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From 1448cc11b9be67d2d1fcd3f2f833cc6f79ad8d42 Mon Sep 17 00:00:00 2001
Date: Tue, 3 Jul 2018 13:52:33 +0000
Subject: [PATCH] Add FPDFText_GetTextRenderMode() API
This allows deciding if FPDFPageObj_GetFillColor() or
FPDFPageObj_GetStrokeColor() should be used to get the effective color
of a text object.
Change-Id: Ic6e99a9eb8512b164756da8b5fcd8cd7771271ae
Reviewed-on: https://pdfium-review.googlesource.com/36750
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
---
fpdfsdk/fpdf_edit_embeddertest.cpp | 17 ++++++++
fpdfsdk/fpdf_edittext.cpp | 37 +++++++++++++++++
fpdfsdk/fpdf_view_c_api_test.c | 1 +
public/fpdf_edit.h | 17 ++++++++
testing/resources/text_render_mode.pdf | 75 ++++++++++++++++++++++++++++++++++
5 files changed, 147 insertions(+)
create mode 100644 testing/resources/text_render_mode.pdf
diff --git a/fpdfsdk/fpdf_edittext.cpp b/fpdfsdk/fpdf_edittext.cpp
index 3115e2a16..c552d615e 100644
--- a/fpdfsdk/fpdf_edittext.cpp
+++ b/fpdfsdk/fpdf_edittext.cpp
@@ -14,6 +14,7 @@
#include "core/fpdfapi/font/cpdf_type1font.h"
#include "core/fpdfapi/page/cpdf_docpagedata.h"
#include "core/fpdfapi/page/cpdf_textobject.h"
+#include "core/fpdfapi/page/cpdf_textstate.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_document.h"
@@ -27,6 +28,31 @@
#include "fpdfsdk/cpdfsdk_helpers.h"
#include "public/fpdf_edit.h"
+// These checks are here because core/ and public/ cannot depend on each other.
+static_assert(static_cast<int>(TextRenderingMode::MODE_FILL) ==
+ FPDF_TEXTRENDERMODE_FILL,
+ "TextRenderingMode::MODE_FILL value mismatch");
+static_assert(static_cast<int>(TextRenderingMode::MODE_STROKE) ==
+ FPDF_TEXTRENDERMODE_STROKE,
+ "TextRenderingMode::MODE_STROKE value mismatch");
+static_assert(static_cast<int>(TextRenderingMode::MODE_FILL_STROKE) ==
+ FPDF_TEXTRENDERMODE_FILL_STROKE,
+ "TextRenderingMode::MODE_FILL_STROKE value mismatch");
+static_assert(static_cast<int>(TextRenderingMode::MODE_INVISIBLE) ==
+ FPDF_TEXTRENDERMODE_INVISIBLE,
+ "TextRenderingMode::MODE_INVISIBLE value mismatch");
+static_assert(static_cast<int>(TextRenderingMode::MODE_FILL_CLIP) ==
+ FPDF_TEXTRENDERMODE_FILL_CLIP,
+ "TextRenderingMode::MODE_FILL_CLIP value mismatch");
+static_assert(static_cast<int>(TextRenderingMode::MODE_STROKE_CLIP) ==
+ FPDF_TEXTRENDERMODE_STROKE_CLIP,
+ "TextRenderingMode::MODE_STROKE_CLIP value mismatch");
+static_assert(static_cast<int>(TextRenderingMode::MODE_FILL_STROKE_CLIP) ==
+ FPDF_TEXTRENDERMODE_FILL_STROKE_CLIP,
+ "TextRenderingMode::MODE_FILL_STROKE_CLIP value mismatch");
+static_assert(static_cast<int>(TextRenderingMode::MODE_CLIP) ==
+ FPDF_TEXTRENDERMODE_CLIP,
+ "TextRenderingMode::MODE_CLIP value mismatch");
namespace {
CPDF_Dictionary* LoadFontDesc(CPDF_Document* pDoc,
@@ -545,3 +571,14 @@ FPDFPageObj_CreateTextObj(FPDF_DOCUMENT document,
pTextObj->DefaultStates();
return FPDFPageObjectFromCPDFPageObject(pTextObj.release());
}
+
+FPDF_EXPORT int FPDF_CALLCONV FPDFText_GetTextRenderMode(FPDF_PAGEOBJECT text) {
+ if (!text)
+ return -1;
+
+ CPDF_TextObject* pTextObj = CPDFTextObjectFromFPDFPageObject(text);
+ if (!pTextObj)
+ return -1;
+
+ return static_cast<int>(pTextObj->m_TextState.GetTextMode());
+}
diff --git a/public/fpdf_edit.h b/public/fpdf_edit.h
index 6e613bca0..6490c18c6 100644
--- a/public/fpdf_edit.h
+++ b/public/fpdf_edit.h
@@ -70,6 +70,15 @@
#define FPDF_PRINTMODE_POSTSCRIPT2_PASSTHROUGH 4
#define FPDF_PRINTMODE_POSTSCRIPT3_PASSTHROUGH 5
+#define FPDF_TEXTRENDERMODE_FILL 0
+#define FPDF_TEXTRENDERMODE_STROKE 1
+#define FPDF_TEXTRENDERMODE_FILL_STROKE 2
+#define FPDF_TEXTRENDERMODE_INVISIBLE 3
+#define FPDF_TEXTRENDERMODE_FILL_CLIP 4
+#define FPDF_TEXTRENDERMODE_STROKE_CLIP 5
+#define FPDF_TEXTRENDERMODE_FILL_STROKE_CLIP 6
+#define FPDF_TEXTRENDERMODE_CLIP 7
+
typedef struct FPDF_IMAGEOBJ_METADATA {
// The image width in pixels.
unsigned int width;
@@ -1116,6 +1125,14 @@ FPDFPageObj_CreateTextObj(FPDF_DOCUMENT document,
FPDF_FONT font,
float font_size);
+// Experimental API.
+// Get the text rendering mode of a text object.
+//
+// text - the handle to the text object.
+//
+// Returns one of the FPDF_TEXTRENDERMODE_* flags on success, -1 on error.
+FPDF_EXPORT int FPDF_CALLCONV FPDFText_GetTextRenderMode(FPDF_PAGEOBJECT text);
+
#ifdef __cplusplus
} // extern "C"
#endif // __cplusplus
--
2.16.4
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