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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 | 1x 2x 1x 1x 1x 1x 1x 1x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x | import macro from 'vtk.js/Sources/macros';
const { vtkErrorMacro } = macro;
// ----------------------------------------------------------------------------
// vtkCanvasView methods
// ----------------------------------------------------------------------------
function vtkCanvasView(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkCanvasView');
// Auto update style
function updateWindow() {
// Canvas size
if (model._renderable) {
model.canvas.setAttribute('width', model.size[0]);
model.canvas.setAttribute('height', model.size[1]);
}
// ImageStream size
Iif (model.viewStream) {
// If same size that's a NoOp
model.viewStream.setSize(model.size[0], model.size[1]);
}
// Offscreen ?
model.canvas.style.display = model.useOffScreen ? 'none' : 'block';
// Cursor type
Iif (model.el) {
model.el.style.cursor = model.cursorVisibility ? model.cursor : 'none';
}
}
publicAPI.onModified(updateWindow);
publicAPI.setContainer = (el) => {
if (model.el && model.el !== el) {
if (model.canvas.parentNode !== model.el) {
vtkErrorMacro('Error: canvas parent node does not match container');
}
// Remove canvas from previous container
model.el.removeChild(model.canvas);
// If the renderer has previously added
// a background image, remove it from the DOM.
if (model.el.contains(model.bgImage)) {
model.el.removeChild(model.bgImage);
}
}
if (model.el !== el) {
model.el = el;
if (model.el) {
model.el.appendChild(model.canvas);
}
// If the renderer is set to use a background
// image, attach it to the DOM.
if (model.useBackgroundImage) {
model.el.appendChild(model.bgImage);
}
// Trigger modified()
publicAPI.modified();
}
};
publicAPI.setBackgroundImage = (img) => {
model.bgImage.src = img.src;
};
publicAPI.setUseBackgroundImage = (value) => {
model.useBackgroundImage = value;
// Add or remove the background image from the
// DOM as specified.
if (
model.useBackgroundImage &&
model.el &&
!model.el.contains(model.bgImage)
) {
model.el.appendChild(model.bgImage);
} else if (
!model.useBackgroundImage &&
model.el &&
model.el.contains(model.bgImage)
) {
model.el.removeChild(model.bgImage);
}
};
publicAPI.setViewStream = (stream) => {
if (model.viewStream === stream) {
return false;
}
if (model.subscription) {
model.subscription.unsubscribe();
model.subscription = null;
}
model.viewStream = stream;
if (model.viewStream) {
// Enable display of the background image
publicAPI.setUseBackgroundImage(true);
// Bind to remote stream
model.subscription = model.viewStream.onImageReady((e) =>
publicAPI.setBackgroundImage(e.image)
);
model.viewStream.setSize(model.size[0], model.size[1]);
model.viewStream.invalidateCache();
model.viewStream.render();
publicAPI.modified();
}
return true;
};
publicAPI.delete = macro.chain(publicAPI.setViewStream, publicAPI.delete);
// --------------------------------------------------------------------------
// Make us look like a View (i.e.: vtkOpenGLRenderWindow)
// --------------------------------------------------------------------------
model._renderable = publicAPI;
model._renderers = [publicAPI];
publicAPI.traverseAllPasses = () => {};
publicAPI.isInViewport = () => true;
publicAPI.getInteractive = () => true;
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
canvas: null,
size: [300, 300],
cursorVisibility: true,
cursor: 'pointer',
useOffScreen: false,
useBackgroundImage: false,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Create internal instances
model.canvas = document.createElement('canvas');
model.canvas.style.width = '100%';
// Create internal bgImage
model.bgImage = new Image();
model.bgImage.style.position = 'absolute';
model.bgImage.style.left = '0';
model.bgImage.style.top = '0';
model.bgImage.style.width = '100%';
model.bgImage.style.height = '100%';
model.bgImage.style.zIndex = '-1';
// Inheritance
macro.obj(publicAPI, model, initialValues);
// Build VTK API
macro.get(publicAPI, model, ['useBackgroundImage', '_renderable']);
macro.setGet(publicAPI, model, [
'canvas',
'cursor',
'useOffScreen',
'interactor',
]);
macro.setGetArray(publicAPI, model, ['size'], 2);
macro.getArray(publicAPI, model, ['_renderers']);
macro.moveToProtected(publicAPI, model, ['renderable', 'renderers']);
// Object methods
vtkCanvasView(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkCanvasView');
// ----------------------------------------------------------------------------
export default { newInstance, extend };
|