FMX.Mobile.PhotoEditorDemo Sample (C++)

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This sample illustrates how to apply effects to photos taken from the mobile device or from the built-in camera, and how to save the customized photo to the library using FireMonkey.

Location

You can find the FireMonkeyMobile PhotoEditorDemo sample project at:

Description

The top toolbar of the application has a set of buttons with different effects and a button to take a photo from the local library. The set of effects depends on the device on which the application runs.

The lower toolbar contains three buttons:

  • A button that opens the share sheet and offers the possibility to share or save the managed photo.
  • A button for taking photos.
  • A button that clears the image container.

This application demonstrates the use of media actions (TShowShareSheetAction, TTakePhotoFromCameraAction and TTakePhotoFromLibraryAction), TAction and TFilterManager.

How to Use the Sample

  1. Navigate to the location given above and open PhotoEditorDemo.cbproj.
  2. Press F9 or choose Run > Run. This is the application layout on an iPhone and an iPad:

    PhotoEditorDemoIPhone.png PhotoEditorDemoIPad.PNG
    • Load or take a photo.
    • Edit the photo by applying an effect through the buttons on the top toolbar.
    • Save or share the edited image through the Share button on the lower toolbar.

Files

File Contains

MainFrm

Contains the base form.

MainFrm_Pad

Contains the form used when the application runs on an iPad.

MainFrm_Phone

Contains the form used when the application runs on an iPhone.

Images

Contains the arrow images used as help when the application runs on iPad.

Classes

  1. TBaseMainForm is the base form of the application. This class contains the following:
  2. The TPadMainForm class is derived from TBaseMainForm. It is the main form for the application when running on an iPad device. TPadMainForm extends the TBaseMainForm class with the following components:
    • Two TImage objects to display the help arrows.
    • Two TText objects to display the help text.
    • Five TSpeedButton objects for four new effects.
    • Five TAction objects, one for each new button effect (ActionSwirlEffect, ActionWaveEffect, ActionEmbossEffect, ActionContrastEffect, ActionPaperSketchEffect).
  3. The TPhoneMainForm class is derived from TBaseMainForm. It is the main form for the application when running on an iPhone device. TPhoneMainForm extends the TBaseMainForm class with the following component:
    • A TText to display the help text.

Implementation

This application uses TAction and TFilterManager to load and customize images. The SetEffect method of the TBaseMainForm class uses TFilterManager to access FireMonkey image effects by name, through the FilterByName method, and then sets the various effects attributes. Each action assigned to an effect button calls the SetEffect method.

All the buttons on the application forms have attached actions.

The form to be open at run time is set in the PhotoEditorDemo.dpr file. To see the PhotoEditorDemo.dpr, right-click the project in the Project Manager, and choose View source.

Uses

See Also