All entries for Thursday 11 May 2006

May 11, 2006

Boo AST Attribute Ideas

Here are some ideas I had for handy Boo AST (abstract syntax tree) attributes:
[HandleExceptionWithMessageBox]
def Foo():
CallSomething()
DoStuff()
MaybeCrash()
expands to
def Foo():
try:
CallSomething()
DoStuff()
MaybeCrash()
except ex:
MessageBox.Show(ex.Message)

Very handy for UI code that calls into business objects that may throw up exceptions. Not having to explicitly write the try…except block is a timesaver!

Also,

class MyForm:
btn = Button()

[HandleEvent(btn.Click)]
def ButtonClicked():
print "button clicked"
expands to
class MyForm:
btn = Button()

def constructor():
btn.Click += ButtonClicked

def ButtonClicked():
print "button clicked"
This allows the event hookup to appear on the handling method, rather than miles away in the constructor. This is great for UI code since it means u can delete a method and know there is not still a line of code else trying to point to it. (So basically is works like the VB.NET "handles" keyword.)

Updated Podcasts in Media Player Plugin

New screen shot of my PiMP (Podcasts in Media Player) plug–in. (Click for full screen view)
wmp plugin 2

I ditched the slow and ugly grid for a nicer custom item list view control. Un–played shows are indicated by an icon. Click play starts a show playing. Clicking "Show Notes" opens a window to read HTML show notes.

I want to add sync stuff next and also scan show notes for time codes (hh:mm) and then skip playback to those locations.


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