xrb_dialog.hpp

// ///////////////////////////////////////////////////////////////////////////
// xrb_dialog.hpp by Victor Dods, created 2005/02/20
// ///////////////////////////////////////////////////////////////////////////
// Unless a different license was explicitly granted in writing by the
// copyright holder (Victor Dods), this software is freely distributable under
// the terms of the GNU General Public License, version 2.  Any works deriving
// from this work must also be released under the GNU GPL.  See the included
// file LICENSE for details.
// ///////////////////////////////////////////////////////////////////////////

#if !defined(_XRB_DIALOG_HPP_)
#define _XRB_DIALOG_HPP_

#include "xrb.hpp"

#include "xrb_modalwidget.hpp"

namespace Xrb
{

class Layout;
class Button;

class Dialog : public ModalWidget
{
private:

    enum
    {
        BUTTON_OK = 1,
        BUTTON_CANCEL = BUTTON_OK << 1
    };

public:

    enum DialogType
    {
        DT_OK = BUTTON_OK,
        DT_OK_CANCEL = BUTTON_OK|BUTTON_CANCEL,
        DT_CANCEL = BUTTON_CANCEL
    }; // end of enum DialogType

    enum ButtonID
    {
        ID_OK = 0,
        ID_CANCEL,
    }; // end of enum ButtonID

    Dialog (
        DialogType const dialog_type,
        ContainerWidget *const parent,
        std::string const &name = "Dialog");
    virtual ~Dialog () { }

    inline Layout *DialogLayout () const { return m_dialog_layout; }
    bool HasButton (ButtonID const button_id) const;
    inline bool HasOKButton () const
    {
        return (m_dialog_type & BUTTON_OK) != 0;
    }
    inline bool HasCancelButton () const
    {
        return (m_dialog_type & BUTTON_CANCEL) != 0;
    }

    inline SignalSender1<ButtonID> const *SenderDialogReturned () { return &m_sender_dialog_returned; }
    inline SignalSender0 const *SenderDialogReturnedOK ()
    {
        ASSERT1(HasOKButton());
        return &m_sender_dialog_returned_ok;
    }
    inline SignalSender0 const *SenderDialogReturnedCancel ()
    {
        ASSERT1(HasCancelButton());
        return &m_sender_dialog_returned_cancel;
    }

protected:

    virtual bool ProcessKeyEvent (EventKey const *e);

    virtual void OKButtonActivated ();
    virtual void CancelButtonActivated ();

private:

    DialogType m_dialog_type;

    Layout *m_dialog_layout;
    Layout *m_button_layout;
    Button *m_ok_button;
    Button *m_cancel_button;

    SignalSender1<ButtonID> m_sender_dialog_returned;
    SignalSender0 m_sender_dialog_returned_ok;
    SignalSender0 m_sender_dialog_returned_cancel;

    SignalReceiver0 m_internal_receiver_ok_button_activated;
    SignalReceiver0 m_internal_receiver_cancel_button_activated;
}; // end of class Dialog

} // end of namespace Xrb

#endif // !defined(_XRB_DIALOG_HPP_)

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