87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
/****************************************************************************
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* libs/libnx/nxtk/nxtk_filltrapwindow.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <stdlib.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.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxtk_filltrapwindow
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*
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* Description:
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* Fill the specified rectangle in the client window with the specified
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* color
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*
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* Input Parameters:
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* hfwnd - The window handle returned by nxtk_openwindow
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* trap - The trapezoidal region to be filled
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* color - The color to use in the fill
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*
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* Returned Value:
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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_filltrapwindow(NXTKWINDOW hfwnd,
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FAR const struct nxgl_trapezoid_s *trap,
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nxgl_mxpixel_t color[CONFIG_NX_NPLANES])
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{
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FAR struct nxtk_framedwindow_s *fwnd =
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(FAR struct nxtk_framedwindow_s *)hfwnd;
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struct nxgl_rect_s relclip;
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struct nxgl_trapezoid_s reltrap;
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#ifdef CONFIG_DEBUG_FEATURES
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if (!hfwnd || !trap || !color)
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{
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set_errno(EINVAL);
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return ERROR;
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}
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#endif
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/* Move the trapezoid from window contents area to window area */
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nxgl_trapoffset(&reltrap, trap,
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fwnd->fwrect.pt1.x - fwnd->wnd.bounds.pt1.x,
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fwnd->fwrect.pt1.y - fwnd->wnd.bounds.pt1.y);
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/* Perform the fill, clipping to the client window */
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nxgl_rectoffset(&relclip, &fwnd->fwrect, -fwnd->wnd.bounds.pt1.x,
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-fwnd->wnd.bounds.pt1.y);
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return nx_filltrapezoid((NXWINDOW)hfwnd, &relclip, &reltrap, color);
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}
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