From 063da67766585bd1db5e8afd83e2f9eda88119c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Thu, 25 Jan 2018 17:37:34 +0100
Subject: Jump to pc address when program counter is double clicked

---
 qtmips_gui/coreview.cpp                | 2 ++
 qtmips_gui/coreview.h                  | 1 +
 qtmips_gui/coreview/programcounter.cpp | 7 +++++++
 qtmips_gui/coreview/programcounter.h   | 9 +++++++++
 qtmips_gui/mainwindow.cpp              | 1 +
 qtmips_gui/programdock.cpp             | 8 ++++++++
 qtmips_gui/programdock.h               | 5 +++++
 7 files changed, 33 insertions(+)

diff --git a/qtmips_gui/coreview.cpp b/qtmips_gui/coreview.cpp
index eb39a47..d811208 100644
--- a/qtmips_gui/coreview.cpp
+++ b/qtmips_gui/coreview.cpp
@@ -140,6 +140,8 @@ CoreViewScene::CoreViewScene(CoreView *view, machine::QtMipsMachine *machine) :
     connect(regs, SIGNAL(open_registers()), this, SIGNAL(request_registers()));
     connect(mem_program, SIGNAL(open_mem()), this, SIGNAL(request_program_memory()));
     connect(mem_data, SIGNAL(open_mem()), this, SIGNAL(request_data_memory()));
+    connect(ft.pc, SIGNAL(open_program()), this, SIGNAL(request_program_memory()));
+    connect(ft.pc, SIGNAL(jump_to_pc(std::uint32_t)), this, SIGNAL(request_jump_to_program_counter(std::uint32_t)));
 }
 
 CoreViewScene::~CoreViewScene() {
diff --git a/qtmips_gui/coreview.h b/qtmips_gui/coreview.h
index d5b39c1..5f74f4f 100644
--- a/qtmips_gui/coreview.h
+++ b/qtmips_gui/coreview.h
@@ -40,6 +40,7 @@ signals:
     void request_registers();
     void request_data_memory();
     void request_program_memory();
+    void request_jump_to_program_counter(std::uint32_t addr);
 
 protected:
     coreview::ProgramMemory *mem_program;
diff --git a/qtmips_gui/coreview/programcounter.cpp b/qtmips_gui/coreview/programcounter.cpp
index ab7d49b..5d34fac 100644
--- a/qtmips_gui/coreview/programcounter.cpp
+++ b/qtmips_gui/coreview/programcounter.cpp
@@ -10,6 +10,8 @@ using namespace coreview;
 //////////////////////
 
 ProgramCounter::ProgramCounter(machine::QtMipsMachine *machine) : QGraphicsObject(nullptr), name("PC", this), value(this) {
+    registers = machine->registers();
+
     QFont font;
 
     font.setPointSize(7);
@@ -49,6 +51,11 @@ const Connector *ProgramCounter::connector_out() const {
     return con_out;
 }
 
+void ProgramCounter::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event __attribute__((unused))) {
+    emit open_program();
+    emit jump_to_pc(registers->read_pc());
+}
+
 void ProgramCounter::pc_update(std::uint32_t val) {
     value.setText(QString("0x") + QString::number(val, 16));
 }
diff --git a/qtmips_gui/coreview/programcounter.h b/qtmips_gui/coreview/programcounter.h
index c60ad36..6b5772a 100644
--- a/qtmips_gui/coreview/programcounter.h
+++ b/qtmips_gui/coreview/programcounter.h
@@ -20,10 +20,19 @@ public:
     const Connector *connector_in() const;
     const Connector *connector_out() const;
 
+signals:
+    void open_program();
+    void jump_to_pc(std::uint32_t addr);
+
+protected:
+    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
+
 private slots:
     void pc_update(std::uint32_t val);
 
 private:
+    const machine::Registers *registers;
+
     QGraphicsSimpleTextItem name;
     QGraphicsSimpleTextItem value;
 
diff --git a/qtmips_gui/mainwindow.cpp b/qtmips_gui/mainwindow.cpp
index 0f5d11a..21581d2 100644
--- a/qtmips_gui/mainwindow.cpp
+++ b/qtmips_gui/mainwindow.cpp
@@ -100,6 +100,7 @@ void MainWindow::create_core(const machine::MachineConfig &config) {
     connect(corescene, SIGNAL(request_registers()), this, SLOT(show_registers()));
     connect(corescene, SIGNAL(request_program_memory()), this, SLOT(show_program()));
     connect(corescene, SIGNAL(request_data_memory()), this, SLOT(show_memory()));
+    connect(corescene, SIGNAL(request_jump_to_program_counter(std::uint32_t)), program, SLOT(jump_to_pc(std::uint32_t)));
 
     // Setup docks
     registers->setup(machine);
diff --git a/qtmips_gui/programdock.cpp b/qtmips_gui/programdock.cpp
index 3d881df..70d6a83 100644
--- a/qtmips_gui/programdock.cpp
+++ b/qtmips_gui/programdock.cpp
@@ -45,6 +45,10 @@ void ProgramView::setup(machine::QtMipsMachine *machine) {
         cb_single->setCurrentIndex(cb_pipelined->currentIndex() == 0 ? 0 : 1);
 }
 
+void ProgramView::jump_to_pc(std::uint32_t addr) {
+    set_focus(addr);
+}
+
 QList<QWidget*> ProgramView::row_widget(std::uint32_t address, QWidget *parent) {
     QList<QWidget*> widgs;
     QLabel *l;
@@ -86,3 +90,7 @@ ProgramDock::ProgramDock(QWidget *parent) : QDockWidget(parent) {
 void ProgramDock::setup(machine::QtMipsMachine *machine) {
     view->setup(machine);
 }
+
+void ProgramDock::jump_to_pc(std::uint32_t addr) {
+    view->jump_to_pc(addr);
+}
diff --git a/qtmips_gui/programdock.h b/qtmips_gui/programdock.h
index 9ed0896..156c380 100644
--- a/qtmips_gui/programdock.h
+++ b/qtmips_gui/programdock.h
@@ -16,6 +16,8 @@ public:
 
     void setup(machine::QtMipsMachine*);
 
+    void jump_to_pc(std::uint32_t);
+
 protected:
     QList<QWidget*> row_widget(std::uint32_t address, QWidget *parent);
 
@@ -35,6 +37,9 @@ public:
 
     void setup(machine::QtMipsMachine *machine);
 
+public slots:
+    void jump_to_pc(std::uint32_t);
+
 private:
     ProgramView *view;
 };
-- 
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