add desktop_monitor source code

projects/app_desktop_monitor/.gitignore

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+data
+__pycache__
+dist

projects/app_desktop_monitor/README.md

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+Monitor on desktop
+=====
+
+
+## Description
+
+Monitoring PC's CPU/GPU/Temperature and more info.
+And monitoring other info like your Bilibili.com account's follower number, or whether etc.
+
+

projects/app_desktop_monitor/app.yaml

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+id: desktop_monitor
+name: Desktop Monitor
+name[zh]: 桌面监视器
+version: 1.0.1
+icon: assets/desktop_monitor.json
+author: neucrack@Sipeed Ltd
+desc: Monitoring PC info, or other info from internet or local.
+desc[zh]: 监控电脑性能参数，或者其它来自互联网或者本地的数据。
+exclude:
+  - data
+  - dist
+  - .gitignore
+

projects/app_desktop_monitor/assets/chars.txt

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+`1234567890-=~!@#$%^&*()_+qwertyuiop[]\asdfghjkl;'zxcvbnm,./QWERTYUIOP{}|ASDFGHJKL:"ZXCVBNM<>?
+ ℃！。，《》【】、
+服务器扫描二维码以连接确保设备和电脑在同一个局域网内在电脑执行启动服务器
+

projects/app_desktop_monitor/assets/extract_font_chars.sh

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+#!/bin/bash
+
+echo "Extracting font characters from $1"
+
+fonttools subset --text-file=chars.txt --output-file=my_font.ttf $1
+
+

projects/app_desktop_monitor/desktop_monitor/i18n.py

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+from maix import i18n
+
+lang_dict = {
+    "zh": {
+        "Server": "服务器",
+        "scan_qr_title": "扫描二维码以连接",
+        "scan_qr_tip1": "1. 确保设备和电脑在同一个局域网内",
+        "scan_qr_tip2": "2. 在电脑执行'pip install pc-monitor-server'",
+        "scan_qr_tip3": "3. 在电脑执行'pc-monitor-server'启动服务器",
+    },
+    "en": {
+        "scan_qr_title": "Scan QR code to connect",
+        "scan_qr_tip1": "1. Make sure device and PC in the same LAN",
+        "scan_qr_tip2": "2. Execute 'pip install pc-monitor-server' on PC",
+        "scan_qr_tip3": "3. Execute 'pc-monitor-server' on PC",
+    }
+}
+
+trans = i18n.Trans(lang_dict)
+tr = trans.tr
+

projects/app_desktop_monitor/desktop_monitor/scanner.py

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+from maix import camera, image
+
+class Scanner:
+    def __init__(self, w, h):
+        self.cam = camera.Camera(w, h)
+
+    def scan(self):
+        img = self.cam.read()
+        if img is None:
+            return None, None
+        # scan qrcode
+        qrs = img.find_qrcodes()
+        for qr in qrs:
+            addr = qr.payload()
+            if addr.startswith("http"):
+                return addr, img
+            corners = qr.corners()
+            for i in range(4):
+                img.draw_line(corners[i][0], corners[i][1], corners[(i + 1) % 4][0], corners[(i + 1) % 4][1], image.COLOR_RED)
+        return None, img
+        # return "http://127.0.0.1:9999", img
+

projects/app_desktop_monitor/desktop_monitor/util.py

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+import requests
+
+
+def get_pc_info(site_addr):
+    url = site_addr + '/'
+    try:
+        res = requests.post(url)
+        if res.status_code != 200:
+            print("-- [Error] status code:", res.status_code)
+            return None
+        info = res.json()
+        return info
+    except Exception as e:
+        print("-- [Error]", e)
+        return None