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From 53d4f0a4526ef996caf5005ae84406a9467423f2 Mon Sep 17 00:00:00 2001
Date: Wed, 1 Aug 2018 01:28:49 +0000
Subject: [PATCH] Add FPDFText_GetFontName() API
This follows the same pattern as DefaultGetFaceName(), so the client has
to call this function twice, but allocation of the string buffer happens
outside pdfium.
Change-Id: I06b7dcd00aca9b9b94799dad3f139617d7f5451e
Reviewed-on: https://pdfium-review.googlesource.com/38870
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
---
fpdfsdk/fpdf_edit_embeddertest.cpp | 28 ++++++++++++++++++++++++++++
fpdfsdk/fpdf_edittext.cpp | 22 ++++++++++++++++++++++
fpdfsdk/fpdf_view_c_api_test.c | 1 +
public/fpdf_edit.h | 18 ++++++++++++++++++
testing/resources/text_font.pdf | Bin 0 -> 10576 bytes
5 files changed, 69 insertions(+)
create mode 100644 testing/resources/text_font.pdf
diff --git a/fpdfsdk/fpdf_edittext.cpp b/fpdfsdk/fpdf_edittext.cpp
index c552d615e..6aa44b3b2 100644
--- a/fpdfsdk/fpdf_edittext.cpp
+++ b/fpdfsdk/fpdf_edittext.cpp
@@ -548,6 +548,28 @@ FPDF_EXPORT double FPDF_CALLCONV FPDFTextObj_GetFontSize(FPDF_PAGEOBJECT text) {
return pTextObj->GetFontSize();
}
+FPDF_EXPORT unsigned long FPDF_CALLCONV
+FPDFTextObj_GetFontName(FPDF_PAGEOBJECT text,
+ void* buffer,
+ unsigned long length) {
+ CPDF_TextObject* pTextObj = CPDFTextObjectFromFPDFPageObject(text);
+ if (!pTextObj)
+ return 0;
+
+ CPDF_Font* pPdfFont = pTextObj->GetFont();
+ if (!pPdfFont)
+ return 0;
+
+ CFX_Font* pFont = pPdfFont->GetFont();
+ ASSERT(pFont);
+
+ ByteString name = pFont->GetFamilyName();
+ unsigned long dwStringLen = name.GetLength() + 1;
+ if (buffer && length >= dwStringLen)
+ memcpy(buffer, name.c_str(), dwStringLen);
+ return dwStringLen;
+}
+
FPDF_EXPORT void FPDF_CALLCONV FPDFFont_Close(FPDF_FONT font) {
CPDF_Font* pFont = CPDFFontFromFPDFFont(font);
if (!pFont)
diff --git a/public/fpdf_edit.h b/public/fpdf_edit.h
index b97a7adbd..4d5aa9c48 100644
--- a/public/fpdf_edit.h
+++ b/public/fpdf_edit.h
@@ -1256,6 +1256,24 @@ FPDFPageObj_CreateTextObj(FPDF_DOCUMENT document,
// Returns one of the FPDF_TEXTRENDERMODE_* flags on success, -1 on error.
FPDF_EXPORT int FPDF_CALLCONV FPDFText_GetTextRenderMode(FPDF_PAGEOBJECT text);
+// Experimental API.
+// Get the font name of a text object.
+//
+// text - the handle to the text object.
+// buffer - the address of a buffer that receives the font name.
+// length - the size, in bytes, of |buffer|.
+//
+// Returns the number of bytes in the font name (including the trailing NUL
+// character) on success, 0 on error.
+//
+// Regardless of the platform, the |buffer| is always in UTF-8 encoding.
+// If |length| is less than the returned length, or |buffer| is NULL, |buffer|
+// will not be modified.
+FPDF_EXPORT unsigned long FPDF_CALLCONV
+FPDFTextObj_GetFontName(FPDF_PAGEOBJECT text,
+ void* buffer,
+ unsigned long length);
+
// Experimental API.
// Get number of page objects inside |form_object|.
//
--
2.16.4
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