1/* Copyright (c) 2013-2015 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#ifndef GUI_H
 7#define GUI_H
 8
 9#include "util/common.h"
10
11CXX_GUARD_START
12
13#include "core/input.h"
14#include "util/vector.h"
15
16struct GUIFont;
17
18enum GUIInput {
19	GUI_INPUT_NONE = -1,
20	GUI_INPUT_SELECT = 0,
21	GUI_INPUT_BACK,
22	GUI_INPUT_CANCEL,
23
24	GUI_INPUT_UP,
25	GUI_INPUT_DOWN,
26	GUI_INPUT_LEFT,
27	GUI_INPUT_RIGHT,
28
29	GUI_INPUT_USER_START = 0x8,
30
31	GUI_INPUT_MAX = 0x20
32};
33
34enum GUICursorState {
35	GUI_CURSOR_NOT_PRESENT = 0,
36	GUI_CURSOR_UP,
37	GUI_CURSOR_DOWN,
38	GUI_CURSOR_CLICKED,
39	GUI_CURSOR_DRAGGING
40};
41
42enum {
43	BATTERY_EMPTY = 0,
44	BATTERY_LOW = 1,
45	BATTERY_HALF = 2,
46	BATTERY_HIGH = 3,
47	BATTERY_FULL = 4,
48
49	BATTERY_CHARGING = 8
50};
51
52struct GUIBackground {
53	void (*draw)(struct GUIBackground*, void* context);
54};
55
56struct GUIParams {
57	unsigned width;
58	unsigned height;
59	const struct GUIFont* font;
60	const char* basePath;
61
62	void (*drawStart)(void);
63	void (*drawEnd)(void);
64	uint32_t (*pollInput)(const struct mInputMap*);
65	enum GUICursorState (*pollCursor)(unsigned* x, unsigned* y);
66	int (*batteryState)(void);
67	void (*guiPrepare)(void);
68	void (*guiFinish)(void);
69
70	// State
71	struct mInputMap keyMap;
72	int inputHistory[GUI_INPUT_MAX];
73	enum GUICursorState cursorState;
74	int cx, cy;
75
76	// Directories
77	char currentPath[PATH_MAX];
78	size_t fileIndex;
79};
80
81void GUIInit(struct GUIParams* params);
82void GUIPollInput(struct GUIParams* params, uint32_t* newInput, uint32_t* heldInput);
83enum GUICursorState GUIPollCursor(struct GUIParams* params, unsigned* x, unsigned* y);
84void GUIInvalidateKeys(struct GUIParams* params);
85
86CXX_GUARD_END
87
88#endif