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// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id$
//
// Copyright(C) 1993-1996 Id Software, Inc.
// 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 "txt_gui.h"
#include "txt_separator.h"
#include "txt_window.h"
#define MAXWINDOWS 128
static txt_window_t *all_windows[MAXWINDOWS];
static int num_windows = 0;
static void AddWindow(txt_window_t *win)
{
all_windows[num_windows] = win;
++num_windows;
}
static void RemoveWindow(txt_window_t *win)
{
int from, to;
for (from=0, to=0; from<num_windows; ++from)
{
if (all_windows[from] != win)
{
all_windows[to] = all_windows[from];
++to;
}
}
num_windows = to;
}
txt_window_t *TXT_NewWindow(char *title, int x, int y)
{
txt_window_t *win;
win = malloc(sizeof(txt_window_t));
win->title = strdup(title);
win->x = x;
win->y = y;
win->widgets = NULL;
win->num_widgets = 0;
win->selected = 0;
AddWindow(win);
return win;
}
void TXT_CloseWindow(txt_window_t *window)
{
int i;
// Free all widgets
for (i=0; i<window->num_widgets; ++i)
{
TXT_DestroyWidget(window->widgets[i]);
}
// Free window resources
free(window->widgets);
free(window->title);
free(window);
RemoveWindow(window);
}
static void TXT_WindowSize(txt_window_t *window, int *w, int *h)
{
int max_width;
int i;
int ww;
max_width = 10;
for (i=0; i<window->num_widgets; ++i)
{
ww = TXT_WidgetWidth(window->widgets[i]);
if (ww > max_width)
max_width = ww;
}
*w = max_width;
*h = window->num_widgets;
}
static void DrawWindow(txt_window_t *window)
{
int widgets_w, widgets_h;
int window_w, window_h;
int x, y;
int window_x, window_y;
int i;
TXT_WindowSize(window, &widgets_w, &widgets_h);
// Actual window size after padding
window_w = widgets_w + 2;
window_h = widgets_h + 5;
// Use the x,y position as the centerpoint and find the location to
// draw the window.
window_x = window->x - (window_w / 2);
window_y = window->y - (window_h / 2);
// Draw the window
TXT_DrawWindow(window->title, window_x, window_y, window_w, window_h);
// Draw all widgets
for (i=0; i<window->num_widgets; ++i)
{
TXT_GotoXY(window_x + 1, window_y + 2 + i);
TXT_DrawWidget(window->widgets[i], widgets_w, i == window->selected);
}
// Separator for action area
TXT_DrawSeparator(window_x, window_y + 2 + window->num_widgets, window_w);
}
void TXT_DrawAllWindows(void)
{
int i;
TXT_DrawDesktop("Not Chocolate Doom setup");
for (i=0; i<num_windows; ++i)
{
DrawWindow(all_windows[i]);
}
TXT_UpdateScreen();
}
void TXT_AddWidget(txt_window_t *window, txt_widget_t *widget)
{
if (window->num_widgets == 0)
{
// This is the first widget added.
//
// The first widget in a window should always be a separator.
// If we are not adding a separator now, add one in first.
if (widget->widget_class != &txt_separator_class)
{
txt_separator_t *separator;
separator = TXT_NewSeparator(NULL);
window->widgets = malloc(sizeof(txt_widget_t *));
window->widgets[0] = &separator->widget;
window->num_widgets = 1;
}
}
window->widgets = realloc(window->widgets,
sizeof(txt_widget_t *) * (window->num_widgets + 1));
window->widgets[window->num_widgets] = widget;
++window->num_widgets;
}
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