1 : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2 : * ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is Mozilla Foundation Code.
16 : *
17 : * The Initial Developer of the Original Code is Mozilla Foundation.
18 : * Portions created by the Initial Developer are Copyright (C) 2006
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : * Stuart Parmenter <pavlov@pavlov.net>
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either the GNU General Public License Version 2 or later (the "GPL"), or
26 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
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29 : * under the terms of either the GPL or the LGPL, and not to allow others to
30 : * use your version of this file under the terms of the MPL, indicate your
31 : * decision by deleting the provisions above and replace them with the notice
32 : * and other provisions required by the GPL or the LGPL. If you do not delete
33 : * the provisions above, a recipient may use your version of this file under
34 : * the terms of any one of the MPL, the GPL or the LGPL.
35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #include "gfxPSSurface.h"
39 :
40 : #include "cairo.h"
41 : #include "cairo-ps.h"
42 :
43 : static cairo_status_t
44 0 : write_func(void *closure, const unsigned char *data, unsigned int length)
45 : {
46 0 : nsCOMPtr<nsIOutputStream> out = reinterpret_cast<nsIOutputStream*>(closure);
47 0 : do {
48 0 : PRUint32 wrote = 0;
49 0 : if (NS_FAILED(out->Write((const char*)data, length, &wrote)))
50 0 : break;
51 0 : data += wrote; length -= wrote;
52 : } while (length > 0);
53 0 : NS_ASSERTION(length == 0, "not everything was written to the file");
54 0 : return CAIRO_STATUS_SUCCESS;
55 : }
56 :
57 0 : gfxPSSurface::gfxPSSurface(nsIOutputStream *aStream, const gfxSize& aSizeInPoints, PageOrientation aOrientation)
58 0 : : mStream(aStream), mXDPI(-1), mYDPI(-1), mOrientation(aOrientation)
59 : {
60 0 : mSize = gfxIntSize(aSizeInPoints.width, aSizeInPoints.height);
61 :
62 : // The PS output does not specify the page size so to print
63 : // landscape we need to rotate the drawing 90 degrees and print on
64 : // portrait paper. If printing landscape, swap the width/height
65 : // supplied to cairo to select a portrait print area. gfxContext
66 : // will perform the rotation when GetRotateForLandscape() is TRUE.
67 0 : gfxIntSize cairoSize;
68 0 : if (mOrientation == PORTRAIT) {
69 0 : cairoSize = mSize;
70 : } else {
71 0 : cairoSize = gfxIntSize(mSize.height, mSize.width);
72 : }
73 0 : cairo_surface_t* ps_surface = cairo_ps_surface_create_for_stream(write_func, (void*)mStream, cairoSize.width, cairoSize.height);
74 0 : cairo_ps_surface_restrict_to_level(ps_surface, CAIRO_PS_LEVEL_2);
75 0 : Init(ps_surface);
76 0 : }
77 :
78 0 : gfxPSSurface::~gfxPSSurface()
79 : {
80 0 : }
81 :
82 : nsresult
83 0 : gfxPSSurface::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName)
84 : {
85 0 : if (mOrientation == PORTRAIT) {
86 0 : cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Portrait");
87 : } else {
88 0 : cairo_ps_surface_dsc_comment (mSurface, "%%Orientation: Landscape");
89 : }
90 0 : return NS_OK;
91 : }
92 :
93 : nsresult
94 0 : gfxPSSurface::EndPrinting()
95 : {
96 0 : return NS_OK;
97 : }
98 :
99 : nsresult
100 0 : gfxPSSurface::AbortPrinting()
101 : {
102 0 : return NS_OK;
103 : }
104 :
105 : nsresult
106 0 : gfxPSSurface::BeginPage()
107 : {
108 0 : return NS_OK;
109 : }
110 :
111 : nsresult
112 0 : gfxPSSurface::EndPage()
113 : {
114 0 : cairo_surface_show_page(CairoSurface());
115 0 : return NS_OK;
116 : }
117 :
118 : void
119 0 : gfxPSSurface::Finish()
120 : {
121 0 : gfxASurface::Finish();
122 0 : mStream->Close();
123 0 : }
124 :
125 : void
126 0 : gfxPSSurface::SetDPI(double xDPI, double yDPI)
127 : {
128 0 : mXDPI = xDPI;
129 0 : mYDPI = yDPI;
130 0 : cairo_surface_set_fallback_resolution(CairoSurface(), xDPI, yDPI);
131 0 : }
132 :
133 : void
134 0 : gfxPSSurface::GetDPI(double *xDPI, double *yDPI)
135 : {
136 0 : *xDPI = mXDPI;
137 0 : *yDPI = mYDPI;
138 0 : }
139 :
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