ex_gui_frameless_drag.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	drag_right (N_GUI_CTX *gui, int x, int y, int step)
	Press at (x, y), move right in three steps of step with the button held, and release where the pointer ended.
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 mouse event at (x, y).
static void	on_slider (int id, double value, void *data)
	Slider callback: counts the changes it is told about.

Variables
static int	failures = 0
	Count of failed assertions.
static int	slider_changes = 0
	How many times the slider's callback fired.

Macro Definition Documentation

ALLEGRO_UNSTABLE

#define ALLEGRO_UNSTABLE   1

Definition at line 41 of file ex_gui_frameless_drag.c.

Function Documentation

drag_right()

void drag_right ( N_GUI_CTX * gui, int x, int y, int step )

static

Press at (x, y), move right in three steps of step with the button held, and release where the pointer ended.

Parameters

gui	The context.
x	Press x.
y	Press y.
step	Pixels per motion event.

Examples

ex_gui_frameless_drag.c.

Definition at line 110 of file ex_gui_frameless_drag.c.

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

Referenced by main().

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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 63 of file ex_gui_frameless_drag.c.

References failures, LOG_ERR, LOG_INFO, and n_log.

main()

int main

(

void

)

Definition at line 120 of file ex_gui_frameless_drag.c.

References drag_right(), expect_true(), failures, font, gui, LOG_ERR, LOG_NOTICE, n_gui_add_image(), n_gui_add_slider(), n_gui_add_window(), n_gui_destroy_ctx(), n_gui_get_window(), N_GUI_IMAGE_FIT, n_gui_new_ctx(), n_gui_open_window(), n_gui_set_display_size(), n_gui_slider_get_value(), n_gui_slider_set_value(), N_GUI_SLIDER_VALUE, N_GUI_WIN_FRAMELESS, n_gui_window_set_flags(), n_log, on_slider(), set_log_level(), slider_changes, N_GUI_WINDOW::x, and N_GUI_WINDOW::y.

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mouse_event()

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

static

Build a mouse event at (x, y).

Parameters

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

Returns

The event.

Definition at line 92 of file ex_gui_frameless_drag.c.

References type().

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on_slider()

void on_slider ( int id, double value, void * data )

static

Slider callback: counts the changes it is told about.

Parameters

id	Widget id, unused.
value	New value, unused.
data	Unused.

Examples

ex_gui_frameless_drag.c.

Definition at line 78 of file ex_gui_frameless_drag.c.

References slider_changes.

Referenced by main().

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Variable Documentation

failures

int failures = 0

static

Count of failed assertions.

Definition at line 53 of file ex_gui_frameless_drag.c.

slider_changes

int slider_changes = 0

static

How many times the slider's callback fired.

Examples

ex_gui_frameless_drag.c.

Definition at line 56 of file ex_gui_frameless_drag.c.

Referenced by main(), and on_slider().