Scroom::GtkHelpers Namespace Reference

Namespaces
namespace	Detail

Functions
template<typename T >
std::pair< GSourceFunc, gpointer >	wrap (T f)
bool	on_ui_thread ()
template<typename T >
void	async_on_ui_thread (T f)
template<typename T >
void	async_on_ui_thread_and_wait (T f)
template<typename T >
void	sync_on_ui_thread (T f)
cairo_rectangle_int_t	createCairoIntRectangle (int x, int y, int width, int height)
GtkWindow *	get_parent_window (GtkWidget *widget)

Function Documentation

async_on_ui_thread()

template<typename T >

void Scroom::GtkHelpers::async_on_ui_thread

(

T

f

)

  {
    const auto [function, data] = wrap(std::move(f));
    gdk_threads_add_idle(function, data);
  }

Referenced by async_on_ui_thread_and_wait(), TiledBitmapViewData::tileLoaded(), and Scroom::GtkTestHelpers::GtkMainLoop::~GtkMainLoop().

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async_on_ui_thread_and_wait()

template<typename T >

void Scroom::GtkHelpers::async_on_ui_thread_and_wait

(

T

f

)

  {
    require(!on_ui_thread());
    std::packaged_task<void(void)> t(std::move(f));
    std::future<void> const future = t.get_future();
    async_on_ui_thread(std::move(t));
    future.wait();
  }

Referenced by sync_on_ui_thread().

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createCairoIntRectangle()

cairo_rectangle_int_t Scroom::GtkHelpers::createCairoIntRectangle ( int  x, int  y, int  width, int  height  )

inline

  {
    cairo_rectangle_int_t rect;
    rect.x = x;
    rect.y = y;
    rect.width = width;
    rect.height = height;
    return rect;
  }

Referenced by createCairoIntRectangle(), and Scroom::Utils::Rectangle< T >::toGdkRectangle().

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get_parent_window()

GtkWindow * Scroom::GtkHelpers::get_parent_window

(

GtkWidget *

widget

)

  {
    auto* topLevel = gtk_widget_get_toplevel(widget);
    if(GTK_IS_WINDOW(topLevel))
    {
      return GTK_WINDOW(topLevel);
    }
 
    return nullptr;
  }

Referenced by on_image_properties_activate().

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on_ui_thread()

bool Scroom::GtkHelpers::on_ui_thread

(

)

{ return g_main_context_is_owner(g_main_context_default()); }

Referenced by async_on_ui_thread_and_wait(), sync_on_ui_thread(), and sync_on_ui_thread().

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sync_on_ui_thread()

template<typename T >

void Scroom::GtkHelpers::sync_on_ui_thread

(

T

f

)

  {
    if(on_ui_thread())
    {
      f();
    }
    else
    {
      async_on_ui_thread_and_wait(std::move(f));
    }
  }

Referenced by View::addToolButton(), PipetteHandler::computeValues(), PipetteHandler::displayValues(), invalidate_view(), Scroom::TiledBitmap::scheduleLoadingBitmap(), ProgressBarManager::setWorking(), TiledBitmap::tileFinished(), and Metadata::viewAdded().

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wrap()

template<typename T >

std::pair< GSourceFunc, gpointer > Scroom::GtkHelpers::wrap

(

T

f

)

  {
    return std::make_pair<GSourceFunc, gpointer>(Detail::gtkWrapper<T>, new T(std::move(f)));
  }

Referenced by async_on_ui_thread().

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