ChrisMarxDev’s gists

ChrisMarxDev / line_text_painter.dart

Created July 22, 2024 07:15

Paint a white rectangle exactly behind the text

	class LineWidgetText extends ConsumerStatefulWidget {
	const LineWidgetText({
	required this.element,
	super.key,
	});

	final LineElement element;

	@override
	ConsumerState<LineWidgetText> createState() => _LineWidgetTextState();

ChrisMarxDev / device_kind_pan_gesture_detector.dart

Last active July 19, 2024 17:51

Pan Gesture Recogniser that differentiates between device types

	import 'package:flutter/gestures.dart';
	import 'package:flutter/material.dart';

	// pan gesture detector that only responds to specific device kinds
	// e.g. only responds to mouse drags but ignores trackpad drags
	class DeviceKindPanGestureDetector extends StatefulWidget {
	const DeviceKindPanGestureDetector({
	required this.child,
	required this.onStart,
	required this.onUpdate,

ChrisMarxDev / Code.gs

Created March 6, 2024 09:09

Apps script gmail to crm integration

	function loadAddOn(event) {
	var accessToken = event.gmail.accessToken;
	var messageId = event.gmail.messageId;
	GmailApp.setCurrentMessageAccessToken(accessToken);
	var mailMessage = GmailApp.getMessageById(messageId);
	var from = mailMessage.getFrom()
	var mail = from.split("<")[1].split(">")[0];
	var name = from.split("<")[0];

	var sendDataButton = CardService.newTextButton()

ChrisMarxDev / interactable_card.dart

Created July 22, 2023 08:41

Bouncy Card Widget

	import 'package:flutter/material.dart';

	// I will have to clean this a little bit, I pasted my context_extension below so it works out of the box
	class InteractableCard extends StatefulWidget {
	const InteractableCard({
	required this.child,
	this.highlightColor,
	super.key,
	this.onTap,
	this.unselectedColor,

ChrisMarxDev / analytics.dart

Created June 8, 2022 13:01

Firebase analytics

	import 'dart:async';
	import 'dart:convert';

	import 'package:firebase_analytics/firebase_analytics.dart';

	import 'logging.dart';

	void logEvent(
	String name, [
	Map<String, Object>? params,

ChrisMarxDev / pre-push

Last active July 22, 2021 08:21

Flutter pre-push git hook. Does not push if analyse or test fail.

	#!/bin/sh
	# To use add to your projects `.git/hooks/`
	# Should be named `pre-push`
	# Don't forget to make it executable with `chmod +x`

	# run Flutter analyze + test
	flutter analyze

	if [ $? -ne 0 ]; then
	exit 1

ChrisMarxDev / meta_coin.dart

Last active June 17, 2020 13:56

Smart contract related functions to call MetaCoin example

	Future<String> sendCoind(String targetAddressHex, int amount) async {
	EthereumAddress address = EthereumAddress.fromHex(targetAddressHex);
	// uint in smart contract means BigInt for us
	var bigAmount = BigInt.from(amount);
	// sendCoin transaction
	var response = await submit("sendCoin", [address, bigAmount]);
	// hash of the transaction
	return response;
	}

ChrisMarxDev / query_submit.dart

Last active June 17, 2020 13:54

Query data & submit a transaction with web3dart

	Future<String> submit(String functionName, List<dynamic> args) async {
	EthPrivateKey credentials = EthPrivateKey.fromHex(
	"3d272d3193203d7a4458ea2a38ace936075c776512fc27093597ca2c790602a9");

	DeployedContract contract = await loadContract();

	final ethFunction = contract.function(functionName);

	var result = await ethClient.sendTransaction(
	credentials,

ChrisMarxDev / load_contract.dart

Last active June 19, 2020 08:20

Function to load up a web3dart contract

	// you will need the following import
	// import 'package:flutter/services.dart';


	Future<DeployedContract> loadContract() async {
	String abiCode = await rootBundle.loadString("assets/abi.json");
	String contractAddress = "0x8A30f78133176ed5E6CcB0AE8429AEEBf4c82Ffc";

	final contract = DeployedContract(ContractAbi.fromJson(abiCode, "MetaCoin"),
	EthereumAddress.fromHex(contractAddress));

ChrisMarxDev / init_clients.dart

Last active June 19, 2020 08:19

Initialize a web3client for Flutter

	import 'package:http/http.dart';
	import 'package:web3dart/web3dart.dart';

	class _MyHomePageState extends State<MyHomePage> {
	Client httpClient;
	Web3Client ethClient;

	@override
	void initState() {
	super.initState();

Chris ChrisMarxDev