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Deffered texture upding in viewer widget

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This commit is contained in:
Joppe Blondel
2025-08-01 14:17:36 +02:00
parent 9306f2d6ea
commit 679b47262a
2 changed files with 28 additions and 54 deletions
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15
negstation/widgets/stage_viewer_widget.py
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@ -19,6 +19,7 @@ class StageViewerWidget(BaseWidget):
self.current = None
self.texture_tag = dpg.generate_uuid()
self.img = None
self.needs_update = False
# Subscribe only to stage list updates
self.manager.bus.subscribe(
@ -44,7 +45,8 @@ class StageViewerWidget(BaseWidget):
def on_resize(self, app_data):
if self.img is not None:
self.update_texture(self.img)
self.needs_update = True
# self.update_texture(self.img)
def on_stage_list(self, stages):
# Update dropdown items
@ -56,7 +58,8 @@ class StageViewerWidget(BaseWidget):
if name == self.current:
if img is not None:
self.img = img
self.update_texture(img)
self.needs_update = True
# self.update_texture(img)
def on_select(self, sender, selected_stage):
# User-picked stage: fetch and render
@ -64,7 +67,8 @@ class StageViewerWidget(BaseWidget):
img = self.manager.pipeline.get_stage(selected_stage)
if img is not None:
self.img = img
self.update_texture(img)
self.needs_update = True
# self.update_texture(img)
def update_texture(self, img: np.ndarray):
# img is a NumPy array with shape (h, w, 4)
@ -105,3 +109,8 @@ class StageViewerWidget(BaseWidget):
width=disp_w,
height=disp_h
)
def update(self):
if self.needs_update:
self.needs_update = False
self.update_texture(self.img)