rockbox/apps/plugins/test_touchscreen.c
Thomas Martitz abdc5935be Introduce plugin_crt0.c that every plugin links.
It handles exit() properly, calling the handler also when the plugin returns
normally (also it makes exit() more standard compliant while at it).
It also holds PLUGIN_HEADER, so that it doesn't need to be in each plugin anymore.

To work better together with callbacks passed to rb->default_event_handler_ex introduce exit_on_usb() which will call the exit handler before showing the usb screen and exit() after it.
In most cases it was passed a callback which was manually called at all other return points. This can now be done via atexit().

In future plugin_crt0.c could also handle clearing bss, initializing iram and more.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27862 a1c6a512-1295-4272-9138-f99709370657
2010-08-23 16:56:49 +00:00

141 lines
4.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 Rob Purchase
*
* 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 "plugin.h"
#if (CONFIG_KEYPAD == COWON_D2_PAD)
#define TOUCHSCREEN_QUIT BUTTON_POWER
#define TOUCHSCREEN_TOGGLE BUTTON_MENU
#elif (CONFIG_KEYPAD == MROBE500_PAD)
#define TOUCHSCREEN_QUIT BUTTON_POWER
#define TOUCHSCREEN_TOGGLE BUTTON_RC_MODE
#elif (CONFIG_KEYPAD == ONDAVX747_PAD)
#define TOUCHSCREEN_QUIT BUTTON_POWER
#define TOUCHSCREEN_TOGGLE BUTTON_MENU
#endif
/* plugin entry point */
enum plugin_status plugin_start(const void* parameter)
{
int button = 0;
enum touchscreen_mode mode = TOUCHSCREEN_BUTTON;
/* standard stuff */
(void)parameter;
rb->touchscreen_set_mode(mode);
/* wait until user closes plugin */
do
{
short x = 0;
short y = 0;
bool draw_rect = false;
button = rb->button_get(true);
if (button & BUTTON_TOPLEFT)
{
draw_rect = true;
x = 0; y = 0;
}
else if (button & BUTTON_TOPMIDDLE)
{
draw_rect = true;
x = LCD_WIDTH/3; y = 0;
}
else if (button & BUTTON_TOPRIGHT)
{
draw_rect = true;
x = 2*(LCD_WIDTH/3); y = 0;
}
else if (button & BUTTON_MIDLEFT)
{
draw_rect = true;
x = 0; y = LCD_HEIGHT/3;
}
else if (button & BUTTON_CENTER)
{
draw_rect = true;
x = LCD_WIDTH/3; y = LCD_HEIGHT/3;
}
else if (button & BUTTON_MIDRIGHT)
{
draw_rect = true;
x = 2*(LCD_WIDTH/3); y = LCD_HEIGHT/3;
}
else if (button & BUTTON_BOTTOMLEFT)
{
draw_rect = true;
x = 0; y = 2*(LCD_HEIGHT/3);
}
else if (button & BUTTON_BOTTOMMIDDLE)
{
draw_rect = true;
x = LCD_WIDTH/3; y = 2*(LCD_HEIGHT/3);
}
else if (button & BUTTON_BOTTOMRIGHT)
{
draw_rect = true;
x = 2*(LCD_WIDTH/3); y = 2*(LCD_HEIGHT/3);
}
if (button & TOUCHSCREEN_TOGGLE && (button & BUTTON_REL))
{
mode = (mode == TOUCHSCREEN_POINT) ? TOUCHSCREEN_BUTTON : TOUCHSCREEN_POINT;
rb->touchscreen_set_mode(mode);
}
if (button & BUTTON_REL) draw_rect = false;
rb->lcd_clear_display();
if (draw_rect)
{
rb->lcd_set_foreground(LCD_RGBPACK(0xc0, 0, 0));
rb->lcd_fillrect(x, y, LCD_WIDTH/3, LCD_HEIGHT/3);
}
if (draw_rect || button & BUTTON_TOUCHSCREEN)
{
intptr_t button_data = rb->button_get_data();
x = button_data >> 16;
y = button_data & 0xffff;
rb->lcd_set_foreground(LCD_RGBPACK(0, 0, 0xc0));
rb->lcd_fillrect(x-7, y-7, 14, 14);
/* in stylus mode, show REL position in black */
if (mode == TOUCHSCREEN_POINT && (button & BUTTON_REL))
rb->lcd_set_foreground(LCD_BLACK);
else
rb->lcd_set_foreground(LCD_WHITE);
rb->lcd_hline(x-5, x+5, y);
rb->lcd_vline(x, y-5, y+5);
}
rb->lcd_update();
} while (button != TOUCHSCREEN_QUIT);
return PLUGIN_OK;
}