Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | import macro from 'vtk.js/Sources/macros';
import { vec3 } from 'gl-matrix';
export default function widgetBehavior(publicAPI, model) {
model.painting = model._factory.getPainting();
publicAPI.handleLeftButtonPress = (callData) => {
const manipulator =
model.activeState?.getManipulator?.() ?? model.manipulator;
if (!(manipulator && model.activeState && model.activeState.getActive())) {
model.painting = false;
return macro.VOID;
}
const { worldCoords } = manipulator.handleEvent(
callData,
model._apiSpecificRenderWindow
);
if (!worldCoords?.length) {
model.painting = false;
return macro.VOID;
}
model.painting = true;
const trailCircle = model.widgetState.addTrail();
trailCircle.set(
model.activeState.get('origin', 'up', 'right', 'direction', 'scale1')
);
publicAPI.invokeStartInteractionEvent();
return macro.EVENT_ABORT;
};
publicAPI.handleMouseMove = (callData) => publicAPI.handleEvent(callData);
publicAPI.handleLeftButtonRelease = () => {
if (model.painting) {
publicAPI.invokeEndInteractionEvent();
model.widgetState.clearTrailList();
}
model.painting = false;
return macro.VOID;
};
publicAPI.handleEvent = (callData) => {
const manipulator =
model.activeState?.getManipulator?.() ?? model.manipulator;
if (!(manipulator && model.activeState && model.activeState.getActive())) {
model.painting = false;
return macro.VOID;
}
const normal = model._camera.getDirectionOfProjection();
const up = model._camera.getViewUp();
const right = [];
vec3.cross(right, up, normal);
model.activeState.setUp(...up);
model.activeState.setRight(...right);
model.activeState.setDirection(...normal);
const { worldCoords } = manipulator.handleEvent(
callData,
model._apiSpecificRenderWindow
);
if (!worldCoords?.length) {
return macro.VOID;
}
model.widgetState.setTrueOrigin(...worldCoords);
model.activeState.setOrigin(...worldCoords);
if (model.painting) {
const trailCircle = model.widgetState.addTrail();
trailCircle.set(
model.activeState.get('origin', 'up', 'right', 'direction', 'scale1')
);
} else {
return macro.VOID;
}
publicAPI.invokeInteractionEvent();
return macro.EVENT_ABORT;
};
publicAPI.grabFocus = () => {
if (!model.hasFocus) {
model.activeState = model.widgetState.getHandle();
model.activeState.activate();
model._interactor.requestAnimation(publicAPI);
const canvas = model._apiSpecificRenderWindow.getCanvas();
canvas.onmouseenter = () => {
if (
model.hasFocus &&
model.activeState === model.widgetState.getHandle()
) {
model.activeState.setVisible(true);
}
};
canvas.onmouseleave = () => {
if (
model.hasFocus &&
model.activeState === model.widgetState.getHandle()
) {
model.activeState.setVisible(false);
}
};
}
model.hasFocus = true;
};
publicAPI.loseFocus = () => {
if (model.hasFocus) {
model._interactor.cancelAnimation(publicAPI);
}
model.widgetState.deactivate();
model.widgetState.getHandle().deactivate();
model.activeState = null;
model.hasFocus = false;
};
macro.get(publicAPI, model, ['painting']);
}
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