examples: directory structure

When generating the gallery automatically, the structure
of the examples was not the same for all the modules.

This reorganization was made under the following assumption:

An example requires:
- its own directory,
- a '.pyproject' file,
- one or more '.py' files,
- extra files (likes images, .rc, .ui, etc)

Even for cases when  subdirectories are made to depict categories, like
'widgets/state-machine/...', one directory is required per example.

There should not be '.pyproject' files for categories,
except for the general 'examples.pyproject' to open all of them.

Task-number: PYSIDE-1490
Change-Id: Ie690773c816a248016dbebaad90fbb1d1c2aeea5
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
(cherry picked from commit 33743aeb2be37d166bcc3291a98dd22026871cef)

1 files changed, 162 insertions, 0 deletions

diff --git a/examples/3d/simple3d/simple3d.py b/examples/3d/simple3d/simple3d.py
new file mode 100644
index 000000000..3c6ff3bf6
--- /dev/null
+++ b/examples/3d/simple3d/simple3d.py
@@ -0,0 +1,162 @@
+
+#############################################################################
+##
+## Copyright (C) 2018 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the Qt for Python examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+##   * Redistributions of source code must retain the above copyright
+##     notice, this list of conditions and the following disclaimer.
+##   * Redistributions in binary form must reproduce the above copyright
+##     notice, this list of conditions and the following disclaimer in
+##     the documentation and/or other materials provided with the
+##     distribution.
+##   * Neither the name of The Qt Company Ltd nor the names of its
+##     contributors may be used to endorse or promote products derived
+##     from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide6 port of the qt3d/simple-cpp example from Qt v5.x"""
+
+import sys
+from PySide6.QtCore import(Property, QObject, QPropertyAnimation, Signal)
+from PySide6.QtGui import (QGuiApplication, QMatrix4x4, QQuaternion, QVector3D)
+from PySide6.Qt3DCore import (Qt3DCore)
+from PySide6.Qt3DExtras import (Qt3DExtras)
+
+class OrbitTransformController(QObject):
+    def __init__(self, parent):
+        super(OrbitTransformController, self).__init__(parent)
+        self._target = None
+        self._matrix = QMatrix4x4()
+        self._radius = 1
+        self._angle = 0
+
+    def setTarget(self, t):
+        self._target = t
+
+    def getTarget(self):
+        return self._target
+
+    def setRadius(self, radius):
+        if self._radius != radius:
+            self._radius = radius
+            self.updateMatrix()
+            self.radiusChanged.emit()
+
+    def getRadius(self):
+        return self._radius
+
+    def setAngle(self, angle):
+        if self._angle != angle:
+            self._angle = angle
+            self.updateMatrix()
+            self.angleChanged.emit()
+
+    def getAngle(self):
+        return self._angle
+
+    def updateMatrix(self):
+        self._matrix.setToIdentity()
+        self._matrix.rotate(self._angle, QVector3D(0, 1, 0))
+        self._matrix.translate(self._radius, 0, 0)
+        if self._target is not None:
+            self._target.setMatrix(self._matrix)
+
+    angleChanged = Signal()
+    radiusChanged = Signal()
+    angle = Property(float, getAngle, setAngle, notify=angleChanged)
+    radius = Property(float, getRadius, setRadius, notify=radiusChanged)
+
+class Window(Qt3DExtras.Qt3DWindow):
+    def __init__(self):
+        super(Window, self).__init__()
+
+        # Camera
+        self.camera().lens().setPerspectiveProjection(45, 16 / 9, 0.1, 1000)
+        self.camera().setPosition(QVector3D(0, 0, 40))
+        self.camera().setViewCenter(QVector3D(0, 0, 0))
+
+        # For camera controls
+        self.createScene()
+        self.camController = Qt3DExtras.QOrbitCameraController(self.rootEntity)
+        self.camController.setLinearSpeed(50)
+        self.camController.setLookSpeed(180)
+        self.camController.setCamera(self.camera())
+
+        self.setRootEntity(self.rootEntity)
+
+    def createScene(self):
+        # Root entity
+        self.rootEntity = Qt3DCore.QEntity()
+
+        # Material
+        self.material = Qt3DExtras.QPhongMaterial(self.rootEntity)
+
+        # Torus
+        self.torusEntity = Qt3DCore.QEntity(self.rootEntity)
+        self.torusMesh = Qt3DExtras.QTorusMesh()
+        self.torusMesh.setRadius(5)
+        self.torusMesh.setMinorRadius(1)
+        self.torusMesh.setRings(100)
+        self.torusMesh.setSlices(20)
+
+        self.torusTransform = Qt3DCore.QTransform()
+        self.torusTransform.setScale3D(QVector3D(1.5, 1, 0.5))
+        self.torusTransform.setRotation(QQuaternion.fromAxisAndAngle(QVector3D(1, 0, 0), 45))
+
+        self.torusEntity.addComponent(self.torusMesh)
+        self.torusEntity.addComponent(self.torusTransform)
+        self.torusEntity.addComponent(self.material)
+
+        # Sphere
+        self.sphereEntity = Qt3DCore.QEntity(self.rootEntity)
+        self.sphereMesh = Qt3DExtras.QSphereMesh()
+        self.sphereMesh.setRadius(3)
+
+        self.sphereTransform = Qt3DCore.QTransform()
+        self.controller = OrbitTransformController(self.sphereTransform)
+        self.controller.setTarget(self.sphereTransform)
+        self.controller.setRadius(20)
+
+        self.sphereRotateTransformAnimation = QPropertyAnimation(self.sphereTransform)
+        self.sphereRotateTransformAnimation.setTargetObject(self.controller)
+        self.sphereRotateTransformAnimation.setPropertyName(b"angle")
+        self.sphereRotateTransformAnimation.setStartValue(0)
+        self.sphereRotateTransformAnimation.setEndValue(360)
+        self.sphereRotateTransformAnimation.setDuration(10000)
+        self.sphereRotateTransformAnimation.setLoopCount(-1)
+        self.sphereRotateTransformAnimation.start()
+
+        self.sphereEntity.addComponent(self.sphereMesh)
+        self.sphereEntity.addComponent(self.sphereTransform)
+        self.sphereEntity.addComponent(self.material)
+
+if __name__ == '__main__':
+    app = QGuiApplication(sys.argv)
+    view = Window()
+    view.show()
+    sys.exit(app.exec_())