138 lines
5.3 KiB
C
138 lines
5.3 KiB
C
/****************************************************************************
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* graphics/nxtk/nxtk_bitmaptoolbar.c
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*
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* Copyright (C) 2008-2009, 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/nx/nx.h>
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#include <nuttx/nx/nxtk.h>
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#include "nxtk_internal.h"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxtk_bitmaptoolbar
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*
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* Description:
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* Copy a rectangular region of a larger image into the rectangle in the
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* specified toolbar sub-window.
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*
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* Input Parameters:
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* hfwnd - The sub-window twhose toolbar will receive the bitmap image
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* dest - Describes the rectangular region on in the toolbar sub-window
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* will receive the bit map.
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* src - The start of the source image.
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* origin - The origin of the upper, left-most corner of the full bitmap.
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* Both dest and origin are in sub-window coordinates, however, the
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* origin may lie outside of the sub-window display.
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* stride - The width of the full source image in pixels.
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*
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* Return:
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* OK on success; ERROR on failure with errno set appropriately
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*
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****************************************************************************/
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int nxtk_bitmaptoolbar(NXTKWINDOW hfwnd, FAR const struct nxgl_rect_s *dest,
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FAR const void *src[CONFIG_NX_NPLANES],
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FAR const struct nxgl_point_s *origin, unsigned int stride)
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{
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FAR struct nxtk_framedwindow_s *fwnd = (FAR struct nxtk_framedwindow_s *)hfwnd;
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struct nxgl_point_s wndorigin;
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struct nxgl_rect_s clipdest;
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#ifdef CONFIG_DEBUG
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if (!hfwnd || !dest || !src || !origin)
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{
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errno = EINVAL;
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return ERROR;
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}
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#endif
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/* Clip the rectangle so that it lies within the sub-window bounds
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* then move the rectangle to that it is relative to the containing
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* window.
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*/
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nxtk_subwindowclip(fwnd, &clipdest, dest, &fwnd->tbrect);
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/* Now, move the bitmap origin so that it is relative to the containing
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* window, not the sub-window.
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*
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* Temporarily, position the origin in absolute screen coordinates
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*/
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nxgl_vectoradd(&wndorigin, origin, &fwnd->tbrect.pt1);
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/* Then move the origin so that is relative to the containing window, not the
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* client subwindow
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*/
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nxgl_vectsubtract(&wndorigin, &wndorigin, &fwnd->wnd.bounds.pt1);
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/* Then copy the bitmap */
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nx_bitmap((NXWINDOW)hfwnd, &clipdest, src, &wndorigin, stride);
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return OK;
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}
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