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// 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 <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "doomkeys.h"
#include "txt_spinctrl.h"
#include "txt_gui.h"
#include "txt_io.h"
#include "txt_main.h"
#include "txt_window.h"
// Number of characters needed to represent a character
static int IntWidth(int val)
{
if (val < 0)
{
return ((int) log(-val)) + 2;
}
else
{
return ((int) log(val)) + 1;
}
}
static void TXT_SpinControlSizeCalc(TXT_UNCAST_ARG(spincontrol))
{
TXT_CAST_ARG(txt_spincontrol_t, spincontrol);
int minw, maxw;
int w;
minw = IntWidth(spincontrol->min);
maxw = IntWidth(spincontrol->max);
if (minw > maxw)
{
w = minw;
}
else
{
w = maxw;
}
spincontrol->widget.w = w + 4;
spincontrol->widget.h = 1;
}
static void TXT_SpinControlDrawer(TXT_UNCAST_ARG(spincontrol), int selected)
{
TXT_CAST_ARG(txt_spincontrol_t, spincontrol);
char buf[20];
int i;
TXT_FGColor(TXT_COLOR_BRIGHT_WHITE);
TXT_BGColor(TXT_COLOR_BLUE, 0);
TXT_DrawString("< ");
// Choose background color
if (selected)
{
TXT_BGColor(TXT_COLOR_GREY, 0);
}
else
{
TXT_BGColor(TXT_COLOR_BLUE, 0);
}
sprintf(buf, "%i", *spincontrol->value);
for (i=strlen(buf); i<spincontrol->widget.w - 4; ++i)
{
TXT_DrawString(" ");
}
TXT_DrawString(buf);
TXT_BGColor(TXT_COLOR_BLUE, 0);
TXT_DrawString(" >");
}
static void TXT_SpinControlDestructor(TXT_UNCAST_ARG(spincontrol))
{
}
static int TXT_SpinControlKeyPress(TXT_UNCAST_ARG(spincontrol), int key)
{
TXT_CAST_ARG(txt_spincontrol_t, spincontrol);
if (key == KEY_LEFTARROW)
{
--*spincontrol->value;
if (*spincontrol->value < spincontrol->min)
{
*spincontrol->value = spincontrol->min;
}
return 1;
}
if (key == KEY_RIGHTARROW)
{
++*spincontrol->value;
if (*spincontrol->value > spincontrol->max)
{
*spincontrol->value = spincontrol->max;
}
return 1;
}
return 0;
}
static void TXT_SpinControlMousePress(TXT_UNCAST_ARG(spincontrol),
int x, int y, int b)
{
TXT_CAST_ARG(txt_spincontrol_t, spincontrol);
int rel_x;
rel_x = x - spincontrol->widget.x;
if (rel_x < 2)
{
TXT_SpinControlKeyPress(spincontrol, KEY_LEFTARROW);
}
else if (rel_x >= spincontrol->widget.w - 2)
{
TXT_SpinControlKeyPress(spincontrol, KEY_RIGHTARROW);
}
}
txt_widget_class_t txt_spincontrol_class =
{
TXT_SpinControlSizeCalc,
TXT_SpinControlDrawer,
TXT_SpinControlKeyPress,
TXT_SpinControlDestructor,
TXT_SpinControlMousePress,
0,
};
txt_spincontrol_t *TXT_NewSpinControl(int *value, int min, int max)
{
txt_spincontrol_t *spincontrol;
spincontrol = malloc(sizeof(txt_spincontrol_t));
TXT_InitWidget(spincontrol, &txt_spincontrol_class);
spincontrol->value = value;
spincontrol->min = min;
spincontrol->max = max;
return spincontrol;
}
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