//TODO: Double check/ensure this function is only called via the gui thread..
SIZE ProjectTreeItem::GetPreferredSize()
{
SIZE sz = defaultSize;
if(!m_size.cx)
{
m_size.cy = defaultSize.cy;
HDC dc = GetDC(m_parentHwnd);
if(dc)
{
HGDIOBJ oldFont = SelectObject(dc, s_hFont);
SetTextAlign(dc, TA_LEFT);
loadngo::gui::NativeString title(m_pTask->GetTitle());
const TCHAR *pTitle = title;
long strLen = _tcslen(pTitle);
SCRIPT_STRING_ANALYSIS ssa;
SecureZeroMemory(&ssa, sizeof(SCRIPT_STRING_ANALYSIS));
HRESULT hr = ScriptStringAnalyse(dc, pTitle, strLen, 0, -1, SSA_GLYPHS, 0, 0, 0, 0, 0, 0, &ssa);
if(SUCCEEDED(hr))
{
sz.cx = ScriptString_pSize(ssa)->cx + 20;
ScriptStringFree(&ssa);
m_size.cx = sz.cx > defaultSize.cx? sz.cx: defaultSize.cx;
}
SelectObject(dc, oldFont);
ReleaseDC(m_parentHwnd, dc);
}
}
return m_size.cx? m_size: sz;
}
void unicodeMeasureString(char *utf8, int utf8Length, int *wPtr, int *hPtr) {
SCRIPT_STRING_ANALYSIS ssa;
HDC hdc;
CONST SIZE *pSize;
if (utf8Length == 0) return;
hdc = CreateCompatibleDC(0);
ssa = analyze(hdc, utf8, utf8Length);
if (ssa != NULL) {
pSize = ScriptString_pSize(ssa);
if (pSize != NULL) {
*wPtr = pSize->cx;
*hPtr = pSize->cy;
}
ScriptStringFree(&ssa);
}
DeleteDC(hdc);
}
void unicodeDrawString(char *utf8, int utf8Length, int *wPtr, int *hPtr, unsigned int *bitmapPtr) {
SCRIPT_STRING_ANALYSIS ssa;
HDC hdc;
BITMAPINFO bi;
HBITMAP hBitmap;
unsigned int *dibBits;
HGDIOBJ oldObj;
CONST SIZE *pSize;
int w = *wPtr;
int h = *hPtr;
unsigned int *src, *dst, *end;
*wPtr = *hPtr = 0;
if (utf8Length == 0) return;
hdc = CreateCompatibleDC(0);
ssa = analyze(hdc, utf8, utf8Length);
if (ssa == NULL) goto cleanup;
// create a device independent bitmap
bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bi.bmiHeader.biWidth = w;
bi.bmiHeader.biHeight = -h; // negative indicates top-down bitmap
bi.bmiHeader.biPlanes = 1;
bi.bmiHeader.biBitCount = 32;
bi.bmiHeader.biCompression = BI_RGB;
bi.bmiHeader.biSizeImage = 0;
bi.bmiHeader.biXPelsPerMeter = 0;
bi.bmiHeader.biYPelsPerMeter = 0;
bi.bmiHeader.biClrUsed = 0;
bi.bmiHeader.biClrImportant = 0;
hBitmap = CreateDIBSection(hdc, &bi, DIB_RGB_COLORS, &dibBits, NULL, 0);
if (hBitmap == NULL) goto cleanup;
// attached the bitmap to the context
oldObj = SelectObject(hdc, hBitmap);
if (oldObj != NULL) {
// set fg and bg colors and render the string
SetBkColor(hdc, g_bgColor);
SetTextColor(hdc, g_fgColor);
ScriptStringOut(ssa, 0, 0, 0, NULL, 0, 0, FALSE);
pSize = ScriptString_pSize(ssa);
if (pSize != NULL) {
*wPtr = pSize->cx;
*hPtr = pSize->cy;
}
// copy pixels into Squeak's bitmap
src = dibBits;
dst = (int *) bitmapPtr;
end = dst + (w * h);
if (g_bgTransparent && (g_bgRGB != 0)) {
// if g_bgTransparent was set, map g_bgRGB to 0 (transparent)
while (dst < end) {
*dst++ = (*src == g_bgRGB) ? 0 : *src;
src++;
}
} else {
while (dst < end) *dst++ = *src++;
}
SelectObject(hdc, oldObj);
}
ScriptStringFree(&ssa);
DeleteObject(hBitmap);
cleanup:
DeleteDC(hdc);
}
