fix: v4.5.0 - cross-day drag (ghost element, no overflow issue); adaptive block labels; PDF fit_text truncation

app/config.py

@@ -1,5 +1,5 @@
 """Application configuration."""
 
-VERSION = "4.4.0"
+VERSION = "4.5.0"
 MAX_FILE_SIZE_MB = 10
 DEFAULT_COLOR = "#ffffff"

app/core/pdf_generator.py

@@ -153,6 +153,25 @@ def draw_clipped_text(c, text, x, y, w, h, font, size, rgb, align='center'):
     c.restoreState()
 
 
+def fit_text(c, text: str, font: str, size: float, max_w: float) -> str:
+    """Truncate text with ellipsis so it fits within max_w points."""
+    if not text:
+        return text
+    if c.stringWidth(text, font, size) <= max_w:
+        return text
+    # Binary-search trim
+    ellipsis = '…'
+    ellipsis_w = c.stringWidth(ellipsis, font, size)
+    lo, hi = 0, len(text)
+    while lo < hi:
+        mid = (lo + hi + 1) // 2
+        if c.stringWidth(text[:mid], font, size) + ellipsis_w <= max_w:
+            lo = mid
+        else:
+            hi = mid - 1
+    return (text[:lo] + ellipsis) if lo < len(text) else text
+
+
 def generate_pdf(doc) -> bytes:
     if not doc.blocks:
         raise ScenarsError("No blocks provided")
@@ -373,19 +392,29 @@ def generate_pdf(doc) -> bytes:
             dim_rgb = ((text_rgb[0] * 0.78, text_rgb[1] * 0.78, text_rgb[2] * 0.78)
                        if is_light(pt.color) else (0.82, 0.82, 0.82))
 
-            # Determine vertical layout: how many lines fit?
-            has_responsible = bool(block.responsible)
+            # Available width for text (inset + 2pt padding each side)
+            text_w_avail = max(1.0, bw - 2 * inset - 4)
+
             sup_size  = max(4.0, block_title_font * 0.65)
             resp_size = max(4.0, block_time_font)
 
+            # Truncate title to fit (leave room for superscript number)
+            sup_reserve = (c.stringWidth(str(fn_num), _FONT_BOLD, sup_size) + 1.5
+                           if fn_num else 0)
+            fitted_title = fit_text(c, title_text, _FONT_BOLD, block_title_font,
+                                    text_w_avail - sup_reserve)
+
+            # Determine vertical layout: how many lines fit?
+            has_responsible = bool(block.responsible)
             if has_responsible and row_h >= block_title_font + resp_size + 3:
-                # Two-line: title (with superscript) + responsible
+                # Two-line: title + responsible
                 title_y = row_y + row_h * 0.55
                 resp_y  = row_y + row_h * 0.55 - block_title_font - 1
-                # responsible
+                fitted_resp = fit_text(c, block.responsible, _FONT_ITALIC, resp_size,
+                                       text_w_avail)
                 c.setFont(_FONT_ITALIC, resp_size)
                 set_fill(c, dim_rgb)
-                c.drawCentredString(bx + bw / 2, resp_y, block.responsible)
+                c.drawCentredString(bx + bw / 2, resp_y, fitted_resp)
             else:
                 # Single line: title centred
                 title_y = row_y + (row_h - block_title_font) / 2
@@ -395,16 +424,15 @@ def generate_pdf(doc) -> bytes:
             set_fill(c, text_rgb)
             if fn_num is not None:
                 # Draw title then superscript footnote number
-                title_w = c.stringWidth(title_text, _FONT_BOLD, block_title_font)
-                tx = bx + bw / 2 - title_w / 2
-                c.drawString(tx, title_y, title_text)
-                # Superscript: small number raised by ~font_size * 0.5
+                title_w = c.stringWidth(fitted_title, _FONT_BOLD, block_title_font)
+                tx = bx + bw / 2 - (title_w + sup_reserve) / 2
+                c.drawString(tx, title_y, fitted_title)
                 c.setFont(_FONT_BOLD, sup_size)
                 set_fill(c, dim_rgb)
                 c.drawString(tx + title_w + 0.5, title_y + block_title_font * 0.45,
                              str(fn_num))
             else:
-                c.drawCentredString(bx + bw / 2, title_y, title_text)
+                c.drawCentredString(bx + bw / 2, title_y, fitted_title)
 
             c.restoreState()
 

app/static/css/app.css

@@ -768,12 +768,6 @@ body {
     position: relative;
 }
 
-/* Allow blocks to visually leave their row during cross-day drag */
-.day-rows.dragging .day-row,
-.day-rows.dragging .day-timeline {
-    overflow: visible;
-}
-
 /* Highlight the row being dragged over */
 .day-timeline.drag-target {
     background: #eff6ff;
@@ -781,6 +775,13 @@ body {
     outline-offset: -2px;
 }
 
+/* Floating ghost shown during cross-day drag */
+.drag-ghost {
+    border-radius: 4px;
+    pointer-events: none;
+    user-select: none;
+}
+
 .day-label {
     display: flex;
     align-items: center;

app/static/index.html

@@ -13,7 +13,7 @@
     <header class="header">
         <div class="header-left">
             <h1 class="header-title">Scénář Creator</h1>
-            <span class="header-version">v4.4</span>
+            <span class="header-version">v4.5</span>
         </div>
         <div class="header-actions">
             <label class="btn btn-secondary btn-sm" id="importJsonBtn">

app/static/js/canvas.js

@@ -229,28 +229,35 @@ const Canvas = {
             position:absolute;
         `;
 
-        // Block label
+        // Block label — adaptive based on available width
+        const widthPx = (ce - cs) * this.pxPerMinute;
         const inner = document.createElement('div');
         inner.className = 'block-inner';
-        const timeLabel = `${block.start}–${block.end}`;
 
+        if (widthPx >= 28) {
             const nameEl = document.createElement('span');
             nameEl.className = 'block-title';
             nameEl.textContent = block.title + (block.notes ? ' *' : '');
+            inner.appendChild(nameEl);
 
+            if (widthPx >= 72) {
+                const timeLabel = `${block.start}–${block.end}`;
                 const timeEl = document.createElement('span');
                 timeEl.className = 'block-time';
                 timeEl.textContent = timeLabel + (isOvernight ? ' →' : '');
-
-        inner.appendChild(nameEl);
                 inner.appendChild(timeEl);
+            }
 
-        if (block.responsible) {
+            if (widthPx >= 90 && block.responsible) {
                 const respEl = document.createElement('span');
                 respEl.className = 'block-responsible';
                 respEl.textContent = block.responsible;
                 inner.appendChild(respEl);
             }
+        }
+        // Tooltip always available for narrow blocks
+        el.title = `${block.title} (${block.start}–${block.end})` +
+                   (block.responsible ? ` · ${block.responsible}` : '');
         el.appendChild(inner);
 
         // Click to edit
@@ -259,24 +266,18 @@ const Canvas = {
             App.openBlockModal(block.id);
         });
 
-        // interact.js drag (X = time, Y = cross-day)
+        // Native pointer drag — ghost on document.body, avoids overflow/clipping issues
+        el.addEventListener('pointerdown', (e) => {
+            const elRect = el.getBoundingClientRect();
+            if (e.clientX > elRect.right - 8) return; // right 8px = resize handle
+            e.preventDefault();
+            e.stopPropagation();
+            this._startPointerDrag(e, el, block);
+        });
+
+        // interact.js resize only (right edge)
         if (window.interact) {
             interact(el)
-                .draggable({
-                    listeners: {
-                        start: (event) => this._onDragStart(event, block),
-                        move:  (event) => this._onDragMove(event, block),
-                        end:   (event) => this._onDragEnd(event, block),
-                    },
-                    modifiers: [
-                        interact.modifiers.snap({
-                            targets: [interact.snappers.grid({ x: this._minutesPx(this.GRID_MINUTES), y: 10000 })],
-                            range: Infinity,
-                            relativePoints: [{ x: 0, y: 0 }],
-                        }),
-                    ],
-                    inertia: false,
-                })
                 .resizable({
                     edges: { right: true },
                     listeners: {
@@ -299,70 +300,82 @@ const Canvas = {
         return minutes * this.pxPerMinute;
     },
 
-    _onDragStart(event, block) {
-        const target = event.target;
-        target.dataset.dy = '0';
-        target.style.zIndex = '500';
-        // Enable cross-row overflow while dragging
-        const dayRows = document.getElementById('dayRows');
-        if (dayRows) dayRows.classList.add('dragging');
-    },
+    // Native pointer drag — creates a ghost on document.body so clipping never happens
+    _startPointerDrag(e, el, block) {
+        const startX     = e.clientX;
+        const startY     = e.clientY;
+        const elRect     = el.getBoundingClientRect();
+        const startMin   = this.parseTime(block.start);
+        const duration   = this.parseTime(block.end) - startMin;
+        const snapGrid   = this._minutesPx(this.GRID_MINUTES);
 
-    _onDragMove(event, block) {
-        const target = event.target;
+        // Create floating ghost
+        const ghost = document.createElement('div');
+        ghost.className = 'block-el drag-ghost';
+        ghost.innerHTML = el.innerHTML;
+        Object.assign(ghost.style, {
+            position:      'fixed',
+            left:          elRect.left + 'px',
+            top:           elRect.top  + 'px',
+            width:         elRect.width + 'px',
+            height:        elRect.height + 'px',
+            background:    el.style.background,
+            color:         el.style.color,
+            zIndex:        '9999',
+            opacity:       '0.88',
+            pointerEvents: 'none',
+            cursor:        'grabbing',
+            boxShadow:     '0 6px 20px rgba(0,0,0,0.28)',
+            borderRadius:  '4px',
+            transition:    'none',
+            margin:        '0',
+        });
+        document.body.appendChild(ghost);
+        el.style.opacity = '0.25'; // dim original, don't hide (keeps layout)
 
-        // ── X axis: update time ──────────────────────────────────────
-        const deltaMin = event.dx / this.pxPerMinute;
-        const duration = this.parseTime(block.end) - this.parseTime(block.start);
-        const newStartMin = this.snapMinutes(this.parseTime(block.start) + deltaMin);
-        const clampedStart = Math.max(this._startMin, Math.min(this._endMin - duration, newStartMin));
-        block.start = this.formatTime(clampedStart);
-        block.end   = this.formatTime(clampedStart + duration);
-        const totalRange = this._endMin - this._startMin;
-        target.style.left = ((clampedStart - this._startMin) / totalRange * 100) + '%';
-
-        // ── Y axis: visual shift + row highlight ─────────────────────
-        const dy = (parseFloat(target.dataset.dy) || 0) + event.dy;
-        target.dataset.dy = dy;
-        target.style.transform = `translateY(${dy}px)`;
-
-        this._highlightTargetRow(target);
-    },
-
-    _onDragEnd(event, block) {
-        const target = event.target;
-
-        // Detect which day-timeline the block's vertical center is over
-        const rect = target.getBoundingClientRect();
-        const centerY = rect.top + rect.height / 2;
-        for (const row of document.querySelectorAll('.day-timeline')) {
-            const rr = row.getBoundingClientRect();
-            if (centerY >= rr.top && centerY <= rr.bottom) {
-                block.date = row.dataset.date;
-                break;
-            }
-        }
-
-        // Cleanup
+        const clearHighlights = () =>
             document.querySelectorAll('.day-timeline.drag-target')
                 .forEach(r => r.classList.remove('drag-target'));
-        const dayRows = document.getElementById('dayRows');
-        if (dayRows) dayRows.classList.remove('dragging');
-        target.style.transform = '';
-        target.style.zIndex = '';
-        delete target.dataset.dy;
 
+        const onMove = (ev) => {
+            const dx = ev.clientX - startX;
+            const dy = ev.clientY - startY;
+            ghost.style.left = (elRect.left + dx) + 'px';
+            ghost.style.top  = (elRect.top  + dy) + 'px';
+
+            // Highlight target row — elementFromPoint sees through ghost (pointer-events:none)
+            clearHighlights();
+            const under = document.elementFromPoint(ev.clientX, ev.clientY);
+            under?.closest('.day-timeline')?.classList.add('drag-target');
+        };
+
+        const onUp = (ev) => {
+            document.removeEventListener('pointermove', onMove);
+            document.removeEventListener('pointerup',   onUp);
+
+            const dx = ev.clientX - startX;
+
+            // Snap X to 15-min grid
+            const snappedDx   = Math.round(dx / snapGrid) * snapGrid;
+            const deltaMin    = snappedDx / this.pxPerMinute;
+            const newStart    = this.snapMinutes(startMin + deltaMin);
+            const clamped     = Math.max(this._startMin, Math.min(this._endMin - duration, newStart));
+            block.start = this.formatTime(clamped);
+            block.end   = this.formatTime(clamped + duration);
+
+            // Determine target day
+            const under = document.elementFromPoint(ev.clientX, ev.clientY);
+            const timeline = under?.closest('.day-timeline');
+            if (timeline?.dataset.date) block.date = timeline.dataset.date;
+
+            ghost.remove();
+            el.style.opacity = '';
+            clearHighlights();
             App.renderCanvas();
-    },
+        };
 
-    _highlightTargetRow(el) {
-        const rect = el.getBoundingClientRect();
-        const centerY = rect.top + rect.height / 2;
-        document.querySelectorAll('.day-timeline').forEach(row => {
-            const rr = row.getBoundingClientRect();
-            const isTarget = centerY >= rr.top && centerY <= rr.bottom;
-            row.classList.toggle('drag-target', isTarget);
-        });
+        document.addEventListener('pointermove', onMove);
+        document.addEventListener('pointerup',   onUp);
     },
 
     _onResizeMove(event, block) {