186 lines
6.5 KiB
Python
186 lines
6.5 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2024 Peter McB *
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# * *
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# * This file is part of the FreeCAD CAx development system. *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * This program is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with this program; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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__title__ = "FreeCAD result mechanical task panel"
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__author__ = "PMcB"
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__url__ = "https://www.freecad.org"
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## @package view_result_mechanical
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# \ingroup FEM
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# \brief Create and Place Labels on the screen with an optional image.
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import FreeCADGui
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from pivy import coin
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"""
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Place Label on the screen with an optional image.
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positions on screen:
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(-.9, .9, 0) top left
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(.9, .9, 0) upper right
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(-.9, -.9, 0) lower left
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(.9, -.9, 0) lower right
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"""
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class createLabel:
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def __init__(self, trans, text, image="") -> None:
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self.textSep = coin.SoSeparator()
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self.cam = coin.SoOrthographicCamera()
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self.cam.aspectRatio = 1
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self.cam.viewportMapping = coin.SoCamera.LEAVE_ALONE
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self.trans = coin.SoTranslation()
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self.trans.translation = trans
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self.translation = trans
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self.color = coin.SoBaseColor()
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self.color.rgb = (0, 0, 0)
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self.myFont = coin.SoFont()
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self.myFont.name = "Arial,FreeSans,sans"
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# self.myFont.name = "FreeMono,FreeSans,sans"
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self.size = 20 # 24
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self.myFont.size.setValue(self.size)
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self.SoText2 = coin.SoText2()
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self.SoText2.string = text
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self.textSep.addChild(self.cam)
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self.textSep.addChild(self.trans)
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self.textSep.addChild(self.color)
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self.textSep.addChild(self.myFont)
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self.textSep.addChild(self.SoText2)
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self.activeDoc = FreeCADGui.ActiveDocument
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self.view = self.activeDoc.ActiveView
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self.viewer = self.view.getViewer()
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self.render = self.viewer.getSoRenderManager()
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self.isimage = False
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if image != "":
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self.add_image(image)
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self.isimage = True
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self.sup = self.render.addSuperimposition(self.textSep)
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self.displayed = True
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# get position of label
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def get_position(self):
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return self.translation
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# set position of label
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def set_position(self, trans):
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self.trans.translation = trans
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self.translation = trans
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# set font
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def set_font(self, font):
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self.myFont.name = font
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# set font size
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def set_font_size(self, font_size):
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self.myFont.size.setValue(font_size)
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# set text of label
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def set_text(self, text):
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self.SoText2.string = text
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# set colour of label
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def set_colour(self, colour):
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self.color.rgb = colour
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self.textSep.addChild(self.color)
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# add or change the image with the label
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def add_image(self, image):
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self.remove_image()
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self.isimage = True
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self.myImage = coin.SoImage()
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self.myImage.filename.setValue(image)
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self.textSep.addChild(self.myImage)
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# remove the image
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def remove_image(self):
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if self.isimage:
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# self.myImage = coin.SoImage()
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self.textSep.removeChild(self.myImage)
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self.isimage = False
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# display the label
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def display(self):
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if not self.displayed:
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# display the Superimposition layer with :
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self.sup = self.render.addSuperimposition(self.textSep)
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self.displayed = True
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# hide the label
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def hide(self):
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# hide the Superimposition layer with :
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if self.displayed:
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self.render.removeSuperimposition(self.sup)
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self.displayed = False
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# help
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def help(self):
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print(
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"""
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Place Label on the screen with an optional image.
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Create an instance:
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import CreateLabels as CL
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label = CL.creatLabel(<position of label>, <title of label>, <optional image>)
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e.g.:
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label1 = CL.createLabel( (-0.7, -0.90, 0), "this is text")
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label2 = CL.createLabel( (+0.5, -0.90, 0), "this is a image", image = "mesh.jpg")
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Positions on screen:
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(-.9, .9, 0) top left
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(.9, .9, 0) upper right
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(-.9, -.9, 0) lower left
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(.9, -.9, 0) lower right
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The following function are available:
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label1.set_position((0.7, 0.50, 0))
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pos= label1.get_position()
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label1.set_font("FreeMono,FreeSans,sans")
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label1.set_font_size(20)
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label1.set_text("hello world")
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label1.set_colour((0,1,0)) # colour of text
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label1.add_image("opera.jpg")
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label1.remove_image()
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label1.hide() - hide the label
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label1.display() - display the label, after hide
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"""
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)
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if __name__ == "__main__":
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label1 = createLabel((-0.98, 0.90, 0), "this a new text")
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"""
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Examples:
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import CreateLabels as CL
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label1 = CL.createLabel( (+0.5, -0.90, 0), "this is a image", image = "mesh.jpg")
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label2 = CL.createLabel( (-0.7, -0.90, 0), "this is text")
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label1.set_colour((0,1,0))
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label1.remove_image()
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label1.add_image("opera.jpg")
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label1.set_text("hello world")
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label1.set_position((+0.7, 0.50, 0))
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label1.set_font("FreeMono,FreeSans,sans")
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label1.hide()
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"""
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