;
+
+void inputInit(char p[],char s[], uint8_t l, uint8_t as, uint8_t ae) {
+	//TODO: Check length!
+	s_input.prompt = p;
+	s_input.line = s;
+	s_input.maxlength = l;
+	s_input.asciistart = as;
+	s_input.asciiend = ae;
+	s_input.pos = 0;
+	s_input.dcursor = 0;
+	s_input.done = false;
+}
+
+
+void inputMove() {
+	char *cur = s_input.line+s_input.pos+s_input.dcursor;
+	char key = getInput();
+	 if (key == BTN_LEFT) {
+		if (s_input.dcursor >0) {
+			s_input.dcursor --;
+		} else if (s_input.pos > 0) {
+			s_input.pos --;
+		}
+    } else if (key == BTN_RIGHT) {
+    	if (s_input.dcursor <RESX/CHARWIDTH-1 && s_input.pos + s_input.dcursor < s_input.maxlength) {
+			if (*cur == 0) {
+				*cur = CHARSPACE;
+			}
+			s_input.dcursor ++;
+		} else if (s_input.pos + RESX/CHARWIDTH < s_input.maxlength) {
+			s_input.pos++;
+	 		if (*cur == 0) {
+				*cur = CHARSPACE;
+			}
+		}			
+	} else if (key == BTN_DOWN) {
+	    if (*cur <= s_input.asciistart) {
+			*cur = s_input.asciiend;
+		} else if (*cur > s_input.asciiend) {
+			*cur = s_input.asciiend;
+		} else  {
+			*cur = *cur - 1;
+		}
+	} else if (key == BTN_UP) {
+		if (*cur >= s_input.asciiend) {
+		   *cur = s_input.asciistart;
+		} else if (*cur < s_input.asciistart) {
+		   *cur = s_input.asciistart;
+		} else {
+			*cur = *cur + 1;
+		}
+	} else if (key == (BTN_ENTER)) {
+		s_input.done = true;
+	}
+}
+
+void inputDraw() {
+	lcdFill(0);
+	DoString(0,0,s_input.prompt);
+	for (int dx = 0; dx<= RESX/CHARWIDTH && s_input.pos+dx<s_input.maxlength; dx++){
+		char tmp[1];
+		tmp[0] = s_input.line[s_input.pos+dx];
+		DoString(dx*CHARWIDTH, 30,tmp);
+	}
+	DoString(s_input.dcursor * CHARWIDTH, 40, "-");
+}
+
+void inputClean() {
+	for (int x=0;x<=s_input.maxlength;x++) {
+		if (s_input.line[x] == 0) {
+			x--;
+			while (s_input.line[x] == CHARSPACE && x>=0) {
+				s_input.line[x] = 0;
+				x--;
+			}
+			return;
+		}
+	}
+}
+
+void input(char prompt[], char line[], uint8_t asciistart, uint8_t asciiend, uint8_t maxlength){
+ 	font=&Font_7x8;	
+	inputInit(prompt, line, maxlength, asciistart, asciiend);
+    lcdFill(0);
+	while (!s_input.done) {
+        lcdDisplay();
+        inputMove();
+        inputDraw();
+    }
+	inputClean();
+	return;
+}
+