Ability to hide/show main window (#112)

Functions to hide/show main window
Extra parameter on go(), to declare which window to start with

appJar/appjar.py

@@ -997,7 +997,7 @@ def showSplash(self, text="appJar", fill="red", stripe="black", fg="white", font
 #####################################
 # Event Loop - must always be called at end
 #####################################
-    def go(self, language=None):
+    def go(self, language=None, startWindow=None):
         """ Most important function! Start the GUI """
 
         if self.splashConfig is not None:
@@ -1050,8 +1050,13 @@ def go(self, language=None):
             splash.destroy()
 
         # bring to front
-        self.__bringToFront()
-        self.topLevel.deiconify()
+        if startWindow is None:
+            self.__bringToFront()
+            self.topLevel.deiconify()
+        else:
+            self.hide()
+            sw = self.showSubWindow(startWindow)
+            self.__bringToFront(sw)
 
         # required to make the gui reopen after minimising
         if self.GET_PLATFORM() == self.MAC:
@@ -3150,10 +3155,18 @@ def showSubWindow(self, title):
             tl.focus_set()
             self.topLevel.wait_window(tl.killLab)
 
+        return tl
+
     def setSubWindowLocation(self, title, x, y):
         tl = self.__verifyItem(self.n_subWindows, title)
         tl.geometry("+%d+%d" % (x, y))
 
+    def hide(self):
+        self.topLevel.withdraw()
+
+    def show(self):
+        self.topLevel.deiconify()
+
     def hideSubWindow(self, title):
         tl = self.__verifyItem(self.n_subWindows, title)
         theFunc = tl.stopFunction

docs/mkdocs/docs/pythonGuiOptions.md

@@ -20,6 +20,12 @@ Some basic configuration for the size, position, transparency, etc. of the GUI.
 
 ###Size & Locaiton
 
+* `.hide()` & `.show()`  
+    Used to hide and show the main window.  
+    Useful in conjunction with [SubWindows](/pythonWidgetGrouping/#sub-window)  
+    You can have a menu or logon SubWindow that hides/shows the main window as necessary.  
+    NB. hiding the window, effectively minimizes it, it is still there...
+
 * `.setGeometry(geom)` & `.setGeometry(width, height)`  
     Sets the height & width of the GUI:  
     * Either as a single String `.setGeometry("200x100")` (widthxheight)  

docs/mkdocs/docs/pythonWidgetGrouping.md

@@ -423,6 +423,11 @@ app.go()
     Used to reopen the named *SubWindow*.  
 
 ####Show/Hide Sub Windows
+
+* `.go(startWindow=None)`  
+    If you set a *SubWindow* as the ```startWindow``` appJar will start-up showing the named *SubWindow*.  
+    The main window will be minimized.  
+
 * `.showSubWindow(title)`  
     Will cause the specified *SubWindow* to be shown.  
     If it is set as *modal* the parent window will become uninteractive until the *SubWindow* is closed.  

examples/issues/issue112.py

@@ -0,0 +1,32 @@
+import sys
+sys.path.append("../../")
+from appJar import gui
+
+def press(btn):
+    if btn == "Hide": app.hide()
+    elif btn == "Show": app.show()
+    else: app.showSubWindow(btn)
+
+app=gui("Window")
+
+app.startSubWindow("Menu")
+app.addButton("Hide", press)
+app.addButton("Show", press)
+app.stopSubWindow()
+
+for loop in range(5):
+    label = "PopUp" + str(loop)
+    app.startSubWindow(label)
+    app.setLocation(100+loop*100, 100)
+    app.addLabel(label, label)
+    app.openSubWindow("Menu")
+    app.addButton(label, press)
+    app.stopSubWindow()
+    app.addGrip()
+    app.stopSubWindow()
+
+
+app.addLabel("l1", "mmmmmmmmmm")
+app.addButton("Menu", press)
+#app.go(startWindow="Menu")
+app.go()