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92 lines
2 KiB
C
92 lines
2 KiB
C
#ifndef ROFI_SCROLLBAR_H
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#define ROFI_SCROLLBAR_H
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#include <cairo.h>
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#include "widget.h"
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/**
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* @defgroup Scrollbar Scrollbar
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* @ingroup Widgets
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*
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* @{
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*/
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/**
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* Internal structure for the scrollbar.
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*/
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typedef struct _scrollbar
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{
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Widget widget;
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unsigned int length;
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unsigned int pos;
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unsigned int pos_length;
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} scrollbar;
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/**
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* @param x The x coordinate (relative to parent) to position the new scrollbar
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* @param y The y coordinate (relative to parent) to position the new scrollbar
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* @param w The width of the scrollbar
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* @param h The height of the scrollbar
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*
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* Create a new scrollbar
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*
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* @returns the scrollbar object.
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*/
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scrollbar *scrollbar_create ( short x, short y, short w, short h );
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/**
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* @param sb scrollbar object
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*
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* Free the resources used by the scrollbar.
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*/
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void scrollbar_free ( scrollbar *sb );
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/**
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* @param sb scrollbar object
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* @param pos_length new length
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*
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* set the length of the handle relative to the max value of bar.
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*/
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void scrollbar_set_handle_length ( scrollbar *sb, unsigned int pos_length );
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/**
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* @param sb scrollbar object
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* @param pos new position
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*
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* set the position of the handle relative to the set max value of bar.
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*/
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void scrollbar_set_handle ( scrollbar *sb, unsigned int pos );
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/**
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* @param sb scrollbar object
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* @param max the new max
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*
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* set the max value of the bar.
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*/
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void scrollbar_set_max_value ( scrollbar *sb, unsigned int max );
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/**
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* @param sb scrollbar object
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* @param draw the cairo object used to draw itself
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*
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* Draw the scrollbar, used after expose event or update
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*/
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void scrollbar_draw ( scrollbar *sb, cairo_t *draw );
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/**
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* @param sb scrollbar object
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* @param y clicked position
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*
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* Calculate the position of the click relative to the max value of bar
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*/
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unsigned int scrollbar_clicked ( scrollbar *sb, int y );
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/**
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* @param sb scrollbar object
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* @param w new width in pixels
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* @param h new height in pixels
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*
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* Resize the scrollbar.
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*/
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void scrollbar_resize ( scrollbar *sb, int w, int h );
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/*@}*/
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#endif // ROFI_SCROLLBAR_H
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