From 596d30bc3f755eaafd413ced7613ace6735458fa Mon Sep 17 00:00:00 2001
From: bob <bcz@cs.brown.edu>
Date: Fri, 10 Jan 2020 16:05:00 -0500
Subject: better working version of pivot viewer

---
 .../CollectionFreeFormLayoutEngines.tsx             | 13 +++++++++----
 .../collectionFreeForm/CollectionFreeFormView.tsx   | 21 +++++++++++++++++----
 2 files changed, 26 insertions(+), 8 deletions(-)

(limited to 'src/client/views/collections/collectionFreeForm')

diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormLayoutEngines.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormLayoutEngines.tsx
index 012115b1f..a965a6cc9 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormLayoutEngines.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormLayoutEngines.tsx
@@ -44,7 +44,7 @@ function toLabel(target: FieldResult<Field>) {
     return String(target);
 }
 
-export function computePivotLayout(poolData: ObservableMap<string, any>, pivotDoc: Doc, childDocs: Doc[], childPairs: { layout: Doc, data?: Doc }[], viewDefsToJSX: (views: any) => ViewDefResult[]) {
+export function computePivotLayout(poolData: ObservableMap<string, any>, pivotDoc: Doc, childDocs: Doc[], childPairs: { layout: Doc, data?: Doc }[], panelDim: number[], viewDefsToJSX: (views: any) => ViewDefResult[]) {
     const pivotAxisWidth = NumCast(pivotDoc.pivotWidth, 200);
     const pivotColumnGroups = new Map<FieldResult<Field>, Doc[]>();
 
@@ -57,9 +57,14 @@ export function computePivotLayout(poolData: ObservableMap<string, any>, pivotDo
     }
 
     const minSize = Array.from(pivotColumnGroups.entries()).reduce((min, pair) => Math.min(min, pair[1].length), Infinity);
-    const numCols = NumCast(pivotDoc.pivotNumColumns, Math.ceil(Math.sqrt(minSize)));
+    let numCols = NumCast(pivotDoc.pivotNumColumns, Math.ceil(Math.sqrt(minSize)));
     const docMap = new Map<Doc, ViewDefBounds>();
     const groupNames: PivotData[] = [];
+    if (panelDim[0] < 2500) numCols = Math.min(5, numCols);
+    if (panelDim[0] < 2000) numCols = Math.min(4, numCols);
+    if (panelDim[0] < 1400) numCols = Math.min(3, numCols);
+    if (panelDim[0] < 1000) numCols = Math.min(2, numCols);
+    if (panelDim[0] < 600) numCols = 1;
 
     const expander = 1.05;
     const gap = .15;
@@ -85,14 +90,14 @@ export function computePivotLayout(poolData: ObservableMap<string, any>, pivotDo
                 wid = layoutDoc.nativeHeight ? (NumCast(layoutDoc.nativeWidth) / NumCast(layoutDoc.nativeHeight)) * pivotAxisWidth : pivotAxisWidth;
             }
             docMap.set(doc, {
-                x: x + xCount * pivotAxisWidth * expander + (pivotAxisWidth - wid) / 2,
+                x: x + xCount * pivotAxisWidth * expander + (pivotAxisWidth - wid) / 2 + (val.length < numCols ? (numCols - val.length) * pivotAxisWidth / 2 : 0),
                 y: -y,
                 width: wid,
                 height: hgt
             });
             xCount++;
             if (xCount >= numCols) {
-                xCount = (pivotAxisWidth - wid) / 2;
+                xCount = 0;
                 y += pivotAxisWidth * expander;
             }
         }
diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
index eb5a074bb..936c4413f 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
@@ -772,7 +772,7 @@ export class CollectionFreeFormView extends CollectionSubView(PanZoomDocument) {
 
     doPivotLayout(poolData: ObservableMap<string, any>) {
         return computePivotLayout(poolData, this.props.Document, this.childDocs,
-            this.childLayoutPairs.filter(pair => this.isCurrent(pair.layout)), this.viewDefsToJSX);
+            this.childLayoutPairs.filter(pair => this.isCurrent(pair.layout)), [this.props.PanelWidth(), this.props.PanelHeight()], this.viewDefsToJSX);
     }
 
     doFreeformLayout(poolData: ObservableMap<string, any>) {
@@ -987,6 +987,11 @@ export class CollectionFreeFormView extends CollectionSubView(PanZoomDocument) {
             </CollectionFreeFormViewPannableContents>
         </MarqueeView>;
     }
+    @computed get contentScaling() {
+        let hscale = this.nativeHeight ? this.props.PanelHeight() / this.nativeHeight : 1;
+        let wscale = this.nativeWidth ? this.props.PanelWidth() / this.nativeWidth : 1;
+        return wscale < hscale ? wscale : hscale;
+    }
     render() {
         TraceMobx();
         // update the actual dimensions of the collection so that they can inquired (e.g., by a minimap)
@@ -998,9 +1003,17 @@ export class CollectionFreeFormView extends CollectionSubView(PanZoomDocument) {
         // otherwise, they are stored in fieldKey.  All annotations to this document are stored in the extension document
         if (!this.extensionDoc) return (null);
         // let lodarea = this.Document[WidthSym]() * this.Document[HeightSym]() / this.props.ScreenToLocalTransform().Scale / this.props.ScreenToLocalTransform().Scale;
-        return <div className={"collectionfreeformview-container"} ref={this.createDropTarget} onWheel={this.onPointerWheel}//pointerEvents: SelectionManager.GetIsDragging() ? "all" : undefined,
-            style={{ pointerEvents: SelectionManager.GetIsDragging() ? "all" : undefined, height: this.isAnnotationOverlay ? (this.props.Document.scrollHeight ? this.Document.scrollHeight : "100%") : this.props.PanelHeight() }}
-            onPointerDown={this.onPointerDown} onPointerMove={this.onCursorMove} onDrop={this.onDrop.bind(this)} onContextMenu={this.onContextMenu} onTouchStart={this.onTouchStart}>
+        return <div className={"collectionfreeformview-container"}
+            ref={this.createDropTarget}
+            onWheel={this.onPointerWheel}//pointerEvents: SelectionManager.GetIsDragging() ? "all" : undefined,
+            onPointerDown={this.onPointerDown} onPointerMove={this.onCursorMove} onDrop={this.onDrop.bind(this)} onContextMenu={this.onContextMenu} onTouchStart={this.onTouchStart}
+            style={{
+                pointerEvents: SelectionManager.GetIsDragging() ? "all" : undefined,
+                transform: this.contentScaling ? `scale(${this.contentScaling})` : "",
+                transformOrigin: this.contentScaling ? "left top" : "",
+                width: this.contentScaling ? `${100 / this.contentScaling}%` : "",
+                height: this.contentScaling ? `${100 / this.contentScaling}%` : this.isAnnotationOverlay ? (this.props.Document.scrollHeight ? this.Document.scrollHeight : "100%") : this.props.PanelHeight()
+            }}>
             {!this.Document.LODdisable && !this.props.active() && !this.props.isAnnotationOverlay && !this.props.annotationsKey && this.props.renderDepth > 0 ? // && this.props.CollectionView && lodarea < NumCast(this.Document.LODarea, 100000) ?
                 this.placeholder : this.marqueeView}
             <CollectionFreeFormOverlayView elements={this.elementFunc} />
-- 
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