ref: 94bff80737b6e3d04ad9c02b06739a431e0396f9
dir: /textscreen/txt_button.c/
// 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_button.h" #include "txt_gui.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, NULL, }; void TXT_SetButtonLabel(txt_button_t *button, char *label) { free(button->label); button->label = strdup(label); } 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; } // Button with a callback set automatically txt_button_t *TXT_NewButton2(char *label, TxtWidgetSignalFunc func, void *user_data) { txt_button_t *button; button = TXT_NewButton(label); TXT_SignalConnect(button, "pressed", func, user_data); return button; }