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nuttx/libs/libnx/nxtk/nxtk_events.c

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/****************************************************************************
* libs/libnx/nxtk/nxtk_events.c
*
* Copyright (C) 2008-2009, 2012, 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <semaphore.h>
#include <debug.h>
#include <errno.h>
#include <assert.h>
#include <nuttx/nx/nx.h>
#include "nxtk.h"
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static void nxtk_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
bool morem, FAR void *arg);
static void nxtk_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
FAR const struct nxgl_point_s *pos,
FAR const struct nxgl_rect_s *bounds,
FAR void *arg);
#ifdef CONFIG_NX_XYINPUT
static void nxtk_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
uint8_t buttons, FAR void *arg);
#endif
#ifdef CONFIG_NX_KBD
static void nxtk_kbdin(NXWINDOW hwnd, uint8_t nch, const uint8_t *ch,
FAR void *arg);
#endif
static void nxtk_blocked(NXWINDOW hwnd, FAR void *arg1, FAR void *arg2);
/****************************************************************************
* Public Data
****************************************************************************/
const struct nx_callback_s g_nxtkcb =
{
nxtk_redraw, /* redraw */
nxtk_position /* position */
#ifdef CONFIG_NX_XYINPUT
, nxtk_mousein /* mousein */
#endif
#ifdef CONFIG_NX_KBD
, nxtk_kbdin /* kbdin */
#endif
, nxtk_blocked /* blocked */
};
/****************************************************************************
* Name: nxtk_redraw
****************************************************************************/
static void nxtk_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
bool more, FAR void *arg)
{
FAR struct nxtk_framedwindow_s *fwnd;
struct nxgl_rect_s intersection;
DEBUGASSERT(hwnd != NULL && rect != NULL && fwnd->fwcb != NULL);
fwnd = (FAR struct nxtk_framedwindow_s *)hwnd;
ginfo("hwnd=%p rect={(%d,%d),(%d,%d)} more=%d\n",
hwnd, rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y, more);
/* The incoming rectangle (rect) is relative to the containing window
* (i.e., (0,0) is the top left corner of the outer, containing window).
* If any part of the rectangle overlaps the client sub-window region, then
* forward the redraw callback.
*/
if (fwnd->fwcb->redraw)
{
/* Clip the redraw rectangle so that it lies within the client sub-window
* bounds and move the rectangle to that it is relative to the client
* sub-window (i.e., (0,0) is the top left corner of the client sub-window).
*/
nxtk_containerclip(fwnd, &intersection, rect, &fwnd->fwrect);
ginfo("fwrect intersection={(%d,%d),(%d,%d)}\n",
intersection.pt1.x, intersection.pt1.y,
intersection.pt2.x, intersection.pt2.y);
if (!nxgl_nullrect(&intersection))
{
fwnd->fwcb->redraw((NXTKWINDOW)fwnd, &intersection, false, fwnd->fwarg);
}
}
/* If any part of the rectangle overlaps the client toolbar region, then
* forward the redraw callback.
*/
if (fwnd->tbcb && fwnd->tbcb->redraw)
{
/* Clip the redraw rectangle so that it lies within the toolbar sub-window
* bounds and move the rectangle to that it is relative to the toolbar
* sub-window (i.e., (0,0) is the top left corner of the client sub-window).
*/
nxtk_containerclip(fwnd, &intersection, rect, &fwnd->tbrect);
ginfo("tbrect intersection={(%d,%d),(%d,%d)}\n",
intersection.pt1.x, intersection.pt1.y,
intersection.pt2.x, intersection.pt2.y);
if (!nxgl_nullrect(&intersection))
{
fwnd->tbcb->redraw((NXTKWINDOW)fwnd, &intersection, false, fwnd->tbarg);
}
}
/* Then draw the frame */
nxtk_drawframe(fwnd, rect);
}
/****************************************************************************
* Name: nxtk_position
****************************************************************************/
static void nxtk_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
FAR const struct nxgl_point_s *pos,
FAR const struct nxgl_rect_s *bounds,
FAR void *arg)
{
FAR struct nxtk_framedwindow_s *fwnd = (FAR struct nxtk_framedwindow_s *)hwnd;
struct nxgl_size_s subwindowsize;
ginfo("hwnd=%p size=(%d,%d) pos=(%d,%d) bounds={(%d,%d),(%d,%d)}\n",
hwnd, size->w, size->h, pos->x, pos->y,
bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y);
/* Recalculate the dimensions of the toolbar and client windows */
nxtk_setsubwindows(fwnd);
/* Report the size / position of the client sub-window */
if (fwnd->fwcb->position)
{
nxgl_rectsize(&subwindowsize, &fwnd->fwrect);
fwnd->fwcb->position((NXTKWINDOW)fwnd, &subwindowsize,
&fwnd->fwrect.pt1, bounds, fwnd->fwarg);
}
/* Report the size / position of the toolbar sub-window */
if (fwnd->tbcb && fwnd->tbcb->position)
{
nxgl_rectsize(&subwindowsize, &fwnd->tbrect);
fwnd->tbcb->position((NXTKWINDOW)fwnd, &subwindowsize,
&fwnd->tbrect.pt1, bounds, fwnd->tbarg);
}
}
/****************************************************************************
* Name: nxtk_mousein
****************************************************************************/
#ifdef CONFIG_NX_XYINPUT
static void nxtk_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
uint8_t buttons, FAR void *arg)
{
FAR struct nxtk_framedwindow_s *fwnd = (FAR struct nxtk_framedwindow_s *)hwnd;
struct nxgl_point_s abspos;
struct nxgl_point_s relpos;
/* Raise the window to the top if any mouse button was pressed or if auto-raise
* is configured. Do this before reporting the mouse event (because processing
* of the mouse event could change the ordering again).
*/
/* REVISIT: This does not work correctly. In a scenario where (1) there are
* multiple queued touchscreen events and (2) the result of the first input
* was to switch windows, then this autoraise implementation will cause the
* window to revert to the previous window. Not good behavior.
*/
#ifdef CONFIG_NXTK_AUTORAISE
if (fwnd->wnd.above != NULL)
#else
if (buttons != 0 && fwnd->wnd.above != NULL)
#endif
{
nx_raise((NXWINDOW)&fwnd->wnd);
}
/* When we get here, the mouse position that we receive has already been
* offset by the window origin. Here we need to detect mouse events in
* the various regions of the windows: The toolbar, the client window,
* or the frame. And then offset the position accordingly.
*/
/* The fwrect and tbrect boxes are both in absolute display coordinates. So
* the easiest thing to do is to restore the mouse position to absolute
* display coordiantes before making the comparisons and adjustments.
*/
nxgl_vectoradd(&abspos, pos, &fwnd->wnd.bounds.pt1);
/* In order to deliver mouse release events to the same window where the
* mouse down event happened, we store the initial mouse down location.
*/
if (fwnd->mbutton == 0 && buttons != 0)
{
fwnd->mpos = abspos;
}
fwnd->mbutton = buttons;
/* Is the mouse position inside of the client window region? */
if (fwnd->fwcb->mousein && nxgl_rectinside(&fwnd->fwrect, &fwnd->mpos))
{
nxgl_vectsubtract(&relpos, &abspos, &fwnd->fwrect.pt1);
fwnd->fwcb->mousein((NXTKWINDOW)fwnd, &relpos, buttons, fwnd->fwarg);
}
/* If the mouse position inside the toobar region? */
else if (fwnd->tbcb->mousein && nxgl_rectinside(&fwnd->tbrect, &fwnd->mpos))
{
nxgl_vectsubtract(&relpos, &abspos, &fwnd->tbrect.pt1);
fwnd->tbcb->mousein((NXTKWINDOW)fwnd, &relpos, buttons, fwnd->tbarg);
}
}
#endif
/****************************************************************************
* Name: nxtk_kbdin
****************************************************************************/
#ifdef CONFIG_NX_KBD
static void nxtk_kbdin(NXWINDOW hwnd, uint8_t nch, const uint8_t *ch,
FAR void *arg)
{
FAR struct nxtk_framedwindow_s *fwnd = (FAR struct nxtk_framedwindow_s *)hwnd;
/* Only the client window gets keyboard input */
if (fwnd->fwcb->kbdin)
{
fwnd->fwcb->kbdin((NXTKWINDOW)fwnd, nch, ch, fwnd->fwarg);
}
}
#endif
/****************************************************************************
* Name: nxtk_blocked
****************************************************************************/
static void nxtk_blocked(NXWINDOW hwnd, FAR void *arg1, FAR void *arg2)
{
FAR struct nxtk_framedwindow_s *fwnd = (FAR struct nxtk_framedwindow_s *)hwnd;
/* Only the client window gets keyboard input */
if (fwnd->fwcb->blocked)
{
fwnd->fwcb->blocked((NXTKWINDOW)fwnd, fwnd->fwarg, arg2);
}
}
/****************************************************************************
* Public Functions
****************************************************************************/
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