ref: bdd05b900149d799f2b2562f73432d125c86c3f7
dir: /textscreen/txt_window.c/
// 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 "doomkeys.h"
#include "txt_desktop.h"
#include "txt_gui.h"
#include "txt_main.h"
#include "txt_separator.h"
#include "txt_window.h"
void TXT_SetWindowAction(txt_window_t *window,
txt_horiz_align_t position,
txt_window_action_t *action)
{
if (window->actions[position] != NULL)
{
TXT_DestroyWidget(window->actions[position]);
}
window->actions[position] = action;
}
static void DefaultCancelAction(TXT_UNCAST_ARG(widget), TXT_UNCAST_ARG(window))
{
TXT_CAST_ARG(txt_window_t, window);
TXT_CloseWindow(window);
}
txt_window_t *TXT_NewWindow(char *title)
{
int i;
txt_window_action_t *cancel_action;
txt_window_action_t *accept_action;
txt_window_t *win;
win = malloc(sizeof(txt_window_t));
TXT_InitTable(&win->table, 1);
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;
TXT_AddWidget(win, TXT_NewSeparator(NULL));
for (i=0; i<3; ++i)
win->actions[i] = NULL;
TXT_AddDesktopWindow(win);
// Default actions
cancel_action = TXT_NewWindowAction(KEY_ESCAPE, "Abort");
TXT_SetWindowAction(win, TXT_HORIZ_LEFT, cancel_action);
TXT_SignalConnect(cancel_action, "pressed", DefaultCancelAction, win);
accept_action = TXT_NewWindowAction(KEY_ENTER, "Accept");
TXT_SetWindowAction(win, TXT_HORIZ_RIGHT, accept_action);
return win;
}
void TXT_CloseWindow(txt_window_t *window)
{
int i;
free(window->title);
// Destroy all actions
for (i=0; i<3; ++i)
{
if (window->actions[i] != NULL)
{
TXT_DestroyWidget(window->actions[i]);
}
}
// Destroy table and window
TXT_DestroyWidget(window);
TXT_RemoveDesktopWindow(window);
}
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;
}
}
static void DrawActionArea(txt_window_t *window,
int window_x, int window_y,
int window_w, int window_h)
{
int ww, wh;
// Draw the left action
if (window->actions[TXT_HORIZ_LEFT] != NULL)
{
TXT_GotoXY(window_x + 2, window_y + window_h - 2);
TXT_DrawWidget(window->actions[TXT_HORIZ_LEFT], 0, 0);
}
// Draw the center action
if (window->actions[TXT_HORIZ_CENTER] != NULL)
{
TXT_CalcWidgetSize(window->actions[TXT_HORIZ_CENTER], &ww, &wh);
TXT_GotoXY(window_x + (window_w - ww - 2) / 2, window_y + window_h - 2);
TXT_DrawWidget(window->actions[TXT_HORIZ_CENTER], 0, 0);
}
// Draw the right action
if (window->actions[TXT_HORIZ_RIGHT] != NULL)
{
TXT_CalcWidgetSize(window->actions[TXT_HORIZ_RIGHT], &ww, &wh);
TXT_GotoXY(window_x + window_w - 2 - ww, window_y + window_h - 2);
TXT_DrawWidget(window->actions[TXT_HORIZ_RIGHT], 0, 0);
}
}
static int CalcActionAreaWidth(txt_window_t *window, int *widgets_w)
{
int ww, wh;
int w;
int i;
w = 1;
// Calculate the width of all the action widgets and use this
// to create an overall min. width of the action area
for (i=0; i<3; ++i)
{
if (window->actions[i] != NULL)
{
TXT_CalcWidgetSize(window->actions[i], &ww, &wh);
w += ww + 1;
}
}
// If this is larger than the window size, adjust the window to fit.
if (w > *widgets_w)
*widgets_w = w;
}
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;
int ww, wh;
TXT_CalcWidgetSize(window, &widgets_w, &widgets_h);
CalcActionAreaWidth(window, &widgets_w);
// 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
TXT_GotoXY(window_x + 1, window_y + 2);
TXT_DrawWidget(window, widgets_w, 1);
// Separator for action area
TXT_DrawSeparator(window_x, window_y + 2 + widgets_h, window_w);
// Action area at the window bottom
DrawActionArea(window, window_x, window_y, window_w, window_h);
}
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;
}
void TXT_WindowKeyPress(txt_window_t *window, int c)
{
int i;
// Send to the currently selected widget first
if (TXT_WidgetKeyPress(window, c))
{
return;
}
// Try all of the action buttons
for (i=0; i<3; ++i)
{
if (window->actions[i] != NULL
&& TXT_WidgetKeyPress(window->actions[i], c))
{
return;
}
}
}