dialog_shim.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
 * Copyright (C) 2012-2019 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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 (at your option) 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, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#ifndef DIALOG_SHIM_
#define DIALOG_SHIM_

#include <wx/dialog.h>
#include <kiway_player.h>
class wxGridEvent;



struct WINDOW_THAWER
{
    WINDOW_THAWER( wxWindow* aWindow )
    {
        m_window = aWindow;
        m_freezeCount = 0;

        while( m_window->IsFrozen() )
        {
            m_window->Thaw();
            m_freezeCount++;
        }
    }

    ~WINDOW_THAWER()
    {
        while( m_freezeCount > 0 )
        {
            m_window->Freeze();
            m_freezeCount--;
        }
    }

protected:
    wxWindow* m_window;
    int       m_freezeCount;
};


class WDO_ENABLE_DISABLE;
class WX_EVENT_LOOP;

// These macros are for DIALOG_SHIM only, NOT for KIWAY_PLAYER.  KIWAY_PLAYER
// has its own support for quasi modal and its platform specific issues are different
// than for a wxDialog.
 #define SHOWQUASIMODAL     ShowQuasiModal
 #define ENDQUASIMODAL      EndQuasiModal

class DIALOG_SHIM : public wxDialog, public KIWAY_HOLDER
{
public:
    DIALOG_SHIM( wxWindow* aParent, wxWindowID id, const wxString& title,
                 const wxPoint& pos = wxDefaultPosition,
                 const wxSize& size = wxDefaultSize,
                 long style = wxDEFAULT_FRAME_STYLE | wxRESIZE_BORDER,
                 const wxString& name = wxDialogNameStr );

    ~DIALOG_SHIM();

    void SetInitialFocus( wxWindow* aWindow )
    {
        m_initialFocusTarget = aWindow;
    }

    int ShowQuasiModal();      // disable only the parent window, otherwise modal.

    void EndQuasiModal( int retCode );  // End quasi-modal mode

    bool IsQuasiModal() const { return m_qmodal_showing; }

    bool Show( bool show ) override;

    bool Enable( bool enable ) override;

    void OnPaint( wxPaintEvent &event );

    void SetPosition( const wxPoint& aNewPosition );

    EDA_UNITS GetUserUnits() const
    {
        return m_units;
    }

    static bool IsCtrl( int aChar, const wxKeyEvent& e )
    {
        return e.GetKeyCode() == aChar && e.ControlDown() && !e.AltDown() &&
                !e.ShiftDown() && !e.MetaDown();
    }

    static bool IsShiftCtrl( int aChar, const wxKeyEvent& e )
    {
        return e.GetKeyCode() == aChar && e.ControlDown() && !e.AltDown() &&
                e.ShiftDown() && !e.MetaDown();
    }

protected:
    void finishDialogSettings();

    void setSizeInDU( int x, int y );

    int horizPixelsFromDU( int x ) const;

    int vertPixelsFromDU( int y ) const;

    void resetSize();

    virtual void OnCharHook( wxKeyEvent& aEvt );

private:
    void OnCloseWindow( wxCloseEvent& aEvent );

    void OnButton( wxCommandEvent& aEvent );

    void OnGridEditorShown( wxGridEvent& event );
    void OnGridEditorHidden( wxGridEvent& event );

    DECLARE_EVENT_TABLE();

protected:
    EDA_UNITS              m_units;    // userUnits for display and parsing
    std::string            m_hash_key; // alternate for class_map when classname re-used

    // The following disables the storing of a user size.  It is used primarily for dialogs
    // with conditional content which don't need user sizing.
    bool                   m_useCalculatedSize;

    // On MacOS (at least) SetFocus() calls made in the constructor will fail because a
    // window that isn't yet visible will return false to AcceptsFocus().  So we must delay
    // the initial-focus SetFocus() call to the first paint event.
    bool                   m_firstPaintEvent;
    wxWindow*              m_initialFocusTarget;

    WX_EVENT_LOOP*         m_qmodal_loop;  // points to nested event_loop, NULL means not qmodal
                                           // and dismissed
    bool                   m_qmodal_showing;
    WDO_ENABLE_DISABLE*    m_qmodal_parent_disabler;

    EDA_BASE_FRAME*        m_parentFrame;

    std::vector<wxWindow*> m_tabOrder;

    // The size asked by the caller, used the first time the dialog is created
    wxSize                 m_initialSize;
};

#endif  // DIALOG_SHIM_