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chromium / chromium / src / 5d1290581ae0d39d5c640c1f95ba298946515dbe / . / printing / pdf_metafile_skia.cc
blob: 36a42d9d135cc875e803c8f01a3c2b5b048d5e8c [file] [log] [blame]
epoger@google.com0a4392a2012-03-23 17:50:19[diff] [blame]1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "printing/pdf_metafile_skia.h"
6
brettw@chromium.org14c1c232013-06-11 17:52:44[diff] [blame]7#include "base/containers/hash_tables.h"
thestig22dfc4012014-09-05 08:29:44[diff] [blame]8#include "base/files/file_util.h"
vandebo@chromium.org67e16b392011-05-30 20:58:09[diff] [blame]9#include "base/metrics/histogram.h"
jschuh@chromium.orgcb154062014-01-17 03:32:40[diff] [blame]10#include "base/numerics/safe_conversions.h"
brettw@chromium.org2025d002012-11-14 20:54:35[diff] [blame]11#include "base/posix/eintr_wrapper.h"
enne@chromium.org584abe72013-05-18 09:40:26[diff] [blame]12#include "skia/ext/refptr.h"
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]13#include "skia/ext/vector_platform_device_skia.h"
reed@google.come195fbf52011-06-27 16:51:20[diff] [blame]14#include "third_party/skia/include/core/SkData.h"
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]15#include "third_party/skia/include/core/SkRefCnt.h"
vandebo@chromium.orga34f0122011-04-12 17:36:39[diff] [blame]16#include "third_party/skia/include/core/SkScalar.h"
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]17#include "third_party/skia/include/core/SkStream.h"
vandebo@chromium.org67e16b392011-05-30 20:58:09[diff] [blame]18#include "third_party/skia/include/core/SkTypeface.h"
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]19#include "third_party/skia/include/pdf/SkPDFDevice.h"
20#include "third_party/skia/include/pdf/SkPDFDocument.h"
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]21#include "ui/gfx/point.h"
22#include "ui/gfx/rect.h"
23#include "ui/gfx/size.h"
vandebo@chromium.org67e16b392011-05-30 20:58:09[diff] [blame]24
caryclark@chromium.orgb8d85bc2011-06-22 13:34:57[diff] [blame]25#if defined(OS_MACOSX)
26#include "printing/pdf_metafile_cg_mac.h"
27#endif
28
rvargas@chromium.org0daaebfe2014-03-15 00:09:05[diff] [blame]29#if defined(OS_POSIX)
30#include "base/file_descriptor_posix.h"
31#endif
32
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]33namespace printing {
34
35struct PdfMetafileSkiaData {
enne@chromium.org584abe72013-05-18 09:40:26[diff] [blame]36 skia::RefPtr<SkPDFDevice> current_page_;
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]37 SkPDFDocument pdf_doc_;
38 SkDynamicMemoryWStream pdf_stream_;
caryclark@chromium.orgb8d85bc2011-06-22 13:34:57[diff] [blame]39#if defined(OS_MACOSX)
40 PdfMetafileCg pdf_cg_;
41#endif
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]42};
43
44PdfMetafileSkia::~PdfMetafileSkia() {}
45
46bool PdfMetafileSkia::Init() {
47 return true;
48}
49bool PdfMetafileSkia::InitFromData(const void* src_buffer,
50 uint32 src_buffer_size) {
51 return data_->pdf_stream_.write(src_buffer, src_buffer_size);
52}
53
robertphillips@google.com598e4f82013-08-26 18:37:29[diff] [blame]54SkBaseDevice* PdfMetafileSkia::StartPageForVectorCanvas(
kmadhusu@chromium.org534c4fb2011-08-02 16:44:20[diff] [blame]55 const gfx::Size& page_size, const gfx::Rect& content_area,
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]56 const float& scale_factor) {
kmadhusu@chromium.org534c4fb2011-08-02 16:44:20[diff] [blame]57 DCHECK(!page_outstanding_);
58 page_outstanding_ = true;
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]59
vandebo@chromium.orga34f0122011-04-12 17:36:39[diff] [blame]60 // Adjust for the margins and apply the scale factor.
61 SkMatrix transform;
ctguil@chromium.org39892b92011-04-30 02:24:44[diff] [blame]62 transform.setTranslate(SkIntToScalar(content_area.x()),
63 SkIntToScalar(content_area.y()));
vandebo@chromium.orga34f0122011-04-12 17:36:39[diff] [blame]64 transform.preScale(SkFloatToScalar(scale_factor),
65 SkFloatToScalar(scale_factor));
66
ctguil@chromium.org39892b92011-04-30 02:24:44[diff] [blame]67 SkISize pdf_page_size = SkISize::Make(page_size.width(), page_size.height());
68 SkISize pdf_content_size =
69 SkISize::Make(content_area.width(), content_area.height());
enne@chromium.org584abe72013-05-18 09:40:26[diff] [blame]70 skia::RefPtr<SkPDFDevice> pdf_device =
71 skia::AdoptRef(new skia::VectorPlatformDeviceSkia(
72 pdf_page_size, pdf_content_size, transform));
twiz@google.com8ebe83a42011-08-28 16:51:31[diff] [blame]73 data_->current_page_ = pdf_device;
74 return pdf_device.get();
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]75}
76
77bool PdfMetafileSkia::StartPage(const gfx::Size& page_size,
ctguil@chromium.org39892b92011-04-30 02:24:44[diff] [blame]78 const gfx::Rect& content_area,
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]79 const float& scale_factor) {
80 NOTREACHED();
thakis@chromium.orgabdeb5d22012-05-16 06:57:13[diff] [blame]81 return false;
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]82}
83
84bool PdfMetafileSkia::FinishPage() {
85 DCHECK(data_->current_page_.get());
86
kmadhusu@chromium.org534c4fb2011-08-02 16:44:20[diff] [blame]87 data_->pdf_doc_.appendPage(data_->current_page_.get());
88 page_outstanding_ = false;
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]89 return true;
90}
91
92bool PdfMetafileSkia::FinishDocument() {
93 // Don't do anything if we've already set the data in InitFromData.
94 if (data_->pdf_stream_.getOffset())
95 return true;
96
kmadhusu@chromium.org534c4fb2011-08-02 16:44:20[diff] [blame]97 if (page_outstanding_)
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]98 FinishPage();
vandebo@chromium.org67e16b392011-05-30 20:58:09[diff] [blame]99
enne@chromium.org584abe72013-05-18 09:40:26[diff] [blame]100 data_->current_page_.clear();
vandebo@chromium.org54ffd6f62011-06-02 17:29:05[diff] [blame]101
vandebo@chromium.org3cd37bc02013-12-09 20:52:11[diff] [blame]102 int font_counts[SkAdvancedTypefaceMetrics::kOther_Font + 2];
epoger@google.com0a4392a2012-03-23 17:50:19[diff] [blame]103 data_->pdf_doc_.getCountOfFontTypes(font_counts);
104 for (int type = 0;
vandebo@chromium.org3cd37bc02013-12-09 20:52:11[diff] [blame]105 type <= SkAdvancedTypefaceMetrics::kOther_Font + 1;
epoger@google.com0a4392a2012-03-23 17:50:19[diff] [blame]106 type++) {
107 for (int count = 0; count < font_counts[type]; count++) {
108 UMA_HISTOGRAM_ENUMERATION(
109 "PrintPreview.FontType", type,
vandebo@chromium.org3cd37bc02013-12-09 20:52:11[diff] [blame]110 SkAdvancedTypefaceMetrics::kOther_Font + 2);
vandebo@chromium.org54ffd6f62011-06-02 17:29:05[diff] [blame]111 }
vandebo@chromium.org67e16b392011-05-30 20:58:09[diff] [blame]112 }
113
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]114 return data_->pdf_doc_.emitPDF(&data_->pdf_stream_);
115}
116
117uint32 PdfMetafileSkia::GetDataSize() const {
jschuh@chromium.orgcb154062014-01-17 03:32:40[diff] [blame]118 return base::checked_cast<uint32>(data_->pdf_stream_.getOffset());
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]119}
120
121bool PdfMetafileSkia::GetData(void* dst_buffer,
122 uint32 dst_buffer_size) const {
123 if (dst_buffer_size < GetDataSize())
124 return false;
125
reed@google.come195fbf52011-06-27 16:51:20[diff] [blame]126 SkAutoDataUnref data(data_->pdf_stream_.copyToData());
reed@google.com24b86abf2012-07-12 12:32:32[diff] [blame]127 memcpy(dst_buffer, data->bytes(), dst_buffer_size);
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]128 return true;
129}
130
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]131gfx::Rect PdfMetafileSkia::GetPageBounds(unsigned int page_number) const {
132 // TODO(vandebo) add a method to get the page size for a given page to
133 // SkPDFDocument.
134 NOTIMPLEMENTED();
135 return gfx::Rect();
136}
137
138unsigned int PdfMetafileSkia::GetPageCount() const {
139 // TODO(vandebo) add a method to get the number of pages to SkPDFDocument.
140 NOTIMPLEMENTED();
141 return 0;
142}
143
144gfx::NativeDrawingContext PdfMetafileSkia::context() const {
145 NOTREACHED();
146 return NULL;
147}
148
149#if defined(OS_WIN)
150bool PdfMetafileSkia::Playback(gfx::NativeDrawingContext hdc,
151 const RECT* rect) const {
152 NOTREACHED();
153 return false;
154}
155
156bool PdfMetafileSkia::SafePlayback(gfx::NativeDrawingContext hdc) const {
157 NOTREACHED();
158 return false;
159}
160
caryclark@chromium.orgb8d85bc2011-06-22 13:34:57[diff] [blame]161#elif defined(OS_MACOSX)
162/* TODO(caryclark): The set up of PluginInstance::PrintPDFOutput may result in
163 rasterized output. Even if that flow uses PdfMetafileCg::RenderPage,
164 the drawing of the PDF into the canvas may result in a rasterized output.
165 PDFMetafileSkia::RenderPage should be not implemented as shown and instead
166 should do something like the following CL in PluginInstance::PrintPDFOutput:
167http://codereview.chromium.org/7200040/diff/1/webkit/plugins/ppapi/ppapi_plugin_instance.cc
168*/
169bool PdfMetafileSkia::RenderPage(unsigned int page_number,
170 CGContextRef context,
171 const CGRect rect,
thestig@chromium.orgb5cf844c2012-06-18 21:49:20[diff] [blame]172 const MacRenderPageParams& params) const {
caryclark@chromium.orgb8d85bc2011-06-22 13:34:57[diff] [blame]173 DCHECK_GT(data_->pdf_stream_.getOffset(), 0U);
reed@google.come195fbf52011-06-27 16:51:20[diff] [blame]174 if (data_->pdf_cg_.GetDataSize() == 0) {
175 SkAutoDataUnref data(data_->pdf_stream_.copyToData());
reed@google.com24b86abf2012-07-12 12:32:32[diff] [blame]176 data_->pdf_cg_.InitFromData(data->bytes(), data->size());
reed@google.come195fbf52011-06-27 16:51:20[diff] [blame]177 }
thestig@chromium.orgb5cf844c2012-06-18 21:49:20[diff] [blame]178 return data_->pdf_cg_.RenderPage(page_number, context, rect, params);
caryclark@chromium.orgb8d85bc2011-06-22 13:34:57[diff] [blame]179}
180#endif
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]181
avayvod@chromium.orgb25f0032013-08-19 22:26:25[diff] [blame]182#if defined(OS_CHROMEOS) || defined(OS_ANDROID)
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]183bool PdfMetafileSkia::SaveToFD(const base::FileDescriptor& fd) const {
184 DCHECK_GT(data_->pdf_stream_.getOffset(), 0U);
185
186 if (fd.fd < 0) {
187 DLOG(ERROR) << "Invalid file descriptor!";
188 return false;
189 }
vitalybuka5d1290582014-09-12 09:19:59[diff] [blame^]190 base::File file(fd.fd);
reed@google.come195fbf52011-06-27 16:51:20[diff] [blame]191 SkAutoDataUnref data(data_->pdf_stream_.copyToData());
vitalybuka5d1290582014-09-12 09:19:59[diff] [blame^]192 bool result =
193 file.WriteAtCurrentPos(reinterpret_cast<const char*>(data->data()),
194 GetDataSize()) == static_cast<int>(GetDataSize());
195 DLOG_IF(ERROR, !result) << "Failed to save file with fd " << fd.fd;
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]196
vitalybuka5d1290582014-09-12 09:19:59[diff] [blame^]197 if (!fd.auto_close)
198 file.TakePlatformFile();
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]199 return result;
200}
201#endif
202
kmadhusu@chromium.orgc797a192011-06-15 16:25:09[diff] [blame]203PdfMetafileSkia::PdfMetafileSkia()
204 : data_(new PdfMetafileSkiaData),
kmadhusu@chromium.org534c4fb2011-08-02 16:44:20[diff] [blame]205 page_outstanding_(false) {
vandebo@chromium.org19b9d3b2011-07-23 02:08:57[diff] [blame]206}
kmadhusu@chromium.org597516372011-07-01 05:10:44[diff] [blame]207
vitalybuka5d1290582014-09-12 09:19:59[diff] [blame^]208scoped_ptr<PdfMetafileSkia> PdfMetafileSkia::GetMetafileForCurrentPage() {
209 scoped_ptr<PdfMetafileSkia> metafile;
vandebo@chromium.org19b9d3b2011-07-23 02:08:57[diff] [blame]210 SkPDFDocument pdf_doc(SkPDFDocument::kDraftMode_Flags);
reed@google.comb1e544f2011-07-21 14:52:25[diff] [blame]211 if (!pdf_doc.appendPage(data_->current_page_.get()))
vitalybuka5d1290582014-09-12 09:19:59[diff] [blame^]212 return metafile.Pass();
kmadhusu@chromium.org597516372011-07-01 05:10:44[diff] [blame]213
vitalybuka5d1290582014-09-12 09:19:59[diff] [blame^]214 SkDynamicMemoryWStream pdf_stream;
kmadhusu@chromium.org597516372011-07-01 05:10:44[diff] [blame]215 if (!pdf_doc.emitPDF(&pdf_stream))
vitalybuka5d1290582014-09-12 09:19:59[diff] [blame^]216 return metafile.Pass();
kmadhusu@chromium.org597516372011-07-01 05:10:44[diff] [blame]217
vitalybuka5d1290582014-09-12 09:19:59[diff] [blame^]218 SkAutoDataUnref data_copy(pdf_stream.copyToData());
219 if (data_copy->size() == 0)
220 return scoped_ptr<PdfMetafileSkia>();
kmadhusu@chromium.org597516372011-07-01 05:10:44[diff] [blame]221
vitalybuka5d1290582014-09-12 09:19:59[diff] [blame^]222 metafile.reset(new PdfMetafileSkia);
223 if (!metafile->InitFromData(data_copy->bytes(),
224 base::checked_cast<uint32>(data_copy->size()))) {
225 metafile.reset();
226 }
227 return metafile.Pass();
kmadhusu@chromium.org597516372011-07-01 05:10:44[diff] [blame]228}
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]229
vandebo@chromium.org8f879292011-04-08 00:21:20[diff] [blame]230} // namespace printing