ex_gui_color_picker.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_color.h"

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Macros
#define	ALLEGRO_UNSTABLE   1

Functions
static void	click_middle (N_GUI_CTX *gui, int window_id, int widget_id)
	click the middle of a widget, in display coordinates
static void	expect_true (const char *what, int ok)
	record one check
int	main (int argc, char **argv)
static void	on_change (const float rgba[4], void *user_data)
	the picker's callback
static int	process_args (int argc, char **argv)
	read -V LOGLEVEL
static ALLEGRO_COLOR	swatch_centre (const float rgba[4])
	draw a swatch into a memory bitmap and read the pixel at its centre

Variables
static float	changed [4] = {0.0f, 0.0f, 0.0f, 0.0f}
static int	changes = 0
	how many times the picker called back, and with what
static int	failures = 0
static int	log_level = 3

Macro Definition Documentation

ALLEGRO_UNSTABLE

#define ALLEGRO_UNSTABLE   1

Definition at line 15 of file ex_gui_color_picker.c.

Function Documentation

click_middle()

void click_middle ( N_GUI_CTX * gui, int window_id, int widget_id )

static

click the middle of a widget, in display coordinates

Examples

ex_gui_color_picker.c.

Definition at line 70 of file ex_gui_color_picker.c.

References gui, N_GUI_WIDGET::h, n_gui_get_widget(), n_gui_get_window(), n_gui_process_event(), N_GUI_WINDOW::titlebar_h, N_GUI_WIDGET::w, N_GUI_WIDGET::x, N_GUI_WINDOW::x, N_GUI_WIDGET::y, and N_GUI_WINDOW::y.

Referenced by main().

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expect_true()

void expect_true ( const char * what, int ok )

static

record one check

Definition at line 37 of file ex_gui_color_picker.c.

References failures, LOG_ERR, LOG_INFO, and n_log.

main()

int main	(	int	argc,
		char **	argv )

Definition at line 107 of file ex_gui_color_picker.c.

References changed, changes, clear(), click_middle(), expect_true(), failures, font, gui, LOG_ERR, log_level, n_gui_color_picker_close(), n_gui_color_picker_free(), n_gui_color_picker_get(), n_gui_color_picker_is_open(), n_gui_color_picker_new(), n_gui_color_picker_open(), n_gui_color_picker_slider(), n_gui_color_picker_window(), n_gui_color_to_hex(), n_gui_destroy_ctx(), n_gui_get_window(), n_gui_new_ctx(), n_gui_set_display_size(), n_gui_slider_get_value(), n_log, on_change(), process_args(), set_log_level(), swatch_centre(), N_GUI_WINDOW::w, and N_GUI_WINDOW::x.

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on_change()

void on_change ( const float rgba[4], void * user_data )

static

the picker's callback

Examples

ex_gui_color_picker.c, ex_gui_colorwheel.c, ex_gui_curve.c, and ex_gui_slider_default.c.

Definition at line 61 of file ex_gui_color_picker.c.

References changed, and changes.

Referenced by main(), main(), n_gui_add_slider(), n_gui_add_splitpane(), n_gui_add_textarea(), n_gui_add_vslider(), n_gui_color_picker_open(), n_gui_colorwheel_new(), n_gui_curve_new(), and n_gui_hexview_set_on_change().

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process_args()

int process_args ( int argc, char ** argv )

static

read -V LOGLEVEL

Definition at line 47 of file ex_gui_color_picker.c.

References log_level.

swatch_centre()

ALLEGRO_COLOR swatch_centre ( const float rgba[4] )

static

draw a swatch into a memory bitmap and read the pixel at its centre

Examples

ex_gui_color_picker.c.

Definition at line 89 of file ex_gui_color_picker.c.

References n_gui_draw_color_swatch().

Referenced by main().

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Variable Documentation

changed

float changed[4] = {0.0f, 0.0f, 0.0f, 0.0f}

static

Examples

ex_gui_color_picker.c.

Definition at line 34 of file ex_gui_color_picker.c.

Referenced by _hexview_handle_key(), main(), n_gui_tree_remove_node(), n_gui_tree_state_apply(), and on_change().

changes

int changes = 0

static

how many times the picker called back, and with what

Examples

ex_gui_color_picker.c, ex_gui_colorwheel.c, ex_gui_curve.c, and ex_gui_slider_default.c.

Definition at line 33 of file ex_gui_color_picker.c.

Referenced by main(), main(), on_change(), on_change(), on_change(), and on_change().

failures

int failures = 0

static

Definition at line 30 of file ex_gui_color_picker.c.

log_level

int log_level = 3

static

Definition at line 29 of file ex_gui_color_picker.c.