280 lines
9.2 KiB
C++
280 lines
9.2 KiB
C++
/****************************************************************************
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* apps/include/graphics/nxwidgets/cscrollbarhorizontal.hxx
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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*
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* Portions of this package derive from Woopsi (http://woopsi.org/) and
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* portions are original efforts. It is difficult to determine at this
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* point what parts are original efforts and which parts derive from Woopsi.
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* However, in any event, the work of Antony Dzeryn will be acknowledged
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* in most NxWidget files. Thanks Antony!
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*
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* Copyright (c) 2007-2011, Antony Dzeryn
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* All rights reserved.
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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 are met:
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*
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* * 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the names "Woopsi", "Simian Zombie" nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CSCROLLBARHORIZONTAL_HXX
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#define __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CSCROLLBARHORIZONTAL_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 <stdint.h>
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#include <stdbool.h>
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#include <nuttx/nx/nxglib.h>
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#include "graphics/nxwidgets/cnxwidget.hxx"
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#include "graphics/nxwidgets/cwidgeteventhandler.hxx"
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#include "graphics/nxwidgets/cwidgetstyle.hxx"
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#include "graphics/nxwidgets/islider.hxx"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Implementation Classes
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****************************************************************************/
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#if defined(__cplusplus)
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namespace NXWidgets
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{
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class CSliderHorizontal;
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class CGlyphButton;
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class CNxTimer;
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/**
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* Container class that holds a slider widget and two arrow buttons.
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* The interface is presents is virtually identical to the CSliderHorizontal
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* widget, which means the two are easily interchangeable. All events
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* raised by the internal slider widget are re-raised by this widget
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* to this widget's event handler, meaning its events are also identical
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* to the CSliderHorizontal's.
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*/
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class CScrollbarHorizontal : public ISlider, public CNxWidget, public CWidgetEventHandler
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{
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protected:
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CSliderHorizontal *m_slider; /**< Pointer to the slider widget */
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CGlyphButton *m_leftButton; /**< Pointer to the left button */
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CGlyphButton *m_rightButton; /**< Pointer to the right button */
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nxgl_coord_t m_buttonWidth; /**< Width of the buttons */
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uint8_t m_scrollTimeout; /**< Time until a button triggers
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another grip movement */
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CNxTimer *m_timer; /**< Controls slider button repeats */
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/**
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* Resize the scrollbar to the new dimensions.
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*
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* @param width The new width.
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* @param height The new height.
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*/
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virtual void onResize(nxgl_coord_t width, nxgl_coord_t height);
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/**
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* Copy constructor is protected to prevent usage.
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*/
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inline CScrollbarHorizontal(const CScrollbarHorizontal &scrollbarHorizontal)
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: CNxWidget(scrollbarHorizontal) { }
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public:
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/**
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* Constructor.
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*
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* @param pWidgetControl The widget control instance for the window.
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* @param x The x coordinate of the slider, relative to its parent.
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* @param y The y coordinate of the slider, relative to its parent.
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* @param width The width of the slider.
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* @param height The height of the slider.
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* @param style The style that the widget should use. If this is not
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* specified, the widget will use the values stored in the global
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* g_defaultWidgetStyle object. The widget will copy the properties of
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* the style into its own internal style object.
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*/
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CScrollbarHorizontal(CWidgetControl *pWidgetControl,
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nxgl_coord_t x, nxgl_coord_t y,
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nxgl_coord_t width, nxgl_coord_t height,
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CWidgetStyle *style = NULL);
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/**
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* Destructor.
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*/
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virtual inline ~CScrollbarHorizontal(void) { }
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/**
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* Get the smallest value that the slider can represent.
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*
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* @return The smallest value.
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*/
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const int getMinimumValue(void) const;
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/**
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* Get the largest value that the slider can represent.
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*
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* @return The largest value.
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*/
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const int getMaximumValue(void) const;
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/**
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* Get the current value of the slider.
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*
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* @return The current slider value.
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*/
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const int getValue(void) const;
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/**
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* Get the value represented by the height of the grip.
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* For sliders, this would typically be 1 (so each new
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* grip position is worth 1). For scrollbars, this
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* would be the height of the scrolling widget.
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*
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* @return The page size.
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*/
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const nxgl_coord_t getPageSize(void) const;
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/**
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* Set the smallest value that the slider can represent.
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*
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* @param value The smallest value.
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*/
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void setMinimumValue(const int value);
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/**
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* Set the largest value that the slider can represent.
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*
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* @param value The largest value.
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*/
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void setMaximumValue(const int value);
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/**
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* Set the value that of the slider. This will reposition
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* and redraw the grip.
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*
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* @param value The new value.
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*/
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void setValue(const int value);
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/**
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* Set the value that of the slider. This will reposition and redraw
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* the grip. The supplied value should be bitshifted left 16 places.
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* This ensures greater accuracy than the standard setValue() method if
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* the slider is being used as a scrollbar.
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*
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* @param value The new value.
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*/
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void setValueWithBitshift(const int32_t value);
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/**
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* Set the page size represented by the grip.
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*
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* @param pageSize The page size.
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* @see getPageSize().
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*/
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void setPageSize(const nxgl_coord_t pageSize);
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/**
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* Process events fired by the grip.
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*
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* @param e The event details.
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*/
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virtual void handleActionEvent(const CWidgetEventArgs &e);
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/**
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* Process events fired by the grip.
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*
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* @param e The event details.
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*/
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virtual void handleClickEvent(const CWidgetEventArgs &e);
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/**
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* Process events fired by the grip.
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*
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* @param e The event details.
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*/
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virtual void handleReleaseEvent(const CWidgetEventArgs &e);
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/**
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* Process events fired by the grip.
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*
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* @param e The event details.
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*/
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virtual void handleReleaseOutsideEvent(const CWidgetEventArgs &e);
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/**
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* Process events fired by the grip.
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*
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* @param e The event details.
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*/
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virtual void handleValueChangeEvent(const CWidgetEventArgs &e);
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};
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}
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#endif // __cplusplus
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#endif // __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CSCROLLBARHORIZONTAL_HXX
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