rockbox/apps/plugins/lib/touchscreen.c
Daniel Stenberg 2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
2008-06-28 18:10:04 +00:00

135 lines
4.3 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Maurus Cuelenaere
*
* 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"
#ifdef HAVE_TOUCHPAD
#include "touchscreen.h"
unsigned int touchscreen_map(struct ts_mappings *map, int x, int y)
{
int i;
for(i=0; i < map->amount; i++)
{
#define _MAP(x) (map->mappings[x])
if(x > _MAP(i).tl_x && x < (_MAP(i).tl_x+_MAP(i).width)
&& y > _MAP(i).tl_y && y < (_MAP(i).tl_y+_MAP(i).height))
return i;
}
return -1;
}
unsigned int touchscreen_map_raster(struct ts_raster *map, int x, int y, struct ts_raster_result *result)
{
int res1_x, res2_x, res1_y, res2_y;
if((x - map->tl_x) < 0 ||
(x - map->tl_x) > map->width)
return -1;
res1_x = (x - map->tl_x)/(map->raster_width);
res2_x = (x - map->tl_x)%(map->raster_width);
if((y - map->tl_y) < 0 ||
(y - map->tl_y) > map->height)
return -1;
res1_y = (y - map->tl_y)/(map->raster_height);
res2_y = (y - map->tl_y)%(map->raster_height);
if(res2_x == 0 || res2_y == 0) /* pen hit a raster boundary */
return -2;
else
{
(*result).x = res1_x;
(*result).y = res1_y;
return 1;
}
}
struct ts_raster_button_result touchscreen_raster_map_button(struct ts_raster_button_mapping *map, int x, int y, int button)
{
struct ts_raster_button_result ret = {0, {0, 0}, {0, 0}};
struct ts_raster_result tmp;
ret.action = TS_ACTION_NONE;
if(touchscreen_map_raster(map->raster, x, y, &tmp) != 1)
return ret;
#define NOT_HANDLED (ret.action == TS_ACTION_NONE)
if((button == BUTTON_REPEAT) && (map->_prev_btn_state != BUTTON_REPEAT) && map->drag_drop_enable)
{
map->_prev_x = tmp.x;
map->_prev_y = tmp.y;
}
if((button == BUTTON_REL) && (map->_prev_btn_state == BUTTON_REPEAT) && map->drag_drop_enable)
{
ret.action = TS_ACTION_DRAG_DROP;
ret.from.x = map->_prev_x;
ret.from.y = map->_prev_y;
ret.to.x = tmp.x;
ret.to.y = tmp.y;
}
if((button == BUTTON_REL) && map->double_click_enable && NOT_HANDLED)
{
if(map->_prev_x == tmp.x && map->_prev_y == tmp.y)
{
ret.action = TS_ACTION_DOUBLE_CLICK;
ret.from.x = ret.to.x = tmp.x;
ret.from.y = ret.to.y = tmp.y;
}
else
{
map->_prev_x = tmp.x;
map->_prev_y = tmp.y;
}
}
if((button & BUTTON_REL || button & BUTTON_REPEAT) && map->two_d_movement_enable && NOT_HANDLED)
{
if((map->two_d_from.x == tmp.x) ^ (map->two_d_from.y == tmp.y))
{
ret.action = TS_ACTION_TWO_D_MOVEMENT;
ret.from.x = map->two_d_from.x;
ret.from.y = map->two_d_from.y;
ret.to.x = map->two_d_from.x + (map->two_d_from.x == tmp.x ? 0 : (tmp.x > map->two_d_from.x ? 1 : -1));
ret.to.y = map->two_d_from.y + (map->two_d_from.y == tmp.y ? 0 : (tmp.y > map->two_d_from.y ? 1 : -1));
}
else
ret.action = TS_ACTION_NONE;
}
if(map->click_enable && (button & BUTTON_REL) && NOT_HANDLED)
{
ret.action = TS_ACTION_CLICK;
ret.from.x = ret.to.x = tmp.x;
ret.from.y = ret.to.y = tmp.y;
}
if(map->move_progress_enable && NOT_HANDLED)
{
ret.action = TS_ACTION_MOVE;
ret.from.x = ret.to.x = tmp.x;
ret.from.y = ret.to.y = tmp.y;
}
map->_prev_btn_state = button;
return ret;
}
#endif /* HAVE_TOUCHPAD */