All files / Sources/Rendering/Core/Viewport index.js

85.71% Statements 60/70
66.66% Branches 8/12
66.66% Functions 16/24
86.88% Lines 53/61

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175    1x     226x                 226x     425x 892x 226x 892x 892x       226x 1x 1x 1x       226x           4113x 4113x 4113x 164x 352x     4113x     226x 469x 469x 3761x   469x     226x 226x         226x               226x   226x   226x   226x   86x     86x     226x 86x       86x             226x           226x   52x     52x             226x 52x       52x             3333x           226x             1x                             226x     226x 226x   226x   226x   226x         1x          
import macro from 'vtk.js/Sources/macros';
 
const { vtkErrorMacro } = macro;
 
function notImplemented(method) {
  return () => vtkErrorMacro(`vtkViewport::${method} - NOT IMPLEMENTED`);
}
 
// ----------------------------------------------------------------------------
// vtkViewport methods
// ----------------------------------------------------------------------------
 
function vtkViewport(publicAPI, model) {
  // Set our className
  model.classHierarchy.push('vtkViewport');
 
  // Public API methods
  publicAPI.getViewProps = () => model.props;
  publicAPI.hasViewProp = (prop) => model.props.includes(prop);
  publicAPI.addViewProp = (prop) => {
    if (prop && !publicAPI.hasViewProp(prop)) {
      model.props.push(prop);
    }
  };
 
  publicAPI.removeViewProp = (prop) => {
    const newPropList = model.props.filter((item) => item !== prop);
    if (model.props.length !== newPropList.length) {
      model.props = newPropList;
    }
  };
 
  publicAPI.removeAllViewProps = () => {
    model.props = [];
  };
 
  // this method get all the props including any nested props
  function gatherProps(prop, allProps = []) {
    allProps.push(prop);
    const children = prop.getNestedProps();
    if (children && children.length) {
      for (let i = 0; i < children.length; i++) {
        gatherProps(children[i], allProps);
      }
    }
    return allProps;
  }
 
  publicAPI.getViewPropsWithNestedProps = () => {
    const allPropsArray = [];
    for (let i = 0; i < model.props.length; i++) {
      gatherProps(model.props[i], allPropsArray);
    }
    return allPropsArray;
  };
 
  publicAPI.addActor2D = publicAPI.addViewProp;
  publicAPI.removeActor2D = (prop) => {
    // VTK way: model.actors2D.RemoveItem(prop);
    publicAPI.removeViewProp(prop);
  };
 
  publicAPI.getActors2D = () => {
    model.actors2D = [];
    model.props.forEach((prop) => {
      model.actors2D = model.actors2D.concat(prop.getActors2D());
    });
    return model.actors2D;
  };
 
  publicAPI.displayToView = () =>
    vtkErrorMacro('call displayToView on your view instead');
  publicAPI.viewToDisplay = () =>
    vtkErrorMacro('callviewtodisplay on your view instead');
  publicAPI.getSize = () => vtkErrorMacro('call getSize on your View instead');
 
  publicAPI.normalizedDisplayToProjection = (x, y, z) => {
    // first to normalized viewport
    const nvp = publicAPI.normalizedDisplayToNormalizedViewport(x, y, z);
 
    // then to view
    return publicAPI.normalizedViewportToProjection(nvp[0], nvp[1], nvp[2]);
  };
 
  publicAPI.normalizedDisplayToNormalizedViewport = (x, y, z) => {
    const scale = [
      model.viewport[2] - model.viewport[0],
      model.viewport[3] - model.viewport[1],
    ];
    return [
      (x - model.viewport[0]) / scale[0],
      (y - model.viewport[1]) / scale[1],
      z,
    ];
  };
 
  publicAPI.normalizedViewportToProjection = (x, y, z) => [
    x * 2.0 - 1.0,
    y * 2.0 - 1.0,
    z * 2.0 - 1.0,
  ];
 
  publicAPI.projectionToNormalizedDisplay = (x, y, z) => {
    // first to nvp
    const nvp = publicAPI.projectionToNormalizedViewport(x, y, z);
 
    // then to ndp
    return publicAPI.normalizedViewportToNormalizedDisplay(
      nvp[0],
      nvp[1],
      nvp[2]
    );
  };
 
  publicAPI.normalizedViewportToNormalizedDisplay = (x, y, z) => {
    const scale = [
      model.viewport[2] - model.viewport[0],
      model.viewport[3] - model.viewport[1],
    ];
    return [
      x * scale[0] + model.viewport[0],
      y * scale[1] + model.viewport[1],
      z,
    ];
  };
 
  publicAPI.projectionToNormalizedViewport = (x, y, z) => [
    (x + 1.0) * 0.5,
    (y + 1.0) * 0.5,
    (z + 1.0) * 0.5,
  ];
 
  publicAPI.PickPropFrom = notImplemented('PickPropFrom');
}
 
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
 
const DEFAULT_VALUES = {
  // _vtkWindow: null,
  background: [0, 0, 0],
  background2: [0.2, 0.2, 0.2],
  gradientBackground: false,
  viewport: [0, 0, 1, 1],
  aspect: [1, 1],
  pixelAspect: [1, 1],
  props: [],
  actors2D: [],
};
 
// ----------------------------------------------------------------------------
 
export function extend(publicAPI, model, initialValues = {}) {
  Object.assign(model, DEFAULT_VALUES, initialValues);
 
  // Build VTK API
  macro.obj(publicAPI, model);
  macro.event(publicAPI, model, 'event');
 
  macro.setGetArray(publicAPI, model, ['viewport'], 4);
 
  macro.setGetArray(publicAPI, model, ['background', 'background2'], 3);
 
  vtkViewport(publicAPI, model);
}
 
// ----------------------------------------------------------------------------
 
export const newInstance = macro.newInstance(extend, 'vtkViewport');
 
// ----------------------------------------------------------------------------
 
export default { newInstance, extend };