diff options
Diffstat (limited to 'framebuffer/fb_cursor.c')
-rw-r--r-- | framebuffer/fb_cursor.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/framebuffer/fb_cursor.c b/framebuffer/fb_cursor.c new file mode 100644 index 000000000..5bd1b1a80 --- /dev/null +++ b/framebuffer/fb_cursor.c @@ -0,0 +1,241 @@ +/* + * Copyright 2008 Vincent Sanders <vince@simtec.co.uk> + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf 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; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <sys/types.h> +#include <stdint.h> + +#include <sys/types.h> +#include <stdint.h> +#include <string.h> +#include <limits.h> + +#include "utils/log.h" +#include "utils/utf8.h" +#include "desktop/plotters.h" +#include "desktop/browser.h" +#include "image/bitmap.h" + +#include "framebuffer/fb_gui.h" +#include "framebuffer/fb_plotters.h" +#include "framebuffer/fb_bitmap.h" +#include "framebuffer/fb_cursor.h" + +struct fb_cursor_s { + int x; + int y; + int width; /**< width */ + int height; /**< height */ + + bool plotted; + + struct bitmap *bitmap; /* pointer bitmap */ + + uint8_t *savedata; /* save under area */ +}; + +static const struct { + unsigned int width; + unsigned int height; + unsigned int bytes_per_pixel; /* 3:RGB, 4:RGBA */ + unsigned char pixel_data[11 * 15 * 4 + 1]; +} pointer_image = { + 11, 15, 4, + "\0\0\0'\0\0\0""8\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" + "\0\0\0\0\0\0\0\0\0\0\0`\230\230\230\275\3\3\3D\0\0\0\1\0\0\0\4\0\0\0\1\0" + "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0`\377\377\377\277\230\230\230" + "\275\2\2\2N\0\0\0\37\0\0\0\23\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" + "\0`\377\377\377\277\377\377\377\277\224\224\224\302\2\2\2`\0\0\0$\0\0\0\24" + "\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0`\377\377\377\277\377\377\377\277\370" + "\370\370\304\220\220\220\307\2\2\2`\0\0\0$\0\0\0\24\0\0\0\2\0\0\0\0\0\0\0" + "\0\0\0\0`\377\377\377\277\377\377\377\277\370\370\370\304\362\362\362\311" + "\220\220\220\307\2\2\2`\0\0\0$\0\0\0\24\0\0\0\2\0\0\0\0\0\0\0`\377\377\377" + "\277\377\377\377\277\370\370\370\304\362\362\362\311\361\361\361\311]]]\307" + "\0\0\0;\0\0\0$\0\0\0\24\0\0\0\2\0\0\0`\377\377\377\277\377\377\377\277\370" + "\370\370\304\304\304\304\311222\245\0\0\0Z\0\0\0'\0\0\0&\0\0\0$\0\0\0\24" + "\0\0\0`\334\334\334\277sss\273\277\277\277\304\340\340\340\311\16\16\16~" + "\0\0\0&\0\0\0&\0\0\0&\0\0\0&\0\0\0#\0\0\0-\5\5\5T\0\0\0\21]]]\261\362\362" + "\362\311ccc\276\0\0\0,\0\0\0&\0\0\0&\0\0\0#\0\0\0\26\0\0\0\0\0\0\0\0\0\0" + "\0\0\11\11\11h\333\333\333\311\306\306\306\311\0\0\0g\0\0\0&\0\0\0&\0\0\0" + "\31\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\36ooo\304\212\212\212\305\15\15" + "\15q\0\0\0&\0\0\0&\0\0\0!\0\0\0\6\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0""8" + "\0\0\0\35\0\0\0\25\0\0\0&\0\0\0&\0\0\0%\0\0\0\21\0\0\0\0\0\0\0\0\0\0\0\0" + "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\10\0\0\0#\0\0\0&\0\0\0%\0\0\0\24\0\0\0\0\0" + "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\24\0\0\0\34\0\0\0\22" + "\0\0\0\4", +}; + +static void fb_cursor_save(framebuffer_t *fb) +{ + uint8_t *savebuf; + int savelen; + uint8_t *pvid; + int yloop; + int height = fb->cursor->height; + + if ((fb->height - fb->cursor->y) < height) + height = fb->height - fb->cursor->y; + + if (height == 0) { + if (fb->cursor->savedata != NULL) + free(fb->cursor->savedata); + fb->cursor->savedata = NULL; + return; + } + + savelen = ((fb->cursor->width * fb->bpp) / 8); + savebuf = malloc(savelen * height); + if (savebuf == NULL) + return; + + if (fb->cursor->savedata != NULL) + free(fb->cursor->savedata); + + fb->cursor->savedata = savebuf; + + pvid = fb->ptr + + (fb->cursor->y * fb->linelen) + + ((fb->cursor->x * fb->bpp) / 8); + + for (yloop=0; yloop < height; yloop++) { + memcpy(savebuf, pvid, savelen); + savebuf += savelen; + pvid += fb->linelen; + } +} + +static void fb_cursor_clear(framebuffer_t *fb) +{ + uint8_t *savebuf; + int savelen; + uint8_t *pvid; + int yloop; + int height = fb->cursor->height; + + if ((fb->height - fb->cursor->y) < height) + height = fb->height - fb->cursor->y ; + + if (height == 0) + return; + + if (fb->cursor->plotted == false) + return; + fb->cursor->plotted = false; + + savebuf = fb->cursor->savedata; + if (savebuf == NULL) + return; + + savelen = ((fb->cursor->width * fb->bpp) / 8); + + pvid = fb->ptr + + (fb->cursor->y * fb->linelen) + + ((fb->cursor->x * fb->bpp) / 8); + + for (yloop=0; yloop < height; yloop++) { + memcpy(pvid, savebuf, savelen); + savebuf += savelen; + pvid += fb->linelen; + } + +} + +void +fb_cursor_move(framebuffer_t *fb, int x, int y) +{ + fb_cursor_clear(fb); + + fb->cursor->x += x; + fb->cursor->y += y; + if (fb->cursor->x < 0) + fb->cursor->x = 0; + if (fb->cursor->y < 0) + fb->cursor->y = 0; + if (fb->cursor->x > fb->width) + fb->cursor->x = fb->width; + if (fb->cursor->y > fb->height) + fb->cursor->y = fb->height; + +} + +void +fb_cursor_plot(framebuffer_t *fb) +{ + bbox_t saved_plot_ctx; + + if (fb->cursor->plotted) + return; + + saved_plot_ctx = fb_plot_ctx; + + fb_plot_ctx.x0 = 0; + fb_plot_ctx.y0 = 0; + fb_plot_ctx.x1 = fb->width; + fb_plot_ctx.y1 = fb->height; + + fb_cursor_save(fb); + + plot.bitmap(fb->cursor->x, fb->cursor->y, + fb->cursor->width, fb->cursor->height, + fb->cursor->bitmap, 0, NULL); + + fb->cursor->plotted = true; + fb_plot_ctx = saved_plot_ctx; +} + + +fb_cursor_t * +fb_cursor_init(framebuffer_t *fb) +{ + fb_cursor_t *cursor; + cursor = calloc(1, sizeof(fb_cursor_t)); + + cursor->x = fb->width / 2; + cursor->y = fb->height / 2; + + cursor->width = pointer_image.width; + cursor->height = pointer_image.height; + cursor->bitmap = bitmap_create(cursor->width, cursor->height, 0); + + memcpy(cursor->bitmap->pixdata, + pointer_image.pixel_data, + pointer_image.width * + pointer_image.height * + pointer_image.bytes_per_pixel); + + cursor->plotted = false; + + return cursor; +} + +void +fb_cursor_click(framebuffer_t *fb, + struct gui_window *g, + browser_mouse_state st) +{ + browser_window_mouse_click(g->bw, + st, + fb->cursor->x, + fb->cursor->y + g->scrolly); + +} + +/* + * Local Variables: + * c-basic-offset:8 + * End: + */ |