rofi/include/widgets/widget-internal.h

#ifndef WIDGET_INTERNAL_H
#define WIDGET_INTERNAL_H

/**
 * Data structure holding the internal state of the Widget
 */
struct _widget
{
    /** X position relative to parent */
    short             x;
    /** Y position relative to parent */
    short             y;
    /** Width of the widget */
    short             w;
    /** Height of the widget */
    short             h;
    /** enabled or not */
    gboolean          enabled;
    /** Expand the widget when packed */
    gboolean          expand;
    /** Place widget at end of parent */
    gboolean          end;
    /** Parent widget */
    struct _widget    *parent;
    /** Internal */
    gboolean          need_redraw;
    /** get width of widget implementation function */
    int               ( *get_width )( struct _widget * );
    /** get height of widget implementation function */
    int               ( *get_height )( struct _widget * );
    /** draw widget implementation function */
    void              ( *draw )( struct _widget *widget, cairo_t *draw );
    /** resize widget implementation function */
    void              ( *resize )( struct _widget *, short, short );
    /** update widget implementation function */
    void              ( *update )( struct _widget * );

    /** Handle mouse motion, used for dragging */
    gboolean          ( *motion_notify )( struct _widget *, xcb_motion_notify_event_t * );

    /** widget clicked callback */
    widget_clicked_cb clicked;
    /** user data for clicked callback */
    void              *clicked_cb_data;

    /** Free widget callback */
    void              ( *free )( struct _widget *widget );
};
#endif // WIDGET_INTERNAL_H