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import pygtk
pygtk.require( '2.0' )
import gtk
import Config
#::: NOTE:
# All the graphics resources are loaded in Desktop and referenced here as necessary
#:::
class Block():
WIDTH = 100
HEIGHT = 100
def __init__( self, owner, graphics_context, data ):
self.owner = owner
self.gc = graphics_context
self.data = data
self.type = Block
self.width = Block.WIDTH
self.height = Block.HEIGHT
self.parent = None
self.canChild = False
self.child = None
self.canParent = False
self.parentOffest = 0
self.dragging = False
self.placed = False
self.x = -1
self.y = -1
self.active = True
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.width
self.endY = y + self.height
self.invalidate_rect( not self.dragging )
if self.child:
self.child._updateParentLoc( self.endX, y )
def getAttachLoc( self ):
return ( self.x + self.parentOffset, self.y )
def _updateParentLoc( self, x, y ):
self.setLoc( x - self.parentOffset, y )
def testChild( self, loc ):
if not self.canParent:
return False
if self.child:
return self.child.testChild( loc )
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._updateParentLoc( 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 event.x > self.endX:
if self.child:
return self.child._button_pressB( event )
else:
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.width//2, self.height//2 )
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.width, self.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 ):
pass # override in subclasses
def drawHighlight( self, startX, startY, stopX, stopY, pixmap ):
pass # override in subclasses
class Instrument(Block):
MASK_START = 0
#::: data format:
# { }
#:::
def __init__( self, owner, graphics_context, data ):
Block.__init__( self, owner, graphics_context, data )
self.type = Instrument
self.canParent = True
def _doButtonPress( self, event ): # we were hit with a button press
pass
def _doDraw( self, startX, startY, stopX, stopY, pixmap ):
# draw border
if self.active: self.gc.foreground = self.owner.colors["Border_Active"]
else: self.gc.foreground = self.owner.colors["Border_Inactive"]
self.gc.set_clip_origin( self.x-Instrument.MASK_START, self.y )
pixmap.draw_rectangle( self.gc, True, self.x, self.y, self.width, self.height )
# draw block
if self.active: self.gc.foreground = self.owner.colors["Bg_Active"]
else: self.gc.foreground = self.owner.colors["Bg_Inactive"]
self.gc.set_clip_origin( self.x-Instrument.MASK_START, self.y-self.height )
pixmap.draw_rectangle( self.gc, True, self.x, self.y, self.width, self.height )
def drawHighlight( self, startX, startY, stopX, stopY, pixmap ):
self.gc.foreground = self.owner.colors["Border_Highlight"]
self.gc.set_clip_origin( self.x-Instrument.MASK_START, self.y )
pixmap.draw_rectangle( self.gc, True, self.x, self.y, self.width, self.height )
class Drum(Block):
MASK_START = 100
#::: data format:
# { }
#:::
def __init__( self, owner, graphics_context, data ):
Block.__init__( self, owner, graphics_context, data )
self.type = Drum
def _doButtonPress( self, event ): # we were hit with a button press
pass
def _doDraw( self, startX, startY, stopX, stopY, pixmap ):
# draw border
if self.active: self.gc.foreground = self.owner.colors["Border_Active"]
else: self.gc.foreground = self.owner.colors["Border_Inactive"]
self.gc.set_clip_origin( self.x-Drum.MASK_START, self.y )
pixmap.draw_rectangle( self.gc, True, self.x, self.y, self.width, self.height )
# draw block
if self.active: self.gc.foreground = self.owner.colors["Bg_Active"]
else: self.gc.foreground = self.owner.colors["Bg_Inactive"]
self.gc.set_clip_origin( self.x-Drum.MASK_START, self.y-self.height )
pixmap.draw_rectangle( self.gc, True, self.x, self.y, self.width, self.height )
def drawHighlight( self, startX, startY, stopX, stopY, pixmap ):
self.gc.foreground = self.owner.colors["Border_Highlight"]
self.gc.set_clip_origin( self.x-Drum.MASK_START, self.y )
pixmap.draw_rectangle( self.gc, True, self.x, self.y, self.width, self.height )
class Loop(Block):
HEAD = 13
BEAT = 23
TAIL = BEAT + 4
BEAT_MUL3 = BEAT*3
MASK_START = 200
MASK_BEAT = MASK_START + HEAD
MASK_TAIL = MASK_START + HEAD + BEAT*3
#::: data format:
# { "beats": N }
#:::
def __init__( self, owner, graphics_context, data ):
Block.__init__( self, owner, graphics_context, data )
self.type = Loop
self.width = Loop.HEAD + Loop.BEAT*(data["beats"]-1) + Loop.TAIL
self.canParent = True
self.canChild = True
self.parentOffset = Loop.HEAD - 4
def _doButtonPress( self, event ): # we were hit with a button press
pass
def _doDraw( self, startX, startY, stopX, stopY, pixmap ):
#-- draw head -----------------------------------------
# draw border
if self.active: self.gc.foreground = self.owner.colors["Border_Active"]
else: self.gc.foreground = self.owner.colors["Border_Inactive"]
self.gc.set_clip_origin( self.x-Loop.MASK_START, self.y )
pixmap.draw_rectangle( self.gc, True, self.x, self.y, Loop.HEAD, self.height )
# draw block
if self.active: self.gc.foreground = self.owner.colors["Bg_Active"]
else: self.gc.foreground = self.owner.colors["Bg_Inactive"]
self.gc.set_clip_origin( self.x-Loop.MASK_START, self.y-self.height )
pixmap.draw_rectangle( self.gc, True, self.x, self.y, Loop.HEAD, self.height )
#-- draw beats ----------------------------------------
beats = self.data["beats"] - 1 # last beat is drawn with the tail
x = self.x + Loop.HEAD
while beats > 3:
# draw border
if self.active: self.gc.foreground = self.owner.colors["Border_Active"]
else: self.gc.foreground = self.owner.colors["Border_Inactive"]
self.gc.set_clip_origin( x-Loop.MASK_BEAT, self.y )
pixmap.draw_rectangle( self.gc, True, x, self.y, Loop.BEAT_MUL3, self.height )
# draw block
if self.active: self.gc.foreground = self.owner.colors["Bg_Active"]
else: self.gc.foreground = self.owner.colors["Bg_Inactive"]
self.gc.set_clip_origin( x-Loop.MASK_BEAT, self.y-self.height )
pixmap.draw_rectangle( self.gc, True, x, self.y, Loop.BEAT_MUL3, self.height )
x += Loop.BEAT_MUL3
beats -= 3
if beats:
width = Loop.BEAT*beats
# draw border
if self.active: self.gc.foreground = self.owner.colors["Border_Active"]
else: self.gc.foreground = self.owner.colors["Border_Inactive"]
self.gc.set_clip_origin( x-Loop.MASK_BEAT, self.y )
pixmap.draw_rectangle( self.gc, True, x, self.y, width, self.height )
# draw block
if self.active: self.gc.foreground = self.owner.colors["Bg_Active"]
else: self.gc.foreground = self.owner.colors["Bg_Inactive"]
self.gc.set_clip_origin( x-Loop.MASK_BEAT, self.y-self.height )
pixmap.draw_rectangle( self.gc, True, x, self.y, width, self.height )
x += width
#-- draw tail -----------------------------------------
# draw border
if self.active: self.gc.foreground = self.owner.colors["Border_Active"]
else: self.gc.foreground = self.owner.colors["Border_Inactive"]
self.gc.set_clip_origin( x-Loop.MASK_TAIL, self.y )
pixmap.draw_rectangle( self.gc, True, x, self.y, Loop.TAIL, self.height )
# draw block
if self.active: self.gc.foreground = self.owner.colors["Bg_Active"]
else: self.gc.foreground = self.owner.colors["Bg_Inactive"]
self.gc.set_clip_origin( x-Loop.MASK_TAIL, self.y-self.height )
pixmap.draw_rectangle( self.gc, True, x, self.y, Loop.TAIL, self.height )
def drawHighlight( self, startX, startY, stopX, stopY, pixmap ):
self.gc.foreground = self.owner.colors["Border_Highlight"]
#-- draw head -----------------------------------------
self.gc.set_clip_origin( self.x-Loop.MASK_START, self.y )
pixmap.draw_rectangle( self.gc, True, self.x, self.y, Loop.HEAD, self.height )
#-- draw beats ----------------------------------------
beats = self.data["beats"] - 1 # last beat is drawn with the tail
x = self.x + Loop.HEAD
while beats > 3:
self.gc.set_clip_origin( x-Loop.MASK_BEAT, self.y )
pixmap.draw_rectangle( self.gc, True, x, self.y, Loop.BEAT_MUL3, self.height )
x += Loop.BEAT_MUL3
beats -= 3
if beats:
width = Loop.BEAT*beats
self.gc.set_clip_origin( x-Loop.MASK_BEAT, self.y )
pixmap.draw_rectangle( self.gc, True, x, self.y, width, self.height )
x += width
#-- draw tail -----------------------------------------
self.gc.set_clip_origin( x-Loop.MASK_TAIL, self.y )
pixmap.draw_rectangle( self.gc, True, x, self.y, Loop.TAIL, self.height )
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