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#ifndef ROFI_WIDGET_H
#define ROFI_WIDGET_H
#include <glib.h>
#include <cairo.h>
#include <xcb/xcb.h>
#include <xcb/xproto.h>
/**
* @defgroup widgets widgets
*
* Generic abstract widget class. Widgets should 'inherit' from this class (first structure in there structure should be
* widget).
* The generic widget implements generic functions like get_width, get_height, draw, resize, update, free and
* clicked.
* It also holds information about how the widget should be packed.
*
* @{
*/
typedef struct _widget widget;
typedef gboolean ( *widget_clicked_cb )( widget *, xcb_button_press_event_t *, void * );
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;
/** Information about packing. */
gboolean expand;
gboolean end;
struct _widget *parent;
/** Internal */
gboolean need_redraw;
/** Function prototypes */
int ( *get_width )( struct _widget * );
int ( *get_height )( struct _widget * );
void ( *draw )( struct _widget *widget, cairo_t *draw );
void ( *resize )( struct _widget *, short, short );
void ( *update )( struct _widget * );
// Signals.
widget_clicked_cb clicked;
void *clicked_cb_data;
// Free
void ( *free )( struct _widget *widget );
};
/** Macro to get widget from an implementation (e.g. textbox/scrollbar) */
#define WIDGET( a ) ( ( a ) != NULL ? (widget *) ( a ) : NULL )
/**
* @param widget The widget to check
* @param x The X position relative to parent window
* @param y the Y position relative to parent window
*
* Check if x,y falls within the widget.
*
* @return TRUE if x,y falls within the widget
*/
int widget_intersect ( const widget *widget, int x, int y );
/**
* @param widget The widget to move
* @param x The new X position relative to parent window
* @param y The new Y position relative to parent window
*
* Moves the widget.
*/
void widget_move ( widget *widget, short x, short y );
gboolean widget_enabled ( widget *widget );
void widget_disable ( widget *widget );
void widget_enable ( widget *widget );
/**
* @param tb Handle to the widget
* @param draw The cairo object used to draw itself.
*
* Render the textbox.
*/
void widget_draw ( widget *widget, cairo_t *d );
/**
* @param tb Handle to the widget
*
* Free the widget and all allocated memory.
*/
void widget_free ( widget *widget );
/**
* @param widget The widget toresize
* @param w The new width
* @param h The new height
*
* Resizes the widget.
*/
void widget_resize ( widget *widget, short w, short h );
int widget_get_height ( widget *widget );
int widget_get_width ( widget *widget );
void widget_update ( widget *widget );
void widget_queue_redraw ( widget *widget );
gboolean widget_need_redraw ( widget *wid );
gboolean widget_clicked ( widget *wid, xcb_button_press_event_t *xbe );
// Signal!
void widget_set_clicked_handler ( widget *wid, widget_clicked_cb cb, void *udata );
/*@}*/
#endif // ROFI_WIDGET_H
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