void wxControlRenderer::DrawProgressBar(const wxGauge *gauge)
{
// draw background
m_dc.SetBrush(m_window->GetBackgroundColour());
m_dc.SetPen(*wxTRANSPARENT_PEN);
m_dc.DrawRectangle(m_rect);
int max = gauge->GetRange();
if ( !max )
{
// nothing to draw
return;
}
// calc the filled rect
int pos = gauge->GetValue();
int left = max - pos;
wxRect rect = m_rect;
rect.Deflate(1); // FIXME this depends on the border width
wxColour col = m_window->UseFgCol() ? m_window->GetForegroundColour()
: wxTHEME_COLOUR(GAUGE);
m_dc.SetBrush(col);
if ( gauge->IsSmooth() )
{
// just draw the rectangle in one go
if ( gauge->IsVertical() )
{
// vert bars grow from bottom to top
wxCoord dy = ((rect.height - 1) * left) / max;
rect.y += dy;
rect.height -= dy;
}
else // horizontal
{
// grow from left to right
rect.width -= ((rect.width - 1) * left) / max;
}
m_dc.DrawRectangle(rect);
}
else // discrete
{
wxSize sizeStep = m_renderer->GetProgressBarStep();
int step = gauge->IsVertical() ? sizeStep.y : sizeStep.x;
// we divide by it below!
wxCHECK_RET( step, wxT("invalid wxGauge step") );
// round up to make the progress appear to start faster
int lenTotal = gauge->IsVertical() ? rect.height : rect.width;
int steps = ((lenTotal + step - 1) * pos) / (max * step);
// calc the coords of one small rect
wxCoord *px;
wxCoord dx, dy;
if ( gauge->IsVertical() )
{
// draw from bottom to top: so first set y to the bottom
rect.y += rect.height - 1;
// then adjust the height
rect.height = step;
// and then adjust y again to be what it should for the first rect
rect.y -= rect.height;
// we are going up
step = -step;
// remember that this will be the coord which will change
px = &rect.y;
dy = 1;
dx = 0;
}
else // horizontal
{
// don't leave 2 empty pixels in the beginning
rect.x--;
px = &rect.x;
rect.width = step;
dy = 0;
dx = 1;
}
for ( int n = 0; n < steps; n++ )
{
wxRect rectSegment = rect;
rectSegment.Deflate(dx, dy);
m_dc.DrawRectangle(rectSegment);
*px += step;
if ( *px < 1 )
{
// this can only happen for the last step of vertical gauge
rect.height = *px - step - 1;
*px = 1;
}
else if ( *px > lenTotal - step )
{
// this can only happen for the last step of horizontal gauge
rect.width = lenTotal - *px - 1;
}
}
}
}
wxRootWindow() : wxWindow(NULL, wxID_ANY)
{
SetMGLwindow_t(MGL_wmGetRootWindow(g_winMng));
SetBackgroundColour(wxTHEME_COLOUR(DESKTOP));
}
