a06b47394b
Squashed commit of the following:
apps/graphics/twm4nx: The calibration seems to be functional. Needs more testing.
apps/graphics/twm4nx: Extend event handling to support receiving raw, uncalibaated touchscreen inputs. This is needed for touchscreen calibration.
apps/graphics/twm4nx: Extend event handling to support shutting down of externally controlled windows. This is need to end the calibration sequence.
apps/graphics/twm4nx: CCalibration now compiles okay, but is missing event handling logic for touchscreen input and for window termination.
apps/graphics/twm4nx: Move application-related files into different directories to separate them from the core Twm4Nx files.
apps/graphics/twm4nx: A little more progress on calibration display.
app/graphics/twm4ndx: Add files that will support a calibration display. This initial commit is simply the calibration display from NxWM and is not hooked into the configuration or build systems.
apps/graphics/twm4ndx: Compile out cursor support if we are using a mouse
299 lines
11 KiB
C++
299 lines
11 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// apps/include/graphics/twm4nx/cresize.hxx
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// Resize function externs
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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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// Largely an original work but derives from TWM 1.0.10 in many ways:
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//
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// Copyright 1989,1998 The Open Group
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// Copyright 1988 by Evans & Sutherland Computer Corporation,
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//
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// Please refer to apps/twm4nx/COPYING for detailed copyright information.
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// Although not listed as a copyright holder, thanks and recognition need
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// to go to Tom LaStrange, the original author of TWM.
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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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#ifndef __APPS_INCLUDE_GRAPHICS_TWM4NX_CRESIZE_HXX
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#define __APPS_INCLUDE_GRAPHICS_TWM4NX_CRESIZE_HXX
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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 <nuttx/nx/nxglib.h>
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#include "graphics/twm4nx/ctwm4nxevent.hxx"
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#include "graphics/twm4nx/cwindowevent.hxx"
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/////////////////////////////////////////////////////////////////////////////
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// Implementation Classes
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/////////////////////////////////////////////////////////////////////////////
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namespace NXWidgets
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{
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class CNxTkWindow; // Forward reference
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class CLabel; // Forward reference
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}
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namespace Twm4Nx
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{
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class CWindow; // Forward reference
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struct SEventMsg; // Forward reference
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// The CResize class is, logically, a part of CWindow. It is brought out
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// separately only to minimize the complexity of CWindows (and because it
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// matches the original partitioning of TWM). The downside is that (1) CWindow
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// instances have to be passed un-necessarily, and (2) the precludes the
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// possibiity of resizing two window simultaneous. That latter is not
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// currenlty supported anyway.
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class CResize : protected NXWidgets::CWidgetEventHandler,
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protected IEventTap,
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public CTwm4NxEvent
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{
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private:
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CTwm4Nx *m_twm4nx; /**< Cached Twm4Nx session */
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mqd_t m_eventq; /**< NxWidget event message queue */
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FAR NXWidgets::CNxTkWindow *m_sizeWindow; /**< The resize dimensions window */
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FAR NXWidgets::CLabel *m_sizeLabel; /**< Resize dimension label */
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FAR CWindow *m_resizeWindow; /**< The window being resized */
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FAR IEventTap *m_savedTap; /**< Saved IEventTap */
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uintptr_t m_savedTapArg; /**< Saved IEventTap argument */
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struct nxgl_point_s m_lastPos; /**< Last window position */
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struct nxgl_size_s m_lastSize; /**< Last window size */
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struct nxgl_point_s m_mousePos; /**< Last mouse position */
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bool m_resizing; /**< Resize in progress */
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bool m_resized; /**< The size has changed */
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bool m_mouseValid; /**< True: m_mousePos is valid */
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volatile bool m_paused; /**< The window was un-clicked */
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/**
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* Create the size window
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*/
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bool createSizeWindow(void);
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/**
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* Create the size label widget
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*/
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bool createSizeLabel(void);
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/**
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* Set the Window Size
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*/
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bool setWindowSize(FAR struct nxgl_size_s *size);
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/**
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* Update the size show in the size dimension label.
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*
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* @param size The size of the rubber band
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*/
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void updateSizeLabel(FAR struct nxgl_size_s &size);
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/**
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* This function handles the EVENT_RESIZE_BUTTON event. It will start a
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* new resize sequence. This occurs the first time that the toolbar
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* resize icon is clicked.
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*
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* @param msg. The received NxWidget RESIZE event message.
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* @return True if the message was properly handled. false is
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* return on any failure.
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*/
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bool startResize(FAR struct SEventMsg *eventmsg);
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/**
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* This function handles the EVENT_RESIZE_MOVE event. It will update
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* the resize information based on the new mouse position.
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*
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* @param msg. The received NxWidget RESIZE event message.
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* @return True if the message was properly handled. false is
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* return on any failure.
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*/
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bool updateSize(FAR struct SEventMsg *eventmsg);
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/**
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* This function handles the EVENT_RESIZE_PAUSE event. This occurs
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* when the window is un-clicked. Another click in the window
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* will resume the resize operation.
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*
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* @param msg. The received NxWidget RESIZE event message.
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* @return True if the message was properly handled. false is
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* return on any failure.
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*/
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bool pauseResize(FAR struct SEventMsg *eventmsg);
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/**
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* This function handles the EVENT_RESIZE_RESUME event. This occurs
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* when the window is clicked while paused.
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*
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* @param msg. The received NxWidget RESIZE event message.
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* @return True if the message was properly handled. false is
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* return on any failure.
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*/
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bool resumeResize(FAR struct SEventMsg *eventmsg);
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/**
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* This function handles the EVENT_RESIZE_STOP event. It will
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* terminate a resize sequence. This occurs when the resize button
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* is pressed a second time.
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*
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* @param msg. The received NxWidget RESIZE event message.
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* @return True if the message was properly handled. false is
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* return on any failure.
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*/
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bool endResize(FAR struct SEventMsg *eventmsg);
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/**
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* This function is called when there is any movement of the mouse or
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* touch position that would indicate that the object is being moved.
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*
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* This function overrides the virtual IEventTap::moveEvent method.
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*
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* @param pos The current mouse/touch X/Y position.
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* @param arg The user-argument provided that accompanies the callback
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* @return True: if the movement event was processed; false it was
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* ignored. The event should be ignored if there is not actually
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* a movement event in progress
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*/
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bool moveEvent(FAR const struct nxgl_point_s &pos,
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uintptr_t arg);
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/**
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* This function is called if the mouse left button is released or
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* if the touchscrreen touch is lost. This indicates that the
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* resize sequence is complete.
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*
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* This function overrides the virtual IEventTap::dropEvent method.
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*
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* @param pos The last mouse/touch X/Y position.
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* @param arg The user-argument provided that accompanies the callback
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* @return True: if the drop event was processed; false it was
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* ignored. The event should be ignored if there is not actually
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* a resize event in progress
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*/
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bool dropEvent(FAR const struct nxgl_point_s &pos,
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uintptr_t arg);
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/**
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* Is the tap enabled?
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*
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* @param arg The user-argument provided that accompanies the callback
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* @return True: If the the tap is enabled.
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*/
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inline bool isActive(uintptr_t arg)
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{
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return (!m_paused && m_resizing);
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}
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/**
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* Enable/disable the resizing. The disable event will cause resizing
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* to be paused.
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*
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* True is provided when (1) isActive() returns false, but (2) a mouse
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* report with a left-click is received.
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* False is provided when (1) isActive() returns true, but (2) a mouse
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* report without a left-click is received.
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*
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* In the latter is redundant since dropEvent() will be called immediately
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* afterward.
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*
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* @param pos. The mouse position at the time of the click or release
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* @param enable. True: Enable movement
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* @param arg The user-argument provided that accompanies the callback
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*/
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void enableMovement(FAR const struct nxgl_point_s &pos,
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bool enable, uintptr_t arg);
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public:
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/**
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* CResize Constructor
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*
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* @param twm4nx The Twm4Nx session
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*/
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CResize(CTwm4Nx *twm4nx);
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/**
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* CResize Destructor
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*/
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~CResize(void);
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/**
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* @return True if resize is in-progress
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*/
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inline bool resizing(void)
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{
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return m_resizing;
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}
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/**
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* CResize Initializer. Performs the parts of the CResize construction
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* that may fail.
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*
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* @result True is returned on success
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*/
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bool initialize(void);
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/**
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* Handle RESIZE events.
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*
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* @param msg. The received NxWidget RESIZE event message.
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* @return True if the message was properly handled. false is
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* return on any failure.
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*/
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bool event(FAR struct SEventMsg *msg);
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};
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}
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#endif // __APPS_INCLUDE_GRAPHICS_TWM4NX_CRESIZE_HXX
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