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//
// 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_button.h"
#include "txt_gui.h"
#include "txt_io.h"
#include "txt_main.h"
#include "txt_utf8.h"
#include "txt_window.h"
static void TXT_ButtonSizeCalc(TXT_UNCAST_ARG(button))
{
TXT_CAST_ARG(txt_button_t, button);
button->widget.w = TXT_UTF8_Strlen(button->label);
button->widget.h = 1;
}
static void TXT_ButtonDrawer(TXT_UNCAST_ARG(button))
{
TXT_CAST_ARG(txt_button_t, button);
int i;
int w;
w = button->widget.w;
TXT_SetWidgetBG(button);
TXT_DrawString(button->label);
for (i = TXT_UTF8_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_AlwaysSelectable,
TXT_ButtonSizeCalc,
TXT_ButtonDrawer,
TXT_ButtonKeyPress,
TXT_ButtonDestructor,
TXT_ButtonMousePress,
NULL,
};
void TXT_SetButtonLabel(txt_button_t *button, const char *label)
{
free(button->label);
button->label = strdup(label);
}
txt_button_t *TXT_NewButton(const 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(const char *label, TxtWidgetSignalFunc func,
void *user_data)
{
txt_button_t *button;
button = TXT_NewButton(label);
TXT_SignalConnect(button, "pressed", func, user_data);
return button;
}
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