/////////////////////////////////////////////////////////////////////////////
// Name:        collpane.cpp
// Purpose:     wxCollapsiblePane sample
// Author:      Francesco Montorsi
// Created:     14/10/06
// Copyright:   (c) Francesco Montorsi
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"


#ifndef WX_PRECOMP
    #include "wx/log.h"

    #include "wx/app.h"
    #include "wx/frame.h"

    #include "wx/scrolwin.h"
    #include "wx/menu.h"

    #include "wx/textdlg.h"       // for wxGetTextFromUser
#endif

#include "wx/collheaderctrl.h"
#include "wx/collpane.h"
#include "wx/sizer.h"
#include "wx/stattext.h"
#include "wx/clrpicker.h"
#include "wx/filepicker.h"
#include "wx/fontpicker.h"
#include "wx/aboutdlg.h"

#ifndef wxHAS_IMAGES_IN_RESOURCES
    #include "../sample.xpm"
#endif

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

// ID for the menu commands
enum
{
    PANE_COLLAPSE = 100,
    PANE_EXPAND,
    PANE_SETLABEL,
    PANE_SHOWDLG,
    PANE_ABOUT = wxID_ABOUT,
    PANE_QUIT = wxID_EXIT,

    PANE_BUTTON,
    PANE_TEXTCTRL
};


// ----------------------------------------------------------------------------
// our classes
// ----------------------------------------------------------------------------

class MyApp: public wxApp
{
public:
    MyApp() { }
    MyApp(const MyApp&) = delete;
    MyApp& operator=(const MyApp&) = delete;

    virtual bool OnInit() override;
};

class MyFrame: public wxFrame
{
public:
    MyFrame();
    MyFrame(const MyFrame&) = delete;
    MyFrame& operator=(const MyFrame&) = delete;

    virtual ~MyFrame();

    // Menu commands
    void OnCollapse(wxCommandEvent& event);
    void OnExpand(wxCommandEvent& event);
    void OnSetLabel(wxCommandEvent& event);
    void OnShowDialog(wxCommandEvent& event);
    void Quit(wxCommandEvent& event);
    void OnAbout(wxCommandEvent& event);

    // UI update handlers
    void OnCollapseUpdateUI(wxUpdateUIEvent& event);
    void OnExpandUpdateUI(wxUpdateUIEvent& event);

    void OnCollapsibleHeaderChanged(wxCommandEvent& event);

private:
    wxCollapsiblePane *m_collPane;
    wxCollapsibleHeaderCtrl *m_collHeaderCtrl;
    wxBoxSizer *m_paneSizer;

    wxDECLARE_EVENT_TABLE();
};

class MyDialog : public wxDialog
{
public:
    MyDialog(wxFrame *parent);
    MyDialog(const MyDialog&) = delete;
    MyDialog& operator=(const MyDialog&) = delete;

    void OnToggleStatus(wxCommandEvent& WXUNUSED(ev));
    void OnAlignButton(wxCommandEvent& WXUNUSED(ev));
    void OnPaneChanged(wxCollapsiblePaneEvent& event);

private:
    wxCollapsiblePane *m_collPane;
    wxGridSizer *m_paneSizer;

    wxDECLARE_EVENT_TABLE();
};



// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// MyApp
// ----------------------------------------------------------------------------

wxIMPLEMENT_APP(MyApp);

bool MyApp::OnInit()
{
    if ( !wxApp::OnInit() )
        return false;

    // create and show the main frame
    MyFrame* frame = new MyFrame;

    frame->Show(true);

    return true;
}

// ----------------------------------------------------------------------------
// MyFrame
// ----------------------------------------------------------------------------

wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
    EVT_MENU(PANE_COLLAPSE, MyFrame::OnCollapse)
    EVT_MENU(PANE_EXPAND, MyFrame::OnExpand)
    EVT_MENU(PANE_SETLABEL, MyFrame::OnSetLabel)
    EVT_MENU(PANE_SHOWDLG, MyFrame::OnShowDialog)
    EVT_MENU(PANE_ABOUT, MyFrame::OnAbout)
    EVT_MENU(PANE_QUIT, MyFrame::Quit)

    EVT_UPDATE_UI(PANE_COLLAPSE, MyFrame::OnCollapseUpdateUI)
    EVT_UPDATE_UI(PANE_EXPAND, MyFrame::OnExpandUpdateUI)

    EVT_COLLAPSIBLEHEADER_CHANGED(wxID_ANY, MyFrame::OnCollapsibleHeaderChanged)
wxEND_EVENT_TABLE()

// My frame constructor
MyFrame::MyFrame()
       : wxFrame(nullptr, wxID_ANY, "wxCollapsiblePane sample",
                 wxDefaultPosition, wxSize(420, 300))
{
    SetIcon(wxICON(sample));

#if wxUSE_STATUSBAR
    CreateStatusBar(2);
#endif // wxUSE_STATUSBAR

    // Make a menubar
    wxMenu *paneMenu = new wxMenu;
    paneMenu->Append(PANE_COLLAPSE, "Collapse\tCtrl-C");
    paneMenu->Append(PANE_EXPAND, "Expand\tCtrl-E");
    paneMenu->AppendSeparator();
    paneMenu->Append(PANE_SETLABEL, "Set label...\tCtrl-L");
    paneMenu->AppendSeparator();
    paneMenu->Append(PANE_SHOWDLG, "Show dialog...\tCtrl-S");
    paneMenu->AppendSeparator();
    paneMenu->Append(PANE_QUIT);

    wxMenu *helpMenu = new wxMenu;
    helpMenu->Append(PANE_ABOUT);

    wxMenuBar *menuBar = new wxMenuBar;
    menuBar->Append(paneMenu, "&Pane");
    menuBar->Append(helpMenu, "&Help");
    SetMenuBar(menuBar);

    m_collPane = new wxCollapsiblePane(this, -1, "This is a wxCollapsiblePane");
    wxWindow *win = m_collPane->GetPane();

    m_paneSizer = new wxBoxSizer( wxHORIZONTAL );
    wxBoxSizer* paneSubSizer = new wxBoxSizer( wxVERTICAL );
    m_paneSizer->AddSpacer( 20 );
    m_paneSizer->Add( paneSubSizer, 1 );

    paneSubSizer->Add( new wxStaticText(win, -1, "Static text" ), 0, wxALIGN_LEFT | wxALL, 3 );
    paneSubSizer->Add( new wxStaticText(win, -1, "Yet another one!" ), 0, wxALIGN_LEFT | wxALL, 3 );
    paneSubSizer->Add( new wxTextCtrl(win, PANE_TEXTCTRL, "Text control", wxDefaultPosition, wxSize(80,-1) ), 0, wxALIGN_LEFT | wxALL, 3 );
    paneSubSizer->Add( new wxButton(win, PANE_BUTTON, "Press to align right" ), 0, wxALIGN_LEFT | wxALL, 3 );

    win->SetSizer( m_paneSizer );

    m_collHeaderCtrl = new wxCollapsibleHeaderCtrl(this, wxID_ANY, "Collapsed wxCollapsibleHeaderCtrl");

    wxSizer* const sizerTop = new wxBoxSizer(wxVERTICAL);
    sizerTop->Add(m_collPane, wxSizerFlags(1).Expand());
    sizerTop->Add(m_collHeaderCtrl);
    SetSizer(sizerTop);
}

MyFrame::~MyFrame()
{
}

// menu command handlers

void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
{
    Close(true);
}

void MyFrame::OnCollapse(wxCommandEvent& WXUNUSED(event) )
{
    m_collPane->Collapse();
}

void MyFrame::OnExpand(wxCommandEvent& WXUNUSED(event) )
{
    m_collPane->Expand();
}

void MyFrame::OnSetLabel(wxCommandEvent& WXUNUSED(event) )
{
    wxString text = wxGetTextFromUser
                    (
                        "Enter new label",
                        wxGetTextFromUserPromptStr,
                        m_collPane->GetLabel()
                    );
    m_collPane->SetLabel(text);
}

void MyFrame::OnShowDialog(wxCommandEvent& WXUNUSED(event) )
{
    MyDialog dlg(this);
    dlg.ShowModal();
}

void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
{
    wxAboutDialogInfo info;
    info.SetName(_("wxCollapsiblePane sample"));
    info.SetDescription(_("This sample program demonstrates usage of wxCollapsiblePane"));
    info.SetCopyright("(C) 2006 Francesco Montorsi <frm@users.sourceforge.net>");

    wxAboutBox(info, this);
}

void MyFrame::OnCollapseUpdateUI(wxUpdateUIEvent& event)
{
    event.Enable(!m_collPane->IsCollapsed());
}

void MyFrame::OnExpandUpdateUI(wxUpdateUIEvent& event)
{
    event.Enable(m_collPane->IsCollapsed());
}

void MyFrame::OnCollapsibleHeaderChanged(wxCommandEvent& WXUNUSED(event))
{
    m_collHeaderCtrl->SetLabel
        (
            wxString::Format
            (
                "%s wxCollapsibleHeaderCtrl",
                m_collHeaderCtrl->IsCollapsed() ? "Collapsed" : "Expanded"
            )
        );
}

// ----------------------------------------------------------------------------
// MyDialog
// ----------------------------------------------------------------------------

enum
{
    PANEDLG_TOGGLESTATUS_BTN = wxID_HIGHEST
};

wxBEGIN_EVENT_TABLE(MyDialog, wxDialog)
    EVT_BUTTON(PANEDLG_TOGGLESTATUS_BTN, MyDialog::OnToggleStatus)
    EVT_COLLAPSIBLEPANE_CHANGED(wxID_ANY, MyDialog::OnPaneChanged)
    EVT_BUTTON(PANE_BUTTON, MyDialog::OnAlignButton)
wxEND_EVENT_TABLE()

MyDialog::MyDialog(wxFrame *parent)
                : wxDialog(parent, wxID_ANY, "Test dialog",
                            wxDefaultPosition, wxDefaultSize,
                            wxRESIZE_BORDER|wxDEFAULT_DIALOG_STYLE )
{
    wxSizer *sz = new wxBoxSizer(wxVERTICAL);
    sz->Add(new wxStaticText(this, -1,
        "This dialog allows you to test the wxCollapsiblePane control"),
        0, wxALL, 5);
    sz->Add(new wxButton(this, PANEDLG_TOGGLESTATUS_BTN, "Change status"),
        1, wxGROW|wxALL, 5);

    m_collPane = new wxCollapsiblePane(this, -1, "Click here for a surprise");
    sz->Add(m_collPane, 0, wxGROW|wxALL, 5);
    sz->Add(new wxTextCtrl(this, -1, "just a test"), 0, wxGROW|wxALL, 5);
    sz->AddSpacer(10);
    sz->Add(new wxButton(this, wxID_OK), 0, wxALIGN_RIGHT|wxALL, 5);

    // now add test controls in the collapsible pane
    wxWindow *win = m_collPane->GetPane();
    m_paneSizer = new wxGridSizer(4, 1, 5, 5);

    m_paneSizer->Add( new wxStaticText(win, -1, "Static text" ), 0, wxALIGN_LEFT );
    m_paneSizer->Add( new wxStaticText(win, -1, "Yet another one!" ), 0, wxALIGN_LEFT );
    m_paneSizer->Add( new wxTextCtrl(win, PANE_TEXTCTRL, "Text control", wxDefaultPosition, wxSize(80,-1) ), 0, wxALIGN_LEFT );
    m_paneSizer->Add( new wxButton(win, PANE_BUTTON, "Press to align right" ), 0, wxALIGN_LEFT );
    win->SetSizer( m_paneSizer );

    win->SetSizer( m_paneSizer );
    m_paneSizer->SetSizeHints(win);

    SetSizer(sz);
    sz->SetSizeHints(this);
}

void MyDialog::OnToggleStatus(wxCommandEvent& WXUNUSED(ev))
{
    m_collPane->Collapse(!m_collPane->IsCollapsed());
}

void MyDialog::OnAlignButton(wxCommandEvent& WXUNUSED(ev))
{
   wxSizerItem *item = m_paneSizer->GetItem( FindWindow(PANE_TEXTCTRL), true );
   item->SetFlag(  wxALIGN_RIGHT );

   Layout();
}

void MyDialog::OnPaneChanged(wxCollapsiblePaneEvent& event)
{
    wxLogMessage("The pane has just been %s by the user",
               event.GetCollapsed() ? "collapsed" : "expanded");
}

