void MapPainterAgg::DrawLabel(const Projection& projection,
const MapParameter& parameter,
const LabelData& label)
{
if (dynamic_cast<const TextStyle*>(label.style.Get())!=NULL) {
const TextStyle* style=dynamic_cast<const TextStyle*>(label.style.Get());
double r=style->GetTextColor().GetR();
double g=style->GetTextColor().GetG();
double b=style->GetTextColor().GetB();
std::wstring wideText(UTF8StringToWString(label.text));
if (style->GetStyle()==TextStyle::normal) {
SetFont(projection,
parameter,
label.fontSize);
//renderer_bin->color(agg::rgba(r,g,b,a));
renderer_aa->color(agg::rgba(r,g,b,label.alpha));
DrawText(label.x,
label.y+fontEngine->ascender(),
wideText);
}
else if (style->GetStyle()==TextStyle::emphasize) {
SetOutlineFont(projection,
parameter,
label.fontSize);
//renderer_bin->color(agg::rgba(r,g,b,a));
renderer_aa->color(agg::rgba(1,1,1,label.alpha));
DrawOutlineText(label.x,
label.y+fontEngine->ascender(),
wideText,
2);
SetFont(projection,
parameter,
label.fontSize);
//renderer_bin->color(agg::rgba(r,g,b,a));
renderer_aa->color(agg::rgba(r,g,b,label.alpha));
DrawText(label.x,
label.y+fontEngine->ascender(),
wideText);
}
}
}
void ETextBox::Draw() {
if (_lpFont == NULL || _nFontSize<=0)
return;
EBox::Draw();
if (_fTextHeight > 0 && _fTextWidth >= _fMinTextWidth) {
_lpFont->setBlend(_fBlend);
if (_textColor[0] >=0) {
DrawOutlineText();
_lpFont->setColor(_textColor[0], _textColor[1], _textColor[2], _textColor[3]);
}
_lpFont->drawMultiline(_cText,_x+_marginLeft,_x+_w-_marginRight,_y+_marginUp,_nTextStyle,0,_nFontSize);
}
}
void ProcessDateTime::UpdateTexture()
{
Status stat;
RectF layoutBox;
SIZE textSize;
RectF boundingBox(0.0f, 0.0f, 32.0f, 32.0f);
UpdateCurrentText();
if (bUpdateTexture)
{
bUpdateTexture = false;
if (hFont)
{
DeleteObject(hFont);
hFont = NULL;
}
hFont = GetFont();
if (!hFont)
return;
}
StringFormat format(Gdiplus::StringFormat::GenericTypographic());
SetStringFormat(format);
HDC hdc = CreateCompatibleDC(NULL);
Font font(hdc, hFont);
Graphics graphics(hdc);
graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);
if (strCurrentText.IsValid())
{
stat = graphics.MeasureString(strCurrentText, -1, &font, PointF(0.0f, 0.0f), &format, &boundingBox);
if (stat != Ok)
Log::writeError(LOG_RTSPSERV, 1, "TextSource::UpdateTexture: Gdiplus::Graphics::MeasureString failed: %u", (int)stat);
if (bUseOutline)
{
//Note: since there's no path widening in DrawOutlineText the padding is half than what it was supposed to be.
boundingBox.Width += outlineSize;
boundingBox.Height += outlineSize;
}
}
DeleteDC(hdc);
hdc = NULL;
if (boundingBox.Height < size)
{
textSize.cy = size;
boundingBox.Height = float(size);
}
else
textSize.cy = LONG(boundingBox.Height + EPSILON);
textSize.cx = LONG(boundingBox.Width + EPSILON);
//textSize.cx &= 0xFFFFFFFE;
//textSize.cy &= 0xFFFFFFFE;
textSize.cx += textSize.cx % 2;
textSize.cy += textSize.cy % 2;
ClampVal(textSize.cx, 32, 8192);
ClampVal(textSize.cy, 32, 8192);
//----------------------------------------------------------------------
// write image
{
HDC hTempDC = CreateCompatibleDC(NULL);
BITMAPINFO bi;
zero(&bi, sizeof(bi));
void* lpBits;
BITMAPINFOHEADER &bih = bi.bmiHeader;
bih.biSize = sizeof(bih);
bih.biBitCount = 32;
bih.biWidth = textSize.cx;
bih.biHeight = textSize.cy;
bih.biPlanes = 1;
HBITMAP hBitmap = CreateDIBSection(hTempDC, &bi, DIB_RGB_COLORS, &lpBits, NULL, 0);
Bitmap bmp(textSize.cx, textSize.cy, 4 * textSize.cx, PixelFormat32bppARGB, (BYTE*)lpBits);
Graphics graphics(&bmp);
SolidBrush brush(Gdiplus::Color(GetAlphaVal(opacity) | (color & 0x00FFFFFF)));
DWORD bkColor;
bkColor = ((strCurrentText.IsValid()) ? GetAlphaVal(0) : GetAlphaVal(0));
if (textSize.cx > boundingBox.Width || textSize.cy > boundingBox.Height)
{
stat = graphics.Clear(Gdiplus::Color(0x00000000));
if (stat != Gdiplus::Ok)
Log::writeError(LOG_RTSPSERV, 1, "TextSource::UpdateTexture: Graphics::Clear failed: %u", (int)stat);
SolidBrush *bkBrush = new SolidBrush(Gdiplus::Color(bkColor));
graphics.FillRectangle(bkBrush, boundingBox);
delete bkBrush;
}
else
{
stat = graphics.Clear(Gdiplus::Color(bkColor));
if (stat != Ok)
Log::writeError(LOG_RTSPSERV, 1, "TextSource::UpdateTexture: Graphics::Clear failed: %u", (int)stat);
}
graphics.SetTextRenderingHint(Gdiplus::TextRenderingHintAntiAlias);
graphics.SetCompositingMode(Gdiplus::CompositingModeSourceOver);
graphics.SetSmoothingMode(Gdiplus::SmoothingModeAntiAlias);
if (strCurrentText.IsValid())
{
if (bUseOutline)
{
boundingBox.Offset(outlineSize / 2, outlineSize / 2);
FontFamily fontFamily;
GraphicsPath path;
font.GetFamily(&fontFamily);
path.AddString(strCurrentText, -1, &fontFamily, font.GetStyle(), font.GetSize(), boundingBox, &format);
DrawOutlineText(&graphics, font, path, format, &brush);
}
else
{
stat = graphics.DrawString(strCurrentText, -1, &font, boundingBox, &format, &brush);
if (stat != Gdiplus::Ok)
Log::writeError(LOG_RTSPSERV, 1, "TextSource::UpdateTexture: Graphics::DrawString failed: %u", (int)stat);
}
}
//----------------------------------------------------------------------
// upload texture
if (textureSize.cx != textSize.cx || textureSize.cy != textSize.cy)
{
if (texture)
{
delete texture;
texture = NULL;
}
mcpy(&textureSize, &textSize, sizeof(textureSize));
texture = CreateTexture(textSize.cx, textSize.cy, GS_BGRA, lpBits, FALSE, FALSE);
}
else if (texture)
SetImage(texture,lpBits, GS_IMAGEFORMAT_BGRA, 4 * textSize.cx);
if (!texture)
{
Log::writeError(LOG_RTSPSERV,1,"TextSource::UpdateTexture: could not create texture");
DeleteObject(hFont);
}
DeleteDC(hTempDC);
DeleteObject(hBitmap);
}
}
