15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "printing/image.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/win/scoped_gdi_object.h" 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/win/scoped_hdc.h" 92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/win/scoped_select_object.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "printing/metafile.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "skia/ext/platform_device.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/gdi_util.h" // EMF support 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/rect.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A simple class which temporarily overrides system settings. 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The bitmap image rendered via the PlayEnhMetaFile() function depends on 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// some system settings. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// As a workaround for such dependency, this class saves the system settings 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// and changes them. This class also restore the saved settings in its 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// destructor. 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class DisableFontSmoothing { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit DisableFontSmoothing() : enable_again_(false) { 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BOOL enabled; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (SystemParametersInfo(SPI_GETFONTSMOOTHING, 0, &enabled, 0) && 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enabled) { 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (SystemParametersInfo(SPI_SETFONTSMOOTHING, FALSE, NULL, 0)) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_again_ = true; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~DisableFontSmoothing() { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_again_) { 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BOOL result = SystemParametersInfo(SPI_SETFONTSMOOTHING, TRUE, NULL, 0); 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(result); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_again_; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(DisableFontSmoothing); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace printing { 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool Image::LoadMetafile(const Metafile& metafile) { 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Rect rect(metafile.GetPageBounds(1)); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DisableFontSmoothing disable_in_this_scope; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Create a temporary HDC and bitmap to retrieve the rendered data. 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::win::ScopedCreateDC hdc(::CreateCompatibleDC(NULL)); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BITMAPV4HEADER hdr; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(rect.x(), 0); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(rect.y(), 0); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_GE(rect.width(), 0); // Metafile could be empty. 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_GE(rect.height(), 0); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (rect.width() < 1 || rect.height() < 1) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_ = rect.size(); 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::CreateBitmapV4Header(rect.width(), rect.height(), &hdr); 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) unsigned char* bits = NULL; 702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::win::ScopedBitmap bitmap( 711320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci ::CreateDIBSection(hdc.Get(), reinterpret_cast<BITMAPINFO*>(&hdr), 0, 722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<void**>(&bits), NULL, 0)); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(bitmap); 741320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci base::win::ScopedSelectObject select_object(hdc.Get(), bitmap); 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 761320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci skia::InitializeDC(hdc.Get()); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 781320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci bool success = metafile.Playback(hdc.Get(), NULL); 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) row_length_ = size_.width() * sizeof(uint32); 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t bytes = row_length_ * size_.height(); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(bytes); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) data_.assign(bits, bits + bytes); 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return success; 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace printing 90