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Diffstat (limited to 'apps/examples/nx/nx_kbdin.c')
-rw-r--r-- | apps/examples/nx/nx_kbdin.c | 467 |
1 files changed, 467 insertions, 0 deletions
diff --git a/apps/examples/nx/nx_kbdin.c b/apps/examples/nx/nx_kbdin.c new file mode 100644 index 0000000000..3626eded96 --- /dev/null +++ b/apps/examples/nx/nx_kbdin.c @@ -0,0 +1,467 @@ +/**************************************************************************** + * examples/nx/nx_kbdin.c + * + * Copyright (C) 2008, 2010 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 <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <ctype.h> +#include <debug.h> +#include <errno.h> + +#include <nuttx/nx.h> +#include <nuttx/nxtk.h> +#include <nuttx/nxfonts.h> + +#include "nx_internal.h" + +#ifdef CONFIG_NX_KBD + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/* Select renderer -- Some additional logic would be required to support + * pixel depths that are not directly addressable (1,2,4, and 24). + */ + +#if CONFIG_EXAMPLES_NX_BPP == 1 +# define RENDERER nxf_convert_1bpp +#elif CONFIG_EXAMPLES_NX_BPP == 2 +# define RENDERER nxf_convert_2bpp +#elif CONFIG_EXAMPLES_NX_BPP == 4 +# define RENDERER nxf_convert_4bpp +#elif CONFIG_EXAMPLES_NX_BPP == 8 +# define RENDERER nxf_convert_8bpp +#elif CONFIG_EXAMPLES_NX_BPP == 16 +# define RENDERER nxf_convert_16bpp +#elif CONFIG_EXAMPLES_NX_BPP == 24 +# define RENDERER nxf_convert_24bpp +#elif CONFIG_EXAMPLES_NX_BPP == 32 +# define RENDERER nxf_convert_32bpp +#else +# error "Unsupported CONFIG_EXAMPLES_NX_BPP" +#endif + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxeg_fillchar + ****************************************************************************/ + +static void nxeg_fillchar(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect, + FAR const struct nxeg_bitmap_s *bm) +{ + FAR void *src = (FAR void *)bm->glyph->bitmap; + struct nxgl_rect_s intersection; + int ret; + + /* Handle the special case of spaces which have no glyph bitmap */ + + if (src) + { + /* Get the intersection of the redraw region and the characer bitmap */ + + nxgl_rectintersect(&intersection, rect, &bm->bounds); + if (!nxgl_nullrect(&intersection)) + { +#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS + ret = nxtk_bitmapwindow((NXTKWINDOW)hwnd, &intersection, &src, + &bm->bounds.pt1, + (unsigned int)bm->glyph->stride); + if (ret < 0) + { + message("nxeg_fillchar: nxtk_bitmapwindow failed: %d\n", errno); + } +#else + ret = nx_bitmap((NXWINDOW)hwnd, &intersection, &src, + &bm->bounds.pt1, + (unsigned int)bm->glyph->stride); + if (ret < 0) + { + message("nxeg_fillchar: nx_bitmapwindow failed: %d\n", errno); + } +#endif + } + } +} + +/**************************************************************************** + * Name: nxeg_renderglyph + ****************************************************************************/ + +static inline FAR const struct nxeg_glyph_s * +nxeg_renderglyph(FAR struct nxeg_state_s *st, + FAR const struct nx_fontbitmap_s *bm, uint8_t ch) +{ + FAR struct nxeg_glyph_s *glyph = NULL; + FAR nxgl_mxpixel_t *ptr; +#if CONFIG_EXAMPLES_NX_BPP < 8 + nxgl_mxpixel_t pixel; +#endif + int bmsize; + int row; + int col; + int ret; + + /* Make sure that there is room for another glyph */ + + message("nxeg_renderglyph: ch=%02x\n", ch); + if (st->nglyphs < NXTK_MAXKBDCHARS) + { + /* Allocate the glyph */ + + glyph = &st->glyph[st->nglyphs]; + glyph->code = ch; + + /* Get the dimensions of the glyph */ + + glyph->width = bm->metric.width + bm->metric.xoffset; + glyph->height = bm->metric.height + bm->metric.yoffset; + + /* Allocate memory to hold the glyph with its offsets */ + + glyph->stride = (glyph->width * CONFIG_EXAMPLES_NX_BPP + 7) / 8; + bmsize = glyph->stride * glyph->height; + glyph->bitmap = (FAR uint8_t *)malloc(bmsize); + + if (glyph->bitmap) + { + /* Initialize the glyph memory to the background color */ + +#if CONFIG_EXAMPLES_NX_BPP < 8 + pixel = st->color[0]; +# if CONFIG_EXAMPLES_NX_BPP == 1 + /* Pack 1-bit pixels into a 2-bits */ + + pixel &= 0x01; + pixel = (pixel) << 1 |pixel; +# endif +# if CONFIG_EXAMPLES_NX_BPP < 4 + /* Pack 2-bit pixels into a nibble */ + + pixel &= 0x03; + pixel = (pixel) << 2 |pixel; +# endif + + /* Pack 4-bit nibbles into a byte */ + + pixel &= 0x0f; + pixel = (pixel) << 4 | pixel; + + ptr = (FAR nxgl_mxpixel_t *)glyph->bitmap; + for (row = 0; row < glyph->height; row++) + { + for (col = 0; col < glyph->stride; col++) + { + /* Transfer the packed bytes into the buffer */ + + *ptr++ = pixel; + } + } + +#elif CONFIG_EXAMPLES_NX_BPP == 24 +# error "Additional logic is needed here for 24bpp support" + +#else /* CONFIG_EXAMPLES_NX_BPP = {8,16,32} */ + + ptr = (FAR nxgl_mxpixel_t *)glyph->bitmap; + for (row = 0; row < glyph->height; row++) + { + /* Just copy the color value into the glyph memory */ + + for (col = 0; col < glyph->width; col++) + { + *ptr++ = st->color[0]; + } + } +#endif + + /* Then render the glyph into the allocated memory */ + + ret = RENDERER((FAR nxgl_mxpixel_t*)glyph->bitmap, + glyph->height, glyph->width, glyph->stride, + bm, CONFIG_EXAMPLES_NX_FONTCOLOR); + if (ret < 0) + { + /* Actually, the RENDERER never returns a failure */ + + message("nxeg_renderglyph: RENDERER failed\n"); + free(glyph->bitmap); + glyph->bitmap = NULL; + glyph = NULL; + } + else + { + /* Make it permanent */ + + st->nglyphs++; + } + } + } + + return glyph; +} + +/**************************************************************************** + * Name: nxeg_addspace + ****************************************************************************/ + +static inline FAR const struct nxeg_glyph_s * +nxeg_addspace(FAR struct nxeg_state_s *st, uint8_t ch) +{ + FAR struct nxeg_glyph_s *glyph = NULL; + + /* Make sure that there is room for another glyph */ + + if (st->nglyphs < NXTK_MAXKBDCHARS) + { + /* Allocate the NULL glyph */ + + glyph = &st->glyph[st->nglyphs]; + memset(glyph, 0, sizeof(struct nxeg_glyph_s)); + + glyph->code = ' '; + glyph->width = st->spwidth; + + st->nglyphs++; + } + return glyph; +} + +/**************************************************************************** + * Name: nxeg_findglyph + ****************************************************************************/ + +static FAR const struct nxeg_glyph_s * +nxeg_findglyph(FAR struct nxeg_state_s *st, uint8_t ch) +{ + int i; + + /* First, try to find the glyph in the cache of pre-rendered glyphs */ + + for (i = 0; i < st->nglyphs; i++) + { + if (st->glyph[i].code == ch) + { + return &st->glyph[i]; + } + } + return NULL; +} + +/**************************************************************************** + * Name: nxeg_getglyph + ****************************************************************************/ + +static FAR const struct nxeg_glyph_s * +nxeg_getglyph(FAR struct nxeg_state_s *st, uint8_t ch) +{ + FAR const struct nxeg_glyph_s *glyph; + FAR const struct nx_fontbitmap_s *bm; + + /* First, try to find the glyph in the cache of pre-rendered glyphs */ + + glyph = nxeg_findglyph(st, ch); + if (!glyph) + { + /* No, it is not cached... Does the code map to a glyph? */ + + bm = nxf_getbitmap(ch); + if (!bm) + { + /* No, there is no glyph for this code. Use space */ + + glyph = nxeg_findglyph(st, ' '); + if (!glyph) + { + /* There isn't fake glyph for ' ' yet... create one */ + + glyph = nxeg_addspace(st, ' '); + } + } + else + { + glyph = nxeg_renderglyph(st, bm, ch); + } + } + return glyph; +} + +/**************************************************************************** + * Name: nxeg_addchar + ****************************************************************************/ + +static FAR const struct nxeg_bitmap_s * +nxeg_addchar(FAR struct nxeg_state_s *st, uint8_t ch) +{ + FAR struct nxeg_bitmap_s *bm = NULL; + FAR struct nxeg_bitmap_s *bmleft; + nxgl_coord_t leftx; + + /* Is there space for another character on the display? */ + + if (st->nchars < NXTK_MAXKBDCHARS) + { + /* Yes, setup the bitmap */ + + bm = &st->bm[st->nchars]; + + /* Find the matching glyph */ + + bm->glyph = nxeg_getglyph(st, ch); + if (!bm->glyph) + { + return NULL; + } + + /* Set up the bounds for the bitmap */ + + if (st->nchars <= 0) + { + /* The first character is one space from the left */ + + leftx = st->spwidth; + } + else + { + /* Otherwise, it is to the left of the preceding char */ + + bmleft = &st->bm[st->nchars-1]; + leftx = bmleft->bounds.pt2.x + 1; + } + + bm->bounds.pt1.x = leftx; + bm->bounds.pt1.y = 2; + bm->bounds.pt2.x = leftx + bm->glyph->width - 1; + bm->bounds.pt2.y = 2 + bm->glyph->height - 1; + + st->nchars++; + } + return bm; +} + +/**************************************************************************** + * Name: nxeg_addchars + ****************************************************************************/ + +static inline void nxeg_addchars(NXWINDOW hwnd, FAR struct nxeg_state_s *st, + uint8_t nch, FAR const uint8_t *ch) +{ + FAR const struct nxeg_bitmap_s *bm; + + while (nch--) + { + bm = nxeg_addchar(st, *ch++); + if (bm) + { + nxeg_fillchar(hwnd, &bm->bounds, bm); + } + } +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxeg_kbdin + ****************************************************************************/ + +void nxeg_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch, + FAR void *arg) +{ + FAR struct nxeg_state_s *st = (FAR struct nxeg_state_s *)arg; + message("nxeg_kbdin%d: hwnd=%p nch=%d\n", st->wnum, hwnd, nch); + nxeg_addchars(hwnd, st, nch, ch); +} + +/**************************************************************************** + * Name: nxeg_tbkbdin + ****************************************************************************/ + +#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS +void nxeg_tbkbdin(NXWINDOW hwnd, uint8_t nch, const uint8_t *ch, FAR void *arg) +{ + FAR struct nxeg_state_s *st = (FAR struct nxeg_state_s *)arg; + message("nxeg_tbkbdin: ERROR -- toolbar should not received keyboard input\n"); + message("nxeg_tbkbdin%d: hwnd=%p nch=%d\n", st->wnum, hwnd, nch); +} +#endif + +/**************************************************************************** + * Name: nxeg_tbkbdin + ****************************************************************************/ + +void nxeg_filltext(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect, + FAR struct nxeg_state_s *st) +{ + int i; + + /* Fill each character on the display (Only the characters within rect + * will actually be redrawn). + */ + + for (i = 0; i < st->nchars; i++) + { + nxeg_fillchar(hwnd, rect, &st->bm[i]); + } +} + +#endif /* CONFIG_NX_KBD */ |