mirror of
https://github.com/lbonn/rofi
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150 lines
3.6 KiB
C
150 lines
3.6 KiB
C
#ifndef ROFI_WIDGET_H
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#define ROFI_WIDGET_H
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#include <glib.h>
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#include <cairo.h>
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#include <xcb/xcb.h>
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#include <xcb/xproto.h>
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/**
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* @defgroup widget widget
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*
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* Generic abstract widget class. Widgets should 'inherit' from this class (first structure in there structure should be
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* widget).
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* The generic widget implements generic functions like get_width, get_height, draw, resize, update, free and
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* clicked.
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* It also holds information about how the widget should be packed.
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*
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* @{
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*/
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typedef struct _widget widget;
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/**
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* Callback for when widget is clicked.
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*/
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typedef gboolean ( *widget_clicked_cb )( widget *, xcb_button_press_event_t *, void * );
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/** Macro to get widget from an implementation (e.g. textbox/scrollbar) */
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#define WIDGET( a ) ( ( a ) != NULL ? (widget *) ( a ) : NULL )
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/**
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* @param widget The widget to check
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* @param x The X position relative to parent window
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* @param y the Y position relative to parent window
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*
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* Check if x,y falls within the widget.
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*
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* @return TRUE if x,y falls within the widget
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*/
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int widget_intersect ( const widget *widget, int x, int y );
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/**
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* @param widget The widget to move
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* @param x The new X position relative to parent window
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* @param y The new Y position relative to parent window
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*
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* Moves the widget.
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*/
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void widget_move ( widget *widget, short x, short y );
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/**
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* @param widget Handle to widget
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*
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* Check if widget is enabled.
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* @returns TRUE when widget is enabled.
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*/
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gboolean widget_enabled ( widget *widget );
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/**
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* @param widget Handle to widget
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*
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* Disable the widget.
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*/
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void widget_disable ( widget *widget );
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/**
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* @param widget Handle to widget
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*
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* Enable the widget.
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*/
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void widget_enable ( widget *widget );
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/**
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* @param tb Handle to the widget
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* @param draw The cairo object used to draw itself.
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*
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* Render the textbox.
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*/
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void widget_draw ( widget *widget, cairo_t *d );
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/**
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* @param tb Handle to the widget
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*
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* Free the widget and all allocated memory.
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*/
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void widget_free ( widget *widget );
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/**
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* @param widget The widget toresize
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* @param w The new width
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* @param h The new height
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*
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* Resizes the widget.
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*/
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void widget_resize ( widget *widget, short w, short h );
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/**
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* @param widget The widget handle
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*
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* @returns the height of the widget.
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*/
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int widget_get_height ( widget *widget );
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/**
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* @param widget The widget handle
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*
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* @returns the width of the widget.
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*/
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int widget_get_width ( widget *widget );
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/**
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* @param widget The widget handle
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*
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* Update the widget, and its parent recursively.
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* This should be called when size of widget changes.
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*/
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void widget_update ( widget *widget );
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/**
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* @param widget The widget handle
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*
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* Indicate that the widget needs to be redrawn.
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* This is done by setting the redraw flag on the toplevel widget.
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*/
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void widget_queue_redraw ( widget *widget );
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/**
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* @param widget The widget handle
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*
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* Check the flag indicating the widget needs to be redrawn.
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*/
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gboolean widget_need_redraw ( widget *wid );
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/**
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* @param wid The widget handle
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* @param xbe The button press event
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*
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* Signal the widget that it has been clicked,
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* The click should have happened within the region of the widget, check with
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* ::widget_intersect.
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*
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* @returns returns TRUE if click is handled.
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*/
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gboolean widget_clicked ( widget *wid, xcb_button_press_event_t *xbe );
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/**
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* @param wid The widget handle
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* @param cb The widget click callback
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* @param udata the user data to pass to callback
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*
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* Override the widget clicked handler on widget.
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*/
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void widget_set_clicked_handler ( widget *wid, widget_clicked_cb cb, void *udata );
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/*@}*/
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#endif // ROFI_WIDGET_H
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