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evrooig/lib/u8g2/clib/u8g2_box.c

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/*
u8g2_box.c
Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
Copyright (c) 2016, 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 "u8g2.h"
/*
draw a filled box
restriction: does not work for w = 0 or h = 0
*/
void u8g2_DrawBox(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t w, u8g2_uint_t h)
{
#ifdef U8G2_WITH_INTERSECTION
if ( u8g2_IsIntersection(u8g2, x, y, x+w, y+h) == 0 )
return;
#endif /* U8G2_WITH_INTERSECTION */
while( h != 0 )
{
u8g2_DrawHVLine(u8g2, x, y, w, 0);
y++;
h--;
}
}
/*
draw a frame (empty box)
restriction: does not work for w = 0 or h = 0
*/
void u8g2_DrawFrame(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t w, u8g2_uint_t h)
{
u8g2_uint_t xtmp = x;
#ifdef U8G2_WITH_INTERSECTION
if ( u8g2_IsIntersection(u8g2, x, y, x+w, y+h) == 0 )
return;
#endif /* U8G2_WITH_INTERSECTION */
u8g2_DrawHVLine(u8g2, x, y, w, 0);
if (h >= 2) {
h-=2;
y++;
if (h > 0) {
u8g2_DrawHVLine(u8g2, x, y, h, 1);
x+=w;
x--;
u8g2_DrawHVLine(u8g2, x, y, h, 1);
y+=h;
}
u8g2_DrawHVLine(u8g2, xtmp, y, w, 0);
}
}
void u8g2_DrawRBox(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t w, u8g2_uint_t h, u8g2_uint_t r)
{
u8g2_uint_t xl, yu;
u8g2_uint_t yl, xr;
#ifdef U8G2_WITH_INTERSECTION
if ( u8g2_IsIntersection(u8g2, x, y, x+w, y+h) == 0 )
return;
#endif /* U8G2_WITH_INTERSECTION */
xl = x;
xl += r;
yu = y;
yu += r;
xr = x;
xr += w;
xr -= r;
xr -= 1;
yl = y;
yl += h;
yl -= r;
yl -= 1;
u8g2_DrawDisc(u8g2, xl, yu, r, U8G2_DRAW_UPPER_LEFT);
u8g2_DrawDisc(u8g2, xr, yu, r, U8G2_DRAW_UPPER_RIGHT);
u8g2_DrawDisc(u8g2, xl, yl, r, U8G2_DRAW_LOWER_LEFT);
u8g2_DrawDisc(u8g2, xr, yl, r, U8G2_DRAW_LOWER_RIGHT);
{
u8g2_uint_t ww, hh;
ww = w;
ww -= r;
ww -= r;
xl++;
yu++;
if ( ww >= 3 )
{
ww -= 2;
u8g2_DrawBox(u8g2, xl, y, ww, r+1);
u8g2_DrawBox(u8g2, xl, yl, ww, r+1);
}
hh = h;
hh -= r;
hh -= r;
//h--;
if ( hh >= 3 )
{
hh -= 2;
u8g2_DrawBox(u8g2, x, yu, w, hh);
}
}
}
void u8g2_DrawRFrame(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t w, u8g2_uint_t h, u8g2_uint_t r)
{
u8g2_uint_t xl, yu;
#ifdef U8G2_WITH_INTERSECTION
if ( u8g2_IsIntersection(u8g2, x, y, x+w, y+h) == 0 )
return;
#endif /* U8G2_WITH_INTERSECTION */
xl = x;
xl += r;
yu = y;
yu += r;
{
u8g2_uint_t yl, xr;
xr = x;
xr += w;
xr -= r;
xr -= 1;
yl = y;
yl += h;
yl -= r;
yl -= 1;
u8g2_DrawCircle(u8g2, xl, yu, r, U8G2_DRAW_UPPER_LEFT);
u8g2_DrawCircle(u8g2, xr, yu, r, U8G2_DRAW_UPPER_RIGHT);
u8g2_DrawCircle(u8g2, xl, yl, r, U8G2_DRAW_LOWER_LEFT);
u8g2_DrawCircle(u8g2, xr, yl, r, U8G2_DRAW_LOWER_RIGHT);
}
{
u8g2_uint_t ww, hh;
ww = w;
ww -= r;
ww -= r;
hh = h;
hh -= r;
hh -= r;
xl++;
yu++;
if ( ww >= 3 )
{
ww -= 2;
h--;
u8g2_DrawHLine(u8g2, xl, y, ww);
u8g2_DrawHLine(u8g2, xl, y+h, ww);
}
if ( hh >= 3 )
{
hh -= 2;
w--;
u8g2_DrawVLine(u8g2, x, yu, hh);
u8g2_DrawVLine(u8g2, x+w, yu, hh);
}
}
}