Add tab for loop station

drumpadfilesmodel.cpp

@@ -0,0 +1,129 @@
+#include "drumpadfilesmodel.h"
+
+#include <iterator>
+
+#include <QFont>
+#include <QColor>
+
+enum {
+    ColumnFilename,
+    ColumnColor,
+    ColumnStopOnRelease,
+    ColumnLooped,
+    ColumnChoke,
+    NumberOfColumns
+};
+
+DrumPadFilesModel::~DrumPadFilesModel() = default;
+
+const drumpad_presets::File &DrumPadFilesModel::getFile(const QModelIndex &index) const
+{
+    return getFile(index.row());
+}
+
+const drumpad_presets::File &DrumPadFilesModel::getFile(int row) const
+{
+    return m_files->at(row);
+}
+
+void DrumPadFilesModel::setPreset(const drumpad_presets::Preset &preset)
+{
+    beginResetModel();
+    m_files = preset.files;
+    endResetModel();
+}
+
+int DrumPadFilesModel::rowCount(const QModelIndex &parent) const
+{
+    Q_UNUSED(parent)
+
+    if (!m_files)
+        return 0;
+
+    return std::size(*m_files);
+}
+
+int DrumPadFilesModel::columnCount(const QModelIndex &parent) const
+{
+    Q_UNUSED(parent)
+
+    return NumberOfColumns;
+}
+
+QVariant DrumPadFilesModel::data(const QModelIndex &index, int role) const
+{
+    if (role != Qt::DisplayRole && role != Qt::EditRole && role != Qt::FontRole && role != Qt::ForegroundRole)
+        return {};
+
+    if (!m_files)
+        return {};
+    if (index.column() < 0)
+        return {};
+    if (index.column() >= NumberOfColumns)
+        return {};
+    if (index.row() < 0)
+        return {};
+    if (index.row() >= int(std::size(*m_files)))
+        return {};
+
+    const auto &file = getFile(index);
+
+    const auto handleData = [&](const auto &val) -> QVariant
+    {
+        if (!val)
+        {
+            if (role == Qt::DisplayRole)
+                return this->tr("(null)");
+            else if (role == Qt::FontRole)
+            {
+                QFont font;
+                font.setItalic(true);
+                return font;
+            }
+            else if (role == Qt::ForegroundRole)
+                return QColor{Qt::gray};
+            return {};
+        }
+
+        if (role == Qt::DisplayRole || role == Qt::EditRole)
+            return *val;
+
+        return {};
+    };
+
+    switch (index.column())
+    {
+    case ColumnFilename: return handleData(file.filename);
+    case ColumnColor: return handleData(file.color);
+    case ColumnStopOnRelease: return handleData(file.stopOnRelease);
+    case ColumnLooped: return handleData(file.looped);
+    case ColumnChoke: return handleData(file.choke);
+    }
+
+    Q_UNREACHABLE();
+}
+
+QVariant DrumPadFilesModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (role != Qt::DisplayRole && role != Qt::EditRole)
+        return {};
+
+    if (orientation != Qt::Horizontal)
+        return {};
+
+    if (section < 0)
+        return {};
+    if (section >= NumberOfColumns)
+        return {};
+
+    switch (section)
+    {
+    case ColumnFilename: return tr("filename");
+    case ColumnColor: return tr("color");
+    case ColumnStopOnRelease: return tr("stopOnRelease");
+    case ColumnLooped: return tr("looped");
+    case ColumnChoke: return tr("choke");
+    }
+
+    Q_UNREACHABLE();
+}