From 4bbd92920eb9fc45df6dd14b726e278ddd9aaeca Mon Sep 17 00:00:00 2001
From: Andrii Solianyk <asolianik2015@gmail.com>
Date: Wed, 19 Nov 2025 23:26:01 +0100
Subject: [PATCH] resize works, but not ideal

---
 index.html | 703 ++++++++++++++++++++++++++++++-----------------------
 style.css  |  10 +
 2 files changed, 405 insertions(+), 308 deletions(-)

diff --git a/index.html b/index.html
index 4a8f4a2..2df493f 100644
--- a/index.html
+++ b/index.html
@@ -30,6 +30,8 @@
             <button id="zoom-out">-</button>
         </div>
     </div>
+    <div id="resize-handle" style="position: absolute; display: none; border: 2px dashed #4A90E2; z-index: 10;"></div>
+
     <div class="canvas-container">
         <div id="paper"></div>
     </div>
@@ -38,350 +40,435 @@
     <script src="https://code.jquery.com/ui/1.13.2/jquery-ui.min.js"></script>
     <script src="joint.js"></script>
     <script>
-    let selectedElement = null;
-    let activeElementView = null;
-    let clipboard = null;
-    let zoomLevel = 1.0;
+        let selectedElement = null;
+        let activeElementView = null;
+        let clipboard = null;
+        let zoomLevel = 1.0;
 
-    $(document).ready(function () {
-        //init paper - Start
-        const graph = new joint.dia.Graph();
-        const paper = new joint.dia.Paper({
-            el: $('#paper'),
-            model: graph,
-            width: window.innerWidth,
-            height: window.innerHeight,
-            gridSize: 20,
-        });
-        //init paper - END
-
-        // obwódka i znaczek usuwanie
-        function createToolsView() {
-            return new joint.dia.ToolsView({
-                tools: [
-                    new joint.elementTools.Boundary({
-                        padding: 10,
-                    }),
-                    new joint.elementTools.Remove({
-                        focusOpacity: 0.5,
-                    })
-                ]
+        $(document).ready(function () {
+            //init paper - Start
+            const graph = new joint.dia.Graph();
+            const paper = new joint.dia.Paper({
+                el: $('#paper'),
+                model: graph,
+                width: window.innerWidth,
+                height: window.innerHeight,
+                gridSize: 20,
             });
-        }
+            //init paper - END
 
-        //create shape - START
-        function createRectangle(paperX, paperY) {
-            const rect = new joint.shapes.standard.Rectangle({
-                position: { x: paperX - 40, y: paperY - 24 },
-                size: { width: 80, height: 48 },
-                attrs: {
-                    body: {
-                        fill: 'transparent',
-                        stroke: '#000000',
-                        strokeWidth: 1
-                    },
-                    label: {
-                        text: ''
-                    }
-                }
-            });
-            graph.addCell(rect);
-            const elementView = rect.findView(paper);
-            elementView.addTools(createToolsView());
-        }
+            const $resizeHandle = $('#resize-handle');
 
-        function createDiamond(paperX, paperY) {
-            const rect = new joint.shapes.standard.Rectangle({
-                position: { x: paperX - 24, y: paperY - 24 },
-                size: { width: 48, height: 48 },
-                angle: 45,
-                attrs: {
-                    body: {
-                        fill: 'transparent',
-                        stroke: '#000000',
-                        strokeWidth: 1
-                    },
-                    label: {
-                        text: ''
-                    }
-                }
-            });
-            graph.addCell(rect);
-            const elementView = rect.findView(paper);
-            elementView.addTools(createToolsView());
-        }
-
-        function createEllipse(paperX, paperY) {
-            const rect = new joint.shapes.standard.Ellipse({
-                position: { x: paperX - 40, y: paperY - 24 },
-                size: { width: 80, height: 48 },
-                attrs: {
-                    body: {
-                        fill: 'transparent',
-                        stroke: '#000000',
-                        strokeWidth: 1
-                    },
-                    label: {
-                        text: ''
-                    }
-                }
-            });
-            graph.addCell(rect);
-            const elementView = rect.findView(paper);
-            elementView.addTools(createToolsView());
-        }
-
-        function createText(paperX, paperY) {
-            const textBlock = new joint.shapes.standard.TextBlock({
-                position: { x: paperX - 40, y: paperY - 24 },
-                size: { width: 80, height: 48 },
-                attrs: {
-                    body: {
-                        fill: 'transparent',
-                        stroke: '#000000',
-                        strokeWidth: 1,
-                        strokeDasharray: '5,5'
-                    },
-                    label: {
-                        text: 'Tekst...',
-                        fill: '#000000'
-                    }
-                }
-            });
-            graph.addCell(textBlock);
-            const elementView = textBlock.findView(paper);
-            elementView.addTools(createToolsView());
-        }
-        //create shape - END
-
-        //init draggalble - START
-        $('.shape').draggable({
-            helper: function () {
-                const $clone = $(this).clone();
-                $clone.css({
-                    opacity: 0.8,
-                    cursor: 'grabbing',
-                    borderColor: '#000',
-                    color: '#000',
+            // obwódka i znaczek usuwanie
+            function createToolsView() {
+                return new joint.dia.ToolsView({
+                    tools: [
+                        new joint.elementTools.Boundary({
+                            padding: 10,
+                        }),
+                        new joint.elementTools.Remove({
+                            focusOpacity: 0.5,
+                        })
+                    ]
                 });
-                return $clone;
-            },
-            cursor: 'move',
-            revert: 'invalid',
-            appendTo: 'body',
-            zIndex: 1000
-        });
+            }
 
-        $('#paper').droppable({
-            accept: '.shape',
-            drop: function (event, ui) {
-                const shapeType = ui.helper.data('type');
+            function showResizeHandle(elementView) {
+                if (!elementView) return;
 
-                const containerOffset = $(this).offset();
-                const x = event.pageX - containerOffset.left;
-                const y = event.pageY - containerOffset.top;
+                const bbox = elementView.model.getBBox();
+                const clientRect = paper.localToClientRect(bbox);
 
+                $resizeHandle.css({
+                    left: clientRect.x,
+                    top: clientRect.y,
+                    width: clientRect.width,
+                    height: clientRect.height
+                }).show();
+
+                if ($resizeHandle.data('ui-resizable')) {
+                    $resizeHandle.resizable('destroy');
+                }
+
+                let originalBBox;
+
+                $resizeHandle.resizable({
+                    handles: 'n, e, s, w, ne, se, sw, nw',
+                    start: function(event, ui) {
+                        if (activeElementView) {
+                            activeElementView.hideTools();
+                        }
+                        originalBBox = selectedElement.getBBox();
+                    },
+                    resize: function(event, ui) {
+                        if (selectedElement && originalBBox) {
+                            const scale = paper.scale();
+                            const newWidth = ui.size.width / scale.sx;
+                            const newHeight = ui.size.height / scale.sy;
+
+                            const newX = originalBBox.x + (ui.position.left - ui.originalPosition.left) / scale.sx;
+                            const newY = originalBBox.y + (ui.position.top - ui.originalPosition.top) / scale.sy;
+
+                            if (selectedElement.get('angle')) {
+                                // Для повернутых фигур используем другой подход
+                                selectedElement.resize(newWidth, newHeight, { direction: 'center' });
+                            } else {
+                                selectedElement.position(newX, newY);
+                                selectedElement.resize(newWidth, newHeight);
+                            }
+                        }
+                    },
+                    stop: function(event, ui) {
+                        if (activeElementView) {
+                            activeElementView.showTools();
+                            // Обновляем позицию маркера после изменения размера
+                            showResizeHandle(activeElementView);
+                        }
+                        originalBBox = null;
+                    }
+                });
+            }
+
+
+
+            function hideResizeHandle() {
+                if ($resizeHandle.data('ui-resizable')) {
+                    $resizeHandle.resizable('destroy');
+                }
+                $resizeHandle.hide();
+            }
+
+            //create shape - START
+            function createRectangle(paperX, paperY) {
+                const rect = new joint.shapes.standard.Rectangle({
+                    position: { x: paperX - 40, y: paperY - 24 },
+                    size: { width: 80, height: 48 },
+                    attrs: {
+                        body: {
+                            fill: 'transparent',
+                            stroke: '#000000',
+                            strokeWidth: 1
+                        },
+                        label: {
+                            text: ''
+                        }
+                    }
+                });
+                graph.addCell(rect);
+                const elementView = rect.findView(paper);
+                elementView.addTools(createToolsView());
+            }
+
+            function createDiamond(paperX, paperY) {
+                const rect = new joint.shapes.standard.Rectangle({
+                    position: { x: paperX - 24, y: paperY - 24 },
+                    size: { width: 48, height: 48 },
+                    angle: 45,
+                    attrs: {
+                        body: {
+                            fill: 'transparent',
+                            stroke: '#000000',
+                            strokeWidth: 1
+                        },
+                        label: {
+                            text: ''
+                        }
+                    }
+                });
+                graph.addCell(rect);
+                const elementView = rect.findView(paper);
+                elementView.addTools(createToolsView());
+            }
+
+            function createEllipse(paperX, paperY) {
+                const rect = new joint.shapes.standard.Ellipse({
+                    position: { x: paperX - 40, y: paperY - 24 },
+                    size: { width: 80, height: 48 },
+                    attrs: {
+                        body: {
+                            fill: 'transparent',
+                            stroke: '#000000',
+                            strokeWidth: 1
+                        },
+                        label: {
+                            text: ''
+                        }
+                    }
+                });
+                graph.addCell(rect);
+                const elementView = rect.findView(paper);
+                elementView.addTools(createToolsView());
+            }
+
+            function createText(paperX, paperY) {
+                const textBlock = new joint.shapes.standard.TextBlock({
+                    position: { x: paperX - 40, y: paperY - 24 },
+                    size: { width: 80, height: 48 },
+                    attrs: {
+                        body: {
+                            fill: 'transparent',
+                            stroke: '#000000',
+                            strokeWidth: 1,
+                            strokeDasharray: '5,5'
+                        },
+                        label: {
+                            text: 'Tekst...',
+                            fill: '#000000'
+                        }
+                    }
+                });
+                graph.addCell(textBlock);
+                const elementView = textBlock.findView(paper);
+                elementView.addTools(createToolsView());
+            }
+            //create shape - END
+
+            //init draggalble - START
+            $('.shape').draggable({
+                helper: function () {
+                    const $clone = $(this).clone();
+                    $clone.css({
+                        opacity: 0.8,
+                        cursor: 'grabbing',
+                        borderColor: '#000',
+                        color: '#000',
+                    });
+                    return $clone;
+                },
+                cursor: 'move',
+                revert: 'invalid',
+                appendTo: 'body',
+                zIndex: 1000
+            });
+
+            $('#paper').droppable({
+                accept: '.shape',
+                drop: function (event, ui) {
+                    const shapeType = ui.helper.data('type');
+
+                    const containerOffset = $(this).offset();
+                    const x = event.pageX - containerOffset.left;
+                    const y = event.pageY - containerOffset.top;
+
+                    const scale = paper.scale();
+                    const translate = paper.translate();
+                    const paperX = (x - translate.tx) / scale.sx;
+                    const paperY = (y - translate.ty) / scale.sy;
+
+                    activeElementView = null;
+                    selectedElement = null;
+                    hideResizeHandle();
+
+                    if (shapeType === 'rectangle') {
+                        createRectangle(paperX, paperY);
+                    } else if (shapeType === 'ellipse') {
+                        createEllipse(paperX, paperY);
+                    } else if (shapeType === 'diamond') {
+                        createDiamond(paperX, paperY);
+                    } else if (shapeType === 'text') {
+                        createText(paperX, paperY);
+                    }
+                    const cells = graph.getCells();
+                    if (cells.length > 0) {
+                        const lastCell = cells[cells.length - 1];
+                        const lastView = lastCell.findView(paper);
+                        if (lastView && typeof lastView.hideTools === 'function') {
+                            lastView.hideTools();
+                        }
+                    }
+                }
+            });
+            //init draggable - END
+
+            function updateStatus(message) {
+                // $('#status').text(message + ' | Zoom: ' + Math.round(zoomLevel * 100) + '%');
+            }
+
+            function getViewportCenter() {
+                const container = $('.canvas-container');
                 const scale = paper.scale();
                 const translate = paper.translate();
-                const paperX = (x - translate.tx) / scale.sx;
-                const paperY = (y - translate.ty) / scale.sy;
 
-                activeElementView = null;
-                selectedElement = null;
+                return {
+                    x: (container.width() / 2 - translate.tx) / scale.sx,
+                    y: (container.height() / 2 - translate.ty) / scale.sy
+                };
+            }
 
-                if (shapeType === 'rectangle') {
-                    createRectangle(paperX, paperY);
-                } else if (shapeType === 'ellipse') {
-                    createEllipse(paperX, paperY);
-                } else if (shapeType === 'diamond') {
-                    createDiamond(paperX, paperY);
-                } else if (shapeType === 'text') {
-                    createText(paperX, paperY);
+            function copyShape() {
+                if (selectedElement) {
+                    clipboard = selectedElement.clone();
+                    updateStatus('Skopiowano element');
+                } else {
+                    updateStatus('Brak zaznaczonego elementu');
                 }
-                const cells = graph.getCells();
-                if (cells.length > 0) {
-                    const lastCell = cells[cells.length - 1];
-                    const lastView = lastCell.findView(paper);
-                    if (lastView && typeof lastView.hideTools === 'function') {
-                        lastView.hideTools();
+            }
+
+            function pasteShape() {
+                if (clipboard) {
+                    const center = getViewportCenter();
+                    const pasted = clipboard.clone();
+                    pasted.position(center.x + 20, center.y + 20);
+                    graph.addCell(pasted);
+
+                    const pastedView = pasted.findView(paper);
+                    if (pastedView) {
+                        pastedView.addTools(createToolsView());
+                        pastedView.showTools();
+
+                        if (activeElementView && activeElementView !== pastedView) {
+                            activeElementView.hideTools();
+                        }
+                        activeElementView = pastedView;
                     }
+
+                    selectedElement = pasted;
+                    showResizeHandle(pastedView);
+                    updateStatus('Wklejono element');
+                } else {
+                    updateStatus('Brak elementu w schowku');
                 }
             }
-        });
-        //init draggable - END
 
-        function updateStatus(message) {
-            $('#status').text(message + ' | Zoom: ' + Math.round(zoomLevel * 100) + '%');
-        }
-
-        function getViewportCenter() {
-            const container = $('.canvas-container');
-            const scale = paper.scale();
-            const translate = paper.translate();
-
-            return {
-                x: (container.width() / 2 - translate.tx) / scale.sx,
-                y: (container.height() / 2 - translate.ty) / scale.sy
-            };
-        }
-
-        function copyShape() {
-            if (selectedElement) {
-                clipboard = selectedElement.clone();
-                updateStatus('Skopiowano element');
-            } else {
-                updateStatus('Brak zaznaczonego elementu');
-            }
-        }
-
-        function pasteShape() {
-            if (clipboard) {
-                const center = getViewportCenter();
-                const pasted = clipboard.clone();
-                pasted.position(center.x + 20, center.y + 20);
-                graph.addCell(pasted);
-
-                const pastedView = pasted.findView(paper);
-                if (pastedView) {
-                    pastedView.addTools(createToolsView());
-                    pastedView.showTools();
-
-                    if (activeElementView && activeElementView !== pastedView) {
-                        activeElementView.hideTools();
-                    }
-                    activeElementView = pastedView;
+            function deleteShape() {
+                if (selectedElement) {
+                    selectedElement.remove();
+                    selectedElement = null;
+                    activeElementView = null;
+                    hideResizeHandle();
+                    updateStatus('Usunięto element');
                 }
-
-                selectedElement = pasted;
-                updateStatus('Wklejono element');
-            } else {
-                updateStatus('Brak elementu w schowku');
             }
-        }
 
-        function deleteShape() {
-            selectedElement.remove();
-            selectedElement = null;
-            updateStatus('Usunięto element');
-        }
+            $('#btn-delete').click(function() {
+                deleteShape()
+            });
 
-        $('#btn-delete').click(function() {
-            deleteShape()
-        });
+            $('#btn-copy').click(function() {
+                copyShape();
+            });
 
-        $('#btn-copy').click(function() {
-            copyShape();
-        });
-
-        $('#btn-paste').click(function() {
-            pasteShape();
-        });
+            $('#btn-paste').click(function() {
+                pasteShape();
+            });
 
 
-        paper.on('element:pointerclick', function (elementView) {
-            if (activeElementView && activeElementView !== elementView) {
-                activeElementView.hideTools();
-            }
-            elementView.showTools();
-            activeElementView = elementView;
-
-            selectedElement = elementView.model;
-        });
-
-        let panStart = null;
-        paper.on('blank:pointerdown', function (evt) {
-            if (activeElementView) {
-                if (typeof activeElementView.hideTools === 'function') {
+            paper.on('element:pointerclick', function (elementView) {
+                if (activeElementView && activeElementView !== elementView) {
                     activeElementView.hideTools();
                 }
-                if (typeof activeElementView.unhighlight === 'function') {
-                    activeElementView.unhighlight();
+                elementView.showTools();
+                activeElementView = elementView;
+                selectedElement = elementView.model;
+                showResizeHandle(elementView);
+            });
+
+            paper.on('element:pointermove', function(elementView) {
+                showResizeHandle(elementView);
+            });
+
+            let panStart = null;
+            paper.on('blank:pointerdown', function (evt) {
+                if (activeElementView) {
+                    if (typeof activeElementView.hideTools === 'function') {
+                        activeElementView.hideTools();
+                    }
+                    if (typeof activeElementView.unhighlight === 'function') {
+                        activeElementView.unhighlight();
+                    }
+                    activeElementView = null;
                 }
-                activeElementView = null;
-            }
-            selectedElement = null;
-            //ruszanie caloscia
-            panStart = {
-                x: evt.clientX,
-                y: evt.clientY,
-                tx: paper.translate().tx,
-                ty: paper.translate().ty
-            };
-            paper.$el.css('cursor', 'grabbing');
-        });
+                selectedElement = null;
+                hideResizeHandle();
+                //ruszanie caloscia
+                panStart = {
+                    x: evt.clientX,
+                    y: evt.clientY,
+                    tx: paper.translate().tx,
+                    ty: paper.translate().ty
+                };
+                paper.$el.css('cursor', 'grabbing');
+            });
 
-        $(document).on('mousemove', function (evt) {
-            if (panStart) {
-                const dx = evt.clientX - panStart.x;
-                const dy = evt.clientY - panStart.y;
-                paper.translate(panStart.tx + dx, panStart.ty + dy);
-            }
-        });
-
-        $(document).on('mouseup', function () {
-            if (panStart) {
-                panStart = null;
-                paper.$el.css('cursor', 'default');
-            }
-        });
-
-        //add text to text block - START
-        paper.on('element:pointerdblclick', function (elementView) {
-            if (elementView.model.attributes.type === 'standard.TextBlock') {
-                const currentText = elementView.model.attr('label/text');
-                const newText = prompt('Edytuj tekst:', currentText);
-                if (newText != null) {
-                    elementView.model.attr('label/text', newText);
+            $(document).on('mousemove', function (evt) {
+                if (panStart) {
+                    const dx = evt.clientX - panStart.x;
+                    const dy = evt.clientY - panStart.y;
+                    paper.translate(panStart.tx + dx, panStart.ty + dy);
+                    showResizeHandle(activeElementView);
                 }
-            }
-        });
+            });
 
-        $(document).on('keydown', function (e) {
-            if ((e.ctrlKey || e.metaKey) && e.key.toLowerCase() === 'c') {
-                e.preventDefault();
-                copyShape();
-                return;
+            $(document).on('mouseup', function () {
+                if (panStart) {
+                    panStart = null;
+                    paper.$el.css('cursor', 'default');
+                }
+            });
+
+            //add text to text block - START
+            paper.on('element:pointerdblclick', function (elementView) {
+                if (elementView.model.attributes.type === 'standard.TextBlock') {
+                    const currentText = elementView.model.attr('label/text');
+                    const newText = prompt('Edytuj tekst:', currentText);
+                    if (newText != null) {
+                        elementView.model.attr('label/text', newText);
+                    }
+                }
+            });
+
+            $(document).on('keydown', function (e) {
+                if ((e.ctrlKey || e.metaKey) && e.key.toLowerCase() === 'c') {
+                    e.preventDefault();
+                    copyShape();
+                    return;
+                }
+
+                if ((e.ctrlKey || e.metaKey) && e.key.toLowerCase() === 'v') {
+                    e.preventDefault();
+                    pasteShape();
+                    return;
+                }
+
+                if (e.key === 'Delete' && selectedElement) {
+                    deleteShape();
+                }
+            });
+            //add text to text block - END
+
+            // Zoom
+            const zoomStep = 0.2;
+            const minScale = 0.2;
+            const maxScale = 3.0;
+
+            function applyZoom(newScale, ox, oy) {
+                paper.scale(newScale, newScale, ox, oy);
+                showResizeHandle(activeElementView);
             }
 
-            if ((e.ctrlKey || e.metaKey) && e.key.toLowerCase() === 'v') {
-                e.preventDefault();
-                pasteShape();
-                return;
-            }
+            $('#zoom-in').click(function () {
+                const currentScale = paper.scale().sx;
+                const newScale = Math.min(maxScale, currentScale + zoomStep);
+                applyZoom(newScale);
+            });
 
-            if (e.key === 'Delete' && selectedElement) {
-                deleteShape();
-            }
-        });
-        //add text to text block - END
+            $('#zoom-out').click(function () {
+                const currentScale = paper.scale().sx;
+                const newScale = Math.max(minScale, currentScale - zoomStep);
+                applyZoom(newScale);
+            });
 
-        // Zoom
-        const zoomStep = 0.2;
-        const minScale = 0.2;
-        const maxScale = 3.0;
-
-        $('#zoom-in').click(function () {
-            const currentScale = paper.scale().sx;
-            const newScale = Math.min(maxScale, currentScale + zoomStep);
-            paper.scale(newScale, newScale);
+            // Zoom za pomoca kolka myszy
+            paper.on('blank:mousewheel cell:mousewheel', function (evt, x, y, delta) {
+                evt.preventDefault();
+                const oldScale = paper.scale().sx;
+                const zoomFactor = 0.2;
+                let newScale = oldScale * (1 + delta * zoomFactor);
+                newScale = Math.max(minScale, Math.min(maxScale, newScale));
+                applyZoom(newScale, x, y);
+            });
         });
 
-        $('#zoom-out').click(function () {
-            const currentScale = paper.scale().sx;
-            const newScale = Math.max(minScale, currentScale - zoomStep);
-            paper.scale(newScale, newScale);
-        });
-
-        // Zoom za pomoca kolka myszy
-        paper.on('blank:mousewheel cell:mousewheel', function (evt, x, y, delta) {
-            evt.preventDefault();
-            const oldScale = paper.scale().sx;
-            const zoomFactor = 0.2;
-            let newScale = oldScale * (1 + delta * zoomFactor);
-            newScale = Math.max(minScale, Math.min(maxScale, newScale));
-            paper.scale(newScale, newScale, x, y);
-        });
-    });
     </script>
 </body>
 
diff --git a/style.css b/style.css
index a6ed88a..41e7805 100644
--- a/style.css
+++ b/style.css
@@ -240,6 +240,16 @@ body {
     background: #999;
 }
 
+.ui-resizable-handle {
+    background: #4A90E2;
+    border: 1px solid #ffffff;
+    width: 10px;
+    height: 10px;
+    border-radius: 50%;
+    box-shadow: 0 0 5px rgba(0,0,0,0.2);
+}
+
+
 /* Responsive */
 @media (max-width: 768px) {
     .toolbar {