src/generic/renderg.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        src/generic/renderg.cpp
// Purpose:     generic implementation of wxRendererNative (for any platform)
// Author:      Vadim Zeitlin
// Modified by:
// Created:     20.07.2003
// RCS-ID:      $Id$
// Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
// License:     wxWindows license
///////////////////////////////////////////////////////////////////////////////

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

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

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#include "wx/renderer.h"

#ifndef WX_PRECOMP
    #include "wx/string.h"
    #include "wx/dc.h"
    #include "wx/settings.h"
    #include "wx/gdicmn.h"
    #include "wx/module.h"
#endif //WX_PRECOMP

#include "wx/splitter.h"
#include "wx/dcmirror.h"

#ifdef __WXMAC__
    #include "wx/mac/private.h"
#endif

// ----------------------------------------------------------------------------
// wxRendererGeneric: our wxRendererNative implementation
// ----------------------------------------------------------------------------

class WXDLLEXPORT wxRendererGeneric : public wxRendererNative
{
public:
    wxRendererGeneric();

    virtual int  DrawHeaderButton(wxWindow *win,
                                  wxDC& dc,
                                  const wxRect& rect,
                                  int flags = 0,
                                  wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
                                  wxHeaderButtonParams* params = NULL);

    virtual int  DrawHeaderButtonContents(wxWindow *win,
                                          wxDC& dc,
                                          const wxRect& rect,
                                          int flags = 0,
                                          wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
                                          wxHeaderButtonParams* params = NULL);

    virtual int GetHeaderButtonHeight(wxWindow *win);

    virtual void DrawTreeItemButton(wxWindow *win,
                                    wxDC& dc,
                                    const wxRect& rect,
                                    int flags = 0);

    virtual void DrawSplitterBorder(wxWindow *win,
                                    wxDC& dc,
                                    const wxRect& rect,
                                    int flags = 0);

    virtual void DrawSplitterSash(wxWindow *win,
                                  wxDC& dc,
                                  const wxSize& size,
                                  wxCoord position,
                                  wxOrientation orient,
                                  int flags = 0);

    virtual void DrawComboBoxDropButton(wxWindow *win,
                                        wxDC& dc,
                                        const wxRect& rect,
                                        int flags = 0);

    virtual void DrawDropArrow(wxWindow *win,
                               wxDC& dc,
                               const wxRect& rect,
                               int flags = 0);

    virtual void DrawCheckBox(wxWindow *win,
                              wxDC& dc,
                              const wxRect& rect,
                              int flags = 0);

    virtual void DrawPushButton(wxWindow *win,
                                wxDC& dc,
                                const wxRect& rect,
                                int flags = 0);

    virtual void DrawItemSelectionRect(wxWindow *win,
                                       wxDC& dc,
                                       const wxRect& rect,
                                       int flags = 0);

    virtual void DrawFocusRect(wxWindow* win, wxDC& dc, const wxRect& rect, int flags = 0);

    virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win);

    virtual wxRendererVersion GetVersion() const
    {
        return wxRendererVersion(wxRendererVersion::Current_Version,
                                 wxRendererVersion::Current_Age);
    }


    // Cleanup by deleting standard renderer
    static void Cleanup();

    // Get the generic object
    static wxRendererGeneric* DoGetGeneric();

protected:
    // draw the rectange using the first pen for the left and top sides and
    // the second one for the bottom and right ones
    void DrawShadedRect(wxDC& dc, wxRect *rect,
                        const wxPen& pen1, const wxPen& pen2);

    // the standard pens
    wxPen m_penBlack,
          m_penDarkGrey,
          m_penLightGrey,
          m_penHighlight;

    static wxRendererGeneric* sm_rendererGeneric;
};

// ============================================================================
// wxRendererGeneric implementation
// ============================================================================

// Get the generic object
wxRendererGeneric* wxRendererGeneric::DoGetGeneric()
{
    if (!sm_rendererGeneric)
        sm_rendererGeneric = new wxRendererGeneric;
    return sm_rendererGeneric;
}

// ----------------------------------------------------------------------------
// wxRendererGeneric creation
// ----------------------------------------------------------------------------

/* static */
wxRendererNative& wxRendererNative::GetGeneric()
{
    return * wxRendererGeneric::DoGetGeneric();
}

void wxRendererGeneric::Cleanup()
{
    if (sm_rendererGeneric)
        delete sm_rendererGeneric;

    sm_rendererGeneric = NULL;
}

wxRendererGeneric* wxRendererGeneric::sm_rendererGeneric = NULL;

wxRendererGeneric::wxRendererGeneric()
    : m_penBlack(wxSystemSettings::GetColour(wxSYS_COLOUR_3DDKSHADOW)),
      m_penDarkGrey(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)),
      m_penLightGrey(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)),
      m_penHighlight(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHIGHLIGHT))
{
}

// ----------------------------------------------------------------------------
// wxRendererGeneric helpers
// ----------------------------------------------------------------------------

void
wxRendererGeneric::DrawShadedRect(wxDC& dc,
                                  wxRect *rect,
                                  const wxPen& pen1,
                                  const wxPen& pen2)
{
    // draw the rectangle
    dc.SetPen(pen1);
    dc.DrawLine(rect->GetLeft(), rect->GetTop(),
                rect->GetLeft(), rect->GetBottom());
    dc.DrawLine(rect->GetLeft() + 1, rect->GetTop(),
                rect->GetRight(), rect->GetTop());
    dc.SetPen(pen2);
    dc.DrawLine(rect->GetRight(), rect->GetTop(),
                rect->GetRight(), rect->GetBottom());
    dc.DrawLine(rect->GetLeft(), rect->GetBottom(),
                rect->GetRight() + 1, rect->GetBottom());

    // adjust the rect
    rect->Inflate(-1);
}

// ----------------------------------------------------------------------------
// tree/list ctrl drawing
// ----------------------------------------------------------------------------

int
wxRendererGeneric::DrawHeaderButton(wxWindow* win,
                                    wxDC& dc,
                                    const wxRect& rect,
                                    int flags,
                                    wxHeaderSortIconType sortArrow,
                                    wxHeaderButtonParams* params)
{
    const wxCoord x = rect.x,
                  y = rect.y,
                  w = rect.width,
                  h = rect.height;

    dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)));
    dc.SetPen(*wxTRANSPARENT_PEN);
    dc.DrawRectangle(rect);

    dc.SetBrush(*wxTRANSPARENT_BRUSH);

    dc.SetPen(m_penBlack);
    dc.DrawLine( x+w-1, y, x+w-1, y+h );  // right (outer)
    dc.DrawLine( x, y+h-1, x+w, y+h-1 );  // bottom (outer)

    dc.SetPen(m_penDarkGrey);
    dc.DrawLine( x+w-2, y+1, x+w-2, y+h-1 );  // right (inner)
    dc.DrawLine( x+1, y+h-2, x+w-1, y+h-2 );  // bottom (inner)

    dc.SetPen(m_penHighlight);
    dc.DrawLine( x, y, x, y+h-1 ); // left (outer)
    dc.DrawLine( x, y, x+w-1, y ); // top (outer)

    return DrawHeaderButtonContents(win, dc, rect, flags, sortArrow, params);
}


int
wxRendererGeneric::DrawHeaderButtonContents(wxWindow *win,
                                            wxDC& dc,
                                            const wxRect& rect,
                                            int flags,
                                            wxHeaderSortIconType sortArrow,
                                            wxHeaderButtonParams* params)
{
    int labelWidth = 0;

    // Mark this item as selected.  For the generic version we'll just draw an
    // underline
    if ( flags & wxCONTROL_SELECTED )
    {
        // draw a line at the bottom of the header button, overlaying the
        // native hot-tracking line (on XP)
        const int penwidth = 3;
        int y = rect.y + rect.height + 1 - penwidth;
        wxColour c = (params && params->m_selectionColour.Ok()) ?
            params->m_selectionColour : wxColour(0x66, 0x66, 0x66);
        wxPen pen(c, penwidth);
        pen.SetCap(wxCAP_BUTT);
        dc.SetPen(pen);
        dc.DrawLine(rect.x, y, rect.x + rect.width, y);
    }

    // Draw an up or down arrow
    int arrowSpace = 0;
    if (sortArrow != wxHDR_SORT_ICON_NONE )
    {
        wxRect ar = rect;

        // make a rect for the arrow
        ar.height = 4;
        ar.width = 8;
        ar.y += (rect.height - ar.height)/2;
        ar.x = ar.x + rect.width - 3*ar.width/2;
        arrowSpace = 3*ar.width/2; // space to preserve when drawing the label

        wxPoint triPt[3];
        if ( sortArrow & wxHDR_SORT_ICON_UP )
        {
            triPt[0].x = ar.width / 2;
            triPt[0].y = 0;
            triPt[1].x = ar.width;
            triPt[1].y = ar.height;
            triPt[2].x = 0;
            triPt[2].y = ar.height;
        }
        else
        {
            triPt[0].x = 0;
            triPt[0].y = 0;
            triPt[1].x = ar.width;
            triPt[1].y = 0;
            triPt[2].x = ar.width / 2;
            triPt[2].y = ar.height;
        }

        wxColour c = (params && params->m_arrowColour.Ok()) ?
            params->m_arrowColour : wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW);
        dc.SetPen(wxPen(c));
        dc.SetBrush(wxBrush(c));
        dc.DrawPolygon( 3, triPt, ar.x, ar.y);
    }
    labelWidth += arrowSpace;

    const int margin = 5;   // number of pixels to reserve on either side of the label
    int bmpWidth = 0;
    int txtEnd = 0;

    if ( params && params->m_labelBitmap.Ok() )
        bmpWidth = params->m_labelBitmap.GetWidth() + 2;

    labelWidth += bmpWidth + 2*margin;

    // Draw a label if one is given
    if ( params && !params->m_labelText.empty() )
    {
        wxFont font  = params->m_labelFont.Ok() ?
            params->m_labelFont : win->GetFont();
        wxColour clr = params->m_labelColour.Ok() ?
            params->m_labelColour : win->GetForegroundColour();

        wxString label( params->m_labelText );

        dc.SetFont(font);
        dc.SetTextForeground(clr);
        dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);

        int tw, th, td, x, y;
        dc.GetTextExtent( label, &tw, &th, &td);
        labelWidth += tw;
        y = rect.y + wxMax(0, (rect.height - (th+td)) / 2);

        // truncate and add an ellipsis (...) if the text is too wide.
        int targetWidth = rect.width - arrowSpace - bmpWidth - 2*margin;
        if ( tw > targetWidth )
        {
            int ellipsisWidth;
            dc.GetTextExtent( wxT("..."), &ellipsisWidth, NULL);
            do {
                label.Truncate( label.length() - 1 );
                dc.GetTextExtent( label, &tw, &th);
            } while (tw + ellipsisWidth > targetWidth && label.length() );
            label.append( wxT("...") );
            tw += ellipsisWidth;
        }

        switch (params->m_labelAlignment)
        {
            default:
            case wxALIGN_LEFT:
                x = rect.x + margin;
                break;
            case wxALIGN_CENTER:
                x = rect.x + wxMax(0, (rect.width - arrowSpace  - tw - bmpWidth)/2);
                break;
            case wxALIGN_RIGHT:
                x = rect.x + wxMax(0, rect.width - arrowSpace - margin - tw - bmpWidth);
                break;
        }

        dc.DrawText(label, x, y);
        txtEnd = x + tw + 2;
    }

    // draw the bitmap if there is one
    if ( params && params->m_labelBitmap.Ok() )
    {
        int w, h, x, y;
        w = params->m_labelBitmap.GetWidth();
        h = params->m_labelBitmap.GetHeight();

        y = rect.y + wxMax(1, (rect.height - h) / 2);

        // if there is a text label, then put the bitmap at the end of the label
        if ( txtEnd != 0 )
        {
            x = txtEnd;
        }
        // otherwise use the alignment flags
        else
        {
            switch (params->m_labelAlignment)
            {
                default:
                case wxALIGN_LEFT:
                    x = rect.x + margin;
                    break;
                case wxALIGN_CENTER:
                    x = rect.x + wxMax(1, (rect.width - arrowSpace - w)/2);
                    break;
                case wxALIGN_RIGHT:
                    x = rect.x + wxMax(1, rect.width - arrowSpace - margin - w);
                    break;
            }
        }
        dc.DrawBitmap(params->m_labelBitmap, x, y, true);
    }
    return labelWidth;
}


int wxRendererGeneric::GetHeaderButtonHeight(wxWindow *win)
{
    // Copied and adapted from src/generic/listctrl.cpp
    const int HEADER_OFFSET_Y = 1;
    const int EXTRA_HEIGHT = 4;

    int w=0, h=14, d=0;
    if (win)
        win->GetTextExtent(wxT("Hg"), &w, &h, &d);

    return h + d + 2 * HEADER_OFFSET_Y + EXTRA_HEIGHT;
}


// draw the plus or minus sign
void
wxRendererGeneric::DrawTreeItemButton(wxWindow * WXUNUSED(win),
                                      wxDC& dc,
                                      const wxRect& rect,
                                      int flags)
{
    // store settings
    wxDCPenChanger penChanger(dc, *wxGREY_PEN);
    wxDCBrushChanger brushChanger(dc, *wxWHITE_BRUSH);

    dc.DrawRectangle(rect);

    // black lines
    const wxCoord xMiddle = rect.x + rect.width/2;
    const wxCoord yMiddle = rect.y + rect.height/2;

    // half of the length of the horz lines in "-" and "+"
    const wxCoord halfWidth = rect.width/2 - 2;
    dc.SetPen(*wxBLACK_PEN);
    dc.DrawLine(xMiddle - halfWidth, yMiddle,
                xMiddle + halfWidth + 1, yMiddle);

    if ( !(flags & wxCONTROL_EXPANDED) )
    {
        // turn "-" into "+"
        const wxCoord halfHeight = rect.height/2 - 2;
        dc.DrawLine(xMiddle, yMiddle - halfHeight,
                    xMiddle, yMiddle + halfHeight + 1);
    }
}

// ----------------------------------------------------------------------------
// sash drawing
// ----------------------------------------------------------------------------

wxSplitterRenderParams
wxRendererGeneric::GetSplitterParams(const wxWindow *win)
{
    // see below
    wxCoord sashWidth,
            border;

    if ( win->HasFlag(wxSP_3DSASH) )
        sashWidth = 7;
    else if ( win->HasFlag(wxSP_NOSASH) )
        sashWidth = 0;
    else // no 3D effect
        sashWidth = 3;

    if ( win->HasFlag(wxSP_3DBORDER) )
        border = 2;
    else // no 3D effect
        border = 0;

    return wxSplitterRenderParams(sashWidth, border, false);
}

void
wxRendererGeneric::DrawSplitterBorder(wxWindow *win,
                                      wxDC& dc,
                                      const wxRect& rectOrig,
                                      int WXUNUSED(falgs))
{
    if ( win->HasFlag(wxSP_3DBORDER) )
    {
        wxRect rect = rectOrig;
        DrawShadedRect(dc, &rect, m_penDarkGrey, m_penHighlight);
        DrawShadedRect(dc, &rect, m_penBlack, m_penLightGrey);
    }
}

void
wxRendererGeneric::DrawSplitterSash(wxWindow *win,
                                    wxDC& dcReal,
                                    const wxSize& sizeReal,
                                    wxCoord position,
                                    wxOrientation orient,
                                    int WXUNUSED(flags))
{
    // to avoid duplicating the same code for horizontal and vertical sashes,
    // simply mirror the DC instead if needed (i.e. if horz splitter)
    wxMirrorDC dc(dcReal, orient != wxVERTICAL);
    wxSize size = dc.Reflect(sizeReal);


    // we draw a Win32-like grey sash with possible 3D border here:
    //
    //   ---- this is position
    //  /
    // v
    // dWGGGDd
    // GWGGGDB
    // GWGGGDB  where G is light grey (face)
    // GWGGGDB        W    white      (light)
    // GWGGGDB        D    dark grey  (shadow)
    // GWGGGDB        B    black      (dark shadow)
    // GWGGGDB
    // GWGGGDB  and lower letters are our border (already drawn)
    // GWGGGDB
    // wWGGGDd
    //
    // only the middle 3 columns are drawn unless wxSP_3D is specified

    const wxCoord h = size.y;
    wxCoord offset = 0;

    // If we're drawing the border, draw the sash 3d lines shorter
    if ( win->HasFlag(wxSP_3DBORDER) )
    {
        offset = 1;
    }

    dc.SetPen(*wxTRANSPARENT_PEN);
    dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)));

    if ( win->HasFlag(wxSP_3DSASH) )
    {
        // Draw the 3D sash
        dc.DrawRectangle(position + 2, 0, 3, h);

        dc.SetPen(m_penLightGrey);
        dc.DrawLine(position, offset, position, h - offset);

        dc.SetPen(m_penHighlight);
        dc.DrawLine(position + 1, 0, position + 1, h);

        dc.SetPen(m_penDarkGrey);
        dc.DrawLine(position + 5, 0, position + 5, h);

        dc.SetPen(m_penBlack);
        dc.DrawLine(position + 6, offset, position + 6, h - offset);
    }
    else
    {
        // Draw a flat sash
        dc.DrawRectangle(position, 0, 3, h);
    }
}

// ----------------------------------------------------------------------------
// button drawing
// ----------------------------------------------------------------------------

void
wxRendererGeneric::DrawComboBoxDropButton(wxWindow *win,
                                          wxDC& dc,
                                          const wxRect& rect,
                                          int flags)
{
    DrawPushButton(win,dc,rect,flags);
    DrawDropArrow(win,dc,rect,flags);
}

void
wxRendererGeneric::DrawDropArrow(wxWindow *win,
                                 wxDC& dc,
                                 const wxRect& rect,
                                 int WXUNUSED(flags))
{
    // This generic implementation should be good
    // enough for Windows platforms (including XP).

    int arrowHalf = rect.width/5;
    int rectMid = rect.width / 2;
    int arrowTopY = (rect.height/2) - (arrowHalf/2);

    // This should always result in arrow with odd width.
    wxPoint pt[] =
    {
        wxPoint(rectMid - arrowHalf, arrowTopY),
        wxPoint(rectMid + arrowHalf, arrowTopY),
        wxPoint(rectMid, arrowTopY + arrowHalf)
    };
    dc.SetBrush(wxBrush(win->GetForegroundColour()));
    dc.SetPen(wxPen(win->GetForegroundColour()));
    dc.DrawPolygon(WXSIZEOF(pt), pt, rect.x, rect.y);
}

void
wxRendererGeneric::DrawCheckBox(wxWindow *WXUNUSED(win),
                                wxDC& dc,
                                const wxRect& rect,
                                int flags)
{
    dc.SetPen(*(flags & wxCONTROL_DISABLED ? wxGREY_PEN : wxBLACK_PEN));
    dc.SetBrush( *wxTRANSPARENT_BRUSH );
    dc.DrawRectangle(rect);

    if ( flags & wxCONTROL_CHECKED )
    {
        dc.DrawCheckMark(rect.Deflate(2, 2));
    }
}

void
wxRendererGeneric::DrawPushButton(wxWindow *win,
                                  wxDC& dc,
                                  const wxRect& rect,
                                  int flags)
{
    // Don't try anything too fancy. It'll just turn out looking
    // out-of-place on most platforms.
    wxColour bgCol = flags & wxCONTROL_DISABLED ?
                        wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE) :
                        win->GetBackgroundColour();
    dc.SetBrush(wxBrush(bgCol));
    dc.SetPen(wxPen(bgCol));
    dc.DrawRectangle(rect);
}

void
#ifdef __WXMAC__
wxRendererGeneric::DrawItemSelectionRect(wxWindow * win,
                                         wxDC& dc,
                                         const wxRect& rect,
                                         int flags)
#else
wxRendererGeneric::DrawItemSelectionRect(wxWindow * WXUNUSED(win),
                                         wxDC& dc,
                                         const wxRect& rect,
                                         int flags)
#endif
{
    wxBrush brush;
    if ( flags & wxCONTROL_SELECTED )
    {
        if ( flags & wxCONTROL_FOCUSED )
        {
            brush = wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT));
        }
        else // !focused
        {
            brush = wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNSHADOW));
        }
    }
    else // !selected
    {
        brush = *wxTRANSPARENT_BRUSH;
    }

    dc.SetBrush(brush);
    if ((flags & wxCONTROL_CURRENT) && (flags & wxCONTROL_FOCUSED)
#if defined( __WXMAC__ ) && !defined(__WXUNIVERSAL__)
                && IsControlActive( (ControlRef)win->GetHandle() )
#endif
    )
        dc.SetPen( *wxBLACK_PEN );
    else
        dc.SetPen( *wxTRANSPARENT_PEN );

    dc.DrawRectangle( rect );
}

void
wxRendererGeneric::DrawFocusRect(wxWindow* WXUNUSED(win), wxDC& dc, const wxRect& rect, int WXUNUSED(flags))
{
    // draw the pixels manually because the "dots" in wxPen with wxDOT style
    // may be short traits and not really dots
    //
    // note that to behave in the same manner as DrawRect(), we must exclude
    // the bottom and right borders from the rectangle
    wxCoord x1 = rect.GetLeft(),
            y1 = rect.GetTop(),
            x2 = rect.GetRight(),
            y2 = rect.GetBottom();

    dc.SetPen(m_penBlack);

#ifdef __WXMAC__
    dc.SetLogicalFunction(wxCOPY);
#else
    // this seems to be closer than what Windows does than wxINVERT although
    // I'm still not sure if it's correct
    dc.SetLogicalFunction(wxAND_REVERSE);
#endif

    wxCoord z;
    for ( z = x1 + 1; z < x2; z += 2 )
        dc.DrawPoint(z, rect.GetTop());

    wxCoord shift = z == x2 ? 0 : 1;
    for ( z = y1 + shift; z < y2; z += 2 )
        dc.DrawPoint(x2, z);

    shift = z == y2 ? 0 : 1;
    for ( z = x2 - shift; z > x1; z -= 2 )
        dc.DrawPoint(z, y2);

    shift = z == x1 ? 0 : 1;
    for ( z = y2 - shift; z > y1; z -= 2 )
        dc.DrawPoint(x1, z);

    dc.SetLogicalFunction(wxCOPY);
}

// ----------------------------------------------------------------------------
// A module to allow cleanup of generic renderer.
// ----------------------------------------------------------------------------

class wxGenericRendererModule: public wxModule
{
DECLARE_DYNAMIC_CLASS(wxGenericRendererModule)
public:
    wxGenericRendererModule() {}
    bool OnInit() { return true; }
    void OnExit() { wxRendererGeneric::Cleanup(); }
};

IMPLEMENT_DYNAMIC_CLASS(wxGenericRendererModule, wxModule)
Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: src/generic/renderg.cpp
	3	// Purpose: generic implementation of wxRendererNative (for any platform)
	4	// Author: Vadim Zeitlin
	5	// Modified by:
	6	// Created: 20.07.2003
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
	9	// License: wxWindows license
	10	///////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	// for compilers that support precompilation, includes "wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#ifdef __BORLANDC__
	24	#pragma hdrstop
	25	#endif
	26
	27	#include "wx/renderer.h"
	28
	29	#ifndef WX_PRECOMP
	30	#include "wx/string.h"
	31	#include "wx/dc.h"
	32	#include "wx/settings.h"
	33	#include "wx/gdicmn.h"
	34	#include "wx/module.h"
	35	#endif //WX_PRECOMP
	36
	37	#include "wx/splitter.h"
	38	#include "wx/dcmirror.h"
	39
	40	#ifdef __WXMAC__
	41	#include "wx/mac/private.h"
	42	#endif
	43
	44	// ----------------------------------------------------------------------------
	45	// wxRendererGeneric: our wxRendererNative implementation
	46	// ----------------------------------------------------------------------------
	47
	48	class WXDLLEXPORT wxRendererGeneric : public wxRendererNative
	49	{
	50	public:
	51	wxRendererGeneric();
	52
	53	virtual int DrawHeaderButton(wxWindow *win,
	54	wxDC& dc,
	55	const wxRect& rect,
	56	int flags = 0,
	57	wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
	58	wxHeaderButtonParams* params = NULL);
	59
	60	virtual int DrawHeaderButtonContents(wxWindow *win,
	61	wxDC& dc,
	62	const wxRect& rect,
	63	int flags = 0,
	64	wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
	65	wxHeaderButtonParams* params = NULL);
	66
	67	virtual int GetHeaderButtonHeight(wxWindow *win);
	68
	69	virtual void DrawTreeItemButton(wxWindow *win,
	70	wxDC& dc,
	71	const wxRect& rect,
	72	int flags = 0);
	73
	74	virtual void DrawSplitterBorder(wxWindow *win,
	75	wxDC& dc,
	76	const wxRect& rect,
	77	int flags = 0);
	78
	79	virtual void DrawSplitterSash(wxWindow *win,
	80	wxDC& dc,
	81	const wxSize& size,
	82	wxCoord position,
	83	wxOrientation orient,
	84	int flags = 0);
	85
	86	virtual void DrawComboBoxDropButton(wxWindow *win,
	87	wxDC& dc,
	88	const wxRect& rect,
	89	int flags = 0);
	90
	91	virtual void DrawDropArrow(wxWindow *win,
	92	wxDC& dc,
	93	const wxRect& rect,
	94	int flags = 0);
	95
	96	virtual void DrawCheckBox(wxWindow *win,
	97	wxDC& dc,
	98	const wxRect& rect,
	99	int flags = 0);
	100
	101	virtual void DrawPushButton(wxWindow *win,
	102	wxDC& dc,
	103	const wxRect& rect,
	104	int flags = 0);
	105
	106	virtual void DrawItemSelectionRect(wxWindow *win,
	107	wxDC& dc,
	108	const wxRect& rect,
	109	int flags = 0);
	110
	111	virtual void DrawFocusRect(wxWindow* win, wxDC& dc, const wxRect& rect, int flags = 0);
	112
	113	virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win);
	114
	115	virtual wxRendererVersion GetVersion() const
	116	{
	117	return wxRendererVersion(wxRendererVersion::Current_Version,
	118	wxRendererVersion::Current_Age);
	119	}
	120
	121
	122	// Cleanup by deleting standard renderer
	123	static void Cleanup();
	124
	125	// Get the generic object
	126	static wxRendererGeneric* DoGetGeneric();
	127
	128	protected:
	129	// draw the rectange using the first pen for the left and top sides and
	130	// the second one for the bottom and right ones
	131	void DrawShadedRect(wxDC& dc, wxRect *rect,
	132	const wxPen& pen1, const wxPen& pen2);
	133
	134	// the standard pens
	135	wxPen m_penBlack,
	136	m_penDarkGrey,
	137	m_penLightGrey,
	138	m_penHighlight;
	139
	140	static wxRendererGeneric* sm_rendererGeneric;
	141	};
	142
	143	// ============================================================================
	144	// wxRendererGeneric implementation
	145	// ============================================================================
	146
	147	// Get the generic object
	148	wxRendererGeneric* wxRendererGeneric::DoGetGeneric()
	149	{
	150	if (!sm_rendererGeneric)
	151	sm_rendererGeneric = new wxRendererGeneric;
	152	return sm_rendererGeneric;
	153	}
	154
	155	// ----------------------------------------------------------------------------
	156	// wxRendererGeneric creation
	157	// ----------------------------------------------------------------------------
	158
	159	/* static */
	160	wxRendererNative& wxRendererNative::GetGeneric()
	161	{
	162	return * wxRendererGeneric::DoGetGeneric();
	163	}
	164
	165	void wxRendererGeneric::Cleanup()
	166	{
	167	if (sm_rendererGeneric)
	168	delete sm_rendererGeneric;
	169
	170	sm_rendererGeneric = NULL;
	171	}
	172
	173	wxRendererGeneric* wxRendererGeneric::sm_rendererGeneric = NULL;
	174
	175	wxRendererGeneric::wxRendererGeneric()
	176	: m_penBlack(wxSystemSettings::GetColour(wxSYS_COLOUR_3DDKSHADOW)),
	177	m_penDarkGrey(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)),
	178	m_penLightGrey(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)),
	179	m_penHighlight(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHIGHLIGHT))
	180	{
	181	}
	182
	183	// ----------------------------------------------------------------------------
	184	// wxRendererGeneric helpers
	185	// ----------------------------------------------------------------------------
	186
	187	void
	188	wxRendererGeneric::DrawShadedRect(wxDC& dc,
	189	wxRect *rect,
	190	const wxPen& pen1,
	191	const wxPen& pen2)
	192	{
	193	// draw the rectangle
	194	dc.SetPen(pen1);
	195	dc.DrawLine(rect->GetLeft(), rect->GetTop(),
	196	rect->GetLeft(), rect->GetBottom());
	197	dc.DrawLine(rect->GetLeft() + 1, rect->GetTop(),
	198	rect->GetRight(), rect->GetTop());
	199	dc.SetPen(pen2);
	200	dc.DrawLine(rect->GetRight(), rect->GetTop(),
	201	rect->GetRight(), rect->GetBottom());
	202	dc.DrawLine(rect->GetLeft(), rect->GetBottom(),
	203	rect->GetRight() + 1, rect->GetBottom());
	204
	205	// adjust the rect
	206	rect->Inflate(-1);
	207	}
	208
	209	// ----------------------------------------------------------------------------
	210	// tree/list ctrl drawing
	211	// ----------------------------------------------------------------------------
	212
	213	int
	214	wxRendererGeneric::DrawHeaderButton(wxWindow* win,
	215	wxDC& dc,
	216	const wxRect& rect,
	217	int flags,
	218	wxHeaderSortIconType sortArrow,
	219	wxHeaderButtonParams* params)
	220	{
	221	const wxCoord x = rect.x,
	222	y = rect.y,
	223	w = rect.width,
	224	h = rect.height;
	225
	226	dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)));
	227	dc.SetPen(*wxTRANSPARENT_PEN);
	228	dc.DrawRectangle(rect);
	229
	230	dc.SetBrush(*wxTRANSPARENT_BRUSH);
	231
	232	dc.SetPen(m_penBlack);
	233	dc.DrawLine( x+w-1, y, x+w-1, y+h ); // right (outer)
	234	dc.DrawLine( x, y+h-1, x+w, y+h-1 ); // bottom (outer)
	235
	236	dc.SetPen(m_penDarkGrey);
	237	dc.DrawLine( x+w-2, y+1, x+w-2, y+h-1 ); // right (inner)
	238	dc.DrawLine( x+1, y+h-2, x+w-1, y+h-2 ); // bottom (inner)
	239
	240	dc.SetPen(m_penHighlight);
	241	dc.DrawLine( x, y, x, y+h-1 ); // left (outer)
	242	dc.DrawLine( x, y, x+w-1, y ); // top (outer)
	243
	244	return DrawHeaderButtonContents(win, dc, rect, flags, sortArrow, params);
	245	}
	246
	247
	248	int
	249	wxRendererGeneric::DrawHeaderButtonContents(wxWindow *win,
	250	wxDC& dc,
	251	const wxRect& rect,
	252	int flags,
	253	wxHeaderSortIconType sortArrow,
	254	wxHeaderButtonParams* params)
	255	{
	256	int labelWidth = 0;
	257
	258	// Mark this item as selected. For the generic version we'll just draw an
	259	// underline
	260	if ( flags & wxCONTROL_SELECTED )
	261	{
	262	// draw a line at the bottom of the header button, overlaying the
	263	// native hot-tracking line (on XP)
	264	const int penwidth = 3;
	265	int y = rect.y + rect.height + 1 - penwidth;
	266	wxColour c = (params && params->m_selectionColour.Ok()) ?
	267	params->m_selectionColour : wxColour(0x66, 0x66, 0x66);
	268	wxPen pen(c, penwidth);
	269	pen.SetCap(wxCAP_BUTT);
	270	dc.SetPen(pen);
	271	dc.DrawLine(rect.x, y, rect.x + rect.width, y);
	272	}
	273
	274	// Draw an up or down arrow
	275	int arrowSpace = 0;
	276	if (sortArrow != wxHDR_SORT_ICON_NONE )
	277	{
	278	wxRect ar = rect;
	279
	280	// make a rect for the arrow
	281	ar.height = 4;
	282	ar.width = 8;
	283	ar.y += (rect.height - ar.height)/2;
	284	ar.x = ar.x + rect.width - 3*ar.width/2;
	285	arrowSpace = 3*ar.width/2; // space to preserve when drawing the label
	286
	287	wxPoint triPt[3];
	288	if ( sortArrow & wxHDR_SORT_ICON_UP )
	289	{
	290	triPt[0].x = ar.width / 2;
	291	triPt[0].y = 0;
	292	triPt[1].x = ar.width;
	293	triPt[1].y = ar.height;
	294	triPt[2].x = 0;
	295	triPt[2].y = ar.height;
	296	}
	297	else
	298	{
	299	triPt[0].x = 0;
	300	triPt[0].y = 0;
	301	triPt[1].x = ar.width;
	302	triPt[1].y = 0;
	303	triPt[2].x = ar.width / 2;
	304	triPt[2].y = ar.height;
	305	}
	306
	307	wxColour c = (params && params->m_arrowColour.Ok()) ?
	308	params->m_arrowColour : wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW);
	309	dc.SetPen(wxPen(c));
	310	dc.SetBrush(wxBrush(c));
	311	dc.DrawPolygon( 3, triPt, ar.x, ar.y);
	312	}
	313	labelWidth += arrowSpace;
	314
	315	const int margin = 5; // number of pixels to reserve on either side of the label
	316	int bmpWidth = 0;
	317	int txtEnd = 0;
	318
	319	if ( params && params->m_labelBitmap.Ok() )
	320	bmpWidth = params->m_labelBitmap.GetWidth() + 2;
	321
	322	labelWidth += bmpWidth + 2*margin;
	323
	324	// Draw a label if one is given
	325	if ( params && !params->m_labelText.empty() )
	326	{
	327	wxFont font = params->m_labelFont.Ok() ?
	328	params->m_labelFont : win->GetFont();
	329	wxColour clr = params->m_labelColour.Ok() ?
	330	params->m_labelColour : win->GetForegroundColour();
	331
	332	wxString label( params->m_labelText );
	333
	334	dc.SetFont(font);
	335	dc.SetTextForeground(clr);
	336	dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
	337
	338	int tw, th, td, x, y;
	339	dc.GetTextExtent( label, &tw, &th, &td);
	340	labelWidth += tw;
	341	y = rect.y + wxMax(0, (rect.height - (th+td)) / 2);
	342
	343	// truncate and add an ellipsis (...) if the text is too wide.
	344	int targetWidth = rect.width - arrowSpace - bmpWidth - 2*margin;
	345	if ( tw > targetWidth )
	346	{
	347	int ellipsisWidth;
	348	dc.GetTextExtent( wxT("..."), &ellipsisWidth, NULL);
	349	do {
	350	label.Truncate( label.length() - 1 );
	351	dc.GetTextExtent( label, &tw, &th);
	352	} while (tw + ellipsisWidth > targetWidth && label.length() );
	353	label.append( wxT("...") );
	354	tw += ellipsisWidth;
	355	}
	356
	357	switch (params->m_labelAlignment)
	358	{
	359	default:
	360	case wxALIGN_LEFT:
	361	x = rect.x + margin;
	362	break;
	363	case wxALIGN_CENTER:
	364	x = rect.x + wxMax(0, (rect.width - arrowSpace - tw - bmpWidth)/2);
	365	break;
	366	case wxALIGN_RIGHT:
	367	x = rect.x + wxMax(0, rect.width - arrowSpace - margin - tw - bmpWidth);
	368	break;
	369	}
	370
	371	dc.DrawText(label, x, y);
	372	txtEnd = x + tw + 2;
	373	}
	374
	375	// draw the bitmap if there is one
	376	if ( params && params->m_labelBitmap.Ok() )
	377	{
	378	int w, h, x, y;
	379	w = params->m_labelBitmap.GetWidth();
	380	h = params->m_labelBitmap.GetHeight();
	381
	382	y = rect.y + wxMax(1, (rect.height - h) / 2);
	383
	384	// if there is a text label, then put the bitmap at the end of the label
	385	if ( txtEnd != 0 )
	386	{
	387	x = txtEnd;
	388	}
	389	// otherwise use the alignment flags
	390	else
	391	{
	392	switch (params->m_labelAlignment)
	393	{
	394	default:
	395	case wxALIGN_LEFT:
	396	x = rect.x + margin;
	397	break;
	398	case wxALIGN_CENTER:
	399	x = rect.x + wxMax(1, (rect.width - arrowSpace - w)/2);
	400	break;
	401	case wxALIGN_RIGHT:
	402	x = rect.x + wxMax(1, rect.width - arrowSpace - margin - w);
	403	break;
	404	}
	405	}
	406	dc.DrawBitmap(params->m_labelBitmap, x, y, true);
	407	}
	408	return labelWidth;
	409	}
	410
	411
	412	int wxRendererGeneric::GetHeaderButtonHeight(wxWindow *win)
	413	{
	414	// Copied and adapted from src/generic/listctrl.cpp
	415	const int HEADER_OFFSET_Y = 1;
	416	const int EXTRA_HEIGHT = 4;
	417
	418	int w=0, h=14, d=0;
	419	if (win)
	420	win->GetTextExtent(wxT("Hg"), &w, &h, &d);
	421
	422	return h + d + 2 * HEADER_OFFSET_Y + EXTRA_HEIGHT;
	423	}
	424
	425
	426	// draw the plus or minus sign
	427	void
	428	wxRendererGeneric::DrawTreeItemButton(wxWindow * WXUNUSED(win),
	429	wxDC& dc,
	430	const wxRect& rect,
	431	int flags)
	432	{
	433	// store settings
	434	wxDCPenChanger penChanger(dc, *wxGREY_PEN);
	435	wxDCBrushChanger brushChanger(dc, *wxWHITE_BRUSH);
	436
	437	dc.DrawRectangle(rect);
	438
	439	// black lines
	440	const wxCoord xMiddle = rect.x + rect.width/2;
	441	const wxCoord yMiddle = rect.y + rect.height/2;
	442
	443	// half of the length of the horz lines in "-" and "+"
	444	const wxCoord halfWidth = rect.width/2 - 2;
	445	dc.SetPen(*wxBLACK_PEN);
	446	dc.DrawLine(xMiddle - halfWidth, yMiddle,
	447	xMiddle + halfWidth + 1, yMiddle);
	448
	449	if ( !(flags & wxCONTROL_EXPANDED) )
	450	{
	451	// turn "-" into "+"
	452	const wxCoord halfHeight = rect.height/2 - 2;
	453	dc.DrawLine(xMiddle, yMiddle - halfHeight,
	454	xMiddle, yMiddle + halfHeight + 1);
	455	}
	456	}
	457
	458	// ----------------------------------------------------------------------------
	459	// sash drawing
	460	// ----------------------------------------------------------------------------
	461
	462	wxSplitterRenderParams
	463	wxRendererGeneric::GetSplitterParams(const wxWindow *win)
	464	{
	465	// see below
	466	wxCoord sashWidth,
	467	border;
	468
	469	if ( win->HasFlag(wxSP_3DSASH) )
	470	sashWidth = 7;
	471	else if ( win->HasFlag(wxSP_NOSASH) )
	472	sashWidth = 0;
	473	else // no 3D effect
	474	sashWidth = 3;
	475
	476	if ( win->HasFlag(wxSP_3DBORDER) )
	477	border = 2;
	478	else // no 3D effect
	479	border = 0;
	480
	481	return wxSplitterRenderParams(sashWidth, border, false);
	482	}
	483
	484	void
	485	wxRendererGeneric::DrawSplitterBorder(wxWindow *win,
	486	wxDC& dc,
	487	const wxRect& rectOrig,
	488	int WXUNUSED(falgs))
	489	{
	490	if ( win->HasFlag(wxSP_3DBORDER) )
	491	{
	492	wxRect rect = rectOrig;
	493	DrawShadedRect(dc, &rect, m_penDarkGrey, m_penHighlight);
	494	DrawShadedRect(dc, &rect, m_penBlack, m_penLightGrey);
	495	}
	496	}
	497
	498	void
	499	wxRendererGeneric::DrawSplitterSash(wxWindow *win,
	500	wxDC& dcReal,
	501	const wxSize& sizeReal,
	502	wxCoord position,
	503	wxOrientation orient,
	504	int WXUNUSED(flags))
	505	{
	506	// to avoid duplicating the same code for horizontal and vertical sashes,
	507	// simply mirror the DC instead if needed (i.e. if horz splitter)
	508	wxMirrorDC dc(dcReal, orient != wxVERTICAL);
	509	wxSize size = dc.Reflect(sizeReal);
	510
	511
	512	// we draw a Win32-like grey sash with possible 3D border here:
	513	//
	514	// ---- this is position
	515	// /
	516	// v
	517	// dWGGGDd
	518	// GWGGGDB
	519	// GWGGGDB where G is light grey (face)
	520	// GWGGGDB W white (light)
	521	// GWGGGDB D dark grey (shadow)
	522	// GWGGGDB B black (dark shadow)
	523	// GWGGGDB
	524	// GWGGGDB and lower letters are our border (already drawn)
	525	// GWGGGDB
	526	// wWGGGDd
	527	//
	528	// only the middle 3 columns are drawn unless wxSP_3D is specified
	529
	530	const wxCoord h = size.y;
	531	wxCoord offset = 0;
	532
	533	// If we're drawing the border, draw the sash 3d lines shorter
	534	if ( win->HasFlag(wxSP_3DBORDER) )
	535	{
	536	offset = 1;
	537	}
	538
	539	dc.SetPen(*wxTRANSPARENT_PEN);
	540	dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)));
	541
	542	if ( win->HasFlag(wxSP_3DSASH) )
	543	{
	544	// Draw the 3D sash
	545	dc.DrawRectangle(position + 2, 0, 3, h);
	546
	547	dc.SetPen(m_penLightGrey);
	548	dc.DrawLine(position, offset, position, h - offset);
	549
	550	dc.SetPen(m_penHighlight);
	551	dc.DrawLine(position + 1, 0, position + 1, h);
	552
	553	dc.SetPen(m_penDarkGrey);
	554	dc.DrawLine(position + 5, 0, position + 5, h);
	555
	556	dc.SetPen(m_penBlack);
	557	dc.DrawLine(position + 6, offset, position + 6, h - offset);
	558	}
	559	else
	560	{
	561	// Draw a flat sash
	562	dc.DrawRectangle(position, 0, 3, h);
	563	}
	564	}
	565
	566	// ----------------------------------------------------------------------------
	567	// button drawing
	568	// ----------------------------------------------------------------------------
	569
	570	void
	571	wxRendererGeneric::DrawComboBoxDropButton(wxWindow *win,
	572	wxDC& dc,
	573	const wxRect& rect,
	574	int flags)
	575	{
	576	DrawPushButton(win,dc,rect,flags);
	577	DrawDropArrow(win,dc,rect,flags);
	578	}
	579
	580	void
	581	wxRendererGeneric::DrawDropArrow(wxWindow *win,
	582	wxDC& dc,
	583	const wxRect& rect,
	584	int WXUNUSED(flags))
	585	{
	586	// This generic implementation should be good
	587	// enough for Windows platforms (including XP).
	588
	589	int arrowHalf = rect.width/5;
	590	int rectMid = rect.width / 2;
	591	int arrowTopY = (rect.height/2) - (arrowHalf/2);
	592
	593	// This should always result in arrow with odd width.
	594	wxPoint pt[] =
	595	{
	596	wxPoint(rectMid - arrowHalf, arrowTopY),
	597	wxPoint(rectMid + arrowHalf, arrowTopY),
	598	wxPoint(rectMid, arrowTopY + arrowHalf)
	599	};
	600	dc.SetBrush(wxBrush(win->GetForegroundColour()));
	601	dc.SetPen(wxPen(win->GetForegroundColour()));
	602	dc.DrawPolygon(WXSIZEOF(pt), pt, rect.x, rect.y);
	603	}
	604
	605	void
	606	wxRendererGeneric::DrawCheckBox(wxWindow *WXUNUSED(win),
	607	wxDC& dc,
	608	const wxRect& rect,
	609	int flags)
	610	{
	611	dc.SetPen(*(flags & wxCONTROL_DISABLED ? wxGREY_PEN : wxBLACK_PEN));
	612	dc.SetBrush( *wxTRANSPARENT_BRUSH );
	613	dc.DrawRectangle(rect);
	614
	615	if ( flags & wxCONTROL_CHECKED )
	616	{
	617	dc.DrawCheckMark(rect.Deflate(2, 2));
	618	}
	619	}
	620
	621	void
	622	wxRendererGeneric::DrawPushButton(wxWindow *win,
	623	wxDC& dc,
	624	const wxRect& rect,
	625	int flags)
	626	{
	627	// Don't try anything too fancy. It'll just turn out looking
	628	// out-of-place on most platforms.
	629	wxColour bgCol = flags & wxCONTROL_DISABLED ?
	630	wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE) :
	631	win->GetBackgroundColour();
	632	dc.SetBrush(wxBrush(bgCol));
	633	dc.SetPen(wxPen(bgCol));
	634	dc.DrawRectangle(rect);
	635	}
	636
	637	void
	638	#ifdef __WXMAC__
	639	wxRendererGeneric::DrawItemSelectionRect(wxWindow * win,
	640	wxDC& dc,
	641	const wxRect& rect,
	642	int flags)
	643	#else
	644	wxRendererGeneric::DrawItemSelectionRect(wxWindow * WXUNUSED(win),
	645	wxDC& dc,
	646	const wxRect& rect,
	647	int flags)
	648	#endif
	649	{
	650	wxBrush brush;
	651	if ( flags & wxCONTROL_SELECTED )
	652	{
	653	if ( flags & wxCONTROL_FOCUSED )
	654	{
	655	brush = wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT));
	656	}
	657	else // !focused
	658	{
	659	brush = wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNSHADOW));
	660	}
	661	}
	662	else // !selected
	663	{
	664	brush = *wxTRANSPARENT_BRUSH;
	665	}
	666
	667	dc.SetBrush(brush);
	668	if ((flags & wxCONTROL_CURRENT) && (flags & wxCONTROL_FOCUSED)
	669	#if defined( __WXMAC__ ) && !defined(__WXUNIVERSAL__)
	670	&& IsControlActive( (ControlRef)win->GetHandle() )
	671	#endif
	672	)
	673	dc.SetPen( *wxBLACK_PEN );
	674	else
	675	dc.SetPen( *wxTRANSPARENT_PEN );
	676
	677	dc.DrawRectangle( rect );
	678	}
	679
	680	void
	681	wxRendererGeneric::DrawFocusRect(wxWindow* WXUNUSED(win), wxDC& dc, const wxRect& rect, int WXUNUSED(flags))
	682	{
	683	// draw the pixels manually because the "dots" in wxPen with wxDOT style
	684	// may be short traits and not really dots
	685	//
	686	// note that to behave in the same manner as DrawRect(), we must exclude
	687	// the bottom and right borders from the rectangle
	688	wxCoord x1 = rect.GetLeft(),
	689	y1 = rect.GetTop(),
	690	x2 = rect.GetRight(),
	691	y2 = rect.GetBottom();
	692
	693	dc.SetPen(m_penBlack);
	694
	695	#ifdef __WXMAC__
	696	dc.SetLogicalFunction(wxCOPY);
	697	#else
	698	// this seems to be closer than what Windows does than wxINVERT although
	699	// I'm still not sure if it's correct
	700	dc.SetLogicalFunction(wxAND_REVERSE);
	701	#endif
	702
	703	wxCoord z;
	704	for ( z = x1 + 1; z < x2; z += 2 )
	705	dc.DrawPoint(z, rect.GetTop());
	706
	707	wxCoord shift = z == x2 ? 0 : 1;
	708	for ( z = y1 + shift; z < y2; z += 2 )
	709	dc.DrawPoint(x2, z);
	710
	711	shift = z == y2 ? 0 : 1;
	712	for ( z = x2 - shift; z > x1; z -= 2 )
	713	dc.DrawPoint(z, y2);
	714
	715	shift = z == x1 ? 0 : 1;
	716	for ( z = y2 - shift; z > y1; z -= 2 )
	717	dc.DrawPoint(x1, z);
	718
	719	dc.SetLogicalFunction(wxCOPY);
	720	}
	721
	722	// ----------------------------------------------------------------------------
	723	// A module to allow cleanup of generic renderer.
	724	// ----------------------------------------------------------------------------
	725
	726	class wxGenericRendererModule: public wxModule
	727	{
	728	DECLARE_DYNAMIC_CLASS(wxGenericRendererModule)
	729	public:
	730	wxGenericRendererModule() {}
	731	bool OnInit() { return true; }
	732	void OnExit() { wxRendererGeneric::Cleanup(); }
	733	};
	734
	735	IMPLEMENT_DYNAMIC_CLASS(wxGenericRendererModule, wxModule)