From 04e2d631bb67c3c0f3ee4570a9136ef57dcd09b3 Mon Sep 17 00:00:00 2001
From: wandererfan <wandererfan@gmail.com>
Date: Sun, 7 Dec 2025 13:35:05 -0500
Subject: [PATCH] [TD]fix tearing of page edges

---
 src/Mod/TechDraw/Gui/QGISVGTemplate.cpp | 38 +++++++++++++++++++++++--
 src/Mod/TechDraw/Gui/QGISVGTemplate.h   |  6 +++-
 src/Mod/TechDraw/Gui/QGVPage.cpp        | 18 ------------
 3 files changed, 41 insertions(+), 21 deletions(-)

diff --git a/src/Mod/TechDraw/Gui/QGISVGTemplate.cpp b/src/Mod/TechDraw/Gui/QGISVGTemplate.cpp
index 9f795652e1..813005df0f 100644
--- a/src/Mod/TechDraw/Gui/QGISVGTemplate.cpp
+++ b/src/Mod/TechDraw/Gui/QGISVGTemplate.cpp
@@ -36,6 +36,8 @@
 #include <Base/Parameter.h>
 
 #include <Mod/TechDraw/App/DrawSVGTemplate.h>
+#include <Mod/TechDraw/App/DrawPage.h>
+// #include <Mod/TechDraw/App/DrawSVGTemplate.h>
 #include <Mod/TechDraw/App/DrawUtil.h>
 #include <Mod/TechDraw/App/XMLQuery.h>
 
@@ -147,8 +149,12 @@ using namespace TechDraw;
 
 QGISVGTemplate::QGISVGTemplate(QGSPage* scene) : QGITemplate(scene),
     m_svgItem(new QGraphicsSvgItem(this)),
-    m_svgRender(new QSvgRenderer())
+    m_svgRender(new QSvgRenderer()),
+    m_pageRectangle(new QGraphicsRectItem(this))
 {
+    m_pageRectangle->setZValue(ZVALUE::BACKGROUND);
+
+
     m_svgItem->setSharedRenderer(m_svgRender);
 
     m_svgItem->setFlags(QGraphicsItem::ItemClipsToShape);
@@ -166,6 +172,7 @@ void QGISVGTemplate::openFile(const QFile& file) { Q_UNUSED(file); }
 
 void QGISVGTemplate::load(QByteArray svgCode)
 {
+    prepareGeometryChange();
     applyWorkaround(svgCode);
     m_svgRender->load(svgCode);
 
@@ -198,7 +205,7 @@ void QGISVGTemplate::load(QByteArray svgCode)
     }
 }
 
-TechDraw::DrawSVGTemplate* QGISVGTemplate::getSVGTemplate()
+TechDraw::DrawSVGTemplate* QGISVGTemplate::getSVGTemplate() const
 {
     if (pageTemplate && pageTemplate->isDerivedFrom<TechDraw::DrawSVGTemplate>()) {
         return static_cast<TechDraw::DrawSVGTemplate*>(pageTemplate);
@@ -213,10 +220,36 @@ void QGISVGTemplate::draw()
     if (!tmplte) {
         throw Base::RuntimeError("Template Feature not set for QGISVGTemplate");
     }
+
+    drawPageRectangle();
+
     QString templateSvg = tmplte->processTemplate();
     load(templateSvg.toUtf8());
 }
 
+void QGISVGTemplate::drawPageRectangle()
+{
+    // Draw the white page
+    // Default to A3 landscape, though this is currently relevant
+    // only for opening corrupt docs, etc.
+    constexpr double PageWidthDefault{420.0};
+    double pageWidth{PageWidthDefault};
+    constexpr double PageHeightDefault{297.0};
+    double pageHeight{PageHeightDefault};
+
+    DrawTemplate* ourTemplate = getTemplate();
+    DrawPage* ourPage = ourTemplate ? ourTemplate->getParentPage() : nullptr;
+    if (ourTemplate && ourPage) {
+        pageWidth = Rez::guiX(ourPage->getPageWidth());
+        pageHeight = Rez::guiX(ourPage->getPageHeight());
+    }
+    QRectF paperRect(0, -pageHeight, pageWidth, pageHeight);
+    QBrush pageBrush(PreferencesGui::pageQColor());
+    m_pageRectangle->setRect(paperRect);
+    m_pageRectangle->setBrush(pageBrush);
+}
+
+
 void QGISVGTemplate::updateView(bool update)
 {
     if (update) {
@@ -343,4 +376,5 @@ void QGISVGTemplate::createClickHandles()
     }
 }
 
+
 #include <Mod/TechDraw/Gui/moc_QGISVGTemplate.cpp>
diff --git a/src/Mod/TechDraw/Gui/QGISVGTemplate.h b/src/Mod/TechDraw/Gui/QGISVGTemplate.h
index 8b2527cd06..b42526d6ba 100644
--- a/src/Mod/TechDraw/Gui/QGISVGTemplate.h
+++ b/src/Mod/TechDraw/Gui/QGISVGTemplate.h
@@ -55,9 +55,11 @@ public:
     int type() const override { return Type; }
 
     void draw() override;
+    void drawPageRectangle();
+
     void updateView(bool update = false) override;
 
-    TechDraw::DrawSVGTemplate* getSVGTemplate();
+    TechDraw::DrawSVGTemplate* getSVGTemplate() const;
     std::vector<TemplateTextField*> getTextFields() override;
 
 protected:
@@ -70,6 +72,8 @@ protected:
 private:
     QGraphicsSvgItem* m_svgItem;
     QSvgRenderer* m_svgRender;
+    QGraphicsRectItem* m_pageRectangle;
+
 };// class QGISVGTemplate
 
 }// namespace TechDrawGui
diff --git a/src/Mod/TechDraw/Gui/QGVPage.cpp b/src/Mod/TechDraw/Gui/QGVPage.cpp
index a421783c27..7188fd7179 100644
--- a/src/Mod/TechDraw/Gui/QGVPage.cpp
+++ b/src/Mod/TechDraw/Gui/QGVPage.cpp
@@ -310,24 +310,6 @@ void QGVPage::drawBackground(QPainter* painter, const QRectF&)
     painter->drawRect(
         viewport()->rect().adjusted(-2, -2, 2, 2));//just bigger than viewport to prevent artifacts
 
-    // Default to A3 landscape, though this is currently relevant
-    // only for opening corrupt docs, etc.
-    float pageWidth = 420, pageHeight = 297;
-
-    if (m_vpPage->getDrawPage()->hasValidTemplate()) {
-        pageWidth = Rez::guiX(m_vpPage->getDrawPage()->getPageWidth());
-        pageHeight = Rez::guiX(m_vpPage->getDrawPage()->getPageHeight());
-    }
-
-    // Draw the white page
-    QRectF paperRect(0, -pageHeight, pageWidth, pageHeight);
-    QPolygon poly = mapFromScene(paperRect);
-
-    QBrush pageBrush(PreferencesGui::pageQColor());
-    painter->setBrush(pageBrush);
-
-    painter->drawRect(poly.boundingRect());
-
     painter->restore();
 }