クエン酸 kuanyui

osc cheatsheet

configuration

.oscrc

TBD

aliases

NOTE

You may not need local branches for all pull requests in a repo.

To fetch only the ref of a single pull request that you need, use this:

git fetch origin pull/7324/head:pr-7324
git checkout pr-7324
# ...

在 Ubuntu 16.04 為 Raspbian Jessie 交叉編譯 Qt 5.6 桌面版

筆記

Qt 在 Raspberry Pi 上可以跑兩種版本：

桌面版。你平常在 Linux 發行版裡看到的會是這個，包含 Raspbian 在內。通常基於 X11，就是個普通的 GUI 框架。
嵌入版。這個版本不需要鐘面系統，通常是直接走 framebuffer 直接把東西畫到螢幕上，適合一些嵌入式設備的應用。

這個教學會編譯桌面版，因為我對這個版本比較熟。我上次試的時候 OpenGL 在 embedded 版還有些問題，不過 Qt 在那之後有很多更新，狀況應該會好很多。Qt 官方 wiki 也有個相關的教學：

Raspberry Pi Zero OTG Mode

Simple guide for setting up OTG modes on the Raspberry Pi Zero - By Andrew Mulholland (gbaman).

The Raspberry Pi Zero (and model A and A+) support USB On The Go, given the processor is connected directly to the USB port, unlike on the B, B+ or Pi 2 B, which goes via a USB hub.
Because of this, if setup to, the Pi can act as a USB slave instead, providing virtual serial (a terminal), virtual ethernet, virtual mass storage device (pendrive) or even other virtual devices like HID, MIDI, or act as a virtual webcam!
It is important to note that, although the model A and A+ can support being a USB slave, they are missing the ID pin (is tied to ground internally) so are unable to dynamically switch between USB master/slave mode. As such, they default to USB master mode. There is no easy way to change this right now.
It is also important to note, that a USB to UART serial adapter is not needed for any of these guides, as may be documented elsewhere across the int

此僅為備份，因為原文在Facebook中。作者：顏華容 https://www.facebook.com/artemis.yen/posts/10207549044542275

一點關於練琴效率的小心得如果大家有興趣的話，在連假的這幾天可以實驗

實驗材料：沒有彈過的曲子（有沒有聽過無妨，因為聽過你也不見得會彈，哈哈。）

	/*
	* PixiJS Background Cover/Contain Script
	* Returns object
	* . {
	* container: PixiJS Container
	* . doResize: Resize callback
	* }
	* ARGS:
	* bgSize: Object with x and y representing the width and height of background. Example: {x:1280,y:720}
	* inputSprite: Pixi Sprite containing a loaded image or other asset. Make sure you preload assets into this sprite.

	#!/usr/bin/env python
	from SimpleHTTPServer import SimpleHTTPRequestHandler, test

	class CustomRequestHandler(SimpleHTTPRequestHandler):
	def end_headers(self):
	self.add_content_disposition()
	SimpleHTTPRequestHandler.end_headers(self)

	def add_content_disposition(self):
	self.send_header("Content-Disposition", 'filename="content_disposition.py"')

	#include <QApplication>
	#include <QStringList>
	#include <QListWidget>
	#include <QRadioButton>

	int main(int argc, char *argv[])
	{
	QApplication app(argc, argv);

	QListWidget *listWidget = new QListWidget();