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import pygtk
pygtk.require( '2.0' )
import gtk
import Config
import random
class Block():
WIDTH = 100
HEIGHT = 100
WIDTH_DIV2 = WIDTH//2
HEIGHT_DIV2 = HEIGHT//2
def __init__( self, owner, graphics_context ):
self.owner = owner
self.gc = graphics_context
self.type = Block
self.parent = None
self.canChild = False
self.child = None
self.canParent = False
self.dragging = False
self.placed = False
self.x = -1
self.y = -1
# TEMP
self.color = random.choice( [ "tempBlock1", "tempBlock2", "tempBlock3", "tempBlock4", "tempBlock5" ] )
def destroy( self ):
if self.child:
self.child.destroy()
self.child = None
def getLoc( self ):
return ( self.x, self.y )
def setLoc( self, x, y ):
if x == self.x and y == self.y: return
if self.placed:
self.invalidate_rect( not self.dragging )
else:
self.placed = True
self.x = x
self.y = y
self.endX = x + self.type.WIDTH
self.endY = y + self.type.HEIGHT
self.invalidate_rect( not self.dragging )
if self.child:
self.child.setLoc( self.endX, y )
def testChild( self, loc ):
if not self.canParent:
return False
if self.child:
handled = self.child.testChild( loc )
if handled: return handled
elif abs( self.endX - loc[0] ) < 10 and abs( self.y - loc[1] ) < 10:
return self
return False
def addChild( self, child ):
self.child = child
child._addParent( self )
child.setLoc( self.endX, self.y )
def removeChild( self ):
self.child._removeParent()
self.child = None
def _addParent( self, parent ):
self.parent = parent
def _removeParent( self ):
self.parent = None
def getRoot( self ):
if self.parent: return self.parent.getRoot()
return self
def button_press( self, event ):
if event.y < self.y or event.y > self.endY:
return False
return self._button_pressB( event )
def _button_pressB( self, event ):
if event.x < self.x:
return False
if self.child:
handled = self.child._button_pressB( event )
if handled: return handled
if event.x > self.endX:
return False
self.dragOffset = ( event.x - self.x, event.y - self.y )
self._doButtonPress( event )
return self
def _doButtonPress( self, event ):
pass # override in subclasses
def button_release( self, event ):
if self.dragging:
self.dragging = False
self.invalidateBranch()
def motion_notify( self, event ):
removeFromBlocks = not self.dragging and not self.parent
if not self.dragging:
self.dragging = True
self.invalidate_rect()
if self.parent:
self.parent.removeChild()
self.setLoc( event.x - self.dragOffset[0], event.y - self.dragOffset[1] )
return removeFromBlocks
def _beginDrag( self ):
self.dragging = True
self.dragOffset = ( self.type.WIDTH_DIV2, self.type.HEIGHT_DIV2 )
def invalidateBranch( self, base = True ):
self.invalidate_rect( base )
if self.child:
self.child.invalidateBranch( base )
def invalidate_rect( self, base = True ):
self.owner.invalidate_rect( self.x, self.y, self.type.WIDTH, self.type.HEIGHT, base )
def draw( self, startX, startY, stopX, stopY, pixmap ):
if stopY < self.y or startY > self.endY:
return False
self._drawB( startX, startY, stopX, stopY, pixmap )
def _drawB( self, startX, startY, stopX, stopY, pixmap ):
if stopX < self.x:
return False
if self.child:
self.child._drawB( startX, startY, stopX, stopX, pixmap )
if startX > self.endX:
return False
self._doDraw( startX, startY, stopX, stopY, pixmap )
return True
def _doDraw( self, startX, startY, stopX, stopY, pixmap ):
# TEMP
self.gc.foreground = self.owner.colors[self.color]
pixmap.draw_rectangle( self.gc, True, self.x, self.y, self.type.WIDTH, self.type.HEIGHT )
pass # override in subclasses
def drawHighlight( self, startX, startY, stopX, stopY, pixmap ):
# TEMP
self.gc.foreground = self.owner.colors["tempWhite"]
pixmap.draw_rectangle( self.gc, False, self.x, self.y, self.type.WIDTH-1, self.type.HEIGHT-1 )
class Instrument(Block):
WIDTH = Block.WIDTH
HEIGHT = Block.HEIGHT
WIDTH_DIV2 = WIDTH//2
HEIGHT_DIV2 = HEIGHT//2
def __init__( self, owner, graphics_context ):
Block.__init__( self, owner, graphics_context )
self.type = Instrument
self.canParent = True
self.canChild = True
def _doButtonPress( self, event ): # we were hit with a button press
pass
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