GridCellChoiceRenderer.cpp

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#include "GridCellChoiceRenderer.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

void wxGridCellChoiceRenderer::Draw(wxGrid& grid, wxGridCellAttr& attr, wxDC& dc,
        const wxRect& rectCell, int row, int col, bool isSelected)
{
    wxGridCellRenderer::Draw(grid, attr, dc, rectCell, row, col, isSelected);
        // first calculate button size
        // don't draw outside the cell
        int nButtonWidth = 17;
        if (rectCell.height < 2) return;        
        wxRect rectButton;
        rectButton.x = rectCell.x + rectCell.width - nButtonWidth;
        rectButton.y = rectCell.y + 1;
        int cell_rows, cell_cols;
        attr.GetSize(&cell_rows, &cell_cols);
        rectButton.width = nButtonWidth;
        if (cell_rows == 1)
                rectButton.height = rectCell.height-2;
        else
                rectButton.height = nButtonWidth;

        SetTextColoursAndFont(grid, attr, dc, isSelected);
        int hAlign, vAlign;
        attr.GetAlignment(&hAlign, &vAlign);
        // leave room for button
        wxRect rect = rectCell;
        rect.SetWidth(rectCell.GetWidth() - rectButton.GetWidth()-2);
        rect.Inflate(-1);
        grid.DrawTextRectangle(dc, grid.GetCellValue(row, col), rect, hAlign, vAlign);

        // don't bother drawing if the cell is too small
        if (rectButton.height < 4 || rectButton.width < 4) return;
        // draw 3-d button
        wxColour colourBackGround = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
        dc.SetBrush(wxBrush(colourBackGround, wxSOLID));
        dc.SetPen(wxPen(colourBackGround, 1, wxSOLID));
        dc.DrawRectangle(rectButton);
        dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNTEXT), 1, wxSOLID));
        dc.DrawLine(rectButton.GetLeft(), rectButton.GetBottom(), 
                rectButton.GetRight(), rectButton.GetBottom());
        dc.DrawLine(rectButton.GetRight(), rectButton.GetBottom(), 
                rectButton.GetRight(), rectButton.GetTop()-1);
        dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNSHADOW), 
                1, wxSOLID));
        dc.DrawLine(rectButton.GetLeft()+1, rectButton.GetBottom()-1, 
                rectButton.GetRight()-1, rectButton.GetBottom()-1);
        dc.DrawLine(rectButton.GetRight()-1, rectButton.GetBottom()-1, 
                rectButton.GetRight()-1, rectButton.GetTop());
        dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNHIGHLIGHT), 
                1, wxSOLID));
        dc.DrawLine(rectButton.GetRight()-2, rectButton.GetTop()+1, 
                rectButton.GetLeft()+1, rectButton.GetTop()+1);
        dc.DrawLine(rectButton.GetLeft()+1, rectButton.GetTop()+1, 
                rectButton.GetLeft()+1, rectButton.GetBottom()-1);
        // Draw little triangle
        int nTriWidth = 7;
        int nTriHeight = 4;
        wxPoint point[3];
        point[0] = wxPoint(rectButton.GetLeft() + (rectButton.GetWidth()-nTriWidth)/2, 
                rectButton.GetTop()+(rectButton.GetHeight()-nTriHeight)/2);
        point[1] = wxPoint(point[0].x+nTriWidth-1, point[0].y);
        point[2] = wxPoint(point[0].x+3, point[0].y+nTriHeight-1);
        dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNTEXT), wxSOLID));
        dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNTEXT), 1, wxSOLID));
        dc.DrawPolygon(3, point);
        if (m_border == wxLAYOUT_TOP)
        {
                dc.SetPen(wxPen(*wxBLACK, 1, wxDOT));
                dc.DrawLine(rectCell.GetRight(), rectCell.GetTop(), 
                        rectCell.GetLeft(), rectCell.GetTop());
        }
}