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comparison: gfx/thebes/gfxPSSurface.cpp
gfx/thebes/gfxPSSurface.cpp
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:c91b727502a9 |
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| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "gfxPSSurface.h" | |
| 7 | |
| 8 #include "cairo.h" | |
| 9 #include "cairo-ps.h" | |
| 10 | |
| 11 static cairo_status_t | |
| 12 write_func(void *closure, const unsigned char *data, unsigned int length) | |
| 13 { | |
| 14 nsCOMPtr<nsIOutputStream> out = reinterpret_cast<nsIOutputStream*>(closure); | |
| 15 do { | |
| 16 uint32_t wrote = 0; | |
| 17 if (NS_FAILED(out->Write((const char*)data, length, &wrote))) | |
| 18 break; | |
| 19 data += wrote; length -= wrote; | |
| 20 } while (length > 0); | |
| 21 NS_ASSERTION(length == 0, "not everything was written to the file"); | |
| 22 return CAIRO_STATUS_SUCCESS; | |
| 23 } | |
| 24 | |
| 25 gfxPSSurface::gfxPSSurface(nsIOutputStream *aStream, const gfxSize& aSizeInPoints, PageOrientation aOrientation) | |
| 26 : mStream(aStream), mXDPI(-1), mYDPI(-1), mOrientation(aOrientation) | |
| 27 { | |
| 28 mSize = gfxIntSize(aSizeInPoints.width, aSizeInPoints.height); | |
| 29 | |
| 30 // The PS output does not specify the page size so to print | |
| 31 // landscape we need to rotate the drawing 90 degrees and print on | |
| 32 // portrait paper. If printing landscape, swap the width/height | |
| 33 // supplied to cairo to select a portrait print area. gfxContext | |
| 34 // will perform the rotation when GetRotateForLandscape() is TRUE. | |
| 35 gfxIntSize cairoSize; | |
| 36 if (mOrientation == PORTRAIT) { | |
| 37 cairoSize = mSize; | |
| 38 } else { | |
| 39 cairoSize = gfxIntSize(mSize.height, mSize.width); | |
| 40 } | |
| 41 cairo_surface_t* ps_surface = cairo_ps_surface_create_for_stream(write_func, (void*)mStream, cairoSize.width, cairoSize.height); | |
| 42 cairo_ps_surface_restrict_to_level(ps_surface, CAIRO_PS_LEVEL_2); | |
| 43 Init(ps_surface); | |
| 44 } | |
| 45 | |
| 46 gfxPSSurface::~gfxPSSurface() | |
| 47 { | |
| 48 } | |
| 49 | |
| 50 nsresult | |
| 51 gfxPSSurface::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName) | |
| 52 { | |
| 53 if (mOrientation == PORTRAIT) { | |
| 54 cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Portrait"); | |
| 55 } else { | |
| 56 cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Landscape"); | |
| 57 } | |
| 58 return NS_OK; | |
| 59 } | |
| 60 | |
| 61 nsresult | |
| 62 gfxPSSurface::EndPrinting() | |
| 63 { | |
| 64 return NS_OK; | |
| 65 } | |
| 66 | |
| 67 nsresult | |
| 68 gfxPSSurface::AbortPrinting() | |
| 69 { | |
| 70 return NS_OK; | |
| 71 } | |
| 72 | |
| 73 nsresult | |
| 74 gfxPSSurface::BeginPage() | |
| 75 { | |
| 76 return NS_OK; | |
| 77 } | |
| 78 | |
| 79 nsresult | |
| 80 gfxPSSurface::EndPage() | |
| 81 { | |
| 82 cairo_surface_show_page(CairoSurface()); | |
| 83 return NS_OK; | |
| 84 } | |
| 85 | |
| 86 void | |
| 87 gfxPSSurface::Finish() | |
| 88 { | |
| 89 gfxASurface::Finish(); | |
| 90 mStream->Close(); | |
| 91 } | |
| 92 | |
| 93 void | |
| 94 gfxPSSurface::SetDPI(double xDPI, double yDPI) | |
| 95 { | |
| 96 mXDPI = xDPI; | |
| 97 mYDPI = yDPI; | |
| 98 cairo_surface_set_fallback_resolution(CairoSurface(), xDPI, yDPI); | |
| 99 } | |
| 100 | |
| 101 void | |
| 102 gfxPSSurface::GetDPI(double *xDPI, double *yDPI) | |
| 103 { | |
| 104 *xDPI = mXDPI; | |
| 105 *yDPI = mYDPI; | |
| 106 } | |
| 107 |
