m5/MicroPythonOS
0
0
Fork 0
mirror of https://github.com/m5stack/MicroPythonOS.git synced 2026-05-20 11:51:27 -07:00
Code Issues Packages Projects Releases Wiki Activity

draw: prevent crash due to drawing out of bounds

Browse Source
This commit is contained in:
Thomas Farstrike
2025-05-10 17:58:19 +02:00
parent 40dd2b0b6e
commit 717e841c81
1 changed files with 6 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
internal_filesystem/apps/com.example.draw/assets/draw.py
+6 -1
View File
@@ -88,6 +88,7 @@ def get_xy():
else:
return indev_error_x,indev_error_y # make it visible that this occurred
# doesnt work:
def draw_line(x, y):
global canvas
# Line drawing like this doesn't work:
@@ -145,7 +146,11 @@ def touch_cb(event):
for dx in range(-radius, radius):
for dy in range(-radius, radius):
if dx * dx + dy * dy <= square:
canvas.set_px(x + dx, y + dy, DARKPINK, lv.OPA.COVER)
newx, newy = x + dx, y + dy
if 0 <= newx <= hor_res and 0 <= newy <= ver_res:
canvas.set_px(x + dx, y + dy, DARKPINK, lv.OPA.COVER)
else:
print(f"Not drawing outside of canvas at {newx},{newy} because that crashes.")
canvas = lv.canvas(appscreen)