diff options
Diffstat (limited to 'src/setup/txt_keyinput.c')
| -rw-r--r-- | src/setup/txt_keyinput.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/setup/txt_keyinput.c b/src/setup/txt_keyinput.c new file mode 100644 index 00000000..e385cc59 --- /dev/null +++ b/src/setup/txt_keyinput.c @@ -0,0 +1,193 @@ +// 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 <stdlib.h> +#include <string.h> + +#include "doomkeys.h" + +#include "txt_keyinput.h" +#include "txt_gui.h" +#include "txt_io.h" +#include "txt_label.h" +#include "txt_window.h" + +#define KEY_INPUT_WIDTH 8 + +static int KeyPressCallback(txt_window_t *window, int key, + TXT_UNCAST_ARG(key_input)) +{ + TXT_CAST_ARG(txt_key_input_t, key_input); + + if (key != KEY_ESCAPE) + { + // Got the key press. Save to the variable and close the window. + + *key_input->variable = key; + TXT_EmitSignal(key_input, "set"); + TXT_CloseWindow(window); + + // Re-enable key mappings now that we have the key + + TXT_EnableKeyMapping(1); + + return 1; + } + else + { + return 0; + } +} + +static void ReleaseGrab(TXT_UNCAST_ARG(window), TXT_UNCAST_ARG(unused)) +{ + SDL_WM_GrabInput(SDL_GRAB_OFF); +} + +static void OpenPromptWindow(txt_key_input_t *key_input) +{ + txt_window_t *window; + txt_label_t *label; + + 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 key..."); + + TXT_AddWidget(window, label); + TXT_SetWidgetAlign(label, TXT_HORIZ_CENTER); + + TXT_SetKeyListener(window, KeyPressCallback, key_input); + + // Disable key mappings while we prompt for the key press + + TXT_EnableKeyMapping(0); + + // Grab input while reading the key. On Windows Mobile + // handheld devices, the hardware keypresses are only + // detected when input is grabbed. + + SDL_WM_GrabInput(SDL_GRAB_ON); + TXT_SignalConnect(window, "closed", ReleaseGrab, NULL); +} + +static void TXT_KeyInputSizeCalc(TXT_UNCAST_ARG(key_input)) +{ + TXT_CAST_ARG(txt_key_input_t, key_input); + + // All keyinputs are the same size. + + key_input->widget.w = KEY_INPUT_WIDTH; + key_input->widget.h = 1; +} + + +static void TXT_KeyInputDrawer(TXT_UNCAST_ARG(key_input), int selected) +{ + TXT_CAST_ARG(txt_key_input_t, key_input); + char buf[20]; + int i; + + if (*key_input->variable == 0) + { + strcpy(buf, ""); + } + else + { + TXT_GetKeyDescription(*key_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<KEY_INPUT_WIDTH; ++i) + { + TXT_DrawString(" "); + } +} + +static void TXT_KeyInputDestructor(TXT_UNCAST_ARG(key_input)) +{ +} + +static int TXT_KeyInputKeyPress(TXT_UNCAST_ARG(key_input), int key) +{ + TXT_CAST_ARG(txt_key_input_t, key_input); + + if (key == KEY_ENTER) + { + // Open a window to prompt for the new key press + + OpenPromptWindow(key_input); + + return 1; + } + + return 0; +} + +static void TXT_KeyInputMousePress(TXT_UNCAST_ARG(widget), int x, int y, int b) +{ + TXT_CAST_ARG(txt_key_input_t, widget); + + // Clicking is like pressing enter + + if (b == TXT_MOUSE_LEFT) + { + TXT_KeyInputKeyPress(widget, KEY_ENTER); + } +} + +txt_widget_class_t txt_key_input_class = +{ + TXT_KeyInputSizeCalc, + TXT_KeyInputDrawer, + TXT_KeyInputKeyPress, + TXT_KeyInputDestructor, + TXT_KeyInputMousePress, + NULL, +}; + +txt_key_input_t *TXT_NewKeyInput(int *variable) +{ + txt_key_input_t *key_input; + + key_input = malloc(sizeof(txt_key_input_t)); + + TXT_InitWidget(key_input, &txt_key_input_class); + key_input->variable = variable; + + return key_input; +} + |