All Questions
Tagged with pyqt5 qgraphicsview
128
questions
1
vote
1
answer
37
views
Why do the QGraphicsBlurEffect makes my QGraphicsView not work?
I am using the QGraphicsView widget on PyQt5 and I created some custom QGraphicsItems.
When I instantiate without any effect my items, I get this :
When I add those three lines :
blur = ...
- 39
0
votes
1
answer
43
views
Enable Pan/Zoom in QGraphicsView
I'm using Python and QtDesigner to display camera images with an overlay.
My MainWindow gives access to camera settings, and trigger the camera accordingly. It sends each image via pyQtSlot to a ...
- 27
1
vote
2
answers
37
views
QGraphicsView and QSplitter: collapsing and unfolding area does not restore image
I am trying to create a basic program that has two side-by-side panels: one with image, and one with text. I am using splitter to be able to resize both areas up to the point of completely collapsing ...
- 655
0
votes
1
answer
81
views
PyQt5 - Ignoring widgets within QGraphicsView when dragging and dropping
I have a test PyQt application with a QGraphicsView/Scene, and a toolbar with a button in it which allows one to drag a shape into the viewport.
There's also another button in the middle of the ...
- 59
0
votes
1
answer
135
views
How to insert a vertex into a QGraphicsPolygonItem?
This polygon is drawn by the QGraphicsPolygonItem and the QGraphicsPathItem. Now I want to add vertices by clicking on the polygon edge with the mouse, but I added the code to add vertices, which ...
- 15
1
vote
1
answer
187
views
Spline Editor in PyQt5 QGraphicsView
I'm trying to do a spline editor where the knots are movable points that define a spline (calculated each time the points move). I have a code using Tkinter working perfectly:
import tkinter as tk
...
- 13
0
votes
0
answers
55
views
Pyqt5 - Paint event not being called when view moves too quickly
I have a PyQt5 application which shows a window containing some items and a ruler on both sides.
For example:
The structure of the application is as follows:
The widget containing the QGraphicsView ...
-1
votes
1
answer
26
views
QGraphicsView focusEvent on proxy widget
In pyqt5 if i have a QGraphicsView widget and in the scene i use addWidget to add a QFrame as a proxy widget.
Is there any way to call a method whenever the QFrame is focused (for example mouse click)....
- 2,289
0
votes
1
answer
67
views
Two sync QGrapchisView layers miss aligned scene rect after zoom event, but aligned after pan events
I have two classes of edited QGrapchicsView, one (GraphicsView) shows lines and it enables zoom and pan. The second class (PolygonGrapchisView) only updates the scene rect to match that of the first ...
- 610
0
votes
1
answer
172
views
How to set shape in QGraphicsPolygonItem which have subpath?
I try to draw a polygon and the polygon with some join points.But when i create it's shape, the path that have a CircleItem shadow .That is not I wanted.
the code
from PyQt5.QtCore import *
from PyQt5....
- 1,131
1
vote
1
answer
274
views
How to fit a QGraphicsView to the width of the parent view in PyQt5?
The below class is a test to display a pdf file and a text box ontop inside a QGraphicsView. I would like to show only the top part of the pdf. And it is supposed to fill the width of the view. So it ...
- 95
0
votes
1
answer
139
views
Undo\Redo with multi items movement QGraphicScene - pyqt5
I have implemented QUndoStack with QGraphicScene and everything is working like charm with individual QGraphicItem movement/rotation, but when it comes to the multi-items movement, I couldn't find any ...
- 165
0
votes
1
answer
79
views
Scaling-Rotating functionality on QGraphicsPixmapItem
I searched many times over the internet if QGraphicView have functionality for rotating/scaling image and I had no success.
What I want like every diagram program each image/shape has boundary points, ...
- 165
2
votes
1
answer
729
views
PyQt5 QGraphicsView drawing resolution
I'm new to Qt, I am trying to make a paint application using QGraphicsScene and QGraphicsView. The only way to draw i found out is to add circles and lines to QGraphicsScene on mouseMoveEvent. It ...
- 33
0
votes
0
answers
41
views
Why Draw line in QGraphicScene not show but add button worked in pyqt
when i add pushbutton dynamically to the QGraphicScene with a pic its work but when i use QPainter to draw a line or rectangle not show.
code:
import sys
from PyQt5 import QtWidgets, QtCore, QtGui
...
- 21