gtk.cpp

Wxpython Implemented on Windows CE, Source code

    if ( border != wxBORDER_NONE )
    {
        if ( flags & wxCONTROL_FOCUSED )
        {
            DrawRect(dc, &rect, m_penBlack);
            DrawAntiShadedRect(dc, &rect, m_penDarkGrey, m_penHighlight);
        }
        else // !focused
        {
            DrawAntiShadedRect(dc, &rect, m_penDarkGrey, m_penHighlight);
            DrawAntiShadedRect(dc, &rect, m_penBlack, m_penHighlight);
        }
    }

    if ( rectIn )
        *rectIn = rect;
}

void wxGTKRenderer::DrawButtonBorder(wxDC& dc,
                                     const wxRect& rectTotal,
                                     int flags,
                                     wxRect *rectIn)
{
    wxRect rect = rectTotal;

    if ( flags & wxCONTROL_PRESSED )
    {
        // button pressed: draw a black border around it and an inward shade
        DrawRect(dc, &rect, m_penBlack);

        for ( size_t width = 0; width < BORDER_THICKNESS; width++ )
        {
            DrawAntiShadedRect(dc, &rect, m_penDarkGrey, m_penHighlight);
            DrawAntiShadedRect(dc, &rect, m_penBlack, m_penDarkGrey);
        }
    }
    else
    {
        // button not pressed

        if ( flags & wxCONTROL_ISDEFAULT )
        {
            // TODO
        }

        if ( flags & wxCONTROL_FOCUSED )
        {
            // button is currently default: add an extra border around it
            DrawRect(dc, &rect, m_penBlack);
        }

        // now draw a normal button
        for ( size_t width = 0; width < BORDER_THICKNESS; width++ )
        {
            DrawShadedRect(dc, &rect, m_penHighlight, m_penBlack);
            DrawAntiShadedRect(dc, &rect,
                               wxPen(GetBackgroundColour(flags), 0, wxSOLID),
                               m_penDarkGrey);
        }
    }

    if ( rectIn )
    {
        *rectIn = rect;
    }
}

// ----------------------------------------------------------------------------
// lines and frames
// ----------------------------------------------------------------------------

void wxGTKRenderer::DrawHorizontalLine(wxDC& dc,
                                       wxCoord y, wxCoord x1, wxCoord x2)
{
    dc.SetPen(m_penDarkGrey);
    dc.DrawLine(x1, y, x2 + 1, y);
    dc.SetPen(m_penHighlight);
    y++;
    dc.DrawLine(x1, y, x2 + 1, y);
}

void wxGTKRenderer::DrawVerticalLine(wxDC& dc,
                                     wxCoord x, wxCoord y1, wxCoord y2)
{
    dc.SetPen(m_penDarkGrey);
    dc.DrawLine(x, y1, x, y2 + 1);
    dc.SetPen(m_penHighlight);
    x++;
    dc.DrawLine(x, y1, x, y2 + 1);
}

void wxGTKRenderer::DrawFrame(wxDC& dc,
                              const wxString& label,
                              const wxRect& rect,
                              int flags,
                              int alignment,
                              int indexAccel)
{
    wxCoord height = 0; // of the label
    wxRect rectFrame = rect;
    if ( !label.empty() )
    {
        // the text should touch the top border of the rect, so the frame
        // itself should be lower
        dc.GetTextExtent(label, NULL, &height);
        rectFrame.y += height / 2;
        rectFrame.height -= height / 2;

        // TODO: the +4 should be customizable

        wxRect rectText;
        rectText.x = rectFrame.x + 4;
        rectText.y = rect.y;
        rectText.width = rectFrame.width - 8;
        rectText.height = height;

        wxRect rectLabel;
        DrawLabel(dc, label, rectText, flags, alignment, indexAccel, &rectLabel);
        rectLabel.x -= 1;
        rectLabel.width += 2;

        StandardDrawFrame(dc, rectFrame, rectLabel);

        // GTK+ does it like this
        dc.SetPen(m_penHighlight);
        dc.DrawPoint(rectText.x, rectFrame.y);
        dc.DrawPoint(rectText.x + rectLabel.width - 3, rectFrame.y);
    }
    else
    {
        // just draw the complete frame
        DrawShadedRect(dc, &rectFrame, m_penDarkGrey, m_penHighlight);
        DrawShadedRect(dc, &rectFrame, m_penHighlight, m_penDarkGrey);
    }
}

// ----------------------------------------------------------------------------
// label
// ----------------------------------------------------------------------------

void wxGTKRenderer::DrawLabel(wxDC& dc,
                              const wxString& label,
                              const wxRect& rect,
                              int flags,
                              int alignment,
                              int indexAccel,
                              wxRect *rectBounds)
{
    DrawButtonLabel(dc, label, wxNullBitmap, rect, flags,
                    alignment, indexAccel, rectBounds);
}

void wxGTKRenderer::DrawButtonLabel(wxDC& dc,
                                    const wxString& label,
                                    const wxBitmap& image,
                                    const wxRect& rect,
                                    int flags,
                                    int alignment,
                                    int indexAccel,
                                    wxRect *rectBounds)
{
    if ( flags & wxCONTROL_DISABLED )
    {
        // make the text grey and draw a shade for it
        dc.SetTextForeground(*wxWHITE); // FIXME hardcoded colour
        wxRect rectShadow = rect;
        rectShadow.x++;
        rectShadow.y++;
        dc.DrawLabel(label, rectShadow, alignment, indexAccel);
        dc.SetTextForeground(wxSCHEME_COLOUR(m_scheme, CONTROL_TEXT_DISABLED));
    }
    else
    {
        dc.SetTextForeground(wxSCHEME_COLOUR(m_scheme, CONTROL_TEXT));
    }

    dc.DrawLabel(label, image, rect, alignment, indexAccel, rectBounds);
}

void wxGTKRenderer::DrawItem(wxDC& dc,
                             const wxString& label,
                             const wxRect& rect,
                             int flags)
{
    wxLogTrace(_T("listbox"), _T("drawing item '%s' at (%d, %d)-(%d, %d)"),
               label.c_str(),
               rect.x, rect.y,
               rect.x + rect.width, rect.y + rect.height);

    wxColour colFg;
    if ( flags & wxCONTROL_SELECTED )
    {
        dc.SetBrush(wxBrush(wxSCHEME_COLOUR(m_scheme, HIGHLIGHT), wxSOLID));
        dc.SetPen(*wxTRANSPARENT_PEN);
        dc.DrawRectangle(rect);

        colFg = dc.GetTextForeground();
        dc.SetTextForeground(wxSCHEME_COLOUR(m_scheme, HIGHLIGHT_TEXT));
    }

    if ( flags & wxCONTROL_FOCUSED )
    {
        dc.SetBrush(*wxTRANSPARENT_BRUSH);
        wxRect rectFocus = rect;
        DrawRect(dc, &rectFocus, m_penBlack);
    }

    wxRect rectText = rect;
    rectText.x += 2;
    rectText.y++;
    dc.DrawLabel(label, wxNullBitmap, rectText);

    if ( flags & wxCONTROL_SELECTED )
    {
        dc.SetBackgroundMode(wxTRANSPARENT);
    }

    // restore the text colour
    if ( colFg.Ok() )
    {
        dc.SetTextForeground(colFg);
    }
}

void wxGTKRenderer::DrawCheckItem(wxDC& dc,
                                  const wxString& label,
                                  const wxBitmap& bitmap,
                                  const wxRect& rect,
                                  int flags)
{
    wxRect rectBitmap = rect;
    rectBitmap.x -= 1;
    rectBitmap.width = GetCheckBitmapSize().x;

    // never draw the focus rect around the check indicators here
    DrawCheckButton(dc, wxEmptyString, bitmap, rectBitmap, flags & ~wxCONTROL_FOCUSED);

    wxRect rectLabel = rect;
    wxCoord shift = rectBitmap.width + 2*GetCheckItemMargin();
    rectLabel.x += shift;
    rectLabel.width -= shift;
    DrawItem(dc, label, rectLabel, flags);
}

// ----------------------------------------------------------------------------
// check/radion buttons
// ----------------------------------------------------------------------------

void wxGTKRenderer::DrawUndeterminedBitmap(wxDC& dc,
                                           const wxRect& rectTotal,
                                           bool isPressed)
{
    // FIXME: For sure it is not GTK look but it is better than nothing.
    // Show me correct look and I will immediatelly make it better (ABX)
    wxRect rect = rectTotal;

    wxColour col1, col2;

    if ( isPressed )
    {
        col1 = wxSCHEME_COLOUR(m_scheme, SHADOW_DARK);
        col2 = wxSCHEME_COLOUR(m_scheme, CONTROL_PRESSED);
    }
    else
    {
        col1 = wxSCHEME_COLOUR(m_scheme, SHADOW_DARK);
        col2 = wxSCHEME_COLOUR(m_scheme, SHADOW_IN);
    }

    dc.SetPen(*wxTRANSPARENT_PEN);
    dc.SetBrush(wxBrush(col1, wxSOLID));
    dc.DrawRectangle(rect);
    rect.Deflate(1);
    dc.SetBrush(wxBrush(col2, wxSOLID));
    dc.DrawRectangle(rect);
}

void wxGTKRenderer::DrawUncheckBitmap(wxDC& dc,
                                      const wxRect& rectTotal,
                                      bool isPressed)
{
    wxRect rect = rectTotal;
    DrawAntiRaisedBorder(dc, &rect);

    wxColour col = wxSCHEME_COLOUR(m_scheme, SHADOW_IN);
    dc.SetPen(wxPen(col, 0, wxSOLID));
    dc.DrawPoint(rect.GetRight() - 1, rect.GetBottom() - 1);

    if ( isPressed )
        col = wxSCHEME_COLOUR(m_scheme, CONTROL_PRESSED);
    //else: it is SHADOW_IN, leave as is

    dc.SetPen(*wxTRANSPARENT_PEN);
    dc.SetBrush(wxBrush(col, wxSOLID));
    dc.DrawRectangle(rect);
}

void wxGTKRenderer::DrawCheckBitmap(wxDC& dc, const wxRect& rectTotal)
{
    wxRect rect = rectTotal;
    DrawAntiShadedRect(dc, &rect, m_penDarkGrey, m_penHighlight);
    DrawShadedRect(dc, &rect, m_penBlack, m_penLightGrey);

    dc.SetPen(*wxTRANSPARENT_PEN);
    dc.SetBrush(wxBrush(wxSCHEME_COLOUR(m_scheme, CONTROL_PRESSED), wxSOLID));
    dc.DrawRectangle(rect);
}

void wxGTKRenderer::DrawRadioBitmap(wxDC& dc,
                                    const wxRect& rect,
                                    int flags)
{
    wxCoord x = rect.x,
            y = rect.y,
            xRight = rect.GetRight(),
            yBottom = rect.GetBottom();

    wxCoord yMid = (y + yBottom) / 2;

    // this looks ugly when the background colour of the control is not the
    // same ours - radiobox is not transparent as it should be
#if 0
    // first fill the middle: as FloodFill() is not implemented on all
    // platforms, this is the only thing to do
    wxColour colBg = flags & wxCONTROL_CURRENT
                        ? wxSCHEME_COLOUR(m_scheme, CONTROL_CURRENT)
                        : wxSCHEME_COLOUR(m_scheme, SHADOW_IN);
    dc.SetBrush(wxBrush(colBg, wxSOLID));
    dc.SetPen(*wxTRANSPARENT_PEN);
    dc.DrawRectangle(rect);
#endif // 0

    // then draw the upper half
    dc.SetPen(flags & wxCONTROL_CHECKED ? m_penDarkGrey : m_penHighlight);
    DrawUpZag(dc, x, xRight, yMid, y);
    DrawUpZag(dc, x + 1, xRight - 1, yMid, y + 1);

    bool drawIt = true;
    if ( flags & wxCONTROL_CHECKED )
        dc.SetPen(m_penBlack);
    else if ( flags & wxCONTROL_PRESSED )
        dc.SetPen(wxPen(wxSCHEME_COLOUR(m_scheme, CONTROL_PRESSED), 0, wxSOLID));
    else // unchecked and unpressed
        drawIt = false;

    if ( drawIt )
        DrawUpZag(dc, x + 2, xRight - 2, yMid, y + 2);

    // and then the lower one
    dc.SetPen(flags & wxCONTROL_CHECKED ? m_penHighlight : m_penBlack);
    DrawDownZag(dc, x, xRight, yMid, yBottom);
    if ( !(flags & wxCONTROL_CHECKED) )
        dc.SetPen(m_penDarkGrey);
    DrawDownZag(dc, x + 1, xRight - 1, yMid, yBottom - 1);

    if ( !(flags & wxCONTROL_CHECKED) )
        drawIt = true; // with the same pen
    else if ( flags & wxCONTROL_PRESSED )
    {
        dc.SetPen(wxPen(wxSCHEME_COLOUR(m_scheme, CONTROL_PRESSED), 0, wxSOLID));
        drawIt = true;
    }
    else // checked and unpressed
        drawIt = false;

    if ( drawIt )
        DrawDownZag(dc, x + 2, xRight - 2, yMid, yBottom - 2);
}

void wxGTKRenderer::DrawUpZag(wxDC& dc,
                              wxCoord x1,
                              wxCoord x2,
                              wxCoord y1,
                              wxCoord y2)
{
    wxCoord xMid = (x1 + x2) / 2;
    dc.DrawLine(x1, y1, xMid, y2);
    dc.DrawLine(xMid, y2, x2 + 1, y1 + 1);
}

void wxGTKRenderer::DrawDownZag(wxDC& dc,
                                wxCoord x1,
                                wxCoord x2,
                                wxCoord y1,
                                wxCoord y2)