bool ImagesEngine::RenderPage(HDC hDC, RectI screenRect, int pageNo, float zoom, int rotation, RectD *pageRect, RenderTarget target, AbortCookie **cookie_out)
{
Bitmap *bmp = LoadImage(pageNo);
if (!bmp)
return false;
RectD pageRc = pageRect ? *pageRect : PageMediabox(pageNo);
RectI screen = Transform(pageRc, pageNo, zoom, rotation).Round();
Graphics g(hDC);
g.SetCompositingQuality(CompositingQualityHighQuality);
g.SetSmoothingMode(SmoothingModeAntiAlias);
g.SetPageUnit(UnitPixel);
Color white(0xFF, 0xFF, 0xFF);
Rect screenR(screenRect.ToGdipRect());
g.SetClip(screenR);
g.FillRectangle(&SolidBrush(white), screenR);
Matrix m;
GetTransform(m, pageNo, zoom, rotation);
m.Translate((REAL)(screenRect.x - screen.x), (REAL)(screenRect.y - screen.y), MatrixOrderAppend);
g.SetTransform(&m);
RectI pageRcI = PageMediabox(pageNo).Round();
ImageAttributes imgAttrs;
imgAttrs.SetWrapMode(WrapModeTileFlipXY);
Status ok = g.DrawImage(bmp, pageRcI.ToGdipRect(), 0, 0, pageRcI.dx, pageRcI.dy, UnitPixel, &imgAttrs);
return ok == Ok;
}
static void DrawFrame2(Graphics &g, RectI r)
{
g.SetCompositingQuality(CompositingQualityHighQuality);
g.SetSmoothingMode(SmoothingModeAntiAlias);
g.SetPageUnit(UnitPixel);
Font f(L"Impact", 40, FontStyleRegular);
CalcLettersLayout(g, &f, r.dx);
SolidBrush bgBrush(Color(0xff, 0xf2, 0));
Rect r2(r.ToGdipRect());
r2.Inflate(1, 1);
g.FillRectangle(&bgBrush, r2);
Font f2(L"Impact", 16, FontStyleRegular);
DrawSumatraLetters(g, &f, &f2, 18.f);
if (gShowOptions)
return;
REAL msgY = (REAL)(r.dy / 2);
if (gMsg)
msgY += DrawMessage(g, gMsg, msgY, (REAL)r.dx, gMsgColor) + 5;
if (gMsgError)
DrawMessage(g, gMsgError, msgY, (REAL)r.dx, COLOR_MSG_FAILED);
}
void PaintTransparentRectangles(HDC hdc, RectI screenRc, Vec<RectI>& rects, COLORREF selectionColor, BYTE alpha,
int margin) {
using namespace Gdiplus;
// create path from rectangles
GraphicsPath path(FillModeWinding);
screenRc.Inflate(margin, margin);
for (size_t i = 0; i < rects.size(); i++) {
RectI rc = rects.at(i).Intersect(screenRc);
if (!rc.IsEmpty())
path.AddRectangle(rc.ToGdipRect());
}
// fill path (and draw optional outline margin)
Graphics gs(hdc);
Color c(alpha, GetRValueSafe(selectionColor), GetGValueSafe(selectionColor), GetBValueSafe(selectionColor));
SolidBrush tmpBrush(c);
gs.FillPath(&tmpBrush, &path);
if (margin) {
path.Outline(nullptr, 0.2f);
Pen tmpPen(Color(alpha, 0, 0, 0), (REAL)margin);
gs.DrawPath(&tmpPen, &path);
}
}
