diff options
Diffstat (limited to 'ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_virtual_screen.c')
| -rwxr-xr-x | ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_virtual_screen.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_virtual_screen.c b/ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_virtual_screen.c new file mode 100755 index 000000000..8000506b4 --- /dev/null +++ b/ArduinoAddons/Arduino_1.5.x/hardware/marlin/avr/libraries/U8glib/utility/u8g_virtual_screen.c @@ -0,0 +1,145 @@ +/* + + u8g_virtual_screen.c + + Universal 8bit Graphics Library + + Copyright (c) 2012, 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" + +struct _u8g_vs_t +{ + u8g_uint_t x; + u8g_uint_t y; + u8g_t *u8g; +}; +typedef struct _u8g_vs_t u8g_vs_t; + +#define U8g_VS_MAX 4 +uint8_t u8g_vs_cnt = 0; +u8g_vs_t u8g_vs_list[U8g_VS_MAX]; +uint8_t u8g_vs_current; +u8g_uint_t u8g_vs_width; +u8g_uint_t u8g_vs_height; + +uint8_t u8g_dev_vs_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) +{ + switch(msg) + { + default: + { + uint8_t i; + for( i = 0; i < u8g_vs_cnt; i++ ) + { + u8g_call_dev_fn(u8g_vs_list[i].u8g, u8g_vs_list[i].u8g->dev, msg, arg); + } + } + return 1; + case U8G_DEV_MSG_PAGE_FIRST: + u8g_vs_current = 0; + if ( u8g_vs_cnt != 0 ) + return u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, msg, arg); + return 0; + case U8G_DEV_MSG_PAGE_NEXT: + { + uint8_t ret = 0; + if ( u8g_vs_cnt != 0 ) + ret = u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, msg, arg); + if ( ret != 0 ) + return ret; + u8g_vs_current++; /* next device */ + if ( u8g_vs_current >= u8g_vs_cnt ) /* reached end? */ + return 0; + return u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, U8G_DEV_MSG_PAGE_FIRST, arg); + } + return 0; + case U8G_DEV_MSG_GET_WIDTH: + *((u8g_uint_t *)arg) = u8g_vs_width; + break; + case U8G_DEV_MSG_GET_HEIGHT: + *((u8g_uint_t *)arg) = u8g_vs_height; + break; + case U8G_DEV_MSG_GET_PAGE_BOX: + if ( u8g_vs_current < u8g_vs_cnt ) + { + u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, msg, arg); + ((u8g_box_t *)arg)->x0 += u8g_vs_list[u8g_vs_current].x; + ((u8g_box_t *)arg)->x1 += u8g_vs_list[u8g_vs_current].x; + ((u8g_box_t *)arg)->y0 += u8g_vs_list[u8g_vs_current].y; + ((u8g_box_t *)arg)->y1 += u8g_vs_list[u8g_vs_current].y; + } + else + { + ((u8g_box_t *)arg)->x0 = 0; + ((u8g_box_t *)arg)->x1 = 0; + ((u8g_box_t *)arg)->y0 = 0; + ((u8g_box_t *)arg)->y1 = 0; + } + return 1; + case U8G_DEV_MSG_SET_PIXEL: + case U8G_DEV_MSG_SET_8PIXEL: + if ( u8g_vs_current < u8g_vs_cnt ) + { + ((u8g_dev_arg_pixel_t *)arg)->x -= u8g_vs_list[u8g_vs_current].x; + ((u8g_dev_arg_pixel_t *)arg)->y -= u8g_vs_list[u8g_vs_current].y; + return u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, msg, arg); + } + break; + } + return 1; +} + + + +u8g_dev_t u8g_dev_vs = { u8g_dev_vs_fn, NULL, NULL }; + +void u8g_SetVirtualScreenDimension(u8g_t *vs_u8g, u8g_uint_t width, u8g_uint_t height) +{ + if ( vs_u8g->dev != &u8g_dev_vs ) + return; /* abort if there is no a virtual screen device */ + u8g_vs_width = width; + u8g_vs_height = height; +} + +uint8_t u8g_AddToVirtualScreen(u8g_t *vs_u8g, u8g_uint_t x, u8g_uint_t y, u8g_t *child_u8g) +{ + if ( vs_u8g->dev != &u8g_dev_vs ) + return 0; /* abort if there is no a virtual screen device */ + if ( u8g_vs_cnt >= U8g_VS_MAX ) + return 0; /* maximum number of child u8g's reached */ + u8g_vs_list[u8g_vs_cnt].u8g = child_u8g; + u8g_vs_list[u8g_vs_cnt].x = x; + u8g_vs_list[u8g_vs_cnt].y = y; + u8g_vs_cnt++; + return 1; +} + |