bool AP_UnixApp::makePngPreview(const char * pszInFile, const char * pszPNGFile, UT_sint32 iWidth, UT_sint32 iHeight)
{
cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, iWidth, iHeight);
cairo_t *cr = cairo_create (surface);
GR_UnixCairoAllocInfo ai(NULL, false);
GR_CairoGraphics * pG = static_cast<GR_CairoGraphics*>(GR_UnixCairoGraphics::graphicsAllocator(ai));
pG->setCairo(cr);
pG->beginPaint(); // needed to avoid cairo reference loss
UT_Error error = UT_OK;
PD_Document * pNewDoc = new PD_Document();
error = pNewDoc->readFromFile(pszInFile,IEFT_Unknown, NULL);
if (error != UT_OK)
{
return false;
}
AP_Preview_Abi * pPrevAbi = new AP_Preview_Abi(pG,iWidth,iHeight,NULL, PREVIEW_ZOOMED,pNewDoc);
dg_DrawArgs da;
memset(&da, 0, sizeof(da));
da.pG = pG;
GR_Painter * pPaint = new GR_Painter(pG);
pPaint->clearArea(0,0,pG->tlu(iWidth),pG->tlu(iHeight));
pPrevAbi->getView()->draw(0, &da);
pG->endPaint();
cairo_destroy(cr);
DELETEP(pPaint);
cairo_surface_write_to_png(surface, pszPNGFile);
cairo_surface_destroy(surface);
DELETEP(pG);
DELETEP(pPrevAbi); // This deletes pNewDoc
return true;
}
bool AP_UnixApp::makePngPreview(const char * pszInFile, const char * pszPNGFile, UT_sint32 iWidth, UT_sint32 iHeight)
{
GdkPixmap* pPixmap = gdk_pixmap_new(NULL,iWidth,iHeight,24);
GR_UnixPixmapAllocInfo ai(pPixmap);
GR_UnixPangoPixmapGraphics * pG = (GR_UnixPangoPixmapGraphics*) GR_UnixPangoPixmapGraphics::graphicsAllocator(ai);
UT_Error error = UT_OK;
PD_Document * pNewDoc = new PD_Document();
error = pNewDoc->readFromFile(pszInFile,IEFT_Unknown, NULL);
if (error != UT_OK)
{
return false;
}
AP_Preview_Abi * pPrevAbi = new AP_Preview_Abi(pG,iWidth,iHeight,NULL, PREVIEW_ZOOMED,pNewDoc);
dg_DrawArgs da;
memset(&da, 0, sizeof(da));
da.pG = pG;
GR_Painter * pPaint = new GR_Painter(pG);
pPaint->clearArea(0,0,pG->tlu(iWidth),pG->tlu(iHeight));
pPrevAbi->getView()->draw(0, &da);
UT_Rect r;
r.left = 0;
r.top = 0;
r.width = pG->tlu(iWidth);
r.height = pG->tlu(iHeight);
GR_Image * pImage = pPaint->genImageFromRectangle(r);
DELETEP(pPaint);
static_cast<GR_UnixImage *>(pImage)->saveToPNG( pszPNGFile);
DELETEP(pImage);
DELETEP(pG);
DELETEP(pPrevAbi); // This deletes pNewDoc
return true;
}