82 lines
2.7 KiB
Python
82 lines
2.7 KiB
Python
from panda3d.core import *
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from direct.showbase.DirectObject import DirectObject
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class TexViewer(DirectObject):
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""" A simple class to pop up a card onscreen to see the contents
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of a texture. """
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def __init__(self, tex):
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self.tex = tex
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self.cleanedUp = False
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self.root = aspect2d.attachNewNode('texViewer')
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self.root.setBin('gui-popup', 10000)
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cards = self.root.attachNewNode('cards')
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# We'll put the full-resolution texture on the left.
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cm = CardMaker('left')
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l, r, b, t = (-1, -0.1, 0, 0.9)
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cm.setFrame(l, r, b, t)
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left = cards.attachNewNode(cm.generate())
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left.setTexture(self.tex)
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left.setTransparency(TransparencyAttrib.MAlpha)
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ls = LineSegs('frame')
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ls.setColor(0, 0, 0, 1)
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ls.moveTo(l, 0, b)
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ls.drawTo(r, 0, b)
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ls.drawTo(r, 0, t)
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ls.drawTo(l, 0, t)
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ls.drawTo(l, 0, b)
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cards.attachNewNode(ls.create())
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# And the "simple", reduced-resolution version goes on the
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# right.
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if self.tex.hasSimpleRamImage():
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self.t2 = Texture('simple')
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self.t2.setup2dTexture(self.tex.getSimpleXSize(),
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self.tex.getSimpleYSize(),
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Texture.TUnsignedByte,
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Texture.FRgba8)
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self.t2.setRamImage(self.tex.getSimpleRamImage())
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self.t2.setMagfilter(Texture.FTNearest)
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cm = CardMaker('right')
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l, r, b, t = (0.1, 1, 0, 0.9)
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cm.setFrame(l, r, b, t)
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right = cards.attachNewNode(cm.generate())
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right.setTexture(self.t2)
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right.setTransparency(TransparencyAttrib.MAlpha)
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ls = LineSegs('frame')
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ls.setColor(0, 0, 0, 1)
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ls.moveTo(l, 0, b)
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ls.drawTo(r, 0, b)
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ls.drawTo(r, 0, t)
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ls.drawTo(l, 0, t)
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ls.drawTo(l, 0, b)
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cards.attachNewNode(ls.create())
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# Scale both sides by the aspect ratio.
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if self.tex.getXSize() > self.tex.getYSize():
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cards.setScale(1, 1, float(self.tex.getYSize()) / self.tex.getXSize())
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else:
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cards.setScale(float(self.tex.getXSize()) / self.tex.getYSize(), 1, 1)
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# Label the texture.
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tn = TextNode('label')
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tn.setShadow(0.1, 0.1)
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tn.setText(self.tex.getName())
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tn.setAlign(tn.ACenter)
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tnp = self.root.attachNewNode(tn)
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tnp.setScale(0.1)
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tnp.setPos(0, 0, -tn.getHeight() * 0.1)
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def cleanup(self):
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if not self.cleanedUp:
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self.root.removeNode()
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self.cleanedUp = True
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self.tex = None
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self.t2 = None
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