void CPanelPreferences::OnEraseBackground( wxEraseEvent& event ) {
CSkinSimple* pSkinSimple = wxGetApp().GetSkinManager()->GetSimple();
wxASSERT(pSkinSimple);
wxASSERT(wxDynamicCast(pSkinSimple, CSkinSimple));
wxMemoryDC memDC;
wxCoord w, h, x, y;
// Get the desired background bitmap
wxBitmap bmp(*pSkinSimple->GetDialogBackgroundImage()->GetBitmap());
// Dialog dimensions
wxSize sz = GetClientSize();
// Create a buffered device context to reduce flicker
wxBufferedDC dc(event.GetDC(), sz, wxBUFFER_CLIENT_AREA);
// bitmap dimensions
w = bmp.GetWidth();
h = bmp.GetHeight();
#if TEST_BACKGROUND_WITH_MAGENTA_FILL
// Fill the dialog with a magenta color so people can detect when something
// is wrong
dc.SetBrush(wxBrush(wxColour(255,0,255)));
dc.SetPen(wxPen(wxColour(255,0,255)));
dc.DrawRectangle(0, 0, sz.GetWidth(), sz.GetHeight());
#else
wxColour bgColor(*pSkinSimple->GetDialogBackgroundImage()->GetBackgroundColor());
SetBackgroundColour(bgColor);
#endif
// Is the bitmap smaller than the window?
if ( (w < sz.x) || (h < sz.y) ) {
// Check to see if they need to be rescaled to fit in the window
wxImage img = bmp.ConvertToImage();
img.Rescale((int) sz.x, (int) sz.y);
// Draw our cool background (centered)
dc.DrawBitmap(wxBitmap(img), 0, 0);
} else {
// Snag the center of the bitmap and use it
// for the background image
x = wxMax(0, (w - sz.x)/2);
y = wxMax(0, (h - sz.y)/2);
// Select the desired bitmap into the memory DC so we can take
// the center chunk of it.
memDC.SelectObject(bmp);
// Draw the center chunk on the window
dc.Blit(0, 0, w, h, &memDC, x, y, wxCOPY);
// Drop the bitmap
memDC.SelectObject(wxNullBitmap);
}
}
void CPanelPreferences::OnEraseBackground( wxEraseEvent& event ) {
if (!m_backgroundBitmap) {
MakeBackgroundBitmap();
}
// Create a buffered device context to reduce flicker
wxSize sz = GetClientSize();
wxBufferedDC dc(event.GetDC(), sz, wxBUFFER_CLIENT_AREA);
#if TEST_BACKGROUND_WITH_MAGENTA_FILL
// Fill the dialog with a magenta color so people can detect when something
// is wrong
dc.SetBrush(wxBrush(wxColour(255,0,255)));
dc.SetPen(wxPen(wxColour(255,0,255)));
dc.DrawRectangle(0, 0, sz.GetWidth(), sz.GetHeight());
#else
CSkinSimple* pSkinSimple = wxGetApp().GetSkinManager()->GetSimple();
wxASSERT(pSkinSimple);
wxASSERT(wxDynamicCast(pSkinSimple, CSkinSimple));
wxColour bgColor(*pSkinSimple->GetDialogBackgroundImage()->GetBackgroundColor());
SetBackgroundColour(bgColor);
#endif
if (m_backgroundBitmap->IsOk()) {
dc.DrawBitmap(*m_backgroundBitmap, 0, 0);
}
}
void CPanelPreferences::MakeBackgroundBitmap() {
CSkinSimple* pSkinSimple = wxGetApp().GetSkinManager()->GetSimple();
wxASSERT(pSkinSimple);
wxASSERT(wxDynamicCast(pSkinSimple, CSkinSimple));
wxMemoryDC memDC;
wxCoord w, h, x, y;
// Get the desired background bitmap
wxBitmap bmp(*pSkinSimple->GetDialogBackgroundImage()->GetBitmap());
// Dialog dimensions
wxSize sz = GetClientSize();
m_backgroundBitmap = new wxBitmap(sz);
wxMemoryDC dc(*m_backgroundBitmap);
// bitmap dimensions
w = bmp.GetWidth();
h = bmp.GetHeight();
// Is the bitmap smaller than the window?
if ( (w < sz.x) || (h < sz.y) ) {
// Check to see if they need to be rescaled to fit in the window
wxImage img = bmp.ConvertToImage();
img.Rescale((int) sz.x, (int) sz.y);
// Draw our cool background (enlarged and centered)
dc.DrawBitmap(wxBitmap(img), 0, 0);
} else {
switch(pSkinSimple->GetDialogBackgroundImage()->GetHorizontalAnchor()) {
case BKGD_ANCHOR_HORIZ_LEFT:
default:
x = 0;
break;
case BKGD_ANCHOR_HORIZ_CENTER:
x = (w - sz.x) / 2;
break;
case BKGD_ANCHOR_HORIZ_RIGHT:
x = w - sz.x;
break;
}
switch(pSkinSimple->GetDialogBackgroundImage()->GetVerticalAnchor()) {
case BKGD_ANCHOR_VERT_TOP:
default:
y = 0;
break;
case BKGD_ANCHOR_VERT_CENTER:
y = (h - sz.y) /2;
break;
case BKGD_ANCHOR_VERT_BOTTOM:
y = h - sz.y;
break;
}
// Select the desired bitmap into the memory DC so we can take
// the desired chunk of it.
memDC.SelectObject(bmp);
// Draw the desired chunk on the window
dc.Blit(0, 0, sz.x, sz.y, &memDC, x, y, wxCOPY);
// Drop the bitmap
memDC.SelectObject(wxNullBitmap);
}
}