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440c3e0ad0
* Eslint operator spacing config * consistent spacing after comma * comma styling config * Trailing spaces config
86 lines
2.6 KiB
JavaScript
86 lines
2.6 KiB
JavaScript
/*
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* Image Cropping module
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* Usage:
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* Expected Inputs:
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* options.x : x-coordinate of image where the modules starts cropping | default : 0
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* options.y : y-coordinate of image where the modules starts cropping | default : 0
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* options.w : width of the resulting cropped image | default : 50% of input image width
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* options.h : height of the resulting cropped image | default : 50% of input image height
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* Output:
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* The cropped image, which is essentially a rectangle bounded by the lines:
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* x = options.x
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* x = options.x + options.w
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* y = options.y
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* y = options.y + options.h
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*/
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module.exports = function CropModule(options, UI) {
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// we should get UI to return the image thumbnail so we can attach our own UI extensions
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// add our custom in-module html ui:
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if (options.step.inBrowser && !options.noUI) var ui = require('./Ui.js')(options.step, UI);
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var output,
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setupComplete = false;
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// This function is caled everytime the step has to be redrawn
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function draw(input, callback) {
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var step = this;
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// save the input image;
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// TODO: this should be moved to module API to persist the input image
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options.step.input = input.src;
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var parseCornerCoordinateInputs = require('../../util/ParseInputCoordinates');
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//parse the inputs
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parseCornerCoordinateInputs(options, {
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src: input.src,
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x: { valInp: options.x, type: 'horizontal' },
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y: { valInp: options.y, type: 'vertical' },
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w: { valInp: options.w, type: 'horizontal' },
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h: { valInp: options.h, type: 'vertical' },
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}, function (options, coord) {
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options.x = parseInt(coord.x.valInp);
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options.y = parseInt(coord.y.valInp);
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options.w = coord.w.valInp;
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options.h = coord.h.valInp;
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});
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require('./Crop')(input, options, function (out, format) {
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// This output is accessible to Image Sequencer
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step.output = {
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src: out,
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format: format
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};
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// This output is accessible to the UI
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options.step.output = out;
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// Tell the UI that the step has been drawn
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UI.onComplete(options.step);
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// we should do this via event/listener:
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if (ui && ui.hide) ui.hide();
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// start custom UI setup (draggable UI)
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// only once we have an input image
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if (setupComplete === false && options.step.inBrowser && !options.noUI) {
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setupComplete = true;
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ui.setup();
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}
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// Tell Image Sequencer that step has been drawn
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callback();
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});
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}
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return {
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options: options,
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draw: draw,
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output: output,
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UI: UI
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};
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};
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