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nuttx-apps/include/graphics/nxwidgets/cscrollbarpanel.hxx
Alin Jerpelea 324155cd1e include: update licenses to Apache 
Gregory Nutt is has submitted the SGA

Uros Platise has submitted the ICLA

Ken Pettit has submitted the ICLA

Sebastien Lorquet has submitted the ICLA

Pierre-Noel Bouteville has submitted the ICLA

as a result we can migrate the licenses to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-06-11 05:05:27 -05:00

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/****************************************************************************
* apps/include/graphics/nxwidgets/cscrollbarpanel.hxx
*
* 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.
*
****************************************************************************/
/****************************************************************************
*
* Portions of this package derive from Woopsi (http://woopsi.org/) and
* portions are original efforts. It is difficult to determine at this
* point what parts are original efforts and which parts derive from Woopsi.
* However, in any event, the work of Antony Dzeryn will be acknowledged
* in most NxWidget files. Thanks Antony!
*
* Copyright (c) 2007-2011, Antony Dzeryn
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the names "Woopsi", "Simian Zombie" 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 Antony Dzeryn ``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 Antony Dzeryn 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.
*
****************************************************************************/
#ifndef __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CSCROLLBARPANEL_HXX
#define __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CSCROLLBARPANEL_HXX
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <nuttx/nx/nxglib.h>
#include "graphics/nxwidgets/cnxwidget.hxx"
#include "graphics/nxwidgets/cscrollingpanel.hxx"
#include "graphics/nxwidgets/cwidgetstyle.hxx"
#include "graphics/nxwidgets/cscrollbarvertical.hxx"
#include "graphics/nxwidgets/cscrollbarhorizontal.hxx"
#include "graphics/nxwidgets/cwidgeteventhandler.hxx"
#include "graphics/nxwidgets/iscrollable.hxx"
#include "graphics/nxwidgets/cgraphicsport.hxx"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Implementation Classes
****************************************************************************/
#if defined(__cplusplus)
namespace NXWidgets
{
/**
* Class containing a scrolling panel bordered by scrollbars.
*/
class CScrollbarPanel : public CNxWidget, public IScrollable,
public CWidgetEventHandler
{
protected:
CWidgetControl *m_widgetControl; /**< Widget control instance */
CScrollingPanel *m_panel; /**< Internal panel that
contains children. */
CScrollbarHorizontal *m_scrollbarHorizontal; /**< Horizontal scrollbar. */
CScrollbarVertical *m_scrollbarVertical; /**< Vertical scrollbar. */
uint8_t m_scrollbarWidth; /**< Width of the vertical
scrollbar. */
uint8_t m_scrollbarHeight; /**< Height of the horizontal
scrollbar. */
bool m_hasVerticalScrollbar; /**< Indicates the presence of
a vertical scrollbar. */
bool m_hasHorizontalScrollbar; /**< Indicates the presence of
a horizontal scrollbar. */
/**
* Creates the child widgets.
*/
void buildUI(void);
/**
* Draw the area of this widget that falls within the clipping region.
* Called by the redraw() function to draw all visible regions.
*
* @param port The CGraphicsPort to draw to.
* @see redraw()
*/
virtual void drawContents(CGraphicsPort *port);
/**
* Destructor.
*/
virtual ~CScrollbarPanel(void) { }
/**
* Copy constructor is protected to prevent usage.
*/
inline CScrollbarPanel(const CScrollbarPanel &scrollbarPanel)
: CNxWidget(scrollbarPanel) { }
public:
/**
* Constructor.
*
* @param pWidgetControl The widget control for the display.
* @param x The x coordinate of the widget.
* @param y The y coordinate of the widget.
* @param width The width of the widget.
* @param height The height of the widget.
* @param flags The usual widget flags.
* @param style The style that the widget should use. If this is not
* specified, the widget will use the values stored in the global
* g_defaultWidgetStyle object. The widget will copy the properties of
* the style into its own internal style object.
*/
CScrollbarPanel(CWidgetControl *pWidgetControl,
nxgl_coord_t x, nxgl_coord_t y,
nxgl_coord_t width, nxgl_coord_t height,
uint32_t flags,
CWidgetStyle *style = (CWidgetStyle *)NULL);
/**
* Scroll the panel by the specified amounts.
*
* @param dx The horizontal distance to scroll.
* @param dy The vertical distance to scroll.
*/
virtual void scroll(int32_t dx, int32_t dy);
/**
* Reposition the panel's scrolling region to the specified coordinates.
*
* @param x The new x coordinate of the scrolling region.
* @param y The new y coordinate of the scrolling region.
*/
virtual void jump(int32_t x, int32_t y);
/**
* Set whether or not horizontal scrolling is allowed.
*
* @param allow True to allow horizontal scrolling; false to deny it.
*/
virtual void setAllowsVerticalScroll(bool allow);
/**
* Set whether or not horizontal scrolling is allowed.
*
* @param allow True to allow horizontal scrolling; false to deny it.
*/
virtual void setAllowsHorizontalScroll(bool allow);
/**
* Sets the width of the virtual canvas.
*
* @param width The width of the virtual canvas.
*/
virtual void setCanvasWidth(const int32_t width);
/**
* Sets the height of the virtual canvas.
*
* @param height The height of the virtual canvas.
*/
virtual void setCanvasHeight(const int32_t height);
/**
* Returns true if vertical scrolling is allowed.
*
* @return True if vertical scrolling is allowed.
*/
virtual bool allowsVerticalScroll(void) const;
/**
* Returns true if horizontal scrolling is allowed.
*
* @return True if horizontal scrolling is allowed.
*/
virtual bool allowsHorizontalScroll(void) const;
/**
* Gets the x coordinate of the virtual canvas.
*
* @return The x coordinate of the virtual canvas.
*/
virtual const int32_t getCanvasX(void) const;
/**
* Gets the y coordinate of the virtual canvas.
*
* @return The y coordinate of the virtual canvas.
*/
virtual const int32_t getCanvasY(void) const;
/**
* Gets the width of the virtual canvas.
*
* @return The width of the virtual canvas.
*/
virtual const int32_t getCanvasWidth(void) const;
/**
* Gets the height of the virtual canvas.
*
* @return The height of the virtual canvas.
*/
virtual const int32_t getCanvasHeight(void) const;
/**
* Handle a widget scroll event.
*
* @param e The event data.
*/
void handleScrollEvent(const CWidgetEventArgs &e);
/**
* Handle a widget value change event.
*
* @param e The event data.
*/
void handleValueChangeEvent(const CWidgetEventArgs &e);
/**
* Gets a pointer to the CScrollingPanel widget contained within
* this widget.
*
* @return A pointer to the CScrollingPanel widget.
*/
inline CScrollingPanel *getPanel(void)
{
return m_panel;
}
};
}
#endif // __cplusplus
#endif // __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CSCROLLBARPANEL_HXX
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