regtools/qeditor: use the new model, drop unused code

Change-Id: Ic4e2e201f6d055c85d52b7fe15d25980386df5b8
Reviewed-on: http://gerrit.rockbox.org/1023
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>

4 files changed, 67 insertions, 111 deletions

diff --git a/utils/regtools/qeditor/regdisplaypanel.cpp b/utils/regtools/qeditor/regdisplaypanel.cpp
index d450b4e203..bbfb4f5840 100644
--- a/utils/regtools/qeditor/regdisplaypanel.cpp
+++ b/utils/regtools/qeditor/regdisplaypanel.cpp
@@ -176,46 +176,17 @@ RegDisplayPanel::RegDisplayPanel(QWidget *parent, IoBackend *io_backend, const S
     raw_val_layout->addWidget(m_raw_val_edit);
     raw_val_layout->addStretch();
 
-    m_value_table = new GrowingTableWidget;
-    m_value_table->setRowCount(reg.field.size());
-    m_value_table->setColumnCount(5);
-    for(size_t row = 0; row < reg.field.size(); row++)
-    {
-        const soc_reg_field_t& field = reg.field[row];
-        QString bits_str;
-        if(field.first_bit == field.last_bit)
-            bits_str.sprintf("%d", field.first_bit);
-        else
-            bits_str.sprintf("%d:%d", field.last_bit, field.first_bit);
-        QTableWidgetItem *item = new QTableWidgetItem(bits_str);
-        item->setTextAlignment(Qt::AlignVCenter | Qt::AlignHCenter);
-        item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        m_value_table->setItem(row, FieldBitsColumn, item);
-        item = new QTableWidgetItem(QString(field.name.c_str()));
-        item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        m_value_table->setItem(row, FieldNameColumn, item);
-        item = new QTableWidgetItem();
-        item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        item->setData(Qt::DisplayRole, QVariant::fromValue(SocFieldCachedValue()));
-        item->setTextAlignment(Qt::AlignVCenter | Qt::AlignHCenter);
-        m_value_table->setItem(row, FieldValueColumn, item);
-        item = new QTableWidgetItem("");
-        item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        item->setTextAlignment(Qt::AlignVCenter | Qt::AlignHCenter);
-        m_value_table->setItem(row, FieldMeaningColumn, item);
-        item = new QTableWidgetItem(QString(field.desc.c_str()));
-        item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        m_value_table->setItem(row, FieldDescColumn, item);
-    }
-    m_value_table->setHorizontalHeaderItem(FieldBitsColumn, new QTableWidgetItem("Bits"));
-    m_value_table->setHorizontalHeaderItem(FieldNameColumn, new QTableWidgetItem("Name"));
-    m_value_table->setHorizontalHeaderItem(FieldValueColumn, new QTableWidgetItem("Value"));
-    m_value_table->setHorizontalHeaderItem(FieldMeaningColumn, new QTableWidgetItem("Meaning"));
-    m_value_table->setHorizontalHeaderItem(FieldDescColumn, new QTableWidgetItem("Description"));
+    m_value_table = new GrowingTableView;
+    m_value_model = new RegFieldTableModel(m_value_table); // view takes ownership
+    m_value_model->SetRegister(m_reg.GetReg());
+    m_value_model->SetReadOnly(read_only);
+    m_value_table->setModel(m_value_model);
     m_value_table->verticalHeader()->setVisible(false);
     m_value_table->resizeColumnsToContents();
     m_value_table->horizontalHeader()->setStretchLastSection(true);
     m_value_table->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+    // FIXME we cannot use setAlternatingRowColors() because we override the
+    // background color, should it be part of the model ?
 
     SocFieldCachedItemDelegate *m_table_delegate = new SocFieldCachedItemDelegate(this);
     m_table_edit_factory = new QItemEditorFactory();
@@ -253,12 +224,13 @@ RegDisplayPanel::RegDisplayPanel(QWidget *parent, IoBackend *io_backend, const S
     setLayout(layout);
     AllowWrite(false);
 
-    m_ignore_cell_change = false;
     // load data
     Reload();
 
-    connect(m_raw_val_edit->GetLineEdit(), SIGNAL(returnPressed()), this, SLOT(OnRawRegValueReturnPressed()));
-    connect(m_value_table, SIGNAL(cellChanged(int, int)), this, SLOT(OnRegFieldValueChanged(int, int)));
+    connect(m_raw_val_edit->GetLineEdit(), SIGNAL(returnPressed()), this,
+        SLOT(OnRawRegValueReturnPressed()));
+    connect(m_value_table->model(), SIGNAL(OnValueModified(int)), this,
+        SLOT(OnRegValueChanged(int)));
 }
 
 RegDisplayPanel::~RegDisplayPanel()
@@ -280,38 +252,15 @@ void RegDisplayPanel::Reload()
         m_raw_val_name->show();
         m_raw_val_edit->show();
         m_raw_val_edit->GetLineEdit()->setText(QString().sprintf("0x%08x", value));
+        m_value_model->SetValues(QVector< QVariant >(1, QVariant(value)));
     }
     else
     {
         m_raw_val_name->hide();
         m_raw_val_edit->hide();
+        m_value_model->SetValues(QVector< QVariant >());
     }
 
-    m_ignore_cell_change = true;
-    for(size_t row = 0; row < reg.field.size(); row++)
-    {
-        const soc_reg_field_t& field = reg.field[row];
-        QTableWidgetItem *item = m_value_table->item(row, FieldValueColumn);
-        QTableWidgetItem *desc_item = m_value_table->item(row, FieldMeaningColumn);
-        if(has_value)
-        {
-            soc_word_t v = (value & field.bitmask()) >> field.first_bit;
-            QString value_name;
-            foreach(const soc_reg_field_value_t& rval, field.value)
-                if(v == rval.value)
-                    value_name = rval.name.c_str();
-            item->setData(Qt::DisplayRole, QVariant::fromValue(SocFieldCachedValue(field, v)));
-            if(value_name.size() != 0)
-                desc_item->setText(value_name);
-        }
-        else
-            item->setData(Qt::DisplayRole, QVariant::fromValue(SocFieldCachedValue()));
-        item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        if(m_allow_write)
-            item->setFlags(item->flags() | Qt::ItemIsEditable);
-    }
-    m_ignore_cell_change = false;
-
     m_value_table->resizeColumnsToContents();
     m_value_table->horizontalHeader()->setStretchLastSection(true);
 }
@@ -320,7 +269,10 @@ void RegDisplayPanel::AllowWrite(bool en)
 {
     m_allow_write = en;
     if(m_raw_val_edit)
+    {
         m_raw_val_edit->SetReadOnly(m_io_backend->IsReadOnly() || !m_allow_write);
+        m_value_model->SetReadOnly(m_io_backend->IsReadOnly() || !m_allow_write);
+    }
     Reload();
 }
 
@@ -348,23 +300,19 @@ void RegDisplayPanel::OnRawRegValueReturnPressed()
     BackendHelper helper(m_io_backend, m_reg);
     helper.WriteRegister(m_reg.GetDevAddr().name.c_str(), m_reg.GetRegAddr().name.c_str(),
         val, mode);
+    // register write can change all fields
     Reload();
 }
 
-void RegDisplayPanel::OnRegFieldValueChanged(int row, int col)
+void RegDisplayPanel::OnRegValueChanged(int index)
 {
-    if(m_ignore_cell_change || col != FieldValueColumn)
+    QVariant var = m_value_model->GetValue(index);
+    if(!var.isValid())
         return;
-    QTableWidgetItem *item = m_value_table->item(row, col);
-    SocFieldCachedValue val = item->data(Qt::DisplayRole).value< SocFieldCachedValue >();
     BackendHelper helper(m_io_backend, m_reg);
-    soc_word_t regval;
-    if(!helper.ReadRegister(m_reg.GetDevAddr().name.c_str(), m_reg.GetRegAddr().name.c_str(), regval))
-        return;
-    regval = (regval & ~val.field().bitmask()) |
-        ((val.value() << val.field().first_bit) & val.field().bitmask());
     helper.WriteRegister(m_reg.GetDevAddr().name.c_str(), m_reg.GetRegAddr().name.c_str(),
-        regval, IoBackend::Write);
+        var.value< soc_word_t >(), IoBackend::Write);
+    // register write can change all fields
     Reload();
 }
 
diff --git a/utils/regtools/qeditor/regdisplaypanel.h b/utils/regtools/qeditor/regdisplaypanel.h
index ce6f108350..09943b59a2 100644
--- a/utils/regtools/qeditor/regdisplaypanel.h
+++ b/utils/regtools/qeditor/regdisplaypanel.h
@@ -86,7 +86,8 @@ protected:
     bool m_allow_write;
     RegLineEdit *m_raw_val_edit;
     RegSexyDisplay *m_sexy_display;
-    GrowingTableWidget *m_value_table;
+    GrowingTableView *m_value_table;
+    RegFieldTableModel *m_value_model;
     QStyledItemDelegate *m_table_delegate;
     QItemEditorFactory *m_table_edit_factory;
     RegItemEditorCreator *m_regedit_creator;
@@ -95,11 +96,10 @@ protected:
     QLabel *m_desc;
     QWidget *m_viewport;
     QScrollArea *m_scroll;
-    bool m_ignore_cell_change;
 
 private slots:
     void OnRawRegValueReturnPressed();
-    void OnRegFieldValueChanged(int row, int col);
+    void OnRegValueChanged(int index);
 };
 
 #endif /* REGDISPLAYPANEL_H */ 
diff --git a/utils/regtools/qeditor/utils.cpp b/utils/regtools/qeditor/utils.cpp
index 036f1595a3..448ed92c3e 100644
--- a/utils/regtools/qeditor/utils.cpp
+++ b/utils/regtools/qeditor/utils.cpp
@@ -331,7 +331,22 @@ QString SocFieldCachedItemDelegate::displayText(const QVariant& value, const QLo
     {
         const SocFieldCachedValue& v = value.value< SocFieldCachedValue >();
         int bitcount = v.field().last_bit - v.field().first_bit;
-        return QString("0x%1").arg(v.value(), (bitcount + 3) / 4, 16, QChar('0'));
+        QString name = v.value_name();
+        QString strval = QString("0x%1").arg(v.value(), (bitcount + 3) / 4, 16, QChar('0'));
+        switch(m_mode)
+        {
+            case DisplayName:
+                if(name.size() > 0)
+                    return name;
+                /* fallthrough */
+            case DisplayValueAndName:
+                if(name.size() > 0)
+                    return QString("%1 (%2)").arg(strval).arg(name);
+                /* fallthrough */
+            case DisplayValue:
+            default:
+                return strval;
+        }
     }
     else
         return QStyledItemDelegate::displayText(value, locale);
@@ -528,34 +543,25 @@ void RegSexyDisplay::paintEvent(QPaintEvent *event)
 }
 
 /**
- * GrowingTextEdit
+ * GrowingTableView
  */
-GrowingTextEdit::GrowingTextEdit(QWidget *parent)
-    :QTextEdit(parent)
-{
-    connect(this, SIGNAL(textChanged()), this, SLOT(TextChanged()));
-    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
-    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-}
-
-void GrowingTextEdit::TextChanged()
+GrowingTableView::GrowingTableView(QWidget *parent)
+    :QTableView(parent)
 {
-    int content_size = document()->documentLayout()->documentSize().height();
-    content_size = qMax(content_size, fontMetrics().height());
-    setFixedHeight(content_size + contentsMargins().top() + contentsMargins().bottom());
 }
 
-/**
- * GrowingTableWidget
- */
-GrowingTableWidget::GrowingTableWidget(QWidget *parent)
-    :QTableWidget(parent)
+void GrowingTableView::setModel(QAbstractItemModel *m)
 {
+    if(model())
+        disconnect(model(), SIGNAL(dataChanged(const QModelIndex&, const QModelIndex&)),
+        this, SLOT(DataChanged(const QModelIndex&, const QModelIndex&)));
+    QTableView::setModel(m);
     connect(model(), SIGNAL(dataChanged(const QModelIndex&, const QModelIndex&)),
         this, SLOT(DataChanged(const QModelIndex&, const QModelIndex&)));
+    DataChanged(QModelIndex(), QModelIndex());
 }
 
-void GrowingTableWidget::DataChanged(const QModelIndex& tl, const QModelIndex& br)
+void GrowingTableView::DataChanged(const QModelIndex& tl, const QModelIndex& br)
 {
     Q_UNUSED(tl);
     Q_UNUSED(br);
@@ -563,7 +569,7 @@ void GrowingTableWidget::DataChanged(const QModelIndex& tl, const QModelIndex& b
     resizeColumnsToContents();
     int h = contentsMargins().top() + contentsMargins().bottom();
     h += horizontalHeader()->height();
-    for(int i = 0; i < rowCount(); i++)
+    for(int i = 0; i < model()->rowCount(); i++)
         h += rowHeight(i);
     setMinimumHeight(h);
 }
diff --git a/utils/regtools/qeditor/utils.h b/utils/regtools/qeditor/utils.h
index 970010233a..6612ce20a4 100644
--- a/utils/regtools/qeditor/utils.h
+++ b/utils/regtools/qeditor/utils.h
@@ -149,9 +149,20 @@ Q_DECLARE_METATYPE(SocFieldCachedValue)
 class SocFieldCachedItemDelegate : public QStyledItemDelegate
 {
 public:
-    SocFieldCachedItemDelegate(QObject *parent = 0):QStyledItemDelegate(parent) {}
+    enum DisplayMode
+    {
+        DisplayValueAndName, /* "value (name)" or "value" if no name */
+        DisplayName, /* "name" or "value" if no name */
+        DisplayValue, /* "value" */
+    };
 
+    SocFieldCachedItemDelegate(QObject *parent = 0):QStyledItemDelegate(parent) {}
     virtual QString displayText(const QVariant& value, const QLocale& locale) const;
+    void SetMode(DisplayMode mode) { m_mode = mode; }
+    DisplayMode GetMode() const { return m_mode; }
+
+protected:
+    DisplayMode m_mode;
 };
 
 class SocFieldCachedEditor : public SocFieldEditor
@@ -203,21 +214,12 @@ private:
     mutable QSize m_size;
 };
 
-class GrowingTextEdit : public QTextEdit
-{
-    Q_OBJECT
-public:
-    GrowingTextEdit(QWidget *parent = 0);
-
-protected slots:
-    void TextChanged();
-};
-
-class GrowingTableWidget : public QTableWidget
+class GrowingTableView : public QTableView
 {
     Q_OBJECT
 public:
-    GrowingTableWidget(QWidget *parent = 0);
+    GrowingTableView(QWidget *parent = 0);
+    virtual void setModel(QAbstractItemModel *model);
 
 protected slots:
     void DataChanged(const QModelIndex& tl, const QModelIndex& br);