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authorMiklos Vajna <vmiklos@collabora.co.uk>2018-08-14 19:15:43 +0000
committerChromium commit bot <commit-bot@chromium.org>2018-08-14 19:15:43 +0000
commit46b437333e53295869afde696ed31043c1f6c717 (patch)
tree25c8b199bd5b601d18c1c87f8e20bae9c8510c50 /public/fpdf_edit.h
parent9e4a66449a227ca2a9e62d2f83fdc35f11bb5e2d (diff)
downloadpdfium-46b437333e53295869afde696ed31043c1f6c717.tar.xz
Add FPDFFormObj_GetMatrix() API
This is similar to FPDFText_GetMatrix() (wrapping CPDF_TextObject::GetTextMatrix()) and FPDFPath_GetMatrix() (wrapping CPDF_PathObject::m_Matrix), but wraps the matrix of form objects: CPDF_FormObject::form_matrix(). Change-Id: Ic4ce7ad8050012f54de356bb936263d3e4f097ca Reviewed-on: https://pdfium-review.googlesource.com/39930 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Diffstat (limited to 'public/fpdf_edit.h')
-rw-r--r--public/fpdf_edit.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/public/fpdf_edit.h b/public/fpdf_edit.h
index 83fedba905..577ae7fac1 100644
--- a/public/fpdf_edit.h
+++ b/public/fpdf_edit.h
@@ -1313,6 +1313,32 @@ FPDFFormObj_CountObjects(FPDF_PAGEOBJECT form_object);
FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV
FPDFFormObj_GetObject(FPDF_PAGEOBJECT form_object, unsigned long index);
+// Experimental API.
+// Get the transform matrix of a form object.
+//
+// form_object - handle to a form.
+// a - pointer to out variable to receive matrix value.
+// b - pointer to out variable to receive matrix value.
+// c - pointer to out variable to receive matrix value.
+// d - pointer to out variable to receive matrix value.
+// e - pointer to out variable to receive matrix value.
+// f - pointer to out variable to receive matrix value.
+//
+// The matrix is composed as:
+// |a c e|
+// |b d f|
+// and used to scale, rotate, shear and translate the form object.
+//
+// Returns TRUE on success.
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
+FPDFFormObj_GetMatrix(FPDF_PAGEOBJECT form_object,
+ double* a,
+ double* b,
+ double* c,
+ double* d,
+ double* e,
+ double* f);
+
#ifdef __cplusplus
} // extern "C"
#endif // __cplusplus