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Diffstat (limited to 'framebuffer/fb_cursor.c')
-rw-r--r--framebuffer/fb_cursor.c241
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:
+ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-01 00:45:20 +0000