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 "util/vector.h"
12
13struct GUIFont;
14
15enum GUIInput {
16	GUI_INPUT_NONE = -1,
17	GUI_INPUT_SELECT = 0,
18	GUI_INPUT_BACK,
19	GUI_INPUT_CANCEL,
20
21	GUI_INPUT_UP,
22	GUI_INPUT_DOWN,
23	GUI_INPUT_LEFT,
24	GUI_INPUT_RIGHT,
25
26	GUI_INPUT_USER_START = 0x10,
27
28	GUI_INPUT_MAX = 0x20
29};
30
31struct GUIBackground {
32	void (*draw)(struct GUIBackground*, void* context);
33};
34
35struct GUIParams {
36	unsigned width;
37	unsigned height;
38	const struct GUIFont* font;
39	const char* basePath;
40
41	void (*drawStart)(void);
42	void (*drawEnd)(void);
43	uint32_t (*pollInput)(void);
44	void (*guiPrepare)(void);
45	void (*guiFinish)(void);
46
47	// State
48	int inputHistory[GUI_INPUT_MAX];
49
50	// Directories
51	char currentPath[PATH_MAX];
52	size_t fileIndex;
53};
54
55#define GUI_PARAMS_TRAIL {}, "", 0
56
57void GUIInit(struct GUIParams* params);
58void GUIPollInput(struct GUIParams* params, uint32_t* newInput, uint32_t* heldInput);
59void GUIInvalidateKeys(struct GUIParams* params);
60
61#endif