This example demonstrates the basic usage of the image API.

This module demonstrates the use of image styles and effects, including the following topics.

  • Demonstrate how a module can add additional effects to the options available when creating image styles.
  • Demonstrate the usage of hook_image_styles_alter() to modify existing image effects without having to override the styles.
  • Demonstrate the usage of hook_image_style_save() and hook_image_style_delete() to update module specific variables when an image style is either re-named or deleted.
  • Generate a form with a #managed_file field which allows users to upload an image and choose a style to display that image.
  • Demonstrate the usage of theme_image_style() to display images using an image style.

See also

hook_image_effect_info().

hook_image_style_save().

hook_image_style_delete().

theme_image_style().

Parent topics

File

modules/examples/image_example/image_example.module, line 7
Hooks implementations for the Image Example module.

Functions

Namesort descending Location Description
image_example_colorize_effect modules/examples/image_example/image_example.module Image effect callback; Colorize an image resource.
image_example_colorize_form modules/examples/image_example/image_example.module Form Builder; Configuration settings for colorize effect.
image_example_config_info modules/examples/image_example/image_example.module Implements hook_config_info().
image_example_disable modules/examples/image_example/image_example.install Implements hook_disable().
image_example_enable modules/examples/image_example/image_example.install Implements hook_enable().
image_example_image_effect_info modules/examples/image_example/image_example.module Implements hook_image_effect_info().
image_example_image_styles_alter modules/examples/image_example/image_example.module Implements hook_image_styles_alter().
image_example_image_style_delete modules/examples/image_example/image_example.module Implements hook_image_style_delete().
image_example_image_style_save modules/examples/image_example/image_example.module Implements hook_image_style_save().
image_example_install modules/examples/image_example/image_example.install Implements hook_install().
image_example_menu modules/examples/image_example/image_example.module Implements hook_menu().
image_example_style_flush modules/examples/image_example/image_example.module Implements hook_image_style_flush().
image_example_style_form modules/examples/image_example/image_example.pages.inc Form for uploading and displaying an image using selected style.
image_example_style_form_submit modules/examples/image_example/image_example.pages.inc Form Builder; Display a form for uploading an image.
image_example_style_form_validate modules/examples/image_example/image_example.pages.inc Verifies that the user supplied an image with the form..
image_example_theme modules/examples/image_example/image_example.module Implements hook_theme().
theme_image_example_colorize_summary modules/examples/image_example/image_example.module Formats a summary of an image colorize effect.
theme_image_example_image modules/examples/image_example/image_example.pages.inc Theme function displays an image rendered using the specified style.

Classes

Namesort descending Location Description
ImageExampleTestCase modules/examples/image_example/tests/image_example.test Functional tests for the Image Example module.