アプリ関連ニュース
Streamlining Electron.js App with Tray Icons
In the realm of desktop application development, Electron.js stands out as a robust framework for building cross-platform apps using web technologies. Among its many features, integrating tray icons can significantly enhance user experience by providing quick access to essential functionalities. Today, let’s explore how we can implement tray icons in our Electron.js application, from setup to implementation.
Setting Up A Electron.js Project
First things first, let’s set up a basic Electron.js project:
1. Initialize a new Node.js project
mkdir project_name && cd project_name
npm init -y
2. Install Electron.js
npm install electron
3. Create project files
project_name/
├── icon.png
├── index.html
├── index.js
├── node_modules
├── package.json
└── package-lock.json
– `index.html` for the application’s UI.
– `index.js` for Electron main process code.
– An icon file (`icon.png`) for the tray icon.
– add `start` command in package.json like this.
{
"name": "project_name",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "electron ."
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"electron": "^29.0.1"
}
}
Implementing Tray Icon Functionality
Next, let’s dive into implementing the tray icon functionality in `index.js` file:
const { app, Tray, BrowserWindow } = require('electron');
const path = require('path');
let tray = null;
let mainWindow = null;
app.on('ready', () => {
tray = new Tray(path.join(__dirname, 'icon.png'));
mainWindow = new BrowserWindow({
width: 800,
height: 600,
show: false,
webPreferences: {
nodeIntegration: true
}
});
mainWindow.loadFile('index.html');
tray.on('click', () => {
mainWindow.isVisible() ? mainWindow.hide() : mainWindow.show();
});
});
Running Your Electron.js Application
To run Electron.js application, execute the following command in the terminal:
npm start
This command will start Electron application, and we should see the tray icon appear in our system tray. Clicking on the tray icon should toggle the visibility of the application window.
Conclusion
Integrating tray icons into Electron.js application is a straightforward process that can greatly improve user experience. Whether it’s for displaying notifications, providing quick access to features, or simply adding a professional touch to our app, tray icons are a valuable addition to any desktop application.
With Electron.js, implementing tray icons becomes seamless, allowing us to focus on crafting an exceptional user experience for our desktop application. So why not enhance our Electron.js app with a sleek tray icon for innovative ideas?
Hope you enjoy that.
By Asahi
waithaw at 2024年02月27日 10:00:00
[Unity]球体の内側に衝突判定Colliderを付与する
360球体画像の内側からアイトラッキングで視線情報を追従してどの部分を見ていたかログを取得する処理をつくっていましたが、ビルド後に視線のRayと360球体画像の内側の衝突判定がとれなくなりログに出力できないという問題が発生しました。
今回はこの問題の解決方法をシェアしたいと思います。
nishida at 2024年02月22日 10:00:00
MetaQuestアプリの作成を簡単にするBuilding Blocks
tanaka at 2024年02月21日 10:00:00
- 2024年2月19日
- AI
Sora from OpenAI
OpenAI has introduced Sora, an innovative generative AI model designed to transform text into video content. According to OpenAI, Sora can produce 1080p movie-like scenes featuring multiple characters, various types of motion, and detailed background elements, based on either brief or detailed text descriptions or still images. Additionally, Sora has the capability to “extend” existing video clips by filling in missing details.
The model’s proficiency lies in its deep understanding of language, enabling it to interpret prompts accurately and generate dynamic characters that convey vivid emotions. OpenAI emphasizes Sora’s comprehension not only of the user’s requests but also of how those elements manifest in the physical world.
Despite the lofty claims made by OpenAI, the showcased samples from Sora demonstrate impressive capabilities compared to other text-to-video technologies. Sora can produce videos up to a minute long in various styles, such as photorealistic, animated, or black and white, maintaining coherence and avoiding common pitfalls associated with AI-generated content.
However, Sora is not without flaws, as acknowledged by OpenAI. The model may struggle with accurately simulating complex scenes’ physics, understanding cause and effect relationships, or maintaining spatial and temporal consistency. OpenAI positions Sora as a research preview, refraining from making it generally available due to concerns about potential misuse.
OpenAI is actively collaborating with experts to identify and address potential vulnerabilities in the model and is developing tools to detect videos generated by Sora. Should OpenAI decide to make Sora publicly accessible, it pledges to include provenance metadata in generated outputs to mitigate misuse risks.
Yuuma
yuuma at 2024年02月19日 10:00:00
Adding Watermarks to PDFs in Python with simple and efficient approach
In today’s digital age, the need to protect and personalize PDF documents is more crucial than ever. Whether you want to brand your documents or add a confidential watermark, Python provides a powerful and straightforward solution. In this blog, we’ll explore a simple Python script that utilizes the PyPDF2 and ReportLab libraries to effortlessly add watermarks to multiple PDF files.
Setting Up the Environment
Before diving into the script, make sure you have the required libraries installed. You can do this by running the following commands.
pip install PyPDF2
pip install reportlab
Understanding the Script
The entire script can be seen at the end. Let’s break down the key components of the script.
1. create_watermark() Function
– This function uses the ReportLab library to generate a PDF containing a customizable watermark.
– You can specify the watermark text, color, transparency, font, and rotation angle.
2. add_watermark() Function
– The core function that adds the watermark to each page of the input PDF.
– It uses PyPDF2 to merge the original PDF with the watermark PDF on each page.
3. delete_watermark_file() Function
– A utility function to delete the temporary watermark PDF file after it has been merged with the input files.
4. Command Line Arguments
– The script accepts two command line arguments:
– `–path`: The path to the directory containing the PDF files to watermark.
– `–watermark_text`: The text to be used as the watermark.
Here is the entire script.
import PyPDF2
import argparse
from reportlab.pdfgen import canvas
from reportlab.lib.units import inch
from reportlab.lib import colors
import os
def create_watermark(watermark_text, output_pdf):
pdf = canvas.Canvas(output_pdf)
pdf.translate(inch, inch) # move the current origin point(0,0) of the canvas by the current given horizontal and vertical distances
pdf.setFillColor(colors.red, alpha=0.3) # set the font color with alpha value to adjust the transparency of watermark text
pdf.setFont("Helvetica", 50) # set font and font size
pdf.rotate(45) # rotate the canvas by 45 degrees
pdf.drawCentredString(400, 100, watermark_text) # center the watermark text
pdf.save()
def add_watermark(input_pdf, output_directory, watermark_pdf):
base_filename = os.path.splitext(os.path.basename(input_pdf))[0]
output_pdf = os.path.join(output_directory, f'{base_filename}.pdf')
with open(input_pdf, 'rb') as file:
pdf_reader = PyPDF2.PdfReader(file)
pdf_writer = PyPDF2.PdfWriter()
for page_num in range(len(pdf_reader.pages)):
page = pdf_reader.pages[page_num]
watermark_reader = PyPDF2.PdfReader(watermark_pdf)
watermark_page = watermark_reader.pages[0]
page.merge_page(watermark_page)
pdf_writer.add_page(page)
with open(output_pdf, 'wb') as output_file:
pdf_writer.write(output_file)
def delete_watermark_file(watermark_pdf):
if os.path.exists(watermark_pdf):
os.remove(watermark_pdf)
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument("--path", required=True, type=str, help="Path of the directory of file lists")
parser.add_argument("--watermark_text", required=True, type=str, help="Text to be watermark")
args = parser.parse_args()
path = args.path
watermark_text = args.watermark_text
print('Processing.....')
file_list = [file_name for file_name in os.listdir(path) if os.path.isfile(os.path.join(path, file_name))]
output_directory = os.path.join(path, 'output_directory')
if not os.path.exists(output_directory):
os.makedirs(output_directory)
watermark_pdf_file = os.path.join(path, 'watermark.pdf')
create_watermark(watermark_text, watermark_pdf_file)
for file_name in file_list:
if not file_name == 'watermark.pdf':
input_pdf_file = os.path.join(path, file_name)
add_watermark(input_pdf_file, output_directory, watermark_pdf_file)
delete_watermark_file(watermark_pdf_file)
print('Done!')
Running the Script
To run the script, execute the following command.
python script_name.py --path /path/to/pdf/files --watermark_text "Your Watermark Text"
The script will process each PDF file in the specified directory, add the watermark, and save the watermarked files in a newly created ‘output_directory.’
Conclusion
With this Python script, you can easily add watermarks to your PDF documents, making them visually distinctive and secure. Whether you’re protecting sensitive information or branding your documents, this solution provides a quick and efficient way to enhance your PDF files. I would recommend to look into the used libraries in details and feel free to customize the script further to suit your specific requirements, such as adjusting colors, fonts, or rotation angles for the watermark.
Ref: https://pypdf2.readthedocs.io/en/3.0.0/index.html
Ref: https://docs.reportlab.com
Asahi
waithaw at 2024年02月06日 10:00:00