From 15b4b9701b6a8c1cb3203ca8a59b37fc05e15cf0 Mon Sep 17 00:00:00 2001
From: MikeTheWatchGuy <mike_barnett@hotmail.com>
Date: Fri, 19 Oct 2018 13:57:25 -0400
Subject: [PATCH] Changes submitted by other users... good stuff!

---
 Demo_OpenCV_Webcam.py  | 23 +++---------
 Demo_Touch_Keyboard.py | 84 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 90 insertions(+), 17 deletions(-)
 create mode 100644 Demo_Touch_Keyboard.py

diff --git a/Demo_OpenCV_Webcam.py b/Demo_OpenCV_Webcam.py
index c21eaea0..c6fb89c3 100644
--- a/Demo_OpenCV_Webcam.py
+++ b/Demo_OpenCV_Webcam.py
@@ -4,10 +4,8 @@ if sys.version_info[0] >= 3:
     import PySimpleGUI as sg
 else:
     import PySimpleGUI27 as sg
-import cv2 as cv
-from PIL import Image
+import cv2
 import numpy as np
-import io
 from sys import exit as exit
 
 """
@@ -31,7 +29,7 @@ def main():
     window.Layout(layout).Finalize()
 
     # ---===--- Event LOOP Read and display frames, operate the GUI --- #
-    cap = cv.VideoCapture(0)
+    cap = cv2.VideoCapture(0)
     recording = False
     while True:
         event, values = window.ReadNonBlocking()
@@ -42,10 +40,8 @@ def main():
             recording = True
         elif event == 'Stop':
             recording = False
-            img = Image.new('RGB', (640, 480), (255, 255, 255))
-            bio = io.BytesIO()  # a binary memory resident stream
-            img.save(bio, format='PNG')  # save image as png to it
-            imgbytes = bio.getvalue()
+            img = np.full((480, 640),255)
+            imgbytes=cv2.imencode('.png', img)[1].tobytes() #this is faster, shorter and needs less includes
             window.FindElement('image').Update(data=imgbytes)
         elif event == 'About':
             sg.PopupNoWait('Made with PySimpleGUI',
@@ -56,14 +52,7 @@ def main():
                            keep_on_top=True)
         if recording:
             ret, frame = cap.read()
-
-            gray = cv.cvtColor(frame, cv.COLOR_BGR2GRAY)
-
-            # let img be the PIL image
-            img = Image.fromarray(gray)  # create PIL image from frame
-            bio = io.BytesIO()  # a binary memory resident stream
-            img.save(bio, format= 'PNG')  # save image as png to it
-            imgbytes = bio.getvalue()  # this can be used by OpenCV hopefully
+            imgbytes=cv2.imencode('.png', frame)[1].tobytes() #ditto
             window.FindElement('image').Update(data=imgbytes)
 
-main()
\ No newline at end of file
+main()
diff --git a/Demo_Touch_Keyboard.py b/Demo_Touch_Keyboard.py
new file mode 100644
index 00000000..ac8eebed
--- /dev/null
+++ b/Demo_Touch_Keyboard.py
@@ -0,0 +1,84 @@
+import PySimpleGUI as sg
+
+class keyboard():
+  def __init__(self,font=('Arial',16)):
+    self.font=font
+    numberRow='1234567890'
+    topRow='QWERTYUIOP'
+    midRow='ASDFGHJKL'
+    bottomRow='ZXCVBNM'
+    keyboard_layout=[[sg.ReadButton(c, key=c, pad=(0, 0), size=(4, 2), font=self.font) for c in numberRow]+[sg.ReadButton('⌫', key='back', pad=(0, 0), size=(4, 2), font=self.font),sg.ReadButton('Esc', key='close', pad=(0, 0), size=(4, 2), font=self.font)],
+                     [sg.T(' '*4)]+[sg.ReadButton(c, key=c, pad=(0, 0), size=(4, 2), font=self.font) for c in topRow],
+                     [sg.T(' '*11)]+[sg.ReadButton(c, key=c, pad=(0, 0), size=(4, 2), font=self.font) for c in midRow],
+                     [sg.T(' '*18)]+[sg.ReadButton(c, key=c, pad=(0, 0), size=(4, 2), font=self.font) for c in bottomRow]]
+
+    self.window=sg.Window('keyboard', grab_anywhere=True, keep_on_top=True, no_titlebar=True).Layout(
+      keyboard_layout).Finalize()
+    self.hide()
+
+  def _keyboardhandler(self):
+    if self.event is not None:
+      if self.event=='close':
+        self.hide()
+      elif len(self.event)==1:
+        self.focus.Update(self.focus.Get()+self.event)
+      elif self.event=='back':
+        Text=self.focus.Get()
+        if len(Text)>0:
+          Text=Text[:-1]
+          self.focus.Update(Text)
+
+  def hide(self):
+    self.visible=False
+    self.window.Disappear()
+
+  def show(self):
+    self.visible=True
+    self.window.Reappear()
+
+  def togglevis(self):
+    if self.visible:
+      self.hide()
+    else:
+      self.show()
+
+  def update(self,focus):
+    self.event,_=self.window.ReadNonBlocking()
+    self.focus=focus
+    self._keyboardhandler()
+
+  def close(self):
+    self.window.CloseNonBlocking()
+
+
+class GUI():
+  def __init__(self):
+    layout = [[sg.Text('Enter Text')],
+          [sg.Input(size=(17, 1), key='input1',)],
+          [sg.InputText(size=(17, 1), key='input2')],
+          [sg.ReadButton('on-screen keyboard',key='keyboard')],
+          [sg.ReadButton('close',key='close')]]
+
+    self.mainWindow = sg.Window('On-screen test', grab_anywhere=False,no_titlebar=True).Layout(layout)
+    self.keyboard=keyboard()
+    self.focus=None
+
+
+  def run(self):
+    while True:
+      for row in self.mainWindow.Rows:
+        for element in row:
+          if element.Type=='input' and element.TKEntry is not None and element.TKEntry is element.TKEntry.focus_get():
+            self.focus=element
+      event, values=self.mainWindow.ReadNonBlocking()
+      self.keyboard.update(self.focus)
+      if event=='keyboard':
+        self.keyboard.togglevis()
+      elif event=='close':
+        break
+    self.keyboard.close()
+    self.mainWindow.CloseNonBlocking()
+
+if __name__ == '__main__':
+  app=GUI()
+  app.run()