ex_gui_slider_default.c File Reference

#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "nilorea/n_common.h"
#include "nilorea/n_gui.h"
#include "nilorea/n_log.h"

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Macros
#define	ALLEGRO_UNSTABLE   1

Functions
static void	expect_true (const char *label, int cond)
	Assert a condition, logging which check failed.
int	main (void)
static ALLEGRO_EVENT	mouse_event (int type, int x, int y)
	Build a left-button mouse event at (x, y).
static void	on_change (int widget_id, double value, void *user_data)
	The slider's on_change: count the calls and keep the value.
static void	press_at (N_GUI_CTX *gui, int x, int y, int release)
	Press the primary button at (x, y), and release it unless asked not to.

Variables
static int	changes = 0
	How many times on_change ran, and the last value it was given.
static int	failures = 0
	Count of failed assertions.
static double	last_value = -1.0
	how many times the picker called back, and with what

Macro Definition Documentation

ALLEGRO_UNSTABLE

#define ALLEGRO_UNSTABLE   1

Definition at line 36 of file ex_gui_slider_default.c.

Function Documentation

expect_true()

void expect_true ( const char * label, int cond )

static

Assert a condition, logging which check failed.

Parameters

label	What is being checked.
cond	Non-zero to pass.

Definition at line 60 of file ex_gui_slider_default.c.

References failures, LOG_ERR, LOG_INFO, and n_log.

main()

int main

(

void

)

Definition at line 112 of file ex_gui_slider_default.c.

References changes, expect_true(), failures, font, gui, last_value, LOG_ERR, LOG_NOTICE, mouse_event(), n_gui_add_slider(), n_gui_add_window(), n_gui_destroy_ctx(), n_gui_new_ctx(), n_gui_open_window(), n_gui_process_event(), n_gui_set_display_size(), n_gui_slider_get_default(), n_gui_slider_get_value(), n_gui_slider_set_default(), N_GUI_SLIDER_VALUE, N_GUI_WIN_FRAMELESS, n_gui_window_set_flags(), n_log, on_change(), press_at(), and set_log_level().

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mouse_event()

ALLEGRO_EVENT mouse_event ( int type, int x, int y )

static

Build a left-button mouse event at (x, y).

Parameters

type	The ALLEGRO_EVENT_MOUSE_* type.
x	Cursor x.
y	Cursor y.

Returns

The event.

Definition at line 89 of file ex_gui_slider_default.c.

References type().

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on_change()

void on_change ( int widget_id, double value, void * user_data )

static

The slider's on_change: count the calls and keep the value.

Parameters

widget_id	The slider.
value	Its new value.
user_data	Unused.

Definition at line 75 of file ex_gui_slider_default.c.

References changes, and last_value.

press_at()

void press_at ( N_GUI_CTX * gui, int x, int y, int release )

static

Press the primary button at (x, y), and release it unless asked not to.

Parameters

gui	GUI context.
x	Cursor x.
y	Cursor y.
release	Non-zero to send the release as well.

Definition at line 106 of file ex_gui_slider_default.c.

References gui, mouse_event(), and n_gui_process_event().

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Variable Documentation

changes

int changes = 0

static

How many times on_change ran, and the last value it was given.

Definition at line 51 of file ex_gui_slider_default.c.

failures

int failures = 0

static

Count of failed assertions.

Definition at line 48 of file ex_gui_slider_default.c.

last_value

double last_value = -1.0

static

how many times the picker called back, and with what

Examples

ex_gui_slider_default.c.

Definition at line 53 of file ex_gui_slider_default.c.

Referenced by main(), and on_change().