ref: 5b3b1bbab6c49148b9309d0a9de0ef33e1a63513
dir: /textscreen/txt_radiobutton.c/
// // Copyright(C) 2005-2014 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. // #include <stdlib.h> #include <string.h> #include "doomkeys.h" #include "txt_radiobutton.h" #include "txt_gui.h" #include "txt_io.h" #include "txt_main.h" #include "txt_utf8.h" #include "txt_window.h" static void TXT_RadioButtonSizeCalc(TXT_UNCAST_ARG(radiobutton)) { TXT_CAST_ARG(txt_radiobutton_t, radiobutton); // Minimum width is the string length + right-side spaces for padding radiobutton->widget.w = TXT_UTF8_Strlen(radiobutton->label) + 5; radiobutton->widget.h = 1; } static void TXT_RadioButtonDrawer(TXT_UNCAST_ARG(radiobutton)) { TXT_CAST_ARG(txt_radiobutton_t, radiobutton); txt_saved_colors_t colors; int i; int w; w = radiobutton->widget.w; TXT_SaveColors(&colors); TXT_FGColor(TXT_COLOR_BRIGHT_CYAN); TXT_DrawString("("); TXT_FGColor(TXT_COLOR_BRIGHT_WHITE); if (*radiobutton->variable == radiobutton->value) { TXT_DrawCodePageString("\x07"); } else { TXT_DrawString(" "); } TXT_FGColor(TXT_COLOR_BRIGHT_CYAN); TXT_DrawString(") "); TXT_RestoreColors(&colors); TXT_SetWidgetBG(radiobutton); TXT_DrawString(radiobutton->label); for (i=TXT_UTF8_Strlen(radiobutton->label); i < w-5; ++i) { TXT_DrawString(" "); } } static void TXT_RadioButtonDestructor(TXT_UNCAST_ARG(radiobutton)) { TXT_CAST_ARG(txt_radiobutton_t, radiobutton); free(radiobutton->label); } static int TXT_RadioButtonKeyPress(TXT_UNCAST_ARG(radiobutton), int key) { TXT_CAST_ARG(txt_radiobutton_t, radiobutton); if (key == KEY_ENTER || key == ' ') { if (*radiobutton->variable != radiobutton->value) { *radiobutton->variable = radiobutton->value; TXT_EmitSignal(radiobutton, "selected"); } return 1; } return 0; } static void TXT_RadioButtonMousePress(TXT_UNCAST_ARG(radiobutton), int x, int y, int b) { TXT_CAST_ARG(txt_radiobutton_t, radiobutton); if (b == TXT_MOUSE_LEFT) { // Equivalent to pressing enter TXT_RadioButtonKeyPress(radiobutton, KEY_ENTER); } } txt_widget_class_t txt_radiobutton_class = { TXT_AlwaysSelectable, TXT_RadioButtonSizeCalc, TXT_RadioButtonDrawer, TXT_RadioButtonKeyPress, TXT_RadioButtonDestructor, TXT_RadioButtonMousePress, NULL, }; txt_radiobutton_t *TXT_NewRadioButton(const char *label, int *variable, int value) { txt_radiobutton_t *radiobutton; radiobutton = malloc(sizeof(txt_radiobutton_t)); TXT_InitWidget(radiobutton, &txt_radiobutton_class); radiobutton->label = strdup(label); radiobutton->variable = variable; radiobutton->value = value; return radiobutton; } void TXT_SetRadioButtonLabel(txt_radiobutton_t *radiobutton, const char *value) { free(radiobutton->label); radiobutton->label = strdup(value); }