base::LazyInstance<base::ThreadLocalPointer<struct __CFSet> >::Leaky
thread_pdf_docs = LAZY_INSTANCE_INITIALIZER;
+// Rotate a page by |num_rotations| * 90 degrees, counter-clockwise.
+void RotatePage(CGContextRef context, const CGRect rect, int num_rotations) {
+ switch (num_rotations) {
+ case 0:
+ break;
+ case 1:
+ // After rotating by 90 degrees with the axis at the origin, the page
+ // content is now "off screen". Shift it right to move it back on screen.
+ CGContextTranslateCTM(context, rect.size.width, 0);
+ // Rotates counter-clockwise by 90 degrees.
+ CGContextRotateCTM(context, M_PI_2);
+ break;
+ case 2:
+ // After rotating by 180 degrees with the axis at the origin, the page
+ // content is now "off screen". Shift it right and up to move it back on
+ // screen.
+ CGContextTranslateCTM(context, rect.size.width, rect.size.height);
+ // Rotates counter-clockwise by 90 degrees.
+ CGContextRotateCTM(context, M_PI);
+ break;
+ case 3:
+ // After rotating by 270 degrees with the axis at the origin, the page
+ // content is now "off screen". Shift it right to move it back on screen.
+ CGContextTranslateCTM(context, 0, rect.size.height);
+ // Rotates counter-clockwise by 90 degrees.
+ CGContextRotateCTM(context, -M_PI_2);
+ break;
+ default:
+ NOTREACHED();
+ break;
+ };
+}
+
} // namespace
namespace printing {
return true;
}
-SkBaseDevice* PdfMetafileCg::StartPageForVectorCanvas(
- const gfx::Size& page_size, const gfx::Rect& content_area,
- const float& scale_factor) {
- NOTIMPLEMENTED();
- return NULL;
-}
-
bool PdfMetafileCg::StartPage(const gfx::Size& page_size,
const gfx::Rect& content_area,
const float& scale_factor) {
}
CGPDFPageRef pdf_page = CGPDFDocumentGetPage(pdf_doc, page_number);
CGRect source_rect = CGPDFPageGetBoxRect(pdf_page, kCGPDFCropBox);
+ int pdf_src_rotation = CGPDFPageGetRotationAngle(pdf_page);
float scaling_factor = 1.0;
const bool source_is_landscape =
(source_rect.size.width > source_rect.size.height);
// i.e. the origin offset translation happens first.
// Origin is at bottom-left.
CGContextTranslateCTM(context, x_offset, y_offset);
+
+ int num_rotations = 0;
if (rotate) {
- // After rotating by 90 degrees with the axis at the origin, the page
- // content is now "off screen". Shift it right to move it back on screen.
- CGContextTranslateCTM(context, rect.size.width, 0);
- // Rotates counter-clockwise by 90 degrees.
- CGContextRotateCTM(context, M_PI_2);
+ if (pdf_src_rotation == 0 || pdf_src_rotation == 270) {
+ num_rotations = 1;
+ } else {
+ num_rotations = 3;
+ }
+ } else {
+ if (pdf_src_rotation == 180 || pdf_src_rotation == 270) {
+ num_rotations = 2;
+ }
}
+ RotatePage(context, rect, num_rotations);
+
CGContextScaleCTM(context, scaling_factor, scaling_factor);
CGContextTranslateCTM(context, x_origin_offset, y_origin_offset);