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Package annotator
Short Description Place pins / define zones on an image synced with a structure field
License MIT
Informations about the package annotator
Kirby – Annotator
This plugin allows you to add notes to images by pinning them to specific coordinates / areas. Compatible with Kirby 3 and 4.
Overview
This plugin is completely free and published under the MIT license. However, if you are using it in a commercial project and want to help me keep up with maintenance, please consider making a donation of your choice or purchasing your license(s) through my affiliate link.
- 1. Installation
- 2. Blueprint usage
- 3. Options
- 3.1. Display options
- 3.2. Storage options
- 4. Template usage
- 4.1. How are the informations stored?
- 4.2. Methods and functions
- 4.3. Basic usage example
- 5. License
- 6. Crédits
TLDR – Just get me started 👀
- Blueprint example
- Template example
1. Installation
If you are looking to use this field with Kirby 2, please switch to the
kirby-2
branch.
Download and copy this repository to
Alternatively, you can install it with composer:
2. Blueprint usage
The annotator is a section which doesn't store any information itself. It provides an interface to manipulate content from other fields. Here's a basic setup of the plugin within your blueprint:
2.1. Basic example
2.2. Complete example
With all the default options explicitely set:
Note that if you set your color storage field to
disabled: true
as was previously shown in this example, the value won't be updated anymore with Kirby 3.5+. You'll need to disable it from within a custom panel CSS (opacity: .35; pointer-events: none;
for example).
2.3. Usage within a file page
You can use this plugin within a file page by setting it like stated above, but skipping the src
option within the storage
settings. The plugin will automatically detect the image of the given page.
3. Options
3.1. Display options
See to the complete example above to see how to use them.
• Tools
type:
array
, default: all tools listed above
You have 3 tools available : pin
, rect
and circle
. All of them are visible by default, at least one should be provided.
• Colors
type:
array
, default: all colors listed above
You have 6 predefined colors available to choose from. All of them are visible by default, at least one should be provided. If there's no color storage specified, the first color of the list will be used on load.
• Theme
type:
string
, default:light
You have two themes available, a dark and a light one.
• Zoom
type:
boolean
, default:false
When set to true
, a Zoom button will show in the toolbar. On click, it will toggle the full size of the image, allowing you to set the marker even more precisely (desktop only).
• Double-click
type:
boolean
, default:false
When set to true
, pins will only be added when double-clicking on the image, to prevent adding a pin accidentally. Note that this option will only be work when using the pin
tool.
• Debug
type:
boolean
, default:false
When set to true
, mouse coordinates will be shown in real-time in the toolbar. Not needed unless you're trying to extend some functionality.
3.2. Storage options
• Image file
The section needs to be synced with a field returning an image url to work with.
In theory, using a field might work, but I strongly recommend using a field and limiting it to a single file. Not only does it look nicer, but most importantly it returns an absolute url of the file:
Note: You don’t need to explicitly set a value, though it may look clearer. When confronted to a files field containing multiple files, the plugin will always use the first one.
• Markers structure
The plugin needs an associated structure field to store the markers informations. It has 5 reserved fields that shouldn't be used for any other purpose: type
, x
, y
,w
and h
. Those will be automatically set and don't need to be explicitely specified unless you want to show them within the panel:
Otherwise, you can directly start adding fields you'd like to sync content with:
• Min / Max
You can limit the number of markers by setting the max
option in the annotator section's options.
If you want to set a minimum number of markers, set the min
option directly within the structure field's options.
• Translate
If you don't want to be able to move pins on translated pages, you can use the translate
option. Note that your associated structure field will still be editable, unless you set its own translate
option.
• Color
Without any associated color
field, the plugin won't remember the last color used within the editor, and will always fallback to the first one when loading the component. Setting a color storage is pretty straightforward:
Note that the plugin needs to have access to the field element within the panel view to update the color on the fly, therefore it cannot be of
type: hidden
. If you want to hide it visually, you'll have to work your way there with a custom panel css.
• Structure field CSS
If you want to ensure that the structure field will only contain markers, you can hide the Add +
button of the field. This way, there will be no alternative to populate it other than the annotator section.
Add this in a custom panel.css
:
4. Template usage
Markers are stored in a structure field, which means we need to create a collection with the toStructure()
method. I will refer to a variable named $marker
in the examples below, this is how we get it:
4.1. How are the informations stored?
Each marker has a set of coordinates, proportional to the image.
These coordinates are limited to 4 decimals, and return a value between 0
and 1
. Kirby might return them as strings, so remember to always make sure that you're getting a number before working with them :
Each marker also has its type specified as a string, either pin
, rect
or circle
.
• Pin
This is the kind of output to expect:
• Rectangles
This is the kind of output to expect:
• Circles
Please note two things:
-
the
x
andy
coordinates are the ones of the circle's center. This means you'll have to move the marker element with: w
andh
are calculated for the ellipse to be a perfect circle. This means that they will match if the image is squared, but will differ if it is not, in order to compensate for the proportional difference between width and height. Therefore you can set on the element:
This is the kind of output to expect:
4.2. Methods and functions
• Check the marker's type
• Working with percentages
• Formated inline styles
Returns a properly formated inline style, according to the marker's type.
4.3. Basic usage example
In your CSS:
5. License
MIT
6. Credits
- The fields synchronization has been taken from @rasteiner's map section. 🙏