/*
 * This file is part of the Code::Blocks IDE and licensed under the GNU Lesser General Public License, version 3
 * http://www.gnu.org/licenses/lgpl-3.0.html
 *
 * $Revision: 10543 $
 * $Id: cbtreectrl.cpp 10543 2015-10-21 05:52:42Z mortenmacfly $
 * $HeadURL: http://svn.code.sf.net/p/codeblocks/code/branches/release-16.xx/src/sdk/cbtreectrl.cpp $
 */

#include "sdk_precomp.h"

#ifndef CB_PRECOMP
    #include <wx/event.h>
    #include <wx/filename.h>
    #include <wx/gdicmn.h> // wxPoint
    #include <wx/string.h>
    #include <wx/treebase.h> // wxTreeItemId

    #include "cbproject.h" // FileTreeData
    #include "projectfile.h"
#endif

IMPLEMENT_DYNAMIC_CLASS(cbTreeCtrl, wxTreeCtrl)

BEGIN_EVENT_TABLE(cbTreeCtrl, wxTreeCtrl)
#ifndef __WXMSW__
    EVT_RIGHT_DOWN(cbTreeCtrl::OnRightClick)
#endif // !__WXMSW__
    EVT_KEY_DOWN(cbTreeCtrl::OnKeyDown)
END_EVENT_TABLE()

cbTreeCtrl::cbTreeCtrl() : wxTreeCtrl()
{
    Compare = &filesSort;
}

cbTreeCtrl::cbTreeCtrl(wxWindow* parent, int id) :
    wxTreeCtrl(parent, id, wxDefaultPosition, wxDefaultSize,
               wxTR_EDIT_LABELS | wxTR_HAS_BUTTONS | wxTR_MULTIPLE | wxBORDER_NONE)
{
    Compare = &filesSort;
}

void cbTreeCtrl::SetCompareFunction(const int ptvs)
{
    // sort list of files
    if ( !(ptvs & ptvsUseFolders) && (ptvs & ptvsHideFolderName) )
        Compare = &filesSortNameOnly;
    else
        Compare = &filesSort;
}

wxTreeItemId cbTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
{
    wxTreeItemId previous = GetPrevSibling(item);
    if (previous.IsOk())
    {
        while (ItemHasChildren(previous) && IsExpanded(previous))
        {
            wxTreeItemId child = GetLastChild(previous);
            if (!child.IsOk())
                break;
            else
                previous = child;
        }
    }
    else
        previous = GetItemParent(item);
    return previous;
}

#ifndef __WXMSW__
/*
    Under wxGTK, wxTreeCtrl is not sending an EVT_COMMAND_RIGHT_CLICK
    event when right-clicking on the client area.
*/
void cbTreeCtrl::OnRightClick(wxMouseEvent& event)
{
    if (!this) return;

    int flags;
    HitTest(wxPoint(event.GetX(), event.GetY()), flags);
    if (flags & (wxTREE_HITTEST_ABOVE | wxTREE_HITTEST_BELOW | wxTREE_HITTEST_NOWHERE))
    {
        // "proxy" the call
        wxCommandEvent e(wxEVT_COMMAND_RIGHT_CLICK, GetID());
        wxPostEvent(GetParent(), e);
    }
    else
        event.Skip();
}
#endif // !__WXMSW__
/*
    Under all platforms there is no reaction when pressing "ENTER".
    Expected would be e.g. to open the file in an editor.
*/
void cbTreeCtrl::OnKeyDown(wxKeyEvent& event)
{
    // Don't care about special key combinations
    if ( !this || (event.GetModifiers()!=wxMOD_NONE) )
    {
        event.Skip();
        return;
    }

    wxArrayTreeItemIds selections;
    // Don't care if no selection has been made
    if ( GetSelections(selections)<1 )
    {
        event.Skip();
        return;
    }

    long         keycode = event.GetKeyCode();
    wxTreeItemId itemId  = selections[0];
    // Don't care if item is invalid
    if ( !itemId.IsOk() )
    {
        event.Skip();
        return;
    }

    switch (keycode)
    {
        case WXK_RETURN:
        case WXK_NUMPAD_ENTER:
        {
            wxTreeEvent te = wxTreeEvent(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, this, itemId);
            wxPostEvent(this, te);
            break;
        }
        default:
            event.Skip();
    }
}

/*static*/ int cbTreeCtrl::filesSort(const ProjectFile* arg1, const ProjectFile* arg2)
{
    if (arg1 && arg2)
        return wxStricmp(arg1->file.GetFullPath(), arg2->file.GetFullPath());
    return 0;
}

/*static*/ int cbTreeCtrl::filesSortNameOnly(const ProjectFile* arg1, const ProjectFile* arg2)
{
    if (arg1 && arg2)
        return wxStricmp(arg1->file.GetFullName(), arg2->file.GetFullName());
    return 0;
}

int cbTreeCtrl::OnCompareItems(const wxTreeItemId& item1, const wxTreeItemId& item2)
{
    return Compare(((FileTreeData*)GetItemData(item1))->GetProjectFile(), ((FileTreeData*)GetItemData(item2))->GetProjectFile());
}
