da314276a1
Converserely, when the icon is clicked, the icon needs to be hidden on the backgound and the window needs to be restored in its current state (which may be different than the state of the window at the time it was iconified.
Squashed commit of the following:
graphics/: Add checks in all places that I can think to avoid doing something stupid with hidden windows
Improve some naming
Add a new file missing in last commit.
graphics/: Initial, incomplete support for hiding windows.
113 lines
4.3 KiB
C
113 lines
4.3 KiB
C
/****************************************************************************
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* graphics/nxbe/nxbe_flush.c
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*
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* Copyright (C) 2019 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/nxglib.h>
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#include <nuttx/nx/nxbe.h>
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#include "nxbe.h"
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#ifdef CONFIG_NX_RAMBACKED
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxbe_flush
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*
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* Description:
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* After per-window frambuffer has been updated, the modified region must
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* be written to device graphics memory. That function is managed by this
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* simple function. It does the following:
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*
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* 1) It calls nxbe_bitmap_dev() to copy the modified per-window
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* framebuffer into device graphics memory.
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* 2) If CONFIG_NX_SWCURSOR is enabled, it calls the cursor "draw"
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* renderer to update re-draw the currsor image if any portion of
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* graphics display update overwrote the cursor. Since these
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* operations are performed back-to-back, any resulting flicker
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* should be minimized.
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*
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* Input Parameters (same as for nxbe_flush):
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* wnd - The window that will receive the bitmap image
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* dest - Describes the rectangular region in the window that will
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* receive the the bit map (window coordinate frame).
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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 window coordinates, however, origin
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* may lie outside of the display.
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* stride - The width of the full source image in bytes.
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void nxbe_flush(FAR struct nxbe_window_s *wnd,
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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,
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unsigned int stride)
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{
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/* Don't update hidden windows */
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if (!NXBE_ISHIDDEN(wnd))
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{
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/* Copy the modified per-window frambuffer into device memory. */
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nxbe_bitmap_dev(wnd, dest, src, origin, stride);
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#ifdef CONFIG_NX_SWCURSOR
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/* Update cursor backup memory and redraw the cursor in the modified
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* window region.
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*/
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nxbe_cursor_backupdraw_all(wnd, dest);
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#endif
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}
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}
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#endif /* CONFIG_NX_RAMBACKED */
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