├── .gitattributes ├── .gitignore ├── .vscode └── iisexpress.json ├── CNAME ├── LICENSE ├── README.MD ├── index.html ├── js └── convert.js └── src ├── png2icojs.js ├── png2icojs.js.map ├── png2icojs.min.js ├── png2icojs.ts └── tsconfig.json /.gitattributes: -------------------------------------------------------------------------------- 1 | ############################################################################### 2 | # Set default behavior to automatically normalize line endings. 3 | ############################################################################### 4 | * text=auto 5 | 6 | ############################################################################### 7 | # Set default behavior for command prompt diff. 8 | # 9 | # This is need for earlier builds of msysgit that does not have it on by 10 | # default for csharp files. 11 | # Note: This is only used by command line 12 | ############################################################################### 13 | #*.cs diff=csharp 14 | 15 | ############################################################################### 16 | # Set the merge driver for project and solution files 17 | # 18 | # Merging from the command prompt will add diff markers to the files if there 19 | # are conflicts (Merging from VS is not affected by the settings below, in VS 20 | # the diff markers are never inserted). Diff markers may cause the following 21 | # file extensions to fail to load in VS. An alternative would be to treat 22 | # these files as binary and thus will always conflict and require user 23 | # intervention with every merge. To do so, just uncomment the entries below 24 | ############################################################################### 25 | #*.sln merge=binary 26 | #*.csproj merge=binary 27 | #*.vbproj merge=binary 28 | #*.vcxproj merge=binary 29 | #*.vcproj merge=binary 30 | #*.dbproj merge=binary 31 | #*.fsproj merge=binary 32 | #*.lsproj merge=binary 33 | #*.wixproj merge=binary 34 | #*.modelproj merge=binary 35 | #*.sqlproj merge=binary 36 | #*.wwaproj merge=binary 37 | 38 | ############################################################################### 39 | # behavior for image files 40 | # 41 | # image files are treated as binary by default. 42 | ############################################################################### 43 | #*.jpg binary 44 | #*.png binary 45 | #*.gif binary 46 | 47 | ############################################################################### 48 | # diff behavior for common document formats 49 | # 50 | # Convert binary document formats to text before diffing them. This feature 51 | # is only available from the command line. Turn it on by uncommenting the 52 | # entries below. 53 | ############################################################################### 54 | #*.doc diff=astextplain 55 | #*.DOC diff=astextplain 56 | #*.docx diff=astextplain 57 | #*.DOCX diff=astextplain 58 | #*.dot diff=astextplain 59 | #*.DOT diff=astextplain 60 | #*.pdf diff=astextplain 61 | #*.PDF diff=astextplain 62 | #*.rtf diff=astextplain 63 | #*.RTF diff=astextplain 64 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.rsuser 8 | *.suo 9 | *.user 10 | *.userosscache 11 | *.sln.docstates 12 | 13 | # User-specific files (MonoDevelop/Xamarin Studio) 14 | *.userprefs 15 | 16 | # Mono auto generated files 17 | mono_crash.* 18 | 19 | # Build results 20 | [Dd]ebug/ 21 | [Dd]ebugPublic/ 22 | [Rr]elease/ 23 | [Rr]eleases/ 24 | x64/ 25 | x86/ 26 | [Ww][Ii][Nn]32/ 27 | [Aa][Rr][Mm]/ 28 | [Aa][Rr][Mm]64/ 29 | bld/ 30 | [Bb]in/ 31 | [Oo]bj/ 32 | [Oo]ut/ 33 | [Ll]og/ 34 | [Ll]ogs/ 35 | 36 | # Visual Studio 2015/2017 cache/options directory 37 | .vs/ 38 | # Uncomment if you have tasks that create the project's static files in wwwroot 39 | #wwwroot/ 40 | 41 | # Visual Studio 2017 auto generated files 42 | Generated\ Files/ 43 | 44 | # MSTest test Results 45 | [Tt]est[Rr]esult*/ 46 | [Bb]uild[Ll]og.* 47 | 48 | # NUnit 49 | *.VisualState.xml 50 | TestResult.xml 51 | nunit-*.xml 52 | 53 | # Build Results of an ATL Project 54 | [Dd]ebugPS/ 55 | [Rr]eleasePS/ 56 | dlldata.c 57 | 58 | # Benchmark Results 59 | BenchmarkDotNet.Artifacts/ 60 | 61 | # .NET Core 62 | project.lock.json 63 | project.fragment.lock.json 64 | artifacts/ 65 | 66 | # ASP.NET Scaffolding 67 | ScaffoldingReadMe.txt 68 | 69 | # StyleCop 70 | StyleCopReport.xml 71 | 72 | # Files built by Visual Studio 73 | *_i.c 74 | *_p.c 75 | *_h.h 76 | *.ilk 77 | *.meta 78 | *.obj 79 | *.iobj 80 | *.pch 81 | *.pdb 82 | *.ipdb 83 | *.pgc 84 | *.pgd 85 | *.rsp 86 | *.sbr 87 | *.tlb 88 | *.tli 89 | *.tlh 90 | *.tmp 91 | *.tmp_proj 92 | *_wpftmp.csproj 93 | *.log 94 | *.vspscc 95 | *.vssscc 96 | .builds 97 | *.pidb 98 | *.svclog 99 | *.scc 100 | 101 | # Chutzpah Test files 102 | _Chutzpah* 103 | 104 | # Visual C++ cache files 105 | ipch/ 106 | *.aps 107 | *.ncb 108 | *.opendb 109 | *.opensdf 110 | *.sdf 111 | *.cachefile 112 | *.VC.db 113 | *.VC.VC.opendb 114 | 115 | # Visual Studio profiler 116 | *.psess 117 | *.vsp 118 | *.vspx 119 | *.sap 120 | 121 | # Visual Studio Trace Files 122 | *.e2e 123 | 124 | # TFS 2012 Local Workspace 125 | $tf/ 126 | 127 | # Guidance Automation Toolkit 128 | *.gpState 129 | 130 | # ReSharper is a .NET coding add-in 131 | _ReSharper*/ 132 | *.[Rr]e[Ss]harper 133 | *.DotSettings.user 134 | 135 | # TeamCity is a build add-in 136 | _TeamCity* 137 | 138 | # DotCover is a Code Coverage Tool 139 | *.dotCover 140 | 141 | # AxoCover is a Code Coverage Tool 142 | .axoCover/* 143 | !.axoCover/settings.json 144 | 145 | # Coverlet is a free, cross platform Code Coverage Tool 146 | coverage*.json 147 | coverage*.xml 148 | coverage*.info 149 | 150 | # Visual Studio code coverage results 151 | *.coverage 152 | *.coveragexml 153 | 154 | # NCrunch 155 | _NCrunch_* 156 | .*crunch*.local.xml 157 | nCrunchTemp_* 158 | 159 | # MightyMoose 160 | *.mm.* 161 | AutoTest.Net/ 162 | 163 | # Web workbench (sass) 164 | .sass-cache/ 165 | 166 | # Installshield output folder 167 | [Ee]xpress/ 168 | 169 | # DocProject is a documentation generator add-in 170 | DocProject/buildhelp/ 171 | DocProject/Help/*.HxT 172 | DocProject/Help/*.HxC 173 | DocProject/Help/*.hhc 174 | DocProject/Help/*.hhk 175 | DocProject/Help/*.hhp 176 | DocProject/Help/Html2 177 | DocProject/Help/html 178 | 179 | # Click-Once directory 180 | publish/ 181 | 182 | # Publish Web Output 183 | *.[Pp]ublish.xml 184 | *.azurePubxml 185 | # Note: Comment the next line if you want to checkin your web deploy settings, 186 | # but database connection strings (with potential passwords) will be unencrypted 187 | *.pubxml 188 | *.publishproj 189 | 190 | # Microsoft Azure Web App publish settings. Comment the next line if you want to 191 | # checkin your Azure Web App publish settings, but sensitive information contained 192 | # in these scripts will be unencrypted 193 | PublishScripts/ 194 | 195 | # NuGet Packages 196 | *.nupkg 197 | # NuGet Symbol Packages 198 | *.snupkg 199 | # The packages folder can be ignored because of Package Restore 200 | **/[Pp]ackages/* 201 | # except build/, which is used as an MSBuild target. 202 | !**/[Pp]ackages/build/ 203 | # Uncomment if necessary however generally it will be regenerated when needed 204 | #!**/[Pp]ackages/repositories.config 205 | # NuGet v3's project.json files produces more ignorable files 206 | *.nuget.props 207 | *.nuget.targets 208 | 209 | # Microsoft Azure Build Output 210 | csx/ 211 | *.build.csdef 212 | 213 | # Microsoft Azure Emulator 214 | ecf/ 215 | rcf/ 216 | 217 | # Windows Store app package directories and files 218 | AppPackages/ 219 | BundleArtifacts/ 220 | Package.StoreAssociation.xml 221 | _pkginfo.txt 222 | *.appx 223 | *.appxbundle 224 | *.appxupload 225 | 226 | # Visual Studio cache files 227 | # files ending in .cache can be ignored 228 | *.[Cc]ache 229 | # but keep track of directories ending in .cache 230 | !?*.[Cc]ache/ 231 | 232 | # Others 233 | ClientBin/ 234 | ~$* 235 | *~ 236 | *.dbmdl 237 | *.dbproj.schemaview 238 | *.jfm 239 | *.pfx 240 | *.publishsettings 241 | orleans.codegen.cs 242 | 243 | # Including strong name files can present a security risk 244 | # (https://github.com/github/gitignore/pull/2483#issue-259490424) 245 | #*.snk 246 | 247 | # Since there are multiple workflows, uncomment next line to ignore bower_components 248 | # (https://github.com/github/gitignore/pull/1529#issuecomment-104372622) 249 | #bower_components/ 250 | 251 | # RIA/Silverlight projects 252 | Generated_Code/ 253 | 254 | # Backup & report files from converting an old project file 255 | # to a newer Visual Studio version. Backup files are not needed, 256 | # because we have git ;-) 257 | _UpgradeReport_Files/ 258 | Backup*/ 259 | UpgradeLog*.XML 260 | UpgradeLog*.htm 261 | ServiceFabricBackup/ 262 | *.rptproj.bak 263 | 264 | # SQL Server files 265 | *.mdf 266 | *.ldf 267 | *.ndf 268 | 269 | # Business Intelligence projects 270 | *.rdl.data 271 | *.bim.layout 272 | *.bim_*.settings 273 | *.rptproj.rsuser 274 | *- [Bb]ackup.rdl 275 | *- [Bb]ackup ([0-9]).rdl 276 | *- [Bb]ackup ([0-9][0-9]).rdl 277 | 278 | # Microsoft Fakes 279 | FakesAssemblies/ 280 | 281 | # GhostDoc plugin setting file 282 | *.GhostDoc.xml 283 | 284 | # Node.js Tools for Visual Studio 285 | .ntvs_analysis.dat 286 | node_modules/ 287 | 288 | # Visual Studio 6 build log 289 | *.plg 290 | 291 | # Visual Studio 6 workspace options file 292 | *.opt 293 | 294 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.) 295 | *.vbw 296 | 297 | # Visual Studio LightSwitch build output 298 | **/*.HTMLClient/GeneratedArtifacts 299 | **/*.DesktopClient/GeneratedArtifacts 300 | **/*.DesktopClient/ModelManifest.xml 301 | **/*.Server/GeneratedArtifacts 302 | **/*.Server/ModelManifest.xml 303 | _Pvt_Extensions 304 | 305 | # Paket dependency manager 306 | .paket/paket.exe 307 | paket-files/ 308 | 309 | # FAKE - F# Make 310 | .fake/ 311 | 312 | # CodeRush personal settings 313 | .cr/personal 314 | 315 | # Python Tools for Visual Studio (PTVS) 316 | __pycache__/ 317 | *.pyc 318 | 319 | # Cake - Uncomment if you are using it 320 | # tools/** 321 | # !tools/packages.config 322 | 323 | # Tabs Studio 324 | *.tss 325 | 326 | # Telerik's JustMock configuration file 327 | *.jmconfig 328 | 329 | # BizTalk build output 330 | *.btp.cs 331 | *.btm.cs 332 | *.odx.cs 333 | *.xsd.cs 334 | 335 | # OpenCover UI analysis results 336 | OpenCover/ 337 | 338 | # Azure Stream Analytics local run output 339 | ASALocalRun/ 340 | 341 | # MSBuild Binary and Structured Log 342 | *.binlog 343 | 344 | # NVidia Nsight GPU debugger configuration file 345 | *.nvuser 346 | 347 | # MFractors (Xamarin productivity tool) working folder 348 | .mfractor/ 349 | 350 | # Local History for Visual Studio 351 | .localhistory/ 352 | 353 | # BeatPulse healthcheck temp database 354 | healthchecksdb 355 | 356 | # Backup folder for Package Reference Convert tool in Visual Studio 2017 357 | MigrationBackup/ 358 | 359 | # Ionide (cross platform F# VS Code tools) working folder 360 | .ionide/ 361 | 362 | # Fody - auto-generated XML schema 363 | FodyWeavers.xsd -------------------------------------------------------------------------------- /.vscode/iisexpress.json: -------------------------------------------------------------------------------- 1 | { 2 | "port": 44300, 3 | "path": "./", 4 | "clr": "v4.0", 5 | "protocol": "https" 6 | } 7 | -------------------------------------------------------------------------------- /CNAME: -------------------------------------------------------------------------------- 1 | png2icojs.lukevo.com -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. We, the Free Software Foundation, use the 18 | GNU General Public License for most of our software; it applies also to 19 | any other work released this way by its authors. You can apply it to 20 | your programs, too. 21 | 22 | When we speak of free software, we are referring to freedom, not 23 | price. Our General Public Licenses are designed to make sure that you 24 | have the freedom to distribute copies of free software (and charge for 25 | them if you wish), that you receive source code or can get it if you 26 | want it, that you can change the software or use pieces of it in new 27 | free programs, and that you know you can do these things. 28 | 29 | To protect your rights, we need to prevent others from denying you 30 | these rights or asking you to surrender the rights. Therefore, you have 31 | certain responsibilities if you distribute copies of the software, or if 32 | you modify it: responsibilities to respect the freedom of others. 33 | 34 | For example, if you distribute copies of such a program, whether 35 | gratis or for a fee, you must pass on to the recipients the same 36 | freedoms that you received. You must make sure that they, too, receive 37 | or can get the source code. And you must show them these terms so they 38 | know their rights. 39 | 40 | Developers that use the GNU GPL protect your rights with two steps: 41 | (1) assert copyright on the software, and (2) offer you this License 42 | giving you legal permission to copy, distribute and/or modify it. 43 | 44 | For the developers' and authors' protection, the GPL clearly explains 45 | that there is no warranty for this free software. For both users' and 46 | authors' sake, the GPL requires that modified versions be marked as 47 | changed, so that their problems will not be attributed erroneously to 48 | authors of previous versions. 49 | 50 | Some devices are designed to deny users access to install or run 51 | modified versions of the software inside them, although the manufacturer 52 | can do so. This is fundamentally incompatible with the aim of 53 | protecting users' freedom to change the software. The systematic 54 | pattern of such abuse occurs in the area of products for individuals to 55 | use, which is precisely where it is most unacceptable. Therefore, we 56 | have designed this version of the GPL to prohibit the practice for those 57 | products. If such problems arise substantially in other domains, we 58 | stand ready to extend this provision to those domains in future versions 59 | of the GPL, as needed to protect the freedom of users. 60 | 61 | Finally, every program is threatened constantly by software patents. 62 | States should not allow patents to restrict development and use of 63 | software on general-purpose computers, but in those that do, we wish to 64 | avoid the special danger that patents applied to a free program could 65 | make it effectively proprietary. To prevent this, the GPL assures that 66 | patents cannot be used to render the program non-free. 67 | 68 | The precise terms and conditions for copying, distribution and 69 | modification follow. 70 | 71 | TERMS AND CONDITIONS 72 | 73 | 0. Definitions. 74 | 75 | "This License" refers to version 3 of the GNU General Public License. 76 | 77 | "Copyright" also means copyright-like laws that apply to other kinds of 78 | works, such as semiconductor masks. 79 | 80 | "The Program" refers to any copyrightable work licensed under this 81 | License. Each licensee is addressed as "you". "Licensees" and 82 | "recipients" may be individuals or organizations. 83 | 84 | To "modify" a work means to copy from or adapt all or part of the work 85 | in a fashion requiring copyright permission, other than the making of an 86 | exact copy. The resulting work is called a "modified version" of the 87 | earlier work or a work "based on" the earlier work. 88 | 89 | A "covered work" means either the unmodified Program or a work based 90 | on the Program. 91 | 92 | To "propagate" a work means to do anything with it that, without 93 | permission, would make you directly or secondarily liable for 94 | infringement under applicable copyright law, except executing it on a 95 | computer or modifying a private copy. Propagation includes copying, 96 | distribution (with or without modification), making available to the 97 | public, and in some countries other activities as well. 98 | 99 | To "convey" a work means any kind of propagation that enables other 100 | parties to make or receive copies. Mere interaction with a user through 101 | a computer network, with no transfer of a copy, is not conveying. 102 | 103 | An interactive user interface displays "Appropriate Legal Notices" 104 | to the extent that it includes a convenient and prominently visible 105 | feature that (1) displays an appropriate copyright notice, and (2) 106 | tells the user that there is no warranty for the work (except to the 107 | extent that warranties are provided), that licensees may convey the 108 | work under this License, and how to view a copy of this License. If 109 | the interface presents a list of user commands or options, such as a 110 | menu, a prominent item in the list meets this criterion. 111 | 112 | 1. Source Code. 113 | 114 | The "source code" for a work means the preferred form of the work 115 | for making modifications to it. "Object code" means any non-source 116 | form of a work. 117 | 118 | A "Standard Interface" means an interface that either is an official 119 | standard defined by a recognized standards body, or, in the case of 120 | interfaces specified for a particular programming language, one that 121 | is widely used among developers working in that language. 122 | 123 | The "System Libraries" of an executable work include anything, other 124 | than the work as a whole, that (a) is included in the normal form of 125 | packaging a Major Component, but which is not part of that Major 126 | Component, and (b) serves only to enable use of the work with that 127 | Major Component, or to implement a Standard Interface for which an 128 | implementation is available to the public in source code form. A 129 | "Major Component", in this context, means a major essential component 130 | (kernel, window system, and so on) of the specific operating system 131 | (if any) on which the executable work runs, or a compiler used to 132 | produce the work, or an object code interpreter used to run it. 133 | 134 | The "Corresponding Source" for a work in object code form means all 135 | the source code needed to generate, install, and (for an executable 136 | work) run the object code and to modify the work, including scripts to 137 | control those activities. However, it does not include the work's 138 | System Libraries, or general-purpose tools or generally available free 139 | programs which are used unmodified in performing those activities but 140 | which are not part of the work. For example, Corresponding Source 141 | includes interface definition files associated with source files for 142 | the work, and the source code for shared libraries and dynamically 143 | linked subprograms that the work is specifically designed to require, 144 | such as by intimate data communication or control flow between those 145 | subprograms and other parts of the work. 146 | 147 | The Corresponding Source need not include anything that users 148 | can regenerate automatically from other parts of the Corresponding 149 | Source. 150 | 151 | The Corresponding Source for a work in source code form is that 152 | same work. 153 | 154 | 2. Basic Permissions. 155 | 156 | All rights granted under this License are granted for the term of 157 | copyright on the Program, and are irrevocable provided the stated 158 | conditions are met. This License explicitly affirms your unlimited 159 | permission to run the unmodified Program. The output from running a 160 | covered work is covered by this License only if the output, given its 161 | content, constitutes a covered work. This License acknowledges your 162 | rights of fair use or other equivalent, as provided by copyright law. 163 | 164 | You may make, run and propagate covered works that you do not 165 | convey, without conditions so long as your license otherwise remains 166 | in force. You may convey covered works to others for the sole purpose 167 | of having them make modifications exclusively for you, or provide you 168 | with facilities for running those works, provided that you comply with 169 | the terms of this License in conveying all material for which you do 170 | not control copyright. Those thus making or running the covered works 171 | for you must do so exclusively on your behalf, under your direction 172 | and control, on terms that prohibit them from making any copies of 173 | your copyrighted material outside their relationship with you. 174 | 175 | Conveying under any other circumstances is permitted solely under 176 | the conditions stated below. Sublicensing is not allowed; section 10 177 | makes it unnecessary. 178 | 179 | 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 180 | 181 | No covered work shall be deemed part of an effective technological 182 | measure under any applicable law fulfilling obligations under article 183 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or 184 | similar laws prohibiting or restricting circumvention of such 185 | measures. 186 | 187 | When you convey a covered work, you waive any legal power to forbid 188 | circumvention of technological measures to the extent such circumvention 189 | is effected by exercising rights under this License with respect to 190 | the covered work, and you disclaim any intention to limit operation or 191 | modification of the work as a means of enforcing, against the work's 192 | users, your or third parties' legal rights to forbid circumvention of 193 | technological measures. 194 | 195 | 4. Conveying Verbatim Copies. 196 | 197 | You may convey verbatim copies of the Program's source code as you 198 | receive it, in any medium, provided that you conspicuously and 199 | appropriately publish on each copy an appropriate copyright notice; 200 | keep intact all notices stating that this License and any 201 | non-permissive terms added in accord with section 7 apply to the code; 202 | keep intact all notices of the absence of any warranty; and give all 203 | recipients a copy of this License along with the Program. 204 | 205 | You may charge any price or no price for each copy that you convey, 206 | and you may offer support or warranty protection for a fee. 207 | 208 | 5. Conveying Modified Source Versions. 209 | 210 | You may convey a work based on the Program, or the modifications to 211 | produce it from the Program, in the form of source code under the 212 | terms of section 4, provided that you also meet all of these conditions: 213 | 214 | a) The work must carry prominent notices stating that you modified 215 | it, and giving a relevant date. 216 | 217 | b) The work must carry prominent notices stating that it is 218 | released under this License and any conditions added under section 219 | 7. This requirement modifies the requirement in section 4 to 220 | "keep intact all notices". 221 | 222 | c) You must license the entire work, as a whole, under this 223 | License to anyone who comes into possession of a copy. This 224 | License will therefore apply, along with any applicable section 7 225 | additional terms, to the whole of the work, and all its parts, 226 | regardless of how they are packaged. This License gives no 227 | permission to license the work in any other way, but it does not 228 | invalidate such permission if you have separately received it. 229 | 230 | d) If the work has interactive user interfaces, each must display 231 | Appropriate Legal Notices; however, if the Program has interactive 232 | interfaces that do not display Appropriate Legal Notices, your 233 | work need not make them do so. 234 | 235 | A compilation of a covered work with other separate and independent 236 | works, which are not by their nature extensions of the covered work, 237 | and which are not combined with it such as to form a larger program, 238 | in or on a volume of a storage or distribution medium, is called an 239 | "aggregate" if the compilation and its resulting copyright are not 240 | used to limit the access or legal rights of the compilation's users 241 | beyond what the individual works permit. Inclusion of a covered work 242 | in an aggregate does not cause this License to apply to the other 243 | parts of the aggregate. 244 | 245 | 6. Conveying Non-Source Forms. 246 | 247 | You may convey a covered work in object code form under the terms 248 | of sections 4 and 5, provided that you also convey the 249 | machine-readable Corresponding Source under the terms of this License, 250 | in one of these ways: 251 | 252 | a) Convey the object code in, or embodied in, a physical product 253 | (including a physical distribution medium), accompanied by the 254 | Corresponding Source fixed on a durable physical medium 255 | customarily used for software interchange. 256 | 257 | b) Convey the object code in, or embodied in, a physical product 258 | (including a physical distribution medium), accompanied by a 259 | written offer, valid for at least three years and valid for as 260 | long as you offer spare parts or customer support for that product 261 | model, to give anyone who possesses the object code either (1) a 262 | copy of the Corresponding Source for all the software in the 263 | product that is covered by this License, on a durable physical 264 | medium customarily used for software interchange, for a price no 265 | more than your reasonable cost of physically performing this 266 | conveying of source, or (2) access to copy the 267 | Corresponding Source from a network server at no charge. 268 | 269 | c) Convey individual copies of the object code with a copy of the 270 | written offer to provide the Corresponding Source. This 271 | alternative is allowed only occasionally and noncommercially, and 272 | only if you received the object code with such an offer, in accord 273 | with subsection 6b. 274 | 275 | d) Convey the object code by offering access from a designated 276 | place (gratis or for a charge), and offer equivalent access to the 277 | Corresponding Source in the same way through the same place at no 278 | further charge. You need not require recipients to copy the 279 | Corresponding Source along with the object code. If the place to 280 | copy the object code is a network server, the Corresponding Source 281 | may be on a different server (operated by you or a third party) 282 | that supports equivalent copying facilities, provided you maintain 283 | clear directions next to the object code saying where to find the 284 | Corresponding Source. Regardless of what server hosts the 285 | Corresponding Source, you remain obligated to ensure that it is 286 | available for as long as needed to satisfy these requirements. 287 | 288 | e) Convey the object code using peer-to-peer transmission, provided 289 | you inform other peers where the object code and Corresponding 290 | Source of the work are being offered to the general public at no 291 | charge under subsection 6d. 292 | 293 | A separable portion of the object code, whose source code is excluded 294 | from the Corresponding Source as a System Library, need not be 295 | included in conveying the object code work. 296 | 297 | A "User Product" is either (1) a "consumer product", which means any 298 | tangible personal property which is normally used for personal, family, 299 | or household purposes, or (2) anything designed or sold for incorporation 300 | into a dwelling. In determining whether a product is a consumer product, 301 | doubtful cases shall be resolved in favor of coverage. For a particular 302 | product received by a particular user, "normally used" refers to a 303 | typical or common use of that class of product, regardless of the status 304 | of the particular user or of the way in which the particular user 305 | actually uses, or expects or is expected to use, the product. A product 306 | is a consumer product regardless of whether the product has substantial 307 | commercial, industrial or non-consumer uses, unless such uses represent 308 | the only significant mode of use of the product. 309 | 310 | "Installation Information" for a User Product means any methods, 311 | procedures, authorization keys, or other information required to install 312 | and execute modified versions of a covered work in that User Product from 313 | a modified version of its Corresponding Source. The information must 314 | suffice to ensure that the continued functioning of the modified object 315 | code is in no case prevented or interfered with solely because 316 | modification has been made. 317 | 318 | If you convey an object code work under this section in, or with, or 319 | specifically for use in, a User Product, and the conveying occurs as 320 | part of a transaction in which the right of possession and use of the 321 | User Product is transferred to the recipient in perpetuity or for a 322 | fixed term (regardless of how the transaction is characterized), the 323 | Corresponding Source conveyed under this section must be accompanied 324 | by the Installation Information. But this requirement does not apply 325 | if neither you nor any third party retains the ability to install 326 | modified object code on the User Product (for example, the work has 327 | been installed in ROM). 328 | 329 | The requirement to provide Installation Information does not include a 330 | requirement to continue to provide support service, warranty, or updates 331 | for a work that has been modified or installed by the recipient, or for 332 | the User Product in which it has been modified or installed. Access to a 333 | network may be denied when the modification itself materially and 334 | adversely affects the operation of the network or violates the rules and 335 | protocols for communication across the network. 336 | 337 | Corresponding Source conveyed, and Installation Information provided, 338 | in accord with this section must be in a format that is publicly 339 | documented (and with an implementation available to the public in 340 | source code form), and must require no special password or key for 341 | unpacking, reading or copying. 342 | 343 | 7. Additional Terms. 344 | 345 | "Additional permissions" are terms that supplement the terms of this 346 | License by making exceptions from one or more of its conditions. 347 | Additional permissions that are applicable to the entire Program shall 348 | be treated as though they were included in this License, to the extent 349 | that they are valid under applicable law. If additional permissions 350 | apply only to part of the Program, that part may be used separately 351 | under those permissions, but the entire Program remains governed by 352 | this License without regard to the additional permissions. 353 | 354 | When you convey a copy of a covered work, you may at your option 355 | remove any additional permissions from that copy, or from any part of 356 | it. (Additional permissions may be written to require their own 357 | removal in certain cases when you modify the work.) You may place 358 | additional permissions on material, added by you to a covered work, 359 | for which you have or can give appropriate copyright permission. 360 | 361 | Notwithstanding any other provision of this License, for material you 362 | add to a covered work, you may (if authorized by the copyright holders of 363 | that material) supplement the terms of this License with terms: 364 | 365 | a) Disclaiming warranty or limiting liability differently from the 366 | terms of sections 15 and 16 of this License; or 367 | 368 | b) Requiring preservation of specified reasonable legal notices or 369 | author attributions in that material or in the Appropriate Legal 370 | Notices displayed by works containing it; or 371 | 372 | c) Prohibiting misrepresentation of the origin of that material, or 373 | requiring that modified versions of such material be marked in 374 | reasonable ways as different from the original version; or 375 | 376 | d) Limiting the use for publicity purposes of names of licensors or 377 | authors of the material; or 378 | 379 | e) Declining to grant rights under trademark law for use of some 380 | trade names, trademarks, or service marks; or 381 | 382 | f) Requiring indemnification of licensors and authors of that 383 | material by anyone who conveys the material (or modified versions of 384 | it) with contractual assumptions of liability to the recipient, for 385 | any liability that these contractual assumptions directly impose on 386 | those licensors and authors. 387 | 388 | All other non-permissive additional terms are considered "further 389 | restrictions" within the meaning of section 10. If the Program as you 390 | received it, or any part of it, contains a notice stating that it is 391 | governed by this License along with a term that is a further 392 | restriction, you may remove that term. If a license document contains 393 | a further restriction but permits relicensing or conveying under this 394 | License, you may add to a covered work material governed by the terms 395 | of that license document, provided that the further restriction does 396 | not survive such relicensing or conveying. 397 | 398 | If you add terms to a covered work in accord with this section, you 399 | must place, in the relevant source files, a statement of the 400 | additional terms that apply to those files, or a notice indicating 401 | where to find the applicable terms. 402 | 403 | Additional terms, permissive or non-permissive, may be stated in the 404 | form of a separately written license, or stated as exceptions; 405 | the above requirements apply either way. 406 | 407 | 8. Termination. 408 | 409 | You may not propagate or modify a covered work except as expressly 410 | provided under this License. Any attempt otherwise to propagate or 411 | modify it is void, and will automatically terminate your rights under 412 | this License (including any patent licenses granted under the third 413 | paragraph of section 11). 414 | 415 | However, if you cease all violation of this License, then your 416 | license from a particular copyright holder is reinstated (a) 417 | provisionally, unless and until the copyright holder explicitly and 418 | finally terminates your license, and (b) permanently, if the copyright 419 | holder fails to notify you of the violation by some reasonable means 420 | prior to 60 days after the cessation. 421 | 422 | Moreover, your license from a particular copyright holder is 423 | reinstated permanently if the copyright holder notifies you of the 424 | violation by some reasonable means, this is the first time you have 425 | received notice of violation of this License (for any work) from that 426 | copyright holder, and you cure the violation prior to 30 days after 427 | your receipt of the notice. 428 | 429 | Termination of your rights under this section does not terminate the 430 | licenses of parties who have received copies or rights from you under 431 | this License. If your rights have been terminated and not permanently 432 | reinstated, you do not qualify to receive new licenses for the same 433 | material under section 10. 434 | 435 | 9. Acceptance Not Required for Having Copies. 436 | 437 | You are not required to accept this License in order to receive or 438 | run a copy of the Program. Ancillary propagation of a covered work 439 | occurring solely as a consequence of using peer-to-peer transmission 440 | to receive a copy likewise does not require acceptance. However, 441 | nothing other than this License grants you permission to propagate or 442 | modify any covered work. These actions infringe copyright if you do 443 | not accept this License. Therefore, by modifying or propagating a 444 | covered work, you indicate your acceptance of this License to do so. 445 | 446 | 10. Automatic Licensing of Downstream Recipients. 447 | 448 | Each time you convey a covered work, the recipient automatically 449 | receives a license from the original licensors, to run, modify and 450 | propagate that work, subject to this License. You are not responsible 451 | for enforcing compliance by third parties with this License. 452 | 453 | An "entity transaction" is a transaction transferring control of an 454 | organization, or substantially all assets of one, or subdividing an 455 | organization, or merging organizations. If propagation of a covered 456 | work results from an entity transaction, each party to that 457 | transaction who receives a copy of the work also receives whatever 458 | licenses to the work the party's predecessor in interest had or could 459 | give under the previous paragraph, plus a right to possession of the 460 | Corresponding Source of the work from the predecessor in interest, if 461 | the predecessor has it or can get it with reasonable efforts. 462 | 463 | You may not impose any further restrictions on the exercise of the 464 | rights granted or affirmed under this License. For example, you may 465 | not impose a license fee, royalty, or other charge for exercise of 466 | rights granted under this License, and you may not initiate litigation 467 | (including a cross-claim or counterclaim in a lawsuit) alleging that 468 | any patent claim is infringed by making, using, selling, offering for 469 | sale, or importing the Program or any portion of it. 470 | 471 | 11. Patents. 472 | 473 | A "contributor" is a copyright holder who authorizes use under this 474 | License of the Program or a work on which the Program is based. The 475 | work thus licensed is called the contributor's "contributor version". 476 | 477 | A contributor's "essential patent claims" are all patent claims 478 | owned or controlled by the contributor, whether already acquired or 479 | hereafter acquired, that would be infringed by some manner, permitted 480 | by this License, of making, using, or selling its contributor version, 481 | but do not include claims that would be infringed only as a 482 | consequence of further modification of the contributor version. For 483 | purposes of this definition, "control" includes the right to grant 484 | patent sublicenses in a manner consistent with the requirements of 485 | this License. 486 | 487 | Each contributor grants you a non-exclusive, worldwide, royalty-free 488 | patent license under the contributor's essential patent claims, to 489 | make, use, sell, offer for sale, import and otherwise run, modify and 490 | propagate the contents of its contributor version. 491 | 492 | In the following three paragraphs, a "patent license" is any express 493 | agreement or commitment, however denominated, not to enforce a patent 494 | (such as an express permission to practice a patent or covenant not to 495 | sue for patent infringement). To "grant" such a patent license to a 496 | party means to make such an agreement or commitment not to enforce a 497 | patent against the party. 498 | 499 | If you convey a covered work, knowingly relying on a patent license, 500 | and the Corresponding Source of the work is not available for anyone 501 | to copy, free of charge and under the terms of this License, through a 502 | publicly available network server or other readily accessible means, 503 | then you must either (1) cause the Corresponding Source to be so 504 | available, or (2) arrange to deprive yourself of the benefit of the 505 | patent license for this particular work, or (3) arrange, in a manner 506 | consistent with the requirements of this License, to extend the patent 507 | license to downstream recipients. "Knowingly relying" means you have 508 | actual knowledge that, but for the patent license, your conveying the 509 | covered work in a country, or your recipient's use of the covered work 510 | in a country, would infringe one or more identifiable patents in that 511 | country that you have reason to believe are valid. 512 | 513 | If, pursuant to or in connection with a single transaction or 514 | arrangement, you convey, or propagate by procuring conveyance of, a 515 | covered work, and grant a patent license to some of the parties 516 | receiving the covered work authorizing them to use, propagate, modify 517 | or convey a specific copy of the covered work, then the patent license 518 | you grant is automatically extended to all recipients of the covered 519 | work and works based on it. 520 | 521 | A patent license is "discriminatory" if it does not include within 522 | the scope of its coverage, prohibits the exercise of, or is 523 | conditioned on the non-exercise of one or more of the rights that are 524 | specifically granted under this License. You may not convey a covered 525 | work if you are a party to an arrangement with a third party that is 526 | in the business of distributing software, under which you make payment 527 | to the third party based on the extent of your activity of conveying 528 | the work, and under which the third party grants, to any of the 529 | parties who would receive the covered work from you, a discriminatory 530 | patent license (a) in connection with copies of the covered work 531 | conveyed by you (or copies made from those copies), or (b) primarily 532 | for and in connection with specific products or compilations that 533 | contain the covered work, unless you entered into that arrangement, 534 | or that patent license was granted, prior to 28 March 2007. 535 | 536 | Nothing in this License shall be construed as excluding or limiting 537 | any implied license or other defenses to infringement that may 538 | otherwise be available to you under applicable patent law. 539 | 540 | 12. No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.MD: -------------------------------------------------------------------------------- 1 | `PNG2ICOjs` is a simple and small (1.31KB minified) Javascript ES6 module that convert PNG files into [ICO file](https://en.wikipedia.org/wiki/ICO_(file_format)). It should work on any Javascript environment including browsers. 2 | 3 | Was it helpful for you? Please consider a donation ❤️ [PayPal](https://paypal.me/datvm). 4 | 5 | # Installation & Usage 6 | 7 | Right now I haven't deployed the library to any CDN yet. Please grab the script files in [Release page](https://github.com/datvm/PNG2ICOjs/releases). It is available in `TypeScript` and `Javascript` file. 8 | 9 | To use the module, simply import it in your script: 10 | 11 | ```ts 12 | import { PngIcoConverter } from "../src/png2icojs.js"; 13 | 14 | // ... 15 | 16 | const inputs = [...files].map(file => ({ 17 | png: file 18 | })); 19 | 20 | // Result is a Blob 21 | const resultBlob1 = await converter.convertToBlobAsync(inputs); // Default mime type is image/x-icon 22 | const resultBlob2 = await converter.convertToBlobAsync(inputs, "image/your-own-mime"); 23 | 24 | // Result is an Uint8Array 25 | const resultArr = await converter.convertAsync(inputs); 26 | ``` 27 | 28 | You can check the demo at [the Demo page](https://png2icojs.lukevo.com/). 29 | 30 | # API 31 | 32 | The API exposes the `PngIcoConverter` class with many `protected` function so you can override them to your need. 33 | 34 | ## Methods 35 | 36 | `PngIcoConverter` exposes publicly the following methods: 37 | 38 | - `async convertToBlobAsync(inputs: IConvertInputItem[], mime = IcoMime): Promise;` 39 | 40 | Convert PNG files into a ICO Blob with optional mime type. Default: `image/x-icon`. 41 | 42 | - `async convertAsync(inputs: IConvertInputItem[]): Promise;` 43 | 44 | Convert PNG files into a `Uint8Array`. 45 | 46 | ## Input Options 47 | 48 | `IConvertInputItem` has the following properties: 49 | 50 | - `png`: the PNG file. Can be `Blob` or `ArrayBuffer`. 51 | 52 | - `bpp` (optional, default 0): Bits per pixel. For the header of the ICO image. In my experiments, most apps just ignore this value altogether and use the value from PNG image. 53 | 54 | - `ignoreSize` (optional, default false): Due to the `size` byte of ICO only has 1 byte, the maximum size of icons are 256px. However I have attemped to make an icon with 512px icon and it works so far. The library still throw an `Error` if your image size is more than 256px. Set this to `true` to ignore it. 55 | -------------------------------------------------------------------------------- /index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 11 | Convert PNG Files to ICO - PNG2ICOjs 12 | 13 | 14 | 15 | 22 | 23 | 24 | 25 |
26 |

Convert PNG to ICO

27 | 28 |
29 |

30 | You can use this web app to quickly make a ICO file from one or multiple PNG files.
31 | This is especially useful when you want to make favicon.ico file for your website. 32 |

33 | 34 |

35 | With this Javascript library, all processing happen in your browser. 36 | You do not need to upload any files to any server so it's fast and secure. 37 |

38 |
39 | 40 |
41 |
42 | 43 |
44 | 45 |
46 | 47 | 56 |
57 | 58 |

59 | 60 |

61 |
62 | 63 |
64 |
65 | 66 | 68 |
69 |
70 | 71 |
72 | 73 |

74 | This app is a demo for PNG2ICOjs. For feedback, contribution and donations please visit 75 | the Github page 76 |

77 |
78 | 79 | 80 | 81 | 82 | -------------------------------------------------------------------------------- /js/convert.js: -------------------------------------------------------------------------------- 1 | import { PngIcoConverter } from "../src/png2icojs.js"; 2 | 3 | const ErrorMessages = { 4 | "INVALID_IMAGE": "Cannot open the PNG file, please make sure it's a valid PNG file", 5 | "INVALID_SIZE": "The PNG file is larger than 256px. Please check Ignore Size to proceed anyway.", 6 | }; 7 | 8 | class ConvertApp { 9 | 10 | btnDownload = document.querySelector("#btn-download"); 11 | 12 | init() { 13 | document.querySelector(".frm-convert").addEventListener("submit", e => { 14 | e.preventDefault(); 15 | void this.convert(); 16 | }); 17 | 18 | document.querySelector(".frm-download").addEventListener("submit", e => { 19 | e.preventDefault(); 20 | void this.onDownload(); 21 | }); 22 | } 23 | 24 | onDownload() { 25 | if (!this.currBlob) { return; } 26 | 27 | const url = URL.createObjectURL(this.currBlob); 28 | const a = document.createElement("a"); 29 | a.href = url; 30 | 31 | const name = document.querySelector("#txt-name").value || "favicon.ico"; 32 | a.download = name; 33 | 34 | a.click(); 35 | } 36 | 37 | async convert() { 38 | const files = document.querySelector("#txt-files").files; 39 | if (!files.length) { 40 | alert("Please choose at least a file"); 41 | return; 42 | } 43 | 44 | const converter = new PngIcoConverter(); 45 | const ignoreSize = document.querySelector("#chk-ignore-size").checked; 46 | const inputs = [...files].map(file => ({ 47 | png: file, 48 | ignoreSize, 49 | })); 50 | 51 | try { 52 | this.currBlob = await converter.convertToBlobAsync(inputs); 53 | this.btnDownload.removeAttribute("disabled"); 54 | } catch (e) { 55 | console.error(e); 56 | 57 | const msg = e.message; 58 | if (msg) { 59 | alert("Error converting: " + (ErrorMessages[msg] ?? msg)); 60 | } 61 | } 62 | } 63 | 64 | } 65 | new ConvertApp().init(); -------------------------------------------------------------------------------- /src/png2icojs.js: -------------------------------------------------------------------------------- 1 | const MaxSize = 256; // 1 << 8 2 | const MaxFiles = 65536; // 1 << 16 3 | const FileHeaderSize = 6; 4 | const ImageHeaderSize = 16; 5 | const IcoMime = "image/x-icon"; 6 | export class PngIcoConverter { 7 | async convertToBlobAsync(inputs, mime = IcoMime) { 8 | const arr = await this.convertAsync(inputs); 9 | return new Blob([arr], { 10 | type: mime, 11 | }); 12 | } 13 | async convertAsync(inputs) { 14 | const inLen = inputs.length; 15 | if (inLen > MaxFiles) { 16 | throw new Error("TOO_MANY_FILES"); 17 | } 18 | // File Format: https://en.wikipedia.org/wiki/ICO_(file_format) 19 | // File Header + Image Header + Image Content 20 | const headersLen = FileHeaderSize + ImageHeaderSize * inLen; 21 | const totalLen = headersLen + this.sumInputLen(inputs); 22 | const arr = new Uint8Array(totalLen); 23 | // File Header 24 | arr.set([0, 0, 1, 0, ...this.to2Bytes(inLen)], 0); 25 | // Image Headers & Data 26 | let imgPos = headersLen; 27 | for (let i = 0; i < inputs.length; i++) { 28 | const currPos = FileHeaderSize + ImageHeaderSize * i, input = inputs[i]; 29 | const blob = this.toBlob(input.png), img = await this.loadImageAsync(blob), w = img.naturalWidth, h = img.naturalHeight; 30 | if (!input.ignoreSize && 31 | (w > MaxSize || h > MaxSize)) { 32 | throw new Error("INVALID_SIZE"); 33 | } 34 | // Header 35 | arr.set([ 36 | w > MaxSize ? 0 : w, 37 | h > MaxSize ? 0 : h, 38 | 0, 39 | 0, 40 | 0, 0, 41 | ...(input.bpp ? this.to2Bytes(input.bpp) : [0, 0]), 42 | ...this.to4Bytes(blob.size), 43 | ...this.to4Bytes(imgPos), 44 | ], currPos); 45 | // Image 46 | const buffer = input.png instanceof ArrayBuffer ? input.png : await input.png.arrayBuffer(); 47 | arr.set(new Uint8Array(buffer), imgPos); 48 | imgPos += blob.size; 49 | } 50 | return arr; 51 | } 52 | loadImageAsync(png) { 53 | return new Promise((r, rej) => { 54 | const img = new Image(); 55 | img.onload = () => r(img); 56 | img.onerror = () => rej("INVALID_IMAGE"); 57 | img.src = URL.createObjectURL(png); 58 | }); 59 | } 60 | toBlob(input, type = "image/png") { 61 | return input instanceof Blob ? input : new Blob([input], { 62 | type, 63 | }); 64 | } 65 | to2Bytes(n) { 66 | return [n & 255, (n >> 8) & 255]; 67 | } 68 | to4Bytes(n) { 69 | return [n & 255, (n >> 8) & 255, (n >> 16) & 255, (n >> 24) & 255]; 70 | } 71 | sumInputLen(inputs) { 72 | let total = 0; 73 | for (const i of inputs) { 74 | const png = i.png; 75 | if (png instanceof Blob) { 76 | total += png.size; 77 | } 78 | else { 79 | total += png.byteLength; 80 | } 81 | } 82 | return total; 83 | } 84 | } 85 | //# sourceMappingURL=png2icojs.js.map -------------------------------------------------------------------------------- /src/png2icojs.js.map: -------------------------------------------------------------------------------- 1 | {"version":3,"file":"png2icojs.js","sourceRoot":"","sources":["png2icojs.ts"],"names":[],"mappings":"AAAA,MAAM,OAAO,GAAG,GAAG,CAAC,CAAC,SAAS;AAC9B,MAAM,QAAQ,GAAG,KAAK,CAAC,CAAC,UAAU;AAElC,MAAM,cAAc,GAAG,CAAC,CAAC;AACzB,MAAM,eAAe,GAAG,EAAE,CAAC;AAE3B,MAAM,OAAO,GAAG,cAAc,CAAC;AAI/B,MAAM,OAAO,eAAe;IAExB,KAAK,CAAC,kBAAkB,CAAC,MAA2B,EAAE,IAAI,GAAG,OAAO;QAChE,MAAM,GAAG,GAAG,MAAM,IAAI,CAAC,YAAY,CAAC,MAAM,CAAC,CAAC;QAC5C,OAAO,IAAI,IAAI,CAAC,CAAC,GAAG,CAAC,EAAE;YACnB,IAAI,EAAE,IAAI;SACb,CAAC,CAAC;IACP,CAAC;IAED,KAAK,CAAC,YAAY,CAAC,MAA2B;QAC1C,MAAM,KAAK,GAAG,MAAM,CAAC,MAAM,CAAC;QAC5B,IAAI,KAAK,GAAG,QAAQ,EAAE;YAClB,MAAM,IAAI,KAAK,CAAC,gBAAgB,CAAC,CAAC;SACrC;QAED,+DAA+D;QAE/D,6CAA6C;QAC7C,MAAM,UAAU,GAAG,cAAc,GAAG,eAAe,GAAG,KAAK,CAAC;QAC5D,MAAM,QAAQ,GAAG,UAAU,GAAG,IAAI,CAAC,WAAW,CAAC,MAAM,CAAC,CAAC;QACvD,MAAM,GAAG,GAAG,IAAI,UAAU,CAAC,QAAQ,CAAC,CAAC;QAErC,cAAc;QACd,GAAG,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,CAAC,EAAE,CAAC,EAAE,GAAG,IAAI,CAAC,QAAQ,CAAC,KAAK,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;QAElD,uBAAuB;QACvB,IAAI,MAAM,GAAG,UAAU,CAAC;QACxB,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,MAAM,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE;YACpC,MACI,OAAO,GAAG,cAAc,GAAG,eAAe,GAAG,CAAC,EAC9C,KAAK,GAAG,MAAM,CAAC,CAAC,CAAC,CAAC;YAEtB,MACI,IAAI,GAAG,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,GAAG,CAAC,EAC7B,GAAG,GAAG,MAAM,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,EACrC,CAAC,GAAG,GAAG,CAAC,YAAY,EACpB,CAAC,GAAG,GAAG,CAAC,aAAa,CAAC;YAE1B,IAAI,CAAC,KAAK,CAAC,UAAU;gBACjB,CAAC,CAAC,GAAG,OAAO,IAAI,CAAC,GAAG,OAAO,CAAC,EAAE;gBAC9B,MAAM,IAAI,KAAK,CAAC,cAAc,CAAC,CAAC;aACnC;YAED,SAAS;YACT,GAAG,CAAC,GAAG,CAAC;gBACJ,CAAC,GAAG,OAAO,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;gBACnB,CAAC,GAAG,OAAO,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;gBACnB,CAAC;gBACD,CAAC;gBACD,CAAC,EAAE,CAAC;gBACJ,GAAG,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC,CAAC,IAAI,CAAC,QAAQ,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;gBAClD,GAAG,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,IAAI,CAAC;gBAC3B,GAAG,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC;aAC3B,EAAE,OAAO,CAAC,CAAC;YAEZ,QAAQ;YACR,MAAM,MAAM,GAAG,KAAK,CAAC,GAAG,YAAY,WAAW,CAAC,CAAC,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC,CAAC,MAAM,KAAK,CAAC,GAAG,CAAC,WAAW,EAAE,CAAC;YAC5F,GAAG,CAAC,GAAG,CAAC,IAAI,UAAU,CAAC,MAAM,CAAC,EAAE,MAAM,CAAC,CAAC;YAExC,MAAM,IAAI,IAAI,CAAC,IAAI,CAAC;SACvB;QAED,OAAO,GAAG,CAAC;IACf,CAAC;IAES,cAAc,CAAC,GAAS;QAC9B,OAAO,IAAI,OAAO,CAAmB,CAAC,CAAC,EAAE,GAAG,EAAE,EAAE;YAC5C,MAAM,GAAG,GAAG,IAAI,KAAK,EAAE,CAAC;YAExB,GAAG,CAAC,MAAM,GAAG,GAAG,EAAE,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC;YAE1B,GAAG,CAAC,OAAO,GAAG,GAAG,EAAE,CAAC,GAAG,CAAC,eAAe,CAAC,CAAC;YAEzC,GAAG,CAAC,GAAG,GAAG,GAAG,CAAC,eAAe,CAAC,GAAG,CAAC,CAAC;QACvC,CAAC,CAAC,CAAC;IACP,CAAC;IAES,MAAM,CAAC,KAAiB,EAAE,IAAI,GAAG,WAAW;QAClD,OAAO,KAAK,YAAY,IAAI,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,CAAC,IAAI,IAAI,CAAC,CAAC,KAAK,CAAC,EAAE;YACrD,IAAI;SACP,CAAC,CAAC;IACP,CAAC;IAES,QAAQ,CAAC,CAAS;QACxB,OAAO,CAAC,CAAC,GAAG,GAAG,EAAE,CAAC,CAAC,IAAI,CAAC,CAAC,GAAG,GAAG,CAAC,CAAC;IACrC,CAAC;IAES,QAAQ,CAAC,CAAS;QACxB,OAAO,CAAC,CAAC,GAAG,GAAG,EAAE,CAAC,CAAC,IAAI,CAAC,CAAC,GAAG,GAAG,EAAE,CAAC,CAAC,IAAI,EAAE,CAAC,GAAG,GAAG,EAAE,CAAC,CAAC,IAAI,EAAE,CAAC,GAAG,GAAG,CAAC,CAAC;IACvE,CAAC;IAES,WAAW,CAAC,MAA2B;QAC7C,IAAI,KAAK,GAAG,CAAC,CAAC;QACd,KAAK,MAAM,CAAC,IAAI,MAAM,EAAE;YACpB,MAAM,GAAG,GAAG,CAAC,CAAC,GAAG,CAAC;YAClB,IAAI,GAAG,YAAY,IAAI,EAAE;gBACrB,KAAK,IAAI,GAAG,CAAC,IAAI,CAAC;aACrB;iBAAM;gBACH,KAAK,IAAI,GAAG,CAAC,UAAU,CAAC;aAC3B;SACJ;QAED,OAAO,KAAK,CAAC;IACjB,CAAC;CAEJ"} -------------------------------------------------------------------------------- /src/png2icojs.min.js: -------------------------------------------------------------------------------- 1 | const MaxSize=256,MaxFiles=65536,FileHeaderSize=6,ImageHeaderSize=16,IcoMime="image/x-icon";export class PngIcoConverter{async convertToBlobAsync(e,t=IcoMime){const n=await this.convertAsync(e);return new Blob([n],{type:t})}async convertAsync(e){const t=e.length;if(t>MaxFiles)throw new Error("TOO_MANY_FILES");const n=FileHeaderSize+ImageHeaderSize*t,r=n+this.sumInputLen(e),o=new Uint8Array(r);o.set([0,0,1,0,...this.to2Bytes(t)],0);let i=n;for(let t=0;tMaxSize||l>MaxSize))throw new Error("INVALID_SIZE");o.set([c>MaxSize?0:c,l>MaxSize?0:l,0,0,0,0,...r.bpp?this.to2Bytes(r.bpp):[0,0],...this.to4Bytes(s.size),...this.to4Bytes(i)],n);const g=r.png instanceof ArrayBuffer?r.png:await r.png.arrayBuffer();o.set(new Uint8Array(g),i),i+=s.size}return o}loadImageAsync(e){return new Promise((t,n)=>{const r=new Image;r.onload=(()=>t(r)),r.onerror=(()=>n("INVALID_IMAGE")),r.src=URL.createObjectURL(e)})}toBlob(e,t="image/png"){return e instanceof Blob?e:new Blob([e],{type:t})}to2Bytes(e){return[255&e,e>>8&255]}to4Bytes(e){return[255&e,e>>8&255,e>>16&255,e>>24&255]}sumInputLen(e){let t=0;for(const n of e){const e=n.png;e instanceof Blob?t+=e.size:t+=e.byteLength}return t}} -------------------------------------------------------------------------------- /src/png2icojs.ts: -------------------------------------------------------------------------------- 1 | const MaxSize = 256; // 1 << 8 2 | const MaxFiles = 65536; // 1 << 16 3 | 4 | const FileHeaderSize = 6; 5 | const ImageHeaderSize = 16; 6 | 7 | const IcoMime = "image/x-icon"; 8 | 9 | export type BinaryLike = ArrayBuffer | Blob; 10 | 11 | export class PngIcoConverter { 12 | 13 | async convertToBlobAsync(inputs: IConvertInputItem[], mime = IcoMime) { 14 | const arr = await this.convertAsync(inputs); 15 | return new Blob([arr], { 16 | type: mime, 17 | }); 18 | } 19 | 20 | async convertAsync(inputs: IConvertInputItem[]) { 21 | const inLen = inputs.length; 22 | if (inLen > MaxFiles) { 23 | throw new Error("TOO_MANY_FILES"); 24 | } 25 | 26 | // File Format: https://en.wikipedia.org/wiki/ICO_(file_format) 27 | 28 | // File Header + Image Header + Image Content 29 | const headersLen = FileHeaderSize + ImageHeaderSize * inLen; 30 | const totalLen = headersLen + this.sumInputLen(inputs); 31 | const arr = new Uint8Array(totalLen); 32 | 33 | // File Header 34 | arr.set([0, 0, 1, 0, ...this.to2Bytes(inLen)], 0); 35 | 36 | // Image Headers & Data 37 | let imgPos = headersLen; 38 | for (let i = 0; i < inputs.length; i++) { 39 | const 40 | currPos = FileHeaderSize + ImageHeaderSize * i, 41 | input = inputs[i]; 42 | 43 | const 44 | blob = this.toBlob(input.png), 45 | img = await this.loadImageAsync(blob), 46 | w = img.naturalWidth, 47 | h = img.naturalHeight; 48 | 49 | if (!input.ignoreSize && 50 | (w > MaxSize || h > MaxSize)) { 51 | throw new Error("INVALID_SIZE"); 52 | } 53 | 54 | // Header 55 | arr.set([ 56 | w > MaxSize ? 0 : w, 57 | h > MaxSize ? 0 : h, 58 | 0, 59 | 0, 60 | 0, 0, 61 | ...(input.bpp ? this.to2Bytes(input.bpp) : [0, 0]), 62 | ...this.to4Bytes(blob.size), 63 | ...this.to4Bytes(imgPos), 64 | ], currPos); 65 | 66 | // Image 67 | const buffer = input.png instanceof ArrayBuffer ? input.png : await input.png.arrayBuffer(); 68 | arr.set(new Uint8Array(buffer), imgPos); 69 | 70 | imgPos += blob.size; 71 | } 72 | 73 | return arr; 74 | } 75 | 76 | protected loadImageAsync(png: Blob) { 77 | return new Promise((r, rej) => { 78 | const img = new Image(); 79 | 80 | img.onload = () => r(img); 81 | 82 | img.onerror = () => rej("INVALID_IMAGE"); 83 | 84 | img.src = URL.createObjectURL(png); 85 | }); 86 | } 87 | 88 | protected toBlob(input: BinaryLike, type = "image/png") { 89 | return input instanceof Blob ? input : new Blob([input], { 90 | type, 91 | }); 92 | } 93 | 94 | protected to2Bytes(n: number): number[] { 95 | return [n & 255, (n >> 8) & 255]; 96 | } 97 | 98 | protected to4Bytes(n: number): number[] { 99 | return [n & 255, (n >> 8) & 255, (n >> 16) & 255, (n >> 24) & 255]; 100 | } 101 | 102 | protected sumInputLen(inputs: IConvertInputItem[]) { 103 | let total = 0; 104 | for (const i of inputs) { 105 | const png = i.png; 106 | if (png instanceof Blob) { 107 | total += png.size; 108 | } else { 109 | total += png.byteLength; 110 | } 111 | } 112 | 113 | return total; 114 | } 115 | 116 | } 117 | 118 | export interface IConvertInputItem { 119 | 120 | png: BinaryLike, 121 | 122 | bpp?: number, 123 | ignoreSize?: number; 124 | 125 | } -------------------------------------------------------------------------------- /src/tsconfig.json: -------------------------------------------------------------------------------- 1 | { 2 | "compileOnSave": true, 3 | "compilerOptions": { 4 | "strict": true, 5 | "sourceMap": true, 6 | "noEmitOnError": true, 7 | "target": "ES2020", 8 | "module": "ES2020" 9 | } 10 | } --------------------------------------------------------------------------------