Move tablemodel into gui/models directory.

2 files changed, 344 insertions, 0 deletions

diff --git a/src/gui/models/tablemodel.cpp b/src/gui/models/tablemodel.cpp
new file mode 100644
index 000000000..aad66a6ad
--- /dev/null
+++ b/src/gui/models/tablemodel.cpp
@@ -0,0 +1,180 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2008-2009  The Mana World Development Team
+ *  Copyright (C) 2009-2010  The Mana Developers
+ *  Copyright (C) 2011-2014  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "gui/models/tablemodel.h"
+
+#include "utils/dtor.h"
+
+#include "gui/widgets/widget.h"
+
+#include "debug.h"
+
+void TableModel::installListener(TableModelListener *const listener)
+{
+    if (listener)
+        listeners.insert(listener);
+}
+
+void TableModel::removeListener(TableModelListener *const listener)
+{
+    if (listener)
+        listeners.erase(listener);
+}
+
+void TableModel::signalBeforeUpdate()
+{
+    for (std::set<TableModelListener *>::const_iterator it = listeners.begin();
+         it != listeners.end(); ++it)
+    {
+        (*it)->modelUpdated(false);
+    }
+}
+
+void TableModel::signalAfterUpdate()
+{
+    for (std::set<TableModelListener *>::const_iterator it = listeners.begin();
+         it != listeners.end(); ++it)
+    {
+        if (*it)
+            (*it)->modelUpdated(true);
+    }
+}
+
+
+#define WIDGET_AT(row, column) (((row) * mColumns) + (column))
+#define DYN_SIZE(h) ((h) >= 0)
+
+StaticTableModel::StaticTableModel(const int row, const int column) :
+    TableModel(),
+    mRows(row),
+    mColumns(column),
+    mHeight(1),
+    mTableModel(),
+    mWidths()
+{
+    mTableModel.resize(row * column, nullptr);
+    mWidths.resize(column, 1);
+}
+
+StaticTableModel::~StaticTableModel()
+{
+    delete_all(mTableModel);
+    mTableModel.clear();
+}
+
+void StaticTableModel::resize()
+{
+    mRows = getRows();
+    mColumns = getColumns();
+    mTableModel.resize(mRows * mColumns, nullptr);
+}
+
+void StaticTableModel::set(const int row, const int column,
+                           Widget *const widget)
+{
+    if (!widget || row >= mRows || row < 0
+        || column >= mColumns || column < 0)
+    {
+        // raise exn?
+        return;
+    }
+
+    if (DYN_SIZE(mHeight)
+        && widget->getHeight() > mHeight)
+    {
+        mHeight = widget->getHeight();
+    }
+
+    if (DYN_SIZE(mWidths[column])
+        && widget->getWidth() > mWidths[column])
+    {
+        mWidths[column] = widget->getWidth();
+    }
+
+    signalBeforeUpdate();
+
+    delete mTableModel[WIDGET_AT(row, column)];
+
+    mTableModel[WIDGET_AT(row, column)] = widget;
+
+    signalAfterUpdate();
+}
+
+Widget *StaticTableModel::getElementAt(const int row,
+                                       const int column) const
+{
+    return mTableModel[WIDGET_AT(row, column)];
+}
+
+void StaticTableModel::fixColumnWidth(const int column, const int width)
+{
+    if (width < 0 || column < 0 || column >= mColumns)
+        return;
+
+    mWidths[column] = -width;  // Negate to tag as fixed
+}
+
+void StaticTableModel::fixRowHeight(const int height)
+{
+    if (height < 0)
+        return;
+
+    mHeight = -height;
+}
+
+int StaticTableModel::getRowHeight() const
+{
+    return abs(mHeight);
+}
+
+int StaticTableModel::getColumnWidth(const int column) const
+{
+    if (column < 0 || column >= mColumns)
+        return 0;
+
+    return abs(mWidths[column]);
+}
+
+int StaticTableModel::getRows() const
+{
+    return mRows;
+}
+
+int StaticTableModel::getColumns() const
+{
+    return mColumns;
+}
+
+int StaticTableModel::getWidth() const
+{
+    int width = 0;
+
+    for (size_t i = 0, sz = mWidths.size(); i < sz; i++)
+        width += mWidths[i];
+
+    return width;
+}
+
+int StaticTableModel::getHeight() const
+{
+    return mColumns * mHeight;
+}
diff --git a/src/gui/models/tablemodel.h b/src/gui/models/tablemodel.h
new file mode 100644
index 000000000..ff752e6f1
--- /dev/null
+++ b/src/gui/models/tablemodel.h
@@ -0,0 +1,164 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2008-2009  The Mana World Development Team
+ *  Copyright (C) 2009-2010  The Mana Developers
+ *  Copyright (C) 2011-2014  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GUI_MODELS_TABLEMODEL_H
+#define GUI_MODELS_TABLEMODEL_H
+
+#include <set>
+#include <vector>
+
+#include "localconsts.h"
+
+class Widget;
+
+class TableModelListener
+{
+public:
+    /**
+     * Must be invoked by the TableModel whenever a global change is about to
+     * occur or has occurred (e.g., when a row or column is being removed or
+     * added).
+     *
+     * This method is triggered twice, once before and once after the update.
+     *
+     * \param completed whether we are signalling the end of the update
+     */
+    virtual void modelUpdated(const bool completed) = 0;
+
+    virtual ~TableModelListener()
+    { }
+};
+
+/**
+ * A model for a regular table of widgets.
+ */
+class TableModel
+{
+public:
+    virtual ~TableModel()
+    { }
+
+    /**
+     * Determines the number of rows (lines) in the table
+     */
+    virtual int getRows() const A_WARN_UNUSED = 0;
+
+    /**
+     * Determines the number of columns in each row
+     */
+    virtual int getColumns() const A_WARN_UNUSED = 0;
+
+    /**
+     * Determines the height for each row
+     */
+    virtual int getRowHeight() const A_WARN_UNUSED = 0;
+
+    /**
+     * Determines the width of each individual column
+     */
+    virtual int getColumnWidth(const int index) const A_WARN_UNUSED = 0;
+
+    /**
+     * Retrieves the widget stored at the specified location within the table.
+     */
+    virtual Widget *getElementAt(const int row, const int column)
+                                      const A_WARN_UNUSED = 0;
+
+    virtual void installListener(TableModelListener *const listener);
+
+    virtual void removeListener(TableModelListener *const listener);
+
+protected:
+    TableModel() :
+        listeners()
+    {
+    }
+
+    /**
+     * Tells all listeners that the table is about to see an update
+     */
+    virtual void signalBeforeUpdate();
+
+    /**
+     * Tells all listeners that the table has seen an update
+     */
+    virtual void signalAfterUpdate();
+
+private:
+    std::set<TableModelListener *> listeners;
+};
+
+
+class StaticTableModel final : public TableModel
+{
+public:
+    StaticTableModel(const int width, const int height);
+
+    A_DELETE_COPY(StaticTableModel)
+
+    ~StaticTableModel();
+
+    /**
+     * Inserts a widget into the table model.
+     * The model is resized to accomodate the widget's width and height,
+     * unless column width / row height have been fixed.
+     */
+    void set(const int row, const int column, Widget *const widget);
+
+    /**
+     * Fixes the column width for a given column; this overrides dynamic width
+     * inference.
+     *
+     * Semantics are undefined for width 0.
+     */
+    void fixColumnWidth(const int column, const int width);
+
+    /**
+     * Fixes the row height; this overrides dynamic height inference.
+     *
+     * Semantics are undefined for width 0.
+     */
+    void fixRowHeight(const int height);
+
+    /**
+     * Resizes the table model
+     */
+    void resize();
+
+    int getRows() const override final A_WARN_UNUSED;
+    int getColumns() const override final A_WARN_UNUSED;
+    int getRowHeight() const override final A_WARN_UNUSED;
+    int getWidth() const A_WARN_UNUSED;
+    int getHeight() const A_WARN_UNUSED;
+    int getColumnWidth(const int index) const override final A_WARN_UNUSED;
+    Widget *getElementAt(const int row,
+                              const int column) const
+                              override final A_WARN_UNUSED;
+
+protected:
+    int mRows, mColumns;
+    int mHeight;
+    std::vector<Widget *> mTableModel;
+    std::vector<int> mWidths;
+};
+
+#endif  // GUI_MODELS_TABLEMODEL_H