dee7f14b49
apps/system/nxplayer: Fix some logical errors from recent comments. They broke the build of the nxplayer as a library vs. a task. apps/graphics/nxglyphs: Fix yet more namespace problems.
graphics/nxwm/src/nxwm_main.cxx: Move from graphics/nxwidgets/UnitTests/nxwm/nxwm_main.cxx.
apps/graphicx/nx*: Fixes numerous build issues mostly associated with include paths and namespaces.
apps/nxglyphs: Decouple (mostly) from nxwidgets and nxwm so that they can be used elsewhere. Creates include/graphics/nxglyphs.h
apps/graphics/nxglyphs: Put all NxWidgets and NxWM glyphs into a common directory where they can eventually be shared. Not very sharable at the moment due to header file entanglements. Need a separate nxglyps.hxx header file.
Separate nxwidets and nxwm into separate directories. Remove old, common NxWidgets directory.
439 lines
13 KiB
C++
439 lines
13 KiB
C++
/****************************************************************************
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* apps/graphics/nxwidgets/src/cscrollbarpanel.cxx
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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, NxWidgets, nor the names of its contributors
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* me be 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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*
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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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/****************************************************************************
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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 "graphics/nxwidgets/cscrollbarpanel.hxx"
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#include "graphics/nxwidgets/cbutton.hxx"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Method Implementations
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****************************************************************************/
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using namespace NXWidgets;
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/**
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* Constructor.
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*
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* @param pWidgetControl The widget control for the display.
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* @param x The x coordinate of the widget.
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* @param y The y coordinate of the widget.
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* @param width The width of the widget.
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* @param height The height of the widget.
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* @param flags The usual widget flags.
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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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CScrollbarPanel::CScrollbarPanel(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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uint32_t flags, CWidgetStyle *style)
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: CNxWidget(pWidgetControl, x, y, width, height, flags, style)
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{
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m_scrollbarWidth = 10;
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m_scrollbarHeight = 10;
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m_hasVerticalScrollbar = true;
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m_hasHorizontalScrollbar = true;
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m_borderSize.top = 0;
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m_borderSize.right = 0;
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m_borderSize.left = 0;
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m_borderSize.bottom = 0;
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m_flags.borderless = true;
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m_widgetControl = pWidgetControl;
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m_panel = (CScrollingPanel *)NULL;
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m_scrollbarVertical = (CScrollbarVertical *)NULL;
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m_scrollbarHorizontal = (CScrollbarHorizontal *)NULL;
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buildUI();
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}
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/**
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* Scroll the panel by the specified amounts.
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*
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* @param dx The horizontal distance to scroll.
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* @param dy The vertical distance to scroll.
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*/
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void CScrollbarPanel::scroll(int32_t dx, int32_t dy)
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{
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m_panel->scroll(dx, dy);
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}
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/**
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* Reposition the panel's scrolling region to the specified coordinates.
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*
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* @param x The new x coordinate of the scrolling region.
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* @param y The new y coordinate of the scrolling region.
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*/
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void CScrollbarPanel::jump(int32_t x, int32_t y)
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{
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m_panel->jump(x, y);
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}
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/**
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* Set whether or not horizontal scrolling is allowed.
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*
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* @param allow True to allow horizontal scrolling; false to deny it.
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*/
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void CScrollbarPanel::setAllowsVerticalScroll(bool allow)
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{
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m_panel->setAllowsVerticalScroll(allow);
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if (m_hasVerticalScrollbar)
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{
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if (allow)
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{
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m_scrollbarVertical->enable();
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}
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else
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{
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m_scrollbarVertical->disable();
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}
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}
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}
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/**
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* Set whether or not horizontal scrolling is allowed.
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*
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* @param allow True to allow horizontal scrolling; false to deny it.
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*/
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void CScrollbarPanel::setAllowsHorizontalScroll(bool allow)
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{
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m_panel->setAllowsHorizontalScroll(allow);
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if (m_hasHorizontalScrollbar)
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{
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if (allow)
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{
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m_scrollbarHorizontal->enable();
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}
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else
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{
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m_scrollbarHorizontal->disable();
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}
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}
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}
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/**
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* Sets the width of the virtual canvas.
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*
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* @param width The width of the virtual canvas.
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*/
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void CScrollbarPanel::setCanvasWidth(const int32_t width)
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{
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m_panel->setCanvasWidth(width);
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m_scrollbarHorizontal->setMaximumValue(width);
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}
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/**
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* Sets the height of the virtual canvas.
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*
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* @param height The height of the virtual canvas.
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*/
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void CScrollbarPanel::setCanvasHeight(const int32_t height)
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{
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m_panel->setCanvasHeight(height);
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m_scrollbarVertical->setMaximumValue(height);
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}
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/**
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* Returns true if vertical scrolling is allowed.
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*
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* @return True if vertical scrolling is allowed.
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*/
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bool CScrollbarPanel::allowsVerticalScroll(void) const
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{
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return m_panel->allowsVerticalScroll();
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}
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/**
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* Returns true if horizontal scrolling is allowed.
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*
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* @return True if horizontal scrolling is allowed.
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*/
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bool CScrollbarPanel::allowsHorizontalScroll(void) const
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{
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return m_panel->allowsHorizontalScroll();
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}
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/**
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* Gets the x coordinate of the virtual canvas.
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*
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* @return The x coordinate of the virtual canvas.
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*/
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const int32_t CScrollbarPanel::getCanvasX(void) const
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{
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return m_panel->getCanvasX();
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}
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/**
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* Gets the y coordinate of the virtual canvas.
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*
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* @return The y coordinate of the virtual canvas.
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*/
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const int32_t CScrollbarPanel::getCanvasY(void) const
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{
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return m_panel->getCanvasY();
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}
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/**
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* Gets the width of the virtual canvas.
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*
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* @return The width of the virtual canvas.
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*/
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const int32_t CScrollbarPanel::getCanvasWidth(void) const
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{
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return m_panel->getCanvasWidth();
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}
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/**
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* Gets the height of the virtual canvas.
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*
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* @return The height of the virtual canvas.
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*/
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const int32_t CScrollbarPanel::getCanvasHeight(void) const
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{
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return m_panel->getCanvasHeight();
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}
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/**
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* Handle a widget scroll event.
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*
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* @param e The event data.
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*/
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void CScrollbarPanel::handleScrollEvent(const CWidgetEventArgs &e)
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{
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if (e.getSource() != NULL)
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{
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if (e.getSource() == m_panel)
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{
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if (m_scrollbarVertical != NULL)
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{
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m_scrollbarVertical->setRaisesEvents(false);
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m_scrollbarVertical->setValue(0 - m_panel->getCanvasY());
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m_scrollbarVertical->setRaisesEvents(true);
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}
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else if (m_scrollbarHorizontal != NULL)
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{
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m_scrollbarHorizontal->setRaisesEvents(false);
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m_scrollbarHorizontal->setValue(0 - m_panel->getCanvasX());
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m_scrollbarHorizontal->setRaisesEvents(true);
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}
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}
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}
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}
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/**
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* Handle a widget value change event.
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*
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* @param e The event data.
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*/
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void CScrollbarPanel::handleValueChangeEvent(const CWidgetEventArgs &e)
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{
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if (e.getSource() != NULL)
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{
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if (e.getSource() == m_scrollbarVertical)
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{
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if (m_panel != NULL)
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{
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m_panel->setRaisesEvents(false);
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m_panel->jump(m_panel->getCanvasX(), 0 - m_scrollbarVertical->getValue());
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m_panel->setRaisesEvents(true);
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}
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}
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else if (e.getSource() == m_scrollbarHorizontal)
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{
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if (m_panel != NULL)
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{
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m_panel->setRaisesEvents(false);
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m_panel->jump(0 - m_scrollbarHorizontal->getValue(), m_panel->getCanvasY());
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m_panel->setRaisesEvents(true);
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}
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}
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}
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}
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/**
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* Creates the child widgets.
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*/
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void CScrollbarPanel::buildUI(void)
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{
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CRect rect;
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getClientRect(rect);
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nxgl_coord_t panelWidth = rect.getWidth();
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if (m_hasVerticalScrollbar)
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{
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panelWidth -= m_scrollbarWidth;
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}
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nxgl_coord_t panelHeight = rect.getHeight();
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if (m_hasHorizontalScrollbar)
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{
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panelHeight -= m_scrollbarHeight;
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}
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m_panel = new CScrollingPanel(m_widgetControl, rect.getX(), rect.getY(),
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panelWidth, panelHeight, 0, &m_style);
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addWidget(m_panel);
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CRect panelRect;
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m_panel->getClientRect(panelRect);
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// Disable content scrolling by default, as the panel cannot be drawn to
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// without some additional programmer effort
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m_panel->setContentScrolled(false);
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// Adjust scrollbar dimensions based on scrollbar visibility
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nxgl_coord_t verticalScrollHeight = rect.getHeight();
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if (m_hasHorizontalScrollbar)
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{
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verticalScrollHeight -= m_scrollbarHeight;
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}
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nxgl_coord_t horizontalScrollWidth = rect.getWidth();
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if (m_hasVerticalScrollbar)
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{
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horizontalScrollWidth -= m_scrollbarWidth;
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}
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if (m_hasHorizontalScrollbar)
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{
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m_scrollbarHorizontal =
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new CScrollbarHorizontal(m_widgetControl,
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rect.getX(), rect.getHeight() - m_scrollbarHeight,
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horizontalScrollWidth, m_scrollbarHeight,
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&m_style);
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m_scrollbarHorizontal->setMinimumValue(0);
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m_scrollbarHorizontal->setMaximumValue(getCanvasWidth());
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m_scrollbarHorizontal->setPageSize(panelRect.getWidth());
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m_scrollbarHorizontal->addWidgetEventHandler(this);
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addWidget(m_scrollbarHorizontal);
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}
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if (m_hasVerticalScrollbar)
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{
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m_scrollbarVertical =
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new CScrollbarVertical(m_widgetControl,
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rect.getWidth() - m_scrollbarWidth,
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rect.getY(), m_scrollbarWidth,
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verticalScrollHeight, &m_style);
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m_scrollbarVertical->setMinimumValue(0);
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m_scrollbarVertical->setMaximumValue(getCanvasHeight());
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m_scrollbarVertical->setPageSize(panelRect.getHeight());
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m_scrollbarVertical->addWidgetEventHandler(this);
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addWidget(m_scrollbarVertical);
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}
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}
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/**
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* Draw the area of this widget that falls within the clipping region.
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* Called by the redraw() function to draw all visible regions.
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*
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* @param port The CGraphicsPort to draw to.
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* @see redraw()
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*/
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void CScrollbarPanel::drawContents(CGraphicsPort *port)
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{
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port->drawFilledRect(0, 0, getWidth(), getHeight(), getBackgroundColor());
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}
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