Add setters/getters for BleedBox and TrimBox.

Since BleedBox and TrimBox are supported according to PDF
specification, hence added setters and getters to get the
value if exists.

Bug:894655
Change-Id: I3c2600450f07665241a4724457a7cbc4282941ed
Reviewed-on: https://pdfium-review.googlesource.com/c/43977
Commit-Queue: Shirleen Lou <xlou@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>

1 files changed, 66 insertions, 0 deletions

diff --git a/public/fpdf_transformpage.h b/public/fpdf_transformpage.h
index c1abe76979..899e5c6058 100644
--- a/public/fpdf_transformpage.h
+++ b/public/fpdf_transformpage.h
@@ -45,6 +45,36 @@ FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetCropBox(FPDF_PAGE page,
                                                    float top);
 
 /**
+ * Set "BleedBox" entry to the page dictionary.
+ *
+ * page   - Handle to a page.
+ * left   - The left of the rectangle.
+ * bottom - The bottom of the rectangle.
+ * right  - The right of the rectangle.
+ * top    - The top of the rectangle.
+ */
+FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetBleedBox(FPDF_PAGE page,
+                                                    float left,
+                                                    float bottom,
+                                                    float right,
+                                                    float top);
+
+/**
+ * Set "TrimBox" entry to the page dictionary.
+ *
+ * page   - Handle to a page.
+ * left   - The left of the rectangle.
+ * bottom - The bottom of the rectangle.
+ * right  - The right of the rectangle.
+ * top    - The top of the rectangle.
+ */
+FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetTrimBox(FPDF_PAGE page,
+                                                   float left,
+                                                   float bottom,
+                                                   float right,
+                                                   float top);
+
+/**
  * Set "ArtBox" entry to the page dictionary.
  *
  * page   - Handle to a page.
@@ -96,6 +126,42 @@ FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GetCropBox(FPDF_PAGE page,
                                                         float* top);
 
 /**
+ * Get "BleedBox" entry from the page dictionary.
+ *
+ * page   - Handle to a page.
+ * left   - Pointer to a float value receiving the left of the rectangle.
+ * bottom - Pointer to a float value receiving the bottom of the rectangle.
+ * right  - Pointer to a float value receiving the right of the rectangle.
+ * top    - Pointer to a float value receiving the top of the rectangle.
+ *
+ * On success, return true and write to the out parameters. Otherwise return
+ * false and leave the out parameters unmodified.
+ */
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GetBleedBox(FPDF_PAGE page,
+                                                         float* left,
+                                                         float* bottom,
+                                                         float* right,
+                                                         float* top);
+
+/**
+ * Get "TrimBox" entry from the page dictionary.
+ *
+ * page   - Handle to a page.
+ * left   - Pointer to a float value receiving the left of the rectangle.
+ * bottom - Pointer to a float value receiving the bottom of the rectangle.
+ * right  - Pointer to a float value receiving the right of the rectangle.
+ * top    - Pointer to a float value receiving the top of the rectangle.
+ *
+ * On success, return true and write to the out parameters. Otherwise return
+ * false and leave the out parameters unmodified.
+ */
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GetTrimBox(FPDF_PAGE page,
+                                                        float* left,
+                                                        float* bottom,
+                                                        float* right,
+                                                        float* top);
+
+/**
  * Get "ArtBox" entry from the page dictionary.
  *
  * page   - Handle to a page.