840c4fb49f
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3911 42af7a65-404d-4744-a932-0658087f49c3
336 lines
11 KiB
C
336 lines
11 KiB
C
/****************************************************************************
|
|
* examples/nxlines/nxlines_bkgd.c
|
|
*
|
|
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <debug.h>
|
|
#include <fixedmath.h>
|
|
|
|
#include <nuttx/nx/nx.h>
|
|
#include <nuttx/nx/nxglib.h>
|
|
|
|
#include "nxlines.h"
|
|
|
|
/****************************************************************************
|
|
* Definitions
|
|
****************************************************************************/
|
|
|
|
#ifndef MIN
|
|
# define MIN(a,b) (a < b ? a : b)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Private Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
static void nxlines_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
|
|
bool morem, FAR void *arg);
|
|
static void nxlines_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
|
|
FAR const struct nxgl_point_s *pos,
|
|
FAR const struct nxgl_rect_s *bounds,
|
|
FAR void *arg);
|
|
#ifdef CONFIG_NX_MOUSE
|
|
static void nxlines_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
|
|
uint8_t buttons, FAR void *arg);
|
|
#endif
|
|
|
|
#ifdef CONFIG_NX_KBD
|
|
static void nxlines_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
|
|
FAR void *arg);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/* Background window call table */
|
|
|
|
const struct nx_callback_s g_bgcb =
|
|
{
|
|
nxlines_redraw, /* redraw */
|
|
nxlines_position /* position */
|
|
#ifdef CONFIG_NX_MOUSE
|
|
, nxlines_mousein /* mousein */
|
|
#endif
|
|
#ifdef CONFIG_NX_KBD
|
|
, nxlines_kbdin /* my kbdin */
|
|
#endif
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxlines_redraw
|
|
****************************************************************************/
|
|
|
|
static void nxlines_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
|
|
bool more, FAR void *arg)
|
|
{
|
|
gvdbg("hwnd=%p rect={(%d,%d),(%d,%d)} more=%s\n",
|
|
hwnd, rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y,
|
|
more ? "true" : "false");
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: nxlines_position
|
|
****************************************************************************/
|
|
|
|
static void nxlines_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
|
|
FAR const struct nxgl_point_s *pos,
|
|
FAR const struct nxgl_rect_s *bounds,
|
|
FAR void *arg)
|
|
{
|
|
/* Report the position */
|
|
|
|
gvdbg("hwnd=%p size=(%d,%d) pos=(%d,%d) bounds={(%d,%d),(%d,%d)}\n",
|
|
hwnd, size->w, size->h, pos->x, pos->y,
|
|
bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y);
|
|
|
|
/* Have we picked off the window bounds yet? */
|
|
|
|
if (!g_nxlines.havepos)
|
|
{
|
|
/* Save the background window handle */
|
|
|
|
g_nxlines.hbkgd = hwnd;
|
|
|
|
/* Save the window limits */
|
|
|
|
g_nxlines.xres = bounds->pt2.x + 1;
|
|
g_nxlines.yres = bounds->pt2.y + 1;
|
|
|
|
g_nxlines.havepos = true;
|
|
sem_post(&g_nxlines.sem);
|
|
gvdbg("Have xres=%d yres=%d\n", g_nxlines.xres, g_nxlines.yres);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: nxlines_mousein
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NX_MOUSE
|
|
static void nxlines_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
|
|
uint8_t buttons, FAR void *arg)
|
|
{
|
|
message("nxlines_mousein: hwnd=%p pos=(%d,%d) button=%02x\n",
|
|
hwnd, pos->x, pos->y, buttons);
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: nxlines_kbdin
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NX_KBD
|
|
static void nxlines_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
|
|
FAR void *arg)
|
|
{
|
|
gvdbg("hwnd=%p nch=%d\n", hwnd, nch);
|
|
|
|
/* In this example, there is no keyboard so a keyboard event is not
|
|
* expected.
|
|
*/
|
|
|
|
message("nxlines_kbdin: Unexpected keyboard callback\n");
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxlines_test
|
|
*
|
|
* Description:
|
|
* Print "Hello, World!" in the center of the display.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void nxlines_test(NXWINDOW hwnd)
|
|
{
|
|
struct nxgl_point_s center;
|
|
struct nxgl_vector_s vector;
|
|
struct nxgl_vector_s previous;
|
|
nxgl_mxpixel_t color[CONFIG_NX_NPLANES];
|
|
nxgl_coord_t maxradius;
|
|
nxgl_coord_t radius;
|
|
nxgl_coord_t halfx;
|
|
nxgl_coord_t halfy;
|
|
b16_t angle;
|
|
int ret;
|
|
|
|
/* Get the maximum radius and center of the circle */
|
|
|
|
maxradius = MIN(g_nxlines.yres, g_nxlines.xres) >> 1;
|
|
center.x = g_nxlines.xres >> 1;
|
|
center.y = g_nxlines.yres >> 1;
|
|
|
|
/* Draw a circular background */
|
|
|
|
radius = maxradius - ((CONFIG_EXAMPLES_NXLINES_BORDERWIDTH+1)/2);
|
|
color[0] = CONFIG_EXAMPLES_NXLINES_CIRCLECOLOR;
|
|
ret = nx_fillcircle((NXWINDOW)hwnd, ¢er, radius, color);
|
|
if (ret < 0)
|
|
{
|
|
message("nxlines_test: nx_fillcircle failed: %d\n", ret);
|
|
}
|
|
|
|
/* Draw the circular border */
|
|
|
|
color[0] = CONFIG_EXAMPLES_NXLINES_BORDERCOLOR;
|
|
ret = nx_drawcircle((NXWINDOW)hwnd, ¢er, radius,
|
|
CONFIG_EXAMPLES_NXLINES_BORDERWIDTH, color);
|
|
if (ret < 0)
|
|
{
|
|
message("nxlines_test: nx_fillcircle failed: %d\n", ret);
|
|
}
|
|
|
|
/* Back off the radius to account for the thickness of border line
|
|
* and with a big fudge factor that will (hopefully) prevent the corners
|
|
* of the lines from overwriting the border. This is overly complicated
|
|
* here because we don't assume anything about the screen resolution or
|
|
* the borderwidth or the line thickness (and there are certainly some
|
|
* smarter ways to do this).
|
|
*/
|
|
|
|
if (maxradius > (CONFIG_EXAMPLES_NXLINES_BORDERWIDTH + 80))
|
|
{
|
|
radius = maxradius - (CONFIG_EXAMPLES_NXLINES_BORDERWIDTH + 40);
|
|
}
|
|
else if (maxradius > (CONFIG_EXAMPLES_NXLINES_BORDERWIDTH + 60))
|
|
{
|
|
radius = maxradius - (CONFIG_EXAMPLES_NXLINES_BORDERWIDTH + 30);
|
|
}
|
|
else if (maxradius > (CONFIG_EXAMPLES_NXLINES_BORDERWIDTH + 40))
|
|
{
|
|
radius = maxradius - (CONFIG_EXAMPLES_NXLINES_BORDERWIDTH + 20);
|
|
}
|
|
else if (maxradius > (CONFIG_EXAMPLES_NXLINES_BORDERWIDTH + 20))
|
|
{
|
|
radius = maxradius - (CONFIG_EXAMPLES_NXLINES_BORDERWIDTH + 10);
|
|
}
|
|
else
|
|
{
|
|
radius = maxradius - CONFIG_EXAMPLES_NXLINES_BORDERWIDTH;
|
|
}
|
|
|
|
/* The loop, showing the line in various orientations */
|
|
|
|
angle = 0;
|
|
previous.pt1.x = center.x;
|
|
previous.pt1.y = center.y;
|
|
previous.pt2.x = center.x;
|
|
previous.pt2.y = center.y;
|
|
|
|
for (;;)
|
|
{
|
|
/* Determine the position of the line on this pass */
|
|
|
|
halfx = b16toi(b16muli(b16sin(angle), radius));
|
|
halfy = b16toi(b16muli(b16cos(angle), radius));
|
|
|
|
vector.pt1.x = center.x + halfx;
|
|
vector.pt1.y = center.y + halfy;
|
|
vector.pt2.x = center.x - halfx;
|
|
vector.pt2.y = center.y - halfy;
|
|
|
|
message("Angle: %08x vector: (%d,%d)->(%d,%d)\n",
|
|
angle, vector.pt1.x, vector.pt1.y, vector.pt2.x, vector.pt2.y);
|
|
|
|
/* Clear the previous line by overwriting it with the circle color */
|
|
|
|
color[0] = CONFIG_EXAMPLES_NXLINES_CIRCLECOLOR;
|
|
ret = nx_drawline((NXWINDOW)hwnd, &previous, CONFIG_EXAMPLES_NXLINES_LINEWIDTH, color);
|
|
if (ret < 0)
|
|
{
|
|
message("nxlines_test: nx_drawline failed clearing: %d\n", ret);
|
|
}
|
|
|
|
/* Draw the new line */
|
|
|
|
color[0] = CONFIG_EXAMPLES_NXLINES_LINECOLOR;
|
|
ret = nx_drawline((NXWINDOW)hwnd, &vector, CONFIG_EXAMPLES_NXLINES_LINEWIDTH, color);
|
|
if (ret < 0)
|
|
{
|
|
message("nxlines_test: nx_drawline failed clearing: %d\n", ret);
|
|
}
|
|
|
|
/* Set up for the next time through the loop then sleep for a bit. */
|
|
|
|
angle += b16PI / 16; /* 32 angular positions in full circle */
|
|
|
|
/* Check if we have gone all the way around */
|
|
|
|
if (angle > (31 * (2 * b16PI) / 32))
|
|
{
|
|
#ifdef CONFIG_EXAMPLES_NXLINES_BUILTIN
|
|
/* If this example was built as an NSH add-on, then exit after we
|
|
* have gone all the way around once.
|
|
*/
|
|
|
|
return;
|
|
#else
|
|
/* Wrap back to zero and continue with the test */
|
|
|
|
angle = 0;
|
|
#endif
|
|
}
|
|
|
|
memcpy(&previous, &vector, sizeof(struct nxgl_vector_s));
|
|
usleep(500*1000);
|
|
}
|
|
}
|