void WPdfImage::init()
{
HPDF_Page_GSave(page_); // for Wt -> HPDF
HPDF_Page_Concat(page_, 1, 0, 0, -1, 0, height_.toPixels());
HPDF_Page_Concat(page_, 1, 0, 0, 1, x_, y_);
HPDF_Page_GSave(page_); // for painter->combinedTransform()
}
JNIEXPORT void JNICALL Java_com_draekko_libharu_PdfPage_concatPage
(JNIEnv *env, jobject obj, jfloat a, jfloat b, jfloat c, jfloat d, jfloat x, jfloat y) {
haru_setup_error_handler(env, __func__);
HPDF_Page page = get_HPDF_Page(env, obj);
HPDF_Page_Concat(page, a, b, c, d, x, y);
haru_clear_error_handler();
}
/*
* Class: org_libharu_PdfPage
* Method: concat
* Signature: (FFFFFF)V
*/
JNIEXPORT void JNICALL
Java_org_libharu_PdfPage_concat(JNIEnv *env, jobject obj, jfloat a, jfloat b, jfloat c, jfloat d,
jfloat x, jfloat y) {
jint page;
/* Get mHPDFPagePointer */
page = (*env)->GetIntField(env, obj, mHPDFPagePointer);
HPDF_Page_Concat((HPDF_Page) page, (HPDF_REAL) a, (HPDF_REAL) b, (HPDF_REAL) c, (HPDF_REAL) d,
(HPDF_REAL) x, (HPDF_REAL) y);
}
void WPdfImage::drawImage(const WRectF& rect, const std::string& imgUrl,
int imgWidth, int imgHeight,
const WRectF& srect)
{
HPDF_Image img = 0;
if (Uri::isDataUri(imgUrl)) {
Uri::Uri uri = Uri::parseDataUri(imgUrl);
if ("image/png" == uri.mimeType)
img = HPDF_LoadPngImageFromMem(pdf_,
(HPDF_BYTE*)uri.data.c_str(),
uri.data.size());
else if ("image/jpeg" == uri.mimeType)
img = HPDF_LoadJpegImageFromMem(pdf_,
(HPDF_BYTE*)uri.data.c_str(),
uri.data.size());
} else {
std::string mimeType = Image::identifyImageFileMimeType(imgUrl);
if ("image/png" == mimeType)
img = HPDF_LoadPngImageFromFile2(pdf_, imgUrl.c_str());
else if ("image/jpeg" == mimeType)
img = HPDF_LoadJpegImageFromFile(pdf_, imgUrl.c_str());
}
if (!img)
throw WException("WPdfImage::drawImage(): cannot load image: " + imgUrl);
double x = rect.x();
double y = rect.y();
double width = rect.width();
double height = rect.height();
HPDF_Page_GSave(page_);
if (srect.x() != 0
|| srect.y() != 0
|| srect.width() != imgWidth
|| srect.height() != imgHeight) {
double scaleX = width / imgWidth;
double scaleY = height / imgHeight;
x -= srect.x() * scaleX;
y -= srect.y() * scaleY;
width *= scaleX;
height *= scaleY;
HPDF_Page_Rectangle(page_, rect.x(), rect.y(), rect.width(), rect.height());
HPDF_Page_Clip(page_);
}
HPDF_Page_Concat(page_, 1, 0, 0, -1, x, y + height); // revert upside-down
HPDF_Page_DrawImage(page_, img, 0, 0, width, height);
HPDF_Page_GRestore(page_);
}
void WPdfRenderer::endPage(WPaintDevice *device)
{
delete painter_;
painter_ = 0;
delete device;
#ifndef WT_TARGET_JAVA
HPDF_Page_Concat (page_, dpi_/72.0f, 0, 0, dpi_/72.0f, 0, 0);
#endif
}
void WPdfImage::drawArc(const WRectF& rect, double startAngle, double spanAngle)
{
HPDF_Page_GSave(page_);
HPDF_Page_Concat(page_, 1, 0, 0, rect.height() / rect.width(),
rect.center().x(), rect.center().y());
double start = startAngle;
double end = start + spanAngle;
if (end < start)
std::swap(start, end);
HPDF_Page_Arc(page_, 0, 0, rect.width()/1, start + 90, end + 90);
paintPath();
HPDF_Page_GRestore(page_);
}
WPaintDevice *WPdfRenderer::startPage(int page)
{
if (page > 0)
page_ = createPage(page);
#ifndef WT_TARGET_JAVA
HPDF_Page_Concat (page_, 72.0f/dpi_, 0, 0, 72.0f/dpi_, 0, 0);
#endif
WPdfImage *device = new WPdfImage(pdf_, page_, 0, 0,
pageWidth(page), pageHeight(page));
#ifdef WT_TARGET_JAVA
WTransform deviceTransform;
deviceTransform.scale(72.0f/dpi_, 72.0f/dpi_);
device->setDeviceTransform(deviceTransform);
#endif //WT_TARGET_JAVA
for (unsigned i = 0; i < fontCollections_.size(); ++i)
device->addFontCollection(fontCollections_[i].directory,
fontCollections_[i].recursive);
return device;
}
bool pdf_next_page(void)
{
#ifdef PDF_DEBUG
NSLOG(netsurf, INFO, "pdf_next_page begins");
#endif
clip_update_needed = false;
if (pdf_page != NULL) {
apply_clip_and_mode(false, NS_TRANSPARENT, NS_TRANSPARENT, 0.,
DashPattern_eNone);
pdfw_gs_restore(pdf_page);
}
#ifdef PDF_DEBUG_DUMPGRID
if (pdf_page != NULL) {
pdf_plot_grid(10, 10, 0xCCCCCC);
pdf_plot_grid(100, 100, 0xCCCCFF);
}
#endif
pdf_page = HPDF_AddPage(pdf_doc);
if (pdf_page == NULL)
return false;
HPDF_Page_SetWidth (pdf_page, settings->page_width);
HPDF_Page_SetHeight(pdf_page, settings->page_height);
HPDF_Page_Concat(pdf_page, 1, 0, 0, 1,
FIXTOFLT(settings->margins[MARGINLEFT]), 0);
pdfw_gs_save(pdf_page);
#ifdef PDF_DEBUG
NSLOG(netsurf, INFO, "%f %f", page_width, page_height);
#endif
return true;
}
void WPdfImage::drawText(const WRectF& rect,
WFlags<AlignmentFlag> flags,
TextFlag textFlag,
const WString& text,
const WPointF *clipPoint)
{
// FIXME: textFlag
if (clipPoint && painter() && !painter()->clipPath().isEmpty()) {
if (!painter()->clipPathTransform().map(painter()->clipPath())
.isPointInPath(painter()->worldTransform().map(*clipPoint)))
return;
}
if (trueTypeFont_ && !trueTypeFonts_->busy())
trueTypeFonts_->drawText(painter()->font(), rect, flags, text);
else {
HPDF_REAL left, top, right, bottom;
HPDF_TextAlignment alignment = HPDF_TALIGN_LEFT;
AlignmentFlag horizontalAlign = flags & AlignHorizontalMask;
AlignmentFlag verticalAlign = flags & AlignVerticalMask;
switch (horizontalAlign) {
default:
// should never happen
case AlignmentFlag::Left:
left = rect.left();
right = left + 10000;
alignment = HPDF_TALIGN_LEFT;
break;
case AlignmentFlag::Right:
right = rect.right();
left = right - 10000;
alignment = HPDF_TALIGN_RIGHT;
break;
case AlignmentFlag::Center:
{
float center = rect.center().x();
left = center - 5000;
right = center + 5000;
alignment = HPDF_TALIGN_CENTER;
break;
}
}
switch (verticalAlign) {
default:
// fall-through ; should never happen
case AlignmentFlag::Top:
top = rect.top(); break;
case AlignmentFlag::Middle:
// FIXME: use font metrics to center middle of ascent !
top = rect.center().y() - 0.60 * fontSize_; break;
case AlignmentFlag::Bottom:
top = rect.bottom() - fontSize_; break;
}
bottom = top + fontSize_;
if (trueTypeFonts_->busy())
setChanged(PainterChangeFlag::Font);
HPDF_Page_GSave(page_);
// Undo the global inversion
HPDF_Page_Concat(page_, 1, 0, 0, -1, 0, bottom);
HPDF_Page_BeginText(page_);
// Need to fill text using pen color
const WColor& penColor = painter()->pen().color();
HPDF_Page_SetRGBFill(page_,
penColor.red() / 255.,
penColor.green() / 255.,
penColor.blue() / 255.);
std::string s = trueTypeFont_ ? text.toUTF8() : text.narrow();
HPDF_Page_TextRect(page_, left, fontSize_, right, 0, s.c_str(),
alignment, nullptr);
HPDF_Page_EndText(page_);
HPDF_Page_GRestore(page_);
}
}
void WPdfImage::drawImage(const WRectF& rect, const std::string& imgUrl,
int imgWidth, int imgHeight,
const WRectF& srect)
{
HPDF_Image img = nullptr;
if (DataUri::isDataUri(imgUrl)) {
#define HAVE_LOAD_FROM_MEM HPDF_MAJOR_VERSION > 2 || (HPDF_MAJOR_VERSION == 2 && (HPDF_MINOR_VERSION >= 2))
#if HAVE_LOAD_FROM_MEM
DataUri uri(imgUrl);
if ("image/png" == uri.mimeType)
img = HPDF_LoadPngImageFromMem(pdf_,
(HPDF_BYTE*)&uri.data[0],
uri.data.size());
else if ("image/jpeg" == uri.mimeType)
img = HPDF_LoadJpegImageFromMem(pdf_,
(HPDF_BYTE*)&uri.data[0],
uri.data.size());
#else
LOG_ERROR("drawImage: data URI support requires libharu 2.2.0 or later");
#endif
} else {
std::string mimeType = ImageUtils::identifyMimeType(imgUrl);
if ("image/png" == mimeType)
img = HPDF_LoadPngImageFromFile2(pdf_, imgUrl.c_str());
else if ("image/jpeg" == mimeType)
img = HPDF_LoadJpegImageFromFile(pdf_, imgUrl.c_str());
}
if (!img)
throw WException("WPdfImage::drawImage(): cannot load image: " + imgUrl);
double x = rect.x();
double y = rect.y();
double width = rect.width();
double height = rect.height();
HPDF_Page_GSave(page_);
if (srect.x() != 0
|| srect.y() != 0
|| srect.width() != imgWidth
|| srect.height() != imgHeight) {
double scaleX = width / imgWidth;
double scaleY = height / imgHeight;
x -= srect.x() * scaleX;
y -= srect.y() * scaleY;
width *= scaleX;
height *= scaleY;
HPDF_Page_Rectangle(page_, rect.x(), rect.y(), rect.width(), rect.height());
HPDF_Page_Clip(page_);
}
HPDF_Page_Concat(page_, 1, 0, 0, -1, x, y + height); // revert upside-down
HPDF_Page_DrawImage(page_, img, 0, 0, width, height);
HPDF_Page_GRestore(page_);
}
void WPdfImage::applyTransform(const WTransform& t)
{
HPDF_Page_Concat(page_, t.m11(), t.m12(), t.m21(),
t.m22(), t.dx(), t.dy());
}
void WPdfImage::drawText(const WRectF& rect,
WFlags<AlignmentFlag> flags,
TextFlag textFlag,
const WString& text)
{
// FIXME: textFlag
if (trueTypeFont_ && !trueTypeFonts_->busy())
trueTypeFonts_->drawText(painter()->font(), rect, flags, text);
else {
HPDF_REAL left, top, right, bottom;
HPDF_TextAlignment alignment;
AlignmentFlag horizontalAlign = flags & AlignHorizontalMask;
AlignmentFlag verticalAlign = flags & AlignVerticalMask;
switch (horizontalAlign) {
case AlignLeft:
left = rect.left();
right = left + 1000;
alignment = HPDF_TALIGN_LEFT;
break;
case AlignRight:
right = rect.right();
left = right - 1000;
alignment = HPDF_TALIGN_RIGHT;
break;
case AlignCenter:
{
float center = rect.center().x();
left = center - 500;
right = center + 500;
alignment = HPDF_TALIGN_CENTER;
break;
}
default:
break;
}
switch (verticalAlign) {
case AlignTop:
top = rect.top(); break;
case AlignMiddle:
// FIXME: use font metrics to center middle of ascent !
top = rect.center().y() - 0.60 * fontSize_; break;
case AlignBottom:
top = rect.bottom() - fontSize_; break;
default:
break;
}
bottom = top + fontSize_;
if (trueTypeFonts_->busy())
setChanged(Font);
HPDF_Page_GSave(page_);
// Undo the global inversion
HPDF_Page_Concat(page_, 1, 0, 0, -1, 0, bottom);
HPDF_Page_BeginText(page_);
// Need to fill text using pen color
const WColor& penColor = painter()->pen().color();
HPDF_Page_SetRGBFill(page_,
penColor.red() / 255.,
penColor.green() / 255.,
penColor.blue() / 255.);
std::string s = trueTypeFont_ ? text.toUTF8() : text.narrow();
HPDF_Page_TextRect(page_, left, fontSize_, right, 0, s.c_str(),
alignment, 0);
HPDF_Page_EndText(page_);
HPDF_Page_GRestore(page_);
}
}