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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_desktop.h"
#include "txt_gui.h"
#include "txt_main.h"
#include "txt_separator.h"
#include "txt_window.h"
txt_window_t *TXT_NewWindow(char *title)
{
txt_window_t *win;
win = malloc(sizeof(txt_window_t));
win->title = strdup(title);
win->x = TXT_SCREEN_W / 2;
win->y = TXT_SCREEN_H / 2;
win->horiz_align = TXT_HORIZ_CENTER;
win->vert_align = TXT_VERT_CENTER;
win->widgets = NULL;
win->num_widgets = 0;
win->selected = 0;
TXT_AddDesktopWindow(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);
TXT_RemoveDesktopWindow(window);
}
static void CalcWindowSize(txt_window_t *window, int *w, int *h)
{
txt_widget_t *widget;
int max_width;
int height;
int i;
int ww;
max_width = 10;
height = 0;
for (i=0; i<window->num_widgets; ++i)
{
ww = TXT_WidgetWidth(window->widgets[i]);
if (ww > max_width)
max_width = ww;
if (window->widgets[i]->visible)
{
height += 1;
}
}
*w = max_width;
*h = height;
}
static void CalcWindowPosition(txt_window_t *window,
int *x, int *y,
int w, int h)
{
switch (window->horiz_align)
{
case TXT_HORIZ_LEFT:
*x = window->x;
break;
case TXT_HORIZ_CENTER:
*x = window->x - (w / 2);
break;
case TXT_HORIZ_RIGHT:
*x = window->x - (w - 1);
break;
}
switch (window->vert_align)
{
case TXT_VERT_TOP:
*y = window->y;
break;
case TXT_VERT_CENTER:
*y = window->y - (h / 2);
break;
case TXT_VERT_BOTTOM:
*y = window->y - (h - 1);
break;
}
}
void TXT_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;
CalcWindowSize(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.
CalcWindowPosition(window, &window_x, &window_y, window_w, window_h);
// Draw the window
TXT_DrawWindowFrame(window->title, window_x, window_y, window_w, window_h);
// Draw all widgets
x = window_x + 1;
y = window_y + 2;
for (i=0; i<window->num_widgets; ++i)
{
TXT_GotoXY(x, y);
TXT_DrawWidget(window->widgets[i], widgets_w, i == window->selected);
if (window->widgets[i]->visible)
{
y += 1;
}
}
// Separator for action area
TXT_DrawSeparator(window_x, y, window_w);
}
void TXT_AddWidget(txt_window_t *window, void *uncast_widget)
{
txt_widget_t *widget;
widget = (txt_widget_t *) uncast_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;
}
void TXT_SetWindowPosition(txt_window_t *window,
txt_horiz_align_t horiz_align,
txt_vert_align_t vert_align,
int x, int y)
{
window->vert_align = vert_align;
window->horiz_align = horiz_align;
window->x = x;
window->y = y;
}
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