xdrawing_area_private.h File Reference

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Functions
void	_draw_image (void *w_, void *user_data)
	_draw_image - internal draw the image to the buffer

Function Documentation

_draw_image()

void _draw_image	(	void *	w_,
		void *	user_data
	)

_draw_image - internal draw the image to the buffer

Parameters

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

Definition at line 39 of file xdrawing_area_private.c.

                                            {
    Widget_t *w = (Widget_t*)w_;
    Metrics_t metrics;
    os_get_window_metrics(w, &metrics);
    int width_t = metrics.width;
    int height_t = metrics.height;
 
    if (!w->image) {
        cairo_text_extents_t extents;
        use_base_color_scheme(w, get_color_state(w));
        cairo_set_font_size (w->crb, w->app->big_font/w->scale.ascale);
        cairo_text_extents(w->crb,"Missing Image" , &extents);
        cairo_move_to (w->crb, (w->width -extents.width)*0.5, (w->height - extents.height)*0.5);
        cairo_show_text(w->crb, "Missing Image");
        cairo_new_path (w->crb);
 
        cairo_set_line_width(w->crb,3);
        _rounded_iframe(w->crb, 5, 5, width_t-10, height_t-10);
        cairo_stroke(w->crb);
    }
 
    if (w->image) {
        int width, height;
        os_get_surface_size(w->image, &width, &height);
        double x = (double)width_t/(double)(width);
        double y = (double)height_t/(double)height;
        double x1 = (double)(width)/(double)width_t;
        double y1 = (double)height/(double)height_t;
        cairo_scale(w->crb, x,y);
        cairo_set_source_surface (w->crb, w->image, 0, 0);
        cairo_paint (w->crb);
        cairo_scale(w->crb, x1,y1);
    } 
}

References _rounded_iframe(), Widget_t::app, Resize_t::ascale, Xputty::big_font, Widget_t::crb, get_color_state(), Metrics_t::height, Widget_t::height, Widget_t::image, os_get_surface_size(), os_get_window_metrics(), Widget_t::scale, use_base_color_scheme(), Metrics_t::width, and Widget_t::width.

Referenced by add_image().