ex_gui_curve.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <allegro5/allegro_primitives.h>
#include "nilorea/n_common.h"
#include "nilorea/n_log.h"
#include "nilorea/n_gui.h"
#include "nilorea/n_gui_curve.h"

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Macros
#define	ALLEGRO_UNSTABLE   1
#define	AT_X(cx)
	the editor sits at 50,50 and is 200 by 100: display position of a curve coordinate
#define	AT_Y(cy)
	as AT_X, for y

Functions
static void	background (float x, float y, float w, float h, void *user_data)
	a background
static void	drag (N_GUI_CTX *gui, float fx, float fy, float tx, float ty)
	press, drag to, release
static void	expect_true (const char *what, int ok)
	record one check
static void	feed (N_GUI_CTX *gui, int type, int x, int y, int button)
	feed one mouse event at display coordinates
static float	flat (const float *xs, const float *ys, int count, float x, void *user_data)
	a caller's own curve: flat
int	main (int argc, char **argv)
static int	near (float a, float b)
	is a near b
static void	on_change (int widget_id, int dragging, void *user_data)
	change callback
static int	process_args (int argc, char **argv)
	read -V LOGLEVEL
static void	right (N_GUI_CTX *gui, float cx, float cy)
	right press

Variables
static int	background_drawn = 0
	did the background draw
static int	changes = 0
	changes seen: all of them, and those that were drag steps
static int	drag_changes = 0
static int	failures = 0
static int	log_level = 3

Macro Definition Documentation

ALLEGRO_UNSTABLE

#define ALLEGRO_UNSTABLE   1

Definition at line 16 of file ex_gui_curve.c.

AT_X

#define AT_X

(

cx

)

Value:

((int)(50.0f + (cx) * 200.0f + 0.5f))

the editor sits at 50,50 and is 200 by 100: display position of a curve coordinate

Definition at line 102 of file ex_gui_curve.c.

AT_Y

#define AT_Y

(

cy

)

Value:

((int)(50.0f + (1.0f - (cy)) * 100.0f + 0.5f))

as AT_X, for y

Definition at line 104 of file ex_gui_curve.c.

Function Documentation

background()

void background ( float x, float y, float w, float h, void * user_data )

static

a background

Examples

ex_gui_curve.c.

Definition at line 81 of file ex_gui_curve.c.

References background_drawn.

Referenced by main(), and n_gui_md_style_default().

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drag()

void drag ( N_GUI_CTX * gui, float fx, float fy, float tx, float ty )

static

press, drag to, release

Definition at line 107 of file ex_gui_curve.c.

References AT_X, AT_Y, feed(), and gui.

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expect_true()

void expect_true ( const char * what, int ok )

static

record one check

Definition at line 39 of file ex_gui_curve.c.

References failures, LOG_ERR, LOG_INFO, and n_log.

feed()

void feed ( N_GUI_CTX * gui, int type, int x, int y, int button )

static

feed one mouse event at display coordinates

Definition at line 88 of file ex_gui_curve.c.

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

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flat()

float flat ( const float * xs, const float * ys, int count, float x, void * user_data )

static

a caller's own curve: flat

Examples

ex_gui_curve.c, and ex_gui_round.c.

Definition at line 71 of file ex_gui_curve.c.

Referenced by main(), and run().

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main()

int main	(	int	argc,
		char **	argv )

Definition at line 126 of file ex_gui_curve.c.

References AT_X, AT_Y, background(), background_drawn, changes, drag(), drag_changes, expect_true(), failures, feed(), flat(), font, gui, LOG_ERR, log_level, n_gui_add_label(), n_gui_add_window(), N_GUI_ALIGN_LEFT, n_gui_curve_eval(), n_gui_curve_eval_points(), n_gui_curve_get_points(), n_gui_curve_new(), n_gui_curve_set_background(), n_gui_curve_set_eval(), n_gui_curve_set_point_radius(), n_gui_curve_set_points(), n_gui_destroy_ctx(), n_gui_draw(), n_gui_new_ctx(), n_gui_open_window(), n_gui_set_display_size(), N_GUI_WIN_FRAMELESS, n_gui_window_set_flags(), n_log, near(), on_change(), process_args(), right(), and set_log_level().

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near()

int near ( float a, float b )

static

is a near b

Definition at line 122 of file ex_gui_curve.c.

on_change()

void on_change ( int widget_id, int dragging, void * user_data )

static

change callback

Definition at line 63 of file ex_gui_curve.c.

References changes, and drag_changes.

process_args()

int process_args ( int argc, char ** argv )

static

read -V LOGLEVEL

Definition at line 49 of file ex_gui_curve.c.

References log_level.

right()

void right ( N_GUI_CTX * gui, float cx, float cy )

static

right press

Examples

ex_gui_curve.c, and ex_gui_label_lines.c.

Definition at line 115 of file ex_gui_curve.c.

References AT_X, AT_Y, feed(), and gui.

Referenced by _datagrid_header_hit(), _set_clipping_rect_transformed(), heap_pop(), main(), n_gui_tree_draw_overlay(), parse_and(), parse_or(), and rule_align().

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Variable Documentation

background_drawn

int background_drawn = 0

static

did the background draw

Examples

ex_gui_curve.c.

Definition at line 36 of file ex_gui_curve.c.

Referenced by background(), and main().

changes

int changes = 0

static

changes seen: all of them, and those that were drag steps

Definition at line 34 of file ex_gui_curve.c.

drag_changes

int drag_changes = 0

static

Definition at line 34 of file ex_gui_curve.c.

failures

int failures = 0

static

Definition at line 31 of file ex_gui_curve.c.

log_level

int log_level = 3

static

Definition at line 30 of file ex_gui_curve.c.