Add efacf056cd

dockerdoom/trunk/setup/txt_joybinput.c

@@ -0,0 +1,230 @@
+// 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;
+
+        if (joystick_input->check_conflicts)
+        {
+            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;
+
+    // Silently update when the shift button is held down.
+
+    joystick_input->check_conflicts = !TXT_GetModifierState(TXT_MOD_SHIFT);
+
+    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);
+    }
+
+    TXT_SetWidgetBG(joystick_input, selected);
+    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_AlwaysSelectable,
+    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;
+}
+