xplayhead_private.h File Reference

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Functions
void	_create_playhead_image (Widget_t *w, int width, int height)
	_create_playhead_image - internal draw the playhead image to the cairo image surface
void	_draw_playhead (void *w_, void *user_data)
	_draw_playhead - internal draw the playhead to the buffer

Function Documentation

_create_playhead_image()

void _create_playhead_image	(	Widget_t *	w,
		int	width,
		int	height
	)

_create_playhead_image - internal draw the playhead image to the cairo image surface

Parameters

*w	- pointer to the Widget_t meter
width	- widget width
height	- widget height

Definition at line 25 of file xplayhead_private.c.

                                                                {
    w->image = cairo_surface_create_similar (w->surface, 
                        CAIRO_CONTENT_COLOR_ALPHA, width, height*2);
    cairo_t *cri = cairo_create (w->image);
    Colors *c = get_color_scheme(w, NORMAL_);
 
    //cairo_rectangle(cri,0.0, 0.0, width, height*2);
    //cairo_set_source_rgba (cri, c->bg[0],  c->bg[1], c->bg[2],  c->bg[3]); 
    //cairo_fill(cri);
 
    cairo_set_source_rgba (cri, c->shadow[0],  c->shadow[1], c->shadow[2],  c->shadow[3]); 
 
    int h = height ;
    int ci = h-2;
 
    int i = 1;
    for(;i<width;) {
        cairo_rectangle(cri,i,1,2,ci);
        cairo_fill(cri);
        i +=3;
    }
 
    cairo_set_source_rgba (cri, c->text[0],  c->text[1], c->text[2],  c->text[3]); 
 
    i = 1;
    for(;i<width;) {
        cairo_rectangle(cri,i,height+1,2,ci);
        cairo_fill(cri);
        i +=3;
    }
 
    cairo_destroy(cri);
}

References get_color_scheme(), Widget_t::image, NORMAL_, Colors::shadow, Widget_t::surface, and Colors::text.

Referenced by add_playhead().

_draw_playhead()

void _draw_playhead	(	void *	w_,
		void *	user_data
	)

_draw_playhead - internal draw the playhead to the buffer

Parameters

*w_	- void pointer to the Widget_t button
*user_data	- void pointer to attached user_data

Definition at line 59 of file xplayhead_private.c.

                                               {
    Widget_t *w = (Widget_t*)w_;
 
    int width, height;
    os_get_surface_size(w->image, &width, &height);
    double state = adj_get_state(w->adj);
    double clip = adj_get_state(w->adj_x);
    double cut = adj_get_state(w->adj_y);
    widget_set_scale(w);
    cairo_set_source_surface (w->crb, w->image, 0, 0);
    cairo_rectangle(w->crb,0, 0, width, height/2);
    cairo_fill(w->crb);
    cairo_set_source_surface (w->crb, w->image, 0, -height/2);
    cairo_rectangle(w->crb, width*state,0,3, height/2);
    cairo_fill(w->crb);
 
    cairo_set_source_rgba (w->crb, 0.5, 0.0, 0.0, 0.4);
    cairo_rectangle(w->crb, 0,0,width*clip, height/2);
    cairo_fill(w->crb);
 
    cairo_rectangle(w->crb, width,0,(width*cut)-width, height/2);
    cairo_fill(w->crb);
 
    widget_reset_scale(w);
}

References Widget_t::adj, adj_get_state(), Widget_t::adj_x, Widget_t::adj_y, Widget_t::crb, Widget_t::image, os_get_surface_size(), widget_reset_scale(), and widget_set_scale().

Referenced by add_playhead().