Poodletooth-iLand/panda/direct/gui/DirectEntryScroll.py
2015-03-03 17:10:12 -05:00

119 lines
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4 KiB
Python

__all__ = ['DirectEntryScroll']
from pandac.PandaModules import *
import DirectGuiGlobals as DGG
from DirectScrolledFrame import *
from DirectFrame import *
from DirectEntry import *
class DirectEntryScroll(DirectFrame):
def __init__(self, entry, parent = None, **kw):
optiondefs = (
('pgFunc', PGVirtualFrame, None),
('relief', None, None),
('clipSize', (-1, 1, -1, 1), self.setClipSize),
)
self.defineoptions(kw, optiondefs)
DirectFrame.__init__(self, parent, **kw)
self.canvas = None
self.visXMin = 0.0
self.visXMax = 0.0
self.clipXMin = 0.0
self.clipXMax = 0.0
self.initialiseoptions(DirectEntryScroll)
# don't set a scale on the entry
# instead make it the correct size, use something like:
# text_scale = 0.035,
# frameSize = (-0.006, 3.2, -0.015, 0.036),
# if you need to scale the entry scale it's parent instead
self.entry = entry
self.canvas = NodePath(self.guiItem.getCanvasNode())
self.entry.reparentTo(self.canvas)
self.canvas.setPos(0,0,0)
self.entry.bind(DGG.CURSORMOVE,self.cursorMove)
self.canvas.node().setBounds(OmniBoundingVolume())
self.canvas.node().setFinal(1)
self.resetCanvas()
def cursorMove(self, cursorX, cursorY):
cursorX = self.entry.guiItem.getCursorX() * self.entry['text_scale'][0]
canvasX = self.canvas.getX()
visXMin = self.clipXMin - canvasX
visXMax = self.clipXMax - canvasX
visXCenter = (visXMin + visXMax) * 0.5
distanceToCenter = visXCenter - cursorX
clipExtent = self.clipXMax - self.clipXMin
entryExtent = self.entry['text_scale'][0] * self.entry['width']
entryWiggle = entryExtent - clipExtent
if abs(distanceToCenter) > (clipExtent * 0.5):
self.moveToCenterCursor()
def moveToCenterCursor(self):
cursorX = self.entry.guiItem.getCursorX() * self.entry['text_scale'][0]
canvasX = self.canvas.getX()
visXMin = self.clipXMin - canvasX
visXMax = self.clipXMax - canvasX
visXCenter = (visXMin + visXMax) * 0.5
distanceToCenter = visXCenter - cursorX
newX = canvasX + distanceToCenter
clipExtent = self.clipXMax - self.clipXMin
entryExtent = self.entry['text_scale'][0] * self.entry['width']
entryWiggle = entryExtent - clipExtent
if self.entry.guiItem.getCursorPosition() <= 0: #deals with the cursor jump bug
newX = 0.0
elif newX > 0.0:
newX = 0.0
elif newX < (-entryWiggle):
newX = -entryWiggle
#print("CursorX %s CanvasX %s VisCenter %s Distance %s NewX %s Wiggle %s" % (cursorX, canvasX, visXCenter, distanceToCenter, newX, entryWiggle))
self.canvas.setX(newX)
def destroy(self):
# Destroy children of the canvas
for child in self.canvas.getChildren():
childGui = self.guiDict.get(child.getName())
if childGui:
childGui.destroy()
else:
parts = child.getName().split('-')
simpleChildGui = self.guiDict.get(parts[-1])
if simpleChildGui:
simpleChildGui.destroy()
self.entry.destroy()
self.entry = None
DirectFrame.destroy(self)
def getCanvas(self):
return self.canvas
def setClipSize(self):
self.guiItem.setClipFrame(self['clipSize'])
self.clipXMin = self['clipSize'][0]
self.clipXMax = self['clipSize'][1]
self.visXMin = self.clipXMin
self.visXMax = self.clipXMax
if self.canvas:
self.resetCanvas()
def resetCanvas(self):
self.canvas.setPos(0,0,0)