SOL4Py Samples

#******************************************************************************
#
#  Copyright (c) 2018-2019 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#******************************************************************************

 
#  Simple.py

# encodig: utf-8

import sys

# 
sys.path.append('../')

from SOL4Py.opengl.ZOpenGLMainView import *

class MainView(ZOpenGLMainView):
  ##--------------------------------------------
  class OpenGLView(ZOpenGLView):

    def __init__(self, parent=None):
      self.parent = parent
      super(ZOpenGLView, self).__init__(parent)


    def initializeGL(self):
      glEnable(GL_DEPTH_TEST)      
      glMatrixMode(GL_PROJECTION)
      glLoadIdentity()                    
      glMatrixMode(GL_MODELVIEW)
      self.parent.set_label("GL_VERSION " + str(glGetString(GL_VERSION) ))


    def paintGL(self):
      glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT)
      glClearColor(0.0, 0.0, 1.0, 1.0)
      glLoadIdentity()
      glTranslatef(0.0, 0.0, 0.0)

      glBegin(GL_TRIANGLES)
      self.coloredVertex(1.0, 0.0, 1.0, 0.0, 0.0)
      self.coloredVertex(0.5, 0.5, 1.0, -1.0, 0.9)
      self.coloredVertex(0.0, 0.0, 0.0, 1.0, 0.9)

      self.coloredVertex(1.0, 0.0, 0.0, 0.0, 0.0)
      self.coloredVertex(0.0, 0.5, 0.0, -1.0, -0.9)
      self.coloredVertex(1.0, 1.0, 0.0, 1.0, -0.9)
      glEnd()

      glFlush()


    def resizeGL(self, width, height):
      side = min(width, height)
      if side < 0: return
      glViewport(0, 0, width, height)
      glMatrixMode(GL_PROJECTION)
      glLoadIdentity()
      glMatrixMode(GL_MODELVIEW);

    def coloredVertex(self, r, g, b, x, y):  
      glColor3f(r, g, b)
      glVertex2f(x, y)
  
  ##--------------------------------------------
  
  
  # MainView Constructor
  def __init__(self, title, x, y, width, height):
    super(ZOpenGLMainView, self).__init__(title, x, y, width, height)

    # 1 Create first imageview.
    self.opengl_view = self.OpenGLView(self)

    # 2 Add the image view to a main_layout of this main view.
    self.add(self.opengl_view)

    self.show()


  # Add control pane to MainView
  def add_control_pane(self, fixed_width=240):
    self.vpane = ZVerticalPane(self, fixed_width)
    self.label  = QLabel("PyQt OpenGL sample")
    self.button = QPushButton("Exit") 
    self.button.clicked.connect(self.button_clicked)
     
    self.vpane.add(self.label)
    self.vpane.add(self.button)
    self.set_right_dock(self.vpane)


  def set_label(self, label):
    self.label.setText(label)


  def button_clicked(self):
    ret = QMessageBox.information(None, "Confirmation",
        "Are you sure to want to terminate this program?", 
        QMessageBox.Yes, QMessageBox.No)
    if ret == QMessageBox.Yes:
      self.terminated = True
      self.close()


#*************************************************
#    
if main(__name__):

  try:
    app_name  = os.path.basename(sys.argv[0])
    applet    = QApplication(sys.argv)
  
    main_view = MainView(app_name, 40, 40, 600, 300)
    main_view.show ()

    applet.exec_()

  except:
    traceback.print_exc()