324155cd1e
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>
454 lines
14 KiB
C++
454 lines
14 KiB
C++
/****************************************************************************
|
|
* apps/include/graphics/nxwidgets/cscrollingtextbox.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_CSCROLLINGTEXTBOX_HXX
|
|
#define __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CSCROLLINGTEXTBOX_HXX
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#include <nuttx/nx/nxglib.h>
|
|
|
|
#include "graphics/nxwidgets/cmultilinetextbox.hxx"
|
|
#include "graphics/nxwidgets/cwidgeteventhandler.hxx"
|
|
#include "graphics/nxwidgets/cwidgetstyle.hxx"
|
|
#include "graphics/nxwidgets/cnxstring.hxx"
|
|
#include "graphics/nxwidgets/iscrollable.hxx"
|
|
|
|
/****************************************************************************
|
|
* Pre-Processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Implementation Classes
|
|
****************************************************************************/
|
|
|
|
#if defined(__cplusplus)
|
|
|
|
namespace NXWidgets
|
|
{
|
|
class CScrollbarVertical;
|
|
class CNxFont;
|
|
|
|
/**
|
|
* Widget containing a CMultiLineTextBox and a vertical scrollbar. Exposed
|
|
* methods are more or less identical to the methods exposed by the
|
|
* CMultiLineTextBox to ensure that the two are interchangeable.
|
|
*/
|
|
|
|
class CScrollingTextBox : public ITextBox, public CNxWidget,
|
|
public IScrollable, public CWidgetEventHandler
|
|
{
|
|
protected:
|
|
CMultiLineTextBox *m_texbox; /**< Pointer to the textbox */
|
|
CScrollbarVertical *m_scrollbar; /**< Pointer to the scrollbar */
|
|
uint8_t m_scrollbarWidth; /**< Width of the scrollbar */
|
|
|
|
/**
|
|
* 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);
|
|
|
|
/**
|
|
* Resize the textbox to the new dimensions.
|
|
*
|
|
* @param width The new width.
|
|
* @param height The new height.
|
|
*/
|
|
|
|
virtual void onResize(nxgl_coord_t width, nxgl_coord_t height);
|
|
|
|
/**
|
|
* Destructor.
|
|
*/
|
|
|
|
virtual inline ~CScrollingTextBox(void) { }
|
|
|
|
/**
|
|
* Copy constructor is protected to prevent usage.
|
|
*/
|
|
|
|
inline CScrollingTextBox(const CScrollingTextBox& scrollingTextBox)
|
|
: CNxWidget(scrollingTextBox) { }
|
|
|
|
public:
|
|
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* @param pWidgetControl The widget control for the display.
|
|
* @param x The x coordinate of the text box, relative to its parent.
|
|
* @param y The y coordinate of the text box, relative to its parent.
|
|
* @param width The width of the textbox.
|
|
* @param height The height of the textbox.
|
|
* @param text Pointer to a string to display in the textbox.
|
|
* @param flags Standard widget flag options.
|
|
* @param maxRows The maximum number of rows the textbox can track. Adding
|
|
* text beyond this number will cause rows at the start of the text to be
|
|
* forgotten; text is essentially stored as a queue, and adding to the back
|
|
* of a full queue causes the front items to be popped off. Setting this to
|
|
* 0 will make the textbox track only the visible rows.
|
|
* @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.
|
|
*/
|
|
|
|
CScrollingTextBox(CWidgetControl *pWidgetControl,
|
|
nxgl_coord_t x, nxgl_coord_t y,
|
|
nxgl_coord_t width, nxgl_coord_t height,
|
|
const CNxString &text, uint32_t flags,
|
|
nxgl_coord_t maxRows = 0,
|
|
CWidgetStyle *style = (CWidgetStyle *)NULL);
|
|
|
|
/**
|
|
* Set the horizontal alignment of text within the textbox.
|
|
*
|
|
* @param alignment The horizontal position of the text.
|
|
*/
|
|
|
|
virtual void setTextAlignmentHoriz(CMultiLineTextBox::TextAlignmentHoriz alignment);
|
|
|
|
/**
|
|
* Set the vertical alignment of text within the textbox.
|
|
*
|
|
* @param alignment The vertical position of the text.
|
|
*/
|
|
|
|
virtual void setTextAlignmentVert(CMultiLineTextBox::TextAlignmentVert alignment);
|
|
|
|
/**
|
|
* Returns the number of "pages" that the text spans. A page
|
|
* is defined as the amount of text that can be displayed within
|
|
* the textbox at one time.
|
|
*
|
|
* @return The page count.
|
|
*/
|
|
|
|
virtual const uint16_t getPageCount(void) const;
|
|
|
|
/**
|
|
* Returns the current page.
|
|
*
|
|
* @return The current page.
|
|
* @see getPageCount().
|
|
*/
|
|
|
|
virtual const uint16_t getCurrentPage(void) const;
|
|
|
|
/**
|
|
* Returns a pointer to the Text object that contains the
|
|
* wrapped text used in the textbox. It is used as the
|
|
* pre-processed data source for the textbox, and should
|
|
* not be altered.
|
|
*
|
|
* @return Pointer to the Text object.
|
|
*/
|
|
|
|
virtual const CText *getText(void) const;
|
|
|
|
/**
|
|
* Set the text displayed in the textbox.
|
|
*
|
|
* @param text String to display.
|
|
*/
|
|
|
|
virtual void setText(const CNxString &text);
|
|
|
|
/**
|
|
* Append new text to the end of the current text
|
|
* displayed in the textbox.
|
|
*
|
|
* @param text String to append.
|
|
*/
|
|
|
|
virtual void appendText(const CNxString &text);
|
|
|
|
/**
|
|
* Remove all characters from the string from the start index onwards.
|
|
*
|
|
* @param startIndex Index to remove from.
|
|
*/
|
|
|
|
virtual void removeText(const unsigned int startIndex);
|
|
|
|
/**
|
|
* Remove specified number of characters from the string from the
|
|
* start index onwards.
|
|
*
|
|
* @param startIndex Index to remove from.
|
|
* @param count Number of characters to remove.
|
|
*/
|
|
|
|
virtual void removeText(const unsigned int startIndex, const unsigned int count);
|
|
|
|
/**
|
|
* Set the font used in the textbox.
|
|
*
|
|
* @param font Pointer to the new font.
|
|
*/
|
|
|
|
virtual void setFont(CNxFont *font);
|
|
|
|
/**
|
|
* Get the length of the text string.
|
|
*
|
|
* @return The length of the text string.
|
|
*/
|
|
|
|
virtual const unsigned int getTextLength(void) const;
|
|
|
|
/**
|
|
* Sets the cursor display mode.
|
|
*
|
|
* @param cursorMode Determines cursor display mode
|
|
*/
|
|
|
|
virtual void showCursor(EShowCursor cursorMode);
|
|
|
|
/**
|
|
* Shows the cursor in default mode (only when the TextBox has focus).
|
|
*/
|
|
|
|
inline void showCursor(void)
|
|
{
|
|
showCursor(SHOW_CURSOR_ONFOCUS);
|
|
}
|
|
|
|
/**
|
|
* Hides the cursor.
|
|
*/
|
|
|
|
inline void hideCursor(void)
|
|
{
|
|
showCursor(SHOW_CURSOR_NEVER);
|
|
}
|
|
|
|
/**
|
|
* Enables/disables cursor wrapping
|
|
*
|
|
* @param wrap True enables cursor wrapping
|
|
*/
|
|
|
|
virtual void wrapCursor(bool wrap);
|
|
|
|
/**
|
|
* Move the cursor to the text position specified. 0 indicates the start
|
|
* of the string. If position is greater than the length of the string,
|
|
* the cursor is moved to the end of the string.
|
|
*
|
|
* @param position The new cursor position.
|
|
*/
|
|
|
|
virtual void moveCursorToPosition(const int position);
|
|
|
|
/**
|
|
* Get the cursor position. This is the index within the string that
|
|
* the cursor is currently positioned over.
|
|
*
|
|
* @return position The cursor position.
|
|
*/
|
|
|
|
virtual const int getCursorPosition(void) const;
|
|
|
|
/**
|
|
* Insert text at the specified index.
|
|
*
|
|
* @param text The text to insert.
|
|
* @param index Index at which to insert the text.
|
|
*/
|
|
|
|
virtual void insertText(const CNxString &text, const unsigned int index);
|
|
|
|
/**
|
|
* Insert text at the current cursor position.
|
|
*
|
|
* @param text The text to insert.
|
|
*/
|
|
|
|
virtual void insertTextAtCursor(const CNxString &text);
|
|
|
|
/**
|
|
* Handles events raised by its sub-widgets.
|
|
*
|
|
* @param e Event arguments.
|
|
*/
|
|
|
|
virtual void handleValueChangeEvent(const CWidgetEventArgs &e);
|
|
|
|
/**
|
|
* Handles events raised by its sub-widgets.
|
|
*
|
|
* @param e Event arguments.
|
|
*/
|
|
|
|
virtual void handleScrollEvent(const CWidgetEventArgs &e);
|
|
|
|
/**
|
|
* 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;
|
|
|
|
/**
|
|
* 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;
|
|
};
|
|
}
|
|
|
|
#endif // __cplusplus
|
|
|
|
#endif // __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CSCROLLINGTEXTBOX_HXX
|