1 files changed, 121 insertions, 0 deletions
diff --git a/pgu/gui/menus.py b/pgu/gui/menus.py
new file mode 100644
index 0000000..3f8a08f
--- /dev/null
+++ b/pgu/gui/menus.py
@@ -0,0 +1,121 @@
+"""
+"""
+from const import *
+import table
+import basic, button
+
+class _Menu_Options(table.Table):
+    def __init__(self,menu,**params):
+        table.Table.__init__(self,**params)
+        
+        self.menu = menu
+    
+    def event(self,e):
+        handled = False
+        arect = self.get_abs_rect()
+        
+        if e.type == MOUSEMOTION:
+            abspos = e.pos[0]+arect.x,e.pos[1]+arect.y
+            for w in self.menu.container.widgets:
+                if not w is self.menu:
+                    mrect = w.get_abs_rect()
+                    if mrect.collidepoint(abspos):
+                        self.menu._close(None)
+                        w._open(None)
+                        handled = True
+        
+        if not handled: table.Table.event(self,e)
+
+class _Menu(button.Button):
+    def __init__(self,parent,widget=None,**params): #TODO widget= could conflict with module widget
+        params.setdefault('cls','menu')
+        button.Button.__init__(self,widget,**params)
+        
+        self.parent = parent
+        
+        self._cls = self.cls
+        self.options = _Menu_Options(self, cls=self.cls+".options")
+        
+        self.connect(CLICK,self._open,None)
+        
+        self.pos = 0
+    
+    def _open(self,value):
+        self.parent.value = self
+        self.pcls = 'down'
+        
+        self.repaint()
+        self.container.open(self.options,self.rect.x,self.rect.bottom)
+        self.options.connect(BLUR,self._pass,None)
+        self.options.blur(self.options.myfocus)
+        self.options.connect(BLUR,self._close,None)
+        self.options.focus()
+        self.repaint()
+        
+    def _pass(self,value):
+        pass
+        
+    def _close(self,value):
+        self.pcls = ''
+        self.parent.value = None
+        self.repaint()
+        self.options.close()
+    
+    def _value(self,value):
+        self._close(None)
+        if value['fnc'] != None:
+            value['fnc'](value['value'])
+            
+    def event(self,e):
+        button.Button.event(self,e)
+        
+        if self.parent.value == self:
+            self.pcls = 'down'
+    
+    def add(self,w,fnc=None,value=None):
+        w.style.align = -1
+        b = button.Button(w,cls=self.cls+".option")
+        b.connect(CLICK,self._value,{'fnc':fnc,'value':value})
+        
+        self.options.tr()
+        self.options.add(b)
+        
+        return b
+
+class Menus(table.Table):
+    """A drop down menu bar.
+    
+    <pre>Menus(data)</pre>
+    
+    <dl>
+    <dt>data<dd>Menu data, a list of (path,fnc,value), see example below
+    </dl>
+    
+    <strong>Example</strong>
+    <code>
+    data = [
+        ('File/Save',fnc_save,None),
+        ('File/New',fnc_new,None),
+        ('Edit/Copy',fnc_copy,None),
+        ('Edit/Cut',fnc_cut,None),
+        ('Help/About',fnc_help,help_about_content),
+        ('Help/Reference',fnc_help,help_reference_content),
+        ]
+    w = Menus(data)
+    """
+    
+    def __init__(self,data,menu_cls='menu',**params):
+        params.setdefault('cls','menus')
+        table.Table.__init__(self,**params)
+        
+        self.value = None
+        
+        n,m,mt = 0,None,None
+        for path,cmd,value in data:
+            parts = path.split("/")
+            if parts[0] != mt:
+                mt = parts[0]
+                m = _Menu(self,basic.Label(mt,cls=menu_cls+".label"),cls=menu_cls)
+                self.add(m,n,0)
+                n += 1
+            m.add(basic.Label(parts[1],cls=m.cls+".option.label"),cmd,value)