// Berkeley Open Infrastructure for Network Computing
// http://boinc.berkeley.edu
// Copyright (C) 2005 University of California
//
// This is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation;
// either version 2.1 of the License, or (at your option) any later version.
//
// This software 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 Lesser General Public License for more details.
//
// To view the GNU Lesser General Public License visit
// http://www.gnu.org/copyleft/lesser.html
// or write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#if defined(__GNUG__) && !defined(__APPLE__)
#pragma implementation "BOINCGridCtrl.h"
#endif

#include "stdwx.h"
#include "BOINCGridCtrl.h"


CBOINCGridCtrl::CBOINCGridCtrl(
    wxWindow* parent, wxWindowID iGridWindowID
) : wxGrid(
    parent, iGridWindowID) {
}


CBOINCGridCtrl::~CBOINCGridCtrl() {
}

int CBOINCGridCtrl::GetFirstSelectedRow() {
	int ret= -1;
	//Row mode ?
	wxArrayInt selRows = this->GetSelectedRows();
	if(selRows.size() >0) {
		return selRows[0];
	}
	//block mode ?
	wxGridCellCoordsArray  selBlocks =  this->GetSelectionBlockTopLeft();
	if(selBlocks.size()>0) {
		return selBlocks[0].GetRow();
	}
	//cell mode
	wxGridCellCoordsArray  selCells =  this->GetSelectionBlockTopLeft();
	if(selCells.size()>0) {
		return selCells[0].GetRow();
	}
	
	return ret;
}

bool CBOINCGridCtrl::OnSaveState(wxConfigBase* pConfig) {
    wxString    strBaseConfigLocation = wxEmptyString;
    wxInt32     iIndex = 0;
    wxInt32     iColumnCount = this->GetCols();

    wxASSERT(pConfig);


    // Retrieve the base location to store configuration information
    // Should be in the following form: "/Projects/"
    strBaseConfigLocation = pConfig->GetPath() + wxT("/");

    // Cycle through the columns recording anything interesting
    for (iIndex = 0; iIndex < iColumnCount; iIndex++) {
		wxString label = this->GetColLabelValue(iIndex);
        pConfig->SetPath(strBaseConfigLocation + label);
		pConfig->Write(wxT("Width"), this->GetColumnWidth(iIndex));
    }
    return true;
}


bool CBOINCGridCtrl::OnRestoreState(wxConfigBase* pConfig) {
    wxString    strBaseConfigLocation = wxEmptyString;
    wxInt32     iIndex = 0;
    wxInt32     iTempValue = 0;
	wxInt32		iColumnCount = this->GetCols();

    wxASSERT(pConfig);

    // Retrieve the base location to store configuration information
    // Should be in the following form: "/Projects/"
    strBaseConfigLocation = pConfig->GetPath() + wxT("/");

    // Cycle through the columns recording anything interesting
    for (iIndex = 0; iIndex < iColumnCount; iIndex++) {
		wxString label = this->GetColLabelValue(iIndex);
        pConfig->SetPath(strBaseConfigLocation + label);

        pConfig->Read(wxT("Width"), &iTempValue, -1);
        if (-1 != iTempValue) {
			this->SetColumnWidth(iIndex,iTempValue);
        }
    }

    return true;
}

void CBOINCGridCtrl::SetColAlignment(int col,int hAlign,int vAlign) {
    wxGridCellAttr *attr = m_table->GetAttr(-1, col, wxGridCellAttr::Col );
	if(!attr) {
		attr = new wxGridCellAttr;    
	}
	attr->SetAlignment(hAlign,vAlign);
    SetColAttr(col, attr);
}


void CBOINCGridCtrl::DrawTextRectangle( wxDC& dc,
                               const wxArrayString& lines,
                               const wxRect& rect,
                               int horizAlign,
                               int vertAlign,
                               int textOrientation )
{
    long textWidth, textHeight;
    long lineWidth, lineHeight;
    int nLines;

    dc.SetClippingRegion( rect );

    nLines = lines.GetCount();
    if( nLines > 0 )
    {
        int l;
        float x = 0.0, y = 0.0;

        if( textOrientation == wxHORIZONTAL )
            GetTextBoxSize(dc, lines, &textWidth, &textHeight);
        else
            GetTextBoxSize( dc, lines, &textHeight, &textWidth );

        switch( vertAlign )
        {
        case wxALIGN_BOTTOM:
            if( textOrientation == wxHORIZONTAL )
                y = rect.y + (rect.height - textHeight - 1);
            else
                x = rect.x + rect.width - textWidth;
            break;

        case wxALIGN_CENTRE:
            if( textOrientation == wxHORIZONTAL )
                y = rect.y + ((rect.height - textHeight)/2);
            else
                x = rect.x + ((rect.width - textWidth)/2);
            break;

        case wxALIGN_TOP:
        default:
            if( textOrientation == wxHORIZONTAL )
                y = rect.y + 1;
            else
                x = rect.x + 1;
            break;
        }

        // Align each line of a multi-line label
        for( l = 0; l < nLines; l++ )
        {
            dc.GetTextExtent(lines[l], &lineWidth, &lineHeight);

            switch( horizAlign )
            {
            case wxALIGN_RIGHT:
                if( textOrientation == wxHORIZONTAL )
                    x = rect.x + (rect.width - lineWidth - 1);
                else
                    y = rect.y + lineWidth + 1;
                break;

            case wxALIGN_CENTRE:
                if( textOrientation == wxHORIZONTAL )
                    x = rect.x + ((rect.width - lineWidth)/2);
                else
                    y = rect.y + rect.height - ((rect.height - lineWidth)/2);
                break;

            case wxALIGN_LEFT:
            default:
                if( textOrientation == wxHORIZONTAL )
                    x = rect.x + 1;
                else
                    y = rect.y + rect.height - 1;
                break;
            }

            if( textOrientation == wxHORIZONTAL )
            {
				wxString formattedText = FormatTextWithEllipses(dc,lines[l],rect.width);
                dc.DrawText( formattedText, (int)x, (int)y );
                y += lineHeight;
            }
            else
            {
                dc.DrawRotatedText( lines[l], (int)x, (int)y, 90.0 );
                x += lineHeight;
            }
        }
    }
    dc.DestroyClippingRegion();
}

wxString CBOINCGridCtrl::FormatTextWithEllipses(wxDC& dc,const wxString &text,int width)
{
	wxString retText;
    wxString drawntext, ellipsis;
    wxCoord w, h, base_w;
    wxListItem item;

    // determine if the string can fit inside the current width
    dc.GetTextExtent(text, &w, &h);
    if (w <= width)
    {
		retText = text;
    }
    else // otherwise, truncate and add an ellipsis if possible
    {
        // determine the base width
        ellipsis = wxString(wxT("..."));
        dc.GetTextExtent(ellipsis, &base_w, &h);

        // continue until we have enough space or only one character left
        wxCoord w_c, h_c;
        size_t len = text.Length();
        drawntext = text.Left(len);
        while (len > 1)
        {
            dc.GetTextExtent(drawntext.Last(), &w_c, &h_c);
            drawntext.RemoveLast();
            len--;
            w -= w_c;
            if (w + base_w <= width)
                break;
        }

        // if still not enough space, remove ellipsis characters
        while (ellipsis.Length() > 0 && w + base_w > width)
        {
            ellipsis = ellipsis.Left(ellipsis.Length() - 1);
            dc.GetTextExtent(ellipsis, &base_w, &h);
        }

        // now draw the text
		retText = drawntext + ellipsis;
    }

	return retText;
}


/* ############# */
CBOINCGridCellProgressRenderer::CBOINCGridCellProgressRenderer(int col) : wxGridCellStringRenderer()
{
	column = col;
}

void CBOINCGridCellProgressRenderer::Draw(wxGrid& grid, wxGridCellAttr& attr, wxDC& dc, const wxRect& rect, int row, int col, bool isSelected) {
	if(col==column) {
		DoProgressDrawing(grid,attr,dc,rect,row,col,isSelected);
	}
	else {		
		wxGridCellStringRenderer::Draw(grid,attr,dc,rect,row,col,isSelected);
	}
}

void CBOINCGridCellProgressRenderer::DoProgressDrawing(wxGrid& grid, wxGridCellAttr& attr, wxDC& dc, const wxRect& rectCell, int row, int col, bool isSelected) {
    wxRect rect = rectCell;
    rect.Inflate(-1);

    // erase only this cells background, overflow cells should have been erased
    wxGridCellRenderer::Draw(grid, attr, dc, rectCell, row, col, isSelected);

    int hAlign, vAlign;
    attr.GetAlignment(&hAlign, &vAlign);

    // now we only have to draw the text
    SetTextColoursAndFont(grid, attr, dc, isSelected);

	wxString value = grid.GetCellValue(row,col);
	wxString strValue = value + " %"; 
	double dv = atof(value);
	wxRect p1(rect);
	wxRect p2(rect);
	int r = (int)((rect.GetRight()-rect.GetLeft())*dv / 100.0);
	p1.SetRight(rect.GetLeft()+r);
	p2.SetLeft(rect.GetLeft()+r+1);
	dc.SetClippingRegion(rect);
	wxBrush old = dc.GetBrush();
	dc.SetBrush(*wxLIGHT_GREY_BRUSH);
	dc.DrawRectangle(p1);
	dc.SetBrush(old);
	dc.DrawRectangle(p2);	
	dc.DestroyClippingRegion();
	grid.DrawTextRectangle(dc, strValue, rect, hAlign, vAlign);
}