mirror of https://github.com/docusealco/docuseal
Alex Turchyn
5 days ago
committed by
GitHub
commit
da44d51a3b
@ -0,0 +1,39 @@
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# frozen_string_literal: true
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class TemplateDocumentsCropController < ApplicationController
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load_and_authorize_resource :template
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before_action :load_attachment
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rescue_from Leptonica::LeptonicaError do
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render json: { error: I18n.t(:unable_to_save) }, status: :unprocessable_content
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end
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def index
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render json: { corners: Leptonica.detect_document_corners(@attachment.download) }
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end
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def create
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authorize!(:update, @template)
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document = Templates::CreateDocumentCrop.call(@template, @attachment, crop_params)
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render json: {
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document: document.as_json(
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methods: %i[metadata signed_key],
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include: {
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preview_images: { methods: %i[url metadata filename] }
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}
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)
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}
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end
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private
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def load_attachment
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@attachment = @template.documents_attachments.find_by!(uuid: params[:attachment_uuid])
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end
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def crop_params
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params.permit(:scan, :rotate, :flip_h, :flip_v, corners: [%i[x y]])
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end
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end
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@ -0,0 +1,32 @@
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# frozen_string_literal: true
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class TemplateDocumentsModifyController < ApplicationController
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load_and_authorize_resource :template
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def create
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authorize!(:update, @template)
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documents_layout =
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params.require(:documents).map do |item|
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item.permit(:attachment_uuid,
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pages: [:attachment_uuid, :page, :rotate,
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{ redact: [%i[x y w h]], replaced_page: %i[attachment_uuid page] }]).to_h
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end
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Templates::ModifyDocuments.call(@template, documents_layout)
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render json: {
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schema: @template.schema,
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fields: @template.fields,
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submitters: @template.submitters,
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documents: @template.schema_documents.reload.preload(:blob, preview_images_attachments: :blob).as_json(
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methods: %i[metadata signed_key],
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include: {
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preview_images: { methods: %i[url metadata filename] }
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}
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)
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}
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rescue Templates::ModifyDocuments::InvalidLayout
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render json: { error: I18n.t(:unable_to_save) }, status: :unprocessable_content
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end
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end
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@ -0,0 +1,11 @@
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# frozen_string_literal: true
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class TemplateDocumentsPageObjectsController < ApplicationController
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load_and_authorize_resource :template
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def index
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attachment = @template.documents_attachments.find_by!(uuid: params[:attachment_uuid])
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render json: Templates::ModifyDocuments.page_objects(attachment, params[:page].to_i)
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end
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end
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@ -0,0 +1,328 @@
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<template>
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<div class="flex flex-1 min-h-0">
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<div
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class="flex-1 min-h-0 flex items-center justify-center px-6 py-4"
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style="container-type: size"
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>
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<div
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ref="pageEl"
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class="relative select-none"
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:style="pageStyle"
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>
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<img
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:src="imageUrl"
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:width="metadata.width"
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:height="metadata.height"
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class="absolute border rounded pointer-events-none"
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style="left: 50%; top: 50%; width: 100%; height: auto"
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:style="imageStyle"
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>
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<svg
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class="absolute inset-0 w-full h-full pointer-events-none"
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viewBox="0 0 100 100"
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preserveAspectRatio="none"
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>
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<path
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:d="dimPath"
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fill="black"
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fill-opacity="0.4"
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fill-rule="evenodd"
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/>
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<polygon
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:points="polygonPoints"
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fill="none"
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stroke="white"
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stroke-width="0.4"
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vector-effect="non-scaling-stroke"
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/>
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</svg>
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<div
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v-for="(corner, cornerIndex) in displayCorners"
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:key="cornerIndex"
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class="absolute w-5 h-5 -ml-2.5 -mt-2.5 rounded-full bg-white border-2 border-neutral-600 cursor-move shadow"
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:style="{ left: `${corner.x * 100}%`, top: `${corner.y * 100}%` }"
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@mousedown.prevent="onCornerMousedown(cornerIndex)"
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/>
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</div>
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</div>
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<div class="w-56 flex-none border-l px-4 py-4 space-y-2 flex flex-col">
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<button
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class="btn btn-sm w-full justify-start normal-case font-normal rounded disabled:bg-base-300"
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:disabled="!!isProcessing"
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@click.prevent="submit(true)"
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>
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<IconInnerShadowTop
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v-if="isProcessing === 'scan'"
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class="w-4 h-4 animate-spin"
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/>
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<IconScan
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v-else
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class="w-4 h-4"
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/>
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{{ t('crop_and_scan') }}
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</button>
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<button
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class="btn btn-sm w-full justify-start normal-case font-normal rounded disabled:bg-base-300"
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:disabled="!!isProcessing"
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@click.prevent="submit(false)"
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>
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<IconInnerShadowTop
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v-if="isProcessing === 'crop'"
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class="w-4 h-4 animate-spin"
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/>
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<IconCrop
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v-else
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width="22"
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height="22"
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style="margin-left: -3px"
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:stroke-width="1.5"
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/>
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<span :style="{ 'margin-left': isProcessing === 'crop' ? '0px' : '-3px' }">
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{{ t('crop') }}
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</span>
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</button>
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<button
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class="btn btn-sm w-full justify-start normal-case font-normal rounded"
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@click.prevent="$emit('cancel')"
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>
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<IconX class="w-4 h-4" />
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{{ t('cancel') }}
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</button>
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<div class="border-t !mt-3 !mb-1" />
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<button
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class="btn btn-sm w-full justify-start normal-case font-normal rounded"
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@click.prevent="rotateCw"
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>
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<IconRotateClockwise class="w-4 h-4" />
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{{ t('rotate') }}
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</button>
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<button
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class="btn btn-sm w-full justify-start normal-case font-normal rounded"
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:class="{ 'btn-active': flipH }"
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@click.prevent="toggleFlip('flipH')"
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>
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<IconFlipVertical class="w-4 h-4" />
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{{ t('flip_horizontal') }}
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</button>
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<button
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class="btn btn-sm w-full justify-start normal-case font-normal rounded"
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:class="{ 'btn-active': flipV }"
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@click.prevent="toggleFlip('flipV')"
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>
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<IconFlipHorizontal class="w-4 h-4" />
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{{ t('flip_vertical') }}
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</button>
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</div>
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</div>
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</template>
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<script>
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import { IconCrop, IconScan, IconInnerShadowTop, IconX, IconRotateClockwise, IconFlipHorizontal, IconFlipVertical } from '@tabler/icons-vue'
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export default {
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name: 'DocumentsEditorCrop',
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components: {
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IconCrop,
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IconScan,
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IconInnerShadowTop,
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IconX,
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IconRotateClockwise,
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IconFlipHorizontal,
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IconFlipVertical
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},
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inject: ['t', 'baseFetch', 'isInlineSize'],
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props: {
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templateId: {
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type: [Number, String],
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required: true
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},
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page: {
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type: Object,
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required: true
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},
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imageUrl: {
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type: String,
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required: true
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},
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metadata: {
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type: Object,
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required: true
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}
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},
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emits: ['apply', 'cancel'],
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data () {
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return {
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corners: [
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{ x: 0, y: 0 },
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{ x: 1, y: 0 },
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{ x: 1, y: 1 },
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{ x: 0, y: 1 }
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],
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cornersTouched: false,
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rotate: this.page.rotate || 0,
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flipH: false,
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flipV: false,
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draggingIndex: null,
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isProcessing: null
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}
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},
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computed: {
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displayWidth () {
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return this.rotate % 180 ? this.metadata.height : this.metadata.width
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},
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displayHeight () {
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return this.rotate % 180 ? this.metadata.width : this.metadata.height
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},
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pageStyle () {
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const ratio = this.displayWidth / this.displayHeight
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return {
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aspectRatio: `${this.displayWidth} / ${this.displayHeight}`,
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width: this.isInlineSize ? `min(100cqw, calc(100cqh * ${ratio}))` : `min(100%, calc(78vh * ${ratio}))`
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}
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},
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imageStyle () {
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const scale = this.rotate % 180 ? this.metadata.width / this.metadata.height : 1
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const scaleX = (this.flipH ? -1 : 1) * scale
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const scaleY = (this.flipV ? -1 : 1) * scale
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return {
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transform: `translate(-50%, -50%) rotate(${this.rotate}deg) scale(${scaleX}, ${scaleY})`
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}
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},
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displayCorners () {
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return this.corners.map((corner) => this.transformPoint(corner, this.rotate, this.flipH, this.flipV))
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},
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polygonPoints () {
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return this.displayCorners.map((corner) => `${corner.x * 100},${corner.y * 100}`).join(' ')
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},
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dimPath () {
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const quad = this.displayCorners.map((corner) => `${corner.x * 100} ${corner.y * 100}`)
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return `M 0 0 H 100 V 100 H 0 Z M ${quad.join(' L ')} Z`
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}
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},
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created () {
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const query = new URLSearchParams({ attachment_uuid: this.page.sourceUuid })
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this.baseFetch(`/templates/${this.templateId}/documents_crop?${query}`).then(async (resp) => {
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if (resp.ok) {
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const data = await resp.json()
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if (data.corners?.length === 4 && !this.cornersTouched) {
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this.corners = data.corners.map((corner) => ({ x: corner.x, y: corner.y }))
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}
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}
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})
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},
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beforeUnmount () {
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window.removeEventListener('mousemove', this.onMousemove)
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window.removeEventListener('mouseup', this.onMouseup)
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},
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methods: {
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transformPoint (point, rotate, flipH, flipV) {
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let { x, y } = point
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if (flipH) {
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x = 1 - x
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}
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if (flipV) {
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y = 1 - y
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}
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if (rotate === 90) {
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return { x: 1 - y, y: x }
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} else if (rotate === 180) {
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return { x: 1 - x, y: 1 - y }
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} else if (rotate === 270) {
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return { x: y, y: 1 - x }
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} else {
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return { x, y }
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}
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},
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inverseTransformPoint (point, rotate, flipH, flipV) {
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let { x, y } = point
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if (rotate === 90) {
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[x, y] = [y, 1 - x]
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} else if (rotate === 180) {
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[x, y] = [1 - x, 1 - y]
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} else if (rotate === 270) {
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[x, y] = [1 - y, x]
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}
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if (flipH) {
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x = 1 - x
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}
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if (flipV) {
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y = 1 - y
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}
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return { x, y }
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},
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rotateCw () {
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this.rotate = (this.rotate + 90) % 360
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},
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toggleFlip (key) {
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this[key] = !this[key]
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},
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pagePoint (event) {
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const rect = this.$refs.pageEl.getBoundingClientRect()
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return {
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x: Math.min(Math.max((event.clientX - rect.left) / rect.width, 0), 1),
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y: Math.min(Math.max((event.clientY - rect.top) / rect.height, 0), 1)
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}
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},
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onCornerMousedown (index) {
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this.draggingIndex = index
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this.cornersTouched = true
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window.addEventListener('mousemove', this.onMousemove)
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window.addEventListener('mouseup', this.onMouseup, { once: true })
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},
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onMousemove (event) {
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if (this.draggingIndex === null) {
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return
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}
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const point = this.inverseTransformPoint(this.pagePoint(event), this.rotate, this.flipH, this.flipV)
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this.corners[this.draggingIndex] = point
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},
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onMouseup () {
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window.removeEventListener('mousemove', this.onMousemove)
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this.draggingIndex = null
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},
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submit (scan) {
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this.isProcessing = scan ? 'scan' : 'crop'
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this.baseFetch(`/templates/${this.templateId}/documents_crop`, {
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method: 'POST',
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body: JSON.stringify({
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attachment_uuid: this.page.sourceUuid,
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corners: this.corners,
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rotate: this.rotate || undefined,
|
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flip_h: this.flipH,
|
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flip_v: this.flipV,
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scan
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}),
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headers: { 'Content-Type': 'application/json' }
|
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}).then(async (resp) => {
|
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const data = await resp.json().catch(() => ({}))
|
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|
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if (resp.ok) {
|
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this.$emit('apply', data.document)
|
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} else if (data.error) {
|
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alert(data.error)
|
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}
|
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}).finally(() => {
|
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this.isProcessing = null
|
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})
|
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}
|
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}
|
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}
|
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</script>
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File diff suppressed because it is too large
Load Diff
@ -0,0 +1,224 @@
|
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<template>
|
||||
<div class="relative">
|
||||
<div
|
||||
class="relative"
|
||||
:style="boxStyle"
|
||||
>
|
||||
<img
|
||||
:src="imageUrl"
|
||||
:width="metadata.width"
|
||||
:height="metadata.height"
|
||||
class="rounded border pointer-events-none outline outline-1 -outline-offset-1 transition-[outline-color] duration-75"
|
||||
:class="[
|
||||
page.rotate % 180 ? 'absolute inset-0 m-auto w-full' : 'w-full',
|
||||
selected ? 'outline-neutral-400' : 'outline-transparent'
|
||||
]"
|
||||
:style="imageStyle"
|
||||
:loading="lazy ? 'lazy' : 'eager'"
|
||||
>
|
||||
<div
|
||||
v-if="areas.length || page.redact.length"
|
||||
class="absolute pointer-events-none"
|
||||
:style="overlayStyle"
|
||||
>
|
||||
<div
|
||||
v-for="(item, areaIndex) in areas"
|
||||
:key="areaIndex"
|
||||
class="absolute border rounded-sm opacity-70"
|
||||
:class="[areaBorderColor(item.submitterIndex), areaBgColor(item.submitterIndex)]"
|
||||
:style="{
|
||||
left: `${item.area.x * 100}%`,
|
||||
top: `${item.area.y * 100}%`,
|
||||
width: `${item.area.w * 100}%`,
|
||||
height: `${item.area.h * 100}%`
|
||||
}"
|
||||
/>
|
||||
<div
|
||||
v-for="(rect, rectIndex) in page.redact"
|
||||
:key="`redact-${rectIndex}`"
|
||||
class="absolute bg-black"
|
||||
:style="{
|
||||
left: `${rect.x * 100}%`,
|
||||
top: `${rect.y * 100}%`,
|
||||
width: `${rect.w * 100}%`,
|
||||
height: `${rect.h * 100}%`
|
||||
}"
|
||||
/>
|
||||
</div>
|
||||
<div
|
||||
v-if="withActions"
|
||||
class="absolute top-1 right-1 flex space-x-1 group-hover:opacity-100"
|
||||
:class="selected ? 'opacity-100' : 'opacity-0'"
|
||||
>
|
||||
<span
|
||||
v-if="extraAction"
|
||||
class="tooltip tooltip-bottom"
|
||||
:data-tip="t(extraAction)"
|
||||
>
|
||||
<button
|
||||
class="btn border-gray-300 bg-white text-base-content btn-xs rounded hover:text-base-100 hover:bg-base-content hover:border-base-content transition-colors p-0"
|
||||
style="width: 22px; height: 22px; min-height: 22px"
|
||||
@click.stop.prevent="$emit(extraAction)"
|
||||
>
|
||||
<IconEraser
|
||||
v-if="extraAction === 'redact'"
|
||||
:width="14"
|
||||
:height="14"
|
||||
:stroke-width="1.6"
|
||||
/>
|
||||
<IconCrop
|
||||
v-else
|
||||
:width="20"
|
||||
:height="20"
|
||||
:stroke-width="1.2"
|
||||
/>
|
||||
</button>
|
||||
</span>
|
||||
<span
|
||||
class="tooltip tooltip-bottom"
|
||||
:data-tip="t('rotate')"
|
||||
>
|
||||
<button
|
||||
class="btn border-gray-300 bg-white text-base-content btn-xs rounded hover:text-base-100 hover:bg-base-content hover:border-base-content transition-colors p-0"
|
||||
style="width: 22px; height: 22px; min-height: 22px"
|
||||
@click.stop.prevent="$emit('rotate')"
|
||||
>
|
||||
<IconRotateClockwise
|
||||
:width="14"
|
||||
:height="14"
|
||||
:stroke-width="1.6"
|
||||
/>
|
||||
</button>
|
||||
</span>
|
||||
<span
|
||||
class="tooltip tooltip-bottom"
|
||||
:data-tip="t('remove')"
|
||||
>
|
||||
<button
|
||||
class="btn border-gray-300 bg-white text-base-content btn-xs rounded hover:text-base-100 hover:bg-base-content hover:border-base-content transition-colors p-0"
|
||||
style="width: 22px; height: 22px; min-height: 22px"
|
||||
@click.stop.prevent="$emit('remove')"
|
||||
>
|
||||
<IconX
|
||||
:width="14"
|
||||
:height="14"
|
||||
:stroke-width="1.6"
|
||||
/>
|
||||
</button>
|
||||
</span>
|
||||
</div>
|
||||
</div>
|
||||
<div
|
||||
v-if="pageNumber"
|
||||
class="text-center text-sm pt-1 pointer-events-none"
|
||||
>
|
||||
{{ t('page') }} {{ pageNumber }}
|
||||
</div>
|
||||
</div>
|
||||
</template>
|
||||
|
||||
<script>
|
||||
import { IconRotateClockwise, IconX, IconEraser, IconCrop } from '@tabler/icons-vue'
|
||||
import Area from './area.vue'
|
||||
|
||||
export default {
|
||||
name: 'DocumentsEditorPage',
|
||||
components: {
|
||||
IconRotateClockwise,
|
||||
IconX,
|
||||
IconEraser,
|
||||
IconCrop
|
||||
},
|
||||
inject: ['t'],
|
||||
props: {
|
||||
page: {
|
||||
type: Object,
|
||||
required: true
|
||||
},
|
||||
imageUrl: {
|
||||
type: String,
|
||||
required: true
|
||||
},
|
||||
metadata: {
|
||||
type: Object,
|
||||
required: true
|
||||
},
|
||||
areas: {
|
||||
type: Array,
|
||||
required: false,
|
||||
default: () => []
|
||||
},
|
||||
selected: {
|
||||
type: Boolean,
|
||||
required: false,
|
||||
default: false
|
||||
},
|
||||
withActions: {
|
||||
type: Boolean,
|
||||
required: false,
|
||||
default: false
|
||||
},
|
||||
pageNumber: {
|
||||
type: Number,
|
||||
required: false,
|
||||
default: null
|
||||
},
|
||||
lazy: {
|
||||
type: Boolean,
|
||||
required: false,
|
||||
default: true
|
||||
},
|
||||
extraAction: {
|
||||
type: String,
|
||||
required: false,
|
||||
default: null
|
||||
}
|
||||
},
|
||||
emits: ['rotate', 'remove', 'redact', 'crop'],
|
||||
computed: {
|
||||
borderColors: Area.computed.borderColors,
|
||||
bgColors: Area.computed.bgColors,
|
||||
boxStyle () {
|
||||
if (!this.page.rotate || !(this.page.rotate % 180)) {
|
||||
return null
|
||||
}
|
||||
|
||||
return { aspectRatio: `${this.metadata.height} / ${this.metadata.width}` }
|
||||
},
|
||||
imageStyle () {
|
||||
if (!this.page.rotate) {
|
||||
return null
|
||||
}
|
||||
|
||||
let transform = `rotate(${this.page.rotate}deg)`
|
||||
|
||||
if (this.page.rotate % 180) {
|
||||
transform += ` scale(${this.metadata.width / this.metadata.height})`
|
||||
}
|
||||
|
||||
return { transform }
|
||||
},
|
||||
overlayStyle () {
|
||||
if (!this.page.rotate || !(this.page.rotate % 180)) {
|
||||
return { inset: '0', transform: this.page.rotate ? `rotate(${this.page.rotate}deg)` : undefined }
|
||||
}
|
||||
|
||||
return {
|
||||
left: '50%',
|
||||
top: '50%',
|
||||
width: '100%',
|
||||
aspectRatio: `${this.metadata.width} / ${this.metadata.height}`,
|
||||
transform: `translate(-50%, -50%) rotate(${this.page.rotate}deg) scale(${this.metadata.width / this.metadata.height})`
|
||||
}
|
||||
}
|
||||
},
|
||||
methods: {
|
||||
areaBorderColor (submitterIndex) {
|
||||
return this.borderColors[Math.max(submitterIndex, 0) % this.borderColors.length]
|
||||
},
|
||||
areaBgColor (submitterIndex) {
|
||||
return this.bgColors[Math.max(submitterIndex, 0) % this.bgColors.length]
|
||||
}
|
||||
}
|
||||
}
|
||||
</script>
|
||||
@ -0,0 +1,413 @@
|
||||
<template>
|
||||
<div class="flex flex-1 min-h-0">
|
||||
<div class="flex-1 overflow-y-auto px-6 py-4">
|
||||
<div
|
||||
ref="pageEl"
|
||||
class="relative mx-auto select-none cursor-crosshair"
|
||||
:style="pageStyle"
|
||||
@mousedown.prevent="onMousedown"
|
||||
>
|
||||
<img
|
||||
:src="imageUrl"
|
||||
:width="metadata.width"
|
||||
:height="metadata.height"
|
||||
class="absolute border rounded pointer-events-none"
|
||||
style="left: 50%; top: 50%; width: 100%; height: auto"
|
||||
:style="imageStyle"
|
||||
>
|
||||
<div
|
||||
class="absolute pointer-events-none"
|
||||
:style="overlayStyle"
|
||||
>
|
||||
<div
|
||||
v-for="(rect, rectIndex) in redactRects"
|
||||
:key="`rect-${rectIndex}`"
|
||||
class="absolute bg-black pointer-events-none"
|
||||
:style="{
|
||||
left: `${rect.x * 100}%`,
|
||||
top: `${rect.y * 100}%`,
|
||||
width: `${rect.w * 100}%`,
|
||||
height: `${rect.h * 100}%`
|
||||
}"
|
||||
/>
|
||||
</div>
|
||||
<div
|
||||
v-if="marquee"
|
||||
class="absolute border border-neutral-600 bg-neutral-600/10 pointer-events-none"
|
||||
:style="marqueeStyle"
|
||||
/>
|
||||
<div
|
||||
v-if="!imagePage && textNodes && !textNodes.length && !imageNodes.length"
|
||||
class="absolute inset-x-0 top-0 flex justify-center pt-4 pointer-events-none"
|
||||
>
|
||||
<span class="bg-base-100/90 border border-neutral-200 rounded-lg shadow px-4 py-2 text-sm">
|
||||
{{ t('there_is_no_text_to_redact_on_this_page') }}
|
||||
</span>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="w-56 flex-none border-l px-4 py-4 space-y-2">
|
||||
<button
|
||||
class="btn btn-sm w-full justify-start normal-case font-normal rounded disabled:bg-base-300"
|
||||
:disabled="!hasRedactions && !wasReset"
|
||||
@click.prevent="apply"
|
||||
>
|
||||
<IconCheck class="w-4 h-4" />
|
||||
{{ t('apply') }}
|
||||
</button>
|
||||
<div class="border-t !mt-3 !mb-1" />
|
||||
<button
|
||||
class="btn btn-sm w-full justify-start normal-case font-normal rounded disabled:bg-base-300"
|
||||
:disabled="!hasRedactions"
|
||||
@click.prevent="reset"
|
||||
>
|
||||
<IconRotate class="w-4 h-4" />
|
||||
{{ t('reset') }}
|
||||
</button>
|
||||
<button
|
||||
class="btn btn-sm w-full justify-start normal-case font-normal rounded"
|
||||
@click.prevent="$emit('cancel')"
|
||||
>
|
||||
<IconX class="w-4 h-4" />
|
||||
{{ t('cancel') }}
|
||||
</button>
|
||||
</div>
|
||||
</div>
|
||||
</template>
|
||||
|
||||
<script>
|
||||
import { IconCheck, IconRotate, IconX } from '@tabler/icons-vue'
|
||||
|
||||
export default {
|
||||
name: 'DocumentsEditorRedact',
|
||||
components: {
|
||||
IconCheck,
|
||||
IconRotate,
|
||||
IconX
|
||||
},
|
||||
inject: ['t', 'baseFetch'],
|
||||
props: {
|
||||
templateId: {
|
||||
type: [Number, String],
|
||||
required: true
|
||||
},
|
||||
page: {
|
||||
type: Object,
|
||||
required: true
|
||||
},
|
||||
imageUrl: {
|
||||
type: String,
|
||||
required: true
|
||||
},
|
||||
metadata: {
|
||||
type: Object,
|
||||
required: true
|
||||
},
|
||||
imagePage: {
|
||||
type: Boolean,
|
||||
required: false,
|
||||
default: false
|
||||
},
|
||||
pageObjectsCache: {
|
||||
type: Object,
|
||||
required: false,
|
||||
default: () => ({})
|
||||
}
|
||||
},
|
||||
emits: ['apply', 'cancel'],
|
||||
data () {
|
||||
return {
|
||||
textNodes: null,
|
||||
imageNodes: [],
|
||||
selectedNodes: {},
|
||||
freeRects: [],
|
||||
rects: [],
|
||||
wasReset: false,
|
||||
marquee: null
|
||||
}
|
||||
},
|
||||
computed: {
|
||||
rotate () {
|
||||
return this.page.rotate || 0
|
||||
},
|
||||
displayWidth () {
|
||||
return this.rotate % 180 ? this.metadata.height : this.metadata.width
|
||||
},
|
||||
displayHeight () {
|
||||
return this.rotate % 180 ? this.metadata.width : this.metadata.height
|
||||
},
|
||||
pageStyle () {
|
||||
return { aspectRatio: `${this.displayWidth} / ${this.displayHeight}` }
|
||||
},
|
||||
imageStyle () {
|
||||
const scale = this.rotate % 180 ? this.metadata.width / this.metadata.height : 1
|
||||
|
||||
return {
|
||||
transform: `translate(-50%, -50%) rotate(${this.rotate}deg) scale(${scale})`
|
||||
}
|
||||
},
|
||||
overlayStyle () {
|
||||
if (!this.rotate || !(this.rotate % 180)) {
|
||||
return { inset: '0', transform: this.rotate ? `rotate(${this.rotate}deg)` : undefined }
|
||||
}
|
||||
|
||||
return {
|
||||
left: '50%',
|
||||
top: '50%',
|
||||
width: '100%',
|
||||
aspectRatio: `${this.metadata.width} / ${this.metadata.height}`,
|
||||
transform: `translate(-50%, -50%) rotate(${this.rotate}deg) scale(${this.metadata.width / this.metadata.height})`
|
||||
}
|
||||
},
|
||||
hasRedactions () {
|
||||
if (this.imagePage) {
|
||||
return this.rects.length > 0
|
||||
}
|
||||
|
||||
return Object.keys(this.selectedNodes).length > 0 || this.freeRects.length > 0
|
||||
},
|
||||
redactRects () {
|
||||
if (this.imagePage) {
|
||||
return this.rects
|
||||
}
|
||||
|
||||
return this.textNodes ? [...this.buildRedactRects(), ...this.freeRects] : []
|
||||
},
|
||||
marqueeStyle () {
|
||||
const left = Math.min(this.marquee.x1, this.marquee.x2)
|
||||
const top = Math.min(this.marquee.y1, this.marquee.y2)
|
||||
|
||||
return {
|
||||
left: `${left * 100}%`,
|
||||
top: `${top * 100}%`,
|
||||
width: `${Math.abs(this.marquee.x2 - this.marquee.x1) * 100}%`,
|
||||
height: `${Math.abs(this.marquee.y2 - this.marquee.y1) * 100}%`
|
||||
}
|
||||
}
|
||||
},
|
||||
created () {
|
||||
if (this.imagePage) {
|
||||
this.rects = (this.page.redact || []).map((rect) => ({ ...rect }))
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
const cacheKey = `${this.page.sourceUuid}-${this.page.sourcePage}`
|
||||
|
||||
if (this.pageObjectsCache[cacheKey]) {
|
||||
this.textNodes = this.pageObjectsCache[cacheKey].text_nodes
|
||||
this.imageNodes = this.pageObjectsCache[cacheKey].image_nodes
|
||||
|
||||
this.preselectNodes()
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
const query = new URLSearchParams({ attachment_uuid: this.page.sourceUuid, page: this.page.sourcePage })
|
||||
|
||||
this.baseFetch(`/templates/${this.templateId}/documents_page_objects?${query}`).then(async (resp) => {
|
||||
if (resp.ok) {
|
||||
const data = await resp.json()
|
||||
|
||||
this.pageObjectsCache[cacheKey] = data
|
||||
this.textNodes = data.text_nodes
|
||||
this.imageNodes = data.image_nodes
|
||||
|
||||
this.preselectNodes()
|
||||
} else {
|
||||
this.$emit('cancel')
|
||||
}
|
||||
})
|
||||
},
|
||||
beforeUnmount () {
|
||||
window.removeEventListener('mousemove', this.onMousemove)
|
||||
window.removeEventListener('mouseup', this.onMouseup)
|
||||
},
|
||||
methods: {
|
||||
inverseRotatePoint (point, rotate) {
|
||||
let { x, y } = point
|
||||
|
||||
if (rotate === 90) {
|
||||
[x, y] = [y, 1 - x]
|
||||
} else if (rotate === 180) {
|
||||
[x, y] = [1 - x, 1 - y]
|
||||
} else if (rotate === 270) {
|
||||
[x, y] = [1 - y, x]
|
||||
}
|
||||
|
||||
return { x, y }
|
||||
},
|
||||
apply () {
|
||||
this.$emit('apply', this.redactRects)
|
||||
},
|
||||
reset () {
|
||||
this.wasReset = true
|
||||
|
||||
if (this.imagePage) {
|
||||
this.rects = []
|
||||
} else {
|
||||
this.selectedNodes = {}
|
||||
this.freeRects = []
|
||||
}
|
||||
},
|
||||
boxesIntersect (a, b) {
|
||||
return a.x < b.x + b.w && a.x + a.w > b.x && a.y < b.y + b.h && a.y + a.h > b.y
|
||||
},
|
||||
preselectNodes () {
|
||||
const nodeRects = []
|
||||
|
||||
;(this.page.redact || []).forEach((rect) => {
|
||||
if (this.imageNodes.some((node) => this.boxesIntersect(node, rect))) {
|
||||
this.freeRects.push({ ...rect })
|
||||
} else {
|
||||
nodeRects.push(rect)
|
||||
}
|
||||
})
|
||||
|
||||
this.textNodes.forEach((node, index) => {
|
||||
const centerX = node.x + (node.w / 2)
|
||||
const centerY = node.y + (node.h / 2)
|
||||
|
||||
const isInside = nodeRects.some((rect) => {
|
||||
return centerX >= rect.x && centerX <= rect.x + rect.w &&
|
||||
centerY >= rect.y && centerY <= rect.y + rect.h
|
||||
})
|
||||
|
||||
if (isInside) {
|
||||
this.selectedNodes[index] = true
|
||||
}
|
||||
})
|
||||
},
|
||||
buildRedactRects () {
|
||||
const nodes = this.textNodes.filter((_, index) => this.selectedNodes[index])
|
||||
|
||||
const sorted = nodes.slice().sort((a, b) => {
|
||||
const diff = (a.y + (a.h / 2)) - (b.y + (b.h / 2))
|
||||
|
||||
return Math.abs(diff) < Math.min(a.h, b.h) / 2 ? a.x - b.x : diff
|
||||
})
|
||||
|
||||
const rects = []
|
||||
|
||||
sorted.forEach((node) => {
|
||||
const last = rects[rects.length - 1]
|
||||
|
||||
const sameLine = last &&
|
||||
Math.abs((node.y + (node.h / 2)) - (last.y + (last.h / 2))) < Math.max(last.h, node.h) / 2
|
||||
|
||||
if (sameLine && node.x <= last.x + last.w + (node.h * 0.7)) {
|
||||
const right = Math.max(last.x + last.w, node.x + node.w)
|
||||
const bottom = Math.max(last.y + last.h, node.y + node.h)
|
||||
|
||||
last.x = Math.min(last.x, node.x)
|
||||
last.y = Math.min(last.y, node.y)
|
||||
last.w = right - last.x
|
||||
last.h = bottom - last.y
|
||||
} else {
|
||||
rects.push({ x: node.x, y: node.y, w: node.w, h: node.h })
|
||||
}
|
||||
})
|
||||
|
||||
return rects
|
||||
},
|
||||
pagePoint (event) {
|
||||
const rect = this.$refs.pageEl.getBoundingClientRect()
|
||||
|
||||
return {
|
||||
x: Math.min(Math.max((event.clientX - rect.left) / rect.width, 0), 1),
|
||||
y: Math.min(Math.max((event.clientY - rect.top) / rect.height, 0), 1)
|
||||
}
|
||||
},
|
||||
onMousedown (event) {
|
||||
if (event.button !== 0 || (!this.imagePage && !this.textNodes)) {
|
||||
return
|
||||
}
|
||||
|
||||
const point = this.pagePoint(event)
|
||||
|
||||
this.marquee = { x1: point.x, y1: point.y, x2: point.x, y2: point.y }
|
||||
|
||||
window.addEventListener('mousemove', this.onMousemove)
|
||||
window.addEventListener('mouseup', this.onMouseup, { once: true })
|
||||
},
|
||||
onMousemove (event) {
|
||||
const point = this.pagePoint(event)
|
||||
|
||||
this.marquee.x2 = point.x
|
||||
this.marquee.y2 = point.y
|
||||
},
|
||||
onMouseup () {
|
||||
window.removeEventListener('mousemove', this.onMousemove)
|
||||
|
||||
if (!this.marquee) {
|
||||
return
|
||||
}
|
||||
|
||||
const start = this.inverseRotatePoint({ x: this.marquee.x1, y: this.marquee.y1 }, this.rotate)
|
||||
const finish = this.inverseRotatePoint({ x: this.marquee.x2, y: this.marquee.y2 }, this.rotate)
|
||||
|
||||
const left = Math.min(start.x, finish.x)
|
||||
const right = Math.max(start.x, finish.x)
|
||||
const top = Math.min(start.y, finish.y)
|
||||
const bottom = Math.max(start.y, finish.y)
|
||||
|
||||
this.marquee = null
|
||||
|
||||
if (right - left < 0.005 && bottom - top < 0.005) {
|
||||
if (this.imagePage) {
|
||||
const index = this.rects.findIndex((rect) => {
|
||||
return left >= rect.x && left <= rect.x + rect.w && top >= rect.y && top <= rect.y + rect.h
|
||||
})
|
||||
|
||||
if (index !== -1) {
|
||||
this.rects.splice(index, 1)
|
||||
}
|
||||
} else {
|
||||
const rectIndex = this.freeRects.findIndex((rect) => {
|
||||
return left >= rect.x && left <= rect.x + rect.w && top >= rect.y && top <= rect.y + rect.h
|
||||
})
|
||||
|
||||
if (rectIndex !== -1) {
|
||||
this.freeRects.splice(rectIndex, 1)
|
||||
} else {
|
||||
const index = this.textNodes.findIndex((node) => {
|
||||
return left >= node.x && left <= node.x + node.w && top >= node.y && top <= node.y + node.h
|
||||
})
|
||||
|
||||
if (index !== -1) {
|
||||
if (this.selectedNodes[index]) {
|
||||
delete this.selectedNodes[index]
|
||||
} else {
|
||||
this.selectedNodes[index] = true
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
} else if (this.imagePage) {
|
||||
this.rects.push({ x: left, y: top, w: right - left, h: bottom - top })
|
||||
} else {
|
||||
const marqueeBox = { x: left, y: top, w: right - left, h: bottom - top }
|
||||
|
||||
this.textNodes.forEach((node, index) => {
|
||||
if (node.x < right && node.x + node.w > left && node.y < bottom && node.y + node.h > top) {
|
||||
this.selectedNodes[index] = true
|
||||
}
|
||||
})
|
||||
|
||||
this.imageNodes.forEach((node) => {
|
||||
if (!this.boxesIntersect(node, marqueeBox)) {
|
||||
return
|
||||
}
|
||||
|
||||
const x = Math.max(node.x, marqueeBox.x)
|
||||
const y = Math.max(node.y, marqueeBox.y)
|
||||
const w = Math.min(node.x + node.w, marqueeBox.x + marqueeBox.w) - x
|
||||
const h = Math.min(node.y + node.h, marqueeBox.y + marqueeBox.h) - y
|
||||
|
||||
this.freeRects.push({ x, y, w, h })
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
</script>
|
||||
@ -0,0 +1,488 @@
|
||||
# frozen_string_literal: true
|
||||
|
||||
module Leptonica
|
||||
extend FFI::Library
|
||||
|
||||
begin
|
||||
ffi_lib %w[
|
||||
libleptonica.so.6
|
||||
liblept.so.5
|
||||
leptonica
|
||||
/opt/homebrew/lib/libleptonica.6.dylib
|
||||
/usr/local/lib/libleptonica.6.dylib
|
||||
]
|
||||
rescue LoadError => e
|
||||
raise "Could not load leptonica library. Make sure it's installed and in your library path. Error: #{e.message}"
|
||||
end
|
||||
|
||||
typedef :pointer, :PIX
|
||||
typedef :pointer, :PTA
|
||||
typedef :pointer, :BOX
|
||||
typedef :pointer, :BOXA
|
||||
typedef :pointer, :PIXA
|
||||
|
||||
L_CLONE = 2
|
||||
L_SEVERITY_NONE = 6
|
||||
|
||||
DETECT_WIDTH = 256
|
||||
MIN_QUAD_AREA_RATIO = 0.2
|
||||
MIN_ORIENT_CONF = 8.0
|
||||
ORIENT_CONF_RATIO = 2.5
|
||||
|
||||
LeptonicaError = Class.new(StandardError)
|
||||
|
||||
attach_function :setMsgSeverity, [:int], :int
|
||||
attach_function :pixCreate, %i[int int int], :PIX
|
||||
attach_function :pixSetSpp, %i[PIX int], :int
|
||||
attach_function :pixClone, [:PIX], :PIX
|
||||
attach_function :pixDestroy, [:pointer], :void
|
||||
attach_function :pixGetWidth, [:PIX], :int
|
||||
attach_function :pixGetHeight, [:PIX], :int
|
||||
attach_function :pixGetDepth, [:PIX], :int
|
||||
attach_function :pixGetWpl, [:PIX], :int
|
||||
attach_function :pixGetData, [:PIX], :pointer
|
||||
attach_function :pixConvertTo32, [:PIX], :PIX
|
||||
attach_function :pixConvertTo8, %i[PIX int], :PIX
|
||||
attach_function :pixInvert, %i[PIX PIX], :PIX
|
||||
attach_function :pixScaleToSize, %i[PIX int int], :PIX
|
||||
attach_function :pixOtsuAdaptiveThreshold, %i[PIX int int int int float pointer pointer], :int
|
||||
attach_function :pixCloseBrick, %i[PIX PIX int int], :PIX
|
||||
attach_function :pixOpenBrick, %i[PIX PIX int int], :PIX
|
||||
attach_function :pixConnComp, %i[PIX pointer int], :BOXA
|
||||
attach_function :pixCountPixels, %i[PIX pointer pointer], :int
|
||||
attach_function :boxaGetCount, [:BOXA], :int
|
||||
attach_function :boxaGetBox, %i[BOXA int int], :BOX
|
||||
attach_function :boxaDestroy, [:pointer], :void
|
||||
attach_function :boxCreate, %i[int int int int], :BOX
|
||||
attach_function :boxDestroy, [:pointer], :void
|
||||
attach_function :boxGetGeometry, %i[BOX pointer pointer pointer pointer], :int
|
||||
attach_function :pixaGetPix, %i[PIXA int int], :PIX
|
||||
attach_function :pixaDestroy, [:pointer], :void
|
||||
attach_function :pixClipRectangle, %i[PIX BOX pointer], :PIX
|
||||
attach_function :ptaCreate, [:int], :PTA
|
||||
attach_function :ptaAddPt, %i[PTA float float], :int
|
||||
attach_function :ptaDestroy, [:pointer], :void
|
||||
attach_function :pixProjectivePtaColor, %i[PIX PTA PTA uint], :PIX
|
||||
attach_function :pixRotateOrth, %i[PIX int], :PIX
|
||||
attach_function :pixOrientDetect, %i[PIX pointer pointer int int], :int
|
||||
attach_function :pixFlipLR, %i[PIX PIX], :PIX
|
||||
attach_function :pixFlipTB, %i[PIX PIX], :PIX
|
||||
attach_function :pixBackgroundNormSimple, %i[PIX PIX PIX], :PIX
|
||||
attach_function :pixGammaTRC, %i[PIX PIX float int int], :PIX
|
||||
attach_function :pixEndianByteSwap, [:PIX], :int
|
||||
attach_function :dewarpSinglePage, %i[PIX int int int int pointer pointer int], :int
|
||||
|
||||
setMsgSeverity(L_SEVERITY_NONE)
|
||||
|
||||
module_function
|
||||
|
||||
def crop_document(image_data, corners, scan: false, rotate: nil, flip_h: false, flip_v: false)
|
||||
pix = read_pix(image_data)
|
||||
|
||||
begin
|
||||
pix32 = checked(pixConvertTo32(pix), 'Failed to convert image to 32bpp')
|
||||
|
||||
begin
|
||||
width = pixGetWidth(pix32)
|
||||
height = pixGetHeight(pix32)
|
||||
|
||||
points = corners.map { |point| [point['x'].to_f * width, point['y'].to_f * height] }
|
||||
|
||||
out_width, out_height = output_size(points, width, height)
|
||||
|
||||
warped = projective_crop(pix32, points, out_width, out_height)
|
||||
|
||||
begin
|
||||
rotate = rotate.nil? ? detect_orientation(warped) : rotate.to_i
|
||||
|
||||
result = transform_result(warped, scan:, rotate:, flip_h:, flip_v:)
|
||||
|
||||
read_bytes(result)
|
||||
ensure
|
||||
destroy_pix(result) if result && !result.equal?(warped)
|
||||
destroy_pix(warped)
|
||||
end
|
||||
ensure
|
||||
destroy_pix(pix32)
|
||||
end
|
||||
ensure
|
||||
destroy_pix(pix)
|
||||
end
|
||||
end
|
||||
|
||||
def detect_document_corners(image_data)
|
||||
pix = read_detect_pix(image_data)
|
||||
|
||||
begin
|
||||
mask = build_page_mask(pix)
|
||||
|
||||
return if mask.nil?
|
||||
|
||||
begin
|
||||
corners = mask_corners(mask)
|
||||
ensure
|
||||
destroy_pix(mask)
|
||||
end
|
||||
|
||||
return if corners.nil? || quad_area(corners) < MIN_QUAD_AREA_RATIO
|
||||
|
||||
corners.map { |x, y| { 'x' => x.round(6), 'y' => y.round(6) } }
|
||||
ensure
|
||||
destroy_pix(pix)
|
||||
end
|
||||
end
|
||||
|
||||
def read_pix(image_data)
|
||||
build_pix(load_image(image_data))
|
||||
end
|
||||
|
||||
def read_detect_pix(image_data)
|
||||
image = load_image(image_data)
|
||||
|
||||
height = (DETECT_WIDTH * image.height / image.width.to_f).round.clamp(8, DETECT_WIDTH * 4)
|
||||
image = image.resize(DETECT_WIDTH / image.width.to_f, vscale: height / image.height.to_f)
|
||||
|
||||
build_pix(image)
|
||||
end
|
||||
|
||||
def build_pix(image)
|
||||
pix = checked(pixCreate(image.width, image.height, 32), 'Failed to read image')
|
||||
|
||||
pixSetSpp(pix, 3)
|
||||
pixGetData(pix).put_bytes(0, image.write_to_memory)
|
||||
|
||||
raise LeptonicaError, 'Failed to read image' unless pixEndianByteSwap(pix).zero?
|
||||
|
||||
pix
|
||||
end
|
||||
|
||||
def load_image(image_data)
|
||||
image = ImageUtils.load_vips(image_data)
|
||||
|
||||
image = image.colourspace(:srgb) if image.interpretation != :srgb
|
||||
image = image.cast(:uchar) if image.format != :uchar
|
||||
image = image.bandjoin(255) unless image.has_alpha?
|
||||
|
||||
image
|
||||
end
|
||||
|
||||
def projective_crop(pix32, points, out_width, out_height)
|
||||
ptas = ptaCreate(4)
|
||||
ptad = ptaCreate(4)
|
||||
|
||||
begin
|
||||
points.each { |x, y| ptaAddPt(ptas, x, y) }
|
||||
|
||||
[[0, 0], [out_width, 0], [out_width, out_height], [0, out_height]].each { |x, y| ptaAddPt(ptad, x, y) }
|
||||
|
||||
warped = checked(pixProjectivePtaColor(pix32, ptad, ptas, 0xffffff00), 'Failed to warp image')
|
||||
|
||||
begin
|
||||
box = boxCreate(0, 0, out_width, out_height)
|
||||
|
||||
begin
|
||||
checked(pixClipRectangle(warped, box, nil), 'Failed to clip image')
|
||||
ensure
|
||||
destroy_box(box)
|
||||
end
|
||||
ensure
|
||||
destroy_pix(warped)
|
||||
end
|
||||
ensure
|
||||
destroy_pta(ptas)
|
||||
destroy_pta(ptad)
|
||||
end
|
||||
end
|
||||
|
||||
def transform_result(warped, scan:, rotate:, flip_h:, flip_v:)
|
||||
steps = []
|
||||
|
||||
steps << ->(pix) { whiten(pix) } if scan
|
||||
steps << ->(pix) { checked(pixFlipLR(nil, pix), 'Failed to flip image') } if flip_h
|
||||
steps << ->(pix) { checked(pixFlipTB(nil, pix), 'Failed to flip image') } if flip_v
|
||||
steps << ->(pix) { checked(pixRotateOrth(pix, rotate / 90), 'Failed to rotate image') } unless rotate.zero?
|
||||
steps << ->(pix) { dewarp(pix) } if scan
|
||||
|
||||
steps.reduce(warped) do |current, step|
|
||||
step.call(current)
|
||||
ensure
|
||||
destroy_pix(current) unless current.equal?(warped)
|
||||
end
|
||||
end
|
||||
|
||||
def output_size(points, width, height)
|
||||
out_width = (distance(points[0], points[1]) + distance(points[3], points[2])) / 2.0
|
||||
out_height = (distance(points[0], points[3]) + distance(points[1], points[2])) / 2.0
|
||||
|
||||
[out_width.round.clamp(8, width * 2), out_height.round.clamp(8, height * 2)]
|
||||
end
|
||||
|
||||
def detect_orientation(pix32)
|
||||
gray = pixConvertTo8(pix32, 0)
|
||||
|
||||
return 0 if gray.null?
|
||||
|
||||
binary_ptr = FFI::MemoryPointer.new(:pointer)
|
||||
result = pixOtsuAdaptiveThreshold(gray, pixGetWidth(gray), pixGetHeight(gray), 0, 0, 0.1, nil, binary_ptr)
|
||||
|
||||
destroy_pix(gray)
|
||||
|
||||
binary = binary_ptr.read_pointer
|
||||
|
||||
return 0 if result != 0 || binary.null?
|
||||
|
||||
upconf_ptr = FFI::MemoryPointer.new(:float)
|
||||
leftconf_ptr = FFI::MemoryPointer.new(:float)
|
||||
result = pixOrientDetect(binary, upconf_ptr, leftconf_ptr, 0, 0)
|
||||
|
||||
destroy_pix(binary)
|
||||
|
||||
return 0 unless result.zero?
|
||||
|
||||
orientation_rotation(upconf_ptr.read_float, leftconf_ptr.read_float)
|
||||
end
|
||||
|
||||
def orientation_rotation(upconf, leftconf)
|
||||
if leftconf >= MIN_ORIENT_CONF && leftconf >= ORIENT_CONF_RATIO * upconf.abs
|
||||
90
|
||||
elsif -upconf >= MIN_ORIENT_CONF && -upconf >= ORIENT_CONF_RATIO * leftconf.abs
|
||||
180
|
||||
elsif -leftconf >= MIN_ORIENT_CONF && -leftconf >= ORIENT_CONF_RATIO * upconf.abs
|
||||
270
|
||||
else
|
||||
0
|
||||
end
|
||||
end
|
||||
|
||||
def dewarp(pix)
|
||||
out_ptr = FFI::MemoryPointer.new(:pointer)
|
||||
|
||||
result = dewarpSinglePage(pix, 0, 1, 1, 0, out_ptr, nil, 0)
|
||||
|
||||
out = out_ptr.read_pointer
|
||||
|
||||
return pixClone(pix) if result != 0 || out.null?
|
||||
|
||||
out
|
||||
end
|
||||
|
||||
def whiten(pix)
|
||||
normalized = checked(pixBackgroundNormSimple(pix, nil, nil), 'Failed to normalize background')
|
||||
|
||||
begin
|
||||
checked(pixGammaTRC(nil, normalized, 1.0, 70, 190), 'Failed to adjust contrast')
|
||||
ensure
|
||||
destroy_pix(normalized)
|
||||
end
|
||||
end
|
||||
|
||||
def read_bytes(pix)
|
||||
width = pixGetWidth(pix)
|
||||
height = pixGetHeight(pix)
|
||||
|
||||
raise LeptonicaError, 'Failed to read pixels' unless pixEndianByteSwap(pix).zero?
|
||||
|
||||
[pixGetData(pix).read_bytes(width * height * 4), width, height]
|
||||
end
|
||||
|
||||
def build_page_mask(pix)
|
||||
gray = checked(pixConvertTo8(pix, 0), 'Failed to convert image to grayscale')
|
||||
|
||||
begin
|
||||
binary_ptr = FFI::MemoryPointer.new(:pointer)
|
||||
|
||||
result = pixOtsuAdaptiveThreshold(gray, pixGetWidth(gray), pixGetHeight(gray), 0, 0, 0.1,
|
||||
nil, binary_ptr)
|
||||
|
||||
return if result != 0 || binary_ptr.read_pointer.null?
|
||||
|
||||
binary = binary_ptr.read_pointer
|
||||
|
||||
begin
|
||||
clean_mask(binary)
|
||||
ensure
|
||||
destroy_pix(binary)
|
||||
end
|
||||
ensure
|
||||
destroy_pix(gray)
|
||||
end
|
||||
end
|
||||
|
||||
def clean_mask(binary)
|
||||
inverted = checked(pixInvert(nil, binary), 'Failed to invert mask')
|
||||
|
||||
begin
|
||||
closed = checked(pixCloseBrick(nil, inverted, 5, 5), 'Failed to close mask')
|
||||
|
||||
begin
|
||||
checked(pixOpenBrick(nil, closed, 3, 3), 'Failed to open mask')
|
||||
ensure
|
||||
destroy_pix(closed)
|
||||
end
|
||||
ensure
|
||||
destroy_pix(inverted)
|
||||
end
|
||||
end
|
||||
|
||||
def mask_corners(mask)
|
||||
width = pixGetWidth(mask)
|
||||
height = pixGetHeight(mask)
|
||||
|
||||
pixels = read_mask_pixels(mask)
|
||||
|
||||
return if pixels.empty?
|
||||
|
||||
bounds = largest_component_bounds(mask)
|
||||
|
||||
if bounds
|
||||
box_x, box_y, box_w, box_h = bounds
|
||||
|
||||
pixels = pixels.select do |x, y|
|
||||
x.between?(box_x, box_x + box_w - 1) && y.between?(box_y, box_y + box_h - 1)
|
||||
end
|
||||
|
||||
return if pixels.empty?
|
||||
end
|
||||
|
||||
image_corners = [[0, 0], [width - 1, 0], [width - 1, height - 1], [0, height - 1]]
|
||||
|
||||
corners = image_corners.map do |corner_x, corner_y|
|
||||
pixels.min_by { |x, y| (x - corner_x).abs + (y - corner_y).abs }
|
||||
end
|
||||
|
||||
return if corners.uniq.size < 4
|
||||
|
||||
corners.map { |x, y| [x / width.to_f, y / height.to_f] }
|
||||
end
|
||||
|
||||
def largest_component_bounds(mask)
|
||||
pixa_ptr = FFI::MemoryPointer.new(:pointer)
|
||||
boxa = pixConnComp(mask, pixa_ptr, 8)
|
||||
|
||||
return if boxa.null?
|
||||
|
||||
pixa = pixa_ptr.read_pointer
|
||||
|
||||
begin
|
||||
geometry = Array.new(4) { FFI::MemoryPointer.new(:int) }
|
||||
|
||||
bounds = nil
|
||||
best_area = 0
|
||||
|
||||
boxaGetCount(boxa).times do |index|
|
||||
box = boxaGetBox(boxa, index, L_CLONE)
|
||||
|
||||
next if box.null?
|
||||
|
||||
boxGetGeometry(box, *geometry)
|
||||
|
||||
box_x, box_y, box_w, box_h = geometry.map(&:read_int)
|
||||
|
||||
if box_w * box_h > best_area
|
||||
best_area = box_w * box_h
|
||||
bounds = [box_x, box_y, box_w, box_h]
|
||||
end
|
||||
|
||||
destroy_box(box)
|
||||
end
|
||||
|
||||
bounds
|
||||
ensure
|
||||
destroy_pixa(pixa)
|
||||
destroy_boxa(boxa)
|
||||
end
|
||||
end
|
||||
|
||||
def read_mask_pixels(pix)
|
||||
width = pixGetWidth(pix)
|
||||
height = pixGetHeight(pix)
|
||||
wpl = pixGetWpl(pix)
|
||||
|
||||
raise LeptonicaError, 'Failed to read mask' unless pixEndianByteSwap(pix).zero?
|
||||
|
||||
data = pixGetData(pix).read_bytes(wpl * 4 * height)
|
||||
|
||||
pixEndianByteSwap(pix)
|
||||
|
||||
pixels = []
|
||||
|
||||
height.times do |y|
|
||||
row_offset = y * wpl * 4
|
||||
|
||||
width.times do |x|
|
||||
byte = data.getbyte(row_offset + (x / 8))
|
||||
|
||||
pixels << [x, y] if byte.anybits?(0x80 >> (x % 8))
|
||||
end
|
||||
end
|
||||
|
||||
pixels
|
||||
end
|
||||
|
||||
def quad_area(corners)
|
||||
area = 0.0
|
||||
|
||||
corners.each_with_index do |(x1, y1), index|
|
||||
x2, y2 = corners[(index + 1) % 4]
|
||||
|
||||
area += (x1 * y2) - (x2 * y1)
|
||||
end
|
||||
|
||||
(area / 2.0).abs
|
||||
end
|
||||
|
||||
def distance(point_a, point_b)
|
||||
Math.sqrt(((point_a[0] - point_b[0])**2) + ((point_a[1] - point_b[1])**2))
|
||||
end
|
||||
|
||||
def checked(pix, message)
|
||||
raise LeptonicaError, message if pix.nil? || pix.null?
|
||||
|
||||
pix
|
||||
end
|
||||
|
||||
def destroy_pix(pix)
|
||||
return if pix.nil? || pix.null?
|
||||
|
||||
pix_ptr = FFI::MemoryPointer.new(:pointer)
|
||||
pix_ptr.write_pointer(pix)
|
||||
|
||||
pixDestroy(pix_ptr)
|
||||
end
|
||||
|
||||
def destroy_pta(pta)
|
||||
return if pta.nil? || pta.null?
|
||||
|
||||
pta_ptr = FFI::MemoryPointer.new(:pointer)
|
||||
pta_ptr.write_pointer(pta)
|
||||
|
||||
ptaDestroy(pta_ptr)
|
||||
end
|
||||
|
||||
def destroy_box(box)
|
||||
return if box.nil? || box.null?
|
||||
|
||||
box_ptr = FFI::MemoryPointer.new(:pointer)
|
||||
box_ptr.write_pointer(box)
|
||||
|
||||
boxDestroy(box_ptr)
|
||||
end
|
||||
|
||||
def destroy_boxa(boxa)
|
||||
return if boxa.nil? || boxa.null?
|
||||
|
||||
boxa_ptr = FFI::MemoryPointer.new(:pointer)
|
||||
boxa_ptr.write_pointer(boxa)
|
||||
|
||||
boxaDestroy(boxa_ptr)
|
||||
end
|
||||
|
||||
def destroy_pixa(pixa)
|
||||
return if pixa.nil? || pixa.null?
|
||||
|
||||
pixa_ptr = FFI::MemoryPointer.new(:pointer)
|
||||
pixa_ptr.write_pointer(pixa)
|
||||
|
||||
pixaDestroy(pixa_ptr)
|
||||
end
|
||||
end
|
||||
@ -0,0 +1,125 @@
|
||||
# frozen_string_literal: true
|
||||
|
||||
module Templates
|
||||
module BuildImagePagePdf
|
||||
InvalidPng = Class.new(StandardError)
|
||||
|
||||
PNG_SIGNATURE = "\x89PNG\r\n\x1a\n".b
|
||||
|
||||
HEADER = "%PDF-1.4\n"
|
||||
CATALOG_OBJECT = '<< /Type /Catalog /Pages 2 0 R >>'
|
||||
PAGES_OBJECT = '<< /Type /Pages /Kids [ 3 0 R ] /Count 1 >>'
|
||||
|
||||
PAGE_OBJECT_TEMPLATE =
|
||||
'<< /Type /Page /Parent 2 0 R /MediaBox [ 0 0 %<page_width>s %<page_height>s ] ' \
|
||||
'/Resources << /XObject << /Im0 4 0 R >> >> /Contents 5 0 R >>'
|
||||
|
||||
IMAGE_DICT_TEMPLATE =
|
||||
'<< /Type /XObject /Subtype /Image /Width %<width>d /Height %<height>d ' \
|
||||
'/BitsPerComponent %<bit_depth>d /ColorSpace %<color_space>s /Filter /FlateDecode ' \
|
||||
'/DecodeParms << /Predictor 15 /Colors %<colors>d /BitsPerComponent %<bit_depth>d ' \
|
||||
'/Columns %<width>d >> /Length %<length>d >>'
|
||||
|
||||
CONTENTS_DICT_TEMPLATE = '<< /Length %<length>d >>'
|
||||
CONTENTS_TEMPLATE = "q\n%<image_width>s 0 0 %<image_height>s %<image_x>s %<image_y>s cm\n/Im0 Do\nQ"
|
||||
INDEXED_COLOR_SPACE_TEMPLATE = '[ /Indexed /DeviceRGB %<high_value>d <%<palette>s> ]'
|
||||
STREAM_OBJECT_TEMPLATE = "%<dict>s\nstream\n%<data>s\nendstream".b
|
||||
OBJECT_TEMPLATE = "%<number>d 0 obj\n%<object>s\nendobj\n".b
|
||||
XREF_HEADER_TEMPLATE = "xref\n0 %<size>d\n0000000000 65535 f \n"
|
||||
XREF_ENTRY_TEMPLATE = "%<offset>010d 00000 n \n"
|
||||
TRAILER_TEMPLATE = "trailer\n<< /Size %<size>d /Root 1 0 R >>\nstartxref\n%<xref_offset>d\n%%%%EOF"
|
||||
|
||||
module_function
|
||||
|
||||
def call(png_data, page_width:, page_height:, image_box: nil)
|
||||
png = parse_png(png_data)
|
||||
|
||||
raise InvalidPng, 'interlaced png is not supported' unless png[:interlace].zero?
|
||||
|
||||
color_space, colors =
|
||||
case png[:color_type]
|
||||
when 0 then ['/DeviceGray', 1]
|
||||
when 2 then ['/DeviceRGB', 3]
|
||||
when 3
|
||||
raise InvalidPng, 'missing palette' if png[:palette].nil?
|
||||
|
||||
[format(INDEXED_COLOR_SPACE_TEMPLATE,
|
||||
high_value: (png[:palette].bytesize / 3) - 1,
|
||||
palette: png[:palette].unpack1('H*')), 1]
|
||||
else
|
||||
raise InvalidPng, "unsupported color type #{png[:color_type]}"
|
||||
end
|
||||
|
||||
build_pdf(png, color_space, colors,
|
||||
[page_width, page_height].map { |value| value.round(4) },
|
||||
(image_box || [0, 0, page_width, page_height]).map { |value| value.round(4) })
|
||||
end
|
||||
|
||||
def parse_png(data)
|
||||
raise InvalidPng, 'not a png' unless data.start_with?(PNG_SIGNATURE)
|
||||
|
||||
ihdr = nil
|
||||
palette = nil
|
||||
idat = +''.b
|
||||
pos = 8
|
||||
|
||||
while pos + 8 <= data.bytesize
|
||||
length = data.byteslice(pos, 4).unpack1('N')
|
||||
type = data.byteslice(pos + 4, 4)
|
||||
|
||||
case type
|
||||
when 'IHDR' then ihdr = data.byteslice(pos + 8, length)
|
||||
when 'PLTE' then palette = data.byteslice(pos + 8, length)
|
||||
when 'tRNS' then raise InvalidPng, 'transparency is not supported'
|
||||
when 'IDAT' then idat << data.byteslice(pos + 8, length)
|
||||
when 'IEND' then break
|
||||
end
|
||||
|
||||
pos += 12 + length
|
||||
end
|
||||
|
||||
raise InvalidPng, 'missing image data' if ihdr.nil? || ihdr.bytesize < 13 || idat.empty?
|
||||
|
||||
width, height, bit_depth, color_type, _compression, _filter, interlace = ihdr.unpack('N2C5')
|
||||
|
||||
{ width:, height:, bit_depth:, color_type:, interlace:, palette:, idat: }
|
||||
end
|
||||
|
||||
def build_pdf(png, color_space, colors, page_size, image_box)
|
||||
page_width, page_height = page_size
|
||||
image_x, image_y, image_width, image_height = image_box
|
||||
|
||||
contents = format(CONTENTS_TEMPLATE, image_x:, image_y:, image_width:, image_height:)
|
||||
|
||||
image_dict = format(IMAGE_DICT_TEMPLATE,
|
||||
width: png[:width], height: png[:height], bit_depth: png[:bit_depth],
|
||||
color_space:, colors:, length: png[:idat].bytesize)
|
||||
|
||||
objects = [
|
||||
CATALOG_OBJECT,
|
||||
PAGES_OBJECT,
|
||||
format(PAGE_OBJECT_TEMPLATE, page_width:, page_height:),
|
||||
format(STREAM_OBJECT_TEMPLATE, dict: image_dict, data: png[:idat]),
|
||||
format(STREAM_OBJECT_TEMPLATE, dict: format(CONTENTS_DICT_TEMPLATE, length: contents.bytesize),
|
||||
data: contents)
|
||||
]
|
||||
|
||||
pdf = +HEADER.b
|
||||
offsets = []
|
||||
|
||||
objects.each_with_index do |object, index|
|
||||
offsets << pdf.bytesize
|
||||
|
||||
pdf << format(OBJECT_TEMPLATE, number: index + 1, object:)
|
||||
end
|
||||
|
||||
xref_offset = pdf.bytesize
|
||||
|
||||
pdf << format(XREF_HEADER_TEMPLATE, size: objects.size + 1).b
|
||||
|
||||
offsets.each { |offset| pdf << format(XREF_ENTRY_TEMPLATE, offset:).b }
|
||||
|
||||
pdf << format(TRAILER_TEMPLATE, size: objects.size + 1, xref_offset:).b
|
||||
end
|
||||
end
|
||||
end
|
||||
@ -0,0 +1,69 @@
|
||||
# frozen_string_literal: true
|
||||
|
||||
module Templates
|
||||
module CreateDocumentCrop
|
||||
MAX_SCAN_SIZE = 1400
|
||||
|
||||
module_function
|
||||
|
||||
def call(template, attachment, params)
|
||||
scan = params[:scan]
|
||||
|
||||
bytes, width, height = Leptonica.crop_document(attachment.download, params[:corners].map(&:to_h),
|
||||
scan:,
|
||||
rotate: params[:rotate]&.to_i,
|
||||
flip_h: params[:flip_h],
|
||||
flip_v: params[:flip_v])
|
||||
|
||||
image = load_image(bytes, width, height)
|
||||
image = pad_scan_image(image, template.account) if scan
|
||||
|
||||
data = scan ? encode_png(image) : encode_jpeg(image)
|
||||
|
||||
create_document!(template, attachment, data, scan)
|
||||
end
|
||||
|
||||
def create_document!(template, attachment, data, scan)
|
||||
blob = ActiveStorage::Blob.create_and_upload!(
|
||||
io: StringIO.new(data),
|
||||
filename: "#{attachment.filename.base}.#{scan ? 'png' : 'jpg'}",
|
||||
metadata: { identified: true, analyzed: true },
|
||||
content_type: scan ? 'image/png' : 'image/jpeg'
|
||||
)
|
||||
|
||||
document = template.documents.create!(blob:)
|
||||
|
||||
Templates::ProcessDocument.call(document, data)
|
||||
|
||||
document
|
||||
end
|
||||
|
||||
def load_image(bytes, width, height)
|
||||
Vips::Image.new_from_memory_copy(bytes, width, height, 4, :uchar)
|
||||
.extract_band(0, n: 3)
|
||||
.copy(interpretation: :srgb)
|
||||
end
|
||||
|
||||
def pad_scan_image(image, account)
|
||||
scale = MAX_SCAN_SIZE / [image.width, image.height].max.to_f
|
||||
image = image.resize(scale) if scale < 1
|
||||
|
||||
base_size = Templates::ModifyDocuments.default_page_size(account)
|
||||
page_width, page_height = image.width > image.height ? base_size.reverse : base_size
|
||||
|
||||
target_width = [image.width, (image.height * page_width / page_height.to_f).round].max
|
||||
target_height = [image.height, (image.width * page_height / page_width.to_f).round].max
|
||||
|
||||
image.gravity('centre', target_width, target_height, extend: :background, background: 255)
|
||||
end
|
||||
|
||||
def encode_png(image)
|
||||
image.write_to_buffer(Templates::ProcessDocument::FORMAT,
|
||||
compression: 6, filter: 0, bitdepth: 4, palette: true, dither: 0, strip: true)
|
||||
end
|
||||
|
||||
def encode_jpeg(image)
|
||||
image.write_to_buffer('.jpg', Q: 90, strip: true)
|
||||
end
|
||||
end
|
||||
end
|
||||
@ -0,0 +1,505 @@
|
||||
# frozen_string_literal: true
|
||||
|
||||
module Templates
|
||||
module ModifyDocuments
|
||||
InvalidLayout = Class.new(StandardError)
|
||||
|
||||
A4_SIZE = [595, 842].freeze
|
||||
LETTER_SIZE = [612, 792].freeze
|
||||
PAGE_SIZE_TOLERANCE = 6
|
||||
SCAN_WHITE_THRESHOLD = 220
|
||||
SCAN_WHITE_FRACTION = 0.6
|
||||
ANNOTATIONS_SIZE_LIMIT = 6.megabytes
|
||||
ROTATIONS = [0, 90, 180, 270].freeze
|
||||
RECT_KEYS = %w[x y w h].freeze
|
||||
|
||||
module_function
|
||||
|
||||
def call(template, documents_layout)
|
||||
layout_attachment_uuids =
|
||||
documents_layout.flat_map { |e| [e['attachment_uuid'], e['pages'].to_a.pluck('attachment_uuid')] }.flatten.uniq
|
||||
|
||||
attachments_index =
|
||||
template.documents_attachments.preload(:blob).where(uuid: layout_attachment_uuids).index_by(&:uuid)
|
||||
|
||||
validate_layout!(template, documents_layout, attachments_index)
|
||||
|
||||
mapping = {}
|
||||
|
||||
new_schema = build_new_schema(template, documents_layout, attachments_index, mapping)
|
||||
|
||||
template.schema.each_with_index do |item, index|
|
||||
new_schema.insert([index, new_schema.size].min, item) if item['dynamic']
|
||||
end
|
||||
|
||||
removed_field_uuids = remap_fields(template, mapping)
|
||||
|
||||
template.schema = new_schema
|
||||
|
||||
remove_conditions(template.fields, removed_field_uuids)
|
||||
remove_conditions(template.schema, removed_field_uuids)
|
||||
|
||||
template.save!
|
||||
|
||||
template
|
||||
end
|
||||
|
||||
def build_new_schema(template, documents_layout, attachments_index, mapping)
|
||||
sources = {}
|
||||
|
||||
Pdfium.with_instance do
|
||||
documents_layout.filter_map do |entry|
|
||||
schema_item =
|
||||
template.schema.find { |item| item['attachment_uuid'] == entry['attachment_uuid'] } ||
|
||||
{ 'attachment_uuid' => entry['attachment_uuid'],
|
||||
'name' => attachments_index[entry['attachment_uuid']].filename.base }
|
||||
|
||||
next if entry['pages'].blank?
|
||||
|
||||
if unchanged_entry?(entry, attachments_index)
|
||||
entry['pages'].each_with_index do |ref, index|
|
||||
add_page_mapping(mapping, ref, [ref['attachment_uuid'], index])
|
||||
end
|
||||
|
||||
schema_item
|
||||
else
|
||||
document = if standalone_image_entry?(entry, attachments_index)
|
||||
build_image_document(template, entry, attachments_index)
|
||||
else
|
||||
build_document(template, schema_item, entry['pages'], attachments_index, sources)
|
||||
end
|
||||
|
||||
entry['pages'].each_with_index do |ref, index|
|
||||
add_page_mapping(mapping, ref, [document.uuid, index, ref['rotate'].to_i % 360])
|
||||
end
|
||||
|
||||
schema_item.except('google_drive_file_id').merge('attachment_uuid' => document.uuid)
|
||||
end
|
||||
end
|
||||
ensure
|
||||
sources.each_value(&:close)
|
||||
end
|
||||
end
|
||||
|
||||
def add_page_mapping(mapping, ref, target)
|
||||
mapping[[ref['attachment_uuid'], ref['page']]] = target
|
||||
|
||||
replaced = ref['replaced_page']
|
||||
|
||||
mapping[[replaced['attachment_uuid'], replaced['page']]] = target if replaced
|
||||
end
|
||||
|
||||
def validate_layout!(template, documents_layout, attachments_index)
|
||||
raise InvalidLayout if documents_layout.blank?
|
||||
raise InvalidLayout if documents_layout.all? { |entry| entry['pages'].blank? }
|
||||
|
||||
dynamic_uuids = template.schema.select { |item| item['dynamic'] }.pluck('attachment_uuid')
|
||||
non_dynamic_uuids = template.schema.pluck('attachment_uuid') - dynamic_uuids
|
||||
layout_uuids = documents_layout.pluck('attachment_uuid')
|
||||
|
||||
raise InvalidLayout if layout_uuids.uniq.size != layout_uuids.size
|
||||
raise InvalidLayout if (non_dynamic_uuids - layout_uuids).any?
|
||||
raise InvalidLayout if layout_uuids.intersect?(dynamic_uuids)
|
||||
raise InvalidLayout if layout_uuids.any? { |uuid| attachments_index[uuid].nil? }
|
||||
|
||||
refs = documents_layout.flat_map { |entry| entry['pages'].to_a }
|
||||
|
||||
refs.each { |ref| validate_ref!(ref, attachments_index) }
|
||||
|
||||
ref_keys = refs.map { |ref| [ref['attachment_uuid'], ref['page']] }
|
||||
|
||||
raise InvalidLayout if ref_keys.uniq.size != ref_keys.size
|
||||
end
|
||||
|
||||
def validate_ref!(ref, attachments_index)
|
||||
attachment = attachments_index[ref['attachment_uuid']]
|
||||
|
||||
raise InvalidLayout if attachment.nil?
|
||||
|
||||
raise InvalidLayout unless ref['page'].is_a?(Integer) &&
|
||||
ref['page'] >= 0 && ref['page'] < page_count(attachment)
|
||||
raise InvalidLayout unless ref['rotate'].nil? || ROTATIONS.include?(ref['rotate'])
|
||||
|
||||
validate_redact!(ref['redact'])
|
||||
end
|
||||
|
||||
def validate_redact!(redact)
|
||||
return if redact.nil?
|
||||
|
||||
raise InvalidLayout unless redact.is_a?(Array)
|
||||
|
||||
redact.each do |rect|
|
||||
valid = RECT_KEYS.all? { |key| rect[key].is_a?(Numeric) && rect[key].to_f.between?(-1, 2) }
|
||||
|
||||
raise InvalidLayout unless valid
|
||||
end
|
||||
end
|
||||
|
||||
def page_count(attachment)
|
||||
if attachment.content_type == Templates::ProcessDocument::PDF_CONTENT_TYPE
|
||||
attachment.metadata.dig('pdf', 'number_of_pages').to_i
|
||||
else
|
||||
1
|
||||
end
|
||||
end
|
||||
|
||||
def page_objects(attachment, page_number)
|
||||
Pdfium::Document.open_bytes(attachment.download) do |doc|
|
||||
page = doc.get_page(page_number)
|
||||
|
||||
page.flatten
|
||||
page.unwrap_form_objects
|
||||
page.rotate
|
||||
|
||||
text_nodes = page.text_nodes.map do |node|
|
||||
{ 'text' => node.content, 'x' => node.x, 'y' => node.y, 'w' => node.w, 'h' => node.h }
|
||||
end
|
||||
|
||||
image_nodes = page.image_nodes.map do |node|
|
||||
{ 'x' => node.x, 'y' => node.y, 'w' => node.w, 'h' => node.h }
|
||||
end
|
||||
|
||||
{ 'text_nodes' => text_nodes, 'image_nodes' => image_nodes }
|
||||
end
|
||||
end
|
||||
|
||||
def unchanged_entry?(entry, attachments_index)
|
||||
uuid = entry['attachment_uuid']
|
||||
|
||||
entry['pages'].size == page_count(attachments_index[uuid]) &&
|
||||
entry['pages'].each_with_index.all? do |ref, index|
|
||||
ref['attachment_uuid'] == uuid && ref['page'] == index && ref['rotate'].to_i.zero? && ref['redact'].blank?
|
||||
end
|
||||
end
|
||||
|
||||
def build_document(template, schema_item, page_refs, attachments_index, sources)
|
||||
with_images = page_refs.any? { |ref| attachments_index[ref['attachment_uuid']].image? }
|
||||
|
||||
pdf_size = entry_pdf_page_size(page_refs, attachments_index, sources) if with_images
|
||||
default_size = default_page_size(template.account) if with_images
|
||||
|
||||
io =
|
||||
Pdfium::Document.create do |dest|
|
||||
insert_index = 0
|
||||
|
||||
build_page_runs(page_refs, attachments_index).each do |uuid, pages_range, length, image_ops|
|
||||
redact, rotate = image_ops
|
||||
|
||||
attachment = attachments_index[uuid]
|
||||
key = attachment.image? ? [uuid, image_ops, pdf_size, default_size] : [uuid, image_ops]
|
||||
|
||||
source = sources[key] ||= open_or_build_pdf(attachment, redact:, rotate:, pdf_size:, default_size:)
|
||||
|
||||
dest.import_pages(source, pages: pages_range, index: insert_index)
|
||||
|
||||
insert_index += length
|
||||
end
|
||||
|
||||
apply_pdf_page_ops(dest, page_refs, attachments_index)
|
||||
|
||||
dest.save(StringIO.new)
|
||||
end
|
||||
|
||||
save_document(template, attachments_index[schema_item['attachment_uuid']], io.string)
|
||||
end
|
||||
|
||||
def apply_pdf_page_ops(dest, page_refs, attachments_index)
|
||||
page_refs.each_with_index do |ref, index|
|
||||
next if attachments_index[ref['attachment_uuid']].image?
|
||||
|
||||
rotate = ref['rotate'].to_i % 360
|
||||
redact = ref['redact'].to_a
|
||||
|
||||
next if rotate.zero? && redact.blank?
|
||||
|
||||
page = dest.get_page(index)
|
||||
|
||||
page.redact(redact) { |bitmap, pixel_rects| encode_redacted_image_jpeg(bitmap, pixel_rects) } if redact.present?
|
||||
|
||||
next if rotate.zero?
|
||||
|
||||
page.rotation = (page.rotation + (rotate / 90)) % 4
|
||||
|
||||
page.rotate
|
||||
end
|
||||
end
|
||||
|
||||
def build_page_runs(page_refs, attachments_index)
|
||||
runs = []
|
||||
|
||||
page_refs.each do |ref|
|
||||
image_ops =
|
||||
if attachments_index[ref['attachment_uuid']].image?
|
||||
[ref['redact'].presence, ref['rotate'].to_i % 360].presence
|
||||
end
|
||||
|
||||
if runs.last && runs.last[0] == ref['attachment_uuid'] && runs.last[2] == image_ops
|
||||
runs.last[1] << ref['page']
|
||||
else
|
||||
runs << [ref['attachment_uuid'], [ref['page']], image_ops]
|
||||
end
|
||||
end
|
||||
|
||||
runs.map do |uuid, pages, image_ops|
|
||||
[uuid, pages.map { |page| page + 1 }.join(','), pages.size, image_ops]
|
||||
end
|
||||
end
|
||||
|
||||
def standalone_image_entry?(entry, attachments_index)
|
||||
entry['pages'].size == 1 && attachments_index[entry['pages'].first['attachment_uuid']].image?
|
||||
end
|
||||
|
||||
def build_image_document(template, entry, attachments_index)
|
||||
ref = entry['pages'].first
|
||||
attachment = attachments_index[ref['attachment_uuid']]
|
||||
|
||||
return attachment if ref['redact'].blank? && (ref['rotate'].to_i % 360).zero?
|
||||
|
||||
image = ImageUtils.load_vips(attachment.download, content_type: attachment.content_type, autorot: true)
|
||||
image = draw_image_redaction(image, ref['redact']) if ref['redact'].present?
|
||||
image = rotate_vips_image(image, ref['rotate'].to_i % 360)
|
||||
|
||||
extension, format_args =
|
||||
if attachment.content_type == 'image/jpeg'
|
||||
['.jpg', { Q: 90 }]
|
||||
else
|
||||
['.png', {}]
|
||||
end
|
||||
|
||||
data = image.write_to_buffer(extension, **format_args)
|
||||
|
||||
blob = ActiveStorage::Blob.create_and_upload!(
|
||||
io: StringIO.new(data),
|
||||
filename: attachment.filename.to_s,
|
||||
metadata: { identified: true, analyzed: true },
|
||||
content_type: attachment.content_type
|
||||
)
|
||||
|
||||
document = template.documents.create!(blob:)
|
||||
|
||||
Templates::ProcessDocument.call(document, data)
|
||||
end
|
||||
|
||||
def rotate_vips_image(image, rotate)
|
||||
case rotate
|
||||
when 90 then image.rot90
|
||||
when 180 then image.rot180
|
||||
when 270 then image.rot270
|
||||
else image
|
||||
end
|
||||
end
|
||||
|
||||
def encode_redacted_image_jpeg(bitmap, pixel_rects)
|
||||
image = Vips::Image.new_from_memory_copy(bitmap[:data], bitmap[:width], bitmap[:height], bitmap[:bands], :uchar)
|
||||
|
||||
image =
|
||||
case bitmap[:format]
|
||||
when :bgr, :bgrx then image[2].bandjoin([image[1], image[0]])
|
||||
when :bgra then image[2].bandjoin([image[1], image[0], image[3]]).flatten(background: 255)
|
||||
else image
|
||||
end
|
||||
|
||||
ink = Array.new(image.bands, 0.0)
|
||||
|
||||
pixel_rects.each do |left, top, rect_width, rect_height|
|
||||
image = image.draw_rect(ink, left, top, rect_width, rect_height, fill: true)
|
||||
end
|
||||
|
||||
image.write_to_buffer('.jpg', Q: 50, strip: true)
|
||||
end
|
||||
|
||||
def draw_image_redaction(image, rects)
|
||||
ink = Array.new(image.bands) { |band| band == 3 ? 255.0 : 0.0 }
|
||||
|
||||
rects.each do |rect|
|
||||
left = (rect['x'].to_f * image.width).floor.clamp(0, image.width - 1)
|
||||
top = (rect['y'].to_f * image.height).floor.clamp(0, image.height - 1)
|
||||
rect_width = (rect['w'].to_f * image.width).ceil.clamp(1, image.width - left)
|
||||
rect_height = (rect['h'].to_f * image.height).ceil.clamp(1, image.height - top)
|
||||
|
||||
image = image.draw_rect(ink, left, top, rect_width, rect_height, fill: true)
|
||||
end
|
||||
|
||||
image
|
||||
end
|
||||
|
||||
def open_or_build_pdf(attachment, redact: nil, rotate: nil, pdf_size: nil, default_size: nil)
|
||||
data =
|
||||
if attachment.image?
|
||||
build_pdf_data_from_image(attachment, pdf_size, default_size, redact:, rotate:)
|
||||
else
|
||||
attachment.download
|
||||
end
|
||||
|
||||
Pdfium::Document.open_bytes(data)
|
||||
end
|
||||
|
||||
def entry_pdf_page_size(page_refs, attachments_index, sources)
|
||||
pdf_ref = page_refs.rfind { |ref| !attachments_index[ref['attachment_uuid']].image? }
|
||||
|
||||
return if pdf_ref.nil?
|
||||
|
||||
uuid = pdf_ref['attachment_uuid']
|
||||
source = sources[[uuid, nil]] ||= open_or_build_pdf(attachments_index[uuid])
|
||||
page = source.get_page(pdf_ref['page'])
|
||||
|
||||
width = page.width
|
||||
height = page.height
|
||||
|
||||
width, height = height, width unless (pdf_ref['rotate'].to_i % 180).zero?
|
||||
|
||||
size = standard_page_size(width, height)
|
||||
|
||||
return if size.nil?
|
||||
|
||||
width > height ? size.reverse : size
|
||||
end
|
||||
|
||||
def standard_page_size(width, height)
|
||||
[LETTER_SIZE, A4_SIZE].find do |size|
|
||||
[size, size.reverse].any? do |(base_width, base_height)|
|
||||
(width - base_width).abs <= PAGE_SIZE_TOLERANCE && (height - base_height).abs <= PAGE_SIZE_TOLERANCE
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
def default_page_size(account)
|
||||
abbr = TimeUtils.timezone_abbr(account.timezone, Time.current.beginning_of_year)
|
||||
|
||||
abbr.in?(TimeUtils::US_TIMEZONES) ? LETTER_SIZE : A4_SIZE
|
||||
end
|
||||
|
||||
def orientation_match?(size, image)
|
||||
return false if size.nil?
|
||||
|
||||
(size[0] > size[1]) == (image.width > image.height)
|
||||
end
|
||||
|
||||
def aspect_page_size(image)
|
||||
short, long = [image.width, image.height].minmax
|
||||
|
||||
[LETTER_SIZE, A4_SIZE].find do |(page_short, page_long)|
|
||||
((short * page_long) - (long * page_short)).abs <= page_short
|
||||
end
|
||||
end
|
||||
|
||||
def scanned_page_image?(image)
|
||||
counts = image.colourspace('b-w').hist_find.to_a[0].flatten
|
||||
|
||||
counts[SCAN_WHITE_THRESHOLD..].sum >= counts.sum * SCAN_WHITE_FRACTION
|
||||
end
|
||||
|
||||
def build_pdf_data_from_image(attachment, pdf_size, default_size, redact: nil, rotate: nil)
|
||||
image = ImageUtils.load_vips(attachment.preview_images.first.download)
|
||||
|
||||
image = image.colourspace(:srgb) if image.interpretation != :srgb
|
||||
image = image.flatten(background: 255) if image.has_alpha?
|
||||
image = draw_image_redaction(image, redact) if redact.present?
|
||||
image = rotate_vips_image(image, rotate.to_i)
|
||||
|
||||
bitdepth = 2**image.stats.to_a[1..3].pluck(2).uniq.size
|
||||
|
||||
png_data = image.write_to_buffer(Templates::ProcessDocument::FORMAT,
|
||||
compression: 6, filter: 0, bitdepth:, palette: true,
|
||||
Q: Templates::ProcessDocument::Q, dither: 0, strip: true)
|
||||
|
||||
build_image_page_pdf(image, png_data, pdf_size, default_size)
|
||||
end
|
||||
|
||||
def build_image_page_pdf(image, png_data, pdf_size, default_size)
|
||||
pdf_size = nil unless orientation_match?(pdf_size, image)
|
||||
aspect_size = aspect_page_size(image) if pdf_size.nil?
|
||||
|
||||
page_width, page_height =
|
||||
pdf_size ||
|
||||
(aspect_size || default_size).then { |size| image.width > image.height ? size.reverse : size }
|
||||
|
||||
scale = [page_width / image.width.to_f, page_height / image.height.to_f].min
|
||||
|
||||
if pdf_size.nil? && aspect_size.nil? && !scanned_page_image?(image)
|
||||
Templates::BuildImagePagePdf.call(png_data, page_width: image.width * scale,
|
||||
page_height: image.height * scale)
|
||||
else
|
||||
image_width = image.width * scale
|
||||
image_height = image.height * scale
|
||||
|
||||
Templates::BuildImagePagePdf.call(png_data, page_width:, page_height:,
|
||||
image_box: [(page_width - image_width) / 2.0,
|
||||
(page_height - image_height) / 2.0,
|
||||
image_width, image_height])
|
||||
end
|
||||
end
|
||||
|
||||
def save_document(template, old_attachment, data)
|
||||
annotations = data.size < ANNOTATIONS_SIZE_LIMIT ? Templates::BuildAnnotations.call(data) : []
|
||||
sha256 = Base64.urlsafe_encode64(Digest::SHA256.digest(data))
|
||||
|
||||
blob = ActiveStorage::Blob.create_and_upload!(
|
||||
io: StringIO.new(data),
|
||||
filename: "#{old_attachment.filename.base}.pdf",
|
||||
metadata: { identified: true, analyzed: true,
|
||||
pdf: { annotations: }.compact_blank, sha256: }.compact_blank,
|
||||
content_type: Templates::ProcessDocument::PDF_CONTENT_TYPE
|
||||
)
|
||||
|
||||
document = template.documents.create!(blob:)
|
||||
|
||||
Templates::ProcessDocument.call(document, data)
|
||||
end
|
||||
|
||||
def remap_fields(template, mapping)
|
||||
non_dynamic_uuids = template.schema.reject { |item| item['dynamic'] }.pluck('attachment_uuid')
|
||||
|
||||
removed_field_uuids = []
|
||||
|
||||
template.fields = template.fields.filter_map do |field|
|
||||
if field['areas'].present?
|
||||
field['areas'] = field['areas'].filter_map do |area|
|
||||
next area if non_dynamic_uuids.exclude?(area['attachment_uuid'])
|
||||
|
||||
new_uuid, new_page, rotate = mapping[[area['attachment_uuid'], area['page']]]
|
||||
|
||||
next if new_uuid.nil?
|
||||
|
||||
rotate_area(area.merge('attachment_uuid' => new_uuid, 'page' => new_page), rotate.to_i)
|
||||
end
|
||||
|
||||
if field['areas'].blank?
|
||||
removed_field_uuids << field['uuid']
|
||||
|
||||
next
|
||||
end
|
||||
end
|
||||
|
||||
field
|
||||
end
|
||||
|
||||
removed_field_uuids
|
||||
end
|
||||
|
||||
def rotate_area(area, rotate)
|
||||
x, y, w, h = area.values_at('x', 'y', 'w', 'h')
|
||||
|
||||
case rotate
|
||||
when 90
|
||||
area.merge('x' => 1 - y - h, 'y' => x, 'w' => h, 'h' => w)
|
||||
when 180
|
||||
area.merge('x' => 1 - x - w, 'y' => 1 - y - h)
|
||||
when 270
|
||||
area.merge('x' => y, 'y' => 1 - x - w, 'w' => h, 'h' => w)
|
||||
else
|
||||
area
|
||||
end
|
||||
end
|
||||
|
||||
def remove_conditions(items, removed_field_uuids)
|
||||
return if removed_field_uuids.blank?
|
||||
|
||||
items.each do |item|
|
||||
next if item['conditions'].blank?
|
||||
|
||||
item['conditions'] = item['conditions'].reject { |c| removed_field_uuids.include?(c['field_uuid']) }
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
Loading…
Reference in new issue