ScrollableT

#GtkScrollable is an interface that is implemented by widgets with native scrolling ability.

To implement this interface you should override the #GtkScrollable:hadjustment and #GtkScrollable:vadjustment properties.

Creating a scrollable widget

All scrollable widgets should do the following.

- When a parent widget sets the scrollable child widget’s adjustments, the widget should populate the adjustments’ #GtkAdjustment:lower, #GtkAdjustment:upper, #GtkAdjustment:step-increment, #GtkAdjustment:page-increment and #GtkAdjustment:page-size properties and connect to the #GtkAdjustment::value-changed signal.

- Because its preferred size is the size for a fully expanded widget, the scrollable widget must be able to cope with underallocations. This means that it must accept any value passed to its #GtkWidgetClass.size_allocate() function.

- When the parent allocates space to the scrollable child widget, the widget should update the adjustments’ properties with new values.

- When any of the adjustments emits the #GtkAdjustment::value-changed signal, the scrollable widget should scroll its contents.

template ScrollableT (

TStruct

) {

GtkScrollable* getScrollableStruct();

bool getBorder(Border border);

Adjustment getHadjustment();

GtkScrollablePolicy getHscrollPolicy();

Adjustment getVadjustment();

GtkScrollablePolicy getVscrollPolicy();

void setHadjustment(Adjustment hadjustment);

void setHscrollPolicy(GtkScrollablePolicy policy);

void setVadjustment(Adjustment vadjustment);

void setVscrollPolicy(GtkScrollablePolicy policy);

}

Members

Functions

getBorder bool getBorder(Border border): Returns the size of a non-scrolling border around the outside of the scrollable. An example for this would be treeview headers. GTK+ can use this information to display overlayed graphics, like the overshoot indication, at the right position.
getHadjustment Adjustment getHadjustment(): Retrieves the #GtkAdjustment used for horizontal scrolling.
getHscrollPolicy GtkScrollablePolicy getHscrollPolicy(): Gets the horizontal #GtkScrollablePolicy.
getScrollableStruct GtkScrollable* getScrollableStruct(): Get the main Gtk struct
getVadjustment Adjustment getVadjustment(): Retrieves the #GtkAdjustment used for vertical scrolling.
getVscrollPolicy GtkScrollablePolicy getVscrollPolicy(): Gets the vertical #GtkScrollablePolicy.
setHadjustment void setHadjustment(Adjustment hadjustment): Sets the horizontal adjustment of the #GtkScrollable.
setHscrollPolicy void setHscrollPolicy(GtkScrollablePolicy policy): Sets the #GtkScrollablePolicy to determine whether horizontal scrolling should start below the minimum width or below the natural width.
setVadjustment void setVadjustment(Adjustment vadjustment): Sets the vertical adjustment of the #GtkScrollable.
setVscrollPolicy void setVscrollPolicy(GtkScrollablePolicy policy): Sets the #GtkScrollablePolicy to determine whether vertical scrolling should start below the minimum height or below the natural height.

ScrollableT

Creating a scrollable widget

Members

Functions

Meta

Source