Initial add of files.

SeerStackLocalsBrowserWidget.cpp

@@ -0,0 +1,214 @@
+#include "SeerStackLocalsBrowserWidget.h"
+#include "SeerUtl.h"
+#include <QtWidgets/QTreeWidget>
+#include <QtWidgets/QTreeWidgetItemIterator>
+#include <QtWidgets/QApplication>
+#include <QtCore/QDebug>
+
+SeerStackLocalsBrowserWidget::SeerStackLocalsBrowserWidget (QWidget* parent) : QWidget(parent) {
+
+    // Construct the UI.
+    setupUi(this);
+
+    // Setup the widgets
+    localsTreeWidget->setSortingEnabled(false);
+    localsTreeWidget->resizeColumnToContents(0); // name
+    localsTreeWidget->resizeColumnToContents(1); // arg
+    localsTreeWidget->resizeColumnToContents(2); // value
+    localsTreeWidget->resizeColumnToContents(3); // used
+
+    localsTreeWidget->setColumnHidden(3, true); // Hide the 'used' column.
+
+    localsTreeWidget->clear();
+
+    _frameNumber = 0;
+
+    // Connect things.
+    QObject::connect(localsTreeWidget, &QTreeWidget::itemCollapsed,    this,  &SeerStackLocalsBrowserWidget::handleItemCollapsed);
+    QObject::connect(localsTreeWidget, &QTreeWidget::itemExpanded,     this,  &SeerStackLocalsBrowserWidget::handleItemExpanded);
+}
+
+SeerStackLocalsBrowserWidget::~SeerStackLocalsBrowserWidget () {
+}
+
+void SeerStackLocalsBrowserWidget::handleText (const QString& text) {
+
+    // Don't do any work if the widget is hidden.
+    if (isHidden()) {
+        return;
+    }
+
+    QApplication::setOverrideCursor(Qt::BusyCursor);
+
+    if (text.startsWith("^done,variables=[") && text.endsWith("]")) {
+
+        // Mark each entry initially as "unused".
+        // Later, some will be marked as "reused" or "new". Then the "unused" ones will
+        // be deleted.
+        QTreeWidgetItemIterator it(localsTreeWidget);
+        while (*it) {
+            (*it)->setText(3, "unused");
+            ++it;
+        }
+
+        // ^done,variables=[
+        //     {name=\"message\",arg=\"1\",value=\"\\\"Hello, World!\\\"\"},
+        //     {name=\"something\",arg=\"1\",value=\"\\\"Hello, World!\\\"\"}
+        // ]
+
+        //qDebug() << __PRETTY_FUNCTION__ << ":" << text;
+
+        QString frame_text = Seer::parseFirst(text, "variables=", '[', ']', false);
+
+        QStringList variable_list = Seer::parse(frame_text, "", '{', '}', false);
+
+        for ( const auto& variable_text : variable_list  ) {
+
+            QString name_text  = Seer::parseFirst(variable_text, "name=",  '"', '"', false);
+            QString arg_text   = Seer::parseFirst(variable_text, "arg=",   '"', '"', false);
+            QString value_text = Seer::parseFirst(variable_text, "value=", '"', '"', false);
+
+            // Instead of creating a new tree each time, we will reuse existing items, if they are there.
+            // This allows the expanded items to remain expanded.
+            QList<QTreeWidgetItem*> matches = localsTreeWidget->findItems(name_text, Qt::MatchExactly, 0);
+
+            // No matches. So can't reuse. Add the new entry.
+            if (matches.size() == 0) {
+
+                // Add a complex entry to the tree.
+                if (value_text.startsWith("{") && value_text.endsWith("}")) {
+
+                    QTreeWidgetItem* topItem = new QTreeWidgetItem;
+                    topItem->setText(0, name_text);
+                    topItem->setText(1, "");
+                    topItem->setText(2, "");
+                    topItem->setText(3, "new");
+
+                    localsTreeWidget->addTopLevelItem(topItem);
+
+                    QTreeWidgetItem* item = new QTreeWidgetItem;
+                    item->setText(0, name_text);
+                    item->setText(1, arg_text);
+                    item->setText(2, Seer::filterEscapes(value_text));
+                    item->setText(3, "new");
+
+                    topItem->addChild(item);
+
+                // Add the simple entry to the tree.
+                }else{
+                    QTreeWidgetItem* item = new QTreeWidgetItem;
+                    item->setText(0, name_text);
+                    item->setText(1, arg_text);
+                    item->setText(2, Seer::filterEscapes(value_text));
+                    item->setText(3, "new");
+
+                    localsTreeWidget->addTopLevelItem(item);
+                }
+
+            // Found a match. Reuse it.
+            }else{
+
+                QTreeWidgetItem* item = matches.takeFirst();
+
+                // Add a complex entry to the tree.
+                if (value_text.startsWith("{") && value_text.endsWith("}")) {
+                    // Complex entries have a child. Reuse one or create one.
+                    QTreeWidgetItem* child;
+
+                    if (item->childCount() > 0) {
+                        child = item->child(0);
+
+                    }else{
+                        child = new QTreeWidgetItem;
+                        item->addChild(item);
+                    }
+
+                    item->setText(0, name_text);
+                    item->setText(1, "");
+                    item->setText(2, "");
+                    item->setText(3, "reused");
+
+                    child->setText(0, name_text);
+                    child->setText(1, arg_text);
+                    child->setText(2, Seer::filterEscapes(value_text));
+                    child->setText(3, "reused");
+
+                // Add the simple entry to the tree.
+                }else{
+                    // Simple entries don't have children. Delete them.
+                    if (item->childCount() > 0) {
+                        QList<QTreeWidgetItem*> children = item->takeChildren();
+
+                        qDeleteAll(children);
+                    }
+
+                    item->setText(0, name_text);
+                    item->setText(1, arg_text);
+                    item->setText(2, Seer::filterEscapes(value_text));
+                    item->setText(3, "reused");
+                }
+            }
+        }
+
+        // At this point, there are some new entries, some reused entries, and some unused ones.
+        // Delete the unused ones. They are obsolete.
+        QList<QTreeWidgetItem*> matches = localsTreeWidget->findItems("unused", Qt::MatchExactly, 3);
+
+        qDeleteAll(matches);
+
+    }else if (text.startsWith("^error,msg=\"No registers.\"")) {
+        localsTreeWidget->clear();
+
+    }else{
+        // Ignore others.
+    }
+
+    localsTreeWidget->resizeColumnToContents(0);
+    localsTreeWidget->resizeColumnToContents(1);
+    localsTreeWidget->resizeColumnToContents(2);
+    localsTreeWidget->resizeColumnToContents(3);
+
+    QApplication::restoreOverrideCursor();
+}
+
+void SeerStackLocalsBrowserWidget::handleStoppingPointReached () {
+
+    // Don't do any work if the widget is hidden.
+    if (isHidden()) {
+        return;
+    }
+
+    refresh();
+}
+
+void SeerStackLocalsBrowserWidget::refresh () {
+    emit refreshStackLocals();
+}
+
+void SeerStackLocalsBrowserWidget::handleItemExpanded (QTreeWidgetItem* item) {
+
+    Q_UNUSED(item);
+
+    localsTreeWidget->resizeColumnToContents(0);
+    localsTreeWidget->resizeColumnToContents(1);
+    localsTreeWidget->resizeColumnToContents(2);
+    localsTreeWidget->resizeColumnToContents(3);
+}
+
+void SeerStackLocalsBrowserWidget::handleItemCollapsed (QTreeWidgetItem* item) {
+
+    Q_UNUSED(item);
+
+    localsTreeWidget->resizeColumnToContents(0);
+    localsTreeWidget->resizeColumnToContents(1);
+    localsTreeWidget->resizeColumnToContents(2);
+    localsTreeWidget->resizeColumnToContents(3);
+}
+
+void SeerStackLocalsBrowserWidget::showEvent (QShowEvent* event) {
+
+    QWidget::showEvent(event);
+
+    refresh();
+}
+