diff --git a/Libraries/u8glib/u8g_cursor.c b/Libraries/u8glib/u8g_cursor.c new file mode 100644 --- /dev/null +++ b/Libraries/u8glib/u8g_cursor.c @@ -0,0 +1,99 @@ +/* + + u8g_cursor.c + + Universal 8bit Graphics Library + + Copyright (c) 2011, olikraus@gmail.com + All rights reserved. + + Redistribution and use in source and binary forms, with or without modification, + are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, this list + of conditions and the following disclaimer. + + * 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. + + 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 HOLDER 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. + + +*/ + +#include "u8g.h" + +void u8g_SetCursorFont(u8g_t *u8g, const u8g_pgm_uint8_t *cursor_font) +{ + u8g->cursor_font = cursor_font; +} + +void u8g_SetCursorStyle(u8g_t *u8g, uint8_t encoding) +{ + u8g->cursor_encoding = encoding; +} + +void u8g_SetCursorColor(u8g_t *u8g, uint8_t fg, uint8_t bg) +{ + u8g->cursor_bg_color = bg; + u8g->cursor_fg_color = fg; +} + +void u8g_SetCursorPos(u8g_t *u8g, u8g_uint_t cursor_x, u8g_uint_t cursor_y) +{ + u8g->cursor_x = cursor_x; + u8g->cursor_y = cursor_y; +} + +void u8g_EnableCursor(u8g_t *u8g) +{ + u8g->cursor_fn = u8g_DrawCursor; +} + +void u8g_DisableCursor(u8g_t *u8g) +{ + u8g->cursor_fn = (u8g_draw_cursor_fn)0; +} + +void u8g_DrawCursor(u8g_t *u8g) +{ + const u8g_pgm_uint8_t *font; + uint8_t color; + uint8_t encoding = u8g->cursor_encoding; + + /* get current values */ + color = u8g_GetColorIndex(u8g); + font = u8g->font; + + /* draw cursor */ + u8g->font = u8g->cursor_font; + encoding++; + u8g_SetColorIndex(u8g, u8g->cursor_bg_color); + /* 27. Jan 2013: replaced call to u8g_DrawGlyph with call to u8g_draw_glyph */ + /* required, because y adjustment should not happen to the cursor fonts */ + u8g_draw_glyph(u8g, u8g->cursor_x, u8g->cursor_y, encoding); + encoding--; + u8g_SetColorIndex(u8g, u8g->cursor_fg_color); + /* 27. Jan 2013: replaced call to u8g_DrawGlyph with call to u8g_draw_glyph */ + /* required, because y adjustment should not happen to the cursor fonts */ + /* u8g_DrawGlyph(u8g, u8g->cursor_x, u8g->cursor_y, encoding); */ + u8g_draw_glyph(u8g, u8g->cursor_x, u8g->cursor_y, encoding); + + /* restore previous values */ + u8g->font = font; + u8g_SetColorIndex(u8g, color); +} +