rockbox/apps/gui/yesno.c
Thomas Martitz 15775c8bad fix erroneous button read in yesno screen and missed buttons in action.c.
If two yesno screens directly follow each other the button release of the
first one was incorrectly accepted in the second one. The fix exposed another
problem in action.c if action_wait_for_release() is called when no button is
actually pressed. The next press was silently eaten.

Change-Id: Iaa5f246f7ea1fd775606620a989cdaec74a9305e
2012-07-18 10:28:08 +02:00

253 lines
7.6 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Kevin Ferrare
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "yesno.h"
#include "system.h"
#include "kernel.h"
#include "misc.h"
#include "lang.h"
#include "action.h"
#include "talk.h"
#include "settings.h"
#include "viewport.h"
struct gui_yesno
{
const struct text_message * main_message;
const struct text_message * result_message[2];
struct viewport *vp;
struct screen * display;
};
static void talk_text_message(const struct text_message * message, bool enqueue)
{
int line;
if(message)
{
for(line=0; line<message->nb_lines; line++)
{
long id = P2ID((unsigned char *)message->message_lines[line]);
if(id>=0)
{
talk_id(id, enqueue);
enqueue = true;
}
}
}
}
static int put_message(struct screen *display,
const struct text_message * message,
int start, int max_y)
{
int i;
for(i=0; i<message->nb_lines && i+start<max_y; i++)
{
display->puts_scroll(0, i+start,
P2STR((unsigned char *)message->message_lines[i]));
}
return i;
}
/*
* Draws the yesno
* - yn : the yesno structure
*/
static void gui_yesno_draw(struct gui_yesno * yn)
{
struct screen * display=yn->display;
struct viewport *vp = yn->vp;
int nb_lines, vp_lines, line_shift=0;
display->set_viewport(vp);
display->clear_viewport();
nb_lines = yn->main_message->nb_lines;
vp_lines = viewport_get_nb_lines(vp);
if(nb_lines+3< vp_lines)
line_shift=1;
line_shift += put_message(display, yn->main_message,
line_shift, vp_lines);
#ifdef HAVE_TOUCHSCREEN
if (display->screen_type == SCREEN_MAIN)
{
int w,h;
int rect_w = vp->width/2, rect_h = vp->height/2;
int old_pattern = vp->fg_pattern;
vp->fg_pattern = LCD_RGBPACK(0,255,0);
display->drawrect(0, rect_h, rect_w, rect_h);
display->getstringsize(str(LANG_SET_BOOL_YES), &w, &h);
display->putsxy((rect_w-w)/2, rect_h+(rect_h-h)/2, str(LANG_SET_BOOL_YES));
vp->fg_pattern = LCD_RGBPACK(255,0,0);
display->drawrect(rect_w, rect_h, rect_w, rect_h);
display->getstringsize(str(LANG_SET_BOOL_NO), &w, &h);
display->putsxy(rect_w + (rect_w-w)/2, rect_h+(rect_h-h)/2, str(LANG_SET_BOOL_NO));
vp->fg_pattern = old_pattern;
}
#else
/* Space remaining for yes / no text ? */
if(line_shift+2 <= vp_lines)
{
if(line_shift+3 <= vp_lines)
line_shift++;
display->puts(0, line_shift, str(LANG_CONFIRM_WITH_BUTTON));
#ifdef HAVE_LCD_BITMAP
display->puts(0, line_shift+1, str(LANG_CANCEL_WITH_ANY));
#endif
}
#endif
display->update_viewport();
display->set_viewport(NULL);
}
/*
* Draws the yesno result
* - yn : the yesno structure
* - result : the result tha must be displayed :
* YESNO_NO if no
* YESNO_YES if yes
*/
static bool gui_yesno_draw_result(struct gui_yesno * yn, enum yesno_res result)
{
const struct text_message * message=yn->result_message[result];
struct viewport *vp = yn->vp;
struct screen * display=yn->display;
if(message==NULL)
return false;
display->set_viewport(vp);
display->clear_viewport();
put_message(yn->display, message, 0, viewport_get_nb_lines(vp));
display->update_viewport();
display->set_viewport(NULL);
return(true);
}
enum yesno_res gui_syncyesno_run(const struct text_message * main_message,
const struct text_message * yes_message,
const struct text_message * no_message)
{
int button;
int result=-1;
bool result_displayed;
struct gui_yesno yn[NB_SCREENS];
struct viewport vp[NB_SCREENS];
long talked_tick = 0;
FOR_NB_SCREENS(i)
{
yn[i].main_message=main_message;
yn[i].result_message[YESNO_YES]=yes_message;
yn[i].result_message[YESNO_NO]=no_message;
yn[i].display=&screens[i];
yn[i].vp = &vp[i];
#ifdef HAVE_LCD_CHARCELLS
/* Quick fix. Viewports should really be enabled proper for charcell */
viewport_set_defaults(yn[i].vp, i);
#else
viewportmanager_theme_enable(i, true, yn[i].vp);
#endif
screens[i].stop_scroll();
gui_yesno_draw(&(yn[i]));
}
/* make sure to eat any extranous keypresses */
action_wait_for_release();
while (result==-1)
{
/* Repeat the question every 5secs (more or less) */
if (global_settings.talk_menu
&& (talked_tick==0 || TIME_AFTER(current_tick, talked_tick+HZ*5)))
{
talked_tick = current_tick;
talk_text_message(main_message, false);
}
button = get_action(CONTEXT_YESNOSCREEN, HZ*5);
switch (button)
{
#ifdef HAVE_TOUCHSCREEN
case ACTION_TOUCHSCREEN:
{
short int x, y;
if (action_get_touchscreen_press_in_vp(&x, &y, yn[0].vp) == BUTTON_TOUCHSCREEN)
{
if (y > yn[0].vp->height/2)
{
if (x <= yn[0].vp->width/2)
result = YESNO_YES;
else
result = YESNO_NO;
}
}
}
break;
#endif
case ACTION_YESNO_ACCEPT:
result=YESNO_YES;
break;
case ACTION_NONE:
case ACTION_UNKNOWN:
case SYS_CHARGER_DISCONNECTED:
case SYS_BATTERY_UPDATE:
/* ignore some SYS events that can happen */
continue;
default:
if(default_event_handler(button) == SYS_USB_CONNECTED)
return(YESNO_USB);
result = YESNO_NO;
}
}
FOR_NB_SCREENS(i)
result_displayed=gui_yesno_draw_result(&(yn[i]), result);
if (global_settings.talk_menu)
{
talk_text_message((result == YESNO_YES) ? yes_message
: no_message, false);
talk_force_enqueue_next();
}
if(result_displayed)
sleep(HZ);
FOR_NB_SCREENS(i)
{
screens[i].scroll_stop(yn[i].vp);
viewportmanager_theme_undo(i, true);
}
return(result);
}
/* Function to manipulate all yesno dialogues.
This function needs the output text as an argument. */
bool yesno_pop(const char* text)
{
const char *lines[]={text};
const struct text_message message={lines, 1};
bool ret = (gui_syncyesno_run(&message,NULL,NULL)== YESNO_YES);
FOR_NB_SCREENS(i)
screens[i].clear_viewport();
return ret;
}