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GUI textarea

anonymous profile picture
Deleted user
Posts: 112

25 December 2013, 3:16 PM

I am trying to modify a plugin, the image plugin.  I wanted to add an item to the GUI box, a mutliline text box.  How do I go about doing this?

I founnd the corresponding code in lib.php file, and I was able to get as far as creating a text box that is 150 characters long.  When I try to set it as textarea with a width of 255, only one line is displayed with a width of 10 characters.  I am not sure what I am doing wrong.



Tobias Zeuch's profile picture
Posts: 99

03 January 2014, 3:46 AM

Hi Melissa,

I guess you are trying to add something like a description-text to the displayed image? Here's how you could do that: 

in lib.php, in the function instance_config_form, add an element like this:

'description' => array(
    'type' => 'textarea',
    'title' => 'Description', // better use get_string() for internationalisation
    'cols' => '150',
    'rows' => '5',
    'description' => 'Enter a description for the image', // better use get_string() 
    'defaultvalue' => (isset($configdata['description'])) ? $configdata['description'] : '',

That get's you the edit-box when you click the configure-icon. 

To display the content, edit the render_instance function in the same file and access the saved value in configdata, like in the second-last line of the example above. Assign the text to a new variable in the smarty_core object and edit the image.tpl file accordingly.


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