Add link handler only once for each basic block

[frida/frida.git] / src / gui / widgets / BasicBlockWidget.cxx

diff --git a/src/gui/widgets/BasicBlockWidget.cxx b/src/gui/widgets/BasicBlockWidget.cxx
index eccb679f35e971a2749d9a721c3153334be84bd7..0036bda65180ea76cfa8e787332109a597cccfcb 100644 (file)
--- a/src/gui/widgets/BasicBlockWidget.cxx
+++ b/src/gui/widgets/BasicBlockWidget.cxx
@@ -1,19 +1,83 @@
 #include "BasicBlockWidget.hxx"
 #include "gui/Mainwindow.hxx"
+#include "gui/dialogs/SimpleStringDialog.hxx"
+#include "core/BasicBlock.hxx"
+
+class CustomQGraphicsTextItem : public QObject, public QGraphicsTextItem {
+public:
+       CustomQGraphicsTextItem(const QString& text, BasicBlockWidget* parent)
+               : QGraphicsTextItem(text, parent), parent(parent) {}
+       void contextMenuEvent(QGraphicsSceneContextMenuEvent*);
+private:
+       void addComment(QTextTableCell cell, const QString& title);
+
+       BasicBlockWidget* parent;
+};
+
+void CustomQGraphicsTextItem::addComment(QTextTableCell cell, const QString& title) {
+       SimpleStringDialog dialog(title);
+       int result = dialog.exec();
+       if (QDialog::Accepted == result) {
+               LOG4CXX_DEBUG(parent->logger, "adding comment " << dialog.result().toStdString()
+                             << " at row " << cell.row());
+               cell.firstCursorPosition().insertHtml(QString(";; ") + dialog.result());
+       } else {
+               LOG4CXX_DEBUG(parent->logger, "addComment aborted");
+       }
+}
+
+void CustomQGraphicsTextItem::contextMenuEvent(QGraphicsSceneContextMenuEvent* event) {
+       QTextCursor c = textCursor();
+       c.setPosition(document()->documentLayout()->hitTest(event->pos(), Qt::FuzzyHit));
+       c.select(QTextCursor::WordUnderCursor);
+
+       QMenu menu;
+       bool ok;
+       uint64_t address = c.selectedText().toLongLong(&ok, 16);
+       if (ok) {
+               QAction* act = menu.addAction(c.selectedText() + " is a Function");
+               QObject::connect(act, &QAction::triggered,
+                                [=]() {parent->mainwindow->requestNewFunctionByAddress(address);});
+       }
+
+       QTextTable* table = c.currentTable();
+       if (NULL != table) {
+               int row = table->cellAt(c).row();
+               QTextTableCell cell = table->cellAt(row, 2);
+               QAction* globalComment = menu.addAction("Add global Comment");
+               QAction* localComment = menu.addAction("Add local Comment");
+
+               QObject::connect(globalComment, &QAction::triggered,
+                                [=]() { addComment(cell, "Global comment"); });
+               QObject::connect(localComment, &QAction::triggered,
+                                [=]() { addComment(cell, "Local comment"); });
+       }
+
+       menu.exec(event->screenPos());
+}
 
 BasicBlockWidget::BasicBlockWidget(const QString& name, BasicBlock * block,
                                    Mainwindow * mainwindow)
-       : width(270), height(45)
-       , _widget("", this)
-       , _table(NULL), name(name)
-       , block(block), mainwindow(mainwindow) {
+       : width(270), height(45), name(name)
+       , _table(NULL)
+       , block(block), mainwindow(mainwindow)
+       , logger(log4cxx::Logger::getLogger(name.toStdString() + "BasicBlock")) {
        next[0] = NULL; next[1] = NULL;
-       _widget.setTextInteractionFlags(Qt::TextSelectableByMouse|
+       _widget.reset(new CustomQGraphicsTextItem("", this));
+       _widget->setPos(5, 20);
+       _widget->setTextInteractionFlags(Qt::TextSelectableByMouse|
                                        Qt::LinksAccessibleByMouse);
 
-       _widget.setPos(5, 20);
-
        if (width < 250) width = 250;
+
+       QObject::connect(_widget.get(), &QGraphicsTextItem::linkActivated,
+                        [=](QString str) {
+                                if (str.startsWith("function:")) {
+                                        QString address = str.remove("function:");
+                                        mainwindow->switchMainPlaneToAddress(address.toInt(NULL, 16));
+                                }
+                        });
+}
 }
 
 void BasicBlockWidget::addItem(uint8_t* bytes, size_t num_bytes,
@@ -29,7 +93,7 @@ void BasicBlockWidget::addItem(uint8_t* bytes, size_t num_bytes,
                QTextTableFormat format;
                format.setBorderStyle(QTextFrameFormat::BorderStyle_None);
                format.setBorder(0);
-               _table = _widget.textCursor().insertTable(1, 3, format);
+               _table = _widget->textCursor().insertTable(1, 3, format);
        }
 
        for (size_t i(0); i < num_bytes; ++i) {
@@ -47,17 +111,30 @@ void BasicBlockWidget::addItem(uint8_t* bytes, size_t num_bytes,
        }
 
        _table->cellAt(row, 1).firstCursorPosition().insertHtml(line);
+}
 
-       QObject::connect(&_widget, &QGraphicsTextItem::linkActivated,
-                        [=](QString str) {
-                                if (str.startsWith("function:")) {
-                                        QString address = str.remove("function:");
-                                        mainwindow->switchMainPlaneToAddress(address.toInt(NULL, 16));
-                                }
-                        });
+void BasicBlockWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+                  QWidget *widget) {
+       width = 10 + _widget->boundingRect().width();
+       height = 25 + _widget->boundingRect().height();
+       if (width < 250) width = 250;
 
-       width = 10 + _widget.boundingRect().width();
-       height = 25 + _widget.boundingRect().height();
+       painter->fillRect(0, 0, width, height, QColor(0xcc, 0xcc, 0xff, 0xff));
+       painter->setPen(QColor(0x00, 0x00, 0xff, 0xff));
+       painter->drawRect(0, 0, width, height);
+       painter->drawText(5, 15, name);
+}
 
-       if (width < 250) width = 250;
+QRectF BasicBlockWidget::boundingRect() const  {
+       qreal penWidth = 1;
+       QRectF result(- penWidth / 2, - penWidth / 2,
+                     width + penWidth, height + penWidth);
+       return result;
+}
+
+std::array<QPointF, 3> BasicBlockWidget::getExits() const {
+       return { { mapToScene(QPointF(  width/3, height)),
+                          mapToScene(QPointF(  width/2, height)),
+                          mapToScene(QPointF(2*width/3, height)) } };
 }
+