gfx/src/thebes/nsThebesGfxFactory.cpp

   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 thebes gfx
  16  *
  17  * The Initial Developer of the Original Code is
  18  * mozilla.org.
  19  * Portions created by the Initial Developer are Copyright (C) 2005
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *   Vladimir Vukicevic <vladimir@pobox.com>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
  27  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
  29  * of those above. If you wish to allow use of your version of this file only
  30  * under the terms of either the GPL or the LGPL, and not to allow others to
  31  * use your version of this file under the terms of the MPL, indicate your
  32  * decision by deleting the provisions above and replace them with the notice
  33  * and other provisions required by the GPL or the LGPL. If you do not delete
  34  * the provisions above, a recipient may use your version of this file under
  35  * the terms of any one of the MPL, the GPL or the LGPL.
  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #include "mozilla/ModuleUtils.h"
  40 #include "nsCOMPtr.h"
  41 #include "nsGfxCIID.h"
  42
  43 #include "nsScriptableRegion.h"
  44
  45 #include "nsThebesDeviceContext.h"
  46 #include "nsThebesRenderingContext.h"
  47 #include "nsThebesRegion.h"
  48 #include "nsThebesFontMetrics.h"
  49 #include "nsThebesFontEnumerator.h"
  50 #include "gfxPlatform.h"
  51
  52 NS_GENERIC_FACTORY_CONSTRUCTOR(nsThebesFontMetrics)
  53 NS_GENERIC_FACTORY_CONSTRUCTOR(nsThebesDeviceContext)
  54 NS_GENERIC_FACTORY_CONSTRUCTOR(nsThebesRenderingContext)
  55 NS_GENERIC_FACTORY_CONSTRUCTOR(nsThebesRegion)
  56 NS_GENERIC_FACTORY_CONSTRUCTOR(nsThebesFontEnumerator)
  57
  58 static nsresult
  59 nsScriptableRegionConstructor(nsISupports *aOuter, REFNSIID aIID, void **aResult)
  60 {
  61   nsresult rv;
  62
  63   nsIScriptableRegion *inst = nsnull;
  64
  65   if ( !aResult )
  66   {
  67     rv = NS_ERROR_NULL_POINTER;
  68     return rv;
  69   }
  70   *aResult = nsnull;
  71   if (aOuter)
  72   {
  73     rv = NS_ERROR_NO_AGGREGATION;
  74     return rv;
  75   }
  76
  77   nsCOMPtr <nsIRegion> rgn = new nsThebesRegion();
  78   nsCOMPtr<nsIScriptableRegion> scriptableRgn;
  79   if (rgn != nsnull)
  80   {
  81     scriptableRgn = new nsScriptableRegion(rgn);
  82     inst = scriptableRgn;
  83   }
  84   if (!inst)
  85   {
  86     rv = NS_ERROR_OUT_OF_MEMORY;
  87     return rv;
  88   }
  89   NS_ADDREF(inst);
  90   // release our variable above now that we have created our owning
  91   // reference - we don't want this to go out of scope early!
  92   scriptableRgn = nsnull;
  93   rv = inst->QueryInterface(aIID, aResult);
  94   NS_RELEASE(inst);
  95
  96   return rv;
  97 }
  98
  99 NS_DEFINE_NAMED_CID(NS_FONT_METRICS_CID);
 100 NS_DEFINE_NAMED_CID(NS_FONT_ENUMERATOR_CID);
 101 NS_DEFINE_NAMED_CID(NS_DEVICE_CONTEXT_CID);
 102 NS_DEFINE_NAMED_CID(NS_RENDERING_CONTEXT_CID);
 103 NS_DEFINE_NAMED_CID(NS_REGION_CID);
 104 NS_DEFINE_NAMED_CID(NS_SCRIPTABLE_REGION_CID);
 105
 106 static const mozilla::Module::CIDEntry kThebesCIDs[] = {
 107     { &kNS_FONT_METRICS_CID, false, NULL, nsThebesFontMetricsConstructor },
 108     { &kNS_FONT_ENUMERATOR_CID, false, NULL, nsThebesFontEnumeratorConstructor },
 109     { &kNS_DEVICE_CONTEXT_CID, false, NULL, nsThebesDeviceContextConstructor },
 110     { &kNS_RENDERING_CONTEXT_CID, false, NULL, nsThebesRenderingContextConstructor },
 111     { &kNS_REGION_CID, false, NULL, nsThebesRegionConstructor },
 112     { &kNS_SCRIPTABLE_REGION_CID, false, NULL, nsScriptableRegionConstructor },
 113     { NULL }
 114 };
 115
 116 static const mozilla::Module::ContractIDEntry kThebesContracts[] = {
 117     { "@mozilla.org/gfx/fontmetrics;1", &kNS_FONT_METRICS_CID },
 118     { "@mozilla.org/gfx/fontenumerator;1", &kNS_FONT_ENUMERATOR_CID },
 119     { "@mozilla.org/gfx/devicecontext;1", &kNS_DEVICE_CONTEXT_CID },
 120     { "@mozilla.org/gfx/renderingcontext;1", &kNS_RENDERING_CONTEXT_CID },
 121     { "@mozilla.org/gfx/region/nsThebes;1", &kNS_REGION_CID },
 122     { "@mozilla.org/gfx/region;1", &kNS_SCRIPTABLE_REGION_CID },
 123     { NULL }
 124 };
 125
 126 static nsresult
 127 nsThebesGfxModuleCtor()
 128 {
 129     return gfxPlatform::Init();
 130 }
 131
 132 static void
 133 nsThebesGfxModuleDtor()
 134 {
 135     nsThebesDeviceContext::Shutdown();
 136     gfxPlatform::Shutdown();
 137 }
 138
 139 static const mozilla::Module kThebesModule = {
 140     mozilla::Module::kVersion,
 141     kThebesCIDs,
 142     kThebesContracts,
 143     NULL,
 144     NULL,
 145     nsThebesGfxModuleCtor,
 146     nsThebesGfxModuleDtor
 147 };
 148
 149 NSMODULE_DEFN(nsGfxModule) = &kThebesModule;