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.
266 lines
7.7 KiB
C
266 lines
7.7 KiB
C
/****************************************************************************
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* graphics/nxmu/nxmu__mouse.c
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*
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* Copyright (C) 2008-2009, 2011-2012, 2018 Gregory Nutt. All rights
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* 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 <stdint.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/nx.h>
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#include "nxmu.h"
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#ifdef CONFIG_NX_XYINPUT
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static struct nxgl_point_s g_mpos;
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static struct nxgl_point_s g_mrange;
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static uint8_t g_mbutton;
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static FAR struct nxbe_window_s *g_mwnd;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxmu_revalidate_g_mwnd
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*
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* Description:
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* Check if the window pointed to by g_mwnd still exists. If it does,
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* this function returns a pointer to it. Otherwise returns NULL.
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*
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****************************************************************************/
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static struct nxbe_window_s *
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nxmu_revalidate_g_mwnd(FAR struct nxbe_window_s *wnd)
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{
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if (!g_mwnd)
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{
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return NULL;
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}
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while (wnd)
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{
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if (wnd == g_mwnd)
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{
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return wnd;
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}
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wnd = wnd->below;
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}
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return NULL;
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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: nxmu_mouseinit
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*
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* Description:
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* Initialize with the mouse in the center of the display
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*
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****************************************************************************/
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void nxmu_mouseinit(int x, int y)
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{
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g_mrange.x = x;
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g_mrange.y = y;
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g_mpos.x = x / 2;
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g_mpos.y = y / 2;
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g_mbutton = 0;
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}
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/****************************************************************************
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* Name: nxmu_mousereport
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*
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* Description:
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* Report mouse position info to the specified window
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*
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* Input Parameters:
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* wnd - The window to receive the mouse report
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*
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* Returned Value:
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* 0: Mouse report sent; >0: Mouse report not sent; <0: An error occurred
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*
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****************************************************************************/
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int nxmu_mousereport(struct nxbe_window_s *wnd)
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{
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struct nxclimsg_mousein_s outmsg;
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/* Does this window support mouse callbacks? */
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if (wnd->cb->mousein)
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{
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/* Yes.. Is the mouse position visible in this window? */
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if (nxbe_isvisible(wnd, &g_mpos))
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{
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/* Yes... Convert the mouse position to window relative
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* coordinates and send it to the client
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*/
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outmsg.msgid = NX_CLIMSG_MOUSEIN;
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outmsg.wnd = wnd;
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outmsg.buttons = g_mbutton;
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nxgl_vectsubtract(&outmsg.pos, &g_mpos, &wnd->bounds.pt1);
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return nxmu_sendclientwindow(wnd, &outmsg,
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sizeof(struct nxclimsg_mousein_s));
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}
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}
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/* No error occurred, but the mouse report was not sent */
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return 1;
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}
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/****************************************************************************
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* Name: nxmu_mousein
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*
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* Description:
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* New positional data has been received from the thread or interrupt
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* handler that manages some kind of pointing hardware. Route that
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* positional data to the appropriate window client.
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*
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****************************************************************************/
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int nxmu_mousein(FAR struct nxmu_state_s *nxmu,
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FAR const struct nxgl_point_s *pos, int buttons)
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{
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FAR struct nxbe_window_s *wnd;
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nxgl_coord_t x = pos->x;
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nxgl_coord_t y = pos->y;
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uint8_t oldbuttons;
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int ret;
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/* Clip x and y to within the bounding rectangle */
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if (x < 0)
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{
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x = 0;
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}
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else if (x >= g_mrange.x)
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{
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x = g_mrange.x - 1;
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}
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if (y < 0)
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{
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y = 0;
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}
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else if (y >= g_mrange.y)
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{
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y = g_mrange.y - 1;
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}
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/* Look any change in values */
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if (x != g_mpos.x || y != g_mpos.y || buttons != g_mbutton)
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{
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/* Update the mouse value */
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oldbuttons = g_mbutton;
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g_mpos.x = x;
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g_mpos.y = y;
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g_mbutton = buttons;
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/* If a button is already down, regard this as part of a mouse drag
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* event. Pass all the following events to the window where the drag
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* started in.
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*/
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if (oldbuttons)
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{
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g_mwnd = nxmu_revalidate_g_mwnd(nxmu->be.topwnd);
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if (g_mwnd && g_mwnd->cb->mousein)
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{
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struct nxclimsg_mousein_s outmsg;
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outmsg.msgid = NX_CLIMSG_MOUSEIN;
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outmsg.wnd = g_mwnd;
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outmsg.buttons = g_mbutton;
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nxgl_vectsubtract(&outmsg.pos, &g_mpos, &g_mwnd->bounds.pt1);
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return nxmu_sendclientwindow(g_mwnd, &outmsg, sizeof(struct nxclimsg_mousein_s));
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}
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else
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{
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/* Ignore events until the button is released */
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return OK;
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}
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}
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/* Pick the window to receive the mouse event. Start with the top
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* window and go down. Stop with the first window that gets the mouse
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* report
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*/
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for (wnd = nxmu->be.topwnd; wnd; wnd = wnd->below)
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{
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/* The background window normally has no callback structure (unless
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* a client has taken control of the background via nx_requestbkgd()).
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*/
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if (wnd->cb)
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{
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ret = nxmu_mousereport(wnd);
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if (ret == 0)
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{
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break;
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}
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}
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}
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g_mwnd = wnd;
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}
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return OK;
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}
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#endif /* CONFIG_NX_XYINPUT */
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