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							399 lines
						
					
					
						
							12 KiB
						
					
					
				| /*
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| 
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|   u8g_rot.c
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| 
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|   Universal 8bit Graphics Library
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|   
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|   Copyright (c) 2011, olikraus@gmail.com
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|   All rights reserved.
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| 
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|   Redistribution and use in source and binary forms, with or without modification, 
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|   are permitted provided that the following conditions are met:
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| 
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|   * Redistributions of source code must retain the above copyright notice, this list 
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|     of conditions and the following disclaimer.
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|     
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|   * Redistributions in binary form must reproduce the above copyright notice, this 
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|     list of conditions and the following disclaimer in the documentation and/or other 
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|     materials provided with the distribution.
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| 
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|   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
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|   CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
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|   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
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|   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
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|   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
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|   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
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|   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
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|   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
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|   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
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|   CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
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|   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
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|   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
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|   ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
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|   
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|   
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| */
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| 
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| #include "u8g.h"
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| 
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| uint8_t u8g_dev_rot90_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg);
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| uint8_t u8g_dev_rot180_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg);
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| uint8_t u8g_dev_rot270_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg);
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| 
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| u8g_dev_t u8g_dev_rot = { u8g_dev_rot90_fn, NULL, NULL };
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| 
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| 
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| void u8g_UndoRotation(u8g_t *u8g)
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| {
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|   if ( u8g->dev != &u8g_dev_rot )
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|     return;
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|   u8g->dev = u8g_dev_rot.dev_mem;
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|   u8g_UpdateDimension(u8g);
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| }
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| 
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| void u8g_SetRot90(u8g_t *u8g)
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| {
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|   if ( u8g->dev != &u8g_dev_rot )
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|   {
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|     u8g_dev_rot.dev_mem = u8g->dev;
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|     u8g->dev = &u8g_dev_rot;
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|   }
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|   u8g_dev_rot.dev_fn = u8g_dev_rot90_fn;
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|   u8g_UpdateDimension(u8g);
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| }
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| 
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| void u8g_SetRot180(u8g_t *u8g)
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| {
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|   if ( u8g->dev != &u8g_dev_rot )
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|   {
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|     u8g_dev_rot.dev_mem = u8g->dev;
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|     u8g->dev = &u8g_dev_rot;
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|   }
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|   u8g_dev_rot.dev_fn = u8g_dev_rot180_fn;
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|   u8g_UpdateDimension(u8g);
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| }
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| 
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| void u8g_SetRot270(u8g_t *u8g)
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| {
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|   if ( u8g->dev != &u8g_dev_rot )
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|   {
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|     u8g_dev_rot.dev_mem = u8g->dev;
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|     u8g->dev = &u8g_dev_rot;
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|   }
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|   u8g_dev_rot.dev_fn = u8g_dev_rot270_fn;
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|   u8g_UpdateDimension(u8g);
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| }
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| 
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| uint8_t u8g_dev_rot90_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
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| {
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|   u8g_dev_t *rotation_chain = (u8g_dev_t *)(dev->dev_mem);
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|   switch(msg)
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|   {
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|     default:
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|     /*
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|     case U8G_DEV_MSG_INIT:
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|     case U8G_DEV_MSG_STOP:
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|     case U8G_DEV_MSG_PAGE_FIRST:
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|     case U8G_DEV_MSG_PAGE_NEXT:
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|     case U8G_DEV_MSG_SET_COLOR_INDEX:
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|     case U8G_DEV_MSG_SET_XY_CB:
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|     */
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|       return u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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| #ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
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|     case U8G_DEV_MSG_IS_BBX_INTERSECTION:
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|       {
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|         u8g_dev_arg_bbx_t *bbx = (u8g_dev_arg_bbx_t *)arg;
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|         u8g_uint_t x, y, tmp;
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|         
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|         /* transform the reference point */
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|         y = bbx->x;
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|         x = u8g->height;
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|         /* x = u8g_GetWidthLL(u8g, rotation_chain); */
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|         x -= bbx->y; 
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|         x--;
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|         
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|         /* adjust point to be the uppler left corner again */
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|         x -= bbx->h;
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|         x++;
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|         
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|         /* swap box dimensions */        
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|         tmp = bbx->w;
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|         bbx->w = bbx->h;
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|         bbx->h = tmp;
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|         
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|         /* store x,y */
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|         bbx->x = x;
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|         bbx->y = y;
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|       }
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|       return u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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| #endif /* U8G_DEV_MSG_IS_BBX_INTERSECTION */
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|     case U8G_DEV_MSG_GET_PAGE_BOX:
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|       /* get page size from next device in the chain */
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|       u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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|       //printf("pre x: %3d..%3d y: %3d..%3d   ", ((u8g_box_t *)arg)->x0, ((u8g_box_t *)arg)->x1, ((u8g_box_t *)arg)->y0, ((u8g_box_t *)arg)->y1);
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|       {
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| 	u8g_box_t new_box;
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| 	//new_box.x0 = u8g_GetHeightLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->y1 - 1;
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| 	//new_box.x1 = u8g_GetHeightLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->y0 - 1;
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| 	
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| 	new_box.x0 = ((u8g_box_t *)arg)->y0;
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| 	new_box.x1 = ((u8g_box_t *)arg)->y1;
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| 	new_box.y0 = ((u8g_box_t *)arg)->x0;
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| 	new_box.y1 = ((u8g_box_t *)arg)->x1;
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| 	*((u8g_box_t *)arg) = new_box;
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| 	//printf("post x: %3d..%3d y: %3d..%3d\n", ((u8g_box_t *)arg)->x0, ((u8g_box_t *)arg)->x1, ((u8g_box_t *)arg)->y0, ((u8g_box_t *)arg)->y1);
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|       }
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|       break;
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|     case U8G_DEV_MSG_GET_WIDTH:
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|       *((u8g_uint_t *)arg) = u8g_GetHeightLL(u8g,rotation_chain);
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|       break;
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|     case U8G_DEV_MSG_GET_HEIGHT:
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|       *((u8g_uint_t *)arg) = u8g_GetWidthLL(u8g, rotation_chain);
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|       break;
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|     case U8G_DEV_MSG_SET_PIXEL:
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|       {
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|         u8g_uint_t x, y;
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|         y = ((u8g_dev_arg_pixel_t *)arg)->x;
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|         x = u8g_GetWidthLL(u8g, rotation_chain);
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|         x -= ((u8g_dev_arg_pixel_t *)arg)->y; 
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|         x--;
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|         ((u8g_dev_arg_pixel_t *)arg)->x = x;
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|         ((u8g_dev_arg_pixel_t *)arg)->y = y;
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|       }
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|       u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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|       break;
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|     case U8G_DEV_MSG_SET_8PIXEL:
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|       {
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|         u8g_uint_t x, y;
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| 	//uint16_t x,y;
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|         y = ((u8g_dev_arg_pixel_t *)arg)->x;
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|         x = u8g_GetWidthLL(u8g, rotation_chain);
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|         x -= ((u8g_dev_arg_pixel_t *)arg)->y; 
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|         x--;
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|         ((u8g_dev_arg_pixel_t *)arg)->x = x;
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|         ((u8g_dev_arg_pixel_t *)arg)->y = y;
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|         ((u8g_dev_arg_pixel_t *)arg)->dir+=1;
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|         ((u8g_dev_arg_pixel_t *)arg)->dir &= 3;
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|       }
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|       u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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|       break;
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|   }
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|   return 1;
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| }
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| 
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| uint8_t u8g_dev_rot180_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
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| {
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|   u8g_dev_t *rotation_chain = (u8g_dev_t *)(dev->dev_mem);
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|   switch(msg)
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|   {
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|     default:
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|     /*
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|     case U8G_DEV_MSG_INIT:
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|     case U8G_DEV_MSG_STOP:
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|     case U8G_DEV_MSG_PAGE_FIRST:
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|     case U8G_DEV_MSG_PAGE_NEXT:
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|     case U8G_DEV_MSG_SET_COLOR_INDEX:
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|     case U8G_DEV_MSG_SET_XY_CB:
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|     */
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|       return u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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| #ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
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|     case U8G_DEV_MSG_IS_BBX_INTERSECTION:
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|       {
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|         u8g_dev_arg_bbx_t *bbx = (u8g_dev_arg_bbx_t *)arg;
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|         u8g_uint_t x, y;
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|         
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|         /* transform the reference point */
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|         //y = u8g_GetHeightLL(u8g, rotation_chain);
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|         y = u8g->height;
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|         y -= bbx->y; 
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|         y--;
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|         
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|         //x = u8g_GetWidthLL(u8g, rotation_chain);
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|         x = u8g->width;
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|         x -= bbx->x; 
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|         x--;
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|         
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|         /* adjust point to be the uppler left corner again */
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|         y -= bbx->h;
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|         y++;
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|         
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|         x -= bbx->w;
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|         x++;
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|                 
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|         /* store x,y */
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|         bbx->x = x;
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|         bbx->y = y;
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|       }
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|       return u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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| #endif /* U8G_DEV_MSG_IS_BBX_INTERSECTION */
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|     case U8G_DEV_MSG_GET_PAGE_BOX:
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|       /* get page size from next device in the chain */
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|       u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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|       //printf("pre x: %3d..%3d y: %3d..%3d   ", ((u8g_box_t *)arg)->x0, ((u8g_box_t *)arg)->x1, ((u8g_box_t *)arg)->y0, ((u8g_box_t *)arg)->y1);
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|       {
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| 	u8g_box_t new_box;
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| 	
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| 	new_box.x0 = u8g_GetWidthLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->x1 - 1;
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| 	new_box.x1 = u8g_GetWidthLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->x0 - 1;
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| 	new_box.y0 = u8g_GetHeightLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->y1 - 1;
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| 	new_box.y1 = u8g_GetHeightLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->y0 - 1;
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| 	*((u8g_box_t *)arg) = new_box;
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| 	//printf("post x: %3d..%3d y: %3d..%3d\n", ((u8g_box_t *)arg)->x0, ((u8g_box_t *)arg)->x1, ((u8g_box_t *)arg)->y0, ((u8g_box_t *)arg)->y1);
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|       }
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|       break;
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|     case U8G_DEV_MSG_GET_WIDTH:
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|       *((u8g_uint_t *)arg) = u8g_GetWidthLL(u8g,rotation_chain);
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|       break;
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|     case U8G_DEV_MSG_GET_HEIGHT:
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|       *((u8g_uint_t *)arg) = u8g_GetHeightLL(u8g, rotation_chain);
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|       break;
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|     case U8G_DEV_MSG_SET_PIXEL:
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|       {
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|         u8g_uint_t x, y;
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| 
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|         y = u8g_GetHeightLL(u8g, rotation_chain);
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|         y -= ((u8g_dev_arg_pixel_t *)arg)->y; 
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|         y--;
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|         
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|         x = u8g_GetWidthLL(u8g, rotation_chain);
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|         x -= ((u8g_dev_arg_pixel_t *)arg)->x; 
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|         x--;
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|         
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|         ((u8g_dev_arg_pixel_t *)arg)->x = x;
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|         ((u8g_dev_arg_pixel_t *)arg)->y = y;
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|       }
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|       u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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|       break;
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|     case U8G_DEV_MSG_SET_8PIXEL:
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|       {
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|         u8g_uint_t x, y;
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|         
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|         y = u8g_GetHeightLL(u8g, rotation_chain);
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|         y -= ((u8g_dev_arg_pixel_t *)arg)->y; 
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|         y--;
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|         
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|         x = u8g_GetWidthLL(u8g, rotation_chain);
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|         x -= ((u8g_dev_arg_pixel_t *)arg)->x; 
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|         x--;
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|         
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|         ((u8g_dev_arg_pixel_t *)arg)->x = x;
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|         ((u8g_dev_arg_pixel_t *)arg)->y = y;
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|         ((u8g_dev_arg_pixel_t *)arg)->dir+=2;
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|         ((u8g_dev_arg_pixel_t *)arg)->dir &= 3;
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|       }
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|       u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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|       break;
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|   }
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|   return 1;
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| }
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| 
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| uint8_t u8g_dev_rot270_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
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| {
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|   u8g_dev_t *rotation_chain = (u8g_dev_t *)(dev->dev_mem);
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|   switch(msg)
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|   {
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|     default:
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|     /*
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|     case U8G_DEV_MSG_INIT:
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|     case U8G_DEV_MSG_STOP:
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|     case U8G_DEV_MSG_PAGE_FIRST:
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|     case U8G_DEV_MSG_PAGE_NEXT:
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|     case U8G_DEV_MSG_SET_COLOR_INDEX:
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|     case U8G_DEV_MSG_SET_XY_CB:
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|     */
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|       return u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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| #ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
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|     case U8G_DEV_MSG_IS_BBX_INTERSECTION:
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|       {
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|         u8g_dev_arg_bbx_t *bbx = (u8g_dev_arg_bbx_t *)arg;
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|         u8g_uint_t x, y, tmp;
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|         
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|         /* transform the reference point */
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|         x = bbx->y;
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|         
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|         y = u8g->width;
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|         /* y = u8g_GetHeightLL(u8g, rotation_chain); */
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|         y -= bbx->x; 
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|         y--;
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|                 
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|         /* adjust point to be the uppler left corner again */
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|         y -= bbx->w;
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|         y++;
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|         
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|         /* swap box dimensions */        
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|         tmp = bbx->w;
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|         bbx->w = bbx->h;
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|         bbx->h = tmp;
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|         
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|         /* store x,y */
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|         bbx->x = x;
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|         bbx->y = y;
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|       }
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|       return u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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| #endif /* U8G_DEV_MSG_IS_BBX_INTERSECTION */
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|     case U8G_DEV_MSG_GET_PAGE_BOX:
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|       /* get page size from next device in the chain */
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|       u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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|       //printf("pre x: %3d..%3d y: %3d..%3d   ", ((u8g_box_t *)arg)->x0, ((u8g_box_t *)arg)->x1, ((u8g_box_t *)arg)->y0, ((u8g_box_t *)arg)->y1);
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|       {
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| 	u8g_box_t new_box;
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| 	
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| 	new_box.x0 = u8g_GetHeightLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->y1 - 1;
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| 	new_box.x1 = u8g_GetHeightLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->y0 - 1;
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| 	new_box.y0 = u8g_GetWidthLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->x1 - 1;
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| 	new_box.y1 = u8g_GetWidthLL(u8g,rotation_chain) - ((u8g_box_t *)arg)->x0 - 1;
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| 	*((u8g_box_t *)arg) = new_box;
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| 	//printf("post x: %3d..%3d y: %3d..%3d\n", ((u8g_box_t *)arg)->x0, ((u8g_box_t *)arg)->x1, ((u8g_box_t *)arg)->y0, ((u8g_box_t *)arg)->y1);
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|       }
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|       break;
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|     case U8G_DEV_MSG_GET_WIDTH:
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|       *((u8g_uint_t *)arg) = u8g_GetHeightLL(u8g,rotation_chain);
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|       break;
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|     case U8G_DEV_MSG_GET_HEIGHT:
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|       *((u8g_uint_t *)arg) = u8g_GetWidthLL(u8g, rotation_chain);
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|       break;
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|     case U8G_DEV_MSG_SET_PIXEL:
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|       {
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|         u8g_uint_t x, y;
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|         x = ((u8g_dev_arg_pixel_t *)arg)->y;
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|         
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|         y = u8g_GetHeightLL(u8g, rotation_chain);
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|         y -= ((u8g_dev_arg_pixel_t *)arg)->x; 
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|         y--;
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|           
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|         /*
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|         x = u8g_GetWidthLL(u8g, rotation_chain);
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|         x -= ((u8g_dev_arg_pixel_t *)arg)->y; 
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|         x--;
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|         */
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|         ((u8g_dev_arg_pixel_t *)arg)->x = x;
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|         ((u8g_dev_arg_pixel_t *)arg)->y = y;
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|       }
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|       u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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|       break;
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|     case U8G_DEV_MSG_SET_8PIXEL:
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|       {
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|         u8g_uint_t x, y;
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|         x = ((u8g_dev_arg_pixel_t *)arg)->y;
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|         
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|         y = u8g_GetHeightLL(u8g, rotation_chain);
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|         y -= ((u8g_dev_arg_pixel_t *)arg)->x; 
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|         y--;
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|           
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|         /*
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|         x = u8g_GetWidthLL(u8g, rotation_chain);
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|         x -= ((u8g_dev_arg_pixel_t *)arg)->y; 
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|         x--;
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|         */
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|         ((u8g_dev_arg_pixel_t *)arg)->x = x;
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|         ((u8g_dev_arg_pixel_t *)arg)->y = y;
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|         ((u8g_dev_arg_pixel_t *)arg)->dir+=3;
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|         ((u8g_dev_arg_pixel_t *)arg)->dir &= 3;
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|       }
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|       u8g_call_dev_fn(u8g, rotation_chain, msg, arg);
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|       break;
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|   }
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|   return 1;
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| }
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| 
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