From 5dd00eaf46bd250099c368c7b4a66e0e4dfc4b6f Mon Sep 17 00:00:00 2001
From: KatolaZ <katolaz@freaknet.org>
Date: Thu, 18 Jul 2019 18:46:58 +0100
Subject: different line styles

---
 TODO       |  13 +++--
 gramscii.c | 158 ++++++++++++++++++++++++++++++++++---------------------------
 2 files changed, 98 insertions(+), 73 deletions(-)

diff --git a/TODO b/TODO
index 956af84..e9d7819 100644
--- a/TODO
+++ b/TODO
@@ -1,9 +1,14 @@
 + optimize redraws (i.e., avoid to redraw if possible)
-- change cursor shape according to action
-+ implement box
+- (?) change cursor shape according to action
+- save to file
 - implement arrow
-- set different box styles
-+ add status bar
+- 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)
+* set different line styles (done for hl, vl, corner)
+* add status bar
+* implement box
  
diff --git a/gramscii.c b/gramscii.c
index 40d1f1e..bf988be 100644
--- a/gramscii.c
+++ b/gramscii.c
@@ -26,14 +26,12 @@
 #define WIDTH  100
 #define HEIGHT  25
 
+#define NOFIX 0x0
+#define FIX   0x1
+
 #define BG        ' '
 #define PTR       '+'
 #define UND       '_'
-#define LINE_H    '-'
-#define LINE_V    '|'
-#define DBLINE_H  '='
-#define DBLINE_V  'u'
-#define BLDLINE   '#'
 #define ARR_L     '<'
 #define ARR_R     '>'
 #define ARR_U     '^'
@@ -52,10 +50,15 @@ int y;
 int step;
 char cursor;
 char corner;
-char box_line_h;
-char box_line_v;
-char arrow_line_h;
-char arrow_line_v;
+char hlines[]  = {"-~=#@._"};
+char vlines[]  = {"|H#@:;i"};
+char corners[] = {"+'H#@.\""};
+int hlines_sz= sizeof(hlines);
+int vlines_sz= sizeof(vlines);
+int corners_sz = sizeof(corners);
+int cur_hl, cur_vl, cur_corn;
+char line_h;
+char line_v;
 
 struct termios t1, t2;
 
@@ -69,8 +72,6 @@ void cleanup(int s){
 
 void show_cursor(){
 	printf("\033[%d;%df", y+1, x+1);
-	//putchar(screen[y][x]);
-	//printf("\033[%d;%df", y+1, x+2);
 }
 
 void set(char c){
@@ -88,46 +89,46 @@ void draw_xy(int x, int y, char c){
 	putchar(c);	
 }
 
-void clear(){
-	screen[y][x] = BG;
-}
-
 void init_screen(){
 	int i;
 	for(i=0; i<HEIGHT; i++){
 		memset(screen[i], ' ', WIDTH);
 		screen[i][WIDTH]='\0';
 	}
-	cursor = PTR;
-	corner = PTR;
-	box_line_h = LINE_H;
-	box_line_v = LINE_V;
-	arrow_line_h = LINE_H;	
-	arrow_line_v = LINE_V;	
+	cur_corn = 0;
+	corner = corners[0];
+	cur_hl = cur_vl = 0;
+	line_h = hlines[cur_hl];
+	line_v = vlines[cur_vl];
 }
 
 char* state_str(){
 	switch(state){
 		case MOVE:
-			return "mv ";
+			return "mov";
 		case TEXT:
 			return "txt";
 		case BOX:
 			return "box";
 		case ARROW:
 			return "arr";
+		default:
+			return "ERR";
 	}
+	return "ERR";	
 }
 
 
 void status_bar(){
 	
 	printf("\033[%d;1f\033[7m", HEIGHT+1);
-	printf(" x: %d y: %d -- mode: %s", x, y, state_str());
+	printf(" x: %3d y: %3d -- mode: %4s hl: %c vl: %c cn: %c %10s", 
+		x, y, state_str(), line_h, line_v, corner, "");
+
 	printf("\033[0m");
 }
 
-int redraw(){
+void redraw(){
 	int i;
 	
 	printf("\033[2J\033[1;1H");
@@ -171,11 +172,12 @@ void check_bound(){
 }
 
 
+/*****  text, box, arrows  *****/
+
 void get_text(){
 	char c;
-	int orig_x = x, orig_y = y;
+	int orig_x = x;
 	
-	//cursor = UND;
 	redraw();
 	while((c=getchar())!=EOF && c != 27){
 		if(c=='\n'){
@@ -194,59 +196,38 @@ void get_text(){
 		status_bar();
 		show_cursor();
 	}
-	cursor = PTR;
 	state=MOVE;
 }
 
 
-void fix_box(int x1, int y1){
+void draw_box(int x1, int y1, int fix){
 
 	int xmin, ymin, xmax, ymax;
 	int i;
-	
-	xmin = MIN(x, x1);
-	xmax = MAX(x, x1);
-	ymin = MIN(y, y1);
-	ymax = MAX(y, y1);
+	void (*f)(int, int, char);
 
-	
-	for(i=xmin+1; i<=xmax; i++){
-		set_xy(i, ymin, box_line_h);
-		set_xy(i, ymax, box_line_h);
-	}
-	for(i=ymin+1; i<=ymax; i++){
-		set_xy(xmin, i, box_line_v);
-		set_xy(xmax, i, box_line_v);
-	}
-	set_xy(xmin, ymin, corner);
-	set_xy(xmin, ymax, corner);
-	set_xy(xmax, ymin, corner);
-	set_xy(xmax, ymax, corner);
-}
-
-void draw_box(int x1, int y1){
-
-	int xmin, ymin, xmax, ymax;
-	int i;
+	if (fix == FIX)
+		f = set_xy;
+	else
+		f = draw_xy;
 	
 	xmin = MIN(x, x1);
 	xmax = MAX(x, x1);
 	ymin = MIN(y, y1);
 	ymax = MAX(y, y1);
 
-	
 	for(i=xmin+1; i<=xmax; i++){
-		draw_xy(i, ymin, box_line_h);
-		draw_xy(i, ymax, box_line_h);
+		f(i, ymin, line_h);
+		f(i, ymax, line_h);
 	}
 	for(i=ymin+1; i<=ymax; i++){
-		draw_xy(xmin, i, box_line_v);
-		draw_xy(xmax, i, box_line_v);
+		f(xmin, i, line_v);
+		f(xmax, i, line_v);
 	}
-	draw_xy(xmin, ymin, corner);
-	draw_xy(xmin, ymax, corner);
-	draw_xy(xmax, ymin, corner);
-	draw_xy(xmax, ymax, corner);
+	f(xmin, ymin, corner);
+	f(xmin, ymax, corner);
+	f(xmax, ymin, corner);
+	f(xmax, ymax, corner);
 	show_cursor();
 }
 
@@ -254,10 +235,10 @@ void draw_box(int x1, int y1){
 void get_box(){
 	char c;
 	int orig_x=x, orig_y=y;
-
-	set(PTR);
+	
 	redraw();
-	while((c=getchar())!=EOF && c != 27){
+	draw_box(x,y,NOFIX);
+	while((c=getchar())!=EOF && c != 27 && c!= 'b'){
 		switch(c){
 			case 'H': step = 5;
 			case 'h': 
@@ -278,16 +259,44 @@ void get_box(){
 		}
 		check_bound();
 		redraw();
-		draw_box(orig_x, orig_y);
+		draw_box(orig_x, orig_y, NOFIX);
 		status_bar();
 		show_cursor();
 	}
-	fix_box(orig_x, orig_y);
+	if (c == 'b')
+		draw_box(orig_x, orig_y, FIX);
 	redraw();
+	state = MOVE;
 }
 
 
-int commands(){
+void write_file(){
+	char fname[256];
+	FILE *f;
+}
+
+void toggle_hline(){
+
+	cur_hl = (cur_hl + 1) % hlines_sz;
+	line_h = hlines[cur_hl];
+	
+}
+
+void toggle_corner(){
+	
+	cur_corn = (cur_corn + 1 ) % corners_sz;
+	corner = corners[cur_corn];
+
+}
+
+void toggle_vline(){
+
+	cur_vl = (cur_vl + 1) % vlines_sz;
+	line_v = vlines[cur_vl];
+
+}
+
+void commands(){
 
 	char c;
 	while((c=getchar())!=EOF){
@@ -321,8 +330,21 @@ int commands(){
 				redraw();
 				break;
 			case 'b':
+				state = BOX;
 				get_box();
 				break;
+			case 'w':
+				write_file();
+				break;
+			case '-':
+				toggle_hline();
+				break;
+			case '|':
+				toggle_vline();
+				break;
+			case '+':
+				toggle_corner();
+				break;
 			case 'Q':
 			case 'q':
 				cleanup(0);
@@ -332,8 +354,6 @@ int commands(){
 				//statu("got: %d\n", c);
 		}
 		check_bound();
-		//update();
-		//redraw();
 		status_bar();
 		show_cursor();
 		step = 1;
-- 
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