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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/renderer/printing/print_web_view_helper.h" | 5 #include "chrome/renderer/printing/print_web_view_helper.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
| 9 #include "base/metrics/histogram.h" | 9 #include "base/metrics/histogram.h" |
| 10 #include "base/process/process_handle.h" | 10 #include "base/process/process_handle.h" |
| 11 #include "base/win/scoped_gdi_object.h" | 11 #include "base/win/scoped_gdi_object.h" |
| 12 #include "base/win/scoped_hdc.h" | 12 #include "base/win/scoped_hdc.h" |
| 13 #include "base/win/scoped_select_object.h" | 13 #include "base/win/scoped_select_object.h" |
| 14 #include "chrome/common/print_messages.h" | 14 #include "chrome/common/print_messages.h" |
| 15 #include "printing/metafile.h" | 15 #include "printing/metafile.h" |
| 16 #include "printing/metafile_impl.h" | |
| 17 #include "printing/metafile_skia_wrapper.h" | 16 #include "printing/metafile_skia_wrapper.h" |
| 18 #include "printing/page_size_margins.h" | 17 #include "printing/page_size_margins.h" |
| 18 #include "printing/pdf_metafile_skia.h" |
| 19 #include "printing/units.h" | 19 #include "printing/units.h" |
| 20 #include "skia/ext/platform_device.h" | 20 #include "skia/ext/platform_device.h" |
| 21 #include "skia/ext/refptr.h" | 21 #include "skia/ext/refptr.h" |
| 22 #include "skia/ext/vector_canvas.h" | 22 #include "skia/ext/vector_canvas.h" |
| 23 #include "third_party/WebKit/public/web/WebLocalFrame.h" | 23 #include "third_party/WebKit/public/web/WebLocalFrame.h" |
| 24 #include "ui/gfx/gdi_util.h" | 24 #include "ui/gfx/gdi_util.h" |
| 25 #include "ui/gfx/point.h" | 25 #include "ui/gfx/point.h" |
| 26 #include "ui/gfx/rect.h" | 26 #include "ui/gfx/rect.h" |
| 27 #include "ui/gfx/size.h" | 27 #include "ui/gfx/size.h" |
| 28 | 28 |
| 29 namespace printing { | 29 namespace printing { |
| 30 | 30 |
| 31 using blink::WebFrame; | 31 using blink::WebFrame; |
| 32 | 32 |
| 33 void PrintWebViewHelper::PrintPageInternal( | 33 void PrintWebViewHelper::PrintPageInternal( |
| 34 const PrintMsg_PrintPage_Params& params, | 34 const PrintMsg_PrintPage_Params& params, |
| 35 const gfx::Size& canvas_size, | 35 const gfx::Size& canvas_size, |
| 36 WebFrame* frame) { | 36 WebFrame* frame) { |
| 37 // Generate a memory-based metafile. It will use the current screen's DPI. | 37 // Generate a memory-based metafile. It will use the current screen's DPI. |
| 38 // Each metafile contains a single page. | 38 // Each metafile contains a single page. |
| 39 scoped_ptr<NativeMetafile> metafile(new NativeMetafile); | 39 scoped_ptr<PdfMetafileSkia> metafile(new PdfMetafileSkia); |
| 40 metafile->Init(); | 40 metafile->Init(); |
| 41 DCHECK(metafile->context()); | 41 DCHECK(metafile->context()); |
| 42 skia::InitializeDC(metafile->context()); | 42 skia::InitializeDC(metafile->context()); |
| 43 | 43 |
| 44 int page_number = params.page_number; | 44 int page_number = params.page_number; |
| 45 | 45 |
| 46 // Calculate the dpi adjustment. | 46 // Calculate the dpi adjustment. |
| 47 // Browser will render context using desired_dpi, so we need to calculate | 47 // Browser will render context using desired_dpi, so we need to calculate |
| 48 // adjustment factor to play content on the printer DC later during the | 48 // adjustment factor to play content on the printer DC later during the |
| 49 // actual printing. | 49 // actual printing. |
| 50 double actual_shrink = static_cast<float>(params.params.desired_dpi / | 50 double actual_shrink = static_cast<float>(params.params.desired_dpi / |
| 51 params.params.dpi); | 51 params.params.dpi); |
| 52 gfx::Size page_size_in_dpi; | 52 gfx::Size page_size_in_dpi; |
| 53 gfx::Rect content_area_in_dpi; | 53 gfx::Rect content_area_in_dpi; |
| 54 | 54 |
| 55 // Render page for printing. | 55 // Render page for printing. |
| 56 RenderPage(params.params, page_number, frame, false, metafile.get(), | 56 RenderPage(params.params, page_number, frame, false, metafile.get(), |
| 57 &actual_shrink, &page_size_in_dpi, &content_area_in_dpi); | 57 &actual_shrink, &page_size_in_dpi, &content_area_in_dpi); |
| 58 | 58 |
| 59 // Close the device context to retrieve the compiled metafile. | 59 // Close the device context to retrieve the compiled metafile. |
| 60 if (!metafile->FinishDocument()) | 60 if (!metafile->FinishDocument()) |
| 61 NOTREACHED(); | 61 NOTREACHED(); |
| 62 | 62 |
| 63 if (!params.params.supports_alpha_blend && metafile->IsAlphaBlendUsed()) { | 63 if (!params.params.supports_alpha_blend && metafile->IsAlphaBlendUsed()) { |
| 64 scoped_ptr<NativeMetafile> raster_metafile( | 64 scoped_ptr<PdfMetafileSkia> raster_metafile( |
| 65 metafile->RasterizeAlphaBlend()); | 65 metafile->RasterizeAlphaBlend()); |
| 66 if (raster_metafile.get()) | 66 if (raster_metafile.get()) |
| 67 metafile.swap(raster_metafile); | 67 metafile.swap(raster_metafile); |
| 68 } | 68 } |
| 69 | 69 |
| 70 // Get the size of the compiled metafile. | 70 // Get the size of the compiled metafile. |
| 71 uint32 buf_size = metafile->GetDataSize(); | 71 uint32 buf_size = metafile->GetDataSize(); |
| 72 DCHECK_GT(buf_size, 128u); | 72 DCHECK_GT(buf_size, 128u); |
| 73 | 73 |
| 74 PrintHostMsg_DidPrintPage_Params page_params; | 74 PrintHostMsg_DidPrintPage_Params page_params; |
| (...skipping 16 matching lines...) Expand all Loading... |
| 91 bool PrintWebViewHelper::RenderPreviewPage( | 91 bool PrintWebViewHelper::RenderPreviewPage( |
| 92 int page_number, | 92 int page_number, |
| 93 const PrintMsg_Print_Params& print_params) { | 93 const PrintMsg_Print_Params& print_params) { |
| 94 // Calculate the dpi adjustment. | 94 // Calculate the dpi adjustment. |
| 95 double actual_shrink = static_cast<float>(print_params.desired_dpi / | 95 double actual_shrink = static_cast<float>(print_params.desired_dpi / |
| 96 print_params.dpi); | 96 print_params.dpi); |
| 97 scoped_ptr<Metafile> draft_metafile; | 97 scoped_ptr<Metafile> draft_metafile; |
| 98 Metafile* initial_render_metafile = print_preview_context_.metafile(); | 98 Metafile* initial_render_metafile = print_preview_context_.metafile(); |
| 99 | 99 |
| 100 if (print_preview_context_.IsModifiable() && is_print_ready_metafile_sent_) { | 100 if (print_preview_context_.IsModifiable() && is_print_ready_metafile_sent_) { |
| 101 draft_metafile.reset(new PreviewMetafile); | 101 draft_metafile.reset(new PdfMetafileSkia); |
| 102 initial_render_metafile = draft_metafile.get(); | 102 initial_render_metafile = draft_metafile.get(); |
| 103 } | 103 } |
| 104 | 104 |
| 105 base::TimeTicks begin_time = base::TimeTicks::Now(); | 105 base::TimeTicks begin_time = base::TimeTicks::Now(); |
| 106 RenderPage(print_params, page_number, print_preview_context_.prepared_frame(), | 106 RenderPage(print_params, page_number, print_preview_context_.prepared_frame(), |
| 107 true, initial_render_metafile, &actual_shrink, NULL, NULL); | 107 true, initial_render_metafile, &actual_shrink, NULL, NULL); |
| 108 print_preview_context_.RenderedPreviewPage( | 108 print_preview_context_.RenderedPreviewPage( |
| 109 base::TimeTicks::Now() - begin_time); | 109 base::TimeTicks::Now() - begin_time); |
| 110 | 110 |
| 111 if (draft_metafile.get()) { | 111 if (draft_metafile.get()) { |
| (...skipping 128 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 240 } | 240 } |
| 241 shared_buf.GiveToProcess(base::GetCurrentProcessHandle(), shared_mem_handle); | 241 shared_buf.GiveToProcess(base::GetCurrentProcessHandle(), shared_mem_handle); |
| 242 shared_buf.Unmap(); | 242 shared_buf.Unmap(); |
| 243 | 243 |
| 244 Send(new PrintHostMsg_DuplicateSection(routing_id(), *shared_mem_handle, | 244 Send(new PrintHostMsg_DuplicateSection(routing_id(), *shared_mem_handle, |
| 245 shared_mem_handle)); | 245 shared_mem_handle)); |
| 246 return true; | 246 return true; |
| 247 } | 247 } |
| 248 | 248 |
| 249 } // namespace printing | 249 } // namespace printing |
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