QML Console Test

README.md

QML Console Test

console.py

import sys
import contextlib
from PyQt5 import QtCore, QtGui, QtQuick


@contextlib.contextmanager
def application():
    app = QtGui.QGuiApplication(sys.argv)
    yield
    app.exec_()


class Model(QtCore.QAbstractListModel):
    def __init__(self, items, parent=None):
        super(Model, self).__init__(parent)
        self._items = items

    def rowCount(self, parent=None):
        return len(self._items)

    def data(self, index, role=QtCore.QModelIndex()):
        if role == QtCore.Qt.UserRole + 0:
            return self._items[index.row()]

    def roleNames(self):
        return {
            QtCore.Qt.UserRole + 0: "line",
        }


if __name__ == '__main__':
    import json

    with open("data.json") as f:
        data = json.load(f)

    qml = QtCore.QUrl.fromLocalFile("console.qml")

    with application():
        window = QtQuick.QQuickView()
        window.setTitle("Console")
        window.setResizeMode(window.SizeRootObjectToView)

        engine = window.engine()
        context = engine.rootContext()

        model = Model(data * 2000)  # Loads of items
        context.setContextProperty("myModel", model)

        window.setSource(qml)
        window.show()

console.qml

import QtQuick 2.3

Rectangle {
    width: 500
    height: 300
    color: "steelblue"

    ListView {
        id: listview
        anchors.fill: parent
        anchors.margins: 5

        model: myModel

        delegate: Text {
            text: line
            width: ListView.view.width
        }
    }

    Scrollbar {
        flickable: listview
        anchors.top: parent.top
        anchors.bottom: parent.bottom
        anchors.right: parent.right
        width: 25
    }
}

data.json

[
    "Bye bye!",
    "rostikL Sep 02 15:36",
    "Hello Marcus!",
    "I have a quick question: Would it be ok for you if we postpone the start to the next Monday?",
    "I have a deadline till Friday for a few documents and I don't think I will make it.",
    "Would it be ok for you? Let me know. If not, i will try to move a few things around.",
    "mottosso Sep 02 15:37",
    "Hey Rostik",
    "Oh, okay",
    "Yes, sure, that's ok",
    "rostikL Sep 02 15:37",
    "Thanks!",
    "mottosso Sep 02 15:38",
    "It would be best if we could decide on 2 days up-front, so I can better manage my schedule",
    "rostikL Sep 02 15:38",
    "Yehh, sorry.",
    "mottosso Sep 02 15:38",
    "These things are probably something good for a contract of sorts",
    "No worries, we'll work it out as we go",
    "rostikL Sep 02 15:38",
    "If you have already planned everything out, We can start tomorrow",
    "but I won't be able to stay the whole day",
    "if that's ok?",
    "mottosso Sep 02 15:39",
    "No that's ok, don't worry, do what you got to do",
    "rostikL Sep 02 15:39",
    "This way we can keep Thursday and Friday, so your schedule stays the same",
    "mottosso Sep 02 15:40",
    "I wouldn't want you to stress",
    "rostikL Sep 02 15:40",
    "That would be ok.",
    "mottosso Sep 02 15:40",
    "Ok, how would you like to proceed?",
    "Thursday or Monday?",
    "rostikL Sep 02 15:41",
    "Monday to be honest. And from then on every Monday/Tuesday?",
    "so, your schedule is always the same",
    "mottosso Sep 02 15:41",
    "Ok, let's do that",
    "I've got lots of things to fill the comings days with, this works well for me too",
    "rostikL Sep 02 15:42",
    "perfekt, thanks. Sorry for the inconvinience",
    "mottosso Sep 02 15:42",
    "No problem, so Monday/Tuesday? Or Monday/Friday? Next week that is",
    "rostikL Sep 02 15:42",
    "What days are better for you?",
    "We can do Monday/Thursday?",
    "mottosso Sep 02 15:43",
    "I think consecutive days would be better concentration-wise, what do you think?",
    "rostikL Sep 02 15:43",
    "so, during the week I can work on things and ask you on Thursday :-)",
    "mottosso Sep 02 15:43",
    "Ok, let's do that :)",
    "rostikL Sep 02 15:43",
    "ok, great.",
    "mottosso Sep 02 15:43",
    "Done",
    "rostikL Sep 02 15:44",
    "Thanks!",
    "Till next monday then! Have a nice day",
    "mottosso Sep 02 15:44",
    "No problem",
    "You too, talk soon!",
    "rostikL Sep 02 15:44",
    "bye!",
    "mottosso Sep 07 09:00",
    "Good morning @rostikL!",
    "rostikL Sep 07 09:00",
    "Good morning, Marcus!",
    "Was about to write you",
    "mottosso Sep 07 09:00",
    "How's things?",
    "rostikL Sep 07 09:01",
    "but your were faster",
    "mottosso Sep 07 09:01",
    "Hehe",
    "Was staring at the clock!",
    "rostikL Sep 07 09:01",
    "Hehe, me too :-)",
    "How are you?",
    "mottosso Sep 07 09:01",
    "All good",
    "Had a nice weekend of C++",
    "rostikL Sep 07 09:02",
    "So do you hate the world now? Like most people feel after c++ :-)",
    "mottosso Sep 07 09:02",
    "Hah, no not at all",
    "I like it a lot",
    "rostikL Sep 07 09:02",
    "then you are an exception",
    "mottosso Sep 07 09:03",
    "Hehe, I get the feeling most of the hate comes from pre-c++11",
    "rostikL Sep 07 09:03",
    "possible",
    "mottosso Sep 07 09:03",
    "How was your weekend?",
    "rostikL Sep 07 09:04",
    "Ok. Had to work on a few documents",
    "But now it's done",
    "so i am happy",
    "mottosso Sep 07 09:04",
    "Documents",
    "Sounds boring",
    "Paperwork",
    "rostikL Sep 07 09:04",
    "Yes.",
    "mottosso Sep 07 09:05",
    "The API of humans",
    "rostikL Sep 07 09:05",
    "hehe",
    "Had to be done",
    "mottosso Sep 07 09:05",
    "Good",
    "Should we get right to it?",
    "Oh actually there is one thing",
    "rostikL Sep 07 09:06",
    "yes",
    "?",
    "mottosso Sep 07 09:06",
    "I might be heading out for a project soon",
    "This is the part where 2 days a week serves it's purpose, it means I might be busy during weekdays",
    "rostikL Sep 07 09:07",
    "Ahh, so you can still work with us?",
    "mottosso Sep 07 09:08",
    "If it's allright with you, I could do DICE on Saturdays and Sundays",
    "Of course",
    "rostikL Sep 07 09:08",
    "For me these are workdays too, so that wouldn't be a problem",
    "mottosso Sep 07 09:08",
    "Just that it might be difficult on weekdays",
    "Haha",
    "When do you take a break?",
    "rostikL Sep 07 09:08",
    "Next year I hope :smile:",
    "mottosso Sep 07 09:08",
    "Hehe, ok, perfect",
    "Was dreading to tell you",
    "But it's a really great project",
    "rostikL Sep 07 09:09",
    "No, some sundays I have to pause",
    "mottosso Sep 07 09:09",
    "Difficult to pass up",
    "rostikL Sep 07 09:09",
    "But would it be just for a month?",
    "or longer?",
    "mottosso Sep 07 09:09",
    "At least a month, at most three",
    "Expecting to hear from them tomorrow morning",
    "rostikL Sep 07 09:10",
    "and you will work from Monday to Friday?",
    "mottosso Sep 07 09:10",
    "Exactly",
    "rostikL Sep 07 09:11",
    "Ok, I have to discuss it with my collegues",
    "mottosso Sep 07 09:11",
    "Please do",
    "rostikL Sep 07 09:11",
    "but I think if we plan everything out, it could work",
    "mottosso Sep 07 09:11",
    "Me too",
    "rostikL Sep 07 09:11",
    "But when do you take a break?",
    "mottosso Sep 07 09:12",
    "Next year I hope",
    "rostikL Sep 07 09:12",
    "If you work from Monday till Sunday?",
    "mottosso Sep 07 09:12",
    ";)",
    "rostikL Sep 07 09:12",
    "haha",
    "mottosso Sep 07 09:12",
    "Let's kickstart today?",
    "rostikL Sep 07 09:12",
    "ok",
    "mottosso Sep 07 09:13",
    "Were we splitting up the repo in GitHub?",
    "rostikL Sep 07 09:13",
    "should we do a hangout (now/later?) or do your prefer writing?",
    "mottosso Sep 07 09:13",
    "I figured we'd write",
    "We could talk if you'd like",
    "rostikL Sep 07 09:13",
    "I think it could be faster",
    "mottosso Sep 07 09:14",
    "Let's do it",
    "rostikL Sep 07 09:14",
    "ok",
    "I'll call you",
    "mottosso Sep 09 09:09",
    "Hey @rostikL, sorry for not getting back sooner, I'm still awaiting to hear back about the project.",
    "I'll get back to you as soon as I know anything, but it's safe to say I'll be here tomorrow",
    "rostikL Sep 09 09:12",
    "Hi Marcus!",
    "No problem. Thanks for the info.",
    "rostikL 14:13",
    "Quick question: Should we work tomorrow or move it to another day? What is best for you?",
    "mottosso 14:14",
    "Tomorrow works well for me",
    "rostikL 14:14",
    "Ok, great. Looking forward to it.",
    "mottosso 14:14",
    "I won't be heading anywhere until Monday, earliest",
    "Me too",
    "rostikL 14:15",
    "I have already separated the repos and created submodules, looks really nice now",
    "mottosso 14:15",
    "Ah, that's great :smile:",
    "mottosso 19:02",
    "Ok, so I'm heading down on Monday, staying until 13th October, possibly but unlikely longer",
    "Just wanted to let you know!",
    "Working on finding a place to sleep and work with you on the weekends now, will let you know how that turns out.",
    "rostikL 19:07",
    "Ok. Thanks. Only until 13th October is not much anyway, only 4 weeks :smile:",
    "Will be over before you know it",
    "Talk to you tomorrow!",
    "rostikL 08:57",
    "Hi, Marcus. I'll be a little late at my PC, in about 30min.",
    "mottosso 08:57",
    "Hi Rostik, no problem, see you in a bit!",
    "rostikL 09:30",
    "Ok, i am here. Hi!",
    "mottosso 09:30",
    "Hey!",
    "30 mins on the dot",
    "I like punctuality :smile:",
    "I'm working on a console example"
]

Scrollbar.qml

import QtQuick 2.3


Item {
    property Flickable flickable

    visible: flickable.visibleArea.heightRatio < 1.0

    MouseArea {
        id: handle

        Rectangle {
            anchors.fill: parent
            color: "yellow"
        }

        anchors.left: parent.left
        anchors.right: parent.right

        width: 20
        height: Math.max(30, flickable.visibleArea.heightRatio * flickable.height)

        y: !drag.active && !isNaN(flickable.visibleArea.heightRatio) ? (drag.maximumY * flickable.contentY) / (flickable.contentHeight * (1 - flickable.visibleArea.heightRatio)) : 0

        drag.target: handle
        drag.axis: Drag.YAxis
        drag.minimumY: 0
        drag.maximumY: flickable.height - handle.height
    }

    Binding {
        target: flickable
        property: "contentY"
        value: ((flickable.contentHeight * (1 - flickable.visibleArea.heightRatio)) * handle.y) / handle.drag.maximumY
        when: !flickable.moving && handle.drag.active && flickable !== undefined
    }
}