rockbox/apps/plugins/lib/touchscreen.c
Maurus Cuelenaere e1753de41a 1) Implement generic touchscreen detection library for the plugins
2) Adapt minesweeper, pegbox & calculator to it
3) Simplify gui/bitmap/list.c


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17695 a1c6a512-1295-4272-9138-f99709370657
2008-06-06 18:29:46 +00:00

133 lines
4.2 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Maurus Cuelenaere
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* 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 */