From 52a48d7718c6467da380a51f49327323e15e00c7 Mon Sep 17 00:00:00 2001
From: KatolaZ <katolaz@freaknet.org>
Date: Fri, 19 Jul 2019 18:03:29 +0100
Subject: save to file works

---
 TODO       |  16 ++++++---
 gramscii.c | 110 ++++++++++++++++++++++++++++++++++++++++++++++++++-----------
 2 files changed, 102 insertions(+), 24 deletions(-)

diff --git a/TODO b/TODO
index 1b6139d..b4d36cd 100644
--- a/TODO
+++ b/TODO
@@ -1,14 +1,20 @@
 + optimize redraws (i.e., avoid to redraw if possible)
 - (?) change cursor shape according to action
-- save to file
-- implement auto-arrow 'A' (automatic end-char)
-- implement delete 'x' or 'd' 
+- auto-arrow 'A' (automatic end-char)
+- delete -- 'x' or 'd' 
+- load from file
+- read file at point
+- visual selection
+  - crop
+  - fill
+  - delete
+  - yank/put
+- undo (by storing lines changed across insert/remove operations)
 - manage special chars (DEL/CANC) during text insert
   (also do not print unmanaged chars!)
-- load from file
-- insert file at position
 - get screen geometry
 - allow scrolling (both vertical and horizontal)
+* save to file
 * implement arrow
 * set different line styles (done for hl, vl, corner)
 * add status bar
diff --git a/gramscii.c b/gramscii.c
index 1d75b34..6011842 100644
--- a/gramscii.c
+++ b/gramscii.c
@@ -41,6 +41,10 @@
 #define ARR_D     'v'
 
 
+#define HOME   0x01
+#define END    0x02
+#define MIDDLE 0x04
+
 #define MIN(x,y)  (x) < (y) ? (x) : (y)
 #define MAX(x,y)  (x) > (y) ? (x) : (y)
 
@@ -71,7 +75,7 @@ char line_v;
 char mark_st;
 char mark_end;
 
-struct termios t1, t2;
+struct termios t1, t2, t3;
 
 
 void cleanup(int s){
@@ -245,6 +249,13 @@ void draw_box(int x1, int y1, int fix){
 }
 
 
+void move_around(char c){
+
+
+
+}
+
+
 void get_box(){
 	char c;
 	int orig_x=x, orig_y=y;
@@ -285,28 +296,12 @@ void get_box(){
 
 
 int progr_x(int dir){
-	switch(dir){
-		case DIR_L:
-			return -1;
-		case DIR_R:
-			return +1;
-		default:
-			return 0;
-	}
-	return 0;
+	return dir == DIR_L ? -1 : dir == DIR_R ? 1: 0;
 }
 
 
 int progr_y(int dir){
-	switch(dir){
-		case DIR_D:
-			return +1;
-		case DIR_U:
-			return -1;
-		default:
-			return 0;
-	}
-	return 0;
+	return dir == DIR_U ? -1 : dir == DIR_D ? 1: 0;
 }
 
 
@@ -412,9 +407,58 @@ void get_arrow(){
 	state = MOVE;
 }
 
+char get_key(char *s){
+
+	printf("\033[%d;1f\033[7m", HEIGHT+1);
+	printf("%100s", " ");
+	printf("\033[%d;1f\033[7m", HEIGHT+1);
+	printf("%s ", s);
+	printf("\033[0m");
+	return getchar();
+}
+
+void get_string(char *s, int sz){
+
+	printf("\033[%d;1f\033[7m", HEIGHT+1);
+	printf("%100s", " ");
+	printf("\033[%d;1f\033[7m", HEIGHT+1);
+	/* We must activate echo now */
+	t3 = t2;
+	t3.c_lflag |= (ECHO | ICANON);
+	tcsetattr(0, TCSANOW, &t3);
+	printf("Write to: ");
+	printf("\033[0m");
+	fgets(s, sz, stdin);
+	s[strlen(s)-1] = '\0';
+	tcsetattr(0, TCSANOW, &t2);
+}
+
+int is_yes(char c){
+	return c=='y' ? 1 : c == 'Y'? 1 : 0;
+}
+
 void write_file(){
 	char fname[256];
 	FILE *f;
+	int i;
+
+	get_string(fname, 255);
+	if (f=fopen(fname, "r")){
+		if (!is_yes(get_key("File exists. Overwrite [y/N]?")) ){
+			fclose(f);
+			return;
+		}
+		fclose(f);
+	}
+	if((f=fopen(fname, "w"))==NULL){
+		get_key("Error opening file.");
+		return;
+	}
+	for (i=0; i<HEIGHT; i++){
+		fprintf(f, "%s\n", screen[i]);
+	}
+	fclose(f);
+	get_key("File saved.");
 }
 
 void toggle_hline(){
@@ -450,6 +494,25 @@ void toggle_end_mark(){
 	mark_end = end_marks[cur_end];
 }
 
+void go_to(int where){
+	switch(where){
+		case HOME:
+			x = y = 0;
+			break;
+		case END:
+			x = WIDTH-1;
+			y = HEIGHT-1;
+			break;
+		case MIDDLE:
+			x = WIDTH/2;
+			y = HEIGHT/2;
+			break;
+	}
+	check_bound();
+	show_cursor();
+}
+
+
 void commands(){
 
 	char c;
@@ -494,6 +557,15 @@ void commands(){
 			case 'w':
 				write_file();
 				break;
+			case 'g':
+				go_to(HOME);
+				break;
+			case 'G':
+				go_to(END);
+				break;
+			case 'm':
+				go_to(MIDDLE);
+				break;
 			case '-':
 				toggle_hline();
 				break;
-- 
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