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incubator-nuttx/libs/libnx/nxtk/nxtk_events.c

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/****************************************************************************
* libs/libnx/nxtk/nxtk_events.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.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_event(NXWINDOW hwnd, enum nx_event_e event,
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_event /* event */
};
/****************************************************************************
* 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 = (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.
*/
DEBUGASSERT(fwnd->fwcb != NULL);
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 coordinates 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 != NULL &&
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 toolbar region? */
else if (fwnd->tbcb->mousein != NULL &&
nxgl_rectinside(&fwnd->tbrect, &fwnd->mpos))
{
nxgl_vectsubtract(&relpos, &abspos, &fwnd->tbrect.pt1);
fwnd->tbcb->mousein((NXTKWINDOW)fwnd, &relpos, buttons, fwnd->tbarg);
}
/* REVISIT: Missing logic to detect border events.
*
* NOTE that the following logic is completely redundant! All of the
* above tests could be eliminated and only the following performed with
* the same result. These tests are separated from the above only to
* guarantee a spot for future border mouse event event detection which
* would go about here.
*/
/* As a complexity, when dragging mouse events outside of the containing
* raw window will be sent to this function as well. We will need to pass
* these outside-the-window reports as well.
*
* If the mouse report is below the toolbar, then we will report this
* as a main window event.
*/
else if (fwnd->fwcb->mousein != NULL &&
pos->y >= fwnd->tbheight + CONFIG_NXTK_BORDERWIDTH)
{
nxgl_vectsubtract(&relpos, &abspos, &fwnd->fwrect.pt1);
fwnd->fwcb->mousein((NXTKWINDOW)fwnd, &relpos, buttons, fwnd->fwarg);
}
/* Otherwise, we will report this as a toolbar event. */
else if (fwnd->tbcb->mousein != NULL &&
pos->y < fwnd->tbheight + CONFIG_NXTK_BORDERWIDTH)
{
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_event
****************************************************************************/
static void nxtk_event(NXWINDOW hwnd, enum nx_event_e event,
FAR void *arg1, FAR void *arg2)
{
FAR struct nxtk_framedwindow_s *fwnd =
(FAR struct nxtk_framedwindow_s *)hwnd;
/* Forward the event to the window client */
if (fwnd->fwcb->event != NULL)
{
fwnd->fwcb->event((NXTKWINDOW)fwnd, event, fwnd->fwarg, arg2);
}
}
/****************************************************************************
* Public Functions
****************************************************************************/
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