changing labels print

check_libs.py

@@ -0,0 +1,29 @@
+import os
+from cffi import FFI
+
+ffi = FFI()
+
+def _dlopen(*names):
+    for name in names:
+        try:
+            lib = ffi.dlopen(name)
+            print(f"Loaded {name}")
+            return lib
+        except OSError as e:
+            print(f"Failed to load {name}: {e}")
+    return None
+
+print("Checking gobject...")
+_dlopen('libgobject-2.0-0', 'gobject-2.0-0', 'gobject-2.0', 'libgobject-2.0.so.0')
+
+print("\nChecking pango...")
+_dlopen('libpango-1.0-0', 'pango-1.0-0', 'pango-1.0', 'libpango-1.0.so.0')
+
+print("\nChecking harfbuzz...")
+_dlopen('libharfbuzz-0', 'harfbuzz', 'harfbuzz-0.0', 'libharfbuzz.so.0')
+
+print("\nChecking fontconfig...")
+_dlopen('libfontconfig-1', 'fontconfig-1', 'fontconfig', 'libfontconfig.so.1')
+
+print("\nChecking pangoft2...")
+_dlopen('libpangoft2-1.0-0', 'pangoft2-1.0-0', 'pangoft2-1.0', 'libpangoft2-1.0.so.0')

core/templates/core/barcode_labels.html

@@ -5,9 +5,14 @@
 <div class="container-fluid mt-4 mb-5 no-print">
     <div class="d-flex justify-content-between align-items-center mb-4">
         <h2 class="h4 mb-0"><i class="bi bi-upc-scan me-2"></i>Barcode Label Printing</h2>
-        <button id="printQueueBtn" class="btn btn-primary">
+        <div class="d-flex gap-2">
-            <i class="bi bi-printer me-2"></i>Print Label Queue
+            <button id="clearQueueBtn" class="btn btn-outline-danger">
-        </button>
+                <i class="bi bi-trash me-2"></i>Clear Queue
+            </button>
+            <button id="printQueueBtn" class="btn btn-primary">
+                <i class="bi bi-printer me-2"></i>Print Label Queue
+            </button>
+        </div>
     </div>
 
     <div class="row">
@@ -132,24 +137,17 @@
             <!-- Live Preview -->
             <div class="card shadow-sm border-0">
                 <div class="card-header bg-white py-3 d-flex justify-content-between align-items-center">
-                    <h5 class="card-title mb-0">3. Live Preview (Single Label)</h5>
+                    <h5 class="card-title mb-0">3. Live Preview (Queue Preview)</h5>
                     <button type="button" class="btn btn-sm btn-success" id="printPreviewBtn">
-                        <i class="bi bi-printer me-1"></i>Print This Label
+                        <i class="bi bi-printer me-1"></i>Print All in Queue
                     </button>
                 </div>
-                <div class="card-body text-center bg-light p-5">
+                <div class="card-body text-center bg-light p-4">
-                    <div id="previewContainer" class="d-inline-block bg-white shadow-sm p-3 border">
+                    <div id="previewContainer" class="d-flex flex-wrap justify-content-center gap-3">
-                        <div id="previewLabelContent">
+                        <!-- Dynamic preview labels will be injected here -->
-                            <div class="preview-name fw-bold small mb-1">Product Name</div>
-                            <svg id="previewBarcode"></svg>
-                            <div class="preview-footer d-flex justify-content-between mt-1 small">
-                                <span class="preview-sku">SKU12345</span>
-                                <span class="preview-price fw-bold">OMR 0.000</span>
-                            </div>
-                        </div>
                     </div>
                     <div class="mt-3 text-muted small">
-                        Note: This is a preview of the layout. Actual print layout depends on settings above.
+                        Note: This preview shows one of each product in your queue. Actual sheet layout will be generated on print.
                     </div>
                 </div>
             </div>
@@ -481,6 +479,17 @@ document.addEventListener('DOMContentLoaded', function() {
         printQueueBtn.addEventListener('click', handlePrintQueue);
     }
 
+    const clearQueueBtn = document.getElementById('clearQueueBtn');
+    if (clearQueueBtn) {
+        clearQueueBtn.addEventListener('click', function() {
+            if (confirm("Are you sure you want to clear the entire queue?")) {
+                queue.length = 0;
+                renderQueue();
+                updatePreview();
+            }
+        });
+    }
+
     function handlePrintQueue() {
         if (queue.length === 0) return;
         preparePrint(); 
@@ -491,7 +500,7 @@ document.addEventListener('DOMContentLoaded', function() {
     
     const printPreviewBtn = document.getElementById('printPreviewBtn');
     if (printPreviewBtn) {
-        printPreviewBtn.addEventListener('click', printSingleFromPreview);
+        printPreviewBtn.addEventListener('click', handlePrintQueue);
     }
 
     // Product Search
@@ -514,38 +523,90 @@ document.addEventListener('DOMContentLoaded', function() {
 
     // --- PREVIEW LOGIC ---
     function updatePreview() {
-        let product = null;
+        const container = document.getElementById('previewContainer');
+        if (!container) return;
+        
+        container.innerHTML = '';
+        
+        // Items to show: either everything in the queue, or the last added if queue is empty
+        let itemsToShow = [];
         if (queue.length > 0) {
-            product = queue[queue.length - 1];
+            itemsToShow = [...queue];
         } else if (lastAddedProduct) {
-            product = lastAddedProduct;
+            itemsToShow = [lastAddedProduct];
         }
-        
-        if (!product) return;
-        
-        const previewName = document.querySelector('.preview-name');
-        const previewSku = document.querySelector('.preview-sku');
-        const previewPrice = document.querySelector('.preview-price');
-        
-        if (previewName) previewName.innerHTML = (product.nameAr ? `<div class='text-end'>${product.nameAr}</div>` : '') + `<div>${product.name}</div>`;
-        if (previewSku) previewSku.innerText = product.sku;
-        if (previewPrice) previewPrice.innerText = 'OMR ' + parseFloat(product.price).toFixed(3);
-        
-        try {
-            if (typeof JsBarcode !== 'undefined') {
-                JsBarcode("#previewBarcode", product.sku, {
-                    format: "CODE128", width: 2, height: 40, displayValue: false, margin: 0
-                });
-            }
-        } catch(e) {}
 
+        if (itemsToShow.length === 0) {
+            container.innerHTML = '<div class="py-4 text-muted">No items selected for preview</div>';
+            return;
+        }
+
+        const labelType = document.getElementById('labelType').value;
         const showName = document.getElementById('showName').checked;
         const showPrice = document.getElementById('showPrice').checked;
         const showSKU = document.getElementById('showSKU').checked;
-        
+
-        if (previewName) previewName.style.display = showName ? '' : 'none';
+        itemsToShow.forEach((p, idx) => {
-        if (previewPrice) previewPrice.style.display = showPrice ? '' : 'none';
+            const previewItem = document.createElement('div');
-        if (previewSku) previewSku.style.display = showSKU ? '' : 'none';
+            previewItem.className = 'bg-white shadow-sm border p-2 d-flex flex-column align-items-center justify-content-center position-relative';
+            
+            // Apply approximate styles based on labelType for the preview
+            let pWidth = "180px";
+            let pHeight = "auto";
+            let minHeight = "100px";
+
+            if (labelType === 'l7651') { pWidth = "150px"; minHeight = "80px"; }
+            else if (labelType === 'l7656') { pWidth = "180px"; minHeight = "50px"; }
+            else if (labelType === 'a4-40') { pWidth = "160px"; minHeight = "90px"; }
+            
+            previewItem.style.width = pWidth;
+            previewItem.style.minHeight = minHeight;
+
+            let content = '';
+            if (p.qty > 1) {
+                content += `<span class="badge bg-secondary position-absolute top-0 end-0 m-1" title="Quantity to print">${p.qty}x</span>`;
+            }
+
+            if (labelType === 'l7656') {
+                content = `<div class="d-flex align-items-center justify-content-between w-100 gap-2">`;
+                if (showName) content += `<div class="small fw-bold text-start" style="font-size: 0.7rem; max-width: 60px;">${p.nameAr ? p.nameAr + " " : ""}${p.name}</div>`;
+                content += `<svg class="preview-barcode-item"></svg>`;
+                if (showPrice) content += `<div class="small fw-bold" style="font-size: 0.7rem;">${parseFloat(p.price).toFixed(3)}</div>`;
+                content += `</div>`;
+            } else {
+                if (showName) {
+                    content += `<div class="fw-bold small mb-1 w-100 text-center text-truncate" title="${p.name}">`;
+                    if (p.nameAr) content += `<div class="text-muted" style="font-size: 0.7rem">${p.nameAr}</div>`;
+                    content += `${p.name}</div>`;
+                }
+                content += `<svg class="preview-barcode-item"></svg>`;
+                if (showSKU || showPrice) {
+                    content += `<div class="d-flex justify-content-between w-100 mt-1" style="font-size: 0.7rem;">`;
+                    if (showSKU) content += `<span class="text-muted">${p.sku}</span>`;
+                    if (showPrice) content += `<span class="fw-bold text-success">OMR ${parseFloat(p.price).toFixed(3)}</span>`;
+                    content += `</div>`;
+                }
+            }
+
+            previewItem.innerHTML = content;
+            container.appendChild(previewItem);
+
+            // Render barcode
+            const svgEl = previewItem.querySelector('.preview-barcode-item');
+            if (svgEl && typeof JsBarcode !== 'undefined') {
+                let bWidth = 1.2;
+                let bHeight = 30;
+                if (labelType === 'l7651') { bWidth = 0.9; bHeight = 20; }
+                else if (labelType === 'l7656') { bWidth = 0.8; bHeight = 15; }
+                else if (labelType === 'price-tag') { bWidth = 0.8; bHeight = 15; }
+
+                try {
+                    JsBarcode(svgEl, p.sku, {
+                        format: "CODE128", width: bWidth, height: bHeight, displayValue: false, margin: 0
+                    });
+                } catch(e) {}
+            }
+        });
     }
 
     // --- DIRECT PRINT ---
@@ -560,16 +621,6 @@ document.addEventListener('DOMContentLoaded', function() {
         performDirectPrint(product);
     }
 
-    function printSingleFromPreview() {
-        let product = null;
-        if (queue.length > 0) {
-            product = queue[queue.length - 1];
-        } else if (lastAddedProduct) {
-            product = lastAddedProduct;
-        }
-        if (product) performDirectPrint(product);
-    }
-
     function performDirectPrint(product) {
         document.body.classList.add('direct-print-mode');
         printArea.innerHTML = '';
@@ -718,7 +769,7 @@ document.addEventListener('DOMContentLoaded', function() {
     }
 
     // --- SETUP LISTENERS ---
-    document.getElementById('labelType').addEventListener('change', () => preparePrint());
+    document.getElementById('labelType').addEventListener('change', () => { updatePreview(); preparePrint(); });
     document.getElementById('showName').addEventListener('change', () => { updatePreview(); preparePrint(); });
     document.getElementById('showPrice').addEventListener('change', () => { updatePreview(); preparePrint(); });
     document.getElementById('showSKU').addEventListener('change', () => { updatePreview(); preparePrint(); });

core/urls.py

@@ -172,4 +172,5 @@ urlpatterns = [
     # Database Backup/Restore
     path('settings/backup/', views.backup_database, name='backup_database'),
     path('settings/restore/', views.restore_database, name='restore_database'),
+    path('api/test-pdf/', views.test_pdf_view, name='test_pdf_view'),
 ]

core/views.py

@@ -43,6 +43,16 @@ logger = logging.getLogger(__name__)
 
 # --- Basic Views ---
 
+def test_pdf_view(request):
+    from weasyprint import HTML
+    html_string = "<h1>Test PDF</h1>"
+    pdf = HTML(string=html_string).write_pdf()
+    return HttpResponse(pdf, content_type='application/pdf')
+
+@login_required
+def dashboard(request):
+    return redirect('core:index')
+
 @login_required
 def index(request):
     settings = SystemSetting.objects.first()

reproduce_error.py

@@ -0,0 +1,33 @@
+
+import os
+import django
+from django.conf import settings as django_settings
+from django.template.loader import render_to_string
+from django.test import RequestFactory
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings')
+django.setup()
+
+from core.views import generate_pdf_file
+from core.models import Sale
+
+def test_pdf():
+    try:
+        sale = Sale.objects.first()
+        if not sale:
+            print("No sales found")
+            return
+            
+        request = RequestFactory().get('/')
+        context = {'sale': sale} # Simplified context
+        
+        print("Testing PDF generation...")
+        pdf = generate_pdf_file('pdf/invoice_pdf.html', context, request)
+        print(f"PDF generated successfully, size: {len(pdf)}")
+    except Exception as e:
+        print(f"Caught error: {e}")
+        import traceback
+        traceback.print_exc()
+
+if __name__ == "__main__":
+    test_pdf()

test_weasyprint.py

@@ -0,0 +1,23 @@
+
+import os
+import sys
+import django
+from django.conf import settings as django_settings
+from django.template.loader import render_to_string
+
+# Setup Django
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings')
+django.setup()
+
+def test_pdf():
+    from weasyprint import HTML
+    print("Imported weasyprint")
+    html_string = "<h1>Test</h1>"
+    try:
+        pdf = HTML(string=html_string).write_pdf()
+        print(f"Success! PDF size: {len(pdf)}")
+    except Exception as e:
+        print(f"Failed: {e}")
+
+if __name__ == "__main__":
+    test_pdf()