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<?php |
<?php |
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//-------------------------------------------------------------------------------- |
//------------------------------------------------------------------------------------------------- |
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//thumbnails_make.php, v0.1a, Copyright David T. Ashley, 2016 |
//$Header$ |
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//-------------------------------------------------------------------------------- |
//------------------------------------------------------------------------------------------------- |
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//------------------------------------------------------------------------------------------------- |
//This source code and any program in which it is compiled/used is provided under the MIT |
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//Copyright 2016 David T. Ashley |
//LICENSE (full license text below). |
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//------------------------------------------------------------------------------------------------- |
//------------------------------------------------------------------------------------------------- |
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//This source code and any program in which it is compiled/used is provided under the GNU GENERAL |
//Copyright (c) 2016 David T. Ashley |
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//PUBLIC LICENSE, Version 3, full license text below. |
// |
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//------------------------------------------------------------------------------------------------- |
//Permission is hereby granted, free of charge, to any person obtaining a copy of this software and |
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// GNU GENERAL PUBLIC LICENSE |
//associated documentation files (the "Software"), to deal in the Software without restriction, |
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// Version 3, 29 June 2007 |
//including without limitation the rights to use, copy, modify, merge, publish, distribute, |
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// |
//sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
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// Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> |
//furnished to do so, subject to the following conditions: |
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// Everyone is permitted to copy and distribute verbatim copies |
// |
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// of this license document, but changing it is not allowed. |
//The above copyright notice and this permission notice shall be included in all copies or |
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// |
//substantial portions of the Software. |
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// Preamble |
// |
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// |
//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT |
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// The GNU General Public License is a free, copyleft license for |
//NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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//software and other kinds of works. |
//NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
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// |
//DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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// The licenses for most software and other practical works are designed |
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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//to take away your freedom to share and change the works. By contrast, |
//------------------------------------------------------------------------------------------------- |
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//the GNU General Public License is intended to guarantee your freedom to |
//-------------------------------------------------------------------------------- |
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//share and change all versions of a program--to make sure it remains free |
//C O N F I G U R A T I O N |
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//software for all its users. We, the Free Software Foundation, use the |
//-------------------------------------------------------------------------------- |
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//GNU General Public License for most of our software; it applies also to |
//Configuration switch combinations were not tested. E-mail me any program |
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//any other work released this way by its authors. You can apply it to |
//corrections (dashley@gmail.com). |
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//your programs, too. |
define ("CFG_PROGNAME", "thumbnails_make.php"); |
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// |
//Number of characters per line preferred for console output. |
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// When we speak of free software, we are referring to freedom, not |
define ("CFG_CONSOLE_STD_LINE_LEN", 78); |
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//price. Our General Public Licenses are designed to make sure that you |
//Number of characters per line preferred for console output. |
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//have the freedom to distribute copies of free software (and charge for |
define ("CFG_THUMBNAIL_DIMENSION_MAX", 125); |
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//them if you wish), that you receive source code or can get it if you |
//The maximum dimension of the created thumbnails. Thumbnails are sized so |
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//want it, that you can change the software or use pieces of it in new |
//that the longest dimension is this many pixels. |
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//free programs, and that you know you can do these things. |
define ("CFG_THUMBNAIL_BEVELED_BORDER_WIDTH", 4); |
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// |
//The number of pixels that the thumbnail beveled borders should be. |
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// To protect your rights, we need to prevent others from denying you |
define ("CFG_THUMBNAIL_FILENAME_SUFFIX", "_small"); |
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//these rights or asking you to surrender the rights. Therefore, you have |
//String added just before the filename extension to choose thumbnail names |
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//certain responsibilities if you distribute copies of the software, or if |
//based on name of full-sized image. |
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//you modify it: responsibilities to respect the freedom of others. |
define ("CFG_LANCZOS_FILTER_APPLY", FALSE); |
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// |
//TRUE if should apply the Lanczos filter when making the thumbnail, FALSE |
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// For example, if you distribute copies of such a program, whether |
//otherwise. I have no idea if using a Lanczos filter improves the quality |
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//gratis or for a fee, you must pass on to the recipients the same |
//of the thumbnails, but the filter was applied in the PHP example I found |
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//freedoms that you received. You must make sure that they, too, receive |
//online. Applying the Lanczos filter typically adds a few seconds to the |
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//or can get the source code. And you must show them these terms so they |
//time required to create each thumbnail. |
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//know their rights. |
define ("CFG_MAX_THUMBNAILS_PER_INVOCATION", 20); |
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// |
//The maximum number of thumbnails that should be created per invocation. |
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// Developers that use the GNU GPL protect your rights with two steps: |
//This is to prevent the program from being involuntarily terminated |
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//(1) assert copyright on the software, and (2) offer you this License |
//for taking too much CPU time. |
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//giving you legal permission to copy, distribute and/or modify it. |
//-------------------------------------------------------------------------------- |
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// |
//Calculates important integer indices related to creating a thumbnail, in order |
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// For the developers' and authors' protection, the GPL clearly explains |
//to minimize distortion in the thumbnail. |
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//that there is no warranty for this free software. For both users' and |
// |
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//authors' sake, the GPL requires that modified versions be marked as |
//When creating a thumbnail, the longer side may be relatively short (perhaps |
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//changed, so that their problems will not be attributed erroneously to |
//100 pixels), and the shorter side may be even shorter (perhaps even as short |
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//authors of previous versions. |
//as 10 pixels). If the dimensions of the original image were not changed, |
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// |
//converting the image to a thumbnail may result in distortion of up to about |
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// Some devices are designed to deny users access to install or run |
//one percent. As an example, suppose that a 1600 x 900 image is converted to a |
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//modified versions of the software inside them, although the manufacturer |
//thumbnail with the longer side of 125 pixels. The ideal dimension for the |
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//can do so. This is fundamentally incompatible with the aim of |
//shorter side would be (900/1600) * 125 = 70.3125 pixels. The aspect ratio of |
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//protecting users' freedom to change the software. The systematic |
//the thumbnail can't be made to match the aspect ratio of the original image. |
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//pattern of such abuse occurs in the area of products for individuals to |
// |
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//use, which is precisely where it is most unacceptable. Therefore, we |
//To avoid any aspect ratio distortion that might be noticeable, this program |
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//have designed this version of the GPL to prohibit the practice for those |
//chooses the shorter dimension for the thumbnail that is the ceiling of the actual |
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//products. If such problems arise substantially in other domains, we |
//quotient, then crops the longer dimension of the original image before the |
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//stand ready to extend this provision to those domains in future versions |
//conversion to try and match the aspect ratios as closely as possible. |
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//of the GPL, as needed to protect the freedom of users. |
// |
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// |
//In the example a paragraph or two above, the shorter side of the thumbnail |
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// Finally, every program is threatened constantly by software patents. |
//would be chosen to be 71 pixels. |
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//States should not allow patents to restrict development and use of |
// |
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//software on general-purpose computers, but in those that do, we wish to |
//Once this choice is made, we want to trim the original image before conversion |
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//avoid the special danger that patents applied to a free program could |
//so that n/900 is as close as possible to 125/71. n = (900 * 125) / 71 = |
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//make it effectively proprietary. To prevent this, the GPL assures that |
//1584.5070 pixels, so we choose 1585. This keeps the aspect ratio of the |
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//patents cannot be used to render the program non-free. |
//original image and the thumbnail as close as possible. |
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// |
// |
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// The precise terms and conditions for copying, distribution and |
//Although the longer side of the original image may be reduced prior to the |
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//modification follow. |
//conversion to a thumbnail, this information is not written to disk, and |
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// |
//the original image is not modified. The adjustment of the longer side is |
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// TERMS AND CONDITIONS |
//just a conversion trick to hopefully get better thumbnails. |
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// |
function calc_thumbnail_conversion_pars |
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// 0. Definitions. |
( |
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// |
$in_orig_longer, |
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// "This License" refers to version 3 of the GNU General Public License. |
//Longer dimension of original image. |
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// |
$in_orig_shorter, |
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// "Copyright" also means copyright-like laws that apply to other kinds of |
//Shorter dimension of original image. |
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//works, such as semiconductor masks. |
$in_thumbnail_longer, |
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// |
//Longer dimension of desired thumbnail. |
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// "The Program" refers to any copyrightable work licensed under this |
& $out_thumbnail_longer, |
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//License. Each licensee is addressed as "you". "Licensees" and |
//Longer dimension of thumbnail that should be created. |
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//"recipients" may be individuals or organizations. |
& $out_thumbnail_shorter, |
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// |
//Shorter dimension of thumbnail that should be created. |
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// To "modify" a work means to copy from or adapt all or part of the work |
& $out_orig_crop_dim_longer, |
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//in a fashion requiring copyright permission, other than the making of an |
//The size to crop to on the longer axis of the original. |
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//exact copy. The resulting work is called a "modified version" of the |
& $out_orig_crop_dim_shorter, |
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//earlier work or a work "based on" the earlier work. |
//The size to crop to on the shorter axis of the original. |
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// |
& $out_orig_crop_start_longer, |
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// A "covered work" means either the unmodified Program or a work based |
//For use with the Imagick:cropImage() method, the start |
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//on the Program. |
//position of the crop on the longer axis. |
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// |
& $out_orig_crop_start_shorter |
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// To "propagate" a work means to do anything with it that, without |
//For use with the Imagick:cropImage() method, the start |
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//permission, would make you directly or secondarily liable for |
//position of the crop on the shorter axis. |
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//infringement under applicable copyright law, except executing it on a |
) |
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//computer or modifying a private copy. Propagation includes copying, |
{ |
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//distribution (with or without modification), making available to the |
//Set the thumbnail shorter dimension to the floor. This means would need to trim |
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//public, and in some countries other activities as well. |
//longest dimension of original to match aspect ratio as closely as possible. |
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// |
$out_thumbnail_longer = $in_thumbnail_longer; |
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// To "convey" a work means any kind of propagation that enables other |
$out_thumbnail_shorter = ceil(((float)$in_thumbnail_longer * |
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//parties to make or receive copies. Mere interaction with a user through |
(float)$in_orig_shorter) / (float)$in_orig_longer); |
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//a computer network, with no transfer of a copy, is not conveying. |
settype($out_thumbnail_shorter, "integer"); |
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// |
|
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// An interactive user interface displays "Appropriate Legal Notices" |
//The aspect ratio of the thumbnail is now set. Try to match the aspect ratio of the larger |
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//to the extent that it includes a convenient and prominently visible |
//image as closely as possible by selecting a smaller number for the long axis of the |
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//feature that (1) displays an appropriate copyright notice, and (2) |
//original image. |
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//tells the user that there is no warranty for the work (except to the |
$out_orig_crop_dim_longer = round(((float)$in_thumbnail_longer * |
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//extent that warranties are provided), that licensees may convey the |
(float)$in_orig_shorter) / (float)$out_thumbnail_shorter); |
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//work under this License, and how to view a copy of this License. If |
settype($out_orig_crop_dim_longer, "integer"); |
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//the interface presents a list of user commands or options, such as a |
|
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//menu, a prominent item in the list meets this criterion. |
//The original keeps its shorter dimension unchanged. |
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// |
$out_orig_crop_dim_shorter = $in_orig_shorter; |
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// 1. Source Code. |
|
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// |
//Set the cropping of the longer side of the original to cover half the necessary |
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// The "source code" for a work means the preferred form of the work |
//reduction. |
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//for making modifications to it. "Object code" means any non-source |
$out_orig_crop_start_longer = round(((float)$in_orig_longer - |
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//form of a work. |
(float)$out_orig_crop_dim_longer) / 2.0); |
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// |
settype($out_orig_crop_start_longer, "integer"); |
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// A "Standard Interface" means an interface that either is an official |
|
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//standard defined by a recognized standards body, or, in the case of |
//No cropping of original shorter side. |
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//interfaces specified for a particular programming language, one that |
$out_orig_crop_start_shorter = 0; |
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//is widely used among developers working in that language. |
} |
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// |
//-------------------------------------------------------------------------------- |
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// The "System Libraries" of an executable work include anything, other |
//Repeats a character to the console output a certain number of times. |
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//than the work as a whole, that (a) is included in the normal form of |
function rep_char_con($c, $n) |
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//packaging a Major Component, but which is not part of that Major |
{ |
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//Component, and (b) serves only to enable use of the work with that |
while ($n--) |
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//Major Component, or to implement a Standard Interface for which an |
echo $c; |
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//implementation is available to the public in source code form. A |
} |
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//"Major Component", in this context, means a major essential component |
//-------------------------------------------------------------------------------- |
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//(kernel, window system, and so on) of the specific operating system |
//Writes a standard thick horizontal line to the console. |
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//(if any) on which the executable work runs, or a compiler used to |
function hor_line_thick() |
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//produce the work, or an object code interpreter used to run it. |
{ |
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// |
rep_char_con("=", CFG_CONSOLE_STD_LINE_LEN); |
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// The "Corresponding Source" for a work in object code form means all |
echo "\n"; |
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//the source code needed to generate, install, and (for an executable |
} |
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//work) run the object code and to modify the work, including scripts to |
//-------------------------------------------------------------------------------- |
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//control those activities. However, it does not include the work's |
//Writes a standard thin horizontal line to the console. |
148 |
//System Libraries, or general-purpose tools or generally available free |
function hor_line_thin() |
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//programs which are used unmodified in performing those activities but |
{ |
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//which are not part of the work. For example, Corresponding Source |
rep_char_con("-", CFG_CONSOLE_STD_LINE_LEN); |
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//includes interface definition files associated with source files for |
echo "\n"; |
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//the work, and the source code for shared libraries and dynamically |
} |
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//linked subprograms that the work is specifically designed to require, |
//-------------------------------------------------------------------------------- |
154 |
//such as by intimate data communication or control flow between those |
//Returns an array of all files in the working directory. |
155 |
//subprograms and other parts of the work. |
//If no files can be found, returns FALSE. |
156 |
// |
function get_file_names_in_dir() |
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// The Corresponding Source need not include anything that users |
{ |
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//can regenerate automatically from other parts of the Corresponding |
//Get directory list. |
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//Source. |
$rv = scandir ("."); |
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// |
|
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// The Corresponding Source for a work in source code form is that |
//If the list is empty, something went wrong. Return FALSE. |
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//same work. |
if ($rv === FALSE) |
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// |
return FALSE; |
164 |
// 2. Basic Permissions. |
|
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// |
return $rv; |
166 |
// All rights granted under this License are granted for the term of |
} |
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//copyright on the Program, and are irrevocable provided the stated |
//-------------------------------------------------------------------------------- |
168 |
//conditions are met. This License explicitly affirms your unlimited |
//Returns TRUE if a file name appears to be a valid full-sized image name, |
169 |
//permission to run the unmodified Program. The output from running a |
//or FALSE otherwise. |
170 |
//covered work is covered by this License only if the output, given its |
function is_full_sized_image_file_name($in_filename) |
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//content, constitutes a covered work. This License acknowledges your |
{ |
172 |
//rights of fair use or other equivalent, as provided by copyright law. |
//Convert the string name to all lower case. This will do for |
173 |
// |
//comparisons and tests. |
174 |
// You may make, run and propagate covered works that you do not |
$s = strtolower($s); |
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//convey, without conditions so long as your license otherwise remains |
|
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//in force. You may convey covered works to others for the sole purpose |
//Attempt to split the name into a base and an extension. Any failure |
177 |
//of having them make modifications exclusively for you, or provide you |
//means it is an unsuitable name. |
178 |
//with facilities for running those works, provided that you comply with |
$extension_start = strrpos($in_filename, "."); |
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//the terms of this License in conveying all material for which you do |
//Find position of last "." in string. This should precede the |
180 |
//not control copyright. Those thus making or running the covered works |
//file extension. |
181 |
//for you must do so exclusively on your behalf, under your direction |
|
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//and control, on terms that prohibit them from making any copies of |
if ($extension_start === FALSE) |
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//your copyrighted material outside their relationship with you. |
{ |
184 |
// |
//Bad name. Unsuitable. |
185 |
// Conveying under any other circumstances is permitted solely under |
return FALSE; |
186 |
//the conditions stated below. Sublicensing is not allowed; section 10 |
} |
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//makes it unnecessary. |
|
188 |
// |
//Calculate the base and extension. |
189 |
// 3. Protecting Users' Legal Rights From Anti-Circumvention Law. |
$filename_base = substr($in_filename, 0, $extension_start); |
190 |
// |
$filename_extension = substr($in_filename, $extension_start + 1); |
191 |
// No covered work shall be deemed part of an effective technological |
|
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//measure under any applicable law fulfilling obligations under article |
//If the extension is neither "jpg" nor "jpeg", it is unsuitable. |
193 |
//11 of the WIPO copyright treaty adopted on 20 December 1996, or |
if (($filename_extension != "jpg") && ($filename_extension != "jpeg")) |
194 |
//similar laws prohibiting or restricting circumvention of such |
return FALSE; |
195 |
//measures. |
|
196 |
// |
//If the filename base is empty, the filename is unsuitable. |
197 |
// When you convey a covered work, you waive any legal power to forbid |
if (strlen($filename_base) == 0) |
198 |
//circumvention of technological measures to the extent such circumvention |
return FALSE; |
199 |
//is effected by exercising rights under this License with respect to |
|
200 |
//the covered work, and you disclaim any intention to limit operation or |
//If the last characters of the base are the CFG_THUMBNAIL_FILENAME_SUFFIX, |
201 |
//modification of the work as a means of enforcing, against the work's |
//the name is unsuitable. |
202 |
//users, your or third parties' legal rights to forbid circumvention of |
if (strlen($filename_base) >= strlen(CFG_THUMBNAIL_FILENAME_SUFFIX)) |
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//technological measures. |
{ |
204 |
// |
if (substr($filename_base, strlen($filename_base) - strlen(CFG_THUMBNAIL_FILENAME_SUFFIX)) |
205 |
// 4. Conveying Verbatim Copies. |
== CFG_THUMBNAIL_FILENAME_SUFFIX) |
206 |
// |
return FALSE; |
207 |
// You may convey verbatim copies of the Program's source code as you |
} |
208 |
//receive it, in any medium, provided that you conspicuously and |
|
209 |
//appropriately publish on each copy an appropriate copyright notice; |
//Looks good. |
210 |
//keep intact all notices stating that this License and any |
return TRUE; |
211 |
//non-permissive terms added in accord with section 7 apply to the code; |
} |
212 |
//keep intact all notices of the absence of any warranty; and give all |
//-------------------------------------------------------------------------------- |
213 |
//recipients a copy of this License along with the Program. |
//As a function of the file name, creates the file name for the thumbnail. |
214 |
// |
function file_name_to_thumbnail_name($in_filename) |
215 |
// You may charge any price or no price for each copy that you convey, |
{ |
216 |
//and you may offer support or warranty protection for a fee. |
$extension_start = strrpos($in_filename, "."); |
217 |
// |
//Find position of last "." in string. This should precede the |
218 |
// 5. Conveying Modified Source Versions. |
//file extension. |
219 |
// |
if ($extension_start === FALSE) |
220 |
// You may convey a work based on the Program, or the modifications to |
{ |
221 |
//produce it from the Program, in the form of source code under the |
//"." not found. Should not happen. Filenames were checked in advance. |
222 |
//terms of section 4, provided that you also meet all of these conditions: |
echo "Fatal internal error at line " . __LINE__ . "\n"; |
223 |
// |
exit(1); |
224 |
// a) The work must carry prominent notices stating that you modified |
} |
225 |
// it, and giving a relevant date. |
|
226 |
// |
$filename_prefix = substr($in_filename, 0, $extension_start); |
227 |
// b) The work must carry prominent notices stating that it is |
$filename_extension = substr($in_filename, $extension_start); |
228 |
// released under this License and any conditions added under section |
|
229 |
// 7. This requirement modifies the requirement in section 4 to |
$rv = $filename_prefix . CFG_THUMBNAIL_FILENAME_SUFFIX . $filename_extension; |
230 |
// "keep intact all notices". |
|
231 |
// |
return $rv; |
232 |
// c) You must license the entire work, as a whole, under this |
} |
233 |
// License to anyone who comes into possession of a copy. This |
//-------------------------------------------------------------------------------- |
234 |
// License will therefore apply, along with any applicable section 7 |
//Actually creates the thumbnail, and returns some information about what was |
235 |
// additional terms, to the whole of the work, and all its parts, |
//done. |
236 |
// regardless of how they are packaged. This License gives no |
// |
237 |
// permission to license the work in any other way, but it does not |
//The calls to the ImagMagick library take on the order of 5s per image if there |
238 |
// invalidate such permission if you have separately received it. |
//is filtering. |
239 |
// |
function create_thumbnail( $in_filename, |
240 |
// d) If the work has interactive user interfaces, each must display |
$in_thumbnailname, |
241 |
// Appropriate Legal Notices; however, if the Program has interactive |
& $out_filename_filesize, |
242 |
// interfaces that do not display Appropriate Legal Notices, your |
& $out_filename_xdim, |
243 |
// work need not make them do so. |
& $out_filename_ydim, |
244 |
// |
& $out_thumbnailname_filesize, |
245 |
// A compilation of a covered work with other separate and independent |
& $out_thumbnailname_xdim, |
246 |
//works, which are not by their nature extensions of the covered work, |
& $out_thumbnailname_ydim) |
247 |
//and which are not combined with it such as to form a larger program, |
{ |
248 |
//in or on a volume of a storage or distribution medium, is called an |
//Assign output parameters just in case something doesn't get assigned. |
249 |
//"aggregate" if the compilation and its resulting copyright are not |
$out_filename_filesize = 0; |
250 |
//used to limit the access or legal rights of the compilation's users |
$out_filename_xdim = 0; |
251 |
//beyond what the individual works permit. Inclusion of a covered work |
$out_filename_ydim = 0; |
252 |
//in an aggregate does not cause this License to apply to the other |
$out_thumbnailname_filesize = 0; |
253 |
//parts of the aggregate. |
$out_thumbnailname_xdim = 0; |
254 |
// |
$out_thumbnailname_ydim = 0; |
255 |
// 6. Conveying Non-Source Forms. |
|
256 |
// |
//Establish target dimensions. Two cases, depending on which is the longer |
257 |
// You may convey a covered work in object code form under the terms |
//side. |
258 |
//of sections 4 and 5, provided that you also convey the |
|
259 |
//machine-readable Corresponding Source under the terms of this License, |
//Construct. |
260 |
//in one of these ways: |
$imagick = new Imagick(); |
261 |
// |
|
262 |
// a) Convey the object code in, or embodied in, a physical product |
//Load image. |
263 |
// (including a physical distribution medium), accompanied by the |
$imagick->readImage($in_filename); |
264 |
// Corresponding Source fixed on a durable physical medium |
|
265 |
// customarily used for software interchange. |
//Get the dimensions of the image we just loaded. |
266 |
// |
$geo = $imagick->getImageGeometry(); |
267 |
// b) Convey the object code in, or embodied in, a physical product |
$out_filename_xdim = $geo['width']; |
268 |
// (including a physical distribution medium), accompanied by a |
$out_filename_ydim = $geo['height']; |
269 |
// written offer, valid for at least three years and valid for as |
|
270 |
// long as you offer spare parts or customer support for that product |
//Calculate target sizes. We rearrange parameters based on which is our |
271 |
// model, to give anyone who possesses the object code either (1) a |
//longest side. |
272 |
// copy of the Corresponding Source for all the software in the |
if ($out_filename_xdim >= $out_filename_ydim) |
273 |
// product that is covered by this License, on a durable physical |
{ |
274 |
// medium customarily used for software interchange, for a price no |
//Longer width (x-dimension), or square. |
275 |
// more than your reasonable cost of physically performing this |
calc_thumbnail_conversion_pars |
276 |
// conveying of source, or (2) access to copy the |
( |
277 |
// Corresponding Source from a network server at no charge. |
$out_filename_xdim, |
278 |
// |
$out_filename_ydim, |
279 |
// c) Convey individual copies of the object code with a copy of the |
CFG_THUMBNAIL_DIMENSION_MAX, |
280 |
// written offer to provide the Corresponding Source. This |
$out_thumbnailname_xdim, |
281 |
// alternative is allowed only occasionally and noncommercially, and |
$out_thumbnailname_ydim, |
282 |
// only if you received the object code with such an offer, in accord |
$orig_crop_dim_x, |
283 |
// with subsection 6b. |
$orig_crop_dim_y, |
284 |
// |
$orig_crop_start_x, |
285 |
// d) Convey the object code by offering access from a designated |
$orig_crop_start_y |
286 |
// place (gratis or for a charge), and offer equivalent access to the |
); |
287 |
// Corresponding Source in the same way through the same place at no |
} |
288 |
// further charge. You need not require recipients to copy the |
else |
289 |
// Corresponding Source along with the object code. If the place to |
{ |
290 |
// copy the object code is a network server, the Corresponding Source |
//Longer height (y-dimension). |
291 |
// may be on a different server (operated by you or a third party) |
calc_thumbnail_conversion_pars |
292 |
// that supports equivalent copying facilities, provided you maintain |
( |
293 |
// clear directions next to the object code saying where to find the |
$out_filename_ydim, |
294 |
// Corresponding Source. Regardless of what server hosts the |
$out_filename_xdim, |
295 |
// Corresponding Source, you remain obligated to ensure that it is |
CFG_THUMBNAIL_DIMENSION_MAX, |
296 |
// available for as long as needed to satisfy these requirements. |
$out_thumbnailname_ydim, |
297 |
// |
$out_thumbnailname_xdim, |
298 |
// e) Convey the object code using peer-to-peer transmission, provided |
$orig_crop_dim_y, |
299 |
// you inform other peers where the object code and Corresponding |
$orig_crop_dim_x, |
300 |
// Source of the work are being offered to the general public at no |
$orig_crop_start_y, |
301 |
// charge under subsection 6d. |
$orig_crop_start_x |
302 |
// |
); |
303 |
// A separable portion of the object code, whose source code is excluded |
} |
304 |
//from the Corresponding Source as a System Library, need not be |
|
305 |
//included in conveying the object code work. |
//For debugging only, might want to know intermediate calculation results. |
306 |
// |
//echo "xcropdim, ycropdim, xcropstart, ycropstart: " |
307 |
// A "User Product" is either (1) a "consumer product", which means any |
// . |
308 |
//tangible personal property which is normally used for personal, family, |
// $orig_crop_dim_x |
309 |
//or household purposes, or (2) anything designed or sold for incorporation |
// . |
310 |
//into a dwelling. In determining whether a product is a consumer product, |
// " " |
311 |
//doubtful cases shall be resolved in favor of coverage. For a particular |
// . |
312 |
//product received by a particular user, "normally used" refers to a |
// $orig_crop_dim_y |
313 |
//typical or common use of that class of product, regardless of the status |
// . |
314 |
//of the particular user or of the way in which the particular user |
// " " |
315 |
//actually uses, or expects or is expected to use, the product. A product |
// . |
316 |
//is a consumer product regardless of whether the product has substantial |
// $orig_crop_start_x |
317 |
//commercial, industrial or non-consumer uses, unless such uses represent |
// . |
318 |
//the only significant mode of use of the product. |
// " " |
319 |
// |
// . |
320 |
// "Installation Information" for a User Product means any methods, |
// $orig_crop_start_y |
321 |
//procedures, authorization keys, or other information required to install |
// . |
322 |
//and execute modified versions of a covered work in that User Product from |
// "\n"; |
323 |
//a modified version of its Corresponding Source. The information must |
|
324 |
//suffice to ensure that the continued functioning of the modified object |
//Crop the original to try to preserve the aspect ratio of the thumbnail |
325 |
//code is in no case prevented or interfered with solely because |
//as precisely as possible. |
326 |
//modification has been made. |
$imagick->cropImage( |
327 |
// |
$orig_crop_dim_x, |
328 |
// If you convey an object code work under this section in, or with, or |
$orig_crop_dim_y, |
329 |
//specifically for use in, a User Product, and the conveying occurs as |
$orig_crop_start_x, |
330 |
//part of a transaction in which the right of possession and use of the |
$orig_crop_start_y |
331 |
//User Product is transferred to the recipient in perpetuity or for a |
); |
332 |
//fixed term (regardless of how the transaction is characterized), the |
|
333 |
//Corresponding Source conveyed under this section must be accompanied |
//For debugging only, might want to get a look at the cropped image, to |
334 |
//by the Installation Information. But this requirement does not apply |
//be sure nothing unexpected happens on the canvas. |
335 |
//if neither you nor any third party retains the ability to install |
//$imagick->writeImage($in_filename . ".cropped.jpg"); |
336 |
//modified object code on the User Product (for example, the work has |
|
337 |
//been installed in ROM). |
//Resize to thumbnail size. |
338 |
// |
if (CFG_LANCZOS_FILTER_APPLY) |
339 |
// The requirement to provide Installation Information does not include a |
{ |
340 |
//requirement to continue to provide support service, warranty, or updates |
$imagick->resizeImage($out_thumbnailname_xdim, |
341 |
//for a work that has been modified or installed by the recipient, or for |
$out_thumbnailname_ydim, |
342 |
//the User Product in which it has been modified or installed. Access to a |
Imagick::FILTER_LANCZOS, |
343 |
//network may be denied when the modification itself materially and |
1); |
344 |
//adversely affects the operation of the network or violates the rules and |
} |
345 |
//protocols for communication across the network. |
else |
346 |
// |
{ |
347 |
// Corresponding Source conveyed, and Installation Information provided, |
$imagick->resizeImage($out_thumbnailname_xdim, |
348 |
//in accord with this section must be in a format that is publicly |
$out_thumbnailname_ydim, |
349 |
//documented (and with an implementation available to the public in |
0, |
350 |
//source code form), and must require no special password or key for |
1); |
351 |
//unpacking, reading or copying. |
} |
352 |
// |
|
353 |
// 7. Additional Terms. |
//Create the border. |
354 |
// |
$imagick->raiseImage(CFG_THUMBNAIL_BEVELED_BORDER_WIDTH, |
355 |
// "Additional permissions" are terms that supplement the terms of this |
CFG_THUMBNAIL_BEVELED_BORDER_WIDTH, |
356 |
//License by making exceptions from one or more of its conditions. |
0, |
357 |
//Additional permissions that are applicable to the entire Program shall |
0, |
358 |
//be treated as though they were included in this License, to the extent |
1); |
359 |
//that they are valid under applicable law. If additional permissions |
|
360 |
//apply only to part of the Program, that part may be used separately |
//Set compression to get a smaller thumbnail written, and strip |
361 |
//under those permissions, but the entire Program remains governed by |
//header information. stripImage() seems to have the largest effect |
362 |
//this License without regard to the additional permissions. |
//on thumbnail file size, so leaving the thumbnail quality near 100% |
363 |
// |
//is feasible. The jump in file size between 90% and 95% seemed to be |
364 |
// When you convey a copy of a covered work, you may at your option |
//fairly large (40% to 50%), so I left it at 90%. My rationale is |
365 |
//remove any additional permissions from that copy, or from any part of |
//that with the proliferation of mobile devices and cellular data, |
366 |
//it. (Additional permissions may be written to require their own |
//getting the thumbnail as small as possible is more important than |
367 |
//removal in certain cases when you modify the work.) You may place |
//the thumbnail looking perfect. If the viewer wants a perfect image, |
368 |
//additional permissions on material, added by you to a covered work, |
//they can view the full-sized image. |
369 |
//for which you have or can give appropriate copyright permission. |
$imagick->setImageCompression(Imagick::COMPRESSION_JPEG); |
370 |
// |
$imagick->setImageCompressionQuality(90); |
371 |
// Notwithstanding any other provision of this License, for material you |
$imagick->stripImage(); |
372 |
//add to a covered work, you may (if authorized by the copyright holders of |
|
373 |
//that material) supplement the terms of this License with terms: |
//Write the thumbnail. |
374 |
// |
$imagick->writeImage($in_thumbnailname); |
375 |
// a) Disclaiming warranty or limiting liability differently from the |
|
376 |
// terms of sections 15 and 16 of this License; or |
//Destroy to prevent memory leak. |
377 |
// |
$imagick->clear(); |
378 |
// b) Requiring preservation of specified reasonable legal notices or |
$imagick->destroy(); |
379 |
// author attributions in that material or in the Appropriate Legal |
|
380 |
// Notices displayed by works containing it; or |
//All of the writing is done. Try to obtain the file sizes. |
381 |
// |
$fsize = filesize($in_filename); |
382 |
// c) Prohibiting misrepresentation of the origin of that material, or |
if ($fsize !== FALSE) |
383 |
// requiring that modified versions of such material be marked in |
$out_filename_filesize = $fsize; |
384 |
// reasonable ways as different from the original version; or |
$fsize = filesize($in_thumbnailname); |
385 |
// |
if ($fsize !== FALSE) |
386 |
// d) Limiting the use for publicity purposes of names of licensors or |
$out_thumbnailname_filesize = $fsize; |
387 |
// authors of the material; or |
} |
388 |
// |
//-------------------------------------------------------------------------------- |
389 |
// e) Declining to grant rights under trademark law for use of some |
//Write introductory message. |
390 |
// trade names, trademarks, or service marks; or |
hor_line_thick(); |
391 |
// |
echo CFG_PROGNAME . " Copyright (C) 2015 David T. Ashley\n"; |
392 |
// f) Requiring indemnification of licensors and authors of that |
echo "This program comes with ABSOLUTELY NO WARRANTY; and is licensed under\n"; |
393 |
// material by anyone who conveys the material (or modified versions of |
echo "the GNU General Public License, Version 3. A copy of this license is\n"; |
394 |
// it) with contractual assumptions of liability to the recipient, for |
echo "provided in the source code of this program.\n"; |
395 |
// any liability that these contractual assumptions directly impose on |
hor_line_thin(); |
396 |
// those licensors and authors. |
//----------------------------------------------------------------------------- |
397 |
// |
//Get and emit the names of everything in the directory. |
398 |
// All other non-permissive additional terms are considered "further |
$file_list = get_file_names_in_dir(); |
399 |
//restrictions" within the meaning of section 10. If the Program as you |
if ($file_list === FALSE) |
400 |
//received it, or any part of it, contains a notice stating that it is |
{ |
401 |
//governed by this License along with a term that is a further |
echo "List of files from PHP function scandir() is empty.\n"; |
402 |
//restriction, you may remove that term. If a license document contains |
echo "Serious internal error, or nothing to do. Script cannot continue.\n"; |
403 |
//a further restriction but permits relicensing or conveying under this |
hor_line_thick(); |
404 |
//License, you may add to a covered work material governed by the terms |
exit(1); |
405 |
//of that license document, provided that the further restriction does |
} |
406 |
//not survive such relicensing or conveying. |
else |
407 |
// |
{ |
408 |
// If you add terms to a covered work in accord with this section, you |
echo "Files in working directory (unsorted, unfiltered, " |
409 |
//must place, in the relevant source files, a statement of the |
. |
410 |
//additional terms that apply to those files, or a notice indicating |
count($file_list) |
411 |
//where to find the applicable terms. |
. |
412 |
// |
" files):\n"; |
413 |
// Additional terms, permissive or non-permissive, may be stated in the |
for ($i = 0; $i < count($file_list); $i++) |
414 |
//form of a separately written license, or stated as exceptions; |
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . "\n"; |
415 |
//the above requirements apply either way. |
} |
416 |
// |
hor_line_thin(); |
417 |
// 8. Termination. |
//----------------------------------------------------------------------------- |
418 |
// |
//Remove the standard directory entries "." and ".." from the list, and |
419 |
// You may not propagate or modify a covered work except as expressly |
//remove any directories. |
420 |
//provided under this License. Any attempt otherwise to propagate or |
$temp_list = $file_list; |
421 |
//modify it is void, and will automatically terminate your rights under |
unset($file_list); |
422 |
//this License (including any patent licenses granted under the third |
$n = 0; |
423 |
//paragraph of section 11). |
for ($i = 0; $i < count($temp_list); $i++) |
424 |
// |
{ |
425 |
// However, if you cease all violation of this License, then your |
//echo "Checking " . $temp_list[$i] . "\n"; |
426 |
//license from a particular copyright holder is reinstated (a) |
|
427 |
//provisionally, unless and until the copyright holder explicitly and |
if (strcmp($temp_list[$i], ".") == 0) |
428 |
//finally terminates your license, and (b) permanently, if the copyright |
{ |
429 |
//holder fails to notify you of the violation by some reasonable means |
//. entry, not a file. |
430 |
//prior to 60 days after the cessation. |
} |
431 |
// |
else if (strcmp($temp_list[$i], "..") == 0) |
432 |
// Moreover, your license from a particular copyright holder is |
{ |
433 |
//reinstated permanently if the copyright holder notifies you of the |
//.. entry, not a file. |
434 |
//violation by some reasonable means, this is the first time you have |
} |
435 |
//received notice of violation of this License (for any work) from that |
else if (is_file($temp_list[$i])) |
436 |
//copyright holder, and you cure the violation prior to 30 days after |
{ |
437 |
//your receipt of the notice. |
//This is a regular file. |
438 |
// |
$file_list[] = $temp_list[$i]; |
439 |
// Termination of your rights under this section does not terminate the |
$n++; |
440 |
//licenses of parties who have received copies or rights from you under |
} |
441 |
//this License. If your rights have been terminated and not permanently |
} |
442 |
//reinstated, you do not qualify to receive new licenses for the same |
|
443 |
//material under section 10. |
if ($n == 0) |
444 |
// |
$file_list = FALSE; |
445 |
// 9. Acceptance Not Required for Having Copies. |
|
446 |
// |
unset($n); |
447 |
// You are not required to accept this License in order to receive or |
unset($temp_list); |
448 |
//run a copy of the Program. Ancillary propagation of a covered work |
//----------------------------------------------------------------------------- |
449 |
//occurring solely as a consequence of using peer-to-peer transmission |
//If there is nothing to do, end the script. |
450 |
//to receive a copy likewise does not require acceptance. However, |
if ($file_list === FALSE) |
451 |
//nothing other than this License grants you permission to propagate or |
{ |
452 |
//modify any covered work. These actions infringe copyright if you do |
echo "No files to process.\n"; |
453 |
//not accept this License. Therefore, by modifying or propagating a |
hor_line_thick(); |
454 |
//covered work, you indicate your acceptance of this License to do so. |
exit(0); |
455 |
// |
} |
456 |
// 10. Automatic Licensing of Downstream Recipients. |
//----------------------------------------------------------------------------- |
457 |
// |
//Sort the list. This is a non-event. The only rationale for sorting is that |
458 |
// Each time you convey a covered work, the recipient automatically |
//it ensures that the same set of files will be processed in the same order, |
459 |
//receives a license from the original licensors, to run, modify and |
//regardless of the order provided by the underlying OS internals. |
460 |
//propagate that work, subject to this License. You are not responsible |
sort($file_list); |
461 |
//for enforcing compliance by third parties with this License. |
//----------------------------------------------------------------------------- |
462 |
// |
//Emit the names we now have. |
463 |
// An "entity transaction" is a transaction transferring control of an |
echo "Files in working directory (directory entries removed, sorted, " |
464 |
//organization, or substantially all assets of one, or subdividing an |
. |
465 |
//organization, or merging organizations. If propagation of a covered |
count($file_list) |
466 |
//work results from an entity transaction, each party to that |
. |
467 |
//transaction who receives a copy of the work also receives whatever |
" files):\n"; |
468 |
//licenses to the work the party's predecessor in interest had or could |
for ($i = 0; $i < count($file_list); $i++) |
469 |
//give under the previous paragraph, plus a right to possession of the |
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . "\n"; |
470 |
//Corresponding Source of the work from the predecessor in interest, if |
hor_line_thin(); |
471 |
//the predecessor has it or can get it with reasonable efforts. |
|
472 |
// |
//----------------------------------------------------------------------------- |
473 |
// You may not impose any further restrictions on the exercise of the |
//For each file that is appropriate and where the thumbnail does not already |
474 |
//rights granted or affirmed under this License. For example, you may |
//exist, up to the maximum we may do in one invocation, create the thumbnail. |
475 |
//not impose a license fee, royalty, or other charge for exercise of |
$i = 0; |
476 |
//rights granted under this License, and you may not initiate litigation |
$completed = 0; |
477 |
//(including a cross-claim or counterclaim in a lawsuit) alleging that |
while (($completed < CFG_MAX_THUMBNAILS_PER_INVOCATION) && ($i < count($file_list))) |
478 |
//any patent claim is infringed by making, using, selling, offering for |
{ |
479 |
//sale, or importing the Program or any portion of it. |
if (is_full_sized_image_file_name($file_list[$i])) |
480 |
// |
{ |
481 |
// 11. Patents. |
$thumbnail_name = file_name_to_thumbnail_name($file_list[$i]); |
482 |
// |
|
483 |
// A "contributor" is a copyright holder who authorizes use under this |
if (file_exists($thumbnail_name)) |
484 |
//License of the Program or a work on which the Program is based. The |
{ |
485 |
//work thus licensed is called the contributor's "contributor version". |
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . " : skipping because corresponding thumbnail exists.\n"; |
486 |
// |
hor_line_thin(); |
487 |
// A contributor's "essential patent claims" are all patent claims |
} |
488 |
//owned or controlled by the contributor, whether already acquired or |
else |
489 |
//hereafter acquired, that would be infringed by some manner, permitted |
{ |
490 |
//by this License, of making, using, or selling its contributor version, |
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . " : creating thumbnail.\n"; |
491 |
//but do not include claims that would be infringed only as a |
|
492 |
//consequence of further modification of the contributor version. For |
echo "Creating thumbnail \"" . |
493 |
//purposes of this definition, "control" includes the right to grant |
$thumbnail_name . |
494 |
//patent sublicenses in a manner consistent with the requirements of |
"\" from image \"" . |
495 |
//this License. |
$file_list[$i] . |
496 |
// |
"\".\n"; |
497 |
// Each contributor grants you a non-exclusive, worldwide, royalty-free |
|
498 |
//patent license under the contributor's essential patent claims, to |
create_thumbnail($file_list[$i], |
499 |
//make, use, sell, offer for sale, import and otherwise run, modify and |
$thumbnail_name, |
500 |
//propagate the contents of its contributor version. |
$filename_filesize, |
501 |
// |
$filename_xdim, |
502 |
// In the following three paragraphs, a "patent license" is any express |
$filename_ydim, |
503 |
//agreement or commitment, however denominated, not to enforce a patent |
$thumbnail_filesize, |
504 |
//(such as an express permission to practice a patent or covenant not to |
$thumbnail_xdim, |
505 |
//sue for patent infringement). To "grant" such a patent license to a |
$thumbnail_ydim); |
506 |
//party means to make such an agreement or commitment not to enforce a |
|
507 |
//patent against the party. |
echo "Conversion complete.\n"; |
508 |
// |
echo " Full-sized image file size/xdim/ydim = " . |
509 |
// If you convey a covered work, knowingly relying on a patent license, |
$filename_filesize . "/" . $filename_xdim . "/" . $filename_ydim . |
510 |
//and the Corresponding Source of the work is not available for anyone |
",\n"; |
511 |
//to copy, free of charge and under the terms of this License, through a |
echo " Thumbnail image filesize/xdim/ydim = " . |
512 |
//publicly available network server or other readily accessible means, |
$thumbnail_filesize . "/" . $thumbnail_xdim . "/" . $thumbnail_ydim . |
513 |
//then you must either (1) cause the Corresponding Source to be so |
",\n"; |
514 |
//available, or (2) arrange to deprive yourself of the benefit of the |
|
515 |
//patent license for this particular work, or (3) arrange, in a manner |
hor_line_thin(); |
516 |
//consistent with the requirements of this License, to extend the patent |
$completed++; |
517 |
//license to downstream recipients. "Knowingly relying" means you have |
} |
518 |
//actual knowledge that, but for the patent license, your conveying the |
} |
519 |
//covered work in a country, or your recipient's use of the covered work |
else |
520 |
//in a country, would infringe one or more identifiable patents in that |
{ |
521 |
//country that you have reason to believe are valid. |
//Unsuitable base name. Can't use it. |
522 |
// |
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . " : skipping due to unsuitable name.\n"; |
523 |
// If, pursuant to or in connection with a single transaction or |
hor_line_thin(); |
524 |
//arrangement, you convey, or propagate by procuring conveyance of, a |
} |
525 |
//covered work, and grant a patent license to some of the parties |
|
526 |
//receiving the covered work authorizing them to use, propagate, modify |
$i++; |
527 |
//or convey a specific copy of the covered work, then the patent license |
} |
528 |
//you grant is automatically extended to all recipients of the covered |
|
529 |
//work and works based on it. |
//Emit a message about whether the program should be run again. I am aware of |
530 |
// |
//the uncovered case--where the last thumbnail was made on the last iteration |
531 |
// A patent license is "discriminatory" if it does not include within |
//of this invocation--but I will leave it uncovered for now. All that happens |
532 |
//the scope of its coverage, prohibits the exercise of, or is |
//is the user runs the program unnecessarily one more time. |
533 |
//conditioned on the non-exercise of one or more of the rights that are |
if ($completed == 0) |
534 |
//specifically granted under this License. You may not convey a covered |
{ |
535 |
//work if you are a party to an arrangement with a third party that is |
echo "No thumbnails were created--this program is done creating thumbnails.\n"; |
536 |
//in the business of distributing software, under which you make payment |
echo "It is not necessary to run this program again.\n"; |
537 |
//to the third party based on the extent of your activity of conveying |
hor_line_thin(); |
538 |
//the work, and under which the third party grants, to any of the |
} |
539 |
//parties who would receive the covered work from you, a discriminatory |
else |
540 |
//patent license (a) in connection with copies of the covered work |
{ |
541 |
//conveyed by you (or copies made from those copies), or (b) primarily |
echo $completed . " thumbnail(s) were created. Please run this program repeatedly again\n"; |
542 |
//for and in connection with specific products or compilations that |
echo "until no more thumbnails are created.\n"; |
543 |
//contain the covered work, unless you entered into that arrangement, |
hor_line_thin(); |
544 |
//or that patent license was granted, prior to 28 March 2007. |
} |
545 |
// |
|
546 |
// Nothing in this License shall be construed as excluding or limiting |
echo CFG_PROGNAME . " execution ends.\n"; |
547 |
//any implied license or other defenses to infringement that may |
hor_line_thick(); |
548 |
//otherwise be available to you under applicable patent law. |
//-------------------------------------------------------------------------------- |
549 |
// |
//End of File |
550 |
// 12. No Surrender of Others' Freedom. |
//-------------------------------------------------------------------------------- |
551 |
// |
?> |
|
// If conditions are imposed on you (whether by court order, agreement or |
|
|
//otherwise) that contradict the conditions of this License, they do not |
|
|
//excuse you from the conditions of this License. If you cannot convey a |
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//covered work so as to satisfy simultaneously your obligations under this |
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//not convey it at all. For example, if you agree to terms that obligate you |
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//to collect a royalty for further conveying from those to whom you convey |
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|
//the Program, the only way you could satisfy both those terms and this |
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|
//License would be to refrain entirely from conveying the Program. |
|
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// |
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|
// 13. Use with the GNU Affero General Public License. |
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// |
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// Notwithstanding any other provision of this License, you have |
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//permission to link or combine any covered work with a work licensed |
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//under version 3 of the GNU Affero General Public License into a single |
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//combined work, and to convey the resulting work. The terms of this |
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//License will continue to apply to the part which is the covered work, |
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//but the special requirements of the GNU Affero General Public License, |
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//section 13, concerning interaction through a network will apply to the |
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//combination as such. |
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// |
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// 14. Revised Versions of this License. |
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// |
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// The Free Software Foundation may publish revised and/or new versions of |
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//the GNU General Public License from time to time. Such new versions will |
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//be similar in spirit to the present version, but may differ in detail to |
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//address new problems or concerns. |
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// |
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// Each version is given a distinguishing version number. If the |
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//Public License "or any later version" applies to it, you have the |
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//option of following the terms and conditions either of that numbered |
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//version or of any later version published by the Free Software |
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//Foundation. If the Program does not specify a version number of the |
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//GNU General Public License, you may choose any version ever published |
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//by the Free Software Foundation. |
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// |
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// If the Program specifies that a proxy can decide which future |
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//versions of the GNU General Public License can be used, that proxy's |
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//public statement of acceptance of a version permanently authorizes you |
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// |
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// Later license versions may give you additional or different |
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//permissions. However, no additional obligations are imposed on any |
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//author or copyright holder as a result of your choosing to follow a |
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//later version. |
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// |
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// 15. Disclaimer of Warranty. |
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// |
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// THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY |
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//APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT |
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//HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY |
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//OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, |
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//IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF |
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//ALL NECESSARY SERVICING, REPAIR OR CORRECTION. |
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// |
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// 16. Limitation of Liability. |
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|
// |
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// IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING |
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//WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS |
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//THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY |
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//GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE |
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//USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF |
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//DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD |
|
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//PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), |
|
|
//EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF |
|
|
//SUCH DAMAGES. |
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|
// |
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|
// 17. Interpretation of Sections 15 and 16. |
|
|
// |
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|
// If the disclaimer of warranty and limitation of liability provided |
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//above cannot be given local legal effect according to their terms, |
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//reviewing courts shall apply local law that most closely approximates |
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//an absolute waiver of all civil liability in connection with the |
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//Program, unless a warranty or assumption of liability accompanies a |
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//copy of the Program in return for a fee. |
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// |
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// END OF TERMS AND CONDITIONS |
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// |
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// How to Apply These Terms to Your New Programs |
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// |
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// If you develop a new program, and you want it to be of the greatest |
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//possible use to the public, the best way to achieve this is to make it |
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//free software which everyone can redistribute and change under these terms. |
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// |
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// To do so, attach the following notices to the program. It is safest |
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//to attach them to the start of each source file to most effectively |
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//state the exclusion of warranty; and each file should have at least |
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//the "copyright" line and a pointer to where the full notice is found. |
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|
// |
|
|
// <one line to give the program's name and a brief idea of what it does.> |
|
|
// Copyright (C) <year> <name of author> |
|
|
// |
|
|
// This program is free software: you can redistribute it and/or modify |
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|
// it under the terms of the GNU General Public License as published by |
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// the Free Software Foundation, either version 3 of the License, or |
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// (at your option) any later version. |
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// |
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// This program is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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// |
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// You should have received a copy of the GNU General Public License |
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// along with this program. If not, see <http://www.gnu.org/licenses/>. |
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// |
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//Also add information on how to contact you by electronic and paper mail. |
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|
// |
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|
// If the program does terminal interaction, make it output a short |
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|
//notice like this when it starts in an interactive mode: |
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|
// |
|
|
// <program> Copyright (C) <year> <name of author> |
|
|
// This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. |
|
|
// This is free software, and you are welcome to redistribute it |
|
|
// under certain conditions; type `show c' for details. |
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|
// |
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|
//The hypothetical commands `show w' and `show c' should show the appropriate |
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|
//parts of the General Public License. Of course, your program's commands |
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//might be different; for a GUI interface, you would use an "about box". |
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// |
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// You should also get your employer (if you work as a programmer) or school, |
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//if any, to sign a "copyright disclaimer" for the program, if necessary. |
|
|
//For more information on this, and how to apply and follow the GNU GPL, see |
|
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//<http://www.gnu.org/licenses/>. |
|
|
// |
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|
// The GNU General Public License does not permit incorporating your program |
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//into proprietary programs. If your program is a subroutine library, you |
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//may consider it more useful to permit linking proprietary applications with |
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//the library. If this is what you want to do, use the GNU Lesser General |
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//Public License instead of this License. But first, please read |
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//<http://www.gnu.org/philosophy/why-not-lgpl.html>. |
|
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//------------------------------------------------------------------------------------------------- |
|
|
//This program, a PHP script, creates thumbnail images for recognized |
|
|
//image files in the current working directory. This program is part of a |
|
|
//3-program suite designed to collectively create a web page directly from |
|
|
//digital camera files (and of course the web page can be customized by |
|
|
//hand-editing after it is automatically generated). The supported process for |
|
|
//creating a web page involves 3 programs (rather than 1) primarily to circumvent |
|
|
//the involuntary process termination that will occur in some shared environments |
|
|
//if a process consumes too much CPU time. |
|
|
// |
|
|
//The 3 programs in the 3-program suite are: |
|
|
// |
|
|
// filenames_canonize.php: |
|
|
// Converts all names of files in a directory to lower-case, and makes |
|
|
// substitutions for any unusual characters. |
|
|
// |
|
|
// thumbnails_make.php (this program): |
|
|
// Creates thumbnails from recognized image types. The thumbnails are |
|
|
// named relative to the original image file with the suffix "_small". |
|
|
// Only 20 files are converted on each invocation of the program, to |
|
|
// avoid the involuntary process termination that typically occurs in |
|
|
// a shared hosting environment when a process uses too much CPU time. |
|
|
// The program should be run repeatedly until it indicates that it has |
|
|
// no more thumbnails to create. |
|
|
// |
|
|
// If any full-sized photos are modified, any corresponding thumbnails |
|
|
// should be deleted and thumbnails_make.php and indexfile_make.php should |
|
|
// be run again. |
|
|
// |
|
|
// indexfile_make.php |
|
|
// Scans a directory and makes an index file ("index2.php") displaying |
|
|
// all the thumbnail images, each of which link to the corresponding |
|
|
// full-sized image. The index file is tailored to Dave Ashley's |
|
|
// needs, but the created file can be edited and most of the content |
|
|
// pasted into an HTML file. To avoid the accidental loss of |
|
|
// information, any existing "index2.php" file is renamed out of the |
|
|
// way. |
|
|
// |
|
|
//This script is designed to be run manually (rather than automatically invoked |
|
|
//as a result of a web page request). It was written in PHP for convenience |
|
|
//simply because DreamHost (the web hosting company Dave Ashley uses) has as part |
|
|
//of its hosting environment PHP with the ImageMagick library compiled in. |
|
|
// |
|
|
//Usually, this script is invoked using "php <path>/thumbnails_make.php", but the |
|
|
//method of invocation may vary based on computing platform details. |
|
|
//-------------------------------------------------------------------------------- |
|
|
//This program is free software: you can redistribute it and/or modify |
|
|
//it under the terms of the GNU General Public License as published by |
|
|
//the Free Software Foundation, either version 3 of the License, or |
|
|
//(at your option) any later version. |
|
|
// |
|
|
//This program is distributed in the hope that it will be useful, |
|
|
//but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
|
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
|
//GNU General Public License for more details. |
|
|
// |
|
|
//The GNU General Public License is reproduced below, and also is |
|
|
//available at http://www.gnu.org/licenses/. |
|
|
//-------------------------------------------------------------------------------- |
|
|
// GNU GENERAL PUBLIC LICENSE |
|
|
// Version 3, 29 June 2007 |
|
|
// |
|
|
// Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> |
|
|
// Everyone is permitted to copy and distribute verbatim copies |
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// of this license document, but changing it is not allowed. |
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// |
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|
// Preamble |
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|
// |
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|
// The GNU General Public License is a free, copyleft license for |
|
|
// software and other kinds of works. |
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// |
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|
// The licenses for most software and other practical works are designed |
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// to take away your freedom to share and change the works. By contrast, |
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|
// the GNU General Public License is intended to guarantee your freedom to |
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// share and change all versions of a program--to make sure it remains free |
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|
// software for all its users. We, the Free Software Foundation, use the |
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|
// GNU General Public License for most of our software; it applies also to |
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|
// any other work released this way by its authors. You can apply it to |
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// your programs, too. |
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// |
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|
// When we speak of free software, we are referring to freedom, not |
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// price. Our General Public Licenses are designed to make sure that you |
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// have the freedom to distribute copies of free software (and charge for |
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// them if you wish), that you receive source code or can get it if you |
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// want it, that you can change the software or use pieces of it in new |
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// free programs, and that you know you can do these things. |
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// |
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// To protect your rights, we need to prevent others from denying you |
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// these rights or asking you to surrender the rights. Therefore, you have |
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// you modify it: responsibilities to respect the freedom of others. |
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// |
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// For example, if you distribute copies of such a program, whether |
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// |
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// |
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// |
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// |
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// Finally, every program is threatened constantly by software patents. |
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// |
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// The precise terms and conditions for copying, distribution and |
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// modification follow. |
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// |
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// TERMS AND CONDITIONS |
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// |
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|
// 0. Definitions. |
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// |
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// "This License" refers to version 3 of the GNU General Public License. |
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// |
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// "Copyright" also means copyright-like laws that apply to other kinds of |
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// works, such as semiconductor masks. |
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// |
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// "The Program" refers to any copyrightable work licensed under this |
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// License. Each licensee is addressed as "you". "Licensees" and |
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// "recipients" may be individuals or organizations. |
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// |
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// To "modify" a work means to copy from or adapt all or part of the work |
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// in a fashion requiring copyright permission, other than the making of an |
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// exact copy. The resulting work is called a "modified version" of the |
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// |
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// A "covered work" means either the unmodified Program or a work based |
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// on the Program. |
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// |
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// To "propagate" a work means to do anything with it that, without |
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// permission, would make you directly or secondarily liable for |
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// infringement under applicable copyright law, except executing it on a |
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// public, and in some countries other activities as well. |
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// |
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// To "convey" a work means any kind of propagation that enables other |
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// parties to make or receive copies. Mere interaction with a user through |
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|
// a computer network, with no transfer of a copy, is not conveying. |
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// |
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// An interactive user interface displays "Appropriate Legal Notices" |
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// to the extent that it includes a convenient and prominently visible |
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// 1. Source Code. |
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// |
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// The "source code" for a work means the preferred form of the work |
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// A "Standard Interface" means an interface that either is an official |
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// |
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// "Major Component", in this context, means a major essential component |
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// |
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// The Corresponding Source need not include anything that users |
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// |
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// The Corresponding Source for a work in source code form is that |
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// |
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// 2. Basic Permissions. |
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// |
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// All rights granted under this License are granted for the term of |
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// copyright on the Program, and are irrevocable provided the stated |
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// |
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// You may make, run and propagate covered works that you do not |
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// in force. You may convey covered works to others for the sole purpose |
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// of having them make modifications exclusively for you, or provide you |
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// with facilities for running those works, provided that you comply with |
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// the terms of this License in conveying all material for which you do |
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// not control copyright. Those thus making or running the covered works |
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// for you must do so exclusively on your behalf, under your direction |
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// and control, on terms that prohibit them from making any copies of |
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// your copyrighted material outside their relationship with you. |
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// |
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// Conveying under any other circumstances is permitted solely under |
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// the conditions stated below. Sublicensing is not allowed; section 10 |
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// makes it unnecessary. |
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// |
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// 3. Protecting Users' Legal Rights From Anti-Circumvention Law. |
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// |
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// modification of the work as a means of enforcing, against the work's |
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// users, your or third parties' legal rights to forbid circumvention of |
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// technological measures. |
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// |
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// 4. Conveying Verbatim Copies. |
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// |
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// You may convey verbatim copies of the Program's source code as you |
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// receive it, in any medium, provided that you conspicuously and |
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// non-permissive terms added in accord with section 7 apply to the code; |
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// keep intact all notices of the absence of any warranty; and give all |
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// |
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|
|
// PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), |
|
|
// EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF |
|
|
// SUCH DAMAGES. |
|
|
// |
|
|
// 17. Interpretation of Sections 15 and 16. |
|
|
// |
|
|
// If the disclaimer of warranty and limitation of liability provided |
|
|
// above cannot be given local legal effect according to their terms, |
|
|
// reviewing courts shall apply local law that most closely approximates |
|
|
// an absolute waiver of all civil liability in connection with the |
|
|
// Program, unless a warranty or assumption of liability accompanies a |
|
|
// copy of the Program in return for a fee. |
|
|
//-------------------------------------------------------------------------------- |
|
|
//C O N F I G U R A T I O N |
|
|
//-------------------------------------------------------------------------------- |
|
|
//Configuration switch combinations were not tested. E-mail me any program |
|
|
//corrections (dashley@gmail.com). |
|
|
define ("CFG_PROGNAME", "thumbnails_make.php"); |
|
|
//Number of characters per line preferred for console output. |
|
|
define ("CFG_CONSOLE_STD_LINE_LEN", 78); |
|
|
//Number of characters per line preferred for console output. |
|
|
define ("CFG_THUMBNAIL_DIMENSION_MAX", 125); |
|
|
//The maximum dimension of the created thumbnails. Thumbnails are sized so |
|
|
//that the longest dimension is this many pixels. |
|
|
define ("CFG_THUMBNAIL_BEVELED_BORDER_WIDTH", 4); |
|
|
//The number of pixels that the thumbnail beveled borders should be. |
|
|
define ("CFG_THUMBNAIL_FILENAME_SUFFIX", "_small"); |
|
|
//String added just before the filename extension to choose thumbnail names |
|
|
//based on name of full-sized image. |
|
|
define ("CFG_LANCZOS_FILTER_APPLY", FALSE); |
|
|
//TRUE if should apply the Lanczos filter when making the thumbnail, FALSE |
|
|
//otherwise. I have no idea if using a Lanczos filter improves the quality |
|
|
//of the thumbnails, but the filter was applied in the PHP example I found |
|
|
//online. Applying the Lanczos filter typically adds a few seconds to the |
|
|
//time required to create each thumbnail. |
|
|
define ("CFG_MAX_THUMBNAILS_PER_INVOCATION", 20); |
|
|
//The maximum number of thumbnails that should be created per invocation. |
|
|
//This is to prevent the program from being involuntarily terminated |
|
|
//for taking too much CPU time. |
|
|
//-------------------------------------------------------------------------------- |
|
|
//Calculates important integer indices related to creating a thumbnail, in order |
|
|
//to minimize distortion in the thumbnail. |
|
|
// |
|
|
//When creating a thumbnail, the longer side may be relatively short (perhaps |
|
|
//100 pixels), and the shorter side may be even shorter (perhaps even as short |
|
|
//as 10 pixels). If the dimensions of the original image were not changed, |
|
|
//converting the image to a thumbnail may result in distortion of up to about |
|
|
//one percent. As an example, suppose that a 1600 x 900 image is converted to a |
|
|
//thumbnail with the longer side of 125 pixels. The ideal dimension for the |
|
|
//shorter side would be (900/1600) * 125 = 70.3125 pixels. The aspect ratio of |
|
|
//the thumbnail can't be made to match the aspect ratio of the original image. |
|
|
// |
|
|
//To avoid any aspect ratio distortion that might be noticeable, this program |
|
|
//chooses the shorter dimension for the thumbnail that is the ceiling of the actual |
|
|
//quotient, then crops the longer dimension of the original image before the |
|
|
//conversion to try and match the aspect ratios as closely as possible. |
|
|
// |
|
|
//In the example a paragraph or two above, the shorter side of the thumbnail |
|
|
//would be chosen to be 71 pixels. |
|
|
// |
|
|
//Once this choice is made, we want to trim the original image before conversion |
|
|
//so that n/900 is as close as possible to 125/71. n = (900 * 125) / 71 = |
|
|
//1584.5070 pixels, so we choose 1585. This keeps the aspect ratio of the |
|
|
//original image and the thumbnail as close as possible. |
|
|
// |
|
|
//Although the longer side of the original image may be reduced prior to the |
|
|
//conversion to a thumbnail, this information is not written to disk, and |
|
|
//the original image is not modified. The adjustment of the longer side is |
|
|
//just a conversion trick to hopefully get better thumbnails. |
|
|
function calc_thumbnail_conversion_pars |
|
|
( |
|
|
$in_orig_longer, |
|
|
//Longer dimension of original image. |
|
|
$in_orig_shorter, |
|
|
//Shorter dimension of original image. |
|
|
$in_thumbnail_longer, |
|
|
//Longer dimension of desired thumbnail. |
|
|
& $out_thumbnail_longer, |
|
|
//Longer dimension of thumbnail that should be created. |
|
|
& $out_thumbnail_shorter, |
|
|
//Shorter dimension of thumbnail that should be created. |
|
|
& $out_orig_crop_dim_longer, |
|
|
//The size to crop to on the longer axis of the original. |
|
|
& $out_orig_crop_dim_shorter, |
|
|
//The size to crop to on the shorter axis of the original. |
|
|
& $out_orig_crop_start_longer, |
|
|
//For use with the Imagick:cropImage() method, the start |
|
|
//position of the crop on the longer axis. |
|
|
& $out_orig_crop_start_shorter |
|
|
//For use with the Imagick:cropImage() method, the start |
|
|
//position of the crop on the shorter axis. |
|
|
) |
|
|
{ |
|
|
//Set the thumbnail shorter dimension to the floor. This means would need to trim |
|
|
//longest dimension of original to match aspect ratio as closely as possible. |
|
|
$out_thumbnail_longer = $in_thumbnail_longer; |
|
|
$out_thumbnail_shorter = ceil(((float)$in_thumbnail_longer * |
|
|
(float)$in_orig_shorter) / (float)$in_orig_longer); |
|
|
settype($out_thumbnail_shorter, "integer"); |
|
|
|
|
|
//The aspect ratio of the thumbnail is now set. Try to match the aspect ratio of the larger |
|
|
//image as closely as possible by selecting a smaller number for the long axis of the |
|
|
//original image. |
|
|
$out_orig_crop_dim_longer = round(((float)$in_thumbnail_longer * |
|
|
(float)$in_orig_shorter) / (float)$out_thumbnail_shorter); |
|
|
settype($out_orig_crop_dim_longer, "integer"); |
|
|
|
|
|
//The original keeps its shorter dimension unchanged. |
|
|
$out_orig_crop_dim_shorter = $in_orig_shorter; |
|
|
|
|
|
//Set the cropping of the longer side of the original to cover half the necessary |
|
|
//reduction. |
|
|
$out_orig_crop_start_longer = round(((float)$in_orig_longer - |
|
|
(float)$out_orig_crop_dim_longer) / 2.0); |
|
|
settype($out_orig_crop_start_longer, "integer"); |
|
|
|
|
|
//No cropping of original shorter side. |
|
|
$out_orig_crop_start_shorter = 0; |
|
|
} |
|
|
//-------------------------------------------------------------------------------- |
|
|
//Repeats a character to the console output a certain number of times. |
|
|
function rep_char_con($c, $n) |
|
|
{ |
|
|
while ($n--) |
|
|
echo $c; |
|
|
} |
|
|
//-------------------------------------------------------------------------------- |
|
|
//Writes a standard thick horizontal line to the console. |
|
|
function hor_line_thick() |
|
|
{ |
|
|
rep_char_con("=", CFG_CONSOLE_STD_LINE_LEN); |
|
|
echo "\n"; |
|
|
} |
|
|
//-------------------------------------------------------------------------------- |
|
|
//Writes a standard thin horizontal line to the console. |
|
|
function hor_line_thin() |
|
|
{ |
|
|
rep_char_con("-", CFG_CONSOLE_STD_LINE_LEN); |
|
|
echo "\n"; |
|
|
} |
|
|
//-------------------------------------------------------------------------------- |
|
|
//Returns an array of all files in the working directory. |
|
|
//If no files can be found, returns FALSE. |
|
|
function get_file_names_in_dir() |
|
|
{ |
|
|
//Get directory list. |
|
|
$rv = scandir ("."); |
|
|
|
|
|
//If the list is empty, something went wrong. Return FALSE. |
|
|
if ($rv === FALSE) |
|
|
return FALSE; |
|
|
|
|
|
return $rv; |
|
|
} |
|
|
//-------------------------------------------------------------------------------- |
|
|
//Returns TRUE if a file name appears to be a valid full-sized image name, |
|
|
//or FALSE otherwise. |
|
|
function is_full_sized_image_file_name($in_filename) |
|
|
{ |
|
|
//Convert the string name to all lower case. This will do for |
|
|
//comparisons and tests. |
|
|
$s = strtolower($s); |
|
|
|
|
|
//Attempt to split the name into a base and an extension. Any failure |
|
|
//means it is an unsuitable name. |
|
|
$extension_start = strrpos($in_filename, "."); |
|
|
//Find position of last "." in string. This should precede the |
|
|
//file extension. |
|
|
|
|
|
if ($extension_start === FALSE) |
|
|
{ |
|
|
//Bad name. Unsuitable. |
|
|
return FALSE; |
|
|
} |
|
|
|
|
|
//Calculate the base and extension. |
|
|
$filename_base = substr($in_filename, 0, $extension_start); |
|
|
$filename_extension = substr($in_filename, $extension_start + 1); |
|
|
|
|
|
//If the extension is neither "jpg" nor "jpeg", it is unsuitable. |
|
|
if (($filename_extension != "jpg") && ($filename_extension != "jpeg")) |
|
|
return FALSE; |
|
|
|
|
|
//If the filename base is empty, the filename is unsuitable. |
|
|
if (strlen($filename_base) == 0) |
|
|
return FALSE; |
|
|
|
|
|
//If the last characters of the base are the CFG_THUMBNAIL_FILENAME_SUFFIX, |
|
|
//the name is unsuitable. |
|
|
if (strlen($filename_base) >= strlen(CFG_THUMBNAIL_FILENAME_SUFFIX)) |
|
|
{ |
|
|
if (substr($filename_base, strlen($filename_base) - strlen(CFG_THUMBNAIL_FILENAME_SUFFIX)) |
|
|
== CFG_THUMBNAIL_FILENAME_SUFFIX) |
|
|
return FALSE; |
|
|
} |
|
|
|
|
|
//Looks good. |
|
|
return TRUE; |
|
|
} |
|
|
//-------------------------------------------------------------------------------- |
|
|
//As a function of the file name, creates the file name for the thumbnail. |
|
|
function file_name_to_thumbnail_name($in_filename) |
|
|
{ |
|
|
$extension_start = strrpos($in_filename, "."); |
|
|
//Find position of last "." in string. This should precede the |
|
|
//file extension. |
|
|
if ($extension_start === FALSE) |
|
|
{ |
|
|
//"." not found. Should not happen. Filenames were checked in advance. |
|
|
echo "Fatal internal error at line " . __LINE__ . "\n"; |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
$filename_prefix = substr($in_filename, 0, $extension_start); |
|
|
$filename_extension = substr($in_filename, $extension_start); |
|
|
|
|
|
$rv = $filename_prefix . CFG_THUMBNAIL_FILENAME_SUFFIX . $filename_extension; |
|
|
|
|
|
return $rv; |
|
|
} |
|
|
//-------------------------------------------------------------------------------- |
|
|
//Actually creates the thumbnail, and returns some information about what was |
|
|
//done. |
|
|
// |
|
|
//The calls to the ImagMagick library take on the order of 5s per image if there |
|
|
//is filtering. |
|
|
function create_thumbnail( $in_filename, |
|
|
$in_thumbnailname, |
|
|
& $out_filename_filesize, |
|
|
& $out_filename_xdim, |
|
|
& $out_filename_ydim, |
|
|
& $out_thumbnailname_filesize, |
|
|
& $out_thumbnailname_xdim, |
|
|
& $out_thumbnailname_ydim) |
|
|
{ |
|
|
//Assign output parameters just in case something doesn't get assigned. |
|
|
$out_filename_filesize = 0; |
|
|
$out_filename_xdim = 0; |
|
|
$out_filename_ydim = 0; |
|
|
$out_thumbnailname_filesize = 0; |
|
|
$out_thumbnailname_xdim = 0; |
|
|
$out_thumbnailname_ydim = 0; |
|
|
|
|
|
//Establish target dimensions. Two cases, depending on which is the longer |
|
|
//side. |
|
|
|
|
|
//Construct. |
|
|
$imagick = new Imagick(); |
|
|
|
|
|
//Load image. |
|
|
$imagick->readImage($in_filename); |
|
|
|
|
|
//Get the dimensions of the image we just loaded. |
|
|
$geo = $imagick->getImageGeometry(); |
|
|
$out_filename_xdim = $geo['width']; |
|
|
$out_filename_ydim = $geo['height']; |
|
|
|
|
|
//Calculate target sizes. We rearrange parameters based on which is our |
|
|
//longest side. |
|
|
if ($out_filename_xdim >= $out_filename_ydim) |
|
|
{ |
|
|
//Longer width (x-dimension), or square. |
|
|
calc_thumbnail_conversion_pars |
|
|
( |
|
|
$out_filename_xdim, |
|
|
$out_filename_ydim, |
|
|
CFG_THUMBNAIL_DIMENSION_MAX, |
|
|
$out_thumbnailname_xdim, |
|
|
$out_thumbnailname_ydim, |
|
|
$orig_crop_dim_x, |
|
|
$orig_crop_dim_y, |
|
|
$orig_crop_start_x, |
|
|
$orig_crop_start_y |
|
|
); |
|
|
} |
|
|
else |
|
|
{ |
|
|
//Longer height (y-dimension). |
|
|
calc_thumbnail_conversion_pars |
|
|
( |
|
|
$out_filename_ydim, |
|
|
$out_filename_xdim, |
|
|
CFG_THUMBNAIL_DIMENSION_MAX, |
|
|
$out_thumbnailname_ydim, |
|
|
$out_thumbnailname_xdim, |
|
|
$orig_crop_dim_y, |
|
|
$orig_crop_dim_x, |
|
|
$orig_crop_start_y, |
|
|
$orig_crop_start_x |
|
|
); |
|
|
} |
|
|
|
|
|
//For debugging only, might want to know intermediate calculation results. |
|
|
//echo "xcropdim, ycropdim, xcropstart, ycropstart: " |
|
|
// . |
|
|
// $orig_crop_dim_x |
|
|
// . |
|
|
// " " |
|
|
// . |
|
|
// $orig_crop_dim_y |
|
|
// . |
|
|
// " " |
|
|
// . |
|
|
// $orig_crop_start_x |
|
|
// . |
|
|
// " " |
|
|
// . |
|
|
// $orig_crop_start_y |
|
|
// . |
|
|
// "\n"; |
|
|
|
|
|
//Crop the original to try to preserve the aspect ratio of the thumbnail |
|
|
//as precisely as possible. |
|
|
$imagick->cropImage( |
|
|
$orig_crop_dim_x, |
|
|
$orig_crop_dim_y, |
|
|
$orig_crop_start_x, |
|
|
$orig_crop_start_y |
|
|
); |
|
|
|
|
|
//For debugging only, might want to get a look at the cropped image, to |
|
|
//be sure nothing unexpected happens on the canvas. |
|
|
//$imagick->writeImage($in_filename . ".cropped.jpg"); |
|
|
|
|
|
//Resize to thumbnail size. |
|
|
if (CFG_LANCZOS_FILTER_APPLY) |
|
|
{ |
|
|
$imagick->resizeImage($out_thumbnailname_xdim, |
|
|
$out_thumbnailname_ydim, |
|
|
Imagick::FILTER_LANCZOS, |
|
|
1); |
|
|
} |
|
|
else |
|
|
{ |
|
|
$imagick->resizeImage($out_thumbnailname_xdim, |
|
|
$out_thumbnailname_ydim, |
|
|
0, |
|
|
1); |
|
|
} |
|
|
|
|
|
//Create the border. |
|
|
$imagick->raiseImage(CFG_THUMBNAIL_BEVELED_BORDER_WIDTH, |
|
|
CFG_THUMBNAIL_BEVELED_BORDER_WIDTH, |
|
|
0, |
|
|
0, |
|
|
1); |
|
|
|
|
|
//Set compression to get a smaller thumbnail written, and strip |
|
|
//header information. stripImage() seems to have the largest effect |
|
|
//on thumbnail file size, so leaving the thumbnail quality near 100% |
|
|
//is feasible. The jump in file size between 90% and 95% seemed to be |
|
|
//fairly large (40% to 50%), so I left it at 90%. My rationale is |
|
|
//that with the proliferation of mobile devices and cellular data, |
|
|
//getting the thumbnail as small as possible is more important than |
|
|
//the thumbnail looking perfect. If the viewer wants a perfect image, |
|
|
//they can view the full-sized image. |
|
|
$imagick->setImageCompression(Imagick::COMPRESSION_JPEG); |
|
|
$imagick->setImageCompressionQuality(90); |
|
|
$imagick->stripImage(); |
|
|
|
|
|
//Write the thumbnail. |
|
|
$imagick->writeImage($in_thumbnailname); |
|
|
|
|
|
//Destroy to prevent memory leak. |
|
|
$imagick->clear(); |
|
|
$imagick->destroy(); |
|
|
|
|
|
//All of the writing is done. Try to obtain the file sizes. |
|
|
$fsize = filesize($in_filename); |
|
|
if ($fsize !== FALSE) |
|
|
$out_filename_filesize = $fsize; |
|
|
$fsize = filesize($in_thumbnailname); |
|
|
if ($fsize !== FALSE) |
|
|
$out_thumbnailname_filesize = $fsize; |
|
|
} |
|
|
//-------------------------------------------------------------------------------- |
|
|
//Write introductory message. |
|
|
hor_line_thick(); |
|
|
echo CFG_PROGNAME . " Copyright (C) 2015 David T. Ashley\n"; |
|
|
echo "This program comes with ABSOLUTELY NO WARRANTY; and is licensed under\n"; |
|
|
echo "the GNU General Public License, Version 3. A copy of this license is\n"; |
|
|
echo "provided in the source code of this program.\n"; |
|
|
hor_line_thin(); |
|
|
//----------------------------------------------------------------------------- |
|
|
//Get and emit the names of everything in the directory. |
|
|
$file_list = get_file_names_in_dir(); |
|
|
if ($file_list === FALSE) |
|
|
{ |
|
|
echo "List of files from PHP function scandir() is empty.\n"; |
|
|
echo "Serious internal error, or nothing to do. Script cannot continue.\n"; |
|
|
hor_line_thick(); |
|
|
exit(1); |
|
|
} |
|
|
else |
|
|
{ |
|
|
echo "Files in working directory (unsorted, unfiltered, " |
|
|
. |
|
|
count($file_list) |
|
|
. |
|
|
" files):\n"; |
|
|
for ($i = 0; $i < count($file_list); $i++) |
|
|
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . "\n"; |
|
|
} |
|
|
hor_line_thin(); |
|
|
//----------------------------------------------------------------------------- |
|
|
//Remove the standard directory entries "." and ".." from the list, and |
|
|
//remove any directories. |
|
|
$temp_list = $file_list; |
|
|
unset($file_list); |
|
|
$n = 0; |
|
|
for ($i = 0; $i < count($temp_list); $i++) |
|
|
{ |
|
|
//echo "Checking " . $temp_list[$i] . "\n"; |
|
|
|
|
|
if (strcmp($temp_list[$i], ".") == 0) |
|
|
{ |
|
|
//. entry, not a file. |
|
|
} |
|
|
else if (strcmp($temp_list[$i], "..") == 0) |
|
|
{ |
|
|
//.. entry, not a file. |
|
|
} |
|
|
else if (is_file($temp_list[$i])) |
|
|
{ |
|
|
//This is a regular file. |
|
|
$file_list[] = $temp_list[$i]; |
|
|
$n++; |
|
|
} |
|
|
} |
|
|
|
|
|
if ($n == 0) |
|
|
$file_list = FALSE; |
|
|
|
|
|
unset($n); |
|
|
unset($temp_list); |
|
|
//----------------------------------------------------------------------------- |
|
|
//If there is nothing to do, end the script. |
|
|
if ($file_list === FALSE) |
|
|
{ |
|
|
echo "No files to process.\n"; |
|
|
hor_line_thick(); |
|
|
exit(0); |
|
|
} |
|
|
//----------------------------------------------------------------------------- |
|
|
//Sort the list. This is a non-event. The only rationale for sorting is that |
|
|
//it ensures that the same set of files will be processed in the same order, |
|
|
//regardless of the order provided by the underlying OS internals. |
|
|
sort($file_list); |
|
|
//----------------------------------------------------------------------------- |
|
|
//Emit the names we now have. |
|
|
echo "Files in working directory (directory entries removed, sorted, " |
|
|
. |
|
|
count($file_list) |
|
|
. |
|
|
" files):\n"; |
|
|
for ($i = 0; $i < count($file_list); $i++) |
|
|
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . "\n"; |
|
|
hor_line_thin(); |
|
|
|
|
|
//----------------------------------------------------------------------------- |
|
|
//For each file that is appropriate and where the thumbnail does not already |
|
|
//exist, up to the maximum we may do in one invocation, create the thumbnail. |
|
|
$i = 0; |
|
|
$completed = 0; |
|
|
while (($completed < CFG_MAX_THUMBNAILS_PER_INVOCATION) && ($i < count($file_list))) |
|
|
{ |
|
|
if (is_full_sized_image_file_name($file_list[$i])) |
|
|
{ |
|
|
$thumbnail_name = file_name_to_thumbnail_name($file_list[$i]); |
|
|
|
|
|
if (file_exists($thumbnail_name)) |
|
|
{ |
|
|
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . " : skipping because corresponding thumbnail exists.\n"; |
|
|
hor_line_thin(); |
|
|
} |
|
|
else |
|
|
{ |
|
|
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . " : creating thumbnail.\n"; |
|
|
|
|
|
echo "Creating thumbnail \"" . |
|
|
$thumbnail_name . |
|
|
"\" from image \"" . |
|
|
$file_list[$i] . |
|
|
"\".\n"; |
|
|
|
|
|
create_thumbnail($file_list[$i], |
|
|
$thumbnail_name, |
|
|
$filename_filesize, |
|
|
$filename_xdim, |
|
|
$filename_ydim, |
|
|
$thumbnail_filesize, |
|
|
$thumbnail_xdim, |
|
|
$thumbnail_ydim); |
|
|
|
|
|
echo "Conversion complete.\n"; |
|
|
echo " Full-sized image file size/xdim/ydim = " . |
|
|
$filename_filesize . "/" . $filename_xdim . "/" . $filename_ydim . |
|
|
",\n"; |
|
|
echo " Thumbnail image filesize/xdim/ydim = " . |
|
|
$thumbnail_filesize . "/" . $thumbnail_xdim . "/" . $thumbnail_ydim . |
|
|
",\n"; |
|
|
|
|
|
hor_line_thin(); |
|
|
$completed++; |
|
|
} |
|
|
} |
|
|
else |
|
|
{ |
|
|
//Unsuitable base name. Can't use it. |
|
|
echo " " . sprintf("[%5d]", $i) . " " . $file_list[$i] . " : skipping due to unsuitable name.\n"; |
|
|
hor_line_thin(); |
|
|
} |
|
|
|
|
|
$i++; |
|
|
} |
|
|
|
|
|
//Emit a message about whether the program should be run again. I am aware of |
|
|
//the uncovered case--where the last thumbnail was made on the last iteration |
|
|
//of this invocation--but I will leave it uncovered for now. All that happens |
|
|
//is the user runs the program unnecessarily one more time. |
|
|
if ($completed == 0) |
|
|
{ |
|
|
echo "No thumbnails were created--this program is done creating thumbnails.\n"; |
|
|
echo "It is not necessary to run this program again.\n"; |
|
|
hor_line_thin(); |
|
|
} |
|
|
else |
|
|
{ |
|
|
echo $completed . " thumbnail(s) were created. Please run this program repeatedly again\n"; |
|
|
echo "until no more thumbnails are created.\n"; |
|
|
hor_line_thin(); |
|
|
} |
|
|
|
|
|
echo CFG_PROGNAME . " execution ends.\n"; |
|
|
hor_line_thick(); |
|
|
//-------------------------------------------------------------------------------- |
|
|
//End of File |
|
|
//-------------------------------------------------------------------------------- |
|
|
?> |
|