summaryrefslogtreecommitdiff
path: root/setup/txt_joybinput.c
blob: 1e132962a8337b08ae65eb1cc7e71e7f984d542b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// Copyright(C) 2006 Simon Howard
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
//

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "SDL_joystick.h"

#include "doomkeys.h"
#include "joystick.h"

#include "txt_joybinput.h"
#include "txt_gui.h"
#include "txt_io.h"
#include "txt_label.h"
#include "txt_sdl.h"
#include "txt_window.h"

#define JOYSTICK_INPUT_WIDTH 10

// Called in response to SDL events when the prompt window is open:

static int EventCallback(SDL_Event *event, TXT_UNCAST_ARG(joystick_input))
{
    TXT_CAST_ARG(txt_joystick_input_t, joystick_input);

    // Got the joystick button press?

    if (event->type == SDL_JOYBUTTONDOWN)
    {
        *joystick_input->variable = event->jbutton.button;
        TXT_EmitSignal(joystick_input, "set");
        TXT_CloseWindow(joystick_input->prompt_window);
        return 1;
    }

    return 0;
}

// When the prompt window is closed, disable the event callback function;
// we are no longer interested in receiving notification of events.

static void PromptWindowClosed(TXT_UNCAST_ARG(widget), TXT_UNCAST_ARG(joystick))
{
    TXT_CAST_ARG(SDL_Joystick, joystick);

    SDL_JoystickClose(joystick);
    TXT_SDL_SetEventCallback(NULL, NULL);
    SDL_JoystickEventState(SDL_DISABLE);
    SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
}

static void OpenErrorWindow(void)
{
    txt_window_t *window;

    window = TXT_NewWindow(NULL);

    TXT_AddWidget(window, TXT_NewLabel("Please configure a joystick first!"));

    TXT_SetWindowAction(window, TXT_HORIZ_LEFT, NULL);
    TXT_SetWindowAction(window, TXT_HORIZ_CENTER, 
                        TXT_NewWindowEscapeAction(window));
    TXT_SetWindowAction(window, TXT_HORIZ_RIGHT, NULL);
}

static void OpenPromptWindow(txt_joystick_input_t *joystick_input)
{
    txt_window_t *window;
    txt_label_t *label;
    SDL_Joystick *joystick;

    if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
    {
        return;
    }

    // Check the current joystick is valid

    joystick = SDL_JoystickOpen(joystick_index);

    if (joystick == NULL)
    {
        OpenErrorWindow();
        return;
    }

    // Open the prompt window

    window = TXT_NewWindow(NULL);
    TXT_SetWindowAction(window, TXT_HORIZ_LEFT, NULL);
    TXT_SetWindowAction(window, TXT_HORIZ_CENTER, 
                        TXT_NewWindowAbortAction(window));
    TXT_SetWindowAction(window, TXT_HORIZ_RIGHT, NULL);
    
    label = TXT_NewLabel("Press the new joystick button...");

    TXT_AddWidget(window, label);
    TXT_SetWidgetAlign(label, TXT_HORIZ_CENTER);
    TXT_SDL_SetEventCallback(EventCallback, joystick_input);
    TXT_SignalConnect(window, "closed", PromptWindowClosed, joystick);
    joystick_input->prompt_window = window;

    SDL_JoystickEventState(SDL_ENABLE);
}

static void TXT_JoystickInputSizeCalc(TXT_UNCAST_ARG(joystick_input))
{
    TXT_CAST_ARG(txt_joystick_input_t, joystick_input);

    // All joystickinputs are the same size.

    joystick_input->widget.w = JOYSTICK_INPUT_WIDTH;
    joystick_input->widget.h = 1;
}

static void GetJoystickButtonDescription(int button, char *buf)
{
    sprintf(buf, "BUTTON #%i", button + 1);
}

static void TXT_JoystickInputDrawer(TXT_UNCAST_ARG(joystick_input), int selected)
{
    TXT_CAST_ARG(txt_joystick_input_t, joystick_input);
    char buf[20];
    int i;

    if (*joystick_input->variable < 0)
    {
        strcpy(buf, "(none)");
    }
    else
    {
        GetJoystickButtonDescription(*joystick_input->variable, buf);
    }

    if (selected)
    {
        TXT_BGColor(TXT_COLOR_GREY, 0);
    }
    else
    {
        TXT_BGColor(TXT_COLOR_BLUE, 0);
    }

    TXT_FGColor(TXT_COLOR_BRIGHT_WHITE);
    
    TXT_DrawString(buf);
    
    for (i=strlen(buf); i<JOYSTICK_INPUT_WIDTH; ++i)
    {
        TXT_DrawString(" ");
    }
}

static void TXT_JoystickInputDestructor(TXT_UNCAST_ARG(joystick_input))
{
}

static int TXT_JoystickInputKeyPress(TXT_UNCAST_ARG(joystick_input), int joystick)
{
    TXT_CAST_ARG(txt_joystick_input_t, joystick_input);

    if (joystick == KEY_ENTER)
    {
        // Open a window to prompt for the new joystick press

        OpenPromptWindow(joystick_input);

        return 1;
    }

    return 0;
}

static void TXT_JoystickInputMousePress(TXT_UNCAST_ARG(widget), int x, int y, int b)
{
    TXT_CAST_ARG(txt_joystick_input_t, widget);
            
    // Clicking is like pressing enter

    if (b == TXT_MOUSE_LEFT)
    {
        TXT_JoystickInputKeyPress(widget, KEY_ENTER);
    }
}

txt_widget_class_t txt_joystick_input_class =
{
    TXT_JoystickInputSizeCalc,
    TXT_JoystickInputDrawer,
    TXT_JoystickInputKeyPress,
    TXT_JoystickInputDestructor,
    TXT_JoystickInputMousePress,
    NULL,
};

txt_joystick_input_t *TXT_NewJoystickInput(int *variable)
{
    txt_joystick_input_t *joystick_input;

    joystick_input = malloc(sizeof(txt_joystick_input_t));

    TXT_InitWidget(joystick_input, &txt_joystick_input_class);
    joystick_input->variable = variable;

    return joystick_input;
}