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

imageview: add next and previous buttons

Browse Source
This commit is contained in:
Thomas Farstrike
2025-06-10 00:54:56 +02:00
parent 6de33490af
commit 863d5bee90
1 changed files with 33 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
internal_filesystem/apps/com.micropythonos.imageview/assets/imageview.py
+33 -9
View File
@@ -10,18 +10,28 @@ class ImageView(Activity):
#imagedir = "/home/user/Downloads/"
#imagedir = "/home/user/images/"
images = []
image_nr = 0
image_nr = None
image_timer = None
image = None
def onCreate(self):
screen = lv.obj()
self.label = lv.label(screen)
self.label.set_text('Hello Images!')
self.label.align(lv.ALIGN.TOP_MID,0,0)
self.image = lv.image(screen)
self.image.set_size(128, 128)
self.image.align(lv.ALIGN.BOTTOM_MID,0,0)
self.label = lv.label(screen)
self.label.set_text('Hello Images!')
self.label.align(lv.ALIGN.TOP_MID,0,0)
self.next_button = lv.button(screen)
self.next_button.align(lv.ALIGN.BOTTOM_RIGHT,0,0)
self.next_button.add_event_cb(lambda e: self.show_next_image(),lv.EVENT.CLICKED,None)
next_label = lv.label(self.next_button)
next_label.set_text(">")
self.prev_button = lv.button(screen)
self.prev_button.align(lv.ALIGN.BOTTOM_LEFT,0,0)
self.prev_button.add_event_cb(lambda e: self.show_prev_image(),lv.EVENT.CLICKED,None)
prev_label = lv.label(self.prev_button)
prev_label.set_text("<")
self.setContentView(screen)
def onResume(self, screen):
@@ -33,27 +43,41 @@ class ImageView(Activity):
size = os.stat(fullname)[6]
print(f"size: {size}")
if size > 10 * 1024*1024:
#if size > 60000:
print(f"Skipping file of size {size}")
continue
self.images.append(fullname)
self.image_timer = lv.timer_create(self.show_next_image, 1000, None)
# Begin with one image:
self.show_next_image()
#self.image_timer = lv.timer_create(self.show_next_image, 1000, None)
def onStop(self, screen):
if self.image_timer:
print("ImageView: deleting image_timer")
self.image_timer.delete()
def show_next_image(self, event):
def show_prev_image(self, event=None):
print("showing previous image...")
if len(self.images) < 1:
return
if self.image_nr is None or self.image_nr == 0:
self.image_nr = len(self.images) - 1
else:
self.image_nr = self.image_nr - 1
name = self.images[self.image_nr]
print(f"show_prev_image showing {name}")
self.show_image(name)
def show_next_image(self, event=None):
print("showing next image...")
if len(self.images) < 1:
return
if self.image_nr >= len(self.images):
if self.image_nr is None or self.image_nr >= len(self.images) - 1:
self.image_nr = 0
else:
self.image_nr = self.image_nr + 1
name = self.images[self.image_nr]
print(f"show_next_image showing {name}")
self.show_image(name)
self.image_nr = self.image_nr + 1
def show_image(self, name):
try: