WidgetScroll Class

WidgetScroll Class

Members

---

WidgetScroll (const Ptr<Gui> & gui, int object = 100, int frame = 10, int step = 1, int value = 0)

Constructor. Creates a scroller with the given parameters.

Arguments

• const Ptr<Gui> & gui - GUI, to which the scroll bar will belong.
• int object - Width of the object to scroll in pixels. This is an optional argument.
• int frame - Width of the visible area in pixels. This is an optional argument.
• int step - Step of the scroller in pixels. This is an optional argument.
• int value - Initial position of the scroller. This is an optional argument.

int getObjectSize ()

Returns the size of the whole area that is scrolled through.

Return value

Size of the object being scrolled in pixels.

int type ()

WidgetScroll type.

Return value

WidgetScroll type identifier.

int getStepSize ()

Returns the step of the scroller. This step is used to increment the scroll position.

Return value

Step of the scroller in pixels.

void setFrameSize (int size)

Sets the size of the currently visible area.

Arguments

• int size - Size of the visible area in pixels. The minimum is 1 pixel.

int getFrameSize ()

Returns the size of the currently visible area.

Return value

Size of the visible area in pixels.

Ptr<WidgetScroll> create (const Ptr<Widget> & widget)

WidgetScroll constructor.

Arguments

• const Ptr<Widget> & widget - Widget smart pointer.

Return value

void setValue (int value)

Sets a value of the scroller, i.e. its position.

Arguments

• int value - Position of the scroller. The minimum value is 0, the maximum value is the difference between the object width and the frame width.

void setStepSize (int size)

Sets the step of the scroller. This step is used to increment the scroll position.

Arguments

• int size - Step of the scroller in pixels. The minimum is 1 pixel.

int getValue ()

Returns the value of the scroller, i.e. its position.

Return value

Position of the scroller.

void setOrientation (int orientation)

Sets orientation of the scroller: horizontal (by default) or vertical one.

Arguments

• int orientation - 1 to set horizontal orientation; 0 to set vertical one.

int getOrientation ()

Returns the current orientation of the scroller: horizontal or vertical one.

Return value

1 if the orientation is vertical; 0 if it is horizontal.

void setObjectSize (int size)

Sets the size of the whole area to be scrolled through.

Arguments

• int size - Size of the object being scrolled in pixels. The minimum is 1 pixel.