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()
}
/*
* Class: org_libharu_PdfPage
* Method: gSave
* Signature: ()V
*/
JNIEXPORT void JNICALL
Java_org_libharu_PdfPage_gSave(JNIEnv *env, jobject obj) {
jint page;
/* Get mHPDFPagePointer */
page = (*env)->GetIntField(env, obj, mHPDFPagePointer);
HPDF_Page_GSave((HPDF_Page) page);
}
WPdfImage::WPdfImage(const WLength& width, const WLength& height)
: width_(width),
height_(height),
painter_(nullptr)
{
myPdf_ = true;
pdf_ = HPDF_New(error_handler, this);
if (!pdf_)
throw WException("Could not create libharu document.");
HPDF_SetCompressionMode(pdf_, HPDF_COMP_ALL);
page_ = HPDF_AddPage(pdf_);
font_ = nullptr;
x_ = y_ = 0;
HPDF_Page_SetWidth(page_, width_.toPixels());
HPDF_Page_SetHeight(page_, height_.toPixels());
HPDF_Page_GSave(page_);
trueTypeFonts_ = new FontSupport(this, FontSupport::TrueTypeOnly);
#if HPDF_VERSION_ID>=20300
HPDF_UseUTFEncodings(pdf_);
#endif
}
/**
* Increase gstate level.
* \param page PDF page where the update needs to happen.
*/
void pdfw_gs_save(HPDF_Page page)
{
if (pdfw_gs_level == PDFW_MAX_GSTATES)
abort();
pdfw_gs[pdfw_gs_level + 1] = pdfw_gs[pdfw_gs_level];
++pdfw_gs_level;
HPDF_Page_GSave(page);
}
JNIEXPORT void JNICALL Java_com_draekko_libharu_PdfPage_gSave
(JNIEnv *env, jobject obj) {
haru_setup_error_handler(env, __func__);
HPDF_Page page = get_HPDF_Page(env, obj);
HPDF_Page_GSave(page);
haru_clear_error_handler();
}
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 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_);
}
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::setChanged(WFlags<PainterChangeFlag> flags)
{
if (!flags.empty()) {
HPDF_Page_GRestore(page_);
HPDF_Page_GSave(page_);
HPDF_ExtGState gstate;
gstate = HPDF_CreateExtGState (pdf_);
currentFont_ = WFont();
if (painter()->hasClipping()) {
const WTransform& t = painter()->clipPathTransform();
if (!painter()->clipPath().isEmpty()) {
applyTransform(t);
drawPlainPath(painter()->clipPath());
HPDF_Page_Clip(page_);
HPDF_Page_EndPath(page_);
applyTransform(t.inverted());
}
}
applyTransform(painter()->combinedTransform());
const WPen& pen = painter()->pen();
if (pen.style() != PenStyle::None) {
const WColor& color = pen.color();
HPDF_Page_SetRGBStroke(page_,
color.red() / 255.,
color.green() / 255.,
color.blue() / 255.);
HPDF_ExtGState_SetAlphaStroke (gstate, color.alpha()/255.);
WLength w = painter()->normalizedPenWidth(pen.width(), false);
HPDF_Page_SetLineWidth(page_, w.toPixels());
switch (pen.capStyle()) {
case PenCapStyle::Flat:
HPDF_Page_SetLineCap(page_, HPDF_BUTT_END);
break;
case PenCapStyle::Square:
HPDF_Page_SetLineCap(page_, HPDF_PROJECTING_SCUARE_END); // scuary !
break;
case PenCapStyle::Round:
HPDF_Page_SetLineCap(page_, HPDF_ROUND_END);
break;
}
switch (pen.joinStyle()) {
case PenJoinStyle::Miter:
HPDF_Page_SetLineJoin(page_, HPDF_MITER_JOIN);
break;
case PenJoinStyle::Bevel:
HPDF_Page_SetLineJoin(page_, HPDF_BEVEL_JOIN);
break;
case PenJoinStyle::Round:
HPDF_Page_SetLineJoin(page_, HPDF_ROUND_JOIN);
break;
}
switch (pen.style()) {
case PenStyle::None:
break;
case PenStyle::SolidLine:
HPDF_Page_SetDash(page_, nullptr, 0, 0);
break;
case PenStyle::DashLine: {
const HPDF_UINT16 dash_ptn[] = { 4, 2 };
HPDF_Page_SetDash(page_, dash_ptn, 2, 0);
break;
}
case PenStyle::DotLine: {
const HPDF_UINT16 dash_ptn[] = { 1, 2 };
HPDF_Page_SetDash(page_, dash_ptn, 2, 0);
break;
}
case PenStyle::DashDotLine: {
const HPDF_UINT16 dash_ptn[] = { 4, 2, 1, 2 };
HPDF_Page_SetDash(page_, dash_ptn, 4, 0);
break;
}
case PenStyle::DashDotDotLine: {
const HPDF_UINT16 dash_ptn[] = { 4, 2, 1, 2, 1, 2 };
HPDF_Page_SetDash(page_, dash_ptn, 6, 0);
break;
}
}
}
const WBrush& brush = painter()->brush();
if (brush.style() != BrushStyle::None) {
const WColor& color = painter()->brush().color();
HPDF_Page_SetRGBFill(page_,
color.red() / 255.,
color.green() / 255.,
color.blue() / 255.);
HPDF_ExtGState_SetAlphaFill (gstate, color.alpha()/255.);
}
HPDF_Page_SetExtGState (page_, gstate);
const WFont& font = painter()->font();
if (font == currentFont_ && !trueTypeFonts_->busy())
return;
/*
* First, try a true type font.
*/
std::string ttfFont;
if (trueTypeFonts_->busy()) {
/*
* We have a resolved true type font.
*/
ttfFont = trueTypeFonts_->drawingFontPath();
} else {
FontSupport::FontMatch match = trueTypeFonts_->matchFont(font);
if (match.matched())
ttfFont = match.fileName();
}
LOG_DEBUG("font: " << ttfFont);
if (font == currentFont_ &&
!ttfFont.empty() &&
currentTtfFont_ == ttfFont)
return;
currentFont_ = font;
const char *font_name = nullptr;
font_ = nullptr;
if (!ttfFont.empty()) {
bool fontOk = false;
std::map<std::string, const char *>::const_iterator i
= ttfFonts_.find(ttfFont);
if (i != ttfFonts_.end()) {
font_name = i->second;
fontOk = true;
} else if (ttfFont.length() > 4) {
std::string suffix
= Utils::lowerCase(ttfFont.substr(ttfFont.length() - 4));
if (suffix == ".ttf") {
font_name = HPDF_LoadTTFontFromFile (pdf_, ttfFont.c_str(),
HPDF_TRUE);
} else if (suffix == ".ttc") {
/* Oops, pango didn't tell us which font to load ... */
font_name = HPDF_LoadTTFontFromFile2(pdf_, ttfFont.c_str(),
0, HPDF_TRUE);
}
if (!font_name)
HPDF_ResetError (pdf_);
else {
ttfFonts_[ttfFont] = font_name;
fontOk = true;
}
}
if (!fontOk)
LOG_ERROR("cannot read font: '" << ttfFont << "': "
"expecting a true type font (.ttf, .ttc)");
}
if (!font_ && font_name) {
font_ = HPDF_GetFont (pdf_, font_name, "UTF-8");
if (!font_)
HPDF_ResetError (pdf_);
else {
trueTypeFont_ = true;
currentTtfFont_ = ttfFont;
}
}
if (!font_) {
trueTypeFont_ = false;
currentTtfFont_.clear();
std::string name = Pdf::toBase14Font(font);
font_ = HPDF_GetFont(pdf_, name.c_str(), nullptr);
}
fontSize_ = font.sizeLength(12).toPixels();
HPDF_Page_SetFontAndSize (page_, font_, fontSize_);
}
}
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_);
}
}
int
main (int argc, char **argv)
{
HPDF_Doc pdf;
HPDF_Page page;
char fname[256];
HPDF_Font hfont;
HPDF_ExtGState gstate;
const HPDF_REAL PAGE_WIDTH = 600;
const HPDF_REAL PAGE_HEIGHT = 900;
strcpy (fname, argv[0]);
strcat (fname, ".pdf");
pdf = HPDF_New (error_handler, NULL);
if (!pdf) {
printf ("error: cannot create PdfDoc object\n");
return 1;
}
if (setjmp(env)) {
HPDF_Free (pdf);
return 1;
}
hfont = HPDF_GetFont (pdf, "Helvetica-Bold", NULL);
/* add a new page object. */
page = HPDF_AddPage (pdf);
HPDF_Page_SetFontAndSize (page, hfont, 10);
HPDF_Page_SetHeight (page, PAGE_HEIGHT);
HPDF_Page_SetWidth (page, PAGE_WIDTH);
/* normal */
HPDF_Page_GSave (page);
draw_circles (page, "normal", 40.0f, PAGE_HEIGHT - 170);
HPDF_Page_GRestore (page);
/* transparency (0.8) */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetAlphaFill (gstate, 0.8);
HPDF_ExtGState_SetAlphaStroke (gstate, 0.8);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "alpha fill = 0.8", 230.0f, PAGE_HEIGHT - 170);
HPDF_Page_GRestore (page);
/* transparency (0.4) */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetAlphaFill (gstate, 0.4);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "alpha fill = 0.4", 420.0f, PAGE_HEIGHT - 170);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_MULTIPLY */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_MULTIPLY);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_MULTIPLY", 40.0f, PAGE_HEIGHT - 340);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_SCREEN */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_SCREEN);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_SCREEN", 230.0f, PAGE_HEIGHT - 340);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_OVERLAY */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_OVERLAY);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_OVERLAY", 420.0f, PAGE_HEIGHT - 340);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_DARKEN */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_DARKEN);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_DARKEN", 40.0f, PAGE_HEIGHT - 510);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_LIGHTEN */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_LIGHTEN);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_LIGHTEN", 230.0f, PAGE_HEIGHT - 510);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_COLOR_DODGE */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_COLOR_DODGE);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_COLOR_DODGE", 420.0f, PAGE_HEIGHT - 510);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_COLOR_BUM */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_COLOR_BUM);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_COLOR_BUM", 40.0f, PAGE_HEIGHT - 680);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_HARD_LIGHT */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_HARD_LIGHT);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_HARD_LIGHT", 230.0f, PAGE_HEIGHT - 680);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_SOFT_LIGHT */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_SOFT_LIGHT);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_SOFT_LIGHT", 420.0f, PAGE_HEIGHT - 680);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_DIFFERENCE */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_DIFFERENCE);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_DIFFERENCE", 40.0f, PAGE_HEIGHT - 850);
HPDF_Page_GRestore (page);
/* blend-mode=HPDF_BM_EXCLUSHON */
HPDF_Page_GSave (page);
gstate = HPDF_CreateExtGState (pdf);
HPDF_ExtGState_SetBlendMode (gstate, HPDF_BM_EXCLUSHON);
HPDF_Page_SetExtGState (page, gstate);
draw_circles (page, "HPDF_BM_EXCLUSHON", 230.0f, PAGE_HEIGHT - 850);
HPDF_Page_GRestore (page);
/* save the document to a file */
HPDF_SaveToFile (pdf, fname);
/* clean up */
HPDF_Free (pdf);
return 0;
}
int main (int argc, char **argv)
{
const char *page_title = "Text Demo";
HPDF_Doc pdf;
HPDF_Font font;
HPDF_Page page;
char fname[256];
const char* samp_text = "abcdefgABCDEFG123!#$%&+-@?";
const char* samp_text2 = "The quick brown fox jumps over the lazy dog.";
float tw;
float fsize;
int i;
int len;
float angle1;
float angle2;
float rad1;
float rad2;
float ypos;
strcpy (fname, argv[0]);
strcat (fname, ".pdf");
pdf = HPDF_New (error_handler, NULL);
if (!pdf) {
printf ("error: cannot create PdfDoc object\n");
return 1;
}
if (setjmp(env)) {
HPDF_Free (pdf);
return 1;
}
/* set compression mode */
HPDF_SetCompressionMode (pdf, HPDF_COMP_ALL);
/* create default-font */
font = HPDF_GetFont (pdf, "Helvetica", NULL);
/* add a new page object. */
page = HPDF_AddPage (pdf);
/* draw grid to the page */
print_grid (pdf, page);
/* print the lines of the page.
HPDF_Page_SetLineWidth (page, 1);
HPDF_Page_Rectangle (page, 50, 50, HPDF_Page_GetWidth(page) - 100,
HPDF_Page_GetHeight (page) - 110);
HPDF_Page_Stroke (page);
*/
/* print the title of the page (with positioning center). */
HPDF_Page_SetFontAndSize (page, font, 24);
tw = HPDF_Page_TextWidth (page, page_title);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, (HPDF_Page_GetWidth(page) - tw) / 2,
HPDF_Page_GetHeight (page) - 50, page_title);
HPDF_Page_EndText (page);
HPDF_Page_BeginText (page);
HPDF_Page_MoveTextPos (page, 60, HPDF_Page_GetHeight(page) - 60);
/*
* font size
*/
fsize = 8;
while (fsize < 60) {
char buf[50];
int len;
/* set style and size of font. */
HPDF_Page_SetFontAndSize(page, font, fsize);
/* set the position of the text. */
HPDF_Page_MoveTextPos (page, 0, -5 - fsize);
/* measure the number of characters which included in the page. */
strcpy(buf, samp_text);
len = HPDF_Page_MeasureText (page, samp_text,
HPDF_Page_GetWidth(page) - 120, HPDF_FALSE, NULL);
/* truncate the text. */
buf[len] = 0x00;
HPDF_Page_ShowText (page, buf);
/* print the description. */
HPDF_Page_MoveTextPos (page, 0, -10);
HPDF_Page_SetFontAndSize(page, font, 8);
#ifdef __WIN32__
_snprintf(buf, 50, "Fontsize=%.0f", fsize);
#else
snprintf(buf, 50, "Fontsize=%.0f", fsize);
#endif
HPDF_Page_ShowText (page, buf);
fsize *= 1.5;
}
/*
* font color
*/
HPDF_Page_SetFontAndSize(page, font, 8);
HPDF_Page_MoveTextPos (page, 0, -30);
HPDF_Page_ShowText (page, "Font color");
HPDF_Page_SetFontAndSize (page, font, 18);
HPDF_Page_MoveTextPos (page, 0, -20);
len = strlen (samp_text);
for (i = 0; i < len; i++) {
char buf[2];
float r = (float)i / (float)len;
float g = 1 - ((float)i / (float)len);
buf[0] = samp_text[i];
buf[1] = 0x00;
HPDF_Page_SetRGBFill (page, r, g, 0.0);
HPDF_Page_ShowText (page, buf);
}
HPDF_Page_MoveTextPos (page, 0, -25);
for (i = 0; i < len; i++) {
char buf[2];
float r = (float)i / (float)len;
float b = 1 - ((float)i / (float)len);
buf[0] = samp_text[i];
buf[1] = 0x00;
HPDF_Page_SetRGBFill (page, r, 0.0, b);
HPDF_Page_ShowText (page, buf);
}
HPDF_Page_MoveTextPos (page, 0, -25);
for (i = 0; i < len; i++) {
char buf[2];
float b = (float)i / (float)len;
float g = 1 - ((float)i / (float)len);
buf[0] = samp_text[i];
buf[1] = 0x00;
HPDF_Page_SetRGBFill (page, 0.0, g, b);
HPDF_Page_ShowText (page, buf);
}
HPDF_Page_EndText (page);
ypos = 450;
/*
* Font rendering mode
*/
HPDF_Page_SetFontAndSize(page, font, 32);
HPDF_Page_SetRGBFill (page, 0.5, 0.5, 0.0);
HPDF_Page_SetLineWidth (page, 1.5);
/* PDF_FILL */
show_description (page, 60, ypos,
"RenderingMode=PDF_FILL");
HPDF_Page_SetTextRenderingMode (page, HPDF_FILL);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, 60, ypos, "ABCabc123");
HPDF_Page_EndText (page);
/* PDF_STROKE */
show_description (page, 60, ypos - 50,
"RenderingMode=PDF_STROKE");
HPDF_Page_SetTextRenderingMode (page, HPDF_STROKE);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, 60, ypos - 50, "ABCabc123");
HPDF_Page_EndText (page);
/* PDF_FILL_THEN_STROKE */
show_description (page, 60, ypos - 100,
"RenderingMode=PDF_FILL_THEN_STROKE");
HPDF_Page_SetTextRenderingMode (page, HPDF_FILL_THEN_STROKE);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, 60, ypos - 100, "ABCabc123");
HPDF_Page_EndText (page);
/* PDF_FILL_CLIPPING */
show_description (page, 60, ypos - 150,
"RenderingMode=PDF_FILL_CLIPPING");
HPDF_Page_GSave (page);
HPDF_Page_SetTextRenderingMode (page, HPDF_FILL_CLIPPING);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, 60, ypos - 150, "ABCabc123");
HPDF_Page_EndText (page);
show_stripe_pattern (page, 60, ypos - 150);
HPDF_Page_GRestore (page);
/* PDF_STROKE_CLIPPING */
show_description (page, 60, ypos - 200,
"RenderingMode=PDF_STROKE_CLIPPING");
HPDF_Page_GSave (page);
HPDF_Page_SetTextRenderingMode (page, HPDF_STROKE_CLIPPING);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, 60, ypos - 200, "ABCabc123");
HPDF_Page_EndText (page);
show_stripe_pattern (page, 60, ypos - 200);
HPDF_Page_GRestore (page);
/* PDF_FILL_STROKE_CLIPPING */
show_description (page, 60, ypos - 250,
"RenderingMode=PDF_FILL_STROKE_CLIPPING");
HPDF_Page_GSave (page);
HPDF_Page_SetTextRenderingMode (page, HPDF_FILL_STROKE_CLIPPING);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, 60, ypos - 250, "ABCabc123");
HPDF_Page_EndText (page);
show_stripe_pattern (page, 60, ypos - 250);
HPDF_Page_GRestore (page);
/* Reset text attributes */
HPDF_Page_SetTextRenderingMode (page, HPDF_FILL);
HPDF_Page_SetRGBFill (page, 0, 0, 0);
HPDF_Page_SetFontAndSize(page, font, 30);
/*
* Rotating text
*/
angle1 = 30; /* A rotation of 30 degrees. */
rad1 = angle1 / 180 * 3.141592; /* Calcurate the radian value. */
show_description (page, 320, ypos - 60, "Rotating text");
HPDF_Page_BeginText (page);
HPDF_Page_SetTextMatrix (page, cos(rad1), sin(rad1), -sin(rad1), cos(rad1),
330, ypos - 60);
HPDF_Page_ShowText (page, "ABCabc123");
HPDF_Page_EndText (page);
/*
* Skewing text.
*/
show_description (page, 320, ypos - 120, "Skewing text");
HPDF_Page_BeginText (page);
angle1 = 10;
angle2 = 20;
rad1 = angle1 / 180 * 3.141592;
rad2 = angle2 / 180 * 3.141592;
HPDF_Page_SetTextMatrix (page, 1, tan(rad1), tan(rad2), 1, 320, ypos - 120);
HPDF_Page_ShowText (page, "ABCabc123");
HPDF_Page_EndText (page);
/*
* scaling text (X direction)
*/
show_description (page, 320, ypos - 175, "Scaling text (X direction)");
HPDF_Page_BeginText (page);
HPDF_Page_SetTextMatrix (page, 1.5, 0, 0, 1, 320, ypos - 175);
HPDF_Page_ShowText (page, "ABCabc12");
HPDF_Page_EndText (page);
/*
* scaling text (Y direction)
*/
show_description (page, 320, ypos - 250, "Scaling text (Y direction)");
HPDF_Page_BeginText (page);
HPDF_Page_SetTextMatrix (page, 1, 0, 0, 2, 320, ypos - 250);
HPDF_Page_ShowText (page, "ABCabc123");
HPDF_Page_EndText (page);
/*
* char spacing, word spacing
*/
show_description (page, 60, 140, "char-spacing 0");
show_description (page, 60, 100, "char-spacing 1.5");
show_description (page, 60, 60, "char-spacing 1.5, word-spacing 2.5");
HPDF_Page_SetFontAndSize (page, font, 20);
HPDF_Page_SetRGBFill (page, 0.1, 0.3, 0.1);
/* char-spacing 0 */
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, 60, 140, samp_text2);
HPDF_Page_EndText (page);
/* char-spacing 1.5 */
HPDF_Page_SetCharSpace (page, 1.5);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, 60, 100, samp_text2);
HPDF_Page_EndText (page);
/* char-spacing 1.5, word-spacing 3.5 */
HPDF_Page_SetWordSpace (page, 2.5);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page, 60, 60, samp_text2);
HPDF_Page_EndText (page);
/* save the document to a file */
HPDF_SaveToFile (pdf, fname);
/* clean up */
HPDF_Free (pdf);
return 0;
}
