EzGrid.cpp

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#include "EzGrid.h"
#include <wx/config.h>
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

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

BEGIN_EVENT_TABLE(EzGrid, wxGrid)
        EVT_GRID_CELL_LEFT_CLICK(EzGrid::OnCellLeftClick )
#ifdef __WXGTK__
    EVT_MOUSEWHEEL(EzGrid::OnMouseWheel)
#endif
END_EVENT_TABLE()


EzGrid::EzGrid(wxWindow *parent,
        wxWindowID id,  const wxPoint& pos,
        const wxSize& size, long style,
        const wxString& name) : wxGrid(parent, id, pos, size, style, name),
        m_selTemp(NULL)
{
        // Adjust the default row height to be more compact
        wxFont font = GetLabelFont();
        int nWidth = 0;
        int nHeight = 18;
        GetTextExtent(wxT("W"), &nWidth, &nHeight, NULL, NULL, &font);
        SetColLabelSize(nHeight+6);
        #ifdef __WXGTK__
        SetDefaultRowSize(nHeight+8, TRUE);
        #else
        SetDefaultRowSize(nHeight+4, TRUE);
        #endif
}

EzGrid::~EzGrid()
{
        // Save column widths
        wxConfigBase *cfg = wxConfigBase::Get();
        wxString strCol;
        for (int nCol = 0; nCol < GetNumberCols(); nCol++)
        {
                strCol.Printf(wxT("column%d"), nCol);
                cfg->Write(strCol, (long)GetColSize(nCol));
        }
}


void EzGrid::OnCellLeftClick(wxGridEvent& ev)
{
        // This forces the cell to go into edit mode directly
        m_waitForSlowClick = TRUE;
        SetGridCursor(ev.GetRow(), ev.GetCol());
        // Store the click co-ordinates in the editor if possible
        // if an editor has created a ClientData area, we presume it's
        // a wxPoint and we store the click co-ordinates
        wxGridCellEditor* pEditor  = GetCellEditor(ev.GetRow(), ev.GetCol());
        wxPoint* pClickPoint = (wxPoint*)pEditor->GetClientData();
        if (pClickPoint)
        {
                *pClickPoint = ClientToScreen(ev.GetPosition());
#ifndef __WINDOWS__
                //EnableCellEditControl(true);
#endif
        }
        // hack to prevent selection from being lost when click combobox
        if (ev.GetCol() == 0 && IsInSelection(ev.GetRow(), ev.GetCol()))
        {
                m_selTemp = m_selection;
                m_selection = NULL;
        }
        pEditor->DecRef();
        ev.Skip();
}

#ifdef __WXGTK__
void EzGrid::OnMouseWheel( wxMouseEvent& event )
{
    int nWheelRotation = event.GetWheelRotation();
//    int lines = nWheelRotation / event.GetWheelDelta();
        int x, y;
        GetViewStart(&x, &y);
        if (nWheelRotation < 0) y+=5;
        else y -= 5;
        Scroll(x, y);
}
#endif

void EzGrid::PreviousState()
{
        wxConfigBase *cfg = wxConfigBase::Get();
        wxString strCol;
        long nColWidth;
        for (int nCol = 0; nCol < GetNumberCols(); nCol++)
        {
                strCol.Printf(wxT("column%d"), nCol);
                if (cfg->Read(strCol, &nColWidth))
                        SetColSize(nCol, nColWidth);
        }
}

wxSize EzGrid::DoGetBestSize() const
{
        return wxSize(100, 80);
}

void EzGrid::SetNumberRows(int nRows)
{
        if (GetRows() > 0) DeleteRows(0, GetRows());
        if (nRows > 0) AppendRows(nRows);
}

void EzGrid::RecalcRowLabel()
{
        wxFont font = GetLabelFont();
        int nWidth = 0;
        int nHeight = 0;
        GetTextExtent(wxString::Format(wxT("%d"), GetRows()),
                                                                &nWidth, &nHeight, NULL, NULL, &font);
        if (nWidth < 12) nWidth = 12;
        SetRowLabelSize(nWidth+6);
//      SetRowLabelSize(0);
}


void EzGrid::UpdateNumRows()
{
        m_numRows = m_table->GetNumberRows();
        m_numCols = m_table->GetNumberCols();
}