xslider_private.c File Reference

#include "xslider_private.h"

Include dependency graph for xslider_private.c:

Go to the source code of this file.

Functions
void	_pattern_vslider (Widget_t *w, Color_state st, int width)
	_pattern_vslider - set pattern for the slider base More...
void	_pattern_hslider (Widget_t *w, Color_state st, int height)
	_pattern_hslider - set pattern for the slider base More...
void	_draw_vslider (void *w_, void *user_data)
	_draw_vslider - internal draw the slider to the buffer More...
void	_draw_hslider (void *w_, void *user_data)
	_draw_hslider - internal draw the slider to the buffer More...
void	_slider_released (void *w_, void *button_, void *user_data)
	_slider_released - redraw the slider when button released More...

Function Documentation

_draw_hslider()

void _draw_hslider	(	void *	w_,
		void *	user_data
	)

_draw_hslider - internal draw the slider to the buffer

Parameters

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

Returns

void

Definition at line 117 of file xslider_private.c.

                                              {
    Widget_t *w = (Widget_t*)w_;
    XWindowAttributes attrs;
    XGetWindowAttributes(w->app->dpy, (Window)w->widget, &attrs);
    int width = attrs.width-2;
    int height = attrs.height-2;
    float center = (float)height/2;
    float upcenter = (float)height;
    
    if (attrs.map_state != IsViewable) return;
 
    float sliderstate = adj_get_state(w->adj_x);
 
    _pattern_hslider(w, get_color_state(w), height);
    cairo_move_to (w->crb, center, center);
    cairo_line_to(w->crb,width-center-10,center);
    cairo_set_line_cap (w->crb,CAIRO_LINE_CAP_ROUND);
    cairo_set_line_width(w->crb,center);
    cairo_stroke(w->crb);
 
    use_shadow_color_scheme(w, get_color_state(w));
    cairo_move_to (w->crb, center, center);
    cairo_line_to(w->crb,width-center-10,center);
    cairo_set_line_width(w->crb,center/10);
    cairo_stroke(w->crb);
 
    use_shadow_color_scheme(w, get_color_state(w));
    cairo_arc(w->crb, (center) +
        ((width-10-upcenter) * sliderstate),center, center/2, 0, 2 * M_PI );
    cairo_fill_preserve(w->crb);
    cairo_set_line_width(w->crb,1);
    cairo_stroke(w->crb);
 
    use_bg_color_scheme(w, get_color_state(w));
    cairo_arc(w->crb, (center) +
        ((width-10-upcenter) * sliderstate),center, center/3, 0, 2 * M_PI );
    cairo_fill_preserve(w->crb);
    use_fg_color_scheme(w, NORMAL_);
    cairo_set_line_width(w->crb,center/15);
    cairo_stroke(w->crb);
    cairo_new_path (w->crb);
 
    cairo_text_extents_t extents;
 
 
    use_text_color_scheme(w, get_color_state(w));
    cairo_set_font_size (w->crb, w->app->normal_font/w->scale.ascale);
    cairo_text_extents(w->crb,w->label , &extents);
 
    cairo_move_to (w->crb, width/2-extents.width/2, height );
    cairo_show_text(w->crb, w->label);
    cairo_new_path (w->crb);
 
    cairo_set_font_size (w->crb, w->app->small_font/w->scale.ascale);
    char s[64];
    const char* format[] = {"%.1f", "%.2f", "%.3f"};
    float value = adj_get_value(w->adj);
        if (fabs(w->adj->step)>0.99) {
            snprintf(s, 63,"%d",  (int) value);
        } else if (fabs(w->adj->step)>0.09) {
            snprintf(s, 63, format[1-1], value);
        } else {
            snprintf(s, 63, format[2-1], value);
        }
    cairo_text_extents(w->crb,s , &extents);
    cairo_move_to (w->crb, width/2-extents.width/2, extents.height );
    cairo_show_text(w->crb, s);
    cairo_new_path (w->crb);
}

References _pattern_hslider(), Widget_t::adj, adj_get_state(), adj_get_value(), Widget_t::adj_x, Widget_t::app, Resize_t::ascale, Widget_t::crb, Xputty::dpy, get_color_state(), Widget_t::label, NORMAL_, Xputty::normal_font, Widget_t::scale, Xputty::small_font, Adjustment_t::step, use_bg_color_scheme(), use_fg_color_scheme(), use_shadow_color_scheme(), use_text_color_scheme(), and Widget_t::widget.

_draw_vslider()

void _draw_vslider	(	void *	w_,
		void *	user_data
	)

_draw_vslider - internal draw the slider to the buffer

Parameters

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

Returns

void

Definition at line 47 of file xslider_private.c.

                                              {
    Widget_t *w = (Widget_t*)w_;
    XWindowAttributes attrs;
    XGetWindowAttributes(w->app->dpy, (Window)w->widget, &attrs);
    int width = attrs.width-2;
    int height = attrs.height-2;
    float center = (float)width/2;
    float upcenter = (float)width;
    
    if (attrs.map_state != IsViewable) return;
 
    float sliderstate = adj_get_state(w->adj_y);
 
    _pattern_vslider(w, get_color_state(w), width);
    cairo_move_to (w->crb, center, center);
    cairo_line_to(w->crb,center,height-center-10);
    cairo_set_line_cap (w->crb,CAIRO_LINE_CAP_ROUND);
    cairo_set_line_width(w->crb,center);
    cairo_stroke(w->crb);
 
    use_shadow_color_scheme(w, get_color_state(w));
    cairo_move_to (w->crb, center, center);
    cairo_line_to(w->crb,center,height-center-10);
    cairo_set_line_width(w->crb,center/10);
    cairo_stroke(w->crb);
 
    use_shadow_color_scheme(w, get_color_state(w));
    cairo_arc(w->crb,center, (height-center-10) -
        ((height-10-upcenter) * sliderstate), center/2, 0, 2 * M_PI );
    cairo_fill_preserve(w->crb);
    cairo_set_line_width(w->crb,1);
    cairo_stroke(w->crb);
 
 
    use_bg_color_scheme(w, get_color_state(w));
    cairo_arc(w->crb,center, (height-center-10) -
        ((height-10-upcenter) * sliderstate), center/3, 0, 2 * M_PI );
    cairo_fill_preserve(w->crb);
    use_fg_color_scheme(w, NORMAL_);
    cairo_set_line_width(w->crb,center/15);
    cairo_stroke(w->crb);
    cairo_new_path (w->crb);
 
    cairo_text_extents_t extents;
 
 
    use_text_color_scheme(w, get_color_state(w));
    cairo_set_font_size (w->crb, center/1.8);
    cairo_text_extents(w->crb,w->label , &extents);
 
    cairo_move_to (w->crb, center-extents.width/2, height-center/2.1);
    cairo_show_text(w->crb, w->label);
    cairo_new_path (w->crb);
 
    char s[64];
    const char* format[] = {"%.1f", "%.2f", "%.3f"};
    float value = adj_get_value(w->adj);
    if (fabs(w->adj->step)>0.99) {
        snprintf(s, 63,"%d",  (int) value);
    } else if (fabs(w->adj->step)>0.09) {
        snprintf(s, 63, format[1-1], value);
    } else {
        snprintf(s, 63, format[2-1], value);
    }
    cairo_text_extents(w->crb,s , &extents);
    cairo_move_to (w->crb, center-extents.width/2, extents.height );
    cairo_show_text(w->crb, s);
    cairo_new_path (w->crb);
}

References _pattern_vslider(), Widget_t::adj, adj_get_state(), adj_get_value(), Widget_t::adj_y, Widget_t::app, Widget_t::crb, Xputty::dpy, get_color_state(), Widget_t::label, NORMAL_, Adjustment_t::step, use_bg_color_scheme(), use_fg_color_scheme(), use_shadow_color_scheme(), use_text_color_scheme(), and Widget_t::widget.

_pattern_hslider()

void _pattern_hslider	(	Widget_t *	w,
		Color_state	st,
		int	width
	)

_pattern_hslider - set pattern for the slider base

Parameters

*w_	- void pointer to the Widget_t button
st	- the Widget_t Color_t mode to use
width	- the width of the base

Returns

void

Definition at line 36 of file xslider_private.c.

                                                               {
    Colors *c = get_color_scheme(w->app,st);
    if (!c) return;
    cairo_pattern_t *pat = cairo_pattern_create_linear (2, 2, 2, height);
    cairo_pattern_add_color_stop_rgba(pat, 0.0, c->base[0],  c->base[1], c->base[2],  c->base[3]);
    cairo_pattern_add_color_stop_rgba(pat, 0.5, 0.0, 0.0, 0.0, 0.0);
    cairo_pattern_add_color_stop_rgba(pat, 1.0, c->base[0],  c->base[1], c->base[2],  c->base[3]);
    cairo_set_source(w->crb, pat);
    cairo_pattern_destroy (pat);
}

References Widget_t::app, Colors::base, Widget_t::crb, and get_color_scheme().

_pattern_vslider()

void _pattern_vslider	(	Widget_t *	w,
		Color_state	st,
		int	width
	)

_pattern_vslider - set pattern for the slider base

Parameters

*w_	- void pointer to the Widget_t button
st	- the Widget_t Color_t mode to use
width	- the width of the base

Returns

void

Definition at line 25 of file xslider_private.c.

                                                              {
    Colors *c = get_color_scheme(w->app,st);
    if (!c) return;
    cairo_pattern_t *pat = cairo_pattern_create_linear (2, 2, width, 2);
    cairo_pattern_add_color_stop_rgba(pat, 0.0, c->base[0],  c->base[1], c->base[2],  c->base[3]);
    cairo_pattern_add_color_stop_rgba(pat, 0.5, 0.0, 0.0, 0.0, 0.0);
    cairo_pattern_add_color_stop_rgba(pat, 1.0, c->base[0],  c->base[1], c->base[2],  c->base[3]);
    cairo_set_source(w->crb, pat);
    cairo_pattern_destroy (pat);
}

References Widget_t::app, Colors::base, Widget_t::crb, and get_color_scheme().

_slider_released()

void _slider_released	(	void *	w_,
		void *	button_,
		void *	user_data
	)

_slider_released - redraw the slider when button released

Parameters

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

Returns

void

Definition at line 187 of file xslider_private.c.

                                                                {
    Widget_t *w = (Widget_t*)w_;
    expose_widget(w);
}

References expose_widget().