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import QtQuick 1.0
import Qt3D 1.0
Rectangle {
width: parent.width/2;
height: parent.height/2
color: parent.color
border.color: parent.border.color
property alias itemPosition: mainItem.position;
property alias itemScale: mainItem.scale;
property alias camera: viewport.camera
// the current x/y positions of the mouse when the onPressed event was triggered;
// values are invalid if onRelease has occured
property int downX;
property int downY;
// current xyz positions of the Translation3D when onPressed was triggered;
// values are invalid if onRelease has occured
property double translateX;
property double translateY;
property double translateZ;
// current angles of the three Rotation3Ds when onPressed was triggered;
// values are invalid if onRelease has occured
property double rotateX;
property double rotateY;
property double rotateZ;
// current xyz sizes of the Scale3D when onPressed was triggered;
// values are invalid if onRelease has occured
property double scaleX;
property double scaleY;
property double scaleZ;
// the pixel sensitivity values of the mousemovements
// TODO: expose via api
// TODO: maybe save in settings api?
property double translateSensitivity: 32;
property double rotateSensitivity: 8;
property double scaleSensitivity: 32;
Viewport {
id: viewport
anchors.fill: parent
picking: false
blending: true
camera: Camera {
farPlane: 2000 // debugging
}
navigation: false
Item3D {
id: mainItem
mesh: source_mesh
effect: Effect {}
transform: [
transformTranslate,
transformRotateX,
transformRotateY,
transformRotateZ,
transformScale
]
}
}
MouseArea {
property int mouseDown: Qt.NoButton
anchors.fill: parent
acceptedButtons: Qt.LeftButton | Qt.RightButton | Qt.MiddleButton
onMouseXChanged: {
if (mouseDown & Qt.LeftButton)
translateMouseX(mouse);
else if (mouseDown === Qt.RightButton)
rotateMouseX(mouse);
else if (mouseDown === Qt.MiddleButton)
scaleMouseX(mouse);
}
onMouseYChanged: {
if (mouseDown & Qt.LeftButton)
translateMouseY(mouse);
else if (mouseDown === Qt.RightButton)
rotateMouseY(mouse);
else if (mouseDown === Qt.MiddleButton)
scaleMouseY(mouse);
}
onPressed: {
// if we already have a mouse button down we don't want to do anything else until it's up again
if (mouseDown !== Qt.NoButton)
return;
mouseDown = mouse.button;
downX = mouse.x;
downY = mouse.y;
if (mouseDown & Qt.LeftButton) {
translateX = transformTranslate.translate.x;
translateY = transformTranslate.translate.y;
translateZ = transformTranslate.translate.z;
}
if (mouseDown & Qt.RightButton) {
rotateX = transformRotateX.angle
rotateY = transformRotateY.angle
rotateZ = transformRotateZ.angle
}
if (mouseDown & Qt.MiddleButton) {
scaleX = transformScale.scale.x
scaleY = transformScale.scale.y
scaleZ = transformScale.scale.z
}
}
// clear the current mouse button upon release
onReleased: { mouseDown = Qt.NoButton }
}
}
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