bool QVistaHelper::drawTitleText(QPainter *painter, const QString &text, const QRect &rect, HDC hdc)
{
bool value = false;
if (vistaState() == VistaAero) {
const QRect rectDp = QRect(rect.topLeft() * QVistaHelper::m_devicePixelRatio,
rect.size() * QVistaHelper::m_devicePixelRatio);
HWND handle = QApplicationPrivate::getHWNDForWidget(QApplication::desktop());
HANDLE hTheme = pOpenThemeData(handle, L"WINDOW");
if (!hTheme) return false;
// Set up a memory DC and bitmap that we'll draw into
HDC dcMem;
HBITMAP bmp;
BITMAPINFO dib;
ZeroMemory(&dib, sizeof(dib));
dcMem = CreateCompatibleDC(hdc);
dib.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
dib.bmiHeader.biWidth = rectDp.width();
dib.bmiHeader.biHeight = -rectDp.height();
dib.bmiHeader.biPlanes = 1;
dib.bmiHeader.biBitCount = 32;
dib.bmiHeader.biCompression = BI_RGB;
bmp = CreateDIBSection(hdc, &dib, DIB_RGB_COLORS, NULL, NULL, 0);
// Set up the DC
HFONT hCaptionFont = getCaptionFont(hTheme);
HBITMAP hOldBmp = (HBITMAP)SelectObject(dcMem, (HGDIOBJ) bmp);
HFONT hOldFont = (HFONT)SelectObject(dcMem, (HGDIOBJ) hCaptionFont);
// Draw the text!
WIZ_DTTOPTS dto;
dto.dwSize = sizeof(WIZ_DTTOPTS);
const UINT uFormat = WIZ_DT_SINGLELINE|WIZ_DT_CENTER|WIZ_DT_VCENTER|WIZ_DT_NOPREFIX;
RECT rctext ={0,0, rectDp.width(), rectDp.height()};
dto.dwFlags = WIZ_DTT_COMPOSITED|WIZ_DTT_GLOWSIZE;
dto.iGlowSize = glowSize();
pDrawThemeTextEx(hTheme, dcMem, 0, 0, (LPCWSTR)text.utf16(), -1, uFormat, &rctext, &dto );
BitBlt(hdc, rectDp.left(), rectDp.top(), rectDp.width(), rectDp.height(), dcMem, 0, 0, SRCCOPY);
SelectObject(dcMem, (HGDIOBJ) hOldBmp);
SelectObject(dcMem, (HGDIOBJ) hOldFont);
DeleteObject(bmp);
DeleteObject(hCaptionFont);
DeleteDC(dcMem);
//ReleaseDC(hwnd, hdc);
} else if (vistaState() == VistaBasic) {
painter->drawText(rect, text);
}
return value;
}
void QVistaHelper::drawTitleBar(QPainter *painter)
{
HDC hdc = painter->paintEngine()->getDC();
if (vistaState() == VistaAero)
drawBlackRect(QRect(0, 0, wizard->width(),
titleBarSize() + topOffset()), hdc);
Q_ASSERT(backButton_);
const int btnTop = backButton_->mapToParent(QPoint()).y();
const int btnHeight = backButton_->size().height();
const int verticalCenter = (btnTop + btnHeight / 2) - 1;
const QString text = wizard->window()->windowTitle();
const QFont font = QApplication::font("QWorkspaceTitleBar");
const QFontMetrics fontMetrics(font);
const QRect brect = fontMetrics.boundingRect(text);
int textHeight = brect.height();
int textWidth = brect.width();
int glowOffset = 0;
if (vistaState() == VistaAero) {
textHeight += 2 * glowSize();
textWidth += 2 * glowSize();
glowOffset = glowSize();
}
drawTitleText(
painter, text,
QRect(titleOffset() - glowOffset, verticalCenter - textHeight / 2, textWidth, textHeight),
hdc);
if (!wizard->windowIcon().isNull()) {
QRect rect(leftMargin(), verticalCenter - iconSize() / 2, iconSize(), iconSize());
HICON hIcon = wizard->windowIcon().pixmap(iconSize()).toWinHICON();
DrawIconEx(hdc, rect.left(), rect.top(), hIcon, 0, 0, 0, NULL, DI_NORMAL | DI_COMPAT);
DestroyIcon(hIcon);
}
}
