How to display a Video/QVideoWidget inside a Qtreeview/QTreeWidgetItem

[Aurele]

Hello,

I am trying to display a short video as a thumbnail in a Qtreeview, where each treewidgetItem has a video that is played on mouse enter event,

here is my python code

from PySide2 import QtWidgets, QtCore, QtGui, QtMultimedia, QtMultimediaWidgets
import sys
from PySide2.QtCore import Qt

class EntityView2(QtWidgets.QTreeWidget):
    """
        EntityView Entity View implemented by QtTreeWidget
    """

    def __init__(self, parent=None):
        #self.entities_items = []
        super(EntityView2, self).__init__(parent)
        self.items = []
        self.setWordWrap(True)
        super(EntityView2, self).setHeaderItem( QtWidgets.QTreeWidgetItem(["Entity Name", "Last Version", "Thumbnail", "Notes"]) )
        self.setColumnCount(4)
        self.header().setStretchLastSection(True)
        self.header().resizeSection(0, 150)
        self.header().resizeSection(1, 300)
        self.header().resizeSection(2, 150)
        self.panel_size = QtCore.QSize(120,100)
        self.pattern = None

        tree = QtWidgets.QTreeWidgetItem([None, None , None , None])
        tree.setSizeHint(0,self.panel_size)
        tree.setSizeHint(1,self.panel_size)
        tree.setSizeHint(2,self.panel_size)
        tree.setSizeHint(3,self.panel_size)
        tree.setData(0,4, "nom_entiter")

        super(EntityView2, self).addTopLevelItem(tree)

        open_note_label = QtWidgets.QLabel("open_notes")
        open_note_label.setWordWrap(True)
        name_label = QtWidgets.QLabel("entity.name")
        name_label.setWordWrap(True)
        version_label = QtWidgets.QLabel("version")
        version_label.setWordWrap(True)
        self.setItemWidget(tree, 3 , open_note_label)
        self.setItemWidget(tree, 0 , name_label)
        self.setItemWidget(tree, 1 , version_label)

        video_path = r"K:\02_SAISON_2\03_FABRICATION\ASSETS\Prop\Knife\shading\snap\v006\BDG__Prop__Knife__shading__thumbnail__v006.mov"

        widget = QtWidgets.QWidget()
        player = QtMultimedia.QMediaPlayer()
        playlist = QtMultimedia.QMediaPlaylist(player)
        playlist.addMedia(QtCore.QUrl(video_path))
        videoWidget = QtMultimediaWidgets.QVideoWidget(widget)
        player.setVideoOutput(videoWidget)
        tree.setData(2, Qt.DisplayRole, widget)
        player.play()

app = QtWidgets.QApplication(sys.argv)
Form = EntityView2()
Form.show()
app.exec_()

Feel free to give advice in C++

So i am stuck at the very beginning of the process because on the many methods i tried i can never get the video to display itself where i could get and QImage to get displayed

[SGaist]

Hi and welcome to devnet,

The default delegate does not know how to render widgets even less a QVideoWidget.

Do you need to show the video in the cell itself or would a dedicated player beside the tree view be a possible alternative ?

[Aurele]

Hello,

Thanks for the reply.

I thought i would be complicated to do so inside the the treeItem.

I see only 3 solutions then:

• reimplement a custom delegate, but that would be a bit much for what i want, and i dont even know if its possible
• having a succession of QImage to mimic a video but i think the frame rate would make this hard to do
• and having a separated widget to display the video

I think i'll go for for the separated widget