visual mode (erase and fill) - gramscii - A simple editor for ASCII box-and-arrow charts
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DIR Files
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DIR README
DIR LICENSE
---
DIR commit d87cf8ea7ec68de924179eb1dbaa13f4b52bd1aa
DIR parent c8512825e3baf1525af7117affa13d00ac6b0d1d
HTML Author: KatolaZ <katolaz@freaknet.org>
Date: Sat, 20 Jul 2019 14:47:12 +0100
visual mode (erase and fill)
Diffstat:
M TODO | 7 ++++---
M gramscii.c | 66 +++++++++++++++++++++++++++++++
2 files changed, 70 insertions(+), 3 deletions(-)
---
DIR diff --git a/TODO b/TODO
@@ -2,11 +2,12 @@
- (?) change cursor shape according to action
- auto-arrow 'A' (automatic end-char)
- read file at point
-- visual selection
++ visual selection
- crop
- - fill
- - delete
- yank/put
+ * fill
+ * delete
+- change screen management (i.e., use an array of lines)
- undo (by storing lines changed across insert/remove operations)
- manage special chars (DEL/CANC) during text insert
(also do not print unmanaged chars!)
DIR diff --git a/gramscii.c b/gramscii.c
@@ -16,6 +16,7 @@
#define ARROW 0x02
#define TEXT 0x04
#define DEL 0x08
+#define VIS 0x10
#define DIR_N 0x00
#define DIR_R 0x01
@@ -45,6 +46,9 @@
#define END 0x02
#define MIDDLE 0x04
+#define VIDEO_NRM 0
+#define VIDEO_REV 7
+
#define MIN(x,y) (x) < (y) ? (x) : (y)
#define MAX(x,y) (x) > (y) ? (x) : (y)
@@ -188,6 +192,21 @@ void erase_line(char *s){
}
}
+void erase_box(int x1, int y1, char c){
+
+ int x_incr, y_incr, i;
+
+ x_incr = x1 < x? +1: -1;
+ y_incr = y1 < y? +1: -1;
+ do{
+ i = y1;
+ do{
+ set_xy(x1, i, c);
+ } while(i != y && (1 | (i += y_incr)));
+ } while(x1 != x && (1 | (x1 += x_incr)));
+
+}
+
void erase_screen(){
int i;
for(i=0;i<HEIGHT; i++)
@@ -297,6 +316,10 @@ int progr_y(int dir){
return dir == DIR_U ? -1 : dir == DIR_D ? 1: 0;
}
+void set_video(int v){
+ printf("\033[%dm", v);
+}
+
/*** Lines and markers ***/
void toggle_hline(){
@@ -626,6 +649,45 @@ void new_file(){
modified=0;
}
+/*** Visual ***/
+
+
+void visual_box(){
+ int orig_x =x, orig_y = y;
+ char c, f = BG;
+
+ redraw();
+ step = 1;
+ set_video(VIDEO_REV);
+ draw_box(x,y,NOFIX);
+ while((c=getchar())!=EOF && c != 27 && c!= 'v'){
+ if (!move_around(c)) switch(c){
+ case 'f':/* fill */
+ f = get_key("fill char: ");
+ case 'x':/* erase */
+ erase_box(orig_x, orig_y, f);
+ modified = 1;
+ goto vis_exit;
+ break;
+ }
+ check_bound();
+ set_video(VIDEO_NRM);
+ redraw();
+ step = 1;
+ f = BG;
+ set_video(VIDEO_REV);
+ draw_box(orig_x, orig_y, NOFIX);
+ status_bar();
+ show_cursor();
+ }
+vis_exit:
+ set_video(VIDEO_NRM);
+ redraw();
+ state = MOVE;
+}
+
+
+
/*** Commands ***/
void commands(){
@@ -665,6 +727,10 @@ void commands(){
state = DEL;
delete();
break;
+ case 'v':
+ state = VIS;
+ visual_box();
+ break;
case '-':
toggle_hline();
break;