3 files changed, 23 insertions, 2 deletions
diff --git a/qtmips_gui/programdock.cpp b/qtmips_gui/programdock.cpp
index a355b22..0466cc2 100644
--- a/qtmips_gui/programdock.cpp
+++ b/qtmips_gui/programdock.cpp
@@ -97,6 +97,8 @@ ProgramDock::ProgramDock(QWidget *parent, QSettings *settings) : Super(parent) {
             this, SLOT(set_follow_inst(int)));
     connect(this, SIGNAL(focus_addr(std::uint32_t)),
             program_content, SLOT(focus_address(std::uint32_t)));
+    connect(program_content, SIGNAL(doubleClicked(QModelIndex)),
+            program_model, SLOT(toggle_hw_break(QModelIndex)));
 }
 
 void ProgramDock::setup(machine::QtMipsMachine *machine) {
diff --git a/qtmips_gui/programmodel.cpp b/qtmips_gui/programmodel.cpp
index 19b0f0d..4a758b7 100644
--- a/qtmips_gui/programmodel.cpp
+++ b/qtmips_gui/programmodel.cpp
@@ -113,15 +113,18 @@ QVariant ProgramModel::data(const QModelIndex &index, int role) const {
     if (role == Qt::BackgroundRole) {
         std::uint32_t address;
         if (!get_row_address(address, index.row()) ||
-            machine == nullptr || index.column() != 2)
+            machine == nullptr)
             return QVariant();
-        if (machine->cache_program() != nullptr) {
+        if (index.column() == 2 && machine->cache_program() != nullptr) {
             machine::LocationStatus loc_stat;
             loc_stat = machine->cache_program()->location_status(address);
             if (loc_stat & machine::LOCSTAT_CACHED) {
                 QBrush bgd(Qt::lightGray);
                 return bgd;
             }
+        } else if (index.column() == 0 && machine->is_hwbreak(address)) {
+            QBrush bgd(Qt::red);
+            return bgd;
         }
         return QVariant();
     }
@@ -185,3 +188,18 @@ bool ProgramModel::adjustRowAndOffset(int &row, int optimal_row, std::uint32_t a
     }
     return get_row_for_address(row, address);
 }
+
+void ProgramModel::toggle_hw_break(const QModelIndex & index) {
+    std::uint32_t address;
+    if (index.column() != 0 || machine == nullptr)
+        return;
+
+    if (!get_row_address(address, index.row()))
+        return;
+
+    if (machine->is_hwbreak(address))
+        machine->remove_hwbreak(address);
+    else
+        machine->insert_hwbreak(address);
+    update_all();
+}
diff --git a/qtmips_gui/programmodel.h b/qtmips_gui/programmodel.h
index 4a17e99..a6db493 100644
--- a/qtmips_gui/programmodel.h
+++ b/qtmips_gui/programmodel.h
@@ -85,6 +85,7 @@ public:
 public slots:
     void setup(machine::QtMipsMachine *machine);
     void check_for_updates();
+    void toggle_hw_break(const QModelIndex & index);
 
 private:
     std::uint32_t index0_offset;