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GDKImageFilterRepository Class Reference

Public class for exposing each of the registered filters through a selectable GUI component (in this case, only an OptionMenu is provided). More...

#include <image_filters.h>

Inheritance diagram for GDKImageFilterRepository:

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Collaboration diagram for GDKImageFilterRepository:

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List of all members.

Public Member Functions

 GDKImageFilterRepository ()
 Constructor for the image filter repository.
 ~GDKImageFilterRepository ()
 Destructor for the image repository - clears all the registered filters.
void Register (GDKImageFilter *filter)
 Register an image filter.
void Initialise (GtkOptionMenu *menu, GtkBin *container)
 Initialise the option menu with the current list of registered filters.
GDKImageFilter * Get () const
 Get the currently selected image filter.
void SelectionChange ()
 Handle attach/detach widgets on last selected/selected items.

Private Attributes

vector< GDKImageFilter * > filters
GDKImageFilter * selected_filter
GtkOptionMenu * menu
GtkBin * container

Detailed Description

Public class for exposing each of the registered filters through a selectable GUI component (in this case, only an OptionMenu is provided).

Filters are currently registered in the repositories constructor and added to the OptionMenu provided via the Initialise function.

Additional filters can be registered before an Initialise call (using the Register method), and Initialise can be called many times if necessary.

Definition at line 120 of file image_filters.h.

Constructor & Destructor Documentation

GDKImageFilterRepository::GDKImageFilterRepository (   ) 
 

Constructor for the image filter repository.

Registers an instance of each known filter for later GUI exposure via the Initialise method.

Definition at line 557 of file image_filters.cc.

References Register().

00558     : selected_filter( 0 )
00559 {
00560     // Register an instance of each object (adapting raw filters to GDK filters where necessary)
00561     Register( new ImageFilterKeep() );
00562     Register( new GDKImageFilterAdapter( new ImageFilterBlackWhite() ) );
00563     Register( new ImageFilterKaleidoscope() );
00564     Register( new GDKImageFilterAdapter( new ImageFilterFadeIn() ) );
00565     Register( new GDKImageFilterAdapter( new ImageFilterFadeOut() ) );
00566     Register( new ImageFilterSwap() );
00567     Register( new ImageFilterMirror() );
00568     Register( new GDKImageFilterAdapter( new ImageFilterReverseVideo() ) );
00569     Register( new GDKImageFilterAdapter( new ImageFilterSepia() ) );
00570 }

GDKImageFilterRepository::~GDKImageFilterRepository (   ) 
 

Destructor for the image repository - clears all the registered filters.

Definition at line 575 of file image_filters.cc.

References filters.

00576 {
00577     // Remove the filters in the repository
00578     for ( unsigned int index = 0; index < filters.size(); index ++ )
00579         delete filters[ index ];
00580 }

Member Function Documentation

GDKImageFilter * GDKImageFilterRepository::Get (   )  const
 

Get the currently selected image filter.

Definition at line 619 of file image_filters.cc.

References filters, and menu.

Referenced by PageMagick::GetImageFilter(), and SelectionChange().

00620 {
00621     GtkMenu * filterMenu = GTK_MENU( gtk_option_menu_get_menu( menu ) );
00622     GtkWidget *active_item = gtk_menu_get_active( filterMenu );
00623     return filters[ g_list_index( GTK_MENU_SHELL( filterMenu ) ->children, active_item ) ];
00624 }

void GDKImageFilterRepository::Initialise (  GtkOptionMenu *  menu,
GtkBin *  container
) 
 

Initialise the option menu with the current list of registered filters.

Definition at line 594 of file image_filters.cc.

References filters, on_optionmenu_selected(), and SelectionChange().

Referenced by PageMagick::PageMagick().

00595 {
00596     // Store these for future reference
00597     this->menu = menu;
00598     this->container = container;
00599 
00600     // Add the filters to the menu
00601     GtkMenu *menu_new = GTK_MENU( gtk_menu_new( ) );
00602     for ( unsigned int index = 0; index < filters.size(); index ++ )
00603     {
00604         GtkWidget *item = gtk_menu_item_new_with_label( filters[ index ] ->GetDescription( ) );
00605         gtk_widget_show( item );
00606         gtk_menu_append( menu_new, item );
00607         g_signal_connect( G_OBJECT( item ), "activate", G_CALLBACK( on_optionmenu_selected ), this );
00608     }
00609     gtk_menu_set_active( menu_new, 0 );
00610     gtk_option_menu_set_menu( menu, GTK_WIDGET( menu_new ) );
00611 
00612     // Register the selected items widgets
00613     SelectionChange();
00614 }

void GDKImageFilterRepository::Register (  GDKImageFilter *  filter  ) 
 

Register an image filter.

Definition at line 585 of file image_filters.cc.

References filters, and ImageFilter::GetDescription().

Referenced by GDKImageFilterRepository(), and PluginImageFilterRepository::InstallPlugins().

00586 {
00587     std::cerr << ">>> Image Filter: " << filter->GetDescription( ) << std::endl;
00588     filters.push_back( filter );
00589 }

void GDKImageFilterRepository::SelectionChange (   ) 
 

Handle attach/detach widgets on last selected/selected items.

Definition at line 629 of file image_filters.cc.

References GDKImageFilter::AttachWidgets(), common, container, GDKImageFilter::DetachWidgets(), Get(), KinoCommon::getPageMagick(), PageMagick::IsPreviewing(), LOCKED_KEY, selected_filter, and PageMagick::StopPreview().

Referenced by Initialise().

00630 {
00631     bool isPreviewing = false;
00632     PageMagick* magick = 0;
00633 
00634     if ( common && common->getPageMagick( ) )
00635         magick = common->getPageMagick( );
00636     if ( magick && magick->IsPreviewing() )
00637     {
00638         isPreviewing = true;
00639         magick->StopPreview();
00640     }
00641 
00642     // Detach the selected filters widgets
00643     if ( selected_filter != NULL )
00644         selected_filter->DetachWidgets( container );
00645 
00646     if ( magick )
00647     {
00648         magick->SetKeyFrameControllerClient(0);
00649         magick->ShowCurrentStatus( magick->GetCurrentPosition(), LOCKED_KEY, false, false );
00650     }
00651 
00652     // Get the new selection
00653     selected_filter = Get();
00654 
00655     // Attach the new filters widgets
00656     if ( selected_filter != NULL )
00657         selected_filter->AttachWidgets( container );
00658 
00659     if ( magick )
00660     {
00661         if ( isPreviewing )
00662             magick->StartPreview();
00663         else
00664             magick->PreviewFrame();
00665     }
00666 }

Member Data Documentation

GtkBin* GDKImageFilterRepository::container [private]
 

Definition at line 126 of file image_filters.h.

Referenced by SelectionChange().

vector<GDKImageFilter *> GDKImageFilterRepository::filters [private]
 

Definition at line 123 of file image_filters.h.

Referenced by Get(), Initialise(), Register(), and ~GDKImageFilterRepository().

GtkOptionMenu* GDKImageFilterRepository::menu [private]
 

Definition at line 125 of file image_filters.h.

Referenced by Get().

GDKImageFilter* GDKImageFilterRepository::selected_filter [private]
 

Definition at line 124 of file image_filters.h.

Referenced by SelectionChange().

The documentation for this class was generated from the following files:
Generated on Sun Mar 11 22:12:59 2007 for Kino by  doxygen 1.4.2