/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
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
*/
+/** @file src/wx/content_widget.h
+ * @brief ContentWidget class.
+ */
+
#ifndef DCPOMATIC_MULTIPLE_WIDGET_H
#define DCPOMATIC_MULTIPLE_WIDGET_H
#include <vector>
#include <wx/wx.h>
#include <wx/gbsizer.h>
+#include <wx/spinctrl.h>
#include <boost/function.hpp>
#include "wx_util.h"
-/** A widget which represents some Content state and which can be used
+/** @class ContentWidget
+ * @brief A widget which represents some Content state and which can be used
* when multiple pieces of content are selected.
*
* @param S Type containing the content being represented (e.g. VideoContent)
* @param T Type of the widget (e.g. wxSpinCtrl)
+ * @param U Data type of state as used by the model.
+ * @param V Data type of state as used by the view.
*/
-template <class S, class T>
+template <class S, class T, typename U, typename V>
class ContentWidget
{
public:
/** @param parent Parent window.
* @param wrapped Control widget that we are wrapping.
* @param property ContentProperty that the widget is handling.
- * @param getter Function on the Content to get the value.
- * @param setter Function on the Content to set the value.
+ * @param model_getter Function on the Content to get the value.
+ * @param model_setter Function on the Content to set the value.
*/
- ContentWidget (wxWindow* parent, T* wrapped, int property, boost::function<int (S*)> getter, boost::function<void (S*, int)> setter)
+ ContentWidget (
+ wxWindow* parent,
+ T* wrapped,
+ int property,
+ boost::function<U (S*)> model_getter,
+ boost::function<void (S*, U)> model_setter,
+ boost::function<U (V)> view_to_model,
+ boost::function<V (U)> model_to_view
+ )
: _wrapped (wrapped)
, _sizer (0)
, _button (new wxButton (parent, wxID_ANY, _("Multiple values")))
, _property (property)
- , _getter (getter)
- , _setter (setter)
+ , _model_getter (model_getter)
+ , _model_setter (model_setter)
+ , _view_to_model (view_to_model)
+ , _model_to_view (model_to_view)
, _ignore_model_changes (false)
{
_button->SetToolTip (_("Click the button to set all selected content to the same value."));
_button->Hide ();
_button->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&ContentWidget::button_clicked, this));
- _wrapped->Bind (wxEVT_COMMAND_SPINCTRL_UPDATED, boost::bind (&ContentWidget::view_changed, this));
}
- T* wrapped () const {
+ /** @return the widget that we are wrapping */
+ T* wrapped () const
+ {
return _wrapped;
}
typedef std::vector<boost::shared_ptr<S> > List;
+ /** Set the content that this control is working on (i.e. the selected content) */
void set_content (List content)
{
for (typename std::list<boost::signals2::connection>::iterator i = _connections.begin(); i != _connections.end(); ++i) {
i->disconnect ();
}
+
+ _connections.clear ();
_content = content;
}
}
- void add (wxGridBagSizer* sizer, wxGBPosition position)
+ /** Add this widget to a wxGridBagSizer */
+ void add (wxGridBagSizer* sizer, wxGBPosition position, wxGBSpan span = wxDefaultSpan)
{
_sizer = sizer;
_position = position;
- _sizer->Add (_wrapped, _position);
+ _span = span;
+ _sizer->Add (_wrapped, _position, _span);
}
+ /** Update the view from the model */
+ void update_from_model ()
+ {
+ if (_content.empty ()) {
+ set_single ();
+ return;
+ }
+
+ typename List::iterator i = _content.begin ();
+ U const v = boost::bind (_model_getter, _content.front().get())();
+ while (i != _content.end() && boost::bind (_model_getter, i->get())() == v) {
+ ++i;
+ }
+
+ if (i == _content.end ()) {
+ set_single ();
+ checked_set (_wrapped, _model_to_view (v));
+ } else {
+ set_multiple ();
+ }
+ }
+
+ void view_changed ()
+ {
+ _ignore_model_changes = true;
+ for (size_t i = 0; i < _content.size(); ++i) {
+ boost::bind (_model_setter, _content[i].get(), _view_to_model (wx_get (_wrapped))) ();
+ }
+ _ignore_model_changes = false;
+ }
+
private:
void set_single ()
_sizer->Detach (_button);
_button->Hide ();
- _sizer->Add (_wrapped, _position);
+ _sizer->Add (_wrapped, _position, _span);
_wrapped->Show ();
_sizer->Layout ();
}
_wrapped->Hide ();
_sizer->Detach (_wrapped);
_button->Show ();
- _sizer->Add (_button, _position);
+ _sizer->Add (_button, _position, _span);
_sizer->Layout ();
}
void button_clicked ()
{
- int const v = boost::bind (_getter, _content.front().get())();
+ U const v = boost::bind (_model_getter, _content.front().get())();
for (typename List::iterator i = _content.begin (); i != _content.end(); ++i) {
- boost::bind (_setter, i->get(), v) ();
- }
- }
-
- void view_changed ()
- {
- for (size_t i = 0; i < _content.size(); ++i) {
- /* Only update our view on the last time round this loop */
- _ignore_model_changes = i < (_content.size() - 1);
- boost::bind (_setter, _content[i].get(), _wrapped->GetValue ()) ();
- }
- }
-
- void update_from_model ()
- {
- if (_content.empty ()) {
- set_single ();
- return;
- }
-
- typename List::iterator i = _content.begin ();
- int const v = boost::bind (_getter, _content.front().get())();
- while (i != _content.end() && boost::bind (_getter, i->get())() == v) {
- ++i;
- }
-
- if (i == _content.end ()) {
- set_single ();
- checked_set (_wrapped, v);
- } else {
- set_multiple ();
+ boost::bind (_model_setter, i->get(), v) ();
}
}
T* _wrapped;
wxGridBagSizer* _sizer;
wxGBPosition _position;
+ wxGBSpan _span;
wxButton* _button;
List _content;
int _property;
- boost::function<int (S*)> _getter;
- boost::function<void (S*, int)> _setter;
+ boost::function<U (S*)> _model_getter;
+ boost::function<void (S*, U)> _model_setter;
+ boost::function<U (V)> _view_to_model;
+ boost::function<V (U)> _model_to_view;
std::list<boost::signals2::connection> _connections;
bool _ignore_model_changes;
};
+template <typename U, typename V>
+V caster (U x)
+{
+ return static_cast<V> (x);
+}
+
+template <class S>
+class ContentSpinCtrl : public ContentWidget<S, wxSpinCtrl, int, int>
+{
+public:
+ ContentSpinCtrl (
+ wxWindow* parent,
+ wxSpinCtrl* wrapped,
+ int property,
+ boost::function<int (S*)> getter,
+ boost::function<void (S*, int)> setter
+ )
+ : ContentWidget<S, wxSpinCtrl, int, int> (
+ parent,
+ wrapped,
+ property,
+ getter, setter,
+ &caster<int, int>,
+ &caster<int, int>
+ )
+ {
+ wrapped->Bind (wxEVT_COMMAND_SPINCTRL_UPDATED, boost::bind (&ContentWidget<S, wxSpinCtrl, int, int>::view_changed, this));
+ }
+};
+
+template <class S>
+class ContentSpinCtrlDouble : public ContentWidget<S, wxSpinCtrlDouble, double, double>
+{
+public:
+ ContentSpinCtrlDouble (
+ wxWindow* parent,
+ wxSpinCtrlDouble* wrapped,
+ int property,
+ boost::function<double (S*)> getter,
+ boost::function<void (S*, double)> setter
+ )
+ : ContentWidget<S, wxSpinCtrlDouble, double, double> (
+ parent,
+ wrapped,
+ property,
+ getter, setter,
+ &caster<double, double>,
+ &caster<double, double>
+ )
+ {
+ wrapped->Bind (wxEVT_COMMAND_SPINCTRLDOUBLE_UPDATED, boost::bind (&ContentWidget<S, wxSpinCtrlDouble, double, double>::view_changed, this));
+ }
+};
+
+template <class S, class U>
+class ContentChoice : public ContentWidget<S, wxChoice, U, int>
+{
+public:
+ ContentChoice (
+ wxWindow* parent,
+ wxChoice* wrapped,
+ int property,
+ boost::function<U (S*)> getter,
+ boost::function<void (S*, U)> setter,
+ boost::function<U (int)> view_to_model,
+ boost::function<int (U)> model_to_view
+ )
+ : ContentWidget<S, wxChoice, U, int> (
+ parent,
+ wrapped,
+ property,
+ getter,
+ setter,
+ view_to_model,
+ model_to_view
+ )
+ {
+ wrapped->Bind (wxEVT_COMMAND_CHOICE_SELECTED, boost::bind (&ContentWidget<S, wxChoice, U, int>::view_changed, this));
+ }
+
+};
+
#endif