WTextItem WPdfImage::measureText(const WString& text, double maxWidth, bool wordWrap) { if (trueTypeFont_ && !trueTypeFonts_->busy()) return trueTypeFonts_->measureText(painter()->font(), text, maxWidth, wordWrap); else { HPDF_REAL width = 0; if (!wordWrap) maxWidth = 1E9; else maxWidth += EPSILON; if (trueTypeFonts_->busy()) setChanged(PainterChangeFlag::Font); std::string s = trueTypeFont_ ? text.toUTF8() : text.narrow(); int bytes = HPDF_Page_MeasureText(page_, s.c_str(), maxWidth, wordWrap, &width); if (trueTypeFont_) return WTextItem(WString::fromUTF8(s.substr(0, bytes)), width); else return WTextItem(text.value().substr(0, bytes), width); } }
JNIEXPORT jint JNICALL Java_com_draekko_libharu_PdfPage_measureText (JNIEnv *env, jobject obj, jstring text, jfloat width, jboolean wordwrap, jfloat real_width) { HPDF_UINT ret = -1; HPDF_REAL *rw = NULL; const char* txt = env->GetStringUTFChars(text, 0); haru_setup_error_handler(env, __func__); HPDF_Page page = get_HPDF_Page(env, obj); if (real_width > -1) { rw = &real_width; } ret = HPDF_Page_MeasureText(page, txt, width, wordwrap, rw); env->ReleaseStringUTFChars(text, txt); haru_clear_error_handler(); return ret; }
bool haru_nsfont_position_in_string(const plot_font_style_t *fstyle, const char *string, size_t length, int x, size_t *char_offset, int *actual_x) { HPDF_Doc pdf; HPDF_Page page; char *string_nt; HPDF_UINT offset; HPDF_REAL real_width; if (!haru_nsfont_init(&pdf, &page, string, &string_nt, length)) return false; if (HPDF_Page_SetWidth(page, x) != HPDF_OK || !haru_nsfont_apply_style(fstyle, pdf, page, NULL, NULL)) { free(string_nt); HPDF_Free(pdf); return false; } offset = HPDF_Page_MeasureText(page, string_nt, x, HPDF_FALSE, &real_width); if (real_width < x) *char_offset = offset; else { assert(fabs(real_width - x) < FLT_EPSILON); assert(offset > 0); *char_offset = offset - 1; } /*TODO: this is only the right edge of the character*/ *actual_x = real_width; #ifdef FONT_HARU_DEBUG LOG("Position in string: %s at x: %i; Calculated position: %i", string_nt, x, *char_offset); #endif free(string_nt); HPDF_Free(pdf); return true; }
bool haru_nsfont_split(const plot_font_style_t *fstyle, const char *string, size_t length, int x, size_t *char_offset, int *actual_x) { HPDF_Doc pdf; HPDF_Page page; char *string_nt; HPDF_REAL real_width; HPDF_UINT offset; if (!haru_nsfont_init(&pdf, &page, string, &string_nt, length)) return false; if (HPDF_Page_SetWidth(page, x) != HPDF_OK || !haru_nsfont_apply_style(fstyle, pdf, page, NULL, NULL)) { free(string_nt); HPDF_Free(pdf); return false; } offset = HPDF_Page_MeasureText(page, string_nt, x, HPDF_TRUE, &real_width); #ifdef FONT_HARU_DEBUG LOG("Splitting string: %s for width: %i ; Calculated position: %i Calculated real_width: %f", string_nt, x, *char_offset, real_width); #endif *char_offset = offset - 1; /*TODO: this is only the right edge of the character*/ *actual_x = real_width; free(string_nt); HPDF_Free(pdf); return true; }
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; }