From f79a109aaa2c89d1462a1299c9e4bd0a0305e115 Mon Sep 17 00:00:00 2001
From: bobzel <zzzman@gmail.com>
Date: Wed, 11 May 2022 13:32:40 -0400
Subject: added cropped images of pdfs

---
 src/client/views/nodes/WebBoxRenderer.js | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

(limited to 'src/client/views/nodes/WebBoxRenderer.js')

diff --git a/src/client/views/nodes/WebBoxRenderer.js b/src/client/views/nodes/WebBoxRenderer.js
index d2b701cf9..d9524dd6e 100644
--- a/src/client/views/nodes/WebBoxRenderer.js
+++ b/src/client/views/nodes/WebBoxRenderer.js
@@ -176,7 +176,7 @@ var ForeignHtmlRenderer = function (styleSheets) {
      * 
      * @returns {Promise<String>}
      */
-    const buildSvgDataUri = async function (webUrl, contentHtml, width, height, scroll) {
+    const buildSvgDataUri = async function (webUrl, contentHtml, width, height, scroll, xoff) {
 
         return new Promise(async function (resolve, reject) {
 
@@ -240,7 +240,7 @@ var ForeignHtmlRenderer = function (styleSheets) {
 
             // build SVG string
             const svg = `<svg xmlns='http://www.w3.org/2000/svg' width='${width}' height='${height}'>
-                        <foreignObject x='0' y='${-scroll}' width='${width}' height='${scroll + height}'>
+                        <foreignObject x='${-xoff}' y='${-scroll}' width='${xoff + width}' height='${scroll + height}'>
                             ${contentRootElemString}
                         </foreignObject>
                 </svg>`;
@@ -259,11 +259,11 @@ var ForeignHtmlRenderer = function (styleSheets) {
      * 
      * @return {Promise<Image>}
      */
-    this.renderToImage = async function (webUrl, html, width, height, scroll) {
+    this.renderToImage = async function (webUrl, html, width, height, scroll, xoff) {
         return new Promise(async function (resolve, reject) {
             const img = new Image();
             console.log("BUILDING SVG for:" + webUrl);
-            img.src = await buildSvgDataUri(webUrl, html, width, height, scroll);
+            img.src = await buildSvgDataUri(webUrl, html, width, height, scroll, xoff);
 
             img.onload = function () {
                 console.log("IMAGE SVG created:" + webUrl);
@@ -279,16 +279,16 @@ var ForeignHtmlRenderer = function (styleSheets) {
      * 
      * @return {Promise<Image>}
      */
-    this.renderToCanvas = async function (webUrl, html, width, height, scroll) {
+    this.renderToCanvas = async function (webUrl, html, width, height, scroll, xoff, oversample) {
         return new Promise(async function (resolve, reject) {
-            const img = await self.renderToImage(webUrl, html, width, height, scroll);
+            const img = await self.renderToImage(webUrl, html, width, height, scroll, xoff);
 
             const canvas = document.createElement('canvas');
-            canvas.width = img.width;
-            canvas.height = img.height;
+            canvas.width = img.width * oversample;
+            canvas.height = img.height * oversample;
 
             const canvasCtx = canvas.getContext('2d');
-            canvasCtx.drawImage(img, 0, 0, img.width, img.height);
+            canvasCtx.drawImage(img, 0, 0, img.width * oversample, img.height * oversample);
 
             resolve(canvas);
         });
@@ -301,9 +301,9 @@ var ForeignHtmlRenderer = function (styleSheets) {
      * 
      * @return {Promise<String>}
      */
-    this.renderToBase64Png = async function (webUrl, html, width, height, scroll) {
+    this.renderToBase64Png = async function (webUrl, html, width, height, scroll, xoff, oversample) {
         return new Promise(async function (resolve, reject) {
-            const canvas = await self.renderToCanvas(webUrl, html, width, height, scroll);
+            const canvas = await self.renderToCanvas(webUrl, html, width, height, scroll, xoff, oversample);
             resolve(canvas.toDataURL('image/png'));
         });
     };
@@ -311,8 +311,8 @@ var ForeignHtmlRenderer = function (styleSheets) {
 };
 
 
-export function CreateImage(webUrl, styleSheets, html, width, height, scroll) {
-    const val = (new ForeignHtmlRenderer(styleSheets)).renderToBase64Png(webUrl, html.replace(/docView-hack/g, 'documentView-hack').replace(/\n/g, "").replace(/<script((?!\/script).)*<\/script>/g, ""), width, height, scroll);
+export function CreateImage(webUrl, styleSheets, html, width, height, scroll, xoff = 0, oversample = 1) {
+    const val = (new ForeignHtmlRenderer(styleSheets)).renderToBase64Png(webUrl, html.replace(/docView-hack/g, 'documentView-hack').replace(/\n/g, "").replace(/<script((?!\/script).)*<\/script>/g, ""), width, height, scroll, xoff, oversample);
     return val;
 }
 
-- 
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