*** empty log message ***

direct/src/tkwidgets/Slider.py

@@ -17,8 +17,8 @@ SLIDER_MINI = 'mini'
 SLIDER_FULL_WIDTH = 50
 SLIDER_FULL_HEIGHT = 25
 
-SLIDER_MINI_WIDTH = 22
+SLIDER_MINI_WIDTH = 16
-SLIDER_MINI_HEIGHT = 18
+SLIDER_MINI_HEIGHT = 16
 
 globalClock = ClockObject.getGlobalClock()
 
@@ -121,14 +121,12 @@ class SliderWidget(Pmw.MegaWidget):
             height = self['height']
 
         halfWidth = width/2.0
+        halfHeight = height/2.0
         left = -(halfWidth - 2)
         right = halfWidth - 2
-        halfHeight = height/2.0
         top = -(halfHeight - 2)
         bottom = halfHeight - 2
 
-        print left, right,bottom,top
-        
         # The canvas 
         self._canvas = self.createcomponent('canvas', (), None,
                                             Canvas, (interior,),
@@ -275,30 +273,453 @@ class PopupSliderWidget(Pmw.MegaToplevel):
     def __init__(self, parent = None, **kw):
         optiondefs = (
             ('width',                    150,            None),
-            ('height',                   30,             None),
+            ('height',                   25,             None),
             ('xoffset',                  0,              None), # pixels
             ('yoffset',                  1,              None), # pixels
             )
         self.defineoptions(kw, optiondefs)
         Pmw.MegaToplevel.__init__(self, parent)
+        interior = self.interior()
         self.withdraw()
         self.overrideredirect(1)
-        self.interior()['relief'] = RAISED
+        interior['relief'] = RAISED
-        self.interior()['borderwidth'] = 3
+        interior['borderwidth'] = 2
-        self.b = Button(self.interior(), text = 'hello')
+        left = -self['width']/2.0
+        right = self['width']/2.0
+        top = -10
+        bottom = top + self['height']
+        self._canvas = self.createcomponent('canvas', (), None,
+                                            Canvas, (interior,),
+                                            relief = FLAT,
+                                            width = self['width'],
+                                            height = self['height'],
+                                            highlightthickness = 0,
+                                            scrollregion = (left, top,
+                                                            right, bottom)
+                                            )
+        self._canvas.pack(expand = 1, fill = BOTH)
+        self.marker = self._canvas.create_polygon(-6.9 + 1,12,
+                                    6.9+1,12,
+                                    1, 0,
+                                    fill = 'black',
+                                    tags = ('slider',))
+        self._canvas.create_polygon(-5.75,10,
+                                    5.75,10,
+                                    0, 0,
+                                    fill = 'grey85',
+                                    outline = 'black',
+                                    tags = ('slider',))
+        # The indicator
+        self.lineLeft = lineLeft = left + 10
+        self.lineRight = lineRight = right -10
+        self._canvas.create_line(lineLeft, 1,
+                                 lineRight, 1,
+                                 width = 2)
+
+        self.b = Button(interior, text = 'hello')
         self.b['command'] = self.withdraw
         self.b.pack()
         self.initialiseoptions(PopupSliderWidget)
+        
     def showPopup(self, widget):
         x = widget.winfo_rootx() + widget.winfo_width() - self['width']
         y = widget.winfo_rooty() + widget.winfo_height()
         Pmw.setgeometryanddeiconify(self, '%dx%d+%d+%d' %
                                     (self['width'], self['height'],x,y))
+
 """
+
 pw = PopupSliderWidget()
 tl = Toplevel()
-b = Button(tl, text = 'hello')
+b = Button(tl, text = 'V')
-b.pack(expand = 1, fill = X)
+b.pack()
-b.bind('<ButtonPress-1>', lambda event, s = b: pw.showPopup(b))
+
-#b.bind('<ButtonRelease-1>', lambda event: pw.withdraw())
+fCrossedLine = 0
+def move(event):
+    global fCrossedLine
+    if fCrossedLine:
+        newX = pw._canvas.canvasx(event.x_root) - pw.winfo_rootx()
+        if newX < pw.lineLeft:
+            newX = pw.lineLeft
+        elif newX > pw.lineRight:
+            newX = pw.lineRight
+        print (newX - pw.lineLeft)/(pw.lineRight - pw.lineLeft)
+        startX = getX()
+        dx = newX - startX
+        pw._canvas.move('slider', dx, 0)
+    else:
+        if event.y_root >= pw.winfo_rooty() + 10:
+            fCrossedLine = 1
+
+def getX():
+    c = pw._canvas.coords(pw.marker)
+    return c[4]
+
+def press(event):
+    global fCrossedLine
+    print 'press'
+    fCrossedLine = 0
+    pw.showPopup(b)
+    b.bind('<Motion>', move)
+
+def unpostCanvas(event):
+    print 'unpostCanvas', event.x_root, pw._canvas.winfo_rootx()
+    if event.x_root < pw._canvas.winfo_rootx():
+        print 'blah'
+    Pmw.popgrab(pw._canvas)
+    pw._canvas.withdraw()
+
+def popupPress(event):
+    global fCrossedLine
+    print 'popupPress'
+    fCrossedLine = 1
+    pw._canvas.bind('<Motion>', move)
+
+def release(event):
+    if fCrossedLine:
+        pw.withdraw()
+        b.unbind('<Motion>')
+        pw._canvas.unbind('<Motion>')
+    else:
+        Pmw.pushgrab(pw._canvas, 1, unpostCanvas)
+        pw._canvas.focus_set()
+
+b.bind('<ButtonPress-1>', press)
+b.bind('<ButtonRelease-1>', release)
+pw._canvas.bind('<ButtonPress-1>', popupPress)
+pw._canvas.bind('<ButtonRelease-1>', release)
+
+
 """
+
+
+# Based on Pmw ComboBox code.
+class PopupSlider(Pmw.MegaWidget):
+    def __init__(self, parent = None, **kw):
+
+	# Define the megawidget options.
+	INITOPT = Pmw.INITOPT
+	optiondefs = (
+	    ('dropdown',           1,          INITOPT),
+	    ('buttonaspect',       1.0,        INITOPT),
+	    ('fliparrow',          0,          INITOPT),
+	    ('labelmargin',        0,          INITOPT),
+	    ('labelpos',           None,       INITOPT),
+            # Behavior
+            # Initial value of slider, use self.set to change value
+            ('value',           0.0,            INITOPT),
+            ('numDigits',       2,              self._setNumDigits),
+            # Command to execute on slider updates
+            ('command',         None,           None),
+            # Extra data to be passed to command function
+            ('commandData',     [],             None),
+            # Callback's to execute during mouse interaction
+            ('preCallback',     None,           None),
+            ('postCallback',    None,           None),
+            # Extra data to be passed to callback function, needs to be a list
+            ('callbackData',    [],             None),
+	)
+	self.defineoptions(kw, optiondefs)
+
+	# Initialise the base class (after defining the options).
+	Pmw.MegaWidget.__init__(self, parent)
+
+	# Create the components.
+	interior = self.interior()
+
+        # Current value
+        self.value = self['value']
+
+        # Interaction flags
+        self._fUpdate = 0
+        self._fUnpost = 0
+        self._firstPress = 1
+        self._fPressInsde = 0
+
+	self._entryfield = self.createcomponent('entryfield',
+		(('entry', 'entryfield_entry'),), None,
+		Pmw.EntryField, (interior,))
+	self._entryfield.grid(column=2, row=2, sticky='nsew')
+	interior.grid_columnconfigure(2, weight = 1)
+	self._entryWidget = self._entryfield.component('entry')
+
+        # Slider dimensions
+        width = 100
+        xPad = 10
+        canvasWidth = width + 2 * xPad
+        height = 20
+        self.left = left = -(width/2.0)
+        self.right = right = (width/2.0)
+        top = -5
+        bottom = top + height
+
+        # Create slider
+	if self['dropdown']:
+	    self._isPosted = 0
+            interior.grid_rowconfigure(2, weight = 1)
+
+	    # Create the arrow button.
+	    self._arrowBtn = self.createcomponent('arrowbutton',
+		    (), None,
+		    Canvas, (interior,), borderwidth = 2,
+		    relief = 'raised',
+		    width = 16, height = 16)
+	    self._arrowBtn.grid(column=3, row=2)
+	    self._arrowRelief = self._arrowBtn.cget('relief')
+
+	    # Create the label.
+	    self.createlabel(interior, childCols=2)
+
+	    # Create the dropdown window.
+	    self._popup = self.createcomponent(
+                'popup',
+                (), None,
+                Toplevel, (interior,),
+                relief = RAISED, borderwidth = 2)
+	    self._popup.withdraw()
+	    self._popup.overrideredirect(1)
+
+	    # Create the canvas inside the dropdown window.
+            # Min label
+            self._minLabel = Label(self._popup, text = 'MINAAAAAA')
+            self._minLabel.pack(side = LEFT)
+            # Slider
+            self._canvas = self.createcomponent(
+                'canvas', (), None,
+                Canvas, (self._popup,),
+                width = canvasWidth,
+                height = height,
+                bd = 3,
+                highlightthickness = 0,
+                scrollregion = (left - xPad, top, right + xPad, bottom))
+	    self._canvas.pack(side = LEFT, expand=1, fill='both')
+            # Max label
+            self._maxLabel = Label(self._popup, text = 'MAX')
+            self._maxLabel.pack(side = LEFT)
+            
+	    # Bind events to the arrow button.
+	    self._arrowBtn.bind('<1>', self._postCanvas)
+	    self._arrowBtn.bind('<Configure>', self._drawArrow)
+
+	    # Bind events to the dropdown window.
+	    self._popup.bind('<Escape>', self._unpostCanvas)
+	    self._popup.bind('<ButtonRelease-1>', self._dropdownBtnRelease)
+	    self._popup.bind('<ButtonPress-1>', self._dropdownBtnPress)
+            self._popup.bind('<Motion>', self._dropdownMove)
+
+	    # Bind events to the Tk listbox.
+	    #self._canvas.bind('<Enter>', self._unpostOnNextRelease)
+
+	    # Bind events to the Tk entry widget.
+	    self._entryWidget.bind('<Configure>', self._resizeArrow)
+
+            # Need to unpost the popup if the entryfield is unmapped (eg: 
+            # its toplevel window is withdrawn) while the popup canvas is
+            # displayed.
+            self._entryWidget.bind('<Unmap>', self._unpostCanvas)
+	else:
+	    # Create the slider below the entry field.
+            self._canvas = self.createcomponent(
+                'canvas', (), None,
+                Canvas, (interior,),
+                width = canvasWidth,
+                height = height,
+                highlightthickness = 0,
+                scrollregion = (left - xPad, top, right + xPad, bottom))
+	    self._canvas.grid(column=2, row=3, sticky='nsew')
+
+	    # The scrolled canvas should expand vertically.
+	    interior.grid_rowconfigure(3, weight = 1)
+
+	    # Create the label.
+	    self.createlabel(interior, childRows=2)
+
+        # Interaction marker
+        xShift = 1
+        # Shadow arrow
+        self._marker = self._canvas.create_polygon(-7 + xShift, 12,
+                                                   7 + xShift, 12,
+                                                   xShift, 0,
+                                                   fill = 'black',
+                                                   tags = ('slider',))
+        # Arrow
+        self._canvas.create_polygon(-6.0, 10,
+                                    6.0, 10,
+                                    0, 0,
+                                    fill = 'grey85',
+                                    outline = 'black',
+                                    tags = ('slider',))
+        # The indicator
+        self._canvas.create_line(left, 0,
+                                 right, 0,
+                                 width = 2)
+
+        
+	# Check keywords and initialise options.
+	self.initialiseoptions(PopupSlider)
+
+    def destroy(self):
+	if self['dropdown'] and self._isPosted:
+            Pmw.popgrab(self._popup)
+        Pmw.MegaWidget.destroy(self)
+
+    #======================================================================
+
+    # Public methods
+
+    def set(self, value, fCommand = 1):
+        """
+        self.set(value, fCommand = 1)
+        Set slider to new value, execute command if fCommand == 1
+        """
+        # Send command if any
+        if fCommand and (self['command'] != None):
+            apply(self['command'], [value] + self['commandData'])
+        # Record value
+        self.value = value
+
+    def updateIndicator(self, value):
+        # Nothing visible to update on this type of widget
+        pass
+    
+    def get(self):
+        """
+        self.get()
+        Get current slider value
+        """
+        return self.value
+
+    #======================================================================
+
+    # Private methods for dropdown canvas.
+
+    def _setNumDigits(self):
+        pass
+
+    def _drawArrow(self, event=None, sunken=0):
+        arrow = self._arrowBtn
+	if sunken:
+	    self._arrowRelief = arrow.cget('relief')
+	    arrow.configure(relief = 'sunken')
+	else:
+	    arrow.configure(relief = self._arrowRelief)
+
+	if self._isPosted and self['fliparrow']:
+            direction = 'up'
+        else:
+            direction = 'down'
+        Pmw.drawarrow(arrow, self['entry_foreground'], direction, 'arrow')
+
+    def _postCanvas(self, event = None):
+        self._isPosted = 1
+        self._fUpdate = 0
+        self._drawArrow(sunken=1)
+
+        # Make sure that the arrow is displayed sunken.
+        self.update_idletasks()
+
+        x = self._entryfield.winfo_rootx()
+        y = self._entryfield.winfo_rooty() + self._entryfield.winfo_height()
+        w = self._entryfield.winfo_width() + self._arrowBtn.winfo_width()
+        minW = self._minLabel.winfo_width()
+        cw =  self._canvas.winfo_width()
+        maxW = self._maxLabel.winfo_width()
+        pw = minW + cw + maxW
+        ch =  self._canvas.winfo_height()
+        sh = self.winfo_screenheight()
+
+        # Compensate if too close to edge of screen
+        if y + ch > sh and y > sh / 2:
+            y = self._entryfield.winfo_rooty() - ch
+
+        Pmw.setgeometryanddeiconify(self._popup, '+%d+%d' % (x + w - pw, y))
+
+        # Grab the popup, so that all events are delivered to it, and
+        # set focus to the canvas, to make keyboard navigation
+        # easier.
+        Pmw.pushgrab(self._popup, 1, self._unpostCanvas)
+        self._canvas.focus_set()
+
+        self._drawArrow()
+
+        # Ignore the first release of the mouse button after posting the
+        # dropdown canvas, unless the mouse enters the dropdown canvas.
+        self._fUpdate = 0
+        self._fUnpost = 0
+        self._firstPress = 1
+        self._fPressInsde = 0
+
+    def _updateValue(self,event):
+        canvasX = self._canvas.canvasx(
+            event.x_root - self._canvas.winfo_rootx())
+        if canvasX < self.left:
+            canvasX = self.left
+        if canvasX > self.right:
+            canvasX = self.right
+        # Get current marker position
+        currX = self._getMarkerX()
+        dx = canvasX - currX
+        self._canvas.move('slider', dx, 0)
+
+    def _dropdownBtnPress(self, event):
+        self._fUpdate = 1
+        self._fPressInside = 1
+        self._updateValue(event)
+            
+    def _dropdownMove(self, event):
+        if self._firstPress and not self._fUpdate:
+            canvasY = self._canvas.canvasy(
+                event.y_root - self._canvas.winfo_rooty())
+            if canvasY > 0:
+                self._fUpdate = 1
+                self._unpostOnNextRelease()
+        elif self._fUpdate:
+            self._updateValue(event)
+
+    def _dropdownBtnRelease(self, event):
+        if (self._fUnpost or
+            (not (self._firstPress or self._fPressInside))):
+            self._unpostCanvas()
+        # Otherwise, continue
+        self._fUpdate = 0
+        self._firstPress = 0
+        self._fPressInside = 0
+
+    def _unpostOnNextRelease(self, event = None):
+	self._fUnpost = 1
+
+    def _resizeArrow(self, event):
+	bw = (string.atoi(self._arrowBtn['borderwidth']) + 
+		string.atoi(self._arrowBtn['highlightthickness']))
+	newHeight = self._entryfield.winfo_reqheight() - 2 * bw
+	newWidth = int(newHeight * self['buttonaspect'])
+	self._arrowBtn.configure(width=newWidth, height=newHeight)
+	self._drawArrow()
+
+    def _unpostCanvas(self, event=None):
+	if not self._isPosted:
+            # It is possible to get events on an unposted popup.  For
+            # example, by repeatedly pressing the space key to post
+            # and unpost the popup.  The <space> event may be
+            # delivered to the popup window even though
+            # Pmw.popgrab() has set the focus away from the
+            # popup window.  (Bug in Tk?)
+            return
+
+        # Restore the focus before withdrawing the window, since
+        # otherwise the window manager may take the focus away so we
+        # can't redirect it.  Also, return the grab to the next active
+        # window in the stack, if any.
+        Pmw.popgrab(self._popup)
+	self._popup.withdraw()
+
+	self._isPosted = 0
+	self._drawArrow()
+
+    def _getMarkerX(self):
+        # Get marker triangle coordinates
+        c = self._canvas.coords(self._marker)
+        # Marker postion defined as X position of third vertex
+        return c[4]
+        
+Pmw.forwardmethods(PopupSlider, Pmw.EntryField, '_entryfield')