ref: 79a36975024ac3e7d7e515a495cd7e65ef905b45
dir: /textscreen/txt_checkbox.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_checkbox.h" #include "txt_gui.h" #include "txt_io.h" #include "txt_main.h" #include "txt_utf8.h" #include "txt_window.h" static void TXT_CheckBoxSizeCalc(TXT_UNCAST_ARG(checkbox)) { TXT_CAST_ARG(txt_checkbox_t, checkbox); // Minimum width is the string length + right-side space for padding checkbox->widget.w = TXT_UTF8_Strlen(checkbox->label) + 5; checkbox->widget.h = 1; } static void TXT_CheckBoxDrawer(TXT_UNCAST_ARG(checkbox)) { TXT_CAST_ARG(txt_checkbox_t, checkbox); txt_saved_colors_t colors; int i; int w; w = checkbox->widget.w; TXT_SaveColors(&colors); TXT_FGColor(TXT_COLOR_BRIGHT_CYAN); TXT_DrawString("("); TXT_FGColor(TXT_COLOR_BRIGHT_WHITE); if ((*checkbox->variable != 0) ^ checkbox->inverted) { TXT_DrawCodePageString("\x07"); } else { TXT_DrawString(" "); } TXT_FGColor(TXT_COLOR_BRIGHT_CYAN); TXT_DrawString(") "); TXT_RestoreColors(&colors); TXT_SetWidgetBG(checkbox); TXT_DrawString(checkbox->label); for (i = TXT_UTF8_Strlen(checkbox->label); i < w-4; ++i) { TXT_DrawString(" "); } } static void TXT_CheckBoxDestructor(TXT_UNCAST_ARG(checkbox)) { TXT_CAST_ARG(txt_checkbox_t, checkbox); free(checkbox->label); } static int TXT_CheckBoxKeyPress(TXT_UNCAST_ARG(checkbox), int key) { TXT_CAST_ARG(txt_checkbox_t, checkbox); if (key == KEY_ENTER || key == ' ') { *checkbox->variable = !*checkbox->variable; TXT_EmitSignal(checkbox, "changed"); return 1; } return 0; } static void TXT_CheckBoxMousePress(TXT_UNCAST_ARG(checkbox), int x, int y, int b) { TXT_CAST_ARG(txt_checkbox_t, checkbox); if (b == TXT_MOUSE_LEFT) { // Equivalent to pressing enter TXT_CheckBoxKeyPress(checkbox, KEY_ENTER); } } txt_widget_class_t txt_checkbox_class = { TXT_AlwaysSelectable, TXT_CheckBoxSizeCalc, TXT_CheckBoxDrawer, TXT_CheckBoxKeyPress, TXT_CheckBoxDestructor, TXT_CheckBoxMousePress, NULL, }; txt_checkbox_t *TXT_NewCheckBox(const char *label, int *variable) { txt_checkbox_t *checkbox; checkbox = malloc(sizeof(txt_checkbox_t)); TXT_InitWidget(checkbox, &txt_checkbox_class); checkbox->label = strdup(label); checkbox->variable = variable; checkbox->inverted = 0; return checkbox; } txt_checkbox_t *TXT_NewInvertedCheckBox(const char *label, int *variable) { txt_checkbox_t *result; result = TXT_NewCheckBox(label, variable); result->inverted = 1; return result; }