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Merge pull request 'Add double-density support to photo thumbnails' (#28) from improve_thumbs into master

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Reviewed-on: Public/pics#28
This commit is contained in:
Aaron van Geffen 2022-11-27 14:38:21 +01:00
commit d66f071aab
7 changed files with 75 additions and 45 deletions
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2
models/Database.php
View File

@ -488,7 +488,7 @@ class Database
/**
* This function can be used to insert data into the database in a secure way.
*/
public function insert($method = 'replace', $table, $columns, $data)
public function insert($method, $table, $columns, $data)
{
// With nothing to insert, simply return.
if (empty($data))

6
models/GenericTable.php
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@ -43,7 +43,7 @@ class GenericTable
$this->start = empty($options['start']) || !is_numeric($options['start']) || $options['start'] < 0 || $options['start'] > $this->recordCount ? 0 : $options['start'];
// Figure out where we are on the whole, too.
$numPages = ceil($this->recordCount / $this->items_per_page);
$numPages = max(1, ceil($this->recordCount / $this->items_per_page));
$this->currentPage = min(ceil($this->start / $this->items_per_page) + 1, $numPages);
// Let's bear a few things in mind...
@ -234,7 +234,9 @@ class GenericTable
else
$pattern = $options['data']['pattern'];
if (!is_numeric($rowData[$options['data']['timestamp']]))
if (!isset($rowData[$options['data']['timestamp']]))
$timestamp = 0;
elseif (!is_numeric($rowData[$options['data']['timestamp']]))
$timestamp = strtotime($rowData[$options['data']['timestamp']]);
else
$timestamp = (int) $rowData[$options['data']['timestamp']];

30
models/Image.php
View File

@ -67,14 +67,33 @@ class Image extends Asset
return EXIF::fromFile($this->getPath());
}
public function getPath()
public function getImageUrls($width = null, $height = null)
{
return ASSETSDIR . '/' . $this->subdir . '/' . $this->filename;
$image_urls = [];
if (isset($width) || isset($height))
{
$thumbnail = new Thumbnail($this);
$image_urls[1] = $this->getThumbnailUrl($width, $height, false);
// Can we afford to generate double-density thumbnails as well?
if ((!isset($width) || $this->image_width >= $width * 2) &&
(!isset($height) || $this->image_height >= $height * 2))
$image_urls[2] = $this->getThumbnailUrl($width * 2, $height * 2, false);
else
$image_urls[2] = $this->getThumbnailUrl($this->image_width, $this->image_height, true);
}
else
$image_urls[1] = $this->getUrl();
return $image_urls;
}
public function getUrl()
public function getInlineImage($width = null, $height = null, $className = 'inline-image')
{
return ASSETSURL . '/' . $this->subdir . '/' . $this->filename;
$image_urls = $this->getImageUrls($width, $height);
return '<img class="' . $className . '" src="' . $image_urls[1] . '" alt=""' .
(isset($image_urls[2]) ? ' srcset="' . $image_urls[2] . ' 2x"' : '') . '>';
}
/**
@ -141,7 +160,8 @@ class Image extends Asset
}
return Registry::get('db')->query('
DELETE FROM assets_thumbs
UPDATE assets_thumbs
SET filename = NULL
WHERE id_asset = {int:id_asset}',
['id_asset' => $this->id_asset]);
}

4
models/PageIndex.php
View File

@ -63,9 +63,9 @@ class PageIndex
lower current/cont. pgs. center upper
*/
$this->num_pages = ceil($this->recordCount / $this->items_per_page);
$this->num_pages = max(1, ceil($this->recordCount / $this->items_per_page));
$this->current_page = min(ceil($this->start / $this->items_per_page) + 1, $this->num_pages);
if ($this->num_pages == 0)
if ($this->num_pages <= 1)
{
$this->needsPageIndex = false;
return;

62
models/Thumbnail.php
View File

@ -9,6 +9,7 @@
class Thumbnail
{
private $image;
private $image_meta;
private $thumbnails;
private $properly_initialised;
@ -23,7 +24,7 @@ class Thumbnail
const CROP_MODE_SLICE_CENTRE = 4;
const CROP_MODE_SLICE_BOTTOM = 5;
public function __construct($image)
public function __construct(Image $image)
{
$this->image = $image;
$this->image_meta = $image->getMeta();
@ -45,51 +46,45 @@ class Thumbnail
$thumb_selector = $this->width . 'x' . $this->height . $this->filename_suffix;
if (!empty($this->thumbnails[$thumb_selector]))
{
$thumb_path = '/' . $this->image->getSubdir() . '/' . $this->thumbnails[$thumb_selector];
if (file_exists(THUMBSDIR . $thumb_path))
return THUMBSURL . $thumb_path;
$thumb_filename = $this->image->getSubdir() . '/' . $this->thumbnails[$thumb_selector];
if (file_exists(THUMBSDIR . '/' . $thumb_filename))
return THUMBSURL . '/' . $thumb_filename;
}
// Do we have a custom thumbnail on file?
$custom_selector = 'custom_' . $this->width . 'x' . $this->height;
if (isset($this->image_meta[$custom_selector]))
{
$custom_thumb_path = '/' . $this->image->getSubdir() . '/' . $this->image_meta[$custom_selector];
if (file_exists(ASSETSDIR . $custom_thumb_path))
$custom_filename = $this->image->getSubdir() . '/' . $this->image_meta[$custom_selector];
if (file_exists(ASSETSDIR . '/' . $custom_filename))
{
// Ensure destination thumbnail directory exists.
if (!file_exists($this->image->getSubdir()))
@mkdir(THUMBSDIR . '/' . $this->image->getSubdir(), 0755, true);
// Copy the custom thumbail to the general thumbnail directory.
copy(ASSETSDIR . $custom_thumb_path, THUMBSDIR . $custom_thumb_path);
copy(ASSETSDIR . '/' . $custom_filename, THUMBSDIR . '/' . $custom_filename);
// Let's remember this for future reference.
$this->markAsGenerated($this->image_meta[$custom_selector]);
return THUMBSURL . $custom_thumb_path;
return THUMBSURL . '/' . $custom_filename;
}
else
throw new UnexpectedValueException('Custom thumbnail expected, but missing in file system!');
}
// Is this the right moment to generate a thumbnail, then?
if ($generate && array_key_exists($thumb_selector, $this->thumbnails))
if ($generate)
{
return $this->generate();
if (array_key_exists($thumb_selector, $this->thumbnails))
return $this->generate();
else
throw new Exception("Trying to generate a thumbnail not previously queued by the system\n" .
print_r(func_get_args(), true));
}
// If not, queue it for generation at another time, and return a URL to generate it with.
elseif (!$generate)
{
$this->markAsQueued();
return BASEURL . '/thumbnail/' . $this->image->getId() . '/' . $this->width . 'x' . $this->height . $this->filename_suffix . '/';
}
// Still here..? What are you up to? ..Sneaking?
else
{
throw new Exception("Trying to generate a thumbnail for selector " . $thumb_selector . ", which does not appear to have been requested by the system.\n" . print_r(func_get_args(), true));
$this->markAsQueued();
return BASEURL . '/thumbnail/' . $this->image->getId() . '/' . $thumb_selector . '/';
}
}
@ -260,14 +255,18 @@ class Thumbnail
'_' . $this->width . 'x' . $this->height . $this->filename_suffix . '.' . $ext;
// Ensure the thumbnail subdirectory exists.
if (!is_dir(THUMBSDIR . '/' . $this->image->getSubdir()))
mkdir(THUMBSDIR . '/' . $this->image->getSubdir(), 0755, true);
$target_dir = THUMBSDIR . '/' . $this->image->getSubdir();
if (!is_dir($target_dir))
mkdir($target_dir, 0755, true);
if (!is_writable($target_dir))
throw new Exception('Thumbnail directory is not writable!');
// No need to preserve every detail.
$thumb->setImageCompressionQuality(80);
// Save it in a public spot.
$thumb->writeImage(THUMBSDIR . '/' . $this->image->getSubdir() . '/' . $thumb_filename);
$thumb->writeImage($target_dir . '/' . $thumb_filename);
// Let's remember this for future reference...
$this->markAsGenerated($thumb_filename);
@ -278,7 +277,6 @@ class Thumbnail
// Finally, return the URL for the generated thumbnail image.
return THUMBSURL . '/' . $this->image->getSubdir() . '/' . $thumb_filename;
}
// Blast! Curse your sudden but inevitable betrayal!
catch (ImagickException $e)
{
throw new Exception('ImageMagick error occurred while generating thumbnail. Output: ' . $e->getMessage());
@ -336,10 +334,16 @@ class Thumbnail
if ($success)
{
$thumb_selector = $this->width . 'x' . $this->height . $this->filename_suffix;
$this->thumbnails[$thumb_selector] = $filename !== 'NULL' ? $filename : '';
}
$this->thumbnails[$thumb_selector] = $filename !== 'NULL' ? $filename : null;
return $success;
// For consistency, write new thumbnail filename to parent Image object.
// TODO: there could still be an inconsistency if multiple objects exists for the same image asset.
$this->image->getThumbnails()[$thumb_selector] = $this->thumbnails[$thumb_selector];
return $success;
}
else
throw new UnexpectedValueException('Thumbnail queuing query failed');
}
private function markAsQueued()

6
templates/PhotoPage.php
View File

@ -65,11 +65,9 @@ class PhotoPage extends SubTemplate
<a href="', $this->photo->getUrl(), '">';
if ($this->photo->isPortrait())
echo '
<img src="', $this->photo->getThumbnailUrl(null, 960), '" alt="">';
echo $this->photo->getInlineImage(null, 960);
else
echo '
<img src="', $this->photo->getThumbnailUrl(1280, null), '" alt="">';
echo $this->photo->getInlineImage(1280, null);
echo '
</a>

10
templates/PhotosIndex.php
View File

@ -90,8 +90,14 @@ class PhotosIndex extends SubTemplate
<a class="edit" href="', BASEURL, '/editasset/?id=', $image->getId(), '">Edit</a>';
echo '
<a href="', $image->getPageUrl(), $this->url_suffix, '">
<img src="', $image->getThumbnailUrl($width, $height, $crop, $fit), '" alt="" title="', $image->getTitle(), '">';
<a href="', $image->getPageUrl(), $this->url_suffix, '#photo_frame">
<img src="', $image->getThumbnailUrl($width, $height, $crop, $fit), '"';
// Can we offer double-density thumbs?
if ($image->width() >= $width * 2 && $image->height() >= $height * 2)
echo ' srcset="', $image->getThumbnailUrl($width * 2, $height * 2, $crop, $fit), ' 2x"';
echo ' alt="" title="', $image->getTitle(), '">';
if ($this->show_labels)
echo '