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#ifndef _CUSTOM_RENDERERS_H_
#define _CUSTOM_RENDERERS_H_
#include <gtkmm/cellrendererspin.h>
#include <gtkmm/treeview.h>
#include <sstream>
#include <limits>
//==============================================================================
template <class Renderer>
class CellRendererProxy : public Renderer
{
public:
CellRendererProxy() : Glib::ObjectBase(typeid(CellRendererProxy)), Renderer() {}
virtual ~CellRendererProxy() {}
virtual void get_size_vfunc (Gtk::Widget& widget, const Gdk::Rectangle* cell_area, int* x_offset, int* y_offset, int* width, int* height) const
{ Renderer::get_size_vfunc (widget, cell_area, x_offset, y_offset, width, height); }
virtual void render_vfunc (const Glib::RefPtr<Gdk::Drawable>& window, Gtk::Widget& widget, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, const Gdk::Rectangle& expose_area, Gtk::CellRendererState flags)
{ Renderer::render_vfunc (window, widget, background_area, cell_area, expose_area, flags); }
virtual bool activate_vfunc (GdkEvent* event, Gtk::Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, Gtk::CellRendererState flags)
{ return Renderer::activate_vfunc (event, widget, path, background_area, cell_area, flags); }
virtual Gtk::CellEditable* start_editing_vfunc(GdkEvent* event, Gtk::Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, Gtk::CellRendererState flags)
{ return Renderer::start_editing_vfunc(event, widget, path, background_area, cell_area, flags); }
virtual void on_editing_canceled()
{ Renderer::on_editing_canceled(); }
};
class CustomRendererOps
{
public:
virtual ~CustomRendererOps() {};
virtual Gtk::CellRenderer* data_renderer() {return 0;}
};
//==============================================================================
template <typename Renderer, typename RendererValueType, typename ModelValueType>
class CustomRenderer : public Gtk::CellRenderer, public CustomRendererOps
{
public:
CustomRenderer();
virtual ~CustomRenderer() {}
virtual Glib::PropertyProxy_Base _property_renderable() { return property_data_; }
enum RendererType { rt_data, rt_pixbuf };
typedef CellRendererProxy<Renderer> RealRenderer;
RendererType _active_renderer_type;
RealRenderer _data_renderer;
CellRendererProxy<Gtk::CellRendererPixbuf> _pixbuf_renderer;
Glib::PropertyProxy<bool> property_editable() { return property_editable_; }
Glib::SignalProxy2<void, const RendererValueType&, const RendererValueType&> signal_edited()
{ return _data_renderer.signal_edited(); }
Gtk::TreeViewColumn * bind_columns(GridView *treeview, const std::string& name, int index, Gtk::TreeModelColumn<ModelValueType> *model_data_column, Gtk::TreeModelColumn<Glib::RefPtr<Gdk::Pixbuf> > *model_pixbuf_column);
sigc::slot<void, int> set_edit_state;
void floating_point_visible_scale(int val);
virtual Gtk::CellRenderer* data_renderer() {return &_data_renderer;}
protected:
Glib::Property<Glib::RefPtr<Gdk::Pixbuf> > _property_pixbuf;
Glib::Property<RendererValueType> _property_data;
Glib::Property<bool> _property_editable;
Glib::Property<bool> _property_cell_background_set;
Glib::Property<Glib::ustring> _property_cell_background;
Glib::Property<Gdk::Color> _property_cell_background_gdk;
Glib::PropertyProxy<Glib::RefPtr<Gdk::Pixbuf> > property_pixbuf_;
Glib::PropertyProxy<RendererValueType> property_data_;
Glib::PropertyProxy<bool> property_editable_;
Glib::PropertyProxy<RendererValueType> _data_renderer_data;
Glib::PropertyProxy<bool> property_cell_background_set_;
Glib::PropertyProxy<Glib::ustring> property_cell_background_;
Glib::PropertyProxy<Gdk::Color> property_cell_background_gdk_;
virtual void get_size_vfunc (Gtk::Widget& widget, const Gdk::Rectangle* cell_area, int* x_offset, int* y_offset, int* width, int* height) const;
virtual void render_vfunc (const Glib::RefPtr<Gdk::Drawable>& window, Gtk::Widget& widget, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, const Gdk::Rectangle& expose_area, Gtk::CellRendererState flags);
virtual bool activate_vfunc (GdkEvent* event, Gtk::Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, Gtk::CellRendererState flags);
virtual Gtk::CellEditable* start_editing_vfunc(GdkEvent* event, Gtk::Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, Gtk::CellRendererState flags);
virtual void on_editing_canceled();
void on_editing_done(Gtk::CellEditable* editable);
virtual void on_data_changed();
virtual void on_pixbuf_changed();
virtual void on_editable_changed();
virtual void on_cell_background_set_changed();
virtual void on_cell_background_changed();
virtual void on_cell_background_gdk_changed();
private:
void on_cell_data(Gtk::CellRenderer*, const Gtk::TreeModel::iterator&, Gtk::TreeView *tree);
Gtk::TreeModelColumn<ModelValueType> *_model_data_column;
Gtk::TreeModelColumn<Glib::RefPtr<Gdk::Pixbuf> > *_model_pixbuf_column;
bool _editing;
GridView *_treeview;
sigc::slot<void> _on_editing_done;
Gtk::TreeModel::Path _editing_path;
std::string _floating_point_visible_scale;
int _column_index;
};
//==============================================================================
template <typename Renderer, typename ModelValueType>
void init_data_renderer(Renderer *renderer)
{
}
//------------------------------------------------------------------------------
template <typename Renderer, typename ModelValueType>
void init_data_renderer(Gtk::CellRendererSpin *renderer)
{
renderer->property_adjustment()= manage(new Gtk::Adjustment (0, std::numeric_limits<ModelValueType>::min(), std::numeric_limits<ModelValueType>::max()));
}
//==============================================================================
template <typename Renderer, typename RendererValueType, typename ModelValueType>
CustomRenderer<Renderer, RendererValueType, ModelValueType>::CustomRenderer()
:Glib::ObjectBase(typeid(CustomRenderer)),
Gtk::CellRenderer(),
_active_renderer_type(rt_pixbuf),
_data_renderer(),
_pixbuf_renderer(),
_property_pixbuf(*this, _pixbuf_renderer._property_renderable().get_name()),
_property_data(*this, _data_renderer._property_renderable().get_name()),
_property_editable(*this, _data_renderer.property_editable().get_name()),
_property_cell_background_set(*this, _data_renderer.property_cell_background_set().get_name()),
_property_cell_background(*this, _data_renderer.property_cell_background().get_name()),
_property_cell_background_gdk(*this, _data_renderer.property_cell_background_gdk().get_name()),
property_pixbuf_(this, _pixbuf_renderer._property_renderable().get_name()),
property_data_(this, _data_renderer._property_renderable().get_name()),
property_editable_(this, _data_renderer.property_editable().get_name()),
_data_renderer_data(&_data_renderer, _data_renderer._property_renderable().get_name()),
property_cell_background_set_(this, _data_renderer.property_cell_background_set().get_name()),
property_cell_background_(this, _data_renderer.property_cell_background().get_name()),
property_cell_background_gdk_(this, _data_renderer.property_cell_background_gdk().get_name()),
_model_data_column(NULL),
_model_pixbuf_column(NULL),
_editing(false),
_treeview(NULL),
_floating_point_visible_scale("%.3f"),
_column_index(-1)
{
_pixbuf_renderer.property_xalign()= _data_renderer.property_xalign().get_value();
property_data_.signal_changed().connect(sigc::mem_fun(*this, &CustomRenderer::on_data_changed));
property_pixbuf_.signal_changed().connect(sigc::mem_fun(*this, &CustomRenderer::on_pixbuf_changed));
property_editable_.signal_changed().connect(sigc::mem_fun(*this, &CustomRenderer::on_editable_changed));
property_cell_background_set_.signal_changed().connect(sigc::mem_fun(*this, &CustomRenderer::on_cell_background_set_changed));
property_cell_background_.signal_changed().connect(sigc::mem_fun(*this, &CustomRenderer::on_cell_background_changed));
property_cell_background_gdk_.signal_changed().connect(sigc::mem_fun(*this, &CustomRenderer::on_cell_background_gdk_changed));
init_data_renderer<Renderer, ModelValueType>(&_data_renderer);
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
floating_point_visible_scale(int val)
{
if ((val >=0) && (val < 15))
{
std::ostringstream oss;
oss << "%." << val << "f";
_floating_point_visible_scale= oss.str();
}
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
on_data_changed()
{
_data_renderer_data= _property_data.get_value();
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
on_pixbuf_changed()
{
_active_renderer_type= (_pixbuf_renderer.property_pixbuf().get_value() ? rt_pixbuf : rt_data);
_pixbuf_renderer.property_pixbuf()= _property_pixbuf;
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
on_editable_changed()
{
_data_renderer.property_editable()= _property_editable;
property_mode()= _data_renderer.property_mode().get_value();
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
on_cell_background_set_changed()
{
_data_renderer.property_cell_background_set()= _property_cell_background_set;
_pixbuf_renderer.property_cell_background_set()= _property_cell_background_set;
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
on_cell_background_changed()
{
_data_renderer.property_cell_background()= _property_cell_background;
_pixbuf_renderer.property_cell_background()= _property_cell_background;
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
on_cell_background_gdk_changed()
{
_data_renderer.property_cell_background_gdk()= _property_cell_background_gdk;
_pixbuf_renderer.property_cell_background_gdk()= _property_cell_background_gdk;
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
Gtk::TreeViewColumn *
CustomRenderer<Renderer, RendererValueType, ModelValueType>::bind_columns(
GridView *treeview,
const std::string& name,
int index,
Gtk::TreeModelColumn<ModelValueType> *model_data_column,
Gtk::TreeModelColumn<Glib::RefPtr<Gdk::Pixbuf> > *model_pixbuf_column
)
{
_treeview= treeview;
_column_index = index;
int column_count= treeview->insert_column_with_data_func(-1, name, *this,
sigc::bind(sigc::mem_fun(this, &CustomRenderer::on_cell_data), treeview));
Gtk::TreeViewColumn *treeview_column= treeview->get_column(column_count-1);
treeview_column->set_resizable(true);
_model_data_column= model_data_column;
treeview_column->set_renderer(*this, *model_data_column);
_model_pixbuf_column= model_pixbuf_column;
return treeview_column;
}
//------------------------------------------------------------------------------
template <typename RendererValueType, typename ModelValueType>
void load_cell_data(Glib::Property<RendererValueType> &prop, const ModelValueType &val, bool for_edit, const std::string &floating_point_visible_scale)
{
std::ostringstream oss;
oss << val;
prop= oss.str();
}
//------------------------------------------------------------------------------
template <typename RendererValueType>
void load_cell_data(Glib::Property<RendererValueType> &prop, const double &val, bool for_edit, const std::string &floating_point_visible_scale)
{
std::string s;
if (for_edit)
{
std::ostringstream oss;
oss.precision(15);
oss << val;
s= oss.str();
// remove trailing zeros
std::string::size_type point_pos= s.find_first_of(".,");
if (std::string::npos != point_pos)
{
std::string::reverse_iterator i= s.rbegin();
for (std::string::reverse_iterator end(s.rend()); i != end; ++i)
if (*i != '0')
break;
s.erase(i.base(), s.end());
}
}
else
{
char cstr[32];
sprintf(cstr, floating_point_visible_scale.c_str(), val);
s= cstr;
}
prop= s;
}
//------------------------------------------------------------------------------
template <typename RendererValueType>
void load_cell_data(Glib::Property<RendererValueType> &prop, const RendererValueType &val, bool for_edit, const std::string &floating_point_visible_scale)
{
prop= val;
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
on_cell_data(Gtk::CellRenderer* cr, const Gtk::TreeModel::iterator &iter, Gtk::TreeView *tree)
{
Gtk::TreeIter editing_iter;
if (!_editing_path.empty())
editing_iter= tree->get_model()->get_iter(_editing_path);
load_cell_data(_property_data, iter->get_value(*_model_data_column), (_editing && editing_iter == iter), _floating_point_visible_scale);
if (_model_pixbuf_column)
_property_pixbuf= iter->get_value(*_model_pixbuf_column);
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
get_size_vfunc(Gtk::Widget& widget, const Gdk::Rectangle* cell_area, int* x_offset, int* y_offset, int* width, int* height) const
{
_data_renderer.get_size_vfunc(widget, cell_area, x_offset, y_offset, width, height);
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::
render_vfunc(const Glib::RefPtr<Gdk::Drawable>& window, Gtk::Widget& widget, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, const Gdk::Rectangle& expose_area, Gtk::CellRendererState flags)
{
int row = -1;
Gtk::TreePath path;
if (_treeview->get_path_at_pos(cell_area.get_x()+1, cell_area.get_y()+1, path))
{
row = path[0];
if (row >= 0 && _column_index >= 0)
{
int srow, scol;
_treeview->current_cell(srow, scol);
if (_treeview->selection_is_cell() && srow >= 0 && scol >= 0 && srow == row && scol == _column_index)
{
_treeview->get_style()->paint_flat_box(Glib::RefPtr<Gdk::Window>::cast_dynamic(window), Gtk::STATE_SELECTED, Gtk::SHADOW_ETCHED_IN, background_area,
widget, "", background_area.get_x(), background_area.get_y(),
background_area.get_width(), background_area.get_height());
flags |= Gtk::CELL_RENDERER_SELECTED;
}
}
}
switch (_active_renderer_type)
{
case rt_data:
_data_renderer.render_vfunc(window, widget, background_area, cell_area, expose_area, flags);
break;
default:
_pixbuf_renderer.render_vfunc(window, widget, background_area, cell_area, expose_area, flags);
break;
}
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
bool CustomRenderer<Renderer, RendererValueType, ModelValueType>::
activate_vfunc(GdkEvent* event, Gtk::Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, Gtk::CellRendererState flags)
{
return _data_renderer.activate_vfunc(event, widget, path, background_area, cell_area, flags);
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
Gtk::CellEditable* CustomRenderer<Renderer, RendererValueType, ModelValueType>::
start_editing_vfunc(GdkEvent* event, Gtk::Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, Gtk::CellRendererState flags)
{
Gtk::TreeIter editing_iter = _treeview->get_model()->get_iter(path);
_editing_path= editing_iter;
_editing= true;
Gtk::TreePath tree_path(path);
int row_index= tree_path[0];
set_edit_state(row_index);
load_cell_data(_property_data, editing_iter->get_value(*_model_data_column), true, _floating_point_visible_scale);
Gtk::CellEditable* editable= _data_renderer.start_editing_vfunc(event, widget, path, background_area, cell_area, flags);
if (editable)
{
_on_editing_done= sigc::bind(sigc::mem_fun(this, &CustomRenderer::on_editing_done), editable);
editable->signal_editing_done().connect(_on_editing_done);
}
return editable;
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::on_editing_canceled()
{
_editing= false;
Gtk::TreePath path;
Gtk::TreeViewColumn *col;
_treeview->get_cursor(path, col);
if (!path.empty())
set_edit_state(path[0]);
_data_renderer.on_editing_canceled();
}
//------------------------------------------------------------------------------
template <typename Renderer, typename RendererValueType, typename ModelValueType>
void CustomRenderer<Renderer, RendererValueType, ModelValueType>::on_editing_done(Gtk::CellEditable* editable)
{
_editing= false;
Gtk::TreePath path;
Gtk::TreeViewColumn *col;
_treeview->get_cursor(path, col);
if (!path.empty())
set_edit_state(path[0]);
_on_editing_done.disconnect();
}
#endif // _CUSTOM_RENDERERS_H_
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