127 lines
2.6 KiB
C
127 lines
2.6 KiB
C
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//
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// Copyright(C) 2005-2014 Simon Howard
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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#include <stdlib.h>
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#include <string.h>
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#include "doomkeys.h"
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#include "txt_button.h"
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#include "txt_gui.h"
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#include "txt_io.h"
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#include "txt_main.h"
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#include "txt_window.h"
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static void TXT_ButtonSizeCalc(TXT_UNCAST_ARG(button))
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{
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TXT_CAST_ARG(txt_button_t, button);
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button->widget.w = strlen(button->label);
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button->widget.h = 1;
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}
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static void TXT_ButtonDrawer(TXT_UNCAST_ARG(button))
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{
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TXT_CAST_ARG(txt_button_t, button);
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int i;
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int w;
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w = button->widget.w;
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TXT_SetWidgetBG(button);
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TXT_DrawString(button->label);
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for (i=strlen(button->label); i < w; ++i)
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{
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TXT_DrawString(" ");
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}
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}
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static void TXT_ButtonDestructor(TXT_UNCAST_ARG(button))
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{
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TXT_CAST_ARG(txt_button_t, button);
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free(button->label);
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}
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static int TXT_ButtonKeyPress(TXT_UNCAST_ARG(button), int key)
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{
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TXT_CAST_ARG(txt_button_t, button);
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if (key == KEY_ENTER)
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{
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TXT_EmitSignal(button, "pressed");
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return 1;
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}
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return 0;
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}
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static void TXT_ButtonMousePress(TXT_UNCAST_ARG(button), int x, int y, int b)
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{
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TXT_CAST_ARG(txt_button_t, button);
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if (b == TXT_MOUSE_LEFT)
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{
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// Equivalent to pressing enter
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TXT_ButtonKeyPress(button, KEY_ENTER);
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}
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}
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txt_widget_class_t txt_button_class =
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{
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TXT_AlwaysSelectable,
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TXT_ButtonSizeCalc,
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TXT_ButtonDrawer,
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TXT_ButtonKeyPress,
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TXT_ButtonDestructor,
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TXT_ButtonMousePress,
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NULL,
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};
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void TXT_SetButtonLabel(txt_button_t *button, char *label)
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{
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free(button->label);
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button->label = strdup(label);
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}
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txt_button_t *TXT_NewButton(char *label)
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{
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txt_button_t *button;
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button = malloc(sizeof(txt_button_t));
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TXT_InitWidget(button, &txt_button_class);
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button->label = strdup(label);
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return button;
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}
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// Button with a callback set automatically
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txt_button_t *TXT_NewButton2(char *label, TxtWidgetSignalFunc func,
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void *user_data)
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{
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txt_button_t *button;
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button = TXT_NewButton(label);
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TXT_SignalConnect(button, "pressed", func, user_data);
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return button;
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}
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