boxes

git clone git://bebou.netlib.re/boxes

Log | Files | Refs | README |

commit 2ba4be03ba59399e94a058045c1753bb8b3c68ec
parent ea7598cd3e65bec11dbf95dd798e43b7888e93b0
Auteurice: Arthur Pons <arthur.pons@unistra.fr>
Date:   Sat, 14 Jun 2025 13:50:17 +0200

On peut tracer des flèches

Le bout des flèches est pas correct
Beaucoup de copier/coller, faudrait que j'apprenne à facto ce genre de
trucs

Diffstat:
M
README
 | 
3
++-
M
boxes.c
 | 
94
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------

2 files changed, 82 insertions(+), 15 deletions(-)
diff --git a/README b/README
@@ -11,7 +11,8 @@ Aujourd'hui ne permet que de tracer 100 boites maximum
   * ctrl+z pour supprimer la dernière boite
   * entrée pour quitter
   * clique droit sur le coin d'origine d'une boite pour la supprimer
-
+  * a pour tracer des flèches
+  * b pour tracer des boites (mode par défaut)
 
 ## Ce qu'il n'y a pas
 
diff --git a/boxes.c b/boxes.c
@@ -4,7 +4,9 @@
 #define MAX_BOX_NB 100
 
 struct box { int x; int y; int h; int w; };
-struct pile { struct box* list; int count; };
+struct arrow { int startx; int starty; int endx; int endy; };
+struct boxpile { struct box* list; int count; };
+struct arrowpile { struct arrow* list; int count; };
 
 void drawboxcoord(int x, int y, int w, int h) {
 	if(w<0) { x=x+w; w=-w; }
@@ -26,16 +28,51 @@ void drawboxcoord(int x, int y, int w, int h) {
 
 void drawbox(struct box b) { drawboxcoord(b.x,b.y,b.w,b.h); }
 
+void drawarrowcoord(int startx, int starty, int endx, int endy) {
+	int i=0; int j=0; signed int nx; signed int ny;
+	if(endx<startx) nx=-1; else nx=1;
+	if(endy<starty) ny=-1; else ny=1;
+	for(i=0;i<abs(startx-endx);i++) {
+		tb_printf(startx+nx*i,starty+ny*j,0,0,"─");
+	}
+	if(ny==1 && nx==1)       tb_printf(startx+nx*i,starty,0,0,"╮");
+	else if(ny==1 && nx==-1) tb_printf(startx+nx*i,starty,0,0,"╭");
+	else if(ny==-1 && nx==1) tb_printf(startx+nx*i,starty,0,0,"╯");
+	else                     tb_printf(startx+nx*i,starty,0,0,"╰");
+	for(int j=1;j<abs(starty-endy);j++) {
+		tb_printf(startx+nx*i,starty+ny*j,0,0,"│");
+	}
+	tb_printf(endx,endy,0,0,"→");
+	tb_printf(0,0,TB_DEFAULT,TB_DEFAULT,"start: x%d,y%d, end: x%d,y%d",startx,starty,endx,endy);
+}
+
+void drawarrow(struct arrow a) { drawarrowcoord(a.startx,a.starty,a.endx,a.endy); }
+
+struct arrow createarrow(int startx, int starty, int endx, int endy) {
+	struct arrow a;
+	a.startx=startx; a.starty=starty; a.endx=endx; a.endy=endy; return a;
+}
+
+void addarrow(struct arrowpile *arrows, struct arrow a) {
+	arrows->list[arrows->count]=a;
+	arrows->count++;
+}
+
+void deletearrow(struct arrowpile *arrows, int index) {
+	for (int i=index;i<arrows->count-1;i++) arrows->list[i]=arrows->list[i+1];
+	if(arrows->count>0) arrows->count--;
+}
+
 struct box createbox(int x, int y, int w, int h) {
 	struct box b; b.x=x; b.y=y; b.w=w; b.h=h; return b;
 }
 
-void addbox(struct pile *boxes, struct box b) {
+void addbox(struct boxpile *boxes, struct box b) {
 	boxes->list[boxes->count]=b;
 	boxes->count++;
 }
 
-void deletebox(struct pile *boxes, int index) {
+void deletebox(struct boxpile *boxes, int index) {
 	for (int i=index;i<boxes->count-1;i++) boxes->list[i]=boxes->list[i+1];
 	if(boxes->count>0) boxes->count--;
 }
@@ -44,31 +81,60 @@ int main(int argc, char **argv) {
 	tb_init();
 	tb_hide_cursor();
 	tb_set_input_mode(TB_INPUT_ESC | TB_INPUT_MOUSE);
+	int mode=0;
 	struct tb_event ev;
-	struct pile boxes; boxes.list=malloc(MAX_BOX_NB*sizeof(struct box)); boxes.count=0;
+	struct boxpile boxes; boxes.list=malloc(MAX_BOX_NB*sizeof(struct box)); boxes.count=0;
+	struct arrowpile arrows; arrows.list=malloc(MAX_BOX_NB*sizeof(struct arrow)); arrows.count=0;
 	int curx; int cury;
 	while(1) {
 		tb_clear();
 		for (int i=0;i<boxes.count;i++) drawbox(boxes.list[i]);
-		tb_printf(0,tb_height()-1,TB_DEFAULT,TB_DEFAULT,"count: %d",boxes.count);
+		for (int i=0;i<arrows.count;i++) drawarrow(arrows.list[i]);
+		tb_printf(0,tb_height()-1,TB_DEFAULT,TB_DEFAULT,"count: %d, mode: %d",boxes.count,mode);
 		tb_present();
 		tb_poll_event(&ev);
+		switch(ev.ch) {
+			case 97: /*a*/
+				mode=1;
+				break;
+			case 98: /*b*/
+				mode=0;
+				break;
+		}
 		switch(ev.key) {
 			case 13: /*Enter*/
 				tb_shutdown();
 				free(boxes.list);
 				return 0;
 			case 65512: /*MouseLeft*/
-				if(boxes.count==MAX_BOX_NB) break;
-				curx=ev.x; cury=ev.y;
-				while(ev.key!=65509) { /*MouseRelease*/
-					tb_clear();
-					for (int i=0;i<boxes.count;i++) drawbox(boxes.list[i]);
-					drawboxcoord(curx,cury,ev.x-curx,ev.y-cury);
-					tb_present();
-					tb_poll_event(&ev);
+				switch(mode) {
+					case 0:
+						if(boxes.count==MAX_BOX_NB) break;
+						curx=ev.x; cury=ev.y;
+						while(ev.key!=65509) { /*MouseRelease*/
+							tb_clear();
+							for (int i=0;i<boxes.count;i++) drawbox(boxes.list[i]);
+							for (int i=0;i<arrows.count;i++) drawarrow(arrows.list[i]);
+							drawboxcoord(curx,cury,ev.x-curx,ev.y-cury);
+							tb_present();
+							tb_poll_event(&ev);
+						}
+						addbox(&boxes,createbox(curx,cury,ev.x-curx,ev.y-cury));
+						break;
+					case 1:
+						if(arrows.count==MAX_BOX_NB) break;
+						curx=ev.x; cury=ev.y;
+						while(ev.key!=65509) { /*MouseRelease*/
+							tb_clear();
+							for (int i=0;i<boxes.count;i++) drawbox(boxes.list[i]);
+							for (int i=0;i<arrows.count;i++) drawarrow(arrows.list[i]);
+							drawarrowcoord(curx,cury,ev.x,ev.y);
+							tb_present();
+							tb_poll_event(&ev);
+						}
+						addarrow(&arrows,createarrow(curx,cury,ev.x,ev.y));
+						break;
 				}
-				addbox(&boxes,createbox(curx,cury,ev.x-curx,ev.y-cury));
 				break;
 			case 26: /*ctrl+z*/
 				deletebox(&boxes,boxes.count-1);