├── .gitignore ├── LICENSE.md ├── README.md ├── content ├── Delegate.qml ├── scripts │ └── script.js └── styles │ └── RoundProgressBarStyle.qml ├── images ├── box-shadow.png └── image-viewer-demo.gif ├── main.cpp ├── main.qml ├── package.pro ├── package.qmlproject └── package.qrc /.gitignore: -------------------------------------------------------------------------------- 1 | # Qt-es 2 | 3 | *.o 4 | /.qmake.cache 5 | /.qmake.stash 6 | *.pro.user 7 | *.pro.user.* 8 | *.qbs.user 9 | *.qbs.user.* 10 | *.moc 11 | moc_*.cpp 12 | qrc_*.cpp 13 | ui_*.h 14 | 15 | 16 | # QtCreator 17 | 18 | Makefile* 19 | *_build* 20 | *.autosave 21 | 22 | 23 | # QtCtreator Qml 24 | *.qmlproject.user 25 | *.qmlproject.user.* 26 | 27 | -------------------------------------------------------------------------------- /LICENSE.md: -------------------------------------------------------------------------------- 1 | ### GNU GENERAL PUBLIC LICENSE 2 | 3 | Version 3, 29 June 2007 4 | 5 | Copyright (C) 2007 Free Software Foundation, Inc. 6 | 7 | 8 | Everyone is permitted to copy and distribute verbatim copies of this 9 | license document, but changing it is not allowed. 10 | 11 | ### Preamble 12 | 13 | The GNU General Public License is a free, copyleft license for 14 | software and other kinds of works. 15 | 16 | The licenses for most software and other practical works are designed 17 | to take away your freedom to share and change the works. By contrast, 18 | the GNU General Public License is intended to guarantee your freedom 19 | to share and change all versions of a program--to make sure it remains 20 | free software for all its users. We, the Free Software Foundation, use 21 | the GNU General Public License for most of our software; it applies 22 | also to any other work released this way by its authors. You can apply 23 | it to your programs, too. 24 | 25 | When we speak of free software, we are referring to freedom, not 26 | price. Our General Public Licenses are designed to make sure that you 27 | have the freedom to distribute copies of free software (and charge for 28 | them if you wish), that you receive source code or can get it if you 29 | want it, that you can change the software or use pieces of it in new 30 | free programs, and that you know you can do these things. 31 | 32 | To protect your rights, we need to prevent others from denying you 33 | these rights or asking you to surrender the rights. Therefore, you 34 | have certain responsibilities if you distribute copies of the 35 | software, or if you modify it: responsibilities to respect the freedom 36 | of others. 37 | 38 | For example, if you distribute copies of such a program, whether 39 | gratis or for a fee, you must pass on to the recipients the same 40 | freedoms that you received. You must make sure that they, too, receive 41 | or can get the source code. And you must show them these terms so they 42 | know their rights. 43 | 44 | Developers that use the GNU GPL protect your rights with two steps: 45 | (1) assert copyright on the software, and (2) offer you this License 46 | giving you legal permission to copy, distribute and/or modify it. 47 | 48 | For the developers' and authors' protection, the GPL clearly explains 49 | that there is no warranty for this free software. For both users' and 50 | authors' sake, the GPL requires that modified versions be marked as 51 | changed, so that their problems will not be attributed erroneously to 52 | authors of previous versions. 53 | 54 | Some devices are designed to deny users access to install or run 55 | modified versions of the software inside them, although the 56 | manufacturer can do so. This is fundamentally incompatible with the 57 | aim of protecting users' freedom to change the software. The 58 | systematic pattern of such abuse occurs in the area of products for 59 | individuals to use, which is precisely where it is most unacceptable. 60 | Therefore, we have designed this version of the GPL to prohibit the 61 | practice for those products. If such problems arise substantially in 62 | other domains, we stand ready to extend this provision to those 63 | domains in future versions of the GPL, as needed to protect the 64 | freedom of users. 65 | 66 | Finally, every program is threatened constantly by software patents. 67 | States should not allow patents to restrict development and use of 68 | software on general-purpose computers, but in those that do, we wish 69 | to avoid the special danger that patents applied to a free program 70 | could make it effectively proprietary. To prevent this, the GPL 71 | assures that patents cannot be used to render the program non-free. 72 | 73 | The precise terms and conditions for copying, distribution and 74 | modification follow. 75 | 76 | ### TERMS AND CONDITIONS 77 | 78 | #### 0. Definitions. 79 | 80 | "This License" refers to version 3 of the GNU General Public License. 81 | 82 | "Copyright" also means copyright-like laws that apply to other kinds 83 | of works, such as semiconductor masks. 84 | 85 | "The Program" refers to any copyrightable work licensed under this 86 | License. Each licensee is addressed as "you". "Licensees" and 87 | "recipients" may be individuals or organizations. 88 | 89 | To "modify" a work means to copy from or adapt all or part of the work 90 | in a fashion requiring copyright permission, other than the making of 91 | an exact copy. The resulting work is called a "modified version" of 92 | the earlier work or a work "based on" the earlier work. 93 | 94 | A "covered work" means either the unmodified Program or a work based 95 | on the Program. 96 | 97 | To "propagate" a work means to do anything with it that, without 98 | permission, would make you directly or secondarily liable for 99 | infringement under applicable copyright law, except executing it on a 100 | computer or modifying a private copy. Propagation includes copying, 101 | distribution (with or without modification), making available to the 102 | public, and in some countries other activities as well. 103 | 104 | To "convey" a work means any kind of propagation that enables other 105 | parties to make or receive copies. Mere interaction with a user 106 | through a computer network, with no transfer of a copy, is not 107 | conveying. 108 | 109 | An interactive user interface displays "Appropriate Legal Notices" to 110 | the extent that it includes a convenient and prominently visible 111 | feature that (1) displays an appropriate copyright notice, and (2) 112 | tells the user that there is no warranty for the work (except to the 113 | extent that warranties are provided), that licensees may convey the 114 | work under this License, and how to view a copy of this License. If 115 | the interface presents a list of user commands or options, such as a 116 | menu, a prominent item in the list meets this criterion. 117 | 118 | #### 1. Source Code. 119 | 120 | The "source code" for a work means the preferred form of the work for 121 | making modifications to it. "Object code" means any non-source form of 122 | a work. 123 | 124 | A "Standard Interface" means an interface that either is an official 125 | standard defined by a recognized standards body, or, in the case of 126 | interfaces specified for a particular programming language, one that 127 | is widely used among developers working in that language. 128 | 129 | The "System Libraries" of an executable work include anything, other 130 | than the work as a whole, that (a) is included in the normal form of 131 | packaging a Major Component, but which is not part of that Major 132 | Component, and (b) serves only to enable use of the work with that 133 | Major Component, or to implement a Standard Interface for which an 134 | implementation is available to the public in source code form. A 135 | "Major Component", in this context, means a major essential component 136 | (kernel, window system, and so on) of the specific operating system 137 | (if any) on which the executable work runs, or a compiler used to 138 | produce the work, or an object code interpreter used to run it. 139 | 140 | The "Corresponding Source" for a work in object code form means all 141 | the source code needed to generate, install, and (for an executable 142 | work) run the object code and to modify the work, including scripts to 143 | control those activities. However, it does not include the work's 144 | System Libraries, or general-purpose tools or generally available free 145 | programs which are used unmodified in performing those activities but 146 | which are not part of the work. For example, Corresponding Source 147 | includes interface definition files associated with source files for 148 | the work, and the source code for shared libraries and dynamically 149 | linked subprograms that the work is specifically designed to require, 150 | such as by intimate data communication or control flow between those 151 | subprograms and other parts of the work. 152 | 153 | The Corresponding Source need not include anything that users can 154 | regenerate automatically from other parts of the Corresponding Source. 155 | 156 | The Corresponding Source for a work in source code form is that same 157 | work. 158 | 159 | #### 2. Basic Permissions. 160 | 161 | All rights granted under this License are granted for the term of 162 | copyright on the Program, and are irrevocable provided the stated 163 | conditions are met. This License explicitly affirms your unlimited 164 | permission to run the unmodified Program. The output from running a 165 | covered work is covered by this License only if the output, given its 166 | content, constitutes a covered work. This License acknowledges your 167 | rights of fair use or other equivalent, as provided by copyright law. 168 | 169 | You may make, run and propagate covered works that you do not convey, 170 | without conditions so long as your license otherwise remains in force. 171 | You may convey covered works to others for the sole purpose of having 172 | them make modifications exclusively for you, or provide you with 173 | facilities for running those works, provided that you comply with the 174 | terms of this License in conveying all material for which you do not 175 | control copyright. Those thus making or running the covered works for 176 | you must do so exclusively on your behalf, under your direction and 177 | control, on terms that prohibit them from making any copies of your 178 | copyrighted material outside their relationship with you. 179 | 180 | Conveying under any other circumstances is permitted solely under the 181 | conditions stated below. Sublicensing is not allowed; section 10 makes 182 | it unnecessary. 183 | 184 | #### 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 185 | 186 | No covered work shall be deemed part of an effective technological 187 | measure under any applicable law fulfilling obligations under article 188 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or 189 | similar laws prohibiting or restricting circumvention of such 190 | measures. 191 | 192 | When you convey a covered work, you waive any legal power to forbid 193 | circumvention of technological measures to the extent such 194 | circumvention is effected by exercising rights under this License with 195 | respect to the covered work, and you disclaim any intention to limit 196 | operation or modification of the work as a means of enforcing, against 197 | the work's users, your or third parties' legal rights to forbid 198 | circumvention of technological measures. 199 | 200 | #### 4. Conveying Verbatim Copies. 201 | 202 | You may convey verbatim copies of the Program's source code as you 203 | receive it, in any medium, provided that you conspicuously and 204 | appropriately publish on each copy an appropriate copyright notice; 205 | keep intact all notices stating that this License and any 206 | non-permissive terms added in accord with section 7 apply to the code; 207 | keep intact all notices of the absence of any warranty; and give all 208 | recipients a copy of this License along with the Program. 209 | 210 | You may charge any price or no price for each copy that you convey, 211 | and you may offer support or warranty protection for a fee. 212 | 213 | #### 5. Conveying Modified Source Versions. 214 | 215 | You may convey a work based on the Program, or the modifications to 216 | produce it from the Program, in the form of source code under the 217 | terms of section 4, provided that you also meet all of these 218 | conditions: 219 | 220 | - a) The work must carry prominent notices stating that you modified 221 | it, and giving a relevant date. 222 | - b) The work must carry prominent notices stating that it is 223 | released under this License and any conditions added under 224 | section 7. This requirement modifies the requirement in section 4 225 | to "keep intact all notices". 226 | - c) You must license the entire work, as a whole, under this 227 | License to anyone who comes into possession of a copy. This 228 | License will therefore apply, along with any applicable section 7 229 | additional terms, to the whole of the work, and all its parts, 230 | regardless of how they are packaged. This License gives no 231 | permission to license the work in any other way, but it does not 232 | invalidate such permission if you have separately received it. 233 | - d) If the work has interactive user interfaces, each must display 234 | Appropriate Legal Notices; however, if the Program has interactive 235 | interfaces that do not display Appropriate Legal Notices, your 236 | work need not make them do so. 237 | 238 | A compilation of a covered work with other separate and independent 239 | works, which are not by their nature extensions of the covered work, 240 | and which are not combined with it such as to form a larger program, 241 | in or on a volume of a storage or distribution medium, is called an 242 | "aggregate" if the compilation and its resulting copyright are not 243 | used to limit the access or legal rights of the compilation's users 244 | beyond what the individual works permit. Inclusion of a covered work 245 | in an aggregate does not cause this License to apply to the other 246 | parts of the aggregate. 247 | 248 | #### 6. Conveying Non-Source Forms. 249 | 250 | You may convey a covered work in object code form under the terms of 251 | sections 4 and 5, provided that you also convey the machine-readable 252 | Corresponding Source under the terms of this License, in one of these 253 | ways: 254 | 255 | - a) Convey the object code in, or embodied in, a physical product 256 | (including a physical distribution medium), accompanied by the 257 | Corresponding Source fixed on a durable physical medium 258 | customarily used for software interchange. 259 | - b) Convey the object code in, or embodied in, a physical product 260 | (including a physical distribution medium), accompanied by a 261 | written offer, valid for at least three years and valid for as 262 | long as you offer spare parts or customer support for that product 263 | model, to give anyone who possesses the object code either (1) a 264 | copy of the Corresponding Source for all the software in the 265 | product that is covered by this License, on a durable physical 266 | medium customarily used for software interchange, for a price no 267 | more than your reasonable cost of physically performing this 268 | conveying of source, or (2) access to copy the Corresponding 269 | Source from a network server at no charge. 270 | - c) Convey individual copies of the object code with a copy of the 271 | written offer to provide the Corresponding Source. This 272 | alternative is allowed only occasionally and noncommercially, and 273 | only if you received the object code with such an offer, in accord 274 | with subsection 6b. 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 | - e) Convey the object code using peer-to-peer transmission, 288 | provided you inform other peers where the object code and 289 | Corresponding Source of the work are being offered to the general 290 | public at no charge under subsection 6d. 291 | 292 | A separable portion of the object code, whose source code is excluded 293 | from the Corresponding Source as a System Library, need not be 294 | included in conveying the object code work. 295 | 296 | A "User Product" is either (1) a "consumer product", which means any 297 | tangible personal property which is normally used for personal, 298 | family, or household purposes, or (2) anything designed or sold for 299 | incorporation into a dwelling. In determining whether a product is a 300 | consumer product, doubtful cases shall be resolved in favor of 301 | coverage. For a particular product received by a particular user, 302 | "normally used" refers to a typical or common use of that class of 303 | product, regardless of the status of the particular user or of the way 304 | in which the particular user actually uses, or expects or is expected 305 | to use, the product. A product is a consumer product regardless of 306 | whether the product has substantial commercial, industrial or 307 | non-consumer uses, unless such uses represent the only significant 308 | 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 312 | install and execute modified versions of a covered work in that User 313 | Product from a modified version of its Corresponding Source. The 314 | information must suffice to ensure that the continued functioning of 315 | the modified object code is in no case prevented or interfered with 316 | solely because 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 331 | updates for a work that has been modified or installed by the 332 | recipient, or for the User Product in which it has been modified or 333 | installed. Access to a network may be denied when the modification 334 | itself materially and adversely affects the operation of the network 335 | or violates the rules and protocols for communication across the 336 | network. 337 | 338 | Corresponding Source conveyed, and Installation Information provided, 339 | in accord with this section must be in a format that is publicly 340 | documented (and with an implementation available to the public in 341 | source code form), and must require no special password or key for 342 | unpacking, reading or copying. 343 | 344 | #### 7. Additional Terms. 345 | 346 | "Additional permissions" are terms that supplement the terms of this 347 | License by making exceptions from one or more of its conditions. 348 | Additional permissions that are applicable to the entire Program shall 349 | be treated as though they were included in this License, to the extent 350 | that they are valid under applicable law. If additional permissions 351 | apply only to part of the Program, that part may be used separately 352 | under those permissions, but the entire Program remains governed by 353 | this License without regard to the additional permissions. 354 | 355 | When you convey a copy of a covered work, you may at your option 356 | remove any additional permissions from that copy, or from any part of 357 | it. (Additional permissions may be written to require their own 358 | removal in certain cases when you modify the work.) You may place 359 | additional permissions on material, added by you to a covered work, 360 | for which you have or can give appropriate copyright permission. 361 | 362 | Notwithstanding any other provision of this License, for material you 363 | add to a covered work, you may (if authorized by the copyright holders 364 | of that material) supplement the terms of this License with terms: 365 | 366 | - a) Disclaiming warranty or limiting liability differently from the 367 | terms of sections 15 and 16 of this License; or 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 | - c) Prohibiting misrepresentation of the origin of that material, 372 | or requiring that modified versions of such material be marked in 373 | reasonable ways as different from the original version; or 374 | - d) Limiting the use for publicity purposes of names of licensors 375 | or authors of the material; or 376 | - e) Declining to grant rights under trademark law for use of some 377 | trade names, trademarks, or service marks; or 378 | - f) Requiring indemnification of licensors and authors of that 379 | material by anyone who conveys the material (or modified versions 380 | of it) with contractual assumptions of liability to the recipient, 381 | for any liability that these contractual assumptions directly 382 | impose on those licensors and authors. 383 | 384 | All other non-permissive additional terms are considered "further 385 | restrictions" within the meaning of section 10. If the Program as you 386 | received it, or any part of it, contains a notice stating that it is 387 | governed by this License along with a term that is a further 388 | restriction, you may remove that term. If a license document contains 389 | a further restriction but permits relicensing or conveying under this 390 | License, you may add to a covered work material governed by the terms 391 | of that license document, provided that the further restriction does 392 | not survive such relicensing or conveying. 393 | 394 | If you add terms to a covered work in accord with this section, you 395 | must place, in the relevant source files, a statement of the 396 | additional terms that apply to those files, or a notice indicating 397 | where to find the applicable terms. 398 | 399 | Additional terms, permissive or non-permissive, may be stated in the 400 | form of a separately written license, or stated as exceptions; the 401 | above requirements apply either way. 402 | 403 | #### 8. Termination. 404 | 405 | You may not propagate or modify a covered work except as expressly 406 | provided under this License. Any attempt otherwise to propagate or 407 | modify it is void, and will automatically terminate your rights under 408 | this License (including any patent licenses granted under the third 409 | paragraph of section 11). 410 | 411 | However, if you cease all violation of this License, then your license 412 | from a particular copyright holder is reinstated (a) provisionally, 413 | unless and until the copyright holder explicitly and finally 414 | terminates your license, and (b) permanently, if the copyright holder 415 | fails to notify you of the violation by some reasonable means prior to 416 | 60 days after the cessation. 417 | 418 | Moreover, your license from a particular copyright holder is 419 | reinstated permanently if the copyright holder notifies you of the 420 | violation by some reasonable means, this is the first time you have 421 | received notice of violation of this License (for any work) from that 422 | copyright holder, and you cure the violation prior to 30 days after 423 | your receipt of the notice. 424 | 425 | Termination of your rights under this section does not terminate the 426 | licenses of parties who have received copies or rights from you under 427 | this License. If your rights have been terminated and not permanently 428 | reinstated, you do not qualify to receive new licenses for the same 429 | material under section 10. 430 | 431 | #### 9. Acceptance Not Required for Having Copies. 432 | 433 | You are not required to accept this License in order to receive or run 434 | a copy of the Program. Ancillary propagation of a covered work 435 | occurring solely as a consequence of using peer-to-peer transmission 436 | to receive a copy likewise does not require acceptance. However, 437 | nothing other than this License grants you permission to propagate or 438 | modify any covered work. These actions infringe copyright if you do 439 | not accept this License. Therefore, by modifying or propagating a 440 | covered work, you indicate your acceptance of this License to do so. 441 | 442 | #### 10. Automatic Licensing of Downstream Recipients. 443 | 444 | Each time you convey a covered work, the recipient automatically 445 | receives a license from the original licensors, to run, modify and 446 | propagate that work, subject to this License. You are not responsible 447 | for enforcing compliance by third parties with this License. 448 | 449 | An "entity transaction" is a transaction transferring control of an 450 | organization, or substantially all assets of one, or subdividing an 451 | organization, or merging organizations. If propagation of a covered 452 | work results from an entity transaction, each party to that 453 | transaction who receives a copy of the work also receives whatever 454 | licenses to the work the party's predecessor in interest had or could 455 | give under the previous paragraph, plus a right to possession of the 456 | Corresponding Source of the work from the predecessor in interest, if 457 | the predecessor has it or can get it with reasonable efforts. 458 | 459 | You may not impose any further restrictions on the exercise of the 460 | rights granted or affirmed under this License. For example, you may 461 | not impose a license fee, royalty, or other charge for exercise of 462 | rights granted under this License, and you may not initiate litigation 463 | (including a cross-claim or counterclaim in a lawsuit) alleging that 464 | any patent claim is infringed by making, using, selling, offering for 465 | sale, or importing the Program or any portion of it. 466 | 467 | #### 11. Patents. 468 | 469 | A "contributor" is a copyright holder who authorizes use under this 470 | License of the Program or a work on which the Program is based. The 471 | work thus licensed is called the contributor's "contributor version". 472 | 473 | A contributor's "essential patent claims" are all patent claims owned 474 | or controlled by the contributor, whether already acquired or 475 | hereafter acquired, that would be infringed by some manner, permitted 476 | by this License, of making, using, or selling its contributor version, 477 | but do not include claims that would be infringed only as a 478 | consequence of further modification of the contributor version. For 479 | purposes of this definition, "control" includes the right to grant 480 | patent sublicenses in a manner consistent with the requirements of 481 | this License. 482 | 483 | Each contributor grants you a non-exclusive, worldwide, royalty-free 484 | patent license under the contributor's essential patent claims, to 485 | make, use, sell, offer for sale, import and otherwise run, modify and 486 | propagate the contents of its contributor version. 487 | 488 | In the following three paragraphs, a "patent license" is any express 489 | agreement or commitment, however denominated, not to enforce a patent 490 | (such as an express permission to practice a patent or covenant not to 491 | sue for patent infringement). To "grant" such a patent license to a 492 | party means to make such an agreement or commitment not to enforce a 493 | patent against the party. 494 | 495 | If you convey a covered work, knowingly relying on a patent license, 496 | and the Corresponding Source of the work is not available for anyone 497 | to copy, free of charge and under the terms of this License, through a 498 | publicly available network server or other readily accessible means, 499 | then you must either (1) cause the Corresponding Source to be so 500 | available, or (2) arrange to deprive yourself of the benefit of the 501 | patent license for this particular work, or (3) arrange, in a manner 502 | consistent with the requirements of this License, to extend the patent 503 | license to downstream recipients. "Knowingly relying" means you have 504 | actual knowledge that, but for the patent license, your conveying the 505 | covered work in a country, or your recipient's use of the covered work 506 | in a country, would infringe one or more identifiable patents in that 507 | country that you have reason to believe are valid. 508 | 509 | If, pursuant to or in connection with a single transaction or 510 | arrangement, you convey, or propagate by procuring conveyance of, a 511 | covered work, and grant a patent license to some of the parties 512 | receiving the covered work authorizing them to use, propagate, modify 513 | or convey a specific copy of the covered work, then the patent license 514 | you grant is automatically extended to all recipients of the covered 515 | work and works based on it. 516 | 517 | A patent license is "discriminatory" if it does not include within the 518 | scope of its coverage, prohibits the exercise of, or is conditioned on 519 | the non-exercise of one or more of the rights that are specifically 520 | granted under this License. You may not convey a covered work if you 521 | are a party to an arrangement with a third party that is in the 522 | business of distributing software, under which you make payment to the 523 | third party based on the extent of your activity of conveying the 524 | work, and under which the third party grants, to any of the parties 525 | who would receive the covered work from you, a discriminatory patent 526 | license (a) in connection with copies of the covered work conveyed by 527 | you (or copies made from those copies), or (b) primarily for and in 528 | connection with specific products or compilations that contain the 529 | covered work, unless you entered into that arrangement, or that patent 530 | license was granted, prior to 28 March 2007. 531 | 532 | Nothing in this License shall be construed as excluding or limiting 533 | any implied license or other defenses to infringement that may 534 | otherwise be available to you under applicable patent law. 535 | 536 | #### 12. No Surrender of Others' Freedom. 537 | 538 | If conditions are imposed on you (whether by court order, agreement or 539 | otherwise) that contradict the conditions of this License, they do not 540 | excuse you from the conditions of this License. If you cannot convey a 541 | covered work so as to satisfy simultaneously your obligations under 542 | this License and any other pertinent obligations, then as a 543 | consequence you may not convey it at all. For example, if you agree to 544 | terms that obligate you to collect a royalty for further conveying 545 | from those to whom you convey the Program, the only way you could 546 | satisfy both those terms and this License would be to refrain entirely 547 | from conveying the Program. 548 | 549 | #### 13. Use with the GNU Affero General Public License. 550 | 551 | Notwithstanding any other provision of this License, you have 552 | permission to link or combine any covered work with a work licensed 553 | under version 3 of the GNU Affero General Public License into a single 554 | combined work, and to convey the resulting work. The terms of this 555 | License will continue to apply to the part which is the covered work, 556 | but the special requirements of the GNU Affero General Public License, 557 | section 13, concerning interaction through a network will apply to the 558 | combination as such. 559 | 560 | #### 14. Revised Versions of this License. 561 | 562 | The Free Software Foundation may publish revised and/or new versions 563 | of the GNU General Public License from time to time. Such new versions 564 | will be similar in spirit to the present version, but may differ in 565 | detail to address new problems or concerns. 566 | 567 | Each version is given a distinguishing version number. If the Program 568 | specifies that a certain numbered version of the GNU General Public 569 | License "or any later version" applies to it, you have the option of 570 | following the terms and conditions either of that numbered version or 571 | of any later version published by the Free Software Foundation. If the 572 | Program does not specify a version number of the GNU General Public 573 | License, you may choose any version ever published by the Free 574 | Software Foundation. 575 | 576 | If the Program specifies that a proxy can decide which future versions 577 | of the GNU General Public License can be used, that proxy's public 578 | statement of acceptance of a version permanently authorizes you to 579 | choose that version for the Program. 580 | 581 | Later license versions may give you additional or different 582 | permissions. However, no additional obligations are imposed on any 583 | author or copyright holder as a result of your choosing to follow a 584 | later version. 585 | 586 | #### 15. Disclaimer of Warranty. 587 | 588 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 589 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 590 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT 591 | WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT 592 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 593 | A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND 594 | PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE 595 | DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR 596 | CORRECTION. 597 | 598 | #### 16. Limitation of Liability. 599 | 600 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 601 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR 602 | CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 603 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES 604 | ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT 605 | NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR 606 | LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM 607 | TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER 608 | PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 609 | 610 | #### 17. Interpretation of Sections 15 and 16. 611 | 612 | If the disclaimer of warranty and limitation of liability provided 613 | above cannot be given local legal effect according to their terms, 614 | reviewing courts shall apply local law that most closely approximates 615 | an absolute waiver of all civil liability in connection with the 616 | Program, unless a warranty or assumption of liability accompanies a 617 | copy of the Program in return for a fee. 618 | 619 | END OF TERMS AND CONDITIONS 620 | 621 | ### How to Apply These Terms to Your New Programs 622 | 623 | If you develop a new program, and you want it to be of the greatest 624 | possible use to the public, the best way to achieve this is to make it 625 | free software which everyone can redistribute and change under these 626 | terms. 627 | 628 | To do so, attach the following notices to the program. It is safest to 629 | attach them to the start of each source file to most effectively state 630 | the exclusion of warranty; and each file should have at least the 631 | "copyright" line and a pointer to where the full notice is found. 632 | 633 | 634 | Copyright (C) 635 | 636 | This program is free software: you can redistribute it and/or modify 637 | it under the terms of the GNU General Public License as published by 638 | the Free Software Foundation, either version 3 of the License, or 639 | (at your option) any later version. 640 | 641 | This program is distributed in the hope that it will be useful, 642 | but WITHOUT ANY WARRANTY; without even the implied warranty of 643 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 644 | GNU General Public License for more details. 645 | 646 | You should have received a copy of the GNU General Public License 647 | along with this program. If not, see . 648 | 649 | Also add information on how to contact you by electronic and paper 650 | 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 661 | appropriate parts of the General Public License. Of course, your 662 | program's commands might be different; for a GUI interface, you would 663 | use an "about box". 664 | 665 | You should also get your employer (if you work as a programmer) or 666 | school, if any, to sign a "copyright disclaimer" for the program, if 667 | necessary. For more information on this, and how to apply and follow 668 | the GNU GPL, see . 669 | 670 | The GNU General Public License does not permit incorporating your 671 | program into proprietary programs. If your program is a subroutine 672 | library, you may consider it more useful to permit linking proprietary 673 | applications with the library. If this is what you want to do, use the 674 | GNU Lesser General Public License instead of this License. But first, 675 | please read . -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # QML Image Viewer 2 | 3 | [![License: GPL v3](https://img.shields.io/badge/License-GPL%20v3-blue.svg)](http://www.gnu.org/licenses/gpl-3.0) 4 | 7 | 8 | The main aim of Image Viewer project is demonstration of [Package QML type](http://doc.qt.io/qt-5/qml-package.html) usage. 9 | 10 | ![alt tag](https://github.com/buzzySmile/qml-image-viewer/blob/master/images/image-viewer-demo.gif?raw=true) 11 | 12 | Official documentation gives quite poor information and not so clear vision of concept. 13 | Otherwise [Photo Viewer Demo](http://doc.qt.io/qt-5/qtquick-demos-photoviewer-example.html) represents much more advanced usage and not so easy for understanding and code reusage. 14 | 15 | ## Anyway you may find following Qt Quick features: 16 | * Using Qt Quick Controls to create an application window and controls. 17 | * Using .pro(_Qt classic_) and/or .qmlproject(_Qt Quick UI_) project file. 18 | * Using the Package type with a [DelegateModel](http://doc.qt.io/qt-5/qml-qtqml-models-delegatemodel.html) to provide delegates with a shared context to multiple views. 19 | * Providing feedback to users while data is loading with [ProgressBar type](http://doc.qt.io/qt-5/qml-qtquick-controls-progressbar.html) 20 | * Using [ProgressBarStyle type](http://doc.qt.io/qt-5/qml-qtquick-controls-styles-progressbarstyle.html) for ProgressBar customization. 21 | -------------------------------------------------------------------------------- /content/Delegate.qml: -------------------------------------------------------------------------------- 1 | import QtQuick 2.5 2 | import QtQuick.Controls 1.4 3 | import "scripts/script.js" as Script 4 | import "styles" as Style 5 | 6 | Package { 7 | 8 | Item { Package.name: 'grid' 9 | id: gridDelegate 10 | width: root.width; height: root.height 11 | } 12 | Item { Package.name: 'list' 13 | id: fullDelegate 14 | width: root.width; height: root.height 15 | } 16 | 17 | // =================================================== 18 | 19 | Item { 20 | width: 160; height: 153 21 | 22 | Item { 23 | id: photoWrapper 24 | 25 | x: 0; y: 0 26 | width: 140; height: 133 27 | 28 | BorderImage { 29 | anchors.fill: placeHolder 30 | anchors { 31 | leftMargin: -6 32 | topMargin: -6 33 | rightMargin: -8 34 | bottomMargin: -8 35 | } 36 | source: '../images/box-shadow.png' 37 | border { 38 | top: 10 39 | left: 10 40 | right: 10 41 | bottom: 10 42 | } 43 | } 44 | Rectangle { 45 | id: placeHolder 46 | 47 | property int w: width0 48 | property int h: height0 49 | property double s: Script.calculateScale(w, h, photoWrapper.width) 50 | 51 | color: 'white' 52 | anchors.centerIn: parent 53 | antialiasing: true 54 | width: w * s; height: h * s; z: -1 55 | visible: originalImage.status != Image.Ready 56 | Rectangle { 57 | color: "#878787" 58 | antialiasing: true 59 | anchors { 60 | fill: parent 61 | topMargin: 3 62 | bottomMargin: 3 63 | leftMargin: 3 64 | rightMargin: 3 65 | } 66 | } 67 | } 68 | 69 | BusyIndicator { 70 | anchors.centerIn: parent 71 | running: originalImage.status != Image.Ready 72 | } 73 | Image { 74 | id: originalImage 75 | 76 | anchors.fill: photoWrapper 77 | antialiasing: true 78 | source: url 79 | cache: false 80 | fillMode: Image.PreserveAspectFit 81 | } 82 | ProgressBar { 83 | anchors.centerIn: parent 84 | visible: hqImage.status == Image.Loading 85 | value: hqImage.progress 86 | style: Style.RoundProgressBarStyle {} 87 | } 88 | Image { 89 | id: hqImage 90 | 91 | anchors.fill: photoWrapper 92 | antialiasing: true 93 | source: "" 94 | visible: false 95 | cache: false 96 | fillMode: Image.PreserveAspectFit 97 | 98 | onSourceChanged: { 99 | console.log("hqImage source:", source) 100 | } 101 | } 102 | 103 | Binding { 104 | target: root 105 | property: "downloadProgress" 106 | value: hqImage.progress 107 | when: fullDelegate.ListView.isCurrentItem 108 | } 109 | Binding { 110 | target: root 111 | property: "imageLoading" 112 | value: (hqImage.status == Image.Loading) ? 1 : 0; 113 | when: fullDelegate.ListView.isCurrentItem 114 | } 115 | MouseArea { 116 | anchors.fill: photoWrapper 117 | onClicked: { 118 | gridDelegate.GridView.view.currentIndex = index; 119 | if (root.state == 'inGrid') { 120 | root.state = 'fullscreen' 121 | } else { 122 | root.state = 'inGrid' 123 | } 124 | } 125 | } 126 | 127 | states: [ 128 | State { 129 | name: 'inGrid'; when: root.state == 'inGrid' || root.state == '' 130 | ParentChange { 131 | target: photoWrapper 132 | parent: gridDelegate; 133 | x: 10; y: 0 134 | } 135 | }, 136 | State { 137 | name: 'fullscreen'; when: root.state == 'fullscreen' 138 | ParentChange { 139 | target: photoWrapper 140 | parent: fullDelegate 141 | x: 0; y: 0; 142 | width: root.width; height: root.height 143 | } 144 | PropertyChanges { 145 | target: hqImage 146 | source: gridDelegate.GridView.isCurrentItem 147 | ? url 148 | : "" 149 | visible: true 150 | } 151 | } 152 | ] 153 | 154 | onStateChanged: { 155 | if(state == 'fullscreen' && gridDelegate.GridView.isCurrentItem) 156 | console.log("State changed to 'fullscreen' for '"+display+"' record") 157 | } 158 | 159 | transitions: [ 160 | Transition { 161 | from: 'inGrid'; to: 'fullscreen' 162 | SequentialAnimation { 163 | PauseAnimation { 164 | duration: gridDelegate.GridView.isCurrentItem ? 0 : 600 165 | } 166 | ParentAnimation { 167 | target: photoWrapper; via: foreground 168 | NumberAnimation { 169 | targets: photoWrapper 170 | properties: 'x,y,width,height,opacity' 171 | duration: gridDelegate.GridView.isCurrentItem ? 600 : 1 172 | easing.type: Easing.OutQuart 173 | } 174 | } 175 | } 176 | }, 177 | Transition { 178 | from: 'fullscreen'; to: 'inGrid' 179 | ParentAnimation { 180 | target: photoWrapper; via: foreground 181 | NumberAnimation { 182 | targets: photoWrapper 183 | properties: 'x,y,width,height,opacity' 184 | duration: gridDelegate.GridView.isCurrentItem ? 600 : 1 185 | easing.type: Easing.OutQuart 186 | } 187 | } 188 | } 189 | ] 190 | } 191 | } 192 | } 193 | -------------------------------------------------------------------------------- /content/scripts/script.js: -------------------------------------------------------------------------------- 1 | .pragma library 2 | 3 | function calculateScale(width, height, cellSize) { 4 | var widthScale = (cellSize * 1.0) / width 5 | var heightScale = (cellSize * 1.0) / height 6 | var scale = 0 7 | 8 | if (widthScale <= heightScale) { 9 | scale = widthScale; 10 | } else if (heightScale < widthScale) { 11 | scale = heightScale; 12 | } 13 | return scale; 14 | } 15 | -------------------------------------------------------------------------------- /content/styles/RoundProgressBarStyle.qml: -------------------------------------------------------------------------------- 1 | import QtQuick 2.5 2 | import QtQuick.Controls.Styles 1.4 3 | import QtGraphicalEffects 1.0 4 | 5 | ProgressBarStyle 6 | { 7 | panel : Rectangle { 8 | color: "transparent" 9 | implicitWidth: 80 10 | implicitHeight: implicitWidth 11 | 12 | Rectangle 13 | { 14 | id: outerRing 15 | z: 0 16 | anchors.fill: parent 17 | radius: Math.max(width, height) / 2 18 | color: "transparent" 19 | border.color: "gray" 20 | border.width: 8 21 | } 22 | 23 | Rectangle 24 | { 25 | id: innerRing 26 | z: 1 27 | anchors.fill: parent 28 | anchors.margins: (outerRing.border.width - border.width) / 2 29 | radius: outerRing.radius 30 | color: "transparent" 31 | border.color: "darkgray" 32 | border.width: 4 33 | 34 | ConicalGradient 35 | { 36 | source: innerRing 37 | anchors.fill: parent 38 | gradient: Gradient 39 | { 40 | GradientStop { position: 0.00; color: "white" } 41 | GradientStop { position: control.value; color: "white" } 42 | GradientStop { position: control.value + 0.01; color: "transparent" } 43 | GradientStop { position: 1.00; color: "transparent" } 44 | } 45 | } 46 | } 47 | 48 | Text 49 | { 50 | id: progressLabel 51 | anchors.centerIn: parent 52 | color: "gray" 53 | text: (control.value * 100).toFixed() + "%" 54 | } 55 | } 56 | } 57 | -------------------------------------------------------------------------------- /images/box-shadow.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/buzzySmile/qml-image-viewer/0f99d8de533ca7366aefb07b613b326ed392ee0f/images/box-shadow.png -------------------------------------------------------------------------------- /images/image-viewer-demo.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/buzzySmile/qml-image-viewer/0f99d8de533ca7366aefb07b613b326ed392ee0f/images/image-viewer-demo.gif -------------------------------------------------------------------------------- /main.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | 5 | int main(int argc, char *argv[]) 6 | { 7 | QApplication app(argc, argv); 8 | 9 | QQmlApplicationEngine engine; 10 | engine.load(QUrl(QStringLiteral("qrc:///main.qml"))); 11 | 12 | return app.exec(); 13 | } 14 | -------------------------------------------------------------------------------- /main.qml: -------------------------------------------------------------------------------- 1 | import QtQuick 2.5 2 | import QtQuick.Controls 1.4 3 | import QtQml.Models 2.2 4 | import "content" 5 | 6 | ApplicationWindow { 7 | id: mainWindow 8 | 9 | width: photosGridView.cellWidth*3 10 | height: photosGridView.cellHeight*3 11 | visible: true 12 | 13 | Rectangle { 14 | id: root 15 | anchors.fill: parent 16 | 17 | property real downloadProgress: 0 18 | property bool imageLoading: false 19 | 20 | ListModel { 21 | id: myModel 22 | ListElement { display: "One"; width0: 280; height0: 180; 23 | url: "http://static.simpledesktops.com/uploads/desktops/2016/07/07/b3d9be-background.png"} 24 | ListElement { display: "Two"; width0: 280; height0: 180; 25 | url: "http://static.simpledesktops.com/uploads/desktops/2016/04/26/Dots.png"} 26 | ListElement { display: "Three"; width0: 280; height0: 180; 27 | url: "http://static.simpledesktops.com/uploads/desktops/2016/02/08/sunRising.png" } 28 | ListElement { display: "Four"; width0: 280; height0: 180; 29 | url: "http://static.simpledesktops.com/uploads/desktops/2015/11/18/garlic_siracha.png" } 30 | ListElement { display: "Five"; width0: 280; height0: 180; 31 | url: "http://static.simpledesktops.com/uploads/desktops/2015/09/23/Take_OFF.png" } 32 | ListElement { display: "Six"; width0: 280; height0: 180; 33 | url: "http://static.simpledesktops.com/uploads/desktops/2015/08/20/Sunset_by_Banned.png" } 34 | ListElement { display: "Seven"; width0: 280; height0: 180; 35 | url: "http://static.simpledesktops.com/uploads/desktops/2015/07/28/splash7.png" } 36 | ListElement { display: "Eight"; width0: 280; height0: 180; 37 | url: "http://static.simpledesktops.com/uploads/desktops/2015/06/26/Overlap.png" } 38 | } 39 | 40 | DelegateModel { 41 | id: visualModel 42 | delegate: Delegate {} 43 | model: myModel 44 | } 45 | 46 | GridView { 47 | id: photosGridView 48 | 49 | x: 0; y: 0; cellWidth: 160; cellHeight: 153 50 | width: root.width; height: root.height - progressBar.height 51 | model: visualModel.parts.grid 52 | interactive: true 53 | /*Rectangle { 54 | anchors.centerIn: parent 55 | width: parent.width-10; height: parent.height-10 56 | color: "transparent" 57 | border.color: "red" 58 | border.width: 5 59 | }*/ 60 | onCurrentIndexChanged: { 61 | photosListView.positionViewAtIndex(currentIndex, ListView.Contain) 62 | } 63 | } 64 | 65 | ListView { 66 | id: photosListView; 67 | 68 | width: root.width; height: root.height - progressBar.height 69 | orientation: Qt.Horizontal 70 | model: visualModel.parts.list; 71 | interactive: false 72 | 73 | highlightRangeMode: ListView.StrictlyEnforceRange 74 | snapMode: ListView.SnapOneItem 75 | /*Rectangle { 76 | anchors.centerIn: parent 77 | width: parent.width-10; height: parent.height-10 78 | color: "transparent" 79 | border.color: "green" 80 | border.width: 5 81 | }*/ 82 | onCurrentIndexChanged: { 83 | photosGridView.positionViewAtIndex(currentIndex, GridView.Contain) 84 | } 85 | } 86 | 87 | state: 'inGrid' 88 | states: [ 89 | State { 90 | name: 'inGrid' 91 | PropertyChanges { target: photosGridView; interactive: true; visible: true } 92 | PropertyChanges { target: photosListView; visible: false } 93 | }, 94 | State { 95 | name: 'fullscreen'; extend: 'inGrid' 96 | PropertyChanges { target: photosGridView; interactive: false; visible: false } 97 | PropertyChanges { target: photosListView; visible: true } 98 | } 99 | ] 100 | 101 | MouseArea { 102 | anchors.fill: root 103 | z: root.state == 'inGrid' ? -1 : 0 104 | onClicked: root.state = 'inGrid' 105 | } 106 | } 107 | 108 | Item { 109 | id: foreground 110 | anchors.fill: parent 111 | } 112 | 113 | ProgressBar { 114 | id: progressBar 115 | 116 | width: parent.width; height: 15 117 | anchors.bottom: parent.bottom 118 | opacity: root.imageLoading 119 | 120 | value: root.downloadProgress 121 | } 122 | } 123 | -------------------------------------------------------------------------------- /package.pro: -------------------------------------------------------------------------------- 1 | TEMPLATE = app 2 | TARGET = package 3 | 4 | QT += qml quick widgets network 5 | 6 | SOURCES += main.cpp 7 | 8 | lupdate_only{ 9 | SOURCES = *.qml \ 10 | content/*.qml \ 11 | content/styles/*.qml 12 | content/scripts/*.js 13 | } 14 | 15 | RESOURCES += package.qrc 16 | 17 | # DEV DEPLOYMENT 18 | OBJECTS_DIR = $$OUT_PWD/_build/obj 19 | MOC_DIR = $$OUT_PWD/_build/moc 20 | RCC_DIR = $$OUT_PWD/_build/rcc 21 | UI_DIR = $$OUT_PWD/_build/ui 22 | -------------------------------------------------------------------------------- /package.qmlproject: -------------------------------------------------------------------------------- 1 | import QmlProject 1.1 2 | 3 | Project { 4 | mainFile: "main.qml" 5 | 6 | /* Include .qml, .js, and image files from current directory and subdirectories */ 7 | QmlFiles { 8 | directory: "." 9 | } 10 | JavaScriptFiles { 11 | directory: "." 12 | } 13 | ImageFiles { 14 | directory: "." 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /package.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | images/box-shadow.png 4 | content/scripts/script.js 5 | content/styles/RoundProgressBarStyle.qml 6 | content/Delegate.qml 7 | main.qml 8 | 9 | 10 | --------------------------------------------------------------------------------