Added title update

chr6.c

@@ -19,6 +19,7 @@ typedef struct Point {
 typedef struct Brush {
 	int color;
 	int down;
+	int edit;
 	Point pos;
 } Brush;
 
@@ -41,6 +42,12 @@ setpt(Point* p, int x, int y)
 	return p;
 }
 
+int
+inspt(Point* p, int w, int h)
+{
+	return p->x >= 0 && p->y >= 0 && p->x < w && p->y < h;
+}
+
 void
 pixel(uint32_t* dst, Point p, int c)
 {
@@ -112,7 +119,7 @@ edit(Brush* b)
 {
 	Point p1;
 	setpt(&p1, b->pos.x - PAD, b->pos.y - PAD);
-	if(p1.x < 0 || p1.y < 0 || p1.x > (8 * HOR) * ZOOM || p1.y > (8 * VER) * ZOOM)
+	if(!inspt(&p1, 8 * HOR * ZOOM, 8 * VER * ZOOM))
 		return;
 	write(
 	    p1.x / (8 * ZOOM),
@@ -120,7 +127,8 @@ edit(Brush* b)
 	    (p1.x / ZOOM) % 8,
 	    (p1.y / ZOOM) % 8,
 	    b->color);
-	SDL_SetWindowTitle(gWindow, "chr6*");
+	b->edit = 1;
+	update(b);
 	redraw();
 }
 
@@ -130,17 +138,26 @@ erase(Brush* b)
 	int i, id;
 	Point p1;
 	setpt(&p1, b->pos.x - PAD, b->pos.y - PAD);
-	if(p1.x < 0 || p1.y < 0 || p1.x > 128 * ZOOM || p1.y > 128 * ZOOM)
+	if(!inspt(&p1, 8 * HOR * ZOOM, 8 * VER * ZOOM))
 		return;
 	id = (p1.x / (8 * ZOOM)) + (p1.y / (8 * ZOOM)) * 16;
 	for(i = 0; i < 8; ++i) {
 		buffer[(id * 16) + i] = 0x00;
 		buffer[(id * 16) + i + 8] = 0x00;
 	}
-	SDL_SetWindowTitle(gWindow, "chr6*");
+	b->edit = 1;
+	update(b);
 	redraw();
 }
 
+void
+update(Brush* b)
+{
+	char title[512];
+	snprintf(title, 512, "chr6 | c%d %d:%d^%d%c", b->color, HOR, VER, ZOOM, b->edit ? '*' : ' ');
+	SDL_SetWindowTitle(gWindow, title);
+}
+
 int
 error(char* msg, const char* err)
 {
@@ -158,13 +175,14 @@ create(void)
 }
 
 void
-save(void)
+save(Brush* b)
 {
 	FILE* f = fopen("output.chr", "wb");
 	if(!fwrite(buffer, sizeof(buffer), 1, f))
 		error("Save", "Invalid output file");
 	fclose(f);
-	SDL_SetWindowTitle(gWindow, "chr6");
+	b->edit = 0;
+	update(b);
 }
 
 void
@@ -234,11 +252,15 @@ dokey(SDL_Event* event, Brush* b)
 		quit();
 		break;
 	case SDLK_e:
-		save();
+		save(b);
 		break;
 	case SDLK_r:
 		render();
 		break;
+	case SDLK_TAB:
+		b->color = b->color > 2 ? 0 : b->color + 1;
+		update(b);
+		break;
 	case SDLK_h:
 		GUIDES = !GUIDES;
 		redraw();
@@ -296,7 +318,9 @@ main(int argc, char** argv)
 {
 	int ticknext = 0;
 	Brush brush;
+	brush.down = 0;
 	brush.color = 1;
+	brush.edit = 0;
 
 	if(!init())
 		return error("SDL", "failure");
@@ -307,6 +331,7 @@ main(int argc, char** argv)
 		load(argv[1]);
 	else
 		create();
+	update(&brush);
 
 	/* main loop */