Switch from DocketEntry widget to ItemDelegate.

We were using a subclassed QTextEdit widget so that we could capture
clicks on anchors.

Moving to a delegate removed the widget per row issue.  Unfortunately,
there was no more click on anchor.

Adding a mouseEvent() to the TableView allowed us to translate raw
mouse presses to anchor triggers.

Fixes: #18

dockettableview.py

@@ -1,22 +1,22 @@
 from typing import cast
 
 from PySide6.QtCore import (
-    QAbstractItemModel,
     QDir,
     QFile,
     QModelIndex,
-    QObject,
     QPersistentModelIndex,
     QPoint,
+    QPointF,
+    QRect,
     QSize,
     Qt,
     QUrl,
     Signal,
     Slot,
-)
+    )
 from PySide6.QtGui import (
     QMouseEvent,
-    QPalette,
+    QPainter,
     QTextDocument,
 )
 from PySide6.QtNetwork import (
@@ -26,7 +26,7 @@ from PySide6.QtNetwork import (
 )
 from PySide6.QtWidgets import (
     QAbstractItemView,
-    QSizePolicy,
+    QStyle,
     QStyledItemDelegate,
     QStyleOptionViewItem,
     QTableView,
@@ -34,7 +34,7 @@ from PySide6.QtWidgets import (
     QWidget,
 )
 
-from docketModel import docketModel
+from lib.utils import QStyleOptionViewItemInit
 from pdfView import PDFViewer
 
 
@@ -48,41 +48,32 @@ class docketEntryDelegate(QStyledItemDelegate):
 
     def sizeHint(
         self,
-        _: QStyleOptionViewItem,
+        option: QStyleOptionViewItem,
         index: QModelIndex | QPersistentModelIndex,
     ) -> QSize:
-        widget = self.view.indexWidget(index)
-        return widget.sizeHint()
-
-
-class docketEntry(QTextEdit):
-    def __init__(self, parent: QWidget | None = None) -> None:
-        super(docketEntry, self).__init__(parent)
-        self.setSizePolicy(
-            QSizePolicy.Policy.Preferred, QSizePolicy.Policy.Fixed
-        )
-        return
-
-    def mousePressEvent(self, e: QMouseEvent) -> None:
-        super().mousePressEvent(e)
-        anchor = self.anchorAt(e.pos())
-        if anchor:
-            obj = cast(QObject, self)
-            while not isinstance(obj, docketTableView) and obj is not None:
-                obj = obj.parent()
-            assert obj is not None
-            index = obj.indexAt(obj.mapFromGlobal(self.mapToGlobal(e.pos())))
-            obj.anchorSignal.emit(index, anchor)
-        return
-
-    def sizeHint(self) -> QSize:
-        size = self.size()
+        options = cast(QStyleOptionViewItemInit, option)
+        self.initStyleOption(options, index)
         doc = QTextDocument()
-        doc.setPlainText(self.document().toPlainText())
-        doc.setTextWidth(size.width())
-        docSize = doc.size()
-        return QSize(size.width(), int(docSize.height()))
+        doc.setHtml(options.text)
+        doc.setTextWidth(options.rect.width())
+        return QSize(int(doc.idealWidth()), int(doc.size().height()))
 
+    def paint(self, painter: QPainter, option: QStyleOptionViewItem, index: QModelIndex | QPersistentModelIndex) -> None:
+        options = cast(QStyleOptionViewItemInit, option)
+        self.initStyleOption(options, index)
+        painter.save()
+        
+        doc = QTextDocument()
+        doc.setHtml(options.text)
+        doc.setTextWidth(options.rect.width())
+
+        options.text = ''
+        options.widget.style().drawControl(QStyle.ControlElement.CE_ItemViewItem, options, painter)
+        painter.translate(options.rect.left(), options.rect.top())
+        clip = QRect(0,0, options.rect.width(), options.rect.height())
+        doc.drawContents(painter, clip)
+        painter.restore()
+        return
     
 class docketTableView(QTableView):
 
@@ -99,12 +90,6 @@ class docketTableView(QTableView):
         self.manager.finished.connect(self.getDone)
         return
 
-    def setModel(self, model: QAbstractItemModel | None) -> None:
-        assert model is not None
-        super().setModel(model)
-        self.model().modelReset.connect(self.modelReset)
-        return
-
     @Slot(QNetworkReply)  # type: ignore
     def getDone(self, reply: QNetworkReply) -> None:
         dest = QFile("." + reply.url().path())
@@ -136,16 +121,33 @@ class docketTableView(QTableView):
             self.manager.get(QNetworkRequest(url))
         return
 
-    def modelReset(self) -> None:
-        model = self.model()
-        red = QPalette()
-        red.setColor(QPalette.ColorRole.Base, Qt.GlobalColor.red)
-        for row in range(0, model.rowCount()):
-            index = model.index(row, docketModel.ColumnNames.text)
-            widget = docketEntry()
-            widget.setHtml(model.data(index, Qt.ItemDataRole.DisplayRole))
-            widget.setAutoFillBackground(False)
-            widget.setReadOnly(True)
-            widget.setPalette(red)
-            self.setIndexWidget(index, widget)
+    def mousePressEvent(self, event: QMouseEvent) -> None:
+        #
+        # The mouse has been pressed somewere in our rect.  We need to translate that to a click
+        # within the cell with the document.  This will allow the document to find anchors.
+        #
+        index = self.indexAt(event.pos())
+        if not index.isValid():
+            return
+        if index.column() != 1:
+            return
+        doc = QTextDocument()
+        doc.setHtml(index.data(Qt.ItemDataRole.DisplayRole))
+        doc.setTextWidth(self.columnWidth(index.column()))
+        #
+        # We need to map our click position to a position within the cell.
+        #
+        pos = event.position()
+        new_pos = QPointF(pos.x() - self.horizontalScrollBar().value(),
+                         pos.y() - self.verticalScrollBar().value())
+        rowHeight = 0
+        for row in range(0, index.row()):
+            rowHeight += self.rowHeight(row)
+        cell_pos = QPointF(new_pos.x() - self.columnWidth(0),
+                           new_pos.y() - rowHeight)
+        te = QTextEdit()
+        te.setDocument(doc)
+        anchor = te.anchorAt(cell_pos.toPoint())
+        if anchor:
+            self.anchorSignal.emit(index,anchor)
         return