ref: 70e494cff6500a0619f786a0de4c40f5c16e4dde
dir: /textscreen/txt_button.c/
#include <stdlib.h> #include <string.h> #include "doomkeys.h" #include "txt_button.h" #include "txt_io.h" #include "txt_main.h" #include "txt_window.h" static void TXT_ButtonSizeCalc(TXT_UNCAST_ARG(button)) { TXT_CAST_ARG(txt_button_t, button); button->widget.w = strlen(button->label); button->widget.h = 1; } static void TXT_ButtonDrawer(TXT_UNCAST_ARG(button), int selected) { TXT_CAST_ARG(txt_button_t, button); int i; int w; w = button->widget.w; TXT_BGColor(TXT_COLOR_BLUE, 0); TXT_FGColor(TXT_COLOR_BRIGHT_WHITE); if (selected) { TXT_BGColor(TXT_COLOR_GREY, 0); } TXT_DrawString(button->label); for (i=strlen(button->label); i < w; ++i) { TXT_DrawString(" "); } } static void TXT_ButtonDestructor(TXT_UNCAST_ARG(button)) { TXT_CAST_ARG(txt_button_t, button); free(button->label); } static int TXT_ButtonKeyPress(TXT_UNCAST_ARG(button), int key) { TXT_CAST_ARG(txt_button_t, button); if (key == KEY_ENTER) { TXT_EmitSignal(button, "pressed"); return 1; } return 0; } static void TXT_ButtonMousePress(TXT_UNCAST_ARG(button), int x, int y, int b) { TXT_CAST_ARG(txt_button_t, button); if (b == TXT_MOUSE_LEFT) { // Equivalent to pressing enter TXT_ButtonKeyPress(button, KEY_ENTER); } } txt_widget_class_t txt_button_class = { TXT_ButtonSizeCalc, TXT_ButtonDrawer, TXT_ButtonKeyPress, TXT_ButtonDestructor, TXT_ButtonMousePress, }; txt_button_t *TXT_NewButton(char *label) { txt_button_t *button; button = malloc(sizeof(txt_button_t)); TXT_InitWidget(button, &txt_button_class); button->label = strdup(label); return button; }