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authorvandebo@chromium.org <vandebo@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2011-05-24 16:12:13 +0000
committervandebo@chromium.org <vandebo@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2011-05-24 16:12:13 +0000
commit220cf4d0b875b6c066e3a9bcab152f5572834d4f (patch)
treea187f00660f6c0f5a8f1c2f3a9eddd65db256d51 /chrome/renderer/print_web_view_helper_win.cc
parente2ca8cc8afff4e85bdb090e487c9b1ff70b677c8 (diff)
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Change printing of PDFs for preview on Windows to not rasterize.
Also cleaned up a few hacks. BUG=80220 TEST=Navigate to a PDF and start print preview. Review URL: http://codereview.chromium.org/7065011 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86431 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome/renderer/print_web_view_helper_win.cc')
-rw-r--r--chrome/renderer/print_web_view_helper_win.cc27
1 files changed, 21 insertions, 6 deletions
diff --git a/chrome/renderer/print_web_view_helper_win.cc b/chrome/renderer/print_web_view_helper_win.cc
index dda6b96..4151818 100644
--- a/chrome/renderer/print_web_view_helper_win.cc
+++ b/chrome/renderer/print_web_view_helper_win.cc
@@ -11,9 +11,11 @@
#include "chrome/common/print_messages.h"
#include "printing/metafile.h"
#include "printing/metafile_impl.h"
+#include "printing/metafile_skia_wrapper.h"
#include "printing/units.h"
#include "skia/ext/vector_canvas.h"
#include "skia/ext/vector_platform_device_emf_win.h"
+#include "third_party/skia/include/core/SkRefCnt.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "ui/gfx/gdi_util.h"
#include "ui/gfx/point.h"
@@ -154,18 +156,24 @@ bool PrintWebViewHelper::CreatePreviewDocument(
break;
float scale_factor = shrink;
RenderPage(print_params, &scale_factor,
- static_cast<int>(params.pages[i]), true, frame, &metafile);
+ static_cast<int>(params.pages[i]), true, frame, &metafile);
}
}
+ // Ensure that printing has finished before we start cleaning up and
+ // allocating buffers; this causes prep_frame_view to flush anything pending
+ // into the metafile. Then we can get the final size and copy it into a
+ // shared segment.
+ prep_frame_view.FinishPrinting();
+
+ if (!metafile->FinishDocument())
+ NOTREACHED();
+
// Calculate the time taken to render the requested page for preview and add
// the net time in the histogram.
UMA_HISTOGRAM_TIMES("PrintPreview.RenderTime",
base::TimeTicks::Now() - begin_time);
- if (!metafile->FinishDocument())
- NOTREACHED();
-
// Get the size of the compiled metafile.
uint32 buf_size = metafile->GetDataSize();
DCHECK_GT(buf_size, 128u);
@@ -223,9 +231,16 @@ void PrintWebViewHelper::RenderPage(
skia::PlatformDevice* device = (*metafile)->StartPageForVectorCanvas(
page_size, content_area, frame->getPrintPageShrink(page_number));
DCHECK(device);
- skia::VectorCanvas canvas(device);
+ // The printPage method may take a reference to the canvas we pass down, so it
+ // can't be a stack object.
+ SkRefPtr<skia::VectorCanvas> canvas = new skia::VectorCanvas(device);
+ canvas->unref(); // SkRefPtr and new both took a reference.
+ if (is_preview) {
+ printing::MetafileSkiaWrapper::SetMetafileOnCanvas(canvas.get(),
+ metafile->get());
+ }
- float webkit_scale_factor = frame->printPage(page_number, &canvas);
+ float webkit_scale_factor = frame->printPage(page_number, canvas.get());
if (*scale_factor <= 0 || webkit_scale_factor <= 0) {
NOTREACHED() << "Printing page " << page_number << " failed.";
} else {