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
11#include "core/input.h"
12#include "util/vector.h"
13
14struct GUIFont;
15
16enum GUIInput {
17	GUI_INPUT_NONE = -1,
18	GUI_INPUT_SELECT = 0,
19	GUI_INPUT_BACK,
20	GUI_INPUT_CANCEL,
21
22	GUI_INPUT_UP,
23	GUI_INPUT_DOWN,
24	GUI_INPUT_LEFT,
25	GUI_INPUT_RIGHT,
26
27	GUI_INPUT_USER_START = 0x8,
28
29	GUI_INPUT_MAX = 0x20
30};
31
32enum GUICursorState {
33	GUI_CURSOR_NOT_PRESENT = 0,
34	GUI_CURSOR_UP,
35	GUI_CURSOR_DOWN,
36	GUI_CURSOR_CLICKED,
37	GUI_CURSOR_DRAGGING
38};
39
40enum {
41	BATTERY_EMPTY = 0,
42	BATTERY_LOW = 1,
43	BATTERY_HALF = 2,
44	BATTERY_HIGH = 3,
45	BATTERY_FULL = 4,
46
47	BATTERY_CHARGING = 8
48};
49
50struct GUIBackground {
51	void (*draw)(struct GUIBackground*, void* context);
52};
53
54struct GUIParams {
55	unsigned width;
56	unsigned height;
57	const struct GUIFont* font;
58	const char* basePath;
59
60	void (*drawStart)(void);
61	void (*drawEnd)(void);
62	uint32_t (*pollInput)(const struct mInputMap*);
63	enum GUICursorState (*pollCursor)(unsigned* x, unsigned* y);
64	int (*batteryState)(void);
65	void (*guiPrepare)(void);
66	void (*guiFinish)(void);
67
68	// State
69	struct mInputMap keyMap;
70	int inputHistory[GUI_INPUT_MAX];
71	enum GUICursorState cursorState;
72	int cx, cy;
73
74	// Directories
75	char currentPath[PATH_MAX];
76	size_t fileIndex;
77};
78
79void GUIInit(struct GUIParams* params);
80void GUIPollInput(struct GUIParams* params, uint32_t* newInput, uint32_t* heldInput);
81enum GUICursorState GUIPollCursor(struct GUIParams* params, unsigned* x, unsigned* y);
82void GUIInvalidateKeys(struct GUIParams* params);
83
84#endif