More keyboard friendly metar query window.

joanpc · Mar 28, 2015 · a91283d · a91283d
1 parent b184c63
commit a91283d
Showing 1 changed file with 51 additions and 8 deletions.
diff --git a/PI_noaaWeather.py b/PI_noaaWeather.py
@@ -1002,31 +1002,74 @@ def createMetarWindow(self):
         XPSetWidgetProperty(self.metarQueryOutput, xpProperty_Enabled, 1)
         XPSetWidgetProperty(self.metarQueryOutput, xpProperty_TextFieldType, xpTextTranslucent)
 
+        # Register our widget handler
+        self.metarQueryInputHandlerCB = self.metarQueryInputHandler
+        XPAddWidgetCallback(self, self.metarQueryInput, self.metarQueryInputHandlerCB)
+
         # Register our widget handler
         self.metarWindowHandlerCB = self.metarWindowHandler
         XPAddWidgetCallback(self, self.metarWindowWidget, self.metarWindowHandlerCB)
 
 
         XPSetKeyboardFocus(self.metarQueryInput)
 
+    def metarQueryInputHandler(self, inMessage, inWidget, inParam1, inParam2):
+        ''' Override texfield keyboard input to be more friendly'''
+        if inMessage == xpMsg_KeyPress:
+            key, flags, vkey = PI_GetKeyState(inParam1)
+            if flags == 8:
+                buff = []
+                cursor = XPGetWidgetProperty(self.metarQueryInput, xpProperty_EditFieldSelStart, None)
+                XPGetWidgetDescriptor(self.metarQueryInput, buff, 256)
+                text = buff[0]
+                if key in (8, 127):
+                    #pass
+                    XPSetWidgetDescriptor(self.metarQueryInput, text[:-1])
+                    cursor -= 1
+                elif key == 13:
+                    self.metarQuery()
+                elif key == 27:
+                    #ESC
+                    XPLoseKeyboardFocus(self.metarQueryInput)
+                elif 65 <= key <= 90 or 97 <= key <= 122 and len(text) < 4:
+                    text += chr(key).upper()
+                    XPSetWidgetDescriptor(self.metarQueryInput, text)
+                    cursor += 1
+
+                ltext = len(text)
+                if cursor < 0: cursor = 0
+                if cursor > ltext: cursor = ltext
+
+                XPSetWidgetProperty(self.metarQueryInput, xpProperty_EditFieldSelStart, cursor)
+                XPSetWidgetProperty(self.metarQueryInput, xpProperty_EditFieldSelEnd, cursor)  
+
+                return 1
+        elif inMessage in (xpMsg_MouseDrag, xpMsg_MouseDown, xpMsg_MouseUp):
+            XPSetKeyboardFocus(self.metarQueryInput)
+            return 1
+        return 0
+
     def metarWindowHandler(self, inMessage, inWidget, inParam1, inParam2):
         if inMessage == xpMessage_CloseButtonPushed:
             if self.metarWindow:
                 XPHideWidget(self.metarWindowWidget)
                 return 1
         if inMessage == xpMsg_PushButtonPressed:
             if (inParam1 == self.metarQueryButton):
-                buff = []
-                XPGetWidgetDescriptor(self.metarQueryInput, buff, 256)
-                query = buff[0].strip()
-                if len(query) == 4:
-                    self.weather.weatherClientSend('?' + query)
-                    XPSetWidgetDescriptor(self.metarQueryOutput, 'Quering, please wait.')
-                else:
-                    XPSetWidgetDescriptor(self.metarQueryOutput, 'Please insert a valid ICAO code.')
+                self.metarQuery()
                 return 1
         return 0
 
+    def metarQuery(self):
+        buff = []
+        XPGetWidgetDescriptor(self.metarQueryInput, buff, 256)
+        query = buff[0].strip()
+        if len(query) == 4:
+            self.weather.weatherClientSend('?' + query)
+            XPSetWidgetDescriptor(self.metarQueryOutput, 'Quering, please wait.')
+        else:
+            XPSetWidgetDescriptor(self.metarQueryOutput, 'Please insert a valid ICAO code.')
+
     def metarQueryCallback(self, msg):
         ''' Callback for metar queries '''