/**************************************************************************
* task :
* -
*
**************************************************************************/

#ifndef TASK_H
#define TASK_H

#include <X11/Xlib.h>
#include <pango/pangocairo.h>
#include <Imlib2.h>
#include "common.h"
#include "timer.h"

typedef enum TaskState {
	TASK_NORMAL = 0,
	TASK_ACTIVE,
	TASK_ICONIFIED,
	TASK_URGENT,
	TASK_UNDEFINED,
	TASK_STATE_COUNT,
} TaskState;

typedef struct GlobalTask {
	Area area;
	gboolean has_text;
	gboolean has_icon;
	gboolean centered;
	int icon_posy;
	int icon_size1;
	int maximum_width;
	int maximum_height;
	int alpha[TASK_STATE_COUNT];
	int saturation[TASK_STATE_COUNT];
	int brightness[TASK_STATE_COUNT];
	int config_asb_mask;
	Background *background[TASK_STATE_COUNT];
	GList *gradient[TASK_STATE_COUNT];
	int config_background_mask;
	// starting position for text ~ task_padding + task_border + icon_size
	double text_posx, text_height;
	gboolean has_font;
	PangoFontDescription *font_desc;
	Color font[TASK_STATE_COUNT];
	int config_font_mask;
	gboolean tooltip_enabled;
} GlobalTask;

// Stores information about a task.
// Warning: any dynamically allocated members are shared between the Task instances created for the same window
// (if the task appears on all desktops, there will be a different instance on each desktop's taskbar).
typedef struct Task {
	Area area;
	Window win;
	int desktop;
	TaskState current_state;
	Imlib_Image icon[TASK_STATE_COUNT];
	Imlib_Image icon_hover[TASK_STATE_COUNT];
	Imlib_Image icon_press[TASK_STATE_COUNT];
	unsigned int icon_width;
	unsigned int icon_height;
	char *title;
	int urgent_tick;
	// These may not be up-to-date
	int win_x;
	int win_y;
	int win_w;
	int win_h;
	struct timespec last_activation_time;
	int _text_width;
	int _text_height;
	double _text_posy;
	int _icon_x;
	int _icon_y;
} Task;

extern timeout *urgent_timeout;
extern GSList *urgent_list;

Task *add_task(Window win);
void remove_task(Task *task);

void draw_task(void *obj, cairo_t *c);
void on_change_task(void *obj);

void task_update_icon(Task *task);
gboolean task_update_title(Task *task);
void reset_active_task();
void set_task_state(Task *task, TaskState state);

// Given a pointer to the task that is currently under the mouse (current_task),
// returns a pointer to the Task for the active window on the same taskbar.
// If not found, returns the current task.
Task *find_active_task(Task *current_task);

Task *next_task(Task *task);
Task *prev_task(Task *task);

void add_urgent(Task *task);
void del_urgent(Task *task);

#endif